Test report

FCC ID: A94YZM

Test Report

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FCCID_534935

FCC ID: A94YZM FCC test report Applicant: Bose Corporation. The Mountain Framingham MA 01701 Product: Homewide Wireless Audio Link Test Laboratory: Bose DCE EMC Laboratories 1 New York Avenue Framingham, MA 01701 Report #: EMC.YZM.05.53.1 Page 1 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Table of Contents 1. Certification. ........................................................................................................................ 3 2. Test result summary............................................................................................................. 4 3. General Information............................................................................................................. 6 4. Test results ........................................................................................................................... 6 4.1. Conducted Emissions ..................................................................................................... 6 4.2. Radiated Emissions, Incidental radiator........................................................................ 8 Pre-scan data: ........................................................................................................................ 9 4.3. Transmitter Output power ........................................................................................... 10 4.4. Transmitter Bandwidth................................................................................................ 11 4.5. Restricted bands .......................................................................................................... 13 4.6. Band-edge measurement .............................................................................................. 16 4.7. Transmitter Spectral Density....................................................................................... 18 4.8. Hybrid systems ............................................................................................................ 21 4.9. Spurious emissions...................................................................................................... 24 4.10. Frequency hopping.................................................................................................... 27 4.11. Transmitter Frequency stability ................................................................................ 28 4.12. RF exposure............................................................................................................... 29 5. Test Equipment .................................................................................................................. 30 Appendix A: Test setup photographs ............................................................................ 31 Report #: EMC.YZM.05.53.1 Page 2 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

9 FCC ID: A4YZM & 1. Certification. Product Type: Wireless Audio Link Product Name/part number: Wireless Audio link , AL81, AR1 Applicant: Bose Corporation 100 The Mountain Road Framingham, MA 01701 Applied standard(s) 47 CFR 15.247 Test Laboratory: Bose Corporation 1 New York Avenue Framingham, MA 01701 Site registration FCC: A2LA accredited site, A2LA cert # 1514 IC: 3232A Report issue date: 4/7/05 Print Name Date C s [8 € & Product tested by: Peter Boers J (GaA2ZR—f 4a|‘1/15 Report reviewed by: Jon Kanter 7/7/05/ Report #: EMC.YZM.05.53.1 Page 3 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766—6000 Fax: (508) 766—1145 Without written permission oflaboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 2. Test result summary Applied standard: 47CFR15 subpart B and C Paragraph Requirement Result Comment The device shall have a label Complies See Label exhibit containing the 2 part FCC statement defined in 15.19(3) Information to the use shall Complies See OG caution the user that changes or modifications could void the user’s authority to operate the device Frequency range of measurement Complies Measurements of the shall cover the 10th harmonic or transmitter section are made 40GHz whichever is lower up to 