FCC EM-XSW2 Manual Download

Page: 39 / 46

ETC Report No. : 16-11-RBF-029-01

Sheet 34

of 41 Sheets

FCC ID:

DMOEMXSW2

Radiated Emission Test Results of the Band Edges

Site

:CHAMBER #2

Date

:2016-11-22

Limit

:2.4GHZ PEAK

Ant. Pol.

:HORIZONTAL

EUT

:XS WIRELESS

Model

:EM-XSW2

Power Rating

:120V 60Hz

Temp.

:23°C

Engineer

:Brian Huang

Humi.

:68 %

Test Mode

:CH LO & HI - BANDEDGE

Freq

MHz

Reading

dBuV

Correction

Factor

Result

dBuV/m

Limits

dBuV/m

Over limit

Detector

2400.0000

35.2

-5.8

29.4

54.0

-24.6

Average

2400.0000

53.7

-5.8

47.9

74.0

-26.1

Peak

2483.5000

35.1

-5.7

29.4

54.0

-24.6

Average

2483.5000

60.3

-5.7

54.6

74.0

-19.4

Peak

Note :
1. Result = R Corrected Factor
2. Corrected Factor = Antenna Cable Loss - Amplifier Gain (if any)
3. The margin value=Limit - Result
4. The expanded uncertainty of the radiated emission tests is 3.53 dB.

Summary of Contents for EM-XSW2

Page 1: ... for APPLICANT Sennheiser Electric Corp ADDRESS 1 Enterprise Drive Old Lyme CT 06371 USA Test Performed by ELECTRONICS TESTING CENTER TAIWAN NO 34 LIN 5 DINGFU VIL LINKOU DIST NEW TAIPEI CITY TAIWAN 24442 R O C TEL 02 26023052 FAX 02 26010910 http www etc org tw e mail emc etc org tw Report Number 16 11 RBF 029 01 ...

Page 2: ... 120050 I P AC100 240V 50 60Hz 0 2A O P 12Vdc 0 5A 6W e Frequency Range 2433MHz 2473MHz Regulation Applied FCC Rules and Regulations Part 15 Subpart C I HEREBY CERTIFY THAT The data shown in this report were made in accordance with the procedures given in ANSI C63 10 2013 and the energy emitted by the device was founded to be within the limits applicable I assume full responsibility for accuracy a...

Page 3: ...SW2 III Date Test Item Received Nov 22 2016 Date Test Campaign Completed Nov 25 2016 Date of Issue Dec 06 2016 Test Engineer Brian Huang Engineer Approve Authorized Signer S S Liou Section Manager EMC Dept II of ELECTRONICS TESTING CENTER TAIWAN ...

Page 4: ...EM TEST CONFIGURATION 7 3 1 Justification 7 3 2 Devices for Tested System 7 4 RADIATED EMISSION MEASUREMENT 8 4 1 Applicable Standard 8 4 2 Measurement Procedure 8 4 3 Measuring Instrument 10 4 4 Radiated Emission Data 11 4 4 1 RF Portion 11 4 4 2 Other Emissions 17 4 5 Field Strength Calculation 21 4 6 Photos of Radiation Measuring Setup 22 5 CONDUCTED EMISSION MEASUREMENT 24 5 1 Standard Applica...

Page 5: ...licable 32 7 2 Measurement Procedure 32 7 3 Measurement Equipment 33 7 4 Measurement Data 33 8 DYTY CYCLE 36 8 1 Standard Applicable 36 8 2 Measurement Equipment 36 8 3 Measurement Data 36 9 BANDWIDTH OF EMISSION 38 9 1 Applicable Standard 38 9 2 Measurement Procedure 38 9 3 Measurement Equipment 39 9 4 Measurement Data 39 ...

Page 6: ...1 2 Characteristics of Device The EUT is a Wireless Microphone Receiver with 2 4GHz SYNC function 1 3 Test Methodology Both conducted and radiated emissions were performed according to the procedures illustrated in ANSI C63 10 2013 Other required measurements were illustrated in separate sections of this test report for details Measurement Software Software Version Note e3 Version 6 100618b Radiat...

Page 7: ...digital device which is marketed for use in a residential environment notwithstanding use in a commercial business of industrial environment Example of such devices that are marketed for the general public Note A manufacturer may also qualify a device intended to be marketed in a commercial business or industrial environment as a Class B digital device and in fact is encouraged to do so provided t...

