Garmin International Inc 00861 Manuel D’Utilisation

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 FRS?

Channel scan allows your FRS radio to scan all FRS 

frequencies for signals. After scanning briefly to see what 

channels other users are on, simply set your FRS radios to 

an unused channel and enjoy less interference. For greater 

privacy, some FRS radios have a voice scramble feature. 

This feature causes your message to sound garbled to 

other FRS users that are not part of your group. However, 

it does not guarantee your conversations will be 100 

percent private and secure. Other casual FRS users will 

not hear your messages, but users with similar radios or 

more technically-oriented users can still monitor your 

conversations.

If you are operating in an urban environment or in 

varying terrain, some features (such as canyons or 

mountains) act as obstructions limiting the maximum 

reception range of your FRS radio. The UHF FRS 

frequencies are “line of sight”, meaning that the signals 

do not follow the surface of the earth, but instead radiate 

in a straight line from the transmitting antenna. If there 

is an obstruction between the transmitting FRS radio and 

the receiving FRS radio, the signal will not be received. 

Smaller obstructions, such as trees, cars and even crowds 

of people cause some loss of signal, resulting in reduced 

maximum range. 

The use of a GMRS (General Mobile Radio Service) 

radio requires an FCC license. No license is required in 

Canada to operate on GMRS channels. The operating 

frequency of GMRS ranges from 462.550 to 462.725 

MHz. GMRS radios can use repeater channels (15R–22R) 

and repeater towers to extend the range of the operation. 

A repeater tower simultaneously receives GMRS signals 

on a 467 MHz frequency and then rebroadcasts the 

signal on a 462 MHz frequency. Refer to the “Frequency 

Charts” for a complete list of each channel’s frequency. 

GMRS repeater channels are not approved for use by the 

Canadian government, so they are disabled on Rino 530 

units sold in Canada.  

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1/25/2005   5:01:15 PM