I am seeking tuning instructions for the Telewave TPRD-4544 Duplexer.
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Does any one have the tune up instructions for the TXRX 11-70-01
450 Band pass filter.
Thanks
Doyle
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Two VHF repeaters in town have been bothered by this from time to
time.. The first, which only occasionally gets it, but gets it LOUD
when it happens, is 146.730- The second (mine) at 146.850- is
getting it almost continuously now, but weak, ranging from will
open squelch (even with PL!)
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I received the following information regarding Dayton Flea
Market Space Packets:
[paste]
I've been told that a
I use an SG-7900, which diamond tells me that they don't recommend for
mobile use (where ELSE should I put it??)
I had the same problem with the roof metal being too flexible.
I used a Ryobi Weedeater blade inside, as a giant washer, and another
conventional smaller washer on the top. This
Congratulations.
This phenomemnon is refered to by the Fredom Net Repeater Orginization
as The Beast. It is desence that appears + and - 600kHz from the
output of any 2M transmitter, If you have a spectrum analyzer
connected to your duplexer you will notice grass that comes up only
when a carrier
I'd be interested in hearing the wav file you recorded, Dave
But bear in mind that your comment that it's not coming from either
repeater could easily be wrong. As a matter of fact, if you're running a
delay in the audio path of either repeater, one of them is most definately
involved. It sounds
There is a simple way to have a reliable backup battery system without a
relay. Try this:
Connect your fused repeater power cable directly to the battery terminals,
without any intervening devices. Connect your power supply to the battery
through a single Schottky diode. Adjust the power
I'd be interested in hearing the wav file you recorded, Dave
As would I...
But bear in mind that your comment that it's not coming from
either repeater could easily be wrong. As a matter of fact,
if you're running a delay in the audio path of either repeater,
one of them is most
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
I'd be interested in hearing the wav file you recorded, Dave
But bear in mind that your comment that it's not coming from either
repeater could easily be wrong. As a matter of fact, if you're
running a
delay in the
I agree... A quick verify test would be to bypass the delay
line.
I've not heard the audio in what I get on the 85.
The 73 only gets it infrequently, so we'd have to wait months for it
to happen.
Although both machines run RC-210 controllers now, the 73 had the
problem with a cat-1000
You must cover a search radius of 1/4 to 1/2 of a mile from the
antenna. Problem goes away when you run the repeater into a dummy
load, right?
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At 04:14 PM 4/21/2006 -, you wrote:
This is pretty likely. I'm almost alone at my site, sharing with a
low power UHF repeater.
---What's the freq(s) of the UHF machine? (that it's running low power has
nothing to do with it g). I also assume none of the machines are running
an isolator?
Guys,
I think you're missing one detail here. 146.73 minus 146.85 is 1200 KHz.
Twice the
typical 2 meter split of 600Khz.
I'm not sure EXACTLY why it's happening, but the math here has BAD written
all over it. Anytime you deal with multiples of your input to output
frequency separation, it's
--- In Repeater-Builder@yahoogroups.com, DCFluX [EMAIL PROTECTED] wrote:
You must cover a search radius of 1/4 to 1/2 of a mile from the
antenna. Problem goes away when you run the repeater into a dummy
load, right?
I can't do that remotely, but commanding the transmitter off does NOT
stop
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
At 04:14 PM 4/21/2006 -, you wrote:
This is pretty likely. I'm almost alone at my site, sharing with a
low power UHF repeater.
---What's the freq(s) of the UHF machine? (that it's running low
power has
At 12:28 PM 4/21/2006 -0400, you wrote:
Guys,
I think you're missing one detail here. 146.73 minus 146.85 is 1200 KHz.
Twice the
typical 2 meter split of 600Khz.
---My intermod program doesn't show any issues with the 4 freqs involved
however and I'm not sure what the split itself has to do
At 04:30 PM 4/21/2006 -, you wrote:
460-ish, and no, no isolators.
---Hopefully you can find out the exact freqs Dave. That other repeater
could easily be part (or the missing 'link') of the problem.
So, where I can hear the wav file?
Ken
Is anyone or dose anyone know of a good tower climber in NJ at a fair price?
We have an opportunity to move a few of our systems to a higher
elevation on a 60' tower.
Thanks in a advance
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Visit your group "Repeater-Builder" on the web.
Scott, your math is off by +10dB.
