¿ªÔÆÌåÓý

  1. Repeater-Builder
  2. Messages
Expanded Topics Messages Polls
Date
Re: New at building a repeater

Mike Hamann
 

Norm,
Here are some internet sites regarding repeater mods to
Motorola and GE radios:





and some good controllers at:


73,
Mike, WB6CSH




From: Norman Dyck <n.dyck@...>

Hi
I am looking in to building a repeater. I have a Motorola
Mitrek and
have seen some articles on using a single radio to build a
repeater but
the instructions are not very clear. The Mitrek that I have
is all setup
and working, I am now using it as a voice radio to talk to
only one
repeater. It is just the setting up the radio as a repeater
and the
connections for the controller and things like that. I am
also looking
for a controller and it has to be inexpensive. I don't need
phone patch,
or voice ID, but will need to have at least two radio ports
and will
need the manuals also. Another thing that I am looking for
are duplexers
but for now will not need them.

If anyone can help let me know and where to get more
information.

Thanks
Norm
VE5VY
Re: Crackle

Dave Maciorowski
 

Hi Bob,

Our club could use some ideas on combatting a bad crackle in our 2M
repeater.
The site is a mountain top where there is almost always some wind. The
system
has behaved very well for years, but for some weeks there has been a bad
crackle on user transmissions. The crackle is worse during high winds, and
is
only present when the receiver hears a signal. That is, the carrier is
perfectly clean when only the transmitter is up, such as during the dropout
delay or IDs. This leads me to think it is not a bad antenna connection. The
site is very busy, with the continuous addition and removal of commercial
and
public service RF gear. A high-power TX was recently added.

Note that we actually have two identical systems on the same frequency, with
one being a hot standby. The repeaters are on separate towers a couple of
hundred feet apart. The crackle is the same on each repeater! It is bad
enought to cover up many user transmissions.
Sounds like a general problem at the site.

We had this problem at our Conifer Mtn site several years ago. The guys
thought I was crazy when I planned the fix...

First, test for the problem. Inject a weak signal into the repeater so
that it just quiets the repeater. Climb the tower. Take a screwdriver and
a handheld to listen to. Rub the blade of the screwdriver on the metal
parts of the tower. The part of the tower radiating the noise is the one
that causes the most static in the repeater.

At our site, it was the guy wires. The galvanized thimbles were acting as
diodes where they went thru the torque arms of the tower. I took up short
pieces of galvanized guy wire and some galvanized guy wire clamps. I
clamped these short pieces from the guy wires to the horizontal braces on
the tower (Rohn 25). By electrically bypassing the the thimbles, the
static disappeared.

BTW, we also did the same thing at the bottom of the guy wires at the
anchors. Clamp guy wire from each main guy wire to the ground rod
installed at the guy point. (You DO have ground rods there, don't you?)

I made this change many years ago and have had NO problems since then.

73,

Dave



-----
Dave Maciorowski, WA1JHK
Colorado Repeater Association, Inc.
¿ªÔÆÌåÓý Colorado with Voice and Data, 6-Meters to 1.2 Gig

Internet: wa1jhk@...
CRA:

Re: TS-64

Brent DeSalvo KF4TNP
 

Mike Yes i can it works ok takes about 1 sec delay on the ptt to ket the repeater
but yes it works ok and the squelch crash at the end is nuts

Mike Hamann wrote:

From: "Mike Hamann" <wb6csh@...>

Brent,
Your post is a little hard to follow, but can you get the
ts-64 operating properly *without* the reverse burst
feature?? I would try it without and see how you like it
(crash!).
73,
Mike, WB6CSH

From: Brent DeSalvo KF4TNP <Bug1@...>

i have installed the TS-64 tone board into my ge master II
base and it
will now incode an deccode but it says something about the
reverse burst
and that it will eliminate the squelch tail by dropping the
pl first
(when the radio is in enc/dec)
but have no such luck and when connected correct it goes
inline with the
ptt line and it works great that way that is it keys but
than no audio
or my curtious beep passes at all .. any info on this as to
what i may
have done wrong
------------------------------------------------------------------------
You can now easily share photos and documents with your fellow list members

Check out our homepage for details on how to use our new shared files feature!
------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"

--
Brent DeSalvo (KF4TNP)

