Date   

Re: Center tuned Wide-U mode #sdrconsolev3 #future

Brendan Wahl
 

Having started my DRM side of our hobby with a Tentec RX-320 a good while ago, I've got some thoughts.

1 - DRM does very, very well using SDR's for reception under DReaM v2.1.1, which is the latest (and so far, last) version out there. It does NOT, however, quite appear the same to the operator/listener (compared to the analog receiver days), and by that I mean simply that the "Level" meter no longer reads that well. With analog reception, the input level was to be set at ~-25dB, which was half-scale. Using IQ as the source, I'm lucky to see ~-10dB for the input level: reception is not actually affected, and it still takes about 15dB SNR on average for adequate reception (with the most common transmission parameters). Frankly, the software is old, and needs a real update, but for various and sundry reasons that ain't happening. Still works though.

2 - SDRC/the Wide-U Mode: for example, to receive RNZ Pacific on 7285 I tune the receiver to 7280, 5 kHz low, then set to Wide-U mode with a filter 10kHz wide. This sets 7285 squarely in the middle of the filter, and the filter skirt settings have been set to 257 for the length, set to Blackman, and the filter width is set to 0 to 10000. Adjacent channel interference is well-muted, which really helps with reception.

3 - DReaM: here's where it gets a bit tricky, although most of us ham/swl/computer types will not see it as such. In DReaM, the INI file needs to be modified to change the frequency of the input. It defaults to 12kHz, to allow for easy analog signal routing with conventional receivers. In other words, it was written a long time ago. So, here's the section of the INI to modify, with the modified setting highlighted in red.

    [FrontEnd]
    automeasurementbandwidth=1
    calfactoram=0
    calfactordrm=0
    defaultmeasurementbandwidth=0
    ifcentrefrequency=6000
    smeterbandwidth=0
    smetercorrectiontype=0

Save and close. That's the only software change needed.

4 - I also use a virtual audio cable of course, either of the two (VAC, VBA) will work fine to connect SDRC to DReaM. Do not use an equalizer! Remember it will affect the input signal to the decoder, which requires a completely flat, unchanged signal. Don't over-drive the signal either, as a too-high level will actually decrease the SNR. Adjust all volumes as needed, and then adjust again to find the sweet spot.

5 - Not going to get into the weeds of the DRM saga, suffice to say it ranks up there as a yet-another-great- technology caught in a maelstrom of incumbent tech, industry torpor, and consumer confusion, which is putting it mildly. However, certain, highly-populated nations around the world are now adopting it as their future for MW/HF radio broadcasts, so a revival is occuring, just not in North America or Europe.

Now, if our most-excellent author and coder does what I think he's going to do, this advice becomes moot (again!), as this configuration probably won't work this way. Most likely the IF frequency will have to adjusted, but it's only more tweaking, right? ;)

Brendan WA7HL


Re: Notching out one frequency

George Stein - NJ3H
 

Hello Joanne,

Thank you for you offer to help.  We have our grandson every day, so was busy with him yesterday.  He will be here shortly, so am trying to do what you need quickly and accurately.

Attached are 5 files.
1. Elad No Attenuation 1
2. Elad No Attenuation 2
3. Elad 20 db Attenuation
4. Perseus No Attenuation
5. Perseus 20 db Attenuation

The Elad is the radio that appears more susceptible to the strong station (1240 khz).  The Perseus appears to be able to withstand the strong signal.  Per google maps, I am 1.79 miles (straight line) from the transmitter.  The station broadcasts 1000 watts both day and night.  The screen captures were made Sunday 29 March 2020 just after 11 AM PDT.

The reason for two "Elad No Attenuation" files is that as the station in question is broadcasting, the spectrum display would jump up and down.  I tried to capture both the worst and best images of the jumping.

The other files names are self-explanatory.  I tried to make the display of both radios as equal as possible covering the same frequency range and signal strengths.

You are correct.  The previous screen captures were made just a few minutes apart.

Kindly let me know if there are any other information I can provide you.

Regards,
George


Re: Procesoor vs GPU benefit #sdrconsolev3 #suggestion #gpu

Ray Lyford
 

CUDA is the better option.


From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of LB1HI Joe, Jozef <wj.szeliga@...>
Sent: 29 March 2020 17:50
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: [SDR-Radio] Procesoor vs GPU benefit #sdrconsolev3 #suggestion #GPU
 
Hi All!
Which gives more benefit for Console V3 a PC processor or graphics card? (CUDA).
Any personal experience, suggestions? Suggestions and professional technical comments are welcome. Tnx.
 
