OZNABS3000PCSPCS Fixed Wireless Base Station

&KDSWHU 8VHUV0DQXDOV $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU 8VHUV0DQXDOV A users manual has not been included within this Type Acceptance Application. The FWAN PCS Base Station is delivered, installed, and maintained by AT&T and/or authorized personnel. %DVH6WDWLRQ%3&6 )&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY

No user's manual is needed, due to the equipment being installed by authorized personnel.

$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\ 8VHSXUVXDQWWR&RPSDQ\LQVWUXFWLRQV  5HYLVLRQ  AT&T Wireless Services, Inc. Fixed Wireless Services P.O. Box 97059 Redmond, WA 98073-9759 %DVH6WDWLRQ%%3&6' )&&7\SH$FFHSWDQFH$SSOLFDWLRQ %DVH6WDWLRQ %3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY © 1995-2001 AT&T Wireless All rights reserved. For additional copies of this document, please contact: $77:LUHOHVV 32%R[ 5HGPRQG':$ 7HOHSKRQH $VNIRU%DVH6WDWLRQ %3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQRU  &RQWHQWV $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\ LLL 5HY &RQWHQWV &RQWHQWV LLL /LVWRI)LJXUHV L[ /LVWRI7DEOHV [Y &KDSWHU $WWHVWDWLRQ6WDWHPHQWV &KDSWHU %ORFN'LDJUDPV  %ORFN'LDJUDPV  &ORFN)UHTXHQFLHV &KDSWHU &RYHU/HWWHUV  ):$13&6%DVH6WDWLRQ²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…

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&KDSWHU &RYHU/HWWHUV $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU &RYHU/HWWHUV 2YHUYLHZ This section describes functional product interaction with other products pending FCC approval. &RQWHQWV 3.1FWAN PCS Base Station—System-Dependent Products . . . . . . . . 3-32 %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  ):$13&6%DVH6WDWLRQ²6\VWHP'HSHQGHQW3URGXFWV This unit, the FWAN PCS Base Station, comprises the second half of the FWAN PCS System. Currently, the R3 PCS has undergone FCC evaluation for certified FCC Type Approval and, per the Grant of Equipment Authorization, was assigned the following FCC Identifier: OF2PCSR30. The Remote Unit is located at remote residences and in concert with the FWAN PCS Base Station completes the FWAN PCS System. This application for FWAN PCS Base Station Type Approval is for a Class A commercial product that will function in concert with the aforementioned Remote Unit to complete the FWAN PCS System, providing wireless loop service. This system operates in the PCS Spectrum Band D and can communicate with the following products: • Remote Unit 2 PCS, FCC I.D. OF2CLRUDD3AXX • Remote Unit 3 PCS, FCC I.D. OF2PCSR30

&KDSWHU ([WHUQDO3KRWRJUDSKV $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ([WHUQDO3KRWRJUDSKV 2YHUYLHZ This section contains external photographs of the FWAN PCS Base Station. &RQWHQWV 4.1External Photographs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34 %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  ([WHUQDO3KRWRJUDSKV The front view of the FWAN PCS Base Station shows internal access via a single door. There are independent casters for additional mobility. )LJXUH  )URQW &RUQHU 9LHZ RI WKH ):$1 3&6 %DVH 6WDWLRQ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ([WHUQDO3KRWRJUDSKV The FWAN PCS Base Station, as shown in Figure 4.2, places both digital and RF functionality in a single cabinet at various installations. Each cabinet is independently powered with circuit breaker protection and air-moving devices. )LJXUH  2SHQ 'RRUV )URQW 9LHZ RI ):$1 3&6 %DVH 6WDWLRQ %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY The interconnecting backplane cabling is shown in Figure 4.3. )LJXUH  2SHQ 3DQHOV %DFN 9LHZ RI WKH ):$1 3&6 %DVH 6WDWLRQ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ([WHUQDO3KRWRJUDSKV The back of the FWAN PCS Base Station cabinet contains airflow ventilation as shown in Figure 4.4. )LJXUH  %DFN 9LHZ RI WKH ):$1 3&6 %DVH 6WDWLRQ %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY T hi s page left blank intentionally.

