[time-nuts] Anyone have experience with this antenna?

Bob kb8tq kb8tq at n1k.org
Tue Feb 6 13:33:54 EST 2018


The microwave trick is fine for working out if it is a lossy material. Unfortunately 
what gets you in this case is more than just loss. A coax cable has core material 
that will (usually) do quite well in a microwave. None the less, the delay through 
the coax is different than through air ( = the coax has a velocity factor). 


> On Feb 6, 2018, at 12:25 PM, Bo Hansen <timenuts at rudius.net> wrote:
> Hi
> Indeed a radome may distort the antenna pattern. In teh case of DIY projects the trick that most can apply is to take a piece of the radome material and put it into a microwave own.  If it doesn't get hot it is OK for most DIY cases.
> Infinion have some nice GNSS MMICs e.g. BGA924N6 http://demo.21dianyuan.com/infineon/download/download_down/id/40/type/cn <http://demo.21dianyuan.com/infineon/download/download_down/id/40/type/cn>
> Bo

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