73, Jozef lb1hi


Re: Processor vs GPU benefit #sdrconsolev3 #suggestion #gpu

Simon Brown
 

Hi,

 

See: https://www.sdr-radio.com/computer

 

I suggest a GPU, but an Intel F chip (no graphics). I’ve been testing on an Intel® Core™ i5-6200U Processor DELL laptop and it’s fine. If you want to run high bandwidth then a GPU will help.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of LB1HI Joe, Jozef
Sent: 29 March 2020 18:51
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] Procesoor vs GPU benefit #sdrconsolev3 #suggestion #GPU

 

Hi All!

Which gives more benefit for Console V3 a PC processor or graphics card? (CUDA).

Any personal experience, suggestions? Suggestions and professional technical comments are welcome. Tnx.

 

73, Jozef lb1hi


Procesoor vs GPU benefit #sdrconsolev3 #suggestion #gpu

LB1HI Joe, Jozef
 

Hi All!
Which gives more benefit for Console V3 a PC processor or graphics card? (CUDA).
Any personal experience, suggestions? Suggestions and professional technical comments are welcome. Tnx.
 
73, Jozef lb1hi


Re: Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"

Simon Brown
 

OK,

 

I assume you're running in native Windows, not Hyper-V or parallels or similar.

 

As has been suggested, the port's in use.

 

Look here: https://buffered.com/support/cant-connect-im-getting-error-message-socket-bind-failed-local-address/ to find the program which is using the port, in your case use the port assigned to the service. You can always try a different port to see if this works, if so then the port is definitely tied up by another program.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Cathal Ferris
Sent: 29 March 2020 15:26
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"

 

<pre>Hi everyone.

<br /></pre>

<pre>Having a bit of a problem with the SDR Console server service. I'm getting a "permission denied" when the service start process tries to bind to the socket.</pre> <pre><br /></pre> <pre>It was previously working fine. I'm still actively building the machine, so I'm not sure exactly when the service stopped working as expected.</pre> <pre><br /></pre>

 


Re: Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"

Cathal Ferris
 

Quite sure that I don't have any other copies of the server manager running, and I've re-verified that the port is not listed as in use via netstat output.

I had checked exactly that previously and after the post-uninstallation reboot as well.

Looking in the Windows logs, application log, there's this error:

Faulting application name: SDRServerService.exe, version: 1.0.0.1, time stamp: 0x5e3815f5
Faulting module name: mfc120u.dll, version: 12.0.21005.1, time stamp: 0x524fa0af
Exception code: 0xc0000005
Fault offset: 0x00000000001b5cbf
Faulting process ID: 0x894
Faulting application start time: 0x01d605cc2363051c
Faulting application path: C:\Program Files\SDR-Radio.com (V3)\SDRServerService.exe
Faulting module path: C:\WINDOWS\SYSTEM32\mfc120u.dll
Report ID: 7f31138e-19dd-4658-830f-a1e7baa62a0b
Faulting package full name: 
Faulting package-relative application ID: 

chkdsk of the c:\ drive (SanDisk 500Gb SSD) gives no errors seen.
The mfc120u.dll file appears to be in the correct location and seems to be correct as well. 

Definitely an odd one..


Re: Favourites

Simon Brown
 

Hi,

 

It’s in 3.0.22, available next week I hope.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Clivejmsmith@...
Sent: 29 March 2020 12:57
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] Favourites

 

Hi. There is a function in sdr# that displays a memory CH on the waterfall. I know SDR console has this with the limited memories but I have a list of hundreds I have built up. Is there a way to do this with favourites?


Re: Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"

Dennis Matzen
 

You can get this error if the port is already in use. Are you sure you do not have multiple copies of SDR Console installed. You can check to see if the port is already in use by opening a CMD window and enter "netstat -a", look for an entry with port 50101 in a LISTEN state.


Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"

Cathal Ferris
 
Edited

Hi everyone.

Having a bit of a problem with the SDR Console server service. I'm getting a "permission denied" when the service start process tries to bind to the socket. It was previously working fine. I'm still actively building the machine, so I'm not sure exactly when the service stopped working as expected.

Hardware: Intel NUC, 16gb RAM, core i3 processor. Wireless connection to network, and there's a network-over-usb bridge present to contact my Kiwi over USB, though I've currently got that disabled

Radios attached are an SDRPlay RSP1a, a HackRF, and an Airspy HF+ Discovery.<

Pretty much, everything was working about a fortnight ago, then I tried yesterday and found no port open as seen from my laptop. Upon investigation, the port was not being bound when the service restarted.

The server manager program is definitely being started with admin privileges, the user account is a local admin on the NUC. Windows firewall is disabled. Connectivity otherwise fine.

I'm not entirely sure what is the problem here. I've updated from .18 to .20, no effect. Uninstalled, rebooted, reinstalled, rebooted, still no
effect.

