[Elecraft] Elecraft Digest, Vol 248, Issue 6

Jack Brindle jackbrindle at me.com
Fri Dec 20 14:07:12 EST 2024 

Jean Claude;

You can do it yourself. The link is at the bottom of every list email:
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Help: http://mailman.qth.net/mmfaq.htm

73 de La Louisianne
Jack, W6FB



> On Dec 20, 2024, at 11:28 AM, f6eju via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Thanks to unsubscribe me.
> Regards
> 
> Jean claude Buffet f6eju
> F6eju at orange.fr
> 
> 
> 
> -----Message d'origine-----
> De : elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> De
> la part de elecraft-request at mailman.qth.net
> Envoyé : 20 décembre 2024 18:00
> À : elecraft at mailman.qth.net
> Objet : Elecraft Digest, Vol 248, Issue 6
> 
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> When replying, please edit your Subject line so it is more specific than
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> 
> Today's Topics:
> 
>   1. Re: Airplane instruments issue (Mike Short)
>   2. KPA500 Issue? (Paul Ecker)
>   3. Re: KPA500 Issue? (Rick NK7I)
>   4. Re: KPA500 Issue? (Paul Ecker)
>   5. Re: KPA500 Issue? (Jack Brindle)
>   6. Re: KPA500 Issue? (Rick NK7I)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 19 Dec 2024 13:16:05 -0600
> From: Mike Short <ai4ns.mike at gmail.com>
> To: Elecraft <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] Airplane instruments issue
> Message-ID:
> 	<CAL7rsnE+TW5oXb_BZxFvzGcT_--5Usd6aS1aXGYmMU0kyO=cZg at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Need a recommendation for a USB oscilloscope still. Want to monitor the
> power bus while the plane is flying to see if there are spikes or noise that
> may be causing the monitor to go haywire.
> 
> On Sun, Nov 17, 2024 at 10:13 Mike Short <ai4ns.mike at gmail.com> wrote:
> 
>> My son has a Piper Cherokee and recently installed a Electronics 
>> international cgr30p monitor system. It worked fine for several months 
>> and has now started randomly reporting impossible results for engine 
>> temperature, fuel flow rates considerably higher than pump can 
>> deliver, etc.
>> 
>> The wiring harness inside and the monitor have been replaced or 
>> verified by the manufacturer. He has a breakout box that allows 
>> shutting off individual data lines. No provision to monitor lines though.
>> 
>> would like to monitor the DC bus and see if there is an AC component 
>> being injected somehow. I would like recommendations for a USB 
>> oscilloscope that would be suitable. I also have a RF explorer 50khz 
>> to 960MHZ that I could use to monitor radiated noise.
>> 
>> Can anyone help me with this?
>> 
>> Mike
>> AI4NS
>> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Thu, 19 Dec 2024 15:18:06 -0500
> From: Paul Ecker <eckerpw at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] KPA500 Issue?
> Message-ID:
> 	<CAJDGaPNM6b2qzZh6wAKWSg-BnhJi5Fp4P=qk7BaufD3HXZMOCg at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Jack & Bill
> Problem resolved sorta of.
> Solution: Discovered my own forgetfulness or senior brainfart !!
> I had forgotten that I had antenna 2 connected directly to the K4D for
> Diversity purposes, and not connected to the KAT500.
> Which brings up probably a dumb question. When I transmit on this antenna
> connected to Ant 2 on the K4, I see power out on the K4 meter, isn't it
> still traveling the same path thru the KPA-KAT.  Why am I seeing zero on the
> KPA power meter?
> 
> 73 Paul w2eck
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 19 Dec 2024 12:44:22 -0800
> From: Rick NK7I <rick.nk7i at gmail.com>
> To: Paul Ecker <eckerpw at gmail.com>
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KPA500 Issue?
> Message-ID: <4F7923FF-50AD-4834-8277-316F071C8D5A at gmail.com>
> Content-Type: text/plain; charset=utf-8
> 
> If it?s not passing through the KPA, how would it read power?
> 
> 73,
> Rick nk7i
> 
>> On Dec 19, 2024, at 12:18?PM, Paul Ecker <eckerpw at gmail.com> wrote:
>> 
>> ?Jack & Bill
>> Problem resolved sorta of.
>> Solution: Discovered my own forgetfulness or senior brainfart !!
>> I had forgotten that I had antenna 2 connected directly to the K4D for 
>> Diversity purposes, and not connected to the KAT500.
>> Which brings up probably a dumb question. When I transmit on this 
>> antenna connected to Ant 2 on the K4, I see power out on the K4 meter, 
>> isn't it still traveling the same path thru the KPA-KAT.  Why am I 
>> seeing zero on the KPA power meter?
>> 
>> 73 Paul w2eck
>> ______________________________________________________________
>> 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 
>> rick.nk7i at gmail.com
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Thu, 19 Dec 2024 15:52:48 -0500
> From: Paul Ecker <eckerpw at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KPA500 Issue?
> Message-ID:
> 	<CAJDGaPMZV6CB-iP4sO0w+zHV6AEB=VgeBD8+Qo4h-c38fKYo9A at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Rick
> You are quite correct as I look at it again - as I said - not a good
> question So the  issue is closed - thanks for help gentlemen
> 
> 73 Paul w2eck
> 
> On Thu, Dec 19, 2024 at 3:44?PM Rick NK7I <rick.nk7i at gmail.com> wrote:
> 
>> If it?s not passing through the KPA, how would it read power?
>> 
>> 73,
