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G-5500 Rotor Controller

Network control for your
Yaesu G-5500 rotator.

A controller that connects a Yaesu G-5500 azimuth/elevation rotator to tracking software and to your network. Control it with OrbitLink Ground Station, our own ground station control software, or with Gpredict and other software that speaks GS-232B or EasyComm II. It also adds a web UI and REST API.

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GS-232B + EasyComm II

Serial protocols, switchable at runtime

12-bit

MCP3208 position ADC with 3.000 V reference

Wi-Fi

Web UI, REST and 250 ms WebSocket position updates

DIN pin 7

Powers from the rotator, USB-C as backup

50 × 55 mm

Four-layer board, M3 mounting

USB-C

Serial, console and backup power

Yaesu G-5500DC azimuth and elevation rotator with its control box

Built for the Yaesu G-5500

Yaesu G-5500DC rotator and control box, shown for reference. Image from the Yaesu G-5500DC instruction manual. Yaesu is a trademark of its owner. OrbitLink is not affiliated with Yaesu.

Tracking software

  • Controlled from OrbitLink Ground Station software
  • Also works with Gpredict, using GS-232B or EasyComm II
  • Shortest-path azimuth across the 0–450° overlap

Network control

  • Web UI with live position, go-to and jog
  • REST API and WebSocket streaming
  • mDNS name and wireless firmware updates

Rotator safety

  • 4.5 min continuous duty limit, 2 min cooldown
  • Open-collector motor switches
  • Calibration and settings saved to flash

Position sensing

  • MCP3208 with REF3030 reference, ferrite-fed analog rail
  • Divided, filtered pot inputs
  • Supply voltage on a third ADC channel

Power and wiring

  • TVS, PTC and ferrite on the pin 7 input
  • 4–36 V TPS560430X buck
  • JST XH harness to a panel DIN socket

Build

  • ESP32-C6 with PCB antenna or u.FL
  • Sized for a printed enclosure, panel-access buttons

Running a G-5500 ground station?

Request a quote for your ground station, with or without OrbitLink Ground Station.

Request a Quote Today

Figures are design values or estimates, not measurements. Available for US Government use and as evaluation kits for product developers, software developers and system integrators. Export may be restricted under US export control regulations.