LINKTUBE FBP FM DOUBLE CAVITY 800/2000/5000
The Linktube cavities of the FBP series are double cavities in high “Q” quarter wave designed to reduce intermodulation among various frequencies and to eliminate spurious emissions from the transmitting unit. They are installed between the final amplifier and antenna and tuned at the factory on the working frequency. They are also suited for coupling in order to obtain diplexers for various power levels.
TECHNICAL SPECIFICATIONS
Frequency range 87.5 – 108 MHz
Bandwidth (-3dB) 800 KHz typical
Impedance 50 Ohms
Connectors FBP800: N type FBP2000: 7/8 or DIN 7/16 FBP5000: 7/8
Power rating FBP800: 800 W FBP2000: 2000 W FBP5000: 5000 W
VSWR 1.1:1 typical
Insertion loss FBP800: 0.6 dB FBP2000: 0.4 dB FBP5000: 0.4 dB
Materials external parts: aluminum internal parts: silver plated copper
Color black
Weight FBP800: 23 Lbs (10.5 kg) FBP 2000: 34 Lbs (15.5 kg) FBP 5000: 77 Lbs (35 kg)
Temperature range 20° to 120°F (-8° to 50°C)
Dimensions FBP800 44″×8″×8″ (1100×200×200 mm)
FBP2000 52″×8″×16″ (1300×200×400 mm )
FBP5000 52″×12″×24″ (1300×300×600 mm )
Packing FBP800 52″×9″×9″ (1300×225×225 mm)
FBP2000 58″×9″×24″ (1450×225×600 mm)
FBP5000 58″×13″×32″ (1450×325×800 mm)
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The cavities of the TFBP series are triple cavities in high “Q” quarter wave designed to reduce intermodulation among various frequencies and to eliminate spurious emissions from the transmitting unit. They are installed between the final amplifier and antenna and tuned at the factory on the working frequency. They are also suited for coupling in order to obtain diplexers for various power levels.
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Linktube FM triple coaxial cavity in quarter wave high “Q” with variable coupling. Installed between transmitter and antenna, provides an output signal free from spurious and a perfect isolation from other emissions. Made of aluminum with internal lines of silvered copper and PTFE insulators. These cavity filters have a B.W. command that allow you to adjust selectivity.
The TRIPLE version guarantees a superb selectivity , ideal for systems with very close frequencies between them.
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These combiners for two or three transmitters were conceived to couple two or three transmitting frequencies on one antenna. Besides the power restriction due to the type of cavity that is used, the diplexers and triplexers are also limited by the frequency range. The distance between the various frequencies must be greater than 3 MHz. The triplexers must be factory tuned.
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