Thanks to all for your replies.
Joe M wrote
You need to reject the opposite TX on each repeater. Your BP
filters were set wrong. You rejected the RX on the TX side -
something the duplexer should be doing already. You need to install
them in the repeater and reject the other TX. IOW, install
Try this one T.J. I've used one of their UHF antennas and they are very good
quality. Specs seem to fit exactly what you are looking for.
http://www.kathrein-scala.com/catalog/K5516231.pdf
Dan N8DJP
Antenna suggestion question?
Posted by: T.J. kc8...@yahoo.com kc8lts
Date: Sat Feb
Joe
you dont have any PL tone???on your repeaters
gervais
ve2ckn
--
From: wa5luy wa5...@cablelynx.com
Sent: Sunday, February 15, 2009 8:15 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Help with intermod between
wa5luy wrote:
Bare with me this is a bit long.
Our repeater is on 146.76TX / 146.16RX. In the next town the repeater
having the problem is on 147.36TX / 147.96RX. Both repeaters are
Motorola Micors.
Had the same exact situation with 146.745 and 147.345 years ago. Both
MICOR's, not that
It looks like the mix is:
2X146.76 - 147.36 = 146.16Mhz
2X146.76 = 293.52Mhz would have to be made somewhere for the mix to
occur. I would think that the most logical point would be in your final
PA stage.
Have you sniffed around your PA stage with a short probe to see if you
have 293.52
Ralph,
Do you have available an oscilloscope? If so, I'll try to walk you
through the station an resolve the issue.
Kevin Custer
Hi all.
I am working on a Micor repeater (not Mobile) and I am having problems
with the Squelch and Audio circuits. Actual original usage of the
Micor
Hi Kevin
Yes I do. I built one micor repeater with no trouble last
summer. Worked like a charm. The only problem it is located in
Montana with my son, N7XVF where I can't get to it to make any measurements.
My next trip up there I will be leaving him a portable 7604 Tek scope and a
scope for
This is one of the toughest intermod products to solve. 2 transmitters
600 kHz apart generate spurs every 600 kHz on both sides of each
transmitter. When we were co-ordinating repeaters, it's one parameter
we always looked at, and tried to keep nearby repeaters off of that
600 KHZ separation
well said
- Original Message -
From: Gary Hoff
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, February 15, 2009 10:33 AM
Subject: Re: [Repeater-Builder] Re: Help with intermod between repeaters.
This is one of the toughest intermod products to solve. 2 transmitters
At 2/14/2009 22:10, you wrote:
Morning Crew,
I need some suggestions on what tone frequency people are using for the ID
on their repeater as well as speed for the ID. I am using a repeater
controller that I can adjust the frequency and speed of the system. I want
to use something that can be
At 2/14/2009 23:15, you wrote:
At 10:10 PM 2/14/2009, Peter Summerhawk wrote:
Morning Crew,
I need some suggestions on what tone frequency people are using for
the ID on their repeater as well as speed for the ID. I am using a
repeater controller that I can adjust the frequency and speed of
When were these two repeaters coordinated? RX freq so close to the TX freq
of the other repeater doesn't exactly sound like a good engineering
practices, even with 18 miles between the two sites...
On Sun, Feb 15, 2009 at 9:37 AM, Gary Glaenzer glaen...@verizon.net wrote:
well said
-
Lost my parts list and schematics mpsa npn switch
Hi ,
I am quite sure the IMD from ( 2A- B ) the 2 x TX frequency .
Please try kill it make it as low as possible .
Will work for this issue
But base on no other object produce IMD out side both transmitters.
Good luck 73s
de VR2XVD
On 2/15/09, Joe k1ike_m...@snet.net wrote:
It looks like
On Sat, 14 Feb 2009, Peter Summerhawk wrote:
Morning Crew,
I need some suggestions on what tone frequency people are using for the ID
on their repeater as well as speed for the ID. I am using a repeater
controller that I can adjust the frequency and speed of the system. I want
to use
18 miles apart and 1.2 MHz separation? How far apart do you want to
space repeaters? I know of repeaters only 210 kHz apart at the same site
that work fine.
Joe M.
AJ wrote:
When were these two repeaters coordinated? RX freq so close to the TX
freq of the other repeater doesn't exactly
Joe,
The transmit frequencies are separated by 600 kHz, not 1.2 MHz (147.360 -
146.760 = 600 kHz), which causes mixing products to fall exactly on the
inputs.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
I know, TX separation is not what he was talking about.
RX freq so close to the TX freq of the other repeater doesn't exactly
sound like a good engineering practices
Either RX is 1.2 MHz away from the other TX. So, my reply was accurate.
