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Very interesting this device has native 32000 support.? I don't think I've seen that before.
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No idea, I didn't even know how to pull the data from the devices to figure that out, so thank you!
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I'm not sure why you're seeing TWO of these though.? That's unusual if not wrong unless you have two of these unit connected
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Yes, I do have two of this connected to this machine. One for my 857 and one for the 300DR
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Your previous email said you were using "ADEVICE plughw:CARD=CODEC,DEV=0" aka.. you ARE using the "plughw" aspect of the ALSA sound system.? Anyway.. can provide some sound captures of direwolf running your SCU-17 at say 44100 and 48000 which DON'T decode on your other station?? This shouldn't be happening.
Btw.. what is your other station using for a soundcard, TNC, etc?
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Yea, I realized I already had plughw set correctly after I sent that massage but I was in a hurry and didn't want to blow up people's emails with the same message.
My other stations that are listening are a Raspberry Pi using a CMedia sound fob running direwolf connected to a old Kenwood commercial radio that was repurposed just to act as a iGate for the local area. We had a very large gap here in N Idaho that we filled back in.
The other radio is a Yeasu FT3D hand held, neither of them would decode at 44100 or 48000
48000 sample rate gave me the following...
Dire Wolf DEVELOPMENT version 1.7 E (May? 1 2022)
Includes optional support for:? gpsd hamlib cm108-ptt
Reading config file direwolf.conf
Audio device for both receive and transmit: plughw:CARD=CODEC,DEV=0? (channel 0)
Channel 0: 1200 baud, AFSK 1200 & 2200 Hz, A+, 48000 sample rate.
Warning: Calculated pre filter size of 417 is too large.
Decrease the audio sample rate or increase the decimation factor.
You can use -D2 or -D3, on the command line, to down-sample the audio rate
before demodulating.? This greatly decreases the CPU requirements with little
impact on the decoding performance.? This is useful for a slow ARM processor,
such as with a Raspberry Pi model 1.
Ready to accept AGW client application 0 on port 8000 ...
Ready to accept KISS TCP client application 0 on port 8001 ...
Interestingly enough 48000 worked for some reason this time. I've tried it before and it didn't.
Got a 100% response
44100 on the other hand is attached as a wave file recorded from my iGate using FLDigi, it decoded once out of many tries.
The iGate is using a CMedia sound fob
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Btw.. for your compiler errors on v1.7, this is an issue with gpsd and it's ever changing libraries.? If you can DISABLE the support for gpsd at compile time just for this test, I think that will get you going.
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Ahh, good to know, but how do I disable support for gpsd?
As I'm just using direwolf as a TNC in this case I don't need it enabled but I'll add it to my notes in case I ever need to recompile and add it back in.
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Ugh.. sorry.. I was forgetting that the unit here is 10s of milliseconds.?? What you should shoot for here is say 120 to 200ms.? In Direwolf syntax, that should be a "12" to a "20". Start at "20" and see if everything works in communicating to remote packet stations (not just home packet stations).? Then slowly work your way down in say 25ms increments.? Since the FTM300 is a digital radio, I would think it can support faster than average key up times of about 150ms but you'll just have to experiment here
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Adjusted!
I'll give it some testing later on but 20 sounds nice, there's not a lot of lag between key up and actual packet sending and decoding was working well. 100% success. Only small issue I see is I can't seem to get my audio level below about 70 to 80. Any lower and the pot on the SCU-17 goes quiet and adjusting it via alsamixer does nothing.
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See the Direwolf User Guide in the "MODEM" section.
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I'm content with /1. This machine is perfectly capable and is capable of running Windows 10 in a virtual environment while running everything else. Sure it slows a small bit but nothing that bothers me
Between being a quad core 3.2Ghz w/HT and 32GB of RAM it should be fine
Think I should add E+ or since it's default I presume it's assumed?
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I have it all written down:
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Wow, that's a heck of a guide!
Looks like I've got some reading to do. I can't say I'll read it all right now but I am saving it to PDF for reference offline.
Thanks a ton!
