Re: [Repeater-Builder] Re: Compa Station Help

2008-03-31 Thread mung
Well the exciter element was still in there and it is 
154.355.

Does that tell us anything?  The Recv ones are missing.

Thanks,
Vern

On Sat, 29 Mar 2008 08:12:03 -0500 (CDT)
  Ron Wright [EMAIL PROTECTED] wrote:
 Vern,
 
 There are basically 2 power leads from the power supply. 
 1 is a multi-wire cable that plugs into the card cage 
usually and the other is a large, #12, two wire that goes 
from the heavy terminal on the rear of the supply to the 
main chassis set of terminals, usually in the upper 
right.
 
 The multi-wire cable hopefully is there.  It is just 
wirings coming out of the PS chassis and carries the low 
current 9.6V and 13.8V.  The larger 2 wire is easy to 
make and supplies the power for the PA.
 
 73, ron, n9ee/r
 
 
 
From: [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 07:51:35 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help
 

The reason the power supply leads are missing is that I 
got it from the local used supply store.  They had taken 
every thing out of the cabinet and were going to sell the 
cabinet and power supply seperate and probably throw the 
rest out.

Vern

On Sat, 29 Mar 2008 06:43:36 -
  tallinson2 [EMAIL PROTECTED] wrote:
 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.  As stated earlier, the channel elements 
are often
 removed to prevent operation on the previous user's 
channel.  Not a
 big deal.  The cards are often kept as spares, 
particularly if the
 station was disposed of through a repair shop.  The 
missing PA power
 leads are a bit unusual but, at most, five minutes to 
replace them. 
 If you want to make a repeater, you don't need an 
antenna relay but
 they can be found too, if needed.  I wish I had a dollar 
for every ham
 repeater that is made from converted mobiles, these are 
ALL
 intermittent duty transmitters.  With reduced power 
and a cooling
 fan (mainly for peace of mind) this station will be more 
reliable than
 80% of the so called continuous duty ham gear out there. 
 I'd take
 that station anyday in preference to a Kensu desktop 
repeater. 
 The receiver is easily converted with a recoiled RF 
front end
 available very reasonably.  Your biggest challenge is 
going to be that
 HIGH split transmitter.
 Tom
 
 --- In Repeater-Builder@yahoogroups.com, Milt 
[EMAIL PROTECTED] wrote:

 Intermittent duty base station that has been robbed of 
parts.
 
 No channel elements in the receiver, probably none in 
the transmitter.
 No station control card.  No high current leads to the 
final.  As
 noted by 
 earlier posts this is not a unit that will handle long 
periods of 
 transmission.  Also no antenna relay (not that you need 
one for what
 you 
 want to do).
 
 Given the number of missing parts I would be very 
suspicious of the
 overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
  How about some pictures?  They are a little big and 
some
  are redundant but hopefully it should give you guys 
some
  idea of what I have.
 
  http://www.highwayusa.com/motorola/pict0001.jpg
  http://www.highwayusa.com/motorola/pict0002.jpg
  http://www.highwayusa.com/motorola/pict0003.jpg
  http://www.highwayusa.com/motorola/pict0004.jpg
  http://www.highwayusa.com/motorola/pict0005.jpg
 
 
  Vern
 
  On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
   Ron Wright [EMAIL PROTECTED] wrote:
  Vern,
 
  Usually the easiest way to find what band and band
 segment it are on is to look at the Channel Elements, 
the
 small cans in the exciter and receiver.  They unplug. 
 A
 label on the top of the cans gives its frequency.
  However, to prevent them being put back on the same 
freq
 some pull the elements.  Most always one can get to 
them
 thru a panel behind the receiver.  Same with some
 exciters.
 
  There were 3 ranges for VHF as someone stated.
 
  Wonder what the heat sink looks like.  The continuous
 duty has large 17w x 7h x 6 deep heat sink. 
 Otherwise
 it is built into the main chassis or is tube amp.
 
  Mot made a number of variations of these.  They do 
make
 good repeaters.  Just takes some work.
 
  One clue if it is a repeater and not a base station 
is
 the card cage usually has a Squelch Gate card.  This
 controls rx to tx keying.
 
  I think others gave you lots of good info with the
 repeater builders site.
 
  The power supply tells lots.  Might describe it.
 
