Jim W6LG uses a signal generator and a panadapter to measure the loss in 30 coax connectors
Antenna
Build the Pennyloop UHF Antenna
by Pennyloop The Pennyloop UHF antenna offers high performance in a very simple and cost effective design. It is also a very compact design lending it... Read more
W4OP Loop Antenna
It seems that more and more, amateurs are facing increasingly strict HOAs. This antenna is not designed for the backpacker, but rather for the QRP ama... Read more
InnovAntennas ‘Big Gun’ arrays
InnovAntennas continue to supply the World’s top DX’ers with large antenna systems with over 55% of sales being into the USA and 10% into... Read more
Optibeam OB8-4M 8 Element 4 Band
The OB8-4M is an extremely effective, compact and innovative Yagi for the classical four bands 40, 20, 15 and 10m. It is the first trapless Yagi for t... Read more
VHF
Alinco Released a new radio Today – DJ-R200D
Alinco Corporation December 6, 2016, announced the latest model of the 420 / 440MHz band specified low-power handheld machine equipped with a super mu... Read more
IARU Region 1 VHF Newsletter released
WRC 2015 When drafting this issue, the World Radio Conference 2015 had concluded his work. During 4 weeks more than 3000 participants attended this co... Read more
TYT MD-2017 Dual Band DMR
TYT just released the first ever image of the upcoming TYT MD-2017 dual band DMR handheld radio. TYT MD-2017 Dual Band DMR Dual time slot for point to... Read more
AOR AR-DV10
AR-DV10 Digital Handheld Scanning Receiver Features : 100kHz-1300MHz analogue & digital modes 10 Digital Modes : TETRA,P25(Phase 1+2),DMR,Mototrb... Read more
Two Repeaters One Antenna Feed Line
“We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solu... Read more
Equipment
SX-2000 QRP HF transceiver with touch screen
SX-2000 QRP HF transceiver “”I had in mind for a long time to realize an HF transceiver complete with all the functions of a commercial ap... Read more
BITX40: A Fully Assembled $45 SSB QRP transceiver
BITX40 Work the world on 40 meters When was the last time you used a radio you had built? The BITX40 board is single circuit board 40 meter SSB transc... Read more
The Leopard Military Radio – 1.6 – 170 MHz
THE LEOPARD is a compact, rugged and lightweight wideband military radio which offers uncompromised communication for tactical missions in the... Read more
MFJ Catalog 2017
MFJ Catalog 2017 – 21.19 MB Request Print Catalog US Residents ONLY Read more
What Is A Digital Ham Radio Hotspot? DMR/DSTAR/C4FM Hotspots Explained
Ham Radio Hotspot “So this is a very popular question among my audience, due to my recent videos explaining some hotspots and reflectors. Hopefu... Read more
App - Mobile
New iOS App Available for The ARRL Repeater Directory ®
The ARRL Repeater Directory ® — introduced this week for 2015-2016 — has a newly launched companion app for Apple® iOS® devices. iPhone®, iPad®... Read more
The World Wide Repeater Directory
RT Sytems and RFinder – The World Wide Repeater Directory bring integrated routing to radio progamming! Once again RFinder and RT Systems... Read more
Satellite Explorer Pro – IOS App
‘Satellite Explorer Pro’ is a tool for tracking satellites in real time. It is not a game. Be sure to visit the support web site http://ww... Read more
Ham Radio License Exam Preparation for Iphone and IPad
Get Your Ham Radio License You are only 35 questions away from getting your Ham radio license. The questions come from a pool of questions publ... Read more
RFinder – The World Wide Repeater Directory now has Jamming Reports!
RFinder now includes the ability to make jamming reports. This is already available in RFinder Android and should be available on iOS devices by Dayto... Read more
Review
Review of MFJ-566 Keys–Low Price, High Performance
“MFJ recently announced two new Morse Code straight keys, the MFJ-566M with a metal base and the MFJ-566P with a plastic base. These small, 3D-p... Read more
Expert Electronics MB1 – Software and Firmware update
Expert Electronics MB1 In this video I demonstrate how to update your Expert Electronics (SunSDR) MB1, for both software (ExpertSDR2) and firmware (as... Read more
The TAK-Tenna Review – A Limited Space HF Antenna
“As you may know, a big percentage of this web site is dedicated to building antennas and not buying them, but sometimes an antenna comes along... Read more
REVIEW: AIRSPY VS. SDRPLAY RSP VS. HACKRF
When people consider upgrading from the RTL-SDR, there are three mid priced software defined radios that come to most peoples minds: The Airspy, the S... Read more
CS-580 DMR Radio Review and a big announcement
CS-580 DMR Radio The CS580 is one of our most exciting new products that we have designed in the past 30 years. This DMR radio is designed specificall... Read more
