3
VL-2000 Operating Manual
Front Panel Controls & Switches
ATT
Switch
This switch activates a 3 dB input RF power attenua-
tor, to reduce excessive input power from the exciter.
It should be “on” if exciter output exceeds 100 watt
PEP, as is the case when using the
FT
DX
9000
series
transceiver. The LED will glow red, when this switch
is “on”.
Note
: This switch does not effect while transmitting.
INPUT
Switch
This switch selects the exciters which connected to
the
INPUT 1
and
INPUT 2
jacks on the rear panel.
The “
INPUT 1
” or “
INPUT 2
” LED will glow red to
indicate which exciter is in use.
Note
: This switch does not effect while transmitting.
PROTECT
LED
This LED blinks red when the Linear Amplifier is ab-
normal.
TUNE
Button
This is the on/off switch for the
VL-2000
’s Automatic
Antenna Tuner.
Press this button briefly, places the antenna tuner in
line between the transmitter final amplifier and the
antenna connector (The LED will glow red, and re-
ception is not affected).
Press and hold this button for 1/2 second, while re-
ceiving in an a mature band, activates the transmitter
for a few seconds while the Automatic Antenna Tuner
rematches the antenna system impedance for mini-
mum SWR. The LED will blink red when the antenna
tuning is processing.
Pressing this button briefly, while the Tuner is en-
gaged, will take the Automatic Antenna Tuner out of
the transmit line.
HI-SWR
LED
This LED blinks red when the antenna system is ab-
normally high SWR condition (over 3.0:1) that cannot
be resolved by the Automatic Antenna Tuner.
When this LED blinks, the exciter output delivers to
the antenna connector directly without through a lin-
ear amplifier.
Note
: Check to be sure that you have the correct an-
tenna selected on the current operating band when
this LED blinks red. If so, you will need to check the
condition of the antenna, its coaxial cable and/or the
connectors on the cable so as to locate and correct
fault.
ANT
Button
These momentary buttons select the antenna jack on
the rear panel, with the selection indicated by the red
LED in each button.
Note
: These buttons does not effect while transmit-
ting.
BAND
Button
These momentary buttons select the amateur band for
the operation, with the selection indicated by the LED
in each button.
If using the Yaesu transceiver with a BAND DATA
Cable, the
VL-2000
operation band will be remotely
controlled by the transceiver’s
BAND
switch.
Note
: These buttons does not effect while transmit-
ting.
Forefeet
These forefeet enable to extend the length of the fore-
foot for easy viewing by rotating the outer ring of the
forefeet.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.
