Re: [Repeater-Builder] very close frequencies seperation

[Gareth Bennett]

Ian, It sounds like you are building a back-back 
link?
 
What type of equipment are you proposing to 
utilise?
Is your linking site the only one with UHF equipment 
present?
Is site #2 line of sight and at what particular distance? ... 
Either way you wont need 25 Watts to link your repeaters, especially with yagis 
at your link site as you probably will be able to do this on about 1 watt and 
give you linking site receivers an easier time.
 
To recap,  What type of back to  back link gear 
(Especially Rx) are you planning to use?
            
    How busy is your proposed site?
       
     Whats the path like between your link site and either 
repeater?
 
This can easily be done.
 
_
 
Gareth Bennett
 
This e-mail is confidential, if you received this message in 
error, or youare not the intended recipient,please return it to the 
sender and destroy any copies.Thank you.

  - Original Message - 
  From: 
  Ian Wells 
  
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Tuesday, March 28, 2006 9:19 
  AM
  Subject: [Repeater-Builder] very close 
  frequencies seperation
  
  

  
 Hi guys .I am trying to receive 473.575mhz from a 25 watt 
repeater ,line of sight , 50kms away and and retransmitt it on 
473.200 at 25 watt on another site.The transmitt antenna is a 6db 
vertical ,9 meters above ground and the rx antenna is a 6 db uhf beam 
1-2 meter above ground ,aimed at the 473.575 site  Is it possible 
to notch out frequencies going into a receiver that are 275 or 375 
 khz off a uhf receive signal or is it going to be too close 
to filter out the TX . 
 

Thank You,
Ian Wells,
Kerinvale Comaudio,
www.kerinvalecomaudio.com.au
 

  

  
  


 
  













  




  
  
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[Repeater-Builder] Fan cooling on PA

[Daron J. Wilson]

OK, this sounds like a simple question, but I can see advantages to both
solutions.

When adding a Fan on a PA heatsink, should I be moving new air in blowing it
onto the heatsink?   Or is cooling more efficient when the fan pulls the
heat away from the heatsink?


Thanks in advance,

Daron N7HQR







 
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RE: [Repeater-Builder] Dayton Hamvention

[Mike Perryman K5JMP]

Any chance of picking up one of the snazzy tie-dye T-shirts?

73
Mike
K5JMP
www.k5jmp.us


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Kevin Custer
Sent: Monday, March 27, 2006 9:12 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Dayton Hamvention


Jim B. wrote:
> So, I realize it's a bit early yet, but with all this talk of Dayton, 
> what kinds of things should we hope to see at the RB table?

Repeaters

Repeaters...

Repeaters...

Oh, and did I mention Repeaters

And   Repeater stuff,  lots of repeater stuff...
lots and lots of repeater stuff

Repeater Builder Antennas
AP-50's
Micor stuff
Mastr II stuff
maybe some hats...








did I say repeaters?









Stuff like on this page:


kuggie





 
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[Repeater-Builder] Re: NEW - ICS Basic repeater controller partial Kits

[wn1b8]

I've used them in two link radios and as a back up repeater 
controller. They are great little controllers.

Scott Madison, WN1B



--- In Repeater-Builder@yahoogroups.com, "na6df" <[EMAIL PROTECTED]> 
wrote:
>
> Cool! I am using one of these as a test controller while I build 
> repeaters. Great stuff, can't beat it for the price.
> 
> na6df
> 
> 
> --- In Repeater-Builder@yahoogroups.com, "brian_martens_ics" 
>  wrote:
> >
> > Hi All
> > 
> > FYI
> > 
> > I am happy to announce that the Basic repeater controller is now
> > avaiable in a partial kit form.  It will include the Basic PCB, a
> > programmed microcontroller, a DTMF decoding chip, a 0 ohm 
resistor 
> and
> > a copy of the manual on CD.  The Basic manual now includes a 
> detailed
> > parts list (see the website) to help with assembly.  The new 
Basic
> > repeater controller kit sells for $24.95.
> > 
> > Thanks and 73
> > Brian
> > ka9pmm
> > ICS
> > www.ics-ctrl.com
> >
>








 
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Re: [Repeater-Builder] Dayton Hamvention

[Kevin Custer]

Jim B. wrote:
> So, I realize it's a bit early yet, but with all this talk of Dayton, 
> what kinds of things should we hope to see at the RB table?

Repeaters

Repeaters...

Repeaters...

Oh, and did I mention Repeaters

And   Repeater stuff,  lots of repeater stuff...
lots and lots of repeater stuff

Repeater Builder Antennas
AP-50's
Micor stuff
Mastr II stuff
maybe some hats...








did I say repeaters?









Stuff like on this page:


kuggie





 
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Re: [Repeater-Builder] Re: 8870 Tone Decoder

[Ken Arck]

At 07:06 PM 3/27/2006 -0700, you wrote:

>California Micro.
>
>CM8870.
>
>Virtually identical to the original Mitel, and "findable" still.

<--Ahhh, thanks for the info Nate.. Good to know (every once in a while,
Zarlink can't fill our 1,000 piece orders quickly enough!)

Ken
--
President and CTO - Arcom Communications
Makers of the world famous RC210 Repeater Controller and accessories.
http://www.ah6le.net/arcom/index.html
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Re: 8870 Tone Decoder

[Nate Duehr]

Ken Arck wrote:
> At 07:47 PM 3/27/2006 -0600, you wrote: 
>   I think that I have seen these at B.G. Micro. 
> 
> <--True but they are not "true" Zarlinks; they're some "knockoff" (which
> I've never been able to find out who make's em.)
> 
> I used to buy them from them until I got setup direct with Zarlink.
> (Zarlink used to be called Mitel).
> 
> Ken

California Micro.

