Anybody need the following Icoms?
Mastr II 5C 147.795 RX
Exec II 433.100 TX
Exec II 433.150 RX
Exec II 433.150 TX
Contact me off list.
Thanks,
Dwayne Kincaid
WD8OYG
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
*
The Icoms are taken.
tftbw
Dwayne Kincaid
WD8OYG
--- In Repeater-Builder@yahoogroups.com, ldgelectronics
[EMAIL PROTECTED] wrote:
Anybody need the following Icoms?
Mastr II 5C 147.795 RX
Exec II 433.100 TX
Exec II 433.150 RX
Exec II 433.150 TX
Contact me off list.
Thanks
Freddy,
I have a couple of spare sets of Sinclair Q202Gs. I was just getting
ready to put one of them on e-bay.
Depending on the isolation needed, they may work.
Dwayne Kincaid
WD8OYG
Hi Everyone I am in need of a set of BP BR VHF duplexers.
Prefer a set of Wacom 641's But e-mail me
Freddy,
I have a couple of spare sets of Sinclair Q202Gs. I was just getting
ready to put one of them on e-bay.
Depending on the isolation needed, they may work.
Dwayne Kincaid
WD8OYG
Hi Everyone I am in need of a set of BP BR VHF duplexers.
Prefer a set of Wacom 641's But e-mail me
Mathew,
The RVS-8 does not provide a voltage output. There are two ways to
connect it. The easiest is with the relay. It's a SPDT relay with the
three contact connections coming out the back to the terminal.
The NO is normally open with the Common and the NC is normally
closed with the
Put a scope on the audio output of the voter and see if the tones are
getting through.
If not, put the scope on the audio input of one of the receivers that
you are testing and see if the tones are there.
If not, go back to the remote receiver and put a scope on the receiver
to see if the
Hi,
I have this good sized rack mount isolator that either finds a good
home or ends up in the land fill. I don't know much about it except it
came off a Motorola VHF paging system. The system was solid state, but
the PA was tube and ran about 150 watts.
It has a label that says RJ
I have a board that is 90% of that. It was meant to be used with an
off board pot and does not have the .05 uF / 10 ohm network.
This was for another project that never took off. I have hundreds of
them that you can have just for the shipping cost. Let's say $1 for 5
or less. E-mail me
Hi folks,
I have three used CAT-300DX controllers for sale that are excess.
They are all slightly different, but are in perfect working order.
Unit #1 is Rev C board and has V2.05 firmware, $200.
Unit #2 is Rev B board with V2.07 firmware. This one has the upgraded
phone jack with the phone
Hi folks. More cleaning and more (mostly) free stuff. Contact me off
the list to make arrangements.
Three UHF (440 to 470 MHz) band pass cavity. About 19 high and 5.5
diameter. UHF connectors, no adjustments except pass freq. Looks to
have a about 0.75 db loss per can. One can has a split at
Thanks for all the responses, everything is spoken for.
Dwayne Kincaid
WD8OYG
[EMAIL PROTECTED] wrote:
Hi folks. More cleaning and more (mostly) free stuff. Contact me
off
the list to make arrangements.
Three UHF (440 to 470 MHz) band pass cavity. About 19 high and
5.5
diameter. UHF
This seems like a perplexing problem. Maybe someone can point me in
the right direction.
I have a TPD 1554, 4-can VHF duplexer. It provides about 77 db of
isolation with 1.4 db of loss. This is just about what the spec says,
so that all looks good.
I happen to have some extra PD-1173 VHF band
filter to the
duplexer.
Bob M.
==
--- ldgelectronics [EMAIL PROTECTED]
wrote:
This seems like a perplexing problem. Maybe someone
can point me in
the right direction.
I have a TPD 1554, 4-can VHF duplexer. It provides
about 77 db of
isolation with 1.4 db of loss
Herold,
I agree that it would be a ton easier with a network analyzer.
What happened in my case was the loop in the PD-1173 can was about
8.5 inches long (8.5 down and 8.5 back up). It seemed that was way
longer as compared to what was seen in other bandpass cans. After
reading the theory
I really would not wish this dog on anyone, but someone out there may
need some spare parts. This is a Kantronics repeater controller from
the early 90's. It's got a 72 pin header on it (what were they
thinking?)and a sticker that says 320 01011. No manual.
I also have a WB2WHC Audio Noise
Hello All,
It's been a while since the last free stuff listing, so here is a few
more. These are all free, just pay shipping. Checks, paypal, postage
stamps, all accepted. Limit one per person. Reply off list.
GE tone board with red reed module on 71.9. Includes cable. This is
for Mastr II
That was fast! Everything except the Exec II tone board with the reed
tone module is spoken for.
