Model 2.4m HWT High Wind Transportable

Model 2.4m HWT High Wind Transportable Antenna
Model 2.4m HWT High Wind
Transportable Antenna
Transportable Antennas
Description
The General Dynamics SATCOM Technologies 2.4-meter
motorized transportable antenna is designed for worldwide
transmit and receive operation in C, X, Ku and Ka-band.
This mobile antenna consists of a carbon fiber composite
reflector, a jack-driven elevation positioner, a gear­-driven
azimuth positioner and an aluminum support structure. This
results in a medium-weight, motorized antenna with superior
stiffness and high performance under high wind loading
conditions.
The unique shape and the accurate reflector surface
provide exceptionally low sidelobe and cross-polarization
performance well within INTELSAT and EUTELSAT
requirements. Repeatability is maintained with precision
registration of the nine reflector segments and the feed
support structure. The interchangeable feeds are palletized
for quick, easy removal and replacement, allowing the enduser to effectively change frequency bands in the field within
minutes. The complete antenna system, including a single
feed and a motorized positioner, can be packaged in nine
robust, portable cases.
Features
„„ Carbon fiber reflector provides lightweight, precision surface and
high stiffness
„„ Jack/gear-driven positioner is of carbon fiber/aluminum construc-
tion and is lightweight and sturdy
The Strength to Perform
„„ Easy deployment -- two-person assembly in less than 30 minutes,
captive hardware, precision alignment
„„ INTELSAT type approval pending, EUTELSAT and MIL-188-164A
compliant
„„ High performance, low sidelobes, high EIRP capability
Options
„„ Feeds (four-port, Co-Pol, CP/LP switchable, DBS, Ka-band, L-band)
„„ Finishes (green, tan or per customer spec)
„„ Pedestal/T-head riser for boom mounting options
„„ Lightning protection/grounding
„„ Transit cases
„„ Motorized polarization drive
„„ IFL cables
„„ Auto-acquire tracking receiver
„„ Low passive intermodulation capable
„„ Troposcatter capable
1104 Energy Drive • Kilgore, TX 75662 USA • Tel: (903) 984-7811 • Fax: (903) 984-7597 • Email: kilgore-sales@gdsatcom.com
Website: www.gdsatcom.com
655-0041C, 02/09
© 2009 General Dynamics. All rights reserved. General Dynamics reserves the right to make changes in its products and specifications at anytime and without notice. All trademarks
indicated as such herein are trademarks of General Dynamics. All other product and service names are the property of their respective owners. ® Reg. U.S. Pat. and Tm. Off.
Model 2.4m HWT High Wind Transportable Antenna
Technical Specifications
Mechanical
Azimuth Travel
Elevation Travel
Polarization Travel
Reflector Structure
Pedestal Structure
Boom Mounted Electronics Loading*
Antenna Weight
Reflector (9-piece)
Pedestal Assembly
Packaging
Feed Weights
Ka-Band Feed
Ku-Band Feed
X-Band Feed
X-Band Low PIM Feed
C-Band CP/LP Feed
C-Band CP Feed
±120° (consult factory for CFE equipment mounting)
0° to 90° (consult factory for CFE equipment mounting)
±90° (linear polarization only)
Carbon fiber reinforced polymer (CFRP)
Aluminum alloy
120 lbs. (54 kg), not including feed assembly (electronics may limit travel)
120 lbs. (54 kg)
589 lbs. (267 kg)
Consult factory for details
10 lbs. (4.5 kg)
15 lbs. (6.8 kg)
26 lbs. (11.8 kg)
46 lbs. (20.9 kg)
25 lbs. (11.3 kg)
30 lbs. (13.6 kg)
Environmental
Wind Loading
Operational (no ballast)
25 mph (40 km/h) gusting to 30 mph (48 km/h)
Operational (with ballast)
45 mph (72 km/h) gusting to 60 mph (97 km/h)
Survival (stowed)
90 mph (145 km/h)
Pointing Loss (operational winds)
Maximum 2.0 dB peak Rx loss (performance dependent on controller capability)
Temperature
Operational
-22° to +122° F (-30° to +50° C)
Survival (stored)
-40° to +158° F (-40° to +70° C)
Relative Humidity (operational and survival)
0% to 100%
Solar Radiation
360 BTU/h/ft2 (1000 Kcal/h/m2)
Shock and vibration tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant to conditions encountered in coastal regions and/
or heavily industrialized areas.