CM8870.

Virtually identical to the original Mitel, and "findable" still.

Nate WY0X




 
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Re: [Repeater-Builder] Re: 8870 Tone Decoder

[Ken Arck]

At 07:47 PM 3/27/2006 -0600, you wrote: 

  I think that I have seen these at B.G. Micro. 

<--True but they are not "true" Zarlinks; they're some "knockoff" (which
I've never been able to find out who make's em.)

I used to buy them from them until I got setup direct with Zarlink.
(Zarlink used to be called Mitel).

Ken
--
President and CTO - Arcom Communications
Makers of the world famous RC210 Repeater Controller and accessories.
http://www.ah6le.net/arcom/index.html
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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RE: [Repeater-Builder] OT..Kind of..Flat Bed Scanner Opinions Sought

[Mike Perryman K5JMP]

Take 
them to Kinko's...  they have Canon "Image-Runners"  iR330... you can 
define a custom page size, and the are fast!  Up to 1200dpi.  It will 
cost a few bucks, but it is worth it.  Forget trying to stitch the images 
back together...  "Xerox stretch" is almost impossible to correct.  We 
used to have a Canon...  but Capitol Copiers got stupid on the 
lease.
73MikeK5JMPwww.k5jmp.us

  -Original Message-From: 
  Repeater-Builder@yahoogroups.com 
  [mailto:[EMAIL PROTECTED]On Behalf Of Micheal 
  SalemSent: Monday, March 27, 2006 8:26 PMTo: 
  Repeater-Builder@yahoogroups.comSubject: Re: [Repeater-Builder] 
  OT..Kind of..Flat Bed Scanner Opinions SoughtRobin: Scanners that do larger than letter or legal are not 
  going to be both inexpensive and fast.   I have an HP3c 
  (legal), HP4c (legal), HP6350 (letter), and a Fujitsu 4120c (sheet fed), and a 
  Fujitsu 4220c (sheet fed with a letter size flat bed) not to mention a variety 
  of Visioneer Strobe Pro scanners.The Fujitsu's are fast (20 ppm at 300 
  dpi) and will do double sided pages.  The HP's are slow  (about 2 
  ppm at 300 dpi and mine have the HP ADF's (I may have an extra HP ADF if 
  somebody needs one).  The problem is that scanning long pages and 
  piecing them together in Paperport or some other program is very difficult and 
  tedious.  I started looking for a larger scanner to do tabloid 
  size (11 x 17).  The only reasonably priced scanner that I found was a 
  Mustek A3 USB.  They go for about $170.00 plus shipping on 
  e-bay.   It will do 300 dpi and can also do 600 x 300 (I think). 
  It is slow (maybe 25 seconds or more, I have not timed it), but does a 
  good job.  It will interface with Paperport and other programs.  It 
  comes with a scan monitor that comes up when you select scan.  It is 
  simple to install.  I have used it to copy manuals.  Some of the 
  Motorola manuals with pages larger than tabloid are not always all one 
  diagram, but instead are pieces and I scan those into tabloid size 
  pieces.  Sometimes the schematics just have to be scanned in two pieces 
  and I don't put them back together. I can print tabloid black and 
  white because I have an HP5000 laser printer.  It is a 1200 dpi tabloid 
  printer with full duplexer and can print on both sides of the page.  
  I even used the Mustek to scan some x-rays and I opened the top and 
  put a small diffuse light about 2 feet above it.  The X-Rays came through 
  pretty good.  (I also have a Nu-Arc light table, but it is too heavy to 
  turn upside down and put it on the scanner.  There are three on 
  e-bay right now.  If somebody has another suggestion, I would be interested, but the 
  Mustek is fairly simple, just slow, but not as slow as scanning in two pieces 
  and putting them together.  Micheal Salem 
  N5MSRobin Midgett wrote:
  Hi,
I have a significant collection of service manuals for various 
commercial two-way radios which I'd like to scan into Adobe Acrobat 
and make available via the Repeater Builder web site. The makes and 
models include RCA 500, 700 & 1000 VHF & UHF, and G.E. models from 
MASTR Exec through MASTRIII, Phoenix, MVS, and others.
I'd like recommendations on flat bed scanners suitable for scanning 
these documents. I have two now that use the USB interface, but 
they're slow, and they only accommodate 8-1/2" x 11" paper. A 
relatively fast scanner with a larger surface (for those fold out 
sheets) would be nice. I suspect someone on the list knows of such a 
machine that they'd recommend.

P.S. Purely as a preemptive measure, please don't ping me for a list 
of the manuals I have available just yet. I haven't gotten that far 
into organizing them. Rest assured I'll be offering them to the ham 
community later this year.

Flat bed scanner recommendations, anyone?

Thanks,
Robin Midgett K4IDC
http://www.people.vanderbilt.edu/~robin.midgett/index.htm  





 
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Re: [Repeater-Builder] Re: 8870 Tone Decoder

[Micheal Salem]

I think that I have seen these at B.G. Micro. 

Go here: 



Search for 8870.  They have them for $4.00 each.  

B. G. Micro is a fun place to look.  There catalogs are always good for
an hour or so of looking. They also have on line.  

Micheal Salem N5MS




Coy Hilton wrote:

  Did you try NEWARK Electronics?



--- In Repeater-Builder@yahoogroups.com, "Jim Cicirello" <[EMAIL PROTECTED]> 
wrote:
  
  
I am trying locate a Tone Decoder Chip 8870 ( Zarlink MT8870DE).
These are no longer available from Jameco or Digikey. Does anyone 

  
  know 
  
  
where I can buy a chip or two? It fits the ICS Controller and is 

  
  said 
  
  
to be a popular chip but both companies no longer stock the chip.


