[Elecraft] Elecraft Digest, Vol 145, Issue 27
David Deitrick
dhdeitrick at mac.com
Mon May 23 07:00:27 EDT 2016
> On May 22, 2016, at 17:46, elecraft-request at mailman.qth.net wrote:
>
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>
> Today's Topics:
>
> 1. Re: Powering a k-pad from a K3S (john at kk9a.com)
> 2. Re: To new KX2 owners (KD6QZX)
> 3. Re: [KX3] To new KX2 owners (Wayne Burdick)
> 4. Re: K3S receive antenna (Don Wilhelm)
> 5. K3 and KX3 questions for Wayne (N6MQL)
> 6. Re: K3 and KX3 questions for Wayne (Ken G Kopp)
> 7. K2 PA Failures and Remote Antenna Switch (Dauer, Edward)
> 8. Re: K3 Equalizer comment (Richard Fjeld)
> 9. Re: K2 PA Failures and Remote Antenna Switch (Josh Fiden)
> 10. Elecraft Weekly SSB Net (John W Webster)
> 11. For sale P3-SVGA-Monitor (George Rebong)
> 12. SP-3 Speakers SOLD (Steve Ellington)
> 13. Re: K3 and KX3 questions for Wayne (David Orman)
> 14. Re: K3 and KX3 questions for Wayne (Nr4c)
> 15. Re: K3 and KX3 questions for Wayne (Bob N3MNT)
> 16. [KX2] To new KX2 owners (ae5x at juno.com)
> 17. Re: K3 and KX3 questions for Wayne (Art Nienhouse)
> 18. Re: K3 and KX3 questions for Wayne (Ken G Kopp)
> 19. Re: K3 and KX3 questions for Wayne (Walter Underwood)
> 20. Tuneup, Rescue, build your K2, K1, KX1, others (Alan D. Wilcox)
> 21. sub files (Ed Hoeck)
> 22. Elecraft CW Net Announcement (kevinr at coho.net)
> 23. Re: K3 and KX3 questions for Wayne (N6MQL)
> 24. Re: K3 Equalizer comment (Fred Jensen)
> 25. Re: K3 and KX3 questions for Wayne (Ron D'Eau Claire)
> 26. Re: K3 and KX3 questions for Wayne (Kevin Stover)
> 27. Re: K3 and KX3 questions for Wayne (Jim Brown)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 21 May 2016 22:15:44 -0400
> From: <john at kk9a.com>
> To: <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] Powering a k-pad from a K3S
> Message-ID: <000001d1b3cf$d93311e0$8b9935a0$@com>
> Content-Type: text/plain; charset="us-ascii"
>
> Yes you have to modify the K3S. Check the archives, this was answered last
> month by Wayne. I reposted a portion of his answer below:
>
> John KK9A
>
>
> You need to solder one end of an 1/8th-watt resistor to an SMD, and the
> other
> end to a via nearby. Or you could send it to us to do the work.
>
> Wayne
> N6KR
>
>
>
> From:Bob Novas
> Sat May 21 14:35:16 EDT 2016
>
> Say, just for the sake of the argument, that I were to purchase a K-pad. If
> I want to power it from the K3S over the cable connected to the plug on the
> bottom of the K3S, do I have to modify the K3S to get power to the K-pad?
> If so, how much do I have to take apart? Would it make any sense to
> purchase any other stuff at this juncture because the K3S is going to be
> apart, like the KDV3? Thanks, Bob - W3DK
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 21 May 2016 19:42:29 -0700 (MST)
> From: KD6QZX <kd6qzx at sbcglobal.net>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] To new KX2 owners
> Message-ID: <A929C4CA-4278-4EE4-ADE7-A018CA5DF339 at sbcglobal.net>
> Content-Type: text/plain; charset=us-ascii
>
> Campbell hill is closed SOTA thanks for the cool little HF rig. Scott AK6Q
>
>
>
>> On May 21, 2016, at 10:07 PM, wayne burdick [via Elecraft] <ml-node+s365791n7617734h88 at n2.nabble.com> wrote:
>>
>> Hi all,
>>
>> If you were among those who scooped up (in record time) the KX2s we brought to Dayton: thanks for your enthusiastic response! (Wish we'd brought more :)
>>
>> I know many of you have already unboxes the radios and are putting them on the air. If you have early questions or comments, feel free to send them to me directly, and/or post here. There are many knowledgable KX2 field testers lurking on our lists, including some top-flight SOTA operators.
>>
>> Trivia question: what's the closest SOTA peak to Hara Arena?
>>
>> 73,
>> Wayne
>> N6KR
>>
>> ----
>> http://www.elecraft.com
>> ______________________________________________________________
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>>
>> If you reply to this email, your message will be added to the discussion below:
>> http://elecraft.365791.n2.nabble.com/To-new-KX2-owners-tp7617734.html
>> To unsubscribe from Elecraft, click here.
>> NAML
>
>
>
>
> -----
> K3 #348 KX3 #2499
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/To-new-KX2-owners-tp7617734p7617736.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 21 May 2016 22:43:16 -0400
> From: Wayne Burdick <n6kr at elecraft.com>
> To: "yahoo at dupuie.com" <yahoo at dupuie.com>
> Cc: Elecraft Mailer <elecraft at mailman.qth.net>, "KX3 at yahoogroups.com"
> <KX3 at yahoogroups.com>
> Subject: Re: [Elecraft] [KX3] To new KX2 owners
> Message-ID: <22D00880-886B-42FA-9562-07929EFF9C7B at elecraft.com>
> Content-Type: text/plain; charset=utf-8
>
>
>
> ----
> http://www.elecraft.com
>
>> On May 21, 2016, at 10:28 PM, "Scott Dupuie Yahoo at Dupuie.com [KX3]" <KX3-noreply at yahoogroups.com> wrote:
>>
>> W8O/SW-012 - Hamilton County HP
>>
>>
>> Closest by one mile. Next is W8O/CT-001.
>>
>> Do I win a new KX2?
>>
>> Scott
>> AK5SD
>
> No, sorry. I was hoping to sneak out to activate it ;)
>
> Wayne
>
>
>>
>>> On May 21, 2016, at 9:05 PM, Wayne Burdick n6kr at elecraft.com [KX3] <KX3-noreply at yahoogroups.com> wrote:
>>>
>>> Hi all,
>>>
>>> If you were among those who scooped up (in record time) the KX2s we brought to Dayton: thanks for your enthusiastic response! (Wish we'd brought more :)
>>>
>>> I know many of you have already unboxes the radios and are putting them on the air. If you have early questions or comments, feel free to send them to me directly, and/or post here. There are many knowledgable KX2 field testers lurking on our lists, including some top-flight SOTA operators.
