DMR (REPEATERS & GATEWAYS)
221 DMR Repeaters of which 90% are reported operational.
DMR Key Features
Time-Division Multiple-Access (TDMA) preserves full channel width and divides it into alternating time slots that can each carry an individual call.
Motorola maintains that two-slot 12.5 kHz TDMA-based systems (providing 6.25 kHz equivalency) is more efficient.
This means that two separate conversations can be handled by the one repeater, on the same frequency but on a different "channel".
TDMA technology for narrowband 12.5 KHz (6.25 equivalent-6.25e) provides advantages of:
- feature flexibility
- lower equipment costs
- longer battery life
- spectrum efficiency
Random DMR RepeaterCallsign: GB7CQ
Keeper: Roy Humphreys [G4WTV]
Channel: DVU49 (70CM)
TX Freq: 439.6125 MHz RX Freq: 430.6125 MHz
TX antenna: SIRIO GP365-470C
Colour Code: 4 Connect: BRANDMEISTER
ETCC Region: SOUTH-EAST RSGB Region: 10
Locator [QTHR]: IO90SU
DMR OCCUPANCY PIN MAP DMR-GATEWAYS