Why the 1N4007? They are poor PIN diodes and too slow to be protective
diodes. If you want strong signal protection you need much faster
diodes, 1N4454 or 1N914 derivatives. If you do RF switching with the
diodes you need real PIN diodes to keep down intermod. For that matter
back to back protective diodes are serious receiver intermod causes.
73, Jerry, K0CQ
On 10/12/2010 7:15 PM, Rick - NJ0IP / DJ0IP wrote:
> If you don't run an amp, all you need is an RCA Phono Jack or BNC on the
> back panel, a simple toggle switch on the back panel, and a pair of 1n4007
> diodes. Less than $10. If amp, I would add in a reed relay to switch the
> RX ant to ground during TX.
>
>
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