If the iso-coupler is bad, it may show up as a
change in the antenna current, or phase if it is
a directional. Check with the chief engineer
to see if something has changed.
Mike - AA8K
robd53154 wrote:
Hi we have a Ham reptr on a tower of AM radio station and its going
through an
I wonder if we might be going at this the wrong way.
We're spending $500 or $1,000 for a difficult-to-find
commercially made antenna that might be a compromise
for the frequency we're on.
What if we just make our own antenna? Is it that hard
to do?
There's a lot of 1/2 inch copper water pipe
The two nearest NOAA weather transmitters to here
are 50 miles away, in adjacent counties. The NOAA
site shows coverage to about half of our county to be,
0dBuV to 18dBuV: picking up a signal is possible but unreliable
A NOAA antenna at about 45 feet and a Radio Shack
receiver allows us to
For my Corvette, I took the cable off the battery
and put an ammeter in series. I read the current
after the Corvette went to sleep.
Used a big 36 volt transformer off an ink jet printer
with a diode, resistor, and LED in series, with
clip leads to the battery. I chose the resistor
for about 25
One more. Let me play Devil's advocate.
My mistake was buying terminals from a fellow ham
who bought in quantity. I also made a mistake
when I soldered some and used a crimp tool on
others. My crimp tool did not expand the barrel,
and the terminal still pushed freely into the housing.
My
I read about the Anderson Power Pole connectors
in QST and thought, What a great idea.
I started using them in our county's com van for
the portable 800 MHz repeater and ham gear, and
was I disappointed. Even the coiled cord for the
cigarette lighter plug pulled them apart. Now
I'm supposed to
Ah, thank you John
John J. Riddell wrote:
Mike, don't use the little red / black plugsthey don't work so well.
I have standardised on the 50 amp plugs...even in my car...they won't pull
apart.
I also use them on all my Son's farm machinery and he is very pleased with
them.
73
With new systems, there are usually horror stories.
Our county is essentially an ancient lake bottom and
is very flat. We will be adding a 5th and possibly
a 6th tower to support areas of poor coverage. I
consider this a flaw in the original system design
for this area. There have also been
And, if it will tune the 108 MHz to 118 MHz band,
you could receive a nearby VOR.
mwbese...@cox.net wrote:
Paul,
Actually, if you're near enough to the airport, you should be able to
hear the ATIS (Automatic Termininal Information System) broadcast. It
repeats airfield/weather
When I make a transmission on a repeater that
hasn't been used for a while, I state my intent
and call sign, and the repeater ids after I let
go of the PTT. I have made a legal transmission,
I gain the information that the repeater has
been dormant, AND I know that my transmission
held the
Thank you Kevin. I understand and appreciate
the problem you describe.
However, I am not trying to download at 2 Meg;
indeed the VOIP app is very happy on a 44 K
dial-up with the other Internet provider.
There seems to be adequate bandwidth, as I
can load my cable connection with additional
Ethercrash wrote:
My repeater group is considering building split-site 6m machine. As an
inter-site link, I was thinking of using some sort of VOIP arrangement
via the internet.
IMHO
Doug, KD8B, mentioned a critical point about
your VOIP not being interfered with.
Remember when
Hi Mark,
I was using Earthlink/Direc two-way satellite.
There is the inherent latency. If you are a gamer,
it might bother you. I didn't mind it.
My fade margin was on the low edge. At my
latitude, the angle is fairly low and there was
a tree at a distance that was partially obscuring.
I
A siren test every morning?
What a great idea.
I think I'll test my car horn and
shotgun every morning when I get up.
Nate Duehr wrote:
On Mar 7, 2009, at 12:23 PM, Daniel Fargo wrote:
Yes that is a good one I liked it also. You just never know what
neighbors will do.
You mean
Didn't Motorola have a rubber plug for that?
I recall it was quite a bit larger than the NMO hole plug.
Butch Kanvick wrote:
We had one law enforcement officer that checked his shotgun while it was
mounted in the shotgun lock, which was attached to the dash.
I think his ears are
Try: Conical Antenna or Bi-Conical Antenna
Gmail - Kevin, Natalia, Stacey Rochelle wrote:
Wow,
What an interesting artical. A lot of information on the early days of
TV in the US.
I was however interested in the Cone Dipole antenna they had display in
a couple of the
When I lived by the ocean in Southern California,
I would watch the corona glow on the power line
insulators evenings when it was damp.
Mike Dietrich wrote:
Hi To All Hope everybody had a good Christmas,
While the subject was brought up, I have been having a similar
experience here
I put two 120 volt fans in series in one cabinet.
Nice and quiet with a gentle air flow.
John J. Riddell wrote:
Kevin, another method of slowing down an AC fan is to put a capacitor
in series with the AC leads as a voltage dropping element.
* A local Ham played with this idea many
One Summer's day in Los Angeles I had a service
call on a microwave repeater (vacuum tube).
It was located in a warehouse, near the roof.
In the heat I lugged my stuff up the stairs.
As I set down the service monitor I leaned
my other arm against the cabinet. I jerked
it away because it was
Hmmm. There's always the free FoxIt reader instead of Adobe:
http://www.foxitsoftware.com/pdf/reader_2/down_reader.htm
It reads it fine and is lighter than Adobe.
wd8chl wrote:
Eric Lemmon wrote:
The file in question likely requires a later version of Adobe Reader than
what is
I've been running an MSR-2000 on a
Tram 1481 antenna on 146.72 with
a Sinclair Q2330E duplexer and it
works fine.
I just got a retired Motorola UHF
repeater (C64RCB-3105AT) with a
Sinclair Q-306D duplexer and was
wondering if I could use both
repeaters on the same antenna.
Would I be able to get
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