NTTSX1123MMDS CPE unit

FCC ID Label and Label Location for Watkins-Johnson FCC ID: NTTSX1123 Watkins-Johnson SX1123 FCC ID: NTTSX1123 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 than may cause undesired operation

Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 EXHIBIT 6: RF Hazard Information Per Sec. 1.1307 For transmitters operating in the 2.5-2.7 GHz frequency range, paragraph 1.1310 limits maximum permissible exposure (MPE) to 1 mW/cm2 for uncontrolled environments, and 5 mW/cm2 for controlled environments. The maximum distance from the antenna at which MPE is met or exceeded is calculated from the equation relating field strength in V/m, transmit power in watts, transmit antenna gain, and separation distance in meters: E,V/m = (√(30*P*G))/dPower density, mW/m2 = E 2 /3770 E for MPE 1mW/m2 = 61.4 V/md, meters = (√(30*P*G))/61.4 Watkins Johnson does not provide an antenna with their MMDS radio system. The licensee is responsible for placing a label on the antenna providing adequate information regarding hazardous RF exposure ( such as the maximum distance at which MPE is achieved) and including reference to the applicable FCC regulations. MPE are calculated for a typical 24 dBi antenna: Watkins Johnson FCC ID: NTTSX1123 RF Hazard Distance Calculation Exposure, mW/cm2:1.00 Max RF PowerTX AntennaMPE P, dBmG, dBiSafe Distance, cm 26.024.089.2 Basis of Calculations: E^2/3770 = S, mW/cm2 E, V/m = (Pwatts*Ggain*30)^.5/d, meters d = ((Pwatts*G*30)/3770*S))^0.5 Pwatts*Ggain = 10^(PdBm-30+GdBi)/10) Refer to user manual RF Hazard information page for information to user and installer re FCC requirements concerning MPE, exposure from multiple sources, and other similar topics. Draft version of the warning label is found in separate attachment CPEwarning.doc. In addition, the following wording will be placed on the ODU in plain legible text: CAUTION: To comply with FCC RF exposure requirements, a minimum separation distance of 90 cm is required between this antenna and all persons.

RF Exposure Information Label Format for MMDS Subscriber Unit FCC ID: NTTSX1123 53/8” CAUTION : To comply with FCC RF exposure requirements, antennas used for this device must be installed to provide a separation distance of 90 cm from all persons to satisfy RF exposure compliance width: 0.5” Arial 10 point type (black) Material: mylar adhesive (clear) For antennas supplied by Watkins Johnson: Label will be placed on antenna by WJ For antennas supplied by others: This label drawing will be placed in the product user manual with instructions that the antenna installer must place this label on a visible external surface of the antenna .