>>>
>>> Trivia question: what's the closest SOTA peak to Hara Arena?
>>>
>>> 73,
>>> Wayne
>>> N6KR
>>>
>>> ----
>>> http://www.elecraft.com
>>>
>>
>> __._,_.___
>> Posted by: Scott Dupuie <Scott at Dupuie.com>
>> Reply via web post ? Reply to sender ? Reply to group ? Start a New Topic ? Messages in this topic (2)
>>
>> Upgrade your account with the latest Yahoo Mail app
>> Get organized with the fast and easy-to-use Yahoo Mail app. Upgrade today!
>>
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>>
>>
>> __,_._,___
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 21 May 2016 22:45:22 -0400
> From: Don Wilhelm <donwilh at embarqmail.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3S receive antenna
> Message-ID: <57411D42.7010906 at embarqmail.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Leroy,
>
> The answer is "yes", but how to do it depends on your K3S physical
> configuration.
>
> If you only have the main receiver (no subRX), you can transmit on ANT1
> or ANT2, and connect a receive only antenna to the ANT IN BNC connector
> in the rear (set of 5 BNC jacks).
> Select RX ANT.
>
> If you have the SubRX installed, things get a bit more complicated, and
> it depends partly on how you have the subRX AUX input connected and
> whether the subRX is set to share the antenna with the main or whether
> it is set to use its AUX input.
>
> If the subRX AUX input TMP cable is connected to the TMP jack on the
> KAT3, then the AUX input for the subRX will be from the non-transmit
> antenna - in other words, if the main is set to transmit on ANT1, the
> SubRX will listen to ANT2 (assuming the subRX is set to use its AUX input).
> OTOH, if the AUX input for the SubRX is connected to the BNC AUX input,
> then a receive antenna can be connected to the BNC AUX jack and the
> subRX will listen to that RX antenna when the subRX is set to use its
> AUX input.
>
> 73,
> Don W3FPR
>
>
> On 5/21/2016 5:17 PM, lmarion wrote:
>> Can the K3S with antenna tuner installed receive on one antenna and transmit on another?
>>
>>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 21 May 2016 19:58:11 -0700
> From: N6MQL <n6mql at arrl.net>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <4AAD7A8D-1FFD-4625-A8DE-CAE515B325D6 at arrl.net>
> Content-Type: text/plain; charset=us-ascii
>
> Wayne,
>
> 2 things... First I mentioned to David S in the service department that the K3 is no longer transmitting more than 94 watts out on 17 meters regardless of the SWR/ impedance. David said that this was a known issue due to software and that it was being worked on. However I haven't seen anything about this issue so I'm wondering if this is true and if so has there been any updates to fix it.
> Secondly, I'm noticing that my KXPA100 can not produce more that 80 watts on most bands and 60 on others when I don't supply it with as much as 15v DC on a 30 amp supply. This after I did the KX3 / KPXA calibration procedure. Why is it that a "mobile" amp that would normally be powered with 12v DC from a car battery not be able to provide the power output that it is sold as (100 watts)?. Has there been some kind of revisions to the first run boards that I should be exchanging them with?
>
> Thank you for your answers 73
>
> Mike
> N6MQL
>
> ------------------------------
>
> Message: 6
> Date: Sat, 21 May 2016 21:11:30 -0600
> From: Ken G Kopp <kengkopp at gmail.com>
> To: N6MQL <n6mql at arrl.net>, elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID:
> <CAD4CdTP=T2KahAa6rq3_nqqDdu5rtGNV2bj9fex6DVwKtJg=CA at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Mike,
>
> A normal "12V" battery in a vehicle is almost never at 12V. About 14.4
> when the engine is running, and about 13.8 after when not under charge. A
> battery measuring "12V" is suspect.
>
> Read the specified input voltage AT THE POWER INPUT connector ... I'll
> wager it's lower than what's called for in the manual.
>
>
> ------------------------------
>
> Message: 7
> Date: Sun, 22 May 2016 04:05:40 +0000
> From: "Dauer, Edward" <edauer at law.du.edu>
> To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>,
> "josh at voodoolab.com" <josh at voodoolab.com>
> Subject: [Elecraft] K2 PA Failures and Remote Antenna Switch
> Message-ID: <A747746E-90C4-4974-B7AC-B70C37D1EDAF at law.du.edu>
> Content-Type: text/plain; charset="utf-8"
>
>
> Josh ?
>
> Thanks for looking further into it. I looked pretty carefully before the
> RCS-4 went into the trash - no electrolytics in the relay box that I could
> see. Maybe a manufacturing defect rather than a design defect? But it?s
> in a landfill somewhere now so I can?t confirm that. In my profession a
> skeptic might call that spoliation of the evidence. But the traces on the
> ?scope as I switched through the selector with no transmitter attached
> were unmistakable - very large very fast transient spikes. Not a good
> thing, whatever the cause.
>
> I wonder if the diodes that are in the RCS-4 system are actually being
> used as flyback or suppressor diodes. The RCS-4 power supply is low
> voltage AC, not DC. The diodes in the control box separate the positive
> half cycle from the negative half cycle; as I read it the diodes that are
> in the relay box select for each relay the half cycle they like, telling
> the relays to do what the control switch says it asked them to do given
> that there is but one relay voltage conductor - the center lead of the RF
> coax. Would they work double-duty as flybacks in that configuration?
> Pardon the anthropomorphisms - I have already confessed my intellectual
> limitations in the field.
>
> Hot switching is a theoretical possibility but if that means an
> operator-induced lack of synchrony between keying the TX and switching the
> antennas, I choose to believe it unlikely. And failures three times and
> every time and only when on that antenna system but not on any other?
> Improbable, I would think.
>
> In any case, the system that used the RF coax for the antenna relay
> voltages is no longer here. When it was here, I had repeated and rather
> expensive PA blowups. As soon as it left everything worked just right.
> Reverting to my other profession?s argot, that?s a correlation that
> implies causation. Lots of human behavior has been built on less.
>
> Anyway, life is good again. My K2 is happy. The people who sold me the
> new remote switch probably are too.
