I have followed with interest the thread treating feed line to use to
connect repeater/duplexer/antenna, and I think I should replace the
cables that are now in use on my 2-m repeater. But now the repeater TX
and RX and a remote base use short cables to a feedthrough on the top of
the cabinet.
, John Transue [EMAIL PROTECTED]
wrote:
I would like to add a control receiver to a UHF (446 MHz) repeater.
If you can use a frequency for control that is within several channels
of your input, you can split the receive coax from your duplexer to
each receiver. Use a split channel for control
Sent: Thursday, May 08, 2008 3:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: antenna question
John Transue wrote:
I'm afraid there is no easy way to evaluate an antenna except from
signal reports. Even if you have a field strength meter, which I do
not
have
it and
slop several coats of Scotchkote on it. I normally slop on at least
three coats of the stuff, it's messy but I believe in it.
So far I have not found anything better in the Texas sun.
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John
Jim,
There have been two articles in QST on the use of stubs. I dont have
the index but I expect that you can find them. The first was probably 3
or 4 years ago.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Cicirello
So how do you know your antenna is not performing as it should? When an
antenna has a corrosion problem, can it still have good VSWR? I think it
can. A resistor can have good VSWR. So what should I do to find out
whether I need a new antenna?
I'd like to benefit from your experience. Thanks for
Thanks to all who responded to my request for help to control a cooling
fan. I now have several workable choices.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of TGundo 2003
Sent: Saturday, April 26, 2008 12:15 PM
is a circuit that I used on my old 220 repeater. This may be what
you need, simple and effective.
73, Joe, K1ike
Attachment sent direct to you.
John Transue wrote:
Thanks to all who responded to my request for help to control a
cooling fan. I now have several workable choices.
John Transue
/projects/project-index.html
73,
George, KA3HSW / WQGJ413
- Original Message -
From: John Transue mailto:[EMAIL PROTECTED]
To: Repeater-Builder@ mailto:Repeater-Builder@yahoogroups.com
yahoogroups.com
Sent: Wednesday, April 23, 2008 4:56 PM
Subject: [Repeater-Builder] Control
I have a fan cooling a remote base transceiver. The fan is on 24/7. I
would like to have the fan on only when the transceiver PTT is active
(active low). Alternatively, I would like to have the fan on only when
the RB is commanded to RX/TX mode. There must be many simple solutions
to this
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