Date   

Re: 3.0.28 Release

Larry Dodd
 

Yes AI. It is amazing technology and will revolutionize many aspects of Radio reception. Never before were there absolute ways to eliminate noise. Understand CraySDR’s incorporate AI noise reduction now but I don’t have $75k to get one. 
Larry

On Jul 1, 2021, at 8:55 AM, Simon Brown <simon@...> wrote:



If you follow the advances made by NVIDIA then all consoles are falling way behind current state of the art.

 

AI in 2022 I hope…

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Larry Dodd
Sent: 01 July 2021 13:40
To: main@sdr-radio.groups.io
Cc: SDR-Radio@groups.io
Subject: Re: [SDR-Radio] 3.0.28 Release

 

Thanks to Simon for keeping his wonderful software up to date. 

Larry, K4LED 



On Jul 1, 2021, at 8:36 AM, Simon Brown <simon@...> wrote:



SDR Console 3.0.28 is now available: https://forum.sdr-radio.com:4499/viewtopic.php?f=66&t=1200

 

Version 3.1 will be released on August 1st, 2021

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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Re: Severe storms at KA1GJU Superstations!

Kriss Kliegle KA1GJU
 

All servers are back on line. Please email if there are any problems.

73 Kriss KA1GJU


Re: 3.0.28 Release

Simon Brown
 

If you follow the advances made by NVIDIA then all consoles are falling way behind current state of the art.

 

AI in 2022 I hope…

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Larry Dodd
Sent: 01 July 2021 13:40
To: main@sdr-radio.groups.io
Cc: SDR-Radio@groups.io
Subject: Re: [SDR-Radio] 3.0.28 Release

 

Thanks to Simon for keeping his wonderful software up to date. 

Larry, K4LED 



On Jul 1, 2021, at 8:36 AM, Simon Brown <simon@...> wrote:



SDR Console 3.0.28 is now available: https://forum.sdr-radio.com:4499/viewtopic.php?f=66&t=1200

 

Version 3.1 will be released on August 1st, 2021

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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Re: 3.0.28 Release

Larry Dodd
 

Thanks to Simon for keeping his wonderful software up to date. 
Larry, K4LED 

On Jul 1, 2021, at 8:36 AM, Simon Brown <simon@...> wrote:



SDR Console 3.0.28 is now available: https://forum.sdr-radio.com:4499/viewtopic.php?f=66&t=1200

 

Version 3.1 will be released on August 1st, 2021

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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3.0.28 Release

Simon Brown
 

SDR Console 3.0.28 is now available: https://forum.sdr-radio.com:4499/viewtopic.php?f=66&t=1200

 

Version 3.1 will be released on August 1st, 2021

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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When your antenna on your server is too good (or you take QRM to the extreme)...

Kriss Kliegle KA1GJU
 

One hears the distant electric cattle fences (1 sec pulses) just as loud as the one that is 4' away from the 9:1 unun feeding Superstation #2.
I just walked the line on mine and found a few burned blades of grass (that's all it takes) after our big storms yesterday. No tree branches down onto the fence, despite the strong winds. The
streets looked like a hurricane passed through with all the limbs and branches down!

I can't tell where my fence QRM is, can you?
Hint... Screen shot is first with my fence off, (lower ~50% of waterfall), then I turned mine on (upper ~50% of waterfall).

One more server to reset and KA1GJU fleet of server will be back online!

73 Kriss KA1GJU
It's not a hobby, it's an obsession!


Re: Severe storms at KA1GJU Superstations!

Michael.2E0IHW
 

Thanks for the reply, Max. You confirm what I assumed.
We only have one fibre option : Airband.  They "plan"  to
connect us tomorrow... We will keep BT phone and VDSL
in parallel for a  while - until we are sure AB fibre is reliable.
We are exposed to  high winds, so I hope the overhead fibre knows that!

