I previously got the CM108 sound fob from startech and had to solder to the tiny pin.
With this one
http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025
It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED.
If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT?
Skyler KD0WHB
Skyler,�� Short answer is No!
My experience with the sound fobs that look similar to yours , You
will still need to solder to Pin 13 to get the PTT logic. No way
around that as on the CM-108 chip Pin 13 is not connected to
anything so no place else to get that logic other than soldering a
wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten from the
left side of the volume down switch SW1 if you want to avoid
soldering the COS line to Pin 48 on the sound chip. CTCSS can be
retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.�
The Red Led on the Fob is **NOT** the same as the PTT LED
indicated on the modification schematic.
In fact if you go here [](http://www.crompton.com/hamradio/usb_fob_modification/)
You will find a good description of the connections on that
particular fob.
Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
http://www.crompton.com/hamradio/usb_fob_modification/
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Ok, I’ll just solder the pin, just making sure.
It’s weird you can’t switch the gpio pin for PTT in software.
Skyler, Short answer is No!
My experience with the sound fobs that look similar to yours , You
will still need to solder to Pin 13 to get the PTT logic. No way
around that as on the CM-108 chip Pin 13 is not connected to
anything so no place else to get that logic other than soldering a
wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten from the
left side of the volume down switch SW1 if you want to avoid
soldering the COS line to Pin 48 on the sound chip. CTCSS can be
retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.
The Red Led on the Fob is **NOT** the same as the PTT LED
indicated on the modification schematic.
In fact if you go here [](http://www.crompton.com/hamradio/usb_fob_modification/)
You will find a good description of the connections on that
particular fob.
Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
http://www.crompton.com/hamradio/usb_fob_modification/
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Where do you want to switch it to?
On 10/13/2015 8:08 AM, Skyler Fennell
wrote:
Ok, I’ll just solder the pin, just making sure.�
It’s weird you can’t switch the gpio pin for PTT in software.
On Oct 12, 2015, at 11:54 PM, larry < >
wrote:
_______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
Skyler,�� Short answer is No!
My experience with the sound fobs that look similar to yours
, You will still need to solder to Pin 13 to get the PTT
logic. No way around that as on the CM-108 chip Pin 13 is
not connected to anything so no place else to get that logic
other than soldering a wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten
from the left side of the volume down switch SW1 if you want
to avoid soldering the COS line to Pin 48 on the sound chip.
CTCSS can be retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.�
The Red Led on the Fob is **NOT** the same as the PTT
LED indicated on the modification schematic.
In fact if you go here You will find a good description of the connections on that
particular fob.
Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
http://www.crompton.com/hamradio/usb_fob_modification/
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
To the pin with the red LED
On 10/13/2015 8:08 AM, Skyler Fennell
wrote:
Ok, I’ll just solder the pin, just making sure.
It’s weird you can’t switch the gpio pin for PTT in software.
On Oct 12, 2015, at 11:54 PM, larry < >
wrote:
_______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
Skyler, Short answer is No!
My experience with the sound fobs that look similar to yours
, You will still need to solder to Pin 13 to get the PTT
logic. No way around that as on the CM-108 chip Pin 13 is
not connected to anything so no place else to get that logic
other than soldering a wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten
from the left side of the volume down switch SW1 if you want
to avoid soldering the COS line to Pin 48 on the sound chip.
CTCSS can be retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.
The Red Led on the Fob is **NOT** the same as the PTT
LED indicated on the modification schematic.
In fact if you go here You will find a good description of the connections on that
particular fob.
Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
http://www.crompton.com/hamradio/usb_fob_modification/
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-usershttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.
On 10/13/2015 8:25 AM, Skyler Fennellwrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman <szingman@msgstor.com >wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, SkylerFennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT insoftware.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com >
wrote:
Skyler, Short answer isNo!
My experience with the sound fobs that look similar toyours , You will still need to solder to Pin 13 to get
the PTT logic. No way around that as on the CM-108
chip Pin 13 is not connected to anything so no place
else to get that logic other than soldering a wire to
the pin.As for the COS signal (CM-108 Pin 48) that can begotten from the left side of the volume down switch
SW1 if you want to avoid soldering the COS line to Pin
48 on the sound chip. CTCSS can be retrieved from the
right side of volume up SW2The Green LED is still the heartbeat indicator. The Red Led on the Fob is **NOT** the same as thePTT LED indicated on the modification schematic.
