Icom IC-7610 Instruction Manual basic - Page 52
Emergency mode (Tuner), Using an external antenna tuner
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7 ANTENNA TUNER OPERATION About an external antenna tuner (Continued) DDUsing an external antenna tuner When you use a non-Icom external antenna tuner, be sure to turn OFF the internal antenna tuner before connecting it. Otherwise, the tuning may fail because both antenna tuners (internal and external) will simultaneously start tuning. See the antenna tuner's instruction manual for details. NOTE: Be sure not to connect the antenna tuner without an antenna connected. This could damage the transceiver or external antenna tuner. TIP: If the SWR is not reduced to 2:1 after retuning, see "If the tuner cannot tune the antenna" on page 7-3 for details. Emergency mode (Tuner) The Emergency mode (Tuner) enables you to use the internal antenna tuner in an emergency situation, but limits the maximum output power to 50 W. In an emergency situation, where the only antenna you have has a high SWR, you can use the antenna tuner even if the SWR is more than 3:1. 1. Display the EMERGENCY screen. MENU » SET > Others > Emergency 2. Touch "Tuner." 4. Touch "" to restart the transceiver. 3. Touch [OK]. ••"✓" is inserted in the Tuner check box. ••The transceiver enters the Emergency mode (Tuner). (E-TUN): The internal tuner is ON in the Emergency mode. LWhile in the Emergency mode (Tuner), you cannot turn the tuner ON nor OFF by pushing TUNER . TIP: To exit the Emergency mode: Touch "Tuner" again on the EMERGENCY screen to clear "✓" from the Tuner check box, and then, touch "" to restart the transceiver. 7-4