GENOAK GMRS Repeater
A repeater simply re-transmits (“repeats”) a 2-way radio transmission, typically at a higher power and through an elevated antenna. This allows anyone who can reach the repeater with their radio to talk to anyone else who can also reach the repeater, even if the two radios are too far apart to directly communicate with each other. It also enables 2-way radios to better communicate around or through obstacles such as terrain, infrastructure and foliage that may block direct radio-to-radio signals as depicted above.
Using a repeater requires a 2-way radio that is “repeater-capable.” GMRS radios noted here are all repeater-capable and will work with the GENOAK repeater when the radio is properly configured. Contact us for help configuring your repeater-capable GMRS radio to work with GENOAK.
For direct radio-to-radio (called “simplex”) transmissions, for example if the GENOAK repeater is not reachable, radio communications may take place on GMRS Channel 18 (462.625 MHz) or any other available channel.
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Oakland GMRS Repeater
GENOAK utilizes the Oakland 600 GMRS repeater operated by the Northern California GMRS Users Group (NCGUG). This Oakland 600 repeater is installed in a hardened building and equipped with a backup battery system that provides three to four days of operation during loss of utility power. Generator backup is also available for longer power outages.
The repeater covers Oakland, Alameda, Emeryville, Berkeley and most other Bay Area cities between Fremont north to Richmond. It is located at 1500 ft. elevation in the Oakland Hills, about 1 mile southeast of the Caldecott Tunnel. For more information, refer to the GMRS Repeater Directory.
GENOAK Backup Repeater
GENOAK also maintains a mobile, backup GMRS repeater that can be setup if the Oakland 600 GMRS repeater is no longer functioning. This backup repeater operates on the same channel and with the same configuration, so GENOAK-configured 2-way radios will continue to work as before. Depending on where the backup repeater can be located, coverage may be reduced, but many Oakland operators should still have access to GENOAK (although more simplex relays may be needed.)