B Bandwidth @ Fcc 15.247( A )(2); B Bandwidth @ Fcc 15.247( )(2); Limits; Method Of Measurements - Gemtek WL-211F Manual

FCC PART 15, SUBPART C, SEC. 15.247 - DIRECT SEQUENCE SPREAD SPECTRUM TRANSMITTERS
PCMCIA Wireless LAN Card, Model WL-211F
6.6. 6 DB BANDWIDTH @ FCC 15.247(A)(2)
6.6.1.

Limits

For a direct sequence spread spectrum system, the minimum 6 dB bandwidth shall be at least 500 KHz.
6.6.2.

Method of Measurements

Refer to FCC 15.247(c) & ANSI C63.4:1992
The transmitter output was connected to the spectrum analyzer through an attenuator. the bandwidth of the fundamental
frequency was measured with the spectrum analyzer using 30 KHz RBW, VBW = 100 KHz,. The 6 dB bandwidth was
measured and recorded.
6.6.3.

Test Arrangement

TRANSMITTER
6.6.4.

Test Equipment List

Test Instruments
Spectrum Analyzer/
EMI Receiver
6.6.5.

Test Data

CHANNEL
FREQUENCY
(MHz)
Test Configuration #1: Data Rate at 2 Mbps with DQPSK Modulation
2412
2437
2462
Test Configuration #2: Data Rate at 11 Mbps with CCK Modulation
2412
2437
2462
6.6.6.

Plots

Please refer to attached 6 dB Bandwidth plots for measurements data
ULTRATECH GROUP OF LABS
3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4
Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: vhk.ultratech@sympatico.ca, Website: http://www.ultratech-labs.com
•
Assessed by ITI (UK) Competent Body, NVLAP (USA) Accreditation Body & ACA/AUSTEL (Australia)
•
Accredited by Industry Canada (Canada) under ACC-LAB (Europe/Canada MRA)
•
Recognized/Listed by FCC (USA )
•
All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST)
20 dB
ATTENUATOR
Manufacturer
Hewlett Packard HP 8593EM
6 dB BANDWIDTH
(MHz)
9.79
10.36
10.29
9.86
9.86
11.21
SPECTRUM
ANALYZER
Model No. Serial No.
3412A00103
MINIMUM
LIMIT
(MHz)
0.5
0.5
0.5
0.5
0.5
0.5
Page 17
FCC ID: MXF-WL211F
Frequency Range
9 kHz – 26.5 GHz
PASS/FAIL
PASS
PASS
PASS
PASS
PASS
PASS
File #: GTT-013FTX
March 17, 2000