Sputnik
October 4 marks the 61st anniversary of the launch by the Soviet Union of Sputnik 1, Earth’s first artificial satellite. The Soviets heralded the launch as a national triumph, and the space race between the USSR and the US began.
Sputnik 1 was a 58-centimeter diameter, polished aluminum sphere sprouting four antennas and transmitting a 1 W signal on 20.005 and 40.002 MHz, putting it within the range of nearly any radio amateur. Orbiting the planet about once every 96 minutes, Sputnik 1 could be seen from Earth. Following the launch, the US National Institute of Standards and Technology’s HF radio station
Scientists studying it gained information about such things as the density of the upper atmosphere, deduced from orbital drag. The propagation
Source:ARRL
Antenna
“After several attempts to build a multiband C-Pole I finally ended up with the Multiband H-Pole. C-Poles for different frequencies on one pole must be fed with separate feedlines over separate current baluns. In a first attempt I fed... Read more
Recent Posts
Amateur & Personal Radio Users Reminded Not to Use Radios in Crimes
Full Title: Warning: Amateur and Personal Radio Services Licensees and Operators May Not Use Radio Equipment to Commit or Facilitate Criminal Act... Read more
Anna Brummer, N2FER, Feted on her 105th Birthday
When she turned 80, Anna Brummer, N2FER, of Fort Edward, New York, predicted she would live to be 100. On September 27, she topped her own forecast by... Read more
ARRL Handbook 2018
The Handbook: a Lifetime of Learning. BONUS OFFER! First Ever ARRL Member Call Sign Badge (details below). The ARRL Handbook for Radio Communications ... Read more
NCDXF is pleased to announce a $50,000 grant to the Intrepid-DX Group to activate South Sandwich and South Georgia Islands in 2016.
“NCDXF is pleased to announce a $50,000 grant to the Intrepid-DX Group to activate South Sandwich and South Georgia Islands in 2016.“ Souc... Read more
Yaesu USA update Feb. 1st, 2019
Update on our current specials through April 30th, 2019; a renewal of a program, Hamcation news for Yaesu, and other items. Read more
Recent Posts
XR44COPA – Copa América 2015
XR44COPA – Copa América 2015 Special Call celebrationof Copa América Chile 2015 Team Chilean Pacific Dx Group worked : XR44COPA 2015 CE3MMT -CE3... Read more
RAC CANADA DAY CONTEST 2014
RAC CANADA DAY Each year on July 1, the anniversary of Canada’s Confederation, Radio Amateurs of Canada sponsors the Canada Day Contest. Amateu... Read more
Listen to your QSO with V47T during the CQWW SSB 2015 contest!
N0w you can listen your QSO in CQ WW SSB 2015 Visit and try: Real Sample: K3LR 160m SSB : QSO found but no audio available 80m SSB : QSO found... Read more
Hamvention® Countdown: With 6 Months to Go, Plans Proceeding Apace at New Venue
With just 6 months to go until Hamvention® debuts at its new Greene County Fairgrounds and Event Center venue in Xenia, Ohio, May 19-21, General Chair... Read more
ARRL National Convention and Orlando Hamcation® Postponed to February 2022
ARRL and the Orlando Amateur Radio Club (OARC) have announced that the ARRL National Convention and Orlando HamCation® — which was to host the convent... Read more
Recent Posts
The K7RA Solar Update
Tad Cook, K7RA, Seattle, reports: Solar activity slowed this week, with the average daily sunspot number declining from 48.9 last week to 33.9 this we... Read more
8-Meter Experimental Station on the Air from the US
WL2XUP is an FCC Part 5 Experimental station operated by Lin Holcomb, NI4Y, in Georgia. It’s licensed to operate with up to 400 W effective radiated p... Read more
Quirky APRS, HG-UV98 Lanch NLH Ham Radio Handheld Review
“Chinese radios have come a long way, many have impressive feature lists, but those features seem to be stuck behind programming or poorly imple... Read more
Product Discontinuation: IC-7851 HF All Band Transceiver
“We are sorry to announce that Icom has discontinued the IC-7851 HF All Band Transceiver. Since its launch six years ago, the IC-7851 has been I... Read more
ISS SSTV Aug 6-7 145.800 MHz FM
Russian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV images on 145.800 MHz FM using the SSTV mode PD-120.... Read more