Page 8: ...io frequency voltage between each power line and ground at the power terminal The lower limit applies at the band edges Frequency MHz Quasi Peak dBμV Average dBμV 0 15 0 5 66 56 56 46 0 5 5 0 56 46 5 0 30 0 60 50 2 Radiated Emission Requirement For unintentional device according to 15 109 a except for Class A digital devices the field strength of radiated emissions from unintentional radiators at ...

Page 9: ...z and frequencies below 1000 MHz are based on quasi peak However the peak field strength of any emission shall not exceed the maximum permitted average limits by more than 20 dB 3 Spurious in Out Band Requirement For intentional device according to 15 249 d emissions radiated outside of the specified frequency bands except for harmonics shall be attenuated by at least 50 dB below the level of fund...

Page 10: ... 47 14 5 8 291 8 294 149 9 150 05 2310 2390 15 35 16 2 8 362 8 366 156 52475 156 52525 2483 5 2500 17 7 21 4 8 37625 8 38675 156 7 156 9 2655 2900 22 01 23 12 8 41425 8 41475 162 0125 167 17 3260 3267 23 6 24 0 12 29 12 293 167 72 173 2 3332 3339 31 2 31 8 12 51975 12 52025 240 285 3345 8 3358 36 43 36 5 12 57675 12 57725 322 335 4 3360 4400 Above 38 6 13 36 13 41 Until February 1 1999 this restri...

Page 11: ...uant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harmful interference to radio communication However there is no guarantee that interference will not occu...

Page 12: ...lly use it The peripherals other than EUT were connected in normally standing by situation All measurement were intentional to maximum the emissions from EUT by varying the connection cables if applicable therefore the test result is sure to meet the applicable requirement 3 2 Devices for Tested System Device Manufacturer Model FCC ID Description XS WIRELESS Sennheiser electronic GmbH Co KG EM XSW...

Page 13: ...r measuring distance before final test 3 For emission frequencies measured below and above 1 GHz set the spectrum analyzer on a 100 kHz and 1 MHz resolution bandwidth respectively for each frequency measured in step 2 4 The search antenna is to be raised and lowered over a range from 1 to 4 meters in horizontally polarized orientation Position the highness when the highest value is indicated on sp...

Page 14: ...re 1 Frequencies measured below 1 GHz configuration RF Test Receiver Search Antenna 3m 4m 1m Turn Table EUT 0 8m Antenna Tower Ground Plane Figure 2 Frequencies measured above 1 GHz configuration Spectrum Analyzer HornAntenna 3m 4m 1m Turn Table EUT AntennaTower Amplifier 1 5m ...

Page 15: ... 2017 10 07 Amplifier HP 8449B 2016 07 18 2017 07 17 Amplifier HP 83051A 2015 12 17 2016 12 16 Amplifier HP 8447D 2016 08 09 2017 08 09 EMI Test Receiver Rohde Schwarz ESU 40 2015 12 05 2016 12 04 LOOP Antenna EMCO 6512 2016 10 12 2017 10 11 Measuring instrument setup in measured frequency band when specified detector function is used Frequency Band MHz Instrument Function Resolution bandwidth Vid...

Page 16: ...eading dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 2433 0000 95 3 5 8 89 5 94 0 4 5 Average 2433 0000 96 5 5 8 90 7 114 0 23 3 Peak 2452 0000 95 7 5 8 89 9 94 0 4 1 Average 2452 0000 97 0 5 8 91 2 114 0 22 8 Peak 2472 8000 96 0 5 7 90 3 94 0 3 7 Average 2472 8000 97 2 5 7 91 5 114 0 22 5 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor ...

Page 17: ...Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 2433 0000 94 4 5 8 88 6 94 0 5 4 Average 2433 0000 95 5 5 8 89 7 114 0 24 3 Peak 2452 0000 94 7 5 8 88 9 94 0 5 1 Average 2452 0000 95 8 5 8 90 0 114 0 24 0 Peak 2472 8000 95 3 5 7 89 6 94 0 4 4 Average 2472 8000 96 5 5 7 90 8 114 0 23 2 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Ga...

