Spectracom GSG-5 series, User Manual With Scpi Manual

Page: 304 / 378

Long RLM
SOURce:SCENario:RLM 1,satid,int1,int2,int3,int4,int5,int6,int7,int8
Satiid = Galileo satellite in view in running scneario
Int1,int2,int3: Beacon ID – 3 x 20 bits convertd to decimal
15 HEX ID -> 60 binary bits (3 x 20) –> each 20 bit binary converted to decimal
Int 4-8: 4bit message ID, 96 bit parameter data
SOUR:SCEN:RLM 1,8,711888,141509,1025,983040,1048575,1048575,10-
48575,1048575
Decimal 983040 = Binary 11110000000000000000
4 bit message ID = 1111
6.3.3.84 SOURce:SCENario:DUPlicate
Function
This command creates a duplicate of the satellite with the given satID using the provided mul
tipath parameters. The parameters include the Range Offset, Range Change, Range Interval,
Doppler Offset, Doppler Change, Doppler Interval, Power Offset, Power Change and Power
Interval.
The final optional satID can be used to specify which existing satellite is to be replaced by the
newly created duplicate. If this satID is not provided, and there are no free channels, the com
mand will fail, and produce an error.
Note
Multipath satellites require 60 seconds to be created and are introduced at modulo 30 second
intervals. The GSG can only introduce 4 duplicate satellites at a time and at a maximum rate of
one satellite every two seconds. Multipath, SBAS and interference/jamming channels cannot be
the duplicated. This command is only available when the scenario is running. Note that excess
ive changes to Range or Doppler may result in Doppler shifts greater than the system can
handle and cause the satellites to shutdown due to exceeding the hardware capabilities.
Command Syntax
SOURce:SCENario:DUPlicate <TIME>,<satID>,<decimal>,<decimal>,
<decimal>,<decimal>,<decimal>,<integer>,<decimal>,<decimal>,
288
CHAPTER
6
•
User Manual GSG-5/6 Series Rev. 26
6.3 Command Reference