Dinesat 9 Radio Classic V3026c Full 21 Link -

The interface of the Dinesat 9 Radio Classic V3026C is designed with simplicity in mind. Here’s how to navigate it:

+-------------------+      +-----------------+      +-------------------+
|  Antenna Interface|<---->|   RF Front‑End  |<---->|  Base‑band DSP    |
+-------------------+      +-----------------+      +-------------------+
            ^                         ^                         ^
            |                         |                         |
    50 Ω SMA (Tx/Rx)        LNA / PA, Filters          FPGA / MCU Core
            |                         |                         |
            +-------------------+-------------------+-------------------+
                                |   Power Management   |
                                +-----------------------+

| Parameter | Value | |-------------------------|------------------------------| | Enclosure size (W×H×D) | 95 mm × 68 mm × 38 mm | | Weight | 210 g (incl. mounting hardware) | | Operating temperature | –40 °C to +85 °C | | Shock / Vibration | 15 g (10 ms) / 30 Hz – 2 kHz | | IP rating | IP54 (dust‑protected, splash‑resistant) | | Power supply | 7 – 12 V DC (max 5 W) | dinesat 9 radio classic v3026c full 21 link

| Field | Size (bits) | Description | |----------------------|-------------|-------------------------------------------| | Preamble | 64 | 0xAA pattern for clock recovery | | Sync Word | 32 | 0xD0C0C0D0 (identifies V3026C protocol) | | Frame Counter | 16 | Incremented each frame (wraps at 65535) | | Slot ID | 5 | 0‑20 (21 slots) | | Payload Length | 8 | Bytes (0‑255) | | Payload | 0‑2048 | User data (e.g., telemetry, voice) | | CRC‑32 | 32 | Error detection | The interface of the Dinesat 9 Radio Classic

The payload can be segmented across consecutive slots for large packets; the receiving node reassembles using the Frame Counter and a packet‑ID field embedded in the user data. | Field | Size (bits) | Description |

The V3026C divides each 1‑second frame into 21 equal time slots (≈ 47.6 ms each). Each slot can be assigned to a specific node ID (0‑20). Within a slot, the radio operates in either Uplink (Tx) or Downlink (Rx) mode, depending on the global schedule negotiated during network formation.

| Metric | Measured Value | Target / Specification | |----------------------------|------------------------------|------------------------| | Packet Delivery Ratio | 98.7 % (average across all 21 links) | ≥ 95 % | | Latency (one‑way) | 42 ms (mean) + 0.9 ms per hop | ≤ 50 ms | | Throughput per link | 45 kbps (effective) | 50 kbps (raw) | | BER after FEC | 3 × 10⁻⁶ | ≤ 10⁻⁵ | | Power consumption (Tx)| 4.3 W | ≤ 5 W | | Power consumption (Rx)| 1.8 W | ≤ 2 W |

The system maintained a stable 21‑node mesh for 48 hours without manual intervention. Slot‑reassignment due to a node failure (simulated by power‑cycling node #12) was completed within 3 seconds, demonstrating robust self‑healing.