Rohde & Schwarz 890 Series - Page 374

V L F > H F R E C E I V E R S f R & S E K 8 9 5 / R & S E K 8 9 6
User Manual f Special Functions
A3.7.21 Switching the Squelch Func>
tion On or Off
Command syntax:
Code: SQ
Parameter: .................... a
Possible entries / replies
0 = switch off (OFF)
1 = switch on (ON)
Example 1:
Inquiry of status for squelch function
Command = rAxxSQ??
Æ Reply = rAxxSQ0?
The squelch function is switched off.
Example 2:
Switching the squelch function on
Command = rAxxSQ1?
The squelch function is switched on and the
squelch type acc. to A3.7.22 is activated.
A3.7.22 Setting the Squelch Func>
tion Type
Command syntax:
Code: SQT
Parameter: .................... a
Possible entries / replies
0 = level squelch
1 = syllabic squelch
2 = combined level and syllabic squelch
Note:
Make sure that the squelch function (see
3.7.21) is switched on.
Example 1:
Inquiry of the current type of squelch function
Command = rAxxSQT??
Æ Reply = rAxxSQT0?
The level squelch is activated.
Level squelch works as a function of prese>
lected level (see chapter 3.7.4) of the wanted
signal strength. Only when this threshold is ex>
ceeded will the audio signal be unmuted.
Example 2:
Setting the squelch function type to syllabic
squelch
Command = rAxxSQT1?
Syllabic squelch acts upon the voice part of
wanted signal. I.e. the wanted signal is checked
for voice signal parts, and only if such voice sig>
nal parts are contained, will the audio signal be
unmuted.
6164.0717.02_01
> A3.34 >