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From:
howard kaufman <[log in to unmask]>
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Date:
Mon, 2 Nov 2015 06:19:38 -0600
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Tom, what was the solution to your winamp problem?
I missed it.


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Tom Behler
Sent: Monday, November 02, 2015 6:08 AM
To: [log in to unmask]
Subject: Re: Interesting TMV71A Issue

I'll try that, Howard, and get back to you.

It's easy enough to do with the rigrunner, but remember, the problem did
already go away when I checked and cleaned all DC power connections.

Still, my output power is down a bit, which to me still indicates
slightly-lower voltage than the 71A likes to see.

Tom Behler: KB8TYJ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of howard kaufman
Sent: Sunday, November 01, 2015 11:12 PM
To: [log in to unmask]
Subject: Re: Interesting TMV71A Issue

Tom, if you disconnect the ts-590, does the problem go away?
I can test that here, but everything is bolted to the supply, so it would
take a rench here.


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Tom Behler
Sent: Sunday, November 01, 2015 9:02 PM
To: [log in to unmask]
Subject: Re: Interesting TMV71A Issue

Tom:

See my most recent posts.

After doing a considerable amount of troubleshooting, I don't think it's RF
getting into things.

I believe it's a voltage issue with my RS35 supply.

Will try another supply when I get the chance, so that I can confirm or deny
that theory.

Tpom Behler: KB8TYJ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Tom Fowle
Sent: Sunday, November 01, 2015 9:35 PM
To: [log in to unmask]
Subject: Re: Interesting TMV71A Issue

Tom,
do you have, and have you tried a dummy load? particularly a well shielded
load. It sounds like R.F. getting into the rig where it don't belong.

good luck
tom Fowle WA6IVG

On Sun, Nov 01, 2015 at 06:17:59PM -0500, Tom Behler wrote:
> Hi, everyone.
> 
>  
> 
> Well, last night, I got rid of the gremlin that was causing issues 
> with my ability to play selected audio files using Winamp, but now, 
> another gremlin has appeared in my shack.
> 
>  
> 
> This time, I'm experiencing a very strange problem with my Kenwood TMV71A.
> 
>  
> 
> The problem occurs mainly when trying to transmit with high power on 
> 440, but it happens occasionally when trying to do so on 2 meters as well.
> Basically, when I transmit with high power, especially on 440, the rig 
> shuts off for a split second, but then comes back on.  It's almost as 
> if the rig is not happy transmitting on high power for some reason, 
> again, especially on 440.
> 
>  
> 
> I discovered this issue late this afternoon, as I was doing my usual 
> monthly tests of equipment, antennas, etc., at least as best as I can 
> from here in the shack at the home QTH.
> 
>  
> 
> In trying to diagnose the problem, I have done the following things so
far:
> 
>  
> 
> 1.  My first thought was that something has gone wrong with my outdoor 
> Diamond X200 VHF/UHF antenna, which is fed with RG9913 coax and is on 
> the roof of my house at a height of approximately 35 feet.  I took 
> SWR, as well as forward and reflected power readings using my TW2.
> Both on 2 meters and 440, adjusting the meter for each gand as I went.  
> my SWR's on each gand are between 1.2 to 1 and 1.3 to 1.  On medium 
> power, my forward power on each band is between 9 and 10 watts, and my 
> reflected power is either at 0 watts on 2 meters, or point 2 watts on 440.
> 
>  
> 
> 2.  I then tried switching jumpers between my TW2, and the Diamond
> X200 connection on my MFJ window feed through panel.  Again, no change.
> Admittedly, I haven't swapped all jumpers out, but at least the 
> initial jumper swap didn't change the results.
> 
>  
> 
> 3.  I then did a V F O re-set on the TMV71A, with again, no change in 
> my results.  I'm a bit reluctant to do the full re-set, but may do so 
> as a last resort, since I have the TMV71A programming cable, and also 
> have all memories and menu settings saved in a data file for the rig.
> 
>  
> 
> One other thing I might try is to see if this happens with the TMV71A 
> that I typically use when camping out at the RV.  It is here in my 
> shack in a box for the winter.
> 
>  
> 
> Before I go too crazy with all this, though, I'd like to know whether 
> anyone else has experienced this issue, and if there are other ideas 
> out there that I might want to try.
> 
>  
> 
> Thanks as always for the help.
> 
>  
> 
> Tom Behler: KB8TYJ
> 
>  

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