| Item | Setting | Adjust Point | Measurement |
|---|---|---|---|
| PLL 2 Alignment | Set radio to AM RX mode. RF SG setting at 24.000 MHz. RF SG setting at 32.000MHz Connect Multimeter to TP10 | L14 | 1,0V DC +/- 0,1V <4,5v DC |
| PLL 1 Alingnment | Set radio to AM RX mode. RF SG setting at 24.000MHz. RF SG setting at 32.000MHz. Connect Multimeter to TP11. | L14 | 1,0V DC +/- 0,1 V <6,5v DC |
| Base Frequency | Set radio to AM RX mode. Set radio to AM TX mode. Clarifier setting in 12 o`clock. Connect Frequency Counter to TP16 | VC2 VR8 | 10.100MHz +/- 10Hz 10.100MHz +/- 10Hz |
| AM frequency checking | Set radio to AM, RX and TX mode. Connect Frequency Counter to TP3. | 38.69500MHz | |
| USB frequency checking | Set radio to USB, RX and TX mode. Connect Frequency Counter to TP3. | 38.69750MHz | |
| LSB frequency checking | Set radio to LSB, RX and TX mode. Connect Frequency Counter to TP3. | 38.69250MHz | |
| AM OSC | Set radio to AM TX mode. Mod. off. Connect Frequency Counter to TP5. | L18 | 10.69500MHz +/- 10Hz |
| SSB OSC | Set radio tu USB mode. Mod. off. Set radio to LSB mode. Mod. off. Short TP6 to ground. Connect Frequency Counter to TP5 | L19 L20 | 10.6975MHz +/- 10Hz 10.6925MHz +/- 10Hz |
| TX Pre-adjust | Set radio to 28.000MHz, AM TX mode. Modulation off. Set radio to 28.000MHz, SSB mode. Modulation 1kHz. Connect Scope and Frequency Counter to TP17. Set radio to 24.000MHz and 32.000MHz. | L18, L37, L35, L4 L35, L34 | Maximum output. Reduce Mod. signal and fine adjust to maximum output. Maximum output and balance. |
| Power stage Pre-adjust | Set radio to AM TX mode. Set radio to SSB TX mode. RF Power fully clockwise. Connect Multimeter to TP8 | VR15 VR18 | 6 V DC 12,5 V DC |
| BIAS Current | Set radio to SSB TX mode. Connect current meter to TP7(+) and TP9(-) Connect current meter to TP7(+) and TP8(-) | VR13 VR11 and VR12 | 10mA (50mA + 50mA) = 100mA |
| AM TX Power | Set radio to AM TX mode. Mod. off. RF Power fully clockwise. RF Power fully counter clockwise. Connect "short PCB" to TP7 and TP9 | VR15 VR19 | 10W (50W) 1W (8W) 24-32MHz |
| RF Power Meter | Set radio to 28.000MHz, AM TX mode. RF Power fully clockwise. | VR10 | Meter Indicator |
| AM Modulation | Set radio to 28.000MHz, AM TX mode. AF signal 30mV, 1kHz to microphone. Mic. gain fully clockwise. | VR17 | 90% Modulation <7% Distortion |
| SSB TX Power | Set radio to SSB TX mode. AF signal 30mV, 1kHz to microphone. | VR14 | 25W (100W) (24-32MHz) |
| SSB Carrier Balance | Set radio to SSB TX mode. Mod. off. Connect Scope to Antenna Connector. | VR7 | Spurious Emission to minimum. |
| CW TX | Set radio to 28.000MHz, CW mode. Plug in CW key, disconnect Mic. jack. AC Voltmeter | VR9 | 200mV Sine Wave |
| Checking FM Modulation | Set radio to FM TX mode. AF signal 30mV, 1kHz to microphone. Mic Gain fully clockwise. | 4kHz +/- 1kHz Deviation <7% Distortion | |
| AM Sensitivity | Set radio to AM RX mode. Clarifier setting in 12 o`clock. RF Gain fully clockwise. NB/ANL switch off. VOL control at 2 o`clock. Connect RF SSG to antenna jack. Frequency 28.000MHz, 30% mod. RF SSG setting 24.000MHz. RF SSG 32.000MHz. | L5, L6, L7, L8, L9, L10, L2, L3 L5, L6, L7 | Audio output > 2 Volt S/N > 10dB Balance between 24 and 32MHz |
| USB Sensitivity | Set radio to USB RX mode. Vol control fully clockwise. RF SSG setting 28.001MHz, 0,25uV mod. | L11, L12 | Audio output > 2 Volt S/N > 10dB |
| LSB Sensitivity | Set radio to LSB RX mode. Vol control fully clockwise. RF SSG setting 27.999MHz, 0,25uV mod. | L11, L12 | Audio output > 2 Volt S/N > 10dB |
| FM Distortion | Set radio to FM RX mode. RF SSG setting 28.000MHz, Mod. 3kHz 1mV Mod. 3kHz 0,5uV | L4 | Distortion Min. and Output Max. S/N > 20dB |
| NB Adjust | Set radio to AM mode. NB/ANL switch on. RF SSG setting 28.000MHz Mod. 30%, 100uV Connect multimeter to TP1 | L1 | > 2 Volt |
| AM Squelch | Set radio to AM mode. SQ control at fully clockwise. RF SSG setting 28.000MHz. Mod. 30%, 1mV | VR4 Slowly | Adjust very slowly until squelch just open. |
| SSB Squelch | Set radio to USB mode. SQ control at fully clockwise. RF SSG setting 28.001MHz. Mod. off. | VR3 Slowly | Adjust very slowly until squelch just open. |
| AM S/RF Meter. AM S-Meter | Set radio to AM mode. Meter switch at S/RF position. RF SSG setting 28.000MHz. Mod. 30%, 100uV | VR1 | Level meter indicate "6" on the scale position. |
| SSB S-Meter. | Set radio to USB mode. Meter switch at S/RF position. RF SSG setting 28.001MHz. Mod. off. | VR2 | Level meter indicate "6" on the scale position. |