JB3DC-22Door Bell Transmitter

DC22 : Transmitter and receiver DC22 : Transmitter and receiver DC25: Transmitter and receiver

Operation Circuit Description Transmitter The transmitter is a single channel device. The center frequency determine on the C5 and the PCB loop. The PCB loop also had been an antenna. To adjusting the center frequency by moving C5 position. The transmitter consists of a digital encoder. It provided 256 combinations. The power of the transmitter provided by a 23A (12V) battery.

ADVANCED COMPLIANCE LABORATORY 6 Randolph Way Hillsborough, NJ 08876 Tel: (732) 560-9010 Fax: (732) 560-9173 ELECTROMAGNETIC EMISSION COMPLIANCE REPORT of Wireless Door Bell Transmitter MODEL: DC-22 / DC-23 /DC-25 (TX) FCC ID: JB3DC-22 October 01, 2001 This report concerns (check one): Original grant x Class II change Equipment type: LOW POWER TRANSMITTER Deferred grant requested per 47 CF 0.457(d)(1)(ii)? yes no x If yes, defer until: (date) Company agrees to notify the Commission by (date) of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? yes no x If no, assumed Part 15, Subpart B for unintentional radiators - the new 47 CFR [10-1-90 Edition] provision. Report prepared for: ABOL COMPANY LIMITED Report prepared by: Advanced Compliance Lab Report number: 0048-010925-02TX The test result in this report IS supported and covered by the NVLAP accreditation FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 2 Table of Contents Report Cover Page.........................................................................................................1 Table of Contents............................................................................................................2 Figures.............................................................................................................................3 1. GENERAL INFORMATION....................................................................................4 1.1 Verification of Compliance...........................................................................4 1.2 Equipment Modifications..............................................................................5 1.3 Product Information......................................................................................6 1.4 Test Methodology.........................................................................................6 1.5 Test Facility...................................................................................................6 1.6 Test Equipment.............................................................................................6 1.7 Statement of the Document Use...................................................................7 2. PRODUCT LABELING.............................................................................................8 3. SYSTEM TEST CONFIGURATION........................................................................9 3.1 Justification...................................................................................................9 3.2 Special Accessories.......................................................................................9 3.3 Configuration of Tested System...................................................................9 4. SYSTEM SCHEMATICS..........................................................................................12 5. RADIATED EMISSION DATA................................................................................13 5.1 Field Strength Calculation............................................................................13 5.2 Test Methods and Conditions......................................................................13 5.3 Test Data.......................................................................................................13 6. PHOTOS OF TESTED EUT......................................................................................16 FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 3 Figures Figure 2.1 FCCLabel.......................................................................................................8 Figure 2.2 Location of Label on Back of the EUT.........................................................8 Figure 3.1 Radiated Test Setup, Position 1...................................................................10 Figure 3.2 Radiated Test Setup, Position 2...................................................................10 Figure 3.3 Radiated Test Setup, Position 3...................................................................11 Figure 4.1 EUT Schematics............................................................................................12 FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 4 1. GENERAL INFORMATION 1.1 Verification of Compliance EUT: WIRELESS DOOR BELL TRANSMITTER Model: DC-22 / DC-23 / DC-25 (TX) Applicant: ABOL COMPANY LIMITED BLOCK C, 5/F. SUPERME INDUSTRIAL BLDG., 15-17 SHAN MEI STREET, FOTAN, SHATIN, N.T., HONG KONG Test Type: FCC Part 15C CERTIFICATION Result: PASS Tested by: ADVANCED COMPLIANCE LAB Test Date: October 01, 2001 Report Number: 0048-010925-02TX The above equipment was tested by Advanced Compliance Laboratory for compliance with the requirement set forth in the FCC rules and regulations Part 15, subpart C. This said equipment in the configuration described in the report, shows the maximum emission levels emanating from equipment are within the compliance requirements. The estimated uncertainty of the test result is given as following. The method of uncertainty calculation is provided in Advanced Compliance Lab. Doc. No. 0048-01-01. Prob. Dist. Uncertainty(dB) Uncertainty(dB) Uncertainty(dB) 30-1000MHz 1-6.5GHz Conducted Combined Std. Uncertainty u c norm. ±2.36 ±2.99 ±1.83 ____________________ Wei Li Date: October 01, 2001 Lab Manager Advanced Compliance Lab FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 5 1.2 Equipment Modifications N/A FCC ID: JB3DC-22 ———————————…

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FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 10 Figure 3.1 Radiated Test Setup, Position 1 Figure 3.2 Radiated Test Setup, Position 2 FCC ID: JB3DC-22 ——————————————————————————————————————————————— Advanced Compliance Lab 6 Randolph Way, Hillsborough, NJ 08844 Tel: (732) 560-9010 Fax: (732) 560-9173 11 Figure 3.3 Radiated Test Setup, Position 3