[RFI] Radar Engineers RFI Analyzers

[Paul Christensen]

>I have not detected any RFI from the inverter. I use a Radar Engineer's 
>Model 240A for a receiver. My car's engine, an Avalon, is a bigger problem. 
>I use my Tek scope, a TDS 210, to get a larger display and to print out the 
>scope pictures.

> The Astron inverter has a very precise 60 Hz modified sine wave, which you 
> can use to trigger the sweep to freeze the 60 cycle RFI pattern.

Alan,

That caught my attention.  When using the 240A with an external scope, I 
thought the 240A performed its own internal 60 Hz sync function.   Or, does 
that internal function only affect the 240A's LCD display?  Sounds like the 
240A has an output with a standard 1Vp-p video level for use with a scope. 
But then in that configuration, you need the external 60 Hz reference for 
scope triggering.


Paul Christensen
Jacksonville
W9AC

----- Original Message ----- 
From: "Alan Robinson" <robinsah at engr.orst.edu>
To: <jim at audiosystemsgroup.com>; "Rfi List" <rfi at contesting.com>
Cc: "Alan Robinson" <robinsah at engr.orst.edu>
Sent: Tuesday, December 25, 2012 3:12 AM
Subject: Re: [RFI] Radar Engineers RFI Analyzers


>
> 73, Alan W4LKE
>  ----- Original Message ----- 
>  From: Jim Brown
>  To: Rfi List
>  Sent: Monday, December 24, 2012 11:22 PM
>  Subject: Re: [RFI] Radar Engineers RFI Analyzers
>
>
>  On 12/24/2012 10:21 PM, Alan Robinson wrote:
>  > The Astron inverter has a */very /*precise 60 Hz modified sine wave,
>  > which you can use to trigger the sweep to freeze the 60 cycle RFI
>  > pattern.
>
>  How are emissions?
>
>  73, Jim K9YC
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