Local hippies will go nuts if we start drilling many dozens of trees and attaching stuff. The place where the PTP radios go on the far end of the copper and fiber can have some trees trimmed...
Thankfully this is in an area where there is zero risk of damage from off road/ATV or 4x4s, somebody would have to maliciously go into the forest and decide to mess with the fiber. Squirrel and mouse/rat chewing is definitely something to think about. On Thu, Jul 7, 2016 at 7:18 AM, Chuck McCown <[email protected]> wrote: > Aerial. Use drive hooks in trees. Run a messenger strand for support and > zip tie the cables to it. Better yet lash it. > > *From:* Eric Kuhnke <[email protected]> > *Sent:* Wednesday, July 06, 2016 11:21 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Practical/low-cost 18AWG copper outdoor > > Now to figure out how to economically do 2250+ ft (about 700m) of somewhat > flexible duct through a forest... > > > > On Wed, Jul 6, 2016 at 8:03 PM, That One Guy /sarcasm < > [email protected]> wrote: > >> always do a duct, always. A cable of any type is always nice, but a >> really long hole is always better. When I become rich man and can put stuff >> in dirt it will always be a path for something else. Expensive containers >> and cheap removable innards, like those washable condoms of yore. >> >> On Wed, Jul 6, 2016 at 9:24 PM, Trey Scarborough <[email protected]> wrote: >> >>> what are you planning on using for the fiber? just laying it on the >>> ground as well. I would use liquid tight and pull through some solid 18awg >>> that would last the longest or some inch and a quarter duct and pull both >>> through. >>> >>> On 7/6/2016 1:38 PM, Jeremy wrote: >>> >>>> Not sure what kind of rodents you have there, but I definitely recommend >>>> conduit and buried. I have seen conduit not buried through the woods >>>> and it gets squished and broken (if it is PVC) by Moose, deer, etc. I >>>> have seen direct burial not in conduit eaten by Gophers or Voles or some >>>> crap. Those kind of jobs are usually the type that you don't want to do >>>> twice. >>>> >>>> On Wed, Jul 6, 2016 at 11:14 AM, Chuck McCown <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Use isolation transformers. And call it a speaker wire. You are >>>> sending a loud 60 cycle tone. >>>> >>>> *From:* Eric Kuhnke <mailto:[email protected]> >>>> *Sent:* Wednesday, July 06, 2016 11:10 AM >>>> *To:* [email protected] <mailto:[email protected]> >>>> *Subject:* Re: [AFMUG] Practical/low-cost 18AWG copper outdoor >>>> >>>> Yeah, can't do either of those... Burying it to Canadian electrical >>>> code compliant depth through 700 meters (2296 ft) of forest, fallen >>>> trees and rocks isn't going to happen. There is the slight >>>> possibility of electrical inspection based on where the power would >>>> be coming from. >>>> >>>> Using a 110/240VAC input active PFC 200W power supply that can >>>> output 54.5VDC and a DC-DC converter on the load end to bring things >>>> back to normal 46-48VDC will work. >>>> >>>> AC to DC meanwell RSP-200-48, $41 >>>> DC-DC meanwell SD-200C-48 $71 >>>> >>>> >>>> >>>> On Wed, Jul 6, 2016 at 9:44 AM, Bill Prince <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Or you could buck it to 480VAC or more... >>>> >>>> >>>> >>>> bp >>>> <part15sbs{at}gmail{dot}com> >>>> >>>> On 7/6/2016 9:34 AM, Chuck McCown wrote: >>>> >>>>> 240 AC over direct burial romex. All the power you might want. >>>>> >>>>> *From:* Eric Kuhnke <mailto:[email protected]> >>>>> *Sent:* Wednesday, July 06, 2016 10:29 AM >>>>> *To:* [email protected] <mailto:[email protected]> >>>>> *Subject:* Re: [AFMUG] Practical/low-cost 18AWG copper outdoor >>>>> >>>>> It's looking like $0.25/ft for the cable and the singlemode >>>>> fiber is less... Also the area is totally filled with trees, >>>>> trees cannot be cut for various reasons, it's the side of a >>>>> bluff on a hilltop. Branches and a few things in one >>>>> particular direction (about 10 degrees of azimuth) would be >>>>> cut to put in the PTP link. North of 49 latitude. >>>>> >>>>> With DC power over 14AWG it could be enough power for up to >>>>> 75W of radios on the far end. Off grid solar to do this would >>>>> be $4000 of panels batteries enclosure, charge controller. >>>>> >>>>> Very challenging site for solar, if you were to camp there you >>>>> might see 2-3 hours of direct sunlight per day max due to tree >>>>> shading. >>>>> >>>>> On Wed, Jul 6, 2016 at 8:57 AM, Bill Prince >>>>> <[email protected] <mailto:[email protected]>> wrote: >>>>> >>>>> For that amount of cable, at 50 cents a foot, I would >>>>> probably do a small solar setup. What is the latitude? >>>>> >>>>> >>>>> bp >>>>> <part15sbs{at}gmail{dot}com> >>>>> >>>>> >>>>> On 7/5/2016 4:25 PM, Eric Kuhnke wrote: >>>>> >>>>> Due to terrain I'm helping somebody design a network >>>>> link where a PTP radio will go on the side of a tree >>>>> on the opposite side of a mountain from where AC >>>>> power, a router and other network equipment is located. >>>>> >>>>> We're looking at 600 to 700 meters of singlemode fiber >>>>> and a small NEMA4X junction box with the radio on the >>>>> far side of the hill, containing a SC-SC patch cable >>>>> bulkhead and a meanwell DC-DC converter. >>>>> >>>>> It looks like based on the wattage of the radio and >>>>> voltage drop calculations for 18-2 cable that we can >>>>> get away with a 56VDC power supply at the power >>>>> source, dropping to not lower than 35VDC at the >>>>> receiving end, which will be fed into a DC-DC >>>>> converter to bring the output back up to 52.5VDC for >>>>> the radio. >>>>> >>>>> If you had to run 600-700m of 18AWG cable outdoors >>>>> through a forest, how would you do it? SJOOW type >>>>> cable may not hold up over a long enough time. Ideally >>>>> something that is more armored than SJOOW (it can be >>>>> much less flexible if needed). Cost is somewhat of a >>>>> factor. >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> >>> >>> >> >> >> -- >> If you only see yourself as part of the team but you don't see your team >> as part of yourself you have already failed as part of the team. >> > >
