Test equipment required:
| Power Supply: 13,2 V | DC Current Meter | Oscilloscope | RF Power meter |
| RF VTVM | AF Oscillator | FM Linear Detector | Dummy Load (50 ohm) |
| AF VTVM |
Preparation alignment:
| VR208 | Clockwise | ||
| VR205 and VR 206 | Middle position | ||
| VR207, VR201, VR202, and VR 203 | Counterclockwise | ||
| Mic gain | Clockwise | ||
| Meter SW | RF | ||
| SWR/CAL Volume | Middle position | ||
| RF Power | Clockwise | ||
| Test frequency | 27.185 MHz |
| Step | Condition | Adjustment | Procedure |
|---|---|---|---|
| 1 | LSB 27.185 MHz No Mod. |
VR203 | Remove the PB201 Connect a DC current meter to TP202 (+) and TP203 (-) Adjust for 330 mA |
| 2 | Same as Step 1 | VR201 | Connect a DC current meter to TP202 (+) and
TP201 (-) Adjust for 85 mA |
| 3 | Same as Step 1 | VR202 | Connect a DC current meter to TP202 (+) and
TP201 (-) Adjust for 170 mA |
| 4 | LSB 27.185 MHz Two-Tone 400 Hz and 2.500 Hz 1 mV Mod. |
L221 | Re-install the PB201 Adjust for maximum on the RF VTVM Set the AF-oscillator, so that the output is less than 32 V |
| 5 | LSB 27.185 MHz Two-Tone 400 Hz and 2.500 Hz 30 mV Mod. |
VR208 | Adjust for 25 V on the RF VTVM |
| 6 | SSB 27.185 MHz No Mod. |
VR209 | Adjust the carrier leakade at LSB and USB become minimum and almost equal |
| 7 | AM 27.185 MHz No Mod. |
VR205 | Adjust for 3.9 Watt on the WattMeter |
| 8 | AM 27.185 MHz No Mod. |
VR204 | Adjust for RF Meter at "9" just light on |
| 9 | AM 27.185 MHz 1 kHz 30 mV Mod. |
VR207 | Adjust 90% negative |
| 10 | AM 27.185 MHz 1 kHz 3 mV Mod. |
VR213 | Adjust for Modulation Meter at "9" just light on |
| 11 | FM 27.185 MHz No Mod. |
VR206 | Adjust for 3,9 Watt on the WattMeter |
| 12 | FM 27.185 MHz 1 kHz 30 mV Mod. |
VR212 | Adjust for +/- 1.9 kHz Deviation |
#1999/DréCB {} 19MIR001 [] 27.805 Mhz./USB
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