ah very good
I am an occasion hobbyist
But dug out an adl vantage from the back office room. Looked at the specs.
35w max, under 450mhz. Cool
Can program to broadcast call sign every 10 minutes. Cool
The sp80’s have their own 2watt radios as part of the unit. Does this apply to those as well?
as in, each gps head unit needs its own license assigned to it to transmits corrections?
as in, each gps head unit needs its own license assigned to it to transmits corrections?
My experience is with amateur radio and Civil Air Patrol, which is treated as part of the military. I'm only slightly familiar with commercial licenses. For amateur, you can operate as many transmitters as you want, as long as they are all under your control. Being under your control is not precisely defined, but if you could drive to it and turn it off within some reasonable time, like 10 minutes or an hour, I would think that makes it under your control. For the military, it isn't even regulated by the FCC, it's regulated by the NTIA. I've read a few licenses for the Red Cross, and they contained information about the total number of transmitters covered by the license.
But dug out an adl vantage from the back office room. Looked at the specs.
35w max, under 450mhz. Cool
If it doesn't broadcast narrowband (12.5 kHz) you'll be in violation.
"As of January 1, 2013, all public safety and industrial/business land mobile radio systems operating in the 150-174 MHz and 421-470 MHz bands were required to cease using 25 kHz efficiency technology and begin using at least 12.5 kHz efficiency technology."
@jim-frame If the equipment was operated by a hobbyist under amateur rules, the narrowband requirement would not apply. That wouldn't apply to many members of this board, but it's reasonable to guess that as equipment gets older, it's more likely to be operated by a student or hobbyist.
Looks like adl vantage pro can do 25 or 12.5khz
so for experimentation purposes, I’m fine.
if I get it going and start to use it for work, I’d need some other kind of license I’m unaware of at this moment.
I'm not up on the permissible data modes, nor many of the other rules for amateur radio, but I'd be very cautious and learn those rules before putting this on the ham bands.
Most of the permitted uses of those bands are for communication between two different licensed parties, which you would not be doing.
I get it,
430-450 is a pretty wide spectrum, from what I’ve listened to around here
For running experiments and such, I’d listen with an HT to see what’s free and go for it.
Surveypro has a list of frequencies in there already all over that spectrum.
I don’t think most people even listen to see what’s free
but I understand what you’re saying
@native1 In the US, the 420–450 MHz band is allocated: in the Federal allocation table, to the radiolocation service (e.g. certain radars, such as the Air Force Space Command's PAVE PAWS installations), and in the non-Federal allocation table, to the amateur radio service. Any other uses are illegal. And for licensed amateur radio operators, one-way communications (such as from a GNSS base to an RTK rover) are generally prohibited. There are certain, specific exceptions, such as allowing beacons for the monitoring of propagation conditions. As already noted, the amateur radio service (Part 97 of the FCC regulations) is for amateur use, not for anything business-related. The FCC regulations go even further, prohibiting in the amateur radio service: "Communications, on a regular basis, which could reasonably be furnished alternatively through other radio services." For something like a one-way GNSS data link, the FCC is going to say that the private land mobile service (Part 90 of the FCC regulations) is such a service.
Note that among amateur radio operators with their varied areas of interest, there are those who enjoy and are skilled at radio direction finding, including tracking and identifying people using the amateur bands in violation of the rules, and then reporting them to the FCC. The FCC does indeed have a track record of levying fines of thousands of dollars against licensed amateurs operating improperly and against unlicensed people who are operating at all in the amateur bands. And remember, if we're talking about an RTK radio link, you're advertising where your base is located, so you can be found even more easily than with traditional radio direction finding.
Thinking that you're allowed to use the amateur bands for arbitrary purposes under the guise of "experimentation" is a mistake. If you don't want to make the effort to get licensed in the private land mobile service, then stick to Part 15 equipment, such as LoRa radio modules, for experimentation.
It is quite alright
the talk is as if I’m stepping on voice comms while “using my amateur license” for gps work
no,
I’m turning on gps head units, configuring radios, and seeing if things work with the software and data collectors we have
Surveypro has a lot of programmed frequencies in it for corrections between 440-450. Any normal user would chose any of those
these gps units and radio were purchased from an authorized local dealer maybe 5 years ago.
I was given the ok to get them up and running again .
I have an amateur radio license, which apparently is not usable in this situation, and has triggered the federal authorities.
all kidding aside, I will look into the license that was set up or purchased for these units…..