73 JIM  KA2AJH  Wellsville, NY


  
  








 
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[Repeater-Builder] Re: Weather station and repeater

[Coy Hilton]

Why not just link the weather info to the site via a link from home 
that way when it crashes you don't have to wait for the spring thaw 
to fix it. Obviously the site weather is going to be pretty much the 
same during the winter"colder than a well diggers A" Ummm 
well, you get the picture. It would be nice to have the weather for 
the area where there are people.
I have been doing that for about three years now.

Good luck 
AC0Y

--- In Repeater-Builder@yahoogroups.com, "Bob M." <[EMAIL PROTECTED]> 
wrote:
>
> Wow. Talk about "getting your feet wet".
> 
> The CAT200 (www.catauto.com) and other basic repeater
> controllers can talk to the Peet Brothers weather
> stations. I have three of the CAT200 controllers and
> have had zero problems with them. You will need their
> serial interface board, which has a microprocessor on
> it designed to talk to the Peet weather stations. I've
> only used the RS-232 portion of that interface board.
> They make several different controllers and I don't
> know how many others can talk to the weather station.
> 
> There are other companies who make controllers. The
> more advanced ones have programming capabilities that
> would let you talk to just about anything via a serial
> port. I'm sure other people are doing this in similar
> mountain-top locations. Give people some time to read
> and respond to your post.
> 
> Bob M.
> ==
> --- capvan1 <[EMAIL PROTECTED]> wrote:
> 
> > Hi,
> > I am the new repeater trustee for our club, the
> > Connecticut Valley FM Association.
> > 
> > I am investigating a project to replace our aging
> > Spectrum repeater on top of Mt. Ascutney, 
> > here in Vermont. It's a very basic set-up, but is
> > showing it's age.
> > 
> > I would REALLY like to implement a weather reporting
> > feature, but have been unable to find 
> > any information. Davis instruments and Peet have not
> > been very helpful with the nuts and 
> > bolts of this proposal. They both say they have the
> > equipment, but no real information.
> > 
> > The site is not accessible from Nov. 1 to about
> > April 1st. It is a commercial site so we are 
> > connected to their generator for emergency power. No
> > telephone connection.
> > 
> > ANY information, links, etc. would be greatly
> > appreciated. I've only had my general ticket for 
> > a couple of years and all this is new to me.
> > 
> > 73 and Thanks!
> 
> __
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com
>








 
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[Repeater-Builder] Re: 8870 Tone Decoder

[Coy Hilton]

Did you try NEWARK Electronics?



--- In Repeater-Builder@yahoogroups.com, "Jim Cicirello" <[EMAIL PROTECTED]> 
wrote:
>
> I am trying locate a Tone Decoder Chip 8870 ( Zarlink MT8870DE).
> These are no longer available from Jameco or Digikey. Does anyone 
know 
> where I can buy a chip or two? It fits the ICS Controller and is 
said 
> to be a popular chip but both companies no longer stock the chip.
> 
> 
> 73 JIM  KA2AJH  Wellsville, NY
>









 
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Re: [Repeater-Builder] OT..Kind of..Flat Bed Scanner Opinions Sought

[Micheal Salem]

Robin: 

Scanners that do larger than letter or legal are not going to be both
inexpensive and fast.   

I have an HP3c (legal), HP4c (legal), HP6350 (letter), and a Fujitsu
4120c (sheet fed), and a Fujitsu 4220c (sheet fed with a letter size
flat bed) not to mention a variety of Visioneer Strobe Pro scanners.

The Fujitsu's are fast (20 ppm at 300 dpi) and will do double sided
pages.  The HP's are slow  (about 2 ppm at 300 dpi and mine have the HP
ADF's (I may have an extra HP ADF if somebody needs one).  

The problem is that scanning long pages and piecing them together in
Paperport or some other program is very difficult and tedious.  

I started looking for a larger scanner to do tabloid size (11 x 17). 
The only reasonably priced scanner that I found was a Mustek A3 USB. 
They go for about $170.00 plus shipping on e-bay.   It will do 300 dpi
and can also do 600 x 300 (I think). 

It is slow (maybe 25 seconds or more, I have not timed it), but does a
good job.  It will interface with Paperport and other programs.  It
comes with a scan monitor that comes up when you select scan.  It is
simple to install.  I have used it to copy manuals.  Some of the
Motorola manuals with pages larger than tabloid are not always all one
diagram, but instead are pieces and I scan those into tabloid size
pieces.  Sometimes the schematics just have to be scanned in two pieces
and I don't put them back together. 

I can print tabloid black and white because I have an HP5000 laser
printer.  It is a 1200 dpi tabloid printer with full duplexer and can
print on both sides of the page.  

I even used the Mustek to scan some x-rays and I opened the top and put
a small diffuse light about 2 feet above it.  The X-Rays came through
pretty good.  (I also have a Nu-Arc light table, but it is too heavy to
turn upside down and put it on the scanner.  

There are three on e-bay right now.  



 If somebody has another suggestion, I would be
interested, but the Mustek is fairly simple, just slow, but not as slow
as scanning in two pieces and putting them together.  

Micheal Salem N5MS




Robin Midgett wrote:

  Hi,
I have a significant collection of service manuals for various 
commercial two-way radios which I'd like to scan into Adobe Acrobat 
and make available via the Repeater Builder web site. The makes and 
models include RCA 500, 700 & 1000 VHF & UHF, and G.E. models from 
MASTR Exec through MASTRIII, Phoenix, MVS, and others.
I'd like recommendations on flat bed scanners suitable for scanning 
these documents. I have two now that use the USB interface, but 
they're slow, and they only accommodate 8-1/2" x 11" paper. A 
relatively fast scanner with a larger surface (for those fold out 
sheets) would be nice. I suspect someone on the list knows of such a 
machine that they'd recommend.

