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VertexRSI 4.8M Compact Cassegrain Antenna
- Bolt-together configuration
- Galvanized steel pedestal
- 3.4 to 31 GHz operation
- Survives 125 MPH winds in any position
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4.8M Compact Cassegrain Antenna
The VertexRSI 4.8-meter Cassegrain Antennadelivers exceptional performance for transmit/receive and receive only applications for C through Ka-Band frequencies.
This antenna offers a deep dish
reflector that incorporates precision-formed panels, contoured
radials and a machined hub assembly. It features an innovative
feed and subreflector design which results in high gain, low noise
temperature, high antenna efficiency and excellent rejection of
noise and microwave interference. The reflector is supported
by a galvanized pedestal that provides the required stiffness for
pointing and tracking accuracy. The pedestals are designed for full
orbital arc coverage and are readily adaptable to ground or rooftop
installations. The electrical performance is compliant with FCC
25.209 regulations and ITU-RS-580 sidelobe specifications. Type
approved configurations are available for Intelsat (F1, E2), Eutelsat
(L), Asiasat, Hispasat, EuropeStar or Singapore Telecom. All
configurations meet SATCOM Technologies' own type-approved
quality assurance and performance guarantee.
4.8m Cassegrain Antenna Features
- 'Type-Approved' bolt-together configuration
- Self-aligning aluminum reflector - no field alignment
- Fully interchangeable reflector components
- Meets FCC 25.209 regulation at Ku-Band
- Designed for 3.4 to 31 GHz operation
- Standard two and four port Tx/Rx and Rx only feeds
- Feed systems are factory assembled and tested
- Jack screws or struts in azimuth and elevation
- Galvanized steel elevation over azimuth pedestal
- Survives 125 mph winds in any position
- Lightning arrest rods included
- Foundation hardware kit included
Options
- C, X, Ku, DBS and Ka-Band feed configurations
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- C/Ku receive only feed systems
- Specialized feed systems (e.g., extended, multi-band)
- Fixed or motorizable pedestal mounts
- Antenna control system with tracking
- Reflector and feed deicing systems
- Environmental hub configurations
- Integrated transmit cross axis kits
- Integrated LNA or LNB systems
- HPAs, converters and M&C systems
- Load frame or non-penetrating mounts
- Packing for sea and air transport
- Turnkey installation and testing
Upgrades
- X-Band low PIM reflector/feed configurations
- Extended azimuth travel
- High wind configuration
- Low operating temperatures
- High power confi gurations
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| MECHANICAL |
| Azimuth Travel |
120° Continuous Travel |
| Azimuth Travel Rate |
1°/sec. C/Ku-Band |
| Elevation Travel |
0°-90° |
| Elevation Travel Rate |
0.9°/sec. C/Ku-Band |
| Polarization Travel |
±95°(for 2-port feed)
±50°(for 4-port feed) |
| Polarization Travel Rate |
1.5°/second |
| Reflector |
Aluminum |
| Pedestal |
Steel |
Finishes:
Reflector Surface
Pedestal |
Aluminum Panels with heat-diffusing white paint
Hot-dip galvanized |
Weight:
Reflector
Pedestal
Shipping |
750 lbs. (340kgs)
800 lbs.(363kgs)
2,800 lbs.(1270kgs) |
| Shipping Volume |
445 cubic feet (12.6m3) |
| Surface Accuracy |
0.020 inch (.5mm)Static |
| Foundation Size |
12.5ft x 12.5ft x 1.25ft (3.81 m x 3.81m x .38m) |
| Concrete Volume |
7.25 cubic yards (5.5m3) |
| Reinforcing Steel |
500 pounds(227kg) |
| Soil Bearing Pressure |
2,000 PSF (10,000 kg/m2) |
ENVIRONMENTAL |
| Operational Winds |
45 mph (72 km/h) Gusts to 60 mph(97 km/h) |
| Survival Winds |
Any Position - 125 mpg(200 km/h) @58°F(15° C) |
| Ambient Temperature |
Operational: +5° to 122° F (-15° to +50° C)
Survival: -22° to 140° F(-30° to +60° C) |
| Rain(operational and Survival) |
Up to 4 in/h (10cm/h) |
| Relative Humidity |
0% to 100% with Condensation |
| Solar Radiation |
360 BTU/h/ft2(1000 Kcal/h/m2 |
| Radial Ice (Survival) |
1 inch (2.5 cm) on all surfaces, 1/2 inch (1.3 cm) on all surfaces with 80 mph (130 km/h) wind gusts |
| Shock and Vibration |
As encountered during shipment by commercial air, sea or truck |
| Seismic(Survival) |
Mercalli X/0.3 G's horizontal, 0.1 G's vertical |
ELECTRICAL - C-BAND 2-PORT CIRCULAR POLARIZED |
Frequency:
Receive
Transmit |
3.625-4.200
5.850-6.425 |
Antenna Gain at Midband, dBi
Receive
Transmit |
44.0
48.1 |
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Eleavation |
60°K
57°K
47°K
43°K |
Typical G/T at midband
C-Band 35°K LNA |
25.2 dB/K |
Pattern Beamwidth
-3dB receive
-3dB transmit
-15dB receive
-15dB transmit |
1.14°
0.68°
2.39°
1.43° |
| Sidelobe Performance |
Meets ITU-RS-580 Specifications |
Cross POL Isolation (within 1 dB)
Receive
Transmit |
19.7 dB
27.3dB |
VSWR (max)
Receive
Transmit |
1.55:1
1.30:1 |
Axial Ratio:
Receive
Transmit |
1.81 dB
0.75 dB |
| Port to Port Isolation |
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RX/TX (Rx Freq)
Receive
Transmit |
0 dB
-60 dB |
Tx/Rx (Tx Freq)
Receive
Transmit |
-100 dB
0 dB |
Feed Insertion Loss
Receive
Transmit |
0.40 dB
0.25 dB |
Waveguide Interface Flange
Receive
Transmit |
CPR-229G
CPR-137G |
| Total Power Handling Capability |
2 KW |
| RF Specification |
975-2635B |
| Type Approval |
INTELSAT |
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