Date   

Re: Irlp ownership

John
 

Thanks Dave, but I must disagree..
I have just clicked on the link you provided.
There is no explicit mention of any instructions for a irlp node being transferred from one ham to another on that page, unless it's hidden in small print!

I'm pulling the curtain down tonight.
73 John

On 1/10/2020 8:45 pm, k9dc wrote:
The link I posted was taken directly from the home page “Update DB info.” It is also the very first item in the owners FAQ. It should be pretty obvious. Sorry you guys missed it.
-k9dc

On Oct 1, 2020, at 06:38, Brian Smith <k9bps@mail.com> wrote:

I don’t disagree. I looked both pages over twice before I asked

Brian Smith

On Oct 1, 2020, at 3:31 AM, John <gielisj@westnet.com.au> wrote:

Begging your pardon bla lba bla
that question should be on the FAQ page,
I don't even see it on the owners FAQ page.
So many owners ask this simple question
it's a wonder Dave C has not taken the hint :)

Greets from cairns - node 6163 - offline due to audio issues.

John VK4JKL

On 1/10/2020 10:07 am, k9dc wrote:
The procedure to update owner information is at http://irlp.net/owners/dbupdates.html
Anyone that has physical possession of the box, can update the info.
-k9dc
On Sep 30, 2020, at 19:32, Brian Smith <k9bps@mail.com> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Re: Irlp ownership

Dave K9DC
 

The link I posted was taken directly from the home page “Update DB info.” It is also the very first item in the owners FAQ. It should be pretty obvious. Sorry you guys missed it.

-k9dc

On Oct 1, 2020, at 06:38, Brian Smith <k9bps@mail.com> wrote:

I don’t disagree. I looked both pages over twice before I asked

Brian Smith

On Oct 1, 2020, at 3:31 AM, John <gielisj@westnet.com.au> wrote:

Begging your pardon bla lba bla
that question should be on the FAQ page,
I don't even see it on the owners FAQ page.
So many owners ask this simple question
it's a wonder Dave C has not taken the hint :)

Greets from cairns - node 6163 - offline due to audio issues.

John VK4JKL

On 1/10/2020 10:07 am, k9dc wrote:
The procedure to update owner information is at http://irlp.net/owners/dbupdates.html
Anyone that has physical possession of the box, can update the info.
-k9dc
On Sep 30, 2020, at 19:32, Brian Smith <k9bps@mail.com> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Re: Irlp ownership

Brian Smith <k9bps@...>
 

I don’t disagree. I looked both pages over twice before I asked

Brian Smith

On Oct 1, 2020, at 3:31 AM, John <gielisj@...> wrote:

Begging your pardon bla lba bla
that question should be on the FAQ page,
I don't even see it on the owners FAQ page.
So many owners ask this simple question
it's a wonder Dave C has not taken the hint :)

Greets from cairns - node 6163 - offline due to audio issues.

John VK4JKL

On 1/10/2020 10:07 am, k9dc wrote:
The procedure to update owner information is at http://irlp.net/owners/dbupdates.html
Anyone that has physical possession of the box, can update the info.
-k9dc
On Sep 30, 2020, at 19:32, Brian Smith <k9bps@...> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith






Re: Irlp ownership

John
 

Begging your pardon bla lba bla
that question should be on the FAQ page,
I don't even see it on the owners FAQ page.
So many owners ask this simple question
it's a wonder Dave C has not taken the hint :)

Greets from cairns - node 6163 - offline due to audio issues.

John VK4JKL

On 1/10/2020 10:07 am, k9dc wrote:
The procedure to update owner information is at http://irlp.net/owners/dbupdates.html
Anyone that has physical possession of the box, can update the info.
-k9dc

On Sep 30, 2020, at 19:32, Brian Smith <k9bps@mail.com> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Re: Irlp ownership

Dave K9DC
 


The procedure to update owner information is at http://irlp.net/owners/dbupdates.html
Anyone that has physical possession of the box, can update the info.

-k9dc


On Sep 30, 2020, at 19:32, Brian Smith <k9bps@...> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Re: Irlp ownership

Ray - KF6OJE
 

On Wed, Sep 30, 2020 at 04:49 PM, Brian Smith wrote:
sold


Re: Irlp ownership

Ray - KF6OJE
 

I had one that needed a new sd card. USPS claims it was delivered to correct address, Mark denies receiving. Certainly could have used it as I had a spare card with my IRLP info. Ray kf6oje@...


