Thanks to John Lloyd K7JL...
A copy of the LBI30200 UHF Exciter PDF showed up in
my email today, and it is now on the LBI library page at
repeater-builder at
http://www.repeater-builder.com/ge/lbi-master-list.html
Mike WA6ILQ
Yahoo! Groups Links
* To visit your group on the web, go to:
As long as we're looking up old articles - -
Intel is looking for a copy of the 1965 magazine in which
co-founder Gordon Moore first laid out his famous Moore's
law. And it's willing to pay 10 big ones.
http://update.informationweek.com/cgi-bin4/DM/y/hnIc0GS4YV0G4n0DKJs0Ex
Wonder if they'd
They probably have a 60 grace period in which they'll try and find an employee
with a copy
who in inelegible for the fee so they don't have to pay up.
73,
Jon
KD5SFA
-Original Message-
From: [EMAIL PROTECTED]
Sent: Apr 13, 2005 8:57 AM
To: Repeater-Builder@yahoogroups.com
Subject:
I have a question for the group about flipping frequencies around on a repeater. I think I know the answer, but I want to make sure before I do or don't do anything. I'm going to swap around the transmit and receive frequencies on a repeater. What I was wondering was, can I just swap the
+Depends on the cables having the right connectors on them.
tom n8ies
- Original Message -
From: T.J.
To: Builder Repeater
Sent: 4/13/2005 5:37:53 PM
Subject: [Repeater-Builder] Swaping TX and RX freqs?
I have a question for the group about flipping frequencies around on a
Richard
I saw your reply about the BFW92 replacing the MRF-901 and was
wondering if you would know of a replacement for a BFR-94. I am in
urgent need of one for my signal generator and maybe one spare. Thanks
a lot.
73 de Tom Manning, AF4UG
Richard D. Reese wrote:
I have received
At 07:19 PM 4/13/2005, TOM MANNING wrote:
Richard
I saw your reply about the BFW92 replacing the MRF-901 and was
wondering if you would know of a replacement for a BFR-94. I am in
urgent need of one for my signal generator and maybe one spare. Thanks
a lot.
73 de Tom Manning, AF4UG
I
Hello to the group
I have a question concerning the coax run from the duplexer to the
repeater. I am also using the GM300's as transmitter and receiver. How
long should I cut the cables for? And is it alright to use the 9914 as
those jumpers? My repeater frequncey is 443.025 with a positive
Don't use 9913 in any repeater setting. Either find some RG142 or use
hardline of some sort. LMR400 is not even a good choice. This I can affirm
to very quickly. The shortest route is what I took for my jumpers.
Mathew
-Original Message-
From: n2odw [mailto:[EMAIL PROTECTED]
Sent:
I have set the deviation level of the repeater to 4.5 Khz, which for
most users is excellent, however I have a few users whom no matter
what radio they use, alwys clips well over 6 Khz wide. Is there a way
to limit this? When these users come in, you have to turn down the
volume, but then
T.J. wrote:
I have a question for the group about flipping frequencies around on a
repeater. I think I know the answer, but I want to make sure before I
do or don't do anything. I'm going to swap around the transmit and
receive frequencies on a repeater. What I was wondering was, can I
Dave VanHorn wrote:
At 06:38 PM 4/13/2005, Mathew Quaife wrote:
Don't use 9913 in any repeater setting.
Would be helpful to state reasons, rather than blunt assertions.
It's kind of like software, I don't want to see comments that tell me
what the code is doing, I
At 11:42 PM 4/13/2005 -, you wrote:
I have set the deviation level of the repeater to 4.5 Khz, which for
most users is excellent, however I have a few users whom no matter
what radio they use, alwys clips well over 6 Khz wide. Is there a way
to limit this? When these users come in, you
At 05:30 PM 4/13/2005 -0700, you wrote:
If so, either it's not working correctly or you haven't set up your audio
levels correctly.
---Uhhh. make that if NOT :-)
Ken
--
President and CTO - Arcom Communications
Makers
Maybe you are new to the list. This topic has been discussed in
detail (even just recently) and it has been shown time after time that
the dissimilar metals (tined copper braid, over an aluminum foil) will
eventually cause noise in a duplex environment.
Relatively new yes, but then new people
--- In Repeater-Builder@yahoogroups.com, w9mwq [EMAIL PROTECTED] wrote:
I have set the deviation level of the repeater to 4.5 Khz, which for
most users is excellent, however I have a few users whom no matter
what radio they use, alwys clips well over 6 Khz wide.
Matt, is the 6kc a
The repeater is made up of a Maggoire HiPro transmitter, GE Mastr Pro ER41
receiver, Cat-1000 contoller. I am taking audio from the high side of the
volume control in the ER41. I've turned up the transmitter to 4.5 Khz and
the Cat-1000 tx level at right about 4.0 Khz, which passes the PL tones
Nope, I'm reading the peaks on my service monitor. I have a soft spoken
voice for the most part, almost have to yell to get to 4 Khz, and most
general users hits around 4 to 4.5, but the few tops out over 6 sometimes
6.5 Khz.
Mathew
-Original Message-
From: Laryn Lohman [mailto:[EMAIL
w9mwq wrote:
I have set the deviation level of the repeater to 4.5 Khz, which for
most users is excellent, however I have a few users whom no matter
what radio they use, alwys clips well over 6 Khz wide. Is there a way
to limit this?
