Re: Quisk Version 4.1.52 December 2019
Thanks Jim,
Not really necessary.
I reported it in case it was intended to be there seeing the space it would take up to the left of the frequency display seemed in similar proportion to the Large screen.
73 ... Sid.
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On 15/12/2019 13:45, jimahlstrom wrote: Hello Sid,
The On/Off button is absent from the small screen version. I could not find the room, and I didn't think it was necessary. Do you think the button is needed for the small screen?
Jim
N2ADR
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks
|
Re: WSJT-X / Quisk - Software problem
OK ... I had them repaired and returned.
I don't know what killed the USB on them but it happened after I did an online update on them both. When I went back to the original image the problem was still there, though the Fire3 worked with a USB 2.0 hub hung off its USB 3.0 port.
The repaired M4 worked, now replaced by the M4v2.
The Fire 3 with their S70 LCD I haven't tried yet as I need to clear a space for it, keyboard and mouse. When it worked it was very fast in operation compared to RPi 3B and even the ODROID-C2's.
I have the ODROID-N2 configured to boot off microSD and rootfs lives on a 1TB USB hard drive ----? the -C2's can be configured the same, but I can't see where the rootfs partition is defined for the nanoPi.
The AtomicPi is configured to boot off a 1TB USB 3.0 HD, simple as it's an x86_64 SBC.
73 ... Sid.
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On 15/12/2019 13:19, Karl Heinz Kremer wrote:
Sid, it¡¯s the Fire3. I know you had some problems with some of their devices and the USB ports no longer working after software updates. So far I have not encountered anything like that. I have not kept up with their new developments. I guess I have to visit their web site :)
Thanks.
Karl Heinz - K5KHK
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks
|
Missing tutorials or bad links?
Just downloaded the latest version and printed the documentation to file.? Under the topic "Linux Problems" regarding audio issues, there are two link:
These links no longer work.? When you go to Linuxplanet, there is no section devoted to tutorials.? There is a section labeled "Storage" which contain further links to other sites.? They are useful, I'd guess, but there is nothing listed earlier than October, 2019.
So, if someone has copies of those tutorials, it might be good to post them in the Files section here.
I'm setting up to use an image provided by PiSDR for a standalone application which uses Quisk.? I would hope that I can upgrade to the latest version.? It appears that the PiSDR uses an OrangePi3 board instead of a Raspberry Pi.? Wish me luck.
BruceN / K4TQL
|
Re: Quisk Version 4.1.52 December 2019
Hello Sid,
The On/Off button is absent from the small screen version. I could not find the room, and I didn't think it was necessary. Do you think the button is needed for the small screen?
Jim
N2ADR
|
Re: WSJT-X / Quisk - Software problem
Sid, it¡¯s the Fire3. I know you had some problems with some of their devices and the USB ports no longer working after software updates. So far I have not encountered anything like that. I have not kept up with their new developments. I guess I have to visit their web site :)?
Thanks.?
Karl Heinz - K5KHK?
|
Re: WSJT-X / Quisk - Software problem
The problem still persists - even with the update 4.1.52 in both Python-versions. What can I try further?
|
Re: WSJT-X / Quisk - Software problem
Hi Karl Heinz,
Which nanoPi do you have?
I recently got the nanoPi-M4v2 4GB with a SATA hat, working well with the usual USB keyboard, mouse, 10 inch touch LCD and a 1TB SATA hard drive.
I also have the aluminium case for it, however the addition of the SATA hat looks like it won't allow the top cover to be fitted.
The eMMC they shipped has Android installed so I'll have to remove that and install Ubuntu.
It's fast.
I've only run quisk on it so far.
73 ... Sid.
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On 14/12/2019 14:43, Karl Heinz Kremer wrote:
Quisk and WSJTX can work together on the same system. I have it working on a nanoPi. I was however not able to use the prepackaged version of WSJTX and had to compile it from sources. The problem was not a package incompatibility but a crash is wsjtx. Compiling it is pretty straight forward, it just takes a long time on something like a Pi.
