AI-Link WF-R12B-UWD1 User manual

WF-R12B-UWD1
Features：
Supported WLAN Standard
IEEE Std. 802.11a
IEEE Std. 802.11b
IEEE Std. 802.11g
IEEE Std. 802.11n
IEEE Std. 802.11ac
Chip Solution
RealtekRTL8812BU-VR
Size
47.0mm x 30.0mm x 6.0mm
Interface
Assemble
Band
Antenna
Power supply
USB SMD 2.4G/5G external
antenna 3.3V
Sichuan AI-Link Technology Co.,Ltd.
Add: Anzhou,Industrial park,Mianyang,Sichuan
Tel: [phone]
:

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 2 of 14
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We accept the specification after Confirmed
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Please feed back this paper and first paper after your signature by the address,thanks!
ADD：Anzhou,Industrial park,Mianyang,Sichuan
Factory：Sichuan AI-Link Technology Co.,Ltd.
Approved Checked
Designed Product WiFi Module
Model WF-R12B-UWD1
Date
2020-02-09

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 3 of 14
Record of Modification
Version
Date Main content of modification Confirm
V1.0 2020/02/09 first edition QinDaKai

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 4 of 14
1. Introduction
WF-R12B-UWD1 module design is based on Realtek RTL8812BU-VR solution,The RTL8812BU-VR is
a highly integrated single chip which has built in a 2x2 dual-band wireless LAN radio. The Module is a
highly integrated MAC/BBP and 2.4/5GHz PA/LNA single chip which supports a 866.7Mbps PHY rate.
The Module is designed to support standard-based features in the areas of security, quality of service,
and international regulations, giving end users the greatest performance anytime and in any
circumstance. This documentation describes the engineering requirements specification.
1.1 RF module Overview
The general HW architecture for the module is shown in Figure 1. This WLAN Module design is based
on Realtek RTL8812BU-VR. It is a highly integrated single-chip MIMO(Multiple In Multiple Out) Wireless
LAN (WLAN) network interface controller complying with the 802.11 specification over USB interface. It
combines a MAC, a 2T2R capable baseband, and RF in a single chip. An intelligent Wi-Fi coexistence
algorithm is implemented to provide the best harmonized Wi-Fi performance.
RFIP_5G_S0
RFIP_5G_S0
RFIP_2.4G_S0
RFIP_2.4G_S0
RFIP_2.4G_S1
RFIP_2.4G_S1
RFIP_5G_S1
RFIP_5G_S1
BALUN BALUN
MCU
Ext
interface
MAC
Baseband
ADC ADC ADC
ADC
Transceiver
2.4G/5G
WLAN
SPS/LDO MENORY
Crystal
3.3V
USB
Figure 1 WF-R12B-UWD1 Block Diagram
1.2 Specification reference
This specification is based on additional references listed below.
_ IEEE Std. 802.11a
_ IEEE Std. 802.11b
_ IEEE Std. 802.11g
_ IEEE Std. 802.11n
_ IEEE Std. 802.11ac

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 5 of 14
1.3 System Functions
Table1: General Specification as below:
Main Chipset
Realtek RTL8812BU-VR
Operating Frequency
2.4G/5G
WiFi Standard
802.11a/b/g/n/ac (2x2)
Modulation
WIFI:11b: DBPSK, DQPSK and CCK and DSSS
11a/g: BPSK, QPSK, 16QAM, 64QAM and OFDM
11n: BPSK, QPSK, 16QAM, 64QAM and OFDM
11ac: BPSK, QPSK, 16QAM, 64QAM,256QAM and OFDM
Data rates
11b: 1, 2, 5.5 and 11Mbps
11a/g: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps
11n: MCS0~15, up to 300Mbps
11ac: MCS0~9, Nss=2, up to 866.7Mbps
Form factor
10pins
Host Interface
USB 2.0
PCB Stack
4-layers design
Dimension Typical，47.0mm x 30.0mm
Antenna
External Antennas Design
Operation Temperature
0
℃
to +60
℃
Storage Temperature
-25
℃
to +85
℃
Operation Voltage
3.3V +/-10%