On 4/21/06, Scott Zimmerman [EMAIL PROTECTED] wrote:
Guys,
I think you're missing one detail here. 146.73 minus 146.85 is 1200 KHz.
Twice the
typical 2 meter split of 600Khz.
I'm not sure EXACTLY why it's happening, but the math here has BAD written
all
--- In Repeater-Builder@yahoogroups.com, Scott Zimmerman
[EMAIL PROTECTED] wrote:
Guys,
I think you're missing one detail here. 146.73 minus 146.85 is
1200 KHz.
Twice the
typical 2 meter split of 600Khz.
I'm not sure EXACTLY why it's happening, but the math here has BAD
written all
With the UHF freqs in the equation, maybe something else will jump
out
Well, there are three UHF machines involved I guess.
444.375- at the 73 site, and 441.9 at the 85 site, plus this
commercial one at my site, that I don't have the freq for.
At the 73 site there is normally a 220 machine,
So, where I can hear the wav file?
Can I email it somewhere?
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Dave
Whether they're active (actually transmitting) or even supplied with power
is irrelevent. If they have an antenna connected to their PAs, that's all
that matters in intermod issues.
With the new freqs you supplied, still no 1st through 5th order products
are found however (although
Put it up on my anonymous FTP site. That way anyone who wants to hear it
can download it:
ftp://ftp.ah6le.net/incoming
Once it's there, I'll move it to the /pub directory so everyone can access it
Ken
At 04:48 PM 4/21/2006 -, you wrote:
So, where I can hear the wav file?
Can I email it
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
Put it up on my anonymous FTP site. That way anyone who wants to
hear it
can download it:
ftp://ftp.ah6le.net/incoming
Once it's there, I'll move it to the /pub directory so everyone can
access it
It's there,
At 05:09 PM 4/21/2006 -, you wrote:
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
It's there, enjoy.
I've run it through spectrum analysis. The 60 Hz hum is in my
soundcard/computer, and you can see the 127.3 PL, but that's encoded
by the repeater. The rest is
Sounds like a definate transmitter being heard by receiver with audio
delay to me.
Is it always that quieting? Wow
Ken
--
President and CTO - Arcom Communications
Makers of the world famous RC210 Repeater Controller
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
Sounds like a definate transmitter being heard by receiver with
audio
delay to me.
Is it always that quieting? Wow
I never hear it as loud (apparent deviation change?) as the 73.
On the 73 it's a grab the volume
At 05:24 PM 4/21/2006 -, you wrote:
I had it zipped, but it didn't make much gain. Not too surprising I
guess.
---Saved about a meg when I zipped it, which semed like a worthwhile
improvement to me!
Ken
--
Classic 600kHz mix, Find a AM radio and tune it to 600kHz and walk
around, you may be supprised.
On 4/21/06, Ken Arck [EMAIL PROTECTED] wrote:
At 05:24 PM 4/21/2006 -, you wrote:
I had it zipped, but it didn't make much gain. Not too surprising I
guess.
---Saved about a meg when I
At 05:28 PM 4/21/2006 -, you wrote:
Interesting.. As it happens, I have the HP sig gen handy.
Right on the input freq, or slid a bit?
---I would doubt that the interfering signal is going to be exactly that
of your sig gen but regardless, the point here is to create an audible
heterodyne.
At 05:35 PM 4/21/2006 -, you wrote:
I just got a phone report of hearing a voice in the noise this
morning, but neither of us can hear it on the input.
---Probably matrixing
Ken
--
President and CTO - Arcom
It's there, enjoy.
I've run it through spectrum analysis. The 60 Hz hum is in my
soundcard/computer, and you can see the 127.3 PL, but that's encoded
by the repeater. The rest is pretty indistinct in time or frequency,
but I hear a repetitiveness to it at about 4 Hz.
Kind of like
I use an SG-7900, which diamond tells me that they don't recommend
for mobile use (where ELSE should I put it??)
Do you really want an answer? g
I had the same problem with the roof metal being too flexible.
I used a Ryobi Weedeater blade inside, as a giant washer, and
another
Would you want to believe 146.85 - 146.73 = 0.12 or 120 kHz?
Neil - WA6KLA
Original Message
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] That horrible noise
Date: Fri, 21 Apr 2006 12:28:12 -0400
Guys,
I think you're missing one
Actually it probably would of been better if I measured in octaves,
but that would of taken too long and not of been so simple.
