Automatic Antenna Tuner; Operation; D Ah-4 Operation - Icom IC-7000 Instruction Manual

10
ANTENNA TUNER OPERATION
The AH-4 matches the IC-7000 to a long wire antenna
more than 7 m/23 ft long (3.5 MHz and above).
antenna connection details.
AH-4 etting example:
For mobile operation
For outdoor operation
D
Tuning is required for each frequency.
re-tune the antenna before transmitting when you
change the frequency—even slightly.
q Set the desired frequency in an HF band.
ham bands.
w Hold down [TUNER/CALL] for 1 second.
" indicator appears while tuning.
e "
" i n d i c a t o r s t ay s O N w h e n t u n i n g i s
complete.
indicator blinks, and the AH-4 is bypassed and the
antenna wire is connected to the antenna connector
on the transceiver directly.
r To bypass the AH-4 manually, push [TUNER/
CALL].
115

AUTOMATIC ANTENNA TUNER

Optional AH-2b
antenna element
Long wire
Hold down [MENU/GRP] for 1 second.
Selection from: M, S or G(Graphic)
Push [MENU/GRP] momentarily.
Selection from: S-1, S-2 or S-3
RDANGER!: HIGH VOLTAGE!
NEVER touch the antenna element while tuning or
transmitting.
NEVER operate the AH-4 without an antenna wire.
The tuner and transceiver will be damaged.
NEVER operate the AH-4 when it is ungrounded.
Tr a n s m i t t i n g b e fo r e t u n i n g m ay d a m a g e t h e
transceiver. Note that the AH-4 cannot tune when using
λ long wire or on a multiple of that frequency.
1
a ⁄
2
[TUNER/CALL]
to
CONVENIENT
The AH-4 is always tuned when the PTT is pushed
function removes the "hold down [TUNER/CALL]"
operation and activates first transmission on the
new frequency. This function is turned ON in the
miscellaneous (others) Set mode (p. 131).
"
Either Either
Y Y or Z Z
or