The Label Italy FDB/102-N is a 19-inch 3U rack-mountable double coaxial cavity filter rated for 200 watts continuous power, featuring quarter-wave high-Q silvered copper lines, variable bandwidth coupling, and N-type connectors for FM broadcast transmitter spurious emission suppression.
$ 750.01 $ 784.89
The Label Italy FDB/102-N is a professional double coaxial cavity bandpass filter designed for FM broadcast transmission between 87.5 and 108 MHz. Installed between the transmitter and antenna, the filter delivers a clean output signal free from spurious emissions and provides effective isolation from adjacent channel interference. The unit operates at 50-ohm impedance with VSWR better than 1.15:1 and insertion loss below 0.5 dB across the passband.
The Label Italy FDB/102-N employs quarter-wave high-Q resonator topology with variable coupling adjustment, allowing bandwidth tuning between 500 and 800 kHz at the -3 dB points. Internal transmission lines are constructed from silvered copper for minimal resistive losses, with PTFE (Teflon) insulators providing excellent RF stability and low-loss performance. The external housing is fabricated from aluminum treated with Alodyne coating for corrosion resistance and EMI shielding. Front panel controls provide precise frequency tuning and bandwidth adjustment without requiring disassembly.
Rated for 200 watts continuous RF power, the filter is equipped with N-type female connectors on both input and output ports. The 19-inch rack-mount chassis occupies 3U of vertical space and weighs 13 kg, with dimensions of 490 x 800 x 130 mm (W x D x H). Operating temperature range is suitable for climate-controlled transmitter rooms and unheated equipment shelters.
The Label Italy FDB/102-N is ideal for low-power FM broadcast installations requiring regulatory compliance with spurious emission limits. For more RF filtering solutions, browse the Label Italy range and explore related cavity filters for broadcast applications.
