Hey gents. I'm looking to install a masthead amp to the old folk's TV aerial outside their garden cabin. The current setup is a 10 foot long coaxial cable running from the aerial directly to the tv in the cabin. I want to of course install the amp between the aerial and the Power-supply/TV - however, there's no way of disconnecting the coxial cable from the aerial end, i.e. it seems to be fixed in place (AFAIA). This prevents me from using a short cable from Aerial > Amp, with the longer cable going from the Amp through a hole in the cabin, and into the Power Supply/TV (I have f-connector adapters). I would have to use the existing 10ft cable to connect to the masthead amp, then another equally long cable going into the cabin. Question is - would the unnecessarily long cable connection affect the signal quality in any way? I realise I could cut the existing cable and install the connectors manually, but I'd like to avoid this if possible. The TV engineer fella was quoting 150 quid just for the masthead installation!! Seems a bit steep to me so I'd rather try it myself.