  73, ron, n9ee/r
 
 
 
 From: [EMAIL PROTECTED]
 Date: 2008/03/28 Fri PM 01:19:10 CDT
 To: Repeater-Builder@yahoogroups.com
 Subject: [Repeater-Builder] Compa Station Help
 
 
 I have a Compa Station with the model number
 C73RTB-1106C.
 
 I am looking for some help figuring out what this is
 split, etc and how to make it into a repeater.
 
 First things first is that there is no power leads 
hooked
 up except

Re: Re: [Repeater-Builder] Re: Compa Station Help

2008-03-31 Thread Ron Wright
Vern,

Most likely tells you the TX is on 154.335 meaning it would be a 150-160 MHz 
split.

On the solder side of the PCBs you should see a TLD number, something like 
this and if the last digit is a 2 it is 150-160 for both exciter and rcvr.

73, ron, n9ee/r



From: [EMAIL PROTECTED]
Date: 2008/03/31 Mon PM 01:49:37 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help


Well the exciter element was still in there and it is 
154.355.

Does that tell us anything?  The Recv ones are missing.

Thanks,
Vern

On Sat, 29 Mar 2008 08:12:03 -0500 (CDT)
  Ron Wright [EMAIL PROTECTED] wrote:
 Vern,
 
 There are basically 2 power leads from the power supply. 
 1 is a multi-wire cable that plugs into the card cage 
usually and the other is a large, #12, two wire that goes 
from the heavy terminal on the rear of the supply to the 
main chassis set of terminals, usually in the upper 
right.
 
 The multi-wire cable hopefully is there.  It is just 
wirings coming out of the PS chassis and carries the low 
current 9.6V and 13.8V.  The larger 2 wire is easy to 
make and supplies the power for the PA.
 
 73, ron, n9ee/r
 
 
 
From: [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 07:51:35 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help
 

The reason the power supply leads are missing is that I 
got it from the local used supply store.  They had taken 
every thing out of the cabinet and were going to sell the 
cabinet and power supply seperate and probably throw the 
rest out.

Vern

On Sat, 29 Mar 2008 06:43:36 -
  tallinson2 [EMAIL PROTECTED] wrote:
 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.  As stated earlier, the channel elements 
are often
 removed to prevent operation on the previous user's 
channel.  Not a
 big deal.  The cards are often kept as spares, 
particularly if the
 station was disposed of through a repair shop.  The 
missing PA power
 leads are a bit unusual but, at most, five minutes to 
replace them. 
 If you want to make a repeater, you don't need an 
antenna relay but
 they can be found too, if needed.  I wish I had a dollar 
for every ham
 repeater that is made from converted mobiles, these are 
ALL
 intermittent duty transmitters.  With reduced power 
and a cooling
 fan (mainly for peace of mind) this station will be more 
reliable than
 80% of the so called continuous duty ham gear out there. 
 I'd take
 that station anyday in preference to a Kensu desktop 
repeater. 
 The receiver is easily converted with a recoiled RF 
front end
 available very reasonably.  Your biggest challenge is 
going to be that
 HIGH split transmitter.
 Tom
 
 --- In Repeater-Builder@yahoogroups.com, Milt 
[EMAIL PROTECTED] wrote:

 Intermittent duty base station that has been robbed of 
parts.
 
 No channel elements in the receiver, probably none in 
the transmitter.
 No station control card.  No high current leads to the 
final.  As
 noted by 
 earlier posts this is not a unit that will handle long 
periods of 
 transmission.  Also no antenna relay (not that you need 
one for what
 you 
 want to do).
 
 Given the number of missing parts I would be very 
suspicious of the
 overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
  How about some pictures?  They are a little big and 
some
  are redundant but hopefully it should give you guys 
some
  idea of what I have.
 
  http://www.highwayusa.com/motorola/pict0001.jpg
  http://www.highwayusa.com/motorola/pict0002.jpg
  http://www.highwayusa.com/motorola/pict0003.jpg
  http://www.highwayusa.com/motorola/pict0004.jpg
  http://www.highwayusa.com/motorola/pict0005.jpg
 
 
  Vern
 
  On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
   Ron Wright [EMAIL PROTECTED] wrote:
  Vern,
 
  Usually the easiest way to find what band and band
 segment it are on is to look at the Channel Elements, 
the
 small cans in the exciter and receiver.  They unplug. 
 A
 label on the top of the cans gives its frequency.
  However, to prevent them being put back on the same 
freq
 some pull the elements.  Most always one can get to 
them
 thru a panel behind the receiver.  Same with some
 exciters.
 