ICQ UIN# : 17430698
Mailto:bug1@...
Re: TS-64

Mike Hamann
 

Brent,
Your post is a little hard to follow, but can you get the
ts-64 operating properly *without* the reverse burst
feature?? I would try it without and see how you like it
(crash!).
73,
Mike, WB6CSH



From: Brent DeSalvo KF4TNP <Bug1@...>

i have installed the TS-64 tone board into my ge master II
base and it
will now incode an deccode but it says something about the
reverse burst
and that it will eliminate the squelch tail by dropping the
pl first
(when the radio is in enc/dec)
but have no such luck and when connected correct it goes
inline with the
ptt line and it works great that way that is it keys but
than no audio
or my curtious beep passes at all .. any info on this as to
what i may
have done wrong
New at building a repeater

Norman Dyck <[email protected]
 

Hi
I am looking in to building a repeater. I have a Motorola Mitrek and
have seen some articles on using a single radio to build a repeater but
the instructions are not very clear. The Mitrek that I have is all setup
and working, I am now using it as a voice radio to talk to only one
repeater. It is just the setting up the radio as a repeater and the
connections for the controller and things like that. I am also looking
for a controller and it has to be inexpensive. I don't need phone patch,
or voice ID, but will need to have at least two radio ports and will
need the manuals also. Another thing that I am looking for are duplexers
but for now will not need them.

If anyone can help let me know and where to get more information.

Thanks
Norm
VE5VY
Re: Crackle

Danny Turner
 

I had these same symptoms happen when a Station Master antenna mounted on
top of a 100 foot tower on a mountain ridge developed a cracked connection
in the base of the antenna. Replaced it and put a new one up and it lasted a
few years before it did the same thing. These are very good antennas but do
not like the high stress loads they are subjected too mounted on tower tops
with high wind loads. We would not hear the static until a signal was strong
enough to break the squelch. With just the ID running or squelch tale it
would be perfectly quite. I disassembled the last antenna and resolderd the
connection heavily and has worked fine for the last 8 years or so.
It to would only act up during windy conditions or someone was climbing the
tower. If all the hardware on the tower looks good then take a serious look
at the antenna and maybe get someone to go up on the tower and give it a
good shake while listening to a incoming signal, that's how I found this
one.
Good luck,
Danny

-----Original Message-----
From: SCOMIND@... <SCOMIND@...>
To: Repeater-builder@... <Repeater-builder@...>
Date: Monday, April 19, 1999 12:51 PM
Subject: [Repeater-builder] Crackle


From: SCOMIND@...

Hi Guys,

Our club could use some ideas on combatting a bad crackle in our 2M
repeater.
The site is a mountain top where there is almost always some wind. The
system
has behaved very well for years, but for some weeks there has been a bad
crackle on user transmissions. The crackle is worse during high winds, and
is
only present when the receiver hears a signal. That is, the carrier is
perfectly clean when only the transmitter is up, such as during the dropout
delay or IDs. This leads me to think it is not a bad antenna connection.
The
site is very busy, with the continuous addition and removal of commercial
and
public service RF gear. A high-power TX was recently added.

Note that we actually have two identical systems on the same frequency,
with
one being a hot standby. The repeaters are on separate towers a couple of
hundred feet apart. The crackle is the same on each repeater! It is bad
enought to cover up many user transmissions.

Thanks for any suggestions.

73,
Bob, WA9FBO

------------------------------------------------------------------------
Are you hogging all the fun?

Friends tell friends about ONElist!
------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"
Re: Crackle

The Lacko's
 

Is the antenna a fiberglass station master type???? I have seen desense
occur in high winds because of a bad joint in the antenna.

Just a thought

At 04/19/1999 12:18 PM, you wrote:
From: w7ntf@...


Sounds like a classic case of rectification. Look for corroded metal to metal
contacts, both on the tower/antenna system, as well as down low, anywhere
within the near-field of the repeater..... It will drive you nuts, as I have
been through the same ordeal. It ended up being some scrap metal on the
ground that had touched some other metal, in one case... Another situation
came from my 2m duplexors sitting on a metal painted floor and making
intermittent contact... I put a board under the duplexors and that completely
cleared things up...

