The UHF Micor Mobile was a little tricky to tune, especially the AFC
type. I would take care to follow the tuning procedure as outlined in the
manual to the letter.
Also, I am not sure what isolation measures you have already taken but
they would have to be fairly extensive for pairs
The Motorola shop I worked in had a Sinadder in the cabinet with about
an inch of dust on it. All of us Techs used it when we first started until
we realized that after tuning 3 or 4 receivers a day for several weeks, it
wasnt hard at all to do it by ear.
Wade - KR7K
- Original
There is another possibility that I have run into with my Decible
Products Antennas of the DB-224 type: If the elements of the
antenna are not welded to the metal suport on one end, corrosion can
occur and movement can be experienced. If the DB-224 antenna you
are using is not welded but
Most Motorola radios that had the control head seperate from the rest
of the radio used ignition sense. On the older radios it was plugged into
the rear of the control head. Its been several years since I was a radio
tech but as I recall pin #19 on the back of the head was +12 VDC for the
John,
That's not possible, because the standard Sinclair harnesses are
fabricated with crimped connections at every junction.
73, Eric Lemmon WB6FLY
John Everson wrote:
Hello there.
If you have the access to some elbows just put them in line with the
harness cable and see if the added length
Hi Wade,
Thanks for the suggestions. I guess my gutt told me the proper tune-up
procedure was the way to go. We just didn't have the time to do it at the
time.
I have one question about what you said. You say I should have pass-reject
duplexers on both systems. How can I put a pass-reject
--- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED]
wrote:
John,
That's not possible, because the standard Sinclair harnesses are
fabricated with crimped connections at every junction.
73, Eric Lemmon WB6FLY
Hi Eric.
That occured to me just a few minutes ago when
Forest Service,
Start by finding out any protected land by every
political , envirmental, tribal land including sacred burial sites, I would
reasearch everything before you sign on the dotted line, I would ask what
paperwork is involved and ask for any help or who
Try this site --- http://www.apcointl.org/
M. H.
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, January 06, 2005 11:35 PM
Subject: Re: [Repeater-Builder] question on repeater set up...
apco is the public saftey communications
Chris..
I have done what you are talking about several times.
And what they are talking about with the cavity is that u tune the notch
side the the can to notch out the repeaters TX freq and tune the pass for
what the link radio will be operating at to the middle of the frew that are
used for
Neil;
What was pertty bad Sad was no radio ... just a couple of control
heads a red green lamp, a mic. a Off-On -Vol Control. and a Squelch
control.
that was way back in 1969 well the thing disappearred one day along with
some other stuff ( B E ? ? ? ) .
like I say the mike was
once was some group called O.F.A.R.T.S. I think it was a ham club seen them usually at
the Marshall, MI. hamfest.
M. H.
- Original Message -
From:
[EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 08, 2005 11:50
AM
Subject:
Hi Chris,
Ok, I was not understanding that you were only half duplex on the
remote, I would guess that you are linking to another repeater in this way?
This totally does work, the only drawback to running this way is the
courtesy tone and squelch tail for the other repeater are
Say Rob.
Ye olde ancient stuff Motorola probably never gave the data
on the web since it was presumed DOA .
M. H.
- Original Message -
From: Rob [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Friday, January 07, 2005 10:31 AM
Subject: [Repeater-Builder]
unsubscribe
Yahoo! Groups Links
To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
- Original Message -
From: Wade Lake [EMAIL PROTECTED]
Ok, I was not understanding that you were only half duplex on the
remote, I would guess that you are linking to another repeater in this
way?
This totally does work, the only drawback to running this way is the
courtesy
I don't think so.
- Original Message -
From:
Robert
Jarnutowski
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 08, 2005 11:44
PM
Subject: [Repeater-Builder]
unsubscribe
unsubscribe
Yahoo! Groups Links
To visit
Russ brought up the point that some techs really shy away from
the DB-224 because of the potential noise problem. I've been scared of the
fiberglass collinears because of the element solder joint crack issue and it's
resultant noise problems.
What's the commercial 'antenna of choice' for
That works too...
Wade - KR7K
- Original Message -
From: Gerald Pelnar [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 08, 2005 9:47 PM
Subject: Re: [Repeater-Builder] in-band linking update
- Original Message -
From: Wade Lake [EMAIL
Just short out the AFC buss. Simple huh?
If you want to continue to use the AFC, be sure if you have to use
high side injection, you need to reverse the discriminator diodes.
Be very vareful the diodes are very fragile.
Wade Lake wrote:
The UHF Micor Mobile was a little tricky
I don't think so either ...
Neil
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
* Your use of Yahoo! Groups is subject to:
Is this a guyed tower? If so, did they retension the
guy wires after the tower was shortened? Did they
strap around the turnbuckles? (Not just the safety
wire to stop the turnbuckle from loosening, but a
ground strap.) If they did not, a quick test would be
to use a set of auto jumper cables
Are you seriously looking for the schematic diagram for the TU-154?
