RF Exposure

FCC ID: WP5TWN4F9

RF Exposure Info

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FCCID_4479246

                                                        Customer:
                                                       Elatec GmbH

                                                    Zeppelinstraße 1
                                                    82178 Puchheim
                                                         Germany
                                                 Tel.: +49 89 5529961-0
                                                Fax: +49 89 5529961-129




                                            EMC test report
                                                    190222-AU01+W04




                                                       Elatec GmbH
                                                    RFID Reader / Writer
                                                        TWN4 Slim




All test results apply to the tested sample only.
   Multiplication and publication is prohibited
   unless written consent has been provided
 beforehand by the EMV TESTHAUS GmbH


              EMV TESTHAUS GmbH
                             Gustav-Hertz-Straße 35
                                  94315 Straubing
                             Tel.: +49 9421 56868-0
                            Fax: +49 9421 56868-100
                          Email: info@emv-testhaus.com




                                      Accreditation:




                    FCC test firm accreditation expiration date: 2021-05-30
                      MRA US-EU, FCC designation number: DE0010
                       BnetzA-CAB-02/21-02/5 Valid until 2023-11-26
                            Recognized on March 14th, 2019 by the
         Department of Innovation, Science and Economic Development (ISED) Canada
                                as a wireless testing laboratory
                                    CAB identifier: DE0011




                                 Location of Testing:


                              EMV TESTHAUS GmbH
                              Gustav-Hertz-Straße 35
                                 94315 Straubing




The technical accuracy is guaranteed through the quality management of the
                         EMV TESTHAUS GmbH.




                                                                                Elatec GmbH
                 EMV TESTHAUS GmbH
                                                                              RFID Reader Writer
                 Gustav-Hertz-Straße 35                                          TWN4 Slim
                    94315 Straubing
                       Germany
                                                            190222-AU01+W04                   Page 2 of 18


                                                       Table of contents

1     Test regulations ........................................................................................................................ 4
2     Summary of test results ............................................................................................................ 5
3     Equipment under test (EUT) ..................................................................................................... 6
4     Photographs of EUT ................................................................................................................. 6
5     Test results ............................................................................................................................... 7
    5.1     FCC ................................................................................................................................... 8
    5.2     Canada ............................................................................................................................ 11
6     Revision history ...................................................................................................................... 18




                                                            List of tables

Table 1: Limits for maximum permissible exposure (MPE) according to table 1 of §1.1310(e) ........9
Table 2: Result of MPE..................................................................................................................10
Table 3: Electric field strength reference levels (see table 3 of Safety Code 6)..............................12
Table 4: Magnetic field strength reference levels (see table 4 of Safety Code 6) ...........................12
Table 5: Result of electric field strength .........................................................................................13
Table 6: Result of magnetic field strength ......................................................................................13
Table 7: Result of exemption for routine evaluation .......................................................................15
Table 8: Result of exemption for routine evaluation .......................................................................15




                                                                                                            Elatec GmbH
                                        EMV TESTHAUS GmbH
                                                                                                         RFID Reader Writer
                                        Gustav-Hertz-Straße 35                                              TWN4 Slim
                                           94315 Straubing
                                              Germany
                                                                                       190222-AU01+W04                          Page 3 of 18


1            Test regulations

Standard                                             Title
RSS-102                                              Spectrum Management and Telecommunications
Issue 5                                              Radio Standards Specification
March 2015                                           Radio Frequency (RF) Exposure Compliance of Radio
                                                     communication Apparatus (All Frequency Bands)
SPR-002                                              Spectrum Management and Telecommunications
Issue 1                                              Supplementary Procedure
September 2016                                       Supplementary Procedure for Assessing Compliance
                                                     with RSS-102 Nerve Stimulation Exposure Limits
Safety Code 6 (2015)                                 Limits of Human Exposure to Radiofrequency
                                                     Electromagnetic Energy in the Frequency Range from
                                                     3 kHz to 300 GHz
IEEE C95.3-2002 (R2008)                              IEEE Recommended Practice for Measurements and
Approved December 11, 2002                           Computations of Radio Frequency Electromagnetic
Reaffirmed June 12, 2008                             Fields With Respect to Human Exposure to Such
                                                     Fields, 100 kHz–300 GHz
OET Bulletin 65, 65A, 65B Edition 97-01, August       Evaluating Compliance with FCC Guidelines for
1997                                                  Human Exposure to Radio Frequency
                                                      Electromagnetic Fields
Part 1, Subpart I, Section 1.1310                     Radiofrequency radiation exposure limits
Part 1, Subpart 2, Section 2.1091                    Radiofrequency radiation exposure evaluation:
                                                     mobile devices.
Part 1, Subpart 2, Section 2.1093                    Radiofrequency radiation exposure evaluation:
                                                     portable device
KDB 447498 D01 v06                                   Mobile and portable devices RF Exposure
                                                     procedures and equipment authorisation
                                                     policies, October 23, 2015.