25GHz. Measurements below 1GHz are Complies See section 4 made with CISPR QP and Average Detectors as appropriate. Above 1GHz a 1MHz RBW and an average detector is used. A peak detector limit 20dB above the average limit is implied. Conducted emissions on the AC Complies Margin of >20 dB to the mains shall not exceed the limits limit. See section 4.1 for as defined in 47CFR15.107 detail Radiated emissions from the Complies Margin of 19 dB to the limit. incidental radiator part of the See section 4.2 for detail device shall not exceed the limits as defined in 15.109(a) Digitally modulated systems with Complies Occupied Bandwidth of a 6dB bandwidth of at least 1.55 MHz minimum. See 500kHz section 4.4 for detail 15.247 (b) 3 For digitally modulated systems, Complies Conducted output power is a maximum peak conducted 24.8 dBm (302 mW) output power of 1W maximum. See section 4.3 for detail. 15.247 (b) 4 The conducted output power is Complies Antenna gain determined by based on antenna’s with a gain of comparing conducted power not more than 6dBi and radiated field is < 6dB Report #: EMC.YZM.05.53.1 Page 4 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM If a higher gain antenna is used, Not the allowable output power is Applicable reduced by the amount the antenna gain exceeds 6dBi 15.247 (d) In any 100kHz bandwidth outside Complies See section 4.8 and 4.9 the operating band, the output power shall be 20dB below the in-band spectral density 15.247 (d) In addition, emissions falling Complies See section 4.5 for detail within restricted bands as defined in 15.201(a) must comply with limits 15.209(a) 15.247(e) For digitally modulated systems, Complies See section 4.6 for detail the spectral density shall not exceed 8dBm in any 3 kHz bandwidth The same method of determining Complies Output power and spectral conducted output power shall be density measured with an used for spectral power density. average detector. 15.247(f) Hybrid systems with the digital Complies See section 4.10 modulation turned off shall have an average time occupancy on any frequency not exceeding 0.4 seconds With the frequency hopping part Complies See section 4.7 for detail turned off, a hybrid system shall meet the requirements of 15.247(d) 15.247(i) Systems operating under this part Complies See section 4.12 shall not expose the public to radio frequency levels in excess of the FCC’s guidelines Frequency stability shall be such Complies See section 4.11 that the fundamental modulation products do not fall in any restricted bands Report #: EMC.YZM.05.53.1 Page 5 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 3. General Information The product is a wireless audio link, capable of transmitting 2 channels of stereo-audio controlled by the Boselink ® protocol. A master unit can transmit to up to 5 slave units. The unit operates as a hybrid transmitter under FCC part 15.247, using frequency hopping and digital modulation. The hop channels are dynamically selected depending on channel quality as reported back by the slave unit(s). The number of channels used can range from a minimum of 24 to a maximum of 75. The channels overlap and are spaced at 864 kHz intervals in the 2400 – 2480 MHz band. The top 3.5 MHz is not used in order to meet the emission limits in the restricted band from 2483.5 to 2500 MHz. The master-slave pair operates in duplex mode on the same frequency. The transmitter sends a frame of data for 500us at a repetition rate of 620us. The slave(s) report back on the quality of the received audio in the remaining 120us. 4. Test results 4.1. Conducted Emissions Requirement: Frequency Limits of conducted interference Av Detector QP detector 0.15 – 0.5 MHz 66 to 56* dBµV 56 to 46* dBµV 0.5 – 5 MHz 56 dBµV 46 dBµV 5 – 30 MHz 60 dBµV 50 dBµV * level changes with the log of the frequency Test Setup: ANSI C63.4 is used as the reference standard for testing of the unintentional radiator part of the device. The device is placed on a 80 high non-conductive table and positioned 40 cm from a vertical ground reference plane. Conducted interference is Report #: EMC.YZM.05.53.1 Page 6 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM measured on the AC mains via