“New Ask Dave format with Dave Casler and with Ask Dave Editor Trevor Oman, takes on questions about antennas and analyzers.”
Antenna
A New Way to compare HF antennas
Michael G0POT reviews WSPRlite with DXplorer Wondering how well your antenna works? WSPRlite with DXplorer will tell you… The WSPRlite is a spe... Read more
FX771 MetroPWR Overview
Technical Features METER METROPWR FX771 Coverage 1.8/55 MHz 160/6mt + VHF/UHF (optional) Measure Power AVG, PeP, dBm, R, Z, X , SWR, ReturnLoss Po... Read more
The W8JK is a famous and effective DX Antenna
W8JK by ZR6TXA The W8JK is a famous and effective DX antenna The W8JK Introduction The W8JK is a famous and effective DX antenna, first built b... Read more
Introducing the SDA 2000 OptimizIR
“Today we’re incredibly excited to announce the launch of our first antenna optimization product: the SDA 2000 OptimizIR. This replaces your e... Read more
MonoBeam Yagi MB7 10-15-20-40
MonoBeam Yagi MB7 The MB7 10-15-20-40 is a quad band antenna for 7 MHz, 14 MHz, 21 MHz and 28 MHz with loading coil and capacitive hat for 40m only. T... Read more
Active Wideband Receiver Antenna for your SDR 50-2000MHz
Software Defined Radio (SDR) has finally reached a much broader mass of people, who wanted to play with RF technology, but didn’t find the time... Read more
App - Mobile
SDR Touch demo on Android device using SDRplay RSP
This demonstrates turning an Android Tablet (or Android Phone) into a highly portable comms receiver or spectrum analyzer operating from Long Wave to... Read more
RUMlogNG2Go for iOS version 3.3 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be do... Read more
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
Training fast CW on Android (Koch method)
The user starts by recognizing only two letters, M and K, at high speed (at least 20WPM) on a 5 minutes session. When she or he will be able... Read more
QRZ.com App for Android now in Beta Testing
The updates to QRZ’s Android App, formerly known as QRZDroid have been released and are available to those who are interested in trying it out.... Read more
Remote Vacuum Relay Switch, RK-314
Features The RK-3xx series of switches uses vacuum relays. It is designed to switch coaxial lines in RF systems operating up to 5 kW continuous... Read more
VHF
G3SMT works Cape Verde Islands to set new 144 MHz Tropo record
Cape Verde Islands Back on the 5th of August 2018, Mark Turner EI3KD worked D4Z in the Cape Verde Islands off the coast of Africa to set a new IARU Re... Read more
Alinco DJ-MD5T VHF/UHF 5W DMR HT
Alinco DJ-MD5T VHF/UHF 5W DMR DUal Mode Tier I/II HT Features: DMR Tier I and Tier II 1.77 inch TFT color LCD VFO/MR Switch Output Power Selection (5W... Read more
Amateur Radio Guide to Digital Mobile Radio (DMR) by W2XAB
What is DMR? Digital Mobile Radio (DMR) was developed by the European Telecommunications Standards Institute (ETSI) and is used worldwide by pr... Read more
Cobra Electronics Announces 2015 Line of VHF Marine Radios In Time for Upcoming Boating Season
VHF Marine Radios CHICAGO, IL (May 6, 2015) — Cobra Electronics Corporation, the leading designer and marketer of award-winning marine, safety,... Read more
![Kenwood TH-D74 APRS & DSTAR Radio [ Video ] – English Version](https://qrznow.com/wp-content/uploads/2016/08/14095878_1034440039987414_1994225713345294467_n-190x122.jpg)
BaoFeng BF-F9 +TP Two-Way Radio, Dual Band UHF/VHF Ham 136-174/400-520MHz Tri-Power 1/4/8W
Description： The Baofeng BF-F9+TP is the upgraded version of BF-F9+ with the trip power 1w/4w/8W/. With its 128 channel capacity and up to 12 hours of... Read more
Digital Modes
LoTW Now Accepting FT4 Contact
The latest TQSL update (Config.xml version 11.8), released on May 22, includes FT4 as a submode of MFSK. It also adds AISAT-1 and PO-101 in the satell... Read more
ADIF 3.1.0 was approved today
Dave Bernstein reported this on the DXLabs support group today: ————————————... Read more
FT4 vs FT8 – A new mode, what’s the difference?
The FT4 Protocol for Digital Contesting by K1JT Read more
New FT4 Mode with more 20K spots in few your hours realese
Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1J... Read more
FT4 Video presentation by K1JT
See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start tran... Read more
Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week
A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol bega... Read more