>
> Ted, KN1CBR
>
>
>>
>> ------------------------------
>>
>> Message: 17
>> Date: Sat, 21 May 2016 13:59:50 -0700
>> From: Josh Fiden <josh at voodoolab.com>
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] K2 PA Failures and Remote Antenna Switch
>> System
>> Message-ID: <5740CC46.3070300 at voodoolab.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> Reviewing the schematic on Ameritron.com for RCS-4 there is a 220uF
>> electrolytic across each relay coil. There are also a pair of diodes
>> which will clamp the coil voltage, although it might not be immediately
>> apparent since they're not directly across the coils. Unlikely that
>> these parts are missing since they're not just clamps, but necessary for
>> the selector to function.
>>
>> This does not look like any design flaw of the RCS-4. If I had to guess
>> without seeing the hardware, it seems more likely that a failure
>> occurred to cause hot switching of the antenna... if that was happening
>> repeatedly, the finals wouldn't be happy!
>>
>> 73,
>> Josh W6XU
>>
>>> Inside the relay box I found no diodes and no capacitors across the
>>> relays that might have been used in the design to avoid this kind of
>>> problem.
>>
>
> ------------------------------
>
> Message: 8
> Date: Sat, 21 May 2016 23:33:46 -0500
> From: Richard Fjeld <rpfjeld at outlook.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 Equalizer comment
> Message-ID: <BLU436-SMTP17451493849EA08AF8F2F3ABF4D0 at phx.gbl>
> Content-Type: text/plain; charset="windows-1252"; format=flowed
>
> By looking at how his signal filled out the voice band in the waterfall,
> and also the pattern of it on the display. It is a crude test using a
> person's voice. Audio reports were the final test. He wasn't able to
> adjust it by monitoring his own voice.
>
> It would be better if the transmitting station had something like an AF
> generator audibly coupled to the microphone to do a freq run within the
> voice band at a constant audio level.
>
> Dick, n0ce
>
>
> On 5/21/2016 9:01 PM, Jim Brown wrote:
>> On Sat,5/21/2016 7:54 AM, Richard Fjeld wrote:
>>> I was asked to help a ham get the transmit audio on his new import
>>> equalized. What an experience!
>>
>> How did you use the P3 to do this?
>>
>> 73, Jim K9YC
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to rpfjeld at outlook.com
>
>
>
> ------------------------------
>
> Message: 9
> Date: Sat, 21 May 2016 23:33:59 -0700
> From: Josh Fiden <josh at voodoolab.com>
> To: "Dauer, Edward" <edauer at law.du.edu>, "elecraft at mailman.qth.net"
> <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K2 PA Failures and Remote Antenna Switch
> Message-ID: <574152D7.9050005 at voodoolab.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hi Ted,
>
> I see that you're right about no big caps on two of the relays. I was
> looking at the current version schematic, but there's an older one
> posted on W8JI's site with a completely different arrangement which must
> be what you had. That older circuit design is less than clever (IMHO).
>
> When a relay is deenergized, the steering diodes & part of the bridge
> are all forward biased forming a clamp of sorts. Not as effective as if
> a diode were directly across the coil with short leads.
>
> I did not mean to imply operator error as the cause of failure. I was
> guessing hot switching the antenna related to some intermittent hardware
> problem.
>
> Glad you found the source of the problem. Sounds like you put that old
> RCS-4 right where it belongs!
>
> 73,
> Josh W6XU
>
> On 5/21/2016 9:05 PM, Dauer, Edward wrote:
>> Josh ?
>>
>> Thanks for looking further into it. I looked pretty carefully before the
>> RCS-4 went into the trash - no electrolytics in the relay box that I could
>> see. Maybe a manufacturing defect rather than a design defect? But it?s
>> in a landfill somewhere now so I can?t confirm that. In my profession a
>> skeptic might call that spoliation of the evidence. But the traces on the
>> ?scope as I switched through the selector with no transmitter attached
>> were unmistakable - very large very fast transient spikes. Not a good
>> thing, whatever the cause.
>>
>> I wonder if the diodes that are in the RCS-4 system are actually being
>> used as flyback or suppressor diodes. The RCS-4 power supply is low
>> voltage AC, not DC. The diodes in the control box separate the positive
>> half cycle from the negative half cycle; as I read it the diodes that are
>> in the relay box select for each relay the half cycle they like, telling
>> the relays to do what the control switch says it asked them to do given
>> that there is but one relay voltage conductor - the center lead of the RF
>> coax. Would they work double-duty as flybacks in that configuration?
>> Pardon the anthropomorphisms - I have already confessed my intellectual
>> limitations in the field.
>>
>> Hot switching is a theoretical possibility but if that means an
>> operator-induced lack of synchrony between keying the TX and switching the
>> antennas, I choose to believe it unlikely. And failures three times and
>> every time and only when on that antenna system but not on any other?
>> Improbable, I would think.
>>
>> In any case, the system that used the RF coax for the antenna relay
>> voltages is no longer here. When it was here, I had repeated and rather
>> expensive PA blowups. As soon as it left everything worked just right.
>> Reverting to my other profession?s argot, that?s a correlation that
>> implies causation. Lots of human behavior has been built on less.
>>
>> Anyway, life is good again. My K2 is happy. The people who sold me the
>> new remote switch probably are too.
>>
>> Ted, KN1CBR
>>
>
>
>
> ------------------------------
>
> Message: 10
> Date: Sun, 22 May 2016 00:01:39 -0700
> From: John W Webster <jwebsterlsu at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Elecraft Weekly SSB Net
> Message-ID: <2613B6B1-937D-419E-BB85-C7BE171696AD at gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
> Please consider joining us for the weekly Sunday Elecraft SSB net on 20m.
>
> Time: 18:00z (UTC) 11am Pacific; 2pm Eastern
> Frequency: 14.303.5
>
> We would love to have the first KX2 checkin from wherever you are (Dayton even!)
>
> Current net control, Eric WB9JNZ sent the following list of check-ins over the last
> two weeks with particularly difficult propagation.
