Re: How to widen ssb transmission bandwidth
Hello Ryan,
The filtering is built into the speech processing. There are two stages and it all happens at 8 ksps to save processor time. So I can't increase to 4000 Hz bandwidth anyway. Maybe a little, but then everything needs a redesign. All filters are optimized Parks-McClellan. Code is in C.
Jim
N2ADR
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Re: Successful new install on raspberry pi but fails to calibrate
Hello Nigel,
I mean listening to the Behrenger's digital USB output, via an
audio app of some sort on your computer, rather than via Quisk.
Good luck!
-- Ben, AC2YD --
On 12/5/22 09:35, Nigel Johnson MIEEE
via groups.io wrote:
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The line2 by Behringer
does not have outputs, just inputs.?
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Re: Successful new install on raspberry pi but fails to calibrate
The line2 by Behringer does
not have outputs, just inputs.?
Unfortunately, having
tested with the outboard UF0202, I built the Softrock into an
Altoids tin for RF isolation and then wrapped it thing in
metallised foil - the wires come out to the USB sound card and I
really don't want to rip it apart when it is working!
The audio heard on my
remote laptop five floors below sounds perfect, the only thing
is the mountain in the middle of the bandspan and the manual
says that is bad.
I have played with
amplitude and phase of the IQ signals, to no avail.? I also
reversed them, but that just made the target signal come out on
the wrong side of the VFO so I put them back.
So it looks like my only hope is in the driver.
73
Nigel
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
On 2022-12-04 21:58, Ben Cahill wrote:
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Hello
Nigel,
I'm as mystified as you are, but I would be surprised if a generic
driver would do that sort of pre-emphasis processing (I could be
wrong).
Have you tried simply listening to the audio coming from your
sound card (without going through Quisk)?? I'm wondering if the
raw sound might give a clue as to the origin of the bump.? Perhaps
try comparing the sound from your Line2 USB with your UFO202?
Good luck!
-- Ben, AC2YD --
On 12/3/22 21:42, Nigel Johnson MIEEE via groups.io wrote:
OK, I brought the box with the softrock 40
ensemble and raspberry pi down from the roof and hooked it up to
the service monitor.? ?I can clearly see there are no images of
any signal that I inject at normal levels playing with it around
7.12 MHz.? The only way I can see images is if I turn the
service monitor's attenuator way up beyond any signals that I
would ever receive, hundreds of mV of signal. It clearly shows
and demodulates AM with a few uV of RF. When I had it up on the
roof I could clearly demodulate WWV, CHU, some broadcast
stations and 40m CW signals, so I know it is working.
The noise level at the edges of the screen is sitting at around
-80 dBm, but there is still this mountain rising by 30dB in the
noise floor +/- 10 kHz from the VFO (on 40m)
Right now I think I am in need of somebody who can help me debug
the linux driver.? I originally tested this setup with a
Behringer UFO202 USB sound card (which uses a TI chip), but when
I built it into a small box to put up on the roof I bought a
Behrigner Line2 USB for the size, which uses a C-Media chip.?
That is when the mountain appeared.
I cannot see anywhere that the driver is named to differentiate
what chip it is expecting, it is just called snd_usb_audio.? I
perceive that there is something in the driver that is
pre-emphasizing the lower frequencies.? There is very little
info on the C-Media web site, they obviously are oriented to
just supplying chips to board makers.
Is there anybody in this group that has experience with linux
drivers?
73 de Nigel ve3id
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Re: Successful new install on raspberry pi but fails to calibrate
Hello Nigel,
I'm as mystified as you are, but I would be surprised if a generic driver would do that sort of pre-emphasis processing (I could be wrong).
Have you tried simply listening to the audio coming from your sound card (without going through Quisk)?? I'm wondering if the raw sound might give a clue as to the origin of the bump.? Perhaps try comparing the sound from your Line2 USB with your UFO202?
Good luck!
