Amateur Radio Payload on Lunar-orbiting 4M-LXS To Transmit Messages from the Moon. Post # 4531.

Source:  TV Technology, dated 26 September 2014.

Reporter:  Doug Lung.

Comment:  Russ Roberts (KH6JRM).

Summary:  With the right equipment, you may be able to receive messages from the moon sometime late next month.

Article excerpts:

The Amateur Radio payload on the lunar-orbiting 4M-LXS spacecraft will carry up to 2,500 thirteen-character digital messages to lunar orbit for retransmission using the JT65B mode on 145.990 MHz.

The mission is scheduled to run slightly longer than eight days, with the lunar flyby occurring about halfway through the mission.  The orbiter is one of the bes models for Beijing‘s new lunar probe Chang’e-5, which will land on the moon, collect samples, and return to Earth.

LUXspace said the 4M spacecraft will transmit continuously on 145.990 MHz (+/- 2.9 kHz) at 1.5 W into a simple quarter-wave monopole antenna.  “Transmission is based on a 1-minute sequence and a 5-minute cycle.  The transmission will start 4670 seconds (77.8 minutes) after launch”.  You will need  the free WJST software to decode the signals.

More details are available on AMSAT UK’s 4M-LXS Lunar amateur radio payload web page and LUXspace’s Manfried Memorial Moon Mission (4M) website.



This will one of Beijing’s most ambitious space probes.  Luckily for amateur radio operators and short wave enthusiasts, the payload will carry an amateur radio transmitter.  I will try to receive these signals with a homebrewed loop antenna.  If the mission is successful, scientists should gain more knowledge of our nearest neighbor in space–our own moon.

For the latest in Amateur Radio News and Events, please check the blog sidebars.  These news feeds are updated throughout the day.

Thanks for joining us today!

Until next time,

Aloha es 73 de Russ (KH6JRM).

4M-LXS Lunar ham radio payload | Southgate Amateur Radio News

Beijing plans to launch a Lunar spacecraft on a journey lasting 196 hours that should take it around the Moon before returning and re-entering the Earth’s atmosphere (4M-LXS Lunar ham radio payload…


On 23 October 2014, 1800 UTC,  The Peoples’ Republic of China will launch  a lunar orbiting spacecraft on a 196 hour mission that will circle the moon and re-enter the Earth’s atmosphere.  The launch vehicle will carry an amateur radio payload known as 4M-LXS, which will transmit on 145.980 MHz, using the JT65 Digital Mode.  You can download a free copy of the JT65 software at:  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

Japanese asteroid mission to carry Amateur Radio.

Source:  Southgate Amateur Radio Club.

A Japanese news report says the asteroid mission Hayabusa 2, planned for a December 2014 launch, will carry  the amateur radio satellite Abyss 2 (Shin’en 2).  The small polyhedron satellite was built by students at Kyushu Institute of Technology and carries a Mode 3 linear transponder for amateur radio communications along with CW and WSJT beacons. Shin’en 2 will have an elliptical orbit around the Sun and will journey through space between Venus and Mars.  Another amateur radio satellite known as ASTSAT2: DESPATCH is also on the launch.  Shin’en 2’s IARU coordinated frequencies include:


437.505 MHz CW beacon; 437.385 MHz WSJT telemetry; an inverting SSB/CW transponder (145.940-145.960 MHz uplink LSB and 435.280-435.260 MHz downlink USB.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

Ham Radio Payload to Circle the Moon: –

Ham Radio Payload to Circle the Moon: A lunar flyby with a ham radio payload transmitting JT65B mode on 145.990 MHz is expected to take place toward the end of this year, giving earthbound radio amateurs the opportunity to receive some…


Here’s the latest update on the 4M-LXS lunar probed to be launched by mainland China.


According to the “ARRL Letter”, dated 14 August 2014, China has announced plans to launch a lunar orbiter carrying a 14 kg, battery-powered payload known as 4M-LXS.  Signals from the amateur radio payload will be transmitted by the free WJST software (JT65 mode) on 145.990 MHz).  You can download the software by Joe Taylor (K1JT) here:  The orbiter is one of the test models for Beijing’s new lunar probe Chang’e-5, which will land on the moon, collect samples, and return to earth.  The orbiter will be launched into a Lunar Transfer Orbit and then perform a lunar flyby before re-entering Earth’s atmosphere after 9 days.  The launch is planned for the end of this year.


Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

Shin-En2 Satellite Linear Transponder Frequencies

See on Scoop.itKH6JRM’s Amateur Radio Blog

The IARU Amateur Satellite Frequency Coordination Panel has announced frequencies for the Shin-En2 linear transponder. Shin-En2 is a 2.85 kg satellite measuring 490×490×475 mm built by students at …

Russ Roberts‘s insight:

If all goes as planned, the Shin-En2 satellite from Kagoshima University in Japan will launch in the 4th quarter of 2014.  The IARU has released the frequencies for this bird:


Coordinated Frequencies–437.505 MHz (CW beacon).  437.385 MHz (WSJT telemetry).  Inverting SSB/CW transponders–145.940-145.960 MHz (uplink LSB).  435.280-435.260 MHz (downlink LSB).


What makes this satellite unusual is its orbit.  According to the IARU Amateur Radio Satellite Frequency Coordination Panel, Shin-En2 will “have an elliptic orbit around the sun and travel to a deep space orbit between Venus and Mars.”  This should be an exciting satellite to monitor.  Aloha de Russ (KH6JRM).

See on

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