TM-V71A/V71E
56
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
11. AF distortion
Check
• Band A
1) Frequency: 145.250MHz
E,M4
Frequency: 146.250MHz
K
SSG output: –53dBm (501µV)
SSG MOD: 1kHz
SSG DEV: 3kHz
AF output: 1V/8
Ω
SSG
Oscilloscope
Distortion
meter
AF V.M
Dummy load
Rear
panel
ANT
EXT.SP
Check
4% or less
• Band B
2) Frequency: 145.250MHz
E,M4
Frequency: 146.250MHz
K
SSG output: –53dBm (501µV)
AF output: 1V/8
Ω
12. Sensitivity
Check
• Band A
(Wide)
1) Frequency: 145.250MHz
E,M4
Frequency: 146.250MHz
K
SSG output: –122dBm (0.178µV)
SSG MOD: 1kHz
SSG DEV: 3kHz
AF output: 0.63V/8
Ω
2) Frequency:144.250MHz
SSG output: –122dBm (0.178µV)
3) Frequency: 145.750MHz
E,M4
Frequency: 147.750MHz
K
SSG output: –122dBm (0.178µV)
4) Frequency: 430.250MHz
E,M4
Frequency: 438.250MHz
K
SSG output: –122dBm (0.178µV)
5) Frequency: 435.250MHz
E,M4
Frequency: 444.250MHz
K
SSG output: –122dBm (0.178µV)
6) Frequency: 439.750MHz
E,M4
Frequency: 449.750MHz
K
SSG output: –122dBm (0.178µV)
7) Frequency: 136.050MHz
K,E
SSG output: –115dBm (0.4µV)
8) Frequency: 160.050MHz
K,E
SSG output: –115dBm (0.4µV)
9) Frequency: 225.050MHz
K,E
SSG output: –110dBm (0.707µV)
10) Frequency: 382.050MHz
K,E
SSG output: –110dBm (0.707µV)
11) Frequency: 400.050MHz
K,E
SSG output: –118dBm (0.28µV)
12) Frequency: 460.050MHz
K,E
SSG output: –100dBm (2.24µV)
13) Frequency: 520.050MHz
K,E
SSG output: –100dBm (2.24µV)
Check
12dB SINAD or more
• Band A
(Narrow)
14) Frequency: 145.250MHz
E,M4
Frequency: 146.250MHz
K
SSG output: –120dBm (0.22µV)
SSG MOD: 1kHz
SSG DEV: 1.5kHz
AF output: 0.63V/8
Ω
15) Frequency: 435.250MHz
E,M4
Frequency: 444.250MHz
K
SSG output: –120dBm (0.22µV)