Karl Heinz - K5KHK
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks
|
Re: Quisk Version 4.1.52 December 2019
Hi Jim Looks like you also cured the freeDV startup under windows. Many thanks. Dave
?
|
Re: Quisk Version 4.1.52 December 2019
Hi Jim,
The ON button does not appear on small screens. Tested with HL2 and HiQSDR.
Checked the Band, Mode and Display buttons in case it was hidden under one of them. Nothing different when comparing quisk_settings.json on Large and Small screens.
When quisk starts up and HL2 is selected, it runs straight away.
On HiQSDR (only option) quisk starts and runs.
HL2 and Large screen AOK.
73 ... Sid.
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On 14/12/2019 18:24, jimahlstrom wrote: I added an On/Off button to Quisk. When Quisk starts the button is "On". When you turn it to "Off", Quisk shuts down the sound system and closes the hardware. When you turn it "On" again, Quisk starts with any new setting made from the Config screens. This provides a way to start Quisk with changed settings, and to re-start your hardware after a power down.
Martin Schaller found and fixed a bug in the Alsa sound system that produced sporadic crashes. Thanks Martin! Max, G7UOZ, found and fixed a bug in the Python3 SoftRock hardware_net.py code. Thanks Max! This Quisk includes a more recent FreeDV library in both 32-bit and 64-bit versions. The Windows SoapySDR interface still requires 64-bit Quisk.
The Config/Status screen now shows the dB level of each open sound device. The maximum level is zero dB. This is meant as an aid to configuring the sound devices.
Jim
N2ADR
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks
|
Re: WSJT-X / Quisk - Software problem
Hello namesake :-)
I did so. But no difference. Once I have started WSJT-X, Quisk's output is dead.
73's
DL6MEE
|
Quisk Version 4.1.52 December 2019
I added an On/Off button to Quisk. When Quisk starts the button is "On". When you turn it to "Off", Quisk shuts down the sound system and closes the hardware. When you turn it "On" again, Quisk starts with any new setting made from the Config screens. This provides a way to start Quisk with changed settings, and to re-start your hardware after a power down.
?
Martin Schaller found and fixed a bug in the Alsa sound system that produced sporadic crashes. Thanks Martin! Max, G7UOZ, found and fixed a bug in the Python3 SoftRock hardware_net.py code. Thanks Max! This Quisk includes a more recent FreeDV library in both 32-bit and 64-bit versions. The Windows SoapySDR interface still requires 64-bit Quisk.
?
The Config/Status screen now shows the dB level of each open sound device. The maximum level is zero dB. This is meant as an aid to configuring the sound devices.
?
Jim
N2ADR
|
Re: WSJT-X / Quisk - Software problem
Quisk and WSJTX can work together on the same system. I have it working on a nanoPi. I was however not able to use the prepackaged version of WSJTX and had to compile it from sources. The problem was not a package incompatibility but a crash is wsjtx. Compiling it is pretty straight forward, it just takes a long time on something like a Pi.?
Karl Heinz - K5KHK?
|
Re: WSJT-X / Quisk - Software problem
Many thanks for your answer, Bob. It's a really good suggestion but I'm using a RPi4 (4 GiB) and Virtual Box/VMware Player aren't available for armhf.
73's
DL6MEE
|
mumble connection for remote
Hello,
I try to connect quisk to a mumble client for remote operation. Mumble can see "quiskdigitaloutput" but which "radio sound output" device must be selected on quisk ?
Has someone tried to interface with mumble ?
Pascal? F6EHP
|
Re: WSJT-X / Quisk - Software problem
I found with my system that there was a binary (only one can be
installed and working) dependency conflict between Quisk and WSJT-X
(plus WSJT-X won't work with my small monitor - too small a
resolution 800X600).?? I'm running Linux Ubuntu 18.04.? If you
install Quisk and then WSJT-X, the WSJT-X install requires you
remove modules Quisk depends on - and if you try installing WSJT-X
first and then Quisk, it removes or disables modules needed for
WSJT-X (Both were the latest versions).
