My TYT TH-9800 is the 200 channel early version.
Also it's programming cable is a PL-2303 clone, No Win11 compatability.
(Linux & chirp work)

http://www.unixservice.com.au/hamradio/radios/tyt/ten270.csv

ten270.csv is All VK repeater channels from 10m to 70cm some simplex.
First I sorted the frequencies into assending order.
Then, to reduce the number of channels to 200, if a repeater didn't need
CTCSS tones and there was one, on the same frequency that did, the former
was removed. A few were left in.

The Chirp app on Linux here has a quirk, sometimes freezes. Actually as does
the LXTerminal app here too. So best run Chirp as the only app on the desktop.

November 2025
Success on Fedora 42, for me use /usr/local/bin/chirp from chirp-20241227.tar.gz 
(My PL2303 clone USBtoSerial works)

0) Power on the radio. (in normal use mode)
1) Upload from your radio. - a must to get other settings.
2) Import the CSV file.
3) Set the power to High, all channels, now fixed.
4) Download to your radio.

You are done.