Date   

Re: Fw: LimeSDR Update: End of Life Announcement

Siegfried Jackstien
 

When you go ... your soft will stay ;-)

greetz sigi dg9bfc


Am 02.06.2022 um 07:00 schrieb Simon Brown:

We've all got to go sometime...


From: Crowd Supply <no-reply@...>
Sent: 01 June 2022 19:23
To: Simon Brown <Simon@...>
Subject: LimeSDR Update: End of Life Announcement
 

Crowd Supply


An update from the LimeSDR team.


End of Life Announcement

About three months ago, we announced LimeSDR Mini had transitioned to end-of-life status. At the time, we were hopeful that LimeSDR could remain in production because it uses a different, more readily available FPGA. Unfortunately, availability has remained a problem, with no end in sight, so we've made the difficult decision to also mark LimeSDR as end-of-life. Your action is required if you have an open order for LimeSDR.
Read the Full Update





--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: My Computer Drifts!

Simon Brown
 

So,

Installed Meinberg, running well. For my aging eyes the Client Monitor could do with some loving but it works and I'll never have to worry about time synchronisation again.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Conrad, PA5Y via groups.io <g0ruz@...>
Sent: 01 June 2022 18:45
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] My Computer Drifts!
 

Simon as suggested, use Meinberg NTP server and NTP server monitor, it is just what you need.

 

Regards

 

Conrad PA5Y

 

 

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Curt Faulk via groups.io
Sent: 01 June 2022 17:05
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] My Computer Drifts!

 

Simon, I agree with the suggestions for Meinberg. I have used it for a long time and it is just excellent.


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: My Computer Drifts!

jdow
 

Never is on PCs these days.

{o.o}

On 20220601 10:14:53, Siegfried Jackstien wrote:

THAT was a good one ... i bet that the main clock of the motherboard is not calculated from main power supply :-)

dg9bfc sigi

Am 01.06.2022 um 16:28 schrieb Uwe Volk:
Hi Simon,

I run a small ASUS NUC with an AMD 4700U inside. the time drifts by a few seconds during an 8 hour period!
Maybe the standard frequency of your main power supply is not very stable on 50 Hz. Check, if other machines have this deviation also or not.

Shirley there's a free program on the web i can use to sync with NTP?
I can recommend NetTime, very tiny, run on all Win OS incl. Win 11:
https://www.timesynctool.com/


73, Uwe












Re: My Computer Drifts!

jdow
 

That and typical floor sweepings for the computer's time reference can give a surprising size error. Very roughly speaking a 1ppm error is 0.1 seconds per day. A 50 ppm crystal is as bad as 4 seconds per day. So your little toy's oscillator is maybe "floor sweepings." But you can have a crystal set 50 ppm off and temperature takes it another 50 ppm, 9 seconds per day or 3 seconds per 8 hours.


{o.o}


On 20220601 09:11:49, Simon Brown wrote:

Hi,

It's AMD in a small NUC, I bet it's temperature related?

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Uwe Volk via groups.io <sdr19c@...>
Sent: 01 June 2022 15:28
To: Simon Brown <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] My Computer Drifts!
 
Hi Simon,

> I run a small ASUS NUC with an AMD 4700U inside. the time drifts by a few seconds during an 8 hour period!

Maybe the standard frequency of your main power supply is not very stable on 50 Hz. Check, if other machines have this deviation also or not.

> Shirley there's a free program on the web i can use to sync with NTP?

I can recommend NetTime, very tiny, run on all Win OS incl. Win 11:
https://www.timesynctool.com/


73, Uwe








--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: SDR's For Sale. Maybe Other Equipment, Antenna, ETC.

