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02-04-2010, 12:16

My radio in the front had static in it from the florescent lights. I installed a
new one because I wanted a HD radio & it still has static in it. The old radio
in the bedroom which is original equipment. Is there a suppressor for static
some where up front that went bad?
Don Spithaler
89 SP 36'
Butler, PA New Port Richey, FL for the winter

02-04-2010, 12:21

Under one of your couches is a electronic filter. That box is about 6 inches by 6 inches by 12 inches long. The older coaches had boxes larger then that. There is just one cable going to it. I suspect that in that shielded cable are 2 wires. I never took it apart and it weighs about 30 pounds. Yours may have quit.

ERnie in AZ

Ernie Ekberg

83PT40

Wanderlodge

Weatherford, Tx 817-475-3991

www.ernieekbergflooring.net

--- On Thu, 2/4/10, DonS wrote:

From: DonS
Subject: [WanderlodgeForum] Radio static
To: WanderlodgeForum@yahoogroups.com
Date: Thursday, February 4, 2010, 6:16 PM

My radio in the front had static in it from the florescent lights. I installed a new one because I wanted a HD radio & it still has static in it. The old radio in the bedroom which is original equipment. Is there a suppressor for static some where up front that went bad?
Don Spithaler
89 SP 36'
Butler, PA New Port Richey, FL for the winter

02-04-2010, 14:44

The box you describe is the 12 volt "filter" for the power. It contains 3 large capacitors (be careful, short one and it'll knock you on your rear -- big time). While capacitors can "go bad" -- it isn't likely.

Part of the 12 volt system is "filtered" (passing though the filter) and part is not. It is vital to make sure that the radio is wired into the filtered electrical system. Also, make sure that there isn't something wired in that crosses between the filtered and non filtered power source. (This is a matter of tracing out wires to ensure they're where they're supposed to be.)

However, fluorescent lights (particularly ballasts) can generate RF signals that directly interfere with the radio signal. This is more frequent as the ballasts degrade over time.

So you may need to "do" something about the fluorescent lights directly rather than a filtering problem. A radio shop may have a filter for the antenna wire -- or shielding -- that might solve the problem.

Pete Masterson

(former) '95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Feb 4, 2010, at 4:21 PM, Ernie Ekberg wrote:

Under one of your couches is a electronic filter. That box is about 6 inches by 6 inches by 12 inches long. The older coaches had boxes larger then that. There is just one cable going to it. I suspect that in that shielded cable are 2 wires. I never took it apart and it weighs about 30 pounds. Yours may have quit.
ERnie in AZ

Ernie Ekberg
83PT40
Wanderlodge
Weatherford, Tx 817-475-3991
www.ernieekbergflooring.net

--- OnThu, 2/4/10, DonS<"dspithaler@gmail.com">wrote:

From: DonS <"dspithaler@gmail.com">
Subject: [WanderlodgeForum] Radio static
To:"WanderlodgeForum@yahoogroups.com"
Date: Thursday, February 4, 2010, 6:16 PM

My radio in the front had static in it from the florescent lights. I installed a new one because I wanted a HD radio & it still has static in it. The old radio in the bedroom which is original equipment. Is there a suppressor for static some where up front that went bad?
Don Spithaler
89 SP 36'
Butler, PA New Port Richey, FL for the winter

02-05-2010, 02:00

ThanksÂ Â Â Ernie & PeteÂ Â I'll see what I can find.

Don Spithaler
89 SP 36'
Butler, PA Â -----Â New Port Richey, FLÂ Â Â Â

On Thu, Feb 4, 2010 at 9:44 PM, Pete Masterson <"aeonix1@mac.com"> wrote:

Â

The box you describe is the 12 volt "filter" for the power. It contains 3 large capacitors (be careful, short one and it'll knock you on your rear -- big time). While capacitors can "go bad" -- it isn't likely.Â

Part of the 12 volt system is "filtered" (passing though the filter) and part is not. It is vital to make sure that the radio is wired into the filtered electrical system. Also, make sure that there isn't something wired in that crosses between the filtered and non filtered power source. (This is a matter of tracing out wires to ensure they're where they're supposed to be.)

However, fluorescent lights (particularly ballasts) can generate RF signals that directly interfere with the radio signal. This is more frequent as the ballasts degrade over time.Â

So you may need to "do" something about the fluorescent lights directly rather than a filtering problem. A radio shop may have a filter for the antenna wire -- or shielding -- that might solve the problem.Â

Pete Masterson
(former) '95 Blue Bird Wanderlodge WBDA 42
El Sobrante CA
"aeonix1@mac.com"

On Feb 4, 2010, at 4:21 PM, Ernie Ekberg wrote:

Under one of your couches is a electronic filter. That box is about 6 inches by 6 inches by 12 inches long. The older coaches had boxes larger then that. There is just one cable going to it. I suspect that in that shielded cable are 2 wires. I never took it apart and it weighs about 30 pounds. Yours may have quit.

ERnie in AZ

Ernie Ekberg
83PT40
Wanderlodge
Weatherford, TxÂ 817-475-3991

www.ernieekbergflooring.net

--- OnÂ Thu, 2/4/10, DonSÂ <"dspithaler@gmail.com">Â wrote:

From: DonS <"dspithaler@gmail.com">
Subject: [WanderlodgeForum] Radio static
To:Â "WanderlodgeForum@yahoogroups.com"

Date: Thursday, February 4, 2010, 6:16 PM

My radio in the front had static in it from the florescent lights. I installed a new one because I wanted a HD radio & it still has static in it. The old radio in the bedroom which is original equipment. Is there a suppressor for static some where up front that went bad?Â

Don SpithalerÂ
89 SP 36'Â
Butler, PA New Port Richey, FL for the winterÂ

02-05-2010, 03:26

I have an "Accessory" switch on the left hand side of the driversarea that has to be turned on to have sound from the televison come through the speakers in the front of the coach. There is no static or humming when the switch is off and the radio is playing. When theswitch is turned on to hear the televison there is an annoying humming sound. Does the filter talked about in the previous post have anything to do with this? I have considered buying a couple of speakers and hooking the tv straight into them and bypassing the accessory switch. I don't care about surround sound. I just want to get rid of the humming noise.

Any suggestions?

Randy Merrill

2003 LX

Ocala, FL

02-05-2010, 13:35

Likely you're hearing 60-cycle hum. That's caused by circuits in the TV passing unwanted interference through to the 12vdc based sound system. There should be simple filters that will knock that out. Visit a knowledgeable mobile audio dealer and have a technician check out the system (to make sure my guess is correct) and/or to recommend a device you can wire into the speaker circuit yourself.