  There were 3 ranges for VHF as someone stated.
 
  Wonder what the heat sink looks like.  The continuous
 duty has large 17w x 7h x 6 deep heat sink. 
 Otherwise
 it is built into the main chassis or is tube amp.
 
  Mot made a number of variations of these.  They do 
make
 good repeaters.  Just takes some work.
 
  One clue if it is a repeater and not a base station 
is
 the card cage usually has a Squelch Gate card.  This
 controls rx to tx keying.
 
  I think others gave you lots of good info with the
 repeater builders site.
 
  The power supply tells lots

Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread Ron Wright
Tom,

Some good points.  Hard to beat a Micor.  If many repeater builders really knew 
much they would be using the Micor or the like instead of the plug and easy way 
out.

I like the Kensu.  Thought would add something.

How about Kensucom, hi.

73, ron, n9ee/r





From: tallinson2 [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 01:43:36 CDT
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Compa Station Help


Actually, I wouldn't be too concerned about the condition of the rest
of the station.  As stated earlier, the channel elements are often
removed to prevent operation on the previous user's channel.  Not a
big deal.  The cards are often kept as spares, particularly if the
station was disposed of through a repair shop.  The missing PA power
leads are a bit unusual but, at most, five minutes to replace them. 
If you want to make a repeater, you don't need an antenna relay but
they can be found too, if needed.  I wish I had a dollar for every ham
repeater that is made from converted mobiles, these are ALL
intermittent duty transmitters.  With reduced power and a cooling
fan (mainly for peace of mind) this station will be more reliable than
80% of the so called continuous duty ham gear out there.  I'd take
that station anyday in preference to a Kensu desktop repeater. 
The receiver is easily converted with a recoiled RF front end
available very reasonably.  Your biggest challenge is going to be that
HIGH split transmitter.
Tom

--- In Repeater-Builder@yahoogroups.com, Milt [EMAIL PROTECTED] wrote:

 Intermittent duty base station that has been robbed of parts.
 
 No channel elements in the receiver, probably none in the transmitter.
 No station control card.  No high current leads to the final.  As
noted by 
 earlier posts this is not a unit that will handle long periods of 
 transmission.  Also no antenna relay (not that you need one for what
you 
 want to do).
 
 Given the number of missing parts I would be very suspicious of the
overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
  How about some pictures?  They are a little big and some
  are redundant but hopefully it should give you guys some
  idea of what I have.
 
  http://www.highwayusa.com/motorola/pict0001.jpg
  http://www.highwayusa.com/motorola/pict0002.jpg
  http://www.highwayusa.com/motorola/pict0003.jpg
  http://www.highwayusa.com/motorola/pict0004.jpg
  http://www.highwayusa.com/motorola/pict0005.jpg
 
 
  Vern
 
  On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
   Ron Wright [EMAIL PROTECTED] wrote:
  Vern,
 
  Usually the easiest way to find what band and band
 segment it are on is to look at the Channel Elements, the
 small cans in the exciter and receiver.  They unplug.  A
 label on the top of the cans gives its frequency.
  However, to prevent them being put back on the same freq
 some pull the elements.  Most always one can get to them
 thru a panel behind the receiver.  Same with some
 exciters.
 
  There were 3 ranges for VHF as someone stated.
 
  Wonder what the heat sink looks like.  The continuous
 duty has large 17w x 7h x 6 deep heat sink.  Otherwise
 it is built into the main chassis or is tube amp.
 
  Mot made a number of variations of these.  They do make
 good repeaters.  Just takes some work.
 
  One clue if it is a repeater and not a base station is
 the card cage usually has a Squelch Gate card.  This
 controls rx to tx keying.
 
  I think others gave you lots of good info with the
 repeater builders site.
 
  The power supply tells lots.  Might describe it.
 
