Date   

Re: CTCSS decoder

Radio Guy
 

If CTCSS is possible then DCS would be useful too.


On Wed, Jul 8, 2020 at 2:47 AM Simon Brown <simon@...> wrote:
Hi,

One thing I could do is to display the CTCSS frequency when receiving in NFM. This is not an exact science but it's close. I actually have this value inside the DSP but don't display it anywhere.

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

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of David L. Wilson via groups.io
Sent: 06 July 2020 14:31
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] CTCSS decoder

I see the problem in my link...it was in the link twice back to back.
Try https://comtekk.com/multi-decoder.htm
You are correct, it is not free and runs in $50-$100 range but was the best I could find when I searched for similar and I use it.
--
David L. Wilson










--

-----------
Ken


Re: VIDEO PLAYBACK V3.0.25

Siegfried Jackstien
 

Hmmm... Should the name be flipped upside down... Or in reversed order?!?... If i remember right they also drive on wrong side of the road in some countries
Sorry could not resist
Stay safe... Stay on the radio 
Dg9bfc sigi 

Am 07.10.2020 18:47 schrieb Radioman ZeroZero <radioman@...>:

Weirdly the file name is not flipped.
--
Thanks Steve M0ZEH


Re: VIDEO PLAYBACK V3.0.25

Radioman ZeroZero
 

Weirdly the file name is not flipped.
--
Thanks Steve M0ZEH


Re: Interference

Gisle Vanem
 
Edited

Anyway, I really want to determine what is causing this interference.

A rather old Switch-mode power-supply since the switching frequency is so low.

I'm more lucky I guess since it's mostly above 17 MHz: [QRM at 17 MHz]

With a neighbour with a SMP of 310 kHz. Which is very common for mobile-phone chargers etc.
But also some SMP with lower switching frequencies in between. Nice!


Re: Problem with renaming V3 servers

Simon Brown
 

Thanks,

 

Fixed!

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Finndx
Sent: 07 October 2020 10:25
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Problem with renaming V3 servers

 

Attention Simon!

https://sdr-radio.groups.io/g/main/message/56085

I have this problem still with SDRC v3.0.25
Restarting SDRC resets already changed server definition names.

Could you check this?

Thanks


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


Re: Interference

Mag loop Simon
 

Thats a typical smpsu..could be from anything..phone charger, led floodlight etc..

Try nulling out with the loop..
If that does not work buy/ make a phasing noise canceller..or move house to ship out at sea..

Good luck and welcome to 2020.


Re: Problem with renaming V3 servers

Finndx
 

Attention Simon!

https://sdr-radio.groups.io/g/main/message/56085

I have this problem still with SDRC v3.0.25
Restarting SDRC resets already changed server definition names.

Could you check this?

Thanks


Interference

George Stein - NJ3H
 

This was also posted on the Console Forum as well.


Greetings,
 
I could sure use some help trying to identify as shown in the attached pictures.  This interference occurs in the 2 mhz, 7-10 mhz, and 16-20 mhz bands and to a minor amount elsewhere on HF.
 
I have had this problem before.  I have walked the neighborhood with a portable Sony SW receiver.  On house (3 away from me 250 feet) seems to have interference when I am in their yard.  The young guy basically refuses to help out.  I have talked to him in the past very nicely.  He won't even answer the door.
 
One picture is from SDR Console using my Elad S2.  The other picture is using the Perseus.  my antenna is a 1-meter diameter Wellbrook loop in my back yard.
 
I have shut down the power to the house at the panel board and used a powerpack to provide power to the necessary components. I still have the interference as indicated on the attached pictures.  I do have ferrites on the antenna cables and power cables.
 
Anyway, I really want to determine what is causing this interference.
 
Regards,
George, NJ3H
Redmond, Oregon USA


Re: Support for R-666 Dragonfly SDR - Update

John Aldridge
 

Ah, and the RSP2 only sends 16 Msps at 8MHz? That does sound as if it could well account for a lot of the difference. Thanks!

John

On 10/4/2020 5:21 PM, Simon Brown wrote:
Well,
Some chips are compromised due to a security design issue (see below), I
know my i7-4770 is, and they now are less powerful than as designed. Anyway
the RX-666/888 always processes 64 Msps from the ADC (that's 64 million real
samples/second) and that requires a lot of grunt. Add in the fact that the
DirectX driver is also using the CPU as the integrated graphics can't
provide enough and you kind of see what's happening.
I'm always tuning the software.
https://en.wikipedia.org/wiki/Spectre_(security_vulnerability) and others
like Meltdown. The chips run newer Microcode and aren't quite as fast as
they were, I notice this myself.
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
Aldridge
Sent: 04 October 2020 17:01
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Support for R-666 Dragonfly SDR - Update
On 10/4/2020 7:06 AM, Bob Dengler wrote:
At 10/3/2020 08:54 AM, you wrote:

An i5 with motherboard graphics simply can't handle more than 1MHz
bandwidth. To utilise the 8MHz bandwidth the radio offers requires some
serious computing power. Consider the PC as part of the Cost of Ownership.
On this i5, I could select greater bandwidths, but 2MHz stuttered like
crazy, and greater bandwidths just locked up the PC.