Michael

On 01/07/2021 09:28, Max wrote:

On Wed, Jun 30, 2021 at 11:30 PM, Michael.2E0IHW wrote:
Also:  unplugging the psu will disconnect  the fibre link to the ISP.
Will there be delay and/or reduced download data rate as the ISP
resyncs on reconnection?

Hi Michael

As far as I know the whole "re-syncing" thing (I think you are referring to DLM or Dynamic Line Management as it's known here in the UK) only ever related to copper circuits and particularly those supplied by BT. Not all ISPs used it (TalkTalk for example I believe did not - I had a TalkTalk ADSL line at one point via Andrews and Arnold) and I never saw this behaviour.

Anyway, I digress. It only applies to ADSL (and VDSL - fibre to cabinet). No such equivalent exists or indeed is needed on a full fibre line. It will either work at full rate or zero i.e. usually a break in the fibre, as we did have once due to fallen tree on the lines. I have full fibre and it's either on (160 MB/s for me) or it's off. Regarding cables, certainly if you do request to retain your "normal" phone line, they install a fibre cable that also contains a copper circuit. I'm not 100% sure if mine does or not because we never requested to keep the copper (we use VOIP). I don't think it does because I think the "dual" cable is figure 8 with copper running down the side and ours is not. Although BT Open Reach who came to connect the service did not take away the old copper lines despite me asking them to....... "not our job.... different department"....... typical!

73

Max




Re: Severe storms at KA1GJU Superstations!

Max
 

On Wed, Jun 30, 2021 at 11:30 PM, Michael.2E0IHW wrote:
Also:  unplugging the psu will disconnect  the fibre link to the ISP.
Will there be delay and/or reduced download data rate as the ISP
resyncs on reconnection?

Michael UK

Hi Michael

As far as I know the whole "re-syncing" thing (I think you are referring to DLM or Dynamic Line Management as it's known here in the UK) only ever related to copper circuits and particularly those supplied by BT. Not all ISPs used it (TalkTalk for example I believe did not - I had a TalkTalk ADSL line at one point via Andrews and Arnold) and I never saw this behaviour.

Anyway, I digress. It only applies to ADSL (and VDSL - fibre to cabinet). No such equivalent exists or indeed is needed on a full fibre line. It will either work at full rate or zero i.e. usually a break in the fibre, as we did have once due to fallen tree on the lines. I have full fibre and it's either on (160 MB/s for me) or it's off. Regarding cables, certainly if you do request to retain your "normal" phone line, they install a fibre cable that also contains a copper circuit. I'm not 100% sure if mine does or not because we never requested to keep the copper (we use VOIP). I don't think it does because I think the "dual" cable is figure 8 with copper running down the side and ours is not. Although BT Open Reach who came to connect the service did not take away the old copper lines despite me asking them to....... "not our job.... different department"....... typical!

73

Max


Re: 116 dB SNR off the back of the 2m beam!

Simon Brown
 

No,

 

Not yet.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Tom Frobase
Sent: 30 June 2021 23:03
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] 116 dB SNR off the back of the 2m beam!

 

Simon,

 

Did Elad ever give an explanation on the high gain in my unit? … Tom, N3LLL 

 

On Wed, Jun 30, 2021 at 11:20 AM Simon Brown <simon@...> wrote:

All,

 

As per the title, a neighbour 5 miles (8 km) away off the back of my 2m beam. The FDM DUO + Q5 Signal transverter still holding up.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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Re: FDM-S3 - more bandwidth options?

jdow
 

$1k for a pair of 19 Megabyte drives and an S100 controller was a bargain worth standing in line for. It was only a two hour wait.... It served me wall several years.

{^_-}

On 20210630 08:13:37, Gedas wrote:

Jim, you made me chuckle this AM.....reminds me of when I only had to pay an extra $400 to upgrade my TRS-80 IV from 32k RAM to 64k RAM.....wow what a great deal that was.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com (under repair)
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 6/30/2021 2:07 AM, Jim Smith G0OFE wrote:

I'm sure he meant GB ! I put 32KB the other day in a conversation when I ment 32GB. Put myself back to the early 80s there for a moment.....

