Date   

Re: Bridging to other modes and networks. (BrandMeister, D-Star, etc) #best_practices

Chris WB4ULK
 

Never connect one network to another network.
Always be aware what you are connected to before making another connection.

You look like a clown when you connect to my network and you brought the entire UK with you.


Bridging to other modes and networks. (BrandMeister, D-Star, etc) #best_practices

Steve N4IRS
 

I have started a new topic so that we can discuss the things that people should be aware of BEFORE dropping a bridge into a network. I will move a couple of messages into this topic and mark it sticky.

Steve N4IRS


Re: Bridging to other modes and networks. (BrandMeister, D-Star, etc) #best_practices

Corey Dean N3FE <n3fe@...>
 

I try to keep the USA portion of the wiki updated with this.  This is a lot of work. We have always requested they use their dmr id as the talkgroup. 

I know I have posted about this somewhere.  I will see if I can pull it up or at least get the wiki updated.

On Sat, Nov 17, 2018 at 11:53 PM Mike KB8JNM <groupio@...> wrote:

Corey,

Don't take this the wrong way but,

Is there some place these 'best practices / rules' are printed ?

Something I can read and point others to and link to on the web.

I say that since I hear a lot of things I know are dead wrong, many things I am not sure of and then I here this from you on alt modes on state TG's that is new to me.

And most of us do not know what the true authoritative answers are for rules and best practices. Many are obvious to some but not all. And I don't like being surprised by them after the fact as I am sure others feel the same way.

 I will help spread the word. I am sure nobody wants to operate in a undesirable way, but we do need to know what that is.

...mike/kb8jnm


On 11/16/2018 8:21 PM, Corey Dean N3FE wrote:
Please do NOT link to a state talkgroup!  One of the deals with cbridge owners is not crosslinking other modes onto statewide talkgroups, unless of course you want to see them start disconnecting their links!

Corey n3fe

On Fri, Nov 16, 2018 at 4:42 PM Neil k8it <k8it@...> wrote:
running half duplex no emphasis using default settings for node 1999 but I have tunned my private  node which I can make public if needed.. I also can provide ssh login if needed off list
what audio params should I play with, and is the best way to do it.
currently on t/g 3126
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK

Sent: Friday, November 16, 2018 4:09 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: XLX 2 XLX Connection

andrew (callsign)
 

XLX has its own inbuilt ability to connect to other XLX. Or other reflectors, TG's etc. Using interconnects.

Why re-invent the wheel ??


Hi, nobody can point to me ?
How can i configure MMDVM_Bridge.ini (and DVSwitch.ini) to link one side XLX in DEXTRA ? Is it possibile ?
Is it necessary to have also ircddbgateway ?

Thank you
David


Re: Bridging to other modes and networks. (BrandMeister, D-Star, etc) #best_practices

KB5PBM
 

Well on the allstar side ulaw codec is probably your best bet to use.  Since you really cant control that across the network makes it hard.  Another issue is when a station on the analog side starts to get white noise it sounds really bad on the conversion to dmr codec.  I have 4 nodes from allstar on my small network and I keep them private due to the codec and noise issue and the other big killer is delay.  Adding the delay makes it difficult and the conversation goes south.  In my opinion if all networks are aware and ok with it then do it.  But if not keep it private. 


Bridging to other modes and networks. (BrandMeister, D-Star, etc) #best_practices

Mike KB8JNM
 

Corey,

Don't take this the wrong way but,

Is there some place these 'best practices / rules' are printed ?

Something I can read and point others to and link to on the web.

I say that since I hear a lot of things I know are dead wrong, many things I am not sure of and then I here this from you on alt modes on state TG's that is new to me.

And most of us do not know what the true authoritative answers are for rules and best practices. Many are obvious to some but not all. And I don't like being surprised by them after the fact as I am sure others feel the same way.

 I will help spread the word. I am sure nobody wants to operate in a undesirable way, but we do need to know what that is.

...mike/kb8jnm


On 11/16/2018 8:21 PM, Corey Dean N3FE wrote:
Please do NOT link to a state talkgroup!  One of the deals with cbridge owners is not crosslinking other modes onto statewide talkgroups, unless of course you want to see them start disconnecting their links!

