[TenTec] Auto Tuners

[Dr. Gerald N. Johnson]

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
>
>
>