PRESIDENT BILLY, Service Manual, Page: 3 / 30

MEASUREMENT CONDITIONS
1. Power Source
2. Antenna Impédance
3. Test Température
4. Modulation Frequency
5. Mean Signal Input Level
6. Reference Audio Output Power
7. Reference Modulation Percentage
8. Audio Output Load
9. Measuring Channel
10. Standard Method of Measurement
11. ESD Test Condition
13.8V (D C )
50П
25° C
1 K H z ( R X )
1OOOpV
0.5W
1 K H z ,30%
8Q résistive ( connect to inside connector )
19
FCC PART 95/15 EIA RS-382
Probe 150pF with 5000 in sériés
Test Température 25° C
NOTE: Limit Spécifications are for measurements on ail channels.
TRANSMITTER SECTION
ITEM
UNIT NOMINAL
*
LIMIT
1. Frequency Tolérance at 25 °C Hz ± 600
± 900
( 5 minutes after Switch on )
2. Carrier Power at No Modulation
W
4.0 3.6 to 4.4
3. Spurious Harmonie Emission
dB -70
-60
4. Microphone sensitivity at 1KHz
for 50% Mod mV 10 20
5. Modulation Frequency Response
( 1KHz , OdB Reference )
Lower at 300Hz dB -3
0 to -15
Upper at 3.0KHz dB -3
0 to -12
6. AMC Range 50 to 100% Mod
dB
45
40
7. Hum and Noise in Transmit
dB
45 40
8. Battery Drain at No Modulation
mA
850
1300
80% Modulation mA 1300
1700
9. Modulation Distortion
%
4.0
7.0
11. Output Protection : Shall meet for 5 minutes for ail VSWR's
( around the Smith Chart ) of 20:1 without damage.
12. Output stability at ail VSWR's ( arouijd the Smith Chart ) of up to
5:1 under continuous operation of a duty cycle
of 5 minutes transmitting, and 1 minute receiving.
2