Qualcomm Inc. announced the availability of a single-chip vocodor that utilizes PureVoice, the latest version of the 13 kilobit Qualcomm Code Excited Linear Predictive speech coding algorithm. PureVoice was developed for use in Qualcomm’s cellular and personal communications services products featuring the company’s Code Division Multiple Access technology. Qualcomm said the PureVoice, as a single-chip solution, is ideal for a wide range of voice compression applications including voicemail, land mobile radios, satellite communications, secure communications and high-compression digital recording. The vocoder detects when the background noise level changes and adjusts its test parameters to maintain the optimal data rate and voice quality. Qualcomm said the user can also customize the way variable rates are chosen to meet the data rate requirements of a particular application. For telecommunications applications, an optional G-165 network echo canceller and Dual Tone Multi Frequency support are included on the chip, the company said. (619) 587-1121.
ZK Celltest announced the availability of its ZK-SAM/DX System Access Monitor in vehicular mounted configuration. The compact, fully featured system monitor allows cellular operators to view the operation of their system using a visible display module that can be permanently mounted in a vehicle. ZK said the product can display and store information such as the identification of strongest control channels and voice channels, plus their respective signal strengths. A and/or B systems can be displayed and compared, and the unit will measure Time Division Multiple Access and analog channels. Call hand-offs are also displayed along with adjacent channel interference which is identified and logged, the company said. (408) 986-8080.
The American Mobile Telecommunications Industry Association announced the introduction of a map product for all current and future 800 MHz licensees. AMTA said the GeoMap includes geographic representation of the licensees contained within the EA, detailed information on the specific counties making up the EAs, including population densities and technical and administrative information about the incumbent licensees. The maps come in five different channel formats, AMTA said. (202) 331-7773.
Intercell Corp. said it has completed the prototype installation of its wireless antenna in cellular telephones. The company said the antenna module provided operator protection from radio frequency signals when transmitting with a 90 percent reduction in radiation emission. Intercell said the prototype also showed a significant increase in transmittal reception and range, while extending the battery life of the cellular phone. The final product will not require significant modification to existing cellular phone antenna housing design and its price will be competitive, the company said. The module is being developed through the Telecommunications Research Center at Arizona State University at Phoenix. (706) 645-9400.
Mitsubishi Wireless Communications Inc. announced the introduction of AH-131, a low cost cellular phone created with first-time buyers in mind. Mitsubishi said the AH-131 will be available through retailers only, while its counterpart, the AH-129, will be sold through carriers and dealers. The 8.3-ounce model offers 105 minutes of talk time, a built-in rapid charger, automatic personal identification number operation, 11-character alphanumeric name tags, an optional hands-free headset and fraud prevention and safety features, said the company. (706) 654-3011.
The Antenna Specialists Division of Allen Telecom Group has developed a new line of land mobile antennas that can be purchased as complete assemblies for the most popular models or as individual components so dealers and distributors can stock only the items required by their customers, the company said. (216) 349-8400.
