Tektronix RSA6100A Series, Help Manual

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GP Digital Modulation > User Filters User Filter File Format
User fi lter fi le structure
A fi lter fi le is a plain text fi le, in comma-separated-variable format. The fi le extension must be CSV.
The fi lter fi le contains the following variables:
Rate.
Speci fi es the oversampling rate (the number of samples per symbol). The fi lter coef fi cient data will
be interpolated by the speci fi ed rate.
FilterI,FilterQ. Speci fi es IQ pairs (1 to 1024) of the fi lter coef fi cient in time domain.
Rules for Creating a Filter File
A line beginning with “#” is a comment line.
Enter a positive value for the oversampling rate.
A decimal number can be expressed by fi xed point or fl oating point. For example, 0.01 and 1.0E-2 are
both valid.
“0” (zero) and “,0” (comma zero) can be omitted. For example, “1.5,0”, “1.5,”, and “1.5” are
equivalent.
Lines with only a comma and blank lines are skipped.
Example fi lters. For your reference, two example fi lters, Raised Cosine and Gaussian, are shown here.
Both fi lters contain 65 data points with an oversampling rate of 8.
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RSA6100A Series Real-Time Spectrum Analyzers Help