LINKTUBE DIPLEXERS FSD 800 & 2000
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.
TECHNICAL SPECIFICATIONS
Frequency range 87.5 – 108 MHz
Typical insertion loss 0.7 dB (FSD 800) 0.5 dB (FSD2000)
Min. freq. spacing 3 MHz
Impedance 50 Ohms
Connectors FSD 800 input N type / output 7/8 EIA
FSD 2000 input 7/8 EIA / output 1+5/8
Power rating FSD 800: 800 W each channel max
FSD 2000 W each channel max.
VSWR 1.1:1 typical
Isolation btwn channels 25 – 50 dB (dep. on dist. btwn channels)
Materials ext.: aluminum – int.: silver plated copper
Color black
Weight 44 Lbs (20 kg) FSD 800
62 Lbs (28 kg) FSD 2000
Temperature range 20° to 120° F (-8° to 50° C)
Dimensions FSD800: 44”×8”×16” (1100×200×400 mm)
FSD2000: 56”×26”×18” (1400×650×450 mm)
Packing FSD800: 52”×9”×17” (1300×225×425 mm)
FSD2000: 58”×28”×20” (1450×700×500 mm)
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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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TRIPLE CELL TFBP 3000 FM CAVITY FILTER
Triple Cell FM Bandpass Cavities
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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FILTERS AND COMBINERS
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.
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