In a worst case scenario, II remember a western MA repeater owner's story
some years back where he would have radio WLS or some other
megawatt-clear-channel broadcaster come through his repeater at night, in
addition to the scratchies, due to a rectification problem on the site, due
to a metal to metal contact corrosion. That can be a real problem, and no two
situations are alike. It is going to be a chore finding it, if you ever do...
Good luck... 73, de Gary, W7NTF


------------------------------------------------------------------------
Did you know that we add over 1,000 new e-mail communities every day?

Explore a new hobby, discover a new friend, laugh at a new joke!
------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"
Thanks for the GE Help

Kim Wells K3OCM
 

Just wanted to say thanks to all that replied to my most recent post
concerning GE information. The response was over whelming!!!

73
Kim Wells, K3OCM
Ocean City, Maryland, USA. FM28
Re: Newbie questions

[email protected]
 

The programmable cwider I use is the racom model 700 you can get them at
1-800-722-6664.


Slap this on a Master II base/repeater or Micor, With all "STOCK" cards and
you have the best repeater you can get.

Down with CB repeater controllers!

Kevin
Fw: [ACC] ACC DVR Info

Chris KF4PUW
 

Please reply directly to Paul, not me .. ( I know he posted this on other
lists, but not this one)

-Chris

----- Original Message -----
From: Paul E. Knupke, Jr. <pk@...>
To: <acc@...>
Sent: Monday, April 19, 1999 9:30 AM
Subject: [ACC] ACC DVR Info


From: "Paul E. Knupke, Jr." <pk@...>

My club has had an ACC DVR for over a decade and we're doing some
maintenance on our 2m repeater and our tech guys want to adjust some
levels
on the DVR but we have no documentation on the DVR (ie what pots do what,
what the dip switches do.)

If anyone has documentation on the ACC DVR let me know please. We'd like
to
get our repeater up at its new site as quick as possible and getting the
documentation for the DVR will be much appriciated.

Drop me an email
pk@...

Thanks and 73,
Paul
KR4YL
Largo, FL




------------------------------------------------------------------------
You can now easily share photos and documents with your fellow list
members

Check out our homepage for details on how to use our new shared files
feature!
------------------------------------------------------------------------
Be sure to tell ANY ACC owner about this list. Open to all ACC
owners.operators and
UNedited!!! Those who get abusive will be handled off the remailer. Please
try to keep
on topic (some minor straying is allowed :)
Re: Crackle

Ray Vaughan
 

At 01:18 PM 4/19/99 EDT, you wrote:
From: w7ntf@...

Sounds like a classic case of rectification. Look for corroded metal to
metal
contacts, both on the tower/antenna system, as well as down low, anywhere
within the near-field of the repeater..... It will drive you nuts, as I have
been through the same ordeal. It ended up being some scrap metal on the
ground that had touched some other metal, in one case... Another situation
came from my 2m duplexors sitting on a metal painted floor and making
intermittent contact... I put a board under the duplexors and that
completely
cleared things up...
Just thinking out loud here...

I think this is the principle that companies use to detect shoplifting. An
RF field at the door activates diodes connected to the items they want to
protect. I'm guessing that if you hit the diode with enough power on
frequency x, you'll get a harmonic at 2x that can be detected. If X is
pulsed at a certian rate and the 2x matches the pulse rate, I would think
that would confirm it.

Now, if there was some sort of handheld device like this, it might make
hunting for these sorts of problems a bit easier.

Or am I all wet?


Ray J. Vaughan, MS, CBTE
KD4BBM
ray@...
Re: Crackle

Cris Caraballo
 

We had the exact same problem with our 2 meter repeater. Everything that
originated from the repeater (ID's, phone patch etc.) was fine, even on
site (very close) repeated transmissions were clean. But all other
repeated transmissions had noise in them when the wind blew or during high
humidity conditions.

Eventually we found the remote aux triband fiberglass antenna (2meter, 220,
440) about 50 feet away had a bad 2 meter section in it. We were using the
aux 2meter transmitter to link with the repeater in the next county and it
DID NOT have any noise (figure that one out). It wasn't until I got on roof
and shook the aux transmitter antenna on a calm day with a distant station
using the repeater (not the aux transmitter) that the noise reappeared. We
figured since the aux transmitter was clean than it can't be the antenna,
right?- WRONG! So, look for anything that will resonate at the repeaters
frequency, even an unused antenna, vibrate it and see what happens.
Good luck 73.
Cris KE4IIF

At 12:50 PM 4/19/99 EDT, you wrote:
From: SCOMIND@...

