On Sun, 29 Jan 2006, Glenn Little WB4UIV wrote:
Why would you mount the second antenna upside down???
Assumably the owner of the tower wants as few non-earning antennas on the
tower as possible. And the ham owning the repeater doesn't want to buy
another piece of feedline.
Is this to keep
I am new to your Yahoo groups, but I have been associated with our
repeater System, since 1985.
It is my turn to lead the technical department of maintaining our 12
repeaters.
One of our repeaters has been using a Comet Dual-band antenna, since at
least 1968. We have found times with poor
On Sat, 28 Jan 2006, Jim Connell, KH6JKG wrote:
I have a preference for Station Master antennas. Although, most of our
sites are simulacasting on VHF UHF. So, dual-band antennas where also
used over the years.
You may be able to hack around this if you can get permission to install
another
Why would you mount the second antenna upside down???
Is this to keep the coax to the two antennas close together and gain the
loss through the coax to the upside down antenna??
Is it to ensure early failure of the upside down antenna because of
moisture buildup??
Is it to cause the signal to
DB makes the DB-314, essentially a 8 UHF dipoles (6.6db gain) and
4 high band dipoles (3db gain) on the same mast, with separate feedlines.
Add a TX-RX diplexer (the model made for tower-top use) and you've got a
commercial-spec dual band antenna. Install it properly and you can ignore
it for 20
On the sites with unused parts of these dual-band antennas, should the
unused section of the antenna be terminated? With a short or 50 ohm
termination?
I would ALWAYS terminate with a 50 Ohm load, even it if is just a resister.
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At 1/29/2006 13:56, you wrote:
On the sites with unused parts of these dual-band antennas, should the
unused section of the antenna be terminated? With a short or 50 ohm
termination?
I would ALWAYS terminate with a 50 Ohm load, even it if is just a resister.
Why? An unterminated
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