[Lowfer] Light Dimmer - Beyond Superposition...

[Dave Brown]

QST had a design for one published years ago that was reputed to work 
well.- I'll look out the reference. Only reason I recall this is I 
needed one at the time but never got it off the 'to do' list!

All requests for phasing type noise cancelling ccts etc noted - if I 
get time I'll sort it all out tonight (scan and clean up etc)  and 
send off to all requestors.
73
 Dave, ZL3FJ

----- Original Message ----- 
From: "Scott Tilley" <sthed475 at telus.net>
To: "Discussion of the Lowfer (US, European, &amp;UK) and MedFer 
bands" <lowfer at mailman.qth.net>
Sent: Tuesday, January 13, 2009 6:35 PM
Subject: Re: [Lowfer] Light Dimmer - Beyond Superposition...


> To expand the topic one can also consider a line-synchronous noise
> blanker for LF use.  This is different the the asynchronous types in
> your HF rig...
>
> These guys only work on noise coming from mains powered dimmers and 
> such
> but can be very effective on multiple sources of dimmer noise such 
> as
> can be found in an urban QTH.
>
> Have a look here for a great description of a very useful design:
> http://www.ka7oei.com/syn_blank.html
>
> I haven't seen much other literature on this method.  Anyone else 
> got
> anything?
>
> 73 Scott
>
>
> John Gibbs wrote:
>> Everyone  --  Thanks for enhancing this subject...  Following with
>> interest as lots of noise at my QTH
>>
>>
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