Hi Guys,

Our club could use some ideas on combatting a bad crackle in our 2M
repeater.
The site is a mountain top where there is almost always some wind. The
system
has behaved very well for years, but for some weeks there has been a bad
crackle on user transmissions. The crackle is worse during high winds, and
is
only present when the receiver hears a signal. That is, the carrier is
perfectly clean when only the transmitter is up, such as during the dropout
delay or IDs. This leads me to think it is not a bad antenna connection. The
site is very busy, with the continuous addition and removal of commercial
and
public service RF gear. A high-power TX was recently added.

Note that we actually have two identical systems on the same frequency, with
one being a hot standby. The repeaters are on separate towers a couple of
hundred feet apart. The crackle is the same on each repeater! It is bad
enought to cover up many user transmissions.

Thanks for any suggestions.

73,
Bob, WA9FBO

------------------------------------------------------------------------
Are you hogging all the fun?

Friends tell friends about ONElist!
------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"
Re: Crackle

[email protected]
 

Sounds like a classic case of rectification. Look for corroded metal to metal
contacts, both on the tower/antenna system, as well as down low, anywhere
within the near-field of the repeater..... It will drive you nuts, as I have
been through the same ordeal. It ended up being some scrap metal on the
ground that had touched some other metal, in one case... Another situation
came from my 2m duplexors sitting on a metal painted floor and making
intermittent contact... I put a board under the duplexors and that completely
cleared things up...

In a worst case scenario, II remember a western MA repeater owner's story
some years back where he would have radio WLS or some other
megawatt-clear-channel broadcaster come through his repeater at night, in
addition to the scratchies, due to a rectification problem on the site, due
to a metal to metal contact corrosion. That can be a real problem, and no two
situations are alike. It is going to be a chore finding it, if you ever do...
Good luck... 73, de Gary, W7NTF
Crackle

[email protected]
 

Hi Guys,

Our club could use some ideas on combatting a bad crackle in our 2M repeater.
The site is a mountain top where there is almost always some wind. The system
has behaved very well for years, but for some weeks there has been a bad
crackle on user transmissions. The crackle is worse during high winds, and is
only present when the receiver hears a signal. That is, the carrier is
perfectly clean when only the transmitter is up, such as during the dropout
delay or IDs. This leads me to think it is not a bad antenna connection. The
site is very busy, with the continuous addition and removal of commercial and
public service RF gear. A high-power TX was recently added.

Note that we actually have two identical systems on the same frequency, with
one being a hot standby. The repeaters are on separate towers a couple of
hundred feet apart. The crackle is the same on each repeater! It is bad
enought to cover up many user transmissions.

Thanks for any suggestions.

73,
Bob, WA9FBO
Re: Newbie questions

Michael J. Fletcher
 

You say you want a "clean" installation? You've already got most of it. This
will make a superb repeater.
The factory squelch gate module makes the MSR 2000 base station a repeater
just as it is supposed to. I use the factory Motorola time out timer module
which plugs in just like the others. Same for the CWID module. Pick these up
at the next hamfest for about 5 bucks each. I don't agree that a "better"
way to make a repeater is to use an external "ham" type controller. Your
repeater does not need to bleep, burp, "talk", give the weather, the time,
the stock market report, say "Have a nice day" or "Where are your
children", or play more tones than a pipe organ. The repeated audio may
suffer after running it through one of these unnecessary external devices.
If you want everyone to
ask you how you got that great sounding audio, just leave the squelch gate
card alone.
73, Mike, KE4SHA

-----Original Message-----
From: litz <litz@...>
To: Repeater-builder@... <Repeater-builder@...>
Date: Sunday, April 18, 1999 2:44 PM
Subject: [Repeater-builder] Newbie questions


From: litz <litz@...>

I just acquired a Motorola MSR2000 VHF 100w 4 ch base station, originally
set up for remote (two wire DC/tone) operation.

I want to convert this radio to a 2 meter repeater, and I understand that a
"squelch gate" module (TRN5324A), with some modifications is the "main
thing" needed to make the conversion from base to repeater operations.

