Call for systems pricing and configuration. 541-621-4588   Analog operation	Standard
P25 NB operation	Standard
Inbuilt P25 IMBE vocoding	Standard
Repeater operation	Standard
Base station operation	Standard
VoIP and console operation	Standard
12V DC revert:	Standard
Telephone interconnect, analog	Standard
Telephone interconnect, P25 digital	Standard
2/4W EM line interface, analog	Optional (Multi-mode module)
Licensed software options	Link radio, LF-05001 P25 DES-OFB encryption, LF-05002 VoIP, LF-05003 12 kbit/s CVSD repeater, LF-05004
Programmable channels	512
Frequency generation	Synthesized
Channel spacing	12.5 kHz; 15 kHz; 24 kHz; 30 kHz
Analog modulation	FM
Digital modulation	C4FM
Operating temperature range	-30 – +60 C
Frequency stability	1 ppm (standard), 0.1 ppm (optional)
Operating modes	Simplex/Semi-duplex/Duplex
Diagnostics	Inbuilt Web server
Alarms	AC/DC power fail, high VSWR, low output power
Input voltage AC	110V or 240V
AC power connector	IEC type
Input voltage DC	13.8V ± 10%
DC power connector	Powerpole 45A
Antenna connectors	Type N female (Transmit/Receive)
Antenna impedances:	50 R (Transmit/Receive)

Receiver
Tunable frequency VHF UHF	136 -174 MHz 380 - 420 MHz, 400 - 470 MHz, 450 - 520 MHz
Switching bandwidth	Full sub-band
Min transmit/receive spacing for full duplex operation	~700 kHz (VHF), ~2.0 MHz (UHF)
IF frequencies	21.4 MHz/450 kHz (VHF), 72 MHz/450 kHz (UHF)
Demodulation method	Direct down conversion
Receive sensitivity Analog (12 dB SINAD) Digital (5% BER)	-118 dBm/0.25 uV (VHF, UHF) -118 dBm/0.25 uV (VHF, UHF)
Adjacent channel rejection 25 kHz WB analog (80 dB) 12.5 kHz NB analog (60 dB) 12.5 kHz NB digital (45 dB)	83 dB (VHF), 80 dB (UHF) 70 dB (VHF, UHF) 70 dB (VHF), 65 dB (UHF)
Spurious and image response rejection WB analog (85 dB) NB analog (75 dB) NB digital (90 dB)	90 dB (VHF, UHF) 90 dB (VHF, UHF) 90 dB (VHF, UHF)
Intermodulation rejection WB analog (70 dB) NB analog (80 dB) NB digital (75 dB)	85 dB (VHF, UHF) 85 dB (VHF, UHF) 85 dB (VHF, UHF)
Audio response WB and NB analog	+1 dB, -3 dB from 6 dB per octave de-emphasis 0.3 - 3 kHz ref 1 kHz
Audio distortion	WB analog, 2%; NB analog, 2%
Audio input	Line, 0 dBm (nominal) adjustable Loudspeaker, 1 W into 4 R
FM hum and noise	WB analog, 50 dB; NB analog, 45 dB

Transmitter
Tunable frequency VHF UHF	136 – 174 MHz 380 – 420 MHz, 400 – 470 MHz, 450 – 520 MHz
Switching bandwidth	Full sub band
Power output	VHF, 10 – 100 W UHF, 5 – 50 W coming soon:100 W (both adjustable in 1 dB steps)
Modulation method	Direct digital synthesis
Spurious and harmonic attenuation	100 dB VHF, 90 dB (UHF)
Maximum deviation WB analog WB analog NB digital	± 5 kHz ± 2.5 kHz ± 2.5 kHz
Audio response	WB and NB analog, +1, -3 dB from 6 dB per octave pre-emphasis from 0.3 – 3 kHz referenced to 1 kHz
Audio distortion	WB analog <2% NB analog <2%
Audio input Line Microphone	0 dBm (nominal) adjustable ~100 mV
Hum and noise WB analog NB analog	50 dB 45 dB
Emission designators WB analog NB analog NB digital	16KOF3E 11KOF3E 8k10F1E