Re: Irlp ownership

Brian Smith <k9bps@...>
 

It’s sold. I just wanted to make sure there wasn’t anything I needed to do to facilitate it

Brian Smith

On Sep 30, 2020, at 6:46 PM, Fred via groups.io <w5mgm@...> wrote:



Nothing,  the new owner can change the ownership.   How much do you want for it?

 

Fred

W5MGM

 

From: Brian Smith
Sent: Wednesday, September 30, 2020 6:42 PM
To: irlp@groups.io
Subject: [IRLP] Irlp ownership

 

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith

 

<D9445154B52F4E05860D9A9FB9EF3E75.png>


Re: Irlp ownership

Fred
 

Nothing,  the new owner can change the ownership.   How much do you want for it?

 

Fred

W5MGM

 

From: Brian Smith
Sent: Wednesday, September 30, 2020 6:42 PM
To: irlp@groups.io
Subject: [IRLP] Irlp ownership

 

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith

 


Re: Irlp ownership

Michael SCHARFSTEIN
 

Hi Brian, I have a node registered but am moving it. What equipment is it and what are you asking for it.

Mike WA2JSB


On Sep 30, 2020, at 7:42 PM, Brian Smith <k9bps@...> wrote:

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Irlp ownership

Brian Smith <k9bps@...>
 

I currently have a Micronode Nano-node for IRLP. I’m selling it. What do I need to do so the buyer can register it? Thanks

Brian Smith


Re: Producing -COS signal from AnyTone radio model AT-778uv

 

Herman Hoffman,
If you must have a radio where a DB9 connector (or equiv.) has all signals readily available I am unable to assist.
 
The Baofeng UV5R and most of its close variants (such as the BF-F8, BF-F9V2+) are low power and inexpensive. The BF-F8+ I purchased a year ago brand new for $26 delivered. To use the UV5R as a link radio, you need to open it up and add one wire. If you want me to write a tutorial on the process, let me know.  N3RRB. 


Re: Producing -COS signal from AnyTone radio model AT-778uv

Herman Hoffman
 

Thank you, WA9LFQ


On Tue, Sep 29, 2020 at 12:33 PM eprom999 via groups.io <eprom999=yahoo.com@groups.io> wrote:
Thank you for the suggestion.  I will post this where you recommend.  Regards RRB.


Re: Producing -COS signal from AnyTone radio model AT-778uv

 

Thank you for the suggestion.  I will post this where you recommend.  Regards RRB.


Re: Producing -COS signal from AnyTone radio model AT-778uv

Teton Amateur Radio Repeater Association (TARRA)
 

On 2020-09-28 11:00, Herman Hoffman wrote:

Not really an issue so much as trying to help you get the best chance of what you are looking for.

Mick - W7CAT
Node 3464

Sorry, I forget proper procedure. Somewhat new to this io.groups
service. I did not intend to cause an issue. WA9LFQ
Sent from Mail [1] for Windows 10
From: Teton Amateur Radio Repeater Association (TARRA)
Sent: Monday, September 28, 2020 11:51 AM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model
AT-778uv
You would probably have a lot better results with starting a new
message rather than taking over someone else's message.
Mick - W7CAT
Node 3464
----- Original Message -----
From: Herman Hoffman
To: "IRLP@irlp.groups.io"
Sent: Monday, September 28, 2020 09:30:22 AM
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model
AT-778uv

Hello, I am looking for a node link radio that can have low power
setting.? I know there are FT 2600 type radios but are getting very
had to find where everything is on a DB 9 connector.? I think taking a
new radio and making it into a? device that I need is an option but I
don?t want to spend a fortune either.? I am learning a great eal about
this aspect of Ham Radio but need some experienced guidance.? TNX &
73?s, waiting for a response.? WA9LFQ? Herman Hoffman??? EARS N4EAR
?
Sent from Mail for Windows 10
?
From: k9dcSent: Monday, September 28, 2020 10:27 AMTo:
IRLP@irlp.groups.ioSubject: Re: [IRLP] Producing -COS signal from
AnyTone radio model AT-778uv
?
?
Suggestion: Why don?t you place this in the Files area here, under
the ?Radio Mods? directory?
?
-k9dc
?
?

On Sep 27, 2020, at 12:18, eprom999 via groups.io wrote:
[Edited Message Follows]
[Reason: Removed reference to a comparator.]
Greetings IRLP Node people. I don't know if anyone out there is
interested in this. I'll just throw it out there anyway. I recently
purchased a very affordable AnyTone AT-778uv mobile radio. I wanted to
try using it as an IRLP link radio (I have a 5W Baofeng on there now).
No pressing reason for doing it. I was kind of bored last night and
decided to delve into it.

