Before operation can begin, you must instruct the FTDX1200 microprocessor that the FC-40 is being used. This is done using the Menu Mode:

1. Press the [MENU] button to enter Menu mode. 2. Rotate the [VFO-B/CLAR] knob (or press the ▲ / ▼ button) to select Menu item "179 TUNER SELECT". 3. Press the [SELECT] button, then rotate the [VFO-B/CLAR] knob (or press the ▲ / ▼ button) to select "EXTERNAL". 4. Press the [SELECT] button. 5. Press the [MENU] button to save the new setting and exit to normal operation. Operation 1. Press the [TUNE] button briefly to activate the Automatic Antenna Tuner. 2. The "TUNER"] icon will appear in the TFT display. 3. Press and hold the [TUNE] button for one second to begin automatic tuning. The transmitter will be engaged, and the "TUNER" will blink while tuning is in progress. 4. Tuning will stop automatically when a low SWR is acheived. You may press and hold the [TUNE] button for one second while tuning is in progress, to cancel the automatic tuning. 5. To disable the Automatic Antenna Tuner, press the [TUNE] button briefly again.

NOTE Be sure to connect a good earth ground to the GND terminial of the FC-40. The carrier signals transmits continuously while tuning is in progress. Please monitor the operating frequency before beginning the tuning process. Be sure you are not interfering with others who may already be using the frequency. It is normal to hear the sound of the relays while tuning is in progress. If the impdedance cannot be matched by the FC-40 betteer than 2:1, and the "TUNER" icon blinks, the microprocessor will not retain the tuning data for that frequency, as the FC-40 presumes that you will want to adjust or repair your antenna system to correct the high SWR condition. End of "FC-40 Installation & Operation"