Test report

FCC ID: L2C0049TR

Test Report

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FCCID_1590383

                        University of Michigan Radiation Laboratory
                  FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614



                                     The University of Michigan
                                       Radiation Laboratory
                                        3228 EECS Building
                                     Ann Arbor, MI 48109-2122
                                        Tel: (734) 764-0500


                                Measured Radio Frequency Emissions
                                              From

                                    Delphi 76.7 GHz Radar
                                     FCC ID: L2C0049TR
                                      IC: 3432A-0049TR

                                       Report No. 417124-614
                                         October 29, 2011

                                          Copyright © 2011

                                                For:
                                     Delphi Automotive Systems
                                       One Corporate Center,
                                      Kokomo, IN 46904-9005

                                               Contact:
                                               Bill Lusa
                                       e-mail: bill@w-app.com
                                         Tel: 734-484-1387
                                         Fax: 734-484-1389



                                                 Tests supervised by:
Measurements made by:      Valdis V. Liepa       Report approved by: _____________________
                           Joseph D. Brunett                             Valdis V. Liepa
Test Report Prepared by:   Joseph D. Brunett                             Research Scientist


Summary

Testing for compliance with FCC Regulations Part 15, Subpart C, Section 253 and Industry Canada RSS-
210 was performed on Delphi 76.7 GHz Radar model L2C0049TR. This device is subject to the Rules
and Regulations as a Field Disturbance Device.
        In testing completed on October 10, 2011, we determined that the L2C0049TR meets FCC/IC
regulations for average power density at 3 meters by 18.4 dB in the worst case. Spurious emissions meet
out of band emissions regulations by more than 10.5 dB.



                                            Page 1 of 12


                         University of Michigan Radiation Laboratory
                   FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614

1. Introduction

This Delphi 76.7 GHz Radar was tested for compliance with FCC Regulations, Part 15, adopted under
Docket 87-389, April 18, 1989 as subsequently amended, and with Industry Canada RSS-210/Gen, Issue
8, December 2010. The tests were performed at the University of Michigan Radiation Laboratory
following the procedures described in the FCC MM-Wave Test Procedures. Test site description and
attenuation characteristics are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050)
and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057A-1).

2. Test Procedure and Equipment Used

The pertinent test equipment commonly used in our facility for measurements is listed in Table 2.1 below.
The middle column identifies the specific equipment used in these tests.

                                       Table 2.1 Test Equipment.
             Test Instrument                 Eqpt. Used                   Manufacturer/Model
Spectrum Analyzer (9kHz-22GHz)                               Hewlett-Packard 8593A SN: 3107A01358
Spectrum Analyzer (9kHz-26GHz)                               Hewlett-Packard 8593E, SN: 3412A01131
Spectrum Analyzer (9kHz-26GHz)                   X           Hewlett-Packard 8563E, SN: 3310A01174
Spectrum Analyzer (9kHz-40GHz)                   X           Hewlett-Packard 8564E, SN: 3745A01031
Power Meter                                                  Hewlett-Packard, 432A
Power Meter                                                  Anritsu, ML4803A/MP
Harmonic Mixer (26-40 GHz)                       X           Hewlett-Packard 11970A, SN: 3003A08327
Harmonic Mixer (40-60 GHz)                       X           Hewlett-Packard 11970U, SN: 2332A00500
Harmonic Mixer (50-90 GHz)                       X           Hewlett-Packard 11970V, SN: 2521A00179
Harmonic Mixer (75-110 GHz)                      X           Hewlett-Packard 11970W, SN: 2521A00179
Harmonic Mixer (140-220 GHz)                     X           Pacific Millimeter Prod., GMA, SN: 26
S-Band Std. Gain Horn                                        S/A, Model SGH-2.6
C-Band Std. Gain Horn                            X           University of Michigan, NRL design
XN-Band Std. Gain Horn                           X           University of Michigan, NRL design
X-Band Std. Gain Horn                            X           S/A, Model 12-8.2
X-band horn (8.2- 12.4 GHz)                                  Narda 640
X-band horn (8.2- 12.4 GHz)                                  Scientific Atlanta , 12-8.2, SN: 730
K-band horn (18-26.5 GHz)                                    FXR, Inc., K638KF
Ka-band horn (26.5-40 GHz)                       X           FXR, Inc., U638A
U-band horn (40-60 GHz)                          X           Custom Microwave, HO19
W-band horn(75-110 GHz)                          X           Custom Microwave, HO10
G-band horn (140-220 GHz)                        X           Custom Microwave, HO5R
Bicone Antenna (30-250 MHz)                                  University of Michigan, RLBC-1
Bicone Antenna (200-1000 MHz)                                University of Michigan, RLBC-2
Dipole Antenna Set (30-1000 MHz)                             University of Michigan, RLDP-1,-2,-3
Dipole Antenna Set (30-1000 MHz)                             EMCO 2131C, SN: 992
Active Rod Antenna (30 Hz-50 MHz)                            EMCO 3301B, SN: 3223
Active Loop Antenna (30 Hz-50 MHz)                           EMCO 6502, SN:2855
Ridge-horn Antenna (300-5000 MHz)                X           University of Michigan
Amplifier (5-1000 MHz)                                       Avantak, A11-1, A25-1S
Amplifier (5-4500 MHz)                           X           Avantak
Amplifier (4.5-13 GHz)                           X           Avantek, AFT-12665
Amplifier (6-16 GHz)                             X           Trek
Amplifier (16-26 GHz)                            X           Avantek
LISN Box                                                     University of Michigan
Signal Generator                                             Hewlett-Packard 8657B




