|Telecom Analysis Systems, Inc. TAS 4500 Altro|
Telecom Analysis Systems, Inc.
|Categoria:||Strumenti di misura|
|Descrizione:||RF Channel Emulator|
The TAS 4500 FLEX RF Channel Emulator provides a convenient, thorough approach for testing wireless communications equipment by emulating the delay, fast and slow fading, and path loss characteristics of RF mobile communication channels. The 4500 FLEX allows thorough testing in a laboratory setting and drastically reduces the time required for product tests. The 4500 FLEX can be used to test a wide range of wireless voice and data communication equipment, including cellular telephones, cellular modems, personal communication terminals, wireless LANs, pagers, wireless network equipment, and much more. TAS 4500 FLEX provides advanced signal processing features to address a wide range of wireless communications technologies. The 4500 FLEX deli vers these features in a modular format, so your test system can evolve to meet your testing needs for years to come. The TAS 4500 FLEX has the following features: * Plug~Xn RF Front End Modules « Plug-In Local Oscillator Modules ® Plug-In, Wide Bandwidth Signal Processing Modules « Plug-In System Software PCMCIA Card A single TAS 4500 emulates two independent wide bandwidth RF channels, each with up to six transmission paths, see Figure 1-1. Delay, path loss, Rayleigh fading, and log-normal fading characteristics can be programmed for each path. Two six-path channels can be combined to make one 12-path channel, and two TAS 4500s can be combined and synchronized for multi-channel applications. Product Highlights • Wideband channel emulation capability meets or exceeds requirements of most wireless communications standards, including AMPS, IS-95 (CDMA), IS-54 (TDMA), GSM, CT2, TETRA, DCS-1800 and JDC • Emulates important radio channel characteristics, including Rayleigh fading, Rician fading, Suzuki fading, Nakagami fading, log-normal shadowing, delay spread/multi-path distortion, and path loss. See feature summary in Table 1-1. • TAS 4500's modular architecture lets your test system capabilities grow as your testing requirements grow. The modular 4500 FLEX architecture lets you select the number of RF channels and frequency synthesizers required to fit both existing and future testing applications. • The FLEX-IF™ allows you to select the IF bandwidth that is best for your application. Bandwidths of 6 MHz, 15 MHz, and 26 MHz are available to meet all your testing needs. • The FLEX-RF™ front end offers a host of high-performance features, including excellent rejection of the local oscillator signal and a built-in RF attenuator. These features greatly enhance dynamic range and improve testing performance at low RF receive levels. • The FLEX-LO™ modules completely address the testing needs of both cordless phone, paging, cellular and PCS applications, eliminating the need for external signal generators. • Built-in digital signal processors and user interface provide generation and control of fading signals in real time: no external PC required, no long signal processing delays, • Advanced Fading Features such as selectable fading method, fading repetition rate and fading power spectrum allow comprehensive testing using multiple fading models. « The Dynamic Parameter Emulation with Power Delay Profile feature allows the user an advanced method to enter and play back data emulating dynamic channel models. • Fine delay resolution makes TAS 4500 suitable for testing mobile, wireless LAN, and PBX applications. • Built-in configurations for industry-standard test procedures, • GPIB and RS-232 control ports make it easy to include TAS 4500 in automatic test systems. • Field-upgradeable PCMCIA System Software Card allows quick and easy access to the latest firmware revisions and features. • Flexible architecture provides easy configuration of test setups for 2, 4, or 8 branch diversity receivers.
Questi manuali sono disponibili per l'attrezzatura di cui sopra:
|Telecom Analysis Systems, Inc. -- TAS 4500 -- Manuale d'uso|
|Tipo manuale:||Manuale d'uso|
|Dimensioni:||9.22 Mbytes (9666120 Bytes)|
|Data:||01 luglio 1997|
|Qualità:||Documento scansionato, tutto leggibile.|
|Data di aggiunta:||05 febbraio 2017|
|Downloads:||57 dal 05 febbraio 2017|
This manual applies to the TAS 4500, Version 43 and higher
|Avviare il Download gratuito|
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