Date   

Lime Calibration (RX, TX)

Simon Brown
 

Hi All,

 

I have been working with the Lime team and now have very good calibration routines. I plan on integrating this code tomorrow and getting the test team to give me feedback.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


Re: Sounds as though persons are speaking under water!

Stu C <stu@...>
 

Dave (or  others willing to test),
Would anyone like to try the following steps, see if any affect it?
https://www.drivereasy.com/knowledge/sound-stuttering-distortion-problem-on-windows-107-solved/

Also I have seen mention of WiFi driver having an impact on Realtek audio running under Win10 (yeah no idea..)
I think the baseline test for software facing Realtek is to get the latest drivers for the chipsets from Realtek rather than the Windows provided or manufacturers.

Disclaimer - Obviously with drivers/internet please don't search for anything "Driver" then install the"Driver software updater" junk that will be the first ten sponsored links.

I may have posted this before, sorry if I have.

Stu

On 03/07/2019 15:54, D R via Groups.Io wrote:
Hi Simon,

I live quite close to John, and I've just been testing to see if I can replicate what John is hearing.

Running SDRC on my Win7 desktop I get perfect audio from all your radios via your server, but on my two Win10 laptops the stuttering is horrendous and the audio is unintelligible (like Daleks with pulsing speech) - whether the laptops are running on wireless (fast AC) or 1GB ethernet.  Audio from any other source on them is perfect.  The problem isn't confined to your radios, as it's the same with any other active radio I can find on the server, ie perfect on the Win7 PC, but unusable on the Win10 machines.  It may be a data transfer problem rather than an audio bug as, with x4 Buffer and Max Buffer Fill, the waterfall also moves in bursts about a second apart, in sync with the audio. CPU / GPU usage on all machines is negligible, so it's not a processing problem.  Some hidden change in Win10 causing a conflict in SDRC?

I've just seen John's logfile as I was about to post this: it contains lots of V3 Server Flow Control entries - my logfiles on the Win10 laptops are also full of these, but they are completely absent in the logfile on the Win7 PC!!

Regards,
Dave


On Wednesday, 3 July 2019, 10:52:28 GMT+1, Simon Brown <simon@sdr-radio.com> wrote:


John,

Always attach screenshots and logfiles.

Simon Brown, G4ELI

https://www.sdr-radio.com <https://www.sdr-radio.com/>

*From:*main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> *On Behalf Of *John Barnett
*Sent:* 03 July 2019 10:04
*To:* main@sdr-radio.groups.io
*Subject:* Re: [SDR-Radio] Sounds as though persons are speaking under water!

Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.



Regards
John Barnett

York North Yorkshire Locator IO93lw



On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@sdr-radio.com <mailto:simon@sdr-radio.com>> wrote:

John,

Try listening through USB headphones or just any other playback
device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <mailto:main@SDR-Radio.groups.io>
<main@SDR-Radio.groups.io <mailto:main@SDR-Radio.groups.io>> On
Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io <mailto:main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Sounds as though persons are speaking
under water!

Play back of recording from attached last message plays back OK
with no distortion. Guess it must be a driver problem with windows
10 19.03 Suggestion as to where to start looking to solve the
problem please.







Re: Sounds as though persons are speaking under water!

D R
 

Hi Simon,

I live quite close to John, and I've just been testing to see if I can replicate what John is hearing.

Running SDRC on my Win7 desktop I get perfect audio from all your radios via your server, but on my two Win10 laptops the stuttering is horrendous and the audio is unintelligible (like Daleks with pulsing speech) - whether the laptops are running on wireless (fast AC) or 1GB ethernet.  Audio from any other source on them is perfect.  The problem isn't confined to your radios, as it's the same with any other active radio I can find on the server, ie perfect on the Win7 PC, but unusable on the Win10 machines.  It may be a data transfer problem rather than an audio bug as, with x4 Buffer and Max Buffer Fill, the waterfall also moves in bursts about a second apart, in sync with the audio.  CPU / GPU usage on all machines is negligible, so it's not a processing problem.  Some hidden change in Win10 causing a conflict in SDRC?

