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
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