Class II Change Application for Grant of Equipment Authorization

Nokia Solutions and Networks AirScale Base tation FRIJ Remote Radio Head FCC ID: VBNFRIJ-01 IC: 661W-FRIJ

Walker, Joe (Nokia - US/Irving)

Test Report

Nokia Solutions and Networks AHFIB-01 Remote Radio Head VBNAHFIB-01 VBNAHFIB01 ahfib 01

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NTS Test Report No. PR089138 Rev. 0 Page 1 of 50

Class II Change Application for Grant of Equipment Authorization

CERTIFICATE #: 0214.19

Nokia Solutions and Networks Airscale Base Transceiver Station
AHFIB Remote Radio Head
FCC ID: VBNAHFIB-01 IC: 661W-AHFIB

Test Sites: Nokia Solutions and Networks 6000 Connection Drive Irving, TX 75039 and
National Technical Systems ­ Plano 1701 E Plano Pkwy #150 Plano, TX 75074
NTS Plano FCC Laboratory Designation No.: US1077 NTS Plano ISED Laboratory Assigned Code: 4319A

Test Dates: October 15-16, 2018 Total Number of Pages: 50

Prepared By:

Approved By:

______________________ Alex Mathews EMI Project Manager

________________________ Chelsie Morrow Quality Assurance

Reviewed By:

______________________
Daniel Ramirez
EMI Project Engineer
This report and the information contained herein represent the results of testing of only those articles/products identified in this document and selected by the client. The tests were performed to specifications and/or procedures approved by the client. National Technical Systems ("NTS") makes no representations expressed or implied that such testing fully demonstrates efficiency, performance, reliability, or any other characteristic of the articles being tested, or similar products. This report should not be relied upon as an endorsement or certification by NTS of the equipment tested, nor does it present any statement whatsoever as to the merchantability or fitness of the test article or similar products for a particular purpose. This document shall not be reproduced except in full without written approval from NTS.

NTS Test Report No. PR089138 Rev. 0 Page 2 of 50

Revision History Rev# 0

Date 10/26/2018

Comments Initial Draft

Modified By Daniel Ramirez

NTS Test Report No. PR089138 Rev. 0 Page 3 of 50

CONTENTS

1. SCOPE/OBJECTIVE .............................................................................................................. 4

2. RESULT SUMMARY FOR THE CLASS II TESTING ........................................................ 6

3. EUT HARDWARE ................................................................................................................. 7

4. TEST MEASUREMENT EQUIPMENT ................................................................................ 7

5. AUXILLARY EQUIPMENT.................................................................................................. 7

6. SUPPORT EQUIPMENT........................................................................................................ 7

7. EUT SOFTWARE ................................................................................................................... 8

8. RF TEST SETUP DIAGRAMS .............................................................................................. 8

9. TEST SETUP PHOTOGRAPHS ............................................................................................ 9

10. AHFIB LTE DOWNLINK BAND EDGE EARFCNS ..................................................... 10

11. TEST DATA FOR AHFIB ................................................................................................ 11

11.1. 11.2. 11.3. 11.4.

RF Output Power..................................................................................................................... 12 Emission Bandwidth (26 dB down and 99%) .......................................................................... 17 Antenna Port Conducted Band Edge ...................................................................................... 20 Transmitter Antenna Port Conducted Emissions.................................................................... 25

