hi

about 6months ago my normally low noise level has been plagued with
some noise

it's on and off about 30sec to 1 min on and maybe 1min off but then
it seems to take a break and might go quite for say 5 min

seems to be on all the bands 160-10 and almost as strong equally

it sounds just like the noise level(norm background static sorta)
but comes in s7 solid so all but the most strongest stations get
wipped out


i turned off all the power in my apt via the main breaker and powered
up the rig w/my battery so w/only the rig w/power i still got it same

noise definately comes in stronger w/my roof dipole than say a small
vertical whip in the apt (i am on 4th fl of 13)

i barly hear the noise w/my indoor whip however i also barley hear any
singnals inside given all the concreate and steel mesh

so the question:

Obviously i need to hunt around for the noise whats the best way to
track this down unf i don't have a spectrum analyzer

i do have a ft817 but what is the best antenna but make for this? i
can't walk around the block w/anything to big

but am willing to get anything i need as long as it's not too$$

any tips appreciated because i can't realy use the lowbands anymore
really annoying


thanks





as an aside i discovered my friends zyzel modem puts out a tremendious
ammount of rf