Amplifiers

CDMA Repeaters
 The SelectAmp™ CDMA models 1900-1, 1900-1H and 1900-1HD channel-selective, bidirectional amplifiers provide signal level enhancement in the 1900 MHz PCS frequency range. These amplifiers are typically used by wireless service providers and original equipment manufacturers to enhance coverage throughout buildings, distribute signals to null areas and extend PCS networks along highways or long corridors. The three new amplifiers have channel selectivity to provide immunity from interfering signals, and provide 2 or 8 W of output power in the forward and reverse directions. The repeaters can be purchased separately or as part of a kit comprising the repeater, antenna, cable and all the ancillary equipment needed to install a repeater site. Optional features include remote access and monitoring using the graphical user interface and battery backup for service up to two hours.
Andrew Corp.,
Orland Park, IL
(800) 255-1479.

Solid-state RF Amplifiers
 These three new series solid-state microwave RF amplifiers feature more power and narrower bandwidth than the company's three existing S series. The models 120S1G3, 60S1G3 and 30S1G3 offer frequency response from 1 to 3 GHz and provide 120, 60 and 30 W minimum power, respectively. Like the other S series amplifiers, these amplifiers also feature infinite SWR tolerance, more than minimum power at 3 dB compression, flat output and low harmonics. New this year on these and other amplifiers from the company are digital front panels with IEEE-488 and RS 232 interfaces. Prices: $67,000 (120S1G3); $35,000 (60S1G3; $18,000 (30S1G3).
Amplifier Research,
Souderton, PA
(215) 723-8181.

50 W GaAs FET Power Amplifier
 The model ARD88258-50 GaAs FET power amplifier operates over the 800 to 2500 MHz frequency band with 50 W of output power at the 1 dB compression point. Gain is 47 dB (min) with noise figure of 10 dB (typ). An integral IEEE-488 interface provides full monitoring and control of all amplifier functions.
Comtech PST,
Melville, NY
(516) 777-8900.

400 W C-band Solid-state Power Amplifier
 The model SPA-5964-400-26401 solid-state power amplifier features class A linearity, gain and temperature compensation, an integral thermal management system and control and monitoring functions and is microprocessor controlled. Operating over ther 5.850 to 6.425 GHz frequency band, the amplifier provides saturated output power of 56 dBm (min), gain of 70 dB at 25°C, input/output SWR of 1.25 and noise power output of -55 dBm. N-type connectors, a WR137 with CPR137 flange and a six-way panel plug are included. Operating ambient temperature is 0° to +50°C. Applications for the amplifier include satellite communication terminals, traveling-wave tube amplifier retrofits and very small aperture terminal hubs.
Pascall Electronics Ltd.,
Ryde, Isle of Wight, UK
+44 (0) 1983 817425.

Drop-in Power Amplifier
 The model MSH-4314701-DI solid-state drop-in power amplifier delivers 31 dBm of output power across the 5.0 to 5.4 GHz frequency band. Designed to give system designers larger package amplifiers at a lower cost and with better space efficiency, the amplifier is unconditionally stable and designed with GaAs FETs and hybrid technology. Maximum noise figure is 5.0 dB, gain is 24 dB and input/output SWR is 2.0. The amplifier has a current of 800 mA (typ) and requires a single regulated voltage of +10 V DC while providing reverse-polarity protection. Delivery: stock to four weeks (ARO).
Microwave Solutions Inc. (MSI),
National City, CA
(619) 474-7500.

Multi-octave Band LNA
 The model JCA26-300P low noise amplifier (LNA) provides a low noise figure over multi-octave bands and covers the 2 to 6 GHz frequency band. Minimum gain is 30 dB, maximum gain flatness is +/-1.5 dB, typical noise figure is 2.0 dB, input/output SWR is 2.0 and output power is +10 dBm. Customized specification requirements are available. Delivery: two to three weeks (ARO).
JCA Technology Inc.,
Camarillo, CA
(805) 445-9888.