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.
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.
I also need a LP or BP filter after PA, and consider to make a VHF transmitter harmonic filter described by G4SWX John.
31.05.2021: Work is still in progress, and I still search for a good QTH for my beacon.