Andrea Dalbagno
 

Good morning John
I'm interested at the Wellbrook. How much does it cost? And may I ask where are you located?
Thanks in advance.
73
Andrea IN3IWZ 


Il gio 2 giu 2022, 02:54 John Bain <johnpbain@...> ha scritto:
Simon, First of all Sorry to Bother you and Sincerest   Apologies for contacting you out of the blue. Very Best Wishes and Very Best Regards Simon. I have used sdr console and think that its probably the best sdr software available right now. 
 I might be selling off a couple or possibly a few of my sdr's and wondered if its ok to do this on the group. I didn't want to just post without clearing it with you first. My posts will probably be moderated as I usually only read the posts and don't comment much about anything. I'm only a UK foundation license holder because I've never really felt the need for using any more power than the 10 watts I'm Allowed. I have been Licensed since 2007 along with my wife who did the exam with me. I've been a swl and kinda radio fanatic since about age 5 or 6 in the mid 1970's. I've mostly always used transceivers for my listening because I always found the filters to be better than the receivers that I could afford to buy or kits that I could build. Apologies for rambling on about myself in this message Simon, I didn't intend to do that but thought it would be slightly more polite to introduce myself before asking you about anything to do with your group 
I usually read anything from the group via email instead of the web version though only because I usually check email from the phone instead of the computer. 
 If it was ok with you to post about any of the radios or any other equipment that I would sell I'd be selling my Hermes Lite 2 bought in December 2021, an Absolutely fantastic wee receiver when used with your sdr console. My license conditions prevent me from using it for transmit but I have checked it out with the dummy load and it is all good on transmit, only tried on dummy load but I'm guessing fine with a real aerial. 
 I'd probably also be selling my afedri lan-iq, the one with the touch screen and digital encoder option fitted, its coverage is 0-1700MHz 2 bnc aerial inputs. I bought it about april from the original owner who bought it almost exactly a year ago from afedri. I can take pictures of any of the equipment if anybody wanted to see them. I also have an airspy HF+ dual port (not discovery) if anybody was interested in buying one of them, its only been used a few times since I've not got as much time as I used to have to play radio. I probably have a couple of other things that I'll be letting go in the near future Simon. I really do need to thin down the crop of radios, I'm running out of space, its a small shack. I've never actually sold anything online before, I'm usually the one that's buying, hi. My Wife sells online so the shipping of any of the equipment for sale won't be a problem hopefully.  Maybe a Wellbrook Loop as well barely used and need to get it down from the loft above the shack. I'm sure that its a 1530LN model serial number available if needed, it's probably the only shipping nighttime I have Simon.
 There's probably some more bits and pieces that I can't think of but no doubt will remember when the email is away. 
 Again Simon Sorry to Bother you and sincerest apologies for contacting you out of the blue. 
 Very Best Wishes and Very Best Regards to you and your Family Simon, 73 John. 
 
--
John Bain


Re: LimeSDR Mini 2.0 is Now Live!

Simon Brown
 

Ref Clock - looking at the image I see a teeny-tiny connector for a reference clock, that's good news. It's at the top of the underside image.



From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Simon Brown via groups.io <simon@...>
Sent: 02 June 2022 06:01
To: SDR-Radio <main@sdr-radio.groups.io>
Subject: [SDR-Radio] LimeSDR Mini 2.0 is Now Live!
 
Reborn.


From: Crowd Supply <no-reply@...>
Sent: 01 June 2022 20:39
To: Simon Brown <Simon@...>
Subject: LimeSDR Mini Update: LimeSDR Mini 2.0 is Now Live!
 
Crowd Supply
An update from the LimeSDR Mini team.
LimeSDR Mini 2.0 is Now Live!

The wait is over! We're excited to announce that the LimeSDR Mini 2.0 campaign is now live. Here are a few important details.
Read the Full Update


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.

--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


LimeSDR Mini 2.0 is Now Live!

Simon Brown
 

Reborn.


From: Crowd Supply <no-reply@...>
Sent: 01 June 2022 20:39
To: Simon Brown <Simon@...>
Subject: LimeSDR Mini Update: LimeSDR Mini 2.0 is Now Live!
 
Crowd Supply
An update from the LimeSDR Mini team.
LimeSDR Mini 2.0 is Now Live!

The wait is over! We're excited to announce that the LimeSDR Mini 2.0 campaign is now live. Here are a few important details.
Read the Full Update


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Fw: LimeSDR Update: End of Life Announcement

Simon Brown
 

We've all got to go sometime...


