“The Sun has settled down this week after what looked to be a promising beginning. We had high hopes for region 2703 as it rotated into Earth view, but it has since fizzled and we are now once again with a spotless Sun. The bright region that was once 2703 remains visible and it still shows signs of life, but solar flux remains at solar minimum conditions. This is bad news for amateur radio operators and emergency responders, who were hoping for better radio propagation. As for aurora, there is a small chance this week for shows at high latitudes due to a remnant coronal hole sending pockets of fast solar wind, but things will likely remain quiet at mid-latitudes. However, more chances for solar storming come next week, when a large coronal hole gives us a much better chance for aurora. Catch more details on this coronal hole, learn how region 2703 is affecting amateur radio and GPS operations, and see what else the Sun has in store this week!”
Antenna
Robot Adds New Twist to NIST Antenna Measurements and Calibrations
The National Institute of Standards and Technology (NIST) has been pioneering antenna measurement methods for decades, but a new robot may be the ulti... Read more
The CDAA Antenna and the Wullenweber
A CDAA of which the Wullenweber is a type, consists of a group of omnidirectional antennas symmetrically spaced about the periphery of a circular ref... Read more
A High Efficiency Extended Length Mobile Antenna
By W5JGV I originally wanted an antenna that would not hit everything overhead while driving, since it was to be installed on a van. I came up with an... Read more
HF Antenna Traps V3.0
Version 3.0 of our popular traps are now available. Version 3.0 are supplied with 4 high quality Cornell Dubilier CDV16 RF Mica capacitors for greatly... Read more
How To Use An Antenna Tuner
How To Use An Antenna Tuner Read more
VHF
ID-4100 – Icom Catalog Scan – Japanese
ID-4100 Source: Read more
Juentai JT-6188 VHF/UHF
Juentai JT-6188 Product Description The JT-6188 MINI UV Dual Band Radio provides you with a reliable, clear and efficient communications servi... Read more
Jamboree on the Air (JOTA) Stations Encouraged to Register and File Post-Event Reports
Scouting’s Jamboree on the Air (JOTA) officials are asking JOTA 2016 participants not only to register for this year’s event, but to follow up with a... Read more
VHF /UHF / SHF Distance Records
DX Records VHF /UHF / SHF Distance Records Claimed North American Distance Records as of June 4, 2014. List maintained by Al Ward, W5LUA. Send... Read more
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
App - Mobile
The World Wide Repeater Directory
RT Sytems and RFinder – The World Wide Repeater Directory bring integrated routing to radio progamming! Once again RFinder and RT Systems... Read more
RFinder – The World Wide Repeater Directory now supports Twitter!
“RFinder has been the ‘Social Repeater Directory’ for a while now with its support of repeater check-in postings to APRS and... Read more
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
N1KDO’s LoTW Look – Android
This application allows Amateur Radio Operators to browse and search their Logbook of the World (LOTW) QSL confirmations on their handheld de... Read more
Hamradio Line Loss Calculator for iOS devices
Coax Line from Federico Romano, IW2MVI is a simple and fast app that allow you to calculate the loss of your coax line and calculate power output from... Read more
Equipment
QUADRUS SDR | PHASE-COHERENT MULTI-CHANNEL SDR
The QUADRUS SDR platform is complete ready to use integrated platform for advanced SDR software received implementation. It contains all the el... Read more
MFJ-939 Plug&Play IntelliTuner Automatic Antenna Tuner
MFJ-939 Plug&Play IntelliTuner Automatic Antenna Tuner Plug & Play Auto TunerPlug & Play! You won’t even know it’s there . . . MFJ-... Read more
Loudspeakers for Ham Radio – ICQ Podcast Episode 275
“In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Dan Romanchik KB6NU, Martin Rothwell M0SGL, and Frank Howell K4FMH to discuss th... Read more
Colibri DDC SDR SDR (Software Defined Radio) HF / 6m
ColibriDDC Receiver: This small-size receiver is intended to receive signals covering the HF frequency band 0.09MHz to 55MHz, and also (wit... Read more
YAESU FT-8900R
YAESU FT-8900R 29/50/144/430 MHz FM Transceiver The FT-8900R is a ruggedly-built, high quality Quad Band FM transceiver providing 50 Watts of power ou... Read more
