2019-01-07 EDVT measurement II

Frequency Accuracy

Specification
For IEEE 802.11a 17.3.9.4
± 20ppm Maximum
For IEEE 802.11b 18.4.7.4
± 25ppm Maximum (± 60kHz)
For IEEE 802.11g 19.4.7.2
± 25ppm Maximum (± 60kHz)

ESA Basic Setup
-Span 50kHz
-RBW 1kHz
-VBW 1kHz
-Sweep Time 50ms
-Detector RMS Average

EDVT Condition
-Nominal Voltage +/- 10%
3.0V, 3.3V, 3.6V
Low,Room,High Temperature
0C, 25C, 60C

RF Carrier Suppression (IEEE802.11b)

Carrier Suppression
The Measure DC Offset for Single Chip Transceiver
Abs |Center frequency Power – the Closed Peak Power|
Specification
For IEEE 802.11b 18.4.7.7
QPSK Modulation with scrambling disable and repetitive 01 transmit pattern
Minimum 15dB power below from the center frequency to the Closed Peak of Sin(x)/x Spectrum in SA
SA Setting (5MHz Span, RBW 100kHZ, VBW 100kHZ, Sweep Time 500ms)
For Draft IEEE802.11g-01/644r0 19.4.7.7.1
Use Time Gate function at the short training from VSA to measure the power difference from the center frequency to the closed peak
Minimum 15dB power below from the center frequency to the Closed Peak of Sin(x)/x Spectrum in VSA

ESA Basic Setup
-Span 5MHz
-RBW 100kHz
-VBW 100kHz
-Sweep Time 500ms
Detector RMS Average

EDVT Condition
-Nominal Voltage +/- 10%
3.0V, 3.3V, 3.6V
-Low,Room,High Temperature
0C, 25C, 60C

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