Re: [amsat-bb] N-connector loss

[Al Lawler <alawler@xxxxxxxxxxxxx>]

  I've been following this discussion with some 
interest, since my final configuration is going to
involve some pretty long feedline runs (and a few
n-connectors along the way.)

  I'm assuming the .15db/pair number is for a 
perfectly installed connector done by a professional.

  Does anybody have any feel for how different the
performance is for connectors installed by the 
average joe-ham with a soldering iron and 2 thumbs
standing on a ladder at night during mosquito season? :^)


If I install my own (assuming it's not shorted),
can I assume I can get an equivalent level of
performance?

  -al
  WB1BQE


Jerry Pixton wrote:
> 
> Pieter,
> 
> Thanks for the reference. I guess my number of 0.25 per pair on N
> connectors is not too bad. But it is certainly different than 0 dB loss
> ahead of the first all important low noise high gain preamp.
> 
> Jerry, W6IHG  just waiting for my antenna to arrive so I can get hands-on
> with the S-band downlink.
> 
> At 02:48 PM 5/20/01 -0400, Pieter Ibelings wrote:
> >Please look at page 2 of this file at the Amphenol web site:
> >
> >http://www.amphenolrf.com/pdf/type_n_spec.pdf
> >
> >They spec the loss as 0.15 dB loss at 10 GHz. I doubt that amphenol is going
> >to publish incorrect specs. Those specs are consistent with my measurements.
> >
> >Pieter Ibelings
> >
> >
> >----- Original Message -----
> >From: "Pieter Ibelings" <elpieter@hotmail.com>
> >To: "guy lemke" <guy@com-pair.net>; <amsat-bb@AMSAT.Org>
> >Sent: Sunday, May 20, 2001 14:29
> >Subject: Re: [amsat-bb] S-band receiving requirements
> >
> >
> > > Hi Guy,
> > >
> > > You can get as defensive as you want, but maybe you should not be buying
> > > those crummy connectors. I deal with N connectors every day and I don't
> >rely
> > > on what others say. I do all the measurements myself. I have the latest
> > > model HP8753ES 3 GHz network analyzer on my bench and I have never seen
> > > losses that high. If you are getting 0.5 dB, your connectors can be rated
> >as
> > > "radioshack" quality.
> > >
> > > Pieter Ibelings
> > >  N4IP
> 
> ------------------------------------------
> Dr. Jerry R. Pixton, PIXOS Designs LLC
> http://www.pixos.com/designs/
> jpixton@shentel.net
> ------------------------------------------
> 
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