Re: [Repeater-Builder] which kind of cable coax should I use?

Mon, 14 Feb 2005 06:18:33 -0800

Hello All,
You will want to use a hard-line coax cable.
I would say 1/2" will server you well at 50'.
Yes 7/8" would be better but the price
of the hard-line and the price of the connectors
would be much higher.
One thing you did not mention was jumpers.
This is also very important on a repeater.
You will want to run things like Andrews Supper
flex between your transmitter and circulator
or circulator and Amp if you use one and your
amp and duplexer. On the receiver side between
your receiver and pre-amp if used and your pre-
amp and duplexer. If at all possible I would try
to use type "N" connectors every where you can
to keep the loss down as much as you can and every
where you can. No one has said this yet. But try
to use a good grade of commercial antenna. If
room is a problem a DB-404 need more gain a DB-408
will work fine. If money is no abject the DB-420
is a fine antenna. All can be picked up from the
same suppler you pick to buy your Hard-Line
from.  Remember that the repeater is the easy
part of your system. Pay a lot of attention to
your "LINES AND ANTENNAS"
If your repeater cannot hear or be heard it
is a very expensive and worthless pace of
equipment.  You have found the correct group
to help you on your project. There is a great
wealth of good people here who can help.
Dean Westbrook, EE,PE.
 






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