Either the coax switch or the power connections are getting dirty.
----- Original Message ----- 
From: "Howard Kaufman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, August 15, 2012 8:29 PM
Subject: Re: Manual tuners


> Jim, when you get the low beep on the tuner it is out of the circuit.  the
> 480 will tune anything under 6/1.  Yes it is more lossy than the internal
> tuner.
> Now this is odd.
> at 28.5 mhz with a dummy load, I get 54 watts out with the internal tuner,
> and 62 watts out with the internal tuner bypassed.  The power level is set
> at 100 watts.
> On 1.805 I am getting 34 and 45 watts respectively.
>
> I am suspecting insertion loss from the coax switch, will check that out 
> and
> then start changing jumpers.
> Any other ideas?
> I have a 6 meter Motorola on the same power supply, turning it off didn't
> change a thing.