I'm not sure what a workaround would be.? What I've tried here is
running two computers -? a small footprint dedicated to running a
softrock radio using Quisk, and my main system.? I rigged up audio
from the small footprint to the main computer - ran WSJT-X on the
main system.? It seemed to work best.
Maybe you could create a small virtual machine just for runninq
Quisk, and then port the audio in and out from that - I don't know,
I haven't tried (if you're using Linux - for Windows, well, I avoid
that system like the plague!).
Bob
N4FBZ
On 12/13/19 6:06 AM, Karl-Heinz Pischke
wrote:
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Show quoted text
Hello everyone :-)
hope that I'm right here with this problem!
First - there are no difficulties to work with FLDIGI - but if I
start WSJT-X there's no audio (I/Q) output anymore between Quisk
and the soundcard until I restart Quisk. I've done the
installation according to the documentation:
"... Using PulseAudio is the easiest method because Quisk can set
up the loopback devices when it starts. Set Digital Input to
pulse:QuiskDigitalInput.monitor, and set Digital Output to
pulse:QuiskDigitalOutput. These names should be on the drop down
list. If they are missing, make sure that you didn't set
"show_pulse_audio_devices" to False in your config file. Then
restart Quisk. In your digital program, connect the digital input
to QuiskDigitalOutput.monitor and the digital output to
QuiskDigitalInput. These names will be on the sound menu in wsjtx,
and you should be receiving and transmitting digital data.
Fldigi only has a PulseAudio check box, and there is no way to set
the proper device. In this case, first install the program
pavucontrol to control PulseAudio. This is a useful program to
control and understand PulseAudio even if you are not using
digital. Set the Quisk devices as above. Now start both Quisk and
Fldigi, and then pavucontrol. The Playback and Recording screens
in pavucontrol will show the devices being used. Change the Fldigi
playback to QuiskDigitalInput, and the Fldigi recording to Monitor
of QuiskDigitalOutput. Then everything should work ..."
PTT works right and the program is receiving well. Did I
overlooked something?
73's
DL6MEE JO30to
|
WSJT-X / Quisk - Software problem
Hello everyone :-)
hope that I'm right here with this problem!
First - there are no difficulties to work with FLDIGI - but if I start WSJT-X there's no audio (I/Q) output anymore between Quisk and the soundcard until I restart Quisk. I've done the installation according to the documentation:
"... Using PulseAudio is the easiest method because Quisk can set up the loopback devices when it starts. Set Digital Input to pulse:QuiskDigitalInput.monitor, and set Digital Output to pulse:QuiskDigitalOutput. These names should be on the drop down list. If they are missing, make sure that you didn't set "show_pulse_audio_devices" to False in your config file. Then restart Quisk. In your digital program, connect the digital input to QuiskDigitalOutput.monitor and the digital output to QuiskDigitalInput. These names will be on the sound menu in wsjtx, and you should be receiving and transmitting digital data.
Fldigi only has a PulseAudio check box, and there is no way to set the proper device. In this case, first install the program pavucontrol to control PulseAudio. This is a useful program to control and understand PulseAudio even if you are not using digital. Set the Quisk devices as above. Now start both Quisk and Fldigi, and then pavucontrol. The Playback and Recording screens in pavucontrol will show the devices being used. Change the Fldigi playback to QuiskDigitalInput, and the Fldigi recording to Monitor of QuiskDigitalOutput. Then everything should work ..."
PTT works right and the program is receiving well. Have I overlooked something?
73's
DL6MEE JO30to
|
Re: quisk setup for old Softrock RxTx 6.3 - no transmit audio, problem is in software - Quisk or audio setup. (STILL not working right!)
Maybe RF feedback?? 50 mw shouldn't cause it, but YNK.? Then there
are the different ground loops that can occur - although they
usually show up in the audio section if anywhere.? They can be a
bear to track down and eliminate (maybe RF getting into the audio
via a ground loop - although that doesn't sound like a ground loop).
