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DEVICES Zero-bias Schottky Diode The model ASI-3486 zero-bias Schottky diode is designed as a replacement part for the recently discontinued Hewlett-Packard model HSCH-3486 and M/A-COM model MA4E928B-54 zero-bias units. The silicon diode features hermetic glass packaging and is designed for high sensitivity applications up to 10 GHz. The unit...

SOURCES Rubidium Frequency Source The Rhino series portable rubidium-based frequency source is designed for both field andlaboratory utilization. Outputs for CDMA equipment include 19.6608 MHz, 1 PPS, phase-adjustable 1 PPS and 1/2 PPS synchronized to UTC. The frequency source includes eight buffered 10 MHz outputs with rubidium standard stability....

INTEGRATED CIRCUITS 2.4 - 2.5 GHz WLAN Chipset The Waverider 2 series wireless local area network (WLAN) chipset operates in the 2.4 to 2.5 GHz ISM band and consists of a wireless data controller (model WL102B), 2.4 to 2.5 GHz RF and IF circuit (model WL600C) and 2.5 GHz...

TEST EQUIPMENT Signal Analyzers The FSIQ series signal analyzers offer fully integrated spectrum, modulation and time analysis for wideband CDMA applications and wireless standards, including GSM, IS-136 and IS95-CDMA. Three models are available with different frequency bands, including the 20 Hz to 3.5 GHz model FSIQ3, 20 Hz to...

SUBSYSTEMS Receive Switch Matrix The SWRxxx series receive switch matrix is designed for use in relay cell local multipoint distribution service wireless systems where two receivers are used. The unit provides monitoring of the receiver's critical operating parameters and provides microprocessor-controlled automatic switching to a hot-standby receive path. The...

SOFTWARE Filter Design Programs The PCFILT and S/FILSYN filter design programs have been upgraded to operate under the 32-bit Windows '95/'98/NT operating systems. PCFILT has been fully converted to a true Windows program, allowing it to take advantage of the features of these new operating systems. While still DOS...

News From Washington Iridium Network to Serve Defense Personnel The Defense Information Systems Agency (DISA) has installed a dedicated ground station at the Naval Computer and Telecommunications Area Master Station-Pacific, Honolulu, HI, to act as a terrestrial gateway for Department of Defense (DoD) users of the global Iridium cellular...

International Report Netherlands Moves Frigate Programme Forward With Radar Contract Following its selection of Racal's Sabre electronic support/countermeasures system (see page 45 in the January issue of Microwave Journal), the royal Netherlands navy's de Zeven Provincien class frigate programme has progressed further with the receipt of a new radar...

Commercial Market 1998 US Digital Handset Sales Surpass Analog According to a recent report released by Dataquest, a unit of GartnerGroup Inc., US digital handset sales reached 10.1 million units through the first three quarters of 1998 compared to the sale of 7.9 million analog handsets during the same...

The Book End Digital Communications: Design for the Real World Andy Bateman Addison-Wesley Publishing Co. 221 pages plus CD ROM; $59.95, £24.95 Much of today's electronic communications utilizes some form of digital modulation. Communications equipment design engineers now must be thoroughly familiar with these techniques and their effects on...