Demodulation:CFO:Results:Maximum First Carrier Drift Rate (Hz) Property

Short Name: LE CFO Maximum First Carrier Drift Rate (Hz)

Property of niBTAnalysis

Returns the maximum first carrier drift rate and it is denoted by|f₁ -f₀ |_max. This value is expressed in Hz. The toolkit calculates the value of this property as the difference in deviation between the preamble and the first x-bit payload block.

The toolkit integrates the frequency of the FM demodulated signal starting from the center of the first preamble bit to the center of the first bit following the last preamble bit. This value is recorded as f₀ .

The toolkit then integrates the frequency deviation of the x-bit block in the payload starting from the 2^nd payload symbol. The integral sum is recorded as f₁ .

For LE-Enhanced packets, x = 20.

For other LE packets, x = 10.

This measurement does not exist for LE-LR-125k packets.

Remarks

The following table lists the characteristics of this property.

Datatype
Permissions	Read Only
High-level VIs	niBT SA LE CFO Get Maximum First Carrier Drift Rate
Resettable	No