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Yaesu FT-857D Manual

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29FT-857D Operating Manual
FRONT PANEL CONTROL & SWITCHES
MULTI FUNCTION KEY DETAIL
Multi Function Row “m”
(
MFm
) [
IPO, ATT, NAR
]
[
A
]
Key: IPO
Press the
[
A
](
IPO
)
key to bypass the receiver preamplifier, thereby ac-
tivating Intercept Point Optimization for improved overload charac-
teristics while operating on the HF and 50 MHz bands.
The IPO feature does not function on 144/430 MHz.
[
B
]
Key: ATT
Press the
[
B
](
ATT
)
key to engage the receiver front-end attenuator,
which will reduce all signals and noise by approximately 10 dB. The
ATT feature does not function on 144/430 MHz.
[
C
]
Key: NAR
Press the
[
C
](
NAR
)
key to select the low-deviation mode for HF FM
operation on 29 MHz.
Multi Function Row “n”
(
MFn
) [
CFIL,–––,–––
]
[
A
]
Key: CFIL
Press the
[
A
](
CFIL
)
key to select the 2.4 kHz ceramic IF filter.
[
B
]
Key
Press the
[
B
]
key to select the optional IF filter which is located on the
“FIL-1” (Optional Filter 1) slot on the Main Unit.
When an optional filter is not installed on the “FIL-1” slot, this key
function is disabled, and its label is “N/A.”
[
C
]
Key
Press the
[
C
]
key to select the optional IF filter which is located on the
“FIL-2” (Optional Filter 2) slot on the Main Unit.
When an optional filter is not installed on the “FIL-2” slot, this key
function is disabled, and its label is “N/A.”
Multi Function Row “o”
(
MFo
) [
PLY1, PLY2, PLY3
]
[
A
]
Key: PLY1
Press the
[
A
](
PLY1
)
key to send the CW message which is memorized
in Keyer BEACON TEXT 1.
Press and hold in the
[
A
](
PLY1
)
key for one second to recall Menu
Mode No-011
[
BEACON TEXT 1
]
(for stores the message for the Bea-
con).
[
B
]
Key: PLY2
Press the
[
B
](
PLY2
)
key to send the CW message which is memorized
in Keyer BEACON TEXT 2.
[
C
]
Key: PLY3
Press the
[
C
](
PLY3
)
key to send the CW message which is memorized
in Keyer BEACON TEXT 3.

[
A
][
B
][
C
]

[
A
][
B
][
C
]

[
A
][
B
][
C
]
… 31 …


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