RF construction – Page 5 – The PA3CSG website

mW meter

30/10/2009 graat 0

Mw-meter 60dB dynamic range from 0-500 MHz using the AD8307 Photograph of finished unit: Features: This unit works very well with the couplers described […]

45 MHz High Pass Filter

17/03/2020 graat 0

To protect my 50 & 70 MHz transceiver against high RF from the HF station, the antennas are only separated 1 meter apart I designed […]

Power spike / Overshoot on transmit for Yaesu FT-736 & FT-790 and Kenwood TR-9000

22/03/2020 graat 0

In order to solve some problems with solid state amplifiers, my friend Jack PE1KXH measured the power spike of some transceivers. The first exercise was […]