Vertex Standard FT-1000MP - Manual (Page 25)

Page 23 O
PERATING
M
ANUAL
MIC PROC Knob
The inner MIC control adjusts the microphone in-
put level for (non-processed) SSB and AM transmis-
sion.
The outer PROC control sets the compression (in-
put) level of the transmitter RF speech processor in
the SSB modes, when activated by the button with the
same name.
RF PWR Knob
This control adjusts the transmitter’s output power
in all modes. The adjustment range is from approxi-
mately 5 to 100 watts, except in the AM mode, where
the permitted carrier level is about 5 to 25 watts. This
knob also controls the carrier level for CW transmis-
sion. In setting the output power, the ALC function of
the meter should always be monitored, to avoid
overdriving the transmitter final amplifier.
In the “Class A” SSB operating mode, the adjust-
ment range for power output will be between approxi-
mately 5 and 25 watts.
PROC Button
This button enables the RF speech processor for
SSB transmission. Processing level is set by the outer
control with the same name. While activated, the LED
in this button glows red.
MONI Button
This orange button enables the transmit (RF) moni-
tor in all modes (except CW, in which the monitor func-
tion is always on, to produce the sidetone). While acti-
vated, the LED in this button glows red.
SUB AF Knob
The SUB AF control adjusts the audio volume of
the sub receiver VFO in the speaker or headphones.
The AF GAIN control, located above, and this SUB
AF control can be rotated to adjust the relative bal-
ance of receiver audio between the two receiver chan-
nels during dual reception.
Menu selection 2-8 (AF GAin) allows the SUB AF
control to be changed into a “Balance” control for the
two audio channels, if desired. In this case, the AF GAIN
control (see next column) will adjust the volume level
for both the Main and Sub receivers, while the SUB AF
control will control the balance. See page 101 for de-
tails.
MONI Knob
When activated by the [MONI] button (above), the
audio level of the transmit RF monitor during transmis-
sion (relative to the AF GAIN control) is adjusted by
this control.
F
RONT
P
ANEL
C
ONTROLS
SQL Knob
This control sets the signal level threshold at which
main VFO-A receiver audio is muted (and the green
“MAIN BUSY” display indicator turns off), in all modes.
This control is normally kept fully counter-clockwise,
except when scanning and during FM operation.
AF GAIN RF GAIN Knob
The inner AF GAIN control adjusts the audio vol-
ume of the main receiver VFO in the speaker or head-
phones.
The outer RF GAIN control adjusts the receiver
signal level in front of the main receiver 1st mixer (via
PIN diodes), and also the gain of the main receiver IF
amplifiers.
It is normally set fully clockwise for maximum sensi-
tivity. When rotated counter-clockwise, the S-meter mini-
mum deflection point will move up the scale. The peak
deflection for a particular signal will remain the same if it
is greater than the level set by this control, but the main
receiver will be less sensitive to weaker signals.
This control also affects the SQL setting for main
VFO-A, and should be preset fully clockwise when set-
ting the squelch threshold for the VFO or on a recalled
memory.
METER Selector Switches
These switches determine the function of the mul-
tifunction meter during transmission. The meanings of
the abbreviations are as follows:
IC/SWR - Final amplifier collector current
(Amps) and Standing Wave Ratio
(forward: reflected).
ALC/COMP - Relative Automatic Level Control
voltage and RF speech compressor
level (in dB, for SSB modes only).
VCC/MIC - Final amplifier collector voltage and
microphone gain input level.
The meter indicates power output and the selected
parameter during transmission, and signal strength in
S-units during reception (on the main receiver). Each
S-unit is approximately 6 dB.
ATT Selector Knob
This knob inserts 6, 12, or 18 dB (1, 2, or 3 S-units)
of attenuation before the mixer to suppress band noise
and reduce the possibility of overload from very strong
signals.
IPO Button
The Intercept Point Optimization button may be
used to set optimum receiver front end characteristics
for a strong environment. Selecting IPO bypasses the
front end RF amplifier and feeds the received signals
directly to the first mixer.