If all you are wanting to add is a second receiver, take a look at this
simple 2ch voter:
http://www.repeater-builder.com/projects/wb2whc.html
While not as sophisticated as other voters, it doesn't carry their price tag
either.
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Rd
Hello Repeater Owners, I am cleaning out the storage bld. and have a small
quantity of DB Products (Not Andrew) NOS DB 408 Antenna Harnesses for sale.
These are the 450-470 Split and New in the Box.
They terminate in to an N Male connector.
The tag says Part # 12070, DB 408 B Harness HK 450-470
Email me direct Romy and I'll send you a copy.
cheers,
skipp
skipp025 at yahoo.com
Romy ve7...@... wrote:
I am in the process of building a repeater using two M120 radios. I would
like to build my own interface cable and looking for a schematic diagram.
What I need to know is the
I had this voter in service for years and worked quite well. I even expanded
it by using a UHF radio in scan for muliple receivers at locations spaced about
20 miles away from each other.
Mark KS4VT
--- In Repeater-Builder@yahoogroups.com, Scott Zimmerman n3...@... wrote:
If all you are
While were talking about remote receivers- I have a question for the group.
What do you use for remote receivers that scan? I have a system with multiple
talkouts and there are a few potential sites for extra receivers that could
cover both talkouts. I was thinking about a Maxtrac finding
At 11:55 AM 04/15/09, you wrote:
(big chunk cut out)
For the system I am building (my 440 machine), the county radio system is
allowing me to use up to 3 voice channels on of their microwave backbone at
no cost to me. So all I need to acquire/install/maintain are the receiver
units at all the
True. I had forgotten that one. It was a PAIN to work on as
it was positive ground internally.
The same hardware was in the firetower repeater.
Mike
At 05:11 PM 04/15/09, you wrote:
Minor technicality - Wasn't the mobile radio that was made
from HT-200 boards the first solid state Motorola
At 06:14 AM 04/15/09, you wrote:
Mike Morris WA6ILQ wrote:
The high power 74MST was a 4 freq UHF MOTRAN
(and used a 28volt PA deck run by a 12-to-28 transistorized
switching power supply in the center section) along with
the receive F3 and F4 channel elements.
I don't remember ever
At 10:45 AM 04/15/09, you wrote:
Lance, Mark, Cort, Butch, Bob, Chris, and others,
Thanks for the good advice and quick response. I will follow up on the
suggestions, and get an idea of the cost.
It hadn't occurred to me that I would need a voter. With only this one
remote receiver, I thought
And once you do get a voter you can leave the unique PLs in
place as a diagnostic system. It's mentioned here:
http://www.repeater-builder.com/tech-info/votingcomparators.html
Mike WA6ILQ
At 10:50 AM 04/15/09, you wrote:
Many systems will use a different PL for different receive sites to
get
We have an R1225 in this configuration as a remote receiver - set to zero
hang time and Strip PL on CWID to prevent it from retransmitting across
the repeater... Works well.
On Thu, Apr 16, 2009 at 4:40 AM, Mike Morris WA6ILQ wa6...@gmail.comwrote:
And once you do get a voter you can leave
Yep -- I also love the CWID interrupt feature so it's never heard over
the link. Do you decode a PL/DPL on the R1225 and re-encode, or run
tones through with it set to flat audio?
On Apr 16, 2009, at 1:42 PM, AJ wrote:
We have an R1225 in this configuration as a remote receiver - set to
In it's current configuration our R1225 strips the PL on the receiver and
re-encodes on the transmitter side with a different tone on the link.
On Thu, Apr 16, 2009 at 12:56 PM, Cort Buffington c...@lawrence-ks.orgwrote:
Yep -- I also love the CWID interrupt feature so it's never heard over
I've been switching back and forth between flat audio on the remote
R1225 and decoding the original PL on the link receiver, and the de-
code, re-encode method. I think I like the flat audio on the remote
better, but that makes it CSQ, so I keep the squelch a bit tighter AND
it's not a a
In the UK, Belgium and the Netherlands, CTCSS tones are assigned per
geographical area. For example, in the South of the Netherlands,
(where my machines are located), CTCSS tone is standardized to 71.9 Hz.
My question: What mechanism do repeaters in Germany use?
Is there a geographical
I would think so as here in Canada we have the some thing in my area its
162.2
Rick
On Thu, Apr 16, 2009 at 3:38 PM, Geert Jan de Groot pe1...@xs4all.nlwrote:
In the UK, Belgium and the Netherlands, CTCSS tones are assigned per
geographical area. For example, in the South of the
Yeah-the SECOND iteration of the Industrial Disaster, er, Dispatcher.
The Ford plants here had a bunch of them on tow motors. ugh.
The FIRST ones were germanium PNP's in the rx, and mostly quick-heat
filament tubes in the tx. For VHF, either .8W or 5W with 2E24 final.
