Topics

Kenwood TM-281A with PI-Irlp node

Milt Duquette
 

Good afternoon

Has anyone hooked a Kenwood TM-281a to pi-irlp node?
Is there any suggestions?

I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too.

Need some help  instead of tying up a Kenwood TM-D710g dual bander.


VE6MLD

Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



Ken Arck
 

Have a look:

https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf

Ken



At 05:54 PM 6/28/2020, you wrote:
Good afternoon

Has anyone hooked a Kenwood TM-281a to pi-irlp node?
Is there any suggestions?

I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too.

Need some help  instead of tying up a Kenwood TM-D710g dual bander.


VE6MLD

Thanks
Â

Milt Duquette

1 (403) 928-1000 (cell)

Web: Â http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


[]  

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         filename*1=.jpg
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------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Milt Duquette
 

I have looked at that and we done all that but it is a newer amplifie audio chip.  We have noise in the transmit audio and it doesn’t decode dtmf audio


On Jun 28, 2020, at 7:24 PM, Ken Arck <ken@...> wrote:

 Have a look:

https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf

Ken



At 05:54 PM 6/28/2020, you wrote:
Good afternoon

Has anyone hooked a Kenwood TM-281a to pi-irlp node?
Is there any suggestions?

I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too.

Need some help  instead of tying up a Kenwood TM-D710g dual bander.


VE6MLD

Thanks
Â

Milt Duquette

1 (403) 928-1000 (cell)

Web: Â http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<3a3639d9.jpg>
 

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         filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";
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Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Milt Duquette
 

We spent three days on it


On Jun 28, 2020, at 8:52 PM, Milt Duquette <miltduquette@...> wrote:

I have looked at that and we done all that but it is a newer amplifie audio chip.  We have noise in the transmit audio and it doesn’t decode dtmf audio


On Jun 28, 2020, at 7:24 PM, Ken Arck <ken@...> wrote:

 Have a look:

https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf

Ken



At 05:54 PM 6/28/2020, you wrote:
Good afternoon

Has anyone hooked a Kenwood TM-281a to pi-irlp node?
Is there any suggestions?

I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too.

Need some help  instead of tying up a Kenwood TM-D710g dual bander.


VE6MLD

Thanks
Â

Milt Duquette

1 (403) 928-1000 (cell)

Web: Â http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<3a3639d9.jpg>
 

Content-Disposition: inline;
         filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";
         filename*1=.jpg
Content-Type: image/jpeg;
         x-unix-mode=0666;
         name="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg"
Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Ken Arck
 

Ahhh OK, I do have the updates for the new audio IC. I'll get them to you tomorrow

Ken


At 07:52 PM 6/28/2020, you wrote:
I have looked at that and we done all that but it is a newer amplifie audio chip.  We have noise in the transmit audio and it doesn’t decode dtmf audio
On Jun 28, 2020, at 7:24 PM, Ken Arck <ken@...> wrote:
 Have a look: https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf Ken At 05:54 PM 6/28/2020, you wrote:
Good afternoon Has anyone hooked a Kenwood TM-281a to pi-irlp node? Is there any suggestions? I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too. Need some help  instead of tying up a Kenwood TM-D710g dual bander. VE6MLD Thanks  Milt Duquette 1 (403) 928-1000 (cell) Web:  http://www.photosbymilt.ca Emails: miltduquette@... Twitter: @milt_duquette
<3a3639d9.jpg>
  Content-Disposition: inline;          filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";  filename*1=.jpg Content-Type: image/jpeg;       x-unix-mode=0666;       name="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg" Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>
------------------------------------------------------------------------------ President and CTO - Arcom Controllers Makers of repeater controllers and accessories. https://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave. We we offer complete turn-key repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net "We don't just make 'em. We use 'em!" []
------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Milt Duquette
 

Good afternoon Ken,

Mine has the 12 pin audio amp LA4631 with 2 hold down bolts

Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



On Jun 28, 2020, at 10:25 PM, Ken Arck <ken@...> wrote:

Ahhh OK, I do have the updates for the new audio IC. I'll get them to you tomorrow

