Kenwood Two Way Radio TKR 750 User Manual

TKR-750/850  
VHF/UHF FM Repeater-Base Units  
DTMF OVER-THE-AIR REMOTE CONTROL  
BASE STATION FEATURES  
16 Channel  
A versatile unit, the TKR-750/850 is a  
16-user group conventional repeater, a  
simplex or full duplex base station or the  
RF core of a trunking system. Advanced  
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  
Simplex or Full Duplex Operation  
Antenna Switch For Simplex/Single Antenna Operation  
Priority Scan  
Remote Control Inputs  
features include DSP audio processing, DTMF transpond code. Also AUX Inputs, upon activation  
7-Segment 2-Character Channel & Scan LED  
2 Character Alphanumeric Channel Designator  
Power/Transmit/Busy LED Indicators  
6 Lighted PF Keys  
and deactivation will encode unique DTMF codes for  
DTMF over-the-air remote control and  
programmable Auxiliary I/O’s.  
monitoring and alarm purposes.  
LED DISPLAY & INDICATORS  
Local Takeover/Remote PF Key  
Channel Up/Down PF Keys  
Volume Control Knob  
The enhanced 7-segment/2-character front panel LED  
CONVENTIONAL REPEATER OPERATION  
provides 2-character alphanumeric channel designator  
The TKR-750/850 are “community repeater-ready” with  
and scan indicator for base station operation, a PLL  
a built-in internal 16 QT/DQT group controller and  
Courtesy Tone  
unlock indicator and a PC program mode status. Front  
programmable repeater functions such as CW  
Front Microphone Jack  
panel dual-color LED’s provide Transmit, Busy,  
Transmitter ID, Hang-Timer, Time-Out-Timer and Repeat  
Front Panel Speaker  
Primary/Backup DC Power indications.  
Enable/Disable Key. The 15W-to-50W (TKR-850:  
Voice Encryption Port  
15W-to-40W) adjustable output power is ideal for  
on-site low power repeater applications.  
BACKUP POWER FEATURES  
GENERAL  
The Backup Battery Warning Tone transmits an over-the-air  
5-second tone after DC supply has switched from  
“mainto “backuppower. Optionally a reminder  
Operation Tone can be transmitted while on backup  
19" Rack Mount Design  
Primary DC Input Connector  
Auto-Switched Back-up DC Input Connector  
Backup Battery Warning/Operation Tones  
CONVENTIONAL OR TRUNKING SYSTEM USE  
The TKR-750/850 can serve as the core element of any  
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.  
power. These tones can be triggered when either DC 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  
power is connected to the “backupDC input line or  
when the supplied voltage is lower than the programmed  
Power Supply Level DC voltage setting.  
SIMPLEX OR DUPLEX BASE STATION  
OPERATION  
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  
The TKR-750/850 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.  
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  
 

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