Q78-ZTEMZ16GSM Quad-Band GPRS Wireless Data Card (EDGE)

ZTE MZ16 USB EDGE MODEM User’s Guide 1 ZTE MZ16 USB Wireless Network Modem User Guide CONTENTS 1. Introduction to the ZTE MZ16 USB EDGE MODEM .................................................................2 1.1 Features of the ZTE MZ16 USB Wireless Network Modem..............................................2 1.2 Overview of the ZTE MZ16 USB Wireless Network Modem............................................3 1.3 System Requirements of the ZTE MZ16 USB Wireless Network Modem ........................4 2. Introduction of the ZTE MZ16 Wireless Network Modem Manager Software............................5 3. Inserting the ZTE MZ16 Wireless Network Modem ....................................................................6 4. ZTE MZ16 Manager Software Installation guide .........................................................................7 5. Uninstalling the ZTE MZ16 Manager Software ...........................................................................9 6. Using the ZTE MZ16 Manager Software ...................................................................................10 6.1 To use voice call function .................................................................................................10 6.2 To Use SMS Function.......................................................................................................11 6.3 To use phone book function ..............................................................................................11 6.4 To use call record function................................................................................................11 6.5 To make a series of personalized settings .........................................................................12 6.6 To create or delete a connection profile with Connection Wizard ....................................13 6.7 To open the connection to internet....................................................................................14 6.8 To access more help information on line ..........................................................................15 6.9 To use the shortcut menu function ....................................................................................16 7. ZTE MZ16 Quick Start Guide ....................................................................................................17 8. Troubleshooting ..........................................................................................................................18 9. Terminology................................................................................................................................19 ZTE MZ16 USB EDGE MODEM User’s Guide 2 1. Introduction of the ZTE MZ16 USB EDGE MODEM 1.1 Features of the ZTE MZ16 USB Wireless Network Modem z Dimensions: 109mm×46mm×14mm z Weight: approx. 41g z Data interface：USB 2.0 z EDGE multi-slot class 12 (up to 4Tx, 4Rx, 5 total) z Field Firmware Upgradeable z Quad-band GSM850/GSM900/DCS1800/PCS1900 z Support GSM/GPRS/EDGE z Coding schemes: CS1~4; MCS1~9 z Data, voice and SMS support z Easy to integrate z LED display z Wide input voltage range z Highly compact, light and powerful z Integrated SIM card holder z Extended AT commands for industrial applications z USB bus-powered ,requires no external power supply z Firmware upgrade available. z Operation Temperature: -20 to +55 o C z Storage Temperature: -30 to +70 o C z Vibration (non-operation): 15g peak, 10Hz to 2KHz z Humidity: < 95% (non-condensing) ZTE MZ16 USB EDGE MODEM User’s Guide 3 1.2 Overview of the ZTE MZ16 USB Wireless Network Modem The ZTE MZ16 USB EDGE MODEM is a Quad-band wide area wireless network modem supporting all different frequencies used by EDGE and GSM/GPRS networks worldwide. Users around the globe can enjoy the freedom to have access to critical information wherever they are located on both EDGE and GSM/GPRS networks. The ZTE MZ16 provides users with ease of use to transfer large files, download graphic heavy information, send/receive SMS messages and receive large amounts of data quickly, to stay connected during their busy day. With the ZTE MZ16, users can stay connected on EDGE networks at average speeds between 100-130 kbps, supporting speeds up to 216 kbps. The ZTE MZ16 provides the ability of field firmware upgrade. ZTE MZ16 USB EDGE MODEM User’s Guide 4 1.3 System Requirements of the ZTE MZ16 USB Wireless Network Modem z Computer running Windows 2000 or Windows XP z ZTE MZ16 Manager Software for computer z USB Ports z Memory: 32 MB z Disk Space: 10 MB z Disk Drive: CD ROM (Installation only) z External antenna z Earphone with microphone for voice call z SIM card z Web Explorer for Internet ZTE MZ16 USB EDGE MODEM User’s Guide 5 2. Introduction of the ZTE MZ16 Wireless Network Modem Manager Software The ZTE MZ16 Wireless Network Modem Manager software is designed to help you set up a wireless connection to the Internet and mobile network. Your ZTE MZ16 Wireless Network Modem can act for Internet from your personal computer, so you can use SMS, browse the Web, and chat using wireless connections. The ZTE MZ16 Wireless Network Modem Manager Software has friendly man-machine interface and thus it is possible for you to use the strong function of the ZTE MZ16 Wireless Network Modem easily. ZTE MZ16 USB EDGE MODEM User’s Guide 6 3. Inserting the ZTE MZ16 Wireless Network Modem z Step 1: insert the SIM card into the SIM card slot of the ZTE MZ16. Note: specially make sure the right direction of SIM card slot. z Step 2: insert the ZTE MZ16 into the USB Port of the computer, as shown in the following. For get the better performance of connecting network, we recommend that insert the ZTE MZ16 into the USB Ports of the computer, as shown in the following. Note: 1. The above steps are a recommendatory order. You may also complete these operations in your own order before using the ZTE MZ16. 2. Do not insert or remove the SIM card while the ZTE MZ16 has been connected to a working computer, …