'Key the mic, count to 3,
Can anyone tell me how you can convert a TKR-750/850 U.S. model to be used for
amateur radio frequency? I see that people have. There is a European model that
includes amatuer bands, but can't get it here in the U.S. Thanks!
I am also working toward a multiple receiver voted system and have a
question. I was reading
http://www.repeater-builder.com/tech-info/votingcomparators.html
and wondering about how to implement a site suicide command where
power is disconnected from the entire remote package requiring a
trip
needs to be
kept as low as possible. Any suggestions on how to implement a
suicide command for such a remote package? I can think of a couple
ways to do it but usually someone here has better ideas than mine!
73,
Paul N1BUG
__ NOD32 4013 (20090416) Information
At 01:40 PM 4/16/2009, ptt_pupil wrote:
Can anyone tell me how you can convert a TKR-750/850 U.S. model to
be used for amateur radio frequency? I see that people have. There
is a European model that includes amatuer bands, but can't get it
here in the U.S. Thanks!
---No conversion necessary.
RAMSEY KITS has a unit that is supposed to work from commands via your
telephone touch pad. It’s about $39. You call the unit up, touch the
phone keys, and the dtmf commands can turn on and off devices plugged
into it. I wonder could this be converted to work on the input of a
recvr,
Look at the TKR-751 and TKR-851 US available Have a 751 on 146.xxx factory
order
John
- Original Message -
From: Ken Arck
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, April 16, 2009 5:39 PM
Subject: Re: [Repeater-Builder] Converting a TKR-750/850 for Amateur Usage
Ken,
How about the TKR-840? Any idea if that one will go down via the
software and tune without issues as well?
Adam N2ACF
Ken Arck wrote:
At 01:40 PM 4/16/2009, ptt_pupil wrote:
Can anyone tell me how you can convert a TKR-750/850 U.S. model to
be used for amateur radio frequency?
I am told they will someplace I have the info to do the software the
repeater will do it. great repeater as I have 10 in service at this time.
John
- Original Message -
From: Adam Feuer
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, April 16, 2009 5:55 PM
At 02:27 PM 04/16/09, you wrote:
I am also working toward a multiple receiver voted system and have a
question. I was reading
http://www.repeater-builder.com/tech-info/votingcomparators.html
and wondering about how to implement a site suicide command where
power is disconnected from the entire
At 02:55 PM 4/16/2009, Adam Feuer wrote:
Ken,
How about the TKR-840? Any idea if that one will go down via the
software and tune without issues as well?
---So will the 850 - the standard KPG-91D software will program it
and it tunes down to the ham band very easily. I have personally had
--- In Repeater-Builder@yahoogroups.com, Paul Kelley N1BUG
paul.kelley.n1...@... wrote:
and wondering about how to implement a site suicide command where
power is disconnected from the entire remote package requiring a
trip to the site to bring it back to life. I definitely want some
way
Paul,
A mechanical latching relay uses no power except when changing state, and could
be used to drop the power to the whole package.
Using some sort of crowbar to intentionally blow a fuse introduces new and
unpleasant failure modes.
73,
Paul, AE4KR
- Original Message -
From:
Today, I encountered a problem with a MaxTrac that I can only describe as
strange...
I was assisting Jim WA9FPT with getting his MaxTrac converted to operate in
the ham portion of the band. He has a DeskTrac similar to the one I own,
which was originally a trunked station. He had put
Today, I encountered a problem with a MaxTrac that I can only describe as
strange...
I was assisting Jim WA9FPT with getting his MaxTrac converted to operate in
the ham portion of the band. He has a DeskTrac similar to the one I own,
which was originally a trunked station. He had put
mine!
73,
Paul N1BUG
__ NOD32 4013 (20090416) Information __
This message was checked by NOD32 antivirus system.
http://www.eset.com
__ NOD32 4013 (20090416) Information __
This message was checked by NOD32 antivirus system.
http://www.eset.com
--- In Repeater-Builder@yahoogroups.com, Paul Kelley N1BUG
paul.kelley.n1...@... wrote:
For my application I'm wondering about how to interface the DTMF
decoder output to permanently kill power to a site. I'm thinking I
want to have it do something like deliberately blow a fuse... but
Also the 840 does not do tone and may only be the TX and RX never got one
have always stay away.
and yes max 5 watts also
- Original Message -
From: Ken Arck
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, April 16, 2009 6:13 PM
Subject: Re: [Repeater-Builder]
John,
The 751 and 851 are only 25watt repeaters. The 750 and 850 work just fine as
Ken said.
Mike
Colorado Telecom, L.L.C
Mike Mullarkey
6886 Sage Ave
Firestone, Co 80504
303-954-9695 Home
303-954-9693 Home Office Fax
303-718-8052 Cellular
_
From:
Adam,
I have one in ham but you need to hex edit the software. Not much fun.
