Thanks Dave. Its a spotting scope. Like the ones you look downrange at
the target to see where you hit and not the scope mounted on a rifle.
This is the one I have;
https://www.amazon.com/dp/B0728C4K7W?psc=1&ref=ppx_yo2_dt_b_product_details
Wish i had not sold my high dollar leupold rifle scope I had years ago.
It could almost see in the dark. I could see almost nothing in fields in
the dark but looking through that scope could easily see.
Chuck
W4NBO
On 5/8/21 11:48 AM, David Eckhardt wrote:
Instead of the 'rifle' scope, I'd suggest something a bit more capable
with a larger aperture. I have the Celestron Ultima 65 used for this
purpose and many others. The 65 mm objective is excellent, it can be
either hand-held or tripod mounted, and costs a bit less than twice
your 'rifle' scope (in the $100 to $150 range, store dependent).
Dave - WØLEV
On Sat, May 8, 2021 at 3:13 PM Charles Plunk <af4o@twc.com
<mailto:af4o@twc.com>> wrote:
As you may remember, I sighted my first strong arc with binoculars
after
triangulation, ultrasonic, etc. Its been fixed by the util for over a
month and still gone gone :-)
A not near as strong arc is on the same pole but on the opposite
side.
This pole is in the corner of my backyard so makes it convenient to
experiment with. Playing with the success of the first, I tried
binoculars and thought, with some imagination that I could see
this arc
too. Its tiny.
So, I bought a stronger spotting scope, like you sight in rifles
with.
And mounted it on a tripod. Last night the source was active and
still
think I see it in the same spot. A crusty old ground lug wired to the
bottom of a fused disconnect. Connects to the wire stapled to the
pole.
One has to be careful as reflections off the ceramics from distant
street lights (~200' away) can look like arc's. But a crusty
ground lug
should not reflect. This area is also where I hear it with
ultrasonic.
Its a very narrow place to stand on the ground to hear it with
ultrasonic. Another issue is its so dark its hard to make out the
outlines of the pole in the dark to tell where you are seeing. But I
could see enough. The bigger the lens on the front of the
scope/binoculars the better to capture more light to see the pole
I suppose.
My experiments so far with digital cameras, one with the IR/UV
filters
removed, have resulted in failure. Cannot even see the pole in the
dark.
Nothing but a grainy picture. Even trying to capture a picture
through
the scope. The scope came with a phone mount for capture.
I am going to look at the same spot when the source is inactive.
If the
suspected tiny arc is absent then going to request the util
replace that
connector unless anyone has any further suggestions.
The spotting scope I bought was ~$60 so another low cost tool
maybe for
your rfi toolbox.
Underneath this one, at night I am hearing a repetitive noise. One
minute on ~0.5 - 4 seconds off. But thats another story, lol and does
not sound like power line arc.
Chuck
W4NBO
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*Dave - WØLEV*
/*Just Let Darwin Work*/
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