New SE-3 MK IV High-Fidelity synchro-phase Detector

Eliminates Selective-Fade Distortion and Garbling Able to Receive One Sideband at a Time to Minimize Interference. SE-3 MK III D Introducing a whole new world of shortwave and broadcast reception with the new Sherwood SE-3 Mk IV phase-locked AM product detector. Even with the evolution of modern-day communications receivers, with their improved stability, selectivity, and…

Great Circle Map. HF Prop Software

You can use this program to make Great Circle maps from any location in the world. The program has become quite popular and it is totally free! It is now in beta stage and may be lacking some features. Additional features: * Borders, coastlines, rivers, lakes can be added * Text and lines can be…

New SAC-X Controller

    • Communications with transceivers (ICOM, YAESU, TEN-TEC) • 18 programmable outputs, plus 3 WARC Bands. User software allows to write name of each antenna as you wish and enables any of 18 outputs for proper antenna • Controls up to 4 antennas, plus 4 receiving antennas on each band • Three different modes…

WB6DHW UHFSDR & Kit’s

The UHFSDR is a Software Defined Transceiver covering the 1.75 MHz to 700 MHz frequency range. A Si570 is used for frequency control. Two LVPECL 4 GHz max.flip flops produce I and Q LO signals at 1/2 the Si570 frequency. A pair of 1-1000MHz Double Balanced Mixers are used to convert signals to and from…