Demensions, Weight, Powerr Consumption
Dimensions (w x h x d)	19 x 14 x 17.5 inches 483 x 355 x 440 mm
Weight	Single channel, 61 lbs / 28 kg Dual channel, 85 lbs / 39 kg
Power consumption	Single channel, standby, 55 W Single channel, transmit, 380 W Dual channel, standby, 81 W Dual channel: transmit 1 channel, 406 W transmit 2 channels, 720 W

Specifications & methods per TIA 102CAAA/CAAB and TIA/EIA603 as applicable *NTTIA requirement for post 1 Jan 06 procurements. Type approvals: FCC ID: P6ZC100066 (VHF), P6ZC100063 (UHF); IC: 5397A-C100066 (VHF); ACA: Yes (UHF); FCC Part 68: ALT-AUS-36133-NI-E

• VHF and UHF
• DIGITAL and ANALOG, with autosensing
• Two 512 channel repeaters/bases in one package capable

Key Features

• Built-in P25 IMBE vocoding and P25 OFB DES encryption
• Simultaneous operation and linking DIGITAL and ANALOG
• Simultaneous operation and linking VHF and UHF
• Base station/repeater operating modes
• Direct connection to existing tone remote and console systems, PSTN and microwave links
• Multiple call types (including individual calls and group calls)
• IP-enabled providing VoIP and Webbased real-time control and user, Web-diagnostic, monitoring and alarm information using corporate intranets and public internets
• Easy programming via Windows®

P25 Digital and Analog Interoperability, All in One Box.

The DRB-25 is a compact base station/repeater unit, fully compatible with the APCO Project 25 (P25) standard of secure digital radio. Its high power, features and flexibility make it an ideal building block for conventional radio networks.

The DRB-25 supports simultaneous analog and digital P25 operation. Its crossband feature permits communication across different bands as well, making the DRB-25 a highly cost effective migration to digital radio.

Applications

The DRB-25’s modular design and software based features make it an extremely flexible building block for a wide range of network applications.

The DRB-25 can operate in a stand-alone mode or within a conventional network using remote repeaters.

Its compatibility with P25 means that it is ideal for use by public safety organizations requiring a high level of security and interoperability, as well as public utilities (such as power companies) and transport organizations (such as railways).

Available in both VHF and UHF bands the DRB-25 can easily be implemented in a wide range of situations. Interconnection to the PSTN or a microwave bearer is available through a standard 2-wire or 4-wire + E&M interface.

The DRB-25’s compact dual radio configuration is a very cost effective solution for remote locations. One channel can be used as a base station or repeater for general communications, while the second channel acts as a link to other base stations or repeaters.

Fully Software Controlled

The DRB-25’s modular design means there’s no field tuning, adjustments, or alignments necessary. Once the unit is set to your specifications, any future changes are a simple hot-swap of the appropriate module.

Built-in PC Web Server

Control / monitor your system remotely via a built-in ethernet port. Watch critical user info, analyze system activity, transmit, receive, perform diagnostics, monitor NAC activity, change channels, view signal levels, and more, all from a PC Web browser

Linking Flexibility

The DRB-25 may be configured with one or two independent channels. Each channel may operate as an analog and/or a P25 digital repeater or may also be programmed to autosense the mode of a received signal and thus be shared between analog and digital users. With built-in P25 vocoding and DES encryption the DRB-25 may be connected directly to existing tone-based remote and console equipment using 2W and 4W E/M circuits. Direct connection to 2W telephone lines for analog and P25 digital calls is also supported. “IP enabled” connection to corporate intranets and public internets and providing VoIP and control, monitoring and diagnostics through and built-in Web server.

Link Different Modes

Applicable during a migration to digital operation or for interoperablity or to provide interoperability between analog and digital users operating in the same geographic area. The users may be operating in different frequency bands.

Link Wide Areas

Two DRB-25s each configured with 2 channels may be used in either analog or digital mode to provide coverage over a wider area. The coverage and linking channels may use different bands. The DRB-25s are transparent to CTSS/CDCSS and P25 signaling.