Bifilar Helical Antenna

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