Beacon OZ1FYR

We need a 144 MHz beacon in the western part of Denmark, and a good an cheap way to solve this, is using the RFzero board as exciter and control board.

Next thing is to make a 100 to 150 MHz low power Low Pass filter, and this is possible by using one of the small PCB’s from RFzero.

More information about component values and filter data on RFzero WEB

Above filter is not suitable for power above 0.5W, so I searched for a better solution, and found a nice small low pass filter on Ebay.

Output form RFzero on 144 MHz is only 20 mW, so I have to build a small Power Amplifier based on a power block from Mitsubishi.

I was quite sure that I had a 30W block the shelf, bu I was not able to find it, so I purchased an new one, and decided to buy a Mitsubishi RA60H1317M.
It’s a 60W type, but will be limited to 5-25W depending on future QTH.

31.05.2021: Work is still in progress, and I still search for a good QTH for my beacon.

See also for further information about OZ1FYR.