Coaxial cable for TV to bollard

Aspenshaw

Having installed an Avtex TV and Status aerial, I understand that on some CC sites, I will need a "25 metre length of 7mm-diameter 75ohm television coaxial cable with a standard male coaxial plug at each end" [to quote the Carvan Clude technical guidance].

Prices for these seem to vary from £8 to £33 with stated differences in the quality of the cable. I know some sites sell the cables for c£14.

Please recommend a good quality cable and supplier.