Exhibit C RE Test Setup photographs

FCC ID: DD4ULXD1-H50

Test Setup Photos

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FCCID_4216987

Engineering Test Report No. SEL-043/ULXD1 H50 FCC15C Appendix B All significant broadband and narrowband signals found in the preliminary sweeps were then measured using a peak detector at a test distance of 3 meters. The measurements were made with a BiConiLog antenna over the frequency range of 30 MHz to 1 GHz, and a double ridged waveguide antenna over the frequency range of 1 GHz to 7 GHz. To ensure that maximum emission levels were measured, the following steps were taken: i. The EUT was rotated so that all of its sides were exposed to the receiving antenna. ii. Since the measuring antennas are linearly polarized, both horizontal and vertical field components were measured. iii. The measuring antenna was raised and lowered from 1 to 4 meters for each antenna polarization to maximize the readings. The equivalent power was determined from the field intensity levels measured at 3 meters using the substitution method. To determine the emission power, another antenna was set in place of the EUT and connected to a calibrated signal generator. (A tuned dipole was used for all measurements below 1GHz and a double ridged waveguide antenna was used for all measurements above 1GHz.) The output of the signal generator was adjusted to match the received level at the EMI receiver. The signal level was recorded. The reading was corrected to compensate for cable loss and antenna gain. Results: The plots of the peak preliminary radiated voltage levels in the graphs on page 24 thru page 29. The ERP measurements are shown on pages 30 thru page 32. All emissions measured from the EUT were within the ETSI EN 300 422-1 specification limits. The temperature during the testing in the RF Chamber was 73 degrees F, with relative humidity of 17%. Figure B 1: ULXD1 Transmitter Test Setup Figure B 2: ULXD1 Transmitter Test Setup Page 23 of 51


Document Created: 2019-03-27 14:15:47
Document Modified: 2019-03-27 14:15:47
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