Review
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MFJ Extends its Cobweb Antenna to 40 Meters [ Review ]
Ask Dave 71 reviews the MFJ cobweb antenna, covering 20 through 10 meters. MFJ recently came out with a modification kit, adding 30 and 40 meters. Thi... Read more
Is the Airspy Discovery HF+ sensitive on VLF? Testing with a Garrett metal detector
“It occurred to me that my Garrett metal detector is a signal source at 13.6 KHz, so I decided to test to see if the Airspy hF+ Discovery is abl... Read more
Chameleon CHA F-Loop 2.0 Set Up On The Porch, My Current Setup
https://www.youtube.com/watch?v=gPEYutNVdC0 Read more
SAQ Alexanderson Alternator Transmission Set for Christmas Eve
Sweden’s Alexanderson alternator station SAQ has planned a Christmas Eve transmission on 17.2 kHz. The transmitter will be tuned up starting at around... Read more
VHF
Introducing Hytera Multi-mode Advanced Radio Voice is still critical, enriched with broadband data
Hytera, a leading global provider of innovative professional mobile radio (PMR) communications solutions, officially launched its highly anticipated L... Read more
VR-P25 Power Amplifier for Handheld Radios
VR-P25 is a portable, lightweight, Wide coverage RF booster amplifier for Handheld Radio equipment, proprietary and emerging waveforms. Two Way Radio... Read more
BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie
Description : BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie The latest radio to come from Baofeng! This radio has upp... Read more
TH-D74 VHF/UHF Dual Band Handheld with GPS Webnair
TH-D74 The TH-D74 is Kenwood’s latest hand held transceiver. It offers a wide range of features including digital (D-STAR), 2m/70cm analogue FM, APRS... Read more
Antenna
GigActiv GA3005 Ultra Wideband
GigActiv GA3005 Ultra Wideband Frequenzy range : 9 kHz – 3 GHz Power Supply: 5,5V – 15V Gain: + 3dB Upper Frequency Limit (-1db): 3000 MHz... Read more
Create CLP-5130-1N VHF/UHF Log-Periodic Antennas – VHF/UHF, 21 Elements, 50-1300 MHz
VHF/UHF Log-Periodic Antenna Antenna, LPDA Type, VHF/UHF, 21 Elements, 50-1300 MHz, 500 W, 50 ohms, 6.66 ft. Boom Length, Type N, Female Create CLP-51... Read more
Kojinsha – KA1-DP – 7-50MHz – HF Antenna
Model KA1-DP Gain/Size Frequency Range 7-50 Element 1 Number of Elements for Each Band 7-50MHz DP Longest Element（m） 10.4 Power Rating 7/10MHz 1.2kW S... Read more
News
Quantum Receiver Can Detect Huge Swath of the RF Spectrum
US Army researchers have built a so-called “quantum sensor,” which can analyze the full RF spectrum and real-world signals, a report on Physics.org sa... Read more
Approaches to Tackle Noise Problems Vary, Remedies Elusive
RF noise is a frequent discussion topic among radio amateurs. A proliferation of electronics has cluttered and complicated the noise environment; it’s... Read more
ARISS, NASA, and ESA Continue to Probe Amateur Radio Problems on ISS
Amateur Radio on the International Space Station (ARISS) International Chair Frank Bauer, KA3HDO, reports that the ARISS team has been working closely... Read more
Yaesu FT-DX10 HF Transceiver – Is it Right for You?
We take a look at one of the most recent HF transceivers to come onto the ham radio market. Could this be the new FT-101E that was one of the best sel... Read more
What is the Base Holding Up My Hexbeam?
William Noble asks about the base used to hold up my MFJ-1846 Hex Beam antenna. The actual base that allows for a fold-over mast was designed by frien... Read more
