[Antennas] Elementary Antenna Question

[Andy]

> Also, it isn't so much of a problem on 20m, but the MFJ-259 has a
> wideband detector, so strong signals from local AMBC or other
> transmitters can make for some pretty strange readings, although this
> doesn't appear to the issue here.  But on 160m and 80m, it is often a
> real pain.

I'm not sure, but I thought the problem happened on all bands, because it
has a wideband detector.  That is, it's still receiving local AM broadcast
signals even though the MFJ-259's local oscillator is oscillating on a 20m
frequency.

If the 259's frequency control also changes some sort of bandpass or
highpass circuit (which I thought the '259 didn't have) in addition to the
oscillator, then this problem would go away when you use it on higher freq.
bands.

Andy