In fact if you go here [http://www.crompton.com/hamradio/usb_fob_modification/](http://www.crompton.com/hamradio/usb_fob_modification/) You will find a good description of the connections onthat particular fob.
Larry - N7FM On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
–
Skyler Fennell
amsatnet.info
KDØWHB
Parts count
economy of scale (mass production)
Features
I'm not saying anything good or bad about the price of a URI type
device.
When I built the URI clone on repeater builder, cost was about $20.
73, Steve N4IRS
On 10/13/2015 8:44 AM, Skyler F wrote:
Oh. Well thanks for the replies. I don't see howthe URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, SteveZingman szingman@msgstor.com
wrote:That is the Mute LED.If you mute the CM108 there may be no audio.
On 10/13/2015 8:25 AM, Skyler Fennell wrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman < >wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, Skyler Fennellwrote:
Ok, I'll just solder the pin, just makingsure.
It's weird you can't switch the gpio pinfor PTT in software.
On Oct 12, 2015, at 11:54 PM, larry < >
wrote:
Skyler, Short answer is No!
My experience with the sound fobs thatlook similar to yours , You will still
need to solder to Pin 13 to get the PTT
logic. No way around that as on the
CM-108 chip Pin 13 is not connected to
anything so no place else to get that
logic other than soldering a wire to the
pin.As for the COS signal (CM-108 Pin 48)that can be gotten from the left side of
the volume down switch SW1 if you want
to avoid soldering the COS line to Pin
48 on the sound chip. CTCSS can be
retrieved from the right side of volume
up SW2The Green LED is still the heartbeatindicator.
The Red Led on the Fob is NOT
the same as the PTT LED indicated on the
modification schematic.In fact if you go here [](http://www.crompton.com/hamradio/usb_fob_modification/) You will find a good description of theconnections on that particular fob.
Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell
wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
–
Skyler Fennell
amsatnet.info
KDØWHB
Why?
One is made as a generic part meant to be sold by the millions and assembled by workers making a couple cents an hour requiring time and effort on your part to modify and the other was designed to do a specific job and sold in relatively few numbers for a specific purpose.
I’ve never has an issue with a DMK dongle-- they just work. Way past the thrill of spending time modifying parts to do what it wasn’t designed to do to save a few bucks. My time is worth more than $60 or $70 an hour and would rather spend it actually tweaking the system than getting it to run in the first place.
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
On Oct 13, 2015, at 08:44, Skyler F electricity440@gmail.com wrote:
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.
On 10/13/2015 8:25 AM, Skyler Fennellwrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman <szingman@msgstor.com >wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, SkylerFennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT insoftware.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com >
wrote:
Skyler, Short answer isNo!
My experience with the sound fobs that look similar toyours , You will still need to solder to Pin 13 to get
the PTT logic. No way around that as on the CM-108
chip Pin 13 is not connected to anything so no place
else to get that logic other than soldering a wire to
the pin.As for the COS signal (CM-108 Pin 48) that can begotten from the left side of the volume down switch
SW1 if you want to avoid soldering the COS line to Pin
48 on the sound chip. CTCSS can be retrieved from the
right side of volume up SW2The Green LED is still the heartbeat indicator. The Red Led on the Fob is **NOT** the same as thePTT LED indicated on the modification schematic.
In fact if you go here [http://www.crompton.com/hamradio/usb_fob_modification/](http://www.crompton.com/hamradio/usb_fob_modification/) You will find a good description of the connections onthat particular fob.
Larry - N7FM On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
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–
Skyler Fennell
amsatnet.info
KDØWHB
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I am with you Bryan.
But we don’t need to be rough on the OP.
I on my side prefer to have something like a URI on a production repeater cause if there is a problem, I don’t want to search hi and low for a cold solder joint on a pin the size on fly dick. (well they look that small for me 
).
It must be because I worked on servicing high level security system and doing system integration that I think like that… the money is more then well spent for the simple reason that when something goes crazy, you don’t want more things to look at then you need.
Pierre VE2PF
From: Bryan D. Boyle
Sent: Tuesday, October 13, 2015 9:28 AM
Subject: Re: [App_rpt-users] Quick sound fob question
Why?
