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GFTL-23:001729 Uen, Rev B, 2024-03-18

Test report issued by an Accredited Testing Laboratory

Accred. no. 1761

Testing
ISO/IEC 17025

EMF Test Report: Ericsson AIR 3283 B25 B66 NR (FCC)

Document number: GFTL-23:001729 Uen Rev B Date of report: 2024-03-18

Testing laboratory: Ericsson EMF Research Company/Client: Mehdi Ardavan

Laboratory
Ericsson Canada
Ericsson AB 349 Terry Fox Drive
SE-164 80 Stockholm Ottawa ON K2K 2V6
Sweden Canada

Tests performed by: Paramananda Joshi Dates of tests: 2023-11-14 – 2023-11-23

Manufacturer and Ericsson AIR 3283 B25 B66

market name(s) of
device:

Testing has been FCC OET Bulletin 65

performed in IEC 62232:2022
accordance with:

Test results: RF exposure compliance boundaries (exclusion zones) in conformity with FCC 47 CFR 1.1310 to be
included in the Customer Product Information (CPI) for Ericsson AIR 3283 B25 B66 .

Additional information:

Signature: Test Engineer Quality Manager

______________________________ ___________________
Paramananda Joshi Christer Törnevik
Senior Researcher Senior Expert – EMF and Health
paramananda.joshi@ericsson.com christer.tornevik@ericsson.com
Tel: +46 725074006 Tel: +46 705863148

© Telefonaktiebolaget LM Ericsson AB.

This report shall not be reproduced except in full, without written approval of the laboratory.
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Summary of EMF Test Report1

Equipment under test (EUT)
Product name AIR 3283 B25 B66

Product number KRD 901 892/11, KRD 901 892/1

Supported bands, Tx frequency range B25 1930 - 1995 NR

(MHz) and standards B66 2110 - 2200 NR
Duplexing technology
FDD

Results
RF exposure compliance boundaries, outside of which the exposure is below the general public (GP) and
occupational (O) exposure limits, are listed below.
Dimensions of the box-shaped compliance boundary for general public (GP) and occupational (O) exposure for AIR 3283 B25
B66 applicable in the USA and markets employing the FCC RF exposure limits. The compliance boundaries are determined for
maximum nominal output power with power tolerance included.

Mode and output power for AIR 3283

Band Standard IEC 62232 installation class Power tolerance

B25 + B66 NR E+ 1 dB

Maximum Dimensions of the box-shaped compliance boundary (m)

nominal
Exposure Electrical Distance in Distance
output power Sector shape Width Height
condition tilt (deg) front of EUT behind EUT
from the
radio GP O GP O GP O GP O

Macro 2 25.8 11.5 32.2 14.4 8.3 3.7 0.2 0.2

80 W (B25) + Theoretical
Macro,Hotspot 7 26.8 12.0 32.9 14.7 8.8 4.0 0.2 0.2
240 W (B66) maximum
Macro 12 25.3 11.4 31.6 14.2 11.4 5.1 0.2 0.2

Macro 2 25.3 11.3 31.8 14.3 8.2 3.7 0.2 0.2

160 W (B25)
Theoretical
+ 160 W Macro,Hotspot 7 26.2 11.7 32.3 14.5 8.7 3.9 0.2 0.2
maximum
(B66)
Macro 12 24.8 11.1 31.3 14.0 11.2 5.1 0.2 0.2

Macro 2 24.8 11.1 31.5 14.1 8.2 3.7 0.2 0.2

240 W (B25) Theoretical
Macro,Hotspot 7 25.6 11.5 31.8 14.3 8.6 3.9 0.2 0.2
+ 80 W (B66) maximum
Macro 12 24.2 10.9 31.0 13.9 11.1 5.0 0.2 0.2

For the power levels specified in the table with tolerances added, and the upward rounding of compliance boundary dimensions to
the nearest decimeter, the specified results are conservative.

1
This page contains a summary of the test results. The full report provides a complete description of all test details and results.
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1 General information
The test results presented in this report define compliance boundaries for AIR 3283 B25 B66 NR. Outside of
these compliance boundaries the radio frequency (RF) exposure levels are below the exposure limits specified
the Federal Communications Commission (FCC) [1]. The tests were performed by calculations in accordance
with the Ericsson RF exposure calculation procedure for base stations [2], which is in conformity with the FCC
OET Bulletin 65 [3] and IEC 62232:2022 [4].

