Radio/TX Question

[Dan]

Hello,

I am trying to get a phone interconnect to work with my HTX-202
handheld radio. The interconnect has a PTT and Audio Out, but my
radio, like may handhelds, does not have a PTT, only Audio. I fused
the PTT and Audio and that works, but there is a lot of buzzing.
Anyone have a better idea of how I can wire this? Would it help to put
a resistor in between the PTT and Audio?

Thanks,
Dan

 

[Don Bowey]

Hello,

I am trying to get a phone interconnect to work with my HTX-202
handheld radio. The interconnect has a PTT and Audio Out, but my
radio, like may handhelds, does not have a PTT, only Audio. I fused
the PTT and Audio and that works, but there is a lot of buzzing.
Anyone have a better idea of how I can wire this? Would it help to put
a resistor in between the PTT and Audio?

Thanks,
Dan

Build or buy a phone patch to do the audio work, and add a VOX circuit for
keying the PTT circuit.

Don

 

[Travis Jordan]

I am trying to get a phone interconnect to work with my HTX-202
handheld radio. The interconnect has a PTT and Audio Out, but my
radio, like may handhelds, does not have a PTT, only Audio. I fused
the PTT and Audio and that works, but there is a lot of buzzing.
Anyone have a better idea of how I can wire this? Would it help to
put a resistor in between the PTT and Audio?

http://users3.ev1.net/~medcalf/ztx/wire/y727.html