HSW-2410MModular 2.4 GHz Transceiver

WIT2410 2.4GHz Spread Spectrum Wireless Industrial Transceiver Integration Guide June 15, 1999 One Meca Way Norcross, Georgia 30093 www.digital-wireless.com (770) 564-5540 Note: This device has not been authorized as required by the rules of the Federal Communications Commission. This device is not, and may not be, offered for sale or lease, or sold or leased, until authorization is obtained. About This Manual This manual is designed to allow integration of the Digital Wireless Corporation WIT2410 OEM module into complete products. Care has been taken to try and make sure all of the information in this manual is accurate. However, specifications can change over time and Digital Wireless cannot guarantee the accuracy of this information. If you have any questions on any information in this manual, please contact Digital Wireless Technical Support at (770) 564-5540. TABLE OF CONTENTS 1. INTRODUCTION.................................................................................................................................. 1 1.1 Why Spread Spectrum?..................................................................................................................... 1 1.2 Frequency Hopping vs. Direct Sequence ......................................................................................... 2 2. RADIO OPERATION............................................................................................................................ 4 2.1. Synchronization and Registration ................................................................................................... 4 2.2. Data Transmission........................................................................................................................... 5 2.2.1. Point-to-Point ........................................................................................................................ 5 2.2.2. Point-to-Multipoint................................................................................................................ 6 2.2.3. TDMA Mode ......................................................................................................................... 6 2.2.4. CSMA Mode ......................................................................................................................... 8 2.2.5. Full Duplex Communication ................................................................................................. 8 2.2.6. Error-free Packet Transmission Using ARQ ......................................................................... 8 2.3. Modes of Operation......................................................................................................................... 9 2.3.1. Control and Data Modes........................................................................................................ 9 2.3.2. Sleep Mode .......................................................................................................................... 10 2.3.3. Low Power Mode and Duty Cycling................................................................................... 10 3. PROTOCOL MODES.......................................................................................................................... 11 3.1. Packet Formats .............................................................................................................................. 12 3.1.1. Data Packet .......................................................................................................................... 13 3.1.3. Connect Packet .................................................................................................................... 13 3.1.4. Disconnect Packet (base only, receive only) ...................................................................... 13 4. MODEM INTERFACE........................................................................................................................ 14 4.1. Interfacing to 5 Volt Systems........................................................................................................ 15 5. MODEM COMMANDS ...................................................................................................................... 16 5.1. Serial Commands .......................................................................................................................... 