“Vacuum Tubes” is the topic of the current (February 15) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a half-million downloads since its debut in April 2016 attest to the podcast’s popularity.
VHF
BaoFeng GT-3 Mark II Dual Band UHF/VHF
23CM High Gain Antenna allows Baofeng GT-3 Mark II to transmit in 8KM. Optimal SQL Setting Frequecy Range: 65-108 Mhz(Only commercial FM radio recepti... Read more
Baofeng DM-5R Buyer Beware by VE3IPS
“I have been alerted by several hundred emails about the launch of the new Baofeng DM-5R (I am the President of the Toronto Baofeng users group... Read more
Icom’s RMS-Net Radio Management System Explained
Icom UK are pleased to provide this introduction to its RMS-Net Radio Management System which integrates desktop PCs, Icom hand portables, base statio... Read more
SAMCOM Mini Mobile Radio 218
SAMCOM Mini Mobile Radio 218 Key Specifications Frequency Range V:136.000MHz-174.000MHz V:220.000MHz-248.000MHz U:400.000MHz-470.000MHz System F3E(FM)... Read more
NSTIG-8R Dual Band (VHF/UHF) Analog Portable Two-Way Radio
VERSATILE RADIO FOR AMATEUR AND COMMERCIAL USEThe NSTIG-8R is certified for use on commercial and amateur frequencies. The NSTIG-8R is FCC Cert... Read more
Review
SDRplay RSP 1A Review and SDR Primer
The new 14 bit SDR wideband receiver from the UK. I also include a 15 minute SDR primer https://www.sdrplay.com/rsp1a/ KEY BENEFITS __________________... Read more
“Generators” is the topic of the new (June 22) episode of the “ARRL The Doctor is In” podcast.
“Generators” is the topic of the new (June 22) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Engineering, “A... Read more
First Look at the new Yaesu FTDX-101D – DXEngineering
Yaesu FTDX-101D Announced features for incredible Yaesu FTdx-101D include: * Elite-Level 160 to 6 Meters 100 Watt Transceiver * Superb and astonishing... Read more
Using the MFJ-1788 Mag Loop Antenna Horizontally
“I test the MFJ-1788 in a horizontal position on my rooftop. The performance is great on 20m. I used an MFJ Cobweb antenna as the comparison ant... Read more
IARUMS Region 1 Presentation by HB9CET
The International Amateur Radio Union (IARU) is a federation of national associations of certified radio amateurs, representing over 150 countries and... Read more
Chameleon Emcomm III Portable Antenna (Winter Field Day) – Ham Radio Q&A
“We’re setting up for Winter Field Day and testing out the Chameleon Emcomm III Portable HF Antenna.” CHAMELEON ANTENNA EMCOMM-III P... Read more
Equipment
SPE Expert 1.5K-FA Linear Amplifier
300W • -60dB Product Specifications Powerful: solid 1.5kW in on on all modes. Very Light: about 10 kgs (about 22 lbs). Very Small: H 12, W 28, D 36 cm... Read more
KPA1500+ W Solid State Amplifier /160-6 meters – Elecraft
New KPA1500 solid-state amplifier won’t take over your entire desktop: it’s just 4.5 x 13.5 x 11.5” (HWD; 11.5 x 34 x 29 cm). The lightweight companio... Read more
Radioenge – RA-S1 – Antenna Rotator System
Radioenge – RA-S1 Rotor controller RA-S1 is a digital controller for controlling rotor azimuthal position Features Speed control by PWM (Pulse W... Read more
Yaesu Rotor Controller Az. Insert
CQmaps – Professional Maps for Amateur Radio, is extremely happy to offer the Amateur Radio community a truly helpful station aid for your Yaesu... Read more
QRP – Multi-band, Direct Conversion CW Transceiver
Specifications Recever: Rx current: 80 M : 70 ma, 160 M : 100 ma Sensitivity: ~ -90 dBm (5 uV) Three audio bandwidth settings Transmitter: 80 M... Read more
Antenna
MFJ-856 Line Noise Meter w/ 3 Element Beam
Walk or drive around with this handheld, directional noise finder with 3 element beam and meter to search out foxes, leaky insulators, loose ha... Read more
Metrovna modern antenna analyzer
Metrovna and ‘a modern antenna analyzer designed for amateur radio.It allows you to measure all the parameters of an antenna as SWR, R, X, Z,Phase,RL,... Read more
144 MHz Halo Antenna
Construction and Analysis of a Low Cost Omnidirectional Horizontally Polarized Antenna for 144 MHz by Dr. Carol F. Milazzo, KP4MD (posted 23 May 2012)... Read more
7el LFA2 Noise comparison on 50 MHz
VA3NCD had the luxury of being able to install 2 50MHz 7el Yagis for testing one against the other. One an M2 7el JHV, the other... Read more
Introduction into Theory of Direction Finding
Introduction Applications of direction finding While direction finding for navigation purposes (referred to as cooperative direction finding) is becom... Read more
Handheld HF System – Elecraft KX3 and a AlexLoop Antenna – Antenna Description
“Handheld HF System – Elecraft KX3 and a AlexLoop Antenna This is my first try no make a Magnetic Loop to be integrated to the Elecraft KX... Read more
Digital Modes
Ultra Portable PSK31/RTTY Digital Modem Ham Radio HF Digital Modem
Digital Modem can encode/decode BPSK31/63, RTTY, QPSK and CWmodes without PC, specially for portable digital communication。With its internal high perf... Read more
WSJT-X Version 2.0.0-rc1 Released – Download FT8
Go to New Features in WSJT-X 2.0 for a detailed description of its new features. Further technical information (primarily of interest to programmers)... Read more
FT8 Roundup Contest to test WSJT-X (v2)
FT8 Contest – WSJT-X Photo:EA2CCG “A one-hour “practice contest” will be held next week using the FT8 mode and the ARRL RTTY... Read more
FSQCALL – New Digital Mode
A Directed Messaging System for FSQ Introducing FSQCall Sending text using FSQ is generally very reliable, certainly more so than other digital modes... Read more
New “Pre-Release” Version of WSJT-X Includes FT8 Changes
A new “pre-release” version of WSJT-X now is available. This is the Amateur Radio digital software suite developed by Joe Taylor, K1JT, that includes... Read more
WSJT-X Version 1.9.0-rc2
The WSJT Development Group is pleased to announce a Release Candidate of WSJT-X Version 1.9.0. This is a second beta release, so it’s called v1.... Read more
