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| Filtered Low Noise Ampli er SPECTRUM MICROWAVE P/N: 310-025109-012 For GPS Applications 1227 MHz/1575 MHz This series of Low Noise Amplifiers provides a filtered, low-noise gain solution ideal for applications where higher reliability is critical. These filtered low noise amplifiers are designed to reduce out-of-band interference while achieving high dynamic range. A pair of diplexed 3-pole ceramic filters select only the desired GPS signals while the low-noise gain stage maintains the receiving system's sensitivity. The LNA rejects undesired signals by at least 40 dB at 1050, 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: 310-025109-012 Typical Performance Speci cations Frequency. . . . . . . . . . . . . 1575.42 MHz (L1) 1227.60 MHz (L2) Bandwidth . . . . . . . . . . . . 30 MHz min. Noise gure . . . . . . . . . . . 2.5 dB max. VSWR . . . . . . . . . . . . . . . 1.5:1 max. Gain . . . . . . . . . . . . . . . . 45 dB +/-3.0 dB Gain Flatness . . . . . . . . . . +/-0.5 dB Rejection . . . . . . . . . . . . . 40 dB @ 1050, 1410, 1710 MHz Bias . . . . . . . . . . . . . . . . . Coaxial Bias DC Power . . . . . . . . . . . . 16-32 VDC Temperature Range. . . . . . -40C to +71C All specifications above measured at 25C 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"o x 0.080"H excluding connectors Chassis is machined aluminum with a nickel plate finish. Block Diagram CERTIFIED 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.SpectrumMicrowave.com Filtered Low Noise Ampli er 1227 MHz/1575 MHz Ampli er Gain 45 Return Loss 0 DB(|S[1,1]|) Gain in dB -1 DB(|S[2,1]|) Loss in dB 22 -10 -20 DB(|S[2,2]|) -24 1051 1251 1451 Frequency (MHz) 1651 1751 -30 1051 1251 1451 Frequency (MHz) 1651 1751 Dimensions (inches) 1.00 o2.72 4X o .17 thru 2X SMA Female Connector 1.79 .51 2.15 J1 J2 1.36 .51 2.20 .80 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.SpectrumMicrowave.com |
Price & Availability of 310-025109-012
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