                                             Page 2 of 12


                          University of Michigan Radiation Laboratory
                    FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614

3. Device Under Test

3.1 Identification
The Device Under Test (DUT) is a 76.7 GHz vehicular radar employing two chirp modulated transmit
chains, noted herein as Tx1 and Tx2 with 250 MHz chirp bandwidth. The DUT is 12 x 13 x 3.5 cm in
dimension.




                                  Figure 3.1 Test Configuration Block Diagram

3.2 Variants
There are two electrically identical variants of the radar in question, one for the left hand side of the
vehicle and one for the right hand side of the vehicle. No electrical or mechanical differences exist
between these two variants.

3.4 Samples
A laptop was provided to setup radar functionality over the CAN bus, directing the radar to operate in
both the normal modulated and CW modes. In CW mode the DUT transmits out of the higher-gain Tx1
chain as discussed below. The nominal operating voltage is 13.4 VDC; for testing this was supplied by a
laboratory power supply.

3.3 Modes of Operation
The DUT is capable of only one normal modulated mode of operation. When installed on a vehicle, the
device operates in this mode when the vehicle is both moving and at rest. The DUT transmits repeated
chirps on alternating Tx1 and Tx2 transmit chains. Each transmit chain employs a different antenna
radiation pattern. The Tx1 array emits a uniform broadside pattern (normal to the radome) with a
manufacturer declared gain of 14dBi, and the Tx2 chain array emits a split-beam end-fire pattern radiating
in the direction toward the end of the device with a manufacturer declared gain of 7 dBi. The Tx1 chain
transmission repeats with a period of 50 ms, and the Tx2 chain transmission repeats with a 100 ms period.
The EUT then receives the returning chirp on a receive array and resolves object locations via digital
beam forming.

3.5 EMI/EMC Relevant Modifications
There were no modifications made to the DUT by this laboratory.




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                           University of Michigan Radiation Laboratory
                     FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614


4. Emission Limits

4.1 Radiated Emission Limits
The DUT tested falls under the category of an Intentional Radiator, subject to FCC Part 15.253 and
Industry Canada RSS-210 / RSS-GEN. The applicable critical testing frequencies with corresponding
emission limits are given in Table 4.1. As a digital device this product is exempt because as it is
deployed for use only in a motor vehicle.

