11 - Digital modulation (Option UO1)
Filtering
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TGR2050 Series Instruction Manual
Filtering
Filtering options are available when FSK, 3FSK, 4FSK, GFSK, GMSK or HMSK are
selected as the modulation type.
NOTE
As filtering depends on the bit rate, it can only be applied when the modulation
source is internal.
The filtering options are on the second page of the modulation menu.
Options include:
Gaussian filters (Bandwidth time constant can be 0.3, 0.5 or 0.7)
Raised cosine filters (Roll-off factors can be 0.5 or 0.7)
Root raised cosine filters (Roll-off factors can be 0.5 or 0.7)
Half sine
The options are dependent on the selected modulation type:
To set the modulation filter, select the
Filter Type
parameter window, select the
required filter and touch
OK
.
FSK
3FSK
4FSK
GFSK
GMSK
HMSK
Gaussian 0.3
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Gaussian 0.5
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Gaussian 0.7
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Raised cosine 0.5
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Raised cosine 0.7
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Root raised cosine 0.5
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Root raised cosine 0.7
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Half sine
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