Product description The RD625 is a digital repeater designed specifically to provide reliable radio coverage in buildings and tunnels. The RD625 has been developed in accordance with the Digital Mobile Radio (DMR) open ETSI standard and can be operated with either digital or analog signals....
The RD625 is a digital repeater designed specifically to provide reliable radio coverage in buildings and tunnels. The RD625 has been developed in accordance with the Digital Mobile Radio (DMR) open ETSI standard and can be operated with either digital or analog signals.
Highlights – Flexible IP networking
Hytera's DMR repeater can be connected to an IP-based communication network with multiple sites. The roaming function is used to provide radios in this radio network with voice and data services across cells.
Connecting VoIP private automatic branch exchanges
The RD625 repeater provides a connection to existing VoIP telephone systems on the DMR radio network as SIP subscriber. This allows DMR radio subscribers to hold half-duplex conversations with participants from the telephone network. Telephone subscribers have the option of making either individual or group calls in the radio network.
Analog and digital operation with the ability to switch automatically
The RD625 repeater can be operated both in analog and in digital mode and is completely compatible with analog systems currently in use. The device can automatically change between digital and analog mode depending on the type of receiver signal, saving both time and money by eliminating the need to configure frequencies and channels manually.
Automatic AC/DC switchover
The integrated power supply of the RD625 automatically chooses between alternating current and direct current. This makes it possible to provide a fail-safe radio signal by connecting the repeater to an independent source of direct current (UPS) in addition to the normal supply of power. If the AC supply fails, the RD625 switches to the second power supply automatically.
VHF: 136 – 174 MHz
Supported operating modes
DMR Tier II
DMR Tier II in accordance with ETSI TS 102 361-1/2/3
Number of channels
Number of zones
12.5 / 20 / 25 kHz
13.6 ± 15% VDC
Max. power consumption (in stand by)
≤ 0.5 A at 13.6 V DC
Max. power consumption (during transmission)
≤ 5.5 A at 13.6 V DC
Dimensions (H × B × T)
210 x 348 x 108 mm
1 – 25 W (continuous)
11K0F3E at 12.5 kHz
4FSK digital modulation
12.5 kHz (data only): 7K60FXD
Interfering signals and harmonics
-36 dBm < 1 GHz
±2.5 kHz at 12.5 kHz
Hum and noise
40 dB at 12.5 kHz
Adjacent channel selectivity
60 dB at 12.5 kHz
+1 dB to -3 dB
≤ 3 %
Digital vocoder type