A few months ago I found a bad connection to ground that was making
the Si570 unreliable - the first thing diagnosed and fixed.? That
sort of thing can really deceive you - and act like a ground loop.
On 12/9/19 11:50 AM, Eric Thornton wrote:
toggle quoted message
Show quoted text
For what it's worth,? i am also seeing a buzz on
my rxtx at anything over 50mW when picked up by my rtl dongle.?
Audio input is clean on the scope at .66VRMS when outputting 1W.
Not 100% sure it's real but I'm going to swap the power supply
for a battery when i get time.??
On Mon, Dec 9, 2019, 9:47 AM
Nick < g3vnc@...>
wrote:
Hi Bob
please see comments below...
On 08/12/2019 15:28, Robert D. Bowers wrote:
> I'm transmitting into a load (the softrock output is
about 2mw), and
> using the dongle antenna, a few feet away.
That's +3dBm.? What happens if you drive the softrock at it's
rated
power output i.e. 1W mean, +30dBm?
> If needed, I
> can set that up - I've got a good 50 ohm step attenuator
for doing
> measurements.
I use a 20dB attenuator rated at over 2W followed by a 120dB
step
attenuator for those sort of tests.? I would use coax cables
to connect
rather than rely on the stray signal pickup.? NB: Take care
not to blow
up the receiver.? Start with max attenuation and work down.
> I adjusted the gain, and it does appear to be the
transmitted signal
> itself.? The signal would be (FM mode) a flat-topped
curve, with the
> flat portion about 5khz wide, and the sides slowly
sloping down to
> around 20khz (each direction), where they start dropping
more steeply.
Try it in CW mode or Spot i.e. single tone.? Can you put a
'scope on the
IQ outputs from the sound card?? On CW you should see a sine
wave on
each channel, with 90 deg phase shift between the two
channels.
Measure the level of these signals for 1W output.
> It appears to be noise of some kind - a high-pitched
static (when in FM
> mode, listening to the output of the dongle audio).? For
most of my
> tests, the gain on the audio out to the softrock didn't
affect the shape
> of that signal.? (In SSB mode, it was differently shaped
- two or three
> peaks, with the highest peak rather broad.)
> ...
I suggest that you forget FM and SSB until CW is working
properly.
> I may be onto something.? Somehow the computer audio is
picking up a
> high-pitched static - but I can't figure out where.? It's
not coming
> from the softrock (or as feedback from softrock audio).?
When I set the
> mike gain low enough, when I speak the mike audio
over-rides the static,
> which vanishes for a second or so then fades back in.?
I've been playing
> with turning off and on various audio devices, but
without luck so far.
> (Laugh!) It would be my luck to have acquired a computer
with bad audio,
> but the evidence goes against that (the sound only
appears with Quisk).
> Even then, recording and playing back the audio from the
mike under
> Quisk doesn't show the noise.
Are you using the motherboard sound card?? Do you have another
sound
card you could try?
> I'm also picking up a strong AC buzz in receive using the
softrock, but
> only when I am connected to my main antenna (fan dipole
at 50ft -
> hanging off my tower).
Sounds like a grounding problem.
> The audio itself being put out (by my dongle) is strange
- a high
> pitched hiss or buzz that I've not encountered before
(not plasma TV -
> haven't heard that buzz in a while).
Do you have another receiver you could use to monitor the
signal from
the softrock?
> My wife reported a strong buzz from her computer when I
used my main 2m
> radio (on .52)... the shack and everything here is
grounded and there
> should be nothing there as well.? The P/S for the radio
is not connected
> to the softrock, and turning it off doesn't seem to make
a difference
> with the problems I'm having.? Still, I'm going to scope
that to make
> sure I'm not getting anything there!
Sounds like a separate problem!? In fact there may be several
problems
there.
> It's a tough one... but I should be used to those by
now!? (GRIN!) Next
> test - try a laptop (I think I have one with Quisk on
it).
Good idea.
73
Nick
|
Re: quisk setup for old Softrock RxTx 6.3 - no transmit audio, problem is in software - Quisk or audio setup. (STILL not working right!)