KDB 865664 D01                                       SAR Measurement Requirements for 100 MHz
                                                     to 6 GHz,
                                                     August 7, 2015.

ANSI C95.1: 2005                                     IEEE Standard for Safety Levels with respect to
                                                     Human Exposure to Radio Frequency
                                                     Electromagnetic Fields, 3 kHz to 300 GHz




                                                                            Elatec GmbH
                            EMV TESTHAUS GmbH
                                                                          RFID Reader Writer
                            Gustav-Hertz-Straße 35                           TWN4 Slim
                               94315 Straubing
                                  Germany
                                                              190222-AU01+W04             Page 4 of 18


2              Summary of test results
FCC

Standard and      Test                                          Page       Result               Note
clause
Part 1, Subpart   Evaluation for separation distance > 20 cm,    8         Passed                1
2, Section        except WPT
2.1091
Part 1, Subpart   Multiple transmitters capable of                      Not applicable           1
2, Section        simultaneous transmission
2.1091
Note 1: Frequency 1(125 kHz) and frequency 2 (13.56 MHz) are categorically excluded from routine
environmental evaluation for RF exposure.



Canada

Standard and      Test                                          Page       Result               Note
clause
RSS-102 Issue     For transmitters operating between 3 kHz       11        Passed
5, clause 4       and 10 MHz
RSS-102 Issue     Evaluation for separation distance > 20 cm,    14        Passed
5, clause 2.5.2   except 3 kHz – 10 MHz
RSS-102 Issue     Multiple transmitters capable of               16        Passed
5, clause 2.5.2   simultaneous transmission




Straubing, October 14, 2019




             Konrad Graßl                                                Christian Kiermeier
        Head of radio department                                         Technical executive
        EMV TESTHAUS GmbH                                              EMV TESTHAUS GmbH




                                                                             Elatec GmbH
                              EMV TESTHAUS GmbH
                                                                           RFID Reader Writer
                              Gustav-Hertz-Straße 35                          TWN4 Slim
                                 94315 Straubing
                                    Germany
                                                                190222-AU01+W04            Page 5 of 18


3           Equipment under test (EUT)

Product type:                             RFID Reader / Writer
Model Name:                               TWN4 Slim
HVIN:                                     EL1901
Manufacturer:                             Elatec GmbH
Serial number:                            2019103472
Short description:                        The EUT is a RFID Reader operating on the frequencies
                                          125 kHz and 13.56 MHz with a certified BLE module.
FCC ID:                                   WP5TWN4F9
IC certification number:                  7948A-TWN4F9
FCC-ID of BLE-module:                     QOQ11
IC registration number of BLE-module:     5123A-11
Operating frequencies:                    Frequency 1: 125 kHz
                                          Frequency 2: 13.56 MHz
                                          Frequency 3: 2402 – 2480 MHz (BLE)
Multiple transmissions:                   Yes
Antenna types:                            PCB antenna
                                          ☐ detachable           ☒ not detachable
Power supply:                             DC supply
                                          nominal voltage: 5.0 V
Type of device:                           ☐ Body-supported device
                                          ☐     Body-worn (or body-mount) radio
                                          ☐     Limb-Worn device
                                          ☒     other
Separation distance:                      ☐     ≤ 20 cm
                                          ☒     > 20 cm
Evaluated against exposure limits:        ☒     General public use
                                          ☐     Controlled use




4           Photographs of EUT

See 190222-AU01+W01 Annex B 125 kHz and 190222-AU01+W03 Annex B 13.56 MHz.




