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#1
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My HT, power supply and amp are in the living room. The coax runs into
the kitchen with a Diamond 2 meter magmount antenna out the kitchen window on a steel plate. I have had no problems for 11 years. Yesterday I keyed down and heard a buzz coming from the kitchen. I had a friend key down, went to the kitchen to see where the buzz is coming from and it's coming from the outlet next to the window that has NOTHING plugged into it! My units are all plugged in in the living room. What's happening here RF wise? If you have any idea, please either post it here or email me. I have an Extra Class License but this isn't in the books :-( Thanks in advance! |
#2
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![]() "moth ." wrote in message ... My HT, power supply and amp are in the living room. The coax runs into the kitchen with a Diamond 2 meter magmount antenna out the kitchen window on a steel plate. I have had no problems for 11 years. Yesterday I keyed down and heard a buzz coming from the kitchen. I had a friend key down, went to the kitchen to see where the buzz is coming from and it's coming from the outlet next to the window that has NOTHING plugged into it! My units are all plugged in in the living room. What's happening here RF wise? If you have any idea, please either post it here or email me. I have an Extra Class License but this isn't in the books :-( Thanks in advance! Maybe a loose wire in the outlet ? Sometimes the outlets are wired to each other and as current is drawn from them they can cause problems. |
#3
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On Mon, 20 Sep 2004 19:57:12 -0400, moth . hath writ:
My HT, power supply and amp are in the living room. The coax runs into the kitchen with a Diamond 2 meter magmount antenna out the kitchen window on a steel plate. I have had no problems for 11 years. Yesterday I keyed down and heard a buzz coming from the kitchen. I had a friend key down, went to the kitchen to see where the buzz is coming from and it's coming from the outlet next to the window that has NOTHING plugged into it! My units are all plugged in in the living room. What's happening here RF wise? If you have any idea, please either post it here or email me. I have an Extra Class License but this isn't in the books :-( Thanks in advance! Pro'lly the branch line to feed that outlet comes _down_ the outside wall (from the attic / from the ceiling.) Makes a GREAT little vertical antenna -- great for coupling RF from your nearby vertical antenna. I'd take the vanity plate off the outlet, darken the room, and re-create the scenario you explained above. Get in close and see what is arcing, buzzing, spitting. As others have said, it's pro'lly a loose connection. I have Extra Class License, too, but ... 73 Jonesy -- | Marvin L Jones | jonz | W3DHJ | linux | Gunnison, Colorado | @ | Jonesy | OS/2 __ | 7,703' -- 2,345m | config.com | DM68mn SK |
#4
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My HT, power supply and amp are in the living room. The coax runs into
the kitchen with a Diamond 2 meter magmount antenna out the kitchen window on a steel plate. I have had no problems for 11 years. Yesterday I keyed down and heard a buzz coming from the kitchen. I had a friend key down, went to the kitchen to see where the buzz is coming from and it's coming from the outlet next to the window that has NOTHING plugged into it! My units are all plugged in in the living room. What's happening here RF wise? If you have any idea, please either post it here or email me. I have an Extra Class License but this isn't in the books :-( Thanks in advance! Is that by any chance an outlet with a GFCI (ground fault circuit interrupter) built in? Current electrical codes generally require that these be used for all outlets around areas with water. They usually have a solenoid or other sort of circuit breaker inside, and it's possible that this is being partially activated by rectified RF currents. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#6
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"Andrew VK3BFA" wrote in message
om... (Dave Platt) wrote in message ... My HT, power supply and amp are in the living room. The coax runs into the kitchen with a Diamond 2 meter magmount antenna out the kitchen window on a steel plate. I have had no problems for 11 years. Yesterday I keyed down and heard a buzz coming from the kitchen. I had a friend key down, went to the kitchen to see where the buzz is coming from and it's coming from the outlet next to the window that has NOTHING plugged into it! My units are all plugged in in the living room. What's happening here RF wise? If you have any idea, please either post it here or email me. I have an Extra Class License but this isn't in the books :-( Thanks in advance! Is that by any chance an outlet with a GFCI (ground fault circuit interrupter) built in? Current electrical codes generally require that these be used for all outlets around areas with water. They usually have a solenoid or other sort of circuit breaker inside, and it's possible that this is being partially activated by rectified RF currents. Duh! - pull it off the wall and have a look is a good place to start. Andrew VK3BFA Not always - are those things "visible". I agree with the gentleman's thought of a GFIC being tripped or influenced somehow with RF. RF does strange things and if you're not an old hand at it, it can be very confusing - even with experience, it can create some confusion! Move the antenna to another spot in the room or house away from outlets, etc. While you may not hit the same repeaters, you can at least eliminate the RF as the problem of the buzzing at that outlet. On the other hand, it is possible too, that if the GFIC wasn't bad to start with, an RF Overload "could" have created a problem - depending on the make up on that particular unit. They're not that expensive to replace, if you know how to do one. While I don't think it a high probability of the RF doing damage to it, I wouldn't dismiss the thought completely. I've seen and I'm sure others have as well, things in our electronics dealings which go beyond theory and explanation at times. It is never good to "assume" anything when dealing with the unknown. Eliminate all possibilities until the situation is cured. NS |
#7
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"NO SPAM" wrote in message . verio.net...
