- Aluminium painted
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Designed for external Public Safety Radio Frequencies to propagate within buildings, tunnels or public use environments -
F-3990 This VHF antenna is designed for applications that require peak performance in the 136-174 MHz while tolerating a VSWR around 2.0:1. This antenna has a loading coil between the radiating element and the base. This coil increases the electrical length and makes the antenna perform electrically as a 1/4 wave antenna, but shorter than a regular 1/4 wave antenna. Typical gain, when mounted on a ground plane, is comparable to a full 1/4 wave. Mounts on NMO. The upper element is made from a brass wound cable with a flexible shaft core, well sealed using rubber shrink material. This solution offers a high reliability and prevents breakage or brittleness. Other frequencies are available upon request. DOWNLOAD PDF
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Designed for flexible, space saving filter systems
- 4 types of racks:
- 19 inch standard racks
- X–racks
- Stack racks
- Wall-mount and cabinets
- 5 types of mounting hardware:
- Cabinet mount (CM)
- Wall mount (WM)
- Rack mount (RM)
- Tower mount (TM)
- Tray mount (TRM)
- Mounting hardware manufactured to your specifications available
- 4 types of racks:
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Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
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Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
-
Designed for compact, close frequency installations. Ideal for very closely spaced frequency transmitters
- Ideal for intermodulation panels, providing extra protection with their second harmonic filters, when physical space is at a premium or is constrained, and for providing extra isolation between two very close transmitters
- High isolation: minimizes intermodulation products
- Low loss: maximizes system performance
- Continuous power:
- Physical size and materials used maximizes the performance across the operating band