From: Crowd Supply <no-reply@...>
Sent: 01 June 2022 19:23
To: Simon Brown <Simon@...>
Subject: LimeSDR Update: End of Life Announcement
 
Crowd Supply
An update from the LimeSDR team.
End of Life Announcement

About three months ago, we announced LimeSDR Mini had transitioned to end-of-life status. At the time, we were hopeful that LimeSDR could remain in production because it uses a different, more readily available FPGA. Unfortunately, availability has remained a problem, with no end in sight, so we've made the difficult decision to also mark LimeSDR as end-of-life. Your action is required if you have an open order for LimeSDR.
Read the Full Update


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: My Computer Drifts!

Simon Brown
 

Graham,

Problem seems to be that my little NUC can drift quite a bit as it warms up due to change in CPU load. I've seen WSJT failing to decode due to the time offset, so Meinberg will solve this.

These NUCs are excellent, especially with the 12th generation Intel chips.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Graham (ZL1CE) via groups.io <grahamw@...>
Sent: 01 June 2022 21:00
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] My Computer Drifts!
 
Hi all

I have successfully used this method on XP, W7, W8 & W10 for many years.     Before the internet days (DOS, W3.1, 98 etc ) I used an early version  of Dimension 4.(which needed to be manually calibrated against time signals over several weeks) on my customers computers, but the newer versions of D4 no longer seem to play well with W10


Clock Synchronization

Synchronizing the clock of your PC is normally enabled by default except for networked computers that are domain members. Obviously, this synchronization is not possible for PCs that are not connected (whether permanently or not) to the Internet ...

To activate or check that this function is enabled, you must go to Control Panel | Regional Options, Date and Time | Change date and time and click the Internet Time tab.

Synchronization occurs every 604,800 seconds, or every 7 days. You can increase or decrease this time by editing the registry:

Go to the key: HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ W32Time \ TimeProviders \ NtpClient

Locate and change the value: SpecialPollInterval

Assign a value in seconds. e.g. 3600 will give you an update interval of 60 minutes

Restart the PC for the changes to take effect. (Source: MSKB Q297227)
--

73 Graham
ZL1CE
QTH: RF73jc

--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: SDR's For Sale. Maybe Other Equipment, Antenna, ETC.

mathews ember
 

I would be interested in that Hermes lite.
How much you asking for it


Re: My Computer Drifts!

David J Taylor
 

On 01/06/2022 18:55, BobS via groups.io wrote:
Rather than using a third-party program, which you admittedly won't really know
what it's doing, *why not roll your own?* It's downright trivial.
Why? See: https://www.satsignal.eu/ntp/setup.html#why

NTP does a lot more than simply forcing your system clock to be correct in a
once-off operation. In any case you don't /need/ to roll your own - the work
is already done for you.

73,
David GM8ARV
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


SDR's For Sale. Maybe Other Equipment, Antenna, ETC.

John
 

Simon, First of all Sorry to Bother you and Sincerest   Apologies for contacting you out of the blue. Very Best Wishes and Very Best Regards Simon. I have used sdr console and think that its probably the best sdr software available right now. 
 I might be selling off a couple or possibly a few of my sdr's and wondered if its ok to do this on the group. I didn't want to just post without clearing it with you first. My posts will probably be moderated as I usually only read the posts and don't comment much about anything. I'm only a UK foundation license holder because I've never really felt the need for using any more power than the 10 watts I'm Allowed. I have been Licensed since 2007 along with my wife who did the exam with me. I've been a swl and kinda radio fanatic since about age 5 or 6 in the mid 1970's. I've mostly always used transceivers for my listening because I always found the filters to be better than the receivers that I could afford to buy or kits that I could build. Apologies for rambling on about myself in this message Simon, I didn't intend to do that but thought it would be slightly more polite to introduce myself before asking you about anything to do with your group 
I usually read anything from the group via email instead of the web version though only because I usually check email from the phone instead of the computer. 
 If it was ok with you to post about any of the radios or any other equipment that I would sell I'd be selling my Hermes Lite 2 bought in December 2021, an Absolutely fantastic wee receiver when used with your sdr console. My license conditions prevent me from using it for transmit but I have checked it out with the dummy load and it is all good on transmit, only tried on dummy load but I'm guessing fine with a real aerial. 
 I'd probably also be selling my afedri lan-iq, the one with the touch screen and digital encoder option fitted, its coverage is 0-1700MHz 2 bnc aerial inputs. I bought it about april from the original owner who bought it almost exactly a year ago from afedri. I can take pictures of any of the equipment if anybody wanted to see them. I also have an airspy HF+ dual port (not discovery) if anybody was interested in buying one of them, its only been used a few times since I've not got as much time as I used to have to play radio. I probably have a couple of other things that I'll be letting go in the near future Simon. I really do need to thin down the crop of radios, I'm running out of space, its a small shack. I've never actually sold anything online before, I'm usually the one that's buying, hi. My Wife sells online so the shipping of any of the equipment for sale won't be a problem hopefully.  Maybe a Wellbrook Loop as well barely used and need to get it down from the loft above the shack. I'm sure that its a 1530LN model serial number available if needed, it's probably the only shipping nighttime I have Simon.
 There's probably some more bits and pieces that I can't think of but no doubt will remember when the email is away. 
 Again Simon Sorry to Bother you and sincerest apologies for contacting you out of the blue. 
 Very Best Wishes and Very Best Regards to you and your Family Simon, 73 John. 
 
