[Boatanchors] question on the SB-610

[Eddy Swynar]

Hi Eugene,

Bob is right-on: place the SB-610 right between the amplifier & tuner...

Changes in SWR here on mine WILL make the trace outline change in size, too,
BTW...by keeping the SWR relatively constant (by virtue of its placement
between the amp, and BEFORE the tuner), you will be effectively minimizing
any such negative effect upon the "repeatability" of the trace pattern
size...

~73~ Eddy VE3CUI - VE3XZ


**********************************************

----- Original Message -----
From: "Bob Macklin" <macklinbob at msn.com>
To: <eugene at hertzmail.com>; <heathkit at mailman.qth.net>; "BOATANCHORS"
<boatanchors at mailman.qth.net>
Sent: Sunday, January 18, 2009 9:37 PM
Subject: Re: [Boatanchors] question on the SB-610


> You want the SB-610 between the amp and the tuner!
>
> Bob Macklin
> K5MYJ
> Kent (Seattle), Wa,
> "Real Radios Glow in the Dark"
>
> ----- Original Message -----
> From: <eugene at hertzmail.com>
> To: <heathkit at mailman.qth.net>; "BOATANCHORS"
<boatanchors at mailman.qth.net>
> Sent: Sunday, January 18, 2009 6:19 PM
> Subject: [Boatanchors] question on the SB-610
>
>
> > Hi there.
> >
> > I am rearranging my shack (seems I spend more time rearranging than
> > operating!).  I would like to use my SB-610 to monitor my signal.
> >
> > To simplify, I have a 1KW amp, then an antenna coupler and then the
> > antenna. Would I be better off placing the SB-610 before the antenna
> > coupler so that it sees close to 50 ohms on both its input and output?
> >
> > Or would I be better off placing it after the antenna coupler so that it
> > can display my signal, which would reflect whatever the true SWR is
> > going out to the antenna?
> >
> > Put another way, my signal will be going out into an antenna that will
> > not really have a perfect match. In fact, it might have SWR of 2:1 or
> > 3:1 or worse - even though my antenna coupler is making my amp see 1:1.
> >
> > I am wondering if this real SWR might have an effect on the quality of
> > my transmitted signal? If so, perhaps I should use the SB-610 after the
> > coupler to "see" what everyone else will be hearing?
> >
> > Or does the 610 just give a hoot about SWR?
> >
> > Thanks for the bandwidth!
> > Eugene
> >
> >
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