* Consult factory for mounting locations and apparatus.
Electrical
Frequency (GHz)
C-Band 2-Port
Linear Polarized**
Receive Transmit
3.625 5.850 4.200
6.425
38.20
42.00
Antenna Gain at Midband, dBi
Antenna Noise Temperature
5° Elevation
49 K
10° Elevation
38 K
20° Elevation
33 K
40° Elevation
34 K
Pattern Beamwidth (in degrees at midband)
-3 dB Beamwidth
2.12
-15 dB Beamwidth
4.45
Sidelobe Performance
For Angle A from 2° to 30° (typical)
For Angle A beyond
mainbeam to 20°
For Angle A from 30° to 140°
For Angle A from 140° to 180°
Cross Polarization
On Axis
Within 1.0 dB BW
VSWR
Axial Ratio
Port-to-Port Isolation
Rx/Tx (Rx frequency)
Tx/Rx (Tx frequency)
Feed Insertion Loss
Waveguide Interface Flange
Total Power Handling Capability
RF Specification
51 K
50 K
49 K
48 K
1.37
2.88
0 dB
-60 dB
0.15 dB
CPR229G
2.09
4.39
65 K
55 K
51 K
52 K
1.35
2.84
1.12
2.35
63 K
60 K
56 K
55 K
1.03
2.16
0.72
1.51
30.0 dB
28.0 dB
1.30:1
-30 dB
0 dB
0.15 dB
CPR137G
2 kW CW
975-2837
29-25 Log A
Ku-Band 4-Port
Linear Polarized
Receive Transmit
10.950 13.750 12.750
14.500
47.10
48.80
85 K
75 K
69 K
68 K
0.60
1.26
29-25 Log A
(in general)
29-25 Log A
30.0 dB
28.0 dB
1.30:1
C-Band 2-Port
X-Band 2-Port
Ku-Band 2-Port
Circular Polarized** Circular Polarized***
Linear Polarized
Receive Transmit Receive Transmit Receive Transmit
3.625 5.850 7.250 7.900 10.950 13.750 4.200
6.425
7.750
8.400
12.750
14.500
38.06
42.10
43.50
44.20
47.19
49.00
0.71
1.49
Ka-Band 4-Port
Circular Polarized
Receive Transmit
20.200 30.000 21.200
31.000
52.20
55.20
145 K
125 K
111 K
103 K
0.60
1.26
29-25 Log A
(in general)
0.40
0.84
0.29
0.61
29-25 Log A
29-25 Log A
-10 dBi
0 dBi
-10 dBi
0 dBi
-10 dBi
0 dBi
35.0 dB
27.0 dB
1.35:1
35.0 dB
35.0 dB
1.30:1
24.8 dB
24.8 dB
1.30:1
1.00 dB
24.8 dB
24.8 dB
1.30:1
1.00 dB
19.7 dB
19.7 dB
1.30:1
1.81 dB
27.3 dB
27.3 dB
1.30:1
0.75 dB
21.3 dB
21.3 dB
1.30:1
1.50 dB
21.3 dB
21.3 dB
1.30:1
1.50 dB
35.0 dB
27.0 dB
1.35:1
0 dB
-100 dB
0.40 dB
CPR229G
-50 dB
0 dB
0.20 dB
0 dB
-110 dB
0.40 dB
CPR112G
-110 dB
0 dB
0.40 dB
0 dB
-30 dB
0 dB
-50 dB
0 dB
-85 dB
-85 dB
0 dB
-85 dB
0 dB
-85 dB
0 dB
0.30 dB
0.20 dB
0.60 dB
0.45 dB
0.35 dB
0.30 dB
WR-75
WR-75
WR-75 Flat
WR-75 Flat WR-42
WR-28
Flat
Flat
1 kW CW
2 kW CW
100 W CW
975-1575
975-1708
975-1492
CPR-137G
2 kW CW
975-2712
CPR-112G
2 kW CW
975-1701
** C-band CP/LP feed available.
*** Optional low PIM version available. XSTAR compliant, MIL-188-164A compliant options available.
35.0 dB
35.0 dB
1.25:1
-10 dBi
0 dBi