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 6 of 14
2. Mechanical Specification
2.1 Mechanical Outline Drawing
Typical Dimension (L x W ): 47.0mm x 30.0mm x 6.0mm
General tolerance: ±0.20mm
Remark:
Model No.: WF-R12B-UWD1, WF-R12B-UWD2, WF-R12B-UWD3
The electrical circuit design, layout, components used, internal wiring and functions were identical for all the above models, with
only the model WF-R12B-UWD1 and WF-R12B-UWD2 difference on the connector part and model No., WF-R12B-UWD2 and
WF-R12B-UWD3 difference on overall dimension and model No.
2.2 Pin definition：
Pin
Define
Description
1
Vcc
3.3V
2
Vcc
3.3V
3
USB DM
USB D-
4
USB DP
USB D+
5
GND
GND
6
WOWn
WL_WAKE_HOST
7
RST
Pdn
8
GND
GND
9
HST_WAKE_WL
HST_WAKE_WL
10
GND
GND

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 7 of 14
2.3 Product Picture
TOP VIEW BOTTOM VIEW
Note:
the BT seat in the red box is for future upgrade of the sample.

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 8 of 14
3. Electrical Specification
This Specification is based-on conductive DVT testing result. The extreme condition include overall
temperature (0℃,+25℃,+40℃) and overall voltage (3.0V,3.3V,3.6V).
3. 1 IEEE 802.11g/a Section:
Items Contents
Specification
IEEE802.11g & IEEE802.11a
Mode
BPSK, QPSK, 16QAM, 64QAM and OFDM
Channel
CH1 to CH11 @ 11g
CH36 to CH165 @ 11a
Data rate
6, 9, 12, 18, 24, 36, 48, 54Mbps
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
1. Power Levels
1) 14dBm Target (For Each antenna port) @ 11g
-
14.0
-
dBm
54M
2) 14dBm Target (For Each antenna port) @ 11a
-
14.0
-
dBm
54M
2. Spectrum Mask @ Target Power
1) at fc +/-11MHz
-
-
-20
dBr
2) at fc +/-20MHz
-
-
-28
dBr
3) at fc > +/-30MHz
-
-
-40
dBr
3. Constellation Error(EVM) @ Target Power
1) 6Mbps
-
-
-5
dB
2) 9Mbps
-
-
-8
dB
3) 12Mbps
-
-
-10
dB
4) 18Mbps
-
-
-13
dB
5) 24Mbps
-
-
-16
dB
6) 36Mbps
-
-
-19
dB
7) 48Mbps
-
-
-22
dB
8) 54Mbps
-
-
-25
dB
4. Frequency Error
1) IEEE802.11g
-10
-
10
ppm
2) IEEE802.11a
-10
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5. Minimum Input Level Sensitivity(each chain)
1) 6Mbps (PER
≦
10%)
-
-
-82
dBm
2) 9Mbps (PER
≦
10%)
-
-
-81
dBm
3) 12Mbps (PER
≦
10%)
-
-
-79
dBm
4) 18Mbps (PER
≦
10%)
-
-
-77
dBm
5) 24Mbps (PER
≦
10%)
-
-
-74
dBm
6) 36Mbps (PER
≦
10%)
-
-
-70
dBm
7) 48Mbps (PER
≦
10%)
-
-
-66
dBm
8) 54Mbps (PER
≦
10%)
-
-
-65
dBm
6. Maximum Input Level (PER
≦
10%)
1) IEEE802.11g
-20
-
-
dBm
2) IEEE802.11a
-20
dBm
Tolerance: +/-2dBm
※Total Max. Power = WLAN0 Max. Power + WLAN1 Max. Power + 3dBm