Right off the bat I understand there are more robust radios for
IRLP use and this radio may melt if set for full (25Watt) xmit power
and see significant PTT duty cycle.? Also this radio does not have a
cooling fan. If anyone wants to use this radio as a link radio be
aware that adding a cooling fan may be warranted. Using the radio in
this manner, and making the small soldering modification I made (even
when done skillfully) voids the manufacturer's warranty. You hold me
harmless if you try to do this. I make no guarantees you won't fry
something. You are on your own !

Let's begin.
This transceiver has all but one of the needed connections for
IRLP use available without opening the case. To get a COS signal
requires opening the case to tap the mute signal from the internal
circuitry. I have provided photos physically showing where I tapped
the necessary signal. It isn't easy to do from the top of the PCB
because there is a radial lead electrolytic cap really close to the
audio amplifier chip pin we need to solder to. I did not want to
remove the PCB from the case. I did my work from the top of the audio
amp with the PCB in the case. I was successful.

The audio chip is an 18 pin dip. The part number is Youda YD1517P.
The mute pin is pin 8. The way the mute functions is by a three step
DC voltage arrangement. Per the YD1517P data sheet when the mute pin
(pin 8) is below? 2 volts DC the chip is in "Standby". When the pin is
between 3.3V and 6.4 volts the speaker is muted. When the pin is
anything between 8.5 volts and VCC the audio amplifier un-mutes and
the speaker is driven. It is this unmuted state when we want to
activate the IRLP boards COS input line. There are many ways this can
be accomplished. They way I did it and show you below may not be the
optimum way to go about it, but then again, maybe it is. I tested the
method I'm sharing so I know it works on the AnyTone 778uv radio I
received last week from Amazon.

Three components is all that is needed. One resistor, one Zener
Diode and an opto-coupler. The circuit can be assembled on protoboard
or perf board in minutes. If the link radio loses power or is shut
off, the COS line does NOT mess up / lock up the node (and your
buddy's repeater or worse a big reflector). This is a good circuit. It
goes without saying that your link radio should have CTCSS on RCV
enabled so only appropriate radio signals activate the COS line. Set
the IRLP jumper for COS LOW. See the photos I've embedded. Let me know
if you have any questions or comments. If anyone wants to know how I
used a Baofeng BF-F8+ as a link radio for a few weeks, let me know.
That was pretty easy to do too and it worked as long as I didn't go
far from the house.

I carefully soldered a small wire directly to pin 8 of the audio
IC. If your soldering skills aren't the best, you may want to consult
the help of a friend for this. Alternatively you could take the board
out and solder your connection on the wire side of the PCB and
re-install the board. It is more work but less risky with regard to
that capacitor close to pin 8. My wire ran out the back where the red
and black power wires pass through. Be aware that the box cover is
plastic but the chassis is die cast metal. Don't let any uninsulated
stuff touch the chassis.? Good luck. 73's.

Rick B.
N3RRB
Deltona Florida USA
Node 4574
Attachments:
??????????? ? AT-778uv.jpg
??????????? ? Four screws opens easy.jpg
??????????? ? location of pin 8.jpg
??????????? ? Opto coupler method of getting COS.jpg
??????????? ? Opto coupler method of getting COS.jpg
??????????? ? location of pin 8.jpg
??????????? ? Four screws opens easy.jpg
??????????? ? AT-778uv.jpg
?
?
?
?
?
?
--
Links:
------
[1] https://go.microsoft.com/fwlink/?LinkId=550986
[2] https://irlp.groups.io/g/IRLP/message/77813
[3] https://groups.io/mt/77157616/501648
[4] https://irlp.groups.io/g/IRLP/post
[5] https://irlp.groups.io/g/IRLP/editsub/501648
[6] https://irlp.groups.io/g/IRLP/leave/defanged


Re: Producing -COS signal from AnyTone radio model AT-778uv

Herman Hoffman
 

Sorry, I forget proper procedure.  Somewhat new to this io.groups service.  I did not intend to cause an issue.  WA9LFQ

 

Sent from Mail for Windows 10

 

From: Teton Amateur Radio Repeater Association (TARRA)
Sent: Monday, September 28, 2020 11:51 AM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv

 

You would probably have a lot better results with starting a new message rather than taking over someone else's message.

