Sorry, I don't have an Andrews catalog other than what can be found
online.
That is a bit of information that is not often mentioned, the insertion
loss for various connectors, etc...
Wayne WA2YNE
On Mon, 21 Apr 2008 14:31:08 -0500, Ralph Messer [EMAIL PROTECTED]
wrote:
Wayne
If
For the record, the Andrews web site seems to still be down. Means all
info I fiond is from other web sites, vendors, etc...
Also, it seems that Andrews has discontinued a couple of types of Heliax,
including what I have. One person came up with them only making it with
aluminum outer
you wont notice the loss...
My club just Put up a New antenna and New 7/8 hardline. the hardline was about
200 feet. the Tower Guy dropped a knife. 1 in a million shot and cut the
hardline at the base of the Tower.
I spliced the cable using 2- 7/8 EIA flanged Connectors because that what I
Okay, at this point, I have the following:
100 feet of LD5-50A
1 Female 'N' connector for same
3 male 'N' connectors for same, plus an additional male 'N' from another
source. All for the LDF5050A cable
At antenna, a 3 or 4 foot 1/2 Heliax jumper, as the connectors for the
7/8 Heliax
Okay, so I have a couple extra motorola Mitrek base consolette bases in
the shed, dying to be used. So I was board, checking stuff out, and I
cant seem to figure out if there would be anything that would tell me
if I could place a newer, Maratrac in this Mitrek base. Reminder this
is the old
Fred,
Are you looking for a circuit that will reset the controller if PTT is active
for more than a continuous 10 minutes??
If so I have one I designed about 10 years ago. It is used to reset the
controller from a continuous 10 or so minute PTT. It removes the power from
the controller for
Somewhere around 8-9 p.m. December 15, The club I belong to (Mountain
ARC)lost our tower at 2976ft. The area of the site received a blast of
freezing rain, followed by several bursts of very high wind. This
created the dreaded twisting effect that has brought so many others
before it as well.
We
Every body stinks and no one notices...that is the real Hams do. It is the
equipment I like to smell.
73, ron, n9ee/r
From: Kris Kirby [EMAIL PROTECTED]
Date: 2008/04/21 Mon PM 05:39:31 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Dayton check list -2008 Time for
Larry,
I thought the same thing except I would go for more 240 V...a good old TV
transformer with about 800V would do. Also if you stand inside the building
looking for smoke it would lead to the user of the feedline. Bet they would
not do it again.
Another approach is a high voltage, not
At 06:22 AM 4/22/2008, you wrote:
Larry,
I thought the same thing except I would go for more 240 V...a good
old TV transformer with about 800V would do. Also if you stand
inside the building looking for smoke it would lead to the user of
the feedline. Bet they would not do it again.
This was
Bruce,
The problem here is IDing with out use of the repeater.
One can make broadcast for certain items such as weather info and some
general interest announcements.
The time thing is broadcasting and I bet deemed illegal technically by FCC
rules.
However, giving info along with the ID is
On a quick Note Ron
If the repeater was for emergency services( Police,fire,ems or during a storm)
,and was a Must Get on the air at any cost that would save lives. I would
allow that stupid splice Until I was able to get the correct connectors to make
the Correct splice.
and that would
It's already a big problem with AM broadcast stations
losing their ground system. Buried uninsulated copper
wire. Find one exposed piece and start pulling it up.
I wonder if amateur equipment insurance covers such
vandalism?
Bob M.
==
--- Terry [EMAIL PROTECTED] wrote:
Somewhere around 8-9
Neal,
Your point is a good one. We don't know the whole story and many of our
comments are for fun. There may be a real good reason why this was done.
I am sure the owner is dealing with it. It might have been done by the tower
owner and one might be there free at his blessing. One could
Personally I wonder how much exception the local Magistrate would take if the
thief happened to start leaking a little being mistaken for some kinda bird n
all :)
To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Tue, 22 Apr 2008 06:02:52 -0700
Subject: Re: [Repeater-Builder]
YES... Radio will not power up without it (ignition sense wire).
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com On Behalf Of mikewm9v
spectra radio dead from ebay
want to fix this radio no display
need schematics
need to know if radio will power up
Hello,
Like he said, it depends on several things. You have to consider the
Antennas, power, frequency, split and quality of receiver and transmitter.
On the receiver you have to look at selectivity and on the transmitter you
have to look at transmit noise.
I have 80 feet between my two
You are correct Larry, the act itself *IS* criminal. But in order to be able
to successfully prosecute the perpetrator, one needs to be able to show: 1) WHO
did it, and 2) that there was INTENT. Without those two, no individual will
ever be prosecuted.