-- Ben, AC2YD --
toggle quoted message
Show quoted text
On 12/3/22 21:42, Nigel Johnson MIEEE via groups.io wrote: OK, I brought the box with the softrock 40 ensemble and raspberry pi down from the roof and hooked it up to the service monitor.? ?I can clearly see there are no images of any signal that I inject at normal levels playing with it around 7.12 MHz.? The only way I can see images is if I turn the service monitor's attenuator way up beyond any signals that I would ever receive, hundreds of mV of signal. It clearly shows and demodulates AM with a few uV of RF. When I had it up on the roof I could clearly demodulate WWV, CHU, some broadcast stations and 40m CW signals, so I know it is working.
The noise level at the edges of the screen is sitting at around -80 dBm, but there is still this mountain rising by 30dB in the noise floor +/- 10 kHz from the VFO (on 40m)
Right now I think I am in need of somebody who can help me debug the linux driver.? I originally tested this setup with a Behringer UFO202 USB sound card (which uses a TI chip), but when I built it into a small box to put up on the roof I bought a Behrigner Line2 USB for the size, which uses a C-Media chip.? That is when the mountain appeared.
I cannot see anywhere that the driver is named to differentiate what chip it is expecting, it is just called snd_usb_audio.? I perceive that there is something in the driver that is pre-emphasizing the lower frequencies.? There is very little info on the C-Media web site, they obviously are oriented to just supplying chips to board makers.
Is there anybody in this group that has experience with linux drivers?
73 de Nigel ve3id
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Re: Checking remote ports
Thanks Jim,
Well I can happily report that the security works 100%.
mni tnx, Graeme ZL2APV
On 5/12/22 09:01, jimahlstrom wrote:
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Hello Graeme,
You can not telnet into port 4585 because you can not answer the
security challenge from the remote. Remember that the pass phrase
must be present on both ends. This design is meant to prevent an
attacker from taking over your station.
Jim
N2ADR
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Re: How to widen ssb transmission bandwidth
Jim,
Thank you for the response. ?That is unfortunate as having the nr2 option in quisk is what brought me back to it. ?Nr2 is work perfect btw compared side by side with thetis. ?There is no option to edit the transmission bandwidth outside of the user interface? ?Like a simple configuration file?
thanks
ryan
kk6dzb
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Re: Quisk Version 4.2.13 December 2022
Hello Jim,
Everything seems to be working well. Thanks for getting HiQSDR running, I will have to get it out of the cupboard and run it again to test. I have had a QSO on SSB and CW using my HL2 and this is just great. I did not get any dropout of the graphic display but this did not always happen so I will continue to test and report any failure (or success hi). Many thanks for all that you have done.
73, Graeme ZL2APV
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Re: How to widen ssb transmission bandwidth
Hello Ryan,
There is no option to adjust Tx bandwidth. Using an external equalizer to limit high frequencies will not work. The Quisk speech processing will widen the bandwidth even if highs are not present. Bandwidth must be limited after speech processing.
Jim
N2ADR
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Quisk Version 4.2.13 December 2022
Python 2 was obsolete as of January 1, 2020. And the new code by Ben, AC2YD, needs Python 3. It is troublesome to write code that runs on both Python 2 and Python 3.? So it is time to stop supporting Python 2 in Quisk. Please upgrade to Python 3. If you have both versions on your computer use Python 3 for Quisk.
?
Some have reported that the remote Quisk graph stops after a long Tx. No graph data is sent during Tx, so perhaps the open UDP port has expired. I added keepalive graph data that is sent at one second intervals. Let's see if that fixes it.
?
I added support for the HiQSDR radio to Remote Quisk. I corrected some drawing errors on the config screens. I removed the "Help with Radios" config tab and moved the text to the documentation available from the Help button.
Jim
N2ADR
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Re: Checking remote ports
Hello Don,
Well I still can't do it but at least I know what it looks like when it is going. I'll try some other things, maybe locking my firewall down to TCP on that port has something to do with it so I will see what other options I have.
Thanks for your response, 73, Graeme ZL2APV
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On 3/12/22 20:20, don wrote:
This is what I get on port 4585
don@aorus:~/Desktop$ telnet hpcq2.a 4585
Trying 192.168.2.71...
