Advertisement
HTA-DD3
A D J U S T M E N T S
1) FM Discriminator
Measuring instrument and condition.
Input terminal
FM antenna
1kHz, 60dBu,
22.5kHz dev.
2) Voltage of covering (Reference)
Band
Destination
FM
E/EBS
(50kHz step)
W/WUN/WAU
(50kHz step)
AM
E/EBS
(9kHz step)
W/WUN/WAU
(9kHz step)
3) Tuning level (dB) adjusment
Input – FM antenna, 1 KHz, 26 dBµV, 75 KHz
Adjust – VR1
Limit – 26±2dB
(NOTE) Adjust VRI until "Tuned" Indicator light on.
Output terminal
Measuring instrument
* R22
DC balance meter
* R22
Frequency
Specification
87.50MHz
108.00MHz
87.50MHz
108.00MHz
522kHz
1,611kHz
522kHz
1,611kHz
Frequency
98.1 MHz
DC balance meter
Limit(V)
Average(V)
1.3-3.7
2.4
6.0-9.0
7.5
1.3-3.7
2.4
6.0-9.0
7.5
0.9-1.2
1.1
6.0-9.0
7.5
0.9-1.2
1.1
6.0-9.0
7.5
– 8 –
Adjust
Reading
T4
0±30mV
Note
Advertisement