>
> 73
>
> John, N6JW
>
> Elecraft Net 5-15-16
>
> WB9JNZ Eric IL K3 4017 Net Control NSRC CLUB MEMBER
>
> W4RKS Jim TX K3 3618
>
> KG5ABW Ed MI Yaesu ft 1200 1st time check in
>
> W8OV Dave TX K3 3139
>
> N9TF Gene IL K3S 10057
>
> N6JW John CA K3 936
>
> K5ZCJ Larry OK K3S 10032
>
> NC0JW Jim CO K3 1356
>
> K1NW Brian RI K3 4974
>
> KC9USC Robert IL KX3 4460 NSRC CLUB MEMBER
>
> KK6DA David CA K3S 10125
>
> W4DML Doug TN K3 6433
>
> NS7P Phil OR K3 1826
>
> K6WDE Dave CA KX3 4599
>
> W0CZ Ken ND K3S 10329
>
> W7QHD Kurt AZ K2 1538
>
> N9DC/M Maurice IN IC 7000
>
> WM6P Steve GA K3 8133
>
> KE7HGE Ken WA KX3 4540 QRP
>
> N4NRW Roger SC K3 1318
>
> K7BRR Bill AZ K3 5545
>
> VA7ZOO Bill BC KX3 3035 QRP
>
> K6VDN John NV KX3 8046
>
>
>
> Elecraft Net 5-8-16
>
> WB9JNZ Eric IL K3 4017 Net Control
>
> NM7J Steve NV K3 2105
>
> K5ZCJ Larry OK K3S 10032
>
> NC0JW Jim CO K3 1356
>
> WB5JJA Ray OK K3 7877
>
> W7SNR Bob AZ K3 343
>
> W2RWA Dick NY K3 2603
>
> KK6DA David CA K3S 10125
>
> W4RKS Jim TX K3 3618
>
> N6JW John CA K3 936
>
> KD6SBK Bruce AZ FT 857
>
> W7QHD Kurt AZ K2 1538
>
> AE7MX August AZ unknown radio
>
> N9SRA Steve IL K3S 10563 NSRC CLUB MEMBER
>
> K6WDE Dave CA KX3 4599
>
> K7BRR Bill AZ K3 5545
>
> ------------------------------
>
> Message: 11
> Date: Sun, 22 May 2016 06:08:00 -0700
> From: George Rebong <ke6te.9 at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] For sale P3-SVGA-Monitor
> Message-ID: <E3A41BB3-1DED-4E45-8E29-8CA2AB273C85 at gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
> Selling my Elecraft P3 High performance Panadaptor with P3SVGA Video Adapter and P3TXMON TX Monitor Power and Waveform Display Adapter with
> DCHF-2000 1.8-54 MHz, 1- 2000W HF 2000W Max directional coupler.
> $950 includes shipping to CONUS. Non Smoker. Paypal or USPS money order. George KE6TE Call 916-600-2717.
>
> Sent from my iPad
>
> ------------------------------
>
> Message: 12
> Date: Sun, 22 May 2016 09:27:57 -0400
> From: Steve Ellington <steven4lq at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] SP-3 Speakers SOLD
> Message-ID:
> <CAHBT4RvhQXtcZm8WGnh0e8bFRLjWi2_QfKGu_cWBq9JGOD_kMg at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> They're gone.
> Thanks to the multitude who replied!
> N4LQ
>
>
> ------------------------------
>
> Message: 13
> Date: Sun, 22 May 2016 09:52:14 -0500
> From: David Orman <ormandj at corenode.com>
> To: N6MQL <n6mql at arrl.net>
> Cc: Elecraft Reflector <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID:
> <CAGxZ45pv6U_x0JEAhEz3PX95Yqvg0jN+_vHDAC2h8Jnf2snArg at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Another question - how long/what gauge is the wire running to your KXPA100?
> I wouldn't expect enough drop to pull your voltage down to a point at which
> it cuts back power, but you never know. Check your KX3 for the source
> voltage when transmitting, that'll tell you if you're dropping below the
> threshold for power reduction. For example, 16 gauge copper will drop about
> 1.2 volts on a 10 foot run @ 15A current draw.
>
> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:
>
>> Wayne,
>>
>> 2 things... First I mentioned to David S in the service department that
>> the K3 is no longer transmitting more than 94 watts out on 17 meters
>> regardless of the SWR/ impedance. David said that this was a known issue
>> due to software and that it was being worked on. However I haven't seen
>> anything about this issue so I'm wondering if this is true and if so has
>> there been any updates to fix it.
>> Secondly, I'm noticing that my KXPA100 can not produce more that 80 watts
>> on most bands and 60 on others when I don't supply it with as much as 15v
>> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
>> procedure. Why is it that a "mobile" amp that would normally be powered
>> with 12v DC from a car battery not be able to provide the power output that
>> it is sold as (100 watts)?. Has there been some kind of revisions to the
>> first run boards that I should be exchanging them with?
>>
>> Thank you for your answers 73
>>
>> Mike
>> N6MQL
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to ormandj at corenode.com
>>
>
>
> ------------------------------
>
> Message: 14
> Date: Sun, 22 May 2016 11:40:43 -0400
> From: Nr4c <nr4c at widomaker.com>
> To: David Orman <ormandj at corenode.com>
> Cc: N6MQL <n6mql at arrl.net>, Elecraft Reflector
> <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <F6378513-B4D3-4D58-8766-377E33184BDA at widomaker.com>
> Content-Type: text/plain; charset=us-ascii
>
> Or just use the Voltage reading displayed on the K3/KX3 front panel. It's quite accurate.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On May 22, 2016, at 10:52 AM, David Orman <ormandj at corenode.com> wrote:
>>
>> Another question - how long/what gauge is the wire running to your KXPA100?
>> I wouldn't expect enough drop to pull your voltage down to a point at which
>> it cuts back power, but you never know. Check your KX3 for the source
>> voltage when transmitting, that'll tell you if you're dropping below the
>> threshold for power reduction. For example, 16 gauge copper will drop about
>> 1.2 volts on a 10 foot run @ 15A current draw.
>>
>>> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:
>>>
>>> Wayne,
>>>
>>> 2 things... First I mentioned to David S in the service department that
>>> the K3 is no longer transmitting more than 94 watts out on 17 meters
>>> regardless of the SWR/ impedance. David said that this was a known issue
>>> due to software and that it was being worked on. However I haven't seen
>>> anything about this issue so I'm wondering if this is true and if so has
>>> there been any updates to fix it.
>>> Secondly, I'm noticing that my KXPA100 can not produce more that 80 watts
>>> on most bands and 60 on others when I don't supply it with as much as 15v
>>> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
>>> procedure. Why is it that a "mobile" amp that would normally be powered
>>> with 12v DC from a car battery not be able to provide the power output that
>>> it is sold as (100 watts)?. Has there been some kind of revisions to the
>>> first run boards that I should be exchanging them with?
