I am in Australia and have just bought
a Jaycar 91 element UHF TV aerial.

It is supposed to cover frequencies from 470 to 862 MHz.
I want to use it for Digital TV reception.

http://www1.jaycar.com.au/productVie...=&SUBCATID=478

The aerial is in kit form
and main beam comes in three sections.

The cryptic instruction sheet does not say which way round
the centre of the three sections should go and there are
no indicating marks either.

Depending on which way you have it the spacing of the
elements in the centre section will change in relation to
elements in the other two sections.

Is this a problem?

Is there a way to check for the correct orientation
other than trying it both ways?

Thanks in advance,
Greg.