NTS Test Report No. PR089138 Rev. 0 Page 4 of 50
1. SCOPE/OBJECTIVE A class II permissive change on the original filing is being pursued to add a single Narrow band Internet of Things Guard Band (NB IoT GB here after) carrier to the AHFIB AirScale Base Station Remote Radio Head Federal Communication Commission and Industry Canada certifications. Please refer to the test report on the original certification (NTS Report PR072254 Rev 1 dated March 16, 2018) for details on all required testing. All conducted RF testing performed for the original certification testing has been repeated using NB IoT GB for this class II permissive change per correspondence/guidance from Nemko TCB. NB IoT offsets from LTE carrier center frequencies were: LTE10: +/-4597.5 kHz; LTE15: +/-6892.5 kHz; and, LTE20: +/-9097.5 kHz. Tests performed under the class II change effort include RF power, peak to average power ratio, emission bandwidth (99% and 26 dB down), band edge spurious emissions (+ 1MHz), and conducted spurious emissions. Antenna port conducted RF measurements were taken with NTS personnel (Jose Mendez) at Nokia located at 6000 Connection Drive, Irving, Texas, on October 15-16, 2018. The base station and remote radio head software for this testing is an updated release that includes the single carrier NB IoT GB support. The LTE and guard band modulation types were both QPSK for all testing herein. The test sample was selected and prepared by John LoPresti of Nokia Solutions and Networks. Conducted Emissions data has been collected, reduced, and analyzed within this report in accordance with measurement guidelines set forth in the following reference standards: ANSI C63.26-2015 FCC KDB 971168 DO1 v03r01 FCC KDB 662911 DO1 v02r01
STATEMENT OF COMPLIANCE The tested sample of Nokia Solutions and Networks product AHFIB AirScale Base Station Remote Radio Head complied with the requirements of the standards and frequency bands declared in the scope of this test report.
Maintenance of compliance is the responsibility of the manufacturer. Any modifications to the product should be assessed to determine their potential impact on the compliance status of the device with respect to the standards detailed in this test report.
DEVIATIONS FROM THE STANDARDS No deviations were made from the published requirements listed in the scope of this report.

NTS Test Report No. PR089138 Rev. 0 Page 5 of 50

MEASUREMENT UNCERTAINTIES

Measurement uncertainties of the test facility based on a 95% confidence level are as follows:

Test Radio frequency RF power conducted RF power radiated RF power density conducted Spurious emissions conducted Adjacent channel power Spurious emissions radiated Temperature Humidity Voltage (DC) Voltage (AC)

Table 1.

Measurement Uncertainties Uncertainty ± 0.2ppm ±1.2 dB ±3.3 dB ±1.2 dB ±1.2 dB ±0.4 dB ±4 dB ±1°C ±1.6 % ±0.2 % ±0.3 %

NTS Test Report No. PR089138 Rev. 0 Page 6 of 50
2. RESULT SUMMARY FOR THE CLASS II TESTING

The following tables provide a summary (Class II testing only) of the test results:

FCC
24.229 27.5(h)&(j)
2.1047 2.1033(c)(4)
24.232 27.50(d)(2)
24.232 27.50(d)(5)

IC
RSS-133 Sec 6.1 RSS-139 Sec 6.1
RSS-133 Sec 6.2
RSS-139 Sec 6.2
RSS-133 Sec 6.4 RSS-139 Sec 6.5
RSS-133 Sec 6.4 RSS-139 Sec 6.5
RSS-133 Sec 2.3 RSS-Gen Sec 6.6

24.238 27.53(h)(3)

AHFIB with LTE plus single NB IoT Guard Band carrier

Description

Measured

Frequency Ranges

LTE10: 1935-1990 MHz LTE10: 2115.0 - 2150.0 MHz

Modulation Type

NB IoT Guard band (QPSK) with LTE10 (QPSK)

Limit
1930 ­ 1995 MHz
2110.0 ­ 2155.0 MHz
Digital

Results Pass Pass

Output Power Peak to Average Ratio

Highest Conducted Power Output RMS: 45.53dBm EIRP depends on
antenna gain which is unknown.
Highest Measured PAPR: 8.20dB

FCC: 1640W EIRP
IC: 100W Conducted
13dB

Pass Pass

99% Emission Bandwidth

LTE10: 9.24 MHz IC Emission Designator is 9M24F9W

26dB down Emission Bandwidth

LTE10: 9.81 MHz FCC Emission Designator is 9M81F9W

Remain in Block
Remain in Block

Pass Pass

24.238 27.53(h)

RSS-133 Sec 6.5.1
RSS-139 Sec 6.6

Transmitter Spurious Emissions at the Antenna
Terminal (See Note 1)

< -19dBm

-19dBm per Transmit Chain

Pass

Note 1: Based on 1MHz RBW. In the 1MHz immediately outside and adjacent to the frequency block a RBW of at least 1% of the emission bandwidth was used

Note 2: In addition to the above, refer to the original certification report (NTS Report PR072254 Rev 1 dated March 16, 2018) for the complete list of test results

