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Re: Direwolf as a TNC Help
I'll jump over there and see what I can get figured out.
I have the radio connected via USB to a via a ?which provides CAT control via a serial port and sound via a 10-pin mini-DIN to 6-pin Mini-DIN. The 6 pin is plugged into the I am able to see Direwolf decode what the radio receives, now I need to get PTT working to verify I have the correct outgoing or microphone port. Currently my PTT configuration(s) only lock the radio in transmit when Direwolf is run. #PTT COM1 RTS #PTT COM1 RTS -DTR PTT /dev/serial/by-id/usb-Silicon_Labs_CP2105_Dual_USB_to_UART_Bridge_Controller_00F8CEC3-if01-port0 DTR #PTT RIG 1022 /dev/serial/by-id/usb-Silicon_Labs_CP2105_Dual_USB_to_UART_Bridge_Controller_00F8CEC3-if01-port0 19200 I have another SCU-17 on my FT-857D on the same computer, it is controlled via FLRig and it shows the following working configuration... |
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Re: Testing output
开云体育Rob is right here (sorry for the confusion).? I did have them reversed BUT it's the "DATA IN" signal that also needs the ability to enable or disable the application of pre-emphasis if your radio supports this.? For say Kenwood v71/d710 models, here is a thread about it: ?? /g/VARA-MODEM/topic/74742391 Ultimately, when in doubt, assume your radio is applying the emphasis / de-emphasis to your signal which is the CORRECT choice for 1200bps packet used with APRS, classic connected packet, etc. --David KI6ZHD On 04/28/2022 08:28 AM, Rob Giuliano
via groups.io wrote:
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Re: Testing output
The Data Jack (6-pin mini-DIN) on radios does NOT have a 9600 baud TX pin. There are 6 pins in the jack: 1??? PKD (Data In) 2??? GND 3??? PTT 4??? RX9600 5??? RX1200 6??? SQL The TC path is the same for either baud rate. Robert Giuliano
On Thursday, April 28, 2022, 11:13:45 AM EDT, David Ranch <direwolf-groupsio@...> wrote:
Hello Neil, I am looking at the received audio coming back from the kenwood radio in audacity(first program I tried), and when I look at the transmit tones, it appears that my higher frequency is way down compared to the lower frequency.? Changing the playback volume doesn't appear to solve this.? The output looks the same when normalized(which audacity seems to do automatically). I think you you're seeing the effect of pre-emphasis or the lack of it.? When you connect your packet equipment to your radio, more basic radios can only be connected using their microphone port or possibly a "1200 bps" packet pin.? Those those signals will have pre-emphasis added to them and are transmitted over RF.? More advanced radios or modified radios have a "9600 bps" pin that does NOT add a pre-emphasis stage to the signal before it's transmitted over RF.? Pre-emphasis is already covered on but also has good descriptions here: ?? --David KI6ZHD |
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Re: Direwolf as a TNC Help
开云体育Hello Patrick, OK, I seemingly overlooked the volume on the sound interface and have confirmed direwolf sees traffic but YAAK isn't, not sure why since YAAK does report a connected application on port 8001 when I open it. I cannot help you with YACC APRS application running over Java but I would assume you have a configuration issue with that application.? Consider joining the YACC support group at [email protected] but beyond that, try enabling debugging on YACC and see what that might tell you.
How have you connected your sound device to your radio?? Is it via a specific serial port's control signal?? Maybe you're using GPIO pins on the sound device, GPIO pins on a Raspberry Pi?? Maybe you're using a Signalink with "auto-VOX"?? Are you using something like an easy-digi isolation device? --David KI6ZHD |
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Re: Testing output
开云体育Hello Neil, I am looking at the received audio coming back from the kenwood radio in audacity(first program I tried), and when I look at the transmit tones, it appears that my higher frequency is way down compared to the lower frequency.? Changing the playback volume doesn't appear to solve this.? The output looks the same when normalized(which audacity seems to do automatically). I think you you're seeing the effect of pre-emphasis or the lack of it.? When you connect your packet equipment to your radio, more basic radios can only be connected using their microphone port or possibly a "1200 bps" packet pin.? Those those signals will have pre-emphasis added to them and are transmitted over RF.? More advanced radios or modified radios have a "9600 bps" pin that does NOT add a pre-emphasis stage to the signal before it's transmitted over RF.? Pre-emphasis is already covered on but also has good descriptions here: ?? --David KI6ZHD |
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Re: Direwolf as a TNC Help
OK, I seemingly overlooked the volume on the sound interface and have confirmed direwolf sees traffic but YAAK isn't, not sure why since YAAK does report a connected application on port 8001 when I open it. |
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Re: Direwolf as a TNC Help
OK, so yea, going to need some help. I'm finding it a bit overwhelming. Direwolf is capable of doing quite a bit considering. |
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Testing output
Neil H. Gray
Based on suggestions, I tried to follow using the direwolf calibration tones(-x).