Hello All,
It's been a while since the last free stuff listing, so here is a
few
more. These are all free, just pay shipping. Checks, paypal,
postage
stamps, all accepted. Limit one per
Hi all,
I've been working on this problem for a while and have not come up
with any good solutions. So I'm hoping to find someone that has been
there, done that with some suggestions.
The issue is that I want to add a same-band remote base to an
existing repeater. The main problem is that the
Thanks guy for all of the answers. This has really given me something
to think about.
Let me start by acknowledging all the obvious typos that have already
been fixed (darn and I proofed that twice). Yes, the tower spacing is
vertical (not horizontal), yes the tx/rx on the repeater is 443.3
On the cheap side, we just built a 440 repeater for about $500. The
tower space/hardline/antenna were already available, so we just had
to build the repeater and plug it in.
The repeater was a GE-Exec II base station off from e-bay for $100.
The built in power supply can run the unit at about
Hi all,
Anyone need a Selectone ST-32 DC Line Terminator? It looks to be NOS,
still in the bag.
Dwayne Kincaid
WD8OYG
Hi,
I need a few VHF Exec II exciters (same as VHF MVP exciters) and can
trade with Exec II UHF exciters, UHF receivers, VHF receivers or just
plain purchase.
Thanks,
Dwayne Kincaid
WD8OYG
Thanks to all that replied. I'm all set now. This is a great group!
Dwayne Kincaid
WD8OYG
Hi,
I need a few VHF Exec II exciters (same as VHF MVP exciters) and can
trade with Exec II UHF exciters, UHF receivers, VHF receivers or just
plain purchase.
Thanks,
Dwayne Kincaid
WD8OYG
Here is the link: http://www.expresspcb.com/
Ditto everything Doug says about it. The built-in tutorial is also
nice.
Dwayne Kincaid
WD8OYG
Kieht;
For non production, amateur, and student use, Express PCB
and PCB Express offer free cad programs to do boards they support
Hi all,
We've added a preamp to our local repeater and found that it had too
much gain. It started picking up lots of garbage. Reducing the gain
by about 6db seems to put it in a good operating place.
We also found that by putting the 6db attenuator on the input of the
preamp (right after
) and get steeper skirts. Tell me a
little about
the system, antenna, feedline, duplexer, jumpers, the repeater
itself?
Thanks, Steve NU5D
On 3/21/07, ldgelectronics [EMAIL PROTECTED] wrote:
Hi all,
We've added a preamp to our local repeater and found that it had
too
much gain
Ken, thanks for the input.
So if I were to adjust the band pass can to have 3 db loss (it's at
0.5 db right now) and steeper skirts, it would raise the noise figure
about 2.5 db as well.
That seemed like a good trick at first, but still raises the noise
figure.
Obviously lower noise figure
Darn, I meant to put that in before. I have severaldifferent units. I'd
like to use an ARR with 15 db gain (1 db NF), but we also have a couple
of older Lunar with about 15 db gain and some stock GE units with about
10 db. The Angle is on the list to try.
One of the systems we just took out
the
cavity. Play with the degree of coupling and insertion loss till
you get
what you are looking for.
Best 73, Steve NU5D
RG-400 or LMR 400? sb
On 3/21/07, ldgelectronics [EMAIL PROTECTED] wrote:
Steve,
It's on 2M, single Station Master antenna with about 400 feet of
7/8
The garbage was pops, static, crackling on weak user signals. There
was also some intermod that would drop the receiver on all but the
strongest users.
The distant users were able to go farther, but the garbage noise made
it more difficult to actually use.
Dwayne Kincaid
WD8OYG
Elaborate on
Gary,
Yes, Band Pass for the extra cans.
Did you mean to say BP cans and not BP/BR for the extra cans?
BP/BR cans provide little pass band attenuation.
73
Gary K4FMX
Gary,
That is very good information.
We're going back up to the site today and will try that method.
Hook your signal generator up to your system at the antenna port
and measure
receiver sensitivity with and without the preamp. Then with the
preamp in
circuit start adding attenuation
Never noticed. We're supposed to get some rain later, I'll check then.
Sounds like you may have an antenna/loose hardware in near field of
antenna
problem, which could also generate passive IMD. Does it get better
when
it's raining?
Bob NO6B
Bob,
How would we know if the preamp is nonlinear or not?
If the ARR preamp is nonlinear with a pass can ahead of it, it's
probably
oscillating. I recommend replacing it with an Angle Linear preamp
(http://www.anglelinear.com). Chip's preamps are guaranteed to be
unconditionally
Bob,
Great info. I'll check that too on the next trip.