================================
Need help with SDR Console? If you have a problem:
Go to https://www.sdr-radio.com/support
Please follow instructions in that link.
===================================
Jim, Bournemouth, Dorset. IO90BR.
Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers
8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF


On 29/06/2021 17:57, Simon Brown wrote:

16 MB is not enough!

 

8 GB is OK, 16 GB probably better. 32 GB not needed.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of shaftan@...
Sent: 29 June 2021 17:59
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] FDM-S3 - more bandwidth options?

 

How much memory do I need to run 24 MHz?  16 Meg or do I need 32?


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Re: SABR Micro, DAB+, 3D

jdow
 

Might work for Simon. For me the FM Yagi is needed because I am just a bit into the shadows of other mountains on my path to the KUSC transmitter (Mt. Wilson). Up above the non-functional chimney and fixed aim. Rotator mucks up the other stuff such as my master GPS antenna and the disused for 15 years now NTSC antenna I should in theory pull down. But, I plead "over 3/4" and I don't like ladders and sloped roofs anymore.

{^_^}

On 20210630 07:04:33, Siegfried Jackstien wrote:

not on a rotator?? fixed on the chimney??

you should make it turnable (put ontop the other yagi) ... or replace it with a bigger longer one only for the dab area (and also on a rotator)

i guess you should get more from it if you can turn it

greetz sigi

Am 30.06.2021 um 14:30 schrieb Simon Brown:

Hi,

 

The antenna is the smaller log periodic.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 13:04
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

only 8km away ?? then you do not need a big antenna like your lopper (but seems to be a good wideband solution)

a paperclip poked in an rtl dongle should work (for your local receive)

for dab"dx" you need a good vhf yagi for around 200 megs but you sure know that

... while talking about antennas ... is your feed mounted ?!? (pulling your leg a bit)

greetz sigi

Am 30.06.2021 um 13:44 schrieb Simon Brown:

Probably I’ll develop as a plug-in as I have the radio interface available. Once working I could then make it a standalone program but that’s quite a lot of work.

 

One reason for DAB+ is I then have the classes available for future work, also I can listen to Jazz FM (UK) and also play DAB+ when we get good Tropo.

 

Currently using a nice 100 to 600MHz log periodic, am only ~8 km from the transmitter.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

could you include that in console?? or will it be an extra app like qt dab?!?

Am 30.06.2021 um 13:29 schrieb Simon Brown:

Ah,

 

QT-DAB does work, drives the Airspy correctly. My birthday present from me to me in October will be my own DAB+ receiver app 😊 .

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:16
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

look for qt dab ... soft from jan

https://github.com/JvanKatwijk/qt-dab

lots of hardware included (rtl dongle, sdrplay, lime, pluto etc etc) ... he even works on receive via dab and retransmit on analog fm stereo (if you use a pluto) ... then you can receive your favourite dab station on any normal fm radio in your house (retransmitting not finished yet)

jan is now on holiday but will be back in a few weeks (mid of july?!?)

greetz sigi dg9bfc

Am 30.06.2021 um 10:18 schrieb Simon Brown:

I’m just running the Windows kit, haven’t built it or even looked at the code.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 30 June 2021 07:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

[Edited Message Follows]

On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:

Welle.io is not bad but uses a lot of CPU and I don’t think it drives my Airspy R2 correctly.

It depends. If it is built to use FFTW, then yes. The CPU-load in my case is around 17%.
But if I build Welle-IO using Kiss-FFT and compiled using fast-calls (option -Gr), then the CPU drops to only 10%.

Edit: the Airspy problem is proably related to how Welle-IO handles SoapySDR. Not very good IMHO.


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Re: SABR Micro, DAB+, 3D

jdow
 

How do they arrange that. Generic APIs embodied in .h files are as patentable or copyrightable as phone books, that is not at all. I feeds it baseband it spits out audio I don't know how I just works. On the other paw, I am with you. And if AAC patent goes into the pooper hole in October that's not too long a wait.

