Howard:

The noise has always been there, in the form of birdies and other junk on 
certain frequencies, but it has gotten worse recently--say in the past year 
or so.  Now, it covers more bands and freqs than usual.

This leads me to believe that in the bigger picture, there is something 
going on with the charger itself, which ultimately means it may need to be 
replaced.

Yet, it does seem to charge the battery just fine, even with the hash 
problem.

So, for now, I'm trying to minimize the noise until we can get it looked at 
more thoroughly by someone who knows much more about chargers like this than 
I do.

73 from Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Howard, W A 9 Y B W" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 14, 2012 9:09 PM
Subject: Re: Getting rid of hash caused by battery charging unit in RV


> Tom,
>
> I haven't been on this list very long, however, I believe you have had 
> this
> RV for a while.  If this is the case, is this the first time the noise has
> appeared?  If so, what has changed?  Did you have the noise before?
>
> I know, a lot of questions.  Just trying to get the facts!
>
> 73's
>
> Howard #3
>
> ----- Original Message ----- 
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 14, 2012 6:53 PM
> 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
>