Here's the excerpt from the logs.
Any other log excerpts can be shown if it'll help anyone.

Thanks,
Cathal.

2020-03-29 15:16:39, CServerService::OnStart
2020-03-29 15:16:39, CServerService::ServiceWorkerThread
2020-03-29 15:16:39, CoInitialize result = 00000000
2020-03-29 15:16:39, Security&gt; Starting thread
2020-03-29 15:16:39, Security&gt; Setting priority to 'Below normal' (-1)
2020-03-29 15:16:39, Security&gt; Database =
C:\ProgramData\SDR-Radio.com\SecurityDatabase_001.sqlite
2020-03-29 15:16:39, Security&gt; Size = 100 KB
2020-03-29 15:16:39, Security&gt; Opened
C:\ProgramData\SDR-Radio.com\SecurityDatabase_001.sqlite
2020-03-29 15:16:39, Security&gt; Table Security_901 Exists, 799 entries
2020-03-29 15:16:39, Security&gt; -
2020-03-29 15:16:39, OnAir&gt; Starting thread
2020-03-29 15:16:39, OnAir&gt; Setting priority to 'Below normal' (-1)
2020-03-29 15:16:39, OnAir&gt; Loading On-Air options
2020-03-29 15:16:39, OnAir&gt; Loading On-Air options
2020-03-29 15:16:39, Listener&gt; Starting thread
2020-03-29 15:16:39, Listener&gt; Setting priority to 'Normal' (0)
2020-03-29 15:16:39, Listener&gt; Loading GeoLite2 database
2020-03-29 15:16:42, Listener&gt; -
2020-03-29 15:16:42, Listener&gt; Network Address
2020-03-29 15:16:42, Listener&gt; Result = 0
2020-03-29 15:16:42, Listener&gt; Host = Cathal-NUC
2020-03-29 15:16:42, Listener&gt; Entry = 9B3AF950
2020-03-29 15:16:42, Listener&gt; Name = Cathal-NUC
2020-03-29 15:16:42, Listener&gt; Address 1 ..: 10.39.0.149
2020-03-29 15:16:42, Listener&gt; -
2020-03-29 15:16:42, Listener&gt; Firewall
2020-03-29 15:16:42, Listener&gt; Enabled: No
2020-03-29 15:16:42, Listener&gt; Blacklist entries: 0
2020-03-29 15:16:42, Listener&gt; Whitelist entries: 1
2020-03-29 15:16:42, Listener&gt; -
2020-03-29 15:16:42, Listener&gt; Creating socket Overlapped
2020-03-29 15:16:42, Listener&gt; Created socket 3264
2020-03-29 15:16:42, Listener&gt; Enabling SO_REUSEADDR
2020-03-29 15:16:42, Listener&gt; -
2020-03-29 15:16:42, Listener&gt; Setting timeouts: TCP_NODELAY 1,
TCP_QUICKACK 1, SO_RCVBUF 1048576, SO_SNDBUF 1048576, SO_RCVTIMEO 2500 ms,
SO_SNDTIMEO 2500 ms
2020-03-29 15:16:42, Listener&gt; Binding socket 3264 to 10.39.0.149:50101
2020-03-29 15:16:42, Listener&gt; Socket Bind failure: Permission denied.





--
Cathal Ferris


Re: Sharer J7

Kriss Kliegle KA1GJU
 

What's the question?
Are you on the right groups?

Kriss KA1GJU


Re: New Receiver on SDRC

HERB KEATON N2GEW
 

Kriss:
Thanks for the response and the refresh on this.
I have the Cloud IQ "isolated" via the Receive In/Receive Out 
and a multicoupler out of the transceiver, so that's covered. And the "live antenna"
is on a switch, so the Airspy's are disconnected during anyTX.
That's worked for me so I'll put the new radio on the switch.
I'll dig out the cables and plug in.

73
N2GEW


Sharer J7

Chris Frost
 

Request ground station validation


Re: Favourites

Kriss Kliegle KA1GJU
 

No Channel number displayed, but using the Frequency Database, you can have all your memories at few clicks away. Plus you can have any of the downloaded columns displayed, i.e. Call Sign, location, power, time schedule, etc.
You can load your own custom CSV file of frequencies too.
Under the View Tab, General, Frequency Database:

73 Kriss KA1GJU


Favourites

Clive Smith
 

Hi. There is a function in sdr# that displays a memory CH on the waterfall. I know SDR console has this with the limited memories but I have a list of hundreds I have built up. Is there a way to do this with favourites?