3. EUT HARDWARE

Company

Model

Description

NTS Test Report No. PR089138 Rev. 0 Page 7 of 50

Part/Serial Number

FCC ID/IC Number

Nokia Solutions and Networks AHFIB AirScale BTS RRH

Part#: 474216A.101 Serial#: K9174553644

FCC ID: VBNAHFIB-01 IC ID: 661W-AHFIB

4. TEST MEASUREMENT EQUIPMENT

Company

Type

Model

Keysight Keysight
R&S R&S

Spectrum Analyzer Spectrum Analyzer Network Analyzer Network Analyzer

MXA N2090A PSA E4440A
ZVL ZVA50

Serial Number US46220313 MY44303970
102098 100241

Last Cal 02/16/17 10/18/17 02/11/18 05/04/2018

Cal Due 02/16/19 10/18/19 02/11/19 05/04/2019

5. AUXILLARY EQUIPMENT

Company

Description

Aeroflex/Weinschel Aeroflex/Weinschel
Weinschel Microwave Circuits

Attenuator, 20 dB, 100 W Attenuator, 20 dB, 50 W Attenuator, 20 dB, 150 W Low Pass Filter, DC-1350 MHz

Part Number 48-20-33 24-20-34
57-20-33-LM L13502G1

Serial Number BT3184 BH6436 MC060
2050-02 DC0229

6. SUPPORT EQUIPMENT

Company

Model

Description

Part/Serial Number

Nokia

ASIA

Airscale System Module

Part#: 473095A.101, Serial#: L1163006115

Nokia

6GHz SFP Module

FOSH 6G SFP+ 300m 850nm

PN: 472579A.101 SN: FR162521945

Nokia

6GHz SFP Module

FOSH 6G SFP+ 300m 850nm

PN: 472579A.101 SN: FR1625704824

HP

Z240

Tower Workstation (PC)

N/A

FCC ID/IC Number N/A
N/A

NTS Test Report No. PR089138 Rev. 0 Page 8 of 50

7. EUT SOFTWARE
The base station and RF module software for this testing is an updated release that includes the NB IoT GB type as defined below.
(1) RFM Unit Software: FRM 58.08.R05H (2) System Module Software: FL18SP_ENB_0000_000623_0000 (3) BTS Manager Software: FL18SP-0000_000499_000000

FL18SP only supports NBIOT guard band signals for LTE10, LTE15 and LTE20 bandwidths, and for the AHFIB, only LTE10 is supported. Therefore, LTE10 was the only configuration tested for this feature. As required in 3GPP TS 36.141 §6.1.4, the IOT carrier configured was given Cell ID 103.

8. RF TEST SETUP DIAGRAMS The following are the setups used in the RF conducted emissions testing.

RFM Ant 1 Output

20 dB Attenuator, 150 W

Low Pass Filter, DC to 1350 MHz

Setup for 9 kHz to 10MHz Measurements

Spectrum Analyzer

RFM Ant 1 Output

20 dB Atten, 100 W

20 dB Atten, 50 W

Setup for 10MHz to 22GHz Measurements

Spectrum Analyzer

9. TEST SETUP PHOTOGRAPHS

NTS Test Report No. PR089138 Rev. 0 Page 9 of 50

10MHz to 22GHz Setup Photo 9 kHz to 10MHz Setup Photo

NTS Test Report No. PR089138 Rev. 0 Page 10 of 50

10. AHFIB LTE DOWNLINK BAND EDGE EARFCNS
Band 25 (BTS Rx: 1850 to 1915 MHz/BTS Tx: 1930 to 1995 MHz) and Band 66 (BTS Rx: 1710 to 1780 MHz/BTS Tx: 2110 to 2200 MHz) band edge downlink (BTS Transmit)
EARFCNs for LTE channel bandwidths (5, 10, 15 and 20 MHz) are provided in following table. The EARFCN is defined as E-UTRA Absolute Radio Frequency Channel Number. The channel spacing is 100 kHz between channel numbers.

EARFCN Freq.

Table 2.

band 66

LTE5

B

M

66461

66886

2112.5

2155

AHFIB LTE Center Frequencies and Channels

band 25

LTE5

T

B

M

67311

EARFCN

8065

8365

2197.5

Freq.

1932.5

1962.5

T 8665 1992.5

EARFCN Freq.

