Programming the Juentai (JT-6188Mini and possibly others, such as QYT KT8900)
N0ZYC 2024.05.04.B


to save a simplex frequency to a memory channel:
- change mode to VFO if needed by pressing V/M
- enter frequency via mic or dial
- press [F] for menu
- turn dial to select menu 36 "MEM-CH"
- press [F] to select channel
- turn dial to select a destination channel
- press [F] to save (you are returned to VFO mode)
- press [V/M] to change to memory mode if desired

to save a repeater to a memory channel:
- perform simplex instructions, using the repeater's OUTPUT frequency, but don't save yet
- select menu 13 "T-CTCS"
- press [F] to edit code
- turn dial to select ctcs code
- press [F] to save code
- select menu 38 "SFT-D"
- press [F] to edit shift
- turn dial to select "+" or "-" shift
- press [F] to save shift
- select menu 39 "OFFSET"
- press [F] to edit offset
- use mic keypad to enter offset (typically "00600" for VHF, "05000" for UHF)
- press [F] to save offset
- now select channel and save
- go back to VFO mode and chage the frequency to the repeater's INPUT frequency
- save again to SAME channel
- press [EXT/AB] to exit menu
This saves the repeater as an "odd split", with the tx frequency specified instead of using the offset.
There may be a way to tell it to simply save the shift but I haven't discovered it yet.
Shift works fine in VFO mode, it's just not saved.  Saving it this way it shows split as "+-".
If you don't see "CT" during transmit, it's not transmitting a CTCS tone.

to delete a channel:
- press [F] to enter menu
- turn dial to select menu 37 "DEL-CH"
- press [F] to choose a channel
- turn dial to select a channel to clear
- press [F] to delete the channel
- press [EXT/AB] to exit menu
You may need to delete and re-add a repeater if you make a mistake when adding it, because some features
(like CTCS) cannot be edited on a saved repeater channel.

to change channel label (six characters):
- press [V/M] to change to MEM mode if needed
- turn dial to select channel to edit
- press [F] to enter menu
- select menu 28 "CHNAME"
- press [F] to change name
- press a number on the mic or turn the dial to set the first character
- press [#/LOCK] on the mic to move to the next character
- repeat until all characters in the label are set
- press [F] to save
- press [EXT/AB] to exit menu

to change how (all) channels are displayed:
- press [F] to enter menu
- select menu 29 "CA-MDF"
- press [F] to change display mode
- turn dial to select "NAME", "CHANNEL", or "FREQ"
- press [F] to save display mode
- press [EXT/AB] to exit memu