16 5.2. Network Commands...................................................................................................................... 17 5.3. Protocol Commands ...................................................................................................................... 19 5.4. Status Commands.......................................................................................................................... 21 5.5. Memory Commands...................................................................................................................... 22 5.6. Modem Command Summary ........................................................................................................ 23 6. WIT2410 DEVELOPER’S KIT........................................................................................................... 24 6.1. COM24.......................................................................................................................................... 24 6.2. Demonstration Procedure.............................................................................................................. 25 6.3. Troubleshooting ............................................................................................................................ 26 7. APPENDICES...................................................................................................................................... 28 7.1. Technical Specifications ............................................................................................................... 28 7.1.1.…

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FCC ID: HSW-2410M AGENCY AGREEMENT Federal Communications Commission Date: June 10 th , 1999 P.O. Box 429 Columbia, MD 21045 Gentlemen: I hereby appoint United States Technologies to act as our agent in the preparation of an application for equipment authorization of HSW-2410M under Part 15 of the FCC Rules and Regulations. I certify that Section 6 & 7 properly describe the device or system for which authorization is sought, that the information described in the User's Manual will be provided with each item manufactured or distributed by the applicant, and that the labels described by Section 3 will be affixed to each item manufactured or distributed by the applicant. I further certify that appropriate arrangements have been made to assure that production units of this equipment bearing the name and FCC IDENTIFIER listed in this application will continue to comply with the Commission's requirements. I further certify by signature below that no party (per 47 CFR 1.2002(b)) to the application is subject to a denial of Federal benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). This appointment also includes the authority to complete FCC Form 731 on our behalf and sign the application as an authorized agent. Name: Mark Tucker Signature: _______________________ Title: Sr. Systems Engineer Date: June 16 th , 1999 FCC ID: HSW-2410M CONFIDENTIALITY REQUEST Federal Communications Commission Date: June 10 th , 1999 Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: Digital Wireless Corporation respectfully requests confidentiality of certain materials provided with the submission of the WIT2410 under FCC ID: HSW-2410M in accordance with FCC Regulations 0.459. The confidentiality request applies to the schematics, theory of operation, and block diagrams contained in Sections 4 & 6. The WIT2410 has been developed at considerable effort and expense by Digital Wireless Corporation. These items are considered as Trade Secrets and therefore public access to the proprietary material could possible result in duplication of equipment that could severely damage the company's business advantage. I appreciate your assistance in this matter. Sincerely, Name: Mark TuckerSignature: _____________ Title: Senior Systems Engineer Date: June 16 th 1999

FCC ID: HSW-2410M SECTION 3 LABELING INFORMATION FCC ID: HSW-2410M DIGITAL WIRELESS CORP. FCC ID: HSW-2410M.. MODEL: WIT2410M 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 Label Placed Here