>> Rick nk7i
>> 
>>> On Dec 19, 2024, at 12:18?PM, Paul Ecker <eckerpw at gmail.com> wrote:
>>> 
>>> ?Jack & Bill
>>> Problem resolved sorta of.
>>> Solution: Discovered my own forgetfulness or senior brainfart !!
>>> I had forgotten that I had antenna 2 connected directly to the K4D 
>>> for Diversity purposes, and not connected to the KAT500.
>>> Which brings up probably a dumb question. When I transmit on this 
>>> antenna connected to Ant 2 on the K4, I see power out on the K4 
>>> meter, isn't it still traveling the same path thru the KPA-KAT.  Why 
>>> am I seeing zero on the KPA power meter?
>>> 
>>> 73 Paul w2eck
>>> ______________________________________________________________
>>> 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 
>>> rick.nk7i at gmail.com
>> 
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Thu, 19 Dec 2024 14:56:26 -0600
> From: Jack Brindle <jackbrindle at me.com>
> To: Paul Ecker <eckerpw at gmail.com>
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KPA500 Issue?
> Message-ID: <D2A19D4B-5DB2-4AD3-847A-A660C7F3F4F3 at me.com>
> Content-Type: text/plain;	charset=utf-8
> 
> I agree with Rick on this one. There are three antenna ports on the KAT500,
> and four (I believe) on the K4. Don?t confuse KAT500 Antenna 2 with K4
> Antenna 2, they are not the same port.
> Only one output from the K4 goes to the KPA500 and then to the KAT500. If
> the K4 has Antenna 2 selected, and the KPA is connected to Antenna 1, then
> the KPA will see no power in.
> With no power in, there will be no power out. But the antenna connected to
> K4 Antenna 2 will see power.
> 
> You might want to draw a diagram showing the station components (K4, KPA500
> and KAT500), add which control program handles each, then post it to remind
> you what will happen when you select various ports.
> 
> 73,
> Jack, W6FB
> 
> 
>> On Dec 19, 2024, at 2:18?PM, Paul Ecker <eckerpw at gmail.com> wrote:
>> 
>> Jack & Bill
>> Problem resolved sorta of.
>> Solution: Discovered my own forgetfulness or senior brainfart !!
>> I had forgotten that I had antenna 2 connected directly to the K4D for 
>> Diversity purposes, and not connected to the KAT500.
>> Which brings up probably a dumb question. When I transmit on this 
>> antenna connected to Ant 2 on the K4, I see power out on the K4 meter, 
>> isn't it still traveling the same path thru the KPA-KAT.  Why am I 
>> seeing zero on the KPA power meter?
>> 
>> 73 Paul w2eck
>> ______________________________________________________________
>> 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 
>> jackbrindle at me.com
> 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Thu, 19 Dec 2024 13:19:49 -0800
> From: Rick NK7I <rick.nk7i at gmail.com>
> To: Jack Brindle <jackbrindle at me.com>
> Cc: elecraft at mailman.qth.net, Paul Ecker <eckerpw at gmail.com>
> Subject: Re: [Elecraft] KPA500 Issue?
> Message-ID: <EF39B614-33A6-467B-9414-B3541EDFFE54 at gmail.com>
> Content-Type: text/plain; charset=utf-8
> 
> Because of random mental gas releases (brain farts); I try to simplify as
> much as I can.  In the heat of the DX/contest moment, small thing matter so
> make them simple.
> 
> My K4 antenna port 1 is relabeled ?KPA1500? and port 2 is ?Dummy? (the load,
> not the operator).
> 
> You may wish to do similar, using the tools that Elecraft designed into the
> K4.
> 
> 73,
> Rick nk7i
> 
>> On Dec 19, 2024, at 12:57?PM, Jack Brindle via Elecraft
> <elecraft at mailman.qth.net> wrote:
>> 
>> ?I agree with Rick on this one. There are three antenna ports on the
> KAT500, and four (I believe) on the K4. Don?t confuse KAT500 Antenna 2 with
> K4 Antenna 2, they are not the same port.
>> Only one output from the K4 goes to the KPA500 and then to the KAT500. If
> the K4 has Antenna 2 selected, and the KPA is connected to Antenna 1, then
> the KPA will see no power in.
>> With no power in, there will be no power out. But the antenna connected to
> K4 Antenna 2 will see power.
>> 
>> You might want to draw a diagram showing the station components (K4, 
>> KPA500 and KAT500), add which control program handles each, then post it
> to remind you what will happen when you select various ports.
>> 
>> 73,
>> Jack, W6FB
>> 
>> 
>>> On Dec 19, 2024, at 2:18?PM, Paul Ecker <eckerpw at gmail.com> wrote:
>>> 
>>> Jack & Bill
>>> Problem resolved sorta of.
>>> Solution: Discovered my own forgetfulness or senior brainfart !!
>>> I had forgotten that I had antenna 2 connected directly to the K4D 
>>> for Diversity purposes, and not connected to the KAT500.
>>> Which brings up probably a dumb question. When I transmit on this 
>>> antenna connected to Ant 2 on the K4, I see power out on the K4 
>>> meter, isn't it still traveling the same path thru the KPA-KAT.  Why 
>>> am I seeing zero on the KPA power meter?
>>> 
>>> 73 Paul w2eck
>>> ______________________________________________________________
>>> 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 
>>> jackbrindle at me.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 
>> rick.nk7i at gmail.com
> 
> 
> ------------------------------
> 
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> End of Elecraft Digest, Vol 248, Issue 6
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> 
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