&KDSWHU ,'/DEHO/RFDWLRQ,QIRUPDWLRQ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,'/DEHO/RFDWLRQ,QIRUPDWLRQ 2YHUYLHZ This section contains information about the content and placement of the FCC label for the FWAN PCS Base Station. &RQWHQWV 5.1ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40 5.2Location Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41 %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  ,'/DEHO )LJXUH  6DPSOH )&& ,' /DEHO $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,'/DEHO/RFDWLRQ,QIRUPDWLRQ  /RFDWLRQ,QIRUPDWLRQ )LJXUH  )&& &RPSOLDQFH /DEHO²3RVVLEOH ([WHULRU /RFDWLRQ= 5) &DELQHW %DFN %DVH6WDWLRQ%3&6!)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY T hi s page left blank intentionally.

Base Station (B1.8 PCS) FCC Type Acceptance Application 5-40 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 5.1 ID Label Figure 5.1Sample FCC ID Label

&KDSWHU ,QWHUQDO3KRWRJUDSKV $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV 2YHUYLHZ This section includes internal photographs of the FWAN PCS B1.8 Base Station. &RQWHQWV 6.1Internal Photographs of FWAN PCS B1.8 Base Station Digital Cards . 6-44 6.2Internal Photographs of the FWAN PCS B1.8 Base Station RF Modules 6-56 %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  ,QWHUQDO3KRWRJUDSKVRI):$13&6%%DVH6WDWLRQ 'LJLWDO&DUGV Figure 6.1 and Figure 6.13 show the overall view of the Base Station showing hardware, cabling, and loads during radiated emissions testing. The Base Station comprises six sections (top to bottom): 1. Circuit breakers 2. AC/DC power rectifier 3. Telephony DSX panel 4. Eight RF transceiver modules 5. Digital shelf 6. Air-moving device  'LJLWDO6KHOI )LJXUH 2YHUYLHZ RI WKH ):$1 3&6 % %DVH 6WDWLRQ 'LJLWDO &DELQHW $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV Figure 6.2 shows the air-moving device (AMD), which is located beneath the digital shelf. Also shown is the typical space between the AMD and the bottom of the EMI cabinet where excess cables are bundled. )LJXUH 9LHZ RI WKH /RZHUPRVW 6KHOI DQG 8QGHU6SDFH RI WKH ):$1 3&6 % %DVH 6WDWLRQ 'LJLWDO &DELQHW %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  1HWZRUN,QWHUIDFH&LUFXLW3DFN3&$ The Network Interface Circuit (NIC) Pack is responsible for interfacing the Base to the 5ESS for voice and to the DSN for HSD via T1/DS1, 1.544 Mbps interfaces. These T1 signals are in Extended Super Frame, ESF, format and carry either GR303 DS0 voice or Point-to-Point Protocol, PPP, over HDLC frames for High Speed Data, HSD. Any mix of voice or HSD interfaces are supported by the NIC for a total of sixteen T1 signals. )LJXUH 1HWZRUN ,QWHUIDFH &LUFXLW 3DFN 3&$ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV )LJXUH %RWWRP RI WKH 1HWZRUN ,QWHUIDFH &LUFXLW 3DFN 3&$ %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  :33&$ The WP card provides waveform coding function, fax modem demod/remod, and echo cancellation functions for multiple simultaneous voice channels. )LJXUH :3 3&$ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV )LJXUH %RWWRP RI :3 3&$ %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  %&33&$ The Base Control Processor Circuit Pack, BCP is responsible for interfacing the NIC, WP, and SBC circuit packs via serial 8 Mbps TDM bit streams. The BCP performs the Base interworking function with the 5ESS, i.e. TMC channel termination and generation, as well as, the IP routing function, and digital switching. )LJXUH %&3 3&$ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV )LJXUH %RWWRP RI %&3 3&$ %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  6%&3&$ The SBC circuit pack performs the airlink functionality required to implement the Voice channels, Network Access channels, the high speed data (HSD) channels, and a number of subband functions including - delay compensation, Remote Unit (RU) synchronization pilot generation, and dynamic channel allocation. )LJXUH 6%& 3&$ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV )LJXUH%RWWRP RI 6%& 3&$ %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  6033&$ The SMP provides for Base system/circuit pack management. )LJXUH 603 3&$ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV )LJXUH%RWWRP RI 603 3&$ %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  ,QWHUQDO3KRWRJUDSKVRIWKH):$13&6%%DVH6WDWLRQ 5)0RGXOHV Figure 6.13 shows the overall view of the Base Station showing hardware, cabling, and loads during radiated emissions testing. Refer to Section 6.1 for details. )LJXUH 2YHUYLHZ RI WKH ):$1 3&6 % %DVH 6WDWLRQ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO3KRWRJUDSKV Figure 6.14 identifies the air-moving device (AMD) which is located beneath the digital shelf. Also shown is the typical space between the AMD and the bottom of the EMI cabinet where excess coaxial cables are bundled. )LJXUH 9LHZ RI WKH /RZHU 3RUWLRQ RI WKH ):$1 3&6 % %DVH 6WDWLRQ &DELQHW %DVH6WDWLRQ%3&6)&&7\SH$FFHSWDQFH$SSOLFDWLRQ  $77:LUHOHVV&RQILGHQWLDO3URSULHWDU\$77:LUHOHVV6HUYLFHV 5HY  3KRWRJUDSKVRIWKH7UDQVFHLYHU0RGXOH8QLW Figure 6.15 shows the right side view of the transceiver module unit. The transceiver module provides amplification of TX and RX signals, redundancy switching, gain control, diplexing, DC/DC conversation, front panel test points (RF), LED alarm indicators, ESN capability, and control and monitoring of status and alarm conditions. )LJXUH 7UDQVFHLYHU 0RGXOH ² 5LJKW 6LGH 9LHZ $77:LUHOHVV6HUYLFHV$77:LUHOHVV&RQILGHQWLDO3URSULHWDU\  5HY &KDSWHU ,QWHUQDO…

