APRS


07/25/2017 Nearly 1,500 Boy Scouts so far have visited K2BSA during the 2017 Boy Scout National Jamboree, taking place at the 11,400-acre Summit Bechtel Reserve in Glen Jean, West Virginia. The event winds up this week. With 47 states confirmed and 125 Radio merit badges awarded thus far, the 42 volunteers at the flagship Jamboree Amateur Radio station are confident they’ll work all US states by the time they sign off on July 27 at 2000 UTC. Eight separate stations are on the air from the Jamboree as K2BSA. On July 24, Roanoke Division Vice Director Bill Morine, N2COP, and […]

K2BSA Nearing WAS from Boy Scout National Jamboree


On December 11 Bristol students launched the UBSED21 high altitude balloon carrying 434 MHz and APRS transmitters. On December 23 it completed its first trip around the world The UBSEDS21 balloon was built from 50 micron thick PA-EVOH-PE multilayer film and is about 1.9 meters in diameter, the payload weight was 34.2 grams. The winter launch means the payload needs to deal with the sun staying low above the horizon during the day. For this reason, sideways facing solar panels were used. After launch the balloon headed east at an altitude of 15.2 km, traveling across Kazakhstan, Mongolia and Japan […]

UBSEDS21 student balloon circumnavigates globe


An Around-The-World balloon carrying 434 MHz and APRS that was built by Bristol students has successfully crossed the Pacific and reached Alaska The UBSEDS21 balloon was built from 50 micron thick PA-EVOH-PE multilayer film and is about 1.9 meters in diameter, the payload weight was 34.2 grams. After launch on December 11, 2016 the balloon achieved a stable altitude of 15.2 km flying in an easterly direction on its potential circumnavigation of the globe. The initial plan was to use UBSEDS21 to contact the International Space Station (ISS) via APRS on 145.825 MHz. However, the VHF radio on the ISS […]

UK 434 MHz balloon over North America



A UK student built balloon carrying APRS and 434 MHz payloads is expected to complete its 2nd circumnavigation of the northern hemisphere on Tuesday afternoon  The solar powered UBSEDS18 was developed by students at Bristol University and launched on Wednesday, August 17. Since then it has traveled in an easterly direction for over 62,000 km and is expected to cross Normandy on September 20. The innovative balloon utilises a LIC1235R 40F li-ion supercapacitor to enable continued transmission after sunset. UBSEDS18https://twitter.com/bristolsedshttp://www.bristol-seds.co.uk/hab/flight/2016/08/17/ubseds18.htmlhttps://tracker.habhub.org/#!mt=roadmap&mz=2&qm=All&f=UBSEDS18&q=UBSEDS18 Richard Meadows M0SBU, who worked on the development of UBSEDS18, took the amateur radio training courses run by the Chelmsford […]

UBSEDS18 around the world balloon


08/10/2016 The September edition of Digital QST is now available at http://www.nxtbook.com/nxtbooks/arrl/qst_201609/. ● Keep an eye on APRS telemetry ● Build an Arduino-based CW trainer ● Try a web-controlled receiver antenna switch ● Learn how to revive your ARES training net …and much more! Enjoy Content You Won’t Find in the Print Edition… • See a video review of the new Comet CAA-500 MkII antenna analyzer. Every issue of QST is filled with the news and features you need to keep active in Amateur Radio. Enjoy this issue!   Source link

The September Issue of Digital QST is Now Available!


In this video Gary Pearce KN4AQ provides the APRS forum presentations given at the 2016 Dayton Hamvention Bob Bruninga WB4APR invented APRS. He’s had plenty of help, but it’s still his show. While most of us use it to show where we are on a map, there are so many more aspects to it that Bob can’t fit them all into a single forum. So this is kind of a ‘greatest hits,’ including my personal favorite: APRS isn’t a vehicle tracking system! At the beginning, Bob asks the audience if anyone “made a Voice Alert contact on the way here?” […]

Hamvention APRS Presentations



  In March, the 434 MHz/APRS balloon UBSEDS14 flew around the northern hemisphere. On Saturday, April 30 a new balloon UBSEDS15 will be launched by University of Bristol Students for the Exploration and Development of Space Richard Meadows M0SBU writes: Another pico launch from Bristol this Saturday, April 30. The launch will be at 0900 ISH. As before the payload is transmitting on 434.600 MHz USB, with an output power of about +6dBm. Each transmission of Contestia 16/1000 will be preceded by 10 seconds of pips and RSID. This payload uses solar panels to generate power. Hopefully the transmission rate […]

UBSEDS15 launches from Bristol Saturday


04/28/2016 RFinder, the creator of a web and app-based directory of Amateur Radio repeaters worldwide, now includes the ability to report radio jamming anywhere. This feature is already available in RFinder’s Android app and should be available for iOS devices by the time of Dayton Hamvention®. Those without a device or subscription can file reports online. Individuals or entities responsible for coordinating anti-jamming activities also can request access to view jamming reports for their area. “Repeater jamming is a problem worldwide, [and] we’ve created a way of organizing anti-jamming activities worldwide,” says Bob Greenberg, W2CYK, creator of RFinder. “We are […]

RFinder — The World Wide Repeater Directory Now Lets Users File Jamming Reports


09/16/2015 Foil party pico balloon launcher Andy Nguyen, VK3YT, couldn’t resist the opportunity during a work assignment on the US West Coast to release a couple more balloons carrying Amateur Radio payloads. Working for a month at San Jose, Nguyen on September 12 released his out-of-sequence PS-54 mission, carrying a solar powered APRS/Olivia payload feeding a 10 mW transmitter, to test the local environment. He thus became the first to launch such balloons in both the Southern and Northern hemispheres. Nguyen described his debut US flight as “zooming right past the San Francisco Golden Bridge at 8000 meters before spending […]

Two Aussie Balloons Carrying Ham Radio Payloads Launched from California



05/28/2015 The Herzliya Science Center is inviting stations with the ability to send compressed APRS packets to take part in testing the Duchifat-1 CubeSat, launched almost 1 year ago by high school students in Israel. The satellite will collect packets worldwide and downlink them from time to time over the Herzliya Science Center’s ground station. Participants must register in advance to have their packets identified on the map. Received packets will be displayed on a map on the Science Center’s website, and QSL cards will be sent via the bureau. The Duchifat-1 sponsors say there is no way they can […]

Hams Invited to Test APRS on Duchifat-1 CubeSat