Categories
Ham Satellite news

CAS-10 Information

Info from AMSAT bulletin board and Alan Kung BA1DU:

China CAS-10 Ham Radio Satellite to Launch in November

CAMSAT reports the CAS-10 (XW-4) amateur radio satellite with a V/U linear transponder, is expected to be launched to the Tiangong Space Station on November 7, 2022.

On the AMSAT bulletin board Alan Kung BA1DU posted:

The CAMSAT CAS-10 (XW-4) amateur satellite has been shipped to the Wenchang Satellite Launch Center in Hainan China, and has been installed in the Tianzhou-5 cargo spacecraft, which is scheduled to be launched on November 6 using the Long March 7 launch vehicle to China Tiangong Space Station.

The CAS-10 (XW-4) satellite will deploy from the space station into its own orbit around December 15, and the amateur radio payload will be operational immediately after that time. The specific deployment time and satellite orbit TLE will be announced later.

The IARU satellite frequency coordination page reports:

An 8U CubeSat approx 228 x455x 100mm 12kg Mass. A follow on mission from CAS-9 and also known as Hope-4 (XW-4) Carrying a V/U Mode Linear Transponder, a UHF – CW Telemetry Beacon, a UHF – AX.25 4.8k/9.6kbps GMSK Telemetry downlink and a space camera.

  1. CAS-10 carries a VHF uplink and UHF downlink linear transponder with a bandwidth of 30kHz. This transponder will work all day during the life cycle of the satellite, and amateur radio enthusiasts around the globe can use it for two-way radio relay communications.
  2. CAS-10 carries a camera, and the pictures it takes are stored in the flash memory on the satellite, we have designed a simple remote control system based on DTMF, and amateur radio enthusiasts around the globe can send DTMF commands to download the camera photos.
  3. CW beacon uses Morse code to send satellite telemetry data, which is also a feature that is widely welcomed by amateur radio enthusiasts.

Downlink frequencies for VHF/UHF linear transponder 435.180 MHz, for UHF CW telemetry beacon 435.575 MHz and for telemetry 435.725 MHz. Also an uplink for the transponder 145.870 MHz have been coordinated.

[ANS thanks Southgate Amateur Radio News for the above information.]

Categories
Telemetry

BLUEWALKER-3 telemetry 2022-09-28

BLUEWALKER-3 telemetry over Sollentuna/Stockholm. Very strong at 437.500 MHz but only one decode with SoundModem. It could/should be more.

Categories
Hamradio from ISS

Current ARISS status september 2022

This is the current ARISS status according to ANS-268 and Charlie Sufana, AJ9N.

ARISS Radio Status

Columbus Module radios:
IORS (Kenwood D710GA) – STATUS – Configured. Default mode set for cross band repeater (145.990 MHz up {PL 67} & 437.800 MHz down).

* Powered OFF for Soyuz undocking on September 29. OFF Sep. 28 about 09:00 UTC. ON Sep. 30 about 12:30 UTC.
* Capable of supporting USOS scheduled voice contacts, packet and voice repeater ops.

Service Module radios:
IORS (Kenwood D710GA) – STATUS – Configured. Default mode set for packet operations (145.825 MHz up & down)

* Powered OFF for Soyuz undocking on September 29. OFF Sep. 28 about 09:00 UTC. ON Sep. 30 about 12:30 UTC.
* Capable of supporting ROS scheduled voice contacts, packet, SSTV and voice repeater ops.

The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html

The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html

Scheduled ARISS Contacts

Amur State University, Blagoveshchensk, Russia, direct via TBD

The ISS callsign is presently scheduled to be RSØISS
The downlink frequency is presently scheduled to be 145.800 MHz
The scheduled crewmember is Sergey Prokopyev

Contact is go for Mon 2022-09-26 08:20 UTC

New England Sci-Tech, Natick, MA, telebridge via ON4ISS

The ISS callsign is presently scheduled to be TBD
The downlink frequency is presently scheduled to be 145.800 MHz
The scheduled crewmember is Bob Hines KI5RQT