Text truncated - open the document above for the full version.

FCC Authorization Date: 2007-8-9 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We ZTE CORPORATION , the undersigned, Hereby authorizes Shanghai Morlab Communication Technology Co.,Ltd to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shanghai Morlab Communication Technology Co.,Ltd on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). This authorization is valid until further written notice from the applicant. Sincerely Yours, Tian Ye Director ZTE CORPORATION

Aug 8, 2007 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we, ZTE CORPORATION, hereby request confidential treatment of information accompanying this Application (FCC ID: Q78-ZTEMZ16) as outlined below: Exhibit Type File Name Block Diagram, ZTE MZ16 Block Diagram.pdf Schematics ZTE MZ16 SCH.pdf Operational Description ZTE MZ16 operational description.pdf Parts List ZTE MZ16 PART_LIST.pdf Tune Up Info ZTE MZ16 Tune-up.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to us, ZTE CORPORATION, and provide unjustified benefits to its competitors. We, ZTE CORPORATION, understand that pursuant to Rule 0.457, disclosure of this Application (FCC ID: Q78-ZTEMZ16) and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely Yours, ZTE CORPORATION

External photos

Internal photos

No. SAR07-038 Page 3 of 80 Contents 1. GENERAL CONDITIONS 2. ADMINISTRATIVE DATA 2.1. Identification of the Responsible Testing Laboratory 2.2. Identification of the Responsible Testing Location(s) 2.3. Organization Item 2.4. Identification of Applicant 2.5. Identification of Manufacture 3. EQUIPMENT UNDER TEST (EUT) 3.1. Identification of the Equipment under Test 3.2. Identification of all used Test Sample of the Equipment under Test 4. OPERATIONAL CONDITIONS DURING TEST 4.1. Schematic Test Configuration 4.2. SAR Measurement System 5. CHARACTERISTICS OF THE TEST 5.1. Applicable Limit Regulations 5.2. Applicable Measurement Standards 6. LABORATORY ENVIRONMENT 7. TEST RESULTS 7.1. Dielectric Performance 7.2. Summary of Measurement Results 7.3. Conclusion 8. MEASUREMENT UNCERTAINTY 9. MAIN TEST INSTRUMENTS This Test Report consists of the following Annexes: Annex A: Accreditation Certificate Annex B: Test Layout Annex C: Sample Photographs Annex D: Graph Test Results Annex E: System Performance Check Data No. SAR07-038 Page 4 of 80 1．GENERAL CONDITIONS 1.1 This report only refers to the item that has undergone the test. 1.2 This report standalone dose not constitute or imply by its own an approval of the product by the certification Bodies or competent Authorities. 1.3 This document is only valid if complete; no partial reproduction can be made without written approval of Shenzhen Electronic Product Quality Testing Center. 1.4 This report cannot be used partially or in full for publicity and/or promotional purposes without previous written approval of Shenzhen Electronic Product Quality Testing Center and the Accreditation Bodies, if it applies. No. SAR07-038 Page 5 of 80 2. Administrative Date 2.1. Identification of the Responsible Testing Laboratory Company Name: ShenZhen Electronic Product Quality Testing Center Department: Testing Department Address: Electronic Testing Building, ShaHe Road, NanShan District, ShenZhen, P. R. China Telephone: +86-755-26628676 Fax: +86-755-26627238 Responsible Test Lab Managers: Mr. Li’an Wu 2.2. Identification of the Responsible Testing Location(s) Company Name: ShenZhen Electronic Product Quality Testing Center Address: Electronic Testing Building, ShaHe Road, NanShan District, ShenZhen, P. R. China 2.3. Organization Item S.E.T Report No.: SAR07-038 S.E.T