Kenwood TKR 750/ 850

TKR750

High-performance features - such
as 16 fu!!-duplex channels, flash
memory and PG/manual tuning - provide crystal-clear and reliable
communications to make Kenwood's
TKB-750/850 VHF/UHF FM repeaters
the first choice for demanding
applications.
HIGH STABITITY 1OO%
COlrlTlNUOUS DUTY
The TKR-850's high stability 1.5PPM (2PPM for
TKR-750) TCXO modules, 100% du$ RF power
amplifier (25W output), integrated die-cast heat
sink and forced-air cooling provide site-friendly,
continuous operation. The TKR-750 has a high
power output of 50W (at 50% duty) while the
TKB-850 otfers 40W (at 50% duty).
16 FULL-DUPLEX CHANNETS &
SINGLE PRIORITY SGAN
With 16 full-duplex channels, these versatile
repeaters can function as a base station or
repeater backup unit to suit various applications.
The built-in 16 channels are preset and selectable
from a remote control utilizing the remote
l/0 connector or pre-programmed key on the
front panel. The programmable function (PD keys
located on the front panel permit adjustment and
testing of repeater sites. ln addition, single priority
scan is available when fie unit is operating in
simplex mode,
QT/DQT WII}I DSP MULTI-DECODE
For QT/DQT groups sharing the same RF signal
range, DSP processing allows up to 16 QT/DOT
signal variations to be processed simultaneously
via the multi-decode function. Two decode tables
(main/sub) are available to facilitate the setup of
channels to different multi-decode ranges.
COMPANDED AUDIO
A built-in compander contributes to improved
audio when operating as a simplex base sbtion.
A wide/narrow setting is available for each
channel.
I RF output power
I MaImum deviation
I TX audio input (tA)
! Signaling deviation (tD)
! CW lD deviation
I Repeat gain
I TX frequeflcy

 

FLASH MEMOBY
Flash memory permits updates, advanced feature
sets and system architectural changes to be
made electronically wifiout ever opening the
unit This means faster modifications for system
operators and less downtime for users.
2.DIGIT NUMERIG LED DISPLAY
The 2-digit numeric LED on fie front panel displays
channel number and operational status
information, such as an "unlocked" enor
LED I]'IDICATORS
The LED indicator lights provide clear system status
information at a glance, including transmit,
receive, battery backup, and DC power. lf the
transmitter or receiver becomes unlocked, the
LEDs flash for quick problem assessment.
WIDUNARROW GHAiIt{Et BAN IDTH
PER GHANNET
TheTKR-750/850 can handle both existing wideband
systems and emerging narrow band applications
for extra flexibility and long-term viability,
WINDOWS@ PBOGRAMM!]IIG AND
TUI{ING SOFII,uARE
The repeater can be programmed from a
Windows@ compatible PC quickly and etficiently
- without ever opening the case - using the
optional FPU and programming interface cable.
Among the radio param-ebrs available for
programming are:
I Squelch I DoT balance
I RX audio signal oubut (BA) I 0T deviation
I RX detector signal output (RD) I DOT deviation
! RX frequency I Test tone deviation
Manual tuning is available for the following settings:
RX helical resonator block bandwidth, MCF
waveform, Quad detector coil, and MIC sensitivity.
6 PF KEYS & TOCAL SPEAKER
ln addition to 6 programmable function keys
(each equipped with an LED indicator), the front
panel has a built-in speaker. This makes it easy
to check on repeater site reception conditions.
There is also a microphone terminal to allow
audio transmission,
EMBEDDED MESSAGE WITH
PASSWORD LOCK
The repeater's flash memory can store an electronic
message - with password protection - containing owner identification, propefi lD numbers,
user and department names, service
records, etc. Additionally, the FPU can be used to
display an electonic serial number, A unit can
thus be electronically identified even if the external
labels, marking or factory serial numbers
have been removed.
EXTERNAL CONTROL I/O
The D-SUB2S connector on the rear panel provides
a control l/0 inteface for external controllers
to enable customization and integration
with other features and capabilities.
BATIERY BAGKUP SYSTEM
Several power-saving features, including a display-
otf function, help to reduce energy consumption.
A built-in backup system supports
automatic switching to a 12v battery* if the ACbased
power supply* fails. ,Not
supptied
DURABTE D!E.CAST
GHASSIS COITISTBUGTION
The die-cast aluminum chassis with integrated
heat sink is the key to the TKF-750/850's durability,
service level and
reduced weight. The
entire unit is sealed to
provide long-term protection
even in fie most
demanding operating
conditions.