Mick - W7CAT
Node 3464

----- Original Message -----
From: Herman Hoffman
To: "IRLP@irlp.groups.io"
Sent: Monday, September 28, 2020 09:30:22 AM
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv

>
> Hello, I am looking for a node link radio that can have low power setting.? I know there are FT 2600 type radios but are getting very had to find where everything is on a DB 9 connector.? I think taking a new radio and making it into a? device that I need is an option but I don?t want to spend a fortune either.? I am learning a great eal about this aspect of Ham Radio but need some experienced guidance.? TNX & 73?s, waiting for a response.? WA9LFQ? Herman Hoffman??? EARS N4EAR
>
> ?
>
> Sent from Mail for Windows 10
>
> ?
>
> From: k9dcSent: Monday, September 28, 2020 10:27 AMTo: IRLP@...: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv
>
> ?
>
> ?
>
> Suggestion: Why don?t you place this in the Files area here, under the ?Radio Mods? directory?
>
> ?
>
> -k9dc
>
> ?
>
> ?
>
> > On Sep 27, 2020, at 12:18, eprom999 via groups.io wrote:
>
> >
>
> > [Edited Message Follows]
>
> > [Reason: Removed reference to a comparator.]
>
> >
>
> > Greetings IRLP Node people. I don't know if anyone out there is interested in this. I'll just throw it out there anyway. I recently purchased a very affordable AnyTone AT-778uv mobile radio. I wanted to try using it as an IRLP link radio (I have a 5W Baofeng on there now). No pressing reason for doing it. I was kind of bored last night and decided to delve into it.
>
> > Right off the bat I understand there are more robust radios for IRLP use and this radio may melt if set for full (25Watt) xmit power and see significant PTT duty cycle.? Also this radio does not have a cooling fan. If anyone wants to use this radio as a link radio be aware that adding a cooling fan may be warranted. Using the radio in this manner, and making the small soldering modification I made (even when done skillfully) voids the manufacturer's warranty. You hold me harmless if you try to do this. I make no guarantees you won't fry something. You are on your own !
>
> > Let's begin.
>
> > This transceiver has all but one of the needed connections for IRLP use available without opening the case. To get a COS signal requires opening the case to tap the mute signal from the internal circuitry. I have provided photos physically showing where I tapped the necessary signal. It isn't easy to do from the top of the PCB because there is a radial lead electrolytic cap really close to the audio amplifier chip pin we need to solder to. I did not want to remove the PCB from the case. I did my work from the top of the audio amp with the PCB in the case. I was successful.
>
> > The audio chip is an 18 pin dip. The part number is Youda YD1517P. The mute pin is pin 8. The way the mute functions is by a three step DC voltage arrangement. Per the YD1517P data sheet when the mute pin (pin 8) is below? 2 volts DC the chip is in "Standby". When the pin is between 3.3V and 6.4 volts the speaker is muted. When the pin is anything between 8.5 volts and VCC the audio amplifier un-mutes and the speaker is driven. It is this unmuted state when we want to activate the IRLP boards COS input line. There are many ways this can be accomplished. They way I did it and show you below may not be the optimum way to go about it, but then again, maybe it is. I tested the method I'm sharing so I know it works on the AnyTone 778uv radio I received last week from Amazon.
>
> > Three components is all that is needed. One resistor, one Zener Diode and an opto-coupler. The circuit can be assembled on protoboard or perf board in minutes. If the link radio loses power or is shut off, the COS line does NOT mess up / lock up the node (and your buddy's repeater or worse a big reflector). This is a good circuit. It goes without saying that your link radio should have CTCSS on RCV enabled so only appropriate radio signals activate the COS line. Set the IRLP jumper for COS LOW. See the photos I've embedded. Let me know if you have any questions or comments. If anyone wants to know how I used a Baofeng BF-F8+ as a link radio for a few weeks, let me know. That was pretty easy to do too and it worked as long as I didn't go far from the house.
>
> >
>
> >
>
> >
>
> > I carefully soldered a small wire directly to pin 8 of the audio IC. If your soldering skills aren't the best, you may want to consult the help of a friend for this. Alternatively you could take the board out and solder your connection on the wire side of the PCB and re-install the board. It is more work but less risky with regard to that capacitor close to pin 8. My wire ran out the back where the red and black power wires pass through. Be aware that the box cover is plastic but the chassis is die cast metal. Don't let any uninsulated stuff touch the chassis.? Good luck. 73's.
>
> >
>
> > Rick B.
>
> > N3RRB
>
> > Deltona Florida USA
>
> > Node 4574
>
> > Attachments:
>
> >
>
> > ??????????? ? AT-778uv.jpg
>
> > ??????????? ? Four screws opens easy.jpg
>
> > ??????????? ? location of pin 8.jpg
>
> > ??????????? ? Opto coupler method of getting COS.jpg
>
> > ??????????? ? Opto coupler method of getting COS.jpg
>
> > ??????????? ? location of pin 8.jpg
>
> > ??????????? ? Four screws opens easy.jpg
>
> > ??????????? ? AT-778uv.jpg
>
> >
>
> ?
>
> ?
>
> ?
>
> ?
>
> ?
>
> ?
> >

