“If you are in the market for a high gain HT antenna for those fringe areas, this may be for you. The Diamond SRH770s is very flexible for portable operations, and will get you into those fringe repeaters so you can finally get on DSTAR DMR and System Fusion”
Length:70cm / Weight:45g, Gain: 2.15dBi (144MHz), 4.5dBi (430MHz), Impedance:50ohms / Max.power rating:10W FM, Connector:SMA-P / Type:3/8wave (144MHz), 3/4wave (430MHz).
http://www.diamond-ant.co.jp/english/index.html
Propagation
Understanding HF Propagation
“Looks at how HF radio signals are propagated via the ionosphere. Includes a description of NVIS propagation, and looks at VOACAP-based propagat... Read more
The K7RA Solar Update – CQ WPX SSB 2020
We saw another week with no sunspots, which were last observed just briefly over two weeks ago on two days, March 8-9. Spaceweather.com reports that s... Read more
VHF
ARRL Suspending Tours and Guest Visits to Headquarters
As part of efforts under way to help protect the health and safety of ARRL Headquarters employees and volunteers from the impacts of the coronavirus,... Read more
International Group to Reactivate the Legendary Yasme VP2VB Call Sign
On Tuesday, March 10, an international group now in New York will set sail to the British Virgin Islands and activate the VP2VB call sign of Yasme fam... Read more
Software
OPENWEBRX VERSION 0.18.0 RELEASED: NEW DECODERS FOR DIGITAL VOICE, DIGITAL HAM MODES
“Hello fellow radio enthusiasts, with great excitement I would like to announce the availability of OpenWebRX Version 0.18.0 as public release.... Read more
Log4OM Release – Version 2.3.0.0
Release note – Version 2.3.0.0 • CAT frequency display is now user configurable for best visual comfort in Settings -> CAT • Added viewable Clublog... Read more
News
COVID-19 Affects Space Station Crew Transition
International Space Station (ISS) Expedition 62 crew is readying its Soyuz MS-15 vehicle for an April 17 departure back to Earth. Expedition 62 member... Read more
FCC Grants Temporary Emergency Authority to WISPs Operating in 5.8 GHz Band
The FCC has granted temporary permission to wireless internet service providers (WISPs) in rural portions of 29 states and the US Virgin Islands to op... Read more
Equipment
A Simple High-Frequency Communications Receiver
See What QST Has to Offer! QST is the monthly membership journal of ARRL. Each issue is your source for equipment reviews, technical tips, projects, n... Read more
Digital Modes
New Summer EURAO Party to Premier FT4
The motto of the new European Radio Amateurs’ Organization (EURAO https://www.eurao.org/) Summer Party https://www.eurao.org/en/node/1045 is... Read more
