S Meter Squelch Control - Kenwood TM-732A Instruction Manual

144/440/430 mhz fm dual bander
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6. S Meter Squelch Control
The normal method of opening squelch on a receiver is
by detecting the noise level on the 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.
©
Function Selection
This function can be selected for both bands, if desired.
1. Press the VOL control on the band that you want to
set.
2. Press the F key for longer than 1 second, the F
indicator will begin to flash in the display. Then press
the LOW key while the F indicator is flashing.
3. When the SQL control is rotated the S-Meter
indicators will light up in the display. The Squelch
control can be turned until the S-Meter indicates the
minimum S-Meter level that will have to be obtained
before squelch will open.
Signals below this level will not open squelch.
To return to noise activated squelch repeat step
number 2.
The amount of time it takes for the squelch to close
again, in the S-Meter squelch mode, is determined by a
time delay circuit. This is to prevent the squelch from
closing during momentary signal dropouts.
The factory preset is 500 mseconds.
To change the
delay:
©
Delay Selection
Note: You must deactivate microprocessor controlled
squelch to program this function. See Page 32.
Microprocessor squelch control.
1. Hold down the F key, then press the LOW key.
2. Select the desired delay time by turning the tuning
control. (OFF, 125, 250, or 500)
3. Press any front panel key to return to the normal
display.
A quick method of determining which squelch mode is
active is to turn the squelch control. If the S-Meter
reading changes you are in the S-Meter squelch mode.
33

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