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docs(rotator): name the Green Heron RT-21, which was already supported

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The RT-21 speaks the Hy-Gain DCU-1 command set in its default protocol
setting, and internal/rotator/dcu1 has driven that since it landed —
AP1nnn/AM1 to point, AI1 to read back, over a COM port or over TCP.
Nothing was missing except a way to find it: "Green Heron" sat in a
parenthesis after "Hy-Gain DCU-1", which an operator scanning the list
for RT-21 does not see.

So the dropdown leads with the controller people actually own, and the
hint says the two things that decide whether it works: the RT-21's
protocol must be set to DCU-1 / Rotor-EZ (on GS-232 it belongs to the
GS-232 entry instead), and with the Ethernet option TCP reaches it
directly rather than through a serial-over-IP bridge, which is what the
hint used to imply was necessary.

The package doc now also records what is NOT here: the native Green
Heron protocol is a third command set, with 0.1° readback and a real
stop, and writing it from memory is exactly the mistake this repo warns
about for wire protocols.
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rouggy
2026-09-10 18:58:04 +02:00
parent 72696a5c0c
commit 031fcbd543
5 changed files with 17 additions and 8 deletions
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wiki/Maps-and-Antennas.md
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@@ -42,7 +42,7 @@ one of these.
| **Rotator Genius** (4O3A) | Az | TCP, port 9006 | Native. *Rotator #* picks which of the two the box drives; *Two rotors* adds the second as its own rotor. |
| **GS-232 azimuth** (microHAM ARCO, ERC) | Az | LAN or USB | Set the controller's CONTROL PROTOCOL to *Yaesu GS-232A*. An **ERC** must be in GS-232 emulation, **not** Hy-Gain DCU-1. |
| **ERC-M by DF9GR** | Az + El | USB COM or LAN | The az/el interface for a **Yaesu G-5500** and its relatives. GS-232 emulation, 19200 baud out of the box. Pick this rather than the GS-232 azimuth entry: it is what tells OpsLog the mast has an elevation motor. |
| **Hy-Gain DCU-1** | Az | COM port or serial-over-IP | RotorCard DXA, Idiom Press Rotor-EZ, Green Heron. A DCU-1 is 4800 baud; others may differ — match the controller. |
| **Green Heron RT-21 / Hy-Gain DCU-1** | Az | COM port, or TCP | Also Idiom Press Rotor-EZ and RotorCard DXA. Set the RT-21 to DCU-1 / Rotor-EZ — on GS-232 use the GS-232 row instead. With the Ethernet option, TCP reaches it directly; no serial-over-IP bridge. A DCU-1 is 4800 baud; others may differ — match the controller. |
| **SPID / AlfaSpid** | Az + El (Rot2Prog) | COM port | Native, so PstRotator is not needed in between. See below. |
| **EasyComm II** | Az + El | COM port or TCP | What SatPC32, Gpredict, Hamlib and K3NG firmware speak — the usual choice for a home-built az/el controller. |