It should be noted that the test results presented in this test report are valid for the frequency range specified
in Table 1, for the antenna properties specified in Table 2, and for the power level and the power tolerance
specified in Table 3. These data as well as the applied antenna pattern files were supplied by the client and
may affect the validity of the results.
Proposed EMF health and safety information for inclusion in the Customer Product Information (CPI) is
provided in Appendices A, B and C.

2 Equipment under test

Table 1 and Table 2 below summarize the technical data for the equipment under test (EUT) and the properties
of the integrated antenna. Table 3 lists the maximum nominal output power from the radio unit and the total
time-averaged power delivered to the antenna. The total time-averaged power delivered to the antenna
includes the output power tolerance.
The EUT related data in Tables 1-3 were supplied by the client.
Maximum nominal total output power from the radio is 320 W, out of which maximum 240 W (75% of the total
power) can be allocated to one band and the rest to the other band. Therefore, EMF compliance tests have
been conducted for three power combinations – the total output power from the radio divided as 1) 25% for
B25 and 75% B66, 2) 50% for B25 and 50% B66, and 3) 75% for B25 and 25% B66.
The product supports LTE, NR and LTE+NR mixed mode. This report is applicable for NR and LTE+NR mixed
mode. The report applicable for LTE is available in [8].
Table 1 Technical data for the EUT.

Product name and product number AIR 3283 B25 B66 KRD 901 892/11, KRD 901 892/1

Supported bands, Tx frequency range B25 1930 - 1995 NR

(MHz), and standards B66 2110 - 2200 NR

Antenna KRE 105 469

Dimensions, H × W × D (mm) 1200 × 508 × 317

Duplexing technology FDD

Exposure environment General public/uncontrolled, Occupational/controlled

IEC 62232 installation class2 E+

2
The stated IEC 62232 installation class was determined based on the total EIRP without power tolerance included. The total EIRP was obtained using the
antenna patterns provided by the client.
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Table 2 Properties of the antenna.

Product number KRE 105 469

Type Internal AAS

Number of polarizations 2

22.9 (B25)
Gain3 (dBi)
23.7 (B66)
Antenna configuration (no. of subarray rows,
2×8×2
subarray columns and polarizations)

Subarray configuration 6×1

2-12 (Macro)
Electrical downtilt (degrees)
7 (Hotspot)

Antenna pattern files 1/15570-KRD901892

Maximum scan range in horizontal plane (degrees) ± 60

Maximum scan range in vertical plane (degrees) 92 – 102

Table 3 EUT configurations with the maximum nominal output power level and the total time-averaged power level including
the output power tolerance.

Total time-averaged power

Maximum nominal output Power
Band Standard delivered to antenna
power from the radio tolerance (dB)
(dBm/W)
B25 +
NR 55.1 dBm / 320 W 1 dB 56.1 dBm / 402.9 W
B66

3 Exposure conditions
The EUT is intended to be used outdoor and installed on poles, walls, masts, towers, and similar structures
making it possible to ensure that the general public has no access to the EMF compliance boundary. Other
installation related exposure conditions are not reasonably foreseeable for the EUT.
Factors such as beam scanning in elevation and azimuth, RBS utilization, and scheduling time are reasonably
foreseeable and will significantly reduce the time-averaged power and the RF exposure. A theoretical
maximum exposure condition assessment was conducted, in which these factors were not considered, which
makes the obtained compliance boundaries very conservative.

4 EMF compliance boundary calculations

The RF exposure was evaluated using calculations performed according to the Ericsson RF Exposure
Calculation Procedure for Base Stations [2], which conforms to FCC OET Bulletin 65 [3] and IEC 62232 [4].
The calculations were made using the Ericsson in-house MATLAB-based tool called MSI compliance analyzer
(release 2022-02) [5]. The first step in calculating the compliance boundary was to use the spherical far-field
formula to estimate power density:

3
The stated gain value is the maximum gain of the antenna within the frequency band(s) supported by the product and obtained using the antenna patterns
provided by the client. The patterns used are based on theoretical modelling of the antenna and may differ slightly from the measured ones.
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where 𝑆,𝑃a , 𝐺, 𝑟, 𝜃, and 𝜙 denote the power density, the total time-averaged power accepted by the antenna,
the antenna gain, the distance from the antenna, and the angular variables in a spherical coordinate system,
respectively. The total time-averaged power delivered to the antenna includes the output power tolerance.

