Re: [TenTec] Orion II AM Mic Adjustment

["Bob McGraw - K4TAX" <RMcGraw@Blomand.net>]

The Heath SB-610 or older HO-10 do the job nicely and accurately and for 
about 1/2 the price of these boxes.  And of course should your test 
equipment cache have a general purpose o'scope then you have all you need. 
The next challenge is to learn what it is displaying and what it means.
73
Bob, K4TAX



----- Original Message ----- 
From: "Dr Gerald N Johnson" <geraldj@storm.weather.net>
To: <tentec@contesting.com>
Sent: Wednesday, October 03, 2007 9:37 PM
Subject: Re: [TenTec] Orion II AM Mic Adjustment


> On Wed, 2007-10-03 at 08:43 -0700, Ron Castro wrote:
> > Or save the cash and build your own:
> >
> > http://amfone.net/ECSound/RFsampler.htm
> >
> >          Ron  N6IE
> >       www.N6IE.com
> These boxes will not show nonlinearities in the modulation, they only
> show if the range of modulation is not full. They do not show peak
> limiting of excessive positive modulation or excessive negative
> modulation. If they show any nonlinearities they are of the detector,
> not the transmitter. But they will show pretty trapezoids because the
> audio phase is always perfect.
> --
> 73, Jerry, K0CQ,
> All content copyright Dr. Gerald N. Johnson, electrical engineer
>
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