[Elecraft] Tuner Loss question

[Wes (N7WS)]

You would need to know the unloaded Q of the capacitor(s) and Inductor(s) in the 
circuit when a match is obtained and the complex impedance (not the SWR) of the 
load to calculate the total loss.  More than likely, it will be highly frequency 
dependent.

N7WS.


On 2/11/2014 10:47 AM, Jobst Vandrey wrote:
> I have lots of data in the loss to be expected in Coax or Open wire when
> running at higher SWR into a multiband antenna  - however, I do NOT have
> any real world data on the losses to be expected in a tuner system at
> higher SWR.
>
> So:
>
> Are there any numbers available on what additional losses my Elecraft K3
> (SN 5283) antenna tuner will experience when the SWR is high - say about
> 5:1 or higher when feeding a multiband antenna with 50 Ohm coax on 20
> meters?  Should I expect another 3 dB down in signal strength during
> receive - and also Transmit?  Or are the losses higher or lower then that?
>   Also, are the losses frequency dependent (like on coax) or are they the
> same across the bands.
>
> Thanks for any available data.
>
> Jobst
> AC0LP
>