{^_^}

On 20210630 06:43:52, Simon Brown wrote:

Hi,

 

When it comes to licencing I prefer to be squeaky clean. AAC patents lapse in ~ 6 years in Europe I think. I have a $1k up-front cost, then $1 / user. I doubt there would be enough interest to cover the $1k but first I have to write the DAB code.

 

As for Audacity and other DAB+ programs, just exposing the AAC interface is a sin, so everyone who ships and/or just hosts a DAB+ plugin is liable for AAC licence fees. The fact that you have to grab a AAC plugin from somewhere dodgy is immaterial.

 

There are a couple of small companies which examine software such as mine looking for infringements, I own my own house and plan to keep it that way 😊 .

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of BobS via groups.io
Sent: 30 June 2021 14:25
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

While dealing with AAC licensing would be tedious, having it as a plug-in also means that you don't have to worry about licensing DAB/DAB+ to users for whom it's useless, like those who in the United States of America and Canada.

From my perspective, having the converse (decoding IBOC) would be great to have in SDR Console. But that too is protected by patents and licensing, and you'd either have to work from WAV files or take a working vacation to North America. When I want to listen to HD-Radio (the not-accurate, but marketing name), I just use the NRSC5 software. I would guess it too violates the patents and licensing, but it's user base is most likely so small that it goes under-the-radar.

Or you could have a technically legal, but slimy solution like Audacity does for MP3 and AAC. They link to plug-ins that are on a server that's located in Brazil, which doesn't honor patent law.

Nonetheless, that's a cool long periodic antenna!

Bob, W4RLS


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Re: SABR Micro, DAB+, 3D

jdow
 

Indeed. For his background musing er music something small like SDRSharp used to be is your tool. Call it maybe DABSharp. Fire it up in the background, probably on the cheapest NUC he can get. Hm, I have a collection of junkers around here (former theme park ride vehicle audio playback devices). Some of them still boot. So what if they are XP machines? I did say "old" sdrsharp, didn't I?

{^_^}

On 20210630 05:03:36, Siegfried Jackstien wrote:

only 8km away ?? then you do not need a big antenna like your lopper (but seems to be a good wideband solution)

a paperclip poked in an rtl dongle should work (for your local receive)

for dab"dx" you need a good vhf yagi for around 200 megs but you sure know that

... while talking about antennas ... is your feed mounted ?!? (pulling your leg a bit)

greetz sigi

Am 30.06.2021 um 13:44 schrieb Simon Brown:

Probably I’ll develop as a plug-in as I have the radio interface available. Once working I could then make it a standalone program but that’s quite a lot of work.

 

One reason for DAB+ is I then have the classes available for future work, also I can listen to Jazz FM (UK) and also play DAB+ when we get good Tropo.

 

Currently using a nice 100 to 600MHz log periodic, am only ~8 km from the transmitter.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

could you include that in console?? or will it be an extra app like qt dab?!?

Am 30.06.2021 um 13:29 schrieb Simon Brown:

Ah,

 

QT-DAB does work, drives the Airspy correctly. My birthday present from me to me in October will be my own DAB+ receiver app 😊 .

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:16
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

look for qt dab ... soft from jan

https://github.com/JvanKatwijk/qt-dab

lots of hardware included (rtl dongle, sdrplay, lime, pluto etc etc) ... he even works on receive via dab and retransmit on analog fm stereo (if you use a pluto) ... then you can receive your favourite dab station on any normal fm radio in your house (retransmitting not finished yet)

jan is now on holiday but will be back in a few weeks (mid of july?!?)

greetz sigi dg9bfc

Am 30.06.2021 um 10:18 schrieb Simon Brown:

I’m just running the Windows kit, haven’t built it or even looked at the code.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 30 June 2021 07:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

[Edited Message Follows]

On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:

Welle.io is not bad but uses a lot of CPU and I don’t think it drives my Airspy R2 correctly.

It depends. If it is built to use FFTW, then yes. The CPU-load in my case is around 17%.
But if I build Welle-IO using Kiss-FFT and compiled using fast-calls (option -Gr), then the CPU drops to only 10%.