The AIR 3283 B25 B66 DL beams can be configured to handle two sector shapes. The Macro sector shape
can have different electrical downtilt angles ranging from 2 degree to 12 degrees, and the Hotspot sector shape
can have an electrical downtilt angle of 7 degrees. In the report, the compliance boundary dimensions of the
Macro sector shape are provided for three tilt conditions: minimum, mid, and maximum.

The envelope of antenna gains for all possible traffic beams as wells as antenna gain patterns for broadcast
beams were provided by the client based on theoretical modelling of the antenna. Only the traffic beam
envelope was used in the calculation of the compliance boundary as the contribution from the broadcast beams
is negligible for NR and thus the overestimation of the RF exposure by applying the total power to the higher
gain traffic beams is insignificant. The use of these antenna gain patterns, together with the applied tolerance,
provides an upper bound for the compliance boundary. Such envelope patterns were provided for six
frequencies, specifically 1930 MHz, 1962 MHz, and 1995MHz (B25), and 2110 MHz, 2155 MHz, and 2200MHz
(B66). Maximum gain values, corresponding to the maximum of all the envelope patterns, were used in the
above equation to estimate power density. The maximum gain values of the envelope of all possible traffic
beams with different electrical downtilt angles are given in Table 4.
Table 4 Maximum gain values for envelope traffic beams as provided by the client within Band 25 and Band 66.

Electrical Downtilt
Band 𝑮𝐭𝐫𝐚𝐟𝐟𝐢𝐜,𝐦𝐚𝐱 (dBi)
(deg)

2 22.7

B25 7 22.9

12 22.6

2 23.3

B66 7 23.7

12 23.3

The compliance distance for the spherical model, 𝐶𝐷sph (𝜃, 𝜙) was obtained by solving the following equation
for 𝑟:

lim
Where 𝑆gp,o denotes the FCC power density limits for general public and occupational exposure and Bandj ∈
{B25 and B66}. The limits for the frequency bands of interest are given in Table 5.

Table 5 RF EMF exposure limits on power density for the frequency band used by the EUT.

Band 𝑺𝐥𝐢𝐦 2
𝐠𝐩 (W/m ) 𝐒𝐨𝐥𝐢𝐦 (W/m2)

B25 10.0 50.0

B66 10.0 50.0

Based on the calculated compliance distances, a box-shaped compliance boundary was determined. To
comply with the FCC requirement of a minimum test separation distance for a non-portable device of 20 cm,
the minimum distance from the antenna to the compliance boundary was set to 20 cm.

5 Results
A box-shaped compliance boundary is used, characterized by its width, height, and the compliance distances
behind and in front of the EUT, see Figure 1. Outside of this box, the RF exposure is below the exposure limits.
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Figure 1 Box-shaped structure specifying the compliance boundary for the tested RBS product.

When applied in the near field, for instance behind the antenna, the spherical far-field formula provides very
conservative results. Given the relatively large distance from the antenna array elements to the back of the
antenna, and based on extensive experience from a large set of numerical EMF tests for products and
antennas with similar geometrical configurations and power levels, it is possible to state that the compliance
distance behind the antenna measured from its back plane is 20 cm. From measurements of a typical mid-
band AAS radio with nominal total output power of 320 W and configured with TDD DL duty cycle of 75%, the
maximum power density at 20 cm distance behind the radio was found to be 4.2 W/m2 [6]. For a nominal total
output power of 320 W, a power tolerance of 1 dB and FDD configuration as considered in this test, the power
density value scales to 7.1 W/m2 which is below the general public and occupational limits listed in Table 5.

In Figure 2 through Figure 4, compliance distance results for general public exposure (blue line) and
occupational exposure (red line) are given for the tested configurations leading to the largest compliance
boundary for theoretical maximum exposure condition. Also shown are the resulting compliance boundaries
(black lines, solid for general public, dashed for occupational exposure). The resulting compliance boundary
dimensions are given in Table 5 rounded upwards to the nearest decimeter.

