[Amps] Pin Diodes

[Joe Subich, W4TV]

Or one can simply use additional diodes in the receive path that
are biased off during transmit and on during receive.  The key is
to use two or three stages and sufficient negative bias to keep
them off ... perhaps a multi stage series/shunt switch.

73,

    ... Joe, W4TV


> For a very effective single-band solution using low-cost diodes, see:
> http://www.sm5bsz.com/pindiode.htm
>
> This switch will handle 2.5kW and is fast enough to hear the
> station's radar echoes:
> http://www.sm5bsz.com/aurora.htm
>
> SM5BSZ's design is for 144MHz, but it could be adapted for any one HF
> band using LC networks to replace the coax stubs. However, it is not
> suitable for multiband operation.
>
> Somewhere in a drawer, I even have the diodes...
>
>
>
> --
> 73 from Ian GM3SEK
>
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