According to Masa Arai, JN1GKZ, Japan’s space agency JAXA has announced that three BIRDS-2 CubeSats with APRS digipeaters will deploy from the International Space Station on August 10. The trio — BHUTAN-1, MAYA-1, and UiTMSat-1 — will transmit 30 minutes after deployment. Initial mode should be CW on 70 centimeters; each satellite uses the same frequency of 437.375 MHz.
The normal transmission order is BHUTAN-1 (JG6YKL), MAYA-1 (JG6YKM), and UiTMSat-1 (JG6YKN). Each CubeSat also has an APRS digipeater on 145.825 MHz. Because the CubeSats will be released at the same time, it’s possible that the beacon signals from three CubeSats will interfere with each other as they will turn on at almost at the same time, making copy difficult.
Once on, one of the first things it does is transmit the beacon signal, but the CubeSats are programmed so that each will wait a certain amount of time before transmitting the beacon signal. The first satellite released will be the first to transmit, but it will remain silent for long enough to let other two satellites finish their beacon transmissions.
Source:ARRL
Antenna
Build your own Hexagonal Beam
The hexagonal beam (or known by many as the hex beam) has become a wildly popular antenna. It is a directional antenna that provides great performance... Read more
The most effective way to place a long wire antenna
The most effective way to place a long wire antenna Read more
Five Wire Antennas Vying for Reference Station
Five Wire Antennas Vying for Reference Station Read more
ALEXLOOP HAMPACK SYSTEM
PY1AHD ALEX the ALEXLOOP Portable Magnetic Loop creator working on his home factory. Shown is the new AlexLoop tuner used in the HamPack. The spacing... Read more
Comet HFJ-350M 9-Band Telescopic Antenna , HF Portable
“First look and use of this ultra portable antenna. I think I will be adding it to my Go-Kit because it is so compact. I hope to revisit this an... Read more
VHF
Historic Trans-Atlantic contact made on 144 MHz
A historic contact was made on Sunday the 16th June 2019 when the Atlantic was spanned for the first time on 144 MHz. D41CV on Cape Verde Islands off... Read more
Uniden Announces DMR/MotoTRBO™ Support Coming Soon
Uniden Advances Scanning with Digital Mobile Radio (DMR) Demonstrating our commitment to continually enhance the value and relevance of your investmen... Read more
Icom ID-4100A – 50W VHF/UHF Dual Band
Icom ID-4100A 50W VHF/UHF Dual Band Transceiver Reservation Placing an order for this reservation entitles you to right of refusal on a first-come-fir... Read more
SainSonic RST599 Dual Band 136-174/400-520MHz Two-Way Ham Radio IP66 Waterproof
SainSonic releases its debut radios – SainSonic RST599 two-way radios. This revolutionary design marks the start of an exciting new produ... Read more
![Kenwood TH-D74 – How to do a quick setup [ Video ]](https://qrznow.com/wp-content/uploads/2016/08/th-d74_vhf-190x122.jpg)
Kenwood TH-D74 – How to do a quick setup [ Video ]
Kenwood TH-D74 APRS & DSTAR Radio TH-D74 144 / 220 / 430 MHz Tribander APRS : Using packet-transfer communication to exchange real-time GPS positi... Read more
Review
YL Raisa introduces how to spell Russian Callsigns during a QSO
YL Raisa introduces how to spell Russian Callsigns during a QSO Read more
Jim W6LG Talks About Grounding, Bonding, Earthing, Shielding and Protecting
What are grounding, bonding, earthing, shielding and protecting in the amateur radio station? This is Part 1 of a series of videos. Should you run a g... Read more
Airspy HF+ and SpyServer streaming FFT and Audio data to an Android watch
Airspy HF+ and SpyServer streaming FFT and Audio data to an Android watch. @mm6dos Took the concept a step further! #sdrsharpinside pic.twitter.com/bW... Read more
Tips on Operating Linear Amateur Radio Satellites (Part 2)
Tips on Operating Linear Amateur Radio Satellites (Part 2) Read more
News
Home but never alone: Celebrating World Amateur Radio Day
Image credit: Otava Tuomi. Early last year, when the outbreak of coronavirus (COVID-19) first pushed much of the world into lockdown, one traditional... Read more
National Science Foundation Funds Creation of Research Lab at Alaska’s HAARP
A 5-year, $9.3 million National Science Foundation (NSF) grant will allow the University of Alaska Fairbanks (UAF) Geophysical Institute to establish... Read more
St. Vincent Radio Amateurs on Alert During Volcano Emergency
Donald de Riggs, J88CD, on the Caribbean island of St. Vincent, says that on April 13, the 42nd anniversary of the 1979 eruption of the La Soufriere v... Read more
Can You Cook A Hotdog With Ham Radio?
“I’ve always been facinated by the physical affects of RF. Today, a light experiment testing if can cook hotdogs with RF. The test incorpo... Read more
Updated Radio Frequency Exposure Rules Become Effective on May 3
The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The... Read more
![Ham Fair 2015 – Tokyo – Japan [ Video ]](https://qrznow.com/wp-content/uploads/2015/08/10984611_500529533435333_3509911180292586052_n-265x168.jpg)