I've just seen John's logfile as I was about to post this: it contains lots of V3 Server Flow Control entries - my logfiles on the Win10 laptops are also full of these, but they are completely absent in the logfile on the Win7 PC!!

Regards,
Dave


On Wednesday, 3 July 2019, 10:52:28 GMT+1, Simon Brown <simon@...> wrote:


John,

 

Always attach screenshots and logfiles.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 03 July 2019 10:04
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

 

Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.



Regards
John Barnett

York North Yorkshire Locator IO93lw



 

 

On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@...> wrote:

John,

Try listening through USB headphones or just any other playback device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

Play back of recording from attached last message plays back OK with no distortion. Guess it must be a driver problem with windows 10 19.03 Suggestion as to where to start looking to solve the problem please.







Re: Sounds as though persons are speaking under water!

John Barnett
 


As requested Simon.


Regards
John Barnett

York North Yorkshire Locator IO93lw






On Wed, 3 Jul 2019 at 10:52, Simon Brown <simon@...> wrote:

John,

 

Always attach screenshots and logfiles.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 03 July 2019 10:04
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

 

Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.



Regards
John Barnett

York North Yorkshire Locator IO93lw



 

 

On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@...> wrote:

John,

Try listening through USB headphones or just any other playback device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

Play back of recording from attached last message plays back OK with no distortion. Guess it must be a driver problem with windows 10 19.03 Suggestion as to where to start looking to solve the problem please.







Re: i5 SFF Desktop / CUDA

Allan Isaacs
 

I’ve just built three new computers. A server plus two others, all in small ITX cases.

The Intel code is not very useful as a yardstick because of the changes in generation so you may find an old i7 is much poorer than a new dual core.

Try the following which are all “Coffeelake” compatible:

Intel G5400, Motherboard Asrock B360M-ITX/AC, Riotoro case type CR280, 16GB Corsair RAM CMK16GX4M2A2400C16, SSD 480GB, Pulse 500W PSU.

You should be able to source the above for around £230 plus VAT.

The mini-ITX in the Riotoro case gives you plenty of space and socket 1151 gives you an up-to-date m/b for future upgrades..

With a refurbished computer you’ll have capacitor problems much sooner than with a brand new cut-price computer.

G5400 benchmark is 2183 compared with an i7-6900K at 2187 and an i9-9820 at 2347. Your i5-4570 is 2056.

73 Allan G3PIY


From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Angel M0HDF
Sent: 03 July 2019 11:34
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] i5 SFF Desktop / CUDA

 

Hi

I am considering upgrading my shack/SDR PC. I am currently on a Lenovo T430 laptop.

I have been looking at some SFF refurbished i5-4th gen desktops that offer good performance at an effective cost. SFF - Small form factor is important to me. 
Lenovo M93p i5-4570 3.20GHz SFF 8GB RAM, 240GB solid state, Intel HD 4600 graphics

I can see the the Intel card is not CUDA compatible. 
The SFF seems to make the range of CUDA graphics cards available limited if I wanted to upgrade. I have to investigate this further. 

Not sure what impact has a CUDA card on the performance of SDRC/CPU load? Thoughts?

73 Angel
M0HDF






 


Re: i5 SFF Desktop / CUDA

Simon Brown
 

Hi,

 

A good graphics card helps:

 

  • I use Direct-X graphics,
  • Reduces FFT load.

 

The proposed PC is not that great I’m afraid.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Angel M0HDF
Sent: 03 July 2019 11:34
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] i5 SFF Desktop / CUDA

 

Hi

I am considering upgrading my shack/SDR PC. I am currently on a Lenovo T430 laptop.

I have been looking at some SFF refurbished i5-4th gen desktops that offer good performance at an effective cost. SFF - Small form factor is important to me. 
Lenovo M93p i5-4570 3.20GHz SFF 8GB RAM, 240GB solid state, Intel HD 4600 graphics

I can see the the Intel card is not CUDA compatible. 
The SFF seems to make the range of CUDA graphics cards available limited if I wanted to upgrade. I have to investigate this further. 

Not sure what impact has a CUDA card on the performance of SDRC/CPU load? Thoughts?

