[R-390] High Electrical hash noise level

rbethman rbethman at comcast.net
Mon Mar 28 14:06:23 EDT 2011


In my case, I was getting it through the power circuits.  Drove me batty!

In Steve's case, he going to need some assistance.  Someone with a 
"Selective Frequency Voltmeter", such as an HP-312 is one way to "track".

A handheld battery operated shortwave radio.  Go around the power panel 
- AFTER seeing how bad it is near the furnace.

Disconnect the R-390A antenna, and just leave about a two or three foot 
jumper in the shack attached.  *IF* that still gets the hash, remove it 
and listen again.

Steve - If you have an oscilloscope, OR one you can borrow WITH the 
owner, check the power receptacle where the R-390A is plugged in.

Ultimately, he's going to have to get Trane involved.

Bob - N0DGN



On 3/28/2011 1:48 PM, William A Kulze wrote:
> I was wondering about that. I don't think my new propane boiler does it, but I've got a propane "salamander" type heater that the igniter continually clicks. Picked up by the radio, but through the antenna, I think, and not the power circuit. Noise blanker killed it.
>
> Bill W2NVD
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] On Behalf Of rbethman
> Sent: Monday, March 28, 2011 1:38 PM
> To: r-390 at mailman.qth.net
> Subject: Re: [R-390] High Electrical hash noise level
>
> Steve,
>
> You are "experiencing" the *NEW* wonders of the "no pilot flame"
> methodology!
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