China’s Harbin Institute of Technology is developing a pair of lunar-orbiting satellites — DSLWP-A1 and A2. According to Mingchuan Wei, BG2BHC, DSLWP is “a lunar formation-flying mission for low-frequency radio astronomy, Amateur Radio, and education,” consisting of two microsatellites. Launch is planned in June 2018, to place the pair into a 200 × 9,000 kilometer (approximately 124 × 5,580 mile) lunar orbit.
The Amateur Radio payload on DSLWP-A1 will provide telecommand uplink and telemetry and a digital image downlink. Open telecommand is also designed to allow radio amateurs to send commands to take and download images.
The satellites are 50 × 50 × 40 centimeters, with a mass of about 45 kilograms and are 3-axis stabilized, with two linear polarization antennas. The team has proposed downlinks for DSLWP-A1 on 435.425 MHz and 436.425 MHz; downlinks for DSLWP-A2 would be 435.400 MHz and 436.400 MHz, using GMSK with concatenated codes or JT65B. Harbin Institute of Technology also developed the Lilac series of CubeSats.
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
Cover all HF bands with one single wire and no tuner! to ensure great performance in a wide range of operating conditions. End-fed horizontal wire, an... Read more
PA0NHC – active, capacitive receiving antenna Wideband 30kHz-30MHz Read Full Article: Read more
The CHA SPIDER ASB is an octagon-shaped Antenna Spoke Base designed to allow mounting of four dipole antennas that use the standard 3/8” x 24 stud ant... Read more
AmsatDroidFree satellite tracking App for Android devices is now open source. This App predicts future passes for amateur radio satellites for a speci... 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
Features:i) Send Morse to, and receive Morse from, other users of the app. Restrict usage to your WiFi network, or allow full Internet connecti... 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
‘Satellite Explorer Pro’ is a tool for tracking satellites in real time. It is not a game. Be sure to visit the support web site http://ww... Read more
HF linear amplifier Specifications Frequency : 1.8 ~ 54 MHz, all Amateur Bands including WARC Automatic Band Change: only PTT/TXGND Signal, or with de... Read more
MONDAY, 28 MARCH 2016 “After 2 days aboard the « Antsivia » and almost 2000 qso as /MM, we are now achored near Juan de Nova. As our documents i... Read more
by Lee Drew “I’ve spent a lot of time over the years looking at the designs of ham radio go boxes amateur radio operators have created. T... Read more
Today I take the XPA125 Tuner and put it through its paces with a 9:1 EFRW Random Wire Antenna Read more
RT-100 LDG has announced the RT-100. The RT-100 is a 100 watt coax in / coax out remote tuner designed to be placed near the feedpoint of the antenna.... Read more
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subc... Read more
Josh Nass, KI6NAZ, of @Ham Radio Crash Course talks about what ham radio is, and answers the question…. “Why Ham Radio?” Read more
September 10-14, 2021, the 17th World Championship High Speed Telegraphy was held in Montenegro. The event was organized by MARP (Montenegrin Amateur... Read more