Edit: the Airspy problem is proably related to how Welle-IO handles SoapySDR. Not very good IMHO.


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Re: SABR Micro, DAB+, 3D

jdow
 

No fooling. It's too easy to break through DRM attempts that are not extremely tenacious.

{^_^}

On 20210630 04:45:46, Simon Brown wrote:

Hi,

 

I can offer a 30-day trial (AAC licence allows this). I would have to incorporate a ‘Pay to Play’ option somehow. Licencing software is a total PITA .

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:35
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

i do not know if and how jan licensed his soft ...

if you would have to pay 1 euro per user ... then the user should pay it (or it will be a very expensive hobby for you hi hi)

means you build your soft without the dab decoder and if a user wants that dab decode he can buy a plugin for a euro?!?!

i do not know if it is possible to "split" that in half (means give your sdr console for free but have a paid plugin)

greetz sigi

 

Am 30.06.2021 um 13:18 schrieb Simon Brown:

But,

 

Software like this needs an AAC licence even if it’s free. I think I will have to pay $1,000 one-off, then 98 cents per user to add AAC.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:16
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

look for qt dab ... soft from jan

https://github.com/JvanKatwijk/qt-dab

lots of hardware included (rtl dongle, sdrplay, lime, pluto etc etc) ... he even works on receive via dab and retransmit on analog fm stereo (if you use a pluto) ... then you can receive your favourite dab station on any normal fm radio in your house (retransmitting not finished yet)

jan is now on holiday but will be back in a few weeks (mid of july?!?)

greetz sigi dg9bfc

Am 30.06.2021 um 10:18 schrieb Simon Brown:

I’m just running the Windows kit, haven’t built it or even looked at the code.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 30 June 2021 07:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

[Edited Message Follows]

On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:

Welle.io is not bad but uses a lot of CPU and I don’t think it drives my Airspy R2 correctly.

It depends. If it is built to use FFTW, then yes. The CPU-load in my case is around 17%.
But if I build Welle-IO using Kiss-FFT and compiled using fast-calls (option -Gr), then the CPU drops to only 10%.

Edit: the Airspy problem is proably related to how Welle-IO handles SoapySDR. Not very good IMHO.


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Re: SABR Micro, DAB+, 3D

jdow
 

There is still the kilo-buck up front to deal with.
{o.o}

On 20210630 04:35:26, Siegfried Jackstien wrote:

i do not know if and how jan licensed his soft ...

if you would have to pay 1 euro per user ... then the user should pay it (or it will be a very expensive hobby for you hi hi)

means you build your soft without the dab decoder and if a user wants that dab decode he can buy a plugin for a euro?!?!

i do not know if it is possible to "split" that in half (means give your sdr console for free but have a paid plugin)

greetz sigi


Am 30.06.2021 um 13:18 schrieb Simon Brown:

But,

 

Software like this needs an AAC licence even if it’s free. I think I will have to pay $1,000 one-off, then 98 cents per user to add AAC.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:16
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

look for qt dab ... soft from jan

https://github.com/JvanKatwijk/qt-dab

lots of hardware included (rtl dongle, sdrplay, lime, pluto etc etc) ... he even works on receive via dab and retransmit on analog fm stereo (if you use a pluto) ... then you can receive your favourite dab station on any normal fm radio in your house (retransmitting not finished yet)

jan is now on holiday but will be back in a few weeks (mid of july?!?)

greetz sigi dg9bfc

Am 30.06.2021 um 10:18 schrieb Simon Brown:

I’m just running the Windows kit, haven’t built it or even looked at the code.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 30 June 2021 07:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

[Edited Message Follows]

On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:

Welle.io is not bad but uses a lot of CPU and I don’t think it drives my Airspy R2 correctly.

It depends. If it is built to use FFTW, then yes. The CPU-load in my case is around 17%.
But if I build Welle-IO using Kiss-FFT and compiled using fast-calls (option -Gr), then the CPU drops to only 10%.

