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Wireless LANEmissions Investigation
• 2 Devices Provided For Evaluation– Breezenet AP-10
• Twin Antenna Frequency Hopper
– Nokia A032 • Single Antenna SinX/X
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Test Methodologies Used• Conducted Emissions (Breezenet One Antenna)
– Swept Receiver• 12 Samples (Sweeps)
– Stepped Receiver • 1MHz Steps
• Radiated Emissions– Mode Tuned (MT)
• 12 Samples Swept Receiver
– Mode Stirred (MS)• Continuous Tuner Rotation (Rate Matched Sweep Time)
– Fast Mode Stirred (FMS)• 2 Sec. Tuner Rotation Varying Sweep Times
– Frequency Stepped (FS)• 7.5 Sec. Tuner Rotation Rate• Stepped Receiver 1 MHz Increments
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Receiver Settings
• Receiver HP8564E Spectrum Analyzer– Freq. Span 2365 MHz to 2515 MHz (601pts)– Sweep Times 7.5, 15, 30, 60 & 120 Sec.– RBW 1 MHz & 10 kHz– VBW 3 MHz– Max Hold Used
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Breezenet AP-10
• Conducted Emissions– Single Antenna Port via K Connector
• Receiver Swept Measurements– 5 Receiver Sweep Times (7.5, 15, 30, 60, 120 Sec.)– 2 RBW Settings For Each (1MHz and 10KHz) – 12 Sweeps Each Setting Max Hold On
• Receiver Stepped Measurements– 1 MHz Frequency Steps– 1 MHz RBW, 3 MHz VBW– Receiver Sweep Time of 50mS – Max Hold for 60 Seconds (1200 Sweeps)
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Breezenet AP-101MHz RBW CE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-1010kHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-1010kHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-1010kHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-1010kHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet AP-101MHz RBW CE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-101MHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2350 2400 2450 2500 2550Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-101MHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-101MHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-101MHz RBW CE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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AP-10 Conducted Emissions1MHz RBW 1MHz Freq. Steps
-70-60-50-40-30-20-10
01020
2350 2400 2450 2500 2550Frequency (MHz)
dB
m
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Breezenet CE (1 Terminal)
-9.0
0.5
9.510.5
9.5
19.2 18.7 18.6 18.7 18.5 18.9
-10
-5
0
5
10
15
20
7.5 Sec. 15 Sec. 30 Sec. 60 Sec. 120 Sec. SteppedReceiver Settings
Am
plit
ud
e (d
Bm
)10kHz RBW1MHz RBW
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Breezenet AP-10Radiated Emissions
• MODE TUNED– Receiver Swept Measurements
• 5 Receiver Sweep Times (7.5, 15, 30, 60, 120 Sec.)
• 2 RBW Settings For Each (1MHz and 10KHz)
• 12 Sweeps Each Setting Max Hold On
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Breezenet AP-1010kHz RBW RE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60-50
-40
-30
-20
-10
010
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet AP-101MHz RBW RE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-101MHz RBW RE
-80-70-60-50-40-30-20-100102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60-50
-40
-30
-20
-10
010
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet REMode Tuned
-2.0
3.5
6.37.1
14.7
21.720.5
21.722.9
21.2
-5
0
5
10
15
20
25
7.5 Sec. 15 Sec. 30 Sec. 60 Sec. 120 Sec.Receiver Settings
Am
plit
ud
e (
dB
m)
10kHz RBW1MHz RBW
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Breezenet AP-10Radiated Emissions
• MATCHED (SYNCED) MODE STIRRED– Receiver Swept Measurements
• 5 Receiver Sweep Times (7.5, 15, 30, 60, 120 Sec.)
• 2 RBW Settings For Each (1MHz and 10KHz)
• Tuner Rotation Matched Sweep Time (12 Samples)
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Breezenet AP-1010kHz RBW RE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60-50
-40
-30
-20
-10
010
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-1010kHz RBW RE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet AP-101MHz RBW RE
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60-50
-40
-30
-20
-10
010
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
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Breezenet AP-101MHz RBW RE
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet REMatched (Synced) Mode Stirred
0.0 -0.6
2.03.5
10.6
20.218.8
21.520.0
21.2
-5
0
5
10
15
20
25
7.5 Sec. 15 Sec. 30 Sec. 60 Sec. 120 Sec.Receiver Settings
Am
plit
ud
e (
dB
m)
10kHz RBW1MHz RBW
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Breezenet AP-10Radiated Emissions
• FAST MODE STIRRED– Receiver Swept Measurements
• 5 Receiver Sweep Times (7.5, 15, 30, 60, 120 Sec.)
• 1MHz RBW
• Tuner Rotation 2 Seconds
• Receiver Sweep Time of 50mS
• Max Hold for 60 Seconds (1200 Sweeps)
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Breezenet AP-101MHz RBW FMS
-80-70-60-50-40-30-20-10
0102030
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
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Breezenet AP-101MHz RBW FMS
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
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Breezenet AP-101MHz RBW FMS
-80
-70
-60-50
-40
-30
-20
-10
010
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
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Breezenet AP-101MHz RBW FMS
-80
-70
-60
-50
-40
-30-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
![Page 48: Wireless LAN Emissions Investigation 2 Devices Provided For Evaluation –Breezenet AP-10 Twin Antenna Frequency Hopper –Nokia A032 Single Antenna SinX/X](https://reader030.vdocuments.us/reader030/viewer/2022032723/56649d1f5503460f949f3d5e/html5/thumbnails/48.jpg)
Breezenet AP-101MHz RBW FMS
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
2340 2360 2380 2400 2420 2440 2460 2480 2500 2520 2540
Frequency (MHz)
dB
m7.5 Seconds
15 Seconds
30 Seconds
60 Seconds
120 Seconds
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Breezenet AP-10Radiated Emissions
• FREQUENCY STEPPED• Receiver Stepped Measurements
– 1 MHz Frequency Steps
– 1 MHz RBW, 3 MHz VBW
– Receiver Sweep Time of 50mS
– Max Hold for 60 Seconds (1200 Sweeps)
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AP-10 Radiated Emissions1MHz RBW Freq. Stepped
-70-60-50-40-30-20-10
0102030
2350 2400 2450 2500 2550
Frequency (MHz)
dB
m
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Methodology Comparison
0
5
10
15
20
25
Teqnique
Am
plit
ud
e (d
Bm
)7.5 Sec.15 Sec.30 Sec.60 Sec.120 Sec.Freq Stepped