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 9 of 14
3.2 IEEE 802.11b Section:
Items Contents
Specification
IEEE802.11b
Mode
DBPSK, DQPSK and CCK and DSSS
Channel
CH1 to CH11
Data rate
1, 2, 5.5, 11Mbps
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
1. Power Levels(Calibrated)
1) 16dBm Target (For Each antenna port)
-
16.0
-
dBm
11M
2. Spectrum Mask @ Target Power
1) fc +/-11MHz to +/-22MHz
-
-
-30
dBr
2) fc > +/-22MHz
-
-
-50
dBr
3. Constellation Error(EVM) @ Target Power
1) 1Mbps
-
-
-10
dB
2) 2Mbps
-
-
-10
dB
3) 5.5Mbps
-
-
-10
dB
4) 11Mbps
-
-20
-10
dB
4. Frequency Error
-10
-
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5. Minimum Input Level Sensitivity(each chain)
1) 1Mbps (FER
≦
8%)
-
-76
dBm
2) 2Mbps (FER
≦
8%)
-
-76
dBm
3) 5.5Mbps (FER
≦
8%)
-
-76
dBm
4) 11Mbps (FER
≦
8%)
-
-76
dBm
6. Maximum Input Level (FER
≦
8%)
-8
-
-
dBm
Tolerance: +/-2dBm
※Total Max. Power = WLAN0 Max. Power + WLAN1 Max. Power + 3dBm

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 10 of 14
3.3 IEEE 802.11n HT20 Section:
Items Contents
Specification
IEEE802.11n HT20 @ 2.4G
IEEE802.11n HT20 @ 5G
Mode
BPSK, QPSK, 16QAM, 64QAM and OFDM
Channel
CH1 to CH11 @ 2.4G
CH36 to CH165 @ 5G
Data rate (MCS index)
MCS0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
1. Power Levels
1) 12dBm Target (For Each antenna port) @ 2.4G
-
12.0
-
dBm
mcs7
2) 12dBm Target (For Each antenna port) @ 5G
-
12.0
-
dBm
mcs7
2. Spectrum Mask @ Target Power
1) at fc +/-11MHz
-
-
-20
dBr
2) at fc +/-20MHz
-
-
-28
dBr
3) at fc > +/-30MHz
-
-
-45
dBr
3. Constellation Error(EVM) @ Target Power
1) MCS0
-
-
-5
dB
2) MCS1
-
-
-10
dB
3) MCS2
-
-
-13
dB
4) MCS3
-
-
-16
dB
5) MCS4
-
-
-19
dB
6) MCS5
-
-
-22
dB
7) MCS6
-
-
-25
dB
8) MCS7
-
-
-28
dB
4. Frequency Error
1) IEEE802.11n HT20 @ 2.4G
-10
-
10
ppm
2) IEEE802.11n HT20 @ 5G
-10
-
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5. Minimum Input Level Sensitivity(each chain)
1) MCS0 (PER
≦
10%)
-
-
-82
dBm
2) MCS1 (PER
≦
10%)
-
-
-79
dBm
3) MCS2 (PER
≦
10%)
-
-
-77
dBm
4) MCS3 (PER
≦
10%)
-
-
-74
dBm
5) MCS4 (PER
≦
10%)
-
-
-70
dBm
6) MCS5 (PER
≦
10%)
-
-
-66
dBm
7) MCS6 (PER
≦
10%)
-
-
-65
dBm
8) MCS7 (PER
≦
10%)
-
-
-64
dBm
6. Maximum Input Level (PER
≦
10%)
1) IEEE802.11n HT20 @ 2.4G
-20
-
-
dBm
2) IEEE802.11n HT20 @ 5G
-30
-
-
dBm
Tolerance: +/-2dBm
※Total Max. Power = WLAN0 Max. Power + WLAN1 Max. Power + 3dBm