What exactly are you wanting to limit? The level of
At 07:52 PM 4/13/2005 -0500, you wrote:
The repeater is made up of a Maggoire HiPro transmitter, GE Mastr Pro ER41
receiver, Cat-1000 contoller. I am taking audio from the high side of the
volume control in the ER41. I've turned up the transmitter to 4.5 Khz and
the Cat-1000 tx level at right
Just so that the users are not over deviating and causing problems on
adjacent channels. I've had all these settings set, it just seems that
these few can tend to overdrive the deviation most of the time.
Mathew
-Original Message-
From: Kevin Custer [mailto:[EMAIL PROTECTED]
Sent:
Mathew,
This is a common problem, especially when users with multiband/multimode
radios use them on FM repeaters, not realizing that they are
overdeviating. I guess it's a mixed blessing that some kind and gentle
listeners will advise a repeater user that his/her signal is loud and
clear when
If your duplexer has been properly tuned for your repeater pair, you can
exchange the high and low sides without any problems. Do NOT try to
retune the duplexer; it's just fine the way it is. If it worked okay in
a high-in low-out mode, you can swap sides when you change to low-in
high-out
A few things.
RG-213 is single shield RG-8 coax so that would not be good.
Keep in mind that Times is selling coax.
It is not as much the shielding but the fact that the shield and the foil move
and cause noise in your system. It has been talked about time and time again
here on RP.
Good luck,
Dave VanHorn wrote:
I wrote:
Maybe you are new to the list. This topic has been discussed in
detail (even just recently) and it has been shown time after time
that the dissimilar metals (tined copper braid, over an aluminum
foil) will eventually cause noise in a duplex environment.
The main qeustion is not about what type of coax to use but the length
of the transmission line between the duplexers and the repeater.
Yes I am about a 3 weeks into the group new. Thanks
Will
Russ Stafford wrote:
A few things.
RG-213 is single shield RG-8 coax so that would not be good.
My only caution was that *some* duplexers aren't created equal between
sides; therefore switching sides *may* not be possible. Motorola (and
others) made a few mobile duplexers that had more rejection on the
transmitter side, and simply switching them around wouldn't work
satisfactorily.
Will Wright wrote:
The main question is not about what type of coax to use but the length of the
transmission line between the duplexers and the repeater.
May I point you to an archived reply on the subject:
http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg15725.html
Kevin
I think that is what I was getting to as well, if there was a way to limit
the incoming audio, or like it was put, hope the other users lets the louder
ones know they are too loud. As for the system, the audio levels are set
just right for about 95% of the users.
Mathew
-Original
Dave VanHorn wrote:
I know I could use one of a number of "soft AGC" circuits to control the
incoming audio before it is repeated, but that would not prompt the
offending users to mend their ways. I am working on an audio monitor that
will interject the voice warning "average
Eric Lemmon wrote:
I am working on an audio monitor that will interject the voice warning
average modulation too high when it
detects that overdeviation of the input signal is present. It is not a simple
project!
The first problem (and maybe most difficult to handle) is evaluating a
noisy
At 09:27 PM 4/13/2005 -0500, you wrote:
I think that is what I was getting to as well, if there was a way to limit
the incoming audio, or like it was put, hope the other users lets the louder
ones know they are too loud. As for the system, the audio levels are set
just right for about 95% of
Seems like some mobile UHF duplexers have a fixed reject notch inherent and
you cannot run backwards without retuning, ie, they have high and low ports.
Ssb
-Original Message-
From: Kevin Custer [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 13, 2005 6:55 PM
To:
Dave,
I should have known that my gambit would raise some eyebrows! In truth, my
phrase working on is a euphemism for the vague period between thinking about
concepts and experimenting with.hardware. I know all too well that few
things are more irritating to repeater users than a function or
Ken Arck wrote:
It is not a matter of "perceived" deviation nor is it a matter of incoming
levels. It is not because some users might be using an Icom and others are
using a Kenwood.
Since the deviation levels mentioned were actually measured, it is obvious
that the transmitter is
Just reverse tha cables, no retunuing needed. lance
N2HBA
- Original Message -
From:
T.J.
To: Builder Repeater
Sent: Wednesday, April 13, 2005 5:37
PM
Subject: [Repeater-Builder] Swaping TX
and RX freqs?
I have a question for the group about flipping
At 11:18 PM 4/13/2005 -0400, you wrote:
You can have a repeater with no limiting and a user that is severely
clipped and have a total deviation of only 3.5 kilohertz will sound
considerably louder than a user running 5 kilohertz deviation not being
clipped.
---No argument about this at all,
At 10:05 PM 4/13/2005, Eric Lemmon wrote:
Dave,
I should have known that my gambit would raise some eyebrows! In truth, my
phrase working on is a euphemism for the vague period between
thinking about
concepts and experimenting with.hardware. I know all too well that few
things are more
Ken Arck wrote:
At 11:18 PM 4/13/2005 -0400, you wrote:
You can have a repeater with no limiting and a user that is severely
clipped and have a total deviation of only 3.5 kilohertz will sound
considerably louder than a user running 5 kilohertz deviation not being
clipped.
---No argument
Steve Bosshard (NU5D) wrote:
On our local EDACS PST clear voice audio from the switch receives ALC and
minor compression before going to the dispatch consoles or being repeated.
How much exactly is the amount of minor comprerssion, 2 to 1 or more?
Kevin
Yahoo! Groups Links
* To visit
I agree with Kevin on this, it's just a few users, and in person, these few
people talk very loud, I think they are deaf, I just want the system to be
heard all over the band, was the only reason I asked if there was a way to
basically shunt it at a maximum, so they are not all over the place. I
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