Hey guys, sorry for asking such a basic question but I've searched everywhere and can't find an answer...

I managed to get a free byond replacement for my Astro Max and the technician said that the byond requires double aerial cable or something and he gave me the option of drilling for the secondary cable or buying a signal compressor for RM300. The cabling for my astro was done 13 years ago and is really really long so I'll have to go for the converter option and I just want to know whether is he trying to screw me over because RM300 sounds suspiciously overpriced... Is there anywhere I can get that device and how much will it cause near Subang? Many many thanks in advance!! Keep up the awesome work guys!1