Project Leader: Mr. Li Sixiong S.E.T Responsible for accreditation scope: Mr. Li’an Wu Start of Testing: 2007-08-24 End of Testing: 2007-09-04 2.4. Identification of Applicant Company Name: ZTE CORPORATION Address: Zhongxing Bldg, Hi-Tech Park, NanShan, ShenZhen, P.R.China Contact person: Tian Ye Telephone: +86-21-68896840 Fax: +86-21-50801070 2.5. Identification of Manufacture Company Name: ZTE CORPORATION Address: Zhongxing Bldg, Hi-Tech Park, NanShan, ShenZhen, P.R.China Contact person: Tian Ye Telephone: +86-21-68896840 Fax: +86-21-50801070 Notes: This data is based on the information by the applicant. No. SAR07-038 Page 6 of 80 3. Equipment Under Test (EUT) 3.1. Identification of the Equipment under Test Brand Name: ZTE Type Name: ZTEMZ16 Marking Name: ZTEMZ16 Test frequency GSM 850MHz and GSM 1900MHz Development Stage Identical prototype Accessories USB Line Battery Model Battery specification Antenna type Build inside Operation mode Call established Modulation mode GSMK General description: Max. Power 33dBm(GSM 850) 30dBm(GSM 1900) 3.2. Identification of all used Test Sample of the Equipment under Test EUT Code Serial Number Hardware Version Software Version IMEI 1# N.A. V1.02 N60_V16.04_B03 355735001205956 NOTE: 1. Please refer to Appendix C for the photographs of the EUT. For a more detailed features description about the EUT, please refer to User’s Manual. 2. The EUT can work in four different bands, but this SAR test was performed only in the GPRS 850MHz, GPRS 1900MHz, EGPRS 850MHz and EGPRS 1900MHz bands. No. SAR07-038 Page 7 of 80 4 OPERATIONAL CONDITIONS DURING TEST 4.1 Schematic Test Configuration During SAR test, EUT is in Traffic Mode (Channel Allocated) at Normal Voltage Condition. A communication link is set up with a System Simulator (SS) by air link, and a call is established. The TCH is allocated to 128, 190 and 251 respectively in the case of GSM 850 MHz, or to 512, 661 and 810 respectively in the case of GSM 1900 MHz. The EUT is commanded to operate at maximum transmitting power. The EUT shall use its internal transmitter. The antenna(s), battery and accessories shall be those specified by the manufacturer. The EUT battery must be fully charged and checked periodically during the test to ascertain uniform power output. If a wireless link is used, the antenna connected to the output of the base station simulator shall be placed at least 50 cm away from the handset. The signal transmitted by the simulator to the antenna feeding point shall be lower than the output power level of the handset by at least 35 dB. 4.2 SAR Measurement System The SAR measurement system being used is the IndexSAR SARA2 system, which consists of a Figure1. SAR Lab Test Measurement Set-up No. SAR07-038 Page 8 of 80 Mitsubishi RV-E2 6-axis robot arm and controller, IndexSAR probe and amplifier and SAM phantom Head Shape. The system is controlled remotely from a PC, which contains the software to control the robot and data acquisition equipment. The software also displays the data obtained from test scans. In operation, the system first does an area (2D) scan at a fixed depth within the liquid from the inside wall of the phantom. When the maximum SAR point has been found, the system will then carry out a 3D scan centred at that point to determine volume averaged SAR level. 4.2.1 Robot system specification The robot is used to articulate the probe to programmed positions inside the phantom head to obtain the SAR readings from the DUT. 4.2.2 Probe and amplifier specification IXP-050 Indexsar isotropic immersible SAR probe The probes are constructed using three orthogonal dipole sensors arranged on an interlocki…