                                                                        Elatec GmbH
                           EMV TESTHAUS GmbH
                                                                      RFID Reader Writer
                           Gustav-Hertz-Straße 35                        TWN4 Slim
                              94315 Straubing
                                 Germany
                                                           190222-AU01+W04            Page 6 of 18


5            Test results

This clause gives details about the test results as collected on page 5.

The climatic conditions are recorded during the tests. It is ensured that the climatic conditions are
within the following ranges:

 Ambient temperature                 Ambient humidity                      Ambient pressure
 15°C to 35°C                        30 % to 75 %                          86 kPa to 106 kPa




                                                                             Elatec GmbH
                            EMV TESTHAUS GmbH
                                                                           RFID Reader Writer
                            Gustav-Hertz-Straße 35                            TWN4 Slim
                               94315 Straubing
                                  Germany
                                                             190222-AU01+W04               Page 7 of 18


5.1          FCC

5.1.1        Evaluation for separation distance > 20 cm, except WPT

Reference:               Part 1, Subpart 2, Section 2.1091
Basic standard:          n/a


Performed by:            Konrad Graßl                   Date of test:          September 24, 2019

Result:                  ☒ Limits kept                  ☐ Limits not kept




5.1.1.1      Data of equipment under test (EUT)
Note: The data for the Frequency 3 is taken out of the Test report 285803-1 of the test laboratory
SGS.


Frequency 3:
Antenna connector:                        none
Antenna detachable:                       No
Maximum peak conducted output             8.32 dBm at 2402 MHz
power:
Antenna Gain:                             2.14 dBi
Tune-up tolerance:                        ± 1 dB
Applicable duty cycle:                    As worst case not applied
Separation distance:                      20 cm




                                                                              Elatec GmbH
                               EMV TESTHAUS GmbH
                                                                            RFID Reader Writer
                               Gustav-Hertz-Straße 35                          TWN4 Slim
                                  94315 Straubing
                                     Germany
                                                                 190222-AU01+W04            Page 8 of 18


5.1.1.2      Requirements and limits for separation distance > 20 cm
This estimation follows the general guidelines for RF Exposure according to KDB 447498.

As noted in §2.1091(b) a mobile device is defined as “a transmitting device designed to be used in
other than fixed locations and to generally be used in such a way that a separation distance of at
least 20 centimeters is normally maintained between the transmitter's radiating structure(s) and
the body of the user or nearby persons.”
According to §2.1091(c) the limits to be used for evaluation are defined in §1.1310.

As specified in §1.1310(d)(2) at operating frequencies less than or equal to 6 GHz, the limits for
maximum permissible exposure (MPE), derived from whole-body SAR limits and listed in Table 1
of §1.1310(e) may be used.

  Frequency range       Electric field       Magnetic field      Power density        Averaging time
                           strength            strength
                                                                           2
       (MHz)                 (V/m)               (A/m)             (mW/cm )              (minutes)
                           (A) Limits for Occupational/Controlled Exposure
0.3 - 3.0                              614                1.63                *100                       6
3.0 - 30                            1842/f              4.89/f            *900/f2                        6
30 - 300                              61.4              0.163                  1.0                       6
300 - 1500                                                                   f/300                       6
1500 - 100000                                                                    5                       6
                      (B) Limits for General Population/Uncontrolled Exposure
0.3 - 1.34                             614                1.63                *100                      30
                                                                                  2
1.34 - 30                            824/f              2.19/f             *180/f                       30
30 - 300                              27.5              0.073                  0.2                      30
300 - 1500                                                                 f/1500                       30
1500 - 100000                                                                  1.0                      30

   Table 1: Limits for maximum permissible exposure (MPE) according to table 1 of §1.1310(e)

Notes:
1. f = frequency in MHz.
2. * = Plane-wave equivalent power density.