Figure 2 Compliance boundaries for general public exposure (black solid line) and occupational exposure (black dashed line)
for the markets where the FCC limits apply. The blue solid lines correspond to compliance distance results for general public
exposure obtained using the spherical models. The red solid lines indicate the corresponding compliance distance results for
occupational exposure. The EUT is shown from above (left) and from the side (right) with its backplane located at 𝒙 = 𝟎 m. Mode:
B25 (NR) + B66 (NR). Total time-averaged power delivered to the antenna: 56.1 dBm / 402.9 W (25% for B25, 75% for B66).
Electrical tilt: 2 degrees. Sector shape: Macro.
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Figure 3 Compliance boundaries for general public exposure (black solid line) and occupational exposure (black dashed line)
for the markets where the FCC limits apply. The blue solid lines correspond to compliance distance results for general public
exposure obtained using the spherical models. The red solid lines indicate the corresponding compliance distance results for
occupational exposure. The EUT is shown from above (left) and from the side (right) with its backplane located at 𝒙 = 𝟎 m. Mode:
B25 (NR) + B66 (NR). Total time-averaged power delivered to the antenna: 56.1 dBm / 402.9 W (25% for B25, 75% for B66).
Electrical tilt: 7 degrees. Sector shape: Macro and Hotspot.

Figure 4 Compliance boundaries for general public exposure (black solid line) and occupational exposure (black dashed line)
for the markets where the FCC limits apply. The blue solid lines correspond to compliance distance results for general public
exposure obtained using the spherical models. The red solid lines indicate the corresponding compliance distance results for
occupational exposure. The EUT is shown from above (left) and from the side (right) with its backplane located at 𝒙 = 𝟎 m. Mode:
B25 (NR) + B66 (NR). Total time-averaged power delivered to the antenna: 56.1 dBm / 402.9 W (25% for B25, 75% for B66).
Electrical tilt: 12 degrees. Sector shape: Macro.
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Table 5 Dimensions of the box-shaped compliance boundary for general public (GP) and occupational (O) exposure for AIR
3283 B25 B66 applicable in the USA and markets employing the FCC RF exposure limits. The compliance boundaries are
determined for maximum nominal output power with power tolerance included.

Mode and output power for AIR 3283

Band Standard IEC 62232 installation class Power tolerance

B25 + B66 NR E+ 1 dB

Maximum Dimensions of the box-shaped compliance boundary (m)

nominal
Exposure Electrical Distance in Distance
output power Sector shape Width Height
condition tilt (deg) front of EUT behind EUT
from the
radio GP O GP O GP O GP O

Macro 2 25.8 11.5 32.2 14.4 8.3 3.7 0.2 0.2

80 W (B25) + Theoretical
Macro,Hotspot 7 26.8 12.0 32.9 14.7 8.8 4.0 0.2 0.2
240 W (B66) maximum
Macro 12 25.3 11.4 31.6 14.2 11.4 5.1 0.2 0.2

Macro 2 25.3 11.3 31.8 14.3 8.2 3.7 0.2 0.2

160 W (B25)
Theoretical
+ 160 W Macro,Hotspot 7 26.2 11.7 32.3 14.5 8.7 3.9 0.2 0.2
maximum
(B66)
Macro 12 24.8 11.1 31.3 14.0 11.2 5.1 0.2 0.2

Macro 2 24.8 11.1 31.5 14.1 8.2 3.7 0.2 0.2

240 W (B25) Theoretical
Macro,Hotspot 7 25.6 11.5 31.8 14.3 8.6 3.9 0.2 0.2
+ 80 W (B66) maximum
Macro 12 24.2 10.9 31.0 13.9 11.1 5.0 0.2 0.2

For the power levels specified in the table with tolerances added, and the upward rounding of compliance boundary dimensions to
the nearest decimeter, the specified results are conservative.

6 Uncertainty
For the input parameters defined in the test report, the calculated compliance boundary dimensions determined
according to the approach described in Section 4 results in an exposure assessment which is conservative.
The compliance boundary dimensions were determined by comparing the evaluated RF exposure directly with
the limits.

7 Conclusion
The Ericsson AIR 3283 B25 B66 has been tested using methods and procedures specified in FCC OET Bulletin
65 [3] and IEC 62232:2022 [4]. The results in Section 5 show the compliance boundary dimensions of the
product to be included in the Customer Product Information (CPI). Outside of these compliance boundaries,
the RF exposure is below the limits specified in [1].

