Dear AMSAT member,

Firstly, thanks for sending a congratulatory message to the Radio Amateur Society of Thailand under the Patronage of His Majesty the King (RAST) for the successful launch of the JAISAT-1 Satellite. The JAISAT-1 Project team has been informed by RAST President Dr Jakkree Hantongkom who had direct contacted to German Orbital Systems (GOS) which had informed him of problems relating to the beacon of the JAISAT-1 satellite and currently the JAISAT-1 satellite is in the process of the commissioning of various systems and getting them ready for use.

GOS needs to use the beacon on the frequency of 435.700 MHz first before commissioning various systems for three satellites, namely JAISAT-1, LightSat and EXOCONNEXT, which are all using the Dstar One platform. In order for ease of control and to complete the commissioning of various functions it is necessary for GOS to use the Engineering Frequency of 435.700 MHz while the three satellites have orbits spaced apart allowing for GOS to adjust the operating frequencies separately. For JAISAT-1 the frequency is 435.325 MHz for as has been assigned by the IARU for the control of satellite operations.

For the JAISAT-1 satellite, RAST has received funds from the NBTC's Broadcasting and Telecommunications Research and Development Fund for the Public Interest (BTFP) with support being made in periodic payments. According to the satellite progress report, RAST will be obliged to pay GOS a fee as a guarantee for successfully sending the satellite into space and to achieve this RAST needs to file a report to the BTFP in order to receive the funding for this payment.

Consequently, RAST is making request for urgent assistance from AMSAT members around the world to listen for the JAISAT-1 Beacon signal on 435.700 MHz in GMSK Mobitex 4K8 mode, according to the advice from Mr Vlad Choreny as follows (Frames 1 in row 11):

11 (0x0B) - LightSat UHF1 12 (0x0C) - LightSat UHF2

41 (0x29) - JAISAT UHF1 42 (0x2A) - JAISAT UHF2

51 (0x33) - EXO connect UHF1 52 (0x34) - EXO connect UHF2

The Radio Amateur Society of Thailand (RAST) and the JAISAT-1 Project Team are urgently seeking row data that can be received from all packets worldwide. Please send Row data and KSS files to RAST by email at jaisatonetele@gmail.com so that RAST will be able to report the reception of signals from around the world to submit in a report to the BTFP to demonstrate that the GOS commissioning of all functions is complete up to and including the testing of the Linear Transponder in Mode-J that we will ask AMSAT members to test in the future.

RAST therefore requests AMSAT members worldwide to gather information and send the details to RAST so that the society will be able to submit a report to the BTFP fund so that it will grant the final payment for GOS. With the JAISAT-1 launch, RAST has enabled AMSAT members worldwide to use the JAISAT-1 from now on.

Please be informed accordingly. Sincerely and with respect

Tanan Rangseeprom Project Manager of JAISAt-1