Thread: noise antenna?
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Old July 8th 07, 01:14 PM posted to rec.radio.amateur.antenna
Dave Dave is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 797
Default noise antenna?

the simplest thing is just a loop. maybe a foot or so in diameter, a couple
turns is enough... just enough so that you can hear it and get a null off
the side that you can hear or see on the meter.

"ml" wrote in message
...
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