One is made as a generic part meant to be sold by the millions and assembled by workers making a couple cents an hour requiring time and effort on your part to modify and the other was designed to do a specific job and sold in relatively few numbers for a specific purpose.
I’ve never has an issue with a DMK dongle-- they just work. Way past the thrill of spending time modifying parts to do what it wasn’t designed to do to save a few bucks. My time is worth more than $60 or $70 an hour and would rather spend it actually tweaking the system than getting it to run in the first place.
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
On Oct 13, 2015, at 08:44, Skyler F electricity440@gmail.com wrote:
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.On 10/13/2015 8:25 AM, Skyler Fennell wrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman szingman@msgstor.com wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, Skyler Fennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT in software.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com > wrote:
Skyler, Short answer is No!
My experience with the sound fobs that look similar to yours , You will still need to solder to Pin 13 to get the PTT logic. No way around that as on the CM-108 chip Pin 13 is not connected to anything so no place else to get that logic other than soldering a wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten from the left side of the volume down switch SW1 if you want to avoid soldering the COS line to Pin 48 on the sound chip. CTCSS can be retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.
The Red Led on the Fob is NOT the same as the PTT LED indicated on the modification schematic.In fact if you go here http://www.crompton.com/hamradio/usb_fob_modification/
You will find a good description of the connections on that particular fob.Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
_______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
–
Skyler Fennell
amsatnet.info
KDØWHB
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Thus the beauty of ham radio!
Those that want to homebrew can… Those that don’t want to; can buy it ready made!
Some of us like to engineer and build, troubleshoot and use. Others who’s time is more valuable or limited, just buy
what they need.
This is why my HF linear amplifiers are home brew! On the other hand… I also have a Nano Node. Go figure.
73
Jim W7RY
From: Pete M
Sent: Tuesday, October 13, 2015 6:48 AM
To: Bryan D. Boyle ; app_rpt-users@ohnosec.org
Subject: Re: [App_rpt-users] Quick sound fob question
I am with you Bryan.
But we don’t need to be rough on the OP.
I on my side prefer to have something like a URI on a production repeater cause if there is a problem, I don’t want to search hi and low for a cold solder joint on a pin the size on fly dick. (well they look that small for me
).
It must be because I worked on servicing high level security system and doing system integration that I think like that… the money is more then well spent for the simple reason that when something goes crazy, you don’t want more things to look at then you need.
Pierre VE2PF
From: Bryan D. Boyle
Sent: Tuesday, October 13, 2015 9:28 AM
Subject: Re: [App_rpt-users] Quick sound fob question
Why?
One is made as a generic part meant to be sold by the millions and assembled by workers making a couple cents an hour requiring time and effort on your part to modify and the other was designed to do a specific job and sold in relatively few numbers for a specific purpose.
I’ve never has an issue with a DMK dongle-- they just work. Way past the thrill of spending time modifying parts to do what it wasn’t designed to do to save a few bucks. My time is worth more than $60 or $70 an hour and would rather spend it actually tweaking the system than getting it to run in the first place.
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
On Oct 13, 2015, at 08:44, Skyler F electricity440@gmail.com wrote:
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.On 10/13/2015 8:25 AM, Skyler Fennell wrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman szingman@msgstor.com wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, Skyler Fennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT in software.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com > wrote:
Skyler, Short answer is No!
My experience with the sound fobs that look similar to yours , You will still need to solder to Pin 13 to get the PTT logic. No way around that as on the CM-108 chip Pin 13 is not connected to anything so no place else to get that logic other than soldering a wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten from the left side of the volume down switch SW1 if you want to avoid soldering the COS line to Pin 48 on the sound chip. CTCSS can be retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.
The Red Led on the Fob is NOT the same as the PTT LED indicated on the modification schematic.In fact if you go here http://www.crompton.com/hamradio/usb_fob_modification/
You will find a good description of the connections on that particular fob.Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
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–
Skyler Fennell
amsatnet.info
KDØWHB
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I guess that is part of being a ham and wanting to experiment and build or modify something. When I could buy 10 for $10 and spend maybe 10 minutes to modify one, it is worth my time to save some money. Even with buying 10 and modding them is still doesn’t cost what a dmk uri cost.
To each their own but I will stick to the ham radio side of things and try it myself first!
