The US Naval Academy has received IARU satellite frequency coordination for HFsat, a 1.5 U CubeSat with a 15- to 10-meter linear transponder with a 30 kHz bandwidth (uplink 21.4 MHz, downlink 29.42 MHz). The Mode K configuration is reminiscent of the old “RS” series of Russian satellites.
The CubeSat will also carry an APRS digipeater on 145.825 MHz. HFsat is a project to demonstrate the viability of HF satellite communications as a back-up communications system, using HF radios found in a typical Amateur Radio installation or frequently used to support disaster and emergency response communication.
“HFsat will be gravity gradient-stabilized by its full-sized 10-meter half-wave HF dipole with tip masses,” said Bob Bruninga, WB4APR.
A standardized CubeSat VHF communication card based on the popular Byonics MTT4B all-in-one APRS Tiny-Track4 module for telemetry, command, and control is under development at the US Naval Academy. US Naval Academy students are working with Bill Ress, N6GHZ, on the HF transponder card.
Originally broadcasted live on the Yaesu System Fusion – Official Facebook group. John Kruk, N9UPC, National Sales Manager for Yaesu USA briefly... Read more
VR-P25 is a portable, lightweight, Wide coverage RF booster amplifier for Handheld Radio equipment, proprietary and emerging waveforms. Two Way Radio... Read more
Icom, to meet the new standard start released the 260MHz band municipal disaster prevention administrative radio system. Icom Co., Ltd. (Headquarters:... Read more
Vitai VT-5188 1. Frequency Range: VHF: 136-174MHz/245-245.9875Mhz UHF: 400-480MHz 2. Output Power: VHF: 10W/25W/60W ... Read more
Icom UK is pleased to introduce its new ‘regatta pack’, a compact/portable support solution, ideal for providing marine communications for RYA and ISA... Read more
Tropical storm Eta, lingering off the west coast of Florida, was upgraded to a Category 1 hurricane at 1235 UTC today, before weakening to a tropical... Read more
Grounding and Bonding for the Radio Amateur Grounding and Bonding for the Radio Amateur by Ward Silver, N0AX, is now available from ARRL. Proper stati... Read more
AMSAT has announced that the launch of RadFxSat/Fox-1B has been rescheduled for March 16, 2017. RadFxSat will ride as one of the NASA Educational Laun... Read more
“Lets untangle some of confusion over FCC Part Acceptance and radios we use as amateurs. Can a radio like a Baofeng transmit on FRS and GMRS fre... Read more
Morse Decoder decodes Morse code characters through the built-in microphone of your Android device. Morse Decoder can be used by Ham Radio operators o... Read more
Photo:K5TRA EchoLink for iOS version 2.2 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS... Read more
Antenna Calculator The Maidenhead & HF Beam Antenna is a useful utility to calculate the the Maidenhead LOCATION as well as HF Elements’ s... Read more
Check this new app on Google Play Software Defined Radio. Supports the following hardware: HPSDR Atlas based systems using Metis. HPSDR Hermes... Read more
The ARRL Repeater Directory ® — introduced this week for 2015-2016 — has a newly launched companion app for Apple® iOS® devices. iPhone®, iPad®... Read more
“In this video I want to show you the 40M band UltraLight Magnetic Loop Antenna, how to setup it and testing in the real QRP conditions. During... Read more
Stealth 2 Meter Copper J-Pole for your HOA – AF5DN 0 Read more
Rotator Controller RT-21 Azimuth/Elevation Two separate control boards for independent Azimuth and Elevation New crisp OLED displays Separate Point-an... Read more
Specifications Frequency MHz: 21~21,45 – 18,06~18,17 – 14~14,35 – 7~7,3 Active elements: 4 (15m) / 3 (17m) / 4 (20m) / 3 (40m) Gain dBi*: 14,8... Read more
The Ultimate Contest Tribander: fourteen elements delivering superior performance on 20, 15 and 10 meters! Click here to download a PDF of the XR6 pro... Read more
Art, W9SOL, wants to know if his steel building will cause issues with his radio’s performance or improve its performance? Read more
The SSB and RTTY Club of COMO and the A.R.I. (Associazione Radioamatori Italiani) arepleased to announce the details of the 55th “Alessandro VOL... Read more
Chameleon is releasing a new receive only loop, the CHA-RXL. Lets get it on the roof, test it out and talk about why receive loops can be pretty aweso... Read more
On todays episode of Tuesdays with Tim, K3LR and Jeff, KB8ZWT we will discuss bonding and grounding and Band Pass Filters for Field Day! Read more
MagicSDR makes it possible to interactively explore RF spectrum using panadapter and waterfall visualization, demodulate and play AM, SSB, CW, NFM, WF... Read more
Members of the Potomac Valley Radio Club (PVRC) will activate the historic NSS call sign on Saturday, May 8, during the 2021 Armed Forces Day Cross-Ba... Read more
Jeff, KD8KPT, asks about the logistics of putting antennas up in his trees. Read more