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AOR AR-DV1 is a stand-alone SDR receiver which can receive both analog and digital transmissions. It is compatible with many popular digital modes: DMR (Digital Mobile Radio) dPMR (Digital Private Mobile Radio) D-Star APCO-25 NXDN Yaesu Digital Alinco Digital Digital-CR AOR G4GUO (=used in…
Table VSWR, Return Loss and Transmission Loss vs. Transmitted Power. Return Loss Trans. Loss Volt. Refl Power Trans Power Refl VSWR (dB) (dB) Coeff (%) (%) 1.00 — .000 .00 100.0 .0 1.01 46.1 .000 .00 100.0 .0 1.02 40.1 .000 .01 100.0 .0 1.03 36.6 .001 .01 100.0 .0…
The Crimson SDR from Per Vices is the future of software defined radio. The flexible wideband, high-gain platform comes equipped with four independent receive chains and four independent transmit chains, each capable of up to 200MHz of RF bandwidth up to 6GHz. At the core of the digital front, Crimson…
The WJ-8711A is a fully synthesized, general-purpose HF receiver for monitoring RF communications from 5 kHz to 30 MHz with 1-Hz tuning resolution. By combining analog and digital signal processing (DSP), the WJ-8711A achieves high performance at low cost. DSP techniques accomplish functions such as noise blanking, IF filtering, AGC,…
The Noble Radio NR-4SC is a simple to use 10 Watt (minimum) 4 Meter SSB/CW transceiver. The radio operates USB and CW. The NR-4SC uses a single conversion design with an IF frequency of 10.7 MHz. Front end bandpass filters limit out of band signals into the RF Preamp stage.…
The project name ADAT (All Digital Amateur Transceiver) denotes an ongoing development of an amateur transceiver which consequently uses digital signal processing. Therefore, all relevant functions are performed by software providing a very high degree of flexibility. Similar products are available on the market as Software Defined Radios (SDR), but…
This tutorial by Jim Brown (K9YC) describes, analyzes, understanding and solving RF interference problems. Chapter 1 – Some Fundamentals Chapter 2 – Ferrites Chapter 3 – Back to the Basics Chapter 4 – More Suppression Applications Chapter 5 – Suppressing Interference To Your Ham Station Chapter 6 – Baluns Chapter 7…
The ICQ Amateur Radio Podcast is a free weekly radio talk style podcast for amateur ham radio operators by amateur ham radio operators Martin Butler (M1MRB & W9ICQ) and Colin Butler (M6BOY). Each episode we review the current news, discuss a technical feature and the hobby in general, and hear…