  73, ron, n9ee/r
 
 
 
 From: [EMAIL PROTECTED]
 Date: 2008/03/28 Fri PM 01:19:10 CDT
 To: Repeater-Builder@yahoogroups.com
 Subject: [Repeater-Builder] Compa Station Help
 
 
 I have a Compa Station with the model number
 C73RTB-1106C.
 
 I am looking for some help figuring out what this is
 split, etc and how to make it into a repeater.
 
 First things first is that there is no power leads hooked
 up except for the one to the control board box.  I can
 see
 where there are places for heavy cables from the power
 supply to the transmitter.  Is there seperate power for
 the receiver or does that come from the ribbon cable?
 
 How can I get this thing to key up to see what the TX
 frequency is?  If I find out the TX freq can I sweep the
 recv side with a freq generator to figure out where it
 opens up?
 
 Are these crystal controlled or can they be adjusted to
 get the right frequency pair?
 
 Thanks,
 Vern
 
 
 
  Ron Wright, N9EE
  727-376-6575
  MICRO COMPUTER CONCEPTS
  Owner 146.64 repeater Tampa Bay, FL
  No tone, all are welcome.
 
 
 
 
  
 
 
 
  Yahoo! Groups Links
 
 
 


   
 


Ron Wright, N9EE
727-376-6575
MICRO 

Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread Milt

 Actually, I wouldn't be too concerned about the condition of the rest
 of the station.

You might not be, and I would not be concerned if I had the station or was 
considering it.  I do not know what the original poster's level of 
experience is, thus my comment.  If I was looking at this station I would 
see a good supply of spare parts, and/or a possible conversion to 220 since 
it reportedly has a high range transmitter.  I would not consider this 
station a good candidate for a first time project.  With no channel elements 
and a high split radio it will be hard to determine if the station has any 
problems BEFORE an attempt is made to change frequency.  Simply grabbing a 
set of elements and restuffing them is a sure way to add to your overall 
level of frustration/stress.

If I were going to try to do anything with this unit I would want to find a 
set of channel elements in the high range.  I would then attempt to get the 
station working in the range that it was built for.  Find and if possible 
fix any issues that are present.  Determine what is needed to convert to the 
lower range.  THEN AND ONLY THEN would I attempt to change the frequency of 
the radio.  No, changing the frequency range in which the radio operates is 
not rocket science, it simply takes a service manual, proper test equipment, 
time, parts, patience, an understanding of what is going on, and a 
willingness to learn.

Now back to repeater-building.

MIlt
N3LTQ



Re: Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread Ron Wright
Milt,

Very good advice.

I would not even try to move the unit down with the existing boards if they are 
the higher split.  If going to 222 then would be something to start with.

If putting on 2 meters would be nice to pick up a mobile for 136-150 range and 
simple unplug the boards...well exciter and receiver, and remove these from the 
mobile.  They just plug in.  Of course finding a 136-150 is difficult, but 
Canada did use this band more and I see other equipment like the GEs in this 
range.

Milt, you and others on this board, and I started messing with the Micor a few 
years back.  It is obvious from all the reply's that many have worked with the 
Micor.  The commercial guys couple decades back.  Of course then we could not 
afford the $3000+ for one so many used Motracs.  It was fun working with the 
Micor.  Once got a manual (Mot made excellent manuals) one could really work 
with them, learned how to work with them and as with many Hams enjoy this kind 
of thing.

So Vern you got a project, if you want, that can lead to a good repeater.

73, ron, n9ee/r




From: Milt [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 06:19:09 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help



 Actually, I wouldn't be too concerned about the condition of the rest
 of the station.

You might not be, and I would not be concerned if I had the station or was 
considering it.  I do not know what the original poster's level of 
experience is, thus my comment.  If I was looking at this station I would 
see a good supply of spare parts, and/or a possible conversion to 220 since 
it reportedly has a high range transmitter.  I would not consider this 
station a good candidate for a first time project.  With no channel elements 
and a high split radio it will be hard to determine if the station has any 
problems BEFORE an attempt is made to change frequency.  Simply grabbing a 
set of elements and restuffing them is a sure way to add to your overall 
level of frustration/stress.

If I were going to try to do anything with this unit I would want to find a 
set of channel elements in the high range.  I would then attempt to get the 
station working in the range that it was built for.  Find and if possible 
fix any issues that are present.  Determine what is needed to convert to the 
lower range.  THEN AND ONLY THEN would I attempt to change the frequency of 
the radio.  No, changing the frequency range in which the radio operates is 
not rocket science, it simply takes a service manual, proper test equipment, 
time, parts, patience, an understanding of what is going on, and a 
willingness to learn.