FCC ID: HSW-2410M PHOTOS OF THE TESTED EUT The following photos are attached: Photo 1.EUT, 3 Dimensional Front View Photo 2.EUT, 3 Dimensional Rear View Photo 3.EUT, Top View with Cover Opened Photo 4.EUT, Top View of Board Photo 5.EUT, Bottom View of Board Photo 6.Antenna, ACE Dipole (M/N ACE-2400NF) Photo 7.Antenna, Cushcraft 14 dBi Yagi (M/N PC2415-RTNF) Photo 8.Antenna, Mobile Mark 6 dBi Omnidirectional (M/N OD6-2400-RTNC) Photo 9.Antenna, Mobile Mark 12 dBi Omnidirectional (M/N OD6-2400-RTNC) Photo 10.Antenna, Mobile Mark 14 dBi Corner Reflector, Front View (M/N SCR14- 2400PTA-RTNC) Photo 11.Antenna, Mobile Mark 14 dBi Corner Reflector, Rear View (M/N SCR14- 2400PTA-RTNC) Photo 12.Antenna, Mobile Mark Patch (M/N P7-2400RTNC) Photo 13.Antenna, Digital Wireless Corporation Patch, Front View (M/N PA2410) Photo 14. Antenna, Digital Wireless Corporation Patch, Rear View (M/N PA2410) FCC ID: HSW-2410M Photo 1.EUT, 3 Dimensional Front View FCC ID: HSW-2410M Photo 2.EUT, 3 Dimensional Rear View FCC ID: HSW-2410M Photo 3.EUT, Top View with Cover Opened FCC ID: HSW-2410M Photo 4.EUT, Top View of Board FCC ID: HSW-2410M Photo 5.EUT, Bottom View of Board FCC ID: HSW-2410M Photo 6.Antenna, ACE Dipole (M/N ACE-2400NF) FCC ID: HSW-2410M Photo 7.Antenna, Cushcraft 14 dBi Yagi (M/N PC2415-RTNF) FCC ID: HSW-2410M Photo 8.Antenna, Mobile Mark 6 dBi Omnidirectional (M/N OD6-2400-RTNC) FCC ID: HSW-2410M Photo 9.Antenna, Mobile Mark 12 dBi Omnidirectional (M/N OD6-2400-RTNC) FCC ID: HSW-2410M Photo 10.Antenna, Mobile Mark 14 dBi Corner Reflector, Front View (M/N SCR14-2400PTA-RTNC) FCC ID: HSW-2410M Photo 11. Antenna, Mobile Mark 14 dBi Corner Reflector, Rear View (M/N SCR14-2400PTA-RTNC) FCC ID: HSW-2410M Photo 12.Antenna, Mobile Mark Patch (M/N P7-2400RTNC) FCC ID: HSW-2410M Photo 13.Antenna, Digital Wireless Corporation Patch, Front View (M/N PA2410) FCC ID: HSW-2410M Photo 14.Antenna, Digital Wireless Corporation Patch, Rear View (M/N PA2410)

MEASUREMENT/TECHNICAL REPORT COMPANY NAME:Digital Wireless Corporation MODEL:WIT2410 FCC ID:HSW-2410M DATE:July 12, 1999 This report concerns (check one): Original grant X Class II change_____ Equipment type: Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? yes_____ No X If yes, defer until:_________________ date N.A. agrees to notify the Commission by N.A. date of the intended date of announcement of the product so that the grant can be issued on that date. Report prepared by: United States Technologies, Inc. 3505 Francis Circle Alpharetta, GA 30004 Phone Number: (770) 740-0717 Fax Number: (770) 740-1508 FCC ID: HSW-2410M TABLE OF CONTENTS LETTER OF CONFIDENTIALITY SECTION 1 GENERAL INFORMATION 1.1 Product Description 1.2 Related Submittal(s) SECTION 2 TESTS AND MEASUREMENTS 2.1 Configuration of Tested EUT 2.2 Test Facility 2.3 Test Equipment 2.4 Modifications 2.5 Test Procedure and Results 2.6 Antenna Description 2.7 Peak Power (Antenna Conducted at Antenna Terminal) 2.8 Antenna Conducted Spurious Emissions 2.9 Peak Radiated Spurious Emissions 2.10 Average Radiated Spurious Emissions 2.11 Minimum 20 dB Bandwidth 2.12 Number of Hopping Channels 2.13 Processing Gain 2.14 Average Time of Occupancy per Channel 2.15 Power Line Conducted Emissions for Transmitter 2.15 Radiated Emissions for Digital Device & Receiver (if Applicable) 2.16 Power Line Conducted for Digital Device & Receiver (if Applicable) SECTION 3 LABELING INFORMATION SECTION 4 BLOCK DIAGRAM(S)/ SCHEMATIC(S) SECTION 5 PHOTOGRAPHS SECTION 6 THEORY OF OPERATION SECTION 7 USER'S MANUAL FCC ID: HSW-2410M LIST OF FIGURES AND TABLES FIGURES 1)Test Configuration 2) Photograph(s) for Spurious and Conducted Emissions 3) Peak Output Power 4) Conducted Spurious Emissions 5) Peak Radiated Spurious Emissions 6) 20 dB Bandwidth 7) Number of Hopping Channels TABLES 1)EUT and Peripherals 2) Test Instruments 3) Peak Power Output 4) Peak Radiated Spurious Emissions 5) Average Radiated Spurious Emissions 6) 20 dB Bandwidth 7) Number of Hopping Channels 8) Conducted Emissions 9) Radiated Emissions for Digital Device and Receiver FCC ID: HSW-2410M SECTION 1 GENERAL INFORMATION FCC ID: HSW-2410M GENERAL INFORMATION 1.1Product Description The Equipment Under Test (EUT) is a Digital Wireless Corporation, Model WIT2410 modular 2.4 GHz spread spectrum transceiver. The EUT will be used with one of seven different antennas. FCC ID: HSW-2410M 1.2Related Submittal(s)/Grant(s) The EUT will be used to send/receive data. The transceiver presented in this report will be used with other like transceivers: The EUT is subject to the following authorizations: a) Certification as a transceiver (modular approval) b) Verification as a digital device The information contained in this report is presented for the certification & verification authorization(s) for the EUT. The manufacturer desires