>>>
>>> Thank you for your answers 73
>>>
>>> Mike
>>> N6MQL
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to ormandj at corenode.com
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to nr4c at widomaker.com
>
>
>
> ------------------------------
>
> Message: 15
> Date: Sun, 22 May 2016 08:58:12 -0700 (MST)
> From: Bob N3MNT <bob at hogbytes.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <1463932692247-7617749.post at n2.nabble.com>
> Content-Type: text/plain; charset=us-ascii
>
> I noticed that my KXPA100 output was a little low so I checked the output of
> my 30A supply. It was a little low. I adjusted it up from 13.6V to 14.0
> and all is well.
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-KX3-questions-for-Wayne-tp7617739p7617749.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
>
> ------------------------------
>
> Message: 16
> Date: Sun, 22 May 2016 16:05:24 GMT
> From: "ae5x at juno.com" <ae5x at juno.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] [KX2] To new KX2 owners
> Message-ID: <20160522.110524.8314.0 at webmail51.vgs.untd.com>
> Content-Type: text/plain; charset=windows-1252
>
> I'm glad you left some back in Aptos so that us stay-at-homes had stock from which to order :-)
>
> John AE5X
> http://ae5x.blogspot.com/
>
>
> _________________________________________
>
>> If you were among those who scooped up (in record time) the KX2s we brought to Dayton: thanks for your enthusiastic response! (Wish we'd brought more :)
> ____________________________________________________________
> The New York Times
> Finding Love Again, This Time With A Man
> http://thirdpartyoffers.juno.com/TGL3131/5741d8ef922e758ef57a0st03vuc
>
>
> ------------------------------
>
> Message: 17
> Date: Sun, 22 May 2016 12:19:22 -0500
> From: Art Nienhouse <ka9zap at gmail.com>
> To: Harry Yingst via Elecraft <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <5741EA1A.1070504 at gmail.com>
> Content-Type: text/plain; charset=iso-8859-15; format=flowed
>
> */My experience with my KXPA-100 that the power output would not ever
> get to the advertised 100 watts on 40 meters using the supplied power
> cable that came with my kit was worse.
>
> Even after setting the 45 amp power supply to the highest out put it
> would do, the radio reported 13.8 volts on receive, on key down it would
> drop well below ( on some bands ) to 12 volts.
>
> After replacing the pwr cable with a 10 gauge wire the supply reported
> at the radio is 14.5 rx, tx is 13.8 the power output is at 100 watts
> most bands 110 on one band and the only band I really care about is 40
> where it always has been below the other bands is now at 99 to 100 watts.
>
> I believe that there was a firmware update that made this issue worse as
> it was at one time doing around 80 to 85 watts on 40 meters which I was
> living with, most other bands 100 to 110 watts, using the supplied
> power cable that came with my kit.
>
> If its sold as a mobile amp then it should be capable of doing the
> advertised 100 watts ....at 12 volts.... ......( I know the advertizing
> stated at 13.8 volts ) ......to achieve the 100 watts.
>
> To be completely truthful it should be stated what can be expected for
> power out at 12 v connected to a car deep cycle battery with the
> supplied power cable...mine did 60 watts on 40 meters with the latest
> bata firmware.
>
> At the very least a ( quality 10 gauge power cable ) should be supplied
> with the amp, and all 100 watt output radios.
> I took the advice of this group to purchase Powerwerx Red/Black power
> cable not the cheapest however quality is very good.
> With my power supply set to 14.4 volts I get the advertized 100 watts now.
>
> Regards
> Art
> ka9zap
> /*
> On 5/21/2016 9:58 PM, N6MQL wrote:
>> Wayne,
>>
>> 2 things... First I mentioned to David S in the service department that the K3 is no longer transmitting more than 94 watts out on 17 meters regardless of the SWR/ impedance. David said that this was a known issue due to software and that it was being worked on. However I haven't seen anything about this issue so I'm wondering if this is true and if so has there been any updates to fix it.
>> Secondly, I'm noticing that my KXPA100 can not produce more that 80 watts on most bands and 60 on others when I don't supply it with as much as 15v DC on a 30 amp supply. This after I did the KX3 / KPXA calibration procedure. Why is it that a "mobile" amp that would normally be powered with 12v DC from a car battery not be able to provide the power output that it is sold as (100 watts)?. Has there been some kind of revisions to the first run boards that I should be exchanging them with?
>>
>> Thank you for your answers 73
>>
>> Mike
>> N6MQL
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to ka9zap at gmail.com
>
>
>
> ------------------------------
>
> Message: 18
> Date: Sun, 22 May 2016 11:52:32 -0600
> From: Ken G Kopp <kengkopp at gmail.com>
> To: Nr4c <nr4c at widomaker.com>, elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID:
> <CAD4CdTPPGyxTmc2Orj=G5KhdkgrKpmoQqdzn9k9bWez7br7H2w at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Bill,
>
> The front panel voltage display on a KX3 will -not- be accurate
> for the voltage at the input- power connector of the KXPA100.
> This voltage must be measured AT THE CONNECTOR on the
> rear of the KXPA100 to know what's being delivered to the PA.
>
> 73!
>
> K0PP
>
> On Sun, May 22, 2016 at 9:40 AM, Nr4c <nr4c at widomaker.com> wrote:
>
>> Or just use the Voltage reading displayed on the K3/KX3 front panel. It's
>> quite accurate.
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
>>
>>> On May 22, 2016, at 10:52 AM, David Orman <ormandj at corenode.com> wrote:
>>>
>>> Another question - how long/what gauge is the wire running to your
>> KXPA100?
>>> I wouldn't expect enough drop to pull your voltage down to a point at
>> which
>>> it cuts back power, but you never know. Check your KX3 for the source
>>> voltage when transmitting, that'll tell you if you're dropping below the
>>> threshold for power reduction. For example, 16 gauge copper will drop
>> about
>>> 1.2 volts on a 10 foot run @ 15A current draw.
>>>
>>>> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:
>>>>
>>>> Wayne,
>>>>
>>>> 2 things... First I mentioned to David S in the service department that
>>>> the K3 is no longer transmitting more than 94 watts out on 17 meters
>>>> regardless of the SWR/ impedance. David said that this was a known issue
>>>> due to software and that it was being worked on. However I haven't seen
>>>> anything about this issue so I'm wondering if this is true and if so has
>>>> there been any updates to fix it.
