G Channel Budget - R&S SMW-K44 User Manual

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G Channel Budget

The term channel describes a hardware unit that is required to process and generate
the signal of the following configuration elements per GNSS stream:
●
●
●
●
Where each GNSS stream requires one baseband and is routed to one RF output. The
number of GNSS streams depends on the installed options, see
Table G-1: Number of streams, SV and channels depending on the installed options
R&S SMW- GNSS
B10 option, e.g.
R&S SMW-
K44
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
Where:
●
●
Table G-2: Maximum number of channels (per R&S SMW-K99)
P-code signals
no
no
yes
User Manual 1178.6379.02 ─ 01
One vehicle
One antenna
One RF band
One signal of one satellite
R&S SMW- R&S SMW-
K99 K120
0 0
1 0
0 0
1 0
0 0
1 0
2 0 | 1
2 0
1)
Total number of SV per scenario; further GNSS options, like R&S SMW-K66, do
not provide additional SV.
The number of SVs is limited according to the selected signals as each SV occu-
pies as many channels as its enabled signals on that stream.
2)
The maximum number of channels depends on the availability and the number of
installed options R&S SMW-K99.
Table G-2 lists the capability of one option, depending on whether P-code and L2C
signals are generated.
L2C signals
no
yes
yes
R&S SMW- R&S SMW-
K76 B103
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 1
Maximum number of channels
36
24
max 12 P signals + max 12 L2C or C/A signals
Channel Budget
Table G-1.
R&S SMW- Streams
SV
B203
0 1 24
0 1 24
1 1 24
1 1 24
1 2 2x24 2x24
1 2 2x24 24 | 48
1 2 2x24 2x36
1 2 2x24 2x36
Max chan-
1)
nels
24
36 2)
24
2)
36
3)
2)
2)
416