For my test setup I have a C-Media USB Audio attached to a yaesu ft-817, and a kenwood tr-2500 or kenwood tm-241 connected to a ASUS Xonar U7 MKII back to the same computer to monitor how the signal looks over the air.? Note that I also ran two instances of direwolf, and I was able to communicate between them, but I have still had no luck talking to other stations. I am looking at the received audio coming back from the kenwood radio in audacity(first program I tried), and when I look at the transmit tones, it appears that my higher frequency is way down compared to the lower frequency.? Changing the playback volume doesn't appear to solve this.? The output looks the same when normalized(which audacity seems to do automatically). Am I looking at this correctly? 
2022-04-21_successful_packet_radio_to_radio.jpg
audacity__direwolf__caudio_play_1__received__kenwood_tr-2500.png
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Re: AX.25 Packet Survey
Larry Springsteen
On my surfing computer I have APRSIS32 putting WB8LBZ-3 on the map.
On my main mobile, I have a Byonics TinyTrak3Plus/GPS/Icom 2100 On my backup mobile, I have a Byonics TinyTrak3Plus/GPS/Icom 2100 or Icom V8000 - not currently in use for my portable I have a Byonics MicroTrak AIO - it sees intermittent use current project - I have a Baofeng UV5R/Raspberry PI3/soundcard/Direwolf , using an Idea expressed by NiAAE for making an APRS/Igate for under $100. its a work in progress. 73, Larry? WB8LBZ El Paso, TX |
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Re: AX.25 Packet Survey
Hi Chris, WG0A-1/BBS WG0A-7/Node Minneapolis, MN (EN34iv) |
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Re: Number of clients.
Thanks! ?That worked a treat. ? I took it to 5. Hopefully, the 8 GB RPi4 it’s running on can handle 5 fine. ?Thanks again.
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On Tuesday, April 26, 2022, 5:11 PM, WB2OSZ <wb2osz@...> wrote:
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Re: Direwolf as a TNC Help
Thank you for the reply. Such as putting it in a APRS bridge or something of the sort. Bridging VHF to HF such as in the situation of being unattended for any reason there by allowing a local station to reach far away stations and visa versa while off the grid. |
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Re: AX.25 Packet Survey
A friend of mine and I are getting more and more into APRS. We love the messaging and optional tracking/Txing location features. GigaIPC QBIX Pro AMD Ryzen V1605B Indestrial Embedded Fanless PC 32GB RAM |
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Re: AX.25 Packet Survey
Chris Lance WW2BSA
Thank you Greg for taking the time to respond.
73 de Prof. Chris Lance
Radio Station Manager
Mount Allamuchy Scout Reservation
“Making Packet Great Again!”
ARRL Life Member
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Re: Number of clients.
开云体育Hello J K, It's unclear if Direwolf's support can be expanded to support more sound devices but I bet the hard work is in the *test* of this change.? I really doubt many people would need such a thing.? Why?? A single instance of Direwolf can support up to three stereo sound devices ultimately supporting up to SIX different radios (one radio on the left channel, another radio on the right channel).? That said, there are limitations with this setup such as Direwolf cannot interdependently transmit (aka asynchronously) send to all it's channels.? It has to do this sequentially going from channel 0 all the way through channel 5.? This isn't to much of a problem for almost all installations but it's something to consider. If you really need more active Direwolf channels, you can simply start up a second, third, etc instance of the Direwolf binary specifying different direwolf configuration files.? As long as the different direwolf configuration files specify different sound devices, you should be good.? The main limitation of this approach is that you won't be able to interconnect the different packet channels together for say digipeating, etc.? Curious, what is your specific need to support more than six radios per instance of Direwolf? --David KI6ZHD On 04/26/2022 02:52 AM, J K via
groups.io wrote:
Can Direwolf be compiled so it supports more than three clients? Sent from my iPhone 13 Pro Max |
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Re: Direwolf as a TNC Help
开云体育Hello Patrick, I need Direwolf to connect directly to the SCU-17 that is connect to the 300DR or at least directly through some virtual interface to the USB sound interface as I have 2 radio connected to the same machine. This is very possible. Only one sound device will be available at any one time to a program but if you operate "digital HF" on your FT857 using SCU-17#1 while you operate "VHF APRS" on your FTM300 using SCU-17#2, that will work fine.? Any other combination than that will be very difficult if not impossible as neither radio supports dual sound inputs.
Have you read the Direwolf User Guide and given it a try?? ?? Please do can some back here if you have any problems.? If you're currently stuck, please provide lots of details of what's the issue and only then can people really help you. --David KI6ZHD |
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Re: AX.25 Packet Survey
WB7GR-10 APRS digi / igate Computer: Rpi 3B+ / 32 bit / buster / direwolf 1.6 Generic Fleabay Soundcard Radio: Kenwood TH-79 ht Greg Rix, WB7GR On Fri, Apr 22, 2022 at 10:56 AM Michael Wright <mfwright@...> wrote:
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Direwolf as a TNC Help
Setup... FTM-857D |
Brent WG0A