First, the Softrock is only putting out 2mw MAXIMUM.? It's modified for broadband use - I never got the original amp boards and rolled a low power version (my memory was that I designed it for around 50mw - but the response isn't right) - I use external bandpass filters and amplifier (or transverter) for a clean signal over the air.
Yeah, I know how to calculate mw to dBm.? (I could also mention volts P-P into a 50 ohm load, but saying 2 mw gives an accurate indication of the power out.)
I do know how to make a direct connection between a radio and a spectrum analyzer - if I wanted I could cobble together something, but don't need to know the exact amount of attenuation between the dongle and the softrock - just getting the signal from the output down to a level where it doesn't overload the RTL dongle frontend is enough - running this way worked fine.?? I've verified that the broadband signal I'm getting IS the one from the softrock, and not an artifact from something else.
The output was the same on all modes - as far as the spectra.? I'm using FM mode because it's the easiest to mess with because I know what to expect in the spectra, and it's not right (FM gives full RF out - I don't have any provision for a key wired on the softrock so I don't even know if CW would work).? The computer built-in audio is being used for output to speakers and input from mike ONLY... and as I mentioned in the original post, I've tried two different sound cards going to the softrock - one good one (better than 90db dynamic range and 192khz bandwidth) and one functional one (not sure of the dynamic range, but bandwidth 48khz).
I haven't tried a laptop yet because of all that is going on here. I've also been looking for a little USB audio dongle I have that is sufficient for use with a headset - to see if it's the computer built-in audio that is the source of the high-pitched noise (I thought of it earlier, but do have a concern because the mike audio in is limited to 8k and single channel - it should work, but I haven't tried yet).
I know what grounding problems are... I checked that first, then scoped the DC lines (clean - ac and noise below detectable limits). Then I received the buzz in what we thought was the offending radio - and it appears to be a signal generated somewhere nearby - likewise received in my little HT - when I was NOT transmitting on my main 2m rig.
It appears to be two different problems that showed up at the same time (when testing).? I shouldn't have mentioned the buzz issue, but I thought it strange to start the way it did and don't like to immediately discount everything when troubleshooting.
Bob
toggle quoted message
Show quoted text
On 12/9/19 9:47 AM, Nick wrote: Hi Bob
please see comments below...
On 08/12/2019 15:28, Robert D. Bowers wrote:
I'm transmitting into a load (the softrock output is about 2mw), and using the dongle antenna, a few feet away. That's +3dBm.? What happens if you drive the softrock at it's rated power output i.e. 1W mean, +30dBm?
If needed, I can set that up - I've got a good 50 ohm step attenuator for doing measurements. I use a 20dB attenuator rated at over 2W followed by a 120dB step attenuator for those sort of tests.? I would use coax cables to connect rather than rely on the stray signal pickup.? NB: Take care not to blow up the receiver.? Start with max attenuation and work down.
I adjusted the gain, and it does appear to be the transmitted signal itself.? The signal would be (FM mode) a flat-topped curve, with the flat portion about 5khz wide, and the sides slowly sloping down to around 20khz (each direction), where they start dropping more steeply. Try it in CW mode or Spot i.e. single tone.? Can you put a 'scope on the IQ outputs from the sound card?? On CW you should see a sine wave on each channel, with 90 deg phase shift between the two channels.
Measure the level of these signals for 1W output.
It appears to be noise of some kind - a high-pitched static (when in FM mode, listening to the output of the dongle audio).? For most of my tests, the gain on the audio out to the softrock didn't affect the shape of that signal.? (In SSB mode, it was differently shaped - two or three peaks, with the highest peak rather broad.)
... I suggest that you forget FM and SSB until CW is working properly.
