[BULK] - [TowerTalk] Re: [Antennas] inline female coax connec tor?

[Keith Dutson]

Above 150 MHz I would think most folks are using "N" connectors.  The only
exception would be mobile 70 cm operation, and a barrel connection should
not be necessary.

Keith NM5G 

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Steve Katz
Sent: Wednesday, October 13, 2004 11:03 AM
To: 'Harvey&Bessie'; FireBrick
Cc: TowerTalk List; Antenna List
Subject: RE: [BULK] - [TowerTalk] Re: [Antennas] inline female coax connec
tor?

The "barrel connector" has a military designation, and it's PL-258.  The bad
rap these adapters have is based largely on crappy products built by
non-military suppliers, many of whom are offshore and selling pure junk into
the hobbyist marketplace.  A real, mil-spec Amphenol, Kings, Delta,
Trompeter et al. (U.S.-based mil-approved suppliers) PL-258 has no
measurable loss at all at 150 MHz.  I can resolve this better than a network
analyzer by using a signal generator (8640B) and digital RF microwattmeter
(BEC 42AD), where I can resolve about five-hundredths of a dB, consistently.
A "good" PL-258 at 150 MHz has loss down in this region.  However, I
disagree they're lossless at 400 MHz, and pretty much consistently measure
about 0.1 dB or so at 300 MHz with most PL-258s.  With that much loss, they
cannot handle high power at that frequency but they're still useful for RX
or lowered power service.  -WB2WIK/6

-----Original Message-----
From: Harvey&Bessie [mailto:w4tg at bellsouth.net]
Sent: Wednesday, October 13, 2004 10:17 AM
To: FireBrick
Cc: TowerTalk List; Antenna List
Subject: [BULK] - [TowerTalk] Re: [Antennas] inline female coax connector?


The popular name for the double female connector to connect 2 pl-259s is
"barrel connector."
Harvey/W4TG


_______________________________________________

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_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.

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