P.S. Purely as a preemptive measure, please don't ping me for a list 
of the manuals I have available just yet. I haven't gotten that far 
into organizing them. Rest assured I'll be offering them to the ham 
community later this year.

Flat bed scanner recommendations, anyone?

Thanks,
Robin Midgett K4IDC
http://www.people.vanderbilt.edu/~robin.midgett/index.htm  





 
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[Repeater-Builder] Re: AGT = IMTS ?

[sgreact47]

--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
>   I was on mobile telephone in the late sixties / early seventies 
>  on lo-band - the ZM channel. 
> 
>   My 'mobile telephone' consisted of a Motorola 80-D (30 watts 
>  output) installed in the trunk of my car ... connected to 
>  the old mechanical Secode Decoder. 
ssnip>

Neil, thanks for the memories
I remember the "ZM'" phone quite well. I remember you 'keying up' 
from just about anywhre in So Cal, even in S J valley.
Those WERE the days.


Will








 
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RE: [Repeater-Builder] OT..Kind of..Flat Bed Scanner Opinions Sought

[n . mckie]

  Hi Robin, 

  I have the earlier RCA like the Super Carfone, Super Carfone 500, 
 Super Fleetfone 700 and 1000 and apparently some ML1000 & VeeTac. 

  Also in GE from the pre- Progress Line thru Mastr-pro, Exec, Exec 
 II and Mastr II, manuals in the EBI and LBI sections. 

  In Motorola, I have from about 1946 through FMTR-80D & 140D, 
 Twin-V, Motracs - 25-50, 67-88, 136-174 and 406-470, mostly ditto 
 with most of the Mocom anything, Micor 25 MHz up, Mitrek and 
 MSR2000, MSF5000 and some of the later stuff. 

  If I had the computer smarts you seem to have, the repeater-Builder 
 web site would too. 

  73 - Neil - WA6KLA 


 Original Message 
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] OT..Kind of..Flat Bed Scanner
Opinions Sought
Date: Mon, 27 Mar 2006 15:15:51 -0600

>Hi,
>I have a significant collection of service manuals for various 
>commercial two-way radios which I'd like to scan into Adobe Acrobat 
>and make available via the Repeater Builder web site. The makes and 
>models include RCA 500, 700 & 1000 VHF & UHF, and G.E. models from 
>MASTR Exec through MASTRIII, Phoenix, MVS, and others.
>I'd like recommendations on flat bed scanners suitable for scanning 
>these documents. I have two now that use the USB interface, but 
>they're slow, and they only accommodate 8-1/2" x 11" paper. A 
>relatively fast scanner with a larger surface (for those fold out 
>sheets) would be nice. I suspect someone on the list knows of such a 
>machine that they'd recommend.
>
>P.S. Purely as a preemptive measure, please don't ping me for a list 
>of the manuals I have available just yet. I haven't gotten that far 
>into organizing them. Rest assured I'll be offering them to the ham 
>community later this year.
>
>Flat bed scanner recommendations, anyone?
>
>Thanks,
>Robin Midgett K4IDC
>http://www.people.vanderbilt.edu/~robin.midgett/index.htm  
>
>





 
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[Repeater-Builder] OT..Kind of..Flat Bed Scanner Opinions Sought

[Robin Midgett]

Hi,
I have a significant collection of service manuals for various 
commercial two-way radios which I'd like to scan into Adobe Acrobat 
and make available via the Repeater Builder web site. The makes and 
models include RCA 500, 700 & 1000 VHF & UHF, and G.E. models from 
MASTR Exec through MASTRIII, Phoenix, MVS, and others.
I'd like recommendations on flat bed scanners suitable for scanning 
these documents. I have two now that use the USB interface, but 
they're slow, and they only accommodate 8-1/2" x 11" paper. A 
relatively fast scanner with a larger surface (for those fold out 
sheets) would be nice. I suspect someone on the list knows of such a 
machine that they'd recommend.

P.S. Purely as a preemptive measure, please don't ping me for a list 
of the manuals I have available just yet. I haven't gotten that far 
into organizing them. Rest assured I'll be offering them to the ham 
community later this year.

Flat bed scanner recommendations, anyone?

Thanks,
Robin Midgett K4IDC
http://www.people.vanderbilt.edu/~robin.midgett/index.htm  





 
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Re: [Repeater-Builder] db 4072

[Tony Faiola]

Dave VanHorn wrote:
> Anyone know how much power this Br-Br duplexer is designed for?

Yes, Dave, power max input is 150 Watts.  I am putting one up for sale 
for $125.00.

I have been told it is a good price for a good 4072.  If you have a fax 
number, I can fax you the spec sheet.

73, Tony, K3WX








 
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[Repeater-Builder] very close frequencies seperation

[Ian Wells]

 Hi guys .I am trying to receive 473.575mhz from a 25 watt repeater ,line of sight , 50kms away and and retransmitt it on 473.200 at 25 watt on another site.The transmitt antenna is a 6db vertical ,9 meters above ground and the rx antenna is a 6 db uhf beam 1-2 meter above ground ,aimed at the 473.575 site  Is it possible to notch out frequencies going into a receiver that are 275 or 375  khz off a uhf receive signal or is it going to be too close to filter out the TX . 
 

Thank You,
Ian Wells,
Kerinvale Comaudio,
www.kerinvalecomaudio.com.au
 





















  




  
  
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Re: [Repeater-Builder] Dayton time line...

[STeve Andre']

   It never ceases to amaze me, how the "dayton is moving" rumor
mutates and spreads around.

