3-8
WRR-801A
WRU-801A
3-2-2. Overall Characteristics Check
Perform the overall characteristics check according to the
following procedure.
Procedure
1.
Output level check
↓
2.
S/N check
↓
3.
Frequency characteristic check
↓
4.
Distortion check
↓
5.
RF Level indicator/RF indicator check
↓
6.
AF Level indicator/AF indicator check
↓
7.
Muting level check
↓
8.
BATT indicator check
↓
9.
Tone squelch check
↓
10. DC
+
9 V OUT voltage check
Equipment and Tools
.
Signal generator
.
Audio analyzer
.
Mic amp (Noise mete) with A-weighted filter
.
Function generator
.
Oscilloscope
.
DC current meter
.
DC cut fixture (See “How to make DC cut fixture” on
page 3-1.)
Connection
1
2
3
4
5
6
Signal
generator
Audio
analyzer
MIC amp
600
Z
balance
input
DC cut fixture
ANTENNA
A IN
Oscilloscope
DC cut fixture
ANTENNA B IN
WRR-801A
Tuner
WRU-801A
Function
generator
TUNER
OUTPUT 1