My RX-888 just arrived today. Had to DL the drivers (actually the whole
SDK, which includes the drivers for several OSs) from the Cypress website,
as the Win10 drivers don't work on Win8.1. I'm having similar experience
with my i7-4770/integrated graphics system: works well up to 4 MHz, though
stutters a little, but 8 MHz lags badly & is unusable.
Curious: my i7-3770 (integrated graphics only) handles an SDRplay RSP2 at 8
MHz without breaking sweat -- about 20% CPU utilisation. I wonder why the
RX-888 demands more resources.
John


Re: antenna splitter ?

Allan Isaacs
 

I agree Ulli. Home brew construction is becoming a dying art.

I really enjoy building things but you do need half decent test equipment to see how your stuff performs.

http://www.radiomuseum.co.uk/dc.html

http://www.radiomuseum.co.uk/SDR.html#anchor5693

http://www.radiomuseum.co.uk/converter.html#anchor19162

These days you don’t need a slide rule or a calculator to design a coil or a filter because everything you need is on the Net.

73 Allan G3PIY

 


From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of ON5KQ
Sent: 07 October 2020 07:54
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] antenna splitter ?

 

Splitter:
Why bother with e-bay and purchased units? As radio amateurs be should "MAKE' rather than being a mainstream consumer.
How ?
Here is one of the "MAKERS' sharing his experience with splitters (and many other very useful stuff) for radio amateurs.
https://ka7oei.blogspot.com/2019/11/homebrew-construction-of-2-and-4-port.html
https://ka7oei.blogspot.com/2019/12/using-tv-type-75-ohm-splitters-and-taps.html

There is many information in his blog useful for hams. So there are sources, from which you can learn to 'MAKE' ...

Ulli, ON5KQ

_._,_._,_

 


Re: antenna splitter ?

ON5KQ
 

Splitter:
Why bother with e-bay and purchased units? As radio amateurs be should "MAKE' rather than being a mainstream consumer.
How ?
Here is one of the "MAKERS' sharing his experience with splitters (and many other very useful stuff) for radio amateurs.
https://ka7oei.blogspot.com/2019/11/homebrew-construction-of-2-and-4-port.html
https://ka7oei.blogspot.com/2019/12/using-tv-type-75-ohm-splitters-and-taps.html

There is many information in his blog useful for hams. So there are sources, from which you can learn to 'MAKE' ...

Ulli, ON5KQ


Re: #Future Higher "Min elev" for satellite passes #future

jdow
 

And the next request would be 15 degrees off to the South and 30 degrees to the North and more numbers for other cardinal directions....

{O,o}   <- Joanne lives where North is almost mythological. The North star barely comes over the mountain.

On 20201006 02:32:34, Max wrote:
No, I don't think so Al. I think Phil is asking to be able to optionally set the minimum elevation to a value higher than 20 Deg? Not remove the ability to set it lower than 80 Deg.

73

Max


On Mon, Oct 5, 2020 at 09:48 PM, Al Massaro wrote:
OK, if I am reading this correctly we are talking about denying other folks who like to use lower elevations? Why? I for one have done well with some low elevation passes that surprised even me. I would say make it selectable, don't fix something that is not broken for everyone.
AL M
KF5SMH


Re: #Future Higher "Min elev" for satellite passes #future

Max
 

No, I don't think so Al. I think Phil is asking to be able to optionally set the minimum elevation to a value higher than 20 Deg? Not remove the ability to set it lower than 80 Deg.

73

Max


On Mon, Oct 5, 2020 at 09:48 PM, Al Massaro wrote:
OK, if I am reading this correctly we are talking about denying other folks who like to use lower elevations? Why? I for one have done well with some low elevation passes that surprised even me. I would say make it selectable, don't fix something that is not broken for everyone.
AL M
KF5SMH


Re: Support for R-666 Dragonfly SDR - Update

Simon Brown
 

😊

 

I leave distributed programming as an exercise for the user.

 

There's no battle - a decent PC will work OK, I'm waiting for a new 30MHz SDR being developed by a well-known SDR entity, this will work well. Hoping for a prototype before the end of 2020. So far it's looking good.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of WH6EPS via groups.io
Sent: 06 October 2020 03:27
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] Support for R-666 Dragonfly SDR - Update

 

Aloha

It looks like these new SDR’s are the future and may be a battle between the low end PC and the bandwidth needed. Is there a way to leverage any type of multi PC computing on the home network. I have several low end PC’s in the house it would be nice if SDRC could distribute the work load. Just an idea.