Text truncated - open the document above for the full version.

No. SAR07-038 Page 3 of 93 Contents 1. GENERAL CONDITIONS 2. ADMINISTRATIVE DATA 2.1. Identification of the Responsible Testing Laboratory 2.2. Identification of the Responsible Testing Location(s) 2.3. Organization Item 2.4. Identification of Applicant 2.5. Identification of Manufacture 3. EQUIPMENT UNDER TEST (EUT) 3.1. Identification of the Equipment under Test 3.2. Identification of all used Test Sample of the Equipment under Test 4. OPERATIONAL CONDITIONS DURING TEST 4.1. Schematic Test Configuration 4.2. SAR Measurement System 5. CHARACTERISTICS OF THE TEST 5.1. Applicable Limit Regulations 5.2. Applicable Measurement Standards 6. LABORATORY ENVIRONMENT 7. TEST RESULTS 7.1. Dielectric Performance 7.2. Summary of Measurement Results 7.3. Conclusion 8. MEASUREMENT UNCERTAINTY 9. MAIN TEST INSTRUMENTS This Test Report consists of the following Annexes: Annex A: Accreditation Certificate Annex B: Test Layout Annex C: Sample Photographs Annex D: Graph Test Results Annex E: System Performance Check Data No. SAR07-038 Page 4 of 93 1．GENERAL CONDITIONS 1.1 This report only refers to the item that has undergone the test. 1.2 This report standalone dose not constitute or imply by its own an approval of the product by the certification Bodies or competent Authorities. 1.3 This document is only valid if complete; no partial reproduction can be made without written approval of Shenzhen Electronic Product Quality Testing Center. 1.4 This report cannot be used partially or in full for publicity and/or promotional purposes without previous written approval of Shenzhen Electronic Product Quality Testing Center and the Accreditation Bodies, if it applies. No. SAR07-038 Page 5 of 93 2. Administrative Date 2.1. Identification of the Responsible Testing Laboratory Company Name: ShenZhen Electronic Product Quality Testing Center Department: Testing Department Address: Electronic Testing Building, ShaHe Road, NanShan District, ShenZhen, P. R. China Telephone: +86-755-26628676 Fax: +86-755-26627238 Responsible Test Lab Managers: Mr. Li’an Wu 2.2. Identification of the Responsible Testing Location(s) Company Name: ShenZhen Electronic Product Quality Testing Center Address: Electronic Testing Building, ShaHe Road, NanShan District, ShenZhen, P. R. China 2.3. Organization Item S.E.T Report No.: SAR07-038 S.E.T Project Leader: Mr. Li Sixiong S.E.T Responsible for accreditation scope: Mr. Li’an Wu Start of Testing: 2007-08-24 End of Testing: 2007-12-10 2.4. Identification of Applicant Company Name: ZTE CORPORATION Address: Zhongxing Bldg, Hi-Tech Park, NanShan, ShenZhen, P.R.China Contact person: Tian Ye Telephone: +86-21-68896840 Fax: +86-21-50801070 2.5. Identification of Manufacture Company Name: ZTE CORPORATION Address: Zhongxing Bldg, Hi-Tech Park, NanShan, ShenZhen, P.R.China Contact person: Tian Ye Telephone: +86-21-68896840 Fax: +86-21-50801070 Notes: This data is based on the information by the applicant. No. SAR07-038 Page 6 of 