Corey n3fe
Sent from my iPhone
On Oct 13, 2015, at 9:28 AM, Bryan D. Boyle bdboyle@bdboyle.com wrote:
Why?
One is made as a generic part meant to be sold by the millions and assembled by workers making a couple cents an hour requiring time and effort on your part to modify and the other was designed to do a specific job and sold in relatively few numbers for a specific purpose.
I’ve never has an issue with a DMK dongle-- they just work. Way past the thrill of spending time modifying parts to do what it wasn’t designed to do to save a few bucks. My time is worth more than $60 or $70 an hour and would rather spend it actually tweaking the system than getting it to run in the first place.
And I have no financial interest in DMK or anything else around this system.
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
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On Oct 13, 2015, at 08:44, Skyler F electricity440@gmail.com wrote:
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.
On 10/13/2015 8:25 AM, Skyler Fennellwrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman <szingman@msgstor.com >wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, SkylerFennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT insoftware.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com >
wrote:
Skyler, Short answer isNo!
My experience with the sound fobs that look similar toyours , You will still need to solder to Pin 13 to get
the PTT logic. No way around that as on the CM-108
chip Pin 13 is not connected to anything so no place
else to get that logic other than soldering a wire to
the pin.As for the COS signal (CM-108 Pin 48) that can begotten from the left side of the volume down switch
SW1 if you want to avoid soldering the COS line to Pin
48 on the sound chip. CTCSS can be retrieved from the
right side of volume up SW2The Green LED is still the heartbeat indicator. The Red Led on the Fob is **NOT** the same as thePTT LED indicated on the modification schematic.
In fact if you go here [http://www.crompton.com/hamradio/usb_fob_modification/](http://www.crompton.com/hamradio/usb_fob_modification/) You will find a good description of the connections onthat particular fob.
Larry - N7FM On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
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–
Skyler Fennell
amsatnet.info
KDØWHB
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To some extent you are comparing oranges and tangerines. 
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.
73, Steve N4IRS
not being rough, just blatantly honest. it comes down to what is worth more: getting a machine working (the goal) or fiddling with components (expending time and lots of aggida) to do something that is already available off the shelf? (the process)
See it all the time, and I’ve been melting solder for decades. Built my first computer (IMSAI 8080) in '76. was fun then, but we had no options, right? Hand loading the bootstrap on a front panel. Paper tape. Now? Not so much.
As I get older, efficiency of time expended is more important than saving a minor amount of $. What’s that old saying? “when you’re up to your derriere in alligators, it’s hard to remember your initial job was to drain the swamp”
Just a personal opinion, that’s all. I like homebrew as much as the next; but I focus on things that aren’t available off the shelf for a reasonable cost. Cuts down on the debugging and failure points and gets you to the goal faster so you can concentrate on actually getting the device to do what you want without the question of whether your modifications are causing the issue or the software being squirelly.
–
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
On Oct 13, 2015, at 09:48, Pete M petem001@hotmail.com wrote:
I am with you Bryan.
But we don’t need to be rough on the OP.
I on my side prefer to have something like a URI on a production repeater cause if there is a problem, I don’t want to search hi and low for a cold solder joint on a pin the size on fly dick. (well they look that small for me <wlEmoticon-winkingsmile[1].png> ).
It must be because I worked on servicing high level security system and doing system integration that I think like that… the money is more then well spent for the simple reason that when something goes crazy, you don’t want more things to look at then you need.
Pierre VE2PF
From: Bryan D. Boyle
Sent: Tuesday, October 13, 2015 9:28 AM
Subject: Re: [App_rpt-users] Quick sound fob question
Why?
One is made as a generic part meant to be sold by the millions and assembled by workers making a couple cents an hour requiring time and effort on your part to modify and the other was designed to do a specific job and sold in relatively few numbers for a specific purpose.
I’ve never has an issue with a DMK dongle-- they just work. Way past the thrill of spending time modifying parts to do what it wasn’t designed to do to save a few bucks. My time is worth more than $60 or $70 an hour and would rather spend it actually tweaking the system than getting it to run in the first place.
And I have no financial interest in DMK or anything else around this system.
Bryan
Sent from my iPhone 6S…No electrons were harmed in the sending of this message.
_______________________________________________App_rpt-users mailing listTo unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
On Oct 13, 2015, at 08:44, Skyler F electricity440@gmail.com wrote:
Oh. Well thanks for the replies. I don’t see how the URI is 25 times more expensive than the sound fob.