73 Angel
M0HDF






 


i5 SFF Desktop / CUDA

Angel M0HDF
 

Hi

I am considering upgrading my shack/SDR PC. I am currently on a Lenovo T430 laptop.

I have been looking at some SFF refurbished i5-4th gen desktops that offer good performance at an effective cost. SFF - Small form factor is important to me. 
Lenovo M93p i5-4570 3.20GHz SFF 8GB RAM, 240GB solid state, Intel HD 4600 graphics

I can see the the Intel card is not CUDA compatible. 
The SFF seems to make the range of CUDA graphics cards available limited if I wanted to upgrade. I have to investigate this further. 

Not sure what impact has a CUDA card on the performance of SDRC/CPU load? Thoughts?

73 Angel
M0HDF






 


Re: Sounds as though persons are speaking under water!

Simon Brown
 

John,

 

Always attach screenshots and logfiles.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 03 July 2019 10:04
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

 

Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.



Regards
John Barnett

York North Yorkshire Locator IO93lw



 

 

On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@...> wrote:

John,

Try listening through USB headphones or just any other playback device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

Play back of recording from attached last message plays back OK with no distortion. Guess it must be a driver problem with windows 10 19.03 Suggestion as to where to start looking to solve the problem please.







Re: Sounds as though persons are speaking under water!

MVS Sarma
 

Whether enabling squelch in ssb and tampering the phase delays might have caused the underwater effect  !!!

Sarma vu3zmv

On Wed, 3 Jul 2019, 2:34 pm John Barnett, <swlistener09@...> wrote:
Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.


Regards
John Barnett

York North Yorkshire Locator IO93lw






On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@...> wrote:
John,

Try listening through USB headphones or just any other playback device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

Play back of recording from attached last message plays back OK with no distortion. Guess it must be a driver problem with windows 10 19.03 Suggestion as to where to start looking to solve the problem please.








Re: Sounds as though persons are speaking under water!

John Barnett
 

Hi Simon, I normally use an external sound card which connects to the PC via USB 2. I removed the speakers from the external sound card and plugged the speakers directly into the PC sound card and still have the same problem also stuttering has returned.


Regards
John Barnett

York North Yorkshire Locator IO93lw






On Tue, 2 Jul 2019 at 09:46, Simon Brown <simon@...> wrote:
John,

Try listening through USB headphones or just any other playback device.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John Barnett
Sent: 02 July 2019 09:20
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Sounds as though persons are speaking under water!

Play back of recording from attached last message plays back OK with no distortion. Guess it must be a driver problem with windows 10 19.03 Suggestion as to where to start looking to solve the problem please.








Re: LSB on 40m

jdow
 

On a hunch swap I and Q if you can. I'd expect low frequencies on the right side of the spectrum and high on the left contrary to normal. So that's an easy diagnosis.

{^_^}

On 20190702 14:23:40, tyrnight@gmail.com wrote:
im having a strange issue where I can’t get clarity of voice in 40m with LSB. But I get complete clarity of voice with USB. Most people use LSB for 40m and when I listen on my stand-alone rig I need to use LSB for that band. I’m thinking something is messed up with my sdr-radio profile. Is that possible? Also it seems to be off frequency. I’m using a SoftRock Ensemble II with remote server access to listen.
73, Nick


Re: LSB on 40m

Simon Brown
 

Nick,

 

Screenshots showing the DSP settings help.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of tyrnight@...
Sent: 02 July 2019 22:24
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] LSB on 40m

 

im having a strange issue where I can’t get clarity of voice in 40m with LSB. But I get complete clarity of voice with USB. Most people use LSB for 40m and when I listen on my stand-alone rig I need to use LSB for that band. I’m thinking something is messed up with my sdr-radio profile. Is that possible? Also it seems to be off frequency. I’m using a SoftRock Ensemble II with remote server access to listen. 

 

73, Nick


LSB on 40m

tyrnight@...
 

im having a strange issue where I can’t get clarity of voice in 40m with LSB. But I get complete clarity of voice with USB. Most people use LSB for 40m and when I listen on my stand-alone rig I need to use LSB for that band. I’m thinking something is messed up with my sdr-radio profile. Is that possible? Also it seems to be off frequency. I’m using a SoftRock Ensemble II with remote server access to listen. 