93 3. Equipment Under Test (EUT) 3.1. Identification of the Equipment under Test Brand Name: ZTE Type Name: ZTEMZ16 Marking Name: ZTEMZ16 Test frequency GSM 850MHz and GSM 1900MHz Development Stage Identical prototype Accessories USB Line Battery Model Battery specification Antenna type Build inside Operation mode Call established Modulation mode GSMK General description: Max. Power 33dBm(GSM 850) 30dBm(GSM 1900) 3.2. Identification of all used Test Sample of the Equipment under Test EUT Code Serial Number Hardware Version Software Version IMEI 1# N.A. V1.02 N60_V16.04_B03 355735001205956 NOTE: 1. Please refer to Appendix C for the photographs of the EUT. For a more detailed features description about the EUT, please refer to User’s Manual. 2. The EUT can work in four different bands, but this SAR test was performed only in the GPRS 850MHz, GPRS 1900MHz, EDGE 850MHz and EDGE 1900MHz bands. No. SAR07-038 Page 7 of 93 4 OPERATIONAL CONDITIONS DURING TEST 4.1 Schematic Test Configuration During SAR test, EUT is in Traffic Mode (Channel Allocated) at Normal Voltage Condition. A communication link is set up with a System Simulator (SS) by air link, and a call is established. The TCH is allocated to 128, 190 and 251 respectively in the case of GSM 850 MHz, or to 512, 661 and 810 respectively in the case of GSM 1900 MHz. The EUT is commanded to operate at maximum transmitting power. The EUT shall use its internal transmitter. The antenna(s), battery and accessories shall be those specified by the manufacturer. The EUT battery must be fully charged and checked periodically during the test to ascertain uniform power output. If a wireless link is used, the antenna connected to the output of the base station simulator shall be placed at least 50 cm away from the handset. The signal transmitted by the simulator to the antenna feeding point shall be lower than the output power level of the handset by at least 35 dB. 4.2 SAR Measurement System The SAR measurement system being used is the IndexSAR SARA2 system, which consists of a Figure1. SAR Lab Test Measurement Set-up No. SAR07-038 Page 8 of 93 Mitsubishi RV-E2 6-axis robot arm and controller, IndexSAR probe and amplifier and SAM phantom Head Shape. The system is controlled remotely from a PC, which contains the software to control the robot and data acquisition equipment. The software also displays the data obtained from test scans. In operation, the system first does an area (2D) scan at a fixed depth within the liquid from the inside wall of the phantom. When the maximum SAR point has been found, the system will then carry out a 3D scan centred at that point to determine volume averaged SAR level. 4.2.1 Robot system specification The robot is used to articulate the probe to programmed positions inside the phantom head to obtain the SAR readings from the DUT. 4.2.2 Probe and amplifier specification IXP-050 Indexsar isotropic immersible SAR probe The probes are constructed using three orthogonal dipole sensors arranged on an interlocking…

