Oct 1, 2001 12:00 PM

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Gtran Wireless has enhanced its product offerings to include GPRS and Wi-Fi. Connecting at speeds greater than 56K, the DotSurfer CardReader allows customers to connect the DotSurfer PCMCIA modem card to their desktop computers, and there’s no need for cable, DSL or phone line. The products allow for high-speed Internet access from any desktop, laptop or PDA with one Internet service.
www.gtranwireless.com

Expandable Battery Plant
The Gravitas Ranger 400 computer-telephony integrated power system from Unipower comes in several versions that are all expandable to meet the growing needs of small and medium installations. The product has a maximum output capacity of 400A at 48Vdc or 800A at 24Vdc. It incorporates up to eight high-density, hot-swap rectifier modules; each module produces 50A at 54.4Vdc or 100A at 27.2Vdc. They operate from a 170-to-240Vac single or 3-phase power source at 45Hz-65Hz. At slightly less output current, 350A at 54.4V or 700A at 27.2V, the system can be operated with N+1 redundancy. The complete system consists of two rectifier shelves with up to eight rectifier modules, up to six battery trays, optional ac breakers for each rectifier module, a control and monitoring system, a low-voltage disconnect and a dc circuit breaker distribution panel with up to 20 breakers.
www.unipowertelecom.comor 954-346-2442

The Gravitas Ranger 400 integrated power system from Unipower comes in a standard 7-foot, free-standing cabinet.

Advanced Wireless Mapping
Tierravision has incorporated Geographic Data Technology’s street data into its Micromap, an advanced wireless mapping product supporting real-time downloads of map data and content for wireless devices. GDT will provide the United States and Canadian street information that allows Tierravision Micromap to display maps and provide geographically relevant, real-time content over wireless devices running PocketPC, Palm, J2ME and other operating systems. With the mapping product, users can find addresses, zoom in and out of specified area and download real-time information such as highway traffic or weather reports.
www.geographic.com

Transceiver
The low-latency Zeus wireless spread-spectrum transceiver from RF Neulink is fast and reliable with a new time of 5.8ms per hop period. It includes features such as forward-error correction, full-duplex handshaking and addressability, and is suitable for point-to-point and point-to-multipoint systems. The transceiver can be used when the need for reliable low-cost license-free operation is needed. Operating at speeds up to 19,200kbs, it works for SCADA systems or control of non-real-time needs such as pumps or motors in oil, gas, water and waste-water plants.
800-233-1728 or rfneulink@rfindustries.com

The Zeus wireless spread-spectrum transceiver from RF Neulink provides easy installation.

Telecom Risk Model
Spectrum is a wireless telecommunications risk model from TransUnion that predicts the likelihood of a wireless account becoming 60 days delinquent or worse within the next six months. The score ranges from 037-823, where the higher the score, the lower the risk that the consumer will go 60 or more days past due on the account. The product is helpful in setting deposit levels, cross and up-selling and risk management. It can be used when soliciting new wireless accounts. Whether a prescreen or extract is conducted, Spectrum can be provided as a standalone criteria or an additional criteria level.
www.transunion.com or 800-626-2341

Yagi Antenna
The new enclosed yagi antenna from Antenex is solidly constructed and cannot be opened or modified by unqualified personnel. This 2.4GHz antenna has a directional 12.5dBd gain with an outdoor-rated tubular radome. A heavy aluminum mounting plate ensures long-term survivability. The rigid laser-cut internal element yields greater performance than stamped or printed circuit versions, and the antenna has a VSWR of <2.0:1 from 2.4GHz to 2.48GHz.
www.antenex.com or 630-351-9007

An enclosed yagi antenna from Antenex can be mounted outdoors in the harshest weather conditions.

Data & Voice Modem
The CDM-810 from SeMax Wireless is a dual-band, tri-mode RS-232 data and voice modem for CDMA wireless technology providing real-time data transmission within a small, rugged package. Also included is the built-in 14.4kb/s TCP/IP asynchronous, class 2.0 digital fax. The unit operates like a landline computer modem for data-ready CDMA systems. The modem also is designed for use with an ear microphone for voice communication, allowing for preprogrammed numbers and 911 calls. The SeMax engineering team has created an automatic vehicle location (AVL) software package for the CDM-810 that, when connected to the Garmin GPS-35, provides an easy-to-install AVL solution for cellular and PCS networks that support 2-way SMS messaging.
www.semaxwireless.com

MDS/MMDS Diplexer
Model 14135 diplexer from Microwave Filter combines MMDS transmit and MDS receive frequencies on a single line while providing mutual isolation for MDS from MMDS transmit and wireless phone interference. The diplexer offers less than 1dB insertion loss with a VSWR of 1.35:1 (receive) and 1.2:1 (transmit). The unit provides mutual isolation of 80dB (minimum) at the receive port and 85dB (minimum) at the transmit port. The diplexer is configured with type N (female), 50W connectors as a standard.
www.microwavefilter.com or 800-448-1666

Model 14135 diplexer from Microwave Filter measures 12" x 2" x 7.5".

RF Design Software
SoftWright’s Version 4.4 of the Terrain Analysis Package (TAP) for Windows consists of 24 modules that combine to bring a broad compatibility of RF-system design to the PC. The most fundamental module is the Basic Mapping Module, which handles the path terrain profiling work. For more sophisticated RF studies, add the RF Facilities Module and one or more of the additional 22 application-specific Version 4.4 modules. TAP is used to perform evaluation of existing or proposed radio transmitter sites and radio coverage predictions.
www.softwright.com or sales@softwright.com

RF Lightning Protection
The AirGuard line of RF lightning protection from Atlantic Scientific includes a wideband 870MHz to 2,000MHz, quarterwave stub that provides easy migration to new frequencies. The line also includes economical narrowband quarterwave stub technology to protect cellular, PCS and trunking applications, as well as gas tube protectors for dc to 4GHz applications. The protectors are sealed, weatherproof, rugged and available in all popular connector styles, including F connectors. For GPS, MMDS and LMDS broadband applications, the solid-state dc models provide low surge let-through voltage.
800-544-4737 or info@atlanticscientific.com