Connected to hpcq2.a.
Escape character is '^]'.
TOKEN;cecafa040150e699d282604403d841392fac5367ad6dddbb989d6eef558e5c02
HL2_TEMP;;
HL2_TEMP;;
M;? S5?? -64.41 dB
HL2_TEMP;;
M;? S5?? -64.41 dB
Ports 4586 and 4587 won't connect to telnet.
Don Magee
G4HAJ
On 02/12/2022 02:04, Graeme Jury wrote:
Hello group,
I have been working on my remote over the internet and have run into some mysteries. To test my path to the Quisk-remote software I have been trying to telnet? nn.nn.nn.nn port
gvj@DLap:~$ telnet nn.nn.nn.nn 4585
Trying nn.nn.nn.nn...
telnet: Unable to connect to remote host: Connection refused
gvj@DLap:~$ telnet nn.nn.nn.nn pppp
Trying nn.nn.nn.nn...
Connected to nn.nn.nn.nn.
Escape character is '^]'.
In the first case I was trying the command port for Quisk and was refused. In the second case I was telneting to my remote shack controller and was able to connect perfectly as I can for port 22 (ssh). I know that port 4585 works because I can connect remotely over the internet and apart from getting RF into my home network and dropping the command port it works 100% I am OK at QRP levels and strangely enough with CW.
73, Graeme ZL2APV
Can anyone explain why I can't telnet to quisk on 4585/6/7 please?
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How to widen ssb transmission bandwidth
Trying to figure out how to widen the transmit bandwidth in side band. ?Currently looking at it on another sdr panadapter it’s only 2.7 ish khz wide. ?I would like to go out to at least 3khz and possibly 4 for essb. ?Using an external eq i can clip all the higher frequencies. ?Just cannot figure out where to change the bandwidth.?
thank you
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Re: Successful new install on raspberry pi but fails to calibrate
OK, I brought the box with the softrock 40 ensemble and raspberry pi down from the roof and hooked it up to the service monitor.? ?I can clearly see there are no images of any signal that I inject at normal levels playing with it around 7.12 MHz.? The only way I can see images is if I turn the service monitor's attenuator way up beyond any signals that I would ever receive, hundreds of mV of signal. It clearly shows and demodulates AM with a few uV of RF.? When I had it up on the roof I could clearly demodulate WWV, CHU,? some broadcast stations and 40m CW signals, so I know it is working.
The noise level at the edges of the screen is sitting at around -80 dBm, but there is still this mountain rising by 30dB in the noise floor +/- 10 kHz from the VFO (on 40m)
Right now I think I am in need of somebody who can help me debug the linux driver.? I originally tested this setup with a Behringer UFO202 USB sound card (which uses a TI chip), but when I built it into a small box to put up on the roof I bought a Behrigner Line2 USB for the size, which uses a C-Media chip.? That is when the mountain appeared.
I cannot see anywhere that the driver is named to differentiate what chip it is expecting, it is just called snd_usb_audio.? I perceive that there is something in the driver that is pre-emphasizing the lower frequencies.? There is very little info on the C-Media web site, they obviously are oriented to just supplying chips to board makers.
Is there anybody in this group that has experience with linux drivers?
73 de Nigel ve3id
|
Re: Checking remote ports
This is what I get on port 4585
don@aorus:~/Desktop$ telnet hpcq2.a 4585
Trying 192.168.2.71...
Connected to hpcq2.a.
Escape character is '^]'.
TOKEN;cecafa040150e699d282604403d841392fac5367ad6dddbb989d6eef558e5c02
HL2_TEMP;;
HL2_TEMP;;
M; S5 -64.41 dB
HL2_TEMP;;
M; S5 -64.41 dB
Ports 4586 and 4587 won't connect to telnet.