--

 


Re: Producing -COS signal from AnyTone radio model AT-778uv

Teton Amateur Radio Repeater Association (TARRA)
 

You would probably have a lot better results with starting a new message rather than taking over someone else's message.

Mick - W7CAT
Node 3464

----- Original Message -----
From: Herman Hoffman
To: "IRLP@irlp.groups.io"
Sent: Monday, September 28, 2020 09:30:22 AM
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv

>
> Hello, I am looking for a node link radio that can have low power setting.? I know there are FT 2600 type radios but are getting very had to find where everything is on a DB 9 connector.? I think taking a new radio and making it into a? device that I need is an option but I don?t want to spend a fortune either.? I am learning a great eal about this aspect of Ham Radio but need some experienced guidance.? TNX & 73?s, waiting for a response.? WA9LFQ? Herman Hoffman??? EARS N4EAR
>
> ?
>
> Sent from Mail for Windows 10
>
> ?
>
> From: k9dcSent: Monday, September 28, 2020 10:27 AMTo: IRLP@...: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv
>
> ?
>
> ?
>
> Suggestion: Why don?t you place this in the Files area here, under the ?Radio Mods? directory?
>
> ?
>
> -k9dc
>
> ?
>
> ?
>
> > On Sep 27, 2020, at 12:18, eprom999 via groups.io wrote:
>
> >
>
> > [Edited Message Follows]
>
> > [Reason: Removed reference to a comparator.]
>
> >
>
> > Greetings IRLP Node people. I don't know if anyone out there is interested in this. I'll just throw it out there anyway. I recently purchased a very affordable AnyTone AT-778uv mobile radio. I wanted to try using it as an IRLP link radio (I have a 5W Baofeng on there now). No pressing reason for doing it. I was kind of bored last night and decided to delve into it.
>
> > Right off the bat I understand there are more robust radios for IRLP use and this radio may melt if set for full (25Watt) xmit power and see significant PTT duty cycle.? Also this radio does not have a cooling fan. If anyone wants to use this radio as a link radio be aware that adding a cooling fan may be warranted. Using the radio in this manner, and making the small soldering modification I made (even when done skillfully) voids the manufacturer's warranty. You hold me harmless if you try to do this. I make no guarantees you won't fry something. You are on your own !
>
> > Let's begin.
>
> > This transceiver has all but one of the needed connections for IRLP use available without opening the case. To get a COS signal requires opening the case to tap the mute signal from the internal circuitry. I have provided photos physically showing where I tapped the necessary signal. It isn't easy to do from the top of the PCB because there is a radial lead electrolytic cap really close to the audio amplifier chip pin we need to solder to. I did not want to remove the PCB from the case. I did my work from the top of the audio amp with the PCB in the case. I was successful.
>
> > The audio chip is an 18 pin dip. The part number is Youda YD1517P. The mute pin is pin 8. The way the mute functions is by a three step DC voltage arrangement. Per the YD1517P data sheet when the mute pin (pin 8) is below? 2 volts DC the chip is in "Standby". When the pin is between 3.3V and 6.4 volts the speaker is muted. When the pin is anything between 8.5 volts and VCC the audio amplifier un-mutes and the speaker is driven. It is this unmuted state when we want to activate the IRLP boards COS input line. There are many ways this can be accomplished. They way I did it and show you below may not be the optimum way to go about it, but then again, maybe it is. I tested the method I'm sharing so I know it works on the AnyTone 778uv radio I received last week from Amazon.
>
> > Three components is all that is needed. One resistor, one Zener Diode and an opto-coupler. The circuit can be assembled on protoboard or perf board in minutes. If the link radio loses power or is shut off, the COS line does NOT mess up / lock up the node (and your buddy's repeater or worse a big reflector). This is a good circuit. It goes without saying that your link radio should have CTCSS on RCV enabled so only appropriate radio signals activate the COS line. Set the IRLP jumper for COS LOW. See the photos I've embedded. Let me know if you have any questions or comments. If anyone wants to know how I used a Baofeng BF-F8+ as a link radio for a few weeks, let me know. That was pretty easy to do too and it worked as long as I didn't go far from the house.
>
> >
>
> >
>
> >
>
> > I carefully soldered a small wire directly to pin 8 of the audio IC. If your soldering skills aren't the best, you may want to consult the help of a friend for this. Alternatively you could take the board out and solder your connection on the wire side of the PCB and re-install the board. It is more work but less risky with regard to that capacitor close to pin 8. My wire ran out the back where the red and black power wires pass through. Be aware that the box cover is plastic but the chassis is die cast metal. Don't let any uninsulated stuff touch the chassis.? Good luck. 73's.
>
> >
>
> > Rick B.
>
> > N3RRB
>
> > Deltona Florida USA
>
> > Node 4574
>
> > Attachments:
>
> >
>
> > ??????????? ? AT-778uv.jpg
>
> > ??????????? ? Four screws opens easy.jpg
>
> > ??????????? ? location of pin 8.jpg
>
> > ??????????? ? Opto coupler method of getting COS.jpg
>
> > ??????????? ? Opto coupler method of getting COS.jpg
>
> > ??????????? ? location of pin 8.jpg
>
> > ??????????? ? Four screws opens easy.jpg
>
> > ??????????? ? AT-778uv.jpg
>
> >
>
> ?
>
> ?
>
> ?
>
> ?
>
> ?
>
> ?
> >
--