For right now, we are using a stock GE pre with about 10 db gain and
no attenuators.
There has been enough great feedback from the group that will give me
several hours of testing on the next trip. There are all kinds of
things to try.
Had a good rain this evening. No change at all in the system.
Dwayne WD8OYG
Sounds like you may have an antenna/loose hardware in near field of
antenna
problem, which could also generate passive IMD. Does it get better
when
it's raining?
Bob NO6B
Had a good rain this evening. No change at all in the system.
Dwayne WD8OYG
Sounds like you may have an antenna/loose hardware in near field of
antenna
problem, which could also generate passive IMD. Does it get better
when
it's raining?
Bob NO6B
Wow, that was fast.
They are both spoken for. Thanks,
Dwayne Kincaid
Hi,
I've got a couple of the older Motorola test sets that need to find a
good home. These are S1056A. One has the interface cable and one has
the crystal set strip.
They go for about $10 on e-bay, so it's not
Gary,
Just a follow up to the preamp questions from last month.
Your advice was fantastic. We added attenuation right to the point
where the sensitivity started dropping off and it was perfect.
By putting in the attenuator, it actually increased the receive range
of the repeater by about 30%.
As a quick and dirty method, the radio horizon is:
Distance (in miles) = Square Root of (2 * height in feet).
Power and frequency do not really play that much into it. This has
been mentioned in many stories of a repeater running just on the
exciter and not many noticed. Once you get past the
As a quick and dirty method, the radio horizon (RH) is:
Distance (in miles) = Square Root of (2 * height in feet).
This equation is ok, but for a perfect spheer. Is a good place to
start. Here in FL where max altitude is about 330 ft ASL it works
pretty well although the lower the
Hello All,
I have a requirement to install a battery backup system at a local
ham repeater. It's a GE Mastr II running about 100 watts. With that
much RF power, a couple of 100 AH batteries is only going to last a
few hours.
My first thought was to add a second lower power RF amp (something
Ed,
That won't work for us as we only have two stages with the GE
equipment, 250 mW from the exciter and 100 watts from the PA.
I'm sure there is a way to split the driver from the final, but
that's really beyond the scope of this project.
Dwayne Kincaid
WD8OYG
A (hopefully) better method
: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Ed Yoho
Sent: Tuesday, October 16, 2007 6:37 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Norton AntiSpam] Re: [Repeater-Builder] Reducing power
out when on
battery backup.
ldgelectronics wrote:
Hello All,
I
to 4 Amp.
73, ron, n9ee/r
From: Nate Duehr [EMAIL PROTECTED]
Date: 2007/10/17 Wed PM 07:24:39 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Reducing power out when on battery
backup.
On Oct 16, 2007, at 10:10 PM, ldgelectronics wrote
Nothing like spending $200 to fix a $2 problem.
Go to www.mouser.com and search for L4940V12. The drop out voltage at
a half amp is 0.2 volts. This means you just need to supply 12.2
volts or higher to get regulated 12.0 volts to your controller.
Dwayne Kincaid
WD8OYG
Thanks, that does
Charles,
We would tell them that you are going to use a side arm bracket for a
and antenna that is similar to the DB314 and then put a DB408 pointing
up on the top and a DB264 pointing down (or similar antennas). Use a RX-
TX XBC-020-80 to couple the two antennas at the top of the tower and
Didn't work for me. There are two EchoLink nodes near me and it
didn't find either one.
I'm sure that it works well for some areas.
Dwayne Kincaid
WD8OYG
I did try it with Echolink, Bob!! It worked very well to find
nodes in a
specified area using this link on the Echolink web site:
For our area, John hit it on the head. We have a linked system with
about 7 or 8 repeaters across several counties and the guys on the
south repeaters would pretty much only talk to others in south. The
guys in the north only talked to the people in the north.
We polled a few in each area and
Not to fuel a debate over the usefulness of a disable switch (that's
really only in the mind of the switch operator), but I have one 10V
card that I modified and only use it when building a repeater on the
bench.
Once it goes in the field, I put a regular (non modified) card in
there. This is
Not to fuel a debate over the usefulness of a disable switch (that's
really only in the mind of the switch operator), but I have one 10V
card that I modified and only use it when building a repeater on the
bench.
Once it goes in the field, I put a regular (non modified) card in
there. This is
Darn, I didn't know that was you I was bidding against for that VHF
duplexer. I'll be more careful next time.
If it doesn't work for the APRS project and you have not found one,
I'll ship it to you.
Dwayne
WD8OYG
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED]
Nate is correct in that it depends on where it's going. In general, the
transmitter will tune up anywhere in the 2M band.
