| Step |
Condition |
Adjustment |
Procedure |
| 1 |
Mode: TX USB
27.185MHz
S1 and S2 OFF |
VR11 |
Disconnect PC834.
Connect DC Current Meter on TP9(+) and TP8(-). Adjust for
50mA. |
| 2 |
Mode: TX USB
27.185MHz
S1 and S2 OFF |
VR9 |
Disconnect PC834.
Connect DC Current Meter on TP9(+) and TP8(-). Adjust for
4mA. |
| 3 |
Mode: TX USB
27.185MHz
S1 and S2 OFF |
VR10 |
Disconnect PC834.
Connect DC Current Meter on TP9(+) and TP8(-). Adjust for
80mA. |
| 4 |
Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz |
L46 |
Set the core of L46 to
the bottom, adjust VR12 to minimum. |
| 5 |
Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz |
L45 L48 L49 |
Adjust the cores to
obtain max. deviation on RF VoltMeter. Repeat this
operation with lower AF levelss on MIC input. |
| 6 |
Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz |
L46 |
Adjut to obtain max
deviation on RF Voltmeter. Adjust to obtain a mimimum
power difference between Ch.40 HIGH and Ch.1 LOW |
| 7 |
Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz |
L37 |
Adjust to obtain max
deviation on S/RF Meter |
| 8 |
Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz |
VR12 |
Adjust to obtain 32,4
Volt on RF VoltMeter |
| 9 |
Mode: TX USB
27.185MHz
S1 and S2 OFF |
VR7 |
Adjust to obtain minimum
difference between USB and LSB |
| 10 |
Mode: TX AM
27.185MHz
S2 OFF |
VR13 |
Adjust to obtain 10 Watt
on RF Power meter |
| 11 |
Mode: TX AM
27.185MHz
S2 OFF |
VR8 |
Set Switch on S/RF.
Adjust to set the S-meter between the Red and Green field |
| 12 |
Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz 30mV |
VR14 |
Adjust to obtain 90 % AM-Modulation
on Oscilloscope. |
| 13 |
Mode: TX FM
27.185MHz
S1 ON
Modulation: 1kHz 30mV |
VR5 |
Adjust to obtain +/- 2
kHz deviation on DeviationMeter. |
| 14 |
Mode: TX AM
27.185MHz
S1 ON |
VR15 |
Set switch on MOD, AF
SignalGenerator to obtain 50% modulation. Adjust levels
of AF Signal Generator to 16dB. Adjust VR15 to obtain 100%
modulation on S-Meter. |
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Free Radio Campaign - o -