I may be onto something.? Somehow the computer audio is picking up a high-pitched static - but I can't figure out where.? It's not coming from the softrock (or as feedback from softrock audio).? When I set the mike gain low enough, when I speak the mike audio over-rides the static, which vanishes for a second or so then fades back in.? I've been playing with turning off and on various audio devices, but without luck so far. (Laugh!) It would be my luck to have acquired a computer with bad audio, but the evidence goes against that (the sound only appears with Quisk). Even then, recording and playing back the audio from the mike under Quisk doesn't show the noise. Are you using the motherboard sound card?? Do you have another sound card you could try?
I'm also picking up a strong AC buzz in receive using the softrock, but only when I am connected to my main antenna (fan dipole at 50ft - hanging off my tower). Sounds like a grounding problem.
The audio itself being put out (by my dongle) is strange - a high pitched hiss or buzz that I've not encountered before (not plasma TV - haven't heard that buzz in a while). Do you have another receiver you could use to monitor the signal from the softrock?
My wife reported a strong buzz from her computer when I used my main 2m radio (on .52)... the shack and everything here is grounded and there should be nothing there as well.? The P/S for the radio is not connected to the softrock, and turning it off doesn't seem to make a difference with the problems I'm having.? Still, I'm going to scope that to make sure I'm not getting anything there! Sounds like a separate problem!? In fact there may be several problems there.
It's a tough one... but I should be used to those by now!? (GRIN!) Next test - try a laptop (I think I have one with Quisk on it). Good idea.
73
Nick
|
Re: quisk setup for old Softrock RxTx 6.3 - no transmit audio, problem is in software - Quisk or audio setup. (STILL not working right!)
For what it's worth,? i am also seeing a buzz on my rxtx at anything over 50mW when picked up by my rtl dongle.? Audio input is clean on the scope at .66VRMS when outputting 1W. Not 100% sure it's real but I'm going to swap the power supply for a battery when i get time.??
On Mon, Dec 9, 2019, 9:47 AM Nick < g3vnc@...> wrote: Hi Bob
please see comments below...
On 08/12/2019 15:28, Robert D. Bowers wrote:
> I'm transmitting into a load (the softrock output is about 2mw), and
> using the dongle antenna, a few feet away.
That's +3dBm.? What happens if you drive the softrock at it's rated
power output i.e. 1W mean, +30dBm?
> If needed, I
> can set that up - I've got a good 50 ohm step attenuator for doing
> measurements.
I use a 20dB attenuator rated at over 2W followed by a 120dB step
attenuator for those sort of tests.? I would use coax cables to connect
rather than rely on the stray signal pickup.? NB: Take care not to blow
up the receiver.? Start with max attenuation and work down.
> I adjusted the gain, and it does appear to be the transmitted signal
> itself.? The signal would be (FM mode) a flat-topped curve, with the
> flat portion about 5khz wide, and the sides slowly sloping down to
> around 20khz (each direction), where they start dropping more steeply.
Try it in CW mode or Spot i.e. single tone.? Can you put a 'scope on the
IQ outputs from the sound card?? On CW you should see a sine wave on
each channel, with 90 deg phase shift between the two channels.
Measure the level of these signals for 1W output.
> It appears to be noise of some kind - a high-pitched static (when in FM
> mode, listening to the output of the dongle audio).? For most of my
> tests, the gain on the audio out to the softrock didn't affect the shape
> of that signal.? (In SSB mode, it was differently shaped - two or three
> peaks, with the highest peak rather broad.)
> ...
I suggest that you forget FM and SSB until CW is working properly.
> I may be onto something.? Somehow the computer audio is picking up a
> high-pitched static - but I can't figure out where.? It's not coming
> from the softrock (or as feedback from softrock audio).? When I set the
> mike gain low enough, when I speak the mike audio over-rides the static,
> which vanishes for a second or so then fades back in.? I've been playing
> with turning off and on various audio devices, but without luck so far.
> (Laugh!) It would be my luck to have acquired a computer with bad audio,
> but the evidence goes against that (the sound only appears with Quisk).
> Even then, recording and playing back the audio from the mike under
> Quisk doesn't show the noise.
Are you using the motherboard sound card?? Do you have another sound
card you could try?
