The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) March newsletter reports that the Russian “buzzer” on 6,998.0 kHz has disappeared. For a long time the system interfered with the lower edge of the 40-meter band.
In addition, a Russian F1B transmission on 7,193 kHz — believed to be emanating from Kaliningrad — has ceased. IARUMS credits German telecoms authorities for submitting complaints and the Russian military.
The IARUMS March newsletter further reports that a Chinese over-the-horizon (OTH) burst system radar “foghorn” signal is being heard again on both 40 meters (jumping between 7,128 and 7,187 kHz) and on 20 meters (14,218 kHz). The signals are 10 kHz wide with burst durations of 3.8 and 7.6 seconds.
A “numbers” station said to be from the Ukraine SZRU intelligence agency was reported on March 30 on AM (female voice) on 14,212 kHz.
Source:ARRL
Equipment
NEW Alinco DM330FXE 30A Supply with USB ports
Alinco DM-330FXE This CE approved switch mode power supply packs a lot of features into a compact, lightweight design that boasts a 9-15VDC variable... Read more
AR5001D 40kHz-3.15GHz, Professional Grade Communications Receiver
AR5001D 40kHz-3.15GHz Cellular frequencies blocked on USA version; unblocked version available to qualified entities, documentation required. Download... Read more
21st Century Transceiver Design: The K4 High Performance Direct Sampling SDR
The Elecraft K4 High Performance Direct Sampling SDR Read more
Airspy HF+ Discovery is the Most Refined HF/VHF SDR
The Airspy HF+ Discovery sets a new standard in terms of reception performance with extra pre-selectors for all the supported bands and a New DSP Core... Read more
Review
Make a mains filter for EMC & noise reduction
This video shows how I have made a mains filter that is extremely effective in reducing and in some cases eliminating completely EMC from the electric... Read more
Soundcards and the SignaLink USB
Soundcards and the SignaLink USB Read more
Elecraft K4 Updates from Orlando Hamcation 2020
HIGH-PERFORMANCE DIRECT-SAMPLING SDR Our new K4 doesn’t just harness the latest technology: it blends new tech with a classic user interface to create... Read more
App - Mobile
AmsatDroidFree now open source
AmsatDroidFree satellite tracking App for Android devices is now open source. This App predicts future passes for amateur radio satellites for a speci... Read more
New ARRL Repeater Directory Will Leverage Crowdsourcing Technology
ARRL partner RFinder, the creator of a web and app-based directory of Amateur Radio repeaters worldwide, will supply all data for the 2017-2018 ARRL R... Read more
APRSdroid – APRS for Android
What is APRSdroid? APRSdroid is an Android application for Amateur Radio operators. It allows reporting your position to the APRS (Autom... Read more
RUMlogNG2Go for iOS version 3.3 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be do... Read more
Wizkers:Radio APP
Wizkers:Radio is a controller for various Amateur Radio equipments. At the moment, it supports several Elecraft radios and amplifiers, as well as the... Read more
Software
SDR++ THE BLOAT FREE SDR SOFTWARE
In this video we take a look at a new and upcoming SDR Application called SDR ++ Wide hardware support (both through SoapySDR and dedicated modules) S... Read more
Released SDRuno 1.41
SDRuno Roadmap Updated 13th September 2021 Version 1.41 of SDRuno® is the latest full production version. The remaining features along wit... Read more
SDR++, A new SDR program. Open source and cross platform!
SDR++ It’s nice to see a new cross platform program in the scene. https://github.com/AlexandreRouma/SDRPlusPlus Read more
N1MM+ Updates!
Version 1.0.9252 (August 31, 2021) K4 Radio Control: Increased the command pacing and slowed the radio polling to eliminate a radio configuration erro... Read more
Ham Radio Deluxe Software Overview
This is an updated overview video that describes the overall features of the Ham Radio Deluxe Software suite. Ham Radio Deluxe Guides and Manuals... Read more