   The owner's of Hara have no intention of selling, nor the does
the Hamvention organization want to leave.  I bumped into some
folks last Dayton (litterally) who were (are) hara folks.  Hara is
doing at least OK; take a look at their wenb site: they have 8
events for April taking up 14 days.  Thats not bad at all for such
a place.

   The best way to make Dayton continue is to get new folks down
there.  My wife and I have been averaging one person per year for
the last several years now, with two getting their licenses there. 
We did some volunteer stuff last year, and I think it was obvious,
the commitment they had to improving the show.  We plan on
doing that again this year.

--STeve Andre'
wb8wsf  en82

On Monday 27 March 2006 11:52, skipp025 wrote:
> Last year or the year before I heard that the Hamvention
> has a 5 year deal already signed... so no one is going
> anywhere for 3 or 4 more years...
>
> skipp
>
> > Wonder what's up with that!  I heard something about the
> > owners of the arena want to discontinue the Hamvention
> > and sell the property or something like that.  That was
> > two years ago the last time I was at Dayton.
> >
> > I've been hearing those rumors since the 70's.
>
> Yahoo! Groups Links
>
>
>




 
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Re: [Repeater-Builder] Dayton Hamvention

[Jim B.]

So, I realize it's a bit early yet, but with all this talk of Dayton, 
what kinds of things should we hope to see at the RB table? ;c}

-- 
Jim Barbour
WD8CHL





 
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[Repeater-Builder] Re: Band pass cavity loop lengths

[Harold Farrenkopf]

The loop size of 8.5" down and then back up if used on VHF would
produce a very low insertion loss cavity with a very wide pass
response and if both of the loops were that dimension then the return
loss would be very good assuming the loops were adjusted to the same
coupling.

Such a large loop may have been needed for a special wide band
preselector that had multiple cavities using that size of loop.  Or it
might have been Low Band loops in a VHF cavity by someone not knowing.

Loop size is dependant on the frequency and loaded Q desired in the
bandpass cavity and the type of coupling method.

In the standard Sinclair cavities, the pass and notch loops are
identical for the VHF band.  The Q loops are one style for the 7"
diameter cans and the Reslok Cans are another.

Having special requirements for non-standard bandwidths or notch
depths would produce different loop sizes.

The old side mounted loops that were fixed mounted had many different
sizes depending on the frequency and insertion loss and hence there
were many different cable lengths to do the same thing at different
frequencies and loss settings.

Harold, VA3HF


--- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]> wrote:
>
> > 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 page on Repeater-Builder from John Portune W6NBC,
> > he says it really doesn't matter the size or shape of 
> > the loop (as far as the response goes).
> 
> Well  not really. The proper loop length is a big 
> deal.  Too small is really bad news and too large is 
> really hard to work with.  If your cavity depends on 
> re-entrant energy it would matter a great deal how 
> big the size and shape of the loop/probe is. 
> 
> If the loop/probe length was really out of line, you 
> might not get a good return loss (swr) through the 
> reactive sections.
> 
> > But as you mentioned, the loop length DOES effect 
> > the jumper length required.
> 
> Quite a bit and it's considered a mostly air dilectric 
> element.
> 
> > So after taking a few other bandpass cans apart and 
> > measuring their loops, I decided to cut the PD loops 
> > down to 3.5 inches. This allowed the jumpers that 
> > were the same length as on the duplexer to give a
> > good match.
> 
> Smart move...  and probably the right move.
> 
> > In the end, it was a lot of reading, followed by some 
> > good suggestions from this group (and recognizing the 
> > need for a network anlyzer).
> 
> Open thy wallet and hold thy breath
> 
> cheers,
> skipp
>












 
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[Repeater-Builder] Re: NEW - ICS Basic repeater controller partial Kits

[na6df]

Cool! I am using one of these as a test controller while I build 
repeaters. Great stuff, can't beat it for the price.

na6df


--- In Repeater-Builder@yahoogroups.com, "brian_martens_ics" 
<[EMAIL PROTECTED]> wrote:
>
> Hi All
> 
> FYI
> 
> I am happy to announce that the Basic repeater controller is now
> avaiable in a partial kit form.  It will include the Basic PCB, a
> programmed microcontroller, a DTMF decoding chip, a 0 ohm resistor 
and
> a copy of the manual on CD.  The Basic manual now includes a 
detailed
> parts list (see the website) to help with assembly.  The new Basic
> repeater controller kit sells for $24.95.
> 
> Thanks and 73
> Brian
> ka9pmm
> ICS
> www.ics-ctrl.com
>









 
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[Repeater-Builder] db 4072

[Dave VanHorn]

Anyone know how much power this Br-Br duplexer is designed for?









 
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[Repeater-Builder] At least 2 new Repeater Controllers to be shown at Dayton

[skipp025]

Direct word from two different Repeater Controller 
Mfgrs.. they both hope to unvail new multi-port units 
at this years Dayton Hamvention. 

I'm looking forward to seeing (and hearing) both 
brands at Dayton. 

Can't say anythimg more about it...but it's fun to 
tease you guys. It's also nice to see some new repeater 
controller products become available. 

cheers,
skipp 








 
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[Repeater-Builder] Dayton time line...

[skipp025]

Last year or the year before I heard that the Hamvention 
has a 5 year deal already signed... so no one is going 
anywhere for 3 or 4 more years... 

skipp 


> Wonder what's up with that!  I heard something about the 
> owners of the arena want to discontinue the Hamvention 
> and sell the property or something like that.  That was 
> two years ago the last time I was at Dayton.

> I've been hearing those rumors since the 70's.