B 66486 2115

LTE10 M
66886 2155

T 67286 2195

EARFCN Freq.

B 8090 1935

LTE10 M
8365 1962.5

T 8640 1990

EARFCN Freq.

B 66511 2117.5

LTE15 M
66886 2155

T 67261 2192.5

EARFCN Freq.

B 8115 1937.5

LTE15 M
8365 1962.5

T 8615 1987.5

EARFCN Freq.

B 66536 2120

LTE20

M

T

B

66886

67236

EARFCN

8140

2155

2190

Freq.

1940

All frequencies are in MHz, EARFCN numbers are unitless.

B=bottom channel LTE center frequency

M=middle channel LTE center frequency

T= top channel LTE center frequency

LTE20 M
8365 1962.5

T 8590 1985

Band band 66 band 25

Table 3. AHFIB Downlink Band Edge Frequencies

Bottom Edge Freq. (MHz)

Top Edge Freq. (MHz)

2110

2200

1930

1995

Band Edge frequencies are the same for all LTE bandwidths.

NTS Test Report No. PR089138 Rev. 0 Page 11 of 50

11. TEST DATA FOR AHFIB
All conducted RF measurements for this test effort in this section were made at AHFIB antenna port 2, consistent with the original certification. The general test setup used is provided below.

AHFIB
Antenna 1 Antenna 2 Antenna 3 Antenna 4

Load
Test setup (see pics)
Load

Spectrum Analyzer
Load

General Test Setup Used for Conducted RF Measurements on AHFIB

NTS Test Report No. PR089138 Rev. 0 Page 12 of 50

11.1. RF Output Power
Peak and RMS Average RF output power was measured at the AHFIB RRH antenna port 2. Measurements were made on the bottom, middle and top channels on each band (25 and 66) placing the NB IoT Guard Band carrier at the lower end of the carrier and then the upper end of the carrier for the LTE bandwidths of 10MHz, 15MHz, and 20MHz. Peak to average power ratio (PAPR) has been calculated as described in section 5.7.2 of KDB971168 D01 v03r01. The results of the power measurements and PAPR calculations are provided in the tables below.

Freq. Band
25 25 25
Freq. Band
25 25 25
Freq. Band
66 66 66
Freq. Band
66 66 66

Table 4. RF Output Power ­ Band 25, LTE10, Lower NB IoT GB

Freq. Channel LTE Bandwidth

NB IoT GB placement

LTE - Aggregate w/NB IoT GB

Bottom Channel

LTE10

Lower

53.55

45.53

8.02

Middle Channel

LTE10

Lower

53.36

45.28

8.06

Top Channel

LTE10

Lower

53.39

45.42

7.97

Table 5. RF Output Power ­ Band 25, LTE10, Upper NB IoT GB

Freq. Channel LTE Bandwidth

NB IoT GB placement

LTE - Aggregate w/NB IoT GB

Bottom Channel

LTE10

Upper

53.59

45.50

8.09

Middle Channel

LTE10

Upper

53.29

45.25

8.04

Top Channel

LTE10

Upper

53.38

45.45

7.93

Table 6. RF Output Power ­ Band 66, LTE10, Lower NB IoT GB

Freq. Channel LTE Bandwidth

NB IoT GB placement

LTE - Aggregate w/NB IoT GB

Bottom Channel

LTE10

Lower

53.35

45.31

8.04

Middle Channel

LTE10

Lower

53.4

45.40

8.00

Top Channel

LTE10

Lower

53.37

45.32

8.05

Table 7. RF Output Power ­ Band 66, LTE10, Upper NB IoT GB

Freq. Channel LTE Bandwidth

NB IoT GB placement

LTE - Aggregate w/NB IoT GB

Bottom Channel

LTE10

Upper

53.49

45.37

8.12

Middle Channel

LTE10

Upper

53.53

45.37

8.16

Top Channel

LTE10

Upper

53.48

45.28

8.20

All measurement results are provided in the following pages. The total measurement RF path loss of the test setup (attenuator and test cables) was 41.37 dB for Band 25 and 41.46 for Band 66 and is accounted for by the spectrum analyzer external gain offset.