Corey n3fe

On Fri, Nov 16, 2018 at 4:42 PM Neil k8it <k8it@...> wrote:
running half duplex no emphasis using default settings for node 1999 but I have tunned my private  node which I can make public if needed.. I also can provide ssh login if needed off list
what audio params should I play with, and is the best way to do it.
currently on t/g 3126
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK

Sent: Friday, November 16, 2018 4:09 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: Using an SDR as a source for analog_bridge

Stephen Brown - K1LNX
 

Thanks Steve....that gives us a starting point at least :) I can probably set the RX variable for this application so I'll definitely look into it.

73
Stephen

On Sat, Nov 17, 2018, 19:08 Steve N4IRS <szingman@... wrote:
Stephen,
I can see using a python script to take the audio from rtl_fm and send it via USRP to Analog_Bridge. Now the bad news, how to detect and tell the script that there is a signal (COR)

Steve N4IRS

On 11/17/18 7:00 PM, Stephen Brown - K1LNX wrote:
Hi guys, 
    I have a friend of mine that wants a RX only application to feed into a DMR talkgroup. He wants to take the output of analog UHF machine and transcode it to DMR. 

Is it possible to feed analog_bridge audio directly, or use an SDR's output to feed into the USRP channel driver if app_rpt must be used? 

I'm sure there's a method, but before we went too deep down the rabbit hole wondered if anyone else has attempted and/or is currently using it. 

73
Stephen 
K1LNX


Re: Using an SDR as a source for analog_bridge

Steve N4IRS
 

Stephen,
I can see using a python script to take the audio from rtl_fm and send it via USRP to Analog_Bridge. Now the bad news, how to detect and tell the script that there is a signal (COR)

Steve N4IRS

On 11/17/18 7:00 PM, Stephen Brown - K1LNX wrote:
Hi guys, 
    I have a friend of mine that wants a RX only application to feed into a DMR talkgroup. He wants to take the output of analog UHF machine and transcode it to DMR. 

Is it possible to feed analog_bridge audio directly, or use an SDR's output to feed into the USRP channel driver if app_rpt must be used? 

I'm sure there's a method, but before we went too deep down the rabbit hole wondered if anyone else has attempted and/or is currently using it. 

73
Stephen 
K1LNX


Using an SDR as a source for analog_bridge

Stephen Brown - K1LNX
 

Hi guys, 
    I have a friend of mine that wants a RX only application to feed into a DMR talkgroup. He wants to take the output of analog UHF machine and transcode it to DMR. 

Is it possible to feed analog_bridge audio directly, or use an SDR's output to feed into the USRP channel driver if app_rpt must be used? 

I'm sure there's a method, but before we went too deep down the rabbit hole wondered if anyone else has attempted and/or is currently using it. 

73
Stephen 
K1LNX


Re: XLX 2 XLX Connection

david bencini ik5xmk
 

Hi, nobody can point to me ?

How can i configure MMDVM_Bridge.ini (and DVSwitch.ini) to link one side XLX in DEXTRA ? Is it possibile ?
Is it necessary to have also ircddbgateway ?

Thank you
David


Re: ASL to DMR Bridge...audio quality

Corey Dean N3FE <n3fe@...>
 

Please do NOT link to a state talkgroup!  One of the deals with cbridge owners is not crosslinking other modes onto statewide talkgroups, unless of course you want to see them start disconnecting their links!

Corey n3fe

On Fri, Nov 16, 2018 at 4:42 PM Neil k8it <k8it@...> wrote:
running half duplex no emphasis using default settings for node 1999 but I have tunned my private  node which I can make public if needed.. I also can provide ssh login if needed off list
what audio params should I play with, and is the best way to do it.
currently on t/g 3126
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK

Sent: Friday, November 16, 2018 4:09 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: ASL to DMR Bridge...audio quality

Neil k8it
 

jjc
n0pkt
what gain setting did you end up with
also thanks steve for the reply
still wondering how the gain levels affect audio bandwith
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK
Allstar Node 42087 KITLINK HUB
IRLP Node exp0068
Echolink K8IT-L
WIRES-X K8IT 11479 Room 21479

Sent: Friday, November 16, 2018 4:05 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

It's my experience that the audio is much wider in analog.  The largest issue that I had when setting up analog bridge was getting the levels adjusted correctly in terms of the gain control within analog bridge itself.  Once I was able to get those to a good level it all fell in place and sounds great now, and we are primarily using USBRADIO for all of our ASL nodes.

