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.
Adjustable 1/4 wave antenna – homebrew version Read more
Request for free an Azimuthal Map for any place in World: http://ns6t.net/azimuth/azimuth... Read more
Antenna Rotator System is the most popular and universal engine management antenna rotator. With this new generation that includes a USB port,... Read more
“Magnetic Loops” is the topic of the latest (July 28) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Engine... Read more
The Tactical Delta Loop antenna (CHA TDL), is a portable High Frequency (HF) antenna specially designed for transportability, quick setup, a... Read more
What it’s all about A modern APRS app for iOS users, with models detection, frequencies detection, C4FM highlight… More features Receive l... Read more
“RFinder has been the ‘Social Repeater Directory’ for a while now with its support of repeater check-in postings to APRS and... Read more
Features The RK-3xx series of switches uses vacuum relays. It is designed to switch coaxial lines in RF systems operating up to 5 kW continuous... Read more
Marcus, DL8MRE announces that release of SmartSDR for iOS v3.9.12 is now available for download or update from the Apple App Store. SmartSDR is a full... Read more
Download NASA Sounds Here’s a collection of NASA sounds from historic spaceflights and current missions. You can hear the roar of a space shuttl... Read more
Connect any way round to automatically identify and measure a wide range of semiconductor devices. The DCA55 will automatically identify the type of t... Read more
Description Similar in appearance and operation to our standard Model 81060 Wattmeter, the Model 83060 converts from Average Reading to Peak or... Read more
Description The MX1, AA1, VO1, and TX1 modules are wired into a band-switching 80-40 meter CW transceiver. Front panel controls: On-off, Transmit-Rece... Read more
MFJ-566M, $29,95 Red/Black Micro Morse Code Key with aluminum base. Liquid smooth and shielded steel ball bearings. Hardened steel pin rotation and st... Read more
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
The Volunteer Monitor (VM) Program is a joint initiative between ARRL and the FCC to enhance compliance in the Amateur Radio Service. This is the Marc... Read more
ARISS-USA, a Maryland nonprofit corporation, has earned recognition from the US Internal Revenue Service (IRS) as a Section 501(c)(3) charitable, scie... Read more
Updated band plan valid: from 4 April 2021 Contest Zone (CW and SSB) Uplink area 2400.370 – 2400.490 MHz Downlink area 10489.870 – 10489.990 MHz Of co... Read more
How to use an automatic antenna tuner with the Yaesu FT-891. In this video I show you the steps to set up and configure the LDG Z11 Pro II auto tuner... Read more