- Why did you delete the Name field? I would find this very helpful for
organizing and editing the data in my .CVS file. From our previous email conversation, I understood you were going to retain it in the CSV file and only drop it when writing data to the dual_band.dat file for uploading into the radio?
The UV-3R doesn't support names, so that column shouldn't be displayed when editing such a file. It's still supported in CSV, of course.
- Vero/Baofeng uses one "menu" for manually setting the Tx-Code
(transmitted CTSS or DTCCS code) and a second "menu" for manually setting the Rx-Code (received or SQL tone code, either CTSS or DTCCS).
Yes, but almost all ham radios only support one code (for TX and RX) at a time. CHIRP was designed with this in mind and thus adding support for a split code is non-trivial.
- Is a repeater operator precluded from selecting different CTSS or
DTCCS codes for Rx and Tx?
Yes, at the moment.
- Is a repeater operator precluded from selecting CTSS for the user's
Tx Code and DTCCS for the user's Rx Code (or vice versa)?
At the moment, yes. Some of the Ham radios support a "cross mode" that lets them use CT and DT for RX and TX (or vice versa). I can see about enabling the UV-3R driver for that if it's important to you.
- Can an operator set a repeater up to use DTCCS on what it receives
(the user's Tx Code) and transmit without a code?
No.
I don't see where the UV-3R uses the DTCS Polarity information at all; it does not appear to be an option as I read my .dat file.
Yes, it can. When you're entering a DTCS code on the front panel, press the menu button and it will change from N (normal) to I (inverted).