Hytera RD625

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....

Product Details

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.

 

Features

 

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. 

 

Specifications


General data

Frequency range

VHF: 136 – 174 MHz
UHF: 400 – 470 MHz / 450 – 527 MHz

Supported operating modes

DMR Tier II 

Analog

DMR Tier II in accordance with ETSI TS 102 361-1/2/3

Number of channels

1024

Number of zones

1

Channel spacing

12.5 / 20 / 25 kHz

Operating voltage

13.6 ± 15% VDC
90 V - 264 VAC

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

Frequency stability

±0.5 ppm

Antenna impedance

50 Ω

Dimensions (H × B × T)

210 x 348 x 108 mm

Weight

2870 g


Transmitter

Transmitting power

1 – 25 W (continuous)

Modulation

11K0F3E at 12.5 kHz
14K0F3E at 20 kHz
16K0F3E at 25 kHz

4FSK digital modulation

12.5 kHz (data only): 7K60FXD
12.5 kHz (data and voice): 7K60FXW

Interfering signals and harmonics

-36 dBm < 1 GHz
-30 dBm > 1 GHz

Modulation limiting

±2.5 kHz at 12.5 kHz
±4.0 kHz at 20 kHz
±5.0 kHz at 25 kHz

Hum and noise

40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz

Adjacent channel selectivity

60 dB at 12.5 kHz
70 dB at 20/25 kHz

Audio sensitivity

+1 dB to -3 dB

Audio distortion

≤ 3 %

Digital vocoder type

AMBE++

 


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