Declaration Letter for HAC MIF

FCC ID: IHDT56YC1

Cover Letter(s)

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FCCID_4328302

Motorola Mobility LLC 222 W. Merchandise Mart Plaza, Chicago, Illinois 60654, United States Tel: 847-687-6928 ; Fax: 954-337-2377 Declaration - MIF for HAC RF Interference Evaluation To whom it may concern: The device, with FCC ID: IHDT56YC1 Hearing Aid Compatibility Requirement is going to be certified under ANSI C63.19 2011 version per Part 20.19. For Radio Frequency Interference, Speag’s Audio Interference Analyzer (AIA) or other indirect or direct measurement was not used to determine the M rating. The M rating was determined by measuring the maximum steady state average E-field values in dB (V/m) or average antenna input power as documented in HAC test report exhibit, and adding the MIF value in dB. The MIF values below for the worst-case operation mode for all air interfaces are pre-determined values provided by Speag. UID Communication System Name MIF(dB) 10021 GSM-FDD(TDMA,GMSK) 3.63 10025 EDGE-FDD (TDMA, 8PSK, TN 0) 3.75 10460 UMTS-FDD(WCDMA, AMR) -25.43 10225 UMTS-FDD (HSPA+) -20.39 10170 LTE-FDD(SC-FDMA,1RB,20MHz,16-QAM) -9.76 10172 LTE-TDD (SC-FDMA, 1 RB, 20 MHz, QPSK) -1.62 10173 LTE-TDD (SC-FDMA, 1 RB, 20 MHz, 16-QAM) -1.44 10174 LTE-TDD (SC-FDMA, 1 RB, 20 MHz, 64-QAM) -1.54 10061 IEEE 802.11b WiFi 2.4 GHz (DSSS, 11 Mbps) -2.02 10077 IEEE 802.11g WiFi 2.4 GHz (DSSS/OFDM, 54 Mbps) 0.12 10427 IEEE 802.11n (HT Greeneld, 150 Mbps, 64-QAM) -13.44 10069 IEEE 802.11a/h WiFi 5 GHz (OFDM, 54 Mbps) -3.15 10616 IEEE 802.11ac WiFi (40MHz, MCS0, 90pc duty cycle) -5.57 We are confirming that the Speag simulation provided represents all the air interface modes applicable for a HAC rating for this handset. Sincerely, Jeff Narducci narducci@motorola.com


Document Created: 2019-07-05 16:40:37
Document Modified: 2019-07-05 16:40:37
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