Directional 433Mhz antennas?

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1

Hi,

I’m looking for directional antenna for my 3DR radios. Would it be possible to add a few links to the wiki (“Where to buy”)? There are 900Mhz antennas but no 433Mhz and I’m having a hard time finding them online.

The page I’m referring to: http://copter.ardupilot.com/wiki/common-antennatracker-choosing-antenna/

2

Look for 70cm antenna designs, they are quite close in size and using the right sums you ca easily make your own.

3

Sorry but as I’m quite a noob when it comes to antennas, I’m not sure what you mean :confused: . Close in size to… the standard antennas? Sums?