Just currious, Do you have a AM radio station on 590, 600 or 610KHz in
the vincinity?
On 4/21/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Only 10 dB ???
Neil
I don't seem to be able to upload files at this point.
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--- In Repeater-Builder@yahoogroups.com, DCFluX [EMAIL PROTECTED] wrote:
Actually it probably would of been better if I measured in octaves,
but that would of taken too long and not of been so simple.
Just currious, Do you have a AM radio station on 590, 600 or 610KHz
in
the vincinity?
At 4/20/2006 10:56 PM, you wrote:
I am seeking tuning instructions for the Telewave TPRD-4544 Duplexer.
Is that the UHF flatpack with 6 small cylindrical cavities? If so, it's a
notch duplexer.
Bob NO6B
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At 4/21/2006 09:09 AM, you wrote:
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
I'd be interested in hearing the wav file you recorded, Dave
But bear in mind that your comment that it's not coming from either
repeater could easily be wrong. As a matter of
At 4/21/2006 12:10 PM, you wrote:
No, listen to the beginning of each audio segment. It's classic RF
feedback with audio delay. Sounds like a Kendecom too.
Bob NO6B
I'm not sure what you mean here..
The equipment you're listening to is Daniels MT-2 VHF, with 21.5 MHz
first IF.
OK,
At 12:10 PM 4/21/2006 -0700, you wrote:
Is that the UHF flatpack with 6 small cylindrical cavities? If so, it's a
notch duplexer.
---No, it's a BP/BR base design:
http://www.telewave.com/pdf/TWDS-6014.pdf
Ken
--
Yes, but now we're debugging a problem on your repeater, correct?
If so,
replace the switcher with a linear supply see if the problem
continues.
Keeps happening with the power supply at my site shut down.
I have a relay that I can command from the controller, to shut off the
AC input to
Top of my garage door is 10' high ...
Neil
Original Message
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: Anetenna Help
Date: Fri, 21 Apr 2006 18:06:27 -
Ahem ... I use a quarter wave antenna on each band with the NMO
Remeber, it isn't nessacarilly your power supply.
On 4/21/06, Dave VanHorn [EMAIL PROTECTED] wrote:
Yes, but now we're debugging a problem on your repeater, correct?
If so,
replace the switcher with a linear supply see if the problem
continues.
Keeps happening with the power supply at
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
Top of my garage door is 10' high ...
Mine's a bit lower than that.
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At 4/21/2006 01:24 PM, you wrote:
At 01:02 PM 4/21/2006 -0700, you wrote:
At 4/21/2006 12:17 PM, you wrote:
first. Another common culprit is site video cameras: 38th harmonic of
15.75 kHz is 598.5 kHz, so see if the interfering signal is 1.5 kHz above
or below your input.
Since your RX
I'm trying to interface a NHRC-2 controller into a
Mastr II repeater station (the continuos duty actual
repeater). The GE controller works fine. But if I
connect the NHRC and pull the GE then keying up lasts
about a second then it un-keys and re-keys continuosly
until you release the handheld.
You wouldnt hear the sync buzz,your rx is to narrow! I live with the
beast here,coming from a neighbors house who wont let me find or fix it.
It mixes with ANY vhf signal and sends it back at me every 10khz up and
down the band. I can get away from it if I offset either the rx or tx
freq
At 08:58 PM 4/21/2006 -0400, you wrote:
You wouldnt hear the sync buzz,your rx is to narrow!
--I ABSOLUTE disagree with this. You can easily hear sync buzz on a NBFM
receiver.
Ken
--
President and CTO - Arcom
Hi All,
I am wanting to use one TX from our repeater site, to link to two link
RX's, these are on opposite sides of the repeater.
I was thinking about having two different CTCSS tones, one for each, and
then having the TX generate the two tones together. This way I can use one
freq., but
Paul, the NHRC-2 uses an opto isolator in the input COR circuit and it
can be a little hard to drive from the GE COS signal. You might try
using the RUS signal as your COR input and see how that goes. If RUS is
not following the COR, you might have to cut a jumper (H-41 to H-42 on
the System
I did run 162.2 and 192.8 on a HT90 and it did work with a Micor and M Pro receiver on the station end. Newer digital tone decoders will not work because the agregate of the two tones will cause the tone to look like the sum of the two, but it will excite a decoder reed, or frequency selective
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