TWW-50520ATransmitter

The EUT has three oscillators, as shown in Figure 1 Associated with the NEC uPD78F138H Microcontroller are: ?4.9152 MHz main operating frequency ?32 kHz for time-of-day ?There is no signal path. The oscillators are within the microcontroller chip. The clocks do not extend to other circuitry. Associated with the Micrel RF505 Transceiver are: ?16 MHz crystal oscillator. ?The frequency synthesizer is contained within the RF505. ?The RF505 is a “zero-IF” type transceiver, i.e., there is no external 10.8 MHz or 455 kHz IF strip. ?The only signal path that extends from the RF505 is the 902 to 928 MHz signal to/from the antenna. Block Diagram Oscillators Figure 1 4.9152 MHz 32 kHz Microcontroller Radio Transceiver 902 to 928 MHz 16.0 MHz

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Report No. SC502203-08 Page 1 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 MEASUREMENT AND TECHNICAL REPORT MAKAGO ELECTRONICS INCORPORATED 16980 Via Tazan, Suite 140 San Diego, CA 92127 DATE: 13 May 2005 This Report Concerns: Original Grant: X Class II Change: Equipment Type: Ultimate RF Scale Transceiver Board Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes: Defer until: No: X Company Name agrees to notify the Commission by: N/A 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* (*) FCC Part 15, Paragraph(s) 15.109(a), 15.209(a), and 15.249(a) Report Prepared by: TÜV AMERICA, INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone: 858 678 1400 Fax: 858 546 0364 Report No. SC502203-08 Page 2 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 TABLE OF CONTENTS Pages 1.0 GENERAL INFORMATION 3 1.1 Product Description 3 1.2 Related Submittal Grant 3 1.3 Tested System Details 3 1.4 Test Methodology 3 1.5 Test Facility 3 2.0 SYSTEM TEST CONFIGURATION 4 2.1 Justification 4 2.2 EUT Exercise Software 4 2.3 Special Accessories 4 2.4 Equipment Modifications 4 2.5 Configuration of Test System 4 3.0 RECEIVER SPURIOUS EMISSIONS EQUIPMENT/DATA RADIATED EMISSIONS EQUIPMENT/DATA RADIATED SPURIOUS EMISSIONS EQUIPMENT/DATA 5 - 7 4.0 ATTESTATION STATEMENT 8 Report No. SC502203-08 Page 3 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 1.0 GENERAL INFORMATION 1.1 Product Description None 1.2 Related Submittal Grant None 1.3 Tested System Details The FCC ID’s for all equipment, plus descriptions of all cables used in the tested system are: None 1.4 Test Methodology Purpose of Test: To demonstrate compliance with the following tests. Test Summary Summary of Results Test Description Paragraph Number Low Channel Mid Channel High Channel Pass/Fail Radiated Fundamental Field Strength 15.249(a) 93.82 dBμV/m pk 90.8 dBμV/m av 92.98 dBμV/m pk 91.6 dBμV/m av 94.51 dBμV/m pk* 91.1 dBμV/m av Pass Radiated Spurious Emissions (30 MHz to 10 GHz) 15.249(a)/ 15.209(a) -0.86 dB @ 1806 MHz -0.79 dB @ 1830 MHz -0.96 dB @ 1849 MHz Pass Receiver Spurious Emissions 15.109(a) No emissions detected No emissions detected No emissions detected Pass (*) Quasi Peak results indicate level at 93.7 dBuV/m. Testing was performed according to the procedures in FCC/ANSI C63.4 and CSA 108.8-M1983. 1.5 Test Facility The open area test site and conducted measurement data were tested by: TÜV AMERICA, INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone: 858 678 1400 Fax: 858 546 0364 The Test Site Data and performance comply with ANSI C63.4 and are registered with the FCC, 7435 Oakland Mills Road, Columbia Maryland 21046. All Measurement Data is acquired according to the content of FCC Measurement Procedure and ANSI C63.4, unless supplemented with additional requirements as noted in the test report. Report No. SC502203-08 Page 4 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 2.0 SYSTEM TEST CONFIGURATION 2.1 Justification The EUT was initially tested for FCC emissions in the following configuration: See Test Setup Photos Exhibit 2.2 EUT Exercise Software None 2.3 Special Accessories None 2.4 Equipment Modifications None 2.5 Configuration of Test System See Test Setup Photos Exhibit Report No. SC502203-08 Page 5 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 3.0 RECEIVER SPURIOUS EMISSIONS EQUIPMENT/DATA RADIATED EMISSIONS EQUIPMENT/DATA RADIATED SPURIOUS EMISSIONS EQUIPMENT/DATA Test Conditions: RECEIVER SPURIOUS EMISSIONS: FCC Part 15.109(a) RADIATED EMISSIONS: FCC Part 15.209(a) RADIATED SPURIOUS EMISSIONS: FCC Part 15.249(a) The following measurements were performed at the San Diego Testing Facility: † - Test not applicable „ - Roof (Small Open Area Test Site) „ - Canyon #1 (10- and 30-Meter Open Area Test Site), Carroll Canyon, San Diego Test Equipment Used: Model No. Prop. No. Description Manufacturer Serial No. Date Cal’ed E4440A 7500 Spectrum Analyzer Hewlett Packard MY4336216812/04 8566B 744 Spectrum Analyzer Hewlett Packard 2618A02913 02/05 AMF-5D-010180-35- 10P 719 Preamplifier Miteq 549460 VBU* FF6548-2 877 2000 MHz High Pass Filter Sage 005 VBU* FF6549-1 783 900 MHz High Pass Filter Sage 008 VBU* 3115 251 Double Ridge Guide Antenna EMCO 2495 VBU* 3146 244 Log Periodic Dipole Antenna EMCO 1063 07/04 Remarks: One year calibration cycle for all test equipment and sites. (*) Verified Before Use. Report No. SC502203-08 Page 6 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 Report No. SC502203-08 Page 7 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 Report No. SC502203-08 4.0 ATTESTATION STATEMENT GENERAL REMARKS: EUT’s transmit and receive is on the same frequency. Results indicated are for both modes. SUMMARY: All tests were performed per CFR 47, Part(s) 15.109(a), 15.209(a), and 15.249(a) „ - Performed The Equipment Under Test „ - Fulfills the requirements of CFR 47, Part(s) 15.109(a), 15.209(a), and 15.249(a) Testing Start Date: 11 May 2005 Testing End Date: 11 May 2005 - TÜV AMERICA, INC. - Responsible Engineer: David Gray (EMC Engineer) Page 8 of 8 Rev.No 1.0 TÜV AMERICA INC 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 678 1400 FAX 858 546 0364 Summary These test show that changing from SMA connector to reverse SMA connector will (if anything) very slightly reduce the output power. Test Setup The normal SMA connector is shown on the left. The reverse SMA connector is shown on the right. The two antennas wires are the same length, 3.25. The reverse SMA connectors antenna w…

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