Joe M.
Eric Lemmon wrote:
Joe,
The transmit
Has nothing to do with the spacing, but with the intermod
products generated by the two transmitters exactly 600 kHz apart
generating spurious signals on the inputs of the receivers.
Gary - K7NEY
- Original Message -
From: MCH
To: Repeater-Builder@yahoogroups.com
Sent: Sunday,
At 16:23 2/14/2009, Chris Curtis wrote:
I ran a 6m and 70cm multicast repeater for years with 100' horizontal
separation and 30' vertical separation.
Granted the vertical separation makes more difference but the 100'
horizontal certainly didn't hurt.
Actually, it might have. If the antennas
Pete,
I always liked something like 400 Hz for impolite IDs that would need to be
played under users, and 500 Hz or higher for IDs that would stand alone. Many
radios have a peak in their acoustics between 650 Hz and 1.5 KHz, so audio
tones in that range will sound really loud on some radios.
I am converting 2 DB4105 and DB4041s to 6m use. I have changed them from
pass to pass-notch per http://www.repeater-builder.com/loband/ now I need to
make the interconnecting cables. I know it is suppose to be ¼ wave, I
believe that is ¼ wave of my tx and rx frequencies. Is this correct?
I
I plan on using LMR-400 as I have it readily available - Is this a good
choice?
NO
The answer for whomever asks next week is the same - NO.
Hi All,
At long last the South Auckland Repeater Group, based in Auckland, NZ has
finally got it's 10mtr Repeater up and operational.
The freq is 29.640 with no CTCSS (we are not permitted to run CTCSS for access
in NZ, may have to look at it later if it requires it and we get approval).
It is
Again, I know. Respond to AJ's post. He is the one saying 1.2 MHz is too
close for a TX to be to a RX that is 'only 18 miles away'.
Joe M.
Gary Hoff wrote:
*/Has nothing to do with the spacing, but with the intermod/*
*/products generated by the two transmitters exactly 600 kHz apart/*
Well what would be a good choice? Just saying its bad is really useless
information.
Trevor
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey
Sent: Sunday, February 15, 2009 1:10 PM
To:
RG-214, RG-142, RF-400, FSJ4-50, FSJ1-50, would all be good. Dissinular metals
in a tx-rx simultainious application can be bad
- Original Message -
From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
To: Repeater-Builder@yahoogroups.com
Take a look at the message archives. You'll see that this same question
comes up VERY regularly, and gets answered VERY regularly.
I'm not trying to be difficult, but a little looking before asking may yield
a wealth of other useful information to help you along the way.
Also, look around on
Trevor,
RG-214 is what most duplexer companys use for inter-cabeling.
If you can find some RG-9 that would be a good choice also.
The 214 is prob the best choice as is prob a little easier to get.
Mike
- Original Message -
From: Trevor Raty
To: Repeater-Builder@yahoogroups.com
Kevin,
Congratulations on getting your repeater on the air!
I am curious about your statement that you are not permitted to use CTCSS.
Please explain why that is so. Is it a legal prohibition or technical?
73, Eric Lemmon WB6FLY
-Original Message-
From:
I have been digging through archives and the site for the last week and
haven't found anything. Thank-you for the information.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey
Sent: Sunday, February 15, 2009 2:09
Hi Eric,
In responce to your email.
In NZ the regulary body (Govt) states that access to any Amateur Radio
installion must be available to all access.
What this means to us that we can only use carrier access, no tones like in a
CTCSS system.
Unlike in the US there are not that many repeater
http://www.repeater-builder.com/antenna/double-shielded-coax.html
- Original Message -
From: Trevor Raty tr...@monkeywireless.net
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, February 15, 2009 5:32 PM
Subject: RE: [Repeater-Builder] Duplexer Cable Length / Recomendations
I have
An archive search for LMR-400 on this Yahoo group came up with over 290
posts on the subject.
Chuck
- Original Message -
From: Trevor Raty tr...@monkeywireless.net
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, February 15, 2009 5:32 PM
Subject: RE: [Repeater-Builder] Duplexer
Ralph,
Sounds good. I'll try to be available when you get the equipment to
your son.
Kevin
Hi Kevin
Yes I do. I built one micor repeater with no trouble last
summer. Worked like a charm. The only problem it is located in
Montana with my son, N7XVF where I can't get to it to make any
Woe to those that ask the LMR 400 question! :)
-Kevin
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey
Sent: Sunday, February 15, 2009 6:45 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
Trevor,
A few comments, as the List Owner.
