[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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