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Re: IGFILTER in Rx only iGate

 

Matt asked:

> What q-construct are you tagging the APRS packets with??
> Is it qAR? This would imply to APRS-IS that you are a TX I-gate.?
> If you use qAO instead, this should tell APRS-IS that you are RX-only.?

direwolf version 1.3 always uses qAR. ?version 1.4 uses qAO for a receive-only IGate. ?Look at the comments in igate.c for more background on this.

Version 1.4 has a new client side packet filter to select "messages" only to stations that have been heard nearby recently. This is now the default if no IS to RF filter is specified.?

Version 1.3 is the current default download version. ?To get version 1.4, use the "dev" branch. ? See Revision history here: ? ?

There is also a new document that explains how an IGate works, proper configuration, and troubleshooting. ??

If no significant issues are reported with this version, it will soon become the 1.4 release and default download version.
Re: Raspberry Pi Automatic Startup fails

 

But that version is not the same as tightvncserver, and for me doesn't work as well.?

Max KG4PID

From: "'John D. Hays' john@... [direwolf_packet]"
To: direwolf_packet@...
Sent: Wednesday, February 22, 2017 6:48 PM
Subject: Re: [direwolf_packet] Raspberry Pi Automatic Startup fails

?
In the latest Raspbian release:

sudo raspi-config
Select "Interfacing Options"
Enable "VNC"

On Wed, Feb 22, 2017 at 4:03 PM, kq6di@... [direwolf_packet] <direwolf_packet@...> wrote:
?
I found another way to get VNC running, and this one works. ?(The one in the AdaFruit Tutorial didn't.)


At least it works for me so far...

Arnold
KQ6DI

From: "David Ranch dranch@... [direwolf_packet]" <direwolf_packet@yahoogroups. com>
To: "direwolf packet" <direwolf_packet@yahoogroups. com>
Sent: Wednesday, February 22, 2017 1:16:47 PM
Subject: Re: [direwolf_packet] Raspberry Pi Automatic Startup fails

?
Hello Arnold,

?
I have a Raspberry Pi running DireWolf as a remote digipeater.? After a power failure, I would like DireWolf to automatically start.? I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.

This has been discussed multiple times on the list before..


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort.? The log file has:
Wed Feb 22 11:53:41 PST 2017
DISPLAY=:0?? <----------------------------- ------

The dw-start.sh script *requires* that the shell running the script has a Xwindows system running (be it on the Rasberry Pi's HDMI port, VNC, etc) first.? If you don't start one of those two options first, the script will fail 100% of the time.? If you want to start Direwolf in a headless fashion (no Xwindows, VNC, etc) yet have things restart when required, I'd recommend to review N7NIX's systemd "unit" files for Direwolf:

?? #The systemd unit for Direwolf
??

?? #See the bottom of this install script on how to install it
??


There are other ways to solve this though the Systemd way is the most "correct" way.? If you rather use the dw-start.sh script, I can provide you an edited one that is similar to my version that uses screen vs an Xterm window to show the ongoing logging of Direwolf.? You can see how I start Direwolf this way in the below script but this script does a lot more than just start Direwolf and thus much of it is probably a distraction:

??

--David
KI6ZHD




--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223
???
Re: Raspberry Pi Automatic Startup fails

 

In the latest Raspbian release:

sudo raspi-config
Select "Interfacing Options"
Enable "VNC"

On Wed, Feb 22, 2017 at 4:03 PM, kq6di@... [direwolf_packet] <direwolf_packet@...> wrote:
?

I found another way to get VNC running, and this one works. ?(The one in the AdaFruit Tutorial didn't.)


At least it works for me so far...

Arnold
KQ6DI

From: "David Ranch dranch@... [direwolf_packet]" <direwolf_packet@yahoogroups.com>
To: "direwolf packet" <direwolf_packet@yahoogroups.com>
Sent: Wednesday, February 22, 2017 1:16:47 PM
Subject: Re: [direwolf_packet] Raspberry Pi Automatic Startup fails

?

Hello Arnold,

?
I have a Raspberry Pi running DireWolf as a remote digipeater.? After a power failure, I would like DireWolf to automatically start.? I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.


