From teknoskillz at comcast.net  Sun Jun 14 22:39:38 2020
From: teknoskillz at comcast.net (Steve H)
Date: Sun, 14 Jun 2020 22:39:38 -0400
Subject: [Kenwood] Kenwood TS-830S no tune on 160m
Message-ID: <7FF97FD0D6314936AA58C88085D2721C@HAL2000>

Did alot of work on this one and almost all ok except on 160m when you try 
to tune up in CW , the plate dip is hard to narrow down, as it seems to 
creep up to about 270mA gradually and the 6146 tubes glow orange brightly on 
the plates which is not good.

It does this into a dummy load too as well as the antenna. Tried another set 
of known good tubes, and had to set the idle current back to 50Ma as it went 
down to 10mA with the swap, but same thing.

I can modulate in USB and LSB ok, and Im putting out some power enough to 
make contacts not too far away. Someone said theres some oscillation taking 
place somewhere.

I read tube neutralization or lack thereof can cause this oscillaiton, but 
its only on 160m which is odd. Anyone ever hear of this before?

Steve
KA2PTE



From acme9283 at gmail.com  Fri Jun 19 07:27:29 2020
From: acme9283 at gmail.com (=?UTF-8?B?QW5kcsOpIEM=?=)
Date: Fri, 19 Jun 2020 07:27:29 -0400
Subject: [Kenwood] ts-450s low audio
Message-ID: <CAGC0R9ym-spd1L7t+jAkzhKqJZ=+-6My8Qx4viyHwCHDn1Zhwg@mail.gmail.com>

Hello,
          I did suffer from a No audio problem, so I did check C 104.  It
didn't seem to leak so I decide to replace it anyway, but I had only a
470uF 25V Cap on hand and L12 was burn so I replace it with a 1uHbut not
exactly like the one on board. Since I had the radio open, I also decide to
remove D27 for the MARS mods.  The audio seems lower than before at first,
but now even with the volume at max, I barely hear anything. What else
should I check ?

Thank's VE2WNF Andre

<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Garanti
sans virus. www.avg.com
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

From teknoskillz at comcast.net  Sat Jun 20 10:42:21 2020
From: teknoskillz at comcast.net (Steve H)
Date: Sat, 20 Jun 2020 10:42:21 -0400
Subject: [Kenwood] Kenwood TS-830S no tune on 160m
In-Reply-To: <7FF97FD0D6314936AA58C88085D2721C@HAL2000>
References: <7FF97FD0D6314936AA58C88085D2721C@HAL2000>
Message-ID: <440C48EB4C404797BF582791EDFD50CC@HAL2000>

Worked on this some more. Did the neutralization procedure as per K4EAA's 
site faq. Was able to cancel out 60mV
pp excess RF, however problem is still there.

Have tried another set of known good tubes that work n a 530S Kenwood ok, so 
its not the tubes. Also swapped RF driver tubes
so its not that.

I was told to check the negative bias on the finals, which I probably will 
do later today.

Went back into the final cage and unhooked the caps I put in and put them on 
the tester. 1 reads sort of low, but its in spec
at the 20% tolderance the manufacturer specifies. I did save all the old 
original caps, so I may try putting them in one at a time
in case I got a bad new cap, which is a possibility these days.

It seems like the plate current is ok when you first transmit a carrier, the 
current is momentarily in the range it ought to be, then
it jumps to almost 200mA, and will increase, sort of like somethings 
breaking down with the voltage applied. I guess I cant rule out a
dirty contact on the band switch, but I have cleaned it several times with 
contact cleaner. The spots near the back in the final cage are harder to
treat tho.



KA2PTE


----- Original Message ----- 
From: "Steve H" <teknoskillz at comcast.net>
To: <kenwood at mailman.qth.net>
Sent: Sunday, June 14, 2020 10:39 PM
Subject: [Kenwood] Kenwood TS-830S no tune on 160m


> Did alot of work on this one and almost all ok except on 160m when you try 
> to tune up in CW , the plate dip is hard to narrow down, as it seems to 
> creep up to about 270mA gradually and the 6146 tubes glow orange brightly 
> on the plates which is not good.
>
> It does this into a dummy load too as well as the antenna. Tried another 
> set of known good tubes, and had to set the idle current back to 50Ma as 
> it went down to 10mA with the swap, but same thing.
>
> I can modulate in USB and LSB ok, and Im putting out some power enough to 
> make contacts not too far away. Someone said theres some oscillation 
> taking place somewhere.
>
> I read tube neutralization or lack thereof can cause this oscillaiton, but 
> its only on 160m which is odd. Anyone ever hear of this before?
>
> Steve
> KA2PTE
>
>
> ______________________________________________________________
> Kenwood mailing list
> Home: http://mailman.qth.net/mailman/listinfo/kenwood
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Kenwood at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 


From teknoskillz at comcast.net  Sat Jun 20 13:41:55 2020
From: teknoskillz at comcast.net (Steve H)
Date: Sat, 20 Jun 2020 13:41:55 -0400
Subject: [Kenwood] Kenwood TS-830S no tune on 160m
In-Reply-To: <440C48EB4C404797BF582791EDFD50CC@HAL2000>
References: <7FF97FD0D6314936AA58C88085D2721C@HAL2000>
	<440C48EB4C404797BF582791EDFD50CC@HAL2000>
Message-ID: <7D13709B1EB94456B2AFA2385787BE48@HAL2000>

Issue resolved.

