Suggestion for New Transmitter
Suggested by pe2bz on: 2026-10-08 08:27
Citation: Added frame size and detected sync words sofar. https://docs.google.com/document/d/1TBeKRxeJ_VnRyIJ6pCMKUcMdaxnDY9ueOW8uSa20x_w/edit?usp=sharing
Verdict: Approved
Reviewed by pe2bz on: 2026-10-08 08:29
| Satellite | AIST-2T-2 (67254) | YYJY-0635-5567-8703-7935 |
| UUID | E6wG3zCFAJk2LQsd4hq8y3 |
| Description | Telemetry. PCM/PM (BPSK with residual carrier, phase deviation about ±50°), 4800 bit/s, differentially encoded (raw idle fill looks like 0x55/0xAA). After differential decoding: 1136-bit frames (0.2367 s), sync word 0xD17394BD (telemetry mode, 8-bit frame counter at bits 87-94) or 0xD7798A9F (burst mode, 7-bit counter at bits 64-70). Payload format not yet identified. |
| Type | Transmitter |
| Status | active |
| Downlink Low Frequency | 435.850 MHz (435850000 Hz) |
| Downlink High Frequency | 435.850 MHz (435850000 Hz) |
| Downlink Drift | - |
| Downlink Mode | BPSK |
| Baud | 4800.0 |
| Service | Unknown |
| IARU Coordination | N/A |
| ITU Notification | - |
| Unconfirmed | No |
| Field | Previous | Suggested |
|---|---|---|
| Description | - | Telemetry. PCM/PM (BPSK with residual carrier, phase deviation about ±50°), 4800 bit/s, differentially encoded (raw idle fill looks like 0x55/0xAA). After differential decoding: 1136-bit frames (0.2367 s), sync word 0xD17394BD (telemetry mode, 8-bit frame counter at bits 87-94) or 0xD7798A9F (burst mode, 7-bit counter at bits 64-70). Payload format not yet identified. |
| Type | - | Transmitter |
| Status | - | active |
| Downlink Low Frequency | - (- Hz) | 435.850 MHz (435850000 Hz) |
| Downlink High Frequency | - (- Hz) | 435.850 MHz (435850000 Hz) |
| Downlink Mode | - | BPSK |
| Baud | - | 4800.0 |
| Service | - | Unknown |
| IARU Coordination | - | N/A |
| ITU Notification | - | - |
| Unconfirmed | No | No |