2AYWS-PUMP-TX4Remote Control

1 Manual Specifications: Product name: remote control Wide operating voltage range +2.6V~+3.6V Wide operating frequency range 433.92MHz The current consumption is less than 1uA in shutdown mode, and the current is less than  15mA in transmitting state. Antenna gain 0dB The output power can reach up to 13dBm Modulation method ASK Operating temperature range -15 °C～+60°C External crystal oscillator 13.560Mhz when working product description: remote control is a low-power, high-performance 433.92MHz short-range wireless communication transmitter circuit that supports ASK modulation. All of its tuning can be automatically completed in the WL4455 chip. Circuits such as PLL and power amplifier are integrated on-chip. The WL4455 integrates a PLL and power amplifier on-chip. The PLL provides a carrier signal for the transmitter. The operating frequency of the PLL in the WL4455 uses the local oscillator signal provided by the ring oscillator. A fixed frequency divider circuit is used in the loop. And built-in loop filter, the overall power consumption is controlled below 1uA in the standby state. The power amplifier amplifies the input signal with an open-drain output and an external choke inductor structure. The output adopts a π-type narrowband matching network to improve harmonic suppression and ensure that the output signal power is greater than 10dBm. changes or modifications not expressly approved by the party responsible for compliance could v oid the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, p ursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection ag ainst harmful interference in a residential installation. This equipment generates, uses and can ra diate radio frequency energy and, if not installed and used in accordance with the instructions, m ay cause harmful interference to radio communications. However, there is no guarantee that inte rference will not occur in a particular installation. If this equipment does cause harmful interferen ce 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 measur es: —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. 2 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.

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT -R21011824-1E1 Page 27 of 31 10 Photos of the EUT Model: TX4 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 28 of 31 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 29 of 31

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT -R21011824-1E1 Page 30 of 31 Model: TX4 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 31 of 31 END OF REPORT Antenna

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 1 of 28 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Fujian YuanHua Pump Industry Co., Ltd. Address : Taiwan Business Park, Huangtang Town, Hui'an County, Quanzhou, Fujian Equipment under Test : Remote Control Model No. : TX4 Trade Mark : / FCC ID : 2AYWS-PUMP-TX4 Manufacturer : Fujian YuanHua Pump Industry Co., Ltd. Address : Taiwan Business Park, Huangtang Town, Hui'an County, Quanzhou, Fujian ■Report No.: DDT-R21011824-1E1 ■Issued Date: Mar. 09, 2021 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 2 of 28 Table of Contents Test report declares........................................................................................................4 1 Summary of Test Results ............................................................................................... 6 2 General Test Information ............................................................................................... 7 2.1. Description of EUT ......................................................................................................... 7 2.2. Accessories of EUT ........................................................................................................ 7 2.3. Assistant equipment used for test .................................................................................. 7 2.4. Block diagram of EUT configuration for test .................................................................. 7 2.5. Deviations of test standard ............................................................................................. 7 2.6. Test environment conditions ......................................................................................... 8 2.7. Test laboratory................................................................................................................ 8 2.8. Measurement uncertainty ............................................................................................... 8 3 Equipment Used During Test ......................................................................................... 9 4 Duty Cycle .................................................................................................................... 11 4.1. Block diagram of test setup .......................................................................................... 11 4.2. Limits ............................................................................................................................ 11 4.3. Test procedure ............................................................................................................. 11 4.4. Test result ..................................................................................................................... 11 4.5. Original test data .......................................................................................................... 12 5 20 dB Bandwidth .......................................................................................................... 14 5.1. Block diagram of test setup .......................................................................................... 14 5.2. Limits ............................................................................................................................ 14 5.3. Test procedure ............................................................................................................. 14 5.4. Test result ..................................................................................................................... 14 5.5. Original test data .......................................................................................................... 15 6 Occupy Time ................................................................................................................ 16 6.1. Block diagram of test setup .......................................................................................... 16 6.2. Limits ............................................................................................................................ 16 6.3. Test procedure ............................................................................................................. 16 6.4. Test result ..................................................................................................................... 16 6.5. Original test data .......................................................................................................... 17 7 Radiated Emission ....................................................................................................... 18 7.1. Block diagram of test setup .......................................................................................... 18 7.2. Limit .............................................................................................................................. 19 7.3. Test procedure ............................................................................................................. 21 7.4. Test result ..................................................................................................................... 22 8 Power Line Conducted Emission ................................................................................. 26 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21011824-1E1 Page 3 of 28 8.1. Block diagram of test setup .......................................................................................... 26 8.2. Power line conducted emission limits .......................................................................... 26 8.3. Test procedure .......................................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT -R21011824-1E1 Page 26 of 31 9 Test Setup Photograph Model: TX4