"Steven Swift" wrote in message
...

The summary from emails is:

1: Fet will be overloaded and generate lots of intermodulation.
2: I have to choose the fet very carefully (I have thousands to select
through).
3: Need bandpass filters.

I think I still to build a box and give it a test.

Won't take much time.

Steve.
The problem with filters in front of the FET (and this is where they must
be in order to tame the IM), is that their input Z will load the wire
defeating the purpose of having a hi Z FET in the 1st place. A single
parallel L-C trap might afford some protection from the worst offender- but
seems like a lot of trouble.

Dale W4OP