[TowerTalk] RFI Identification

[David Gilbert]

I use just such a hidden dog containment wire here on my property, and 
if I remember correctly the frequency of the low power RF (continuous, 
as N8DE states) is in or near the 27 MHz CB band.  I live in a very 
quiet rural location and I've never noticed any interference from it at 
all on any amateur band.

73,
Dave   AB7E


n8de at thepoint.net wrote:
> Pet containment systems do NOT pulse.  They are simple a low-power  
> transmitter of continuous output which the COLLAR worn by the pet  
> picks up and then switches on a mild shocking to the pet.
> Don
> N8DE
>
> Quoting W4LDE-Ron <w4lde at cfl.rr.com>:
>
>   
>> That brings on a thought, how about a dog electrical hidden yard fence,
>> anyone close buy do that?
>>
>> Ron W4LDE
>>
>> n8de at thepoint.net wrote:
>>     
>>> Tony,
>>> Sounds like an electric fence with a leakage or discharge path.
>>> Any farms in the vicinity?  How about someone with an electric fence
>>> to control predators?
>>> We have one here and it make the exact sound you describe when one of
>>> the insulators on a fence post leaks.
>>> Good hunting.
>>> Don
>>> N8DE
>>>
>>> Quoting Tony <dxdx at optonline.net>:
>>>
>>>
>>>       
>>>> All,
>>>>
>>>> I have an RFI problem that I'm trying to identify. It's a continuous
>>>> pulse noise that pops on every 1/2 second. The actual timing between
>>>> each pulse is about 0.533 seconds and doesn't seem to change.
>>>>
>>>> It's spread accross all HF bands and on some days, it creeps up into the
>>>> 100MHz range. It's stronger on the lower bands (80 meters) than on the
>>>> upper HF frequencies.
>>>>
>>>> The signal is directional and can be nulled completely when not beaming
>>>> in the direction of the source. The interference came on suddenly in
>>>> December.
>>>>
>>>> I have a few recordings and would appreciate any suggestions. Apologies
>>>> for the off-topic subject -- please reply direct.
>>>>
>>>> Tony -K2MO
>>>>
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>>>>         
>>>
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