RE: [Repeater-Builder] Kenwood Repeater question

2008-03-23 Thread Yahoo
The COS signal can be changed by using the 760(TOR) firmware. While I would
not use a low power 25 watt unit, a H series turned down to 20 watts will
perform very well. While the heat sink appears to be a small footprint, it
uses the entire frame and was designed by NASA for maximum heat dissipation
(as long as the glue holds on the tile!). The Icom IC-Fx21 series radio uses
the same design. Make sure the radio is mounted horizontally with free air
flow. Do not stack mobiles on top of each other no matter what brand you end
up using. If you add a computer style fan to push air up through the heat
sink fins the radio will run continuously at 10-15 watts dependant on
ambient temperature. You can use a KCT-19 cable or make your own with
standard Molex ZHR conn / SZH pin mini connectors and Molex .062 connectors.
If you want the Digikey part numbers I can send them to you.

Jeff



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon
Sent: Sunday, March 23, 2008 10:15 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Kenwood Repeater question

Peter,

In addition to its very limited heat sink area due to its compact size, the
TK-760 has one deficiency that limits its usefulness as a receiver in a
repeater system:  The COS signal that is available with the KCT-19 accessory
cable is carrier only; the radio has no signal that indicates when a carrier
with the proper CTCSS or CDCSS tone is received.  If you plan to run your
repeater with carrier squelch only, this will not be a problem.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota
Summerhawk
Sent: Saturday, March 22, 2008 11:43 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Kenwood Repeater question

I have a few of the TK-760's that I have been playing with the idea of
thinking of using as a repeater, can this be done? And if so what would it
take? 

Thanks 

Peter Dakota Summerhawk






Yahoo! Groups Links





RE: [Repeater-Builder] Kenwood Repeater question

2008-03-23 Thread Eric Lemmon
Peter,

In addition to its very limited heat sink area due to its compact size, the
TK-760 has one deficiency that limits its usefulness as a receiver in a
repeater system:  The COS signal that is available with the KCT-19 accessory
cable is carrier only; the radio has no signal that indicates when a carrier
with the proper CTCSS or CDCSS tone is received.  If you plan to run your
repeater with carrier squelch only, this will not be a problem.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota
Summerhawk
Sent: Saturday, March 22, 2008 11:43 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Kenwood Repeater question

I have a few of the TK-760's that I have been playing with the idea of
thinking of using as a repeater, can this be done? And if so what would it
take? 

Thanks 

Peter Dakota Summerhawk



RE: [Repeater-Builder] Kenwood Repeater question

2008-03-22 Thread k7pfj
Peter,

They will cover the ham bands and work very well at that.

Mike

-- Original message -- 
From: "Peter Dakota Summerhawk" <[EMAIL PROTECTED]> 
Ok the reason I asked is that we are thinking of putting up a repeater for 
special events. Would a couple of GM or GR300 work well for this? I know you 
cold not use them full duty 100% but they would work for temp special event 
repeaters? I have yet to find a couple of 2CH models that cover the ham bands. 
Anyone know of a source of the units?

Thanks
Peter Dakota Summerhawk

-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of 
Mike Mullarkey
Sent: Saturday, March 22, 2008 1:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Kenwood Repeater question

Hi Peter,

The TK-760 radios are great radios; however, I would post them on EBay and get 
a few Motorola SM-50 radios. All the connections are on the back on the 
Motorola and on the Kenwood, you will need to modify the radios to get TOR (PL) 
out of it and know where exactly to pick it off. If you get the Motorola radios 
try to get the high power radios and they will play nice at 20wt. Not in 
Continuous duty mode. Now if you drill out the 4 screw holes on the bottom and 
mill the bottom of the radio so then you can add a nice heat sink to it. Then 
they will operate in continuous mode but no more than 20wt.

The first version was to mount a small fan on the bottom but ended up using the 
heat sink method and found it much more reliable.

I have had more than 30+ full duplex links made out of these radios and have 
never had a unit fail. Take your time and plan your project and it will pay off 
if you do it the right way.

