Programming Information ESG-D Series Option H98 Signal Generators
Wideband CDMA Subsystem SCPI Command Reference
5-16 Manual Supplement
• SFN: System Frame Number Fixed Value, selectable
• UpLink: Base Station Measured Uplink Interference Power Amount, selectable
• W: Message Confirmation Indicator Bits, selectable
• Data: BCCH Data Field, selectable
• CRC: Cyclic Redundancy Check
• Tail: 8 Bits; All Zeros.
Perch2 Operating State
[:SOURce]:RADio:WCDMa[:BBG]:DLINK:PERCh2[:STATe] ON|OFF|1|0
[:SOURce]:RADio:WCDMa[:BBG]:DLINK:PERCh2[:STATe]?
Execute this command to toggle the operating state of the Perch2 logical channel for
synchronization. The Perch2 channel can be enabled alone, with any combination of the
Perch1 channel and channel 1, or it can be turned off. The short code for Perch2 is set
based on the long code masked set (LMS) of the selected long code. Refer to Table 5-2 for
the Perch2 short code. The W-CDMA mode must be activated in order for this signal to be
generated.
Choices:
ON (1) or OFF (0)
Status after *RST: On
Table 5-2 Long Code Range Versus the Perch2 Long-Code Masked Set (LMS)
Phase Polarity
[:SOURce]:RADio:WCDMa[:BBG]:POLarity[:ALL] NORMal|INVert
[:SOURce]:RADio:WCDMa[:BBG]:POLarity[:ALL]?
Execute this command to normalize or invert the internal Q signal, reversing the direction
of phase rotation. Required by some radio standards, phase polarity inversion is also
useful for lower sideband mixing applications. The following polarity types are assigned by
appending the
[:SOURce]:RADio:WCDMa[:BBG]:POLarity[:ALL] command with one of the
following variables:
NORMal Sets the polarity to normal (no inversion of the Q signal).
INVert Sets the polarity to inverted. This inverts Q signal, reversing the direction
of phase rotation.
Status after *RST: Normal
Long Code Range Perch2 Short Code LMS
1 to 32 2
33 to 64 3
65 to 96 4
97 to 128 5
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