[RFI] Identify this pole hardware

[David - M0ZLB]

> It doesn't seem surprising that noise emanates from this! Who 
> installed this, a three year old? What a mess :)
>
> David
> M0ZLB/KG4ZLB
>
> Kelly Johnson wrote:
>> Can anyone tell me what these little black boxes attached to powerline
>> poles around my house are?  I suspect that one of them is a source of
>> RFI.
>>
>> Here's a link to pictures of the black boxes.  They are about the size
>> of a shoebox with a cone on each end and wires running into the cones
>> on each end.  The boxes are mounted on the wires close to the power
>> pole.
>>
>> http://www.kellyandshari.com/gallery/album18
>>
>> I reported a noisy pole to PG&E 1 month ago.  The noise is only there
>> when outdoor temps go above about 80 or 85 degrees.  A PG&E consultant
>> came out and heard the noise, but it went away before he could DF the
>> pole.  I told him what pole it was based on my DFing.  Last weekend,
>> something on that very pole blew up.  It looks like one of these black
>> boxes.  I'm hoping this solves my RFI problem :-)  I won't know until
>> temps get hot again.  In the meantime, I'm just curious what these
>> black boxes are for.  The power went off for a second when we heard
>> the big "bang" from that pole, but went right back on.  Nothing else
>> is out.  None of the neighbors have reported a problem.  I'm wondering
>> if these are cable boxes.  Anyone know?
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>>
>>
>>   
>