> I'm also picking up a strong AC buzz in receive using the softrock, but
> only when I am connected to my main antenna (fan dipole at 50ft -
> hanging off my tower).
Sounds like a grounding problem.
> The audio itself being put out (by my dongle) is strange - a high
> pitched hiss or buzz that I've not encountered before (not plasma TV -
> haven't heard that buzz in a while).
Do you have another receiver you could use to monitor the signal from
the softrock?
> My wife reported a strong buzz from her computer when I used my main 2m
> radio (on .52)... the shack and everything here is grounded and there
> should be nothing there as well.? The P/S for the radio is not connected
> to the softrock, and turning it off doesn't seem to make a difference
> with the problems I'm having.? Still, I'm going to scope that to make
> sure I'm not getting anything there!
Sounds like a separate problem!? In fact there may be several problems
there.
> It's a tough one... but I should be used to those by now!? (GRIN!) Next
> test - try a laptop (I think I have one with Quisk on it).
Good idea.
73
Nick
|
Re: quisk setup for old Softrock RxTx 6.3 - no transmit audio, problem is in software - Quisk or audio setup. (STILL not working right!)
Hi Bob please see comments below... On 08/12/2019 15:28, Robert D. Bowers wrote: I'm transmitting into a load (the softrock output is about 2mw), and using the dongle antenna, a few feet away. That's +3dBm. What happens if you drive the softrock at it's rated power output i.e. 1W mean, +30dBm? If needed, I can set that up - I've got a good 50 ohm step attenuator for doing measurements. I use a 20dB attenuator rated at over 2W followed by a 120dB step attenuator for those sort of tests. I would use coax cables to connect rather than rely on the stray signal pickup. NB: Take care not to blow up the receiver. Start with max attenuation and work down. I adjusted the gain, and it does appear to be the transmitted signal itself.? The signal would be (FM mode) a flat-topped curve, with the flat portion about 5khz wide, and the sides slowly sloping down to around 20khz (each direction), where they start dropping more steeply. Try it in CW mode or Spot i.e. single tone. Can you put a 'scope on the IQ outputs from the sound card? On CW you should see a sine wave on each channel, with 90 deg phase shift between the two channels. Measure the level of these signals for 1W output. It appears to be noise of some kind - a high-pitched static (when in FM mode, listening to the output of the dongle audio).? For most of my tests, the gain on the audio out to the softrock didn't affect the shape of that signal.? (In SSB mode, it was differently shaped - two or three peaks, with the highest peak rather broad.)
... I suggest that you forget FM and SSB until CW is working properly. I may be onto something.? Somehow the computer audio is picking up a high-pitched static - but I can't figure out where.? It's not coming from the softrock (or as feedback from softrock audio).? When I set the mike gain low enough, when I speak the mike audio over-rides the static, which vanishes for a second or so then fades back in.? I've been playing with turning off and on various audio devices, but without luck so far. (Laugh!) It would be my luck to have acquired a computer with bad audio, but the evidence goes against that (the sound only appears with Quisk). Even then, recording and playing back the audio from the mike under Quisk doesn't show the noise. Are you using the motherboard sound card? Do you have another sound card you could try? I'm also picking up a strong AC buzz in receive using the softrock, but only when I am connected to my main antenna (fan dipole at 50ft - hanging off my tower). Sounds like a grounding problem. The audio itself being put out (by my dongle) is strange - a high pitched hiss or buzz that I've not encountered before (not plasma TV - haven't heard that buzz in a while). Do you have another receiver you could use to monitor the signal from the softrock? My wife reported a strong buzz from her computer when I used my main 2m radio (on .52)... the shack and everything here is grounded and there should be nothing there as well.? The P/S for the radio is not connected to the softrock, and turning it off doesn't seem to make a difference with the problems I'm having.? Still, I'm going to scope that to make sure I'm not getting anything there! Sounds like a separate problem! In fact there may be several problems there. It's a tough one... but I should be used to those by now!? (GRIN!) Next test - try a laptop (I think I have one with Quisk on it). Good idea. 73 Nick
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Sid Boyce