This has been discussed multiple times on the list before..


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort.? The log file has:

Wed Feb 22 11:53:41 PST 2017

DISPLAY=:0?? <-----------------------------------


The dw-start.sh script *requires* that the shell running the script has a Xwindows system running (be it on the Rasberry Pi's HDMI port, VNC, etc) first.? If you don't start one of those two options first, the script will fail 100% of the time.? If you want to start Direwolf in a headless fashion (no Xwindows, VNC, etc) yet have things restart when required, I'd recommend to review N7NIX's systemd "unit" files for Direwolf:

?? #The systemd unit for Direwolf
??

?? #See the bottom of this install script on how to install it
??


There are other ways to solve this though the Systemd way is the most "correct" way.? If you rather use the dw-start.sh script, I can provide you an edited one that is similar to my version that uses screen vs an Xterm window to show the ongoing logging of Direwolf.? You can see how I start Direwolf this way in the below script but this script does a lot more than just start Direwolf and thus much of it is probably a distraction:

??

--David
KI6ZHD





--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223
???
Re: Raspberry Pi Automatic Startup fails

 

I found another way to get VNC running, and this one works. ?(The one in the AdaFruit Tutorial didn't.)


At least it works for me so far...

Arnold
KQ6DI

From: "David Ranch dranch@... [direwolf_packet]"
To: "direwolf packet"
Sent: Wednesday, February 22, 2017 1:16:47 PM
Subject: Re: [direwolf_packet] Raspberry Pi Automatic Startup fails

?

Hello Arnold,

?
I have a Raspberry Pi running DireWolf as a remote digipeater. ?After a power failure, I would like DireWolf to automatically start. ?I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.


This has been discussed multiple times on the list before..


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort. ?The log file has:

Wed Feb 22 11:53:41 PST 2017

DISPLAY=:0?? <-----------------------------------


The dw-start.sh script *requires* that the shell running the script has a Xwindows system running (be it on the Rasberry Pi's HDMI port, VNC, etc) first.? If you don't start one of those two options first, the script will fail 100% of the time.? If you want to start Direwolf in a headless fashion (no Xwindows, VNC, etc) yet have things restart when required, I'd recommend to review N7NIX's systemd "unit" files for Direwolf:

?? #The systemd unit for Direwolf
??

?? #See the bottom of this install script on how to install it
??


There are other ways to solve this though the Systemd way is the most "correct" way.? If you rather use the dw-start.sh script, I can provide you an edited one that is similar to my version that uses screen vs an Xterm window to show the ongoing logging of Direwolf.? You can see how I start Direwolf this way in the below script but this script does a lot more than just start Direwolf and thus much of it is probably a distraction:

??

--David
KI6ZHD
Re: Raspberry Pi Automatic Startup fails

 

Humm, well I thought I had started VNC server, and it appears (to my apparent lack of knowledge) that the VNC server did start. ?I just hadn't logged into the VNC server yet. ? Maybe it's the wrong VNC server when DireWolf is looking.

The script does run, and it appears that it tries to start DireWolf, but DireWolf doesn't see a Xterminal and exits.

Beyond that, the links you provided are beyond my programming capability to even begin to figure out what is happening, let alone grab just the installation portion.

I wish this was clearer in the DireWolf documentation. ?As it is, this can't be used in a stand-alone configuration.

Arnold
KQ6DI

From: "David Ranch dranch@... [direwolf_packet]"
To: "direwolf packet"
Sent: Wednesday, February 22, 2017 1:16:47 PM
Subject: Re: [direwolf_packet] Raspberry Pi Automatic Startup fails

?

Hello Arnold,

?
I have a Raspberry Pi running DireWolf as a remote digipeater. ?After a power failure, I would like DireWolf to automatically start. ?I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.

This has been discussed multiple times on the list before..