a 50µH / 50Ohm LISN and a CISPR-16 compliant receiver. The maximum emission of either the phase or neutral conductor is recorded. Results: No measurable emissions within 20 dB of the limit were found. Measurement covered 150 kHz to 30 MHz, QP and Average detector. Raw data Det QP/CA Trd TN57 Att 10 dB AUTO ResBW 9 kHz INPUT 2 Meas T 100 ms Unit dBÌ V 100 1 MHz 10 MHz 90 SGL 80 1MA 70 2AV 60 50 CIS-B-Co 40 30 20 10 0 150 kHz 30 MHz Title: Freebird Alpha conducted Date: 15.MAR.2005 13:08:11 Report #: EMC.YZM.05.53.1 Page 7 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.2. Radiated Emissions, Incidental radiator Requirement: Radiated emissions from the unintentional part of the device shall not exceed the following fieldstrength at a distance of 3 meters from the product Frequency Detector Limit 30 – 88 MHz QP 40 dBµV/m 88 – 216 MHz QP 43.5 dBµV/m 216 -960 MHz QP 46 dBµV/m 960 -1000 MHz QP 54 dBµV/m Above 1 GHz Average 54 dBµV/m Peak 74 dBµV/m Test Methodology: ANSI C63.4 is used as the reference standard for testing of the unintentional radiator part of the device. The device is placed on a non-conductive, 80 cm high table. The linearly polarized measurement antenna is placed 3 meters from the device. The device is rotated and the antenna height is varied from 1 to 4 meters. Measurements are made with both Horizontal and Vertical polarizations of the antenna. The frequency range investigated is from 30 MHz to 1GHz for devices with a internal clock frequency not exceeding 108 MHz, up to 5 GHz for devices with higher internal clocks. A CISPR16 compliant receiver and Quasi peak detector is used below 1GHz, an Average and Peak detector with a 1 MHz bandwidth is used above 1 GHz. Cable configuration: The Master unit has two Boselink ports and a DC connector for the AC adaptor plug. The two Boselink ports are wired in parallel allowing for a daisy chain connection. Normal use consists of using the Master-Slave pair as a replacement for a single Boselink cable, and the unit(s) were tested in this mode. Report #: EMC.YZM.05.53.1 Page 8 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Results: Freq CISPR QP FCC Level @ 15.109 Frequenc 3m limit Margi y [MHz] dBuV/m dBuV/m n dB Comment 175.405 23.7 43.5 -19.8 237.785 21.5 46 -24.5 All other emission > 20 dB below the limit Pre-scan data: Marker 4 [T1] RBW 120 kHz RF Att 10 dB Ref Lvl 26.68 dBÌ V/m VBW 1 MHz 70 dB* 173.84769539 MHz SWT 170 ms Unit dBÌ V/m 70 4 [T1] 26.68 dBÌ V/m A 173.84769539 MHz 60 1 [T1] 35.82 dBÌ V/m 974.72945892 MHz 50 2 [T1] 29.29 dBÌ V/m 282.70541082 MHz 3 [T1] 27.08 dBÌ V/m 40 CIS22-B 1 IN1 208.83767535 MHz 1MAX 1MA 2 2AV 30 4 3 20 TDS 10 0 -10 -20 -30 Start 30 MHz 97 MHz/ Stop 1 GHz Title: Freebird FCC 15B , CISPR-22/B radiated test Date: 9.FEB.2005 10:01:03 Sample correction factor calculation: Measured value + cable loss + Antenna Factor + distance correction = reported level 30 dBuV + 3.1 dB + 8.7 dB/m + 0 = 41.8 dBuV/m Measurements are made at the limit distance for FCC part 15 (3 meters). Antenna and cable factors are incorporated in internal correction factor tables in the R&S ESIB40. Report #: EMC.YZM.05.53.1 Page 9 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.3. Transmitter Output power Requirement: 15.247(b): The output power for a digitally modulated transmitter shall not exceed 1 Watt. For each dB that the gain of the transmit antenna exceed 6dBi, the output power of the transmitter shall be reduced correspondingly. Test process: The transmitter is operated at nominal voltage and temperature. The frequency hopping function is stopped, and power is measured at the low end, mid and high end of the frequency range. The commands to achieve this are: DMF, TX xx. Where xx is the channel. The Spectrum Analyzer bandwidth is set to larger than the transmitter occupied bandwidth, and the detector mode to average, trace display to max hold. The EUT is rotated along all three axis and the maximum value is recorded. Out of this maximum fieldstrength the EIRP is calculated using the formula 30.P = E2R2 The integral antenna is replaced with a connector, and the output power is measured with a thermal RF probe as well as a Spectrum Analyzer (for further correlation