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- Mihai on Hermes Lite 2 SDR Transceiver
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- m0spn on 70W HF Linear Amplifier Project
- Cesc Gudayol on 70W HF Linear Amplifier Project
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Tag Archives: linear
70W HF Linear Amplifier Project
Whilst very happy with the performance of the Hermes SDR, I’ve been considering a matching HF linear to provide a moderate (6-9dB) increase in output power. I have ideas about operating portable using battery power; ~50W seems a nice balance … Continue reading
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Tagged amplifier, battery, hermes, linear, PA, protection, SDR, SWR
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Amplifier PTT Buffer Schematic
I’ve been keying my KW1000 linear using a relay to buffer the FT847. The FT847 closed a 12V circuit across the relay and the relay in turn keyed whatever voltage/current the linear requires. The relay in the KW1000 is old, large … Continue reading
Swan 1200X and KW1000
After spending the xmas holiday converting my noisy poor performing end fed random wire to a resonant 40/30m fan dipole I decided 2015 would finally be the year I invest in a linear amplifier. This would be primarily for home … Continue reading