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Re: [TenTec] Auto Tuners

To: tentec@contesting.com
Subject: Re: [TenTec] Auto Tuners
From: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Reply-to: geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 03 Oct 2010 19:59:51 -0500
List-post: <mailto:tentec@contesting.com>
Check their specifications. I think they insist on tuning at low power to preserve the lives of the tiny relays they use. That they can carry but not switch 100 watts. And then tuning with a couple watts, cuts transmitted QRM compared to tuning with 100 watts.

The two manuals I just checked talk about rig protection rather than tuner protection but I think the tuner is destructible too.

TT rigs don't fold back when mismatched unless the PA collector current trips the circuit breaker or the current limit in the power supply.

Since the automatic tuners will tune with 0.1 watt, why make QRM, why not cut the power way back for tuning?

73, Jerry, K0CQ

On 10/3/2010 6:50 PM, Roger Rippy wrote:
Vic, (WA4THR), I had not thought that a 100 watt TT rig would be a problem
for the LDG autotuners. What happens if you forget to turn the power
back when you tune up the match? If you had the 200 watt version of the LDG 
tuner,is it safe to say that it would not be an issue? Thanks for the
feedback Vic.

Roger Rippy W7RIP Bozeman, Montana




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