They sell landscaping cable by the foot at big box home stores, I seem to remember it’s like outdoor rated zipcord. I have used 14x2 tray cable for DC+fiber on towers, I think it can be direct buried, I’ve never used it that way. Something like this:
https://prowireandcable.com/14-awg-2-conductors-vntc-non-shielded-tray-cable-round/ https://www.showmecables.com/82-600-290-1000 I’ve found the cable retailers will go out and find it from one of the major brands won’t necessarily be the same all the time but I’ve received Belden, General Cable, and another one I’d never heard of but it was fine. Sometimes you can find partial spools of tray cable on eBay, either they bought a 1000 ft spool for a job and only used 300 ft, or it “fell off a truck”. From: AF <[email protected]> On Behalf Of Dev Sent: Sunday, November 9, 2025 4:34 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] PoE out to 650 feet? I think we’ll run the data over fiber. The difference between 55V needing 14/2 and 22 gauge working at 190VDC is pretty significant price difference, if I could find some direct bury 22 gauge, don’t know if there’s such a thing widely available though. It looks like the converter are $100 per end, so maybe 14/2 is still cheaper overall and the 3V drop won’t hurt anything? On Nov 7, 2025, at 7:13 PM, Adam Moffett <[email protected] <mailto:[email protected]> > wrote: Hah! I almost brought up RTV line power. I made a power calculator spreadsheet awhile back and I determined that +/-190V can deliver 25W over 10,000ft on one 26ga pair. Or something like 100W to 5000ft on 22ga. That’s expensive hardware, but a couple of DC-DC will do the job at 650ft. The problem is that while stepping up the voltage on the power circuit is straightforward, it’s not so easy to do that with the actual Ethernet signal. You could run two cables in parallel and use one cable to carry power to switches or bridges along the path. Or just buy the silly extender devices. No need to play around when they make a product for this.
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