The HP 8568B as an example, uses an SMA coax switch to switch between the BNC 
and N
external "Input" connectors. Behind the front panel rigid coax is used to route 
to
the SMA coax switch.

--- Ken Javor <[email protected]> wrote:
> 
> I saw that but it makes no sense - there are coax switches in EMI receivers
> that take inputs from antennas making EMI measurements, looking at microvolt
> inputs.
> 
> ----------
> >From: [email protected]
> >To: [email protected]
> >Subject: RE: Coaxial Switches - use with spectrum analyzer and gear?
> >Date: Thu, May 23, 2002, 3:36 PM
> >
> 
> >
> > That information is from an application document found on the Dow Key web
> > site. I can't say that I fully understand it myself.
> >
> > Richard Woods
> > Sensormatic Electronics
> > Tyco International
> >
> >
> >
> > -----Original Message-----
> > From: Ken Javor [mailto:[email protected]]
> > Sent: Thursday, May 23, 2002 3:59 PM
> > To: [email protected]; [email protected]
> > Subject: Re: Coaxial Switches - use with spectrum analyzer and gear?
> >
> >
> > I don't understand the snipped statement below.  Isn't the loss just a
> > fraction of the power flowing through the switch?
> >
> > ----------
> >>From: [email protected]
> >>To: [email protected]
> >>Subject: RE: Coaxial Switches - use with spectrum analyzer and gear?
> >>Date: Thu, May 23, 2002, 12:22 PM
> >>
> >
> >> A minimum power of about -20dbm must be used to overcome the
> >> losses in the switch.
> >
> > -------------------------------------------
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=====
Best Regards
Hans Mellberg
Regulatory Compliance & EMC Design Services Consultant
By the Pacific Coast next to Silicon Valley,
Santa Cruz, CA, USA
office:831-454-9450, cell:408-507-9694, fax:831-454-0755

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