Hi to all,
Does anyone know of a source for the variactor or PA transistors for
the Motorola Micor UHF repeater...the active devices in the trippler
module.
I have a couple that need repair. Seems this item has the most
problems...more than the final PAs...and when one finds them on say e-
Alex,
Might try Mike, WB8ONY, at 727-434-0658 after 2 PM any day.
73, ron, n9ee/r
--- In Repeater-Builder@yahoogroups.com, Alexander Tubonjic
[EMAIL PROTECTED] wrote:
Hello All,
I am finally getting the time to put my UHF repeater together and
I
am in need of two items to complete the
Steve,
You might have this info. On the board here are plans for heliax
duplexers for 6. However, think you need 1 MHz or greater split.
I've never built one, but think I might give it a try. The cans are
very expensive or hard to find used. I've heard stories where
groups were given
This reminds me of an incident many years ago when Industry Canada (then
called DOC) contacted us re a ham 2 meter mobile interfering with
aircraft communications. To make a long story short, the local ham
wanted more power out of his transmitter and had physically adjusted the
low pass
Bob,
That site looked very good. Made me think of seeing about 75 8 or
so ft pieces of 1-5/8 at my repeater site about year ago. It had
been removed from tower and the tower guys used the easiest method
to remove it...cut a throw off. Did not think they would have been
of use, hi.
73, ron,
If I'm to understand, would this cavity betuned to notch the 132.950 Mhz frequecny? Whatever it is that is interefering is an intermittant problem, as it is only evident at times. I have noticed over the past few days that the audio on the repeater gets garbled up, but then when the repeater is
Hi Ron
yes have looked at the heliax duplexers. The split here is
only 500Kc, so it maybe a problem. Not having any decent test gear, ie,
spectrum analyser etc I may find it a problem. I have looked at a commercial
duplexer, but at 1200 UKP( about $2000), it is a definate no :-).
If the worst
At 08:47 AM 7/8/2005, Mathew Quaife wrote:
If I'm to understand, would this cavity betuned to notch the 132.950
Mhz frequecny? Whatever it is that is interefering is an
intermittant problem, as it is only evident at times. I have
noticed over the past few days that the audio on the repeater
Hi
taken from my post on another reflector
Apparantly the FCC in its vast wisdom, has determined that GMRS via
VOIP is ok as long as the internet medium is not PSTN. This allows
DSL, cable, satelite, T1 and most everything else except dialup to be
used. I have not verified this personally,
Hi All
I have sent out many copies of the manual.
I had no idea there were so many still in use.
Some people requested one but their email bounced.
Mike Morris WA6ILQ said that he would put it on www.repeater-builder.com
on the Other Manufacturers page.
So if you did not get it via email
Ok, this brought up a good point. Just for sakes I took the watt meter, from the amp into a 50 ohm load, I get 140 watts out, into the duplexer's I get 70 watts out, something there has changed. With a 2.2 dB insertion loss, I should be getting right about 90 watts out if I did the math right?
At 09:42 AM 7/8/2005, Mathew Quaife wrote:
Ok, this brought up a good point. Just for sakes I took the watt
meter, from the amp into a 50 ohm load, I get 140 watts out, into
the duplexer's I get 70 watts out, something there has
changed. With a 2.2 dB insertion loss, I should be getting right
At 09:42 AM 7/8/2005, Mathew Quaife wrote:
Ok, this brought up a good point. Just for sakes I took the watt
meter, from the amp into a 50 ohm load, I get 140 watts out, into
the duplexer's I get 70 watts out, something there has changed.
Wait a minute! You're saying that the amp is only
Oops on me, 140 into the duplexer with 70 watts out and a 2.2 dB insertion loss on the cans per TXRX. 3 Cans per side. I figured it up at 140 watts in which should give me about 88.6 watts back out of the duplexer.
Mathew
Dave VanHorn [EMAIL PROTECTED] wrote:
At 09:42 AM 7/8/2005, Mathew
Can you spell that out in a little less jargon,
please.
