I want to get AM on my reciever/amp. I have a coax 75 ohm cable comming from
a TV antenna on the roof into the 75 ohm FM input on my reciever. Can I
split that coax line and make a connection to the AM antenna input on my
reciever along with the FM input. If I can, would I split it with one of
those 75/300 ohm splitters and put the 300 ohm end into the AM input?

Oh, the little loop antenna I got with the reciever doesn't work well. It
picks up a loud 60Hz hum from the house wiring. Would aluminum wiring cause
this?

Thanks
John