The Garmin Rino 120 GPS accessories comes with a serial cable that can be used for programming the device and sending GPS data to any computer.
Garmin Rino 120 GPS Download
After purchasing, check for updated firmware at garmin.com. The newest firmware helped the start time of my unit (the time it took to find a satellite) and improved its reception capability.
After updating the firmware you will get a solid sat lock from your living room couch.
The FRS radio works well with my other motorola radios, and from my testing the sub channels (0-38) appear to all use the same tones as motorola. The FRS radio has the ability to 'scan' for conversations. This is very useful if you were using it in conjunction with search and rescue (trying to find someone that you knew had an FRS radio unit).
Some Garmin Rino 120 GPS reviewers have commented that when you are driving down the road the unit shows you as being off the road. The reason this happens is because the basemap is VECTOR based (a straight line between points) and there is a limited number of points stored in its memory.
If this annoys you to have your point shown off the road, this device comes with a feature that you can use 'snap to road' or some thing like that. The actual position reported by this is extremely accurate. I have gotten the unit to 9 feet of accuracy which is most helpful for such things as geocaching.