D Using An External Antenna Tuner; Emergency Mode (Tuner) - Icom IC-7610 Basic Manual

7
ANTENNA TUNER OPERATION
About an external antenna tuner (Continued)

D Using 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.

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.
» SET > Others > Emergency
MENU
2. Touch "Tuner."
3. Touch [OK].
• "✓" is inserted in the Tuner check box.
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.
4. Touch "<<Restart to SET>>" to restart the
transceiver.
• The transceiver enters the Emergency mode (Tuner).
(E-TUN): The internal tuner is ON in the
Emergency mode.
L While 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
"<<Restart to SET>>" to restart the transceiver.
7-4
.