Band-pass electronic filter PF-V series, PF-U series, passive output, input.

Pass Filters with 5” & 8” Cavities Horwin PRF-V/Ux-x series is a “band pass” filters based on a quarter length 5 or 8 inches width square cavities. The use of large cavities provides a high input power rating and means high Q, resulting in a very narrow pass band. Filters allow to handle up to 200 watts power. There are one, two, or three cavities filters available. More cavities provide greater selectivity and, when required, a wider pass-band. Filter nominal impedance is 50 Ohms. N-type “female” connectors are used for input/output connections. Cavities are aluminium made with 5 mm thick top plate welded to the cavity body. Inner conductor and coupling loops are silver plated cooper made. Central tuning road is invar made. All this provide excellent frequency stability in temperature range from – 30 to + 60 C°. Filters are tuned for customer specified frequencies and no future adjustments should be required. If frequencies changes became necessary cavity pass frequency may be adjusted by tuned road and pass width by adjustable coupling loops. PF pass filter x frequency range (V=VHF, U=UHF) x cavities numbers x cavity width (inches