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 [REPRESENTANTE] [PORTÁTILES] [MÓVILES] [BASES] [F.R.S] [REPETIDORAS] [AVL] [CONTÁCTA A  KENWOOD]

TKR-720/TKR-820
VHF/UHF
DESK-TOP REPEATERS

NOTE: We have installed several of these repeaters and have not had one maintenance failure.  Also, the receiver sensitivity is much better than stated specification. (We have three of these installed at a location over forty miles form the shop and can talk through them on a two watt portable!)


The KENWOOD TKR-720/820 VHF/UHF repeaters have been built with the utmost emphasis on quality, ruggedness and flexibility. KENWOOD's design utilizes the latest in solid state electronics, and strict adherence to demanding production standards assures that the repeater will meet stringent performance and reliability criteria.

Features and Benefits

  • Synthesized Design using EEPROM provides maximum reliabilty and flexiblity.
  • 15-50 Watts RF Output (TKR-720) and 2-20 Watts RF Output (TKR-820)
  • Hi-Performance Receive/Transmit Design
  • Built-in Multiple-Tone Unit
  • Compact Desk-Top Design
  • Heavy-Duty Die-Cast Chassis and Modular Contruction for Receive and Transmit Circuits
  • Large Heatsink Allows High Duty Cycle
  • TKR-720 frequency range 150-174 MHz
  • TKR-820 frequency range 406-430/450-512 MHz

TKB-720 DESK-TOP BASE STATION

MODEL

DESCRIPTION

TKB-720K VHF, 50 WATT, DESK-TOP REPEATER RADIO, 150 - 174 MHz
L135 SETUP, BENCH ALIGN, TEST, PROGRAM FREQUENCIES & FEATURES

TKR-720/820 DESK-TOP REPEATER RADIO ACCESSORIES

KMC-9 BASE STATION DESK TOP MICROPHONE
KMC-14 STANDARD DYNAMIC MOBILE MICROPHONE
PD636-6A STANDARD INTERNAL DUPLEXER (4.5 MHz FREQ. SPLIT MIN) (REQUIRES KCT-11)
KCT-11 INTERNAL DUPLEXER INSTALLATION KIT
L-703 INSTALL DC BACKUP KIT (INCLUDES PARTS)
l-704 INSTALL RACK MOUNTING HARDWARE (INCLUDES PARTS)

 


TKR-720 / 820 VHF DESK-TOP REPEATER STATION RADIO

The Kenwood TKB-720/820 is a compact VHF synthesized 50 watt VHF, 20 watt UHF Desk-Top repeater. Features include heavy duty die-cast aluminum mounting frame and heat sink, front panel "TX" and busy channel indicators. A front mounted monitor speaker, volume, and squelch, controls are also featured. Front mounted monitor, repeat, microphone jack and power switches are also provided. Includes CTCSS or digital CTCSS tone squelch module capable of 8 separate sets of tones and a Time-out-timer. Options include: DC battery backup, desktop or mobile microphone, and antenna duplexer. The standard Kenwood two year parts and shop labor warranty is included. Installation at repeater site not included.

 

 

TKR-720/820 DESK-TOP REPEATER RADIO

MODEL

DESCRIPTION

TKR-720K VHF, 50 WATT, DESK-TOP REPEATER RADIO, 150 - 174 MHz
TKR-820K UHF, 20 WATT, DESK-TOP REPEATER RADIO, 450 - 470 MHz
L135 SETUP, BENCH ALIGN, TEST, PROGRAM FREQUENCIES & FEATURES

TKR-720/820 DESK-TOP REPEATER RADIO ACCESSORIES

KMC-9 BASE STATION DESK TOP MICROPHONE
KMC-14 STANDARD DYNAMIC MOBILE MICROPHONE
PD636-6A STANDARD INTERNAL DUPLEXER (4.5 MHz FREQ. SPLIT MIN) (REQUIRES KCT-11)
KCT-11 INTERNAL DUPLEXER INSTALLATION KIT
L-703 INSTALL DC BACKUP KIT (INCLUDES PARTS)
l-704 INSTALL RACK MOUNTING HARDWARE (INCLUDES PARTS)

 

 

TKB/TKR-720 / TKR-820 TECHNICAL SPECIFICATIONS

MODEL

TKB/TKR-720

TKR-820

GENERAL SPECIFICATIONS
FREQUENCY RANGE

150 - 174 MHz

450 - 512 MHz

NUMBER OF CHANNELS

REPEATER 1,   BASE STATION 9 OR 16

1

AC INPUT VOLTAGE

120 VAC @ 230 WATT MAX

120 VAC @ 200 WATT MAX
DC INPUT VOLTAGE

13.6 VDC (±20%) NEGATIVE GND

13.6 VDC (±20%) NEGATIVE GND

CURRENT DRAIN: (DC INPUT)

STANDBY

RECEIVE

TRANSMIT (STANDARD)

TRANSMIT ( HIGH POWER)

 

0.4 A

1.0 A

8 A

12 A

 

0.4 A

1.0 A

8 A

12 A

POWER OUTPUT 50 WATTS 20 WATTS
DUTY CYCLE

RX: 100% TX: 50%  100% @ 15 WATTS

RX: 100% TX: 50%

DIMENSIONS (IN) W X H X D

5.5 X 1.6 X 6.7

5.5 X 1.6 X 6.7

WEIGHT (LB)

2.2

2.2

CHANNEL SPACING

30 kHz

25 kHz

ANTENNA IMPEDANCE

50 OHMS

50 OHMS

RECEIVER
SENSITIVITY (12 dB SINAD)

0.35 uV

0.35 uV

SELECTIVITY (ADJACENT CHANNEL)

85 dB

80 dB

SPURIOUS RESPONSE (REJECTION)

90 dB

85 dB

INTERMODULATION DISTORTION

80 dB

75 dB

AUDIO OUTPUT

4 W @ < 5% DISTORTION

4 W @ < 5% DISTORTION

FREQUENCY STABILITY

± .00025%

± .00025%

CHANNEL SPREAD (TK B720)

4 MHz

TRANSMITTER
POWER OUTPUT (WATTS)

26W (STANDARD) / 45W (HIGH)

25W (STANDARD) / 35W (HIGH)

SPURIOUS EMISSIONS

< -70 dB

< -70 dB

FM HUM & NOISE

< -50 dB

< -48 dB

MODULATION AUDIO DISTORTION

< 3%

< 3%

FREQUENCY STABILITY

± .00025%

± .00025%

CHANNEL SPREAD (TK B720)

7 MHz




 

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