Model SAT-225-400R 225 - 400 MHz 10 dBi Gain 
 

SATCOM ANTENNA

Design Features The SAT-225-400R is single mode UHF SATCOM antenna which is ideal for SATCOM On-The-Move (SOTM) operation. The SATCOM antenna can be used for communicating with satellites low on the horizon. SAT-225-400R can be used with most tactical Multi-Band, Multi-Mode Receivers (MBMMR), as well as all airborne and ground transceivers. This high-gain antenna use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference. This commercial grade antenna provides superior performance as compare to significantly larger and more expensive products. Our SAT-225-400R helical antennas are smaller than conventional yagi antenna. SAT-225-400R SATCOM antenna features of a single port high angle (RHCP) and low angle antenna system that is suitable for installation on vehicular, shipboard and ground shelter applications. No diplexer or switching is required.

Constructions The SAT-225-400R RHCP helical antennas utilizes right hand circular polarization to minimize the effects of multipath interference. The Right Hand Circular Polarized Helical Antenna is light weight, broadband and rugged helical antenna, supplied with fiberglass radome to protect the antenna from severe environmental conditions. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the helical antenna operation as well as providing an aesthetically pleasing appearance. The SAT-225-400 Helical Antenna is supplied with a specially designed mounting arrangement for steering the antenna in both planes, over 360 Degrees in Azimuth and 90 Degrees in Elevation for terrestrial and satellite links. The Antenna is highly suitable for SATCOM Satellite high angle coverage and low angle air-to-air or ground-to-air communications.

Array Formation For higher gain requirement, the Helical antenna can be supplied in DUAL stacked or QUAD stacked arrays with suitable power splitter/combiner cable harness. Copper

Electrical Specifications:
Frequency Range225 - 400 MHz
Gain10 dBi
BandwidthEntire Band
PolarizationRHCP
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points50 Degrees
Front to Back Ratio16 dB.
VSWR2.5:1
RF Power Handling Capacity500 Watts
Input TerminationN-Female

Mechanical Specifications:
MaterialsFiber Glass & Copper
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating200 KMPH
Overall Length1200 mm
Shipping Length1400 mm
Radiating MaterialCopper
Maximum Mount Pipe Diameter 60 mm
Radome MaterialFiber Glass
Radome Outer Diameter260 mm
Radome Length1200 mm
Gross Weight14 Kgs.

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 100% RH