Using the Hermes Lite and Spark SDR software I was able to monitor 10 bands simultaneously. Alan M0NNB provides some excellent software that works with the Hermes Lite SDR, it’s especially good for band skimming. The software and radio can also be used as a 4 band TX/RX combination or configures as 10 Band RX […]
Year: 2021
Receive Active Loop Antenna
I operate 2 multi-band receivers, both capable of receive from 0 to 30 MHz and I wanted to find a receive antenna that would perform well on HF and LF. Dipoles, long wires or EFHW are fine up to a point, but without some matching, they will not work over a wide frequency range. The […]
Listening to HF Air Traffic
The HF bands still provide some interesting listening, even with all the modern technology it still provides a low cost backup. Air traffic will of course use VHF within a couple of hundred miles of land, but that means on transatlantic flights the vast majority is outside of VHF coverage. HF is by no means […]
Icom 705 RF Power Review and initial thoughts.
The IC705 is the latest and smallest multi-band transceiver by Icom. It covers HF to UHF all mode at 10w (5w on an internal battery) Power measurement on WM2 meter with external power supply RF Power % Measured Power (W) 100 10w 75 7.2w 50 5w 25 2.5w 10 1w 5 0.5w 0 100mW Supply […]