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The latest IARU-R1 Monitoring System newsletter reports on the continuing interference on various frequencies in the 7 MHz band from Russian language propaganda broadcasts Over The Horizon Radar (OTHR) systems in the Russian Federation and China continue to cause interference in the amateur 14 and 21 MHz bands and Iran has been operating a radar in the 21 and 28 MHz bands. The International Amateur Radio Union Monitoring System (IARUMS) Region 1 June 2020 newsletter can be read at Recordings of military transmissions can be found on the Signal Identification Guide Wiki at Monitor the short wave bands on-line with a web based SDR receiver at IARU Monitoring System (IARUMS) Source:http://www.southgatearc.org/
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Antenna
Radials or Not?
Joe, NE1JT, has a vertical dipole antenna and has a very simple question about it, and antennas in general. “Should ground radials be added?... Read more
DX Engineering Coax Cable Stripping Tools DXE-UT-8213
DX Engineering Coax Cable Stripping Tools provide a new and easy way to prepare your 50 ohm coax cable for the installation of solder-type PL-2... Read more
Omni-Directional – Circularly (Mixed) Polarized Antenna for 144 MHz / VHF / 2 Meters.
Introduction and Background This is an experimental project that may lead to further development in the future, but even as presented below, it does w... Read more
6-10LP5-125 – M2 Antenna – 7 and 10 MHz
The 6-10LP5–125 log periodic is a rugged, versatile performer designed for years of trouble free service. For the amateur radio operator it cove... Read more
A Simple Wire Tuner
Here’s a basic, but effective and efficient, antenna tuner for feeding random wires, especially half-wave end-fed wires. Read more
Review
SunSDR2 Pro review by ZL3DW
First impressions First impressions, the radio arrived very well packed. It was double boxed with the radio box inside a standard DHL box. There was a... Read more
Debut of the Hytera AR482G DMR HT : Ham Radio 2.0: Episode 14
This is a new DMR HT from Hytera made for the Amateur Radio Community. In this episode I will show the menu of the radio and the CPS software, and key... Read more
You only need one Station Ground Rod
Rodney, is asking if he can use the same ground rod to ground two different dipole antennas without losing efficiency or performance? Read more
SPE 2K-FA Amplifier – ARRL Review
2 KW Solid State Fully Automatic Linear Amplifier The smallest in its class. Built-in Power supply and Automatic Antenna Tuner. Dimension: L 38, H 18.... Read more
HF Mobile Antennas – Ham Nation
Gordon West (WB6NOA) talks about HF mobile antennas, and getting the feed-point impedance at 50 Ohms. Also covered, is a recommendation on the type of... Read more
VHF
Compare All BaoFeng Radios
Compare All BaoFeng Radios Web Based Comparison Chart See More: Read more
Vitai VT-5188
Vitai VT-5188 1. Frequency Range: VHF: 136-174MHz/245-245.9875Mhz UHF: 400-480MHz 2. Output Power: VHF: 10W/25W/60W ... Read more
Icom ID-880H
Icom ID-880H Switchable VHF/UHF dual band The ID-880H provides VHF/UHF dual band capabilities (one band at a time) via a simple band switching system.... Read more
Icom ID-31E
HF D-STAR Digital Transceiver Icom ID-31E Showing its commitment to D-STAR, Icom have now released its next generation model in the form of the... Read more
INTRODUCTION OF THE AnyTone DMR DIGITAL/ANALOG VHF AND UHF RADIO
PRESS RELEASE Qixiang Electron Science & Technology Co., Ltd was founded in January 1993, and is locate in Quanzhou in China. Qixiang is a high-te... Read more
News
SKYWARN Recognition Day is Saturday, December 2
A heads up: SKYWARN™ Recognition Day (SRD) will take place this year on Saturday, December 2 from 0000 until 2400 UTC (starts on the evening of Friday... Read more
IEEE Microwave Theory and Techniques Society Seeks Student CubeSat RF Hardware Proposals
The IEEE Microwave Theory and Techniques Society (MTT-S) has announced the MTT-Sat Challenge for groups of students developing RF hardware for CubeSat... Read more
30th International Marconi Day Event Set for April 22
Dozens of official “award stations” have registered to take part in the 2017 International Marconi Day (IMD) event, this year being held on April 22,... Read more
Silent Key Memorial Event Commemorates Departed Radio Amateurs
The Silent Key Memorial Contest on November 1 will honor radio amateurs who have died in past years or more recently. The CW-only event gets under way... Read more
2021 Edition of The ARRL Handbook and New Microcontroller Projects Book Available
It’s here! The ARRL Handbook for Radio Communications for 2021 — your complete guide to radio experimentation, discovery, and innovation — n... Read more
