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47
CUSTOMIZING TRANSMIT SIGNAL
CHARACTERISTICS (SSB/AM)
The quality of your transmitted signal is important
regardless which on-the-air activity you pursue.
However, its easy to be casual and overlook this fact
since you dont listen to your own signal. The following
sub-sections provide information that will help you tailor
your transmitted signal.
Changing Transmit Bandwidth
Transmit bandwidth is modified via Menu No. 29
(TX.WIDTH). The available selections include:
1800, 2000, 2300, 2600, and 3000 Hz
The default is 2300 Hz. Consult the Bandwidth/
Bandshift Table for additional data. When the
Speech Processor is switched ON, the bandwidth
changes as shown in this table; however, displayed
values do not change.
Transmit Bandshift
Transmit bandshift is modified via Menu No. 30
(TX.SHIFT). The available selections include:
0, 100, 200, 300, 400, and 500 Hz
The default is 300 Hz. Consult the Bandwidth/
Bandshift Table for additional data. When the
Speech Processor is switched ON, the bandwidth
changes as shown in this table; however, displayed
values do not change.
Equalizing Transmit Audio
Press [TX EQ.] to toggle the transmit equalizer ON
or OFF. To change transmit frequency
characteristics, access Menu No. 31 (TX EQ.). The
available selections include:
High boost (H)
Comb filter (C)
Bass boost (B)
The default is High Boost.
Microphone AGC
While transmitting, Microphone AGC helps to
prevent distortion due to overly high audio input. It is
disabled while using CW or FSK.
7 OPERATING AIDS
Function Selections Default
Menu
No.
Microphone
AGC Release
Time
22 0: Slow
1: Med
2: Fast
1: Med
Speech Processor
OFF
TX
Bandshift
Setting
(Hz)
(Menu
No. 30)
New
Lower
Cutoff
Freq.
(Hz)
Resulting
Upper
Cutoff
Freq.
(kHz)
New
Band-
width
(kHz)
Speech Processor
ON
1.8
2.0
2.3
2.6
3.0
1.8
2.0
2.3
2.6
3.0
1.8
2.0
2.3
2.6
3.0
1.8
2.0
2.3
2.6
3.0
1.8
2.0
2.3
2.6
3.0
1.8
2.0
2.3
2.6
3.0
0
100
200
300
400
500
1.8
2.0
2.3
2.6
3.0
1.9
2.1
2.4
2.7
3.1
2.0
2.2
2.5
2.8
3.2
2.1
2.3
2.6
2.9
3.3
2.2
2.4
2.7
3.0
3.4
2.3
2.5
2.8
3.1
3.5
200
300
400
500
1.6
1.8
2.1
2.4
2.6
1.7
1.9
2.2
2.6
2.6
1.8
2.0
2.3
2.6
2.6
1.8
2.0
2.3
2.6
2.6
1.8
2.0
2.3
2.6
2.6
1.8
2.0
2.3
2.6
2.6
TX
Bandwidth
Setting
(kHz)
(Menu
No. 29)
BANDWIDTH/ BANDSHIFT TABLE
53


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