                     Table 4.1. Radiated Emission Limits (Ref: FCC: 15.253 / RSS-210)

                   Frequency (GHz)    Forward Looking       Side Looking      Not Moving
                    0.030 - 40000        per 15.209          per 15.209       per 15.209
                      76.0 - 77.0       60 µW/cm2            30 µW/cm2       200 nW/cm2
                      40.0 - 200.0      600 pW/cm2          300 pW/cm2        dependent
                     200.0 - 231.0     1000 pW/cm2          1000 pW/cm2      1000 pW/cm2

5. Test Procedures

5.1 Indoor Measurements
Prior to any measurements, all active components of the test setup were allowed a warm-up for a period
of approximately one hour, or as recommended by their manufacturers.
         For the tests, the unit was mounted at a 3 or 1 (or even 0.25 m) meter distance, depending on the
available signal strength, and rotated through 360 degrees to determine the most intense radiation lobe.
Care is taken such that there is no interference from the hand or body. Due to the rigid connection of the
receive antenna to the spectrum analyzer in many instances, the DUT is also rotated around its antenna
axes to match the polarization of the emission.

5.2 Field Calculation for Radiated Emission Measurements
When the measurement is made at a distance other than 3 m, but is called out at 3 m, the reading is
extrapolated to the 3 m distance. This is done using the 20 dB/decade field behavior relation when
translating in the far field, and 40 dB/decade relation when translating in the near field. The near-
field/far-field criterion, N/F, is based on
                                            N/F = 2 D2 / wavelength

where D is the maximum dimension of the transmitter or receiver antenna , and the wavelength is that of
the measurement frequency. Suppose N/F = 2 m and the measurement is made at 1 m. Here the 40 dB/
decade relation is applied from 1 to 2 m, and a 20 dB/decade relation is applied from 2 to 3 m. In dB, this
gives a 15.6 dB adjustment.
        To convert the dBm measured and extrapolated to 3 m, the E3(dBµV/m) is computed from

                              E3(dBµV/m) = 107 + Pr + CF + Ka - Kg + KE

Where     Pr   =   power recorded on spectrum analyzer, dBm (extrapolated to 3 m distance)
          CF   =   correction factor to compute peak power value from insufficient Rx bandwidth
          Ka   =   antenna factor, dB/m
          Kg   =   pre-amp gain, dB
          KE   =   pulse operation correction factor, dB (see 6.1)

For conversion to power densities specified in 15.253, we used

                                               Page 4 of 12


                         University of Michigan Radiation Laboratory
                   FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614


                        EIRP (dBm) = S (dBm/cm2) + 10 Log10(4 π R(cm)^2)
                        EIRP (dBm) = Pr (dBuV/m) – 95.2 dB
Thus, at a 3m distance:
        EIRP (dBm) = S (dBm/cm2) + 10 Log10(4 π (300)^2) + 95.2 dB = S (dBm/cm2) + 155.74 dB

and we note that                200 nW/cm2 = -37.0 dBm/cm2
                             1000 pW/cm2 = -60.0 dBm/cm2
                              300 pW/cm2 = -65.2 dBm/cm2

For microwave measurements, either the receive antenna is connected directly to the spectrum analyzer,
or it is connected to an external mixer followed by an insignificant length of cable. Hence, no cable loss
term is used. The mixer conversion losses are programmed in the spectrum analyzer and are included in
the dB values. However, for 125 GHz and up, an external mixer with an external LO and pre-amplifier
was used. The mixer conversion loss, IF amp gain and cable losses are included in mixer conversion
factor.

6. Test Results

6.1 Correction for Pulse Operation
In the following measurements, the maximum spectrum analyzer RBW of 1 MHz was employed. Peak
power measurements were made with the DUT employing CW mode on Tx1 channel. Duty cycle
correction is then applied to determine the average power values by examining the worst-case time-
domain transmission from the DUT at a single frequency for both transmit chains.