Tell ya what - you take the photo
Easy to explain, Lead Poisoning.
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Barry C'
Sent: Tuesday, April 22, 2008 8:13 AM
To: repeater-builder@yahoogroups.com
Subject: RE: [Repeater-Builder] More on Copper theft
Personally I wonder how much
It's been awhile since anyone has heard from me, still shaking off the cinders
from all the Flames sent my way!
While those who Flamed are right, it was a stupid answer, I have noticed that
many (Most) times never get the original message of the thread.
The 2 week old post proves it! There
At 4/21/2008 22:10, you wrote:
The 555 will do the job just fine... you need only configure it
properly, which for me ended up being the same circuit Hamtronics
used in their early COR-2 Board. Simply copy that circuit less
the hang timer portion and you're set.
I wish I could claim credit for
What about begining the ID with The following is a QST?
On 4/22/08, Ron Wright [EMAIL PROTECTED] wrote:
Bruce,
The problem here is IDing with out use of the repeater.
One can make broadcast for certain items such as weather info and some
general interest announcements.
The time thing
Most bullets these days are made of copper.
On 4/22/08, Paul Finch [EMAIL PROTECTED] wrote:
Easy to explain, Lead Poisoning.
--
*From:* Repeater-Builder@yahoogroups.com [mailto:
[EMAIL PROTECTED] *On Behalf Of *Barry C'
*Sent:* Tuesday, April 22, 2008 8:13 AM
At 4/23/2008 00:45, you wrote:
Okay, at this point, I have the following:
100 feet of LD5-50A
1 Female 'N' connector for same
3 male 'N' connectors for same, plus an additional male 'N' from another
source. All for the LDF5050A cable
At antenna, a 3 or 4 foot 1/2 Heliax jumper, as
p.s: I've run across several other technology-groups who like to post
'Wall of Shame' pix - got a few myself. Any interest out there?
I have that on my site:
http://www.tabajara-labs.com.br/eletronica/gambiarras/
Send me the photos and I'll put there :o)
YEP...
BTW RON I have an Older 1000 controller . that is acting Funny. If I send it
to ya can you check it out maybe it needs to be updated..
Funny meaning No mater what I try It wont ID on inital keyup.. and looses
Memory I have to reporogram it...
Let me know...
Yep I agree with
They have already stolen coax off working systems.
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Terry
Sent: Tuesday, April 22, 2008 6:17 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] More on Copper theft
Somewhere
I think they have a copper jacket over lead.
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of DCFluX
Sent: Tuesday, April 22, 2008 10:32 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] More on Copper theft
Most bullets
-Original Message-
From: Bruce Bagwell [EMAIL PROTECTED]
Sent: Apr 22, 2008 10:08 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Yahoo burp?
[snip]
Just brushing off the cinders! Sorry about the dumb post. Maybe that is a
result of Spam Filters,
Neal,
Sure send me the control and I'll take a look.
73, ron, n9ee/r
From: neal Newman [EMAIL PROTECTED]
Date: 2008/04/22 Tue AM 10:53:07 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: Re: Re: [Repeater-Builder] Re: Bad adapter
YEP...
BTW RON I have an Older 1000
Re: Dayton That Pleasant Flea Market Smell
Oh we notice all right... people wise it can get pretty bad.
And the equipment odor is not exempt... nothing like the
smell from a vintage tube rig taken from a heavy smokers
shack.
There's also the tactile feel of nicotine goo...
cheers,
s.
Re: Carrier Control Timer (use the COR-2 circuit)
The 555 timer is a lot like the 723 (voltage reg) chip in regards
to a very large variety of available circuit options and layouts
that simply must obey certain rules detailed in the Mfgrs data
sheets. Onward...
The 555 is one of the most
Don't forget the old military stuff with the strong vinegar-like smell of the
anti-corrosive treatment, whatever it was (probably toxic/carcinogenic...) I
used to have an old (WW-II) BC-639 aircraft direction finding receiver,
complete with power supply, control head, headset, handset, manuals
Mine was on the air - but not active at the time the ax was applied to the hard
line. You are my coordinator, but I never did let you know it was down -
sorry. But back up now, with a new connector and jumper.
73 - Jim W5ZIT (N5SN) 443.9
Paul Finch [EMAIL PROTECTED] wrote:
-Original Message-
From: DCFluX [EMAIL PROTECTED]
Sent: Apr 22, 2008 10:31 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] More on Copper theft
Most bullets these days are made of copper.
