Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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Connection Control (Signalling only) CMU-K20/21/22/23/24
1115.6088.12 6.188 E-12
CONFigure:BSSignal[:CSWitched][:TCH]:LEVel:UNTimeslot < Level >
Unused Timeslot Level
PROCedure:BSSignal[:CSWitched][:TCH]:LEVel:UNTimeslot < Level >
<Level>
Description of parameters Def. value Def. unit FW vers.
–127 dB to +127 dB
Level in unused timeslot see below dB V1.15
Description of command Sig. State
This command determines the (relative) level in the unused timeslots.
The level range quoted above is restricted by the condition that the absolute level (calculated from the
used timeslot level and the relative level in the unused timeslots) must not exceed the level ranges of
the RF connectors.
Example:
With output connector RF2 and a default used timeslot level of –90 dBm, the
unused timeslot level can be set in the range –47 dB to +80 dB, corresponding
to an absolute level of –137 dBm to –10 dBm.
See note on
Current vs. default values
on p. 6.174 .
all
CONFigure:BSSignal[:CSWitched][:TCH][:SSLot]:TIMeslot <Timeslot>
Timeslot
<Timeslot>
Description of parameters Def. value Def. unit FW vers.
2 to 6 |
0 to 7
Number of timeslot with BATC setting
Number of timeslot with BOTC setting
3 – V1.15
Description of command Sig. State
This command determines the timeslot for the BS traffic channel. All GSM timeslots are available if
the control channel mode is set to BOTC (see command
CONFigure:BSSignal:CCH[:TX]:MODE
on
p. 6.186 ).
≠
CEST,
Q: all
Edit Hopping Sequence
CONFigure:BSSignal[:CSWitched][:TCH][:SSLot]:FHOPping:A <Channel>{,<Channel>}
CONFigure:BSSignal[:CSWitched][:TCH][:SSLot]:FHOPping:B <Channel>{,<Channel>}
CONFigure:BSSignal[:CSWitched][:TCH][:SSLot]:FHOPping:C <Channel>{,<Channel>}
CONFigure:BSSignal[:CSWitched][:TCH][:SSLot]:FHOPping:D <Channel>{,<Channel>}
<Channel>
Description of parameters Def. value Def. unit FW vers.
0 to 124,
955 to 1023 |
OFF
Sequence of up to 64 GSM channels, depending on the
GSM band used (example: GSM900),
undefined channel number
see
below
– 1.20
Description of command Sig. State
These commands define hopping sequences that overwrite the four hopping sequences A to D
quoted below. The sequence may consist of up to 64 arbitrary GSM channel numbers; however, a
query returns each hopping sequence in ascending order. Undefined channels are set to
OFF
. The
current hopping sequence can be changed during the connection, see command
PROCedure:SIGNalling[:CSWitched][:TCH][:SSLot]:FHOPping:SEQuence
on p. 6.180 .
≠
CEST,
Q: all
For GSM400, the following four default sequences are available:
Sequence A
: 260, 262, 265, 267, 269, 272, 274, 278, 280, 282, 285, 287, 290, 292, OFF, ... OFF
Sequence B:
159, 276, 293, OFF,...OFF
Sequence C
: 307, 309, 312, 314, 316, 319, 321, 325, 327, 329, 332, 334, 337, 339, OFF, ... OFF
Sequence D:
306, 323, 340, OFF, ... OFF
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