Mike Mullarkey (K7PFJ)





From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of 
Peter Dakota Summerhawk
Sent: Saturday, March 22, 2008 12:43 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Kenwood Repeater question

I have a few of the TK-760’s that I have been playing with the idea of thinking 
of using as a repeater, can this be done? And if so what would it take?

Thanks

Peter Dakota Summerhawk


No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date: 3/21/2008 5:52 
PM


No virus found in this incoming message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date: 3/22/2008 4:43 
PM



No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date: 3/22/2008 4:43 
PM

 

RE: [Repeater-Builder] Kenwood Repeater question

2008-03-22 Thread Peter Dakota Summerhawk
Ok the reason I asked is that we are thinking of putting up a repeater
for special events. Would a couple of GM or GR300 work well for this? I
know you cold not use them full duty 100% but they would work for temp
special event repeaters? I have yet to find a couple of 2CH models that
cover the ham bands. Anyone know of a source of the units?
 
Thanks
Peter Dakota Summerhawk
 
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Mullarkey
Sent: Saturday, March 22, 2008 1:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Kenwood Repeater question
 
Hi Peter,
 
The TK-760 radios are great radios; however, I would post them on EBay
and get a few Motorola SM-50 radios. All the connections are on the back
on the Motorola and on the Kenwood, you will need to modify the radios
to get TOR (PL) out of it and know where exactly to pick it off. If you
get the Motorola radios try to get the high power radios and they will
play nice at 20wt. Not in Continuous duty mode. Now if you drill out the
4 screw holes on the bottom and mill the bottom of the radio so then you
can add a nice heat sink to it. Then they will operate in continuous
mode but no more than 20wt.
 
The first version was to mount a small fan on the bottom but ended up
using the heat sink method and found it much more reliable.
 
I have had more than 30+ full duplex links made out of these radios and
have never had a unit fail. Take your time and plan your project and it
will pay off if you do it the right way.
 
Mike Mullarkey (K7PFJ)
 
 
   _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota
Summerhawk
Sent: Saturday, March 22, 2008 12:43 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Kenwood Repeater question
 
I have a few of the TK-760’s that I have been playing with the idea of
thinking of using as a repeater, can this be done? And if so what would
it take?
 
Thanks
 
Peter Dakota Summerhawk
 
 
No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date:
3/21/2008 5:52 PM
 

No virus found in this incoming message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date:
3/22/2008 4:43 PM


No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date:
3/22/2008 4:43 PM
 


RE: [Repeater-Builder] Kenwood Repeater question

2008-03-22 Thread Mike Mullarkey
Hi Peter,

 

The TK-760 radios are great radios; however, I would post them on EBay and
get a few Motorola SM-50 radios. All the connections are on the back on the
Motorola and on the Kenwood, you will need to modify the radios to get TOR
(PL) out of it and know where exactly to pick it off. If you get the
Motorola radios try to get the high power radios and they will play nice at
20wt. Not in Continuous duty mode. Now if you drill out the 4 screw holes on
the bottom and mill the bottom of the radio so then you can add a nice heat
sink to it. Then they will operate in continuous mode but no more than 20wt.

 

The first version was to mount a small fan on the bottom but ended up using
the heat sink method and found it much more reliable.

 

I have had more than 30+ full duplex links made out of these radios and have
never had a unit fail. Take your time and plan your project and it will pay
off if you do it the right way.

 

Mike Mullarkey (K7PFJ)

 

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota
Summerhawk
Sent: Saturday, March 22, 2008 12:43 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Kenwood Repeater question

 

I have a few of the TK-760's that I have been playing with the idea of
thinking of using as a repeater, can this be done? And if so what would it
take?

 

Thanks

 

Peter Dakota Summerhawk

 

 

No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date: 3/21/2008
5:52 PM

 



[Repeater-Builder] Kenwood Repeater question

2008-03-22 Thread Peter Dakota Summerhawk
I have a few of the TK-760’s that I have been playing with the idea of
thinking of using as a repeater, can this be done? And if so what would
it take?
 
Thanks
 
Peter Dakota Summerhawk
 

No virus found in this outgoing message.
Checked by AVG. 
Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date:
3/21/2008 5:52 PM