Also, do you not mean VOIP via GMRS?
PSTN?
Is this essentially saying that you can use your GMRS radio/repeater for
VOIP, internet access, and what else?
tnx
Don
At 02:09 PM 7/8/2005 +, you wrote:
Hi
taken from my post on another
At 09:59 AM 7/8/2005, Mathew Quaife wrote:
Oops on me, 140 into the duplexer with 70 watts out and a 2.2 dB
insertion loss on the cans per TXRX. 3 Cans per side. I figured it
up at 140 watts in which should give me about 88.6 watts back out of
the duplexer.
OK, that makes more sense, and
Mathew,
couple of things come to mind here.
If you getting less power with duplexer it could be due to duplexer not 50 Ohms giving higher SWR and PA is probably folding back. Also what type of watt meter. Hope something like a Bird. Cheap meters can give bad reading depending on load. Also
Well I just did a quick tweak on the tx duplexer, with 5 watts in I get three watts out, but then put the 140 watts in and still only get 75 watts out of the duplexer. Why would it change with higher power levels? I had asked that question once before about the 3 cans in the tx side and was
If the duplexer is tuned at maximum power output, could the swr be out of whack still. As for the watt meter it is a Yaesu YS-500, checked against a bird watt meter just a month ago, and measures up fine with it.
Mathew
Ron Wright [EMAIL PROTECTED] wrote:
Mathew,
couple of things come to
I serviced a Master II UHF Repeater last night,
has a Com Spec TP-38 tone panel attached.
The transmitter had an interesting mod I've
never seen. Maybe some of you know about this
trick? (The original Master II transmitter
doesn't transmit digital coded squelch well.)
The transmit audio
At 10:16 AM 7/8/2005, Mathew Quaife wrote:
Well I just did a quick tweak on the tx duplexer, with 5 watts in I
get three watts out, but then put the 140 watts in and still only
get 75 watts out of the duplexer. Why would it change with higher
power levels? I had asked that question once
I think your notes on how it is hooked are close but not exact( at
least not the way we have done them in the past) . The comp line needs to
be connected inside the element, A 2C effectively needs to be made into a
5C( or better yet use a 5C channel element). The comp line is a dc
Typically to say, there is nothing in this area as far as repeaters, a few on 460 Mhz and one on VHF at 158 Mhz, other than the two cell towers more than 5 miles away, that is about it.
Mathew
Dave VanHorn [EMAIL PROTECTED] wrote:
At 10:16 AM 7/8/2005, Mathew Quaife wrote:Well I just did a
At 10:45 AM 7/8/2005, Mathew Quaife wrote:
Typically to say, there is nothing in this area as far as repeaters,
a few on 460 Mhz and one on VHF at 158 Mhz, other than the two cell
towers more than 5 miles away, that is about it.
This gets into an area that I need to understand better, how do
Alex,
I would suggest for a controller you might look at the ICS-Basic
controller from ICS, they are under $100 bucks and it works GREAT!
They have another controller that will do linking and other functions
for about $140. I am using both of them and have NO complaints.
For an antenna, I
Interesting!! Please cite the reflecter/web site/address where you saw this
info posted. I would like to follow up on this with the PRSG for their opinion.
Doug N3DAB/etc./etc.
From: rtoplus [EMAIL PROTECTED]
Date: 2005/07/08 Fri PM 02:09:19 GMT
To: Repeater-Builder@yahoogroups.com
--- In Repeater-Builder@yahoogroups.com, Don Pomplun
[EMAIL PROTECTED] wrote:
Can you spell that out in a little less jargon, please.
Also, do you not mean VOIP via GMRS?
PSTN?
Is this essentially saying that you can use your GMRS
radio/repeater for
VOIP, internet access, and what else?
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
Interesting!! Please cite the reflecter/web site/address where you
saw this info posted. I would like to follow up on this with the PRSG
for their opinion.
Doug N3DAB/etc./etc.
Hi Doug
Here is the site that quotes the
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
Hello,
I am in need of 5 GE Master II VHF repeaters or base stations. Prefer 100 watt
units, but will concider others. If no repeaters or base units are available,
how about MVP mobiles?
