There's a bunch of licenses for UTA Utah Transit Authority on 800 Mhz and I was wondering if they actually use 800, most of the experience has been with UTA on 900mhz using mpt1327 or analog, has anything changed with their radios usage ?
UTA on 800?
- Thread starter enosjones
- Start date
kd7rto
Member
The 900 Mhz mpt1327 operations are long gone, and these 800 Mhz licenses are active. They use, believe it or not, iDEN, the obsolete technology that Nextel shut down.
The look quite distinctive on a spectrum display, somewhat like Bart Simpson's head lol, and I recently found a lot of them with my new antenna at work.
854.1625, 854.2625, 854.3125, 854.4125, 854.4625, 854.6375, 854.7375, 854.7625, 854.8125, 854.8375, 854.8625, 855.0125, 855.0375, 855.0875, 855.3125, 855.3875, 855.5875, 855.6125, 855.6375, 855.6875, 855.7875, 855.9375, 856.0625, 857.0125, 857.0625, 857.0875, 857.6125, 857.8875, 858.0625, 858.0875, 858.5875, 858.6125, 858.6875, 858.7875, 859.1625, 859.7875.
The look quite distinctive on a spectrum display, somewhat like Bart Simpson's head lol, and I recently found a lot of them with my new antenna at work.
854.1625, 854.2625, 854.3125, 854.4125, 854.4625, 854.6375, 854.7375, 854.7625, 854.8125, 854.8375, 854.8625, 855.0125, 855.0375, 855.0875, 855.3125, 855.3875, 855.5875, 855.6125, 855.6375, 855.6875, 855.7875, 855.9375, 856.0625, 857.0125, 857.0625, 857.0875, 857.6125, 857.8875, 858.0625, 858.0875, 858.5875, 858.6125, 858.6875, 858.7875, 859.1625, 859.7875.
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So is it analog or some digital thing that they scanner or anything else can't decode or hear? Like mpt1327 was analog but u could still hear it.
kd7rto
Member
It is digital and unmonitorable. I've never seen any SDR software that can analyze these signals, nor have I seen any hacks for the now useless Nextel "phones" (subscriber units). KD7BA was a Nextel field tech, back in the day. I see him on occasion, so I'll have to ask about what test equipment they used at the sites. (I worked on CDMA cell sites, during the 2G era, and I can say that none of the test equipment we used produced any useful information about how the network functioned, or about the traffic on the network).
I just wondered considering its not updated on the database, but i guess u can't tell what site is what, unless u just guess with the fcc licenses and what digital noise u can hear. But all the old 900 stuff is still on the database and hasn't been changed. My question is if we can flag it that its changed but don't have info since its iDen system or whatever. Cuz currently its still lists the 900mhz info stuff.
I can't help with that system cuz they don't use UTA down here in Carbon County or I'd offer to help. I just was mostly curious more than anything.
