Page 42
O
PERATING
M
ANUAL
E
XPANDED
T
UNING
S
CALE
The bargraph segment meter above the MAIN VFO-
A frequency display serves as a triple mode enhanced
tuning scale. By default, it displays relative Clarifier off-
set, and as you rotate the
CLAR
knob (either Rx or Tx
Clarifier), the normally centered marker segment
moves left or right, indicating the relative displaced
(“clarified”) Rx or Tx frequency from the original. Be
sure to see page 49 for more details on Clarifier op-
eration.
Alternately, you can have the segments expand
outwardly as you tune either direction from the nearest
displayed frequency. This lets you view tuning incre-
ments smaller than 10 Hz (the maximum display reso-
lution).
O
PERATION
R
ECEIVING
The rate and distance of segment displacement in
either mode are proportional to the selected tuning step
size and depend on whether or not the [
FAST
] button
is engaged. The tuning meter mode is selected by
menu
selection 3-2
.
AM S
YNCHRONOUS
T
UNING
Audio distortion of AM stations due to carrier fading
is common. Synchronous tuning reduces this phenom-
enon by receiving the station in “LSB” while
re-inject-
ing
an unfading carrier. The benefit of this technique is
that the re-injected carrier is phase-locked to carrier of
the original station, reducing the effects of fading and
improving signal fidelity over that of conventional AM
detection.
To activate AM synchronous detection, press the
[
AM
] button
twice
(so the green LED inside the button
blinks). The tuning meter format changes to that be-
low. Slowly tune across the signal until the lone center
segment appears (see below).
AM SYNCHRONOUS TUNING
When the VRF feature is engaged, the segments
briefly indicate the peak position for the narrow band-
pass “preselector” when you are turning the
VRF/MEM
CH
knob. Be sure to see page 44 for more details on
VRF operation.
S
UB
-D
ISPLAY
M
ODE
S
ELECTION
The small window to the right of the main frequency
display can contain several different readouts, selected
by
menu selection 3-5
.
These include:
Clarifier
- Displays “clari-
fied” frequency as offset from
the original frequency.
Channel Freq.
- Displays
the operating frequency con-
tained in the current memory
channel, providing “What if?” information while you are
operating on a VFO.
Offset
- Displays the fre-
quency difference between the
Main VFO and Sub VFO fre-
quencies.
A1 (CW) Pitch
- Displays
the current CW pitch setting.
Whichever selection you choose, if you activate the
Clarifier during operation, its display will over-ride any
other (non-Clarifier) settings you may have set via
menu
selection 3-5
.
Summary of Contents for MARK-V FT-100MP
Page 119: ......