Thanks
Larry Williams
[EMAIL PROTECTED]
Yahoo! Groups Links
* To visit your group on the web, go
Why would present any more problems on GMRS then with the ARS. If you don't
want unauthoriced (unlicensed) users you don't have to connect your
radio/repeater to a computer.
Doug N3DAB/etc./etc.
From: rtoplus [EMAIL PROTECTED]
Date: 2005/07/08 Fri PM 02:09:19 GMT
To:
At 04:08 PM 7/8/2005 +, you wrote:
Why would present any more problems on GMRS then with the ARS. If you
don't want unauthoriced (unlicensed) users you don't have to connect your
radio/repeater to a computer.
---Not to get into a pissing contest over which VOIP system is the best
but but the
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
Why would present any more problems on GMRS then with the ARS. If
you don't want unauthoriced (unlicensed) users you don't have to
connect your radio/repeater to a computer.
Doug N3DAB/etc./etc.
My problem lies with the
Let me also state that I have no clue of how the client/server
software or its controls (or echolink or others for that matter)
operate, so some of my fears may be over blown.
Bob, GMRS WPVV845, Amateur KG4WAD, LMRS WPXC892
Yahoo! Groups Links
* To visit your group on the web, go to:
This discussion might be better served by setting up another yahoo gmrs rptr.
owner user group. and follwing up there. Most amatuers (excpt those who have
worked in commercial radio shops etc.) don't know anything about GMRS. Maybe
Kevin could set up a sub group BBD or this, if he is
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
This discussion might be better served by setting up another yahoo
gmrs rptr. owner user group. and follwing up there. Most amatuers
(excpt those who have worked in commercial radio shops etc.) don't
know anything about GMRS.
I thought it was just that one guy in MI. Is he not the PSRG?
[EMAIL PROTECTED] wrote:
Interesting!! Please cite the reflecter/web site/address where you saw this
info posted. I would like to follow up on this with the PRSG for their
opinion.
Doug N3DAB/etc./etc.
From: rtoplus [EMAIL
Well here is the final results of what I have done this morning, and listening to the aircraft band, I have not heard anything come back as of yet. I reduced the duplexers to 4 cans rather than 6, with 140 watts into the duplexer, I am getting 105 watts back out the antenna port. No decense
--- In Repeater-Builder@yahoogroups.com, Ronny Julian [EMAIL PROTECTED]
wrote:
I thought it was just that one guy in MI. Is he not the PSRG?
Hi Ronny
Yes and no. Corwin Moore is the PRSG and says that there
are associates but refuses to say who they are/were.
Bob, GMRS WPVV845,
At 12:12 PM 7/8/2005, Mathew Quaife wrote:
Well here is the final results of what I have done this morning, and
listening to the aircraft band, I have not heard anything come back
as of yet. I reduced the duplexers to 4 cans rather than 6, with
140 watts into the duplexer, I am getting 105
That's not my call, but i'll defer also after this message until some one
clarifies the situation. Looked at the website you provided ( somewhere in
northern Califonia I think) and it looks like it is being set up with similar
protocols to Echolink/IRLP. Might not be as big a problem as you
You're talking about Corwin Moore in Ann Arbor. He's had his foot in GMRS since
the late 70's.
Doug N3DAB
From: Ronny Julian [EMAIL PROTECTED]
Date: 2005/07/08 Fri PM 04:42:53 GMT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] GMRS and VOIP
I thought it was just
Steve,
A 500 kc split shouldn't be a problem. You will need 4 filters in each leg
for 100W TPO. I did use a different method rather than making a box to
solder to the top of the heliax. Details here.. as well as links to
additional info.
At 7/7/2005 01:40 PM, you wrote:
I'm going to do the process of elimation again tomorrow. I did remove the
amp, however I did not bypass the duplexer's, and with just the exciter at
5 watts, I don't get anything, and out the duplexer is right about 3
watts, so hard to see anything. As for
At 7/8/2005 06:47 AM, you wrote:
If I'm to understand, would this cavity betuned to notch the 132.950 Mhz
frequecny?