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Chapter 11: Test Reports AT&T Wireless Services AT&T Wireless Confidential & Proprietary 11-541 Rev. 1.0 12/14/01 Chapter 11 Test Reports Overview This section contains the test reports and data that show that the FWAN PCS Base Station B1.8 is in compliance with all applicable technical standards and FCC Rules and Regulations. Contents 11.1Test Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-542 11.2RF Characterization Test Results . . . . . . . . . . . . . . . . . . . . . . . . 11-568 11.3Electromagnetic Compatibility Test Results . . . . . . . . . . . . . . . . 11-596 Base Station (B1.8 PCS) FCC Type Acceptance Application 11-542 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 11.1 Test Methodology This section describes the test methodology used to validate the performance of the AT&T Wireless Services PWAN Base Station against the applicable requirements of FCC Part 2, 15, and Part 24. 11.1.1 Introduction The purpose of this chapter is to present the test methodology used to verify FCC regulatory compliance of the PWAN Base Station. Throughout this document, all depictions of test configurations utilize a common set of interfaces. These interfaces are described in detail in Chapter 7, “Operational Description” of this document. The name and purpose of each interface is summarized in Table 11.1 below: Table 11.1PWAN Interface Definitions 11.1.2 Base Station Frequency Stability vs. Temperature 11.1.2.1 Applicable FCC Rules Parts • FCC Subpart 2.1055 - Measured over the temperature range of -30 to +50 C. Frequency measurements shall be made at the extremes and at intervals of not greater than 10 degrees C throughout the range. Only the frequency determining portions of the transmitter need be subjected to this test. • FCC Subpart 24.235 - The frequency stability shall be sufficient to ensure that the fundamental emission stays within the authorized frequency block. 11.1.2.2 Overview The PWAN Base Station obtains its frequency stability from GPS-disciplined 10 MHz ovenized oscillators located on the station’s primary and redundant Synchronization Cards. Either Synchronization Card is capable of functioning in one of the following three operational modes: •Oscillator operating in GPS Locked Mode: During normal operation, the frequency of the 10 MHz oscillator is disciplined by GPS to an accuracy of approximately 0.005 PPM. Interface IDDescription T InterfaceTerminal interface to Remote Units A InterfaceAir interface between Remote Units and Base Station radio equipment P InterfaceInterface between Base Station radio equipment and Base Station control Csw InterfaceInterface that provides public switched telephone network (PSTN) connectivity for call processing AT&T Wireless Services AT&T Wireless Confidential & Proprietary 11-543 Rev. 1.0 12/14/01 Chapter 11: Test Reports •Oscillator operating in GPS Holdover Mode: In the event that GPS signals are lost (due to an antenna or GPS receiver failure), the 10 MHz oscillator will utilize the most current correction data obtained from the on-board GPS receiver to maintain an accuracy of approximately 0.02 PPM over a 24 hour period. •Oscillator operating in GPS Free-Run mode: In the event that GPS is completely unobtainable, the 10 MHz oscillator will free-run with an accuracy of approximately. 0.2 PPM. The 10 MHz disciplined oscillators on the primary and redundant Synchronization Cards serve as the main frequency-determining element in the Base Station. Any frequency error present in the 10 MHz output of the Synchronization Cards will create a corresponding frequency error in each transmitted OFDM tone at the Base Station operating frequency. The Base Station also contains its own low stability (approx. 5 PPM) 10 MHz reference oscillator. This internal oscillator is phase-locked to the active Synchronization Card for the purpose of minimizing the effects of reference oscillator phase noise. The Base Station software is designed to disable RF output power in the event that both of the Synchronization Cards fail (or are not present). As a result, the Base Station will not transmit while using the internal oscillator as its 10 MHz reference. 11.1.2.3 Test Methodology The Synchronization Card under test was placed into a Screening Systems, Inc. model QRS-410T thermal chamber (refer to Figure 11.1). A Hewlett/Packard 53132 frequency counter was used to monitor the output frequency of the DUT. A Hewlett-Packard 5071A cesium beam primary standard was utilized as a precision frequency reference for the 53132A frequency counter. The frequency counter resolution was set to 0.001 Hz. The frequency accuracy of the 10 MHz oscillator was tracked over the temperature range of -30 to +50 Celsius. During this test the thermal chamber “stair-stepped” from -40 to +60 degrees Celsius in temperature increments of 10 degrees Celsius. The thermal chamber’s sensing thermocouple was attached to the Synchronization Card about 10 cm from the ovenized oscillator to assure that the DUT was kept to within ± 5 degrees Celsius of each pre-determined thermal step. The chamber held each thermal step for 15 minutes. The total run time was three hours per test. The frequency stability of the DUT was measured over temperature in each of the three operating modes. Base Station (B1.8 PCS) FCC Type Acceptance Application 11-544 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 Figure 11.1Base Station Synchronization Card Frequency Stability vs. Temperature Test Configuration. 11.1.3 Base Station Frequency Stability vs. Input Voltage 11.1.3.1 Applicable FCC Rules Parts • FCC Subpart 2.1055(d) - The frequency stability shall be measured with variation of primary supply voltage as follows: 1) Vary primary voltage from 85 to 115 percent of the nominal value for other than hand carried equipment. 3) The supply voltage shall be measured at the input to the cable provide with th…

