DSS REPORT 2

FCC ID: SXXKTS-1042

Test Report

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FCCID_4417317

V1.0 Page 36 of 52 Report No.: CTL1908013011-WF 8DPSK Modulation 3-DH1 3-DH3 3-DH5

V1.0 Page 37 of 52 Report No.: CTL1908013011-WF 3.8. Out-of-band Emissions Limit In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF con-ducted or a radiated measurement, pro-vided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter com-plies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. Test Procedure Connect the transmitter output to spectrum analyzer using a low loss RF cable, and set the spectrum analyzer to RBW=100 kHz, VBW= 300 kHz, peak detector , and max hold. Measurements utilizing these setting are made of the in-band reference level, bandedge and out-of-band emissions. Test Configuration SPECTRUM EUT ANALYZER Test Results Remark: The measurement frequency range is from 30MHz to the 10th harmonic of the fundamental frequency. The lowest, middle and highest channels are tested to verify the spurious emissions and bandage measurement data. We measured all conditions (DH1, DH3, DH5) and recorded worst case at DH5 Test plot as follows:

V1.0 Page 38 of 52 Report No.: CTL1908013011-WF GFSK CH00 GFSK CH39 Reference Reference 30MHz-3GHz 30MHz-3GHz 3GHz-25GHz 3GHz-25GHz

V1.0 Page 39 of 52 Report No.: CTL1908013011-WF GFSK CH78 π/4DQPSK CH00 Reference Reference 30MHz-3GHz 30MHz-3GHz 3GHz-25GHz 3GHz-25GHz

V1.0 Page 40 of 52 Report No.: CTL1908013011-WF π/4DQPSK CH39 π/4DQPSK CH78 Reference Reference 30MHz-3GHz 30MHz-3GHz 3GHz-25GHz 3GHz-25GHz

V1.0 Page 41 of 52 Report No.: CTL1908013011-WF 8DPSK CH00 8DPSK CH39 Reference Reference 30MHz-3GHz 30MHz-3GHz 3GHz-25GHz 3GHz-25GHz

V1.0 Page 42 of 52 Report No.: CTL1908013011-WF 8DPSK CH78 Reference 30MHz-3GHz 3GHz-25GHz

V1.0 Page 43 of 52 Report No.: CTL1908013011-WF Band-edge Measurements for RF Conducted Emissions: GFSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on π/4DQPSK Left Band edge hoping off Right Band edge hoping off

V1.0 Page 44 of 52 Report No.: CTL1908013011-WF Left Band edge hoping on Right Band edge hoping on 8DPSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on

V1.0 Page 45 of 52 Report No.: CTL1908013011-WF 3.9. Pseudorandom Frequency Hopping Sequence TEST APPLICABLE For 47 CFR Part 15C section 15.247 (a) (1) requirement: Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. EUT Pseudorandom Frequency Hopping Sequence Requirement The pseudorandom frequency hopping sequence may be generated in a nice-stage shift register whose 5th and 9th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first one of 9 consecutive ones, for example: the shift register is initialized with nine ones. ● Number of shift register stages:9 ● Length of pseudo-random sequence:29-1=511 bits ● Longest sequence of zeros:8(non-inverted signal) An example of pseudorandom frequency hopping sequence as follows: Each frequency used equally one the average by each transmitter. The system receiver have input bandwidths that match the hopping channel bandwidths of their corresponding transmitter and shift frequencies in synchronization with the transmitted signals.

V1.0 Page 46 of 52 Report No.: CTL1908013011-WF 3.10. Antenna Requirement Standard Applicable For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247 (c), if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. Refer to statement below for compliance The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The maximum gain of antenna was 0dBi. BT Antenna

V1.0 Page 47 of 52 Report No.: CTL1908013011-WF 4. Test Setup Photos of the EUT

V1.0 Page 48 of 52 Report No.: CTL1908013011-WF 5. Photos of the EUT External Photos of EUT

V1.0 Page 49 of 52 Report No.: CTL1908013011-WF

V1.0 Page 50 of 52 Report No.: CTL1908013011-WF

V1.0 Page 51 of 52 Report No.: CTL1908013011-WF Internal Photos of EUT BT antenna

V1.0 Page 52 of 52 Report No.: CTL1908013011-WF ********************** End of Report **********************


Document Created: 2019-08-28 15:49:03
Document Modified: 2019-08-28 15:49:03
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