"OM4001A" HF Linear Amplifier

General description and the advantages of the OM4001A amplifier. (Also read : https://www.cqdx.ru/ham/qro-qrp/om4001a-hf-linear-amplifier/) The OM Power model OM4001A is an automatic power amplifier, designed for use on all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F. The…

"Malahit DSP2" SDR HF/VHF/UHF Radio Receiver.

“Malahit DSP1” Radio Receiver. Is a portable near pocket sized STANDALONE (no computer required) “Wide Coverage” DSP radio receiver using SDR software (software defined). Includes it’s own color 3.5 inch LCD touch screen , internal lithium ion battery with charging circuit and constructed in a robust lightweight metal case. Also contains a fairly large built…