JJC
N0PKT

On Fri, Nov 16, 2018 at 2:02 PM Neil k8it <k8it@...> wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: ASL to DMR Bridge...audio quality

Steve N4IRS
 

Have toy listened to the analog audio on another analog node or IAXRPT etc?
You can control the audio levels in Analog_bridge.ini In the [USRP] stanza,setting aslAudio and dmrAudio to AUDIO_UNITY will keep provide no gain or reduction.

If you need to adjust the DMR -> ASL audio, change:
aslAudio = AUDIO_USE_GAIN

agcGain = 1.0
This should be the same level as AUDIO_UNITY

agcGain = 2.0
This should be twice as loud as AUDIO_UNITY

agcGain = 0.5
This should be half as loud as
AUDIO_UNITY  
=========================================

If you need to adjust the ASL -> DMR audio, change:
dmrAudio = AUDIO_USE_GAIN

dmrGain = 1.0
This should be the same level as AUDIO_UNITY

dmrGain = 2.0
This should be twice as loud as AUDIO_UNITY

dmrGain = 0.5
This should be half as loud as AUDIO_UNITY


On 11/16/18 4:42 PM, Neil k8it wrote:
running half duplex no emphasis using default settings for node 1999 but I have tunned my private  node which I can make public if needed.. I also can provide ssh login if needed off list
what audio params should I play with, and is the best way to do it.
currently on t/g 3126
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK

Sent: Friday, November 16, 2018 4:09 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK



Re: ASL to DMR Bridge...audio quality

Neil k8it
 

running half duplex no emphasis using default settings for node 1999 but I have tunned my private  node which I can make public if needed.. I also can provide ssh login if needed off list
what audio params should I play with, and is the best way to do it.
currently on t/g 3126
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK

Sent: Friday, November 16, 2018 4:09 PM
Subject: Re: [DVSwitch] ASL to DMR Bridge...audiuo quality

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: ASL to DMR Bridge...audio quality

Steve N4IRS
 

How are you connected to the receiver? Pre-emphasised or de-emphasised? Are you running simplex or duplex? If duplex how does the audio sound out the analog transmitter? If simplex, is it a public node that can connect to another node for a audio report?
If all that is good, look at your audio levels from analog to digital.

Steve N4IRS

On 11/16/18 4:02 PM, Neil k8it wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: ASL to DMR Bridge...audio quality

JJ Cummings
 

It's my experience that the audio is much wider in analog.  The largest issue that I had when setting up analog bridge was getting the levels adjusted correctly in terms of the gain control within analog bridge itself.  Once I was able to get those to a good level it all fell in place and sounds great now, and we are primarily using USBRADIO for all of our ASL nodes.

JJC
N0PKT

On Fri, Nov 16, 2018 at 2:02 PM Neil k8it <k8it@...> wrote:
I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: ASL to DMR Bridge...audio quality

Neil k8it
 

I got the analog bridge to work now. I am now trying to improve the audio quality of the audio sent to DMR.
I correctly am using USBRADIO for my private Allstar node with audio that sounds very compressed.
Would I be better off to switch to SIMPLEUSB?
Is there any tricks to getting more audio bandwidth?
 
 
 
 
 
Thanks
73 Neil Sablatzky  K8IT
Allstar Node 41838 KITLINK


Re: XLX 2 XLX Connection

david bencini ik5xmk
 

Hi,  because one XLX has hardware for transcode but one of they has not. It is a big problem when you have more XLXs. For this reason i need an ONLY dstar connection. Luc doesn't want to patch this ...
Any idea is welcome.
73. David


Re: ASL to DMR Bridge...reading talkgroups

Jeff Lehman, N8ACL
 

😊 Some times simple is the bestest 😊

Jeff Lehman, KC8QCH
E-mail: kc8qch@gmail.com
http://kc8qch.dx.am
Hamshack Hotline: 4218

Webmaster
Hamilton County ARPSC
http://www.hamcoarpsc.org
E-mail: hamcoarpsc@gmail.com
Phone: 513-452-6480

Allstar 47374 Administrator
World Wide Amateur Radio Guild
http://www.theguildglobal.org
E-Mail: kc8qch@theguildglobal.net

-----Original Message-----
From: main@DVSwitch.groups.io <main@DVSwitch.groups.io> On Behalf Of Gregory Heinrichs
Sent: Thursday, November 15, 2018 21:10
To: main@DVSwitch.groups.io
Subject: Re: [DVSwitch] ASL to DMR Bridge...reading talkgroups

That is a good point. I will do that.

