K7RPT Amateur Radio Relay Group, Inc.
Providing amateur radio 144 MHz & 440 MHz repeaters in the state of Oregon
137MHz Quadrifilar Antenna
Antennas/Quadrifilar Helix
This version of the 137MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey Taming the QFH which appeared in the March 1997 RIG magazine. This article contains detailed 3D pictures and models and detailed pictures.
Hamvention QSO Party - something new to do !
The Dayton Hamvention for 2020 has been cancelled. The WWROF, in cooperation with the Hamvention organizers, wanted to create a fun way for people to celebrate the Hamvention experience over the air - the Hamvention QSO Party
Star Trek special event station
Look for special event station GB5ST to be on the air to celebrate 54 years of the hit TV show Star Trek, spin off shows, many Star Trek movies and for the continuing new shows upcoming in the future
BBC Radio Humberside interviews radio amateur
The RSGB report they helped to set up a brief interview on Monday, March 30, with Tony Cobb, G0WJK – Chair of Hull and District ARS – on BBC Radio Humberside breakfast show
Hubnet daily net on the national emergency
Hubnet are running a daily welfare net regarding the national emergency on the m0hoy-l echolink channel node number 973498
Denby Dale amateur radio club goes to Zoom
Our club has moved all it’s meetings to Zoom. Members are excited about our up coming meetings
Special Call ZT1T
Tom Morgan is using the call ZT1T for the period of the 'lockdown' in South Africa. This period also covered the recent SSB WPX Contest
Coronavirus: Portugal's QSL Bureau closed
Due to the state of emergency declared in Portugal due to Covid-19, the services of the Rede dos Emissores Portugueses (REP) association are physically closed, we keep the minimum services on telework
Radio Amateurs of Canada offers new Online Amateur Radio Courses
In response to the current Covid-19 crisis, Radio Amateurs of Canada is pleased to announce that it is introducing two new online Amateur Radio courses so that individuals can upgrade their qualifications while continuing to practise social/physical distancing
Coronavirus: Spain grants special authorization to radio hams
Spain's national amateur radio society URE has talked to their regulator and obtained permission for unlicensed people to use amateur stations during the Coronavirus lockdown
FCC Grants Temporary Emergency Authority to WISPs Operating in 5.8 GHz Band
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 members are NASA Flight Engineer Jessica Meir; Flight Engineer Andrew Morgan, KI5AAA, and Commander Oleg Skripochka, RA0LDJ. The Expedition 63 crew members who are to replace them are nearing an April 9 launch aboard the Soyuz MS-16 vehicle. NASA astrona...
NOAA Satellite Reception with QFH Antenna
Antennas/Quadrifilar Helix
How to receive NOAA weather satellite with a home made QFH Antenna. This project includes some easy and efficient notch filters to suppress noise from FM frequencies
BBC local radio teams up to offer DAB radios to over 70s
BBC local radio has joined forces with loneliness charity WaveLength and a number of manufacturers and retailers to offer free DAB radios to vulnerable people over 70
IRTS Contest News update
In the light of the current public health situation, we have made a number of changes to the arrangements for our contests
ICQPodcast - Why Coax Fails
In this episode, Martin M1MRB is joined by Leslie Butterfield G0CIB, Edmund Spicer M0MNG, Dan Romanchik KB6NU and Ruth Willet KM4LAO to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is - Why Coax Fails
The RaDAR Challenge
The first RaDAR Challenge of 2020 takes place in South Africa from 00:00 UTC to 23:59 UTC on Saturday 4th April 2020
EURAO President's letter about COVID-19
The EURAO President says: Dear members and friends, more than ever, we're witnessing an evolution of ham radio around the world. COVID-19 is just another catalyst that forces us to think wider than before, adaptive and think about changing seriously...
Coronavirus: Ham radio operators practice their social distancing on air
The Gardner News describes how radio amateurs responded to a request to provide 50 N95 masks for ICU physicians
Use of ZM Callsigns during COVID-19 Lockdown
At the suggestion of Paul, ZL4TT, we applied to Radio Spectrum Management for, and have been granted, approval to treat the COVID-19 lockdown period as a “special event.”
ILLW 2020 and COVID-19
Hopefully by the time we get to August and the International Lighthouse Lightship Weekend 2020, things will have returned to some kind of normality. Please rest assured that whatever the situation the ILLW will still be operational
ARRL: US frequencies allocation
Transmitter power limits and frequencies allocation by band
W2QW Raritan Valley Radio Club
Usenet FAQ
Search for Ham Radio in usenet.faqs
W6WGZ Madera County Amateur Radio Club
The Madera County Amateur Radio Club was formed for public service, education, scientific and recreational purposes of amateur radio and to elevate the standards of operating practices and ethics in amateur radio communications. San Joacquin Valley California
Florence Amateur Radio Club
supports three repeaters in the Florence SC area. The Club Callsign, W4ULH authorized by the Federal Communications Commission.
Taming the Quadrifilar Helical Antenna
Antennas/Quadrifilar Helix
The Quadrifilar Helical antenna provides circular polarization and complete hemispherical reception, which is precisely what is needed to receive the polar orbiting weather satellites, and as a 2 meter antenna it will receive horizontal, vertical and clockwise circular polarization.
Helical Antennas -Theory
Antennas/Helical
Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line. It is the simplest antenna, which provides circularly polarized waves.
Amateur Radio guide to Social Distancing
“In the current climate, Social Distancing is very important and Keith G6NHU has put together a reminder for radio amateurs showing how to remember the recommended distance to keep apart”
Ham Talk Live! interviews Frank Bauer, KA3HDO
Ham Talk Live! host Neal Rapp, WB9VPG recently interviewed Frank Bauer, KA3HDO, for an informative look at recent events in the ARISS program
Randy Thompson, K5ZD, named interim WPX Contest Director
Former CQ WPX Contest Director Randy Thompson, K5ZD, has been appointed interim director of the on-air competition following the resignation of Terry Zivney, N4TZ. Zivney had been contest director for the past seven years
Small Scale DAB radio licences extended again
Radio Today report that the ten trial Small Scale DAB multiplex operators have had their temporary licences extended till the end of 2021
Foundation Online Amateur Radio Training
Essex Ham plans to start their next free online amateur radio Foundation training course on April 5
Ham College 63
Extra Class Exam Questions – Part 2
Station restrictions and special operations: restrictions on station location; general operating restrictions; spurious emissions; antenna structure restrictions; RACES operations
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