>>>> Secondly, I'm noticing that my KXPA100 can not produce more that 80
>> watts
>>>> on most bands and 60 on others when I don't supply it with as much as
>> 15v
>>>> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
>>>> procedure. Why is it that a "mobile" amp that would normally be powered
>>>> with 12v DC from a car battery not be able to provide the power output
>> that
>>>> it is sold as (100 watts)?. Has there been some kind of revisions to the
>>>> first run boards that I should be exchanging them with?
>>>>
>>>> Thank you for your answers 73
>>>>
>>>> Mike
>>>> N6MQL
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Elecraft at mailman.qth.net
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>> Message delivered to ormandj at corenode.com
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to nr4c at widomaker.com
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to kengkopp at gmail.com
>>
>
>
> ------------------------------
>
> Message: 19
> Date: Sun, 22 May 2016 11:13:26 -0700
> From: Walter Underwood <wunder at wunderwood.org>
> To: Elecraft List <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <C4A14C47-C9DE-4D18-A8CF-32E6A456CC51 at wunderwood.org>
> Content-Type: text/plain; charset=us-ascii
>
> According to the manual, you can use the KXPA Utility to read the voltmeter inside the KXPA100.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On May 22, 2016, at 10:52 AM, Ken G Kopp <kengkopp at gmail.com> wrote:
>>
>> Bill,
>>
>> The front panel voltage display on a KX3 will -not- be accurate
>> for the voltage at the input- power connector of the KXPA100.
>> This voltage must be measured AT THE CONNECTOR on the
>> rear of the KXPA100 to know what's being delivered to the PA.
>>
>> 73!
>>
>> K0PP
>>
>> On Sun, May 22, 2016 at 9:40 AM, Nr4c <nr4c at widomaker.com> wrote:
>>
>>> Or just use the Voltage reading displayed on the K3/KX3 front panel. It's
>>> quite accurate.
>>>
>>> Sent from my iPhone
>>> ...nr4c. bill
>>>
>>>
>>>> On May 22, 2016, at 10:52 AM, David Orman <ormandj at corenode.com> wrote:
>>>>
>>>> Another question - how long/what gauge is the wire running to your
>>> KXPA100?
>>>> I wouldn't expect enough drop to pull your voltage down to a point at
>>> which
>>>> it cuts back power, but you never know. Check your KX3 for the source
>>>> voltage when transmitting, that'll tell you if you're dropping below the
>>>> threshold for power reduction. For example, 16 gauge copper will drop
>>> about
>>>> 1.2 volts on a 10 foot run @ 15A current draw.
>>>>
>>>>> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:
>>>>>
>>>>> Wayne,
>>>>>
>>>>> 2 things... First I mentioned to David S in the service department that
>>>>> the K3 is no longer transmitting more than 94 watts out on 17 meters
>>>>> regardless of the SWR/ impedance. David said that this was a known issue
>>>>> due to software and that it was being worked on. However I haven't seen
>>>>> anything about this issue so I'm wondering if this is true and if so has
>>>>> there been any updates to fix it.
>>>>> Secondly, I'm noticing that my KXPA100 can not produce more that 80
>>> watts
>>>>> on most bands and 60 on others when I don't supply it with as much as
>>> 15v
>>>>> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
>>>>> procedure. Why is it that a "mobile" amp that would normally be powered
>>>>> with 12v DC from a car battery not be able to provide the power output
>>> that
>>>>> it is sold as (100 watts)?. Has there been some kind of revisions to the
>>>>> first run boards that I should be exchanging them with?
>>>>>
>>>>> Thank you for your answers 73
>>>>>
>>>>> Mike
>>>>> N6MQL
>>>>> ______________________________________________________________
>>>>> Elecraft mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:Elecraft at mailman.qth.net
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>> Message delivered to ormandj at corenode.com
>>>>>
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Elecraft at mailman.qth.net
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>> Message delivered to nr4c at widomaker.com
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to kengkopp at gmail.com
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to wunder at wunderwood.org
>
>
>
> ------------------------------
>
> Message: 20
> Date: Sun, 22 May 2016 14:15:05 -0400
> From: "Alan D. Wilcox" <alan at wilcoxengineering.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Tuneup, Rescue, build your K2, K1, KX1, others
> Message-ID:
> <DB50AEFF-B1DF-4C2F-AF92-426DEF55CAE2 at wilcoxengineering.com>
> Content-Type: text/plain; charset=us-ascii
>
> Hello,
>
> Have you always wanted an Elecraft? A KX1, K1, K2, K3, whatever?
> Does your K2 need a tuneup?
> I build and service them all!
>
> See what my clients have said about my construction and service work at
> http://www.eham.net/reviews/detail/6768 <http://www.eham.net/reviews/detail/6768>
>
> Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure -- are at
> http://wilcoxengineering.com/kpa100-in-ec2/ <http://wilcoxengineering.com/kpa100-in-ec2/>
>
> In addition to tuning your rig, I can also rescue a building project you might have started some time ago.
>
> Cheers,
> Alan
>
> Alan D. Wilcox, W3DVX (K2-5373, K3-40)
> 570-478-0736 (cell, text)
> http://amazon.com/author/alandwilcox
> Williamsport, PA 17701
>
>
>
> ------------------------------
>
> Message: 21
> Date: Sun, 22 May 2016 14:27:29 -0400
> From: Ed Hoeck <edkn3e at gmail.com>
> To: Elecraft at mailman.qth.net
> Subject: [Elecraft] sub files
> Message-ID:
> <CAArGK3ShvR7-4tBq9GY+G3UcCrqVMM++RA9W0_m+tbR8WB=-ag at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> I keep getting the error message from Spot Collector that the file
> BandModes.txt does not exist how do I correct this problem.
>
>
> ------------------------------
>
> Message: 22
> Date: Sun, 22 May 2016 11:40:03 -0700
> From: "kevinr at coho.net" <kevinr at coho.net>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Elecraft CW Net Announcement
> Message-ID: <9c2ef4f1-614b-2123-700b-aac46098de99 at coho.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> After a cold, wet week at least the propagation has marginally
> improved. A new Elecraft rig was announced on Wednesday. It looks like
> a good fit for those of us who work a little radio into our hiking,
> canoeing, or XC skiing sojourns. I was reading history (which I am
> wont to do) and found a QRP rig circa 1965. It was interesting to
> compare Elecraft's new rig with this design :
> http://www.militaryradio.com/spyradio/delco5300.html. How things have
> changed!