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 11 of 14
3.4 IEEE 802.11n HT40 Section:
Items Contents
Specification
IEEE802.11n HT20 @ 2.4G
IEEE802.11n HT20 @ 5G
Mode
BPSK, QPSK, 16QAM, 64QAM and OFDM
Channel
CH3 to CH11 @ 2.4G
CH38 to CH163 @ 5G
Data rate (MCS index)
MCS0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
1. Power Levels (Calibrated)
1) 12dBm Target (For Each antenna port) @ 2.4G
-
12.0
-
dBm
mcs7
2) 12dBm Target (For Each antenna port) @ 5G
-
12.0
-
dBm
mcs7
2. Spectrum Mask @ Target Power
1) at fc +/-21MHz
-
-
-20
dBr
2) at fc +/-40MHz
-
-
-28
dBr
3) at fc > +/-60MHz
-
-
-45
dBr
3. Constellation Error(EVM) @ Target Power
1) MCS0
-
-
-5
dB
2) MCS1
-
-
-10
dB
3) MCS2
-
-
-13
dB
4) MCS3
-
-
-16
dB
5) MCS4
-
-
-19
dB
6) MCS5
-
-
-22
dB
7) MCS6
-
-
-25
dB
8) MCS7
-
-
-28
dB
4. Frequency Error
1) IEEE802.11n HT20 @ 2.4G
-10
-
10
ppm
2) IEEE802.11n HT20 @ 5G
-10
-
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5. Minimum Input Level Sensitivity(each chain)
1) MCS0 (PER
≦
10%)
-
-
-79
dBm
2) MCS1 (PER
≦
10%)
-
-
-76
dBm
3) MCS2 (PER
≦
10%)
-
-
-74
dBm
4) MCS3 (PER
≦
10%)
-
-
-71
dBm
5) MCS4 (PER
≦
10%)
-
-
-67
dBm
6) MCS5 (PER
≦
10%)
-
-
-63
dBm
7) MCS6 (PER
≦
10%)
-
-
-62
dBm
8) MCS7 (PER
≦
10%)
-
-
-61
dBm
6. Maximum Input Level(PER
≦
10%)
1) IEEE802.11n HT20 @ 2.4G
-20
-
-
dBm
2) IEEE802.11n HT20 @ 5G
-20
-
-
dBm
Tolerance: +/-2dBm
※Total Max. Power = WLAN0 Max. Power + WLAN1 Max. Power + 3dBm

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 12 of 14
3.5 IEEE 802.11ac Section:
Items Contents
Specification
IEEE802.11ac
Mode
BPSK, QPSK, 16QAM, 64QAM ,256QAM and OFDM
Channel
CH36 to CH165 VHT20
CH38 to CH163 VHT40
CH42 to CH155 VHT80
Data rate (MCS index)
MCS0/1/2/3/4/5/6/7/8/9
TX Characteristics
Min.
Typ.
Max.
Unit
Remark
1. Power Levels (Calibrated)
1) 12dBm Target (20M For Each antenna port)
-
12.0
-
dBm
mcs7
2) 12dBm Target (40M For Each antenna port)
-
12.0
-
dBm
mcs7
3) 10dBm Target (80M For Each antenna port)
-
10.0
-
dBm
mcs7
2. Spectrum Mask @ Target Power
1) at fc +/-11MHz /20MHz/30MHz
-
-
-20
dBr
2) at fc +/-21MHz /40MHz/60MHz
-
-
-28
dBr
3) at fc +/-41MHz /80MHz/120MHz
-
-
-40
dBr
3. Constellation Error(EVM) @ Target Power
1) MCS0
-
-
-5
dB
2) MCS1
-
-
-10
dB
3) MCS2
-
-
-13
dB
4) MCS3
-
-
-16
dB
5) MCS4
-
-
-19
dB
6) MCS5
-
-
-22
dB
7) MCS6
-
-
-25
dB
8) MCS7
-
-
-27
dB
9) MCS8
-30
dB
10) MCS9
-32
dB
4. Frequency Error
-10
-
10
ppm
RX Characteristics
Min.
Typ.
Max.
Unit
5. Minimum Input Level Sensitivity(each chain)
VHT20
VHT40
VHT80
1) MCS0 (PER
≦
10%)
-
-
-82
-79
-76
dBm
2) MCS1 (PER
≦
10%)
-
-
-79
-76
-73
dBm
3) MCS2 (PER
≦
10%)
-
-
-77
-74
-71
dBm
4) MCS3 (PER
≦
10%)
-
-
-74
-71
-68
dBm
5) MCS4 (PER
≦
10%)
-
-
-70
-67
-64
dBm
6) MCS5 (PER
≦
10%)
-
-
-66
-63
-60
dBm
7) MCS6 (PER
≦
10%)
-
-
-65
-62
-59
dBm
8) MCS7 (PER
≦
10%)
-
-
-64
-61
-58
dBm
9) MCS8 (PER
≦
10%)
-
-
-59
-56
-53
dBm
10) MCS9 (PER
≦
10%)
-
-
-54
-51
dBm
6. Maximum Input Level(PER
≦
10%)
-30
-
-
dBm
Tolerance: +/-2dBm
※Total Max. Power = WLAN0 Max. Power + WLAN1 Max. Power + 3dBm