 
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Re: [Repeater-Builder] 8870 Tone Decoder

[Ken Arck]

Write me offlist. We use them in our controllers and have plenty in stock

Ken


At 04:19 PM 3/27/2006 -, you wrote:
>I am trying locate a Tone Decoder Chip 8870 ( Zarlink MT8870DE).
>These are no longer available from Jameco or Digikey. Does anyone know 
>where I can buy a chip or two? It fits the ICS Controller and is said 
>to be a popular chip but both companies no longer stock the chip.
>
>
>73 JIM  KA2AJH  Wellsville, NY
>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>
>
>
--
President and CTO - Arcom Communications
Makers of the world famous RC210 Repeater Controller and accessories.
http://www.ah6le.net/arcom/index.html
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] OT: Dayton Fleamarket space prices?

[Jim B.]

Paul Finch wrote:
> Joe,
> 
> Wow, this is weird, I got your reply BEFORE I got the message back from me!
> Wonder what's up with that!  I heard something about the owners of the arena
> want to discontinue the Hamvention and sell the property or something like
> that.  That was two years ago the last time I was at Dayton.
> 

I've been hearing those rumors since the 70's.
-- 
Jim Barbour
WD8CHL





 
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[Repeater-Builder] 8870 Tone Decoder

[Jim Cicirello]

I am trying locate a Tone Decoder Chip 8870 ( Zarlink MT8870DE).
These are no longer available from Jameco or Digikey. Does anyone know 
where I can buy a chip or two? It fits the ICS Controller and is said 
to be a popular chip but both companies no longer stock the chip.


73 JIM  KA2AJH  Wellsville, NY







 
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[Repeater-Builder] Dayton Hamvention Reply back (as requested)

[skipp025]

Dayton Hamvention Reply back (as requested) 

My friend Tom replied with the following information: 

[paste]

Hi Skipp...
The pricing scheme for flea market spaces had been in place for 
many, many years, and is intended to discourage the larger 
vendors from hogging all the spaces, while keeping things less 
expensive for the guy who just wants to sell a few things he's 
had lying about in his shack. Interestingly enough, the average 
vendor buys just over two spaces ( kinda like the average American 
family has 2.4 kids!). Also, this  means that the vendors who 
buy a lot of spaces, and generally require a bit more attention 
and effort from the committee, pick up their share of the costs. 

The comment about the 2-way shops is pretty astute, and is also 
true for the build-your-own computer parts places, who have a 
tough time competing with a $400 pre-assembled PC. 

There is also the e-bay factor, although that seems to work both 
ways, as I have had several people tell me they buy things there 
for the purpose of bringing them to Dayton to resell.

The right place to go for information is [EMAIL PROTECTED],
but if that isn't getting any response, send a message to chair@
hamvention.org (and a copy to [EMAIL PROTECTED], the asst. GC). That's the
big boss, and he doesn't like it when inquiries go unanswered. He 
has the power to make heads roll.

Regards,
Tom 

[end paste]

So there you have the reply...  

cheers,
skipp 








 
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RE: [Repeater-Builder] Dayton Hamvention

[Jeff DePolo]

Kevin sed:
>I've been attending Dayton since 1974.  This year, I've had 
> two folks 
>contact me to see if I had gotten my tickets yet, as they have not 
>received any word. They need to be more prompt about 
> communications, or 
>they are going to
>piss a bunch of folks off.
>Scotty, did we get our tickets/spaces yet? (we hadn't the last time
>we
>conversed about it)

Has anyone received anything yet?

This will be my 17th year at Dayton.  For at least the last 10 years
we've always had the same fleamarket spaces.  Last year, we didn't get
our fleamarket tickets or entrance tickets.  I called, faxed, emailed,
probably ten times, and it wasn't until the Monday before the event that
I got a call-back saying that they were having problems getting tickets
out in time, and that I'd have to pick them up at the fest on Thursday
when I got there.

This year, I didn't even receive the usual sign-up package which usually
came in December in previous years.  I called, faxed, emailed, and never
heard back.  Finally I gave up and downloaded the forms from their web
site, filled them out, and faxed them in.  I still don't know whether or
not they received it or processed it.

Dayton is always a good time, even in the years with lousy weather, but
they need to make some improvements in the "customer service" side of
things...

--- Jeff

-- 
No virus found in this outgoing message.
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RE: [Repeater-Builder] Re: Two-Way Radio Shop

[n . mckie]

  Paul ... thank you ... I think ... 

  Neil 

 Original Message 
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: Two-Way Radio Shop
Date: Mon, 27 Mar 2006 08:14:49 -0600

