I don't know, but I know the trucks that do this meter readings, and they don't slow down. There was even talk of trying to establish communications with their service trucks when on route so they would not have to send a specific meter reader out. The service trucks cover a lot of area, but I don't know the details as to how often or how far they work. -----Original Message----- From: elky-bounce@xxxxxxxxxxxxx [mailto:elky-bounce@xxxxxxxxxxxxx] On Behalf Of Robert Adams Sent: Thursday, July 30, 2009 2:21 PM To: elky@xxxxxxxxxxxxx Subject: [elky] Re: Trip >They drive the spead limit down the street here and the numbers are >transmitted. I talked with our utilities district and a driver >recently, they said it sure is nice and more efficient. I asked, why >don't they just use Satelite if they can do that? I dunnow if these are going to be that type or transmit over the power grid. For those that didn't know they can do internet over the power lines they just have to put a jumper at every transformer to keep the signal going. I'd be impressed if those readers worked fast enough to read with the truck going 30mph. I assume they are using class 1 bluetooth for that as it has a range of about 100 meters which is 10 times class 2 that cell phones have and remote mice and keyboards have class 3 which is 1 meter. Bluetooth and WIFI operate in the same freq range as well. Robert Adams Rules: Please play nicely with others. Rules: Please play nicely with others.