Ken


At 07:52 PM 6/28/2020, you wrote:
I have looked at that and we done all that but it is a newer amplifie audio chip.  We have noise in the transmit audio and it doesn’t decode dtmf audio
On Jun 28, 2020, at 7:24 PM, Ken Arck <ken@...> wrote:
 Have a look: https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf Ken At 05:54 PM 6/28/2020, you wrote:
Good afternoon Has anyone hooked a Kenwood TM-281a to pi-irlp node? Is there any suggestions? I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too. Need some help  instead of tying up a Kenwood TM-D710g dual bander. VE6MLD Thanks  Milt Duquette 1 (403) 928-1000 (cell) Web:  http://www.photosbymilt.ca Emails: miltduquette@... Twitter: @milt_duquette
<3a3639d9.jpg>
  Content-Disposition: inline;          filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";  filename*1=.jpg Content-Type: image/jpeg;       x-unix-mode=0666;       name="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg" Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>
------------------------------------------------------------------------------ President and CTO - Arcom Controllers Makers of repeater controllers and accessories. https://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave. We we offer complete turn-key repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net "We don't just make 'em. We use 'em!" []

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Ken Arck
 


Hi Milt

Does the attached look right?




At 12:12 PM 6/29/2020, you wrote:
Good afternoon Ken,

Mine has the 12 pin audio amp LA4631 with 2 hold down bolts

Thanks
Â

Milt Duquette

1 (403) 928-1000 (cell)

Web: Â http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


[]  

On Jun 28, 2020, at 10:25 PM, Ken Arck <ken@... > wrote:

Ahhh OK, I do have the updates for the new audio IC. I'll get them to you tomorrow

Ken


At 07:52 PM 6/28/2020, you wrote:
I have looked at that and we done all that but it is a newer amplifie audio chip.  We have noise in the transmit audio and it doesn’t decode dtmf audio
On Jun 28, 2020, at 7:24 PM, Ken Arck <ken@... > wrote:
 Have a look: https://www.arcomcontrollers.com/documents/rc210/tm-281a_mod.pdf Ken At 05:54 PM 6/28/2020, you wrote:
Good afternoon Has anyone hooked a Kenwood TM-281a to pi-irlp node? Is there any suggestions? I have a DB9 female cable and hole drilled into back of of the radicand got the pinout of db9 too. Need some help  instead of tying up a Kenwood TM-D710g dual bander. VE6MLD Thanks  Milt Duquette 1 (403) 928-1000 (cell) Web:  http://www.photosbymilt.ca Emails: miltduquette@... Twitter: @milt_duquette
<3a3639d9.jpg>
  Content-Disposition: inline;        filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";  filename*1=.jpg Content-Type: image/jpeg;       x-unix-mode=0666;       name="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg" Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>
------------------------------------------------------------------------------ President and CTO - Arcom Controllers Makers of repeater controllers and accessories. https://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave. We we offer complete turn-key repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net "We don't just make 'em. We use 'em!" []

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]  

Content-Disposition: inline;
         filename*0="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175";
         filename*1=.jpg
Content-Type: image/jpeg;
         x-unix-mode=0666;
         name="Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg"
Content-Id: <F454BFEC-8875-4A6F-B8FE-1FAF1B20150B>

------------------------------------------------------------------------------
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories.
https://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave.
We we offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"
[]

Milt Duquette
 

Good afternoon Ken

Yes the chip looks right and we did the same modes to it

But the COS is always on the irlp even if we change the jumper to high or low   until u physically turn off the radio. The tx light lights up when transmit comes on . When the IRLP node is transmitting it has noise and hum behind it and loud

When I key  the radio it does not turn on the irlp node yellow led for DTMF
The radio works ok by itself.

The Kenwood TM-D710G works great on the irlp levels all ok..

You have any recommendations.  This is a Raspberry Pi/IRLP node I purchase about a year ago.No Computer 



Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



On Jun 29, 2020, at 1:32 PM, Ken Arck <ken@...> wrote:

<20191103_173238.jpg>

Milt Duquette
 



Mine is the version 3 no wifi or bluetooth

Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



On Jun 29, 2020, at 1:32 PM, Ken Arck <ken@...> wrote:

<20191103_173238.jpg>

Milt Duquette
 

Good evening Ken

The latest phot yo sent us is that green wire to DTMF  a shielded wire?

