Antenna
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
SteppIR UrbanBeam, “Step by Step” Assembly and Installation
SteppIR Antenna This video shows the SteppIR UrbanBeam’s step-by-step assembly and installation in the tower, several hours in minutes. The Urba... Read more
New Antenna 50 and 70MHz – 4 el Moxon
EAntenna 5070MOX Only 86cm (34 inch) boom lenght with 2 elements Moxon in 4m and another 2 in 6m band. The gain is 6,03 dBi in 50 MHz. and 5,95 dBi in... Read more
LOW NOISE EXPLAINED ( LFA Antennas ) by G0KSC
A long time has passed since we have to accept the negative aspects of matching Yagi antennas. With modern software, knowledge and optimisation techni... Read more
App - Mobile
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
Free App Allows Blind Hams to Work PSK31
A free, new app — Accessible Digipan — has been released that allows blind hams to operate PSK31. The download includes the app, audio tutorials, deta... Read more
Antenna Tool App – Android
A tool to help ham radio, CB, and other radio users to create antennas of various types. Calculations available for dipole, vertical (1/8, 1/4, 3/8, 1... Read more
SmartSDR for iOS v1.0.4 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v1.0.4 is now available for download or update from the Apple App Store. This release con... Read more
Digital Modes
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
ZL1BPU Wins June QST Cover Plaque Award
The winner of the September 2015 QST Cover Plaque award is Murray Greenman, ZL1BPU, for his article “FSQ: Fast, Simple QSO.” The QST Cover Plaque Awar... Read more
Release: WSJT-X Version 1.8.0
WSJT-X Version 1.8.0 ” 1. New mode called FT8: sensitivity down to -20 dB on the AWGN channel; QSOs 4 times faster than JT65 or JT9; auto-seque... Read more
ARRL LOTW now accept FT8 Mode
Aug 14, 2017: Update to TQSL configuration file released (config.xml v11.1) — Config.xml version 11.1 has been released. This is an update relea... Read more
Equipment
Xiegu G90 HF 20W SDR Transceiver
Xiegu G90 is a portable 20W HF amateur radio transceiver with an SDR architecture and built-in automatic antenna tuner. The display unit and the radio... Read more
HF Linear 2KW HF2015DX – Chinese by BG5EFD
RF Linear amplifier coverd 1.8-30MHz WARC amateur bands , using Chinese FU728F ceramic tetrodes working at Class AB1 driving power:5-50W output:20... Read more
RM Italy BLA-600 Review with Martin Lynch
The BLA 600 is a wideband compact, fully automatic 500W wideband linear amplifier for the HF bands and 6m, from 1.8 to 54 MHz. Totally ideal for runni... Read more
Review
Chameleon MPAS 2 NVIS (Near Vertical Incidence Skywave) Antenna
“Part 2 of my look at the Chameleon MPAS 2.0 Modular Portable Antenna System. I set the antenna up in the horizontal NVIS (Near Vertical Inciden... Read more
Overview of the Icom IC-9700 SDR VHF/UHF Transceiver
Following on from our initial ‘Introduction to the IC-9700 VHF/UHF/1200 MHz Base Station SDR Transceiver’ video, we have put together a more in-depth,... Read more
RM Italy MLA100 Amplifier Demonstration
“Mark, W8BBQ show the RM Italy MLA100 amplifier to get over 100 watts from a QRP rig. 160 meters through 10 meters plus 6 meters. Allows you to... Read more
3. LDMOS HF AMPLIFIER 100W INPUT 2400W OUTPUT BLF188XR 2 PCS 1.8-54 MHZ
LDMOS HF amplifier 90W input 2400W CW SSB output 1.8-54 MHz This a ready power amplifier. You will need a case and power supply only! Water-cooled h... Read more
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