That’s fine, it’s not the hardware side I need, it’s the rest of it. But I think I’ve found some more suitable implementations for my needs.
Never had a problem with any GPS on miniUART since they settled on a method a few months after the Pi3 was released, it didn’t work before then on the Pi3. But if you don’t use BT may as well switch it off anyway. (still /dev/serial0 will point to it, unless it’s some other OS release of course)
I don’t need PPS, GPS time is fine for my needs, but it’s the coords it would be used for, (‘time’ would be to set its internal clock on a Pi, but only because it can.)
It’s a shame TTN don’t fully supports testing single channel setups and guide people more, it’s quite a barrier to have to go searching and hopefully stumble over something on a good google search.