Duty Cycle to Obtain Average Power
When the DUT is operating in normal modulating mode.
         Tx chain #1 (Tx1) chirps for 17.6 ms with (single frequency) chirp width of 23.6 us / 250 MHz ~
1 us in a 28 us chirp period. This modulation repeats with a 50 ms period.
         Tx chain #2 (Tx2) chirps for 16.3 ms with (single frequency) chirp width of 23.6 us / 250 MHz ~
1 us in a 28 us chirp period. This modulation repeats with a 100 ms period.
         At the end of each single (Tx1) or paired (Tx1 then Tx2) set of chirp transmissions, the carrier
rests in CW at either the lowest, middle, or highest frequency in the 250 MHz chirp bandwidth for
approximately 1.6 ms before it is shut-down/attenuated. During this time, it appears to radiate principally
through transmit chain Tx1. This “rest” occurs at most twice in any given 100 ms window.
         As the Tx1 and Tx2 chain radiation patterns overlap for this radar, the worst case single
frequency duty cycle is most easily computed where both chains are assumed to contribute to a common
emission along the higher gain Tx1 channel.
              KETX1 = (2 x 1.6 ms + 2 x (1 us / 28 us x 17.6 ms))/ 100 ms) = 0.044 = -13.5 dB
                        KETX2 = (1 us / 28 us x 16.3 ms)/ 100 ms = 0.006 < -20 dB
  KEboth = (2 x 1.6 ms + 2 (1 us / 28 us x 17.6 ms) + 1 us / 28 us * 16.3 ms)/100 ms) = 0.050 = -13.0 dB

6.2 Potential Health Hazard EM Radiation Level
We use two methods to determine health hazard levels and these are obtained (1) by probing the near field
and (2) by computing EIRP from measured emission data.

(1) Direct measured radiation level from the unit is determined using a W-band Standard Gain horn fed
directly into the spectrum analyzer via the harmonic mixer. The analyzer is set to RBW=1 MHz, VBW=3
MHz. The physical aperture of the horn antenna is 1.869 x 2.461cm (A = 4.60 cm2). Its effective aperture
(Aeff ) at 76.5 GHz is 2.23 cm2, based on a Gain of 22.6 dB. For the subject DUT, the near-field region
was probed, rotating the DUT on all axis and polarizations and moving the DUT closer and closer to the

                                              Page 5 of 12


                         University of Michigan Radiation Laboratory
                   FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614

radome. Maximum received power was detected at the center in front of the Tx1 array. The maximum
average reading at the radome was

                     Pcw = Pr + KE = -7.1 dBm - 13.0 dB = -20.1 dBm = 0.010 mW

Hence the worst case power density of the device at its radome is

                      Smeas (mW/cm2) = Pcw /Aeff = 0.010 mW/ 2.23 cm2 = 0.004 mW/cm2

and meets the FCC Part 1.1307, 1.1310, 2.1091, and 2.0193 requirements.

(2) The worst case power density at a given separation distance can be calculated following FCC OET
Bulletin 65 as follows, where S is power density,

        Scalccw (3m) = -55.3 dBm/cm2 (avg. from Table 6.1)
        EIRPcw = Scalc (3m) x 4π (300 cm)2 = -55.3 + 60.5 = 5.2 dBm = 3.3 mW
        ERPcw = EIRP – 2.15 = 5.2 – 2.15 = 3.05 dBm = 2.02 mW

        Scalc (mW/cm2) = EIRP(mW)/(4π R(cm)2).

The DUT will be mounted in the bumper of an automobile, with a minimum separation of 1 cm between
the radome and the exterior surface of the vehicle. Following the formulation for power density at a
distance given the radar’s EIRP is

        Scalc (mW/cm2) = 3.3 mW /(4π 1cm 2) = 0.262 mW/ cm2.

Which is an overestimated value that also demonstrates compliance with FCC Part 1.1307, 1.1310,
2.1091, and 2.0193 requirements when the DUT is mounted in the motor vehicle.

6.3 Effect of Supply Voltage Variation
The DUT is designed to operate on 13.4 VDC, originating from a vehicular 12-volt system. The relative
radiated emissions and frequency were recorded at the CW mode "fundamental" (76.7 GHz) as the supply
voltage was varied from 6 to 18 VDC. Figure 6.2 shows the emission power variation.