Where would we find squelched audio ?

If possible could you get rid of the shadow above the dumf wire and paper to see where you are putting the ground.  Is that where the hum was coming from on transmit?











Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



On Jun 29, 2020, at 4:13 PM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good afternoon Ken

Yes the chip looks right and we did the same modes to it

But the COS is always on the irlp even if we change the jumper to high or low   until u physically turn off the radio. The tx light lights up when transmit comes on . When the IRLP node is transmitting it has noise and hum behind it and loud

When I key  the radio it does not turn on the irlp node yellow led for DTMF
The radio works ok by itself.

The Kenwood TM-D710G works great on the irlp levels all ok..

You have any recommendations.  This is a Raspberry Pi/IRLP node I purchase about a year ago.No Computer 



Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 1:32 PM, Ken Arck <ken@...> wrote:

<20191103_173238.jpg>


Milt Duquette
 

Good morning Ken



What is the difference  in Pre-ground on pin 3 versus power ground on Pin 10?

Is that where our hum noise coming from on Power ground.  So have to move the wire from pin 10- pin 3?
The book it came with my new radio  doesn’t have the new ic in the schematics . Hope you can send me the new version of schematics and printouts. 

VE6MLD
Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette



On Jun 29, 2020, at 8:10 PM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good evening Ken

The latest phot yo sent us is that green wire to DTMF  a shielded wire?

Where would we find squelched audio ?

If possible could you get rid of the shadow above the dumf wire and paper to see where you are putting the ground.  Is that where the hum was coming from on transmit?




<image0.jpeg>



<image1.jpeg>




Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 4:13 PM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good afternoon Ken

Yes the chip looks right and we did the same modes to it

But the COS is always on the irlp even if we change the jumper to high or low   until u physically turn off the radio. The tx light lights up when transmit comes on . When the IRLP node is transmitting it has noise and hum behind it and loud

When I key  the radio it does not turn on the irlp node yellow led for DTMF
The radio works ok by itself.

The Kenwood TM-D710G works great on the irlp levels all ok..

You have any recommendations.  This is a Raspberry Pi/IRLP node I purchase about a year ago.No Computer 



Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 1:32 PM, Ken Arck <ken@...> wrote:

<20191103_173238.jpg>



Milt Duquette
 

My service manual is dated 2011



On Jun 30, 2020, at 9:38 AM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good morning Ken



What is the difference  in Pre-ground on pin 3 versus power ground on Pin 10?

Is that where our hum noise coming from on Power ground.  So have to move the wire from pin 10- pin 3?
The book it came with my new radio  doesn’t have the new ic in the schematics . Hope you can send me the new version of schematics and printouts. 

VE6MLD
Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 8:10 PM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good evening Ken

The latest phot yo sent us is that green wire to DTMF  a shielded wire?

Where would we find squelched audio ?

If possible could you get rid of the shadow above the dumf wire and paper to see where you are putting the ground.  Is that where the hum was coming from on transmit?




<image0.jpeg>



<image1.jpeg>




Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 4:13 PM, Milt Duquette via groups.io <Miltduquette@...> wrote:

Good afternoon Ken

Yes the chip looks right and we did the same modes to it

But the COS is always on the irlp even if we change the jumper to high or low   until u physically turn off the radio. The tx light lights up when transmit comes on . When the IRLP node is transmitting it has noise and hum behind it and loud

When I key  the radio it does not turn on the irlp node yellow led for DTMF
The radio works ok by itself.

The Kenwood TM-D710G works great on the irlp levels all ok..

You have any recommendations.  This is a Raspberry Pi/IRLP node I purchase about a year ago.No Computer 



Thanks
 

Milt Duquette

1 (403) 928-1000 (cell)

Web:  http://www.photosbymilt.ca

Emails:

miltduquette@...

Twitter: @milt_duquette


<Milt's Overlay Logo - Black on White 1 x1-1-Quick Preset_175x175.jpg>

On Jun 29, 2020, at 1:32 PM, Ken Arck <ken@...> wrote:

<20191103_173238.jpg>