Specifications - Kenwood TR-7400A Service Manual

Weight
TRANSMIT SECTION
RF Output Power
Modulation
Max. Frequency Deviation
Spurious Radiation
Touch Tone Input Impedance
Microphone
RECEIVE SECTION
Circuitry
Intermediate Frequency
Squelch Sensitivity
Pass Band Width
(2
Selectivity Signal)
Image Rejection
Spurious Interference
lntermodulation
Audio Output
OPTION
i) Tone Squelch
Tone Deviation
Encorder Response
Frequency Stability
Tone Squelch Open Sensitivity
Tone Distortion
ii) Tone Burst
Burst Time
NOTE: The circuit and ratings may change without notice due to development in technology.
Transistors 58
FETs 8
I Cs 19
Diodes 63
144.00 to 147.995 MHz
Digital (TTL Logic) control of phase locked VCO
Less than k750 Hz at 25"~
FM
800
-20 to +50°c
11.5 VDC to 16.0 VDC
(13.8 VDC as reference)
Negative grounding
52
50
Less than 1A in receive with no input signal
Less than 8A in transmit (HI)
Less than 4.5A in transmit (LOW)
(at 13.8 VDC)
182 mm (7-3116") wide
74 mm (2-718") high
270 mm (10-518") deep
Approx. 2.8 kg (6.2 Ibs.)
High 25 watts
Low approx. 5 watts
Variable reactance direct shift
k5 kHz
Less than -60 dB
600 52
Dynamic microphone with PTT switch, 500
Double superheterodyne
1st IF 10.7 MHz
2nd IF 455 kHz
Less than 0.4 pV for 20 dB quieting
(Less than 1 ,uV for 30 dB SIN)
Less than 0.25 ,uV
More than 12 kHz at 6 dB down
More than 72 dB at 30 kHz of adjacent channel
More than 70 dB
More than 60 dB
More than 66 dB
More than 1.5 watts across 8
k0.5 kHz (adjusted)
Less than 0.5 sec.
Less than 21%
Approx. 0.5 sec. (adjusted)
(min.)
(adjustable up to 15 watts)
52
52 load (10% distortion)