Thanks

Gary

WH6EPS

> On Oct 4, 2020, at 8:05 AM, David J Taylor via groups.io <david-taylor@...> wrote:

>

> Well,

>

> Some chips are compromised due to a security design issue (see below),

> I know my i7-4770 is, and they now are less powerful than as designed.

> Anyway the RX-666/888 always processes 64 Msps from the ADC (that's 64

> million real

> samples/second) and that requires a lot of grunt. Add in the fact that

> the DirectX driver is also using the CPU as the integrated graphics

> can't provide enough and you kind of see what's happening.

>

> I'm always tuning the software.

>

> https://en.wikipedia.org/wiki/Spectre_(security_vulnerability) and

> others like Meltdown. The chips run newer Microcode and aren't quite

> as fast as they were, I notice this myself.

>

> Simon Brown, G4ELI

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

> =======================================================

>

> You can always speed those chips back up again....

>

> https://www.grc.com/inspectre.htm

>

> Tried it here and it does help.

>

> 73,

> David GM8ARV

> --

> SatSignal Software - Quality software for you

> Web: https://www.satsignal.eu

> Email: david-taylor@...

> Twitter: @gm8arv

>

>

>

>

>

 

 

 

 

 


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


Re: Support for R-666 Dragonfly SDR - Update

WH6EPS
 

Aloha
It looks like these new SDR’s are the future and may be a battle between the low end PC and the bandwidth needed. Is there a way to leverage any type of multi PC computing on the home network. I have several low end PC’s in the house it would be nice if SDRC could distribute the work load. Just an idea.
Thanks
Gary
WH6EPS

On Oct 4, 2020, at 8:05 AM, David J Taylor via groups.io <david-taylor=blueyonder.co.uk@groups.io> wrote:

Well,

Some chips are compromised due to a security design issue (see below), I
know my i7-4770 is, and they now are less powerful than as designed. Anyway
the RX-666/888 always processes 64 Msps from the ADC (that's 64 million real
samples/second) and that requires a lot of grunt. Add in the fact that the
DirectX driver is also using the CPU as the integrated graphics can't
provide enough and you kind of see what's happening.

I'm always tuning the software.

https://en.wikipedia.org/wiki/Spectre_(security_vulnerability) and others
like Meltdown. The chips run newer Microcode and aren't quite as fast as
they were, I notice this myself.

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

You can always speed those chips back up again....

https://www.grc.com/inspectre.htm

Tried it here and it does help.

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





Re: VIDEO PLAYBACK V3.0.25

Dennis Matzen
 

Jim, did you setup you computer or did someone else do it for you. I have one possibility. Your monitor is mounted upside down (rotated 180 degrees) and Windows have been setup to flip the display so it is correct. I just tried this with my system. I flipped my display 180 (now it is upside down), started SDR Console and made a recording. When I played it back (my screen is still flipped) it displayed correctly. So with the display flipped 180 in the windows display settings the playback of the recorded video is 180 degrees off.
--
Dennis
KA6FUB


Re: VIDEO PLAYBACK V3.0.25

Jim Berry
 

Yes i am down under, however here is the evidence 
The playback screen is upside down where the main screen is the correct way arround



Regards
Jim B VK2QA



Re: #Future Higher "Min elev" for satellite passes #future

Siegfried Jackstien
 

user setable border starting at MINUS 10 degrees (yes below horizon) ... reason is then tracking of frequency starts BEFORE the sat is there

min elevation set HIGHER is on the user end (if he does not receive well below 10 degrees ABOVE horizon he can surpress those passes and set min elevation to 15 or 20) ..

so i second that ... make it selectable by user with "default" setting to 0 degrees (no passes lost)

greetz sigi dg9bfc

Am 05.10.2020 um 20:48 schrieb Al Massaro:

OK, if I am reading this correctly we are talking about denying other folks who like to use lower elevations? Why? I for one have done well with some low elevation passes that surprised even me. I would say make it selectable, don't fix something that is not broken for everyone.
AL M
KF5SMH


Re: #Future Higher "Min elev" for satellite passes #future

Al Massaro KF5SMH
 

OK, if I am reading this correctly we are talking about denying other folks who like to use lower elevations? Why? I for one have done well with some low elevation passes that surprised even me. I would say make it selectable, don't fix something that is not broken for everyone.
AL M
KF5SMH


Re: RX888 Sellers on eBay

Jos Mols
 

Hi, ordered via topskyrc. Got in a few weeks, no tax
So Happy with this seller
Jos

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