I don't know. It does depend on how the list admin has things setup. I might just post a link to my dropbox or perhaps paste bin. I will let you guys know when I make the recordings.
On Oct 15, 2015, at 1:50 PM, Mike Keithley wrote:
> If you can send attachments on this list, those recordinds would be appreciated.
>
> ----- Original Message -----
> From: Eric Oyen <[log in to unmask]>
> To: [log in to unmask]
> Date: Thursday, October 15, 2015 1:34 pm
> Subject: Re: I Think I Know What Ham Radio in Hell Sounds Like.
>
>>
>>
>> grow lights are not the only noise maker. believe me, I have a plethora =
>> of sources around my neighborhood. Firstly, the 12 Kv overhead power =
>> lines. THose things buzz 24/7 and are particularly loud on 80 and 160. =
>> That is not I can handle that with an MFJ-1025 noise cancellation unit. =
>> Its some of the others that I have difficulty with (like the plasma TV =
>> my neighbor has, or the Tivo unit out in the front room that throws =
>> spurs all over the spectrum from 14 Mhz all the way up into the 2 meter =
>> band. I need to make some recordings of all these types of noises and =
>> see what you all make of them.
>>
>> DE n7zzt Eric
>>
>> On Oct 15, 2015, at 10:38 AM, Martin McCormick wrote:
>>
>>> I benge-read "QST's" and am all caught up including
>>> October.
>>> =20
>>> By the way, there are numerous references in those issues
>>> to the blistering interference caused by non-type-excepted grow
>>> light balists. I think that is what is tearing up radio reception
>>> around here but I am not sure.
>>> =20
>>> I started noticing it a couple of years ago while
>>> listening to Sporadic E television skip from Mexico and thought
>>> it was a switching power supply of mine until I unplugged it and
>>> the BZZZZ continued unchanged.
>>> =20
>>> This trash is pretty solid between the high end of ten
>>> meters and roughly 70 MHZ. It is as if you had a 130-volt power
>>> sub station in your back yard or had welders continuously working
>>> right under the antenna.
>>> =20
>>> It goes and goes for hours then abruptly quits in both
>>> Winter and Summer, day and night. It doesn't seem to follow any
>>> particular pattern except a general one of being more common on
>>> work days. I have heard it on for as few as 4 or 5 minutes but
>>> normally, it is buzzing and crackling 24/7.
>>> =20
>>> The "QST" articles said that some of the dodgy balists
>>> emit 50 DB more noise than they should and a single one can be
>>> heard for over half a mile.
>>> =20
>>> Our house is two blocks South of the university campus
>>> and the veterinary school is the closest large complex. I haven't
>>> gotten a fix on the megabuzz yet but lots of folks around here
>>> grow plants of both the legal and quite illegal variety. That
>>> buzzing sound could be somebody's brain on drugs and they finally
>>> shorted it out. I wish a thunder storm would hurry up and shorten
>>> it's life so one can hear actual radio signals again.
>>> =20
>>> One of the articles I read said that when the light first
>>> comes on, there is a burbling sound as the fluorescent tube
>>> first ionizes. I hadn't heard that, but there is sometimes a
>>> brief burst of racket, maybe a fifth of a second of relative
>>> quiet and then we're off and running for who knows how long.
>>> =20
>>> The article said that some of the grow lights in question
>>> are a kilowatt in power. I guess they could duplicate Marconi's
>>> transatlantic test and this time, the spark is contained in the
>>> glass tube.
>>> =20
>>> Martin
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