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort. ?The log file has:

Wed Feb 22 11:53:41 PST 2017

DISPLAY=:0?? <-----------------------------------


The dw-start.sh script *requires* that the shell running the script has a Xwindows system running (be it on the Rasberry Pi's HDMI port, VNC, etc) first.? If you don't start one of those two options first, the script will fail 100% of the time.? If you want to start Direwolf in a headless fashion (no Xwindows, VNC, etc) yet have things restart when required, I'd recommend to review N7NIX's systemd "unit" files for Direwolf:

?? #The systemd unit for Direwolf
??

?? #See the bottom of this install script on how to install it
??


There are other ways to solve this though the Systemd way is the most "correct" way.? If you rather use the dw-start.sh script, I can provide you an edited one that is similar to my version that uses screen vs an Xterm window to show the ongoing logging of Direwolf.? You can see how I start Direwolf this way in the below script but this script does a lot more than just start Direwolf and thus much of it is probably a distraction:

??

--David
KI6ZHD
Re: Raspberry Pi Automatic Startup fails

David Ranch
 

开云体育

Hello Arnold,

?
I have a Raspberry Pi running DireWolf as a remote digipeater. ?After a power failure, I would like DireWolf to automatically start. ?I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.

This has been discussed multiple times on the list before..


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort. ?The log file has:

Wed Feb 22 11:53:41 PST 2017

DISPLAY=:0?? <-----------------------------------


The dw-start.sh script *requires* that the shell running the script has a Xwindows system running (be it on the Rasberry Pi's HDMI port, VNC, etc) first.? If you don't start one of those two options first, the script will fail 100% of the time.? If you want to start Direwolf in a headless fashion (no Xwindows, VNC, etc) yet have things restart when required, I'd recommend to review N7NIX's systemd "unit" files for Direwolf:

?? #The systemd unit for Direwolf
??

?? #See the bottom of this install script on how to install it
??


There are other ways to solve this though the Systemd way is the most "correct" way.? If you rather use the dw-start.sh script, I can provide you an edited one that is similar to my version that uses screen vs an Xterm window to show the ongoing logging of Direwolf.? You can see how I start Direwolf this way in the below script but this script does a lot more than just start Direwolf and thus much of it is probably a distraction:

??

--David
KI6ZHD
Raspberry Pi Automatic Startup fails

 

I'm having the same problem that others have posted.

I am running Raspbian version 8.


I have a Raspberry Pi running DireWolf as a remote digipeater. ?After a power failure, I would like DireWolf to automatically start. ?I have put in the Automatic Startup commands from section 6.1 of the Raspberry-Pi-APRS.pdf document, and it will not automatically start.
I have made the script file Executable by using the following:

sudo chmod +x dw-start.sh


What I found by looking at the Log file that is created is the script (from DireWolf) REQUIRES a display of some sort. ?The log file has:

Wed Feb 22 11:53:41 PST 2017

DISPLAY=:0

Start up application.

-----------------------

Wed Feb 22 11:54:41 PST 2017

DISPLAY=:0

Start up application.

-----------------------

Wed Feb 22 11:55:41 PST 2017

DISPLAY=:0

Start up application.

-----------------------


When I manually start a VNC server, then DireWolf will start, but NOT UNTIL I manually start the VNC server.


By looking at the script, it shouldn't get to "Start up application" unless a display was found, so it appears whatever display was found DireWolf didn't like.


Suggestions?


Arnold

KQ6DI
FILTER in Rx

 

Max,
There are range filters that work well, but only for position reports. ?I usually have them set fro 350 km so positions of 0N 0W get rejected, but weather is not a position. ?You could block weather, but that blocks all weather stations. ?An option I use for "undesired stations" is to filter out that station using -b/callsign filter. ?It only works after you discover the bad station and put in the filter, but it won't happen again.
Arnold
kq6di

From: "Max Harper kg4pid@... [direwolf_packet]"
To: "direwolf packet" <direwolf_packet@...>
Sent: Tuesday, February 21, 2017 11:48:44 PM
Subject: Re: [direwolf_packet] IGFILTER in Rx only iGate

?

While I agree with you, we are not given any control over that. While my station is not receive only, the other day there was a short band opening and I received a single packet from a distant station 400 miles away?via RF,?and for the next three hours I received their once per minute weather station packets. I counted all 180 of them. Seems like a lot of wasted bandwidth. Not to mention it fills?up my logs with useless data. See if you can spot both problems!