Neil
Mark Holman wrote:
Say Rob.
Ye olde ancient stuff Motorola probably never gave the data
on the web since it was presumed DOA .
M. H.
- Original Message -
From: Rob [EMAIL PROTECTED]
To:
Yes, it does work that way ... once you get your ear tuned to what
you want it to hear.
Neil - WA6KLA
Wade Lake wrote:
The Motorola shop I worked in had a Sinadder in the cabinet with
about an inch of dust on it. All of us Techs used it when we first
started until we realized
Yes, it is guyed at about six levels (from memory). The
uppermost three sets of guys were replaced but I do not believe they added
straps around the turnbuckles. I'll take a peek today. Our antenna
is in the new guy zone.
A side note... I'm a ten minute drive from my site and
can pull
Is that better than being vertically challenged?
Neil
Joe wrote:
Some of us take offense to being called old farts. We
prefer Age challenged flatulants the politically
correct termonology for the 21st century.
Joe
--- Mark Holman [EMAIL PROTECTED] wrote:
once was some
Some of us take offense to being called old farts. We
prefer Age challenged flatulants the politically
correct termonology for the 21st century.
Joe
--- Mark Holman [EMAIL PROTECTED] wrote:
once was some group called O.F.A.R.T.S. I think it
was a ham club seen them usually at the
Just curious, what tri-band antenna are you referring to here?
-- Original Message --
My fiberglass antenna (yes singular - one triband antenna for all
three repeaters) was broken in Hurricane Frances this year. When it
broke, crackling was very pronounced when there was an
Aw come on the party is still fun !
but if you really have to drop out read the instructions below
.
M. H.
- Original Message -
From: Neil McKie [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, January 09, 2005 12:02 AM
Subject: Re:
AFC is disabled per the UHF mobile conversion instructions on
repeater-builder.
We just need to take the time to do a full tune-up again. I remember it
being quite touchy the first time. I wondered if it was to touchy and
that's why it's so far off now.
Is it normal for a receiver to loose so
Doug,
For
two meter operation a DB-224 in the only way to go but please read my privious
post about fixing new antennas before installing them.
Paul
-Original Message-From: Doug Zastrow
[mailto:[EMAIL PROTECTED]Sent: Saturday, January 08, 2005 5:48
PMTo:
Doug Zastrow wrote:
Russ brought up the point that some techs really
shy away from the DB-224 because of the potential noise problem. I've
been scared of the fiberglass collinears because of the element solder
joint crack issue and it's resultant noise problems.
What's the
I have to Strongly disagree.
Scott and I have tuned literally hundreds of receivers, and while we can
hit the mark nearly every time when listening to quieting, there are
other factors to consider.
The ear is an excellent device for listening to quieting and comparing
that to a know
ROFLMAO
Mike
K1EG
- Original Message -
From: Joe [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, January 09, 2005 7:27 AM
Subject: Re: [Repeater-Builder] Re: Old-Guys
Some of us take offense to being called old farts. We
prefer Age challenged flatulants the
You shouldn't use AFC in a Micor MOBILE repeater conversion. WHY? The
off frequency user will pull the repeater transmitter off frequency as well:
http://www.repeater-builder.com/rbtip/micoruhfmobile.html
Kevin
Neil McKie wrote:
Just short out the AFC buss. Simple huh?
If you want to
I was wondering if anyone has had any luck converting a TX RX 74-70
Pass filter to a Reject? I tryed looking in the archives but is so
time consuming.
Bill
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To
J-poles are not antennas of a given impedance-try
placing the arrestor in line with a dc-grounded folded
dipole and there should be no difference seen on a
standard Vswr metre.
Brad
--- Benjamin Naber [EMAIL PROTECTED] wrote:
afternoon ya'll
Done a little bit of reading and playing
Agreed!!
Been there - done that!
Tried it once with the AFC still usable. Better if the AFC
isn't used.
Neil - WA6KLA
Kevin Custer wrote:
You shouldn't use AFC in a Micor MOBILE repeater conversion. WHY?
The off frequency user will pull the repeater transmitter off
Message: 12
Ed,
You need to contact APCO to get the coordinator for
Fire Frequencies.
http://www.apcointl.org/frequency/
Thanks,
John Lloyd, K7JL
Utah VHF Society Frequency Coordinator
Date: Thu, 6 Jan 2005 04:15:40 -0800 (PST)
From: Ed Lemley [EMAIL PROTECTED]
Subject: Re:
Hello Kevin !
You hit the nail right on the head when you speak of precipitation noise.
Our Lancaster ARC machine is just East of Buffalo and Lake Erie and I am sure everyone
out there Knows what kind of weather we experience here in Western New York!
