[Elecraft] OT:. Tuner losses

Richard Fjeld rpfjeld at outlook.com
Fri Aug 5 13:27:17 EDT 2016


Eric closed the G5RV thread, so I will change this subject as it is not 
related to the G5RV.

On 8/5/2016 11:57 AM, Richard Fjeld wrote:
>
> On 8/4/2016 4:00 PM, Alan Bloom wrote:
>> It's true that tuner losses are the manufacturers' dirty little 
>> secret. Loss is rarely specified, partly because it can be pretty 
>> bad, and partly because it is hard to measure, but also because it is 
>> not constant - it depends on the particular impedance being matched. 
>
> I read about tuner losses often, and I've seen figures posted, but 
> whenever I try to determine it, I can't.  The only way I can determine 
> tuner loss is by signal reports.  While participating in round tables 
> on 80 meters, I go down in power as low as the K3 will go, and the 
> participants in state, and in an adjacent state or two, still hear me 
> as evidenced by carrying on a discussion.  I use open wire feedline 
> with a loop cut for the bottom of 80 meters.
>
> I know this is not an accurate way to measure tuner loss, but the loss 
> doesn't seem to be a problem. ???
>
> Dick, n0ce
>

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