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Author Topic: Sprinkler System RFI  (Read 2212 times)
K1FEV
Member

Posts: 3




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« on: May 15, 2007, 10:58:40 AM »

When I transmit on 20M the sprinklers go on. Any suggestions?
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WB2WIK
Member

Posts: 21764




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« Reply #1 on: May 15, 2007, 01:04:06 PM »

Change bands, or use 20m only when the lawn needs watering?
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K1FEV
Member

Posts: 3




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« Reply #2 on: May 16, 2007, 08:41:57 AM »

I don't ragchew enough to keep the lawn wet. Good thing it's my sprinklers, all I have to do is unplug the power transformer.
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KC9IIZ
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Posts: 1




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« Reply #3 on: May 17, 2007, 06:51:16 AM »

I work for a place that has the auto flush toilets and anytime one of us with a work radio (UHF) transmits from a bathroom ALL the toilets flush.
I really freaks out the users of the toilets.
The manufacture has yet to figure out why. You would think that 2-3 watts would maybe affect one if you were very close to it. But is is all in he room. Some of these rooms have 20 flush units.
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K1FEV
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Posts: 3




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« Reply #4 on: May 17, 2007, 06:55:16 AM »

What a crappy deal !
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N3OX
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Posts: 8911


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« Reply #5 on: May 17, 2007, 11:20:58 AM »

"I don't ragchew enough to keep the lawn wet. Good thing it's my sprinklers, all I have to do is unplug the power transformer. "

Well there's a overcomplicated solution to this problem...

Get a band decoder for your radio, the kind that has relays to automatically switch auxiliary gear as you change bands.

Wire the sprinkler power through a relay that opens when you're on 20m ;-)

Dan
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73,
Dan
http://www.n3ox.net

Monkey/silicon cyborg, beeping at rocks since 1995.
WA1RNE
Member

Posts: 1006




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« Reply #6 on: May 19, 2007, 06:18:56 PM »


 Ferrites on the power cable and wiring to the control valves should take care of it.

 

 ...WA1RNE
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WB6VIC
Member

Posts: 1




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« Reply #7 on: June 10, 2007, 10:36:21 AM »

I put a switch to disconnect power to the solenoids.  That way the power transformer can stay plugged in and the timer doesn;t lose its programming.  I have to remember to turn it off and on, of course.
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