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Topic:
Any temporary, portable, 12VDC point to point systems out there?
This thread has 12 replies. Displaying all posts.
Post 1 made on Sunday April 14, 2019 at 11:36
Mario
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I'm looking to set up a temporary point to point system at a long distance range.
Ideally, there would be 2 cameras; one pointed right at the target, the second one set back few (several) yards back to catch a wider angle (flyers, wind corrections, etc.).
On the receiving end, there would need to be another 12VDC system with a router, maybe even an NVR and obviously a display or 2 (PC or tablets).

Working distance would be up to 2 miles initially, stretching to 5 Km in the future.
Post 2 made on Sunday April 14, 2019 at 20:58
Ernie Gilman
Yes, That Ernie!
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I think it might help if you'd describe what this system is intended to do. Is this for archery? That's totally a wild guess... because you drop very few hints as to what it's for.

Flyers? People will be dropping small single-page advertisements?
Two miles? Later five? Maybe these are not arrows but RPGs.

Do tell!

Why is a router required at the receiving end? Is that to be able to use an NVR? If so, why would you require a router and MAYBE an NVR?

PUZZLED.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 3 made on Sunday April 14, 2019 at 22:37
3PedalMINI
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Just do a nanobeam or airfiber? A 12v car battery will run the receiver/camera all day long....
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
Post 4 made on Monday April 15, 2019 at 02:39
Ernie Gilman
Yes, That Ernie!
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If you're going to consider fiber you should really look into cotton twill. It can be run over a long distance and is reasonably dimensionally stable, maintaining its sharply defined bandwidth over a wide range of distance. It must be maintained at constant tension, of course, and if you want it to be longer, you can't actually stretch it at all. It won't stretch, and if it would, you'd have standing waves.

The one drawback of this cotton fiber is its susceptibility to crosstalk, literally air movement across the device causing a modification of the desired signal. Crosstalk in the original sense.

The transmitting and receiving cans utilize standard industrial sizes.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 5 made on Monday April 15, 2019 at 04:50
Nick-ISI
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On April 15, 2019 at 02:39, Ernie Gilman said...
If you're going to consider fiber you should really look into cotton twill. It can be run over a long distance and is reasonably dimensionally stable, maintaining its sharply defined bandwidth over a wide range of distance. It must be maintained at constant tension, of course, and if you want it to be longer, you can't actually stretch it at all. It won't stretch, and if it would, you'd have standing waves.

The one drawback of this cotton fiber is its susceptibility to crosstalk, literally air movement across the device causing a modification of the desired signal. Crosstalk in the original sense.

The transmitting and receiving cans utilize standard industrial sizes.

OMG.....Ernie.....!

Is that........


.....humour?

I'm starting toi think you may even be human!!

;-)
What do you mean you wanted it on the other wall - couldn't you have mentioned this when we prewired?
Post 6 made on Monday April 15, 2019 at 09:10
highfigh
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On April 14, 2019 at 11:36, Mario said...
I'm looking to set up a temporary point to point system at a long distance range.
Ideally, there would be 2 cameras; one pointed right at the target, the second one set back few (several) yards back to catch a wider angle (flyers, wind corrections, etc.).
On the receiving end, there would need to be another 12VDC system with a router, maybe even an NVR and obviously a display or 2 (PC or tablets).

Working distance would be up to 2 miles initially, stretching to 5 Km in the future.

Being invaded?
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
Post 7 made on Monday April 15, 2019 at 12:16
Ernie Gilman
Yes, That Ernie!
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On April 15, 2019 at 04:50, Nick-ISI said...
.....humour?

Apparently a lot of my humor (I'm American, so I don't do humour) is too subtle.
I'm starting to think you may even be human!!

Well, don't hurt yourself.
;-)
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
OP | Post 8 made on Wednesday April 17, 2019 at 15:47
Mario
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Sorry guys, been busy working ( and shooting) crazy hours.

Ernie, it's for 'known distance' long-range shooting.
Typically 600+ yards (up to about 1/2 mile) is considered long-range, with longer distances getting names like ultra, extreme, etc.

1/2 mile and longer shots are getting really tough to spot even with really expensive spotting scopes.
For known distance shooting (paper or steel targets) it makes sense to set up a wireless camera system and observe the shoots on a monitor/tablet.
OP | Post 9 made on Wednesday April 17, 2019 at 15:59
Mario
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A few days ago I stumbled upon this post.
It seems to cover what I'll need.
Ordering parts now. Should know how it performs in a few weeks.

[Link: community.ubnt.com]
Post 10 made on Wednesday April 17, 2019 at 20:04
Ranger Home
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On April 17, 2019 at 15:59, Mario said...
A few days ago I stumbled upon this post.
It seems to cover what I'll need.
Ordering parts now. Should know how it performs in a few weeks.

[Link: community.ubnt.com]

Well isnt that the PERFECT thread to stumble across! lol. Congrats.
OP | Post 11 made on Sunday April 28, 2019 at 13:33
Mario
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Quick update.
I had some time yesterday evening, so I threw some parts together:
[Link: photos.app.goo.gl]

and I went up to 3.5 miles. I'm sure I could get longer, but that's the longest distance I had readily available around the house.
[Link: photos.app.goo.gl]

I was able to see full, 4MP video out of the camera. No dropout, no lag, no issues.
[Link: photos.app.goo.gl]

I'm sure I could get longer distance out of it, but as the goal of the experiment is to be able to set few cameras at the long distance range, I can't see ever going beyond 5km (3.10686 miles).

Initial trials will be 1,000 yards, known distance range, and stretching it to 1mile (1760 yards) off range.
Post 12 made on Sunday April 28, 2019 at 13:43
Fins
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Roughly, how much do you have in this setup?
Civil War reenactment is LARPing for people with no imagination.

OP | Post 13 made on Sunday April 28, 2019 at 17:16
Mario
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When It's set and done -- about $400-$500.
I still need to package this in ammo cases.
I want to purchase 2 new car batteries -- one on each end.
A power switch, some fuses, different cameras (1 up close and 1 set further back). With 2 or more cameras I'll also need PoE network switch and 12to48VDC converter.
I might duplicate target setup for a few different distances. That way I can have it set at 1,000, 900 & 800 or 700.
Or, I might do something like this on the remote end: [Link: amazon.com]


For now, this is what I got:
$65 for 2 antennas, although I made a mistake as I was really trying to buy the M5s.
[Link: ebay.com]

$53 for 2 Tycon Systems TP-DCDC-1224 Power Over Ethernet Injector
[Link: ebay.com]

~$100 for PoE camera that I used for testing only

Free, old ass Netgear WiFi router (not pictured) that just so happen to use 12VDC as input.

Few battery clamps laying around from BatteryTender kits I buy.
Some 22/2 & 22/4 security wire. Few Cat5e patch cables.
The whole thing works with the camera's (HikVision in my test) software on my phone or laptop.


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