“How high should a dipole be? What happens if it’s too low or too high? We turn to EZNEC antenna modeling software to see that the old rule of thumb of one half wavelength is correct. But there are lots of things going on!”
Equipment
New Russian PA. 2000 Watts . Liquid cooling. Weighs only 14 pounds!
BURST 2000A HF power amplifier BURST-2000A 2200 W PEP output power (SSB and CW) All HF bands, including WARC bands and 6 meters Rated input pow... Read more
Hambuilder HBR4HF 4 Band HF Transceiver
HBR4HF specification Heterodyne 10MHz Xtal filter exciter based on Hambuilder BritX exciter 300-25000Hz audio band pass active filter using NE5532 4 B... Read more
New ! OM Power OM2200HF Amplifier 2.2 Kw
General description of the OM Power OM2200HF amplifier The linear amplifier OM2200HF is designed for all short wave amateur bands from... Read more
Ameritron AL-82 AMPLIFIER – TWO 3-500Z
Ameritron AL-82 Ameritron`s Dual 3-500Z AmplifierThe Ameritron AL-82 Linear Amplifier is designed to give you years of trouble free service at the ful... Read more
Review
Icom IC-7300 vs Yaesu FT-991 80m SSB Comparison
Hear a comparison of the Icom IC-7300 vs Yaesu FT-991 on 80m SSB. Read more
ICOM IC-R30 Scanning Receiver is Announced
Peter Waters G3OJV at Europe’s Ham Radio Store takes a first look at the IC-R30 which is expected in the first half of 2017. ... Read more
Yaesu FT-991 vs FT-991A
Yaesu FT-991A The New FT-991A – HF/50/144/430 MHz All-Mode “Field Gear” Transceiver – Coming October 2016 The FT-991A is the next-generation of the wi... 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
Antenna
Corner reflector antenna
A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies.It was invented by John D. Kraus in 1938.[3][4] It consist... Read more
Engineering the Doublet Antenna
“I made this doublet connector from a piece of 6mm Nylon 66 I had knocking about. Seems easy enough. I just hope the 450 ohm behaves itself and... Read more
3 element 144MHz LFA-Q Super-Gainer Quad Style Yagi
Description A 3 element 144MHz LFA-Q (Super-rigid Quad-style) Super-Light Quad StyleYagi for 144-146MHz The LFA-Q Packs a bigger punch than a traditio... Read more
XR6 | COMPACT 11 ELEMENT 20 /17 / 15 / 12 / 10 / 6 METER MULTI-MONO YAGI
For years InnovAntennas co-owner Bill AA7XT pestered his InnovAntennas business partner Justin G0KSC to design an antenna that would cover 20 t... Read more
App - Mobile
iSDR for Iphone and Ipad
iSDR is a software defined radio application compatible with the iPhone®, iPod touch® and iPad™. iSDR is designed for experimenters, shortwave... Read more
RS-MS1A – Remote Control Android App
Ray Novak and George Thomas show you how to control the ID-51A with the RS-MS1A Android app. Read more
RUMlogNG2Go for iOS version 3.5.2 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.5.2 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be ... Read more
FlexRadio Systems Announces Partnership With DL8MRE – APP for Iphone
FlexRadio Systems and Marcus Roskosch, DL8MRE announced today a partnership to develop, market and sell a client interface application for both iPad®... Read more
News
IARU Represents Amateur Radio at WRC-19 Preparatory Meeting
The International Amateur Radio Union (IARU) represented the interests of the Amateur and Amateur-Satellite Services in Geneva at last month’s second... Read more
Canadian Amateur Radio Interference Case Adjudicated
Interference from what ISED, Canada’s telecommunications regulator, called an individual “operating an Amateur Radio station without proper authorizat... Read more
FCC Cites Amateur Service Rule Violations in Unlicensed Broadcasting Case
An FCC Enforcement Bureau Notice of Unlicensed Operation (NoUO) issued last fall to a California Technician-class licensee for alleged unlicensed FM b... Read more
HAARP Gearing Up for its Spring Research Campaign
Alaska’s High-Frequency Active Auroral Research Program (HAARP) is prepping for its spring research program. The activity will run March 25 – 29. The... Read more
![Individual causing malicious interference triggers parliament petition [CANADA]](https://qrznow.com/wp-content/uploads/2019/03/Electromagnetic-interference-audio-190x122.png)
Individual causing malicious interference triggers parliament petition [CANADA]
On June 6, 2018, Martin Bérubé of Louiseville, Quebec initiated a petition involving a radio station that was “generating interference on purpose”. Th... Read more
![Individual causing malicious interference triggers parliament petition [CANADA]](https://qrznow.com/wp-content/uploads/2019/03/Electromagnetic-interference-audio-265x168.png)
