" Tuuk" wrote in message
...
Sorry for the delay, work kicked me for a while.

I finally got back to checking and the noise is louder and when unhooking
the tuner (which is attached to the dipole) the noice immediately goes
away. Yesterday was about S9 or S10 of constant noice coming over all the
bands on the HF.

Is there any good Intermod filter for older style solid state rigs? There
must be a cell phone tower or plazma tvs all over my neighborhood. Only
way if that is the case to eliminate this is a intermodulation filter of
some type on my end.

Any good comments I am appreciative, cheap comments welcome as well.

Some things:

CHARACTERIZATION: See if the noise is truly on all the bands. Check every
band for which you have a suitable antenna. Tell us what bands are bad and
how bad. Is the problem the same at 2:00 AM as at 8:00 PM? Do you have
access to a spectrum analyzer?

LOCALIZATION: Get yourself a lot of coaxial cable, perhaps 100 feet and
relocate a portable antenna to places around outside your shack while
another ham calls out the S-meter reading every time you stop someplace and
ask for it. You don't have to have a particularly good match so I'd suggest
you DON'T need ground radials -- just a hamstick on the end of the cable.
Don't hold onto it while your buddy takes the reading; hold it upright with
a plastic or wooden stick a few feet long. Consider buying or borrowing a
portable radio that covers the frequencies affected.

ISOLATION: If you can localize the source, begin powering down. You may be
able to switch off breakers, pending other persons in the house having their
TV go off, or the kitchen go dark at dinnertime, etc. Run your rig off a
battery so you can power down your entire shack. The source could be in a
neighbor's house.

WILD GUESS: Does the tuner have any active circuitry in it? It would be a
real b*tch if the noise were being generated inside the tuner. When you
mentioned "unhooking the tuner," you didn't say which side you were
unhooking.

SNEAK FACTOR (1): A battery-backed-up device, like a smoke detector, CO
detector or burglar alarm could be the problem, but I doubt it.

SNEAK FACTOR (2): If you have more than one problem, you may not know
about Number 2 until after you fix Number 1.

Good luck. I worked interference problems for the Navy and sometimes you
need luck to back up your skill.

"Sal"
(KD6VKW)