I have purchased a PRO45 antenna.
However, I cannot get good reception.
Does the antenna need to be placed horizontally to obtain a good reception?
TV transmissions are polarised whether they are vertical or horizontal or whether they are in the VHF or UHF frequency bands.
Therefore, if your TV channels are transmitted using horizontal polarisation, you must install the antenna with the reflectors open in a < shape on the horizontal plane.
For vertical polarisation, the reflectors must be open in a < shape on the vertical plane.