This blog video discusses the power amp design of the DIY transceiver. A single MRF101 LDMOS RF power Mosfet delivers up to 80W in the 20m, 40m and 80m band.
Hello Stefan. I’m Don Moore W0CTX (see qrz.com). You have done very excellent work. I have been looking at the MRF101 as well. Also, another new NXP LDMSOFET: MRFX035H 35-Watt 50 Ohm in/out. I want to explore linearity to the point where the major harmonics are as low as possible to simplify LPFs.
I have a full shop like you and now in the ‘fun’ stage of retirement (no more commercial SDR work for me).
I am curious about the ST board you are using and the source /availability of code for the TFT display. This is my major weakness! (I’m RF hardware guy)
Thanks Ron for your comment. Wow, you have a lot of experience in RF design! I am currently working on my next video blog about the digital part of the DIY transceiver, that should cover most of your questions (I hope ;-)). I would be happy to get in touch with you again. 73, Stefan
Hello Stefan. I’m Don Moore W0CTX (see qrz.com). You have done very excellent work. I have been looking at the MRF101 as well. Also, another new NXP LDMSOFET: MRFX035H 35-Watt 50 Ohm in/out. I want to explore linearity to the point where the major harmonics are as low as possible to simplify LPFs.
I have a full shop like you and now in the ‘fun’ stage of retirement (no more commercial SDR work for me).
I am curious about the ST board you are using and the source /availability of code for the TFT display. This is my major weakness! (I’m RF hardware guy)
I would like to correspond further with you.
Best 73’s Don W0CTX
Thanks Ron for your comment. Wow, you have a lot of experience in RF design! I am currently working on my next video blog about the digital part of the DIY transceiver, that should cover most of your questions (I hope ;-)). I would be happy to get in touch with you again. 73, Stefan