NTS Test Report No. PR089138 Rev. 0 Page 13 of 50
Channel Power Plots, Band 25, LTE10, Lower NB IoT GB Carrier:

LTE10 Bottom Channel Peak

LTE10 Bottom Channel Average

LTE10 Middle Channel Peak

LTE10 Middle Channel Average

LTE10 Top Channel Peak

LTE10 Top Channel Average

NTS Test Report No. PR089138 Rev. 0 Page 14 of 50
Channel Power Plots, Band 25, LTE10, Upper NB IoT GB Carrier:

LTE10 Bottom Channel Peak

LTE10 Bottom Channel Average

LTE10 Middle Channel Peak

LTE10 Middle Channel Average

LTE10 Top Channel Peak

LTE10 Top Channel Average

NTS Test Report No. PR089138 Rev. 0 Page 15 of 50
Channel Power Plots, Band 66, LTE10, Lower NB IoT GB Carrier:

LTE10 Bottom Channel Peak

LTE10 Bottom Channel Average

LTE10 Middle Channel Peak

LTE10 Middle Channel Average

LTE10 Top Channel Peak

LTE10 Top Channel Average

NTS Test Report No. PR089138 Rev. 0 Page 16 of 50
Channel Power Plots, Band 66, LTE10, Upper NB IoT GB Carrier:

LTE10 Bottom Channel Peak

LTE10 Bottom Channel Average

LTE10 Middle Channel Peak

LTE10 Middle Channel Average

LTE10 Top Channel Peak

LTE10 Top Channel Average

NTS Test Report No. PR089138 Rev. 0 Page 17 of 50

11.2. Emission Bandwidth (26 dB down and 99%)

Emission bandwidth measurements were made at AHFIB antenna port 2 for NB IoT GB. Measurements were made on the bottom, middle and top channels for LTE bandwidths of 10MHz, 15MHz, and 20MHz. The results are provided in the following table.

Table 8. Emission Bandwidth Band 25 (Lower Guard Band)

Band 25 NB IoT Guard band (Lower)

LTE Bandwidth

Bottom Channel

26dB(MHz)

99% (MHz)

Middle Channel

26dB(MHz)

99% (MHz)

Top Channel

26dB(MHz)

99% (MHz)

10M

9.80

9.24

9.78

9.23

9.80

9.23

15M

-

-

-

-

-

-

20M

-

-

-

-

-

-

LTE Bandwidth
10M 15M 20M

Table 9. Emission Bandwidth Band 66 (Lower Guard Band)
Band 66 NB IoT Guard band (Lower)

Bottom Channel

Middle Channel

Top Channel

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

9.81

9.24

9.79

9.23

9.80

9.23

-

-

-

-

-

-

-

-

-

-

-

-

Table 10. Emission Bandwidth Band 25 (Upper Guard Band)
Band 25 NB IoT Guard band (upper)

LTE Bandwidth

Bottom Channel

Middle Channel

Top Channel

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

10M

9.80

9.23

9.79

9.24

9.80

9.24

15M

-

-

-

-

-

-

20M

-

-

-

-

-

-

LTE Bandwidth
10M 15M 20M

Table 11. Emission Bandwidth Band 66 (Upper Guard Band)
Band 66 NB IoT Guard band (upper)

Bottom Channel

Middle Channel

Top Channel

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

26dB(MHz)

99% (MHz)

9.80

9.24

9.56

9.19

9.80

9.24

-

-

-

-

-

-

-

-

-

-

-

-

Emission bandwidth measurement data are provided in the following pages.

NTS Test Report No. PR089138 Rev. 0 Page 18 of 50

Emission Bandwidth Plots, NB IoT GB Carrier in Lower Guard Band:

LTE10 Band 25 Bottom Channel

LTE10 Band 66 Bottom Channel

LTE10 Band 25 Middle Channel

LTE10 Band 66 Middle Channel

LTE10 Band 25 Top Channel

LTE10 Band 66 Top Channel

NTS Test Report No. PR089138 Rev. 0 Page 19 of 50
Emission Bandwidth Plots, NB IoT GB Carrier in Upper Guard Band:

