RE: [tracker2] Interfacing to Motorola GP300
- Many thanks, that diagram had the information I needed (and I'd already looked on Batlabs!).Thanks also to the other posts, a combination has produced a successful result!Jim
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Johannes Bø
Sent: 11 November 2010 18:24
Subject: RE: [tracker2] Interfacing to Motorola GP300
Have a look on this: http://batlabs.com/images/gp300svc.gif
The speaker output is push pull and should not be grounded
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Jim (List)
Does anyone have the details on how to interface an OT to a GP300 handheld?
The PTT is implemented by connecting the earth side of the mic (switch in the Mic actually makes/breaks the circuit), instead of the normal "amateur" way of doing it with a bias.
Could use a relay, but that seems OTT!