Don Magee
G4HAJ
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Show quoted text
On 02/12/2022 02:04, Graeme Jury wrote: Hello group,
I have been working on my remote over the internet and have run into some mysteries. To test my path to the Quisk-remote software I have been trying to telnet? nn.nn.nn.nn port
gvj@DLap:~$ telnet nn.nn.nn.nn 4585
Trying nn.nn.nn.nn...
telnet: Unable to connect to remote host: Connection refused
gvj@DLap:~$ telnet nn.nn.nn.nn pppp
Trying nn.nn.nn.nn...
Connected to nn.nn.nn.nn.
Escape character is '^]'.
In the first case I was trying the command port for Quisk and was refused. In the second case I was telneting to my remote shack controller and was able to connect perfectly as I can for port 22 (ssh). I know that port 4585 works because I can connect remotely over the internet and apart from getting RF into my home network and dropping the command port it works 100% I am OK at QRP levels and strangely enough with CW.
73, Graeme ZL2APV
Can anyone explain why I can't telnet to quisk on 4585/6/7 please?
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Re: Peaberry SDR and quisk no transmitter output
No problem! ?I have done it too. ?Hopefully someone with some possible heavy linux experience can chime in.
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Re: Peaberry SDR and quisk no transmitter output
Sorry Ryan,
I have been leading you up the garden path. I missed that it is a
Peaberry that you are using not a Hermes-Lite2 which all my
remarks applied too so forget what I said and sorry for the
misinformation. I guess that I shouldn't work from my mobile phone
at 1 am when I am tired hi.
73, Graeme ZL2APV
On 3/12/22 14:26, Ryan Wesolowski via groups.io wrote:
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Graeme,
I am not running remote on this. ?Maybe in the future. ?Don’t
have a hl2 just the peaberry which is essentially a softrock
with a built in sound card. ?Your saying open hl2 enable
transmit and revert back to the softrock configuration? ?A
little confused.
By the way I do have a hermes 16bit board but currently thats on
thetis. ?
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Re: Peaberry SDR and quisk no transmitter output
Just an update
Installed quisk on my desktop running dual boot with the same linux mint version as the laptop.? Connect the peaberry set everything up and I get 1 watt output at full drive which is what it should.? There are no errors in the audio.? So now I am kinda stuck where to go from here.? I guess this is not technically a quisk or peaberry issue but something with ALSA on the laptop?? I am certainly not a heavy linux user so if anyone has any ideas?? I tried re installing quisk and tried an earlier version on the laptop no luck.? The desktop has the latest version of quisk.?
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Re: Peaberry SDR and quisk no transmitter output
Graeme,
I am not running remote on this. ?Maybe in the future. ?Don’t have a hl2 just the peaberry which is essentially a softrock with a built in sound card. ?Your saying open hl2 enable transmit and revert back to the softrock configuration? ?A little confused.
By the way I do have a hermes 16bit board but currently thats on thetis. ?
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Re: Peaberry SDR and quisk no transmitter output
Just another thought, you may need to make this setting while HL2 is the hardware file, then switch to Ben's remote hardware file - going from memory here, Graeme.
Ahh OK you are using Quisk Ctl-head. The setting needs to be made on Quisk-remote, the Ctl-head will inherit this.
73, Graeme ZL2APV?
On Sat, 3 Dec 2022, 12:12 Ryan Wesolowski via , <cosmo1stgen= [email protected]> wrote: Graeme,
No problem with the time zone. Appreciate the help I am not in a desperate rush! ? I do not see the pa option.? Please see attached photo. ?
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Re: Peaberry SDR and quisk no transmitter output
Ahh OK you are using Quisk Ctl-head. The setting needs to be made on Quisk-remote, the Ctl-head will inherit this.
73, Graeme ZL2APV?
On Sat, 3 Dec 2022, 12:12 Ryan Wesolowski via , <cosmo1stgen= [email protected]> wrote: Graeme,
No problem with the time zone. Appreciate the help I am not in a desperate rush! ? I do not see the pa option.? Please see attached photo. ?
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Re: Peaberry SDR and quisk no transmitter output
Graeme,
No problem with the time zone. Appreciate the help I am not in a desperate rush! ? I do not see the pa option. ?Please see attached photo. ?
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Nigel Johnson MIEEE