                                                                           Elatec GmbH
                           EMV TESTHAUS GmbH
                                                                         RFID Reader Writer
                           Gustav-Hertz-Straße 35                           TWN4 Slim
                              94315 Straubing
                                 Germany
                                                            190222-AU01+W04              Page 9 of 18


5.1.1.3       Results
Frequency 3

     Channel                   EIRP             Power        Limit     Fraction           Result
    Frequency           + tuneup tolerance     density      Power       of limit
      (MHz)                   (dBm)           (mW/cm2)     density       (%)
                                                          (mW/cm2)
       2402                   11.46             0.0028         1           0.28           Passed

                                      Table 2: Result of MPE




                                                                       Elatec GmbH
                           EMV TESTHAUS GmbH
                                                                     RFID Reader Writer
                           Gustav-Hertz-Straße 35                       TWN4 Slim
                              94315 Straubing
                                 Germany
                                                         190222-AU01+W04             Page 10 of 18


5.2          Canada

5.2.1        Frequency range 3 kHz up to 10 MHz

Reference:             RSS-102, clause 4
Basic standard:        n/a


Performed by:          Jennifer Riedel                Date of test:          August 23, 2019

Result:                ☒ Limits kept                  ☐ Limits not kept




5.2.1.1      Data of equipment under test (EUT)
Note: The data for the Frequency 1 is taken out of the Test report 190222-AU01+W01 of the test
laboratory EMV Testhaus GmbH


Frequency 1:
Antenna connector:                      none
Antenna detachable:                     No
Maximum field strength:                 55.67 dBµV/m at 3 m
Operation frequency:                    125 kHz
Tune-up tolerance:                      ± 1 dB




                                                                            Elatec GmbH
                             EMV TESTHAUS GmbH
                                                                          RFID Reader Writer
                             Gustav-Hertz-Straße 35                          TWN4 Slim
                                94315 Straubing
                                   Germany
                                                               190222-AU01+W04            Page 11 of 18


5.2.1.2        Limits
According to section 2.5.1 of RSS-102, transmitters operating between 3 kHz and 10 MHz,
meeting the exemption from routine SAR evaluation, shall demonstrate compliance to the
instantaneous limits in section 4 of RSS-102. Therefore, these limits apply irrespective of the
separation distance between the user or bystanders and the device.

The exposure limits in section 4 of RSS-102 are adopted from Health Canada’s Safety Code 6.
According to section 2.1 of Safety Code 6, limits for internal electric field strength are intended to
prevent the occurrence of nerve stimulation (NS). At frequencies between 3 kHz and 10 MHz,
basic restrictions for internal electric field strength in excitable tissues as shown in table 1 of Safety
Code 6 (i.e. table 2 of RSS-102) shall not be exceeded. For conditions where the determination of
internal electric field strength is not possible or practical (e.g. by measurement or modelling),
external unperturbed field strength assessment shall be carried out and the reference levels
outlined in section 2.2 of Safety Code 6 shall be respected.

For transmitters operating between 3 kHz and 10 MHz, the requirements of table 4 and table 6 in
section 4 of RSS-102 can be found in table 3 and table 4 of Safety Code 6, section 2.2:

                                      Electric Field Strength Reference Levels
                                                   Reference Level (ERL), (V/m, RMS)
 Frequency Range         Reference Level           Uncontrolled           Controlled           Reference Period
      (MHz)                   Basis                Environment           Environment              (minutes)
     0.003 – 10                NS                       83                       170             Instantaneous*
                                                              0.5
     1.1 – 1.29                SAR                   87 / ƒ                      ---                     6**
                                                              0.5                      0.5
        1.29 – 10              SAR                   87 / ƒ                193 / ƒ                       6**
Note:      Frequency, ƒ, is in MHz.

             Table 3: Electric field strength reference levels (see table 3 of Safety Code 6)



                                  Magnetic Field Strength Reference Levels
                                                   Reference Level (HRL), (A/m, RMS)
 Frequency Range         Reference Level           Uncontrolled           Controlled           Reference Period
      (MHz)                   Basis                Environment           Environment              (minutes)
     0.003 – 10                NS                       90                       180             Instantaneous*
        0.1 – 10               SAR                    0.73 / ƒ              1.6 / ƒ                      6**
Note:      Frequency, ƒ, is in MHz.

