TH-2000 codeplug

	Ch	Name	Receive	Transmit	Shift	Encode	Decode	Pwr	BW	Step	Scan

Channel 1

Which channels

Use the selected channel only

First channel

Last channel

Everything on this tab changes only the codeplug in front of you. Nothing reaches the radio until you write it.

Set one thing on all of them

Setting

New value

Useful for putting a whole block of repeaters on narrow bandwidth, or setting one power level across an imported list.

Rename

Find this text

Change it to

Move, copy or delete

Land at channel

Checks

Checks look for out-of-band frequencies, duplicates, and frequencies that do not sit on their own tuning step.

Hover any setting for what it does. Every field here was confirmed by comparing real saves from the manufacturer’s software against a radio; bytes nobody has mapped are never written, and neither is any bit outside a named field. Labels marked * are shortened — hover for the manufacturer’s full wording.

Band limits

Load a codeplug to see the band limits.

The two VFOs are the frequencies each side of the display falls back to when you leave the memory channels. They live in their own records past the 200 channels, have no names, and never appear when you scroll.

This radio also carries a 220 MHz slot for each VFO, inherited from a tri-band sibling. It has no such band, so those two are left exactly as they are.

FM broadcast presets

VFO (MHz)

Presets

Thirty-two stored FM broadcast stations, in MHz. Tick a preset to mark it in use; blank the frequency to store nothing in that slot. The per-preset tick boxes are the one part of this block that was inferred rather than confirmed against a radio.

Appearance

Theme

Your choice, the panel width and the transfer options below are remembered on this computer. Codeplugs never are — a stale one reappearing after a refresh is exactly how the wrong thing gets written to a radio.

When talking to the radio

Verify after write Compare before write Auto-backup on read Legacy framing

Verification reads the codeplug back after writing and compares it byte for byte. Comparing first shows you what would change before anything is sent. Legacy framing is for units that use the older frame format.

Serial traffic

Nothing sent yet.

About this tool

The protocol here was recovered by reading the manufacturer's own programming software rather than from a captured session. Read your radio and save that file before you write anything — it is your way back.

The radio speaks USB directly — its microcontroller presents a virtual COM port — so the baud rate is not something worth adjusting if a transfer misbehaves.

If the handshake fails, try Legacy framing: this radio family appears to use two different frame formats with identical commands.

Inverted DCS is the one field known to be uncertain. If polarity comes out backwards, the encode and decode inversion bits need swapping.