Are you using a power supply with the radio or is it connected to 12 volts?
----- Original Message -----
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 14, 2012 7:53 PM
Subject: Re: Getting rid of hash caused by battery charging unit in RV
> And, John, the noise disappears with the antenna disconnected.
>
> 73 de KB8TYJ
>
> ----- Original Message -----
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 14, 2012 9:17 PM
> Subject: Re: Getting rid of hash caused by battery charging unit in RV
>
>
>>I think the first question is, did it do that before? If not, it may be
>> failing and just be time to replace it which might fix the problem. Other
>> wise, is the coax near it maybe you can reroute it? Can you hear it even
>> if
>> you disconnect the antenna? It could be simple as ferrite beads, or
>> rapping
>> the wires in aluminum foil, yes that works for some things I'm told the
>> older actiontec routers used with Verizon fios that was the trick to stop
>> their noise, if that wasn't a problem before, there's got to be a way to
>> fix
>> it.
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, May 14, 2012 7:53 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
>>
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