FT-252 O
peraTing
M
anual
51
standards take this into account), if you find that your receiver squelch does not open
when both you and the other station are using a common DCS code, you or the other
station (but not both) can try the following:
1. Press the
[
SET/ATS
]
key to enter the Set mode.
2. Rotate the
DIAL
knob or press the
[
p
]/[
q
]
key to select
Set Mode Item 14:
DCS.N
/
R
.
3. Press the
[
SET/ATS
]
key momentarily, then rotate the
DIAL
knob or press the
[
p
]/[
q
]
key to select one of the
following modes:
T
/
RX N
: Encoder, Normal; Decoder, Normal
RX R
:
Encoder, Normal; Decoder, Reverse (Inverted)
TX R
: Encoder, Reverse (Inverted); Decoder, Normal
T
/
RX R
: Encoder, Reverse (Inverted); Decoder, Reverse (Inverted)
4. When you have made your selection, press the
PTT
switch to save the new setting
and exit to normal operation.
5. Remember to restore the default setting to “
T
/
RX N
” (Encoder; Normal, Decoder;
Normal) when done.
Changing the TX Deviation Level
In many areas of the world, channel congestion has required that operating channels be
closely spaced. In such operating environments, it often is required that operators use
reduced deviation levels, to reduce the potential for interference to users on adjacent
channels. The
FT-252
includes a simple method of accomplishing this:
1. Press the
[
SET/ATS
]
key to enter the Set mode.
2. Rotate the
DIAL
knob or press the
[
p
]/[
q
]
key to select
Set Mode Item 45:
WID.NAR
.
3. Press the
[
SET/ATS
]
key momentarily to enable adjust
-
ment of this Set Mode Item.
4. Rotate the
DIAL
knob or press the
[
p
]/[
q
]
key to set this Set Mode Item to “
NAR-
ROW
.” In this configuration (HALF DEVIATION active), the transmitter’s devia
-
tion will be approximately ±2.5 kHz, and the received audio output level will be
increased, for easier listening on the narrow signal.
5. When you have made your selection, press the
PTT
switch to save the new setting
and exit to normal operation.
The “normal” setting for the deviation (when this Menu Item is set to WIDE) is ±5
kHz.
Miscellaneous Settings
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