About Bluetooth Modulation Analysis

The Bluetooth extension (89601BLTC) for the 89600 VSA software demodulates and analyzes Bluetooth transmitter signals. The option adds two measurement types:

Bluetooth Demod (this measurement) detects every Bluetooth burst in the searched time record and demodulates the one you select, reporting the transmitter metrics defined by the Bluetooth Core Specification and the RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz).-PHY Physical Layer Test Specification: output power, modulation characteristics (Δf1 and Δf2 frequency deviations), initial carrier frequency tolerance (ICFT), and carrier frequency drift.
Bluetooth Spectrum performs spectrum-domain transmitter tests, such as LE in-band emissions, across the Bluetooth channel grid.

The two measurements share a common Bluetooth Mode configuration (PHY family, PHY rate, packet type, and channel index) that appears above the tabs in each measurement's properties dialog box.

Bluetooth Demod covers the following transmitter test purposes for the LE PHYs (LE 1M, LE 2M, and LE Coded):

Test	Standard reference
Output power	Core Spec Vol 6, Part A, §3.1.2
Modulation characteristics (Δf1, Δf2)	Core Spec Vol 6, Part A, §3.1.1; RF-PHY Test Spec §4.6.3
Carrier frequency offset and drift (ICFT, drift, drift rate)	Core Spec Vol 6, Part A, §3.1.2; RF-PHY Test Spec §4.6.4

Results are reported per burst in the Results Table, with pass/fail limits resolved automatically for the active PHY and packet type and reported in the Limits Table.

The Bluetooth Demod measurement is introduced in this release as a beta feature and supports Bluetooth low energy (LE) signals only.