Observations about carrier on 1810.8. I'm in North Central AZ, just north
of Prescott. Time - 0730z.
With my HI-Z 4sq, I hear the carrier:
NW - S4 (Pacific NW is about 340 degrees)
NE - S3
SE - S2
SW - S2
Atmospheric noise is about S2
Carrier with my TX vertical is S7 on peaks, with background
A bad S9 plus growling noise suddenly began about a week ago that covered
the entire 80 meter band making it totally unusable. Other bands including
160 meters were ok. Checking with neighbors for new devices didn't turn up
anything. The noise continued for another few days so decided to eliminate
these CFL bulbs can generate some strong RF
noise just before going out.
Mack - had a similar issue here several years ago...s9+ buzz throughout the
longwave band for a month. I live on an island with very few winter
neighbours and eventually traced the source (which was radiating nicely via
Understand what these compact florescent bulbs really are ... a small,
tightly coiled, florescent tube with an *electronic ballast*. The
electronic ballast is nothing more than a small, cheap switching power
supply to generate the high voltage necessary to fire the tube.
When a CFL fails it is
Here in Evansville Indiana I have been receiving a strong carrier day
and night. It's presently at 1.833 mhz and very slowly moving up the
band. It's 13:00 and the noise floor is -105db and the carrier is -78db.
There is a deep null with my Pixel magnetic loop along a 130-310 line.
Has
On 3/25/2014 11:12 AM, W9HAK wrote:
It's presently at 1.833 mhz and very slowly moving up the band.
You've just described a switching power supply. The clue is that it
drifts slowly. There's probably a hump of noise around it, but you may
not notice it because it's random noise modulating
Had originally installed 26 watt CFL's to replace 100 watt filament type.
Many noise problems as time passed.
Have now replaced all with Halogen 72 watt soft white.
Still have some power saving, but no noise from them, so far.
73
Bruce-K1FZ
www.qsl.net/k1fz/beveragenotes.html
When a CFL
Google seems to indicate that they don't ban CFL bulbs in Green Banks WV,
but maybe they should.
73, Barry N1EU
On Wed, Mar 26, 2014 at 6:34 AM, Bruce k...@myfairpoint.net wrote:
Had originally installed 26 watt CFL's to replace 100 watt filament type.
Many noise problems as time passed.
OK, we now have a challenge for any hams interested in finding a stray
carrier on 1810.8 MHz in the Seattle area.
We have narrowed it down we think to an area enclosed by Shoreline Wa,
Woodinville Wa, and Kirkland Wa.
None of us involved so far live close enough to easily assist with
They clain they are very long lasting too but I have not found that to be
the case. Six months to a year is all I get. I don't buy them anymore.
But thanks to Joe for explaining how they work. I did not know.
Hardy N7RT
- Original Message -
From: Joe Subich, W4TV li...@subich.com
To:
FWIW its worth that is a Wal Mart house brand and likely bought at the
lowest possible price after beating up the manufacturer in China to near
zero profit. They will give you exactly what you pay for; just ask the many
who have bought a no name or a made up name Chinese electrolytic when
With the utility rates in the Virgin islands now at .52 per KWh I have
started to use candles for dinner and its nice. Out side on the
house and even on beverage supports, so I can find them at night, I used
the solar powered single self contained unit 3 and 8 white light led
Lee you might check the AM band and see if there is a detectable carrier
on 603.6 or 905 Khz as sometimes unlicensed AM pirate stations try to
slip in between the noram AM 10 KHz increments to avid interference. I
could be one such station's second or third harmonic with the carrier
just left
I just put Rev B of Arrival Direction of FT5ZM in North America on
160m on my web site.
For the record, Rev A corrected an error in the original text.
Rev B addresses two issues: a problem with Figure 1, and more data
received/added to Figure 3.
The Figure 1 problem is interesting. N5IA
Steady S7 here in Redmond, WA at 3:30 PDT on a T loaded vertical.
My receive 4 sq puts it strongly to my NW of 47.68N x 122.01W QTH
No loop to resolve it further.
Grant KZ1W
On 3/25/2014 12:48 PM, Lee K7TJR wrote:
OK, we now have a challenge for any hams interested in finding a stray
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