>
> Please join us on:
> 14050 kHz at 2200z Sunday (3 PM PDT Sunday)
> 7045 kHz at 0100z Monday (6 PM PDT Sunday)
>
> 73,
> Kevin. KD5ONS
>
>
>
> ------------------------------
>
> Message: 23
> Date: Sun, 22 May 2016 11:46:13 -0700
> From: N6MQL <pncengineering at gmail.com>
> To: Elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <5741FE75.9040801 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Although I appreciate all of your answers I specifically asked these
> questions of Wayne because I was making a point to let him know of my
> disapproval of the fact that the KXPA100 amp is incapable of running a
> full 100 watts on a standard 12v battery. Furthermore I was trying to
> get an explanation from the head designer as to why my amp that has a
> 30amp power supply at 15v (read on the KX3) or 15.4v at the input is
> unable to transmit at a full 100 watts on all bands. Yes, I have the
> supplied cable with fuses attached, it's only 3 feet long, and the
> transmit vs' receive voltage is less than a volt difference. So all of
> those bases have been covered. As noted I have also completed the KX3
> power configuration, and the KX3 to KPA matching alignment procedure...
> I was alluded to the idea that there were a second revision of boards
> that came out for the KXPA100 after the early models were shipped. I
> have also heard that those boards help increase the output power.
> Therefore I was asking WAYNE if this were the case, and perhaps having
> them would help this situation. As for the 12v not running the amp, this
> IS an issue because at field day we have 150 Ah batteries that run 12
> volts, and it would be nice to have my 100 watt amp run a full 100
> watts. Again, this was designed as a portable amp. I would expect that
> at 12v we should be able to get the full rating out of it.
>
> On another note, what may have also gotten lost due to all those trying
> to be helpful, but cluttering my original post. I have a K3 that no
> longer puts out 100 watts on 17 meters but does on all other bands. I
> was told this was a software issue by Tech Support. I would like
> confirmation FROM WAYNE that this is the case, and when he may have time
> to address it. If not, I would like to know why I was told this.
>
> So again, as much as I appreciate all of you trying to help with these
> questions, I would much prefer that Wayne address them personally.
> Thank you,
>
> --
> Michael
> N6MQL
>
>
>
> ------------------------------
>
> Message: 24
> Date: Sun, 22 May 2016 12:32:46 -0700
> From: Fred Jensen <k6dgw at foothill.net>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 Equalizer comment
> Message-ID: <ae9b8758-9fad-4f62-aaa3-79f21a506719 at foothill.net>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> One of the first things I noticed after getting the P3 and poking around
> the phone bands was how frequently a station's audio was concentrated
> right next to the suppressed carrier.
>
> K9YC helped me set my TX EQ, and the goal was to cut the lows [next to
> the carrier frequency] which consume a lot of the RF power and
> contribute little if anything to intelligibility. With a 5 or 6 KHz
> span, the display is very striking and signals with a desirable spectrum
> seem to be a bit rare.
>
> I don't frequent SSB very often, but when I do, usually in an NAQP or
> Sweepstakes, I regularly get unsolicited "Great audio" comments with
> Jim's settings.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the Cal QSO Party 1-2 Oct 2016
> - www.cqp.org
>
> On 5/21/2016 9:33 PM, Richard Fjeld wrote:
>> By looking at how his signal filled out the voice band in the waterfall,
>> and also the pattern of it on the display. It is a crude test using a
>> person's voice. Audio reports were the final test. He wasn't able to
>> adjust it by monitoring his own voice.
>>
>> It would be better if the transmitting station had something like an AF
>> generator audibly coupled to the microphone to do a freq run within the
>> voice band at a constant audio level.
>>
>> Dick, n0ce
>>
>> On 5/21/2016 9:01 PM, Jim Brown wrote:
>>> On Sat,5/21/2016 7:54 AM, Richard Fjeld wrote:
>>>> I was asked to help a ham get the transmit audio on his new import
>>>> equalized. What an experience!
>>>
>>> How did you use the P3 to do this?
>>>
>>> 73, Jim K9YC
>
>
>
> ------------------------------
>
> Message: 25
> Date: Sun, 22 May 2016 13:04:13 -0700
> From: "Ron D'Eau Claire" <ron at cobi.biz>
> To: "'Ken G Kopp'" <kengkopp at gmail.com>, "'Nr4c'"
> <nr4c at widomaker.com>, <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <005101d1b465$1d25ad00$57710700$@biz>
> Content-Type: text/plain; charset="us-ascii"
>
> Actually it is a good measurement when the KXPA100 and KX3 are set up
> 'normally' with power to the KX3 supplied via the KXPA100.
>
> What the KX3 will display is the voltage present at the input to the KXPA100
> (because that's where the KX3 is getting its power) less any voltage drop in
> the cable from the KXPA100 to the KX3.
>
> So if the voltage reads good at the KX3 with that setup, it's good at the
> KXPA100.
>
> 73, Ron AC7AC
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken G
> Kopp
> Sent: Sunday, May 22, 2016 10:53 AM
> To: Nr4c; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
>
> Bill,
>
> The front panel voltage display on a KX3 will -not- be accurate for the
> voltage at the input- power connector of the KXPA100.
> This voltage must be measured AT THE CONNECTOR on the rear of the KXPA100 to
> know what's being delivered to the PA.
>
> 73!
>
> K0PP
>
> On Sun, May 22, 2016 at 9:40 AM, Nr4c <nr4c at widomaker.com> wrote:
>
>> Or just use the Voltage reading displayed on the K3/KX3 front panel.
>> It's quite accurate.
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
>>
>>> On May 22, 2016, at 10:52 AM, David Orman <ormandj at corenode.com> wrote:
>>>
>>> Another question - how long/what gauge is the wire running to your
>> KXPA100?
>>> I wouldn't expect enough drop to pull your voltage down to a point
>>> at
>> which
>>> it cuts back power, but you never know. Check your KX3 for the
>>> source voltage when transmitting, that'll tell you if you're
>>> dropping below the threshold for power reduction. For example, 16
>>> gauge copper will drop
>> about
>>> 1.2 volts on a 10 foot run @ 15A current draw.
