@john-putnam good catch I was under the impression I could use 2 units with internal radios as base rover but that’s not the case, so I need a unit wi...

I’m in Canada, and you just need a radio licence top operate.

What I need is the 4800 gps receiver with internal radio at 460-470 mhz to match what I have!

So I have removed the old connector, no luck identifying it. Attached are only 3 wires, Rx/Tx and power that would have come from the external battery...

@bill93 I don’t know why I thought I wanted RS 233, it is DB9 and I’m guessing they will match at each end?

@bill93 so would the pin numbering match at the other end on the RS-232 I wonder? I think I could build a cable. I have horse 2 pin connectors and all...

@not-my-real-name thanks for the link I will check them out

@bill93 I think you are correct, I think if I can figure out which on of the 5 is unused, hopefully it’s the random on that won’t fit the 6 pin layout...

@landbutcher464mhz that is the 6 pin hirose connector not the 5 pin that this machine has . I’m thinking my only option may be to replace the port wit...