Kenwood TS-480SAT User Manual Page 46

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38
8 COMMUNICATING AIDS
CUSTOMIZING TRANSMISSION SIGNAL
CHARACTERISTICS
The quality of your transmission signal is important,
regardless of which on-air activity you pursue.
However, it is easy to be casual and overlook this fact
since you don’t listen to your own signal.
The following sub-sections provide information that
will help you tailor your transmission signal.
TX Filter Bandwidth (SSB/ AM)
Use Menu No. 20 to select one of the following TX
filter bandwidths: 2.0 kHz or 2.4 kHz (default).
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0.2zHk0.2zH0052~005
4.2zHk4.2zH0072~003
TX Equalizer (SSB/ FM/ AM)
Use Menu No. 19 to change the transmission
frequency characteristics of your signal. You can
select from one of 6 different transmission profiles
including the default flat response. Selecting any of
the following items from the Menu causes “EQ
ss
ss
s
T
to appear on the display.
Off (oFF):
The flat frequency response for SSB, FM, and
AM (default).
High boost 1 (Hb1)/ High boost 2 (Hb2):
Emphasizes higher audio frequencies; effective
for a bassy voice. High boost 2 does not
reduce the low frequency as much as High
boost 1.
Formant pass (FP):
Improves clarity by suppressing audio
frequencies outside the normal voice frequency
range.
Bass boost 1 (bb1)/ Bass boost 2 (bb2):
Emphasizes lower audio frequencies; effective
for a voice with more high frequency
components. Bass boost 2 emphasises more
low frequency response.
Conventional (c):
Emphasizes by 3 dB frequencies at 600 Hz
and higher.
User (U):
Reserved for the optional ARCP software.
Off (oFF) is programmed at the factory as a
default.
Frequency Response Curves
TRANSMIT INHIBIT
Transmit Inhibit prevents the transceiver from being
placed in transmission mode. No signal can be
transmitted when this function is ON even if Mic [PTT]
is pressed.
TX Inhibit OFF: Transmission is allowed.
TX Inhibit ON: Transmission is not allowed.
Switch the function ON or OFF via Menu No. 55.
The default is OFF.
BUSY LOCKOUT
Busy Lockout prevents the transceiver from being
placed in transmit mode. Transmission is not allowed
if the current operating frequency is busy (in other
words, the squelch is open).
Busy Lockout OFF: Transmission is allowed.
Busy Lockout ON: Transmission is not allowed.
Switch the function ON or OFF via Menu No. 58.
The default is OFF.
CHANGING FREQUENCY WHILE TRANSMITTING
Moving your frequency while transmitting is usually
an unwise practice due to the risk of interfering with
other stations. However, if necessary, by using the
Tuning control you can change the operating
frequency while transmitting. You also can change
the XIT offset frequency while in transmission mode.
While transmitting, if you select a frequency outside
the transmission frequency range, the transceiver is
automatically forced to return to the reception mode.
If you selected transmission mode by pressing Mic
[PTT], transmission will not resume until you select a
frequency inside the transmission frequency range, at
which time you must release and press Mic [PTT]
again.
0.7
2.2
Amplitude
Audio
frequency
(kHz)
Bass boost (bb1, bb2)
High boost (Hb1, Hb2)
Off (oFF)
Conventional (c)
Formant pass (FP)
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