The Lorch GPS pre-amplifier is a modern high performance preamplifier. It incorporates a pair of three pole dielectric filters to select only the desired GPS signals, while rejecting unwanted out-of-band signals. The low noise gain stage maintains the receiver sensitivity to guard against loss of GPS signal, typical specifications are 26 dB gain and 2.0 dB maximum noise figure. The unit is powered by DC applied to the center conductor of the output connector. The pre-amp may also be powered by an external DC bias.

Performance Frequency 1575 MHz (L1) 1227 MHz (L2) Bandwidth 30 MHz min. Noise Figure < 2.0 dB VSWR 1.5:1 Gain 26 dB DC Power 5-15 V @ 75 mA