WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/6104660.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu, Taiwan, 300 DFS client device channel plan and software operational declaration Date: 2022-08-01 We, Realtek Semiconductor Corp., declare that the device, FCC ID: TX2-RTL8852B Model Name: RTL8852B, does not have Ad Hoc on non-US frequencies and/or on DFS frequencies. Also, the client software and associated drivers will not initiate any transmission on DFS frequencies without initiation by a master. This includes restriction on transmissions for beacons and support for ad-hoc peer-to-peer modes. Below is the channel / frequency plan for the device CH 1 Frequency (MHz) 2412 Active 12 Scan Type CH Frequency (MHz) 2467 Active Scan Type 2 2417 11 2462 Active Active Active Active Active Active Active Active Active Active 7 2442 4 2427 10 2457 8 2447 5 2432 3 2422 6 2437 9 2452 13 2472 Active Frequency (MHz) 5180 36 48 42 5240 5210 Active Active Active Active Active Active Active 44 5220 38 5190 40 5200 46 5230 Frequency (MHz) 5260 52 58 5290 Passive Passive Passive Passive Passive Passive Passive 64 5320 60 5300 54 5270 56 5280 62 5310 CH Scan Type CH Scan Type CH 100 Frequency (MHz) 5500 Scan Type CH 124 Frequency (MHz) 5620 102 5510 104 5520 110 5550 Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive 136 5680 138 5690 132 5660 144 5720 140 5700 134 5670 128 5640 126 5630 142 5710 112 5560 106 5530 120 5600 116 5580 108 5540 118 5590 122 5610 Scan Type Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive CH 149 Frequency (MHz) 5745 165 5825 Active Active Active Active Active Active Active Active 161 5805 155 5775 157 5785 151 5755 153 5765 159 5795 Scan Type Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu, Taiwan, 300 Also, on DFS channels, the WLAN driver in the device operates under the control of an AP at all times, except when in ad-hoc mode on US non-DFS channels. The device passively scans DFS frequencies until a master device is detected. The control of this functionality is not accessible to anyone under any conditions. Furthermore, the firmware is protected by a special signature and CRC checksum. Signature and CRC checksum will be calculated and verified before firmware upgrade. Unauthorized modification to firmware will lead to the failure of verification and thus firmware upgrade will not be allowed. Sincerely yours, Sincerely yours,
Dana Liaw / Project Manager Realtek Semiconductor Corp. Tel: + 886-3-5780211 Ext.13164 Fax: + 886-3-5776598 E-mail: danaliaw@realtek.com