Perfect!
He wants copper, we'll give him copper.. although
Use of the antenna could be considered theft of services IMO.
Theft of services covers a number of things.
Not sure what the 240 volts would do, maybe burn out loops in the
duplexers being used, if it managed that before kicking the circuit
breaker. Possible melt some of that teeny coax
Back in the '60s when we were still using mechanical teleprinters, I operated
RTTY on the same bands a notable local DXer operated. He was really upset if
any clicks and pops were present to upset his DX band. Using a polar relay to
key the AFSK oscillator frequency really screwed up the
Alodyne (or was it alodine) was what we used to passivate aluminum for the
military. Circuit boards used MFP (moisture and fungus proofing) which was
some kind of varnish or lacquer.
73 - Jim W5ZIT
George Henry [EMAIL PROTECTED] wrote: Don't
forget the old
I Don't think this Copper Thieves are actually Targeting Repeater Sites
Etc , Some Sites are off the beaten path and in Place not readily seen
by some , It is just bad People trying to make some money for whatever
.
Example, Here in N/W Indiana home Construction sites get hit all the
At 07:00 PM 04/21/08, you wrote:
We are looking at setting up a basic (I know there is no such thing)
repeater. What I need to know, if you do not have a duplexer to run
your antenna through, but have two antennas, with one on the TX and
one on the RX how far apart do they have to be to be able
At 03:35 AM 04/22/08, you wrote:
p.s: I've run across several other technology-groups who like to post
'Wall of Shame' pix - got a few myself. Any interest out there?
I have that on my site:
http://www.tabajara-labs.com.br/eletronica/gambiarras/
Send me the photos and I'll
I also ran RTTY and had a DXer a few houses away (actually
about 750-900 feet...), only mine was 2m FM and he was
2m SSB.
My audio oscillator was a one-transistor oscillator with an
88mh toroid in the collector, and a feedback coil I added
that fed back to the base. A second added winding was
I Don't think this Copper Thieves are actually Targeting
Repeater Sites Etc , Some Sites are off the beaten path
and in Place not readily seen by some , It is just bad
People trying to make some money for whatever
Most of the time it's meth...
Out here on the West/left Coast we're
A friend of mine has a Kenwood TM-331 that he would like to interface to
his 7330 controller. Turns out there is no COS output on the
radio. Apparently the signal does exist inside it but I'd have to run a
haywire out the radio to get at it. The RBI-1 apparently handles the COS
by using the
http://radioinsight.com/boards/index.php?t=msg
http://radioinsight.com/boards/index.php?t=msggoto=58094rid=0S=67a57780f
5f76038ba7ec84fc7e17077#msg_58094
goto=58094rid=0S=67a57780f5f76038ba7ec84fc7e17077#msg_58094
From what I understand, they took an ax to the feedline and collected up the
Usually, when the impedance/VSWR changes a large
amount, or the axe shorts the center to the outer
conductors, the transmitter will fault and shut down.
It may try to recycle a couple of times, but that's
about it. They usually do a good job protecting
themselves.
I was working on some station
I hope that the initial shutdown time (and any subsequent attempts to
restart) sent a hell of a jolt up the ax!
I used to work and airborne radar set that had overload protection on the
magnetron. it took 7 successive misfires before it would shut down fully.
One night while troubleshooting an
Does anyone have any tips for using an Arcom 810 on an MSR2000 VHF
repeater? One of the local clubs up here has acquired these 2 pieces of
equipment and are looking to get this repeater up and running to replace
their existing machine.
Any help would be appreciated.
Eric.
Joe,
If you look at the PDF from the link that was provided you'll find that it
IS the spec sheet for the 220-2 which is the 142-150MHz version of the Super
Stationmaster antenna. The 25-299.9 frequency reference you're seeing is
the category of antennas that Celwave is putting this antenna
At 04:08 PM 4/22/2008, Eric M. wrote:
Does anyone have any tips for using an Arcom 810 on an MSR2000 VHF
repeater? One of the local clubs up here has acquired these 2 pieces of
equipment and are looking to get this repeater up and running to replace
their existing machine.
Have a look at the
Well that Picture sure put Things in Perspective Only one Comment
Unbelievable I guess the Old Saying a Picture is worth a thousand words
is True in this case
Don KA9QJG
--- In Repeater-Builder@yahoogroups.com, Alexandre Souza
[EMAIL PROTECTED] wrote:
p.s: I've run across several other technology-groups who like to post
'Wall of Shame' pix - got a few myself. Any interest out there?
