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12-10-2014, 02:28 PM
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#1
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Montana Master
Join Date: Nov 2013
Location: Willow Spring, NC
Posts: 992
M.O.C. #13909
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Antenna amp and light interaction
I have a strange interaction between my OTA antenna amp and certain lights. My television in the bedroom has a display feature that shows the signal strength of the TV signal. I have found that on certain stations that are on the fringe of service, I can go from good signal to nothing simply by turning on the bedroom ceiling LED pancake light.
Cutting the light off fixes the issue. I inspected the coax connectors connected to the amp, but didn't see any bad connections, as least visually.
At the last CG, it was only one station that had the problem. 13-1 Digital HDTV.
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Jim & Martha Abernathy
2014 Montana 3402RL Level UP, Sailun S637's, TST 507, 500W solar
2014 Ram 3500 Laramie® 4x2 diesel dually crew-cab 3.73 axle, Reese R20
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12-10-2014, 04:17 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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It's my understanding, (read I heard that, not that I understand it), that certain LED lights will interfere with radio and TV signals. Something about a part they don't have.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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12-10-2014, 10:33 PM
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#3
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Montana Master
Join Date: Nov 2013
Location: Willow Spring, NC
Posts: 992
M.O.C. #13909
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I assumed it was a lousy regulator design generating a lot of noise. Not sure if a capacitor on the power lead would solve it.
__________________
Jim & Martha Abernathy
2014 Montana 3402RL Level UP, Sailun S637's, TST 507, 500W solar
2014 Ram 3500 Laramie® 4x2 diesel dually crew-cab 3.73 axle, Reese R20
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12-11-2014, 02:35 AM
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#4
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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We changed over to LED and bought all our bulbs from Michael and Kat. As a result we haven't had a single problem, so I would think you are correct.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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12-11-2014, 02:40 AM
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#5
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Easy enough to put something like a .01 mfd cap across power and ground to see if it makes a difference. Best value would be selected knowing the freq. range of the noise...but anything small in value should give you an indication of if it has any effect. When it comes to radiated or conducted emissions, good grounding is key to reducing these rf sources...but not something that is possible in this case. Just make sure the cap has a voltage rating of at least 15 vdc. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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