Topband: BCI chase update

[N1BUG]

On 01/08/2012 04:46 PM, Lee K7TJR wrote:
>    Paul you might want to be careful just shorting the
>   receiver input. This would also put a short on the
>   output of your preamp. This would have the preamp
>   blasted with RF from your TX while trying to feed a
>   short. My guess would be you could destroy
>   preamps doing this.

Clarification: Actually what I had in mind was to place the short at 
the input of the preamp. I want the preamp protected too. My only 
concern is the preamp might want to oscillate with a short on its 
input. I don't know whether these low frequency, medium gain preamps 
are prone to that or whether it would harm anything if they did 
oscillate. The 25+ dB gain, very low noise figure VHF/UHF preamps I 
am more used to can get pretty squirrelly with something other than 
50 ohms on the input.

73,
Paul N1BUG