Such is the Black Art nature of RF all aerial test readings are approximate, in fact
as far as I know no lab will guarantee accuracy better than +/-
It must be admitted that these particular results are less accurate than that (unlike our TV aerial tests) but they still give a pretty reliable indication of the relative performance of the various antennas.
The “variable” figures result from the directional nature of the particular aerial.
This doesn`t apply to the TV aerials, they`re variable because they`re not even designed
to pick up VHF frequencies ! Note that if the 3 element aerials were pointing directly
away from the transmitter you`d probably lose more than the -
Aerial tests : full results
The subjects on this page are listed in the following order :
We are more than willing to give advice to those actually purchasing from us. Could those only seeking information please just find the answer somewhere on this site, or ring an aerial installer local to them, or call the reception advice phone numbers.
If you`ve found this site informative and, hopefully, interesting as well,
The original transmitter channel allocations (analogue plus digital) meant that more or less the full range of frequencies were available for these tests.