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Kenwood TM-221A Service Manual page 48

144mhz fm transceiver
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TM-221A/E/ES.
SPECIFICATIONS
Frequency range
144 to 148MHz
144 to 146MHz
Mode
F3E (FM)
50 ohms
—20°C to +60°C (—4°F to +140°F)
13.8V DC + 15%
Negative
Antenna impedance
Operating temperature
Power requirements
Ground
Transmit mode (Max.)
a
drain
| Receive mode with no
input signal
0.4A
Frequency stability
Better than + 10 x 10 ~6
Dimensions
(Projections included,
W x H x D mm)
Weight
141 x 42 x 193
141 x 42 x 154
1.2kg
45w
Approx. 5W
Adjustable up to out 30W
Reactance modulation
Output
power™*
Approx. 1W
Modulation
Spurious radiation
Less than —60dB
Max. frequency deviation
+5kHz
Audio distortion (at 60% modulation)
Less than 3%
Microphone impedance
500 to 600 ohms
Circuitry
Double conversion superheterodyne
10,695MHz/455kHz |
10.7MHz/455kHz
Less than 0.16uV
—6dB : More than 12kHz, —60dB : Less than 26kHz
Better than 70dB
Less than 0.1uV
More than 2W across 8 ohms load
8 ohms
Transmitter
Intermediate frequency
Sensitivity (12dB SINAD)
Selectivity
Spurious response
Receiver
Squelch sensitivity
Output (5% distortion)
External speaker impedance
Notes :
1.
Circuit and ratings are subject to change without
notice due to advancement in technology.
2.
»: Recommended duty cycle :
1 minute
: Transmission
3 minutes
: Reception
KENWOOD COMMUNICATIONS
Post Office Box 7065, Compton, California 90224, U.S.A.
KENWOOD COMMUNICATIONS
DIVISION OF KENWOOD
ELECTRONICS, DEUTSCHLAND
GMBH
Rembriicker Str. 15, 6056 Heusenstamm, West Germany
KENWOOD ELECTRONICS, BENELUX NV.
Mechelsesteenweg 418 B-1930 Zaventem, Belgium

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