700/800 Motorola Band plan

[nick1427d]

I need some clarification regarding any of the current P25 motorola digital radios. I've noticed in the spec sheets that they are designed for a bandplan of 764-870mhz. Can you transmit on that entire band with one radio?

[Thunderknight]

They will do both 700 MHz and 800 MHz narrowband channels (talkaround and repeater input segments).
I can't say as to whether they will do the ENTIRE segment (meaning non-LMR parts, such as cellular blocks...but I kind of doubt it).

[nick1427d]

Let me clarify. Near me there is some question if radios carried by departments are capable of operating that entire 764-870. The reason is, there are systems here in my area, that have "800" towers and "700" towers. Tower A has a CC of 855.xxx and Tower B has a CC of 770.xxx. Can they use one radio?

[Chauffeur6]

They will operate on both 700 and 800 MHz, trunked systems as well as conventional.

I would get away from using the phrase "the entire band", because that implies that the radios can transmit and receive on any frequency between 764-870 MHz, which of course is not true. They can only transmit and receive on the frequencies authorized by the FCC within that 106 MHz block of spectrum.

So, if you're asking "Hey, do these radios really work on both 700 and 800 MHz systems within a single radio model?", the answer is yes.

[nick1427d]

Thanks guys.

[nick1427d]

Another quick ?

Will all the radios on a trunking system transmit on the CC frequency to the controller or does the radio pick one of the other frequencies in the system. Meaning is the controller only waiting for a radio to transmit on the CC?

[KS4VT]

While the XTS3000 and Astro Spectra can be flashed for 9600 P25 trunking, they will not do 700 MHz.
Only the Astro25 series, that being the XTS/XTL 1500, 2500, 5000 and the APX series, will do 700 and 800 MHz.

Also the Sprint NEXTEL RB replacement radios in their unmodified form will not do 700 MHz unless the capability is negotiated ahead of time and would be flashed that way.