The 81194 high speed GPS Antenna is used with HT9100, HT9000 or HT1000 GNSS Navigation Systems. The 81194 is an omnidirectional flat microstrip GPS antenna with an integral preamplifier. The 81194 is commonly used with 2101 Approach Plus and 2101 I/O Approach Plus. The 81194 is rated to 1,300 know and has a TNC connector. Use of the 81194 GPS antenna for IFR installations in aircraft equipped with satellite communication equipment should be tested to ensure no interference between the SATCOM equipment and the GPS antenna. The 81194 has a temperature range of -55° C to +85° C. The 81194 can be used in -1,000 Ft to 55,000 Ft altitudes. The 81194 requires a +5VDC @ 40 mA from NPU power. The 81194 is 3.00 in. wide, 4.7 in. long, 0.6 in. high and weighing 0.375 pounds.