Re: Producing -COS signal from AnyTone radio model AT-778uv

Herman Hoffman
 

Hello, I am looking for a node link radio that can have low power setting.  I know there are FT 2600 type radios but are getting very had to find where everything is on a DB 9 connector.  I think taking a new radio and making it into a  device that I need is an option but I don’t want to spend a fortune either.  I am learning a great eal about this aspect of Ham Radio but need some experienced guidance.  TNX & 73’s, waiting for a response.  WA9LFQ  Herman Hoffman    EARS N4EAR

 

Sent from Mail for Windows 10

 

From: k9dc
Sent: Monday, September 28, 2020 10:27 AM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] Producing -COS signal from AnyTone radio model AT-778uv

 

 

Suggestion: Why don’t you place this in the Files area here, under the “Radio Mods” directory?

 

-k9dc

 

 

> On Sep 27, 2020, at 12:18, eprom999 via groups.io <eprom999@...> wrote:

>

> [Edited Message Follows]

> [Reason: Removed reference to a comparator.]

>

> Greetings IRLP Node people. I don't know if anyone out there is interested in this. I'll just throw it out there anyway. I recently purchased a very affordable AnyTone AT-778uv mobile radio. I wanted to try using it as an IRLP link radio (I have a 5W Baofeng on there now). No pressing reason for doing it. I was kind of bored last night and decided to delve into it.

> Right off the bat I understand there are more robust radios for IRLP use and this radio may melt if set for full (25Watt) xmit power and see significant PTT duty cycle.  Also this radio does not have a cooling fan. If anyone wants to use this radio as a link radio be aware that adding a cooling fan may be warranted. Using the radio in this manner, and making the small soldering modification I made (even when done skillfully) voids the manufacturer's warranty. You hold me harmless if you try to do this. I make no guarantees you won't fry something. You are on your own !

> Let's begin.

> This transceiver has all but one of the needed connections for IRLP use available without opening the case. To get a COS signal requires opening the case to tap the mute signal from the internal circuitry. I have provided photos physically showing where I tapped the necessary signal. It isn't easy to do from the top of the PCB because there is a radial lead electrolytic cap really close to the audio amplifier chip pin we need to solder to. I did not want to remove the PCB from the case. I did my work from the top of the audio amp with the PCB in the case. I was successful.

> The audio chip is an 18 pin dip. The part number is Youda YD1517P. The mute pin is pin 8. The way the mute functions is by a three step DC voltage arrangement. Per the YD1517P data sheet when the mute pin (pin 8) is below  2 volts DC the chip is in "Standby". When the pin is between 3.3V and 6.4 volts the speaker is muted. When the pin is anything between 8.5 volts and VCC the audio amplifier un-mutes and the speaker is driven. It is this unmuted state when we want to activate the IRLP boards COS input line. There are many ways this can be accomplished. They way I did it and show you below may not be the optimum way to go about it, but then again, maybe it is. I tested the method I'm sharing so I know it works on the AnyTone 778uv radio I received last week from Amazon.