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Chapter 11: Test Reports AT&T Wireless Services AT&T Wireless Confidential & Proprietary 11-541 Rev. 1.0 12/14/01 Chapter 11 Test Reports Overview This section contains the test reports and data that show that the FWAN PCS Base Station B1.8 is in compliance with all applicable technical standards and FCC Rules and Regulations. Contents 11.1Test Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-542 11.2RF Characterization Test Results . . . . . . . . . . . . . . . . . . . . . . . . 11-568 11.3Electromagnetic Compatibility Test Results . . . . . . . . . . . . . . . . 11-596 Base Station (B1.8 PCS) FCC Type Acceptance Application 11-542 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 11.1 Test Methodology This section describes the test methodology used to validate the performance of the AT&T Wireless Services PWAN Base Station against the applicable requirements of FCC Part 2, 15, and Part 24. 11.1.1 Introduction The purpose of this chapter is to present the test methodology used to verify FCC regulatory compliance of the PWAN Base Station. Throughout this document, all depictions of test configurations utilize a common set of interfaces. These interfaces are described in detail in Chapter 7, “Operational Description” of this document. The name and purpose of each interface is summarized in Table 11.1 below: Table 11.1PWAN Interface Definitions 11.1.2 Base Station Frequency Stability vs. Temperature 11.1.2.1 Applicable FCC Rules Parts • FCC Subpart 2.1055 - Measured over the temperature range of -30 to +50 C. Frequency measurements shall be made at the extremes and at intervals of not greater than 10 degrees C throughout the range. Only the frequency determining portions of the transmitter need be subjected to this test. • FCC Subpart 24.235 - The frequency stability shall be sufficient to ensure that the fundamental emission stays within the authorized frequency block. 11.1.2.2 Overview The PWAN Base Station obtains its frequency stability from GPS-disciplined 10 MHz ovenized oscillators located on the station’s primary and redundant Synchronization Cards. Either Synchronization Card is capable of functioning in one of the following three operational modes: •Oscillator operating in GPS Locked Mode: During normal operation, the frequency of the 10 MHz oscillator is disciplined by GPS to an accuracy of approximately 0.005 PPM. Interface IDDescription T InterfaceTerminal interface to Remote Units A InterfaceAir interface between Remote Units and Base Station radio equipment P InterfaceInterface between Base Station radio equipment and Base Station control Csw InterfaceInterface that provides public switched telephone network (PSTN) connectivity for call processing AT&T Wireless Services AT&T Wireless Confidential & Proprietary 11-543 Rev. 1.0 12/14/01 Chapter 11: Test Reports •Oscillator operating in GPS Holdover Mode: In the event that GPS signals are lost (due to an antenna or GPS receiver failure), the 10 MHz oscillator will utilize the most current correction data obtained from the on-board GPS receiver to maintain an accuracy of approximately 0.02 PPM over a 24 hour period. •Oscillator operating in GPS Free-Run mode: In the event that GPS is completely unobtainable, the 10 MHz oscillator will free-run with an accuracy of approximately. 