No, the pass cavity would be tuned to 145.41 MHz. 133 MHz is so far away
from 145.41 that the pass cavity will have sufficient rejection at 133.
Whatever it is that is
At 7/8/2005 08:08 AM, you wrote:
Can you put a 1DB or 3DB pad in place between the TX and the
cans? Might be hard to find one at that power level, other than a
long hunk of coax. With a 3dB pad in, I would expect any reactive
impedances on the ends to be less interactive, and if this cleans it
Mathew you clearly have an interesting problem and
I believe we are all waiting to see what is causing your problem. I'm sure
that Dave will be able to help you solve this.
Mike/K1EG
- Original Message -
From:
Mathew Quaife
To: Repeater-Builder@yahoogroups.com
Glenn, I need four of the 247 ohm and eight of the 61 ohm. This is a
Texscan attenuator, and the 20db sections.
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, Glenn Little WB4UIV
[EMAIL PROTECTED] wrote:
Laryn
How many of each do you need and what size are they? What attenuator
are
At 7/8/2005 08:45 AM, you wrote:
Typically to say, there is nothing in this area as far as repeaters, a few
on 460 Mhz and one on VHF at 158 Mhz, other than the two cell towers more
than 5 miles away, that is about it.
The 2 vs. 3 cans on the TX side of a 2 meter duplexer has been extensively
At 02:01 PM 7/8/2005, Bob Dengler wrote:
At 7/8/2005 08:45 AM, you wrote:
Typically to say, there is nothing in this area as far as repeaters, a few
on 460 Mhz and one on VHF at 158 Mhz, other than the two cell towers more
than 5 miles away, that is about it.
The 2 vs. 3 cans on the TX side of
Best bring the biggest hammer that you have. It's back at it. There has got to be something near here that is mixing. All morning it has been clean and now it's back to it's old tricks.
Mathew
Dave VanHorn [EMAIL PROTECTED] wrote:
At 01:38 PM 7/8/2005, Mike/k1eg wrote:
Mathew you clearly have
Me Too! I think this one has gone well beyond my head. I thought I had it, but it went way out to left field again.
Mathew
Mike/k1eg [EMAIL PROTECTED] wrote:
Mathew you clearly have an interesting problem and I believe we are all waiting to see what is causing your problem. I'm sure that
Is heat an issue?
I recall once when I lived in the Piedmont of NC that a large
university hospital's paging transmitter would go wild with spurs in
the summer but only when someone closed the equipment room door and
upset the ventilation.
When overheated, it would throw out spurs heard
Bob Dengler wrote:
At 7/8/2005 08:08 AM, you wrote:
Can you put a 1DB or 3DB pad in place between the TX and the
cans? Might be hard to find one at that power level, other than a
long hunk of coax. With a 3dB pad in, I would expect any reactive
impedances on the ends to be less interactive,
I personally have bean using EQSO and a remote base on my GMRS system on and
off since 2.4 gig came out because the current rules don`t prohibit it the
OLD rules say the fcc wont issue no new pairs of freqs for linking so you
buy a belkin router that routs or acts as an accesspoint put a
Well, after looking a little bit at the property, I decided the cost
of an appraiser plus the property was a little extreme--the appraiser
alone wanted $800-$1000. I called the appraiser and told him thanks
but no thanks. I then called the land agent and explained the
situation to him and
At 7/8/2005 12:21 PM, you wrote:
Best bring the biggest hammer that you have. It's back at it. There has
got to be something near here that is mixing. All morning it has been
clean and now it's back to it's old tricks.
Mathew
I say throw an isolator on the amp output. This is standard
Our local club has been running a 10 Yausu 2410 2 meter
repeater for many years. It is run through a Wacom wp-641 4 can
duplexer. Great results from this unit and it hears excellentWe
recently aquired a new vertex vxr-7000 do to some really nice friends
locally. In hooking up the
All;
I'm getting ready to do a repeater rebuild, in which I'll be
installing a TE Systems 1452RH power amp driven by a 1405S amp (driven
in turn by a GE MastrII exciter).
