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Auteur Sujet: General Mobile Radio Service GMRS  (Lu 208 fois)

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VE2DSK Réal

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General Mobile Radio Service GMRS
« le: octobre 25, 2016, 02:39:14 pm »

General Mobile Radio Service ou GMRS, chose que je ne savais pas..!
   Réal


In United States
,
It should be noted that all GMRS usage is regulated by the FCC and a lisence is required to use this radio along with all other 2 way radios transmitting on the following frequencies:

462.5625 (channel 1)
462.5875 (channel 2)
462.6125 (channel 3)
462.6375 (channel 4)
462.6625 (channel 5)
462.6875 (channel 6)
462.7125 (channel 7)

FRS frequencies ( 467.550 thru 467.725, Channels 15-22) do not require a license to use but are limited to 0.5W transmitting power).

A GMRS license does not require a test like a HAM license does. I believe the cost is around $65 for a 5 year certification. Fines for illegal use can exceed $10,000, so a $65.00 investment is a no-brainer, especially for the function that this unit provides.


In Canada, hand-held GMRS radios up to 2 watts have been approved for use without a license since September 2004.
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VE2AMT Alex

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Re : General Mobile Radio Service GMRS
« Réponse #1 le: octobre 26, 2016, 11:53:57 pm »

Ça sert à quoi le GMRS?  :C

73, Alex
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VE2UGO Hugo

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Re : General Mobile Radio Service GMRS
« Réponse #2 le: novembre 01, 2016, 01:53:59 pm »

C'est plutôt 22 fréquences réparties et communes entre FRS et GMRS.

Channel 1   462.5625 MHz - FRS/GMRS 2 Watts   
Channel 2   462.5875 MHz - FRS/GMRS 2 Watts   
Channel 3   462.6125 MHz - FRS/GMRS 2 Watts   
Channel 4   462.6375 MHz - FRS/GMRS 2 Watts   
Channel 5   462.6625 MHz - FRS/GMRS 2 Watts   
Channel 6   462.6875 MHz - FRS/GMRS 2 Watts   
Channel 7   462.7125 MHz - FRS/GMRS 2 Watts   
Channel 8   467.5625 MHz - FRS 0.5 Watts   
Channel 9   467.5875 MHz - FRS 0.5 Watts   
Channel 10   467.6125 MHz - FRS 0.5 Watts   
Channel 11   467.6375 MHz - FRS 0.5 Watts   
Channel 12   467.6625 MHz - FRS 0.5 Watts
Channel 13   467.6875 MHz - FRS 0.5 Watts
Channel 14   467.7125 MHz - FRS 0.5 Watts
Channel 15   462.5500 MHz - GMRS 2 Watts
Channel 16   462.5750 MHz - GMRS 2 Watts
Channel 17   462.6000 MHz - GMRS 2 Watts
Channel 18   462.6250 MHz - GMRS 2 Watts
Channel 19   462.6500 MHz - GMRS 2 Watts
Channel 20   462.6750 MHz - GMRS 2 Watts
Channel 21   462.7000 MHz - GMRS 2 Watts
Channel 22   462.7250 MHz - GMRS 2 Watts

Au Canada il n'y a aucun coût ou licence pour opérer en GMRS ou FRS.

The use of radio transmitters is regulated by national laws and international agreements. Often radio equipment accepted for use in one part of the world may not be operated in other parts due to conflicts with frequency assignments and technical standards. Some of the roles that the licensed GMRS service fills in the United States are, in other countries, filled by unlicensed or class-licensed services. Generally these services have strict technical standards for equipment to prevent interference with licensed transmitters and systems.

In Canada, hand-held GMRS radios up to 2 watts have been approved for use without a license since September 2004.[15] Typically these are dual FRS and GMRS units, with fixed antennas, and operating at 2 watts on some GMRS channels and 0.5 watts on the FRS-only channels. Mobile units (permanently mounted in vehicles), base stations and repeaters are not currently permitted on the GMRS channels in Canada.

Other countries have licensed and unlicensed personal radio services with somewhat similar characteristics, but technical details and operating conditions vary according to national rules. Many European countries use a similar 8 channel system near 446 MHz known as PMR446, as well as a 69-channel low-power LPD433 which is shared with the ISM band. GMRS equipment that is approved for use in the United States will not communicate with PMR446 radios due to using different frequency ranges.
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