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| SETTINGS | CONNECTION | ADJUST | ADJUST FOR |
|---|---|---|---|
| VCO: Disconnect the “short PCB” from TP7, TP8 and TP9. Set radio to CH 20 AM RX mode. Clarifier setting in 12 o’clock. | Connect FC to IC3 Pin 8 | VC1 | Adjust for 10.24000MHz ±20Hz. |
| VCO: Disconnect the “short PCB” from TP7, TP8 and TP9. Set radio to CH 20 AM RX mode. Clarifier setting in 12 o’clock. | Connect DVM to TP2. | L14 | Adjust for 3.0 VDC ±0.1 |
| VCO: Disconnect the “short PCB” from TP7, TP8 and TP9. Set radio to CH 20 AM RX mode. Clarifier setting in 12 o’clock. | Connect Oscope to TP3 | L15 | Adjust for max. |
| AM Frequency: Set radio to CH 20 AM RX mode. | Connect frequency counter to TP3. | L20 | 16.51000 MHz ±20Hz. |
| USB Freq: Set radio to CH 20 USB mode. | Connect frequency counter to TP3. | L21 | 16.51250 MHz ±20Hz. |
| LSB Freq: Set radio to CH 20 LSB mode. | Connect frequency counter to TP3. | L22 | 16.50750 MHz ±20Hz. |
| FREQUENCY COUNTER: Set mode to AM RX CH. 20 | - | VC1 on Counter PCB | Adjust VC1 on counter PCB for correct reading on display. |
| SETTINGS | CONNECTION | ADJUST | ADJUST FOR |
|---|---|---|---|
| AM Sensitivity: Set radio to CH 19 AM RX MODE.Clarifier setting at 12 o’clock.RF Gain fully clockwise, SQ fully counter clockwise. VOL control at 2 o’clock. Output Frequency 27.185 MHz, MOD 30%. Connect AF VTVM or scope across speaker terminals. | Connect RF SG to antenna jack | (in order) L2, L3, L5, L6, L7, L8, L9, L10 | Audio output > 2V@10dB S/N. |
| AM Sensitivity: Set radio to CH 19 AM RX MODE.Clarifier setting at 12 o’clock.RF Gain fully clockwise, SQ fully counter clockwise. VOL control at 2 o’clock. Output Frequency 27.185 MHz, MOD 30%. Connect AF VTVM or scope across speaker terminals. | Connect RF SG to antenna jack | L6, L7 | Balance between CH 1 and CH 40 |
| USB Sensitivity: Set radio to CH 19 USB mode.VOL control fully clockwise.RF SG setting to 27.186 MHz @ 0.5 uVMOD to off | Same as above | L11, L12 | Audio output > 2VS/N 10 dB |
| LSB Sensitivity:Set radio to CH 19 LSB mode.VOL control fully clockwise.RF SG setting to 27.184 MHz @ 0.5 uVMOD to off | Connect AF VTVM or scope to IC2 Pin 7. RF Generator to ANT Jack | L11, L12 | Adjust for maximum audio output. |
| NB Adjust: Set radio to CH 20 AM mode RF SG setting 27.215 MHz @ 1000uV MOD 30%, NB/ANL switch on. | Connect Voltmeter to TP1 | L1 | DC voltage to max.(>2.0V) |
| AM Squelch: Set radio to CH 19 AM mode SQ control fully clockwise. RF SG setting 10 mV, MOD 30% | - | VR4 | Adjust very slowly until squelch just closes |
| SSB Squelch: Set radio to CH 19 USB mode.SQ control fully clockwise.RF SG setting 10 mV | - | VR3 | Adjust very slowly until squelch just closes |
| AM S-Meter: Set radio to CH 19 AM mode. Meter switch at S/RF position. RF SG setting to 27.185 MHz @ 100 uVMOD 30%, | - | VR1 | Adjust needle on S-Meter to “9” on the S scale |
| SSB S-Meter: Set radio to CH 19 USB mode.S/RF switch at S/RF position.RF SG setting 27.186 Mhz, MOD off 100 uV | - | VR2 | Adjust needle on S-Meter to “9” on the S scale |
| SETTINGS | CONNECTION | ADJUST | ADJUST FOR |
|---|---|---|---|
| TX Frequency: OffsetSet radio to CH 20 LSB TX mode. NOTE: If the radio has the clarifier mod done skip this step. | Connect frequency counter to TP3 | VR7 | 16.50750 MHz ±20Hz. |
| AM OSC: Set radio to CH 20 AM TX mode. | Connect frequency counter to TP5 | L23 | 10.69500 MHz ±20Hz. |
| USB OSC: Set radio to CH 20 USB TX mode. | Connect frequency counter to TP6. | L24 | 10.69250 MHz ±20Hz. |
| LSB OSC: Set radio to CH 20 LSB TX mode. | Connect FC to TP6. | L25 | 10.69750 MHz ±20Hz. |
| BIAS Current: Set radio to CH 20 USB TX mode. MOD off. | Connect current meter to TP7(+) and TP9(-) | VR12 | 50 mA |
| BIAS Current: Set radio to CH 20 USB TX mode. MOD off. | Connect current meter to TP7(+) and TP8(-) | VR10 | 100 mA |
| SETTINGS | CONNECTION | ADJUST | ADJUST FOR |
|---|---|---|---|
| SSB APC: Set radio to CH 20, USB TX mode. MOD off. | Connect Voltmeter to TP7. | VR17 | DC12.5V |
| SSB TX Power: Set radio to CH 20, Mike Gain max USB TX mode. AF signal 30 mV, 1 KHz to microphone. | Connect RF power meter to antenna jack. AF SG to microphone. | L40, L42, L43, L44 | Adjust for max. power with min. spurious emission |
| SSB TX Power: Set radio to CH 20, Mike Gain max USB TX mode. AF signal 30 mV, 1 KHz to microphone. | Connect RF power meter to antenna jack. AF SG to microphone. | L40, L42 | Balance Power Between CH 1 and CH 40. |
| SSB ALC: Audio signal 30 mV, 1 KHz to microphone.Set radio to CH 20, USB TX mode. | Connect wattmeter to ANT output. Set RF Power control fully clockwise. | VR13 | Adjust for 12 Watts output |
| SSB Carrier: BalanceSet radio to CH 20, USB TX mode. Mic Gain off. | Connect wattmeter to ANT output. Connect scope to Antenna Connector. | VR6 | Spurious Emission To Minimum. |
| AM TX Power: Set radio to CH 20 AM TX mode. No MOD. | Connect wattmeter to ANT output. Set RF Power control fully clockwise. | VR14 | Adjust for 4.0 watts |
| AM TX Power: Set radio to CH 20 AM TX mode. No MOD. | Connect wattmeter to ANT output.Then set RF Power control fully counter clockwise | VR18 | Adjust for 1.0 watts |
| RF Power Meter: Set radio to CH 20 AM TX mode. Mod off. | Connect wattmeter to ANT output. | VR9 | Adjust RF Power meter to “4” on PWR scale. |
| AM Modulation: Set radio to CH 20 TX mode. Audio signal 30 mV, 1 KHz to microphone. Set Mic Gain Fully Clockwise. | Connect AF SG to microphone input. | VR16 | Adjust for total 100% modulation |
| Modulation Meter Adjust: Set Meter mode switch to MOD. Set radio to CH 20 TX mode. Audio signal 30 mV, 1 KHz to microphone. Set Mic Gain Fully Clockwise. | Connect AF SG to microphone input. | VR15 | Adjust for 100% on radio’s modulation meter. |