The front end saver, or receiver feedline shorting, is a good idea if you
are running power.
However, with your receiving antenna so close to your transmitting vertical,
you will have significant pickup of noise reradiated from the vertical. A
number of us are using relays to disconnect, or detune the vertical during
transmit. This greatly reduces the noise you hear during receive intervals.
Hope this helps.
73, Bob N6WG
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