Edit: the Airspy problem is proably related to how Welle-IO handles SoapySDR. Not very good IMHO.


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


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


Re: SABR Micro, DAB+, 3D

jdow
 

You mean all the broadcasters have not agreed to switch over to DAB++ (aka something still under patent) on that date?

{O,o}

On 20210630 04:29:26, Simon Brown wrote:

Ah,

 

QT-DAB does work, drives the Airspy correctly. My birthday present from me to me in October will be my own DAB+ receiver app 😊 .

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 30 June 2021 12:16
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

look for qt dab ... soft from jan

https://github.com/JvanKatwijk/qt-dab

lots of hardware included (rtl dongle, sdrplay, lime, pluto etc etc) ... he even works on receive via dab and retransmit on analog fm stereo (if you use a pluto) ... then you can receive your favourite dab station on any normal fm radio in your house (retransmitting not finished yet)

jan is now on holiday but will be back in a few weeks (mid of july?!?)

greetz sigi dg9bfc

Am 30.06.2021 um 10:18 schrieb Simon Brown:

I’m just running the Windows kit, haven’t built it or even looked at the code.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 30 June 2021 07:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D

 

[Edited Message Follows]

On Wed, Jun 30, 2021 at 08:22 AM, Simon Brown wrote:

Welle.io is not bad but uses a lot of CPU and I don’t think it drives my Airspy R2 correctly.

It depends. If it is built to use FFTW, then yes. The CPU-load in my case is around 17%.
But if I build Welle-IO using Kiss-FFT and compiled using fast-calls (option -Gr), then the CPU drops to only 10%.

Edit: the Airspy problem is proably related to how Welle-IO handles SoapySDR. Not very good IMHO.


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- + - + -

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


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


Re: Severe storms at KA1GJU Superstations!

Michael.2E0IHW
 

Kriss, don't fall asleep :-)

We are due to get UK fibre-optic to the house. Obviously no future worry of surges 
on overhead copper phone wires, but does exposure of glass-fibre  to close lightning strikes
give rise to any concern?

As our power lines are also overhead, I will continue to unplug the router psu
when Thor approaches.

Also:  unplugging the psu will disconnect  the fibre link to the ISP.
Will there be delay and/or reduced download data rate as the ISP
resyncs on reconnection?

Michael UK


On 30/06/2021 23:11, Kriss Kliegle KA1GJU wrote:

Just had VERY close strike just north of us (about 1/4 of second delay of BOOM), so far... no damage to my gear.
Luckily we have fiber optic to house, no stinking coax from street!

73 Kriss KA1GJU


Re: Severe storms at KA1GJU Superstations!

Kriss Kliegle KA1GJU
 

Yes we are!
Just had VERY close strike just north of us (about 1/4 of second delay of BOOM), so far... no damage to my gear.
Luckily we have fiber optic to house, no stinking coax from street!

How's that Server Off-line for XXXXXXX  reason coding going? We spoke of it last year about alerting users that it's off the air due to maintenance, weather, etc.


73 Kriss KA1GJU


Re: 116 dB SNR off the back of the 2m beam!

Tom Frobase
 

Simon,

Did Elad ever give an explanation on the high gain in my unit? … Tom, N3LLL 

On Wed, Jun 30, 2021 at 11:20 AM Simon Brown <simon@...> wrote:

All,

 

As per the title, a neighbour 5 miles (8 km) away off the back of my 2m beam. The FDM DUO + Q5 Signal transverter still holding up.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 


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Re: Severe storms at KA1GJU Superstations!

Simon Brown
 

Kriss,

 

You’re having some rough weather in the US these days.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Kriss Kliegle KA1GJU
Sent: 30 June 2021 22:14
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] Severe storms at KA1GJU Superstations!

 

I have turned most of them off and disconnected the feedlines, CAT5, USB's for the time being.

Superstation #1 is still on the air and possibly KA1GJU@PCARC. Looks like will be down for a while until the line passes!


73 Kriss KA1GJU


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