> Three components is all that is needed. One resistor, one Zener Diode and an opto-coupler. The circuit can be assembled on protoboard or perf board in minutes. If the link radio loses power or is shut off, the COS line does NOT mess up / lock up the node (and your buddy's repeater or worse a big reflector). This is a good circuit. It goes without saying that your link radio should have CTCSS on RCV enabled so only appropriate radio signals activate the COS line. Set the IRLP jumper for COS LOW. See the photos I've embedded. Let me know if you have any questions or comments. If anyone wants to know how I used a Baofeng BF-F8+ as a link radio for a few weeks, let me know. That was pretty easy to do too and it worked as long as I didn't go far from the house.

>

>

>

> I carefully soldered a small wire directly to pin 8 of the audio IC. If your soldering skills aren't the best, you may want to consult the help of a friend for this. Alternatively you could take the board out and solder your connection on the wire side of the PCB and re-install the board. It is more work but less risky with regard to that capacitor close to pin 8. My wire ran out the back where the red and black power wires pass through. Be aware that the box cover is plastic but the chassis is die cast metal. Don't let any uninsulated stuff touch the chassis.  Good luck. 73's.

>

> Rick B.

> N3RRB

> Deltona Florida USA

> Node 4574

> Attachments:

>

>             • AT-778uv.jpg

>             • Four screws opens easy.jpg

>             • location of pin 8.jpg

>             • Opto coupler method of getting COS.jpg

>             • Opto coupler method of getting COS.jpg

>             • location of pin 8.jpg

>             • Four screws opens easy.jpg

>             • AT-778uv.jpg

>

 

 

 

 

 

 


Re: Producing -COS signal from AnyTone radio model AT-778uv

Dave K9DC
 

Suggestion: Why don’t you place this in the Files area here, under the “Radio Mods” directory?

-k9dc

On Sep 27, 2020, at 12:18, eprom999 via groups.io <eprom999=yahoo.com@groups.io> wrote:

[Edited Message Follows]
[Reason: Removed reference to a comparator.]

Greetings IRLP Node people. I don't know if anyone out there is interested in this. I'll just throw it out there anyway. I recently purchased a very affordable AnyTone AT-778uv mobile radio. I wanted to try using it as an IRLP link radio (I have a 5W Baofeng on there now). No pressing reason for doing it. I was kind of bored last night and decided to delve into it.
Right off the bat I understand there are more robust radios for IRLP use and this radio may melt if set for full (25Watt) xmit power and see significant PTT duty cycle. Also this radio does not have a cooling fan. If anyone wants to use this radio as a link radio be aware that adding a cooling fan may be warranted. Using the radio in this manner, and making the small soldering modification I made (even when done skillfully) voids the manufacturer's warranty. You hold me harmless if you try to do this. I make no guarantees you won't fry something. You are on your own !
Let's begin.
This transceiver has all but one of the needed connections for IRLP use available without opening the case. To get a COS signal requires opening the case to tap the mute signal from the internal circuitry. I have provided photos physically showing where I tapped the necessary signal. It isn't easy to do from the top of the PCB because there is a radial lead electrolytic cap really close to the audio amplifier chip pin we need to solder to. I did not want to remove the PCB from the case. I did my work from the top of the audio amp with the PCB in the case. I was successful.
The audio chip is an 18 pin dip. The part number is Youda YD1517P. The mute pin is pin 8. The way the mute functions is by a three step DC voltage arrangement. Per the YD1517P data sheet when the mute pin (pin 8) is below 2 volts DC the chip is in "Standby". When the pin is between 3.3V and 6.4 volts the speaker is muted. When the pin is anything between 8.5 volts and VCC the audio amplifier un-mutes and the speaker is driven. It is this unmuted state when we want to activate the IRLP boards COS input line. There are many ways this can be accomplished. They way I did it and show you below may not be the optimum way to go about it, but then again, maybe it is. I tested the method I'm sharing so I know it works on the AnyTone 778uv radio I received last week from Amazon.
Three components is all that is needed. One resistor, one Zener Diode and an opto-coupler. The circuit can be assembled on protoboard or perf board in minutes. If the link radio loses power or is shut off, the COS line does NOT mess up / lock up the node (and your buddy's repeater or worse a big reflector). This is a good circuit. It goes without saying that your link radio should have CTCSS on RCV enabled so only appropriate radio signals activate the COS line. Set the IRLP jumper for COS LOW. See the photos I've embedded. Let me know if you have any questions or comments. If anyone wants to know how I used a Baofeng BF-F8+ as a link radio for a few weeks, let me know. That was pretty easy to do too and it worked as long as I didn't go far from the house.