to seek a modular approval on this device. FCC ID: HSW-2410M SECTION 2 TESTS AND MEASUREMENTS FCC ID: HSW-2410M TEST AND MEASUREMENTS 2.1 Configuration of Tested System The sample was tested per ANSI C63.4, Methods of Measurement from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz (1992). Conducted and radiated emissions data were taken with the test receiver or spectrum analyzer's resolution bandwidth adjusted to 9 kHz and 120 kHz, respectively. All measurements are peak unless stated otherwise. The video filter associated with the spectrum analyzer was off throughout the evaluation process. Interconnecting cables were manipulated as necessary to maximize emissions. Interconnecting cables were manipulated as necessary to maximize emissions. A block diagram of the tested system is shown in Figure 1. Test configuration photographs for spurious and fundamental emissions are shown in Figure 2. The sample used for testing was received by U.S. Technologies on April 23 in good condition. 2.2 Test Facility Testing was performed at US Tech's measurement facility at 3505 Francis Circle, Alpharetta, GA. This site has been fully described and submitted to the FCC, and accepted in their letter marked 31040/SIT. Additionally this site has also been fully described and submitted to Industry Canada (IC), and has been approved under file number IC2982. 2.3 Test Equipment Table 2 describes test equipment used to evaluate this product. 2.4 Modifications No modifications were made by US Tech, to bring the EUT into compliance with FCC Part 15, Class B Limits for the transmitter portion of the EUT or the Class B Digital Device Requirements. FCC ID: HSW-2410M FIGURE 1 TEST CONFIGURATION EUT Antenna Controller AC Adapter Lap Top Computer 6’S 2 M U 120 VAC 60 Hz 2’ U Varied from 7” S to 4’ S 6’ U 120 VAC 60 Hz Direct Plug-in FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2a – 2I Photographs have been provided in separate files FCC ID: HSW-2410M TABLE 1 Test Date:April 23, 1999-April 29, 1999 UST Project:99-317 Customer:Digital Wireless Model:WIT 2410M EUT and Peripherals PERIPHERAL MANU. MODEL NUMBER SERIAL NUMBER FCC ID:CABLES P/D (EUT) Digital Wireless Corporation WIT 2410M00239HSW-2410M2’U AntennaVarious, see antenna descriptions NoneVaried from 7” S to 4’ S AC Adapter CUI Stack DV-12800695None120 VAC 60 Hz Direct Plug-in Controller Digital Wireless Corporation DWCNoneNone6’ U Lap Top Computer LTE Elite 4/75CX6520HFJ6F406CNT75MB1CB2m U 120 VAC Hz Power Cord FCC ID: HSW-2410M TABLE 2 TEST INSTRUMENTS TYPEMANUFACTURERMODELSN. SPECTRUM ANALYZERHEWLETT-PACKARD8593E3205A00124 SPECTRUM ANALYZERHEWLETT-PACKARD8558B2332A09900 S A DISPLAYHEWLETT-PACKARD853A2404A02387 COMB GENERATORHEWLETT-PACKARD8406A1632A01519 RF PREAMPHEWLETT-PACKARD8447D1937A03355 RF PREAMPHEWLETT-PACKARD8449B3008A00480 HORN ANTENNAEMCO31153723 HORN ANTENNAEMCO31169505-2255 BICONICAL ANTENNAEMCO31109307-1431 LOG PERIODIC ANTENNA EMCO31469110-3600 BILOGCHASECBL6112A2238 LISNSOLAR ELE.8012865577 LISNSOLAR ELE.8028910494 LISNSOLAR E…

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FCC ID: HSW-2410M 2.10 Average Spurious Emission in the Frequency Range 30 - 25000 MHz (FCC Section 15.247(c)) The results of average radiated spurious emissions falling within restricted bands are given in Table 5a – 5g. Due to the functionality of the transmitter and the complexity of the test setup in order to measure worse case duty cycle, Digital Wireless provided an explanation of the worse case duty cycle of the transmitter (provided on the following pages). FCC ID: HSW-2410M Worst Case Transmit Duty Cycle for WIT2410 The duty cycle de-rating factor used in the calculation of average radiated limits (per 15.209) is described below. This factor was calculated by first determining the worst case scenario for system operation - worst case being defined as the scenario when the WIT2410 would be transmitting the longest period during a dwell. This worst case operating scenario is as follows: 1)point-to-point operation (only two units communicating with one another) 2)data flow is almost completely unidirectional (that is, one radio is relaying a large amount of data to the other radio with only synchronization data being passed back the other direction) 3)The amount of data being fed to the sending radio is exactly portioned out to fit the maximum packet size allowable (280 bytes). The radio cannot send more than 280 bytes on a single channel – additional data must be sent on the next hop. For this example, a remote unit is transferring a large data file to a base unit. Maximum transmit time by Remote on a single channel: = 280 bytes * 8 bits/byte * (1/460.8Kbps) = 4.86ms The minimum hop duration for this scenario would be 6.94ms. Given that we have 75 channels in our hop set, it takes 521ms to go through the entire hop table and repeat a transmission on the same channel. Therefore, only 4.86milliseconds worth of data can be transmitted on a single channel in any 100ms time period. The transmission duty cycle correction factor is then calculated as: 20 * Log 10 (4.86ms/100ms) = -26.3 dB FCC ID: HSW-2410M Table 5A. AVERAGE RADIATED SPURIOUS EMISSIONS (Low End) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20450-76.1634.536.97.8 113.4500 Table 5A. AVERAGE RADIATED SPURIOUS EMISSIONS (Middle) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87105-87.7534.334.7 8.124.3500 7.30700-77.6534.637.27.998..0500 Table 5A. AVERAGE RADIATED SPURIOUS EMISSIONS (High End) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93995-85.0534.334.88.234.3500 7.41055-80.4334.637.4 7.9 73.1500 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-76.16 – 34.5 + 36.9 + 7.8 + 107)/20) = 113.4 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 5B. AVERAGE RADIATED SPURIOUS EMISSIONS (Low End) DWC 3dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20465-78.2534.537.07.889.1500 Table 5B. AVERAGE RADIATED SPURIOUS EMISSIONS (Middle) DWC 3 dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87105-93.0834.334.78.113.1500 7.30710-80.4234.637.27.971.2500 Table 5B. AVERAGE RADIATED SPURIOUS EMISSIONS (High End) DWC 3 dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93980-87.6134.334.88.225.5500 7.41055-81.6134.637.4 7.9 62.7500 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-78.25 – 34.5 + 37.0 + 7.8 + 107)/20) = 89.1 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 5C. AVERAGE SPURIOUS EMISSIONS (Low End) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.80356-86.1834.334.67.928.2500 7.20459-78.1934.537.07.889.7500 Table 5C. AVERAGE RADIATED SPURIOUS EMISSIONS (Middle) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87210-84.7534.334.78.134.3500 7.30720-79.3534.537.07.878.6500 Table 5C. AVERAGE RADIATED SPURIOUS EMISSIONS (High End) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93960-86.0334.334.88.230.6500 7.40930-77.6534.637.4 7.9 100.6500 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-86.18 - 34.3 + 34.6 + 7.9 + 107)/20) = 28.2 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 5D. AVERAGE RADIATED SPURIOUS EMISSIONS (Low End) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20585-79.4434.537.07.877.7500 Table 5D. AVERAGE RADIATED SPURIOUS EMISSIONS (Middle) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87200-85.6134.334.78.131.1500 7.30735-82.0234.637.27.959.3500 Table 5D. AVERAGE RADIATED SPURIOUS EMISSIONS (High End) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93970-91.2934.334.88.216.7500 7.40950-80.8434.637.4 7.9 69.7500 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-79.44 - 34.5 + 37.0 + 7.8 + 107)/20) = 77.7 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 5E. AVERAGE RADIATED SPURIOUS EMISSIONS (Low End) 12dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Los…

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FCC ID: HSW-2410M 2.9Peak Radiated Spurious Emission in the Frequency Range 30 -25000 MHz (FCC Section 15.247(c)) The EUT was hop-stopped and when possible placed into a continuous transmit mode of operation. A preliminary scan was performed on the EUT to determine frequencies that were caused by the transmitter portion of the product. Significant emissions that fell within restricted bands were then measured on an OAT’s site. Radiated measurements below 1 GHz were tested with a RBW = 120 kHz. Radiated measurements above 1 GHz were measured using a RBW = VBW = 1 MHz. The results of peak radiated spurious emissions falling within restricted bands are given in Table 4a –4g and Figure 5a – Figure 5ai. FCC ID: HSW-2410M Table 4A. PEAK RADIATED SPURIOUS EMISSIONS (Low End) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20450-49.8634.536.97.8 2341.55000 Table 4A. PEAK RADIATED SPURIOUS EMISSIONS (Middle) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87105-61.4534.334.7 8.1501.75000 7.30700-51.3534.637.27.92024.35000 Table 4A. PEAK RADIATED SPURIOUS