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International Radio :: Filters :: Front-End Filters

Front-end filters may be used in RF environments where thre are many strong interfering signals, such as locations near high power broadcasting transmitters or multi-transmitter contest stations.

These filters have 50 ohm input and output inpedances, and are designed to go in front of a receiver. They can be transmittted through at very low levels. Incident power levels must be held below 0 dBm to prevent crystal damage.

Front-End Filters
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#807
5 kHz 1822.5 kHz 4-pole...
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#808
10 kHz 3505.0 kHz 4-pole...
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#801
15 kHz 7007.5 kHz 8-pole...
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#802
20 kHz 14010.0 kHz 8-pole...
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#809
20 kHz 7065.0 kHz 8-pole...
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#810
20 kHz 7045.0 kHz 8-pole...
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#804
20 kHz 14080.0 kHz 8-pole...
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#805
20 kHz 21010.0 kHz 8-pole...
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#803
50 kHz 28025.0 kHz 8-pole...
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