[Elecraft] K3 Low Pass Question

Al Lorona alorona at sbcglobal.net
Wed Jun 16 17:46:00 EDT 2010


Jim,

An argument in favor of leaving the LPF in the line would be to keep strong VHF or UHF signals out of the receiver. Although there aren't as many TV stations in the VHF region any more, there are still plenty of FM broadcast signals that in an extreme case could create intermodulation distortion (or blocking) in your receiver.

For example, here in Los Angeles all of the broadcasting is on one mountaintop, 3 miles north of me, consisting of about 25 MW ERP. I use an LPF for that reason.

But if a situation like that doesn't apply to you, you could probably do without it.

Al W6LX

____________________________________________________________
Just wondering if many K3 owners have a low pass filter in their coax line?

Jim / W6JHB


More information about the Elecraft mailing list