Now back to repeater-building.

MIlt
N3LTQ

   
 


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.




Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread mung
The reason the power supply leads are missing is that I 
got it from the local used supply store.  They had taken 
every thing out of the cabinet and were going to sell the 
cabinet and power supply seperate and probably throw the 
rest out.

Vern

On Sat, 29 Mar 2008 06:43:36 -
  tallinson2 [EMAIL PROTECTED] wrote:
 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.  As stated earlier, the channel elements 
are often
 removed to prevent operation on the previous user's 
channel.  Not a
 big deal.  The cards are often kept as spares, 
particularly if the
 station was disposed of through a repair shop.  The 
missing PA power
 leads are a bit unusual but, at most, five minutes to 
replace them. 
 If you want to make a repeater, you don't need an 
antenna relay but
 they can be found too, if needed.  I wish I had a dollar 
for every ham
 repeater that is made from converted mobiles, these are 
ALL
 intermittent duty transmitters.  With reduced power 
and a cooling
 fan (mainly for peace of mind) this station will be more 
reliable than
 80% of the so called continuous duty ham gear out there. 
 I'd take
 that station anyday in preference to a Kensu desktop 
repeater. 
 The receiver is easily converted with a recoiled RF 
front end
 available very reasonably.  Your biggest challenge is 
going to be that
 HIGH split transmitter.
 Tom
 
 --- In Repeater-Builder@yahoogroups.com, Milt 
[EMAIL PROTECTED] wrote:

 Intermittent duty base station that has been robbed of 
parts.
 
 No channel elements in the receiver, probably none in 
the transmitter.
 No station control card.  No high current leads to the 
final.  As
 noted by 
 earlier posts this is not a unit that will handle long 
periods of 
 transmission.  Also no antenna relay (not that you need 
one for what
 you 
 want to do).
 
 Given the number of missing parts I would be very 
suspicious of the
 overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
  How about some pictures?  They are a little big and 
some
  are redundant but hopefully it should give you guys 
some
  idea of what I have.
 
  http://www.highwayusa.com/motorola/pict0001.jpg
  http://www.highwayusa.com/motorola/pict0002.jpg
  http://www.highwayusa.com/motorola/pict0003.jpg
  http://www.highwayusa.com/motorola/pict0004.jpg
  http://www.highwayusa.com/motorola/pict0005.jpg
 
 
  Vern
 
  On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
   Ron Wright [EMAIL PROTECTED] wrote:
  Vern,
 
  Usually the easiest way to find what band and band
 segment it are on is to look at the Channel Elements, 
the
 small cans in the exciter and receiver.  They unplug. 
 A
 label on the top of the cans gives its frequency.
  However, to prevent them being put back on the same 
freq
 some pull the elements.  Most always one can get to 
them
 thru a panel behind the receiver.  Same with some
 exciters.
 
  There were 3 ranges for VHF as someone stated.
 
  Wonder what the heat sink looks like.  The continuous
 duty has large 17w x 7h x 6 deep heat sink. 
 Otherwise
 it is built into the main chassis or is tube amp.
 
  Mot made a number of variations of these.  They do 
make
 good repeaters.  Just takes some work.
 
  One clue if it is a repeater and not a base station 
is
 the card cage usually has a Squelch Gate card.  This
 controls rx to tx keying.
 
  I think others gave you lots of good info with the
 repeater builders site.
 
  The power supply tells lots.  Might describe it.
 
  73, ron, n9ee/r
 
 
 
 From: [EMAIL PROTECTED]
 Date: 2008/03/28 Fri PM 01:19:10 CDT
 To: Repeater-Builder@yahoogroups.com
 Subject: [Repeater-Builder] Compa Station Help
 
 
 I have a Compa Station with the model number
 C73RTB-1106C.
 
 I am looking for some help figuring out what this is
 split, etc and how to make it into a repeater.
 
 First things first is that there is no power leads 
hooked
 up except for the one to the control board box.  I 
can
 see
 where there are places for heavy cables from the 
power
 supply to the transmitter.  Is there seperate power 
for
 the receiver or does that come from the ribbon cable?
 
