[Elecraft] K3: 160m SWR issue
Guy Olinger K2AV
olinger at bellsouth.net
Tue Nov 3 19:47:21 EST 2009
When the alpha 91 is in line, the K3 meter will report the SWR of the 91B
input circuitry. The apparent SWR of the 91b input can change with
different drive levels. You did not report what "significant reflected
power" was.
73, Guy.
On Tue, Nov 3, 2009 at 2:18 PM, Brian Machesney <nekvtster at gmail.com> wrote:
> I'm feeding a "double L" antenna on 160m (visualize a vertical dipole with
> the top and bottom legs bent to form something like a capital "C" and fed
> in
> the middle of the vertical leg). The SWR bridge on the K3 shows 1:1 SWR,
> but
> when I fire up my Alpha 91B, I see significant reflected power.
>
> I recently saw a post on the topband reflector from another K3 owner whose
> 160m output power is being reduced from 100W to 50W by the K3 even though
> the SWR reads 1:1 on the K3's internal SWR bridge.
>
> Has anyone else seen this or have an explanation for it?
>
> --
> 73 -- Brian -- K1LI
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