Wire size in an invisible fence

I ran a bit short while installing an invisible dog fence. They supply 20 gauge PE insulated wire. Another reel of their wire is $25. A reel of 14 gauge regular wire is $12.

The instruction book cautions against mixing sizes. What difference would it make? I am guessing that the heavier wire might radiate a bit wider field, but I can live with that. Any other problem you can see? I don't know what normal insulation is but guess it is PVC? That is no more likely to deteriorate in the ground than PE, is it?

Any insights would be appreciated. Once it is in the ground it is too late.

Also, do you think the waterproof wire nuts that HD sells will be okay? The ones that came with the kit are more elaborate, but also bulkier and more difficult to bury.

Thanks.

Reply to
John
Loading thread data ...

The *impedance* difference can be important. Doesn't an 'invisible fence' work at radio frequencies? If so, a different impedance could be a problem ('reflection' and standing waves??)

Don't know for sure, never worked with one. Just some thoughts.

daestrom

Reply to
daestrom

I connected it up above ground, and the field was much smaller. I had to turn it to the highest setting to get the field size back. I don't know if it would work out, but didn't want to mess with it. So, I found some 18 guage, and that worked fine; but took a while to find it.

If anyone has an explanation why 14 & 20 gauge gives a much smaller field than 18 & 20...

Reply to
John

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.