Recent content by PaulGulliver

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    Very small Collinear antenna (~ 300 mm) ??

    Well, I'm afraid I didn't have much luck with the full wave, I took quite a bit of care in the construction, getting the dimensions as close as I could but the results were disappointing - coverage below (compare to my 1/4 GP four posts above) I have no way of testing the aerial, I had to...
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    Very small Collinear antenna (~ 300 mm) ??

    Thanks for the reply Richard, I'll have to study your post on the 1/4 GP later, I happen to be using 50 ohm cable - to me, as an ex- radio amateur, this seemed standard :), I also has a supply of bnc plugs to suit the cable. Since writing my post this morning I've come across this design...
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    Very small Collinear antenna (~ 300 mm) ??

    Richard, in your various antenna trials have you tried the 1/4 ave ground plane as described here http://www.atouk.com/wordpress/?wpdmact=process&did=Ni5ob3RsaW5r (pdf document), if so I would be interested how it compares to other antenna you have tried. I'm using a rather roughly made version...
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    ADS-B DIY Antenna

    Ok Rich, thanks for the advice, I'll look on Ebay and see what I can find Paul
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    ADS-B DIY Antenna

    Thanks for the reply Richard, I wasn't sure if they would work down to 12v - I'm not sure how well stabilised these cheap power supplies are so a 12v unit with a low load may well be nearer 14v in any case. Thanks for the warning about the dc feed through, I hadn't noticed that - could easily...
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    ADS-B DIY Antenna

    The inline amplifiers such as the one here http://www.ebay.co.uk/itm/IN-LINE-SIGNAL-AMPLIFIER-SKY-SATELLITE-BOOSTER-2-F-PLUG-/261150393876?pt=UK_Sound_Vision_Other&hash=item3ccdc6c614 does anyone know what sort of power they require (amps) and any recommendations for suitable power supplies (in...
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