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Monopulse Secondary Surveillance Radar Antenna |
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Benefits | Specifications | Download a pdf of this product (100k) 
 Interscan International, a subsidiary of Interscan Navigation Systems, has extensive experience with planar and phased array technologies in the design, development and production of antennas for Microwave Landing Systems, TACAN systems and various civil and military radar applications. Building on this experience, Interscan designed the MSSR-600G to perform as a standard monopulse secondary surveillance radar antenna offering signal patterns equal or better than other antennas of the same generic type. The MSSR-600G is future-ready by being Mode-S capable and fully compliant with future ICAO requirements under the FANS system.
Interscan has delivered in excess of 100 MSSR antennas to various prime contractors for installation world wide.
Benefits of the MSSR-600G include:
Adaptable for a range of interface requirements
- Interscan's mechanical design facility has traditionally shown its capability to provide cost effective solutions to enable compatibility with a wide range of primary antennas and turning gear.
Designed with future ATC radar beacon system features
- The MSSR-600G is designed to work with the planned implementation of future technology. Technical performance of the antenna supports increased data to air traffic (Mode-S capable).
Reduced Clutter
- Close pattern control of the antenna beams ensures minimal ground reflections and narrow beam widths. Inbuilt band pass filters improve electromagnetic compatibility in typically noisy airport environments.
Reliable and robust
- Monocoque construction ensures maximum rigidity across the array. Passive Radio Frequency networks are housed within weatherproof enclosures. High quality paint finishes ensure resilience to the harshest environments.
Complete product support
Drawing upon its project experience with some of the world's leading radar houses, Interscan can provide full support for your system integration activities through complete product support and technical expertise.
Specification Summary
| Principal Physical Characteristics |
| Number of Radiating Columns |
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35 |
| Spacing of Columns |
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240 mm |
| Number of Dipoles in Radiating Column |
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11 |
| Spacing of Dipoles in Radiating Column |
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150 mm |
| Overall Length of Array |
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8400 mm approx. |
| Overall Height of Array |
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1750 mm approx. |
| Overall Depth of Array (including Back-Fill Radiator) |
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1450 mm approx. |
| Height of Radiating Aperture |
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1650 mm |
| Length of End Sections of Array |
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2400 mm |
| Length of Centre Section of Array |
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3600 mm |
| Overall Mass* |
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< 360 kg |
| * Mass may vary with different mounting requirement. |
| MSSR-600g Electrical Characteristics |
| Type |
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Large Vertical Aperture
Monopulse SSR
Open Array Antenna |
| Frequency |
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| ∑ Channel (Sum) |
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1030 ±3.5 MHz and
1090 ±5 MHz |
| Δ Channel (Difference) |
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1090 ±5 MHz |
| Ω Channel (SLS) |
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1030 ±3.5 MHz and
1090 ±5 MHz |
| Impedance (∑ Δ Ω Channels) |
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50Ω (nominal) |
| VSWR (∑ Δ Ω Channels) |
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1.5:1 (Referenced to 50Ω) |
| Filters |
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Integral Bandpass
Filters on each channel |
| Power Handling Capacity |
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| ∑ Channel |
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10 kW Peak, 200 W Average |
| Δ Channel and Ω Channel |
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10 kW Peak, 100 W Average | |
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| Type |
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Large Vertical Aperture
Monopulse SSR
Open Array Antenna |
Polarisation
(All Channels) |
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Vertical |
| Cross Polarisation |
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| ∑ Channel and Δ Channel |
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< -30 dB Relative to Peak,
< -25 dB Relative to Local
Peak for -2° < ; < 40° |
| Ω Channel |
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< -20 dB Relative to Local Peak for 0° < ; < 40°
(where ; = elevation angle) |
| Net Antenna Gain |
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| Sum Beam with Filters |
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≥27 dBi |
| Difference Beam with Filters |
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Within 2.0 dB of the Sum Pattern Peak | |
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