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Jessup, MD 20794

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Antenna Animation Antenna Design & Manufacturing Corporation
1-301-498-1140
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VHF/UHF SATELLITE COMMUNICATION ANTENNAS

 

1.      VHF/UHF SATCOM ANTENNA, MODEL ADM-C2

 

Model ADM-C2 is a quick setup, less than 3 minutes and easy to store, transportable, light weight crossed Yagi satellite communication (SATCOM) antenna designed for the frequency range from 240 to 318 MHz.  The antenna is right hand circularly polarized with an axial ratio of less than 3 dB at –3dB beamwidth points.  The antenna produces a horizontal beam width of 6 to 26 degrees at  - 3 dB points and 11 to 46 degrees at –10dB points with sidelobe suppression of greater than 12 dB.  ADM-C2 has a minimum power gain of 10 dBi at 244 MHz and 14 dBi at 318 MHz and is capable of handling 200 Watts of Cw power.  The SWR of the antenna less than 1.5:1.0 over the frequency range with a nominal impedance of 50 Ohms.

 

ADM-C2 mounts on a tripod with adjustable leg length.  The antenna can be positioned in azimuth over 360 degrees and elevation can be adjusted over 0 to 90 degrees in 10 degree increments.  Tripod legs support a ballast on which a radio or sand bag can be placed.

 

SPECIFICATIONS

 

Frequency:                                          240 to 318 MHz

Polarization:                                          RHC

Axial Ratio:                                       < 3 dB @ -3 dB points

Beamwidth:                                          6-26 degrees @ -3 dB points

                                                            11-46 degrees @ -10 dB points

Sidelobe:                                              >12 dB suppression

Pattern:                                     Directional

Impedance:                                          50 Ohms nominal

SWR:                                                   1.5:1.0

Power Gain (min)                            Varies from 10 dB at 240 MHz to 14 dBi at                                                                     318 MHz

Power:                                                 200 Watts

Connector:                                           Type “N” male

RF Cable:                                      One Coaxial cable for radio connection                                                                     (L=12.5’)

 

Length:                                     96” deployed

Size of Case:                                        37” L x 13” W x 13” H

Weight:                                     40 pounds including tripod & carrying case

Assembly Time:                            < 3 minutes

Finish:                                                   Antenna – Black or Olive drab

                                                            Tripod – Black

                                                            Case – Black

Note:  This antenna performs similar or better than Dorne and Margolin SATCOM antenna DM SE 77 series and Trivac-Avent Model AV 2011.

 

2.      HIGH GAIN SATCOM HELICAL ANTENNA, MODEL ADM-C5

 

ADM Corporation’s Helical Antenna has been designed to meet the requirements for a fully militarized high gain base station SATCOM Antenna.

 

Model ADM-C5 is a Right Hand Circularly polarized helical antenna of very rugged construction, designed to operate under the most difficult operating conditions of high wind, ice or snow.  The helical antennas  are built to withstand wind speeds to 60 knots while coated with two inches ice.

 

The aluminum antenna mast Model MAST-C5 (optional) can be used to set antenna elevation from the horizontal to the vertical, and azimuth may be adjusted through 360 degrees.

 

SPECIFICATIONS

 

Frequency:                                          240 to 325 MHz

Polarization:                                          RHC

SWR:                                                   <2:1

Power:                                                 200 Watts minimum

Input Impedance:                              50 Ohms nominal

Power Gain:                                        10 dBic

Beamwidth:                                          55-60 degrees

RF Connector:                                           Type “N” male or female

Mounting:                                            3” IPS pipe mount

Finish:                                                   MIL-SPEC Olive drab, white or gray

Length:                                     60”

G.P.Diameter:                                     40” (G.P. is ground plane)

Weight:                                     30 pounds

 

OPTIONS

 

·        ADM offers 13 and 16 dBic HIGH GAIN SATCOM Antennas.  Please call us for details.

·        Mast, Model MAST-C5

·        Heavy duty bolt down base

·        Radome

·        Custom design for any frequency and any power gain

 

3.      GROUND/SHIPBOARD/MOBILE SATCOM ANTENNA, MODELL ADM-

C25/HM

 

Model ADM-C25/HM antenna is a low silhouette/profile hatch/ground/shipboard/mobile SATELLITE COMMUNICATION (SATCOM) ANTENNA designed for the frequency range from 225 to 400 MHz.  The antenna is right hand circularly polarized and produces hemispherical (broadbeam) radiation pattern in the upper half of the sphere.  The antenna has a nominal power gain of +3dBic and it is capable of handling 200 watts of Cw power.  The SWR of the antenna is less than 1.5: 1.0 with a nominal impedance of 50 Ohms.

 

The antenna is protected from damage and environment by a dome shaped fiberglass radome.

 

SPECIFICATIONS

 

Frequency:                                          225 to 400 MHz

Polarization:                                          RHC

Axial ratio:                                         3 dB

Pattern:                                     Unidirectional beam

Beam Coverage:                                Hemispherical (broadbeam)

Impedance:                                          50 Ohms

SWR:                                                   1.5:1.0 maximum

Gain:                                                    3 dBic

Connectors:                                          RF Port – Type “N” male

                                                            Load Port – TNC female

Height:                                                  6.25”

Diameter:                                            23” for basic antenna;

                                                            30” for extended ground plane

Weight:                                     13 pounds maximum

Mounting:                                            12, 0.312 DIA.  Holes equally spaced on

                                                            22.1” DIA. B.C. for basic antenna;

                                                            24, 0.281 DIA. Holes equally spaced on

                                                            29.0” DIA B.C. for extended G.P. antenna

Color:                                                   Olive drab or Black

 

OPTIONS

 

·        Cylindrical radome with 16.75” diameter ground plane

 

4.      VHF/UHF SATCOM MANPACK ANTENNA, MODEL ADM-C8A

 

Model ADM-C8A is a quick setup, easy to store, and easily transportable, lightweight VHF/UHF SATELLITE COMMUNICATION            MANPACK ANTENNA designed for the frequency range from 240 to 400 MHz.  The antenna is RHC polarized with an axial ratio of less than 3 dB.  The antenna produces unidirectional radiation pattern with a nominal power gain of 7 dBic, and with two extensions for a total of six director elements a power gain of 11 dBic.  The SWR of the antenna is less than 1.5:1.0 with a nominal impedance of 50 Ohms.  The antenna is capable of handling 200 Watts of CW power.

 

ADM-C8A mounts on a strong, lightweight tripod.  The legs of the tripods are of two section telescopic type, which are when fully extended are 27” long.  The antenna can be positioned in any azimuth position and elevation can be adjusted in 10 degree steps.  For this purpose a gear wheel’s are used.  The long tripod oscillation of the antenna under combined extension and wind loads, at all elevations and azimuth angles.

 

SPECIFICATIONS

 

Frequency:                                          240 to 400 MHz

Polarization:                                          RHC

Axial ratio:                                         3 dB

Radiation Pattern:                         Unidirectional

Impedance:                                          50 Ohms

SWR:                                                   1.5:1.0 maximum

Power gain:                                         Basic – 7 dBic, with one extension – 9 dBic,                                                    and with two extensions – 11 dBic

Power:                                                 200 W

Connector:                                           BNC male

RF Cable:                                      2, 150” long coaxial cable for radio                                                                            connection with mating connectors at each

                                                            End

Length:                                     15” collapsed

Weight:                                     7 pounds including everything

Assembly time:                             < 1 minute

Color:                                                   Black or olive drab

Carrying case:                                      20” L x 6.25” W x 6.25” D

Case Material:                                               Water resistant canvas/nylon

Case color:                                        Black or olive drab