I own two motorola DTR 650 models. All DTR radios are Frequency Hopping Spread Spectrum radios ( FHSS). That means their is no designated frequencies per se. It hops through several frequencies at random through the 900mhz band looking for good signal and uninterruption. As for analog signal that's a no. All transmissions are in digital. It uses VSELP; a codec standard from Motorola that is unmonitorable from any scanner year to date. That's why these radios are so secure for what their worth.
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FRS vs GMRS vs 900 mhz radios ( performance)
- Thread starter johnls7424
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scannermanner1
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Ok so theres no way to disable the FHSS ?
Nope no way to disable it. I suggest if you want a digital radio you should invest in a MotoTRBO radio. That will require a business banded FCC license ( yes you need to have a business or use it for those types of purposes) or if your an analog person you can buy a business banded VHF or UHF radio.
scannermanner1
Member
Ok thanks for the info. Just FYI mototrbo can be used on the ham band thus not requiring a business band licence or business
Ok thanks for the info. Just FYI mototrbo can be used on the ham band thus not requiring a business band licence or business
Let's not try to go off topic more than we had. It's against rules & regulations on RR. Thanks
+1 for the Motorola DTR series here. For the DTR410's, I have a dozen, they get about 1 mile range in the city, Seattle. Higher models with better antennas get more than 1 mile, but just a little more. In the suburbs, trees and hills, they get about 1.5 miles. This is the upper limit for the DTR series. No license, secure and loud and clear comms is what I needed, so it works for that.
Several schools have started using these in the area after seeing them with my crews, with a few changes to the programming you can have each radio named for a person, or position, send text messages, and keep it all secure. Software is free also, rare for the big "M".
Several schools have started using these in the area after seeing them with my crews, with a few changes to the programming you can have each radio named for a person, or position, send text messages, and keep it all secure. Software is free also, rare for the big "M".
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