Test report-DSS_Part2

FCC ID: QKH-KANTOTUK

Test Report

Download: PDF
FCCID_4200787

Page 37 of 53 Report No.: UNIA2018120727FR-01 10. SPURIOUS RF CONDUCTED EMISSION 10.1 Test Limit 1. Below -20dB of the highest emission level in operating band. 2. Fall in the restricted bands listed in section 15.205. The maximum permitted average field strength is listed in section 15.209. 3.For below 30MHz,For 9KHz-150kHz,150K-10MHz,We use the RBW 1KHz,10KHz, So the limit need to calculated by “10lg(BW1/BW2)“. for example For9KHz-150kHz,RBW 1KHz, The Limit= the highest emission level-20-10log(100/1)= the highest emission level-40. 10.2 Test Procedure The Spurious RF conducted emissions compliance of RF radiated emission should be measured by following the guidance in ANSI C63.10-2013, For 9KHz-150kHz, Set RBW=1kHz and VBW= 3KHz; For 150KHz-10MHz, Set RBW=10kHz and VBW= 30KHz:For 10MHz-25GHz ,Set RBW=100kHz and VBW= 300KHz in order to measure the peak field strength, and mwasure frequeny range from 9KHz to 25GHz. 10.3 Test Setup 10.4 Test Result PASS Remark: All modes of GFSK, π/4 DQPSK, 8DPSK were tested, only the worst result of GFSK was reported as below:

Page 38 of 53 Report No.: UNIA2018120727FR-01 GFSK CH: 2402MHz 30MHz~1GHz

Page 39 of 53 Report No.: UNIA2018120727FR-01 1GHz~25GHz GFSK CH: 2441MHz

Page 40 of 53 Report No.: UNIA2018120727FR-01 30MHz~1GHz 1GHz~25GHz

Page 41 of 53 Report No.: UNIA2018120727FR-01 GFSK CH: 2480MHz 30MHz~1GHz

Page 42 of 53 Report No.: UNIA2018120727FR-01 1GHz~25GHz

Page 43 of 53 Report No.: UNIA2018120727FR-01 11. NUMBER OF HOPPING FREQUENCY 11.1 Test Limit Frequency hopping systems in the 2400–2483.5MHz band shall use at least 15 channels. 11.2 Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator.Set spectrum analyzer start 2400MHz to 2483.5MHz with RBW=1MHz and VBW=3MHz. 11.3 Test Setup 11.4 Test Result PASS Modulation Number of Hopping Channel Limit Result GFSK 79 π/4DQPSK 79 ≥15 Pass 8DPSK 79 GFSK

Page 44 of 53 Report No.: UNIA2018120727FR-01 π/4DQPSK 8DPSK

Page 45 of 53 Report No.: UNIA2018120727FR-01 12. TIME OF OCCUPANCY(DWELL TIME) 12.1 Test Limit The average time of occupancy on any channel shall not be greater than 0.4 seconds within a pe-riod of 0.4 seconds multiplied by the number of hopping channels employed. 12.2 Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator. Set center frequency of spectrum analyzer=operating frequency with RBW=1MHz and VBW=3MHz,Span=0Hz. 12.3 Test Setup 12.4 Test Result PASS Type Modulation CH Pulse time(ms) Dwell Time(ms) Limit(ms) Result Low 3.00 319.10 400 Pass Dwell Time GFSK Mid 3.00 319.10 400 Pass High 2.96 315.73 400 Pass CH: 2402MHz

Page 46 of 53 Report No.: UNIA2018120727FR-01 CH: 2441MHz CH: 2480MHz

Page 47 of 53 Report No.: UNIA2018120727FR-01 Type Modulation CH Pulse time(ms) Dwell Time(ms) Limit(ms) Result Low 2.95 314.67 400 Pass Dwell Time π/4DQPSK Mid 2.97 316.80 400 Pass High 2.99 318.93 400 Pass CH: 2402MHz CH: 2441MHz

Page 48 of 53 Report No.: UNIA2018120727FR-01 CH: 2480MHz Type Modulation CH Pulse time(ms) Dwell Time(ms) Limit(ms) Result Low 2.94 313.60 400 Pass Dwell Time 8DPSK Mid 2.95 314.67 400 Pass High 2.94 313.60 400 Pass CH: 2402MHz

Page 49 of 53 Report No.: UNIA2018120727FR-01 CH: 2441MHz CH: 2480MHz

Page 50 of 53 Report No.: UNIA2018120727FR-01 13. PSEUDORANDOM FREQUENCY HPPPING SEQUENCE For 47 CFR Part 15C section 15.247 (a)(1) requirement Frequency hopping systems shall have hopping channel carrier fre-quencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Al-ternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier fre-quencies 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 shal l hop to chan-nel frequencies that are selected at the system hopping rate from a pseudo ran-domly ordered list of hopping fre-quencies. Each frequency must be used equally on the average by each trans-mitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their cor-responding transmitters and shall shift frequencies in synchronization with the transmitted signals. TEUT 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 frist stage.The sequence begins with the frist 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 explame 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.

Page 51 of 53 Report No.: UNIA2018120727FR-01 14. 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. Antenna Connected Construction The antenna used in this product is an Internal Antenna, The directional gains of antenna used for transmitting is 1dBi. ANTENNA:

Page 52 of 53 Report No.: UNIA2018120727FR-01 15. PHOTOGRAPH OF TEST 15.1 Radiated Emission Below 1G Above 1G

Page 53 of 53 Report No.: UNIA2018120727FR-01 15.2 Conducted Emission ***End of Report***


Document Created: 2019-03-13 16:55:09
Document Modified: 2019-03-13 16:55:09
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC