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Subject:
Re: Getting rid of hash caused by battery charging unit in RV
From:
Tom Behler <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Mon, 14 May 2012 21:57:11 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (61 lines) 
    Ed,

The charger is indeed a smart charger--and that I know for sure.

73 from Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Ed Malmgren" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 14, 2012 9:52 PM
Subject: Fw: Getting rid of hash caused by battery charging unit in RV


> Tom,
> The charger in your r v may be a smart charger.  If it is there probably 
> is
> nothing you can do about the interference.  I have both types of chargers
> and the old heavy transformer , linier type should not make any noise.  My
> smart charger is so no communication can be done.  Get a different charger
> perhaps.  73Ed   K7UC
>
> --------------------------------------------------
> From: "Tom Behler" <[log in to unmask]>
> Sent: Monday, May 14, 2012 5:53 PM
> To: <[log in to unmask]>
> Subject: Getting rid of hash caused by battery charging unit in RV
>
>> Hi, all.
>>
>> I know we have discussed similar topics before, but I have an issue in my
>> RV
>> that is now affecting my HF set-up big-time.
>>
>> Specifically, there is a built-in charging unit for the house battery 
>> that
>> seems to be creating more and more interference on the HF frequencies.
>> The
>> interference occurs when the charger is in either the "use" or "store"
>> mode.
>> I know that the charger is causing the interference, since when I switch
>> from "use" to "store
>> ", the interference goes away for a few minutes, until the charger 
>> re-sets
>> itself, after which time, it gradually returns.
>>
>> When we unplug the RV from the electrical service at our camp site, the
>> interference disappears completely.
>>
>> As far as I know, since the charger is directly wired into the RV, there
>> is
>> no way to turn it completely off.
>>
>> Does anyone have any simple remedies for me to try in order to get rid 
>> of,
>> or at least lessen this interference.  It is so bad that it makes the
>> 40-meter band unusable, which is why I was not on Saturday's round table.
>> 20 meters isn't much better either, which is rather discouraging.
>>
>> 73 from Tom Behler: KB8TYJ
>

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