Max KG4PID
From: "kq6di@... [direwolf_packet]"
To: direwolf packet
Sent: Wednesday, February 22, 2017 12:05 AM
Subject: [direwolf_packet] IGFILTER in Rx only iGate

?
I have a Receive Only iGate. ?The T2 servers keep sending my iGate packets they think are going to go to RF. ?Obviously they don't, but what is the way to stop getting iGate messages for transmit?
IGFILTER no send ????
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20 messages an hour that it wants to send.

Arnold
KQ6DI
Re: IGFILTER in Rx only iGate

 

Maybe I need to explain a little more.
This is a Raspberry Pi and it is going to be on a hilltop. ?I won't have any other computer or program running except DireWolf. ?This isn't about the Raspberry Pi, but it is about the IGFILTERS. ?
Tuning for what I want is perfect, except the choice for ZERO doesn't seem to be an option. ?I suppose a range of 1 km might do it. ?(But then I got a call on the Security telephone one day on the hilltop offering daily newspaper delivery. ?4 locked gates in the middle of nowhere...)
The hilltop has rather limited internet bandwidth. ?I realize these packets are small, but they all add up.
Arnold
kq6di

From: "'Nick B.' nick@... [direwolf_packet]"
To: "direwolf packet"
Sent: Wednesday, February 22, 2017 6:57:16 AM
Subject: Re: [direwolf_packet] IGFILTER in Rx only iGate

This should be possible with the IGFILTER config parameter. Just choose
what traffic you want from APRS-IS as per
http://www.aprs-is.net/javAPRSFilter.aspx

IGFILTER m/10 t/po

Would send traffic within a 10km radius of my position and only position
packets and objects. Tune accordingly for your requirements.

HTH
Nick G4IRX.



On 22/02/2017 08:07, Matt Maguire matt.vk2rq@... [direwolf_packet]
wrote:
>
> What q-construct are you tagging the APRS packets with? Is it qAR?
> This would imply to APRS-IS that you are a TX I-gate. If you use qAO
> instead, ?this should tell APRS-IS that you are RX-only. Not sure if
> that would solve the problem. Also not sure if direwolf APRS-IS client
> lets you specify the q construct. if not, you can run another client
> on top of Direwolf modem, eg. APRSIS32. But if the confit option is
> missing in direwolf APRS-IS client, someone should probably add it.
>
> 73, Matt VK2RQ
>
> ------------------------------------------------------------------------
> *From:* direwolf_packet@...
> on behalf of Max Harper
> kg4pid@... [direwolf_packet]
> *Sent:* Wednesday, February 22, 2017 6:48:44 PM
> *To:* direwolf_packet@...
> *Subject:* Re: [direwolf_packet] IGFILTER in Rx only iGate
> While I agree with you, we are not given any control over that. While
> my station is not receive only, the other day there was a short band
> opening and I received a single packet from a distant station 400
> miles away via RF, and for the next three hours I received their once
> per minute weather station packets. I counted all 180 of them. Seems
> like a lot of wasted bandwidth. Not to mention it fills up my logs
> with useless data. See if you can spot both problems!
>
> Max KG4PID
> ------------------------------------------------------------------------
> *From:* "kq6di@... [direwolf_packet]"
>
> *To:* direwolf packet
> *Sent:* Wednesday, February 22, 2017 12:05 AM
> *Subject:* [direwolf_packet] IGFILTER in Rx only iGate
>
> I have a Receive Only iGate. ?The T2 servers keep sending my iGate
> packets they think are going to go to RF. ?Obviously they don't, but
> what is the way to stop getting iGate messages for transmit?
> IGFILTER no send ????
> IGFILTER -everything ???
>
> There must be a way that I haven't found because I get about 20
> messages an hour that it wants to send.
>
> Arnold
> KQ6DI
>
>
>



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Re: IGFILTER in Rx only iGate

 

Correction to below

IGFILTER m/10 t/po

sends ALL packets and objects. Direwolf config suggests only the m/ parameter should do this.

