Re: [amsat-bb] Funcube Dongle Pro+ w/GQRX (Ubuntu)
Ah ha! The driver wasn't able to reserve enough bandwidth on the USB hub for the 192 kb/s 16-bit "stereo" audio stream. Try moving it to another USB port. Most computers have several USB hubs, and it's not obvious how the various sockets connect to them. Try temporarily disconnecting any other USB audio interfaces you might have.
Phil
Phil, I'm sure you've probably seen my other response, but at least you are putting a technical explanation behind it. Yep, while it still doesn't work AT ALL on my small "backup" computer, I plugged it directly into the USB 3.0 port on my primary shack computer and it is now working. Thanks everyone for giving me some time to help me figure this one out!
--Roy K3RLD
I find all the dongles, including FCDPP, to work best with external powered USB hubs. When in doubt, try that. Too many flakey results otherwise.
Mark N8MH
On Sun, Oct 11, 2020 at 4:26 PM Roy Dean via AMSAT-BB [email protected] wrote:
Ah ha! The driver wasn't able to reserve enough bandwidth on the USB hub for the 192 kb/s 16-bit "stereo" audio stream. Try moving it to another USB port. Most computers have several USB hubs, and it's not obvious how the various sockets connect to them. Try temporarily disconnecting any other USB audio interfaces you might have.
Phil
Phil, I'm sure you've probably seen my other response, but at least you are putting a technical explanation behind it. Yep, while it still doesn't work AT ALL on my small "backup" computer, I plugged it directly into the USB 3.0 port on my primary shack computer and it is now working. Thanks everyone for giving me some time to help me figure this one out!
--Roy K3RLD _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
On 10/11/20 15:27, Mark L. Hammond via AMSAT-BB wrote:
I find all the dongles, including FCDPP, to work best with external powered USB hubs. When in doubt, try that. Too many flakey results otherwise.
I agree, the Raspberry Pi is especially notorious for not being able to power USB devices.
But I don't think that's the case here. The message about not being able to allocate enough USB bandwidth is the key.
Phil
Mark, believe it or not, I tried it on a powered hub and it doesn't work, but it works just fine directly in the USB 3.0 port.
--Roy K3RLD
On Sun, Oct 11, 2020 at 6:27 PM Mark L. Hammond [email protected] wrote:
I find all the dongles, including FCDPP, to work best with external powered USB hubs. When in doubt, try that. Too many flakey results otherwise.
Mark N8MH
Like Phil says, it is probably related to the bandwidth available through the chain of hubs you are using. (There are usually hubs WITHIN the computer as well as external). Interesting, though. I do use an external powered hub which works fine (but using a Windows PC).
Anyway, I'm glad you got it going.
73, Burns WB1FJ
On Mon, Oct 12, 2020 at 8:20 AM Roy Dean via AMSAT-BB [email protected] wrote:
Mark, believe it or not, I tried it on a powered hub and it doesn't work, but it works just fine directly in the USB 3.0 port.
--Roy K3RLD
On Sun, Oct 11, 2020 at 6:27 PM Mark L. Hammond [email protected] wrote:
I find all the dongles, including FCDPP, to work best with external powered USB hubs. When in doubt, try that. Too many flakey results otherwise.
Mark N8MH
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
On 10/12/20 06:36, Burns Fisher via AMSAT-BB wrote:
Like Phil says, it is probably related to the bandwidth available through the chain of hubs you are using. (There are usually hubs WITHIN the computer as well as external). Interesting, though. I do use an external powered hub which works fine (but using a Windows PC).
Anyway, I'm glad you got it going.
Same here, glad it works.
Another thing to watch about powered hubs: some have internal DC-DC switching converters that can give you grief, especially at HF. I have a 3.0 powered hub from Amazon that takes 12V. I considered this a feature, as I could run it from my station 12V power supply, but the noise can be noticeable.
The battle against switcher RFI in my shack continues. These little buggers are everywhere!
Phil
participants (4)
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Burns Fisher -
Mark L. Hammond -
Phil Karn -
Roy Dean