Re: Notching out one frequency

jdow
 

George, please show screen shots for no attenuation and for 20 dB attenuation. Change them from s units to dBm as it's easier to compare the program that you say works and the program you say does not work if the display units are approximately the same.

Let's determine if there really IS something wrong or if it is a setup problem. From the looks of things you are objecting to a setup problem. (Notably the visual gain should be reduced. And the range for the display should be set to the same as the range on the other program, at least for testing.) Maybe Simon needs to make a nominal change or maybe the controls simply have to be set better or maybe operator interpretation of what is seen needs to be changed. Let's methodically go after a solution rather than scatter shot for silly solutions (change at the station).

And just for my knowledge base the two screen captures I've seen from one of your previous postings were from the same computer taken at basically the same time on the same day, right. A third screen shot with 20 dB attenuation installed would help determine what is going on. Without it and without a willingness to make adjustments I cannot (hence will not) help you. With these prerequisites we can iterate in on a solution.

{^_^}

On 20200328 13:43:18, George Stein - NJ3H via Groups.Io wrote:
Hi Simon,
I have used the 20db attenuation. Apparently that is all the Elad allows.  The Perseus is different in that the values on the Perseus GUI are replicated in your program (0, 10, 20, 30 db).
It would be nice to be able to "deeply" attenuate just a small range of frequencies for example 1220-1260 kHz, which would take care of my 1240 problem.
I did talk to the station owner today.  He informed me that there have been no changes to the transmitter and the antenna system in a very long time.  They do not have a full time station engineer.  They contract out to a guy who roves around the state of Oregon. Since my setup here has remained unchanged (SDRs and antenaa), he had no idea why signal strength has gone up so dramatically (40 db over s9 to 60 db over s9).
The broadcast band filter works fine to allow usage of the frequencies above and below the bcb.  My issue is to get 1240 zapped so I can dx within the bcb itself.
Stay safe over there and all the best.
George


Re: Notching out one frequency

Denny
 

Just sent it to you George :)  Sorry has been really busy right now with tornadoes in the vicinity around here too !

Denny

On Sat, Mar 28, 2020 at 5:38 PM George Stein - NJ3H via Groups.Io <nj3h=yahoo.com@groups.io> wrote:
Hi Denny,

I have sent you an email to your QRZ address.  Regards,  George


Re: Notching out one frequency

George Stein - NJ3H
 

Hi Denny,

I have sent you an email to your QRZ address.  Regards,  George


Re: pa0nhc : De video versie van mijn presentatie "Kleine actief breedbad ontvang raam antenne 15 kHz - 30 MHz" staat op Youtube.

Siegfried Jackstien
 

RICHTIG!!

http://www.pa0nhc.nl/

works :-)

dg9bfc sigi

Am 28.03.2020 um 21:44 schrieb Peter Nolte:

In der angegebenen URL fehlt der Landeskenner, vermute mal NL.
Peter, DC6BN


Am 28.03.2020 um 22:21 schrieb Michael.2E0IHW via Groups.Io:
Vermutlich echt, doch der Link führt ins Nirwana...


On 28/03/2020 19:13, Nico H.C.J. Veth wrote:
Hallo allemaal,
omdat voorlopig lezingen geven onmogelijk blijven heb ik een video
versie samengesteld.
Vul op Youtune in het zoek venster mij call in “pa0nhc”. Deze lezing
staat tussen de andere video’s.

De uitgebreide bouw beschrijving van dit antenne systeem  staat op
mijn site : www.pa0nhc <http://www.pa0nhc> .

Alle geadresseerden zijn als BCC opgegeven.

Blijf gezond, Jans en ik doen ook ons best.

73’s, Nico pa0nhc, De Meern.



Re: pa0nhc : De video versie van mijn presentatie "Kleine actief breedbad ontvang raam antenne 15 kHz - 30 MHz" staat op Youtube.

Peter Nolte
 

In der angegebenen URL fehlt der Landeskenner, vermute mal NL.
Peter, DC6BN


Am 28.03.2020 um 22:21 schrieb Michael.2E0IHW via Groups.Io:

Vermutlich echt, doch der Link führt ins Nirwana...


On 28/03/2020 19:13, Nico H.C.J. Veth wrote:
Hallo allemaal,
omdat voorlopig lezingen geven onmogelijk blijven heb ik een video
versie samengesteld.
Vul op Youtune in het zoek venster mij call in “pa0nhc”. Deze lezing
staat tussen de andere video’s.

De uitgebreide bouw beschrijving van dit antenne systeem  staat op
mijn site : www.pa0nhc <http://www.pa0nhc> .

Alle geadresseerden zijn als BCC opgegeven.

Blijf gezond, Jans en ik doen ook ons best.

73’s, Nico pa0nhc, De Meern.

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