--
John Bain


Re: My Computer Drifts!

Mike Bott
 

On 6/1/22 16:00, Graham (ZL1CE) wrote:
Hi all

I have successfully used this method on XP, W7, W8 & W10 for many years.     Before the internet days (DOS, W3.1, 98 etc ) I used an early version  of Dimension 4.(which needed to be manually calibrated against time signals over several weeks) on my customers computers, but the newer versions of D4 no longer seem to play well with W10
<snip>

I've used Dimension 4 successfully for 4+ years or so on two Win10 systems and one Win8.1 system without any issues at all. It does hourly time checks in the background ... like clockwork.  :)

--
Mike


Re: My Computer Drifts!

Michael Boudreaux
 

Hi Simon : I found Meinberg works extremely well. easy to implement. Turn off windows time as well! Now I use GPS dongles taped to a window with a usb expansion cable . They are so cheap I have one on each of my 6 computers! They are less than $ 20 Australian. I might even have a new spare laying around in the special drawer! I will have a look today. cheers Mike vk4xz it least I could do for all your help! 73


Re: My Computer Drifts!

Graham (ZL1CE)
 

Hi all

I have successfully used this method on XP, W7, W8 & W10 for many years.     Before the internet days (DOS, W3.1, 98 etc ) I used an early version  of Dimension 4.(which needed to be manually calibrated against time signals over several weeks) on my customers computers, but the newer versions of D4 no longer seem to play well with W10


Clock Synchronization

Synchronizing the clock of your PC is normally enabled by default except for networked computers that are domain members. Obviously, this synchronization is not possible for PCs that are not connected (whether permanently or not) to the Internet ...

To activate or check that this function is enabled, you must go to Control Panel | Regional Options, Date and Time | Change date and time and click the Internet Time tab.

Synchronization occurs every 604,800 seconds, or every 7 days. You can increase or decrease this time by editing the registry:

Go to the key: HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ W32Time \ TimeProviders \ NtpClient

Locate and change the value: SpecialPollInterval

Assign a value in seconds. e.g. 3600 will give you an update interval of 60 minutes

Restart the PC for the changes to take effect. (Source: MSKB Q297227)
--

73 Graham
ZL1CE
QTH: RF73jc


Re: My Computer Drifts!

Simon Brown
 

Hi,

The NUC runs W11. Meinberg is exactly what's needed as due to heat the system drifts badly!

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of John via groups.io <jphutch60bj@...>
Sent: 01 June 2022 19:51
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] My Computer Drifts!
 

Simon -

  if you are running windows, what version of windows are you running?


  Back in the days of PC-XT there was freeware to sync you computers clock to WWV or Canadian Time clock


  I did not think Time Sync was an issue with windows7 onward.


Hutch



Windows includes a time synchronization scheduler to synchronize your clock automatically, located on the Internet Time tab in the Date & Time Settings. The default interval for this process is one week (which is 604,800 seconds).


This may help:

https://www.wikihow.com/Change-the-Time-Synchronization-Interval-in-Windows



On 6/1/2022 9:05 AM, Simon Brown wrote:

Well,

I run a small ASUS NUC with an AMD 4700U inside. the time drifts by a few seconds during an 8 hour period!

Shirley there's a free program on the web i can use to sync with NTP?


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.