 How can I get this thing to key up to see what the TX
 frequency is?  If I find out the TX freq can I sweep 
the
 recv side with a freq generator to figure out where 
it
 opens up?
 
 Are these crystal controlled or can they be adjusted 
to
 get the right frequency pair?
 
 Thanks,
 Vern
 
 
 
  Ron Wright, N9EE
  727-376-6575
  MICRO COMPUTER CONCEPTS
  Owner 146.64 repeater Tampa Bay, FL
  No tone, all are welcome.
 
 
 
 
  
 
 
 
  Yahoo! Groups Links
 
 
 

 
 



Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread mung
I wouldn't mind having it on 220 if nothing else then for 
the learning experiance of doing it.

Vern

On Sat, 29 Mar 2008 07:25:10 -0500 (CDT)
  Ron Wright [EMAIL PROTECTED] wrote:
 Milt,
 
 Very good advice.
 
 I would not even try to move the unit down with the 
existing boards if they are the higher split.  If going 
to 222 then would be something to start with.
 
 If putting on 2 meters would be nice to pick up a mobile 
for 136-150 range and simple unplug the boards...well 
exciter and receiver, and remove these from the mobile. 
 They just plug in.  Of course finding a 136-150 is 
difficult, but Canada did use this band more and I see 
other equipment like the GEs in this range.
 
 Milt, you and others on this board, and I started 
messing with the Micor a few years back.  It is obvious 
from all the reply's that many have worked with the 
Micor.  The commercial guys couple decades back.  Of 
course then we could not afford the $3000+ for one so 
many used Motracs.  It was fun working with the Micor. 
 Once got a manual (Mot made excellent manuals) one could 
really work with them, learned how to work with them and 
as with many Hams enjoy this kind of thing.
 
 So Vern you got a project, if you want, that can lead to 
a good repeater.
 
 73, ron, n9ee/r
 
 
 
 
From: Milt [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 06:19:09 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help
 


 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.

You might not be, and I would not be concerned if I had 
the station or was 
considering it.  I do not know what the original poster's 
level of 
experience is, thus my comment.  If I was looking at this 
station I would 
see a good supply of spare parts, and/or a possible 
conversion to 220 since 
it reportedly has a high range transmitter.  I would not 
consider this 
station a good candidate for a first time project.  With 
no channel elements 
and a high split radio it will be hard to determine if 
the station has any 
problems BEFORE an attempt is made to change frequency. 
 Simply grabbing a 
set of elements and restuffing them is a sure way to add 
to your overall 
level of frustration/stress.

If I were going to try to do anything with this unit I 
would want to find a 
set of channel elements in the high range.  I would then 
attempt to get the 
station working in the range that it was built for.  Find 
and if possible 
fix any issues that are present.  Determine what is 
needed to convert to the 
lower range.  THEN AND ONLY THEN would I attempt to 
change the frequency of 
the radio.  No, changing the frequency range in which the 
radio operates is 
not rocket science, it simply takes a service manual, 
proper test equipment, 
time, parts, patience, an understanding of what is going 
on, and a 
willingness to learn.

Now back to repeater-building.

MIlt
N3LTQ

  
 
 
 
 Ron Wright, N9EE
 727-376-6575
 MICRO COMPUTER CONCEPTS
 Owner 146.64 repeater Tampa Bay, FL
 No tone, all are welcome.
 
 



Re: Re: [Repeater-Builder] Re: Compa Station Help

2008-03-29 Thread Ron Wright
Vern,

There are basically 2 power leads from the power supply.  1 is a multi-wire 
cable that plugs into the card cage usually and the other is a large, #12, two 
wire that goes from the heavy terminal on the rear of the supply to the main 
chassis set of terminals, usually in the upper right.

The multi-wire cable hopefully is there.  It is just wirings coming out of the 
PS chassis and carries the low current 9.6V and 13.8V.  The larger 2 wire is 
easy to make and supplies the power for the PA.

73, ron, n9ee/r



From: [EMAIL PROTECTED]
Date: 2008/03/29 Sat AM 07:51:35 CDT
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Compa Station Help


The reason the power supply leads are missing is that I 
got it from the local used supply store.  They had taken 
every thing out of the cabinet and were going to sell the 
cabinet and power supply seperate and probably throw the 
rest out.