 

73, Nick


Re: DX Patrol Mk 4 and HF with SDR-Radio

jdow
 

I believe I did say the performance at HF for the RTL dongles leaves something to be desired. It works with very limited dynamic range and depending on the mode used very poor sensitivity.

For a dongle like DX Patrol use a VERY poor antenna or put in attenuation until hooking up the antenna only slightly increases noise. Also put in a BCB high pass filter to cut off below 1.6 kHz. (Yes, that impedes use on 160 meters; but, as I say, the dongles leave something to be desired.)

At about twice the price of the DX Patrol you can get an AirSpy HF+ Discovery. It is MUCH nicer on HF and has some limited VHF capability.

{^_^}

On 20190702 08:42:48, EB4APL wrote:
Hi,
As far as I know, this receiver is a RTL TV dongle with an upconverter to cover HF. The limited dynamic range of the A/D converter can make funny things like the one that you are experiencing. Try adjusting the RF gain so you trade sensitivity versus saturation but you will see that the performance in HF is quite poor.
73 de Ignacio, EB4APL
El 02/07/2019 a las 17:28, Francesco Basta escribió:
Hallo Dale and jdow, thanks for the suggestions. I did not feel like putting my (clumsy) hands on other dll's, so I tried what Dale suggested. Unfortunately it did not work. I then contented myself to explore the HF with DX Patrol with HDSDR and indeed it works - but I found strong broadcasting signals on 21 MHz, in the 15 mtr. amateur band. This was already strange, but my heart sank when I tuned the same frequencies with my faithful Yaesu FT-897 and found nothing like that. It has to be some sort of artifact (on a conventional superhet I would think of image frequencies). I think I'll skip HF listening with the little gizmo for a while...

Best regards,
                                  Francesco - PE1F
---
El software de antivirus Avast ha analizado este correo electrónico en busca de virus.
https://www.avast.com/antivirus


Remote access VPN scripts

Bote Man
 

I can’t upload files to the Files section of groups dot io so I put them on my Google Drive for download.

 

https://drive.google.com/drive/folders/1iP4whOjJVtc4aZshUdNjvY3_mVSr9CJz?usp=sharing

 

They are simple and straightforward.

 

You must first create a Windows Remote Access Connection manually and TEST IT.

 

Stupid Windows would give me a meaningless failure message until I did a Google search to discover that I must:

drill down to Network Connections

right-click the VPN connection that I had created -> Properties

go to the Security tab

o Allow these protocols

check “Microsoft CHAP version 2 (MS-CHAP v2)”

and then magically the VPN would connect properly!

 

(I used this to connect into my UBNT EdgeRouter 50 so I can access the remote receiver from anywhere on my LAN)

 

vpn_start.cmd does what it says on the tin. You can put it in the startup folder of Win10 (if you can find it) or create a Task Scheduler entry to start it soon after booting; I employ a short delay to allow the networking subsystem to come up fully.

 

vpn_nailup.ps1 logs the remote Win10 machine into other VPN endpoint. Be certain to change the 3 variables at the top of the script to

1) name of the VPN connection that you created on the Win10 machine

2) user name required by the other VPN endpoint (router)

3) password required by the other VPN endpoint (router)

 

There are a few comments in the scripts that might help.

 

Then use UVNC, Remote Desktop, or whatever FREE application you desire to connect to the remote machine. Since it can now “reach out” to you there is no need for TeamViewer or other “middle man” to intervene.

 

Hope this helps.

 

 

Bote Man

http://www.botecomm.com/bote/radio/streaming.html

 

 

 

From: Pekka Sorjonen
Sent: Monday, 24 June, 2019 23:16
To: main@SDR-Radio.groups.io
Subject: VS: [SDR-Radio] Remote SDR Receiver verses SDRC Server

 

Bote Man,

 

Always interested of new solutions for remote usage. Please unveil the details of Your remote solution 😊?