Text truncated - open the document above for the full version.

Report No. SN0093_900 April 2007 INDEXSAR 900MHz validation Dipole Type IXD-090 S/N 0093 Performance measurements MI Manning Indexsar, Oakfield House, Cudworth Lane, Newdigate, Surrey RH5 5BG. UK. Tel: +44 (0) 1306 632870 Fax: +44 (0) 1306 631834 e-mail: [email protected] 1. Measurement Conditions Measurements were performed using a box-shaped phantom made of PMMA with dimensions designed to meet the accuracy criteria for reasonably-sized phantoms that do not have liquid capacities substantially in excess of the volume of liquid required to fill the Indexsar upright SAM phantoms used for SAR testing of handsets against the ear. An Anritsu MS4623B vector network analyser was used for the return loss measurements. The dipole was placed in a special holder made of low-permittivity, low-loss materials. This holder enables the dipole to be positioned accurately in the centre of the base of the Indexsar box-phantom used for flat-surface testing and validation checks. The validation dipoles are supplied with special spacers made from a low- permittivity, low-loss foam material. These spacers are fitted to the dipole arms to ensure that, when the dipole is offered up to the phantom surface, the spacing between the dipole and the liquid surface is accurately aligned according to the guidance in the relevant standards documentation. The spacers are rectangular with a central hole equal to the dipole arm diameter and dimensioned so that the longer side can be used to ensure a spacing of 15mm from the liquid in the phantom (for tests at 900MHz and below) and the shorter side can be used for tests at 1800MHz and above to ensure a spacing of 10mm from the liquid in the phantom. The spacers are made on a CNC milling machine with an accuracy of 1/40 th mm but they may suffer wear and tear and need to be replaced periodically. The material used is Rohacell, which has a relative permittivity of approx. 1.05 and a negligible loss tangent. The apparatus supplied by Indexsar for dipole validation tests thus includes: Balanced dipoles for each frequency required are dimensioned according to the guidelines given in IEEE 1528 [1]. The dipoles are made from semi-rigid 50 Ohm co-ax, which is joined by soldering and is gold-plated subsequently. The constructed dipoles are easily deformed, if mis-handled, and periodic checks need to be made of their symmetry. Rohacell foam spacers designed for presenting the dipoles to 2mm thick PMMA box phantoms. These components also suffer wear and tear and should be replaced when the central hole is a loose-fit on the dipole arms or if the edges are too worn to ensure accurate alignment. The standard spacers are dimensioned for use with 2mm wall thickness (additional spacers are available for 4mm wall thickness). 2. Typical SAR Measurement A SAR validation check is performed with the box-phantom located on the SARA2 phantom support base on the SARA2 robot system. Tests are then conducted at a feed power level of approx. 0.25W. The actual power level is recorded and used to normalise the results obtained to the standard input power conditions of 1W (forward power). The ambient temperature is 21 o C +/- 1 o C and the relative humidity is around 40% during the measurements. The phantom is filled with a 900MHz brain liquid using a recipe from [1], which has the following electrical parameters (measured using an Indexsar DiLine kit) at 900MHz: Relative Permittivity 42.5 Conductivity 0.97 S/m The SARA2 software version VPM2.2 is used with an Indexsar probe previously calibrated using waveguides. The 3D measurements made using the dipole at the bottom of the phantom box is shown below: The results, normalised to an input power of 1W (forward power) are typically: Averaged over 1 cm3 (1g) of tissue 10.55 W/kg Averaged over 10cm3 (10g) of tissue 6.80 W/kg These results can be compared with Table 8.1 in [1]. The agreement is within 10%. 3. Dipole impedance and return loss The dipoles are designed to have low return loss ONLY when presented against a lossy-phantom at the specified distance. A Vector Network Analyser (VNA) was used to perform a return loss measurement on the specific dipole when in the measurement-location against the box phantom. The distance was as specified in the standard i.e. 10mm from the liquid (for 900MHz). The Indexsar foam spacers (described above) were used to ensure this condition during measurement. The impedance was measured at the SMA-connector with the network analyser. The following parameters were measured: Dipole impedance at 900 MHz Re{Z} = 49.998 Ω Im{Z} = 631.311 μΩ Return loss at 900MHz -20.418 dB 4. Dipole handling The dipoles are made from standard, copper-sheathed coaxial cable. In assembly, the sections are joined using ordinary soft-soldering. This is necessary to avoid excessive heat input in manufacture, which would destroy the polythene dielectric used for the cable. The consequence of the construction material and the assembly technique is that the dipoles are fragile and can be deformed by rough handling. Conversely, they can be straightened quite easily as described in this report. If a dipole is suspected of being deformed, a normal workshop lathe can be used as an alignment jig to restore the symmetry. To do this, the dipole is first placed in the headstock of the lathe (centred on the plastic or brass spacers) and the headstock is rotated by hand (do NOT use the motor). A marker (lathe tool or similar) is brought up close to the end of one dipole arm and then the headstock is rotated by 0.5 rev. to check the opposing arm. If they are not balanced, judicious deformation of the arms can be used to restore the symmetry. If a dipole has a failed solder joint, the dipole can be fixed down in such a way that the arms are co-linear and the joint re-soldered with a reasonably-powerful electrical soldering iron. Do not use gas soldering irons. After such a repair, electrical tests must be performed as described below. Please note that, beca…

Text truncated - open the document above for the full version.

