Keyboard Shortcuts
Likes
- Direwolf
- Messages
Search
Re: is there a way to avoid running sdr application and virtual audio driver?
yeah, I've got that RTL running on an old Rasp Pi but that was sort of what I wanted to do, but with this better FunCube Pro + SDR. The first issue I found was the drivers for that FunCube Pro + SDR were not supporting the architecture of the old Rasp Pi I had. I wanted to find some command line like?
rtl_fm -f 144.39M -o 4 - | direwolf -n 1 -r 24000 -b 16 -? command, but on windows and for the FunCube Pro + SDR. ? |
Re: is there a way to avoid running sdr application and virtual audio driver?
Let me rephrase: Looking for a 'very low resource', command line option that goes directly to audio over UDP. SO in specifics, replace?? ???? rtl_fm -f 144.39M -o 4 - | nc -u localhost 7355 or ? ? rtl_fm? -f 144.39M -o 4 - |sox -traw -r24k -es -b16 -c1 -V1 - -tmp3 - | socat -s TCP-LISTEN:8080 ? with something like ???? rtl_fm1 -f 144.39 -u localhost:7355 --output_format audio_signed_16-bit or however it can be specified. Remove NC and get the application to take care of it directly to audio format. Robert Giuliano
On Thursday, November 10, 2022 at 12:20:29 PM EST, Sasha Tim <sasha.nyc09@...> wrote:
SDR++ can do UDP audio On Wed, Nov 9, 2022 at 9:01 AM Rob Giuliano via <kb8rco=[email protected]> wrote: If someone knows of a network audio application to output the audio over UDP, that would be even more ideal. |
Re: is there a way to avoid running sdr application and virtual audio driver?
SDR++ can do UDP audio On Wed, Nov 9, 2022 at 9:01 AM Rob Giuliano via <kb8rco=[email protected]> wrote: If someone knows of a network audio application to output the audio over UDP, that would be even more ideal. |
Re: Planning to use Kenwood D710 & RPi for iGate gateway
toggle quoted message
Show quoted text
On 9 Nov 2022, at 14:21, z_ kevino <z_kevino@...> wrote:
|
Re: is there a way to avoid running sdr application and virtual audio driver?
开云体育Hello Kevin, You must have some form of SDR program to initialize your specific hardware, process the incoming I/Q signals, and demodulate the signal.? So YES, you need an (some) form of SDR program.? That said.. there are ways to simplify but I'm not aware of "how" simple that can be done in Windows.? Per the comment from John WB2OSZ (author of Direwolf), you favorite SDR program might support sending the demodulated audio via a network connection.? That will help avoid the virtual audio cable mess.? What SDR program do you normally use? Alternatively, if you're willing to use Linux, you can use the light weight STDIN approach.? For example, here is an example using an inexpensive RTL SDR, the very light weight rtl_fm SDR program, and Direwolf: ?? I have to imagine that the FunCube+ and SDRPlay-DX units have some form of a light weight SDR program offering but you'll have to research that. --David KI6ZHD On 11/08/2022 06:16 PM, z_ kevino
wrote:
i've got both a Funcube Pro+ and an SDRplay dx. Is there any way to tell direwolf (windows) to get the SDR to simply demodulate FM on 144.390 and pass this into direwolf? I'm trying to get the smallest footprint of running apps.? |
Re: is there a way to avoid running sdr application and virtual audio driver?
If someone knows of a network audio application to output the audio over UDP, that would be even more ideal.
Then you could use Direwolf UDP input rather than standard input / output. The only one I found was RTL_FM_VLC. Has anyone used that? ----- Rob KB8RCO |
Re: is there a way to avoid running sdr application and virtual audio driver?
On Tue, Nov 8, 2022 at 09:16 PM, z_ kevino wrote:
i've got both a Funcube Pro+ and an SDRplay dx. Is there any way to tell direwolf (windows) to get the SDR to simply demodulate FM on 144.390 and pass this into direwolf?You will always need some kind of SDR application as a go between of the RTL dongle and Direwolf. So, best guess at the "lightest" SDR application" would be RTL_FM on a command line (section 9.1.6.2 of the manual) ? ? ?rtl_fm -f 144.39M -o 4 - | direwolf -n 1 -r 24000 -b 16 - Then use standard input as the means of getting the audio to direwolf with a config file like: ? ? ?ADEVICE0 stdin default
? ? ?ARATE 24000
This works well since you probably are not changing any frequencies or other settings on the RTL----- Rob KB8RCO |
is there a way to avoid running sdr application and virtual audio driver?
