The 902 MHz EME Challenge Part I

 February 10, 2024

There seems to be a sudden surge of interest in achieving Worked All States on 902 MHz. W5LUA has just nailed down WAS #1 and N1AV has 48 States in hand. I was asked if I could active Montana and other western States via the moon to help the cause. Sure! 

KA6U has been out and about including 902 EME on his epic road trips, so folks have been upping their W.A.S. totals already thanks to his Herculean efforts. Here's a taste of his activity.

Many hands make a 902 moonbounce station - Ian, W6TCP sent me a NXP Semiconductor 915 Mhz test pallet to work up into a fully functioning amplifier. I managed to stick things together in two four hour work sessions to create one of my "KISS" amps, but but initial testing was a bust. After some expert help from W6PQL, we can now say, "It's alive". I should have 350 watts to play with given the drive from the transverter. The nice thing about the NXP pallet is that the bias voltage is generated directly from the 48 VDC  VDD supply.

N1AV plyed me with a loaner 144 MHz to 902 MHz transverter he had picked up along the way. W2HRO sent west a patch dish feed for my 2.4M dish. I've have two superb WD5AGO pre-amps in hand, so I'm close to first RF on my sixth EME band! Later this month after a long-planned trip south to bask in the warmth of Mexico we'll see what can be done.

I understand Jim, W6PQL is now offering 902 amp pallets. So QRO power on the 33cm band is no longer hard to generate.

So this is a group effort to get some western States on the air - have camper will travel*. 

* Once I won't freeze my butt off - we've seen -40 degrees Fahrenheit (-40 C)   here in Bozeman this winter!

NXP QRO pallet with bare-bones support circuitry. KISS!

The W2HRO feed is a big boy! The hybrid label was applied upside down.