Rick,

First  question:  Are you powering the RB-704  with some external  dc power? 
Most Kenwoods draw  power from the rig's din jack, but the 430 is one that 
doesn't.

Also double check all your connections between rig, buffer, and amp.  Other 
simple stuff like be sure  band switch on amp matches  band of operation and 
that  all other controls are set properly before  you start transmitting.

Good luck, Steve KW3A


----- Original Message ----- 
From: "Rick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 01, 2009 12:00 PM
Subject: Heathkit SB-220 problem.


> Hi list.
> I finally got the ARB-704 and PNP-7D from Ameritron to hook my SB-220 to 
> the
> Kenwood TS-430.
> It doesn't increase my Transmit power., and load and tune doesn't do
> anything.
> I can hear the relay working.
> When I turn the amp on my receive drops down to about half.
> When I turn it off I hear a click like the relay is fully opening.
> Any suggestions on what the problem might be, and how to fix it?
> Thanks in advance, and 73.
>