>Neil, you know, I thought of you when I was looking through the
>stash!
>
>Paul
>
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] Behalf Of
>[EMAIL PROTECTED]
>Sent: Sunday, March 26, 2006 11:51 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: RE: [Repeater-Builder] Re: Two-Way Radio Shop
>
>
>
>  Reminds me of my garage ...
>
>  Neil
>
> Original Message 
>From: [EMAIL PROTECTED]
>To: Repeater-Builder@yahoogroups.com
>Subject: RE: [Repeater-Builder] Re: Two-Way Radio Shop
>Date: Sun, 26 Mar 2006 20:37:38 -0600
>
>>Skipp,
>>
>>This was a Motorola Service Shop in West Texas.  They were trying to
>>get
>>into the wireless Internet business and went first class, new trucks
>>and
>>all.  They only lasted about 6 months.
>>
>>The main thing I would be selling is the Motorola Service manuals,
>>everything from Micors to Syntors and MSF 2000(?).  I did not want
>to
>>drool
>>too much in front of the guy that's giving it to me lest he might
>>charge me
>>for the goods.  Main thing he wants is to get it out of the building
>>and he
>>knows it's worth something, just not sure how much.  The space in
>the
>>building is worth more than the Motorola "stuff".
>>
>>Paul
>>
>>
>>
>>-Original Message-
>>From: Repeater-Builder@yahoogroups.com
>>[mailto:[EMAIL PROTECTED] Behalf Of skipp025
>>Sent: Saturday, March 25, 2006 10:57 PM
>>To: Repeater-Builder@yahoogroups.com
>>Subject: [Repeater-Builder] Re: Two-Way Radio Shop
>>
>>
>>
>>> "Paul Finch" <[EMAIL PROTECTED]> wrote:
>>> I was going to make the trip this year since I have
>>> inherited a now bankrupt two way shop, don't know
>>> now.  I guess I will but I really don't like it!
>>> Paul
>>
>>What caused the shop to go bankrupt..?
>>
>>Someone once told me not to try and make serious money
>>in Ham Radio (for a number of now obvious reasons). A
>>number of the flea market spaces are held by people
>>trying to make a living fliping radios, used computers
>>and surplus electronics.  Don't forget the bootleg
>>computer programs...
>>
>>In case anyone hasn't noticed there's a serious
>>glut of used electronics and dead cars in the US.
>>
>>The people now going to Dayton... are there for some of
>>the better reasons renewed.  To have fun, meet people,
>>see new products, meet up with friends, sell a few used
>>things in the parking lot, selling some new products in
>>the parking lot as well as getting the word out about
>>new products.   F
>>
>>Not to mention the brauts and fine seating in the
>>ice rink...
>>
>>cheers,
>>skipp
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>






 
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RE: [Repeater-Builder] Re: Two-Way Radio Shop

[Paul Finch]

Neil, you know, I thought of you when I was looking through the stash!

Paul


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of
[EMAIL PROTECTED]
Sent: Sunday, March 26, 2006 11:51 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: Two-Way Radio Shop



  Reminds me of my garage ...

  Neil

 Original Message 
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: Two-Way Radio Shop
Date: Sun, 26 Mar 2006 20:37:38 -0600

>Skipp,
>
>This was a Motorola Service Shop in West Texas.  They were trying to
>get
>into the wireless Internet business and went first class, new trucks
>and
>all.  They only lasted about 6 months.
>
>The main thing I would be selling is the Motorola Service manuals,
>everything from Micors to Syntors and MSF 2000(?).  I did not want to
>drool
>too much in front of the guy that's giving it to me lest he might
>charge me
>for the goods.  Main thing he wants is to get it out of the building
>and he
>knows it's worth something, just not sure how much.  The space in the
>building is worth more than the Motorola "stuff".
>
>Paul
>
>
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] Behalf Of skipp025
>Sent: Saturday, March 25, 2006 10:57 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Re: Two-Way Radio Shop
>
>
>
>> "Paul Finch" <[EMAIL PROTECTED]> wrote:
>> I was going to make the trip this year since I have
>> inherited a now bankrupt two way shop, don't know
>> now.  I guess I will but I really don't like it!
>> Paul
>
>What caused the shop to go bankrupt..?
>
>Someone once told me not to try and make serious money
>in Ham Radio (for a number of now obvious reasons). A
>number of the flea market spaces are held by people
>trying to make a living fliping radios, used computers
>and surplus electronics.  Don't forget the bootleg
>computer programs...
>
>In case anyone hasn't noticed there's a serious
>glut of used electronics and dead cars in the US.
>
>The people now going to Dayton... are there for some of
>the better reasons renewed.  To have fun, meet people,
>see new products, meet up with friends, sell a few used
>things in the parking lot, selling some new products in
>the parking lot as well as getting the word out about
>new products.   F
>
>Not to mention the brauts and fine seating in the
>ice rink...
>
>cheers,
>skipp
>
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>







Yahoo! Groups Links














 
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RE: [Repeater-Builder] Mouse-tr II chassis - free

[n . mckie]

  We did that back in the sixties ... soap and water in the kitchen 
 sink - drying in the oven. 

  Neil - WA6KLA 

 Original Message 
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Mouse-tr II chassis - free
Date: Sun, 26 Mar 2006 20:05:21 -0500

>Jeff,
>Pull the cabling harnesses out, and throw it in the dishwasher..  I
>used to
>do that with old Collins gear when I worked in radio repair.  You
>just gotta
>be careful how much dishwashing detergent you use...  not fun when
>all the
>resistor bands disappear!  Do it right and it will come out looking
>new.
>This is a prime example from last summer...
>
>A guy in Oklahoma paid 900 bucks for the thing!!
>
>Folks would be surprised at some of the methods we used on the old
>AN-VRC
>series radios.
>
>You can't do that with the plastic gear today...
>Seems that was a lifetime ago...  dem wuz da daze!!!
>
>73
>Mike
>K5JMP
>www.k5jmp.us
>
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] Behalf Of vmckever
>Sent: Sunday, March 26, 2006 7:44 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Mouse-tr II chassis - free
>
>
>Jeff, Sounds like a good piece for recycling.  You should be able to
>get a
>couple of bucks from the metal recycle guys.
>
>Vincent N6OA
>- Original Message -
>From: "Jeff DePolo" <[EMAIL PROTECTED]>
>To: 
>Sent: Sunday, March 26, 2006 5:58 PM
>Subject: [Repeater-Builder] Mouse-tr II chassis - free
>
>
>>
>> I have a Mastr II chassis that apparently a group of mice were
>living in
>> without permission and without paying rent (is there such a thing
>as a
>> mouse crack house?).  Anyway, if anyone wants it, let me know
>before
>> before 10 PM EST tonight else it goes out for the morning trash. 
>It's
>> just the chassis, backplane, door, harness, speaker, etc., no PA,
>no
>> cards in the shelf, no exciter, no receiver, no system board, no
>lid.
>> And it's anything but clean.
>>
>> --- Jeff
>>
>>
>>
>>
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>






 
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Re: [Repeater-Builder] Weather station and repeater

[Bob M.]