with other measurements). Results: Low Mid High Band Band Band Carrier Frequency [MHz] 2401.92 2439.936 2478.816 1 Field Strength [dBµV/m] 123.39 123.88 123.21 unit rotated over 3 axis, 5 MHz RBW, av det. 2 Calculated EIRP [dBm] 28.16 28.65 27.98 3 Measured power Wmeter [dBm] 24.20 24.14 23.99 4 Measured power, SA, 5MHz RBW [dBm], av det 24.83 24.77 24.70 5 Implied Antenna Gain [dB] ([2] – [4]) 3.43 3.88 3.28 Report #: EMC.YZM.05.53.1 Page 10 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.4. Transmitter Bandwidth Requirement: 15.247(a) digitally modulated systems with a 6dB bandwidth of at least 500 kHz. Test setup: Spectrum analyzer with the RBW about 3% of the expected OBW, span to be about 2 - 3 times the expected OBW. Summary: Frequency Measured BW Requirement Result 2.4011 GHz 2.124 MHz > 500 kHz Pass 2.4405 GHz 1.833 MHz > 500 kHz Pass 2.4786 GHz 1.551 MHz > 500 kHz Pass Test data: Low band, Carrier 2.40113226 GHz, 6dB BW = 2.124Hz Marker 1 [T1] RBW 50 kHz RF Att 60 dB Ref Lvl -0.94 dBm VBW 500 kHz 30 dBm 2.40179489 GHz SWT 5 ms Unit dBm 30 1 [T1] -0.94 dBm A 2.40179489 GHz 20 OPB 2.12424850 MHz T1 [T1] -17.31 dBm 10 2.40083798 GHz T2 [T1] -14.66 dBm 1 2.40296222 GHz 0 IN1 1AVG 1AV -10 T2 T1 -20 -30 -40 -50 -60 -70 Center 2.40179489 GHz 500 kHz/ Span 5 MHz Title: YZM OBW DMF TX00 Date: 14.FEB.2005 14:33:10 Report #: EMC.YZM.05.53.1 Page 11 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Mid Band, carrier 2440.25 MHz, OPBW is 1.833 MHz Marker 1 [T1] RBW 50 kHz RF Att 60 dB Ref Lvl -38.81 dBm VBW 500 kHz 30 dBm 2.44250000 GHz SWT 5 ms Unit dBm 30 1 [T1] -38.81 dBm A 2.44250000 GHz 20 OPB 1.83366733 MHz T1 [T1] -15.84 dBm 10 2.43902305 GHz T2 [T1] -16.56 dBm 2.44085671 GHz 0 IN1 1AVG 1AV -10 T1 T2 -20 -30 1 -40 -50 -60 -70 Center 2.44 GHz 500 kHz/ Span 5 MHz Title: YZM OBW DMF TX40 Date: 14.FEB.2005 14:31:23 High Band, carrier 2478.6 MHz, OPBW is 1.663 MHz Marker 1 [T1] RBW 100 kHz RF Att 60 dB Ref Lvl -36.34 dBm VBW 1 MHz 30 dBm 2.47650000 GHz SWT 5 ms Unit dBm 30 1 [T1] -36.34 dBm A 2.47650000 GHz 20 OPB 1.66332665 MHz T1 [T1] -10.03 dBm 10 2.47799299 GHz T2 [T1] -6.07 dBm 2.47965631 GHz 0 IN1 1AVG T2 1AV T1 -10 -20 -30 1 -40 -50 -60 -70 Center 2.479 GHz 500 kHz/ Span 5 MHz Title: YZM OBW DMF TX79 Date: 14.FEB.2005 14:28:33 Report #: EMC.YZM.05.53.1 Page 12 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.5. Restricted bands Requirement: 15.247(d) In addition, emissions falling within restricted bands as defined in 15.201(a) must comply with limits 15.209(a) For the harmonics of a transmitter operating in the 2400 – 2483.5 MHz band, the following restricted bands are of relevance (measurements are made up to the 10th harmonic, or for a 2.48 GHz transmitter up to 25 GHz).: 2483.5 – 2500 MHz 4.5 - 5.15 GHz 7.25 – 7.75 GHz 10.6 - 12.7GHz 14.47 – 14.5 GHz 22.01 – 23.12 23.6 – 24 GHz Test methodology: The transmitter is programmed to carrier-non hopping, non-modulated (single frequency) and tuned to the low, mid or high band, at the same frequencies as used for the output power measurement. The known harmonics of the transmitter are measured at 1 meter from the product and extrapolated back to the 3 meter limit using a 1/R fall-off (9.5 dB). A 20 dB higher limit for peak measurements (1 MHz BW) is applicable. The resolution bandwidth of the SA may be reduced for average detector measurements in order to obtain the required sensitivity. This is justified because the nature of the transmitted signal is known to be an unmodulated carrier. Test results: Preliminary conducted output power measurements. The 54 dBµV/m @ 3 meter limit for the restricted bands amounts to an EIRP limit of -41.23 dBm. Report #: EMC.YZM.05.53.1 Page 13 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Conducted Frequency Level Frequency Frequency carrier test [MHz] dBm [MHz] [MHz] dBm Carrier 2401.92 24.1 2439.94 24.2 2478.80 24.23 2nd Harmonic 4803.84 -35.6 4879.87 -34.2 4957.60 -33.8 rd 7205.76 -57.5 7319.81 -56.7 7436.40 -56.7 3 Harmonic th 9607.68 -70.3 9759.74 -68.7 9915.20 -65.4 4 Harmonic th 12009.60 -50.3 12199.68 -48.9 12394.01 -48.1 5 Harmonic th 14411.52 -44.1 14639.62 -45.5 14872.81 -48 6 Harmonic th 16813.44 -52.6 17079.55 -67.3 