I wouldn't go over 13.8 volts, it's not worth risking other gear.
tom WA6IVG

On Mon, Nov 02, 2015 at 07:05:54AM -0500, Tom Behler wrote:
> Yeah, I hear you, Tom.
> 
> That's why I'm hoping I can solve it by adjusting the voltage a bit on the
> RS35, or by switching out power supplies altogether.
> 
> Tom 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 10:50 PM
> To: [log in to unmask]
> Subject: Re: Interesting TMV71A Issue
> 
> If all else checks out, I'd suspect the pig tail. Bloody hard to prove
> unless you can make arrangements to test voltage inside the rig.
> 
> Tom WA6IVG
> 
> On Sun, Nov 01, 2015 at 10:02:39PM -0500, Tom Behler wrote:
> > The TMV71A has a pig-tail connector, into which the DC power cord is 
> > inserted.
> > 
> > Tom 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 9:45 PM
> > To: [log in to unmask]
> > Subject: Re: Interesting TMV71A Issue
> > 
> > I kind of doubt it's the astron a35, although I've seen them fail to 
> > hold voltage up under moderate loads, the H.F. rig sort of proves the 
> > supply can hack the draw.
> > 
> > Hard as it may be to find, I suspect the cable and/or connectors to 
> > the tmv71Does the tmv have a pig tail for the power connector or is 
> > the connector mounted rite on the chasis?
> > 
> > Tom WA6IVG
> > 
> > On Sun, Nov 01, 2015 at 07:01:14PM -0600, howard kaufman wrote:
> > > Let me know if you find a solution to this, I have the same problem.
> > > SWR is 1/1, the supply is a 35 amp oldstyle astron.
> > > I thought maybe the coax was interfering with the power supply on 
> > > high power.
> > > I was going to move the supply to under the radio desk to see if 
> > > that fixed the problem.  Then I got smarter.  I moved the coax and 
> > > left the heavy supply where it was.
> > > The 2 meter problem cleared up, but I still have the problem on 440.
> > > I have wrapped up the dc cables in big toroids, no help.
> > > I have a switching supply, but it puts out a big signal on 540 khz, 
> > > which is a station that I listen to a lot.
> > > 
> > > 
> > > -----Original Message-----
> > > From: For blind ham radio operators 
> > > [mailto:[log in to unmask]]
> > > On Behalf Of Tom Behler
> > > Sent: Sunday, November 01, 2015 5:18 PM
> > > To: [log in to unmask]
> > > Subject: Interesting TMV71A Issue
> > > 
> > > 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
> > > 
> > >