The winning article for the December 2017 QST Cover Plaque award is “Upper Level Lows and 6-Meter Sporadic E” by Joe Dzekevich, K1YOW. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the January issue today.
Equipment
Kenwood TS-990S HF/6m Flagship Base Station Being Built
Kenwood TS-990S HF/6m Giving you a rare glimpse behind the scenes at Kenwood’s Communications Division factory at Yamagata, in northern Japan,... Read more
COMTEK ACB-4 Hybrid Four-Square Systems
COMTEK ACB-4 Hybrid Four-Square Systems are phased array Relay Units and Control Consoles that are affordable, simple to install, and easy to use. A p... Read more
Palstar HF-AUTO 1800 – Automatic Antenna Tuner
The Palstar HF-AUTO 1800 watt automatic antenna tuner covers 160 to 6 Meters with a power rating of up to 1800 watts PEP. Hams have enjoyed the... Read more
OM4001A – OM POWER amflifier – 4 KW
OM4001A General description and the advantages of the OM4001A amplifier The OM Power model OM4001A is an automatic power amplifier, designed for use o... Read more
![ColibriNANO Direct Sampling HF/6M receiver [ User Manual ]](https://qrznow.com/wp-content/uploads/2017/06/colibri_nan0_sdr11-190x122.jpg)
VHF
IRN – International Radio Network
The IRN (International Radio Network) is a VoIP/RoIP system using Teamspeak 3 (TS3) that allows radio users to TX/RX using RF around the World using ... Read more
WiRES-X Software & FT-2DR Firmware Announcement
Originally broadcasted live on the Yaesu System Fusion – Official Facebook group. John Kruk, N9UPC, National Sales Manager for Yaesu USA briefly... 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
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
New Video ! Yaesu FT2D – Demo
See More Info about YAESU FT2D Read more
Antenna
![SteppIR DB42 Setup by JA5MHD [ Video ]](https://qrznow.com/wp-content/uploads/2015/03/11038403_10204139844031513_3998216779955717336_n-190x122.jpg)
SteppIR DB42 Setup by JA5MHD [ Video ]
SteppIR DB42 http://blogs.yahoo.co.jp/ja5mhd Read more
ROTATABLE DIPOLE , WARC (12/17/30/60M)
You can hardly see this mini 14 foot rotatable dipole across the street! Its tiny 7-foot turning radius fits on the smallest roof — its perfect... Read more
X700HNA Dual band Base / Repeater Antenna
Special Features: • Fiberglass radomes • Overlapping outer shells for added strength • Strong waterproof joint couplings • Stainless steel har... Read more
HyEndFed 5 band 80/40/20/15/10 Antenna
HyEndFed 5 band for 80,40, 20, (15) and 10 meter. Max. Power : 200 watt PEP. Length : 23 meter. Enclosure : Polycarbonate IP67, 100% UV resista... Read more
Triband Receiving Loop for 160/80/40m by AC0C
“Noise is the constant companion of the stealth antenna warrior. And as the 160m season heats up this winter, the noise level of the house with... Read more
App - Mobile
OpenHPSDR Radio – Android App
Check this new app on Google Play Software Defined Radio. Supports the following hardware: HPSDR Atlas based systems using Metis. HPSDR Hermes... Read more
RFinder – The World Wide Repeater Directory now free trial on Android!
In order to support the proliferation of third party app stores worldwide, we have now released RFinder on Android as trialware! Just go download it f... 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
AmsatDroidFree now open source
AmsatDroidFree satellite tracking App for Android devices is now open source. This App predicts future passes for amateur radio satellites for a speci... 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
Digital Modes
FT4 vs FT8 – A new mode, what’s the difference?
The FT4 Protocol for Digital Contesting by K1JT Read more
Ham Radio HF Digital Modes: Hellschreiber, Feld Hell Tutorial
“Are you tired of PSK31? Are you sick of FT8? Is RTTY just a bunch of contesting anymore? At last, I finally finished this video and started ano... Read more
JTDX – Videos and Guides – FT8- JT65 – JT9 – T10 – WSPR
JT DX JT65 – JT9 – T10 – FT8 – WSPR Guides JTDX_User_Manual_EN_2018_01_08.pdf – (English language by VK7YUM with... Read more
WSJT-X 2.0 – New 77-bit messages information update
“Hi all, Many of us have made many QSOs using the new 77-bit messages on 7.078 and 14.078 MHz. Overall the results have been good — but no... Read more
Quicker-Turnaround Digital Modes in Experimental Stage for WSJT-X Suite
Recent sporadic-E propagation openings on 6 meters and elsewhere have pointed up the need for a digital mode having faster turnaround time than curren... Read more