0.2 PPM. The 10 MHz disciplined oscillators on the primary and redundant Synchronization Cards serve as the main frequency-determining element in the Base Station. Any frequency error present in the 10 MHz output of the Synchronization Cards will create a corresponding frequency error in each transmitted OFDM tone at the Base Station operating frequency. The Base Station also contains its own low stability (approx. 5 PPM) 10 MHz reference oscillator. This internal oscillator is phase-locked to the active Synchronization Card for the purpose of minimizing the effects of reference oscillator phase noise. The Base Station software is designed to disable RF output power in the event that both of the Synchronization Cards fail (or are not present). As a result, the Base Station will not transmit while using the internal oscillator as its 10 MHz reference. 11.1.2.3 Test Methodology The Synchronization Card under test was placed into a Screening Systems, Inc. model QRS-410T thermal chamber (refer to Figure 11.1). A Hewlett/Packard 53132 frequency counter was used to monitor the output frequency of the DUT. A Hewlett-Packard 5071A cesium beam primary standard was utilized as a precision frequency reference for the 53132A frequency counter. The frequency counter resolution was set to 0.001 Hz. The frequency accuracy of the 10 MHz oscillator was tracked over the temperature range of -30 to +50 Celsius. During this test the thermal chamber “stair-stepped” from -40 to +60 degrees Celsius in temperature increments of 10 degrees Celsius. The thermal chamber’s sensing thermocouple was attached to the Synchronization Card about 10 cm from the ovenized oscillator to assure that the DUT was kept to within ± 5 degrees Celsius of each pre-determined thermal step. The chamber held each thermal step for 15 minutes. The total run time was three hours per test. The frequency stability of the DUT was measured over temperature in each of the three operating modes. Base Station (B1.8 PCS) FCC Type Acceptance Application 11-544 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 Figure 11.1Base Station Synchronization Card Frequency Stability vs. Temperature Test Configuration. 11.1.3 Base Station Frequency Stability vs. Input Voltage 11.1.3.1 Applicable FCC Rules Parts • FCC Subpart 2.1055(d) - The frequency stability shall be measured with variation of primary supply voltage as follows: 1) Vary primary voltage from 85 to 115 percent of the nominal value for other than hand carried equipment. 3) The supply voltage shall be measured at the input to the cable provide with th…

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Chapter 12: Test Setup Photos AT&T Wireless Services AT&T Wireless Confidential & Proprietary 12-611 Rev. 1.0 12/14/01 Chapter 12 Test Setup Photos Overview This section contains test setup photos. Contents 12.1Radiated Emissions Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 12-612 12.2Parts Comprising Equipment Under Test (EUT) . . . . . . . . . . . . 12-614 12.3EUT Test Configuration Photos . . . . . . . . . . . . . . . . . . . . . . . . . 12-615 12.4Testing Facility and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-617 Base Station (B1.8 PCS) FCC Type Acceptance Application 12-612 AT&T Wireless Confidential & ProprietaryAT&T Wireless Services 12761 Rev. 1.0 12/14/01 12.1 Radiated Emissions Test Setup Radiated emissions measurements shall be made over the frequency range specified by the regulatory agency — in this case, per FCC Part 15, subpart 15.207. Measurements shall be made at the EUT…

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