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...reasonable and timely solutions for the most difficult
engineering requirements
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TMC Design
Corporation offers GPS antennas providing continuous coverage from 1.2 GHz to
1.6 GHz.
The antennas are
available in directional and Omni-directions packages along with linear or RHCP
polarizations. |
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FS-1050 RHCP GPS Antenna |
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Picture |
Model |
Features |
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FS-1050
1.2 to 1.6 GHz GPS Antenna
Threat Representative
Linear Polarization
Rugged Construction

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The FS-1050 is a wide
band, flat spiral transmit and receive antenna contained within
a rugged, sealed epoxy-glass radome. The result is an exact
threat representative antenna in a robust package with standard
type-N connectors. The antenna is available in a high power
version and with a deployable tower mount. The unit is also
available with internal modulator and amplifier to operate as a
stand alone jammer system.
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Electrical Specifications |
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Model: |
FS-1050 |
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Frequency: |
1.2-1.6 GHz |
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Gain: |
7
dBiC |
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Power Handling: |
25
watts (CW), high power version available |
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Polarization: |
RHCP |
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VSWR: |
1.5:1 typical 2.0:1 maximum |
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Beamwidth: |
65
x 65 degrees (center frequency) |
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Mechanical
Specifications |
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Dimensions: |
11.0” x 11.0” x 3.0” (27.9cm x 27.9cm x 7.6cm) |
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Weight: |
5.25 lbs. (2.38 kg) |
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Temperature: |
-20° to +150° F (-28.8° to 65.5° C) |
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Environmental: |
Harsh |
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Connector: |
Type-N (other types available) |
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DS-0300 Disk Spiral GPS Antenna |
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Picture |
Model |
Features |
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DS-0300
1.2 to 1.6 GHz GPS Antenna
Threat Representative
Linear Polarization
Rugged Construction

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The DS-0300 is a wide
band, small biconical spiral transmit and receive antenna
contained within a rugged, sealed epoxy-glass radome. The result
is an exact threat representative antenna in a robust package
with standard type-N connectors. The antenna is available in a
high power version and in a wide variety of mounting options
including vehicular magnetic mount or with a deployable tower
mount.
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Electrical Specifications |
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Model: |
FS-1050 |
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Frequency: |
1.2-1.6 GHz |
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Gain: |
2.39 dBiL |
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Power Handling: |
50
watts (CW), high power version available |
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Polarization: |
Linear (typically vertical) |
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VSWR: |
1.5:1 typical 2.0:1 maximum |
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Beamwidth: |
360
x 90 degrees (center frequency) |
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Mechanical
Specifications |
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Dimensions: |
4.0” x 3.0” x 3.0” (10.16cm x 7.62cm x 7.63cm) |
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Weight: |
2.2 lbs. (.998 kg) |
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Temperature: |
-20° to +150° F (-28.8° to 65.5° C) |
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Environmental: |
Harsh |
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Connector: |
Type-N (other types available) |
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HE-238 Helical GPS Antenna |
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Picture |
Model |
Features |
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HE-238-8
HE-238-10
HE-238-13
1.2 to 1.8 GHz GPS Antenna
High Power
Single or Dual Helix
Rugged Construction

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The
HE-238 is a high power, wide band severe duty antenna for both
military and commercial applications. The antenna is constructed
entirely of aircraft certified 6061-T6 aluminum and G-10
fiberglass with copper radiator in a 100% sealed radome. They
are available as a single helix or as a dual mounted pair of
tower mounted antennas (shown left). Several options are
available for the tower mounted antennas including motorized
azimuth rotators and adjustable elevation mounts. These antennas
will provide years of trouble free service in the most sever
environments and are currently in use by several U.S. Military
installations in remote locations.
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Electrical Specifications |
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Model: |
HE-238 |
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Frequency: |
1.2-1.8 GHz |
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Gain: |
HE-238-8 10.5dB
HE-238-10 11.5 dB
HE-238-13 13 dB |
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Power Handling: |
500
Watts |
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Polarization: |
RHCP |
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VSWR: |
2:1
maximum (See Graph) |
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Beamwidth: |
HE-238-8 40° HE-238-10 35°
HE-238-13 30° |
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Mechanical
Specifications |
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Dimensions: |
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Weight: |
(dual mount) 21 lbs. |
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Temperature: |
-20° to +150° F (-28.8° to 65.5° C) |
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Environmental: |
Harsh |
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Connector: |
Type-N (other types available) |
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Azimuth Movement: |
360
x 90 degrees (center frequency) 360
deg, w rotator |
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Elevation
Movement: |
-15 to 15 deg, manual |
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Helicone Antenna (1.2 - 1.6 GHz) |
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Picture(s) |
Model |
Features |
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HC-238-13
Helicone Antenna
1.2 GHz - 1.6 GHz
L-Band Frequency
RHCP Polarization
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The HC-238-13 antenna is a high-power L-Band Helicone antenna that uses
a helix-conical horn combination. This combination provides low side
lobe levels while keeping a solid gain.
RHCP
Low sidelobe
level
High Power
Rugged design
Anechoic Chamber
tested
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Electrical Specifications
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Model: |
HC-238-13 |
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Frequency:
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1200—1600 MHz |
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Gain (dB):
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14.7 @ L2, 13.1 @ L1 |
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Power Handling:
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500 watts CW |
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Polarization:
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Circular (RHCP) |
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VSWR: |
2.0:1 maximum |
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HPBW: |
33.5º @ L2, 30º @ L1 |
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Sidelobe:
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-31 dB @ L1, -28 dB
@ L2 |
Mechanical Specifications
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Model: |
HC-238-13 |
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Dimensions:
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24.5” diameter x
23.5” length |
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Weight: |
17.5 lbs |
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GPS Direction Finding Antenna |
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Picture |
Model |
Features |
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HE-238-165-HH
1.2 to 1.6 GHz GPS Directional Antenna
Threat Detection
Electronic Warfare
Rugged Construction

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The HE-238-165-HH is
a hand held directional antenna. The antenna is constructed
entirely of aircraft certified 6061-T6 aluminum and G-10
fiberglass with copper radiator in a 100% sealed radome.
This antenna was
custom matched from 1.2 to 1.6 GHz to have the lowest VSWR
possible, achieving a 2: 1 VSWR across the band. The antenna is
designed to provide many years of service.
TMC Design
Corporation offers custom direction finding antennas to aid
finding transmitted signals. Our DF antennas are currently in
use by U.S. Government agencies for EW systems.
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Electrical Specifications |
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Model: |
HE-238-165-HH |
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Frequency: |
1.2-1.6 GHz |
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Gain: |
15
dBi (Fo) |
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Power Handling: |
RECEIVE ONLY |
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Polarization: |
RHCP |
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VSWR: |
2.0:1 maximum |
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Beamwidth: |
27°
degrees (Fo) |
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Mechanical
Specifications |
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Dimensions: |
7” x 35” |
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Weight: |
5.25 lbs. |
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Temperature: |
-20° to +150° F (-28.8° to 65.5° C) |
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Environmental: |
Harsh |
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Connector: |
Type-N (other types available) |
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