This series of Low Noise Amplifiers provides a filtered, low-noise gain solution ideal for applications where higherreliability is critical.These filtered low noise amplifiers aredesigned to reduce out-of-band interference while achievinghigh dynamic range.

A pair of diplexed 3-pole ceramic filters select only thedesired GPS signals while the low-noise gain stagemaintains the receiving system’s sensitivity.

The LNA rejects undesired signals by at least 40 dB at1050, 1410, and 1710 MHz.See the graphs on Page 2 for return loss, rejections, and gain of a typical unit.The preamplifier is powered by DC voltage applied to the center conductor of the output connector.Optionally,the unit can be powered through an external DC bias connector.

P/N:

310-025103-011

Typical Performance Speci cations

Frequency. . . . . . . . . . . . . 1575.42 MHz (L1)

1227.60 MHz (L2)

Bandwidth. . . . . . . . . . . . 30 MHz min.Noise gure. . . . . . . . . . . 2.0 dB max.VSWR. . . . . . . . . . . . . . . 1.5:1 max.Gain. . . . . . . . . . . . . . . . 14 dB min.Gain Flatness. . . . . . . . . . +/-0.5 dB

Rejection. . . . . . . . . . . . . 40 dB @ 1050, 1410, 1710 MHzBias. . . . . . . . . . . . . . . . . Coaxial BiasDC Power. . . . . . . . . . . . 5-16 VDCTemperature Range . . . . . . -40 C to +71 C

All specifications above measured at 25 C

Features and Bene ts

Noise figure 1.6 dB typical

Double-diplexed preamp filters Lightweight aluminum housing

Dual band (L1 and L2) performance Coaxial and external bias options Environmental sealing available

Application specific packages available Suitable for new L2-C signals

L5 configurations available upon request

Dimensions and Connections

Antenna port J1 Receiver port J2

SMA type female connectors

2.20"ø x 0.080"H excluding connectors

Chassis is machined aluminum with a nickel plate finish.

Block

Diagram

SPECTRUM MICROWAVE 38166 Old Stage Road Delmar, Delaware 19940 Phone:302-846-2750 Fax:302-846-3888

SPECTRUM MICROWAVE 2707 Black Lake Place Philadelphia, Pennsylvania 19154 Phone:215-464-4000 Fax:215-464-4001

www.1mpi.com