I have that on my site:
There has got to be a way to catch and make an example of these thieves. The
buyers of copper must be trained to be selective about who they buy this stuff
from and require good ID and keep records of who they buy from and be aware
that the stuff might be stolen. Regulations as stiff as
Wayne wrote:
I also have a bulkhead mount Polyphaser which I could, for the time
being, install at the repeater itself and use a jumper there that is
Others may disagree, but the Polyphaser is only perfect if tied to a
properly planned single-point or halo/ring grounding system.
It'll
At 06:49 PM 2008-04-22 -0500, Jim Miller WB5OXQ in Waco wrote:
The buyers of copper must be trained to be selective about who they buy
this stuff from and require good ID and keep records of who they buy from
and be aware that the stuff might be stolen.
That's the big problem. No matter how
At my last job we were having copper ground buss bars stolen. They
would hit a cellsite and take them all at ground level. This could add
up to 5 or 10 buss bars if the site had multiple carriers on it. The
fix has been to replace the buss bars with tinned copper buss bars. It
will be a
Alexandre Souza wrote:
p.s: I've run across several other technology-groups who like to post
'Wall of Shame' pix - got a few myself. Any interest out there?
I have that on my site:
http://www.tabajara-labs.com.br/eletronica/gambiarras/
Send me the photos and I'll put there
. Many
thieves are only interested in $10-20 worth of copper. That's all it
takes to buy a dose of drugs and get high.
73, Joe, K1ike
Well I Don't think is just Drugs and stuff like that anymore ,Now We
have to think what $ 5.00 Will buy a Gal of Gas , a Pack of Cigs ,a
Gallon of Milk and
On Tue, 22 Apr 2008, Jim Miller WB5OXQ in Waco wrote:
There has got to be a way to catch and make an example of these
thieves. The buyers of copper must be trained to be selective about
who they buy this stuff from and require good ID and keep records of
who they buy from and be aware that
Well, how about feeding 220 (and I'm not talking the MHz variety)
through a piece of Heliax to feed something on the tower like a light?
(or even as an unterminated open circuit)
That way, when the cut through it with the rest, SURPRISE! The guy who
was stealing the cable will be the body
At 04:15 PM 04/22/08, you wrote:
At 04:08 PM 4/22/2008, Eric M. wrote:
Does anyone have any tips for using an Arcom 810 on an MSR2000 VHF
repeater? One of the local clubs up here has acquired these 2 pieces of
equipment and are looking to get this repeater up and running to replace
their
Prevention is better than a cure ( which you keep secrete)
Geovision siftware and some old cctv cams is cheap connected to some sort of
high intensity light source tends to slow them down ...
To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Tue, 22 Apr 2008 23:23:51 -0400
My way is prevention. Once they hit that Heliax, they don't be hitting
any more tower sites - preventing the next guy and likely saving some of
your lines.
Your way is just passing the problem on to the next site. (not meant
as criticism per se)
By weeding out all the scum, the problem is
But, they don't know the value of that, and likely don't have any
outlets to get money from it. But, they DO know the value of copper, and
there are plenty of scrap yards..
BUT, you would think that the first few cuts would have deterred them
since the majority of the metal is NOT copper - as
Once we tried smearing the feedline with a mixture of cosmoline, carbon
black and gentian violet. But alas came the time when WE had to work on it !
MCH wrote:
Well, how about feeding 220 (and I'm not talking the MHz variety)
through a piece of Heliax to feed something on the tower like a
They obviously did not know the value of the connector and when you consider
the 1/2 Heliax has an thin copper coated aluminum center conductor they
really did not get much. It also looks like the 7/7 Heliax is also the
solid aluminum type but the resolution is fairly poor when I blow it up to
If you are using correctly installed stock micor pl decoder board and you are
taking your audio from the audio squelch board pin 7 (preamp output) the ctcss
will be removed and the audio de-emphasized at this point. You would have to
mod the controller for de-emphasized audio.
If you want to
At 4/22/2008 11:25, you wrote:
Re: Carrier Control Timer (use the COR-2 circuit)
The 555 timer is a lot like the 723 (voltage reg) chip in regards
to a very large variety of available circuit options and layouts
that simply must obey certain rules detailed in the Mfgrs data
sheets. Onward...
Premeditated manslaugther .. MM nah thank but no thanks
To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Wed, 23 Apr 2008 00:05:19 -0400
Subject: Re: [Repeater-Builder] More on Copper theft
My way is prevention. Once they hit that Heliax,
69 matches
Mail list logo