Microprocessor Squelch Control; S-Meter Squelch Control - Kenwood TM-942A Instruction Manual
144/440/1200 mhz fm tribander/multi bander
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Also See for TM-942A:
- Service manual (47 pages) ,
- Instruction manual (106 pages) ,
- Instruction manual (60 pages)
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Microprocessor Squelch Control
Squelch operation may be controlled by the
microprocessor to automatically select the
squelch threshold without touching the SQL
control. When this function is selected, you do
not need to adjust the SQL control. This function
can be set for each band.
() Turn the POWER switch OFF.
[a]
28
Press and hold the MHz key (Tuning control), and
press the POWER switch ON.
Press the BAND SEL key for the band in which
the function is to be set.
Use the Tuning contro! to select a vacant
frequency.
Press and hold the MUTE key for longer than one
second.
This band is now set for microprocessor
controlled SQL. To. set another band, repeat steps
3 to 5.
To cancel microprocessor controlled squelch,
switch the Power OFF and perform step 2.
Note
1
This function cannot be set if the LOCK function is ON.
2
Repeat steps 4 and 5 to reset the microprocessor squelch
control. This may be necessary if a different antenna or
operating location is used, for example.
S-Meter Squelch Control
[F]
@)@)
©)
The typical method of controlling squelch ona
receiver is by detecting the reduction in the
background noise level, or quieting, caused by the
presence of a signal. This method is good, but
does not allow precise threshold control.
By
changing to S-Meter squelch control you can set
the squelch threshold so that it does not open
until a specific S-Meter reading is obtained.
This function can be set for each band.
Press the BAND SEL key for the band in which
the function is to be set.
Turn the POWER switch OFF.
Press and hold the LOW key, and press the
POWER switch ON.
Turn the SQL control to set the threshold level.
You can check the setting with the S-meter
indicator.
2) (Hold)
WL
Repeat steps 1 to 4 for each band.
Repeat steps 2 and 3 to return to noise activated
squelch.
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