Icom IC-7760 handleiding
Handleiding
Je bekijkt pagina 57 van 100
7-4
BASIC MANUAL
ANTENNA TUNER OPERATION
7
7
The optional AH-730 antenna tuner matches the
IC-7760 to a long wire antenna more than 7 m/23 ft
long (1.8 MHz to 54 MHz).
R DANGER HIGH VOLTAGE! NEVER touch the
antenna element while tuning or transmitting. Always
install it in a secure place.
NEVER operate the AH-730 without an antenna
connected. The tuner and transceiver will be
damaged.
D Using the AH-730
1. Turn ON the transceiver.
2. Push
TUNER
to start tuning.
• The tuner reduces the SWR to less than 2:1 after 2~3
seconds.
L While tuning, a side tone is heard and the indicator
on
TUNER
blinks red.
L If the tuner cannot reduce the SWR to less than 2:1
after 15 seconds of tuning, the indicator goes out.
3. After matching, the indicator stops blinking and
lights white.
L When the long wire antenna cannot be matched,
the indicator goes out. In that case, the AH-730 is
bypassed and the wire is directly connected.
4. To start manual tuning while the indicator lights
white, hold down
TUNER
for 1 second.
5. To turn OFF (bypassed) the AH-730, push
TUNER
.
NOTE: When the wire antenna cannot be matched,
check the wire length and connection.
Note that the AH-730 cannot match a wire that is a
½λ long or on a multiple of that frequency.
About the external antenna tuner
D Using the IC-PW2
When you use the internal antenna tuner of the
IC-PW2, be sure to turn OFF the IC-7760’s internal
antenna tuner before connecting it.
To tune at the desired operating frequency, do manual
tuning on the IC-PW2.
• With the linked manual tuning function, the IC-7760
automatically starts transmitting at the same time.
L While tuning, you can select the displayed meter.
L To cancel the tuning, push
TUNER
on the IC-7760.
L See the IC-PW2 instruction manual for details.
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.
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 match the antenna” for
details. (p. 7-3)
Bekijk gratis de handleiding van Icom IC-7760, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Icom |
| Model | IC-7760 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 18538 MB |
