Dave Swanson, KG5CCI, of Arkansas has achieved another distance milestone on the venerable AO-7 satellite using Mode B (70 centimeters up/2 meters down).
On February 10, Swanson, on Shinnal Mountain west of Little Rock (EM34st), completed a scheduled contact with Eduardo Erlemann, PY2RN (GG66lw), a calculated distance of 8030.895 kilometers (approximately 4979.2 miles), which Swanson said was “way beyond the theoretical range AO-7” and a feat that “the math said shouldn’t be possible.”
The tricky part was that, given their respective locations in the Northern and Southern hemispheres, the window allowing both to access the satellite at the same time was on the order of 5 seconds. After several attempts, they agreed to use quick call sign/grid square reports.
“At 2009 UTC, both stations clearly heard the other’s call and grid, completing the contact,” Swanson said. “It was extremely rapid and very weak, but clear…I think this is approaching the limits of what can be done on AO-7.” PY2RN has postedhis side of the contact, which Swanson called “by far the hardest sked I’ve ever attempted.”
Check the Charts by IK7JWY & IZ5CML for K1N Navassa : Read more
How to Coil Cables How’d you like to deploy 50 feet of coax with just a flick of the wrist. Watch the video below and I’ll show you how. Read Full Article: Video 2 Read more
Kenneth Opskar, LA7GIA will be active from Comoros 14 – 23 September 2015 as D67GIA not D67A as announced earlier. He will operate on 40 – 10m CW, SSB, RTTY. QSL via home call So... Read more
Contesters and DXers are always looking for that competitive edge to magically pull out the weak signal that is either the rare country or multiplier they need to climb up the list. Larger a... Read more
In late September, University of Alaska-Fairbanks researcher Chris Fallen, KL3WX, was attempting to produce an RF-induced airglow — or artificial aurora — using the High Frequency Active Aur... Read more
HRD Software, LLC HRD SOFTWARE, LLC ANNOUNCES DEPARTURE OF CO-FOUNDER, RICK RUHL, W4PC TO PURSUE OTHER INTERESTS Tampa, FL; Dallas, TX; St. Paul, MN — December 31, 2016 HRD Software, LLC., p... Read more
Philippine Amateur Radio Association (PARA) Ham Emergency Radio Operations (HERO) network volunteers were ready for Super Typohoon Haima, which struck the northeastern Philippines on October... Read more
The October Digital QST – our annual DX edition – is now available at http://www.nxtbook.com/nxtbooks/arrl/qst_201610/. ● Giant tortoises and DX from the Galapagos. ● A perilous Islands On t... Read more
The Hamvention® Awards Committee has announced that Valerie Hotzfeld, NV9L, of Crescent City, Illinois, is the 2018 “Amateur of the Year.” The committee — chaired by Michael Kalter, W8CI, an... Read more
The ARRL 2015 Annual Report is now available online. The report covers the five pillars of the League’s mission — Public Service, Advocacy, Education, Technology, and Membership. In addition... Read more
YANTON DM-980 Built for dual-mode (Digital+ Analog) 1000Channels Versatile Voice Call (Private call,group call, all call and emergency call) Digital encryption SMS function AMBE3000++ Vocade... Read more
The Electromagnetic Compatibility Committee of the Radio Society of Great Britain (RSGB) still has wide-ranging questions for UK telecommunications regulator Ofcom concerning new Wireless Te... Read more
Operating mode: A1A(CW)，A3E(AM)，J3E(USB/LSB)，F3E(FM) minimum frequency stepping: 1Hz Antenna impedance: 50Ω Operating temperature range: -10℃ ~ +60℃ Frequency stability: after turn on the ra... Read more
“I went to my friends house to check out his setup and get him up and running on some HF digital modes. A lot of hams are struggling in an HOA with antennas outdoors. I have some plans... Read more
FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store. This App requires a FlexRadio Systems FLEX-6000 Signature... Read more
CRT 2000 Stay tune for more information ! Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fk1n-navassa-worldwide-propagation-charts%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fhow-to-coil-cables-using-the-over-under-method-by-kb9vbr%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fd67gia-comoros%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Ficom-ic-7851-transceiver-arrl-review-qst%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fsstv-goes-very-high-profile%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fhrd-software-llc-announces-departure-of-co-founder-rick-ruhl-w4pc%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fphilippine-hams-team-up-to-confront-back-to-back-typhoons%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fthe-october-issue-of-digital-qst-is-now-available%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fvalerie-hotzfeld-nv9l-is-amateur-of-the-year-as-hamvention-announces-award-winners%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Farrl-2015-annual-report-now-available%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Frsgb-questions-uk-regulator-ofcom-regarding-new-interference-control-regulations%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fxiegu-x5105-qrp-portable-hf-radio-review-and-demo-hf6m%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fattic-mounted-hf-loop-antenna-in-hoa-does-it-work%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fsmartsdr-for-ios-v2-6-2-now-available%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fcoming-soon-crt-2000%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found
in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Farkansas-vhfer-claims-mathematically-impossible-ao-7-mode-b-distance-record%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
