Yaesu FT-950 Operating Manual page 125

I
NSTALLATION OF
FC-40 E
XTERNAL
Setup the FT-950
The optional FC-40 Automatic Antenna Tuner provides automatic tuning of a coaxial line to present nominal 50-ohm
impedance to the FT-950's ANT jack.
Before operation can begin, you must instruct the FT-950's microprocessor that the FC-40 is being used. This is done using
the Menu Mode:
1. Press the [ MENU ] button momentarily, to engage the
Menu mode.
2. Rotate the [ SELECT ] knob to select the Menu Item
"110 TGEN EXT TUN
110 TGEN EXT TUN 110 TGEN EXT TUN". 110 TGEN EXT TUN 110 TGEN EXT TUN
A :
DVICE
Press the [ SELECT ] knob momentarily to toggle the
Menu item display between "110 TGEN
TUN TUN". TUN
TUN TUN
3. Rotate the [ CLAR/VFO-B ] knob to select "Etu
ternal Tuner)".
4. Press and hold in the [ MENU ] button for one second
to save the new setting and exit to normal operation.
Operation
1. Press the [ TUNE ] button briefly to activate the Auto-
matic Antenna Tuner.
2. The " " icon will appear in the display.
3. If the transceiver frequency is out of the amateur band,
the " " icon will not appear.
4. Press and hold the [ TUNE ] button for one second to
begin automatic tuning. The transmitter will be en-
gaged, and the "
is in progress.
5. Tuning will stop automatically when a low SWR is
achieved. You may Press and hold the [ TUNE ] button
for one second while tuning is in progress, to cancel
the automatic tuning.
6. To disable the Automatic Antenna Tuner, press the
[ TUNE ] button briefly again.
N :
OTE
Please connect a good earth ground to the GND termi-
nal of FC-40.
The carrier signal transmits continuously while tuning
is in progress. Please monitor the operating frequency
before beginning the tuning process. Be sure you are
not interfering with others who may already be using
the frequency.
It is normal to hear the sound of the relays while tun-
ing is in progress.
If the impedance cannot be matched by the FC-40 bet-
ter than 2:1, and the "
processor will not retain the tuning data for that fre-
quency, as the FC-40 presumes that you will want to
adjust or repair your antenna system to correct the high
SWR condition.
FT-950 O
PERATING
A
UTOMATIC
110 TGEN" and "EXT
110 TGEN 110 TGEN EXT EXT EXT
110 TGEN EXT
Etu (Ex-
Etu Etu
Etu
" icon will blink while tuning
" icon blinks, the micro-
M
ANUAL
O
PTIONAL
A T
NTENNA UNER
[ SELECT ] Knob
[ TUNE ] Button
A
CCESSORIES
(
W A
FOR IRE NTENNA
[ MENU ] Button [ CLAR/VFO-B ] Knob
)
Page 123