Demodulation:DF1:Results:Minimum df1avg (Hz) Property

Short Name: Minimum df1avg (Hz)

Property of niBTAnalysis

Returns the minimum df1avg measurement of the acquired signal. This value is expressed in Hz.

The Bluetooth test specification document specifies 11110000 as the 8-bit sequence pattern to use as a payload for this measurement. For LE-LR-125k packets, the payload pattern should be 11111111, which results in a coded bit sequence of 11110000.

The toolkit measures the average frequency deviation, df1max, within the bit period for each second, third, sixth, and seventh of these 8-bit sequences. The average of all the df1max values obtained for a packet is recorded as df1avg. The toolkit finds the minimum of all the df1avg values obtained over different acquisitions and is given as Minimum df1avg. The number of acquisitions is specified by the DF1 Number of Averages property.

Refer to section 5.1.9 of the Bluetooth Test Specification Radio Frequency Test Suite Structure (TSS) and Test Purposes (TP) Specification 1.2/2.0/2.0+EDR/2.1/2.1+EDR/3.0/3.0+HS for more information about BR packets, and sections 4.6.3, 4.6.6, 4.6.7, 4.6.8, and 4.6.10 of Bluetooth Test Specification 5.0.0 for more information about LE packets.

Remarks

The following table lists the characteristics of this property.

Datatype
Permissions	Read Only
High-level VIs	N/A
Resettable	No