On 11/15/18 5:55 PM, Jeff Lehman, KC8QCH wrote:

Or why not when you run the script to change TG’s just write the new
talkgroup to a text file since you have it already? No need to pull it
from anywhere. Then just read the Text file into your webpage.



Jeff Lehman, KC8QCH

E-mail: kc8qch@gmail.com

http://kc8qch.dx.am
Hamshack Hotline: 4218



Webmaster

Hamilton County ARPSC

http://www.hamcoarpsc.org

E-mail: hamcoarpsc@gmail.com

Phone: 513-452-6480



Allstar 47374 Administrator

World Wide Amateur Radio Guild

http://www.theguildglobal.org

E-Mail: kc8qch@theguildglobal.net



*From:* main@DVSwitch.groups.io <main@DVSwitch.groups.io> *On Behalf
Of *Steve N4IRS
*Sent:* Thursday, November 15, 2018 20:49
*To:* main@DVSwitch.groups.io
*Subject:* Re: [DVSwitch] ASL to DMR Bridge...reading talkgroups



My short off the top of my head answer. If you know what TG you
started on and tracked the changes, you know where you are.

Pseudo code:
Start the bridge
Send AB/MB to TG 9
Echo 9 to text file
From this point on, any change to the TG goes through the script and
the text file contains the current TG.

No matter where you go, there you are.

As I said, Mike and I have been talking about Metadata. AB exchanges
Metadata across the USRP channel. That is how a Transcoder sends
Metadata across the transcoder. MB1 <-> AB1 <-> AB2 <-MB2> There is a
need to be able to get metadata from MB1 to MB2 That data is passed
across the USRP channel (The connection between AB1 and AB2) The ASL
USRP channel drive does not send or receive Matadata. We are
discussing strategies to add Metadata to ASL without modifing the USRP
channel driver. Think AMI.

73, Steve N4IRS

On 11/15/18 8:32 PM, Michael Weaver - AC2VK wrote:

I was going to post the same question today. So +1 for this. A way
to query what the current talkgroup is.




Re: ASL to DMR Bridge...reading talkgroups

Gregory Heinrichs
 

That is a good point. I will do that.

On 11/15/18 5:55 PM, Jeff Lehman, KC8QCH wrote:

Or why not when you run the script to change TG’s just write the new
talkgroup to a text file since you have it already? No need to pull it
from anywhere. Then just read the Text file into your webpage.

 

Jeff Lehman, KC8QCH

E-mail: kc8qch@gmail.com

http://kc8qch.dx.am
Hamshack Hotline: 4218

 

Webmaster

Hamilton County ARPSC

http://www.hamcoarpsc.org

E-mail: hamcoarpsc@gmail.com

Phone: 513-452-6480

 

Allstar 47374 Administrator

World Wide Amateur Radio Guild

http://www.theguildglobal.org

E-Mail: kc8qch@theguildglobal.net

 

*From:* main@DVSwitch.groups.io <main@DVSwitch.groups.io> *On Behalf
Of *Steve N4IRS
*Sent:* Thursday, November 15, 2018 20:49
*To:* main@DVSwitch.groups.io
*Subject:* Re: [DVSwitch] ASL to DMR Bridge...reading talkgroups

 

My short off the top of my head answer. If you know what TG you
started on and tracked the changes, you know where you are.

Pseudo code:
Start the bridge
Send AB/MB to TG 9
Echo 9 to text file
From this point on, any change to the TG goes through the script and
the text file contains the current TG.

No matter where you go, there you are.

As I said, Mike and I have been talking about Metadata. AB exchanges
Metadata across the USRP channel. That is how a Transcoder sends
Metadata across the transcoder. MB1 <-> AB1 <-> AB2 <-MB2> There is a
need to be able to get metadata from MB1 to MB2 That data is passed
across the USRP channel (The connection between AB1 and AB2) The ASL
USRP channel drive does not send or receive Matadata. We are
discussing strategies to add Metadata to ASL without modifing the USRP
channel driver. Think AMI.

73, Steve N4IRS

On 11/15/18 8:32 PM, Michael Weaver - AC2VK wrote:

I was going to post the same question today. So +1 for this. A way
to query what the current talkgroup is.

 

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