Page 18: ...ion Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 4866 0000 43 6 1 4 45 0 54 0 9 0 Average 4866 0000 50 6 1 4 52 0 74 0 22 0 Peak 4904 0000 44 0 1 5 45 5 54 0 8 5 Average 4904 0000 51 1 1 5 52 6 74 0 21 4 Peak 4945 6000 44 3 1 6 45 9 54 0 8 1 Average 4945 6000 51 4 1 6 53 0 74 0 21 0 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier G...

Page 19: ...n Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 4866 0000 42 0 1 4 43 4 54 0 10 6 Average 4866 0000 49 0 1 4 50 4 74 0 23 6 Peak 4904 0000 42 3 1 5 43 8 54 0 10 2 Average 4904 0000 49 3 1 5 50 8 74 0 23 2 Peak 4945 6000 42 5 1 6 44 1 54 0 9 9 Average 4945 6000 49 8 1 6 51 4 74 0 22 6 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier G...

Page 20: ...V m Over limit dB Detector 2333 0000 42 0 2 0 44 0 74 0 30 0 Peak 2359 0000 41 5 2 0 43 5 74 0 30 5 Peak 2486 5000 41 2 2 2 43 4 74 0 30 6 Peak 2496 0000 42 2 2 2 44 4 74 0 29 6 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 The margin value Limit Result 4 Peak measurements are compared to the average limit as peak measurements are ...

Page 21: ... m Over limit dB Detector 2342 0000 41 4 2 0 43 4 74 0 30 6 Peak 2365 5000 41 9 2 0 43 9 74 0 30 1 Peak 2486 0000 41 7 2 2 43 9 74 0 30 1 Peak 2494 0000 41 3 2 2 43 5 74 0 30 5 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 The margin value Limit Result 4 Peak measurements are compared to the average limit as peak measurements are b...

Page 22: ...umi 68 Test Mode OPERATION MODE AD1 FW8006 12 Freq MHz Reading dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 31 9400 29 0 2 9 26 1 40 0 13 9 QP 57 1600 36 7 12 3 24 4 40 0 15 6 QP 105 6600 35 3 8 6 26 7 43 5 16 8 QP 175 5000 33 1 8 4 24 7 43 5 18 8 QP 237 5800 30 4 6 3 24 1 46 0 21 9 QP 309 3600 27 4 2 8 24 6 46 0 21 4 QP Note 1 Result Reading Corrected Factor 2 Corr...

Page 23: ... Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 35 8200 36 8 4 2 32 6 40 0 7 4 QP 57 1600 42 6 12 3 30 3 40 0 9 7 QP 76 5600 37 2 12 6 24 6 40 0 15 4 QP 105 6600 36 5 8 6 27 9 43 5 15 6 QP 175 5000 37 7 8 4 29 3 43 5 14 2 QP 332 6400 27 9 2 4 25 5 46 0 20 5 QP Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 The ma...

Page 24: ... dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 49 4000 37 2 10 0 27 2 40 0 12 8 QP 127 0000 33 9 7 3 26 6 43 5 16 9 QP 258 9200 36 9 4 4 32 5 46 0 13 5 QP 270 5600 35 4 4 2 31 2 46 0 14 8 QP 392 7800 28 4 1 2 27 2 46 0 18 8 QP 644 9800 27 7 2 4 30 1 46 0 15 9 QP Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any ...

Page 25: ... dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 47 4600 43 5 8 6 34 9 40 0 5 1 QP 127 0000 35 5 7 3 28 2 43 5 15 3 QP 301 6000 27 8 3 0 24 8 46 0 21 2 QP 398 6000 27 1 1 0 26 1 46 0 19 9 QP 480 0800 27 5 0 1 27 4 46 0 18 6 QP 639 1600 27 0 2 2 29 2 46 0 16 8 QP Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 ...

Page 26: ...30MHz According to exploratory test no any obvious emission were detected from 9kHz to 30MHz 4 5 Field Strength Calculation The field strength is calculated by adding the Antenna Factor High Pass Filter Loss if used and Cable Loss and subtracting the Amplifier Gain if any from the measured reading The basic equation calculation is as follows Result Reading Corrected Factor where Corrected Factor A...

Page 27: ...ETC Report No 16 11 RBF 029 01 Sheet 22 of 41 Sheets FCC ID DMOEMXSW2 22 4 6 Photos of Radiation Measuring Setup ...