For me, if the 66 receiver is on 146 or 147, then it generally works
with no mods. If the RX is in the 144 or 145 range, then I get high
side injection crystals (when
Mark,
There have been some good suggestions. However, there are two issues
that you need to watch carefully for remote battery backup operation.
The first, as some have mentioned, is the charge current if the
battery is run down and AC power comes back.
For example, if you just tie a
Keith,
Those are all good ideas.
Don't forget there are 10M repeaters outside of the US also use the
same bandplan. Instead or writing to the coordinators, write to the
repeater owners and try to get everyone on the same page.
Just crunching some numbers. There are about 100 10M repeaters
Jay is correct. A 25 foot length of LDF4 (1/2 Anrdew) would be good
and have about 0.4 db loss. It's also pretty good for felxability. I
just picked Andrew since I had that spec sheet handy. Other brands
would also be good.
Most adpaters will be in the 0.2 db loss area at 450 MHz. Obviously
Eric,
Being the cheap hams that we are (I am at least), couldn't you just
get 5 Tees for a couple bucks a piece and have your favorite two-way
shop make up four 12.5 inch cables from RG-214 for about $15 each?
Total around $75.
I've had cables made in our area for about that price. Obviously,
Anyone know the device number of the gaasfet (or whatever type it is)
in the P-145 model?
Inherited one with -12 db gain. Looks easy enough to fix.
Thanks,
Dwayne Kincaid
WD8OYG
.
73, Joe, K1ike
ldgelectronics wrote:
Anyone know the device number of the gaasfet (or whatever type it
is)
in the P-145 model?
Inherited one with -12 db gain. Looks easy enough to fix.
Thanks,
Dwayne Kincaid
WD8OYG
Your post is interesting as we have not had a good LMR debate in a
while. Most are going to say avoid it, some will say that there is no
problem with it.
I'm in the middle. At my house or shop, I use it all the time. I use
it for testing repeaters, feed line to the antenna or anyplace I can
Does anyone need a Weinschel 45-10-33 attenuator housing for free? It
does not have any resistor elements in it.
Not sure why I still have it, so it's going in the dumpster unless
someone has a need for it.
Dwayne Kincaid
WD8OYG
Taken.
[EMAIL PROTECTED] wrote:
Does anyone need a Weinschel 45-10-33 attenuator housing for free? It
does not have any resistor elements in it.
Not sure why I still have it, so it's going in the dumpster unless
someone has a need for it.
Dwayne Kincaid
WD8OYG
Hi all,
I have a couple of duplexer cabinets if anyone is looking for those. No
duplexer, just the cabinet they go in. Sinclair 202 and DB 4060 types
are avaialble. Contact me off list if interested.
Dwayne Kincaid
WD8OYG
Hi all,
I have a couple of duplexer cabinets if anyone is looking for those. No
duplexer, just the cabinet they go in. Sinclair 202 and DB 4060 types
are avaialble. Contact me off list if interested.
Dwayne Kincaid
WD8OYG
All the cabinets are spoken for. I may have a few more next month.
Dwayne Kincaid
WD8OYG
Southern Maryland.
At 02:13 AM 2/10/2008, you wrote:
At 12:32 PM 02/09/08, you wrote:
Hi all,
I have a couple of duplexer cabinets if anyone is looking for
those. No
duplexer, just the
Hi,
I've got two more of the DB duplexer cabinets (no duplexers inside)
that need a good home. They are 20w x 19d x 34h. Normally, there is a
DB-4060 duplexer in there.
Total cost, including UPS shipping, is $50 for east coast, $75 for west
coast. They weigh about 70 pounds. Paypal or check
That's not much information. Please explain how that would be used.
Dwayne Kincaid
WD8OYG
--- In Repeater-Builder@yahoogroups.com, Jay Urish [EMAIL PROTECTED] wrote:
This is where you use a combiner...
..
A combiner with give you several rx and tx ports..
ldgelectronics wrote:
That's not much information. Please explain how that would be
used.
Dwayne Kincaid
WD8OYG
--- In Repeater-Builder@yahoogroups.com
mailto:Repeater-Builder%40yahoogroups.com, Jay Urish jay@
wrote
Ouch, you forgot to say that you had just put your flame retardant suit
on (you may need it).
In a perfect world, you are correct. Unfortunatly, I don't think anyone
has seen that yet.
Just for one example (and I'm sure there will be dozens more here
shortly), our local coordinting body was
My e-bay popped up today saying that sellers could no longer leave
negative or neutral feedback. No need to wait the 30 days.
However, just as others have mentioned their preference, I like to
resolve with communication rather than duke it out with feedback and
filing claims.
