VNA Commands Trace Subsystem
MS20xxC PM PN: 10580-00306 Rev. E 3-155
Trace Header Transfer (continued)
Table 3-12. Trace Header Parameters (Sheet 1 of 9)
Parameter Name Description
SN Instrument serial #
UNIT_NAME Instrument name
TYPE The data type (Setup or Data)
DATE Trace date/time
APP_NAME Application name
APP_VER Application firmware (FW) version
SUB_MODE Sub Mode type, where:
0 is for Vector Network Analyzer,
1 is for Power Monitor, and
2 is for Vector Voltmeter
S_TYPE Active trace S type. Current available S Types
are:
S11 = 0, S21 = 1, S12 = 2, S22 = 3, SD1D1 = 4,
SC1C1 = 5, SC1D1 = 6, SD1C1 = 7
TRACE_S_TYPES S types for all 4 traces. This uses a bit mask,
where the bit shift mask is defined as:
S_TYPE_BIT_SHIFT 4
S_TYPE_BIT_MASK 0xF
For example, to get the S type for trace 1:
(int) (sTypes >> (S_TYPE_BIT_SHIFT * 0)) &
S_TYPE_BIT_MASK
GRAPH_TYPE Active Trace graph type. Current available graph
types are:
Log Mag = 0,
SWR = 1,
Phase = 2,
Real = 3,
Imaginary = 4,
Group delay = 5,
Smith Chart = 6,
Log Mag/2 = 7
Linear Polar = 8
Log Polar = 9
Real Impedance = 10
Imaginary Impedance = 11
Inverted Smith Chart = 12,
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