I’ve watched a pile of videos from Lester, I know you guys have too. I notice that in a lot of his videos he mentions changing a filter, the I.F. filter. I don’t know a lot about this so I’m hoping one of you can enlighten me and educate me on it. Why does he do that? Is it only for transmit or only for receive? Not really knowing what to look for or how to search for an answer, I come up with a 10.75 ceramic filter being listed for FM. Why would anybody care about FM on an export chassis radio in the states? So why does he do that, besides money, what’s the reason he’d tell you that it needed to be changed? I assume it’s for rejection of bleedover from other channels, is that why?