Page 28: ...ETC Report No 16 11 RBF 029 01 Sheet 23 of 41 Sheets FCC ID DMOEMXSW2 23 ...

Page 29: ...ositions and with a typical system configuration 3 Record the 6 or 8 highest emissions relative to the limit 4 Measure each frequency obtained from step 3 by a test receiver set on quasi peak detector function and then record the accuracy frequency and emission level If all emissions measured in the specified band are attenuated more than 20 dB from the limit this step would be ignored and the pea...

Page 30: ...24 31 04 10 15 41 19 55 87 14 68 Average 0 1524 43 94 10 15 54 09 65 87 11 78 QP 0 1633 23 96 10 15 34 11 55 30 21 19 Average 0 1633 39 16 10 15 49 31 65 30 15 99 QP 0 1685 24 18 10 15 34 33 55 03 20 70 Average 0 1685 42 40 10 15 52 55 65 03 12 48 QP 0 1777 30 90 10 15 41 05 54 59 13 54 Average 0 1777 43 67 10 15 53 82 64 59 10 77 QP 0 1904 21 99 10 15 32 14 54 02 21 88 Average 0 1904 36 86 10 15 ...

Page 31: ...7 10 55 96 18 86 Average 0 1508 40 21 10 15 50 36 65 96 15 60 QP 0 1722 25 81 10 15 35 96 54 86 18 90 Average 0 1722 39 13 10 15 49 28 64 86 15 58 QP 0 1787 28 79 10 16 38 95 54 55 15 60 Average 0 1787 41 09 10 16 51 25 64 55 13 30 QP 0 1874 20 54 10 16 30 70 54 15 23 45 Average 0 1874 35 18 10 16 45 34 64 15 18 81 QP 0 2094 17 75 10 16 27 91 53 23 25 32 Average 0 2094 33 53 10 16 43 69 63 23 19 5...

Page 32: ...0 15 24 35 54 55 30 20 Average 0 1787 24 18 10 15 34 33 64 55 30 22 QP 0 4637 19 11 10 18 29 29 46 63 17 34 Average 0 4637 25 88 10 18 36 06 56 63 20 57 QP 0 5792 15 12 10 19 25 31 46 00 20 69 Average 0 5792 22 62 10 19 32 81 56 00 23 19 QP 1 3030 13 94 10 23 24 17 46 00 21 83 Average 1 3030 19 09 10 23 29 32 56 00 26 68 QP 3 4910 13 70 10 31 24 01 46 00 21 99 Average 3 4910 19 56 10 31 29 87 56 0...

Page 33: ...0 15 24 38 55 74 31 36 Average 0 1549 24 88 10 15 35 03 65 74 30 71 QP 0 1758 13 05 10 16 23 21 54 68 31 47 Average 0 1758 23 89 10 16 34 05 64 68 30 63 QP 0 2185 9 49 10 16 19 65 52 88 33 23 Average 0 2185 20 72 10 16 30 88 62 88 32 00 QP 0 4612 13 00 10 18 23 18 46 67 23 49 Average 0 4612 19 36 10 18 29 54 56 67 27 13 QP 1 8480 9 20 10 25 19 45 46 00 26 55 Average 1 8480 15 06 10 25 25 31 56 00 ...

Page 34: ...of 22 5 dBμV is obtained and LISN Factor is 0 1 dB then the total of disturbance voltage is 22 6 dBμV RESULT 22 5 0 1 22 6 dBμV Level in μV Common Antilogarithm 22 6 dBμV 20 13 48 μV 5 5 Conducted Measurement Equipment The following test equipment are used during the conducted test Equipment Manufacturer Model No Calibration Date Next Cal Date EMI Test Receiver Rohde Schwarz ESCI 2015 12 05 2016 1...

Page 35: ...ETC Report No 16 11 RBF 029 01 Sheet 30 of 41 Sheets FCC ID DMOEMXSW2 30 5 6 Photos of Conduction Measuring Setup ...

Page 36: ... 203 an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device 6 2 Antenna Construction The device is equipped with the permanently attached on board PCB antenna No consideration of replacement Please refer to the construction Photo for details ...

