TH-D72A/D72E
55
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
6. Sensitivity
Check
•
A-Band
1) Frequency: 146.05MHz
K
145.05MHz
E
Mode:
FM
SSG: (–119dBm) 0.25µV
AF output: 0.63V/8
Ω
AIP:
OFF
SSG
Distortion
meter
Oscillo-
scope
ANT
SP
Check
12dB SINAD or more
2) Frequency: 444.05MHz
K
435.05MHz
E
Mode:
FM
SSG: (–119dBm) 0.25µV
AF output: 0.63V/8
Ω
AIP:
OFF
3) Frequency: 146.05MHz
K
145.05MHz
E
Mode:
FM
SSG: (–111dBm) 0.63µV
AF output: 0.63V/8
Ω
AIP:
ON
4) Frequency: 444.05MHz
K
435.05MHz
E
Mode:
FM
SSG: (–108dBm) 0.89µV
AF output: 0.63V/8
Ω
AIP:
ON
• B-Band
5) Frequency: 146.05MHz
K
145.05MHz
E
Mode:
FM
SSG: (–118dBm) 0.28µV
AF output: 0.63V/8
Ω
AIP:
OFF
6) Frequency: 444.05MHz
K
435.05MHz
E
Mode:
FM
SSG: (–118dBm) 0.28µV
AF output: 0.63V/8
Ω
AIP:
OFF
7) Frequency: 146.05MHz
K
145.05MHz
E
Mode:
FM
SSG: (–108dBm) 0.89µV
AF output: 0.63V/8
Ω
AIP:
ON
8) Frequency: 444.05MHz
K
435.05MHz
E
Mode:
FM
SSG: (–105dBm) 1.26µV
AF output: 0.63V/8
Ω
AIP:
ON
7. AF Distor-
tion Check
•
A-Band
1) Frequency: 146.05MHz
K
145.05MHz
E
SSG: (–53dBm) 501µV
AF output: 0.63V/8
Ω
SSG
Distortion
meter
Oscillo-
scope
ANT
SP
Check
5% or less
• B-Band
2) Frequency: 146.05MHz
K
145.05MHz
E
SSG: (–53dBm) 501µV
AF output: 0.63V/8
Ω