PRODUCT SPECIFICATIONS Bifilar Helical Antenna ASC Signal Corporation’s Bifilar Helical Antenna is widely used for satellite communications. This antenna is engineered to assemble rapidly and is rugged enough to survive in winds up to 115 mph without ice and 95 mph with 1/2 inch of ice. This antenna is available in left hand or right hand circular polarizations with different mounting arrangements. SPECIFICATIONS Frequency Range . . . . . . . . 245-315 MHz Azimuth Adjustment . . . . . . . . . . . 360˚ Gain, Nominal at 280 MHz . .12.5 dBic Elevation Adjustment . . . . . . . . . . 90˚ Size Assembled Antenna Length . . . . . . . . . . . . . . 122 in (3100 mm) Group Plane Diameter . . . . . . . . . . . . . . 39 in (990 mm) VSWR Wind Survival, No Ice . . . . . . . . . 115 mph Part Number (R.H. Circular Polarization) . . . . . . . . . 63305A-5 Weight Part Number (L.H. Circular Polarization). . . . . . . . . . 63305A-6 . . . . . . . . . . . . . . 1.5 Maximum Beamwidth E-Plane . . . 34˚ H-Plane . . . 43˚ Axial Ratio, Nominal . . . . > 2 dB Input Connector . . . . . . . . . Type N (Female) ASC Signal Corporation Antenna . . . . . . . 34 lb (15.5 kg) Counterweight . . . 43 lb (19.5 kg) Tilt Mount . . . . . . 10 lb (4.5 kg) Tripod Assembly . . 29 lb (13.2 kg) Internet: www.ascsignal.com NATO Stock Number . . . . . . . . . . . . . . . . . . . . 5985-01-136-0180 All designs, specifications and availabilities of products and services presented in this bulletin are subject to change without notice. ASC-MGR5 © 2007 ASC Signal Corporation