Characteristics (Ssb/Am); Changing Transmit Bandwidth; Transmit Bandshift "0.0.0.0; Equalizing Transmit Audio - Kenwood TS-870S Instruction Manual
Intelligent digital enhanced communications system
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7 OPERATING AIDS
CUSTOMIZING TRANSMIT SIGNAL
CHARACTERISTICS (SSB/AM)
The quality of your transmitted signal is important
regardless which on-the-air activity you pursue.
However, it's easy to be casual and overiook this fact
since you don't 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:
»
G, 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.
Menu
'
No.
Selections
22
|0: Slow
| 1: Med
,2: Fast
Function
Default
4: Med
AGC Release
Microphone
|
Time
:
BANDWIDTH! BANDSHIFT TABLE
Speech Processor
Speech Processor
0.6!
618
18
200
16
; 20
| 20
1.8
2.3
2.3
2.1
26.
26
2.4
3.0
3.0
2.6
100
1.8
1.9
1.7
2.0
24 |
1.9
i 23
2.4
2.2
, 26
27
2.6
3.0
34
2.6
200
1.8
2.0
1.8
2.0
2.2
| 2.0
2.3
25
2.3
2.6
2.8
|
26
' 3.0
3.2
2.6
goo | 1.8
24
300 | 1.8
2.0
2.3
2.0
23°
26
23
26
| 29
2.6
i 23
2.7
2.3
| 26
3.0
26
[3.0
3.4
26
500
| 18
23
500
18
2.0
2.6
2.0
2.3
2.8
2.3
| 26
| 26
47
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