Mike
Colorado Telecom, L.L.C
Mike Mullarkey
6886 Sage Ave
Firestone, Co 80504
303-954-9695 Home
303-954-9693 Home Office Fax
303-718-8052 Cellular
_
From: Repeater-Builder@yahoogroups.com
I am trying to key my MASTR II from my PC. Is there any reason I can't use
a 5v 1a relay connected to the serial port and the PTT line on the MASTR II
to do this?
Thanks,
Vern
KI4ONW
Paul, I have a question on this suicide control. Are you killing everything
thus no ability to revive the site without visiting it? Not withstanding I
would use a simple small repeater controler. Chose your poison there, but in
any case, there are some that give you a small amount of logic
Vern, If your relay coil doesn't draw very much current it probably would
work. I would say using a opto isolator or minumum a transistor switch would
be a more practical method. I use a simple 2n transitor to fire a MII for
echolink.
Randy
--- In Repeater-Builder@yahoogroups.com,
I have a limited number of Extender Cards for Motorola Service Monitors.
These are the 72-pin cards (36x2) for the receiver and synthesizer modules (and
maybe other modules in some units).
I have constructed these myself, and they have gold-plated contacts on the
socket, tinned contacts on the
Vern,
There isn't any reason that you can't do what you have indicated. But
there are a few things that you should consider.
Your serial port provides -12v to +12v, so you are likely to burn out
your 5v relay, which means you should use a 12v relay. Having said
that, if you had a 12v
Randy,
I will be using a small repeater controller. What I want is some way
to kill power to everything in the box... receiver, link
transmitter, controller, the whole works. This would be a last
resort in the event something fails in such a way that it is
critical to shut it down, at a time
Can someone Please put what this is in Layman Terms I have the Micor
Unified Chassis and I have a 2000C Ser Monitor What is this Card for ,
Sorry I just would like to know
Thanks Don KA9QJG
Mike, Paul, Mike, Martin, and others...
Thanks for the ideas. I will try out a couple of them and then make
a decision on exactly what method to go with. I had not thought of
using a latching relay. The idea of a husky relay or maybe a beefy
SCR to short the supply on the inboard side of a
I tried my normal echolink circuit but it won't kick the PTT on the MII.
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of wb8art
Sent: Thursday, April 16, 2009 7:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: MASTR II
Paul,
So your thinking of a seperate RX with a control to kill the link. That
with a decoder logic could drive the breaker to trip mentioned earlier.
Randy
--- In Repeater-Builder@yahoogroups.com, Paul Kelley N1BUG
paul.kelley.n1...@... wrote:
Randy,
I will be using a small
OK more information. When I connect the PTT line to my echolink circuit
which has a transistor on it, I can hear the relay click a little bit but
that is when echolink isn't keyed. When I key echolink I don't hear any
change in the relay and it doesn't kick the transmit. The echolink circuit
You may have a different radio in mind, because the Kenwood TKR-740 and -840
repeaters definitely do have built-in tone, and are full duplex. Very high
quality units.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
does the relay have a diode installed across the coil ?
is it the correct polarity ?
I know got a 751 set up for 146. by Kenwood systems and puts out 5 watts.
goes into a TPL amp 2 in 120 out set for about 100 watts and into a high end TX
RX dupplixer. 7/8 hard line up the tower to 200' and a DB 224 .
John
- Original Message -
From: Mike Mullarkey
To:
sorry yes we use the TKR-840 I was thinking of the TKR-830'sIt has been
one of those days.
We have been replacing our Micor repeaters with the TKR-840 so I should have
know better.
John
- Original Message -
From: Eric Lemmon
To: Repeater-Builder@yahoogroups.com
by the way any one in the Tampa bay area of Florida want any 460 to 470 Micors?
also Gatlinburg TN Area?
John
- Original Message -
From: Maire-Radios
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, April 16, 2009 10:46 PM
Subject: Re: [Repeater-Builder] Converting a
Has anyone converted the GE Master III 450-470 MHz split repeater down into
the ham band? I saw an article on Repeater Builder converting the lower
split up to a ham split, but nothing on the higher 450-470 split down.
--
James Adkins, KB0NHX
Adam Feuer wrote:
Ken,
How about the TKR-840? Any idea if that one will go down via the
software and tune without issues as well?
Adam N2ACF
Adam,
I and others are using the TKR-840s here in so-cal. The only down side
is the helicals are not narrow as you would normally find in an
Bump..
Can anyone help me with this?
--- In Repeater-Builder@yahoogroups.com, Albert hitekgearh...@... wrote:
I am in the market for two UHF amplifiers. Specifically, I would be
interested in two of the N1275A models if anyone has a couple. I did see one
on ebay but it was a little
Anybody have an idea of the noise to singal ratio for the GE Mastr II UHF
preamp?
I have heard they are quite noisy as compared with other preamps such as the
Advanced Research products.
Let me know. Brian, k5in
Brian, k5in
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