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<blockquote data-quote="Vipersan" data-source="post: 848626" data-attributes="member: 325666">..Anyone ever attempted a quadrifilar helix ?I thought I might make an attempt at receiving the NOAA polar orbiting weather sats ..For this I need a suitable antenna ..Commercially available but at serious prices so located some plans on t'interweb ..If successful the build should come in around £20.The tricky bit is getting the helix curves right..Also had to make a plug in liquid plastic to anchor the tops of the helix elements...and provide a suitable point to connect the cabling through an infinate Bulun ..(yet to make this.)The project so far looks like this.I'm going to be using a DVBT dongle as a software defined Radio.. Already aquired and tested this works ..but hope to one day use a funcube dongle ..though these are a bit pricey.We shall see..Another day ..another experiment..But the fun is in the trying.rgdsVS</blockquote>

[QUOTE="Vipersan, post: 848626, member: 325666"] ..Anyone ever attempted a quadrifilar helix ? I thought I might make an attempt at receiving the NOAA polar orbiting weather sats .. For this I need a suitable antenna .. Commercially available but at serious prices so located some plans on t'interweb .. If successful the build should come in around £20. The tricky bit is getting the helix curves right.. Also had to make a plug in liquid plastic to anchor the tops of the helix elements...and provide a suitable point to connect the cabling through an infinate Bulun ..(yet to make this.) The project so far looks like this. I'm going to be using a DVBT dongle as a software defined Radio.. Already aquired and tested this works ..but hope to one day use a funcube dongle ..though these are a bit pricey. We shall see.. Another day ..another experiment.. But the fun is in the trying. rgds VS [/QUOTE]

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