Figure 1. BW=6 MHz input signal Input to ODU from IDU FCC ID: NTTSX1123

Watkins Johnson.FCC ID: NTTSX1123 page 1 of 23 EXHIBITS EXHIBIT 1:Letter Requesting Confidentiality under Sec. 0.457(d) EXHIBIT 2: Product Description and Operation Overview EXHIBIT 3:Information for which Confidentiality is Requested Schematics Block Diagrams Theory of Operation EXHIBIT 4:Product Photographs EXHIBIT 5:User Manual and FCC ID Label EXHIBIT 6:RF Hazard Information per Sec. 1.1307 EXHIBIT 7: Report of Measurements EXHIBIT 8: Data Graphs – Emissions Masks EXHIBIT 9: Data Graphs - Out of Band Emissions EXHIBIT 10: IF Card TX Signals to RF Module Watkins Johnson.FCC ID: NTTSX1123 page 2 of 23 EXHIBIT 1:Letter Requesting Confidentiality under Sec. 0.457(d) Watkins Johnson.FCC ID: NTTSX1123 page 3 of 23 Thomas N. CokeniasEMC &Radio Approvals Test & Consulting Services for Commercial, Military, International Compliance P.O. Box 1086 El Granada, CA 94018 23 June 2000 FCC Laboratory 7435 Oakland Mills Road Columbia, MD 21046 Attention: Application Examiner Reviewing Engineer Re: Request for confidentiality per Section 0.459 of FCC Rules Applicant: Watkins Johnson. FCC ID: NTTSX1123 To whom it may concern, Request is hereby submitted, on behalf of my client Watkins Johnson, to withhold from public review certain portions of the application for equipment certification for the referenced FCC identifier. In particular, the following sections of the application and report are requested to be kept confidential: Schematics Block diagrams Theory of operation (P2MP Architecture) Rationale for request for confidentiality: Watkins Johnson has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the confidential portions of this application to competitors would give them competitive advantage in developing similar products. The $135 fee for confidentiality has been submitted along with the fee for certification. If you have questions or need further information, please contact the undersigned. Sincerely, THOMAS N. COKENIAS EMC Consultant/Agent for Watkins Johnson. Tel 650 726 1263 fax 650 726 [email protected] Watkins Johnson.FCC ID: NTTSX1123 page 4 of 23 EXHIBIT 2:Product Description and Operation Overview Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 The Watkins Johnson FCC ID: NTTSX1123 is a MMDS transceiver operating under the provisions of Part 21 of the Rules. Model SX1123 is subscriber or customer premises equipment (CPE). Refer to the system module diagram below: Product development strategy is to follow a modular approach. Digital data I/O for the initial version of the system will be a line card that will fit into a standard Cisco router chassis. For test purposes, a Tektronix arbitrary waveform generator will simulate the signal output of the router/line card combination. The IDU IF card up-link performs the modulation functions of the system. A 330 MHz signal is modulated with the digital data stream using Orthogonal Frequency Division Multiplexing (OFDM) techniques. The system is capable of producing channel bandwidths in 1.5 MHz multiples. The system will be configurable for use with 1.5, 3, and 6 MHz channel bandwidths. For the down-link signal, the IF card demodulates the receiver IF signal from the RF head and routes the demodulated digital information to the digital I/O card. It is anticipated that the IDU IF card will be used with a number of different RF heads, but will provide the same kind of OFDM modulation, the same IF signals, and at the same channel spacing Digitaldata I/O ARB IDU IF Card RS 232 Cable PC Controller -48volts ODU RF Head RS 232 Cable Bias “T” Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 as will be provided for the present application. The IDU output RF spectrum is shown for 6 MHz channels in Exhibit 10. The bias “T” provides DC and the 330 MHz IF signal on a single coaxial cable for routing to the RF head. The ODU RF head produces the RF transmit link at 2150-2162 MHz , and houses the receiver LNAs, receiver local oscillator, and the receiver IF bandpass filters and IF amplifiers. The RF head also houses the TX-RF diplexer. The PC controller and RS 232 cables are for system control and set-up for testing purposes. The antenna shown in the diagram is specified but not supplied by WJ. Antennas are available in integral or separate mount varieties, either 18 dBi or 24 dBi. The –48 VDC supply shown in the diagram is a customer provided supply. SPECIFICATIONS RF Head Frequency range: 2150-2162 MHz Power output:26 dBm, 24 dBm, and 22 dBm Channel Bandwidth:1.5 MHz, 3 MHz, and 6 MHz configurable IF Head Frequency range:24 MHz clock, 48 MHz blanking, 330 MHz modulated carriers Power output:-13 dBm nominal (programmable) A detailed description of the theory of operation and product configuration is found in the attached document, rf hea~1.doc. Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 EXHIBIT 3:Information for which Confidentiality is Requested Schematics Block Diagrams Theory of Operations Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 Schematics - see separate attachment Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 Block Diagram - see separate attachment Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 Theory of Operation - see separate attachment: rf hea~1.doc Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 EXHIBIT 4: Product Photographs - see separate attachments Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 EXHIBIT 5:User Manual and FCC ID Label - see separate attachments Watkins Johnson.FCC ID: NTTSX1123 page 5 of 23 EXHIBIT 6: RF Hazard Information Per Sec. 1.1307 For transmitters operating in the 2.5-2.7 GHz frequency range, paragraph 1.1310 limits maximum permissible exposure (MPE) to 1 mW/cm2 for uncontrolled environments, and 5 mW/cm2 for controlled environments. The maximum distance from the antenna at which MPE is met or exceeded is calculated from the equation relating field strength in V/m, transmit power in watts, transmit antenna gain, and separation distance in m…

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