The RTK (precision farming) systems around here are tending to move from 900 MHz to licensed 450 MHz for exactly the reasons people have mentioned. Greater range and reliability. With 900 MHz you don’t pay for the license, but it costs you in needing repeater sites or having dead spots. In addition to not fighting interference in a polluted unlicensed band, half the frequency means better penetration through foliage and around obstacles like buildings and hills.
From: Chuck McCown Sent: Monday, April 25, 2016 3:30 PM To: [email protected] Subject: Re: [AFMUG] Licensed spectrum for utility companies Once upon a time there were UHF splinter channels in the 460 MHz range I think. Every easy to license. I used to run 19.2 kbps on them with analog modems and low modulation index FM. Worked like a champ. I would have to open up and linearize the mod/demod portions of the radio. From: Bill Prince Sent: Monday, April 25, 2016 2:24 PM To: [email protected] Subject: Re: [AFMUG] Licensed spectrum for utility companies PG&E went with 900. However, a conversation with a PG&E rep recently, I found that they decided to actually buy a license down in the 400 MHz region because of the range problems they are having with 900 MHz. They have a hub on the street near our house, and they are still reading the meters by hand because 900 won't reach the hub. bp <part15sbs{at}gmail{dot}com> On 4/25/2016 1:19 PM, John Woodfield wrote: Good luck. They will implement 900mhz. John Woodfield, President Delmarva WiFi Inc. 410-870-WiFi -----Original Message----- From: "Sean Heskett" mailto:[email protected] Sent: Monday, April 25, 2016 4:06pm To: mailto:[email protected] mailto:[email protected], mailto:[email protected] mailto:[email protected] Subject: [AFMUG] Licensed spectrum for utility companies can anyone point me in the direction of what licensed spectrum is available and how to obtain the spectrum for electrical and water utility companies that want to do advanced metering. our local co-op is about to deploy a 900Mhz system and they stated that they couldn't get any licensed spectrum. Any and all advice is greatly appreciate! Thanks, Sean
