Kenwood TKR-740, TKR-840 manual Options

Options

KMC-27A

Microphone (with Noise Canceling)

KMC-27B

Microphone (supplied mobile-style hand mic. with hanger)

KMC-9C

Desktop Microphone

KES-4

External Speaker

* Not all accessories may be available, please contact dealers for details.

Specifications

	TKR-740				TKR-840
GENERAL
Frequency Range	R	Type 1: 146 ~ 162 MHz			R	Type 1: 450 ~ 480 MHz
		Type 2: 158 ~ 174 MHz				Type 2: 480 ~ 512 MHz
	X				X
		Type 3: 136 ~ 150 MHz				Type 3: 400 ~ 430 MHz
	T	Type 1: 136 – 174 MHz			T	Type 1: 450 ~ 480 MHz
		Type 2: 136 – 174 MHz				Type 2: 480 ~ 512 MHz
	X				X
		Type 3: 136 – 174 MHz				Type 3: 400 ~ 430 MHz
Number of Channels				32
Channel Spacing	30, 25 kHz (wide)				25 kHz (wide)
	15, 12.5 kHz (narrow)				12.5 kHz (narrow)
	(PLL channel stepping 2.5 ,				(PLL channel stepping 5,
	5, 6.25 kHz)				6.25 kHz)
Operating Voltage			13.8 V DC ±15%
Current Drain
Standby			Less than 1.0 A
Receive			Less than 1.5 A
Transmit/Rece ive			Less than 3.5 A
Duty Cycle			Receive: 100%, Transmit: 100%
Frequency Stability			±0.00015% (-22¡ F ~ +140¡ F)
Operating Temperature			-22¡ F ~ +140¡ F
Range			(-30¡ C ~ +60¡ C)
Dimensions (W x H x D)			19 x 1-3/4 x 12 in. (483 x 44 x 305 mm)
Weight (net)			8.8	lbs. (4kg)
FCC ID	Type 1:		ALH30633110		Type 1: ALH30643110
	Type 2 :		ALH30633120		Type 2: ALH30643120
	Type 3:		ALH30633130		Type 3: ALH30643130
FCC Compliance	Type 1:		22, 74, 90		Type 1: 22, 74, 90, 95
	Type 2:		90		Type 2:		90
	Type 3:		90		Type 3:		90
CANADA IC (RSS119)	Type 1:		282195598A		Type 1:		282195600A
	Type 2:		282195598A		Type 2:		None
	Type 3:		282195598A		Type 3:		282195600A

	TKR-740				TKR-840
RECEIVER (Measurements made per EIA /TIA-204-D)
Antenna Impeda nce				50 Ω
Sensitivity:
12 dB SINAD			0.3 µV
20 dB quieting			0.4 µV
Selectivity	95	dB at ±30 kHz (wide)			90 dB at ±25 kHz (wide)
	89	dB at ±15 kHz (narrow)			82 dB at ±15 kHz (narrow)
	87	dB at ±12.5 kHz (narrow)
Intermodulation	90	dB at ±30, 60 kHz (wide)			85 dB at ±25, 50 kHz (wide)
	85	dB at ±15, 30 kHz			80 dB at ±12.5, 25 kHz
	(narrow)				(narrow)
FM Hum & Noise			60 dB (wide)
		55 dB (narrow)
Audio Output (Ext. Speaker)		4 W (at 4 Ω, less than 5% distortion)
Spurious & Image Rejection			100 dB
Audio Distortion (Ext.		Less than 2% at 1000 Hz
Speaker)
Band Spread		Type 1: 3 MHz			Type 1: 5 MHz
		Type 2: 3 MHz			Type 2: 5 MHz
		Type 3: 3 MHz			Type 3: 5 MHz

	TKR-740		TKR-840
TRANSMITTER (Measurements made per EIA-152-C)
RF Power Output	5 W adjustable to 0.1 watts
Antenna Impedance		50 Ω
Type of Emission		16KØF3E (wide)
	11KØF3E (narrow)
Spurious & Response	70 dB		70 dB (60 dB at 100 mW)
FM Hum & Noise		55 dB (wide)
		50 dB (narrow)
Microphone Impedance		600 Ω
Audio Distortion	Less than 0.5% at 1000 Hz		Less than 1% at 1000 Hz
Band Spread	Type 1: 38 MHz		Type 1: 30 MHz
	Type 2: 38 MHz		Type 2: 32 MHz
	Type 3: 38 MHz		Type 3: 30 MHz

	TKR-740		TKR-840
REPEATER CONTROL (Measurements made per TIA/EIA-603)
Signaling (simultaneously)
Maximum number of		16
tones
QT decoder/encoder
Tone frequency		67.0-210.7Hz (0.1 Hz step)
Response time		250 ms or less
Squelch tail elimination		140 to 200 ms
time
Encoder frequency error		±0.3% or less
Sensitivity		SINAD 8 dB or less
DQT decoder/ encoder
DQT code	23 bits total: a 3-digit octal number (0 -7,12 bits) with error
		correction (11 bits)
Decoder response time		250 ms or less
Turn-off code		140 to 200 ms
transmission time		SINAD 8 dB or less
Sensitivity
Time-out timer		Off - 30 min.
Repeater hold time		Off - 10 sec.

	TKR-740		TKR-840
EXTERNAL CONTROL
CW ID
Maximum modulation		Maximum deviation of 40% ±10%
CW tone frequency	400 Hz to 2000 Hz, (default 800 Hz)
Morse code speed	5 to 30 word per minute, (default 20 WPM)
Maximum character		Up to 20 characters
memory
CW Massage
Maximum character		Up to 20 characters per bank
Number of bank		8 banks
Test tone
Maximum modulation		Maximum deviation of 60%
Test tone frequency	300 Hz to 3000 Hz (default 1000 Hz)
Voting pilot tone
Tone frequency	1950 Hz, 2175 Hz, 2700 Hz, (default 1950 Hz)
Output level (RA terminal)		400 mVrms at 1950 Hz

Kenwood follows a policy of continuous advancement in development.

For this reason specifications may be changed without notice.

ER C

T

I

F

IE D

14-6, 1-chome, Dogenzaka, Shibuya-ku, Tokyo 150-8501, Japan

P.O. BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

This has been printed on recycled paper. CL280KP-E-2(00) 991203B Printed in Japan