Due to the recent failure of the Ericsson VHF radio in the ISS Columbus module, the Amateur Radio on the International Space Station (ARISS) APRS packet system that normally operates 145.825 MHz has not been available. Crew member Shane Kimbrough, KE5HOD, has activated an ARISS UHF radio that had been in storage on the ISS, and it is now operational on 437.550 MHz
The packet system uses the same protocol as the VHF system. Operators using the system should adjust for increased Doppler shift at UHF.
The ARISS team is currently working on Kenwood TM-D710GA models to replace all Amateur Radio transceivers on board the ISS. The target date for delivery is late 2017. — Thanks to ARISS
Source:ARRL
Review
Kenwood TH-D74 – Review and Quick Tour (4K) – English version
“This video is a quick tour, but complete, of the Kenwood TH-D74. If you have any questions or comments, don’t hesitate to ask via the comments... Read more
MFJ-4403 Voltage Conditioner
Protects against reverse voltage, over-voltage, voltage transient, and short circuits. Super noise and ripple filtering … Power supply bufferin... Read more
Does Off-Grid Solar Energy Interfere With Ham Radio?
“A lot of viewers asked to see how bad the interference was on my receive when my RV is running off-grid with solar only. In this video I was ac... Read more
Review and test of Buddipole Deluxe Antenna
Buddipole Deluxe Antenna Review This is the testing and review of the Buddipole Deluxe antenna available at Buddipole.com. The Buddipole™ Deluxe Packa... Read more
Antenna
Squalo antenna for 6m by PA3HCM
Introduction – Squalo antenna Adri PA0RDA, a friend of me, is trying to do some DX on 6m for a while now. His antenna position is... Read more
CobWeb Aerial by M0PZT
The CobWeb offers the following features : 20m, 17m, 15m, 12m, 10m operation Compact and easy to handle – Around 8ft square Doesn’t have to be too hi... Read more
Discone Antenna
A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. It is usually mounted vertically, with... Read more
Equipment
IC-9700 – Direct Sampling Brought to the VHF/UHF World
IC-9700 Direct Sampling Brought to the VHF/UHF World Icom IC-9700 strives to be first, to be innovative, and to continue to refine our radios for a ba... Read more
S24-Mini Solar Power for Ham´s
S24-Mini Solar Power Supply This tiny, lightweight solar power supply features an integrated 40WH LiFePO4 battery, and offers plug-and-play convenienc... Read more
Icom IC-9100 Review [ Video ]
George Thomas, W5JDX, of Ham Nation and AmateurLogic.tv provides an in depth review of the Icom IC-9100 Read more
New Controller for ANANs/OpenHPSDR, compatible with all ANAN radios!
New Controller for ANANs/OpenHPSDR, compatible with all ANAN radios! **Dual Receive with independent Panadapter/waterfall **PureSignal Predistortion S... Read more
Recent Posts
Icom IC-705 with the mAT-705 Portable Tuner
“Today I operate the Icom IC-705 at my hunting lease as a portable radio with an End Fed Random Wire antenna from Nelson Antennas, and the mAT-7... Read more
Capture the MAGIC of Six Meters — eBook
Have you ever wondered about the “Magic” of Six Meters? After all, you’ve probably pressed the six meter button on your rig and failed to find any mag... Read more
Eastern Iowans Rely On Ham Radio When Severe Weather Strikes
A derecho with winds of 80 to 100 MPH struck eastern Iowa last August, disrupting power and telecommunications for some 400,000 residents. But, as... Read more
David A. Duncan, K7DUN, Wins the January 2021 QST Cover Plaque Award
The winning article for the January 2021 QST Cover Plaque award is “CW-ELMER – An Advanced Morse Code Learning System,” by David A... Read more
The K7RA Solar Update
We just witnessed 12 consecutive days with no sunspots, which many of us found a bit unsettling. But fortunately Solar Cycle 25 activity returned with... Read more
ISS SSTV 145.800 FM Jan 28-29
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
Contest University to Host Propagation Summit on January 23
Contest University (CTU) is holding a Virtual Propagation Summit on Saturday, January 23. The Zoom-platform event will get under way with introductory... Read more
FCC Notice: What You CAN And CANNOT Do With Ham Radio
FCC Notice: What You CAN And CANNOT Do With Ham Radio Read more