17351.61 -74 7 Harmonic th 19215.36 -69.6 19519.49 -74.5 19830.41 -70 8 Harmonic th 21617.28 -80 21959.42 <-88 22309.21 <-80 9 Harmonic th 24019.20 <-80 24399.36 -80.5 24788.01 -70 10 Harmonic Radiated measurements are made in the anechoic room with an Antenna – EUT distance of 3 or 1 meter. For 1 meter measurements, the measured values are adjusted by a 1/R correction factor (-9.5 dB) to account for the distance scaling. Measurements the unmodulated carrier may be made with a reduced bandwidth in order to increase the signal to noise ratio of the instrumentation. Reported values of the peak detector data (broadband noise) may reflect instrumentation noise floor readings rather than product emissions. Low band Frequency Field Limit Field Limit Margin Strength (average) Strength (peak) (average) (peak) [MHz] dBµV/m dBµV/m dBµV/m dBµV/m [dB] Carrier 2401.92 123.4 2nd Harmonic 4803.84 41.7 54 52.6 74 -12.3 3rd Harmonic+ 7205.76 40.2 * th 4 Harmonic+ 9607.68 37.75 * th 5 Harmonic+ 12009.60 32.7 54 * 74 -21.3 6th Harmonic+ 14411.52 39.6 * 7th Harmonic+ 16813.44 31.7 * th 8 Harmonic+ 19215.36 <35 54 * 74 -19 th 9 Harmonic+ 21617.28 <35 * 10th Harmonic+ 24019.20 <35 * Report #: EMC.YZM.05.53.1 Page 14 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Mid band Frequency Field Limit Field Limit Margin Strength (average) Strength (peak) (average) (peak) [MHz] dBµV/m dBµV/m dBµV/m dBµV/m [dB] Carrier 2439.94 123.9 2nd Harmonic 4879.87 47.4 54 52 74 -6.6 3rd Harmonic+ 7319.81 41.4 54 * 74 -12.6 th 4 Harmonic+ 9759.74 42.3 * 5th Harmonic+ 12199.68 41 54 * 74 -13 th 6 Harmonic+ 14639.62 45.7 * 7th Harmonic+ 17079.55 41.5 * th 8 Harmonic+ 19519.49 <35 54 * 74 -19 9th Harmonic+ 21959.42 <35 * th 10 Harmonic+ 24399.36 <35 * High band Frequency Field Limit Field Limit Margin Strength (average) Strength (peak) (average) (peak) [MHz] dBµV/m dBµV/m dBµV/m dBµV/m [dB] Carrier 2478.82 123.2 2nd Harmonic 4957.63 45.2 54 52 74 -8.8 3rd Harmonic + 7436.45 39.8 54 * 74 -14.2 4th Harmonic + 9915.26 40.8 * th 5 Harmonic + 12394.08 40 54 * 74 -14 6th Harmonic + 14872.90 46 * th 7 Harmonic + 17351.71 42.1 * 8th Harmonic + 19830.53 <35 * th 9 Harmonic + 22309.34 <35 54 * 74 -19 10th Harmonic+ 24788.16 <35 * * No meaningful data measured, instrumentation noise floor >10 dB below limit +Measurement over 7 GHz were made with a reduced RBW ranging from 100kHz to 10 kHz. The instrumentation noise floor is below the spec limit of 54 dBuV/m with a 1 MHz RBW and an average detector. Report #: EMC.YZM.05.53.1 Page 15 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.6. Band-edge measurement Since the 2483.5 – 2500 MHz restricted band is adjacent to the highest used band by the transmitter, measurement are made with a reduced bandwidth (100kHz) to show that compliance with the 54dBµV/m @ 3 meters limit in the restricted band. At this bandwidth the implied peak limit of 20dB above the average detector limit for broadband noise and the average limit for narrowband noise result in the same numerical value of 54 dBµV/m . The transmitter is operated in the normal operational mode, random data sequence, with the hopping stopped in the highest channel (command HO 79.0) Reference data: in-band measurement, 100 kHz RBW with peak and average trace detectors with the trace display in max-hold mode. Note that the restricted band values reflect the noise floor of the instrumentation. Marker 1 [T1] RBW 100 kHz RF Att 40 dB Ref Lvl 76.59 dBÌ V/m VBW 100 kHz Mixer -20 dBm 120 dB* 2.48351904 GHz SWT 5 ms Unit dBÌ V/m 120 -9.5 dB Offset 1 [T1] 76.59 dBÌ V/m B 2.48351904 GHz LN 110 2 [T2] 70.57 dBÌ V/m 2.48353908 GHz 100 90 IN1 1MAX 1MA 2MAX 2AV 80 1 2 70 P0 TDS 60 50 40 30 F1 20 Center 2.479 GHz 1 MHz/ Span 10 MHz Title: Freebird time sequence Date: 7.FEB.2005 13:52:21 Report #: EMC.YZM.05.53.1 Page 16 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Band-edge measurement, made at a 1 meter distance from the EUT, accounted for with a 9.5 dB offset for distance scaling to the limit. Average detector data shows a maximum value of 45 dBµV/m in the restricted band. The peak detector shows a maximum value of 53.3 with a 100kHz bandwidth, or 73.3 dBµV/m/MHz in the adjacent restricted band. Marker 