Kenwood TM-V708A Service Manual page 39

Receiver section
Item Condition
1. AF distortion 1) Band A
adjust
FREQ.:146.250MHz
SSG:0.178µV (-122dBm)
AF output:0.63V/8Ω
2) Band A
FREQ.:444.250MHz
SSG:0.178µV (-122dBm)
AF output:0.63V/8Ω
2. High level 1) Band A
input S/N and FREQ.:146.050MHz
distortion SSG:501µV (-53dBm)
check AF output:2.83V/8Ω
2) Band B
FREQ.:444.150MHz
SSG:501µV (-53dBm)
AF output:2.83V/8Ω
3. Sensitivity 1) Band A
check FREQ.:146.050MHz
FREQ.:144.050MHz
FREQ.:147.925MHz
SSG:0.25µV (-119dBm)
AF output:0.63V/8Ω
2) Band B
FREQ.:444.150MHz
FREQ.:438.100MHz
FREQ.:449.875MHz
SSG:0.178µV (-122dBm)
AF output:0.63V/8Ω
3) Band A (Sub band)
FREQ.:441.150MHz
SSG:0.28µV (-118dBm)
AF output:0.63V/8Ω
4) Band B (Sub band)
FREQ.:146.050MHz
SSG:0.398µV
(-115dBm)
AF output:0.63V/8Ω
4. Squelch Switch to adjustment
write mode and carry out the
operations for Item A.
Band A
1) FREQ.:146.350MHz
SSG:0.07µV (-130dBm)
SSG DEV:3kHz MOD:1kHz
2) FREQ.:127.100MHz
SSG:0.07µV (-130dBm)
SSG DEV:3kHz MOD:1kHz
3) FREQ.:223.100MHz
SSG:0.158µV (-123dBm)
SSG DEV:3kHz MOD:1kHz
ADJUSTMENT
Measurement
Test-
Unit Terminal
equipment
SSG Rear ANT
Oscilloscope panel EXT.SP
AF V.M
Distortion
meter
SSG Rear ANT
Oscilloscope panel EXT.SP
AF V.M
Distortion
meter
SSG Rear ANT
Distortion panel EXT.SP
meter
Oscilloscope
AF V.M
SSG Rear ANT
panel EXT.SP
TM-V708A
Adjustment
Unit Parts Method
TX-RX L200 SINAD
L102 MAX
L500 SINAD
L401 MAX
Check
Check
Display [SET] key Write
Specifications/
Remarks
S/N 42dB or more
Distortion rate:4% or
less
SINAD 12dB or more
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