[chirp_users] BTech UV-5X3

Jim Unroe
Sun Nov 12 12:58:19 PST 2017

On Sun, Nov 12, 2017 at 3:41 PM, Dave Hartman via chirp_users
<chirp_users at intrepid.danplanet.com> wrote:
> I recently bought a BTech UV-5x3 and found that the Wouxun cable works just
> fine for it...sort of.
> I had to trim away a lot of the rubber/plastic so it fits all the way into
> the radio. On my Win7 machine I had no problem loading frequencies. My Win10
> machine, however, was a different story. It kept replacing the working cable
> driver with the "best" driver that doesn't work at all. So I cracked open
> the USB end and replaced the Prolific interface with an FTDI interface.
> After finding out that the RxD and TxD wires are reversed, I got it going on
> both machines.
> The load from a stock source is a real nice touch!
> --
> Dave - AC2GL

On some boards RxD and TxD means "to RxD" and "to TxD" on the other end.

On other boards RxD and TxD means "I am RxD, hook me up to TxD on the
other end" and "I am TxD, hook me up to RxD on the other end".

To make matters worse, some of the pinouts seen floating around on the
Internet have the same issue. So if the first try doesn't work, swap
the RxD and TxD on one end and try again, as you've already figured

Glad you have it working.


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