LTE10 Band 25 Bottom Channel

LTE10 Band 66 Bottom Channel

LTE10 Band 25 Middle Channel

LTE10 Band 66 Middle Channel

LTE10 Band 25 Top Channel

LTE10 Band 66 Top Channel

NTS Test Report No. PR089138 Rev. 0 Page 20 of 50

11.3. Antenna Port Conducted Band Edge

Conducted band edge measurements were made at AHFIB RRH antenna port 2. The AHFIB was operated at the band edge frequencies with a single NB IoT Guard band carrier for 10MHz LTE bandwidth.
The same limit of -13dBm used in the original certification testing is used for this testing. The limit is adjusted to -19dBm [-13dBm -10 log (4)] per FCC KDB 662911D01 v02r01 because the BTS may operate as a 4 port MIMO transmitter.
Measurements were performed with the spectrum analyzer in the RMS average mode over 100 traces. In the 1MHz bands outside and adjacent to the frequency block, a resolution bandwidth of 1% of the emission bandwidth was used. In the 1 to 2MHz frequency range outside the band edge (i.e.: 2108 to 2109MHz and 2156 to 2157MHz bands) the RBW was again reduced to 1% of the emission bandwidth and the power integrated over 1MHz. In the 2 to 5MHz frequency range outside the band edge (i.e.: 2105 to 2108MHz and 2154 to 2156MHz bands) a 1MHz RBW and 3MHz VBW was used.
The results are summarized in the following table. The highest (worst case) emissions from the measurement data are provided.
Table 12. Band Edge (Band 25 Lower Guard Band)

LTE Bandwidth

Lower Guard Band Carrier Bottom Channel Top Channel

Limit (dBm)

10M

-20.64

-23.53

-19

Table 13. Band Edge (Band 25 Upper Guard Band)

LTE Bandwidth

Upper Guard Band Carrier Bottom Channel Top Channel

Limit (dBm)

10M

-24.42

-22.47

-19

Table 14. Band Edge (Band 66 Lower Guard Band)

LTE Bandwidth

Lower Guard Band Carrier Bottom Channel Top Channel

Limit (dBm)

10M

-21.63

-22.70

-19

Table 15. Band Edge (Band 66 Upper Guard Band)

LTE Bandwidth

Upper Guard Band Carrier Bottom Channel Top Channel

Limit (dBm)

10M

-24.00

-21.03

-19

The total measurement RF path loss of the test setup (attenuator and test cables) was 41.37 dB for Band 25 and 41.46 for Band 66 and is accounted for by the spectrum analyzer external gain offset.
Conducted band edge measurements are provided in the following pages.

NTS Test Report No. PR089138 Rev. 0 Page 21 of 50
Band 25 LTE10 + Lower NB IoT GB Carrier Band Edge Plots:

LTE10 Bottom Channel LBE 1929 to 1931MHz

LTE10 Top Channel UBE 1994 to 1996MHz

LTE10 Bottom Channel LBE 1928 to 1929MHz

LTE10 Top Channel UBE 1996 to 1997MHz

LTE10 Bottom Channel LBE 1925 to 1928MHz

LTE10 Top Channel UBE 1997 to 2000MHz

NTS Test Report No. PR089138 Rev. 0 Page 22 of 50
Band 25 LTE10 + Upper NB IoT GB Carrier Band Edge Plots:

LTE10 Bottom Channel LBE 1929 to 1931MHz

LTE10 Top Channel UBE 1994 to 1996MHz

LTE10 Bottom Channel LBE 1928 to 1929MHz

LTE10 Top Channel UBE 1996 to 1997MHz

LTE10 Bottom Channel LBE 1925 to 1928MHz

LTE10 Top Channel UBE 1997 to 2000MHz

NTS Test Report No. PR089138 Rev. 0 Page 23 of 50
Band 66 LTE10 + Lower NB IoT GB Carrier Band Edge Plots:

LTE10 Bottom Channel LBE 2109 to 2111MHz

LTE10 Top Channel UBE 2199 to 2201MHz

LTE10 Bottom Channel LBE 2108 to 2109MHz

LTE10 Top Channel UBE 2201 to 2202MHz

LTE10 Bottom Channel LBE 2105 to 2108MHz

LTE10 Top Channel UBE 2202 to 2205MHz

NTS Test Report No. PR089138 Rev. 0 Page 24 of 50
Band 66 LTE10 + Upper NB IoT GB Carrier Band Edge Plots:

