qrp

si570 (DDS) Modular MEPT Project - HF from g3zjo 195 days old

[ ... ] true QRP but once you throw that Xtal away you are on a slippery slope. I quake in fear at some of the temperatures that silicon gets run at so I ...

10.140 Mhz QRP MEPT Experimental Propagation Transmitter from g3zjo 677 days old

Now we have the measurement method sorted I can confidently say that my new QRP MEPT is 26.3mWatts Output.

QRP Power Measurement from g3zjo 678 days old

[ ... ] QRP power measurement. The piece described an adapter, two SO239 sockets with 50 Ohm resistive load, diode and capacitor. It gave the formula ...

QRP 80 meters JT2/JT65 from g3zjo 701 days old

Once again we are testing JT2 and also JT65 on 80 meters when the propagation is really poor between UK and South West France a path of 720Km. The picture ...