>>>
>>>> On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:
>>>>
>>>> Wayne,
>>>>
>>>> 2 things... First I mentioned to David S in the service department
>>>> that the K3 is no longer transmitting more than 94 watts out on 17
>>>> meters regardless of the SWR/ impedance. David said that this was a
>>>> known issue due to software and that it was being worked on.
>>>> However I haven't seen anything about this issue so I'm wondering
>>>> if this is true and if so has there been any updates to fix it.
>>>> Secondly, I'm noticing that my KXPA100 can not produce more that 80
>> watts
>>>> on most bands and 60 on others when I don't supply it with as much
>>>> as
>> 15v
>>>> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
>>>> procedure. Why is it that a "mobile" amp that would normally be
>>>> powered with 12v DC from a car battery not be able to provide the
>>>> power output
>> that
>>>> it is sold as (100 watts)?. Has there been some kind of revisions
>>>> to the first run boards that I should be exchanging them with?
>>>>
>>>> Thank you for your answers 73
>>>>
>>>> Mike
>>>> N6MQL
>>>> ______________________________________________________________
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>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Elecraft at mailman.qth.net
>>>>
>>>> This list hosted by: http://www.qsl.net Please help support this
>>>> email list: http://www.qsl.net/donate.html Message delivered to
>>>> ormandj at corenode.com
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>>>
>>> This list hosted by: http://www.qsl.net Please help support this
>>> email list: http://www.qsl.net/donate.html Message delivered to
>>> nr4c at widomaker.com
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net Please help support this email
>> list: http://www.qsl.net/donate.html Message delivered to
>> kengkopp at gmail.com
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html Message
> delivered to ron at elecraft.com
>
>
>
> ------------------------------
>
> Message: 26
> Date: Sun, 22 May 2016 16:09:07 -0500
> From: Kevin Stover <kevin.stover at mediacombb.net>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <2fae177f-8241-9645-3897-525be74ae69e at mediacombb.net>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> You do know what's going on this weekend right?
> I'm sure once he is back from Dayton he will give your questions all of
> they attention they deserve.
> What sort of watt meter are we measuring the output with?
>
> On 5/22/2016 1:46 PM, N6MQL wrote:
>> Although I appreciate all of your answers I specifically asked these
>> questions of Wayne because I was making a point to let him know of my
>> disapproval of the fact that the KXPA100 amp is incapable of running a
>> full 100 watts on a standard 12v battery. Furthermore I was trying to
>> get an explanation from the head designer as to why my amp that has a
>> 30amp power supply at 15v (read on the KX3) or 15.4v at the input is
>> unable to transmit at a full 100 watts on all bands. Yes, I have the
>> supplied cable with fuses attached, it's only 3 feet long, and the
>> transmit vs' receive voltage is less than a volt difference. So all
>> of those bases have been covered. As noted I have also completed the
>> KX3 power configuration, and the KX3 to KPA matching alignment
>> procedure...
>> I was alluded to the idea that there were a second revision of boards
>> that came out for the KXPA100 after the early models were shipped. I
>> have also heard that those boards help increase the output power.
>> Therefore I was asking WAYNE if this were the case, and perhaps having
>> them would help this situation. As for the 12v not running the amp,
>> this IS an issue because at field day we have 150 Ah batteries that
>> run 12 volts, and it would be nice to have my 100 watt amp run a full
>> 100 watts. Again, this was designed as a portable amp. I would expect
>> that at 12v we should be able to get the full rating out of it.
>>
>> On another note, what may have also gotten lost due to all those
>> trying to be helpful, but cluttering my original post. I have a K3
>> that no longer puts out 100 watts on 17 meters but does on all other
>> bands. I was told this was a software issue by Tech Support. I would
>> like confirmation FROM WAYNE that this is the case, and when he may
>> have time to address it. If not, I would like to know why I was told
>> this.
>>
>> So again, as much as I appreciate all of you trying to help with these
>> questions, I would much prefer that Wayne address them personally.
>> Thank you,
>>
>
>
> --
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
>
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>
> ------------------------------
>
> Message: 27
> Date: Sun, 22 May 2016 14:46:00 -0700
> From: Jim Brown <jim at audiosystemsgroup.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 and KX3 questions for Wayne
> Message-ID: <57422898.9050902 at audiosystemsgroup.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> On Sun,5/22/2016 11:46 AM, N6MQL wrote:
>> Although I appreciate all of your answers I specifically asked these
>> questions of Wayne because I was making a point to let him know of my
>> disapproval of the fact that the KXPA100 amp is incapable of running a
>> full 100 watts on a standard 12v battery.
>
> Michael,
>
> A careful reading of the online data sheet for the KXPA100 is
> instructive here.
>
> http://www.elecraft.com/KXPA100/kxpa100.htm
>
> The first line says "100 watts at 13.8 V, 1.8 to 29.7 MHz and 80 watts
> 50-54 MHz PEP CW/SSB/DATA; ? 1 dB"
>
> Two points: First, the amplifier is rated for 13.8V, NOT 12V. Second,
> the rating is +/1 dB, which is +/- 20% power. Thus, 80W on the HF bands
> is within spec for 13.8V at the amplifier terminals.
>
> The second line says "13.8 VDC powered; 20 A typical current drain (11 V
> with lower output. 15 V max)"
>
> This clearly means that the unit is designed and rated for 13.8VDC, can
> be operated from 11V to 15VDC, and will have reduced output at lower
> supply voltages.
>
> Obviously, Ohm's Law dictates that resistance of the DC supply
> conductors will reduce power supply voltage at the amplifier terminals,
> so while we may have 12V or 13.8V at our battery terminals, the voltage
> at the end of 6-12 ft of cable will be a bit lower with a 20A load. For
> example, the drop in 6 ft of #10 is 0.24v; for #12, it's 0.38V, and for
> #14, it's 0.6V.
>
> As others have noted, the operating voltage in so-called 12V DC power
> systems using lead-acid batteries is not 12V, but rather 13.8V. If you
> buy an AC power supply for ham gear, it will likely leave the factory
> with its voltage regulator set for 13.8V. Open the manual or the spec
> sheet for nearly all ham gear and you will find the supply voltage
> specified as 13.8VDC.
>
> 73, Jim K9YC
>
>
> ------------------------------
>
> Subject: Digest Footer
>
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> ------------------------------
>
> End of Elecraft Digest, Vol 145, Issue 27
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