Part III BTB Module RF Report

FCC ID: QOQWRAP2022-1-B2B

Test Report

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FCCID_469538

2. TIME OF OCCUPANCY (DWELL TIME) FOR PACKET TYPE DH3. A DH3 Packet need 3 time slots for transmitting and 1 time slot for receiving. Then the system makes worst case 1600/4 = 400 hops per second with 79 channels. So you have each channel 400/79 = 5.1 times per second and so for a period of 0.4 x 79 = 31.6 seconds you have 5.1 x 31.6 = 161.16 times of appearence . Each Tx-time per appearence is 1.70 ms (see next plot). So we have 161.16 x 1.70 ms = 273.97 ms per 31.6 seconds. Verdict: PASS Report No: Page: 13 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

3. TIME OF OCCUPANCY (DWELL TIME) FOR PACKET TYPE DH5. A DH5 Packet need 5 time slots for transmitting and 1 time slot for receiving. Then the system makes worst case 1600/6 = 266.67 hops per second with 79 channels. So you have each channel 266.67/79 = 3.37 times per second and so for a period of 0.4 x 79 = 31.6 seconds you have 3.37 x 31.6 = 106.49 times of appearence . Each Tx-time per appearence is 2.93 ms (see next plot). So we have 106.49 x 2.93 ms = 312.02 ms per 31.6 seconds. Verdict: PASS Report No: Page: 14 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

Section 15.247 Subclause (b). Maximum peak output power and antenna gain SPECIFICATION For frequency hopping systems operating in the 2400-2483.5 MHz band employing at least 75 hopping channels: 1 watt (30 dBm). RESULTS MAXIMUM PEAK OUTPUT POWER (CONDUCTED). See next plots. Lowest frequency Middle frequency Highest frequency 2402 MHz 2441 MHz 2480 MHz Instrument reading (dBm) 14.03 13.68 13.43 Cable loss correction (dB) 1.2 1.2 1.2 Maximum peak power (dBm) 15.23 14.88 14.63 Measurement uncertainty (dB) ±1.5 The maximum declared antenna gain for this device is 0 dBi, therefore the maximum theoretical peak radiated power (EIRP) in the three measurement channels for this device is 15.23 dBm or 33.34 mW. The actual peak rediated power (EIRP) was measured for the lowest, middle and highest frequency (see next plots): MAXIMUM PEAK OUTPUT POWER (RADIATED). Lowest frequency Middle frequency Highest frequency 2402 MHz 2441 MHz 2480 MHz Instrument reading (dBm) -22.94 -22.55 -23.39 Correction Factor (dB) 34.96 35.10 35.24 Maximum EIRP peak power (dBm) 12.02 12.55 11.85 Measurement uncertainty (dB) +1.98 / -1.75 Declared peak gain: 0 dBi The maximum directional gain of the antenna is less than 6 dBi and therefore the maximum output power is not required to be reduced from the stated values. Verdict: PASS Report No: Page: 15 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (CONDUCTED). Lowest Channel: 2402 MHz. Report No: Page: 16 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (CONDUCTED). Middle Channel: 2441 MHz. Report No: Page: 17 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (CONDUCTED). Highest Channel: 2480 MHz. Report No: Page: 18 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (RADIATED). Lowest Channel: 2402 MHz. Report No: Page: 19 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (RADIATED). Middle Channel: 2441 MHz. Report No: Page: 20 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

PEAK OUTPUT POWER (RADIATED). Highest Channel: 2480 MHz. Report No: Page: 21 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC

Section 15.247 Subclause (c). Band-edge of conducted emissions (Transmitter) SPECIFICATION Emissions outside the frequency band in which the intentional radiator is operating shall be at least 20dB below the highest level of the desired power. RESULTS: 1. LOW FREQUENCY SECTION 2402 MHz (HOPPING OFF). See next plot. Verdict: PASS Report No: Page: 22 of 46 19807RET.101 Annex A Date: 2004-05-31 FET45_00.DOC


Document Created: 2004-09-16 17:33:25
Document Modified: 2004-09-16 17:33:25
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