            Table 4: Magnetic field strength reference levels (see table 4 of Safety Code 6)




                                                                                       Elatec GmbH
                              EMV TESTHAUS GmbH
                                                                                   RFID Reader Writer
                              Gustav-Hertz-Straße 35                                  TWN4 Slim
                                 94315 Straubing
                                    Germany
                                                                    190222-AU01+W04                  Page 12 of 18


5.2.1.3      Test configuration
The RF exposure test is performed by the direct measurement method using a Broadband probe
as described in clause 6.6.1.1 of the supplementary procedure SPR-002.

To find the worst case emissions, the field probe is moved over all sides of the EUT at the
separation distance as noted in Table 5 and Table 6 while observing the display of the field meter.
At the worst case position, the final value is measured and recorded.

According to section 3.2 of RSS-102, RF exposure evaluation of devices shall be made in
accordance with the latest version of IEEE C95.3. Definition 3.95 in clause 3 of IEEE C95.3
specifies the separation distance applied to the measurement of electric and magnetic fields as the
“distance between a source and the nearest point on the probe sensing elements”.




5.2.1.4      Test results
       Channel              Measured electric           Limit         Fraction of               Result
      Frequency                field strength           (V/m)            limit
        (MHz)                (V/m) at 20 cm +                             (%)
                            tune-up tolerance
          0.125                     1.29                 83                1.56             Passed

                              Table 5: Result of electric field strength

       Channel             Measured magnetic            Limit         Fraction of               Result
      Frequency                field strength           (A/m)            limit
        (MHz)                (A/m) at 20 cm +                             (%)
                            tune-up tolerance
          0.125                     1.01                 90                1.12             Passed

                             Table 6: Result of magnetic field strength




                                                                             Elatec GmbH
                           EMV TESTHAUS GmbH
                                                                           RFID Reader Writer
                           Gustav-Hertz-Straße 35                             TWN4 Slim
                              94315 Straubing
                                 Germany
                                                              190222-AU01+W04              Page 13 of 18


5.2.2        Evaluation for separation distance > 20 cm,
                    except 3 kHz – 10 MHz

Reference:               RSS 102 clause 2.5.2
Basic standard:          n/a


Performed by:            Jennifer Riedel                Date of test:          August 23, 2019

Result:                  ☒ Limits kept                  ☐ Limits not kept




5.2.2.1      Data of equipment under test (EUT)
Note: The data for the Frequency 2 is taken out of the Test report 190222-AU01+W03 of the test
laboratory EMV Testhaus GmbH


Frequency 2:
Antenna connector:                        none
Antenna detachable:                       No
Maximum field strength                    67.95 dBµV/m at 3 m
Operation frequency:                      13.56 MHz
Tune-up tolerance:                        ± 1 dB
Applicable duty cycle:                    As worst case not applied


Note: The data for the Frequency 3 is taken out of the Test report 285803-1 of the test laboratory
SGS.


Frequency 3:
Antenna connector:                        none
Antenna detachable:                       No
Maximum peak conducted output             8.32 dBm at 2402 MHz
power:
Antenna Gain:                             2.14 dBi
Tune-up tolerance:                        ± 1 dB
Applicable duty cycle:                    As worst case not applied



                                                                              Elatec GmbH
                               EMV TESTHAUS GmbH
                                                                            RFID Reader Writer
                               Gustav-Hertz-Straße 35                          TWN4 Slim
                                  94315 Straubing
                                     Germany
                                                                 190222-AU01+W04            Page 14 of 18


5.2.2.2       Exemption Limits for Routine Evaluation – RF Exposure
              Evaluation

According to RSS 102 Clause 2.5.2:
RF exposure evaluation is required if the separation distance between the user and/or bystander
and the device’s radiating element is greater than 20 cm, except when the device operates as
follows:
• below 20 MHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal to or
less than 1 W (adjusted for tune-up tolerance);
• at or above 20 MHz and below 48 MHz and the source-based, time-averaged maximum e.i.r.p. of
the device is equal to or less than 4.49/ƒ0.5 W (adjusted for tune-up tolerance), where ƒ is in MHz;
• at or above 48 MHz and below 300 MHz and the source-based, time-averaged maximum e.i.r.p.
of the device is equal to or less than 0.6 W (adjusted for tune-up tolerance);
• at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p. of
the device is equal to or less than 1.31 x 10-2 ƒ0.6834 W (adjusted for tune-up tolerance), where ƒ is
in MHz;
• at or above 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal
to or less than 5 W (adjusted for tune-up tolerance).