i've got both a Funcube Pro+ and an SDRplay dx. Is there any way to tell direwolf (windows) to get the SDR to simply demodulate FM on 144.390 and pass this into direwolf? I'm trying to get the smallest footprint of running apps.?
up until this, I have been running SDRpp, virtual audio cable, sound modem and APRSIS.? I'd like to find the simplest way / footprint to run an APRS i-gate only on a windows machine. Any suggestions are really appreciated. -Kevin (KK4YEL)? |
Re: RMS packet or BBS stations
Hi John,
I first want to try the very same direwolf 1.7 instance that hang previously to see if it is still reproducible (there may have been external factors involved that I'm not able to control or reproduce), but if it is I will try the snapshot 1.7a as well. Thanks for pointing that out, since I had not been aware of it. I wanted to try 1.7 for the improved ability to calibrate FM deviation with continuous Mark and Space tones and thought the development branch was my only option. As for logs for the original two hangs, the JNOS and Outpost PM (client application) logs are available. Just DireWolf itself did not have logging enabled at that time. "Hangs" may not be the right word either. In both cases the DIreWolf console continued to print a message for every packet received from JNOS except that the console message (same message repeating) was completely unrelated to the AX.25 packet that was received! No data was passed on through the AGWPE connection to Outpost PM. Thanks Thomas KK6FPP |
Re: RMS packet or BBS stations
You might get better results with the . I don't know whether the dev branch is meant to be stable.
toggle quoted message
Show quoted text
On Sun, Nov 6, 2022 at 01:19 PM, Thomas Leibold wrote: The hangs were with DireWolf 1.7 ('dev' branch from 10/19/2022) running on openSuSE Linux. |
Re: RMS packet or BBS stations
Hi Chris,
I am too experiencing this, but I have issues with JNOS hanging with a hardware TNC too.This is off-topic for the direwolf group, but there is a well known (for everybody except Kantronics who deny it) problem with the KPC-3/KPC-3+ firmware in KISS mode (and JNOS interfaces with the TNC in kiss mode). At some point (sooner or later depending on the traffic volume) the KPC-3(+) will gets its buffer pointers messed up and from that point forward will pass on the contents of the oldest still buffered packet whenever a new packet comes in. In connection-less operation (e.g. APRS) this results in some messages being duplicated and others being strangely delayed. In connected mode operation (e.g. BBS access) this plays complete havoc and prevents normal operation until the KPC-3(+) is being reset (either power-cycle or taken out of KISS mode and then KISS mode turned back on which involves a soft reset). On 15 KPC-3+ TNCs (4 JNOS BBS, 3 Radios each) we experience this issue about once every 1-2 month. As for the hangs I had with DireWolf 1.7, I repeated the same test 4 times with DireWolf 1.6 and cannot reproduce it. I'll try to repeat the test with DireWolf 1.7 (this time with logging enabled) hopefully later this week. Thanks Thomas KK6FPP |
Re: RMS packet or BBS stations
I am too experiencing this, but I have issues with JNOS hanging with a
toggle quoted message
Show quoted text
hardware TNC too. It seems the retries are spaced unevenly and seem to wait as though holding off because of DCD sense, but there is no carrier to be detected on the channel. So I am going to chalk it up to a JNOS issue not a direwolf one. I have a LinBPQ instance I may test it with. I am WAAAYYY more familiar with JNOS, so I would rather get that fixed. This was happening from years ago too, and I never quite nailed down why it was failing. I ended up giving it up because my JNOS instance gets almost no use whatsoever. Just leaving up a KPC-3+ for the occasional PBBS traffic (maybe 2 messages a year). However, I have been playing again because it is fun. I also have been doing CW nets for NTS and would like to integrate these things. -Chris KQ6UP On Sun, Nov 6, 2022 at 1:55 PM WB2OSZ <wb2osz@...> wrote:
--
Thanks, Chris Maness |
Ubuntu build
#hamlib
Trying to build for Linux with hamlib enabled, but I get "...not found...".? I do have hamlib 4.5, probably in an unusual location, locally built and installed for another app.? Have tried to set env vars, but not clear what it's looking for.