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 13 of 14
4. Wireless Specification
2.4G WiFi Specification(FCC Rule: FCC Part15.247)
Type of Modulation:
802.11b: DSSS (CCK, DQPSK, DBPSK)
802.11g: OFDM (64QAM, 16QAM, QPSK, BPSK)
802.11n (HT20/HT40): OFDM (64QAM, 16QAM, QPSK, BPSK)
Operating Frequency:
802.11b/g/n(HT20): 2412MHz to 2462MHz
802.11n(HT40): 2422MHz to 2452MHz
Channel Number:
802.11b/g/11n(HT20): 11 Channels
802.11n(HT40): 7 Channels
Channels Step:
Channels with 5MHz step
Bandwidth:
20MHz, 40MHz
Max Conducted Power:
14.84dBm
Peak Spectrum Density:
≤
8dBm
Spurious Emission:
Peak
≤
74dBuV/m
Average
≤
54dBuV/m
5G WiFi Specification(FCC Rule: FCC Part15.407)
Type of Modulation:
802.11a: OFDM(64QAM, 16QAM, QPSK, BPSK)
802.11n: OFDM (BPSK, QPSK, 16QAM, 64QAM)
802.11ac: OFDM (BPSK, QPSK, 16QAM, 64QAM, 256QAM)
Operating Frequency:
802.11b/g/n(HT20): 2412MHz to 2462MHz
802.11n(HT40): 2422MHz to 2452MHz
Channel Number:
802.11b/g/11n(HT20): 11 Channels
802.11n(HT40): 7 Channels
Channels Step:
Channels with 5MHz step
Operation Frequency:
Band Mode
Frequency
Range(MHz)
Number of
channels
UNII Band I
802.11a/n(HT20)/ac(HT20)
5180-5240
4
802.11n(HT40)/ac(HT40)
5190-5230
2
802.11ac(HT80)
5210
1
UNII Band
II-A
802.11a/n(HT20)/ac(HT20)
5260-5320
4
802.11n(HT40)/ac(HT40)
5270-5310
2
802.11ac(HT80)
5290
1
UNII Band
II-C
802.11a/n(HT20)/ac(HT20)
5500-5700
11
802.11n(HT40)/ac(HT40)
5510-5670
5
802.11ac(HT80)
5530,
5610MHz
2
UNII Band III
802.11a/n(HT20)/ac(HT20)
5745-5825
5
802.11n(HT40)/ac(HT40)
5755-5795
2
802.11ac(HT80)
5775
1
Bandwidth:
20MHz, 40MHz, 80MHz
Max Conducted Power:
14.96dBm
Peak Spectrum Density:
5.84dBm
Spurious Emission:
See test report
DFS Function:
Slave without radar detection

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 14 of 14
5.Software Requirements
The driver supports the following operating systems: Linux, Microsoft Windows XP, Vista and Win7.
Mfg. software tool is MP_Kit_RTL11ac_8822BU_USB_v0.57_20170322(BETA).
WF-R12B-UWD1 module has a 32-bit RISC MCU that handles Wi-Fi, and an ARM Cortex-R4 MCU that
could offload data frame processing in Wi-Fi host driver.
6. Refelow Standard Condition
Temperature rising zone: temperature: <150℃, time: 60～90 seconds, slope control between 1～
3℃/S.
Preheating constant temperature zone: temperature: 150℃～200℃, time:60-120 seconds, slope
between 0.3-0.8.
Reflow soldering zone: peak temperature 235 ℃~ 250 ℃(recommended peak temperature
<245 ℃), time 30-70 seconds.
Cooling zone: temperature: 217 ℃~ 170 ℃, slope between 3 ～5 ℃/ S.
The solder is tin-silver-copper alloy lead-free solder / Sn & Ag & Cu Lead-free solder (SAC305).

