800mhz ?

[bayfire300]

Hello are there any 800mhz business band or something like the MURS in vhf?

Thanks

[KG4INW]

Nothing license free like MURS. There have been conventional 800 Part 90 frequencies issued to businesses in the past but I'm not up on what's still available these days.

[Satelite]

Hello:
As already said there are no murs type /intinerant freqs in the 800 MHz band.
Although there are still business band freqs being used in the 800 segment.
Cell phone took a lot of the 800 biz band freqs for use as cell but a section of the 800 biz band was left untouched for biz freqs.
Due to the cell getting and using a chunk of the 800 band it may be harder to get a 800 biz license from the fcc as they may be in use.
Im sure it differs area to area so youd have to check and see if any 800 biz licenses are available to you.
Here in north west iowa id say possibly could but take Los Angeles or New York city id bet not .
Head Shot

[RadioSouth]

Why would you want conventional 800 MHz ? Other than providing additional spectrum it doesn't have any advantage over VHF or UHF. It pretty much started as the overflow band when V,U became saturated.

[MTS2000des]

800MHz is a garbage band. As RS said, it was an "overflow" band for VHF/UHF back when people actually cared about LMR.

(my guess is the OP wants to legally use all those surplussed el-cheapo MTS2000 and MTX8000 portables flooding the market these days)

[Jim1348]

Would 902-928 mHz work? It is legal, license free on 1 watt or less, if I recall correctly.

[bayfire300]

My friend started a Confined space rescue co. and this one site that he is working at has a 300 ft long tunnel and his present uhf portable will not reach to each other. He wants to see if 800mhz will do the trick. The tunnel has a lot of lead pipes run throughout.I am guessing its absorbing the signal.

[Jim1348]

Maybe he should try some Motorola DTR550s.

[escomm]

Why would you want conventional 800 MHz ?

But.. but.. but.. CHP said their new 700MHz would go further than their VHF... and you have more megahertz on 800 so it must be even better... right?

[Bill_G]

My friend started a Confined space rescue co. and this one site that he is working at has a 300 ft long tunnel and his present uhf portable will not reach to each other. He wants to see if 800mhz will do the trick. The tunnel has a lot of lead pipes run throughout.I am guessing its absorbing the signal.

From the FCC perspective - He just have to go through the licensing process to see if there is anything available in his area. 800 is pretty much owned by cellular and public safety services. But! He might get lucky and find one license available.

From the technical perspective - I don't think he's going to get any additional coverage at 800. All major metros are implementing indoor signal strength requirements because they can't get building penetration with their systems. Property managers are installing BDA's and DAS's everywhere to comply. It's a tough nut to crack. Your friend is not the first one to experience these kinds of problems. There is no magic bullet. He should stick to UHF because there is a lot of product out there. He should try different models and different modes (analog, digital, Trbo, NexEdge, iDAS, et al) just to see if any of them offer him a subtle advantage. And it will be subtle.

[bayfire300]

Ok Thanks for all the replies......I will tell him

[KitN1MCC]

maybe try good ol VHF it works for MTA and NYCTA

[MSS-Dave]

Why would you want conventional 800 MHz ?

But.. but.. but.. CHP said their new 700MHz would go further than their VHF... and you have more megahertz on 800 so it must be even better... right?

Damn... This could be a cut-n-paste from Radio Reference!

[Bill_G]

Why would you want conventional 800 MHz ?

But.. but.. but.. CHP said their new 700MHz would go further than their VHF... and you have more megahertz on 800 so it must be even better... right?

Damn... This could be a cut-n-paste from Radio Reference!

This is one of those topics that has no clear answer. The OP has a friend that works in confined spaces. Could be grain silos. Could be sewer inspections. Glamorous work I'm sure. And he wants radios that work in all situations. I don't think he is going to find a single solution, and it's not going to be as simple as use this band over that band because ...

[escomm]

Why would you want conventional 800 MHz ?

But.. but.. but.. CHP said their new 700MHz would go further than their VHF... and you have more megahertz on 800 so it must be even better... right?

Damn... This could be a cut-n-paste from Radio Reference!

More like the CHPers report to the legislature justifying the band change


Though I will admit, they are able to channel steer all the radios in the trunk via the NAC through their pyramid, which is pretty cool since the radios in the trunk cost more than the cruiser itself (ok the are Explorers but you get my point) and ostensibly could directly communicate with CalTrans & CDCR ... if they were actually programmed with the appopriate type 2 systems...