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Can DMR TDMA work on murs?

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radioty

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Hi all, I had this question for a while now. And I just gotten myself a DMR radio and another one that is on the way. Will it be possible to send voice from the radio to murs without being licensed? Or do I have to get a license to transmit on the murs band? What’s the difference between tier 1 and tier 2. And what power should I have it on? Just in case you are wondering. It is a radioddity GD-77. Should I transmit over the unlicensed frequencies and in case what are the frequencies that are for the unlicensed murs band?

thank you
Radioty
 

brownalan

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From a technical standpoint it is possible to transmit on MURS frequencies with the GD-77.

From a legal standpoint I do not beleive that radio is certified for MURS use, per FCC rules:

§95.2761 MURS transmitter certification
 

radioty

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The last I knew MURS and FRS was analog only.
Tier 1 SIMPLEX
Tier 2 REPEATED
Tier 3 TRUNKED
Note, I’m not using a repeater at all.this is radio to radio using one slot I looked it up and there were forms said it is allowed…
 

KevinC

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Note, I’m not using a repeater at all.this is radio to radio using one slot I looked it up and there were forms said it is allowed…

Maybe you can post links to those places showing t's allowed.
 

kg4icg

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My Alinco DJ-MD5XTG is a part 90 classified radio doing dmr on Ham bands 2m, 70cm, and can be used on MURS, FRS, GMRS in digital and analog, and on other frequencies if licensed for it. Your radio ID is the key. For which my radio can use more then just 1 key, for which mine is setup as amateur use.
 

RaleighGuy

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NO you can not use any digital voice emissions on MURS/GMRS/FRS

47 CFR §95.371 Emission types.
In general, Personal Radio Services stations may transmit any emission type that is appropriate for the permissible uses of the specific service, provided that it does not exceed the authorized bandwidth for that service and is in full compliance with the modulation limits (if any) and unwanted emission limits for the specific service.

(a) Exceptions. In some of the Personal Radio Services, stations may transmit only certain specific emission types. Any such limits are set forth in the emission types rule in the subpart governing that service. See e.g., §§95.971 and 95.2971.

(b) Emission type designators. Emission type designators are defined in §2.201 of this chapter. Designators for emissions commonly used in the Personal Radio Services are as follows:

§95.2771 MURS emission types.
A MURS transmitter must transmit only emission types A1D, A2B, A2D, A3E, F2B, F1D, F2D, F3E, and G3E. Emission types A3E, F3E and G3E may include selective calling or tone-operated squelch tones to establish or continue voice communications. MURS transmitters are prohibited from transmitting in the continuous carrier mode.

DescriptionDesignator
Voice, AM​
A3E​
Voice, SSB​
J3E​
Voice, FM​
F3E​
Voice, PM​
G3E​
Data, FSK​
F1D​
Data, AFSK​
F2D​
Data, PSK​
G1D​
Test, no modulation​
N0N​
 

nd5y

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My Alinco DJ-MD5XTG is a part 90 classified radio doing dmr on Ham bands 2m, 70cm, and can be used on MURS, FRS, GMRS in digital and analog, and on other frequencies if licensed for it.
Equipment that is legal to use on FRS, GMRS or MURS needs Part 95 certificfation not Part 90.
No Alinco DMR radio has Part 95 certification.
Your radio ID is the key. For which my radio can use more then just 1 key, for which mine is setup as amateur use.
None of that makes any sense at all.
 

RaleighGuy

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My Alinco DJ-MD5XTG is a part 90 classified radio doing dmr on Ham bands 2m, 70cm, and can be used on MURS, FRS, GMRS in digital and analog, and on other frequencies if licensed for it.

While it "can be used" doesn't mean it is legally being used.

DMR is 4 Level FSK transmission type

And where in the CFR does it authorize that on MURS/FRS/GMRS?

I only use mine on ham bands.

But you are telling others it "can be used" on MURS
 
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radioty

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I have a screenshot from google from one website and this is what the website says5768C9DE-ED3A-476F-9D55-5D51B80D5ED2.png5768C9DE-ED3A-476F-9D55-5D51B80D5ED2.png
 

radioty

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Do you think it's a good idea to believe google search results fom some random web site instead of actual FCC rules from official government web sites?
I get it now. I’m going to close this discussion.
 
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