I fully agree with Jerry on this one. It should be a requirement for every
ham station to have some type of reliable antenna bridge and a dummy load.
Then use the bridge to adjust the antenna or the tuner and use the dummy
load to adjust the amp. Connect the amp to the tuner or antenna and you are
on the air and no QRM generated.
Day after day on the nets that I participate the "tuner uppers" jump on
frequency and twiddle and twiddle. Oh the auto notch takes care of the
heterodyne but it still sucks the AGC. The FCC considers this deliberate
QRM. Ask yourself, are you operating legally?
73
Bob, K4TAX
----- Original Message -----
From: "Dr Gerald N Johnson" <geraldj@storm.weather.net>
To: <tentec@contesting.com>
Sent: Sunday, September 30, 2007 6:51 PM
Subject: Re: [TenTec] Tuning Rigs
On Sun, 2007-09-30 at 16:39 -0400, Ron Zond wrote:
Hi
I usually tune my jap rig (Yaesu FT 100) with an aototuner;
the foldback saves the finals. My Omni V requires the
time-tested method of adjusting the manual tuner for lowest SWR,
raising the power and repeating (just asi the pi networks did on the old
tube rigs).
If the SWR is too high, the 960 shuts down.
On the Yaesu, I use CW to tune the rig; much quieter (and legal; see FCC
rules about
superfluous communications).
Ron
K3MIY
The BETTER way of tuning the antenna with a manual tuner is using an
antenna analyzer, RF noise bridge, or a "Tuner Tuner." MFJ calls their
tuner tuner a Match Maker. MFJ-212. That puts no discrete or strong
signal on the band. Tuning at a watt or two, which many automatic tuners
will do still puts out that watt, sometimes enough to be heard around
the world.
73, Jerry, K0CQ
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