6.4 Effect of Temperature Variation on Fundamental Frequency
The DUT was cooled to –20 C and its temperature was slowly increased to +55 C, during which time the
fundamental emission was monitored. Measurements of band-edge frequencies were taken every 10 C.
Figure 6.3 shows the emission center frequency as a function of temperature.

6.5 Sample Field Computations

FUNDAMENTAL
Refer to: (a) Table 6.2 (f > 40 GHz); line 3
          (c) Table 4.1; limit; (200 nW//cm2)

        To compute the power density we use:
              P3avg dB(mW/ cm2)       = 107 + Pr(3m) + Ka - Kg + KE – 155.74
                                      = 107 – 38.9.0 + 45.3 – 0 – 13.0 – 155.4
                                      = -55.3 dBm/cm2

        The limit is 200 nW/cm2 = -37.0 dBm/cm2

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                          University of Michigan Radiation Laboratory
                    FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614

SPURIOUS
Here we present computation for the reference signal emission at 4.8 GHz.
Refer to:      (a) Table 6.1 (f < 40 GHz); line 3
               (c) Table 4.1; 15.209 limit; 54 dB(µV/m)

To compute received power at 3 m from that measured at 1 m, with a N/F transition at 1.49 m we use:

                 Pr(3m)              = Pr(1m)-40 x Log10(1.49 m / 1.0 m) – 20 x Log10 (3 m / 1.49 m)

and field strength at 3 meters is:

                 E3 dB(µV/m)         = 107 + Pr(3m) + Ka - Kg + Ke
                                     = 107 – 67.0 + 24.7 – 37.5 + 0
                                     = 27.2 dB(µV/m)

The limit is 54.0 dB(µV/m).




                                                 Page 7 of 12


                                        University of Michigan Radiation Laboratory
                                  FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614




                           Table 6.1 Highest Emissions Measured (f<40 GHz)
                                   RF/Microwave Radiated Emissions                                                             Delphi 49TR
      Freq.     Ant.  Ant. Meas.            Pr     N/F Pr(3m) Ka Kg       E3  E3lim                    Pass
 #    GHz       Used  D,cm dist, m        dBm       m    dBm dB/m dB dBµV/m dBµV/m                      dB         Comments (Notes)
 1   2 to 4.5 R-Horn 15.00 1.00           -69.5    0.30 -79.0 26.0 26.5  27.5  54.0                    26.5    Noise, Pk (1,3,4,5,7)
 2   4.5 to 6 C-horn  21.6   1.00         -71.9    1.40 -84.4 24.7 37.5   9.8  54.0                    44.2    Noise, Pk (1,3,4,5)
 3     4.80    C-horn 21.6   1.00         -54.0    1.49 -67.0 24.7 37.5  27.2  54.0                    26.8    VCO / 16, Pk (5)
 4   6 to 8.6 XN-horn 28.9   1.00         -63.7    3.34 -82.8 25.3 37.0  12.5  54.0                    41.5    Noise, Pk (1,3,4,5)
 5   8.6to13 X-horn   19.4   3.00         -61.0    2.16 -61.0 28.5 37.0  37.5  54.0                    16.5    Noise, Pk (1,3,4,5)
 6     9.60    X-horn 19.4   3.00         -56.0    2.41 -56.0 29.5 37.0  43.5  54.0                    10.5    VCO / 8, Pk. (8)
 7   13to18 Ku-horn 15.2     0.25         -60.4    2.00 -100.1 29.3 17.0 19.2  54.0                    34.8    Noise, Pk (1,3,4,5)
 9   18to26 K-horn    12.0   0.25         -55.2    1.73 -93.6 33.2 0.0   46.6  54.0                     7.4    Noise, Pk (1,3,4,5)
10   26to40 Ka-horn 12.0     0.20         -64.3    2.50 -109.7 36.0 0.0  33.3  54.0                    20.7    Noise, Pk (1,3,4,5)
11
12   NOTES:
13   (1) When measured at stated distance from the DUT, no signal was detected.
14   (2) Mixer conversion loss is programmed in the spectrum analyzer and automatically adjusts the readings.
15   (3) When extrapolating to 3 m, use 40 dB/dec to far-field distance (or 3m, if 3m < N/F) and then 20 dB/dec to 3 meters.
16   (4) For Ave. measurement a VBW >= 1% RBW was used; RBW was always 1 MHz.
17   (5) DUT max. antenna size, D = 8.0 cm < test horn antenna dims.
18   (6) Extermal mixer, LO, and 36.5 dB IF amp were used
19   (7) For ridge-horn (R-Horn) use aperture dimension of one half wavelength, all horn aperatures > 8cm DUT aperature.
20   (8) At 9.60 GHz, Peak to Average ratiowas not applied in demonstrating compliance. (Measured with DUT in CW)
21
22
                                                     Digital Radiated Emissions*
      Freq.      Ant.      Ant.      Pr   Det.                       Ka Kg         E3       E3lim     Pass
 #    MHz        Used      Pol.     dBm   Used                     dB/m dB dBµV/m dBµV/m               dB              Comments
23
24
25
26
27
28
29
30
31 * For devices used in transportation vehicles, digital emissions are exempt from regulations per FCC 15.103(a) and ICES-003e
                                                                Conducted Emissions*
      Freq.     Line      Det. Vtest Vlim          Pass
 #    MHz       Side      Used dBµV dBµV            dB                                                                  Comments
32
33
34 * Not applicable - DUT is powered by motor vehicle system.
                                                                                                         Meas. 8/1/11-10/15/11; U of Mich.




