The following information is about QFH.

QFH Defined

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Off-site QFH Links, User Submitted

The following links have been collected through user bookmark submission in the QFH category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.

Sun Apr 26

• qfh.pdf (application/p df Object)

Mon Dec 29

• A QFH antenna for the weather satellite band
• Quadrifilar helicoidal antenna - Pictures first (coax) version
• Building a WXSAT QFH antenna - Flight Refuelling Amateur Radio Society (FRARS) G4RFR G6SFR G0FRR
• QFH Antenna Index Page

Mon Sep 10

• Quadrifilar helicoidal antenna - Javascript on-line calculator: Description of the construction of a quadrifilar helicoidal antenna. This model is for meteorological satellites, but a calculator is provided to adapt measure to other frequencies. Construction is cheap, and materials are easily available.

Wed Apr 4

• APT,HPRT,CHRPT ,receiver,deco der,helical,he lix,QFH,homema de

Sun Jul 2

• Quadrifilar helicoidal antenna - Picture of Vaisala's GPS version

Wed Jun 7

• gilesgoat: You saw the previous entry, now it's fin

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Off-site Qfh Research Links

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