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Investigation of Wireless LAN Emissions from Breezenet AP-10 and Nokia A032 Devices

This report presents a detailed investigation into the conducted and radiated emissions of two wireless LAN devices: Breezenet AP-10 and Nokia A032. Utilizing advanced testing methodologies such as swept and stepped receiver measurements, the evaluation systematically explores the emissions across various parameters including frequency hopping and antenna configurations. Results derived from testing, which includes multiple sweep times and bandwidth settings, provide insights into the emissions behaviors of the devices under different operational conditions.

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Investigation of Wireless LAN Emissions from Breezenet AP-10 and Nokia A032 Devices

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  1. Wireless LANEmissions Investigation • 2 Devices Provided For Evaluation • Breezenet AP-10 • Twin Antenna Frequency Hopper • Nokia A032 • Single Antenna SinX/X

  2. 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

  3. 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

  4. 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)

  5. 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

  6. 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)

  7. 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)

  8. 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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