Page 37: ...n its linear range 3 Measure the highest amplitude appearing on spectral display and set it as a reference level Plot the graph with marking the highest point and edge frequency 4 Repeat above procedures until all measured frequencies were complete B Radiated Emission method 1 Following the measurement procedures in section 4 2 with the EUT set to any one measured frequency within its operating ra...

Page 38: ...ext Cal Date Test Receiver Rohde Schwarz ESCI 2015 12 05 2016 12 04 EMI Test Receiver Rohde Schwarz ESL 2016 03 26 2017 03 25 Bi Log Antenna ETC MCTD 2786 2016 07 15 2017 07 14 Log periodic Antenna EMCO 3146 2016 07 05 2017 07 04 Double Ridged Guide Horn Antenna EMCO 3116 2016 10 05 2017 10 04 Biconical Antenna EMCO 3110 2016 07 05 2017 07 04 Double Ridged Antenna EMCO 3115 2016 10 05 2017 10 04 A...

Page 39: ...t Mode CH LO HI BANDEDGE Freq MHz Reading dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 2400 0000 35 2 5 8 29 4 54 0 24 6 Average 2400 0000 53 7 5 8 47 9 74 0 26 1 Peak 2483 5000 35 1 5 7 29 4 54 0 24 6 Average 2483 5000 60 3 5 7 54 6 74 0 19 4 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 The margin ...

Page 40: ...req MHz Reading dBuV Correction Factor dB Result dBuV m Limits dBuV m Over limit dB Detector 2400 0000 35 0 5 8 29 2 54 0 24 8 Average 2400 0000 50 3 5 8 44 5 74 0 29 5 Peak 2483 5000 35 1 5 7 29 4 54 0 24 6 Average 2483 5000 57 5 5 7 51 8 74 0 22 2 Peak Note 1 Result Reading Corrected Factor 2 Corrected Factor Antenna Factor Cable Loss Amplifier Gain if any 3 The margin value Limit Result 4 The e...

Page 41: ...idity 68 Duty Cycle Calculation Period 6 736410ms Transmission duration T 1 576154ms 2 403846ms 3 98ms Duty Cycle 3 98 6 736410 100 59 1 The duty cycle is less than 98 For the average measurement of the radiated emission test the VBW setting is 1 T where the T is the minimum transmission duration over which the transmitter is on and is transmitting at its maximum power control level for the tested...

Page 42: ...ETC Report No 16 11 RBF 029 01 Sheet 37 of 41 Sheets FCC ID DMOEMXSW2 37 Period Transmission duration T ...

Page 43: ...om an external generator 2 Position the EUT as shown in figure 4 without connection to measurement instrument Turn on the EUT and connect it to measurement instrument Then set it to any one convenient frequency within its operating range The settings of spectrum analyzer is as followings 1 Set RBW in the range of 1 to 5 of the OBW 2 Set the video bandwidth VBW 3 x RBW 3 Detector Peak 4 Trace mode ...

Page 44: ...0 2017 11 09 9 4 Measurement Data Test Date Nov 25 2016 Temperature 25 C Humidity 68 a Lower Band Edge The 20 dB bandwidth of the emission is contained within the frequency band designated in the rule section 15 249 b Upper Band Edge The 20 dB bandwidth of the emission is contained within the frequency band designated in the rule section 15 249 Note The expanded uncertainty frequency 1 65 10 6 1 G...

Page 45: ... kHz VBW 10 kHz SWT 560 ms Ref 10 dBm Att 20 dB Center 2 433 GHz Span 5 MHz 500 kHz 1 PK VIEW 110 100 90 80 70 60 50 40 30 20 10 1 Marker 1 T1 50 77 dBm 2 432610000 GHz 1 Delta 1 T1 3 42 dB 770 000000000 kHz D1 41 94 dBm The 20 dB bandwidth of the emission is contained within the frequency band designated in the rule section 15 249 ...

Page 46: ...0 dBm Att 20 dB 500 kHz Center 2 4728 GHz Span 5 MHz RBW 3 kHz VBW 10 kHz SWT 560 ms 1 PK VIEW 110 100 90 80 70 60 50 40 30 20 10 1 Marker 1 T1 53 47 dBm 2 472400000 GHz 1 Delta 1 T1 0 19 dB 770 000000000 kHz D1 43 93 dBm The 20 dB bandwidth of the emission is contained within the frequency band designated in the rule section 15 249 ...

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