On Tue, Oct 13, 2015 at 6:36 AM, Steve Zingman szingman@msgstor.com wrote:
That is the Mute LED. If you mute the CM108 there may be no audio.On 10/13/2015 8:25 AM, Skyler Fennell wrote:
To the pin with the red LED
On Oct 13, 2015, at 6:23 AM, Steve Zingman szingman@msgstor.com wrote:
Where do you want to switch it to?
On 10/13/2015 8:08 AM, Skyler Fennell wrote:
Ok, I’ll just solder the pin, just making sure.
It's weird you can't switch the gpio pin for PTT in software.
On Oct 12, 2015, at 11:54 PM, larry <larry@n7fm.com > wrote:
Skyler, Short answer is No!
My experience with the sound fobs that look similar to yours , You will still need to solder to Pin 13 to get the PTT logic. No way around that as on the CM-108 chip Pin 13 is not connected to anything so no place else to get that logic other than soldering a wire to the pin.
As for the COS signal (CM-108 Pin 48) that can be gotten from the left side of the volume down switch SW1 if you want to avoid soldering the COS line to Pin 48 on the sound chip. CTCSS can be retrieved from the right side of volume up SW2
The Green LED is still the heartbeat indicator.
The Red Led on the Fob is NOT the same as the PTT LED indicated on the modification schematic.In fact if you go here http://www.crompton.com/hamradio/usb_fob_modification/
You will find a good description of the connections on that particular fob.Larry - N7FM
On 10/12/2015 06:23 PM, Skyler Fennell wrote:
I previously got the CM108 sound fob from startech and had to solder to the tiny pin. With this one [http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025](http://ebay.com/itm/291156304476?_mwBanner=1&varId=590306532025) It looks like it already has both LED's installed. I am assuming the red led is the same as the transmit LED. If this is so, does that mean I don't have to solder to the tiny pin on the CM108 and I can just drive a transistor with the same wire as the LED for PTT? Skyler KD0WHB _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) To unsubscribe from this list please visit [http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users](http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users) and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
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–
Skyler Fennell
amsatnet.info
KDØWHB
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The URI offers many extra features that most of us never touch. Great if really needed. I do like the "professional" look of the URI versus a (my) modified fob at a shared repeater building.
tnx
Mike / W5JR
Alpharetta GA
On Oct 13, 2015, at 10:13 AM, Steve Zingman <szingman@msgstor.com> wrote:
To some extent you are comparing oranges and tangerines.
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.73, Steve N4IRS
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My 2 cents...
Steve has it correct.
Fobs and URIx = different chips & different capabilities.
URIx has features plus trace connections to many pins that are not available or are not connected to in the FOB.
In my case I use them both but for different reasons. URIx has more GPIO access plus other features.
Nice package and can be used to control more complex functions on repeaters vs a dedicated simplex nodes.
I normally use a modified Fob when trying to assist/entice someone to get into Allstar.
Economics becomes a factor when someone hasn't a clue if the mode is something they even want to do.
In the mind of a newbie $35 for a Pi2 (computer = cheap).
Interfacing the computer to the radio (choice = $75 or say $5)
A no brainer for those just wanting to try the unknown. Twice the cost of the PC for an interface or $5?
The fact there is a choice is great and very much appreciated by myself and I'm sure many others.
Then again there are still people who like to tinker and modify fobs just for fun.
Larry - N7FM
On 10/13/2015 07:13 AM, Steve Zingman wrote:
To some extent you are comparing oranges and tangerines.
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.73, Steve N4IRS
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The URI offers many extra features that most of us never touch.
Such as? I've been thinking of producing a lower cost alternative, but realize that the cost of a GENUINE CM119 alone is more than you pay for a whole FOB from your favorite Chinese supplier. You then add the cost of an enclosure and board to the parts count, things add up pretty quickly.
Lay the schematics side by side. The URI type device offers quite a few features not provided by
a modified FOB.
My USB-RIM device went several steps further down the "additional features" path. It seems there are few people that want to pay for additional features or better engineering. <shrug>
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
On 10/13/2015 12:50 PM, W5JR Mike wrote:
The URI offers many extra features that most of us never touch. Great if really needed. I do like the "professional" look of the URI versus a (my) modified fob at a shared repeater building.
tnx
Mike / W5JR
Alpharetta GAOn Oct 13, 2015, at 10:13 AM, Steve Zingman <szingman@msgstor.com> wrote:
To some extent you are comparing oranges and tangerines.
