TKR-740/840

VHF/UHF FM Repeater-Base Units

Kenwood's high-performance analog repeater can be programmed on up to 32 channels. Used most often as an exciter unit and mated to a high output power amplifier, this unit can also be used as a full-duplex base station. The TKR-740/840 includes flash memory capability, is PC tunable, and it's convenient test and auxiliary ports make this unit easy to maintain even at a remote mountaintop site. The high-spec and serviceable TKR-740/840 is the first choice for demanding industrial and public service applications.

Below is a brief list of features. For a complete list of product features and specifications, please download the product brochure.

FEATURES

32 Channel Simplex / Full-Duplex base mode
Priority Scan
Front Panel PF Keys with status LED
Repeat Mode & Internal Controller
Multi-Tone / Code Tables & DSP Processing
Low Profile design and Die-Cast Chassis
Auxillary Macro Ports
Continuous Duty / High Stability RF Power Output
Flash Memory Advantage
LED Indicators
Wide / Narrow Channel Spacing
PC Programming and Tuning
External Reference Input
Local Speaker & Microphone / Test Switch
Companded Audio
Eight CW Message Memories
Voter Tone Generation
Digital Paging Encoder Input
Voice Scrambler Port / Control

Frequency Range Receiving Type 1 Type 2 &nb	146 ~ 162 MHz 158 ~ 174 MHz 136 ~ 150 MHz	450 ~ 480 MHz 480 ~ 512 MHz 400 ~ 430 MHz
Frequency Range Transmitting Type 1 Type 2	136 ? 174 MHz 136 ? 174 MHz 136 ? 174 MHz	450 ~ 480 MHz 480 ~ 512 MHz 400 ~ 430 MHz
Number of Channels	32
Channel Spacing Wide Narrow	30, 25 kHz 15, 12.5 kHz	25 kHz 12.5 kHz
PLL Channel Stepping	2.5, 5, 6.25 kHz	5, 6.25 kHz
Operating Voltage	13.8 V DC &plusmin; 15%
Backup DC Voltage	13.4 VDC
DC current requirement	Standby: <1.0 A Receive: 1.5 A Transmit/Receive: <3.5 A
Duty Cycle	100%
Frequency Stability	±0.00015% (-22° F ~ +140° F)
Antenna Impedance	50 Ω
Operating Temperature Range	-22 °F to +140 °F (-30°C to +60°C)
Dimensions (W x H x D)	19 x 1-3/4 x 12 in. (483 x 44 x 304 mm)
Weight (net)	8.8 lbs. (4 kg)
FCC Id Type K1 Type K2 Type K3	ALH30633110 ALH30633120 ALH30633130	ALH30643110 ALH30643120 ALH30643130
FCC Compliance Type K1 Type K2 Type	FCC parts 22, 74, 90 FCC parts 22, 74, 90 FCC parts 22, 74, 90	FCC parts 22, 74, 90, 95< FCC part 90br>FCC part 90
IC Certification Type K1 Type K2 Typ	282195598A 282195598A 282195598A	282195600A n/a 282195600A

Measurement Compliance	EIA / TIA-204D
Sensitivity	12dB SINAD: 0.30 μV 20dB Quiting: 0.40 μV
Selectivity Wide Narrow	(± 30 kHz) 95 dB (± 15 kHz) 89 dB (± 12.5 kHz) TKR-740: 87 dB	(±25 kHz) 90 dB (± 12.5 kHz) 80 dB
Intermodulation Distortion Wide Narrow	(± 30 kHz) 90 dB (± 15 kHz) 85 dB	(± 25 kHz) 85 dB (± 12.5 kHz) 80 dB
Spurious & Image Rejection	100 dB
FM Hum & Noise Wide Narrow	60 dB 55 dB
Audio Output	4 W at < 5% distortion
Band Spread Type 1 Type 2 Type 3	3 MHz 3 MHz 3MHz	TKR-840: 5 MHz 5 MHz 5 MHz

RF Power Output no external amplifier	0.1 W to 5 W
RF Power Output with external amplifier	40 W to 300 W	40 W to 250 W
Emission Designator	Wideband 16K0F3E Narrowband 11K0F3E
Spurious Response	70 dB	70 dB (60 dB @ 100 mW)
FM Hum & Noise	Wideband: 55 dB Narrowband: 50 dB
Microphone Impedance	600 Ω
Audio Distortion	< .5% at 1000 Hz	< 1% at 1000 Hz
Frequency Spread Type 1 Type 2 Type 3	38 MHz 38 MHz 38 MHz	30 MHz 32 MHz 30 MHz

Call Us

919-832-9121

TKR-740/840

VHF/UHF FM Repeater-Base Units

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