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                                       University of Michigan Radiation Laboratory
                                 FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614




                                 Table 6.2 Highest Emissions Measured (f>40 GHz)
                                     RF/Microwave Radiated Emissions                                                                          Delphi 49TR
        Freq.      Ant.    Ant. Meas.       Pr    N/F Pr(3m) Ka Kg                   E3        E3lim          Pass
 #      GHz        Used   D,cm dist, m dBm         m       dBm dB/m dB dBm/cm2 dBm/cm2                         dB              Comments (Notes)
 1     40-76     U-horn     8.0    0.20 -75.8 1.71 -117.9 41.0 0.0                 -125.7      -65.2          60.5    Noise, pk. meas. (1-5)
 2      76.56 W-horn        8.0    3.00 -39.1 3.27 -39.1 45.3 0.0                   -42.5      -17.0          25.5    Signal chirped (pk) meas (2-6,8)
 3      76.56 W-horn        8.0    3.00 -39.1 3.27 -39.1 45.3 0.0                   -55.5      -37.0          18.5    Signal Avg. (2-7)
 4      76.70 W-horn        8.0    3.00 -38.9 3.27 -38.9 45.3 0.0                   -42.3      -17.0          25.3    Signal CW pk. meas (2-6)
 5      76.70 W-horn        8.0    3.00 -38.9 3.27 -38.9 45.3 0.0                   -55.3      -37.0          18.3    Signal Avg. (2-7)
 6      76.84 W-horn        8.0    3.00 -39.9 3.28 -39.9 45.3 0.0                   -43.3      -17.0          26.3    Signal chirped (pk) meas (2-6,8)
 7      76.84 W-horn        8.0    3.00 -39.9 3.28 -39.9 45.3 0.0                   -56.3      -37.0          19.3    Signal Avg. (2-7)
 8    77-110. W-horn        8.0    0.25 -47.9 3.29 -91.1 46.4 0.0                   -93.4      -65.2          28.2    Noise, pk. meas.(1-5)
 9     153.12 G-horn        8.0    0.25 -55.2 6.52 -98.4 51.3 0.0                   -95.8      -65.2          30.6    Signal, pk. meas. (2-6)
10     229.68 G-horn        8.0    0.25 -77.1 9.78 -120.3 54.0 0.0                 -115.0      -60.0          55.0    Noise, pk. meas. (1-6)
11     to 231 G-horn        8.0    0.25 -77.1 9.78 -120.3 54.0 0.0                 -115.0      -60.0          55.0    Noise, pk. meas. (1-6)
12   NOTES:
13   (1) When measured at 0.25 cm from the DUT, no signal was detected anywhere, even at the radome.
14   (2) Mixer conversion loss is programmed in the spectrum analyzer and automatically adjusts the readings.
15   (3) When extrapolating to 3 m, use 40 dB/dec to far-field distance (or 3m, if 3m < N/F) and then 20 dB/dec to 3 meters.
16   (4) For Ave. measurement a VBW >= 1% RBW was used; RBW was always 1 MHz.
17   (5) DUT max. antenna size, D = 8.0 cm > All test horn aperatures.
18   (6) Extermal mixer, LO, and 36.5 dB IF amp were used
19   ((7)) Average
                g Power Limits Apply.
                                  pp y Duty
                                          y of -13.0 dB applied
                                                          pp     to ppeak CW number ((see section 6.1 of test report)
                                                                                                                p )
