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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
Corporations 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 wheels 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
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