Contact is go for: Tue 2022-09-27 18:30:39 UTC 89 deg

Watch for Livestream at https://www.youtube.com/watch?v=hdxnD8uF8t0

Aznakaevo School TBD, Aznakaevo, Republic of Tatarstan, Russia, direct via TBD

The ISS callsign is presently scheduled to be RSØISS
The downlink frequency is presently scheduled to be 145.800 MHz
The scheduled crewmember is Dmitry Petlin

Contact is go for Sat 2022-10-01 13:50 UTC

Categories
Ham Satellite news

Tracking Artemis-1 with PstRotator

Thank you Codrut YO3DMU of PstRotator for the following info:

You can use the DSN module of the PstRotator program for Artemis-1 tracking. The program automatically download the necessary files from Horizons and use them to control the rotator and the radio with Doppler corrections.

At this moment the ephemeris are not yet available, but these will be at a short time after a successfully launch.

You can find here the Artemis 1 mission frequency allocation: https://sgcderek.github.io/blog/artemis-1.html 
The Omotenashi satellite will be interesting as it will use UHF (437 MHz).

Categories
Ham Satellite news

OMOTENASHI to the Moon 29 aug 2022

Info from ANS:

OMOTENASHI Project Shoots for the Moon This Week

OMOTENASHI, a project of the JAXA Ham Radio Club, is a CubeSat which will be launched by NASA SLS rocket, scheduled for August 29. It plans to land on the surface of the moon, and to transmit a beacon in the amateur 70cm band.

OMOTENASHI is one of the EM-1 CubeSat missions which will be launched by the NASA/SLS rocket (EM-1) together with the main mission of ORION experimental module on Monday. JAXA Ham Radio Club is going to utilize the flight demonstration opportunity of the OMOTENASHI mission to conduct the following amateur radio missions:
(i) To conduct technological research with respect to receiving ultra-weak UHF signal from a space probe toward the moon
(ii) To conduct an outreach activity providing amateur radio operators all over the world with an opportunity to try to receive signals from moon region.

OMOTENASHI is a 6U-CubeSat with external dimensions of 239 x 366 x 113mm and an approximate mass of 14 kg.

OMOTENASHI consists of three modules: orbiting module, retro motor module, and surface probe. During the moon transfer orbit, these modules are integrated. When OMOTENASHI arrives at the moon, the surface probe will be separated and conduct semi-hard landing.

OMOTENASHI is actively controlled by ultra-small attitude control system including star tracker, sun sensor, IMU, reaction wheel, and cold gas jet thruster. During the moon transfer orbit, OMOTENASHI may be spin-stabilized due to the strict resources. For further details, please see: https://www.isas.jaxa.jp/home/omotenashi/JHRCweb/jhrc.html

There will be UHF CM/PSK/PM/PSK31 beacons, with 1 watt RF, on both the orbiting module and the surface probe. CisLunar explorer, MIT KitCube and Lunar IceCube are expected to share the same launch.

Orbiting Module DOWNLINK

Frequency
    437.31 MHz
Antenna
    SRR antenna
Polarization
    Linear
Modulation
    beacon, PSK31
Sync Word
    C1 (ASCII code)
Power
    30dBm

Surface Probe DOWNLINK

Frequency
    437.41 MHz
Antenna
    invert-F antennax4
Polarization
    LHCP(, RHCP)
Modulation
    FM, PSK31, PCM-PSK/PM
Sync Word
    C1 (ASCII code)
Power
    30dBm

Amateurs can constantly access the newest TLE from https://bit.ly/3wyopTr This file will be overwritten when we have calculated the next TLE during operation.

[ANS thanks JAXA Ham Radio Club for the above information]


Categories
Changes on amsat.se

How to find articles on AMSAT-SM web

We have done some cleanup in the articles and posts on AMSAT-SM website. The “How to…”-articles and guidelines are now under three submenus:

Some articles can be found under more then one submenu, for example if it covers both “Beginners” and “SDR”.

In news categories you find news in different areas. Some of these posts can also be categorized as an article and also be found under “Articles and guides”.

We also use tags. Let’s say you read a post about IC-705. If you would like to read all posts about IC-705 then click on the tag at the bottom of the post.

Finally, you can of course search in all posts and articles.