20    (8) Peak fundamental emission at ends of band could only be measured in chirp mode, DUT cw mode is only avaliable at middle of band.
21
                                                       RF Health Hazard - Fundamental
      Freq.     Ant.      Ant. Meas.    Pr        N/F Pr(3m) Ka Kg     E3                      EIRP      S (1cm)
 #    GHz       Used      D,cm dist, m dBm         m   dBm dB/m dB dBm/cm2                     dBm       mW/cm2          Comments (Notes)
22    76.4     W-horn      8.0   3.00 -38.9       3.26 -38.9 45.3 0.0 -42.3                    18.2        5.25  Peak
23    76.4     W-horn      8.0   3.00 -38.9       3.26 -38.9 45.3 0.0 -55.3                     5.2        0.26  Average
24
                                                          RF Health Hazard - Spurious
      Freq.     Ant.      Ant. Meas.    Pr        N/F Pr(3m) Ka Kg                 E3          EIRP      S (1cm)
 #    GHz       Used      D,cm dist, m dBm         m   dBm dB/m dB              dBµV/m         dBm       mW/cm2              Comments (Notes)
25    4.80     C-horn     21.6   1.00 -54.0       0.15 -63.5 24.7 37.5            30.7         -64.5     0.000000 Peak
26    9.60     X-horn     19.4   3.00 -56.0       2.41 -56.0 29.5 37.0            43.5         -51.7     0.000001 Peak
27
28
29
30
31
32
                                                                                                                     Meas. 8/1/11-10/15/11; U of Mich.




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                        University of Michigan Radiation Laboratory
                  FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614




Fig. 6.1(a) Emission Spectrum + Emission Bandwidth   Fig. 6.1(b) Average Emissions dominate at Low,
(Tx1 + Tx2 along boresight)                          Mid, High




Fig. 6.1(c) Center Frequency Time Domain Chirp       Fig. 6.1(d) Repeated Chirp Sequence for Tx1
                                                     and Tx2 Chains




Fig. 6.1(e) Tx1 Chain Chirp duration measured        Fig. 6.1(f) Tx2 Chain Chirp duration measured
(17.7 ms).                                           (16.3 ms)



                                           Page 10 of 12


                        University of Michigan Radiation Laboratory
                  FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614




Fig. 6.1(g) CW “rest” emission measured (1.600 ms)     Fig. 6.1(h) Single frequency chirp period (same
                                                       for Tx1&2 chains)




                            Fig. 6.2 Relative amplitude vs. supply voltage.




                          Fig. 6.3 Relative CW frequency vs. supply voltage.



                                           Page 11 of 12


      University of Michigan Radiation Laboratory
FCC Part 15 / IC RSS-210/Gen - Test Report No. 417124-614




    High Frequency DUT test setup (one of three axes tested)




    High Frequency DUT test setup (one of three axes tested)




                        Page 12 of 12



Document Created: 2011-11-21 06:51:49
Document Modified: 2011-11-21 06:51:49

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