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| Thread ID: 80699 | 2007-07-02 08:39:00 | wireless network, electric fence interference ? | Joe Blogs (35) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 565107 | 2007-07-02 08:39:00 | Some friends of mine recently got broadband through Telecom with a wireless Dynalink modem (not sure of model number). They breed bulls for a living so have a fairly grunty electric fence system which covers most of the farm and surrounds their house. They have no trouble with the broadband connection but the wireless to their laptop will not work while the fence system is alive. Turning the fence off is not an option. Can anyone advise us if there a way around this with suppressors, whatever or something. |
Joe Blogs (35) | ||
| 565108 | 2007-07-02 09:03:00 | Have they tried turning the fence off for a short time to see if it is the fence that is causing the interference? It could be any number of things (including a dodgy wireless signal from the laptop) | Myth (110) | ||
| 565109 | 2007-07-02 09:15:00 | Have they tried turning the fence off for a short time to see if it is the fence that is causing the interference?Yes that is totally black and white. The wireless to their laptop will not work while the fence system is alive and works perfectly when the fence is switched off. | Joe Blogs (35) | ||
| 565110 | 2007-07-02 09:18:00 | Have they tried turning the fence off for a short time to see if it is the fence that is causing the interference? It could be any number of things (including a dodgy wireless signal from the laptop) I think that was covered: "They have no trouble with the broadband connection but the wireless to their laptop will not work while the fence system is alive." There is a hell of a lot of wide-band energy in an electric fence, although I would have doubted that it would extend into the Gigahertz region it may well do. It may well be radiating directly into the wireless device electronics at lower frequencies. Short (microsecond) bursts of energy could be enough to cause packet error. I have seen exceptional disturbances where the fence extended for kM, but only at lower frequencies. Improving the the electric fence earth is one place I would start. Cures most problems, but a seriously good earth away from the power mains earth is needed. |
godfather (25) | ||
| 565111 | 2007-07-02 09:28:00 | Improving the the electric fence earth is one place I would start. Cures most problems, but a seriously good earth away from the power mains earth is needed.That sounds like worth looking at, when I went for a short walk I could hear it clicking, not the click from the supply unit but coming from the wires so maybe its tracking down a bit of gorse or whatever. | Joe Blogs (35) | ||
| 565112 | 2007-07-02 09:37:00 | PS: When the fence is off the bulls make a b-line for the dairy farm down the road. | Joe Blogs (35) | ||
| 565113 | 2007-07-02 09:45:00 | PS: When the fence is off the bulls make a b-line for the dairy farm down the road. Surprise, surprise. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PJ:D :D |
Poppa John (284) | ||
| 565114 | 2007-07-02 10:26:00 | I think that was covered: "They have no trouble with the broadband connection but the wireless to their laptop will not work while the fence system is alive." I thought as much, but was clarifying that the obvious had not been overlooked (as is so often the case) |
Myth (110) | ||
| 565115 | 2007-07-02 22:27:00 | Electric fence requires the electrical earth return path . These earth currents can be quite strong . . . on a wet day standing next to the main earth pipe the impulse can be felt in bare feet . Agree with the earlier post, the impulse current is probably running via the Lan or Wireless hardware . The fence unit will need it's own earth system, away from the domestic equipment . On this note, the deeper the pipe in the ground the better, ( inverse square law thing . . . twice as deep 4 times the ground area or something like that :-/ ) I remember ramming a couple of 6 meter 2 inch pipes, standing on a workshop roof to get them started . cheers BGI |
bgi (12494) | ||
| 565116 | 2007-07-03 01:20:00 | Not totally on topic but. When we had our house rewired the electrician installed a new earth spike. This 2 meter steel rod looked as if it was going to be a hard job banging it into the ground, but no. The guy just stabbed the pole into the ground, pulled it out again and filled the hole with water. He then proceeded to work the pole up and down in the hole. To my surprise the pole just started to slide into the ground with little or no effort, just its own weight really, until, there was just a few inches above ground. He told me that it works on the same principal as liquefaction that you get in earthquakes. Guess it wouldn't work in solid rock though. :D | JackStraw (6573) | ||
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