Report No. SN0112_1900 April 2007 INDEXSAR 1900MHz validation Dipole Type IXD-080 S/N 0112 Performance measurements MI Manning Indexsar, Oakfield House, Cudworth Lane, Newdigate, Surrey RH5 5BG. UK. Tel: +44 (0) 1306 633870 Fax: +44 (0) 1306 631834 e-mail: [email protected] 1. Measurement Conditions Measurements were performed using a box-shaped phantom made of PMMA with dimensions designed to meet the accuracy criteria for reasonably-sized phantoms that do not have liquid capacities substantially in excess of the volume of liquid required to fill the Indexsar upright SAM phantoms used for SAR testing of handsets against the ear. An Anritsu MS4623B vector network analyser was used for the return loss measurements. The dipole was placed in a special holder made of low-permittivity, low-loss materials. This holder enables the dipole to be positioned accurately in the centre of the base of the Indexsar box-phantom used for flat-surface testing and validation checks. The validation dipoles are supplied with special spacers made from a low- permittivity, low-loss foam material. These spacers are fitted to the dipole arms to ensure that, when the dipole is offered up to the phantom surface, the spacing between the dipole and the liquid surface is accurately aligned according to the guidance in the relevant standards documentation. The spacers are rectangular with a central hole equal to the dipole arm diameter and dimensioned so that the longer side can be used to ensure a spacing of 15mm from the liquid in the phantom (for tests at 900MHz and below) and the shorter side can be used for tests at 1800MHz and above to ensure a spacing of 10mm from the liquid in the phantom. The spacers are made on a CNC milling machine with an accuracy of 1/40 th mm but they may suffer wear and tear and need to be replaced periodically. The material used is Rohacell, which has a relative permittivity of approx. 1.05 and a negligible loss tangent. The apparatus supplied by Indexsar for dipole validation tests thus includes: Balanced dipoles for each frequency required are dimensioned according to the guidelines given in IEEE 1528 [1]. The dipoles are made from semi-rigid 50 Ohm co-ax, which is joined by soldering and is gold-plated subsequently. The constructed dipoles are easily deformed, if mis-handled, and periodic checks need to be made of their symmetry. Rohacell foam spacers designed for presenting the dipoles to 2mm thick PMMA box phantoms. These components also suffer wear and tear and should be replaced when the central hole is a loose-fit on the dipole arms or if the edges are too worn to ensure accurate alignment. The standard spacers are dimensioned for use with 2mm wall thickness (additional spacers are available for 4mm wall thickness). 2. Typical SAR Measurement A SAR validation check is performed with the box-phantom located on the SARA2 phantom support base on the SARA2 robot system. Tests are then conducted at a feed power level of approx. 0.25W. The actual power level is recorded and used to normalise the results obtained to the standard input power conditions of 1W (forward power). The ambient temperature is 22 o C +/- 1 o C and the relative humidity is around 40% during the measurements. The phantom is filled with a 1900MHz brain liquid using a recipe from [1], which has the following electrical parameters (measured using an Indexsar DiLine kit) at 1900MHz: Relative Permittivity 41.5 Conductivity 1.85 S/m The SARA2 software version 2.2 VPM is used with an Indexsar probe previously calibrated using waveguides. The 3D measurements made using the dipole at the bottom of the phantom box is shown below: The results, normalised to an input power of 1W (forward power) are typically: Averaged over 1 cm3 (1g) of tissue 49.26 W/kg Averaged over 10cm3 (10g) of tissue 23.65 W/kg These results can be compared with Table 8.1 in [1]. The agreement is within 10%. 3. Dipole impedance and return loss The dipoles are des…

Text truncated - open the document above for the full version.