--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: My Computer Drifts!

John
 

Simon -

  if you are running windows, what version of windows are you running?


  Back in the days of PC-XT there was freeware to sync you computers clock to WWV or Canadian Time clock


  I did not think Time Sync was an issue with windows7 onward.


Hutch



Windows includes a time synchronization scheduler to synchronize your clock automatically, located on the Internet Time tab in the Date & Time Settings. The default interval for this process is one week (which is 604,800 seconds).


This may help:

https://www.wikihow.com/Change-the-Time-Synchronization-Interval-in-Windows



On 6/1/2022 9:05 AM, Simon Brown wrote:

Well,

I run a small ASUS NUC with an AMD 4700U inside. the time drifts by a few seconds during an 8 hour period!

Shirley there's a free program on the web i can use to sync with NTP?


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: My Computer Drifts!

Les
 

One I've been using for quite some time, rsNTP written by DL4YHF, can be found on
http://www.qsl.net/dl4yhf/rsNTP/rsNTP.htm

Les


Re: My Computer Drifts!

Conrad, PA5Y
 

I understand that Simon has a garden among his many other interests and is familiar with the concept of a ‘busman’s holiday’.

Meinberg is clear about what it is doing.  Meinberg has mechanisms for dealing with latency. It is a professional tool. Why re-invent the wheel?

 

Regards

 

Conrad PA5Y

 

 

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of BobS via groups.io
Sent: 01 June 2022 19:56
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] My Computer Drifts!

 

Rather than using a third-party program, which you admittedly won't really know what it's doing, why not roll your own? It's downright trivial. Using a USB-attached GPS is arguably even more accurate than dealing with the latency of pulling the time from an Internet server, albeit we're only talking milliseconds. All you really need to do is parse one line. Decoding NTP is only slightly more difficult as the data is binary packed in a struct. What I have here is just a quick 'n dirty read of a USB GPS over it's serial port.

I've run this PowerShell script against both the VK-162 and VK-172 variants of GPS USB devices, both of which can be found on Amazon for under 25 GBP. (Sadly, they're like half the price on the US version of Amazon.) The script is very basic in that it just reads the time three times then exists. I found that here's a bit of lag in the PowerShell interpreter. Doing it three times removes the initial latency of the interpreter. Again... it's just a quick solution. It can be put into the windows-scheduler to then run every five minutes.

Having a USB GPS device is nice too when you're at a park playing with radios and you don't have Internet access or don't want/need to use your phone as a hotspot. But the real reason is that they're fun toys.

Oh... MULTIPSK has a clock/GPS program too that's quite good and free.

The only downside is that the program must have admin privs to set the system time.

One more thing - if you are using any external GPS for time sync, locally or via NTP, you may wish to consider disabling the Windows Time Service. Otherwise you'll have a case of dueling banjos.

Bob, W4RLS

#Requires -RunAsAdministrator $availableComPorts = [System.IO.Ports.SerialPort]::getportnames() Write-Host 'Available COM ports:' $availableComPorts $counter = 0 $maxLoop = 3 # Choose the COM port and open it. $comPort = "COM7" Write-Host 'Connecting to GPS on COM port' $comPort $port= new-Object System.IO.Ports.SerialPort $comPort,4800,None,8,one $port.Open() do { $line = $port.ReadLine() # Look for an NMEA 0183 sentence that starts with $GPGGA. if ($line.StartsWith('$GPGGA')) { $counter = $counter + 1 # Parse the sentence. $parts = $line.Split(',') $hour = $parts[1].Substring(0, 2) $minute = $parts[1].Substring(2, 2) $second = $parts[1].Substring(4, 2) $gpsDate = (Get-Date).ToUniversalTime().Date.AddHours($hour).AddMinutes($minute).AddSeconds($second) # To set the date, the program needs to be run as an administrator. Set-Date -Date $gpsDate.ToLocalTime() Write-Host 'Setting local clock to: ' $gpsDate } } while ($port.IsOpen -and $counter -lt $maxLoop) $port.Close() Write-Host 'Connection to GPS closed.'


Re: My Computer Drifts!

BobS
 

Sorry for the formatting of the PowerShell script. It looked just fine in preview with the appropropirate markdown code.

2261 - 2280 of 68684