Hey Steve!

You said it!  This high power stuff is gnarly!  I will try ferrite if it
persists.  The antenna is about 40' from the shack.

following is information about my grounding system.  About 10' from the
shack, I have two copper 8' ground rods sunk into the ground.  All 120V AC
into the shack is grounded to one of them.  Connected to the other ground
rod is a terminal; attached to which are about five separate 14 gauge copper
wires each of which goes to equipment in the shack (rig, tuner, PC, amp,
etc.).  then, both ground rods are connected with a 10 gauge wire.  For the
power supply which is shutting down, I just attached yet another ground
wire, and I also wrapped its AC power cord in tin foil.  I have not yet
tested to see if it still shuts down with these new two grounding/shielding
improvements.


73,
Richard KK6MRH

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: Thursday, January 14, 2016 7:27 AM
To: [log in to unmask]
Subject: Re: How to Stop RFI from Shutting Down My TS-2000's Power Supply?

Richard,

Welcome  to the world of high power.   How do you have the radio 
grounded?   How close is the antenna to the operating position?

I would invest in some ferrites.  E-bay is a good source.     I would 
clamp the AC line to the power supply, and the  12 vdc line coming out. 
   Also clamp everything  connected to the radio/amp (coax, power, 
control cables, etc.).    The other school of thought is to only clamp 
things until you find the  one that is the problem.

If your antenna is 5 feet from your operating position, things may be more
problematic.  As Ron suggests, antenna/feedline/balun  may be the 
culprit.    Sometimes this stuff is hard to solve, glad you have help on 
site.


73, good luck, Steve KW3A

On 1/14/2016 9:48 AM, Richard B. McDonald wrote:
> Hi!
>
>
>
> In the process of setting up my Ameritron ALS-1306 amp with my Kenwood
> TS-2000 and an MFJ 998 tuner, sometimes RFI shuts down the TS-2000's power
> supply.  My Elmer is convinced it is RFI because 1) it seems only to
happen
> on 20M (so far, anyway) and 2) it only happens when we crank-up the 1306
> beyond ~200W.  The 1306 is on a totally different, dedicated power line:
> 240V.  The TS-2000's power supply is on the household's 120V.  The power
> supply for the TS-2000 is an Astrin SS-30
> <https://www.hamcity.com/store/pc/SS-30-p363.htm> .  So, what can I do to
> stop this?
>
>
>
> 73,
>
> Richard KK6MRH
>