7
ANTENNA TUNER OPERATION
7-2
About the internal antenna tuner
The internal automatic antenna tuner automatically
matches the transceiver to the antenna within the
range of 16.7 ~ 150 Ω (SWR of less than 1:3).
After the tuner matches an antenna, the latching relay
combinations are memorized as a preset point for
each frequency range (100 kHz steps). Therefore,
when you change the frequency range, the latching
relay combinations are automatically preset to the
memorized point for fast tuning.
L
When you install a new antenna, or you want to
change the antenna settings, you can clear the all
of the internal antenna tuner preset points with the
“<<Preset Memory Clear>>” item on the TUNER set
MENU
» SET > Function > Tuner >
<<Preset Memory Clear>>
NOTE:
When the transceiver receives a strong
physical shock, the internal latching relays may be
returned to an unlatched condition. In that case,
push
TUNER
to turn OFF the tuner, then turn it ON
again to reset all latching relays.
About the Antenna memory settings (Continued)
D
Selecting the antenna type
Select the antenna connecting options between
“Connect Receive Antenna” (RX-ANT is displayed as
the type) and “Connect External RX Device” (RX-I/O
is displayed as the type.)
L
“Connect Receive Antenna” is set as the default.
1. Display the ANTENNA screen.
MENU
»
ANTENNA
2. Touch [TYPE].
Antenna type
•The TYPE SET screen is displayed.
3. Touch “RX-ANT Connectors.”
4. Select an option.
(Example: Connect External RX Device)
•
Connect Receive Antenna
:
Select this option to connect a receive antenna
to [RX-ANT IN].
“R” is displayed next to the antenna number when
[RX-ANT] is touched.
•
Connect External RX Device
:
Select this option to connect an external receive
device, such as a filter or preamplifier to [RX-ANT
OUT] and [RX-ANT IN].
is displayed next to the antenna number when
[RX-I/O] is touched.
L
See the illustration in “RX-ANT IN/OUT” to the right
for the connector details.
5. To close the TYPE SET screen, push
EXIT
.
Содержание IC-7610
Страница 1: ...BASIC MANUAL i7610 HF 50 MHz TRANSCEIVER...