[Premium-Rx] Receiver protector schematic?

[John P Ceresole]

Hi Craig

I have a trio of WJ-8940B and a WJ-8999 - these are measuring recievers for 
EMC and Tempest - designed to "look" into 1 volt and more into their front 
ends - their protection is 2 diodes connected in parallel cathode to anode 
and anode to cathode - let through voltage 0.7 volts or thereabouts.  This 
protective diode pair is in a neat SMA -plugged unit about 1/2 " long - can 
let you have a photo if you so need.  The 8999 has an N-Type protector for 
it's 1 to 12.4 GHz frequency range.

Hope that is a help.

Best regards

John G8 BSD
At 02:24 19/06/2005, you wrote:
>Does anyone have a schematic for a receiver front -end protector, such as 
>the old Drake RP-700?
>
>Thanks and 73,
>Craig
>W3CRR
>
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