We have been going crazy trying to figure
Hello to the group.
I have been cleaning out the garage. Here is a list of stuff that
needs to go.
I have the following manuals:
1. 1 Mastr Progress Line UHF Manual includes LBI 4000, LBI 3999, LBI
3529G, 3853C, These are for the TX, RX, Repeater Panel, and the power
supply.
2. 1 Mastr
It's kind of like which is better - a Ford or a
Chevy (I don't like either). Point being, what you've had good luck with you'll
stick with and swear by.
Personally, I wouldn't install a fiberglass
collinear antenna for a repeaterif it was free. Yet there are others who
would likely say
Scott, keep us posted as to the results. I know exactly of the problem,
living inland from Lake Erie by only a few miles.
Chuck
WB2EDV
- Original Message -
From:
[EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, January 09, 2005 1:41
PM
Yes, they have rod/coil construction. I
know from taking one apart that didn't last only months before lightning
destroyed it.
That was a painful experience since it was
a borrowed antenna. I had to buy a new one for the guy I borrowed it from and
still had to come up with an antenna
Got my words mixed up should have been "I had to buy a new one for the guy I borrowed it from
and still had to come up with an antenna for the repeater itwas
beingused on."
Chuck
WB2EDV
- Original Message -
From:
Chuck Kelsey
To: Repeater-Builder@yahoogroups.com
Chuck,
You
are correct, you use what you like the best. I use the DB-224/410 antennas
because I have never seen one turned into expensive toothpicks unlike my
lightning experience with fiberglass antennas. I was the field engineering
manager for a nationwide paging company, I knew
Does anyone have info on the Ericcson C719 radio
using the mobitex format for
Data transmission. I'm looking for the interface
cable / info on that cable
This is a late 80's type of unit.
John J. Riddell, VE3AMZ451 Cedarcliffe
Dr.,Waterloo, Ontario, CanadaN2K 2J1
Yahoo!
John,
Yahoo chops Email domains off the post.
Please Email your full address to me.
thank you
[EMAIL PROTECTED]
skipp025 at yahoo.com
John Everson [EMAIL PROTECTED] wrote:
Enough bandwith for now. Make a reasonable offer on any or all.
Please contact me off list.
Thanks to
re: Uniden and Milcom - Cresend 220 Mhz PA
There are at least two versions of the Milcom 220
Mhz PA. One is an almost plug and play onto the
224 Amateur Band. The Uniden ARX2125 pa is a same
basic layout unit, but a bit of pain to convert
up to 224Mhz. Some amateurs have been running them
--- In Repeater-Builder@yahoogroups.com, Chuck Kelsey [EMAIL PROTECTED]
wrote:
It's kind of like which is better - a Ford or a Chevy (I don't like
either).
Point being, what you've had good luck with you'll stick with and
swear by.
Personally, I wouldn't install a fiberglass collinear
Pat,
Our group has a Special Use Permit to operate a communications facility on USFS
property. If you are really interested in doing this, I suggest you contact
the Forest Service ranger district that is in charge of your desired area.
When you call, ask to speak to the person in charge of
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED]
wrote:
John,
Yahoo chops Email domains off the post.
Please Email your full address to me.
thank you
[EMAIL PROTECTED]
skipp025 at yahoo.com
John Everson [EMAIL PROTECTED] wrote:
Enough bandwith for
just fyi - i have one UHF isolator (with loads) and on DB harmonic filter
on ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=3864919799ssPageName=STRK:MESE:IT
and
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemcategory=43010item=3864921070rd=1ssPageName=WDVW
if you are
Just want to get some input on what users think. I have the option
to mount a DB224 on the top of a tower or side mounted at the top,
which would be best, in regards to noise verses stability, etc.
Mathew
Yahoo! Groups Links
* To visit your group on the web, go to:
Side mounting is going to be much better mechanically, assuming you bracket
at the top of the antenna as well.
If you can afford to give up coverage to the back of the tower, this is not
a bad choice.
Chuck
WB2EDV
- Original Message -
From: w9mwq [EMAIL PROTECTED]
To:
Everyone remembers my problems I had with a neighbor about 26 miles
away getting into my repeater on the input with his 9Khz wide
transmitter, which the GE MASTR receiver took care of that, but I
just installed a ARR preamp, and he is back, and I think I tuned
them correctly, the DB-4001-2
Mathew,
I've had experience both ways. Top mount
in the absolute clear and side mount 19" away on guyed tower
with 36" face.
Top mount was super for omni-directional coverage butthe
absolute pits for lighting requiring isolating the repeater cabinet from the
floor and bringing
Well as far as coverage goes, I would put the antenna on the side of the
tower that is going to be covering the largest part of the county. Then we
are planning on putting in three remote bases to cover the county.
Side mounting is going to be much better mechanically, assuming you
bracket
58 matches
Mail list logo
