PRESIDENT BILLY, Руководство по обслуживанию, Страница: 4 / 30

RECEIVER SECTION
ITEM
UNIT NOMINAL LIMIT
1. Max. Sensitivity
pV
0.5 1
2. Sensitivity for 10dB S+N/
pV 0.5 1
3. AGC Figure of Merit 50mV for 10dB
■
Change in Audio Output dB 85 75
4. Overall Audio Fidelity at 6dB down ( refer to 1 KHz )
Upper Frequency Hz
2500 2000 min.
Lower Frequency Hz
300 500 max.
5. Adjacent Channel Selectivity dB
55 45
( Two Signal )
6. Maximum Audio Output Power
W
4.0 2.0
7. Hum and Noise Ratio at 1mV
dB 40 30
8. Squelch Sensitivity at Threshold
pV 0.5 1
9. Squelch Sensitivity atTight pV 1000 250 to 4000
10. Image Rejection Ratio ( 900KHz ) dB
70 60
11.1F Rejection Ratio 1st and 2nd dB 70
60
12. 1/2 IF Rejection Ratio
dB 70 60
13. Spurious response (22.73 MHz 40CH) dB 50 40
14. Oscillator Dropout Voltage
V 9 11
15. Battery Drain ( at DC Power Jack + 13.8V)
(a) No Signal mA
100 200
(b) Max. Power mA 800
1000
16. Distortion % 4
7
3