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Yaesu FTDX1200 Manual

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Page 58 FT
DX
1200 OPERATING MANUAL
T
OOLS
FOR
C
OMFORTABLE
AND
E
FFECTIVE
R
ECEPTION
RF GAIN
The 5F Gain control provides manual adjustment of the gain levels for the receiver 5F and IF stages, to account for
noise and signal strength conditions at the moment.
1. The
[
RF/SQL
]
knob should, initially, be rotated
to the fully clockwise position. This is the point of
maximum sensitivity.
. Counter-clockwise rotation of the
[
RF/SQL
]
knob
will gradually reduce the system gain.
A
DVICE:
$s the
[
RF/SQL
]
knob is rotated counterclockwise
to reduce the gain, the S-meter reading will rise. This
indicates that the $GC voltage being applied to the
receiver is increasing this causes a reduction in re-
ceiver gain).
5otating the
[
RF/SQL
]
knob control to the fully
counter-clockwise position will essentially disable
the receiver, as the gain will be greatly reduced. In
this case, the S-meter will appear to be “pegged”
against the right edge of the analog S-meter scale.
Q
UICK POINT:
5eception freTuently can be optimi]ed by rotating
the
[
RF/SQL
]
knob slightly counter-clockwise to the
point where the “stationary” meter indication is set
just about the same as the incoming noise level. This
will reduce the 5F gain to ¿nd a level of improved
signal to noise ratio.
The 5F Gain control, along with the I32 and the $t-
tenuator features, all affect the system receiver gain
in different ways. The I32 generally should be the
¿rst feature engaged when dealing with a high noise
level, or a crowded, high-level signal environment.
$lso, the I32 generally should be the first feature
engaged, if the freTuency is low enough to allow the
preampli¿er to be bypassed. Thereafter, the 5F Gain
and $ttenuator features may be employed to provide
precise, delicate adjustment of the receiver gain to
fully optimi]e performance.
[
RF/SQL
]
Knob
Switching the Knob Functions
You may switch the
[
RF/SQL
]
knob from the 5F Gain Function to the STuelch Function via 0enu item 038.
1. 3ress the
[
MENU
]
button to engage the 0enu
mode.
. 5otate the
[
VFO-B/CLAR
]
knob or press the
S
T
button) to select 0enu item “
038 RF
/
SQL
VR
”, then press the
[
SELECT
]
button.
3. 5otate the
[
VFO-B/CLAR
]
knob or press the
S
T
button) to select “
SQL
” replacing the de-
fault “
RF
” selection).
4. 3ress the
[
SELECT
]
button, then press the
[
MENU
]
button to lock in the new setting and
exit to normal operation.
[
VFO-B/CLAR
]
Knob
[
S
/
T
]
Button
[
SELECT
]
Button
[
MENU
]
Button
… 60 …


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  • Green Light on VFO A and MEM is flashing and no audio. Even tried Factory Reset and still flashing. How do I fix this? Submitted on 6-12-2022 at 07:37

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