1 [T1] RBW 100 kHz RF Att 10 dB Ref Lvl 53.30 dBÌ V/m VBW 100 kHz Mixer -20 dBm 90 dB* 2.48351904 GHz SWT 5 ms Unit dBÌ V/m 90 -9.5 dB Offset 1 [T1] 53.30 dBÌ V/m B 2.48351904 GHz 80 2 [T2] 45.00 dBÌ V/m 2.48353908 GHz 70 60 IN1 1MAX 1 1MA 2MAX 2AV 50 2 40 P0 TDS 30 20 10 0 F1 -10 Center 2.479 GHz 1 MHz/ Span 10 MHz Title: Freebird time sequence Date: 7.FEB.2005 13:51:35 Report #: EMC.YZM.05.53.1 Page 17 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.7. Transmitter Spectral Density Requirement 15.247(e) For digitally modulated systems, the spectral density shall not exceed 8dBm in any 3 kHz bandwidth. The same method of determining conducted output power shall be used for spectral power density. Test Setup: Connectorized transmitter units are used for this test. A direct connection (with attenuators) is used for the spectral, density measurements. The transmitter hopping is stopped, and spectral density measurements are made in the same mode as the output power measurements. . Transmitter commands: DMF, TX xx where xx denoted the channel. The spectrum analyzer is set up for a span covering the whole occupied bandwidth of the transmitter, a RBW of 3 kHz, and automatic sweep time. The maximum spectral density area in the frequency display is selected , and the span is reduced to 120kHz and the sweep time is set to 40 seconds. Results: The peak value for the spectral density is 5.03 dBm/3kHz. Band PSD measured Limit Margin Low 1.97 8 dBm 6.03 dB Mid 2.88 8 dBm 5.12 dB High 5.03 8 dBm 2.97 dB Report #: EMC.YZM.05.53.1 Page 18 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM PSD detail test data as follows. Low band full range display Marker 1 [T2] RBW 3 kHz RF Att 50 dB Ref Lvl 2.18 dBm VBW 30 kHz 30 dBm 2.40120000 GHz SWT 680 ms Unit dBm 30 10 dB Offset 1 [T2] 2.18 dBm B 2.40120000 GHz 20 10 1 0 IN1 2MAX 2AV -10 -20 TDF -30 -40 -50 -60 -70 Center 2.401947896 GHz 240 kHz/ Span 2.4 MHz Title: YZM PSD DMF TX40 pk Date: 14.FEB.2005 13:03:51 : Low band detail display, 40 second sweep Marker 1 [T2] RBW 3 kHz RF Att 50 dB Ref Lvl 1.97 dBm VBW 30 kHz 30 dBm 2.40193238 GHz SWT 40 s Unit dBm 30 * 10 dB Offset 1 [T2] 1.97 dBm B 2.40193238 GHz 20 10 1 0 IN1 2AV -10 -20 TDF -30 -40 -50 -60 -70 Center 2.401947896 GHz 12 kHz/ Span 120 kHz Title: YZM PSD DMF TX40 pk Date: 14.FEB.2005 13:05:10 Report #: EMC.YZM.05.53.1 Page 19 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Mid band: Marker 1 [T2] RBW 3 kHz RF Att 50 dB Ref Lvl 2.88 dBm VBW 30 kHz 30 dBm 2.43993439 GHz SWT 40 s Unit dBm 30 10 dB Offset 1 [T2] 2.88 dBm B 2.43993439 GHz 20 10 1 0 IN1 2AV -10 -20 TDF -30 -40 -50 -60 -70 Center 2.439961924 GHz 12 kHz/ Span 120 kHz Title: YZM PSD DMF TX40 pk Date: 14.FEB.2005 12:58:33 High Band: Marker 1 [T2] RBW 3 kHz RF Att 50 dB Ref Lvl 5.03 dBm VBW 30 kHz 30 dBm 2.47871861 GHz SWT 40 s Unit dBm 30 10 dB Offset 1 [T2] 5.03 dBm B 2.47871861 GHz 20 10 1 0 IN1 2AV -10 -20 TDF -30 -40 -50 -60 -70 Center 2.478723783 GHz 12 kHz/ Span 120 kHz Title: RYZM PSD DMF TX79 pk Date: 14.FEB.2005 12:53:26 Report #: EMC.YZM.05.53.1 Page 20 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.8. Hybrid systems Requirement: With the frequency hopping part turned off, a hybrid system shall meet the requirements of 15.247(d): In any 100 kHz bandwidth outside the frequency band of operation, the output power shall be at least 20dB below the maximum in-band power measured with the same bandwidth. Results: Spectrum scan, conducted. F2 is the lower edge, F1 is the higher edge of the authorized band (2400 - 2483.5 MHz). Hopping is stopped. Measurements made with average and peak detectors, max hold, modulation with a random signal. Upper band RBW 100 kHz RF Att 30 dB Ref Lvl VBW 1 MHz Mixer -20 dBm 25 dBm SWT 30 ms Unit dBm 25 10 dB Offset 20 B 10 0 IN1 1MAX 1MA -10 2MAX 2AV -20 P0 -30 TDF -40 -50 -60 F2 -70 F1 -75 Center 2.44 GHz 12 MHz/ Span 120 MHz Title: Freebird conducted spectral output, HO79 Date: 7.FEB.2005 15:27:10 Report #: EMC.YZM.05.53.1 Page 21 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Mid band: RBW 100 kHz RF Att 30 dB Ref Lvl VBW 1 MHz Mixer -20 dBm 25 dBm SWT 30 ms Unit dBm 25 10 dB Offset 20 B 10 0 IN1 1MAX 1MA -10 2MAX 2AV -20 P0 -30 