SR-20/SR-60 serial port and GPS integration

[dan-dekalb]

We have a number of SR-60 and SR-20 locators that we've been using for years. I'm finally getting around to trying to integrate GPS into our locating and trying to capture depth. I've seen a couple of people have managed to pull that information out of the serial port, but I haven't found any specific information on commands or baud rates. Anyone out there have knowledge that they would be willing to share?

Thanks in advance

Dan