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Kenwood TKR-751 Brochure

Download Brochure & specs of Kenwood TKR-751 Marine Radio, Radio for Free or View it Online on All-Guides.com.

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CONVENTIONAL REPEATER OPERATION

The TKR-751/851 is “community repeater-ready” with a

built-in internal 16 QT/DQT group controller and

programmable repeater functions such as CW

Transmitter ID, Hang-Timer, Time-Out-Timer and Repeat

Enable/Disable Key. The 1W-to-25W adjustable output

power is ideal for on-site low power repeater applications.

CONVENTIONAL OR TRUNKING SYSTEM USE

The TKR-751/851 can serve as the core element of a

conventional or trunking repeater system. The internal

conventional controller can be used, or an external

conventional or trunking logic controller can be easily

interfaced for advanced systems.

SIMPLEX OR DUPLEX BASE STATION

OPERATION

The TKR-751/851 can be operated in simplex or

full-duplex base station mode with up to 16 channels

and priority scan. Internal solid state antenna switching

is provided for simplex single-antenna base station

operation. The accessory connectors provide remote

control interface. Also programmable are the six PF

function keys, LED indicators, control/warning/alert/

power-on tones and tone volume for facilitating any

remote site installation.

DTMF OVER-THE-AIR REMOTE CONTROL

All front panel PF Key functions and AUX Input

functions can be remotely activated and deactivated

over-the-air via DTMF codes (up to 16 digits each) and

provide an acknowledgement single tone or custom

DTMF transpond code. Also AUX Inputs, upon activation

and deactivation will encode unique DTMF codes for

monitoring and alarm purposes.

LED DISPLAY & INDICATORS

The enhanced 7-segment/2-character front panel LED

provides 2-character alphanumeric channel designator

and scan indicator for base station operation, a PLL

unlock indicator and a PC program mode status. Front

panel dual-color LED’s provide Transmit, Busy,

Primary/Backup DC Power indications.

BACKUP POWER FEATURES

The Backup Battery Warning Tone transmits an over-the-air

5-second tone after DC supply has switched from

“main’’ to “backup’’ power. Optionally a reminder

Operation Tone can be transmitted while on backup

power. These tones can be triggered when either DC

power is connected to the “backup’’ DC input line or

when the supplied voltage is lower than the programmed

Power Supply Level DC voltage setting.

REPEATER FEATURES

•

Full-Duplex Operation

• Built-in 16 QT/DQT Tone/Code Pair Community

Repeater Operation

• External Controller Interface

• Conventional or Trunking Controller Compatible

• Repeat Enable/Disable

• 8 CW Transmitter IDs

• Repeat Hold Timer (hang timer)

• Time Out Timer

BASE STATION FEATURES

• 16 Channel

• Simplex or Full Duplex Operation

• Antenna Switch For Simplex/Single Antenna Operation

• Priority Scan

• Remote Control Inputs

• 7-Segment 2-Character Channel & Scan LED

• 2 Character Alphanumeric Channel Designator

• Power/Transmit/Busy LED Indicators

• 6 Lighted PF Keys

• Local Takeover/Remote PF Key

• Channel Up/Down PF Keys

• Volume Control Knob

• Courtesy Tone

• Front Microphone Jack

• Front Panel Speaker

• Voice Encryption Port

GENERAL

• 19" Rack Mount Design

• Primary DC Input Connector

• Auto-Switched Back-up DC Input Connector

• Backup Battery Warning/Operation Tones

• Rear External Speaker Output (4 Watts Audio)

• Rear Test-Speaker-AUX Connector (15-Pin)

• Built-in Cooling Fan (temperature or continuous)

• Programmable AUX Input/Output Functions

• BCD Remote Channel Selection (4 lines)

• Toggle or Momentary Operation on AUX Input Ports

• Pre-Emphasis On/Off Control (at TA AUX Input)

• DSP Processed QT/DQT

• DSP Processed Companded Audio

• QT/DQT Squelch-Tail Elimination

• Beep Tones for Control, Warning, Alert & Power On

• Electronic Serial Number (ESN)

• Embedded Message with Password Protection

• High Stability Oscillators (TCXO)

• Windows

®

98/2000/Me/XP PC programming & tuning

• Flash Memory

TKR-751/851

VHF/UHF FM Repeater-Base Units

A versatile unit, the TKR-751/851 is a

16-user group conventional repeater, a

simplex or full duplex base station or the

RF core of a trunking system. Advanced

features include DSP audio processing,

DTMF over-the-air remote control and

programmable Auxiliary I/O’s.