TDF -40 -50 -60 F2 -70 F1 -75 Center 2.44 GHz 12 MHz/ Span 120 MHz Title: Freebird conducted spectral output, HO79 Date: 7.FEB.2005 15:26:26 Lower band: RBW 100 kHz RF Att 30 dB Ref Lvl VBW 1 MHz Mixer -20 dBm 25 dBm SWT 30 ms Unit dBm 25 10 dB Offset 20 B 10 0 IN1 1MAX 1MA -10 2MAX 2AV -20 P0 -30 TDF -40 -50 -60 F2 -70 F1 -75 Center 2.44 GHz 12 MHz/ Span 120 MHz Title: Freebird conducted spectral output, HO79 Date: 7.FEB.2005 15:28:07 Report #: EMC.YZM.05.53.1 Page 22 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Low band detail, F2 is the upper edge of the 2360 – 2390 MHz restricted band. Report #: EMC.YZM.05.53.1 Page 23 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.9. Spurious emissions Initial conducted measurements were made on a connectorized unit in the range of 30MHz to 25 GHz for the transmitter set to “no hopping”,” full modulation” for the low band, mid band and high band setting. Test data show the obtained spectrum; note that the level of the carrier is inaccurate due to over ranging of the instrumentation. Conducted spectrum plot with the transmitter in normal operation (hopping mode). 0 YZM DMC Standard power up operation conducted spurious -10 -20 -30 -40 -50 -60 -70 -80 Level (dB m) -90 -100 30M 100M 1G 10G 25G Frequency (Hz) Report #: EMC.YZM.05.53.1 Page 24 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Detail spectrum plot in average and peak detector mode for the 2nd harmonic range Delta 1 [T1] RBW 1 MHz RF Att 40 dB Marker 1 [T1] RBW 1 MHz RF Att 40 dB Ref Lvl 0.11 dB VBW 10 MHz Mixer -40 dBm Ref Lvl -36.62 dBm VBW 1 MHz Mixer -40 dBm -20 dBm -7.01402806 MHz SWT 5 ms Unit dBm -20 dBm 4.89248497 GHz SWT 5 ms Unit dBm -20 -20 A A LD LD -30 -30 1 -40 11 -40 -50 IN1 -50 IN1 1MAX 1AV 1MAX 1AP -60 -60 -70 P20 -70 P20 TDF TDF -80 -80 -90 -90 -100 -100 -110 -110 -120 -120 Center 4.9 GHz 50 MHz/ Span 500 MHz Center 4.9 GHz 50 MHz/ Span 500 MHz Date: 21.FEB.2005 14:26:49 Date: 21.FEB.2005 14:27:57 Detail spectrum plot in average and peak detector mode for the 3rd harmonic range Marker 1 [T1] RBW 1 MHz RF Att 20 dB Marker 1 [T1] RBW 1 MHz RF Att 20 dB Ref Lvl -63.53 dBm VBW 10 MHz Mixer -40 dBm Ref Lvl -51.69 dBm VBW 1 MHz Mixer -40 dBm -20 dBm 7.31322645 GHz SWT 5 ms Unit dBm -20 dBm 7.44248497 GHz SWT 5 ms Unit dBm -20 -20 A A LD LD -30 -30 -40 -40 -50 -50 1 IN1 IN1 1MAX 1AV 1MAX 1AP -60 1 -60 -70 P0 -70 P0 TDF TDF -80 -80 -90 -90 -100 -100 -110 -110 -120 -120 Center 7.349799599 GHz 50 MHz/ Span 500 MHz Center 7.349799599 GHz 50 MHz/ Span 500 MHz Date: 21.FEB.2005 14:31:55 Date: 21.FEB.2005 14:32:53 Note that the restricted band limit of 54 dBuV/m at 3 meters equates to an EIRP of -41.3 dBm, and that all harmonics fall below these limits. Report #: EMC.YZM.05.53.1 Page 25 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Radiated measurements were made at 1 meter distance to increase equipment sensitivity with respect to the limit. An scale-offset of 10dB was applied to the spectrum analyzer to account for the distance scaling from 3 meters to 1 meter. Measurements were made with H and V polarization with the transmitter operating over its full hop set. No data above the instrumentation sensitivity could be obtained in the normal operational mode of the transmitter. Only with the hopping stopped could (narrowband) measurements of the carrier be made. Data shown in section 4.5. Report #: EMC.YZM.05.53.1 Page 26 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.10. Frequency hopping Requirement: 15.247(f): Hybrid systems with the digital modulation turned off shall have average time occupancy on any frequency not exceeding 0.4 seconds Transmitter hopping design: The transmitter sends information out in packets, based on symbols with a duration of 673 ns. Three possible packet formations are: 1) Sync packet – 1590 symbols 2) Feedback packet from the slave unit – 1494 symbols over 8 slave units 3) Normal packet – 769 symbols For the first 142 symbols in each packet, the transmitter is “off”, for internal relocking. The transmitter changes hop frequency according to a predetermined schedule every packet. The channel selection algorithm is based on the channel quality as reported back by the slave