 

Pekka

 

Lähetetty Windows 10:n Sähköpostista

 

Lähettäjä: Bote Man
Lähetetty: tiistai 25. kesäkuuta 2019 1.06
Vastaanottaja: main@SDR-Radio.groups.io
Aihe: Re: [SDR-Radio] Remote SDR Receiver verses SDRC Server

 

A trick that I am using successfully is to configure the remote Windows 10 machine to automatically establish a VPN connection back to my router, at which point I can use UVNC to access the remote console. This cuts out the middleman, so to speak.

 

It requires a PowerShell script to re-establish the VPN link when it drops. I can provide if there is interest.

 

 

Bote Man

http://www.botecomm.com/bote/radio/streaming.html

 

 

 


--
Bote's Streaming Scanner Feeds
http://www.botecomm.com/bote/radio/streaming.html


Re: compensate for drift / offset consumer LNB

Siegfried Jackstien
 

not yet .... simon hardcoded the telemetry beacon (psk beacon) on 10.489.800.000 as reference

dg9bfc sigi

Am 30.06.2019 um 22:11 schrieb Nino Molinari:

I built a 10GHz ssb transmitter, is it possible to use the drift / compensated function on a frequency different from the telemetry beacon? (example 10.224 OL)


Re: PTT output from USB / RS232 and TIT

Siegfried Jackstien
 

did you engage BOTH button in the beacon lock window??

first starts the beacon receive but second is also needed (play button) to let also the beacon lock WORK

maybe thats the fault??

greetz sigi dg9bfc


Am 02.07.2019 um 21:12 schrieb Adrian G4UVZ via Groups.Io:

Thanks for the info on the USB relay board  I have ordered one!

Regarding the offset When I lock to the wideband beacon I see an indicated offset of around 4KHz, on the lower lock screen  which seems to tie in with difference between transmitted and expected receive frequency

Adrian


Re: PTT output from USB / RS232 and TIT

Adrian G4UVZ <adrianwhatmore248@...>
 

Thanks for the info on the USB relay board  I have ordered one!

Regarding the offset When I lock to the wideband beacon I see an indicated offset of around 4KHz, on the lower lock screen  which seems to tie in with difference between transmitted and expected receive frequency

Adrian


Re: PTT output from USB / RS232 and TIT

Siegfried Jackstien
 


Am 02.07.2019 um 17:50 schrieb Adrian G4UVZ via Groups.Io:
Quick question....probably a long answer!

I am using the program with my Lime to work through Oscar 100..but am running out of fingers !

Is there an option to key the main amplifier via a USB / RS232 automatically when TX is selected on the screen.


yes ... buy a usb relay board on aliexpress or amazon or evilbay or .....

simon supports usb relay ... so with that you can swithc on and off your amp (or if needed switch a coax relay)



Secondly I may  be missing something, but even after syncing the rx using the WB beacon ...the rx is about 4KHz away from the notional frequency ...so netting is not straight forward ..requiring mental arithmetic !..is there a TIT   Transmit Incremental Tuning to address this issue..G4UVZ

IF YOUR RECEIVER IS SET WELL AND ALSO YOUR TRANSMITTER THEN THERE IS NO NEED FOR RIT OR XIT!!!   

if you sync with the beacon ... then tx and rx should be transceive ... if not ... then you have to finetune the lime ...

i own a pluto so can not help with alignment of your lime .... but ... when you change the tuning of tx ... (software correction of ppm value) then it tunes also rx clock .... so you have to wait after a change till the beacon again has locked and synced the tx to rx

i can receive duplex and i just turn the tun9ing till i receive my own voice with NO OFFSET ...

did you make all settings right?? (example the tx offset of 8089.5megs)???

if yes ... then it MUST be the ppm correction of your lime

greetz sigi dg9bfc



PTT output from USB / RS232 and TIT

Adrian G4UVZ <adrianwhatmore248@...>
 

Quick question....probably a long answer!

I am using the program with my Lime to work through Oscar 100..but am running out of fingers !

Is there an option to key the main amplifier via a USB / RS232 automatically when TX is selected on the screen.

Secondly I may  be missing something, but even after syncing the rx using the WB beacon ...the rx is about 4KHz away from the notional frequency ...so netting is not straight forward ..requiring mental arithmetic !..is there a TIT   Transmit Incremental Tuning to address this issue..G4UVZ

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