[Antennas] inline female coax connector?

Thu Oct 14 11:19:24 EDT 2004

If the losss were that high, running a KW would mean that 684 watts
would be dissipated by the barrel and connectors. If that were the
case, I suspect you'd have much bigger problems than loss of received
signal.
I recall seeing some posts about measurements of multiple connections 
and the numbers were on the order of 0.1 dB or less per connector at HF. 
Since the center conductor of a PL-259 is larger than that of a UG-21 
(type N), the losses are probably less (until you reach frequencies 
where the reactances of the mismatched UHF connector become 
appreciable).
73,
Bob N7XY
On Wed, Oct 13, 2004 at 01:09:16PM -0400, Jack Painter wrote:
> Hi Don, that's a lower number than I ever saw listed for any kind of pl-259
> type connector. N-connectors have such low loss, not PL-259's.
>> Consider that using barrel connectors instead of making a proper length coax
> (except for special circumstances, there should be no reason for such a
> permanent connection), it actually adds FOUR pl-259 type connections. Two on
> the coax ends that would not have to be there, and each side of the barrel
> connector. I think there is about -5db (or greater) loss from such a
> connection, and that is unacceptable for any kind of HF (dx) or VHF/UHF
> reception.
>> 73,
> Jack
>> > Actually ... if properly installed, the insertion loss for the 'barrel
> > connector' is less than .5 db ... that has been addressed here before.
> > Don
> > N8DE
> >
> > Jack Painter wrote:
> > >>Reading the info on the various coax types.
> > >>Keep seeing the references to barrel connectors.
> > >>
> > >>Is there a female coax connector?
> > >>I'm only familiar with chassis mount female connectors.
> > >>I'm asking about a female that would mate to a pl259.
> > >>
> > >>Bill H. in Chicagoland
> > >
> > >
> > > Bill, the barrel connectors are double-ended SO-239 females, intended
> for
> > > use as a union between two PL-259 male coax lines. Use them for
> temporary or
> > > emergency patchwork, because the insertion loss in these connectors is
> high.
> > >
> > > Jack
> > > Virginia Beach
> > >
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> >
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-- 
Bob Nielsen, N7XY n7xy (at) n7xy.net
Bainbridge Island, WA http://www.n7xy.net