LTE10 Bottom Channel LBE 2109 to 2111MHz

LTE10 Top Channel UBE 2199 to 2201MHz

LTE10 Bottom Channel LBE 2108 to 2109MHz

LTE10 Top Channel UBE 2201 to 2202MHz

LTE10 Bottom Channel LBE 2105 to 2108MHz

LTE10 Top Channel UBE 2202 to 2205MHz

NTS Test Report No. PR089138 Rev. 0 Page 25 of 50

11.4. Transmitter Antenna Port Conducted Emissions
Transmitter conducted emission measurements were made at AHFIB RRH antenna port #2. Measurements were performed over the 9kHz to 22GHz frequency range. The AHFIB was operated on the bottom, middle and top channels on both bands 25 and 66 with a single NB IoT Guard band carrier with LTE bandwidth of 10MHz.
The same limit of -13dBm used in the original certification testing is used for this testing. The limit is adjusted to 19dBm [-13dBm -10 log (4)] per FCC KDB 662911D01 v02r01 because the BTS may operate as a 4 port MIMO transmitter. The required measurement parameters include a 1MHz bandwidth with power measured in average value (since transmitter power was measured in average value). Measurements were performed with a spectrum analyzer using a peak detector with either max hold over 50 sweeps or RMS average mode over 100 traces (see table below). The required limit of -13 dBm was used as a base to calculate the following adjustments. The limit was adjusted from -13 dBm to -19dBm [-13dBm -10 log (4)] per FCC KDB 662911D01 v02r01 because the BTS may operate as a 4 port MIMO transmitter. The limit for the 9kHz to 150kHz frequency range was adjusted from 19 dBm to ­49dBm to correct for a spectrum analyzer RBW of 1kHz versus required RBW of 1MHz [i.e.: 49dBm = -19dBm -10log(1MHz/1kHz)]. The limit for the 150kHz to 20MHz frequency range was adjusted to ­ 29dBm to correct for a spectrum analyzer RBW of 100kHz versus required RBW of 1MHz [i.e.: -29dBm = 19dBm - 10log(1MHz/100kHz)]. The required limit of -19dBm with a RBW of 1MHz was used for all other frequency ranges.
The spectrum analyzer settings that were used for this test are summarized in the following table.

TABLE OF ANALYZER SETTINGS FOR CONDUCTED SPURIOUS EMISSIONS

Frequency Range

RBW

VBW

Number of Data Points

Detector/ Avg type

Sweep Time

Max Hold over

Path Loss Note (1)

9kHz to 150kHz

1kHz

3kHz

301

150kHz to 10MHz

100kHz 300kHz

201

10MHz to 100MHz

1MHz

3MHz

201

RMS Avg RMS Avg
RMS Avg

Auto Auto
Auto

Note (2) Note (2)
Note (2)

18.76dB 18.76dB
37.81dB

100MHz to 1910MHz

1MHz

3MHz

1811

Max Peak

Auto

50 Sweeps

37.9dB

1910MHz to 2220MHz

1MHz

3MHz

2001

RMS Avg

Auto

Note (2)

41.46dB

2220GHz to 6.2GHz

1MHz

3MHz

3781

Max Peak

Auto

50 Sweeps

41.56dB

6.2GHz to 10GHz

1MHz

3MHz

4001

Max Peak

Auto

50 Sweeps

42.45dB

10GHz to 14GHz

1MHz

3MHz

4001

Max Peak

Auto

50 Sweeps

42.31dB

14GHz to 18GHz

1MHz

3MHz

8001

RMS Avg

Auto

Note (2)

44.04dB

18GHz to 22GHz

1MHz

3MHz

8001

RMS Avg

Auto

Note (2)

44.16dB

Note 1: The total measurement RF path loss of the test setup (attenuators, test cables and filters) is accounted for by the spectrum analyzer external gain offset.

Note 2: Max Hold not used and instead measurements were performed with the spectrum analyzer in the RMS average mode over 100 traces.

A low pass/carrier blocking filter was used to reduce measurement instrumentation noise floor for the frequency ranges less than 10MHz.The total measurement RF path loss of the test setup (attenuators, filter, cables) as shown in the table is accounted for by the spectrum analyzer reference level offset. The display line or limit line on the plots reflects the required limit.
Conducted spurious emission plots/measurements are provided in the following pages.



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