1) dielectric antenna Center frequency: 1575.42 mhz V.S.W.R: 1.5:1 Band width : 5 mhz Impendence : 50 ohm Peak gain : 3dbi based on 77cm ground plane Polarization type : r.H.C.P. 2) lna/filter Lna gain(w/o cable) : 282 db typical Noise figure : 1.5 db Dc voltage : 2.2~5 v Dc current : 5~15 ma. 3) mechanical Size : d46*15mm Mounting : screw Housing : black Package : 120*95*30mm Optional cable : rg174 3m / 5m or others Optional connectors : sma / mcx / smb / fakra / bnc or others. 4) environmental Storage temp. : -45¡æ~+100¡æ Working temp. : -40¡æ~+85¡æ Humidity : 55%~75%rh Waterproof : ip67. Bags/cartons.