[450] Awesome RF score!!!

djmay at comcast.net djmay at comcast.net
Fri Dec 21 19:33:29 EST 2012

I believe medication is the proper course of action at this point. 

----- Original Message -----

From: "John Foege" <john.foege at gmail.com> 
To: "144.450 Mailing List" <450 at lists.vhfwiki.com> 
Sent: Friday, December 21, 2012 7:14:01 PM 
Subject: [450] Awesome RF score!!! 

Check it out.... 

For 3 Euro per board (lots of really expensive, salvageable RF parts on here) this is the most insane RF deal I have ever found. Just the 4 ultra low noise microwave GaAs FETs on here would normally be very, very expensive on their own. You get 4 for 3 Euro....This price can NOT be beat....wow.... 

Check out the write up for the board and then the site to get your hands on them...I'll be ordering a bunch. 

Merry RF Christmas!! 




And yes, it's 3 EUR and not 3000 - the comma is the way the Europeans delimit between dollars and cents....major major score!! 

These are some of the highest gain lowest noise FETs ever - and not only that, but normally to get a really low noise figure you run FETs @ around 5mA or less. At these low bias currents, however, their IMD performance goes way down and they are more sensitive to overload from adjacent strong signals. 

However this FET can achieve a near optimum low noise figure @ 70mA of bias....!!!! That is insane. I've never seen that before in all the datasheets I've looked at. That means that it will have a really high IP3 (so really good at staying linear even with strong adjacent signals - no overload and no IMD). 

You can get a sub 0.5 dB NF with these baddies with over 25 dB of gain and extremely good IMD performance. Quite possibly the best LNA ever...in fact, these microwave boards are just that - LNAs for 10 Ghz. 

Score !!! 

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