Problem is, the club doesn't have the tech docs and I really don't
want to just jump in blindly and start tweaking things to
--- Brian [EMAIL PROTECTED] wrote:
Our local club has been running a 10 Yausu 2410 2
meter
repeater for many years. It is run through a Wacom
wp-641 4 can
duplexer. Great results from this unit and it hears
excellentWe
recently aquired a new vertex vxr-7000 do to some
Is the TE 1452RH a repeater amplifier (as in 100% duty cycle at rated
400W output??)
James
Tom Swisher WA8PYR wrote:
All;
I'm getting ready to do a repeater rebuild, in which I'll be
installing a TE Systems 1452RH power amp driven by a 1405S amp (driven
in turn by a GE MastrII exciter).
I occasionally run across a piece of 6 broadcast transmission line, like used
on high power TV and FM broadcast stations. Have you ever tried this for a
duplexer?
73, Joe, K1ike
Yahoo! Groups Links
* To visit your group on the web, go to:
By chance would anyone have a owner/service manual for the Standard
RPT-10 Repeater and the Standard RPA10-150 Amplifier, or know the
specs on them. A copy of the manual would be excellent or a pdf file
would be sweet as well. Thanks.
Mathew
Yahoo! Groups Links
* To visit your
Brian,
I've used the WACom 4 cavity duplexers with 100 watts and no problem...no
desense.
The 7000 has a spurious spec of 85 db or better, but I don't believe much
the foreign companies say. With the Yeasu 5000 they say 50 watts, but for
continuous duty must lower to 15 watts. This is in their
Well I think with Dave's knowledge and equipment, he might be able to see what is going on. I'm certain he will find a number of my mistakes as I call them. I'm a tinker with a dangerous plan. I've talked with the EE Spectrum engineer at the aviation department, he seems to think I am riding
At 07:18 PM 7/8/2005 -0400, you wrote:
The 7000 has a spurious spec of 85 db or better, but I don't believe much
the foreign companies say.
---It's not spurs that are necessarily the problem. It's wideband
garbaaage, otherwise known as plain ol' wideband noise. Solid state
exciters/amps
James,
I don't think so, these amps came out of paging service which means they
were probably rated at 250 watts. But realize I don't have the
documentation. They do seem to work well though.
Does anyone out there have any DB Products 800 MHz PA's that they would like
to get rid of?
Paul
Steve.. he seems oh so eager. Be really sure of why he is so eager to sell
with no apprasial.
Have you attempted to contact other apprasiers for a lower quote ? One VERY
important thing
to look into is an Enviromental Study. With many of the ATS Microwave Tower
Site sales (they had
bought them
Hey Mathew I know it must be frustrating for you
but you know there is something you could be doing to help Dave
out.
1) Track the times it does this. Look for a
pattern.
2) Record the temperature at the site, especially
when it acts up. Both inside and outside temp and is the sun
A good point It might be money well spent to consult a lawyer and
perhaps set up a LLC (limited liability corp) to own the property
(while you own the LLC).
This would limit your liability in case of a scenario such as Rich
mentions.
You might
At 01:15 AM 7/9/2005 -, you wrote:
A good point It might be money well spent to consult a lawyer and
perhaps set up a LLC (limited liability corp) to own the property
(while you own the LLC).
---An LLC isn't a corporation. It's the same as
Thanks Eric, well the start over idea was a bad idea, got alot invested in this. As my mom always taught me, if I give up, she will pull all my hair out. Yes this is one that is very frustrating, not only to me, but to them pilots in the sky. I must admit, they are more than fair people, to my
Hi Mike, thanks for the tips, I will gather this up. I have found that if I turn the power way down, it is not as bad. Someone had mentioned to me that my power supply could be acting up, although it is only drawing 22 amps on a 70 amp power supply, I suppose there could be an issue there. As
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