Kenwood TM-V7A Service Manual

Transmission section
ADJUSTMENT
TM-V7A/E
Measurement Adjustment Specifications/
It Conditi Test-
em ondition equipment Unit | Terminal Unit Parts Method Remarks
1. Transmission | 1) U band f.counter | Rear ANT TX-RX TC1 444.000MHz:k | Not warm up the set.
frequency FREQ.:444.000MHz:K | Dummy | panel (A/4) 435.000MHz:M,E | —100Hz
FREQ.:435.000MHz:M,E
2-1.
POWER
=|
1)
POWER:LOW
step6-1_|
Power
Rear
ANT
Display
|Encode!UP/DOWN
|
5.0W+0.5W
VHF band FREQ.:CH4 meter panel
Transmission.
Ammeter
2) POWER:MID step6-2 12.0W+1.0W
Transmission.
3) POWER:MAX step6-3 Check 48.0W
Transmission.
4) POWER:HI step6-3 Display |Encode|UP/DOWN |MAX Power 52W or
Transmission. more .
50.0W-+1.0W
MAX Power 48W or
more .
(MAX Power —2W)
+1.0W
5) FREQ.:CH5 Check 44~60W
POWER:HI
Transmission.
6) POWER:MID 10~14W
Transmission.
7) POWER:LOW 3~10W
Transmission.
2-2. POWER 1) POWER:LOW step6-4 | Power Rear ANT Display | Encode |UP/DOWN | 5.0W+0.5W
UHF band FREQ.:CH4 : meter pane!
Transmission.
2) POWER:MID 12.0W+1.0W
step6-5
Transmission.
3) POWER:MAX step6-6 Check 33.0W or more
Transmission.
4) POWER:HI step6-6 Display | Encode {UP/DOWN |MAX Power 37W or
Transmission. more .
35.0W+1.0W
MAX Power 33W or
more .
(MAX Power —2W)
+£1.0W
5) FREQ.:CH5 Check 28~42W
FREQ.:CH6
POWER:HI
Transmission.
6) POWER:MID 10~14W
Transmission.
7) POWER:LOW 1~4W
Transmission.
49

Kenwood TM-V7A Specifications

General Specifications

VHF frequency range	144~148MHz
UHF frequency range	438~450MHz (U.S.A/Canada)
Antenna impedance	50Ω
Usable temperature range	-20°C to +60°C (-4°F to +140°F)
Power supply	13.8V DC ±15% (11.7~15.8V)
Grounding method	Negative-ground
Frequency stability	±3ppm (-10°C to +50°C)
Dimensions (W x H x D)	140 x 54.5 x 205.5 mm

Transmitter Specifications

High power output	50W (VHF) / 35W (UHF)
Mid power output	Approx. 10W
Low power output	Approx. 5W
Spurious emissions	-60dB or less
Maximum frequency deviation	±5kHz
Audio distortion	3% or less (at 60% modulation)
Microphone impedance	600Ω

Receiver Specifications

Circuitry	Double conversion
Intermediate frequency (1st / 2nd)	38.85MHz / 450kHz and 45.05MHz / 455kHz
Sensitivity (VHF or UHF band)	0.16μV or less (12dB SINAD)
Sensitivity (Sub VHF or UHF band)	0.25μV or less
Selectivity (-6dB)	12kHz or more
Selectivity (-60dB)	28kHz or less
Squelch sensitivity	0.1μV or less
Audio output	2W or higher (8 ohms, 5% distortion)
Audio output impedance	8Ω

Weight and Dimensions

Weight	1.2 kg (2.6 lb)
Dimensions (W x H x D)	5.51" x 2.15" x 8.09"