Agilent Technologies N9010A - Manual (Page 201)

Chapter 21 201
Bluetooth Measurement Application
Enhanced Data Rate (EDR) Measurements
Description Specifications Supplemental Information
EDR Modulation Accuracy This measurement is a Transmit
Analysis measurement and is in
conformance with Bluetooth RF
test specification 2.1.E.0.5.1.13
Packet Type 2-DH1, 2-DH3, 2-DH5, 3-DH1,
3-DH3, 3-DH5
Payload PRBS9, BS00, BSFF, BS55
Synchronization DPSK synchronization sequence
Trigger External, RF Burst, Periodic
Timer, Free Run, Video
Supported measurements rms DEVM
peak DEVM, 99% DEVM
RF input level range
a
+30 dBm to –70 dBm
RMS DEVM
Range 0 to 12%
Floor 1.5%
Accuracy
b
1.2%
a. When the input signal level is lower than –40 dBm, the analyzer’s preamp should be turned on and the
attenuator set to 0 dB.
b. The accuracy specification applies when the EVM to be measured is well above the measurement
floor. When the EVM does not greatly exceed the floor, the errors due to the floor add to the accuracy
errors. The errors due to the floor are noise-like and add incoherently with the UUT EVM. The errors
depend on the EVM of the UUT and the floor as follows:
error = sqrt(EVMUUT
2
+ EVMsa
2
) – EVMUUT, where EVMUUT is the EVM of the UUT in percent,
and EVMsa is the EVM floor of the analyzer in percent