EMISSIONS (High End) Ace Dipole Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93995-58.7534.334.88.2707.85000 7.41055-54.1334.637.4 7.9 1508.95000 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-49.86 – 34.5 + 36.9 + 7.8 + 107)/20) = 2341.5 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 4B. PEAK RADIATED SPURIOUS EMISSIONS (Low End) DWC 3dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20465-51.9534.537.07.81840.85000 Table 4B. PEAK RADIATED SPURIOUS EMISSIONS (Middle) DWC 3 dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87105-66.7834.334.78.1271.65000 7.30710-54.1234.637.27.91471.65000 Table 4B. PEAK RADIATED SPURIOUS EMISSIONS (High End) DWC 3 dBi Patch Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93980-61.3134.334.88.2527.15000 7.41055-55.4634.637.4 7.9 1294.75000 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-51.95 – 34.5 + 37.0 + 7.8 + 107)/20) = 1840.8 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 4C. PEAK RADIATED SPURIOUS EMISSIONS (Low End) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.80356-59.8834.334.67.9581.85000 7.20459-51.8934.537.07.81853.65000 Table 4C. PEAK RADIATED SPURIOUS EMISSIONS (Middle) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87210-58.4534.334.78.1709.05000 7.30720-53.0534.637.27.91664.55000 Table 4C. PEAK RADIATED SPURIOUS EMISSIONS (High End) Mobile Mark Patch Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93960-59.7334.334.88.2632.15000 7.40930-51.3534.637.4 7.9 2077.45000 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-59.88 - 34.3 + 34.6 + 7.9 + 107)/20) = 581.8 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 4D. PEAK RADIATED SPURIOUS EMISSIONS (Low End) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20585-53.1434.537.07.81605.55000 Table 4D. PEAK RADIATED SPURIOUS EMISSIONS (Middle) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87200-59.3134.334.78.1642.15000 7.30735-55.7234.637.27.91224.15000 Table 4D. PEAK RADIATED SPURIOUS EMISSIONS (High End) 6dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93970-64.9934.334.88.2345.05000 7.40950-54.5434.637.4 7.9 1438.95000 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-53.14 - 34.5 + 37.0 + 7.8 + 107)/20) = 1605.5 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 4E. PEAK RADIATED SPURIOUS EMISSIONS (Low End) 12dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20570-54.7934.537.07.81327.85000 Table 4E. PEAK RADIATED SPURIOUS EMISSIONS (Middle) 12dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87145-57.1034.334.78.1828.05000 7.30840-55.6334.637.27.91237.25000 Table 4E. PEAK RADIATED SPURIOUS EMISSIONS (High End) 12dB OMNI Antenna Freq. (GHz) Test Data* (dBm) @3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.93980-66.8034.334.88.2280.15000 7.41025-52.4834.637.4 7.9 1824.45000 SAMPLE CALCULATION: RESULTS (uV/m @ 3m) = Antilog ((-54.79 - 34.5 + 37.0 + 7.8 + 107)/20) = 1327.8 CONVERSION FROM dBm TO dBuV = 107 dB Tester Signature: Name: Roger Bowen FCC ID: HSW-2410M Table 4F. PEAK RADIATED SPURIOUS EMISSIONS (Low End) 14dBi Corner Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 7.20465-50.5834.537.07.82155.35000 Table 4F. PEAK RADIATED SPURIOUS EMISSIONS (Middle) 14dBi Corner Antenna Freq. (GHz) Test Data* (dBm) @ 3m Amp. Gain (dB) Antenna Factor (dB) Cable Loss (dB) Results (uV/m) 3m FCC Limits (uV/m) 4.87250-59.8634.334.78.1602.95000 7.30815-53.3134.637.27.91615.85000 Table…

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FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2a Photograph(s) for Spurious and Fundamental Emissions (Ace Dipole) FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2b Photograph(s) for Spurious and Fundamental Emissions (6 dBi Omni) FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2c Photograph(s) for Spurious and Fundamental Emissions (12 dBi Omni)

FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2d Photograph(s) for Spurious and Fundamental Emissions (14 dBi Corner Reflector) FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2e Photograph(s) for Spurious and Fundamental Emissions (DWC Patch) FCC ID: HSW-2410M Test Date:April 29, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Model:WIT2410 FIGURE 2f Photograph(s) for Spurious and Fundamental Emissions (Mobile Mark Patch) FCC ID: HSW-2410M Test Date:April 23, 1999 UST Project:99-317 Customer:Digital Wireless Corporation Mo…

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