I carefully soldered a small wire directly to pin 8 of the audio IC. If your soldering skills aren't the best, you may want to consult the help of a friend for this. Alternatively you could take the board out and solder your connection on the wire side of the PCB and re-install the board. It is more work but less risky with regard to that capacitor close to pin 8. My wire ran out the back where the red and black power wires pass through. Be aware that the box cover is plastic but the chassis is die cast metal. Don't let any uninsulated stuff touch the chassis. Good luck. 73's.

Rick B.
N3RRB
Deltona Florida USA
Node 4574
Attachments:

• AT-778uv.jpg
• Four screws opens easy.jpg
• location of pin 8.jpg
• Opto coupler method of getting COS.jpg
• Opto coupler method of getting COS.jpg
• location of pin 8.jpg
• Four screws opens easy.jpg
• AT-778uv.jpg


Re: how do I change owner of the directory ? chown ?

kd1yh
 

I will give it a try,

-----Original Message-----
From: larry_n7fm
Sent: Wednesday, September 23, 2020 12:05 PM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] how do I change owner of the directory ? chown ?

Paul further searching online brought this to light which might be of
some help.

<https://irlp.groups.io/g/IRLP/topic/irlpvaux_script_and_debian_10/32997089?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,20,32997089>

Larry - N7FM

On 9/23/20 8:52 AM, larry_n7fm wrote:
Paul,

Sad to say I was thinking since K6IB site has disappeared if you had a missing or corrupted "irlpvaux" file I could send you a copy to replace/repair yours if that was the case.

As Dave Cameron noted there seems to be issues with irlpvaux and the newer Debian platform.

Since yours is a new virgin install on a Debian 10.5 my intended help would not fix your issue.

Maybe someone else has overcome the problem and will chime in.

Larry - N7FM






On 9/23/20 4:32 AM, kd1yh wrote:
Debian 10.5
and
irlpvcon_debian_install

both fresh

On 9/22/20 9:35 AM, kd1yh wrote:
This is what I loaded >>>

wget ftp://ftp.irlp.net/pub/remote/install-ra

. install-ra

wget -nd -nc k6ib.com/downloads/k6ib-load-a
wget ftp://ftp.irlp.net/pub/irlpvcon_debian/irlpvcon_debian_install
dir
. irlpvcon_debian_install
reboot


-----Original Message----- From: larry_n7fm
Sent: Wednesday, September 23, 2020 12:16 AM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] how do I change owner of the directory ? chown ?

Paul,
Sorry for being slow with my reply. Was gone all day.

Reading on some further comments by Cameron on the Internet I need to
ask are you installing on a new Debian built IRLP node.

Dave Cameron modified that version of IRLPvcon to work with Debian. The
older version and it have differences.

So what type (version) of IRLP node are you running.

My comment was based on the older unmodified irlpvcon and the additional
install of irlpvaux. From what it looks like I'm not sure Dave Cameron
uses the irlpvaux portion.

You might comment on where you got that download.

Perhaps if Dave C see's your post he might comment about whether or not
irlpvaux is even on his site.

Larry - N7FM




On 9/22/20 9:35 AM, kd1yh wrote:
This is what I loaded >>>

wget ftp://ftp.irlp.net/pub/remote/install-ra

. install-ra

wget -nd -nc k6ib.com/downloads/k6ib-load-a
wget ftp://ftp.irlp.net/pub/irlpvcon_debian/irlpvcon_debian_install
dir
. irlpvcon_debian_install
reboot

Paul kd1yh
-----Original Message----- From: larry_n7fm
Sent: Tuesday, September 22, 2020 11:37 AM
To: IRLP@irlp.groups.io
Subject: Re: [IRLP] how do I change owner of the directory ? chown ?

Paul

I jumped back to your first post as I believe you are on the wrong track.

First off did you actually install the IRLPvcon and IRLPvaux programs (2
different sections to get both features) with the installer?

If so you should have the file "irlpvaux" in your /irlp/custom
directory. listed as -irlpvaux - size 10779 - owned by repeater/repeater.

"irlpvaux" will be looking for the audio for its different announcement
function in /irlp/audio/custom/irlpaux-audio/ directory

If you have that directory with the audio files installed but missing
the "irlpvaux"
I could send you a copy as it appears K6IB web site is not functioning.

Larry - N7FM





On 9/21/20 9:28 AM, kd1yh wrote:
image
image
It does not see the file when image
I think it is the permissions
Paul Upham
KD1YH node 8581

















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