cdma2000/CDMA 測試
分碼多工存取 (CDMA) 技術也和產業需求一樣演進和趨於成熟,這是一項以 TIA/EIA IS-95 CDMA 標準 (包括 IS-95A 和 IS-95B 版本) 為基礎的數位蜂巢技術,CDMA 最早推出時是做為語音通訊的解決方案,採用了使用數位碼的直接序列調變,以擴展其頻譜。
隨著使用者設備和應用的演進,cdma2000 取代了 CDMA,cdma2000 是由電信產業協會 (Telecommunication Industry Alliance) 開發的技術,支援電路切換語音通訊,以及單一 1.25 MHz 通道中最高達 307 kbps 的封包資料速率。
另一項從 CDMA/cdma2000 演進而來的技術是 1xEV-DO (1x Evolution,僅限資料)。如需關於這項 cdma2000 空中介面增強技術 (經過最佳化,適用於封包資料傳輸) 的詳細資訊,可參閱安捷倫 1xEV 技術網頁 1xEV-DO Test
安捷倫科技提供 cdma2000/CDMA 產品、解決方案和服務,適用於參與設計、整合、製造的工程師與技術經理,以及新一代網路的效能。因此,在您邁向 CDMA 時,安捷倫為您鋪路。
cdma2000 為電信產業協會 (Telecommunications Industry Association) 的註冊認證商標。經授權使用。
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Agilent Technologies Announces Wireless Communications Test Set with Innovative Multiport Adapter
Agilent Technologies introduced the E6607B EXT wireless communications test set and companion E6617A multiport adapter. Optimized for non-signaling testing, the EXT/MPA combination increases test throughput and reduces the cost of test in the manufacturing of current- and next-generation smartphones and tablets that contain multiformat and multiband technologies.
新聞資料 2012-08-01 |
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Agilent Technologies Introduces 6-GHz Signal Generators with Industry-Best Performance
Today's aerospace/defense environment requires enhanced radar performance to detect weak signals at long distances. To provide the pure and precise signals needed to test these designs, the MXG uses an innovative triple-loop synthesizer to deliver phase noise performance of -146 dBc/Hz at 1 GHz and 20 kHz offset. For developers of radar components such as mixers and analog-to-digital converters, the MXG also features industry-leading spurious performance of -96 dBc at 1 GHz.
新聞資料 2012-05-01 |
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Agilent Technologies Now Supports Real-Time Fading with PXB and Wireless Communications Test Set
Agilent Technologies Inc. (NYSE: A) today introduced a real-time 2G/3G fading solution that features a direct digital connection between the N5106A PXB baseband generator and channel emulator and E5515C 8960 wireless communications test set.
新聞資料 2010-09-28 |