My questions are:

1. The instruction manual says that a "time out timer" module (TRN5295A)
is standard with the factory repeater configuration. Is this module
absolutely necessary for repeater operation (circuit wise)? Are there FCC
regs requiring or "good practice" conventions, so that installing a time
out timer is a must or highly recommended? (the PA/PS is 100% duty cycle)

2. What is the best, easily programmable, Morse CWID board available,
that requires minimum modification to the MSR2000 circuitry? (I want to do
a "clean" installation.)

3. What other control modules should be left installed for repeater
operation? Presently the installed modules are: line driver, station
control module, guard tone decoder, squelch gate, four frequency control,
and R1 Audio.

4. Are there any RX-TX tune up issues (anything quirky)?

Thanks for any advise, or experience in advance,
Brian Litzenberger
GCK
N0PMZ







------------------------------------------------------------------------
Jansport Daytripper the perfect pack for short spring and summer
excursions*Key clip keeps keys handy*Front organizer pocket*Weighs1lb*
Capacity 2200 cu in! Members Pay $34.00*Free Shipping in US

------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"
Need 2m duplexor

[email protected]
 

Greetings,

I am looking for a used set of Wacom BP/BR duplexers for two meters... ,
four or six cans, six inch or eight inch diameter... Please tell me what you
have, their condition, and terms. This is for an experimental Motorola Micor
repeater, to be used for emergency work, or backup for the club repeater of
the Fort Lewis Amateur Radio Activity, W2USA, at Fort Lewis, WA. Thanks. 73!
de Gary, W7NTF
Re: FS: Micor low split mobile

"&#92;"BT&#92;" a.k.a kc0edo"
 

send me the pertinent details, I;m in the repeater radio market right now.

-bt&#92;kc0edo@...

-----Original Message-----
From: Jsimmons <auburn@...>
To: Repeater-builder@... <Repeater-builder@...>
Date: Friday, April 16, 1999 9:58 AM
Subject: [Repeater-builder] FS: Micor low split mobile


From: "Jsimmons" <auburn@...>

I have some VHF low split (2 meter ham band) 45 watt Micors for sale.

Please e-mail if you are interested.

John NI0K


------------------------------------------------------------------------
New hobbies? New curiosities? New enthusiasms?

Sign up for a new e-mail list today!
------------------------------------------------------------------------
This list is sponsored by the owners and users of "RBTIP"
Re: GE

Duane Hall
 

Progress Line (Prog )
25-54 MHz 60-100 Watt Tx
Carbon Dating = 1964?
Tubes
Cool - Does it have a dynamotor?

You need GE datafile folder # DF3040 for the Tx and DF1021 for the Rx
Sorry, no manual here...

Do you have a boat and a rope? :- )

Duane
KA8GVH

----- Original Message -----
From: Brent DeSalvo KF4TNP <Bug1@...>
To: <Repeater@...>; <Repeater-builder@...>
Sent: Sunday, April 18, 1999 8:16 PM
Subject: [Repeater-builder] GE


From: Brent DeSalvo KF4TNP <Bug1@...>

I have a Mobile rig tuned to 52.525
looking for pinouts for power etc.
the only info i have on it is
GE MA/E-16W
Issue 0
Option AT2
Filing type set 23A

and on the inside is
4ER24B2 Rev B
4ET23A13 Rev A
can anybody help with this old rig


Brent DeSalvo (KF4TNP)

ICQ UIN# : 17430698
Mailto:Bug1@...
440 MHz Duplexer

Jeff Weinberg W8CQ
 

Hello Listmembers,
I am in need of a new set of cans for my 440 machine. I would like to find either a 4-can or 6-can setup like Wacom, dB Products, etc. If you can help me out, please let me know.

Thanks,
Jeff Weinberg W8CQ
w8cq@...
GE MASTER II low Band base

Brent DeSalvo KF4TNP
 

ok i have found out that it is the 36 - 42 MHz split and i am going to
try and mod it for the 42 - 50 MHZ split the tx is done it works great
and i am going to work on the RX if anybody has done this or has any
idea please let me know thatnk you

Brent DeSalvo (KF4TNP)

ICQ UIN# : 17430698
Mailto:Bug1@...
214161 - 214180 of 214745