The back part of the band switch shorts those padder caps that form 412pF 
when on 160m
so measured the contact from them to the other contacts and I
saw 2.2 ohms.

The lug was a little loose compared to others and I remember seeing one of 
the sites for hybrid repair say you can solder the lug to the rivet holding 
it in, so thats what I did. Also sprayed the contacts better while I was in 
there. Now have about 0.3 ohms which seems alot better.

Warmed up on the bench and the 50mA idle current is
still there, ALC drive peaked and when I go into CW, I can now dip the plate 
like I was on the 530S, so issue resolved! In there now are the original 
412pF combo. Figured may as well try that , but I guess the new caps are 
likely ok as the loose connection would react the way I was seeing with the 
initial dip, then the connection resistance increase would effectively 
remove the caps and it would be like tuning on 80m more or less.

Thanks to those who emailed me off list with targeting this area.

KA2PTE 


From kenw8ek at gmail.com  Mon Jun 22 11:22:51 2020
From: kenw8ek at gmail.com (Ken, W8EK)
Date: Mon, 22 Jun 2020 11:22:51 -0400
Subject: [Kenwood] Mics, Cables, PP, and more FS
Message-ID: <4ce912bf-a540-c8a2-9c12-d97f184af3b9@gmail.com>


Microphones, Mic Cables, Phone Patch, cable for
switching linear amp, Original Boxes, and more
For Sale:

.

Kenwood MC-85 Desk Microphone:

The Kenwood MC-85 is a unidirectional electret
condenser desk mic, with preamp. It features
UP-DOWN tuning (on compatible Kenwood
transceivers) and has a level meter.

The MC-85 can handle up to three inputs with
additional cables. It comes with one cable that
is terminated in a round 8 pin connector, wired
for Kenwood.

This mic requires power that is derived from
some Kenwood models.
The 700 ohm mic has a 300 to 7000 Hz response.

This one works OK, sounds fine, and looks OK.
Buy it with paper work for only $90.

.

Hand Microphone with round 8 pin plug:

This hand mic works great on most Kenwood
rigs with the round 8 pin connector, such as
the TS-440, TM-241, TM-2530, TW-4000, and
others, including Alinco and ADI. It says
"Electret Condenser Mic" on the back.

Basically, this mic functions like an MC-43, with
a couple more features. It has the mic and PTT
switch; it also has up/down switches on the top.
There are four "extra" buttons labeled Call,
VFO, MR, and PF. What these four buttons do
depends on the rig. There is also a "Lock"
switch on the back.

Regardless if you use the four extra buttons or
not, you still have a mic that works like an MC-43.

This mic works fine, and looks like new.
It probably came with a rig, and was immediately
put in the drawer, and never used.

$30

.

Microphone Cables for Heil and TenTec Mics:

These cables can be used with the TenTec Regal
707, or with many of the Heil microphones
(all of them that use an XLR-4 connector,
which is most of them), and likely others.

XLR-4 to round 8 pin connector wired for
Kenwood, about 8 feet long. $25

XLR-4 to round 8 pin connector wired for
TenTec/Yaesu, about 8 feet long. $25

.

Kenwood PC-1 Phone Patch For Sale:

The Kenwood PC-1 phone patch provides a
connection between the transceiver and a
telephone line. It is designed to provide
high isolation between receiver input and
transmitter output.

Impedance levels (nominal):
Line 600 ohm
Receiver Input 8 ohms
Speaker Output 8 ohms
Microphone 50k ohms

Microphone input and output is 4 pin.
6 x 2.25 x 5.75 inches.

This one works fine and looks fine.

Only $25.

.

Linear Amp Switching Cables for Kenwood Rigs:

This cable goes from a Kenwood transceiver to a linear
amplifier to switch the amp from transmit to receive.

One end has a DIN connector, as is used with most Kenwood
rigs. The other end has an RCA phono plug, as used by most
linear amplifiers.

Before using this cable, please check the switching
capabilities of your transceiver, and the requirements
of your amplifier.

Cable for switching the T/R relay Only $15.

Cable for switching T/R relay with additional
ALC cable  $20

.

Kenwood Charger for TH-225 HT; $10

.
Kenwood SMC-30 Speaker Microphone
Excellent condition. $20

.

Kenwood SC-8 T soft case
For Kenwood TH-21, TH-31, TH-41 series HTs.
Like new condition. $10

.

Original Empty Boxes For Sale:

All are original boxes that also include the inserts
that came with them when new.
Some may even have plastic bags.

