K3 rx antenna routing...

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K3 rx antenna routing...

Brett gazdzinski-2

Looking at the new diagram, it looks to me like
there is a 'flaw?' in the design of the way the separate
antenna is done in the K3.

It looks to me like there is no way to have a separate RX
antenna input that goes through the low pass filter
that is part of the antenna input module, or the antenna
tuner module.

ONE of the things I plan to do with the K3 is to excite 2
other transmitters (not at the same time) using the antenna
1 and 2 outputs, and have the RX antenna connection hooked
up to an RX port on the station control.

Antenna 1 and 2 wont be hooked up to antenna's, only
the rx antenna goes to the antenna.

I did that with the 756 pro.

I wonder if I will take any hit in performance by the
rx path  not going though the low pass filter.

The only way I see to 'fix the flaw' would be to make the
low pass filter separate from the antenna input module
or antenna tuner module.
That would add cost and complexity I suppose....

I doubt I will get much interference from frequencies above
the operating frequency, and don't know where the low pass
filter (s) rolls off, if its different filters switched per band,
or what....

Got to be switched per band I guess, since the rig goes up to
6 meters...

Brett
N2DTS




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