Re: 10 GHz LNA

OK, so I did a quick search on eBay and the cheapest NIB one I could find was Item 272315432737, $35.00 + $5.00 shipping.

It has an LO of 10 GHz, below 10.368 GHz, this means the filter still has some head room where we want it.  You are going to disable the DRO oscillator and take your output after the filter.  You are also going to tune the filter down in frequency (you won’t believe how simple this is).

The only soldering you need to do is to make a short jumper from .085 semi rigid coax and connect it to the output of the filter and to an SMA female connector that goes into the hole where the type F connector is on the back.  The traces are necessarily quite small but you should be able to do it.  You will also need to add a feed-through capacitor for the 12V.

Have I scared you off yet?  If not I’ll order one with you so I have one to look at.

Dave, W6DL