73

Nick

On 22/02/2017 14:57, 'Nick B.' nick@... [direwolf_packet] wrote:
This should be possible with the IGFILTER config parameter. Just choose
what traffic you want from APRS-IS as per


IGFILTER m/10 t/po

Would send traffic within a 10km radius of my position and only position
packets and objects. Tune accordingly for your requirements.

HTH
Nick G4IRX.



On 22/02/2017 08:07, Matt Maguire matt.vk2rq@... [direwolf_packet]
wrote:
What q-construct are you tagging the APRS packets with? Is it qAR?
This would imply to APRS-IS that you are a TX I-gate. If you use qAO
instead, this should tell APRS-IS that you are RX-only. Not sure if
that would solve the problem. Also not sure if direwolf APRS-IS client
lets you specify the q construct. if not, you can run another client
on top of Direwolf modem, eg. APRSIS32. But if the confit option is
missing in direwolf APRS-IS client, someone should probably add it.

73, Matt VK2RQ

------------------------------------------------------------------------
*From:* direwolf_packet@...
<direwolf_packet@...> on behalf of Max Harper
kg4pid@... [direwolf_packet] <direwolf_packet@...>
*Sent:* Wednesday, February 22, 2017 6:48:44 PM
*To:* direwolf_packet@...
*Subject:* Re: [direwolf_packet] IGFILTER in Rx only iGate
While I agree with you, we are not given any control over that. While
my station is not receive only, the other day there was a short band
opening and I received a single packet from a distant station 400
miles away via RF, and for the next three hours I received their once
per minute weather station packets. I counted all 180 of them. Seems
like a lot of wasted bandwidth. Not to mention it fills up my logs
with useless data. See if you can spot both problems!

Max KG4PID
------------------------------------------------------------------------
*From:* "kq6di@... [direwolf_packet]"
<direwolf_packet@...>
*To:* direwolf packet <direwolf_packet@...>
*Sent:* Wednesday, February 22, 2017 12:05 AM
*Subject:* [direwolf_packet] IGFILTER in Rx only iGate

I have a Receive Only iGate. The T2 servers keep sending my iGate
packets they think are going to go to RF. Obviously they don't, but
what is the way to stop getting iGate messages for transmit?
IGFILTER no send ???
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20
messages an hour that it wants to send.

Arnold
KQ6DI



------------------------------------

------------------------------------


------------------------------------

Yahoo Groups Links
Re: IGFILTER in Rx only iGate

 

This should be possible with the IGFILTER config parameter. Just choose what traffic you want from APRS-IS as per

IGFILTER m/10 t/po

Would send traffic within a 10km radius of my position and only position packets and objects. Tune accordingly for your requirements.

HTH
Nick G4IRX.

On 22/02/2017 08:07, Matt Maguire matt.vk2rq@... [direwolf_packet] wrote:

What q-construct are you tagging the APRS packets with? Is it qAR? This would imply to APRS-IS that you are a TX I-gate. If you use qAO instead, this should tell APRS-IS that you are RX-only. Not sure if that would solve the problem. Also not sure if direwolf APRS-IS client lets you specify the q construct. if not, you can run another client on top of Direwolf modem, eg. APRSIS32. But if the confit option is missing in direwolf APRS-IS client, someone should probably add it.

73, Matt VK2RQ

------------------------------------------------------------------------
*From:* direwolf_packet@... <direwolf_packet@...> on behalf of Max Harper kg4pid@... [direwolf_packet] <direwolf_packet@...>
*Sent:* Wednesday, February 22, 2017 6:48:44 PM
*To:* direwolf_packet@...
*Subject:* Re: [direwolf_packet] IGFILTER in Rx only iGate
While I agree with you, we are not given any control over that. While my station is not receive only, the other day there was a short band opening and I received a single packet from a distant station 400 miles away via RF, and for the next three hours I received their once per minute weather station packets. I counted all 180 of them. Seems like a lot of wasted bandwidth. Not to mention it fills up my logs with useless data. See if you can spot both problems!