Dwayne Kincaid
I get nearly all of my custom cables from The RF Connection in
Gaithersburg, MD; http://www.therfc.com/
A four cavity duplexer harness was under $100 the last time I got one.
Dwayne Kincaid
WD8OYG
Tessco will
- Original Message -
From: Andreas Papagapiou
To:
Mick,
You are in luck. I was just cleaning a small corner of the radio shed
out and was going to pitch an Exec II receiver already crystaled and
tuned on 52.190. It would work well for your repeater and cost nothing
but shipping.
Contact me off the list if you want it.
Dwayne Kincaid
WD8OYG
Lou,
There are 220 duplexers on e-bay nearly all the time. This week, I've
only seen one. Every week or so, a few pop up (this must be the off week).
Dwayne Kincaid
WD8OYG
Hello,
I am looking to set up a 1.25m repeater, and am looking for opinions on
what radios are the simplest and
Just going through a junk drawer and found three of the older tone
decoders for Mastr II receivers. These have the little tone plug in
unit that determine the tone frequency (no dip switch).
Anyway, they are free to anyone that wants them, just pay for shipping
from 20685 (probably about $5).
Wow! That was fast. They are all spoken for.
Dwayne Kincaid
WD8OYG
Just going through a junk drawer and found three of the older tone
decoders for Mastr II receivers. These have the little tone plug in
unit that determine the tone frequency (no dip switch).
Anyway, they are free to anyone
I hate to keep posting about these, but now they are available again.
It seems I should have said about $5 each for shipping. If you want
more than one, then it weighs more and therefore will cost more than
$5 to ship. If you want to pick them up in the DC area, then they are
completely free.
Mike,
I have the same general question about repeater audio. What does it
really supposed to sound like? In my systems, I try to make it so the
repeater output sounds like the repeater input. In other words, it's
close what you would hear if you were simplex. For me, it doesn't
sound like CAT or
Hello all,
I have a bunch of UHF crystals on 449.225 and 444.225 both TX and RX
on each frequency. This was part of a Hub linking system that got too
big and had to move to another frequency.
Some are in the GE Exec II elements and some are just the crystals.
Can also be used for GE Mastr II
Sold them all. Thanks guys!
Dwayne Kincaid
WD8OYG
Hello all,
I have a bunch of UHF crystals on 449.225 and 444.225 both TX and RX
on each frequency. This was part of a Hub linking system that got too
big and had to move to another frequency.
Some are in the GE Exec II elements and some
They are pretty good. The main market they are used in our area is
GMRS repeaters. I have two that I work with, one 50 watt and one 10
watt and they work decent. It's just a repeater with CW ID and a
multi-tone controller and does not do much else (don't need anything
more than that for GMRS).
Wazzu,
While it's probably not the best thing to do to run a 440 repeater off
a 2M antenna, I would not hesitate to use a 2M antenna for a 440 link
or remote base.
It saves me a bunch of stuff: tower space (or rent if it not your
tower), antenna, feedline, connectors, maintenance, and on and on.
Laryn,
Here is what we use in our area. It works very well.
www.n3px.com/modules.php?name=Newsfile=articlesid=18
Then click on adding a digipeater to an existing repeater. I thought this was
on the repeater builder site, but I could not find it today.
Dwayne Kincaid
WD8OYG
Hi all, this
It's slow, but it works. Maybe try again later.
-or- we could get the RB guys to put it on the RB site.
Dwayne
WD8OYG
I tried your link but could not get the web site got an error 404
I was looknig to do the same thing
Rick
va3rzs
On Wed, Jun 17, 2009 at 9:14 AM, ldgelectronics
Yeah, that's the prototype predecessor to the FT-2800. It was called the
MVP-2800!
Sorry about the typo. Someone will fix that in the next year or two.
Dwayne
WD8OYG
doesn't take a minute to 'think about it' either -- it just comes
back, bam, 403.
73 Paul KC0HST
- Original Message -
From: ldgelectronics ldgya...@...
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, June 17, 2009 2:36 PM
Subject: [Repeater-Builder] Re: Simplex
Jason,
There a bunch of products on the market that will do what you need. Most of the
time they are called diplexers, but sometimes they are named as duplexers.
For the best results you would want a combining unit with the lowest loss (less
than 0.5 db). Probably the best ones around are
Hi Gilles,
I have some tone boards you can have for the cost of shipping. Do you need
encode or decode?
Dwayne Kincaid
WD8OYG
Hi All,
I am new to this group and I was wondering if someone could help us out, we
are an amateur radio club and our UHF repeater died so we are looking for
87 matches
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