Kenwood FM-430 FM Unit $3
Kenwood MB-4 Mounting Brack $3
Kenwood MC-30 Mic $4
Kenwood MC-80 Desk Mic $8
Kenwood PB-2 Battery $3
Kenwood PB-21 Battery $3
Kenwood PB-24 Battery Pack $3
Kenwood SMC-25 Spkr Mic $3
Kenwood TH-22, 2 m HT $12
Kenwood TM-221, 2 m Xcvr $10
Kenwood TU-79 PL unit $3
Kenwood TS-711 VHF Xcvr $15*
Kenwood UBZ-LF14 FM Xcvr $5
Kenwood VS-1 Voice Synth $3

* indicates no insert

.

I also have many other accessories available such as many
different types of microphones, HTs, VHF and UHF rigs, HF
and VHF/UHF antennas, connectors, miscellaneous accessories,
etc.
Just too many to list here. Please e-mail your requests.

.
Prices do not include shipping from Florida.

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone (352) 732-8400



.



.

From teknoskillz at comcast.net  Tue Jun 23 09:37:30 2020
From: teknoskillz at comcast.net (Steve H)
Date: Tue, 23 Jun 2020 09:37:30 -0400
Subject: [Kenwood] Kenwood TS-830S no tune on 160m
In-Reply-To: <7D13709B1EB94456B2AFA2385787BE48@HAL2000>
References: <7FF97FD0D6314936AA58C88085D2721C@HAL2000><440C48EB4C404797BF582791EDFD50CC@HAL2000>
	<7D13709B1EB94456B2AFA2385787BE48@HAL2000>
Message-ID: <E8622266590445568BF3A09FB244200F@HAL2000>

Still working pretty good here except last night on 160m I noticed the plate 
current was about 100mA
no matter what I did with the plate tuning knob. Started a qso with my pal, 
and on my 1st long transmission
about 3 minutes in the 6a fuse blew.

I put a new one in and noticed I had my keyer plugged in to the back of the 
riggs key jack. I took that out,
and was able to tune with the usual 150mA plate current I always see. Made 
several long transmissions, no problem.

So was the fact I had the key in the jack causing the plate current to be 
limited? I know when you tune in cw with a key
in there, you need to hit the send button on, which I believe I did, but I 
guess I was not really tuning up without keying the keyer.
So I was transmitting under the impression I had tuned for max, but 
meanwhile since I didnt check the plate current with it keyed,
and I made a ssb transmission, I was probably drawing too much plate 
current.

I guess an "operator error" in my excitement there.

My pal also noticed my fan was getting pretty hot and said the fan in these 
hybrids is quiet, but works very slowly and
runs on a 100v winding on the power transformer and he said I may get better 
results moving it right to the 115V AC
input wiring which I think I will try one day as it will probably make the 
fan work better...though perhaps it may become more noisier.

KA2PTE 


From af5cc2 at gmail.com  Sat Jun 27 12:46:00 2020
From: af5cc2 at gmail.com (John Geiger)
Date: Sat, 27 Jun 2020 11:46:00 -0500
Subject: [Kenwood] ACRP-590/AHRP-590 software questions
Message-ID: <CAHC1P2-gxRRuVu_GQyvKGVFYpOE7BFWSV=4ghA4OY6ADRo1spQ@mail.gmail.com>

 Is anyone on the list using the ACRP/AHRP-590 software for remote control
of their TS590S?  If so, does this setup seem to be pretty secure from
potential hacking into your computer system?

Also, is it possible to use this system to run FT8 remotely, where you
would have the WSJT-X software installed on the remote computer (the one
with the ACRP-590) software and run it from that computer as that is the
one in front of you when you are doing remote operations?

I am looking into this system and am wondering about people's experiences
with it and how well it works.

Thanks,

73 John AF5CC

From n2icarrl at gmail.com  Sat Jun 27 12:51:32 2020
From: n2icarrl at gmail.com (Steve London)
Date: Sat, 27 Jun 2020 10:51:32 -0600
Subject: [Kenwood] ACRP-590/AHRP-590 software questions
In-Reply-To: <CAHC1P2-gxRRuVu_GQyvKGVFYpOE7BFWSV=4ghA4OY6ADRo1spQ@mail.gmail.com>
References: <CAHC1P2-gxRRuVu_GQyvKGVFYpOE7BFWSV=4ghA4OY6ADRo1spQ@mail.gmail.com>
Message-ID: <acab34ad-e0fc-12ea-9545-e4e6039ecf7b@arrl.net>


On 06/27/2020 10:46 AM, John Geiger wrote:

> 
> Also, is it possible to use this system to run FT8 remotely, where you
> would have the WSJT-X software installed on the remote computer (the one
> with the ACRP-590) software and run it from that computer as that is the
> one in front of you when you are doing remote operations?

You will need a COM port splitter to do this. However, with FT8, you don't need 
much control of the radio from ARCP-590 once it is set up for FT8.

> 
> I am looking into this system and am wondering about people's experiences
> with it and how well it works.

I recently did this for 2 weeks. Set up the radio with ARCP, then disconnect 
from the radio, then connect with WSJT-X.

73,
Steve, N2IC