[toravir]

I already have an external antenna installed (by prev. owner) - now am using it to receive over the air signals - i see that KTVU and few other signals are not received during the day time - at nights it is ok. This antenna is an old school antenna mounted on a single story house - all around in the neighborhood, it is all single story houses.

Also i don't receive KRON 4.

I live in 95121 zip code. Do i need an amplifier ?

+ravi