Wow. Talk about "getting your feet wet".

The CAT200 (www.catauto.com) and other basic repeater
controllers can talk to the Peet Brothers weather
stations. I have three of the CAT200 controllers and
have had zero problems with them. You will need their
serial interface board, which has a microprocessor on
it designed to talk to the Peet weather stations. I've
only used the RS-232 portion of that interface board.
They make several different controllers and I don't
know how many others can talk to the weather station.

There are other companies who make controllers. The
more advanced ones have programming capabilities that
would let you talk to just about anything via a serial
port. I'm sure other people are doing this in similar
mountain-top locations. Give people some time to read
and respond to your post.

Bob M.
==
--- capvan1 <[EMAIL PROTECTED]> wrote:

> Hi,
> I am the new repeater trustee for our club, the
> Connecticut Valley FM Association.
> 
> I am investigating a project to replace our aging
> Spectrum repeater on top of Mt. Ascutney, 
> here in Vermont. It's a very basic set-up, but is
> showing it's age.
> 
> I would REALLY like to implement a weather reporting
> feature, but have been unable to find 
> any information. Davis instruments and Peet have not
> been very helpful with the nuts and 
> bolts of this proposal. They both say they have the
> equipment, but no real information.
> 
> The site is not accessible from Nov. 1 to about
> April 1st. It is a commercial site so we are 
> connected to their generator for emergency power. No
> telephone connection.
> 
> ANY information, links, etc. would be greatly
> appreciated. I've only had my general ticket for 
> a couple of years and all this is new to me.
> 
> 73 and Thanks!

__
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RE: [Repeater-Builder] AGT = IMTS ?

[n . mckie]

  Hi Eric, 

  Back in the old MTS (pre-IMTS) days ... (MTS = Mobile Telephone 
 Service / IMTS = Improved Mobile Telephone Service) 

  I was on mobile telephone in the late sixties / early seventies 
 on lo-band - the ZM channel. 

  My 'mobile telephone' consisted of a Motorola 80-D (30 watts 
 output) installed in the trunk of my car ... connected to 
 the old mechanical Secode Decoder. 

  The Secode Decoder was anything but quiet in its operation.  I 
 could easily count the mechanical steps as it decoded each number 
 dialed to it by the mobile operator.  (Alternating 600 / 1500 Hz 
 tones) I think my number was ZM-76244 ... maybe not as Paul (then 
 K6CHR) was also on that channel and had a similar number.  

  A short carrier burst from my radio and the mobile operator 
 would come on the channel asking for the number I wanted to 
 call. 

  The lo-band 80-D radio was (I think) 43+ Mc transmit and 35+ Mc 
 receive.  I bought the used radio at the local junk store (Mann 
 Communications for those who remember Jim) for $50-60.  The 
 mobile service was $7 per month. 

  BTW, for you who remember Jim Mann (Mann Communications) he was 
 WB6JAJ (or as we happily called him, Jack Ass Jim.) 

  For you guys who fondly remember those days, the mobile telephone 
 channels were as fun to listen to as you may wish:  

  I was listening one evening as I was driving across town ... some 
 guy called his wife about an extended meeting at the office ... 
 then shortly, called three separate lady friends setting up each 
 visit for 1 1/2 hours apart. 

  Those were the days . 35 some odd years ago. 

  BTW, the 80-D (complete model number: FMTR-80D) was all tube, 
 vibrator power supply for the receiver / dynamotor power supply 
 for the transmitter.  Yes, I do have the manual for that radio 
 in case any of you ... 

  Neil 


>- Original Message - 
>From: Eric Lemmon
>To: Repeater-Builder@yahoogroups.com
>Sent: 25 March, 2006 21:24
>Subject: RE: [Repeater-Builder] AGT = IMTS ?
>
>
>Skipp,
>
>I'm just grasping at straws.  The IMTS is a lot more complex than a
>simple
>duplex system that might have been used internally by AGT rather than
>by
>subscribers.  Back in the late 60's, I used a half-duplex GE Pacer
>(!) radio
>in an MTS system for a couple of years after IMTS became available. 
>It
>would have been better to use a full-duplex radio, but this is what I
>had at
>the time.  The Pacer was an all-tube radio, except for the
>transistorized
>power supply.  It had a mechanical decoder made by Secode.  To make a
>call,
>I had to key the handset for a few seconds, and wait for the mobile
>operator
>to respond.  That was not much more sophisticated than a magneto
>telephone!
>I eventually got kicked off the system because there were only a
>handful of
>people using the manual MTS- everyone was scrambling to get on the
>IMTS
>bandwagon.  Ah, yes... Those were the good old days!
>
>73, Eric Lemmon WB6FLY
>
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
>Sent: Saturday, March 25, 2006 9:01 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] AGT = IMTS ?
>
>Would the Alberta Gov Telephones system be something like
>an IMTS (system) operation?
>
>Cute to think Motorola came out with something later than
>the Pulsar for IMTS... or was there a UHF/VHF Privacy Plus
>IMTS Phone?
>
>skipp
>
>> "Eric Lemmon" <[EMAIL PROTECTED]> wrote:
>> I suspect that your full-duplex radio was used in a mobile
>> telephone system by Alberta Government Telephones (AGT),
>> which later changed its name to TELUS.  If there's no
>> selective call decoder in it, or loose wiring suggesting
>> that one was connected, it might have used multiple PL tones for
>> simple selection.  Just a thought...
>>
>> 73, Eric Lemmon WB6FLY 
>
>





 
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