[TowerTalk] Tuner SWR won't stay down

[Jim Thomson]

Date: Thu, 1 Jan 2015 18:56:58 -0600
From: "Bill Aycock" <billaycock at mediacombb.net>
To: "Charles Farr" <cefarr at hughes.net>, <towertalk at contesting.com>
Subject: Re: [TowerTalk] Tuner SWR won't stay down

I'm puzzled that no one has mentioned the FIRST and most helpful trouble 
shooting test-- substituting a dummy load for the antenna.
Bill—W4BSG

##  agreed !   We don’t even know what ant he is using.  Is it a yagi, or
an OCF dipole, or is it a dipole fed with open wire line, OR coax. 
What band or bandS  does it drift on. Do you have some kind of
defective balun at the feedpoint of the ant ?? 

##  Since it drifts, even with low power, you gotta real problem. 

##  Run ONE good coax, directly from the output of the tuner.... to a dummy load.
Don’t even mess with a wattmeter, or anything else between output of tuner 
and input of dummy load. 

##  Then try and.... match the dummy load..and do it on every band, IF it doesn’t
drift, your tuner is not the issue. 

##If it does still drift, the tuner is the problem. 

Jim  VE7RF