With all due respect, my answer was not "incomplete". While it may not be the answer you want to hear, it is legally sound. By way of example, let me tell you about a legal argument that is making its way through the Florida courts....
When a person is arrested in Florida for DUI, they are requested to submit to a breath test on an instrument known as the Intoxilyzer 8000. Based hugely on the results of this test, the person faces a conviction for DUI, possible incarceration, probation, fines and classes. One would assume that such a defendant would be entitled to examine the instrument, know the schematics and be permitted to test it.
Criminal defense attorneys throughout Florida, myself included, have been filing motions for about two years to gain access to the instrument. The manufacturer, CMI, has thus far refused to release anything to us. Our motions have been heard at the county court level and the circuit court level and are now reaching the appellate courts. As of right now, we have not been permitted to purchase one instrument, examine one instrument or test one instrument. In denying our motions, the courts have held that the instrument is tested by the manufacturer and by the state and, as such, the defense bar should agree that it is reliable.
As of this moment in time, your situation is much the same. The GPS unit is tested by the manufacturer and maintained by the state. As of right now, I am not aware of a single defendant that has been permitted to open, examine or test the unit in any way.
As a note, your rights as a probationer are less than those of a person charged with an original crime. A person charged with an original crime is presumed innocent and his charges must be proved beyond a reasonable doubt. Conversely, a probationer has already been found guilty and his violations only need to be proved to the greater weight of the evidence. Meaning, if the DUI defendant has been unable to gain access to the relevant instrument, a probation defendant has little hope of gaining access to the relevant information.
I regret that my answer is unfavorable, but please understand that it would be unfair to you (and unprofessional of me) to provide you with anything less than a truthful response.
Also, several customers have asked how they may direct a question to me in particular. If you specifically want me to assist you in your legal matter, just put "FOR JOSEPH" in the subject line and I will gladly pick up the question as soon as I am on-line.