Vern

On Sat, 29 Mar 2008 06:43:36 -
  tallinson2 [EMAIL PROTECTED] wrote:
 Actually, I wouldn't be too concerned about the 
condition of the rest
 of the station.  As stated earlier, the channel elements 
are often
 removed to prevent operation on the previous user's 
channel.  Not a
 big deal.  The cards are often kept as spares, 
particularly if the
 station was disposed of through a repair shop.  The 
missing PA power
 leads are a bit unusual but, at most, five minutes to 
replace them. 
 If you want to make a repeater, you don't need an 
antenna relay but
 they can be found too, if needed.  I wish I had a dollar 
for every ham
 repeater that is made from converted mobiles, these are 
ALL
 intermittent duty transmitters.  With reduced power 
and a cooling
 fan (mainly for peace of mind) this station will be more 
reliable than
 80% of the so called continuous duty ham gear out there. 
 I'd take
 that station anyday in preference to a Kensu desktop 
repeater. 
 The receiver is easily converted with a recoiled RF 
front end
 available very reasonably.  Your biggest challenge is 
going to be that
 HIGH split transmitter.
 Tom
 
 --- In Repeater-Builder@yahoogroups.com, Milt 
[EMAIL PROTECTED] wrote:

 Intermittent duty base station that has been robbed of 
parts.
 
 No channel elements in the receiver, probably none in 
the transmitter.
 No station control card.  No high current leads to the 
final.  As
 noted by 
 earlier posts this is not a unit that will handle long 
periods of 
 transmission.  Also no antenna relay (not that you need 
one for what
 you 
 want to do).
 
 Given the number of missing parts I would be very 
suspicious of the
 overall 
 condition of the unit.
 
 Milt
 N3LTQ
 
 
 - Original Message - 
 From: [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Friday, March 28, 2008 9:01 PM
 Subject: Re: [Repeater-Builder] Compa Station Help
 
 
  How about some pictures?  They are a little big and 
some
  are redundant but hopefully it should give you guys 
some
  idea of what I have.
 
  http://www.highwayusa.com/motorola/pict0001.jpg
  http://www.highwayusa.com/motorola/pict0002.jpg
  http://www.highwayusa.com/motorola/pict0003.jpg
  http://www.highwayusa.com/motorola/pict0004.jpg
  http://www.highwayusa.com/motorola/pict0005.jpg
 
 
  Vern
 
  On Fri, 28 Mar 2008 19:12:06 -0500 (CDT)
   Ron Wright [EMAIL PROTECTED] wrote:
  Vern,
 
  Usually the easiest way to find what band and band
 segment it are on is to look at the Channel Elements, 
the
 small cans in the exciter and receiver.  They unplug. 
 A
 label on the top of the cans gives its frequency.
  However, to prevent them being put back on the same 
freq
 some pull the elements.  Most always one can get to 
them
 thru a panel behind the receiver.  Same with some
 exciters.
 
  There were 3 ranges for VHF as someone stated.
 
  Wonder what the heat sink looks like.  The continuous
 duty has large 17w x 7h x 6 deep heat sink. 
 Otherwise
 it is built into the main chassis or is tube amp.
 
  Mot made a number of variations of these.  They do 
make
 good repeaters.  Just takes some work.
 
  One clue if it is a repeater and not a base station 
is
 the card cage usually has a Squelch Gate card.  This
 controls rx to tx keying.
 
  I think others gave you lots of good info with the
 repeater builders site.
 
  The power supply tells lots.  Might describe it.
 
  73, ron, n9ee/r
 
 
 
 From: [EMAIL PROTECTED]
 Date: 2008/03/28 Fri PM 01:19:10 CDT
 To: Repeater-Builder@yahoogroups.com
 Subject: [Repeater-Builder] Compa Station Help
 
 
 I have a Compa Station with the model number
 C73RTB-1106C.
 
 I am looking for some help figuring out what this is
 split, etc and how to make it into a repeater.
 
 First things first is that there is no power leads 
hooked
 up except for the one to the control board box.  I 
can
 see
 where there are places for heavy cables from the 
power
 supply to the transmitter.  Is there seperate power 
for
 the receiver or does that come from the ribbon cable?
 
 How can