Max KG4PID
------------------------------------------------------------------------
*From:* "kq6di@... [direwolf_packet]" <direwolf_packet@...>
*To:* direwolf packet <direwolf_packet@...>
*Sent:* Wednesday, February 22, 2017 12:05 AM
*Subject:* [direwolf_packet] IGFILTER in Rx only iGate

I have a Receive Only iGate. The T2 servers keep sending my iGate packets they think are going to go to RF. Obviously they don't, but what is the way to stop getting iGate messages for transmit?
IGFILTER no send ???
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20 messages an hour that it wants to send.

Arnold
KQ6DI
Re: IGFILTER in Rx only iGate

 

开云体育

What q-construct are you tagging the APRS packets with? Is it qAR? This would imply to APRS-IS that you are a TX I-gate. If you use qAO instead, this should tell APRS-IS that you are RX-only. Not sure if that would solve the problem. Also not sure if direwolf APRS-IS client lets you specify the q construct. if not, you can run another client on top of Direwolf modem, eg. APRSIS32. But if the confit option is missing in direwolf APRS-IS client, someone should probably add it.

73, Matt VK2RQ

From: direwolf_packet@... on behalf of Max Harper kg4pid@... [direwolf_packet]
Sent: Wednesday, February 22, 2017 6:48:44 PM
To: direwolf_packet@...
Subject: Re: [direwolf_packet] IGFILTER in Rx only iGate
?
?

While I agree with you, we are not given any control over that. While my station is not receive only, the other day there was a short band opening and I received a single packet from a distant station 400 miles away?via RF,?and for the next three hours I received their once per minute weather station packets. I counted all 180 of them. Seems like a lot of wasted bandwidth. Not to mention it fills?up my logs with useless data. See if you can spot both problems!

Max KG4PID
From: "kq6di@... [direwolf_packet]"
To: direwolf packet
Sent: Wednesday, February 22, 2017 12:05 AM
Subject: [direwolf_packet] IGFILTER in Rx only iGate

?
I have a Receive Only iGate. ?The T2 servers keep sending my iGate packets they think are going to go to RF. ?Obviously they don't, but what is the way to stop getting iGate messages for transmit?
IGFILTER no send ????
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20 messages an hour that it wants to send.

Arnold
KQ6DI
Re: IGFILTER in Rx only iGate

 

While I agree with you, we are not given any control over that. While my station is not receive only, the other day there was a short band opening and I received a single packet from a distant station 400 miles away?via RF,?and for the next three hours I received their once per minute weather station packets. I counted all 180 of them. Seems like a lot of wasted bandwidth. Not to mention it fills?up my logs with useless data. See if you can spot both problems!

Max KG4PID

From: "kq6di@... [direwolf_packet]"
To: direwolf packet
Sent: Wednesday, February 22, 2017 12:05 AM
Subject: [direwolf_packet] IGFILTER in Rx only iGate

?
I have a Receive Only iGate. ?The T2 servers keep sending my iGate packets they think are going to go to RF. ?Obviously they don't, but what is the way to stop getting iGate messages for transmit?
IGFILTER no send ????
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20 messages an hour that it wants to send.

Arnold
KQ6DI
IGFILTER in Rx only iGate

 

I have a Receive Only iGate. ?The T2 servers keep sending my iGate packets they think are going to go to RF. ?Obviously they don't, but what is the way to stop getting iGate messages for transmit?
IGFILTER no send ????
IGFILTER -everything ???

There must be a way that I haven't found because I get about 20 messages an hour that it wants to send.

Arnold
KQ6DI
Re: Signalink Raspberry Pi (Jessie) audio setup

David Ranch
 

开云体育



?
Putting aside the fact that ALSA doesn't seem to work with the Signalink on Jessie, how do I know what is an appropriate INPUT audio level for use with Direwolf?

Per the user guide, you want your average reported report level to be around 50.? You'll see a lot of different levels out there from mistuned packet stations so just try your best.


How do I know when I am saturing the input level? Do I just use Fldigi waterfall to set it? Is the audio input level independent of the receive application?

Direwolf will tell you when the levels are too high.