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.73, Steve N4IRS
I expect many just use the RX/TX audio, a COS/RUS/CTCSS input, PTT and ground. Seldom both COS and CTCSS so that the cop command can switch from tone to carrier. And never use the extra GPIO pins for other things, like mic hang up for Tone/Carrier if separate COS/CTCSS aren't available, hi/low power on a remote or repeater, antenna 1 / 2 selection, discreet channel steering, porch light on/off, etc, etc. And if usbradio is used, then COS/CTCSS/RUS isn't even required. I have such a configuration - just 4 wires from the repeater radios (gnd, disc, mic, ptt). And I have several fobs to modify and free up that URI for a higher calling....someday.
tnx
Mike / W5JR
Alpharetta GA
On Oct 13, 2015, at 1:21 PM, Scott Zimmerman <n3xcc@repeater-builder.com> wrote:
The URI offers many extra features that most of us never touch.
Such as? I've been thinking of producing a lower cost alternative, but realize that the cost of a GENUINE CM119 alone is more than you pay for a whole FOB from your favorite Chinese supplier. You then add the cost of an enclosure and board to the parts count, things add up pretty quickly.
Lay the schematics side by side. The URI type device offers quite a few features not provided by
a modified FOB.
My USB-RIM device went several steps further down the "additional features" path. It seems there are few people that want to pay for additional features or better engineering. <shrug>Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531On 10/13/2015 12:50 PM, W5JR Mike wrote:
The URI offers many extra features that most of us never touch. Great if really needed. I do like the "professional" look of the URI versus a (my) modified fob at a shared repeater building.tnx
Mike / W5JR
Alpharetta GAOn Oct 13, 2015, at 10:13 AM, Steve Zingman <szingman@msgstor.com> wrote:
To some extent you are comparing oranges and tangerines.
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.73, Steve N4IRS
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I expect many just use the RX/TX audio, a COS/RUS/CTCSS input, PTT and ground.
Ok.... So the next question then is: How much would you pay for such a device?
Would you want it in an enclosure or "bare bones"? Blinky flashy lights? Any preference for an interface connector? DE-9?
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
On 10/13/2015 3:50 PM, W5JR Mike wrote:
I expect many just use the RX/TX audio, a COS/RUS/CTCSS input, PTT and ground. Seldom both COS and CTCSS so that the cop command can switch from tone to carrier. And never use the extra GPIO pins for other things, like mic hang up for Tone/Carrier if separate COS/CTCSS aren't available, hi/low power on a remote or repeater, antenna 1 / 2 selection, discreet channel steering, porch light on/off, etc, etc. And if usbradio is used, then COS/CTCSS/RUS isn't even required. I have such a configuration - just 4 wires from the repeater radios (gnd, disc, mic, ptt). And I have several fobs to modify and free up that URI for a higher calling....someday.
tnx
Mike / W5JR
Alpharetta GAOn Oct 13, 2015, at 1:21 PM, Scott Zimmerman <n3xcc@repeater-builder.com> wrote:
The URI offers many extra features that most of us never touch.
Such as? I've been thinking of producing a lower cost alternative, but realize that the cost of a GENUINE CM119 alone is more than you pay for a whole FOB from your favorite Chinese supplier. You then add the cost of an enclosure and board to the parts count, things add up pretty quickly.
Lay the schematics side by side. The URI type device offers quite a few features not provided by
a modified FOB.
My USB-RIM device went several steps further down the "additional features" path. It seems there are few people that want to pay for additional features or better engineering. <shrug>Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531On 10/13/2015 12:50 PM, W5JR Mike wrote:
The URI offers many extra features that most of us never touch. Great if really needed. I do like the "professional" look of the URI versus a (my) modified fob at a shared repeater building.tnx
Mike / W5JR
Alpharetta GAOn Oct 13, 2015, at 10:13 AM, Steve Zingman <szingman@msgstor.com> wrote:
To some extent you are comparing oranges and tangerines.
Lay the schematics side by side. The URI type device offers quite a few features not provided by a modified FOB.73, Steve N4IRS
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