"Andrew VK3BFA" wrote in message om... (Dave Platt) wrote in message n Duh! - pull it off the wall and have a look is a good place to start. Andrew VK3BFA Not always - are those things "visible". I agree with the gentleman's thought of a GFIC being tripped or influenced somehow with RF. RF does strange things and if you're not an old hand at it, it can be very confusing - even with experience, it can create some confusion! Move the antenna to another spot in the room or house away from outlets, etc. While you may not hit the same repeaters, you can at least eliminate the RF as the problem of the buzzing at that outlet. On the other hand, it is possible too, that if the GFIC wasn't bad to start with, an RF Overload "could" have created a problem - depending on the make up on that particular unit. They're not that expensive to replace, if you know how to do one. While I don't think it a high probability of the RF doing damage to it, I wouldn't dismiss the thought completely. I've seen and I'm sure others have as well, things in our electronics dealings which go beyond theory and explanation at times. It is never good to "assume" anything when dealing with the unknown. Eliminate all possibilities until the situation is cured. NS Agreed - so isnt the simplest, least most blatantly obvious thing to do is physically examine the offending object. Andrew VK3BFA |
#8
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Thank you, everyone for helping me. The handyman just came up. I could
have sworn I tried this with nothing plugged in but the hair dryer seems to have been the problem. There's a reset button which was off (when you turned the dryer on, it stops it from working), When this button is off, the socket buzzes when I key the HT. When the button is reset, no buzzing. We tried it in another kitchen outlet and it did the same thing. So it's not the outlet that needs fixing. What's happening technically is beyond me. If anyone understands this, I'd appreciate an explanation. I am wondering how much of this may be due to old coax. I'm careful to not crush it...the window is never tight, I always leave a space. |
#9
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![]() "Andrew VK3BFA" wrote in message om... "NO SPAM" wrote in message . verio.net... "Andrew VK3BFA" wrote in message om... (Dave Platt) wrote in message n Duh! - pull it off the wall and have a look is a good place to start. Andrew VK3BFA Not always - are those things "visible". I agree with the gentleman's thought of a GFIC being tripped or influenced somehow with RF. RF does strange things and if you're not an old hand at it, it can be very confusing - even with experience, it can create some confusion! Move the antenna to another spot in the room or house away from outlets, etc. While you may not hit the same repeaters, you can at least eliminate the RF as the problem of the buzzing at that outlet. On the other hand, it is possible too, that if the GFIC wasn't bad to start with, an RF Overload "could" have created a problem - depending on the make up on that particular unit. They're not that expensive to replace, if you know how to do one. While I don't think it a high probability of the RF doing damage to it, I wouldn't dismiss the thought completely. I've seen and I'm sure others have as well, things in our electronics dealings which go beyond theory and explanation at times. It is never good to "assume" anything when dealing with the unknown. Eliminate all possibilities until the situation is cured. NS Agreed - so isnt the simplest, least most blatantly obvious thing to do is physically examine the offending object. Andrew VK3BFA NO, because parts which are being activated by RF won't show signs of anything outward, such as being blown. Things are not always OBVIOUS. There is nothing stopping one from looking, but RF induced troubles are virtually invisible until you figure out HOW the RF is doing it's magic. NS |
#10
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Thank you, everyone for helping me. The handyman just came up. I could
have sworn I tried this with nothing plugged in but the hair dryer seems to have been the problem. There's a reset button which was off (when you turned the dryer on, it stops it from working), When this button is off, the socket buzzes when I key the HT. When the button is reset, no buzzing. We tried it in another kitchen outlet and it did the same thing. So it's not the outlet that needs fixing. What's happening technically is beyond me. If anyone understands this, I'd appreciate an explanation. I am wondering how much of this may be due to old coax. I'm careful to not crush it...the window is never tight, I always leave a space. |
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