--David
KI6ZHD
Re: Signalink Raspberry Pi (Jessie) audio setup

 

Hi Dave,
well,
putting the J2 jumper in place on the Signalink has boosted the receive audio. I now see Direwolf report audio levels in the 20s (typically) with the RX knob midrange setting, whereas before jumpering, the levels were typically single numers 3-4.

Putting aside the fact that ALSA doesn't seem to work with the Signalink on Jessie, how do I know what is an appropriate INPUT audio level for use with Direwolf? How do I know when I am saturing the input level? Do I just use Fldigi waterfall to set it? Is the audio input level independent of the receive application?

73, John, NX2I
?
Re: Signalink Raspberry Pi (Jessie) audio setup

David Ranch
 

开云体育


Good Morning John..


?
?Well, every OS is different in it's mixer settings.? What radio are you using and how is the Signalink connected to that radio?? I assume the RX knob on the front of the Signalink is turned to 100% volume?
?The radio (FT-857D) is connected via the 6 pin DIN data port on the rear panel of the radio, same as in Win 7. The settings of the Signalink are the same as for the Windows 7 ?setup, i.e. the RX knob is midrange. I still ?do not understand the Linux audio levereport format. Is this supposed to be the same as the Win version or diffel rent?

Well, I can't speak specifically to the SIgnalink but some sound card drivers can have different gain levels.? Here is one URL that talks about what might be happening when comparing to Windows:

??

Also, if you're not aware, there is a bug in the Windows USB sound card driver that impacts the Signalink.? It overdrives the levels but you can work around it:

??


hiiting the F6 key does NOT make any recording setting available in Alsamixer.

Ok.. this is the same way as on my Navigator.? All user controls are via the front facing Signalink knobs, the DATA port level settings on the FT857, etc.

--David
KI6ZHD
Re: Signalink Raspberry Pi (Jessie) audio setup

 

Hi David,
thanks for your reply, I have included some responses with the original text.
73, John, NX2I


On Thu, Feb 16, 2017 at 10:22 AM, David Ranch dranch@... [direwolf_packet] <direwolf_packet@...> wrote:
?


Hello John

.........
Agreed!


When I configure and run direwolf, I see packets being reported typically with audio levels = 2 to 4 ( e.g. 4(2/1). This is quite different from what is reported using the same Signalink and Windows 7 (typically audio level = 50 to 60). What's this mean? Is the Linux report different?

 Well, every OS is different in it's mixer settings.? What radio are you using and how is the Signalink connected to that radio?? I assume the RX knob on the front of the Signalink is turned to 100% volume?
?The radio (FT-857D) is connected via the 6 pin DIN data port on the rear panel of the radio, same as in Win 7. The settings of the Signalink are the same as for the Windows 7 ?setup, i.e. the RX knob is midrange. I still ?do not understand the Linux audio levereport format. Is this supposed to be the same as the Win version or diffel rent?

I have set the playback (output) level using Alsamixer, but I cannot get alsamixer to show that the record capabilty exists, let alone adjust it,

 It's been a long time since I've used a Signalink but I have a US Interface Navigator which is somewhat similar in that there isn't a Microphone level set via the electronic mixer.? The capture levels Is all controlled by the front knobs.? With that said, I believe alsamixer will show the microphone.? Try the following:

?? 1. Start up alsamixer
?? 2. Hit the F6 key and select the "CODEC [USB Audio CODEC]" soundcard
?? 3. Hit the F4 key to see the "capture" controls"

hiiting the F6 key does NOT make any recording setting available in Alsamixer.
?even though packets are clearly being received in direwolf. How can I know if the input audio level sensitivity is OK? How do I fix alsamixer?

 If all else fails, you might want to check out the JP2 jumper on the Signalink:

??


--David
KI6ZHD
eGroup Biz

charles brabham
 

Howdy,

The group is doing well, with over 450 members. As the list owner, I need to speak with the author of Direwolf about an important matter.

Please eMail: n5pvl@...

73 DE Charles, N5PVL
Re: RPi Direwolf SDR APRS Rx-only Igate VHF+UHF

David Ranch
 

开云体育


Hello Jose,

Have you read ?

--David
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