A libhamlib.so.2 link dynamic library (libhamlib.so.2.1.3 is the target) is located in the system libs area, but the static library and include files are in "~/hamlib-4.5/include/hamlib". What do I need to do to enable use of hamlib with cmake for DireWolf? |
Re: question on duplicity
开云体育I was setting up a portable yet intended-to-be fixed APRS station. ?Primary use will be at club activations / picnics. ?This system is a direwolf TNC with APRSIS/32 as the client on a windows machine.Since it will be in the field, this portable setup will not be expecting internet, therefore I-gating will be sporadic at best. I’ll report back the results from next weekends outing. ? Thanks and 73 all! Craig T. Bailey ARS N1SFT Hudson, NH 603-867-3607 On Nov 6, 2022, at 22:46, Lynn Deffenbaugh <kj4erj@...> wrote:
|
Re: question on duplicity
Lynn Deffenbaugh
开云体育My personal choice/recommendation would
be that if your "TNC" can handle the IGating and/or digipeating,
then let it handle it.?? That way if you close your client (or
shut down the PC on which the client runs), and the TNC is still
"alive", then your station will continue to operate as expected.
Greg is correct with respect to gating
messages from the APRS-IS to local RF.?? You really only want one
of your "stations" to be doing that.? Otherwise every one would be
transmitted twice on RF, once by each IGate.?? Not good.
And remember, the APRS-IS does not
contain any intelligent routing or IGate "selection" process.??
Every IGate that has recently forwarded a packet from a station,
will receive messages addressed to that station for some period of
time (default 30 minutes).?? Read that carefully, EVERY IGate that
hears the station gets addressed messages from the APRS-IS.?? It
is up to the individual IGates to decide what to do with them.
And a little known "feature" of the
APRS-IS is that if station Y sends a message addressed to station
X which was heard by IGate A, then the next position report from Y
will also be sent ot IGate A for forwarding onto the RF if
desired.?? This allows X to know see Y's position, even if it is
1/2 way around the planet.
Lynn (D) - KJ4ERJ - Author of APRSISCE
for Windows Mobile and Win32
On 11/6/2022 9:55 PM, Greg D wrote:
The APRS-IS will be fine (it's pretty bullet proof), but my experience is that there could be some subtle problems, specifically with messaging.? You can send a message, but who can see it and who receives the reply?? It might have been a quirk with how I set things up (this was with YAAC on a Raspberry Pi), but after noticing the issue I ran through the combinations of source and sink (RF, IS, various SSIDs, etc) until my head began to hurt.? Most worked, but some did not.? Since there is overlap, what roles should Direwolf play, and what for the attached client (YAAC in this case)?? I never got to the bottom of it.?
|
Re: question on duplicity
开云体育The APRS-IS will be fine (it's pretty bullet proof), but my experience is that there could be some subtle problems, specifically with messaging.? You can send a message, but who can see it and who receives the reply?? It might have been a quirk with how I set things up (this was with YAAC on a Raspberry Pi), but after noticing the issue I ran through the combinations of source and sink (RF, IS, various SSIDs, etc) until my head began to hurt.? Most worked, but some did not.? Since there is overlap, what roles should Direwolf play, and what for the attached client (YAAC in this case)?? I never got to the bottom of it.?The Pi is the one in my car, rarely used on APRS since my mobile rig has only one VFO and it's usually parked on the local repeater.? So, not a high priority to fix, but I'd love to know how one should implement something like this, particularly the question of roles.? I was trying to make a communicate-with-everything box, both iGate and as a Digi, moving map display of local stations, messaging, etc.? I presume it still works as it did, but it's been a couple of years. Greg? KO6TH Craig T. Bailey, N1SFT wrote:
|
Re: question on duplicity
开云体育Thanks Lynn!? ?? I figured my inquiry would receive the ubiquitous response… “ask at the other forum…”? ? ? Very good to know about the dedupes.? I think I’ll pick one to serve as igate, though.? No sense in making more work. ? Craig N1SFT ? From: [email protected] <[email protected]> On Behalf Of Lynn Deffenbaugh
Sent: Sunday, November 06, 2022 20:16 To: [email protected] Subject: Re: [direwolf] question on duplicity ? While that is a redundant setup, nothing bad will happen.?? The APRS-IS servers de-dupe all gated packets anyway, so you do not need to specify any one as being "better" than the other.?? ? Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32 ? ? ? On 11/6/2022 7:16 PM, Craig T. Bailey, N1SFT wrote:
? |