In these cases, the information contained in the RF exposure technical brief may be limited to
information that demonstrates how the e.i.r.p. was derived.




5.2.2.3       Results
Frequency 2

      Channel                  ERP                    P         Limit      Fraction           Result
     Frequency          + tuneup tolerance           (W)        (W)         of limit
       (MHz)                  (dBm)                                          (%)
       13.56                  -26.25            0.000002          1        0.0002             Passed

                         Table 7: Result of exemption for routine evaluation


Frequency 3

      Channel                  EIRP                   P         Limit      Fraction           Result
     Frequency          + tuneup tolerance           (W)        (W)         of limit
       (MHz)                  (dBm)                                          (%)
        2402                  11.46                  0.011       2.68        0.41             Passed
                         Table 8: Result of exemption for routine evaluation




                                                                           Elatec GmbH
                            EMV TESTHAUS GmbH
                                                                         RFID Reader Writer
                            Gustav-Hertz-Straße 35                          TWN4 Slim
                               94315 Straubing
                                  Germany
                                                             190222-AU01+W04             Page 15 of 18


5.2.3        Multiple transmitters capable of simultaneous transmission


Reference:              RSS 102
Basic standard:         n/a


Performed by:           Konrad Graßl                   Date of test:          October 14, 2019

Result:                 ☒ Limits kept                  ☐ Limits not kept




5.2.3.1      Requirements and limit
According to RSS 102 Clause 2.5.2:
RF exposure evaluation is required if the separation distance between the user and/or bystander
and the device’s radiating element is greater than 20 cm, except when the device operates as
follows:
• below 20 MHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal to or
less than 1 W (adjusted for tune-up tolerance);
• at or above 20 MHz and below 48 MHz and the source-based, time-averaged maximum e.i.r.p. of
the device is equal to or less than 4.49/ƒ0.5 W (adjusted for tune-up tolerance), where ƒ is in MHz;
• at or above 48 MHz and below 300 MHz and the source-based, time-averaged maximum e.i.r.p.
of the device is equal to or less than 0.6 W (adjusted for tune-up tolerance);
• at or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p. of
the device is equal to or less than 1.31 x 10-2 ƒ0.6834 W (adjusted for tune-up tolerance), where ƒ is
in MHz;
• at or above 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal
to or less than 5 W (adjusted for tune-up tolerance).

In these cases, the information contained in the RF exposure technical brief may be limited to
information that demonstrates how the e.i.r.p. was derived.




                                                                             Elatec GmbH
                              EMV TESTHAUS GmbH
                                                                           RFID Reader Writer
                              Gustav-Hertz-Straße 35                          TWN4 Slim
                                 94315 Straubing
                                    Germany
                                                                190222-AU01+W04            Page 16 of 18


5.2.3.2     Results
Frequency 1 and frequency 2 can not work simultaneously. Frequency 1 and frequency 3 or
frequency 2 and frequency 3 can work simultaneously. (see clause 5.2.1 and 5.2.2).

Worst case : Frequency 1 works simultaneously with frequency 3.


   Fraction of         Fraction of      Sum of fractions          Limit                  Result
limit frequency 1   limit frequency 3         (%)                  (%)
        (%)                 (%)
        1.56                0.41               1.97                100                  passed




                                                                          Elatec GmbH
                           EMV TESTHAUS GmbH
                                                                      RFID Reader Writer
                           Gustav-Hertz-Straße 35                        TWN4 Slim
                              94315 Straubing
                                 Germany
                                                           190222-AU01+W04              Page 17 of 18


6        Revision history


Revision Date           Issued by              Description of modifications
    0    2019-10-14     Konrad Graßl           First edition




                                                                 Elatec GmbH
                      EMV TESTHAUS GmbH
                                                               RFID Reader Writer
                      Gustav-Hertz-Straße 35                      TWN4 Slim
                         94315 Straubing
                            Germany
                                                 190222-AU01+W04               Page 18 of 18



Document Created: 2019-10-15 08:17:50
Document Modified: 2019-10-15 08:17:50

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