WF-R12B-UWD1
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 15 of 14
7、Packaging Information:
A) 产品放置方向、标签粘贴位置、包装按示意图进行
The direction of placement of the product, the location of the label and the packaging according to the schematic diagram
B) 真空包装内放入 2包2g 干燥剂和一张湿度卡
Place 2 packs of 2 g desiccant and 1 humidity card in vacuum pack
C) 产品数量每层 25 只，250 只/箱CC
Product quantity 25, 250 / box per floor ;
D) 外箱尺寸：240mm*385mm*140mm
Box size: 240mm * 385mm * 140mm;
E) 其它未尽事宜按照客户包装要求执行
Other outstanding matters performed according to customer packaging requirements.

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IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 16 of 14
8 FCC Statement
FCC regulatory compliance statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
This Module complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should
be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must
not be co-located or operating in conjunction with any other antenna or transmitter.
Labelling Instruction for Host Product Integrator
Please notice that if the FCC identification number is not visible when the module is installed inside another device, then
the outside of the device into which the module is installed must also display a label referring to the enclosed module. This
exterior label can use wording such as the following: “Contains FCC ID: 2AOKI-WFR12BUWD1” any similar wording that
expresses the same meaning may be used.
Installation Notice to Host Product Manufacturer
The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module.
The module is limited to installation in mobile application, a separate approval is required for all other operating
configurations, including portable configurations with respect to §2.1093 and difference antenna configurations.
Antenna Change Notice to Host manufacturer
If you desire to increase antenna gain and either change antenna type or use same antenna type certified, a Class II
permissive change application is required to be filed by us, or you (host manufacturer) can take responsibility through the
change in FCC ID (new application) procedure followed by a Class II permissive change application.
FCC other Parts, Part 15B Compliance Requirements for Host product manufacturer
This modular transmitter is only FCC authorized for the specific rule parts listed on our grant, host product manufacturer is
responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of
certification.
Host manufacturer in any case shall ensure host product which is installed and operating with the module is in compliant
with Part 15B requirements.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
5G band I (5150-5350MHz) indoor use only.

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IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 17 of 14
9 Federal Communication Commission Interference Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for
a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help. FCC Caution: Any changes or modifications not
expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This
transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
10.Conditions of use
Please keep the antenna away from metal and horn interference sources.

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IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 18 of 14
11.Antenna specification
The main difference between antennas is the cable length of the antennas. The antenna is installed in the plastic shell
or metal shell of the host along with the module.
Antenna
Project
Code
Antenna
Gain
(dBi)
Cable
Length
(Unit: cm)
Part No.
Walsin RF
Device
Metal
Antenna
2.4G WiFi
Ant1:
4.51dBi
Ant2:
4.93dBi
5G WiFi:
Ant1:
4.78dBi
Ant2:
4.94dBi
10cm RFMTA370610IMLB701
15cm RFMTA370615IMLB701
20cm RFMTA370620IMLB702
25cm RFMTA370625IMLB701
27cm RFMTA370627IMLB701
30cm RFMTA370630IMLB702
35cm RFMTA370635IMLB702
40cm RFMTA370640IMLB701
45cm RFMTA370645IMLB701
50cm RFMTA370650IMLB701
55cm RFMTA370655IMLB702
60cm RFMTA370660IMLB702

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IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module
Sichuan AI-Link Technology Co.,Ltd. page 19 of 14
12. Product label, label location
As shown in the figure below：