units. A minimum of 24 channels and a maximum of 75 channels, spaced at 864 kHz will be used. Based on the above, the longest occupancy at any one channel frequency – based on the transmission of a sync packet – is for 1590-142 = 1448 symbols or 0.9745 milliseconds. The minimum number of hopping channels (24) multiplied by 0.4 amounts to 9.6 seconds. Within that timeframe 8972 sync packets could hypothetically be transmitted, of which 1/24th could theoretically be on the same channel frequency – resulting in a total time occupancy on a given channel of 364.3 ms. This meets the requirement for an average time occupancy in each channel of 0.4 seconds. Report #: EMC.YZM.05.53.1 Page 27 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.11. Transmitter Frequency stability Requirement: Technically not required, however need to substantiate that the unit stays in the allocated band over temperature and voltage. Test Setup: The transmitter is setup in a non-hopping, carrier only mode and placed in a temperature chamber. The output is monitored with a spectrum analyzer with sufficient accuracy in the frequency readout to provide meaningful data in terms of frequency accuracy. The transmitter supply voltage (mains) is varied +/- 15% from nominal and the temperature is varied from -20 to +50 degrees Celsius. The transmitter temperature is allowed to stabilize at each test point. Test results Operating voltage: Operating Deviation Voltage Frequency [Hz] [ppm] nominal 2401893657 -15% * +15% * * Less than 100 Hz change Operating temperature Degrees Deviation Celsius Frequency [Hz] [ppm] -30 2401878149 6 -20 2401889500 2 -10 2401895671 -1 0 2401897430 -2 10 2401896615 -1 nominal (20) 2401893657 30 2401892210 1 40 2401890918 1 50 2401891460 1 60 Report #: EMC.YZM.05.53.1 Page 28 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 4.12. RF exposure Requirement: 15.247(i) Systems operating under this part shall not expose the public to radio frequency levels in excess of the FCC’s guidelines. Reference OET65 Result: The maximum measured EIRP from the transmitter is 28.65 dBm or 732 mW in the artificial “always on” mode of the transmitter. Ignoring any transmitter based duty cycle factors, and using the formula EIRP S = -------- from FCC OET Guide 65 results in a calculated power density of 4πR2 1 mW/cm2 at a distance of 7.6 cm from the antenna. The product is a table top device, a “mobile” device as defined in FCC OET65 supplement C, for which a separation distance of 20 cm is normally maintained between the antenna and the body of the user or nearby persons. Conclusion: This device, when operated as intended, does not expose the public to radio frequency levels in excess of the FCC’s guidelines. Report #: EMC.YZM.05.53.1 Page 29 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM 5. Test Equipment Test Instruments: TN # Cal due 600 EMCO 3810/2 LISN 6/9/2005 698 Emco 3142B Biconilog 26MHz-2GHz 11/8/2006 616 Hewlett Packard 87405A Pre-amp 10MHz to 3GHz 4/24/2005 1233 Spectrum Analyzer: Rohde & Schwartz ESIB40 12/27/2005 576 cable for anechoic room 4/24/2005 577 cable for anechoic room 4/24/2005 1294 RF probe: Rohde & Schwartz NRV-Z51 1/3/2006 1293 RF Wattmeter: Rohde & Schwartz NRVS 1/3/2006 1233 Spectrum Analyzer: Rohde & Schwartz ESIB40 12/27/2005 478 EMCO 3115, Ridge Guided Horn 1-18 GHz 5/26/2006 727 AR AT4003 standard gain horn antenna, 4 – 8 GHz 7/11/2005 728 AR AT4004 standard gain horn antenna , 8 – 18 GHz 7/11/2005 1307 ETS 3160-09 standard gain horn antenna , 18- 26.5 GHz 11/10/2005 Cable TN1277-10, 10dB SMA attenuator, Cable TN1277-03, VHP - Report #: EMC.YZM.05.53.1 Page 30 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.

FCC ID: A94YZM Appendix. Appendix a: Test setup photographs Appendix b Product photographs Appendix c: Product Manual Appendix d: Transmitter schematics Report #: EMC.YZM.05.53.1 Page 31 of 31 Bose Corporation, 1 New York Ave, Framingham, MA 01701, USA Tel: (508) 766-6000 Fax: (508) 766-1145 Without written permission of laboratory, this report shall not be reproduced except in full.


Document Created: 2005-04-07 15:30:08
Document Modified: 2005-04-07 15:30:08
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