8 References
[1] FCC, Code of Federal Regulations CFR title 47, part 1.1310 "Radiofrequency radiation exposure limits",
Federal Communications Commission (FCC), April 2020.
[2] Ericsson, GFTE-16:001718 Uen, "Ericsson RF exposure calculation procedure for base stations".
[3] FCC, "Evaluating compliance with FCC guidelines for human exposure to radiofrequency
electromagnetic fields. OET Bulletin 65. Edition 97-01." Federal Communications Commission (FCC),
Office of Engineering and Technology, August 1997.
[4] IEC 62232 Edition 3.0, “Determination of RF field strength, power density and SAR in the vicinity of base
stations for the purpose of evaluating human exposure”, October 2022.
[5] Ericsson, GFTL-19:000424 Uen, "User manual of MSI compliance analyzer".
[6] Ericsson GFTL-23:001011 Uen, " Measurements of EMF exposure levels behind an Ericsson mid-band
AAS radio".
[7] Ericsson, LME-12:001904 Uen, "Exposure to radio frequency electromagnetic fields".
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[8] Ericsson, GFTL-23:001737 Uen, “EMF Test Report: Ericsson AIR 3283 B25 B66 LTE (FCC)”.

9 Revision history

Rev. Date Description

A 2023-12-19 First revision.

B 2024-03-20 Product number KRD 901 892/11 added.

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Appendix A. Information to be included in the CPI

Table A.1 below lists the compliance boundaries (exclusion zones), outside of which the RF EMF exposure
from AIR 3283 is below the limits specified by the FCC, and the limits applicable in:

- USA (47 CFR 1.1310)

Information is provided for the theoretical maximum.

Table A.1 Dimensions of the box-shaped compliance boundary for general public (GP) and occupational (O) exposure applicable
in the USA and markets employing the FCC RF exposure limits.

Mode and output power for AIR 3283

Band Standard IEC 62232 installation class Power tolerance

B25 + B66 NR E+ 1 dB

Maximum Dimensions of the box-shaped compliance boundary (m)

nominal
Exposure Electrical Distance in Distance
output power Sector shape Width Height
condition tilt (deg) front of EUT behind EUT
from the
radio GP O GP O GP O GP O

Macro 2 25.8 11.5 32.2 14.4 8.3 3.7 0.2 0.2

80 W (B25) + Theoretical
Macro,Hotspot 7 26.8 12.0 32.9 14.7 8.8 4.0 0.2 0.2
240 W (B66) maximum
Macro 12 25.3 11.4 31.6 14.2 11.4 5.1 0.2 0.2

Macro 2 25.3 11.3 31.8 14.3 8.2 3.7 0.2 0.2

160 W (B25)
Theoretical
+ 160 W Macro,Hotspot 7 26.2 11.7 32.3 14.5 8.7 3.9 0.2 0.2
maximum
(B66)
Macro 12 24.8 11.1 31.3 14.0 11.2 5.1 0.2 0.2

Macro 2 24.8 11.1 31.5 14.1 8.2 3.7 0.2 0.2

240 W (B25) Theoretical
Macro,Hotspot 7 25.6 11.5 31.8 14.3 8.6 3.9 0.2 0.2
+ 80 W (B66) maximum
Macro 12 24.2 10.9 31.0 13.9 11.1 5.0 0.2 0.2

(1) The compliance boundaries are determined for maximum output power with power tolerance included, and for theoretical maximum
and actual maximum exposure conditions.
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Appendix B. Guidelines on how to install the product

The AIR 3283 B25 B66 product (KRD 901 892/11, KRD 901 892/1) shall be installed to make sure that the
general public does not have access to the applicable RF EMF compliance boundary. The compliance
boundary dimensions were determined for the product transmitting in free space.
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Appendix C. Guidelines for workers during installation, maintenance,

and repair of the product
For the AIR 3283 B25 B66 product (KRD 901 892/11, KRD 901 892/1), if work needs to be performed within
the compliance boundary applicable for workers, the radio equipment shall be powered off, or the power be
reduced to a level ensuring that the RF EMF exposure is below the relevant exposure limit for workers.

If work is conducted on behalf of Ericsson, minimum EMF related requirements are provided in [7].
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Appendix D. Photograph/Sketch of the EUT