First, you didn't ask what is/was a good choice - you asked if LMR-400
is a good choice, and the answer is NO; so don't get an attitude because
you think someone should have expounded upon a yes/no question.
LMR type cable is not a good choice in
And I thought this was a good place to get help - I guess it's just
like QRZ or hamsexy - A bunch of jackasses that have egos larger than
Motorola.
--- In Repeater-Builder@yahoogroups.com, Kevin Custer kug...@... wrote:
Trevor,
A few comments, as the List Owner.
First, you didn't ask what
At 16:51 2/15/2009, Trevor wrote:
And I thought this was a good place to get help - I guess it's just
like QRZ or hamsexy - A bunch of jackasses that have egos larger than
Motorola.
Hey, Trev, don't let the door hit your butt on the way out.
--
Dave Gomberg, San Francisco NE5EE
Yes Trevor, you have stumbled across a group of 4334 jackasses. Please
do yourself a favor and leave us. Save yourself before you become one
of us!!
Joe
Trevor wrote:
And I thought this was a good place to get help - I guess it's just
like QRZ or hamsexy - A bunch of jackasses that have
Kevin,
Could you publish the CTCSS tone required, perhaps even have it announced when
the machine does polite IDs? CTCSS does not discriminate. As in the case of
carrier-access, any licensed amateur willing to obtain the correct equipment
can use the repeater.
On a band with worldwide
Hi Kevin
This repeater I am working on is here in Tucson.
I will have additional data tomorrow. I will email it to
you. I need to make some more tests to understand what
I am missing.
Thanks
Ralph
- Original Message -
From: Kevin Custer kug...@kuggie.com
To:
One of the major TV stations here in Los Angeles is KTLA, on channel 5.
Klaus Landsberg, a ham (but call sign unknown) was the first chief
engineer, and designed the station back in the 1940s.
I recently found a writeup of the early days, and page 2 shows the
early antenna design. Klaus came up
The 600 kc thing also works well with FM stations, in our case 89.3
and 89.9. The mixing here was occurring at guy points of the tower.
When I insulated the turnbuckle safety cable (the one they weave
through the turnbuckle centers) from the turnbuckles, the intermod
went away.
Laryn K8TVZ
Sent: Sunday, February 15, 2009 11:02 PM
Subject: freg
we are going to put a repeater on a site near a new DTV site. could anyone
here give me the freg the DTV channels use?
thanks John
Check here:
http://www.fcc.gov/dtv/markets/
Chuck
WB2EDV
- Original Message -
From: Maire-Radios
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, February 15, 2009 11:03 PM
Subject: [Repeater-Builder] Fw: freg
Sent: Sunday, February 15, 2009 11:02 PM
Subject: freg
On Sun, 15 Feb 2009, Chuck Kelsey wrote:
Check here: http://www.fcc.gov/dtv/markets/
Supposedly, the benefit to DTV is that it requires a tight filter mask,
so out of band interference should be minimized.
--
Kris Kirby, KE4AHR k...@catonic.us
But remember, with no superpowers comes no
At 08:13 PM 02/15/09, you wrote:
On Sun, 15 Feb 2009, Chuck Kelsey wrote:
Check here:
http://www.fcc.gov/dtv/markets/http://www.fcc.gov/dtv/markets/
Supposedly, the benefit to DTV is that it requires a tight filter mask,
so out of band interference should be minimized.
But you still have
And 99 percent are negative.
Mike WA6ILQ
At 03:45 PM 02/15/09, you wrote:
An archive search for LMR-400 on this Yahoo group came up with over 290
posts on the subject.
Chuck
- Original Message -
From: Trevor Raty
mailto:traty%40monkeywireless.nettr...@monkeywireless.net
To:
On Sun, 15 Feb 2009, Mike Morris WA6ILQ wrote:
KABC 7 7
KCAL 9 9
KTTV 11 11
KCOP 13 13
KSCI 18 18
KTBN 40 23
KVCR 24 26
KCET 28 28
KFTR 46 29
KTLA 5 31
KDOC 56 32
KMEX 34 34
KRCA 62 35
KNBC 4 36
KPXN 30 38
KVEA 52 39
KLCS 58 41
KWHY 22 42
KCBS 2 43
KAZA 54 47
KOCE 40 48
I am just curious if any other amateur 2 meter repeater has a more
complex RACES Skywarn paging system than the 146.88 W5FC Dallas TX
repeater?
The normal daytime amateur state of the repeater is 110.9 Hz full PL.
To go into RACES Skywarn mode the following sequence occurs:
1. Repeater Mode
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