Date   

Re: World map - Satellites

Francesco Di Giovanni
 

YES!


Re: World map - Satellites

Larry Weaver
 

That would be great Simon!

Thank You


Re: Clone Console configurations.

Max
 

On Mon, Oct 10, 2022 at 04:18 PM, G4GIR wrote:
Yes I can confirm it works and I get a lot of the settings in the new identity after back up and restore. However it is not a carbon copy of the original Backup.
 
Wonder if you saw this too? Am I asking for too much?
Hi Ian

Sorry, had very busy day (got plumber in fitting new boiler and I am his lacky) so no chance to fully inspect your list, but yes, broadly speaking I found if I just did the backup/restore that not everything came back as a carbon copy. Yes, audio source was reset to default but AGC seemed to copy over fine as far as I could see so not identical results to yours. I'm not running an external radio so that might account for some of the differences. I did notice that if I copied the registry branch that it was an even closer copy (bandplan settings correct for one), but still not perfect in every single parameter (like the TX DSP audio settings I mentioned). But all of the important stuff seemed to go over (Favourites/Memories etc.) so it was very little that needed resetting and it's only once to do so no biggie I didn't think?

I don't have kit for QO100 yet, but I do use transverters with 28MHz IF and I find the displayed frequency gets relayed over to my logger perfectly OK for those bands (6m, 2m). My "everyday" logger is an extremely simple one (intentionally, to match my simple brain) and is called NAQLog by Clive, G4NAQ:

https://shirehampton-arc.org.uk/g4naq-naqlog/

I also use WSJT-X with CAT control using Kenwood TS2000 protocol, like the logger, and no issues with the transverters there either so sorry, can't be of help on that score.

Not sure about the TX panel when used in conjunction with an external radio, sorry. I don't really have any concept of how an eternal radio integrates with SDRC as I've never had to think about it!

73

Max


Re: QO-100 and SDR Console FT8

Siegfried Jackstien
 

i homebrewed the tcxo modding in my lnb ... simon has the same stability now i built him a feed)

i never had problems decoding ft4 or ft8

sidenote ... also voice sound much cleaner with a less wobbly lnb (and lower and slower corrections)

can also be seen on the fixed tone on the cw beacon if you zoom in with a high resolution

dg9bfc sigi

Am 10.10.2022 um 21:23 schrieb dl9aj@...:

Hello all,

I had the same problem with FT8 and SDR Console. FT8 was not decodable.
After a closer investigation i found out that this problem is dependent of the stability in the LNB.
Unstable LNB`s need more correction of the middle beacon in the SDR Console.
This made the FT8 signal undecodable.
I changed my old LNB for a stable Bullseye LNB.
Since then I don`t have any problems with receiving FT8.
After a few minutes (warmup phase of LNB) FT8 can be decoded with and without correction of the center beacon.
I contacted Ian G4GIR and recommendet this to him.
The new Bullseye LNB gave him the same positive results.

Vy 73

Peter DL9AJ


Re: QO-100 and SDR Console FT8

 

Hello Peter
 
Thanks' for your help with this problem.
I can confirm the change of LNB to the Bullseye has made FT8 100% workable on QO-100.
 
As Simon said earlier it had to be the stability of the LNB, thanks' to you and your recommendation I am a happy bunny!!!
 
Cheers
 
73
 
Ian  G4GIR
 

----- Original Message -----
From: <dl9aj@...>
Sent: 10/10/2022 20:15:36
Subject: Re: [SDR-Radio] QO-100 and SDR Console FT8

Hello all,

I had the same problem with FT8 and SDR Console. FT8 was not decodable.
After a closer investigation i found out that this problem is dependent of the stability in the LNB.
Unstable LNB`s need more correction of the middle beacon in the SDR Console.
This make the FT8 signal undecodable.
I changed my old LNB for a stable Bullseye LNB.
Since then I don`t have any problems with receiving FT8.
After a few minutes (warmup phase of LNB) FT8 can be decoded with and without correction of the center beacon.
I contacted Ian G4GIR and recommendet this to him.
The new Bullseye LNB gave him the same positive results.

Vy 73

Peter DL9AJ


Re: QO-100 and SDR Console FT8

Peter Dudzinski
 

Hello all,

I had the same problem with FT8 and SDR Console. FT8 was not decodable.
After a closer investigation i found out that this problem is dependent of the stability in the LNB.
Unstable LNB`s need more correction of the middle beacon in the SDR Console.
This made the FT8 signal undecodable.
I changed my old LNB for a stable Bullseye LNB.
Since then I don`t have any problems with receiving FT8.
After a few minutes (warmup phase of LNB) FT8 can be decoded with and without correction of the center beacon.
I contacted Ian G4GIR and recommendet this to him.
The new Bullseye LNB gave him the same positive results.

Vy 73

Peter DL9AJ


Re: QO-100 and SDR Console FT8

Peter Dudzinski
 

Hello all,

I had the same problem with FT8 and SDR Console. FT8 was not decodable.
After a closer investigation i found out that this problem is dependent of the stability in the LNB.
Unstable LNB`s need more correction of the middle beacon in the SDR Console.
This make the FT8 signal undecodable.
I changed my old LNB for a stable Bullseye LNB.
Since then I don`t have any problems with receiving FT8.
After a few minutes (warmup phase of LNB) FT8 can be decoded with and without correction of the center beacon.
I contacted Ian G4GIR and recommendet this to him.
The new Bullseye LNB gave him the same positive results.

Vy 73

Peter DL9AJ


Re: World map - Satellites

Matthias
 

Yes Simon, that would be nice!

 

Thanks and regards

 

Matthias

 

www.dd1us.de

 

 

Von: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Im Auftrag von Calder Latham via groups.io
Gesendet: Montag, 10. Oktober 2022 18:22
An: main@SDR-Radio.groups.io
Betreff: Re: [SDR-Radio] World map - Satellites

 

Sure...if your willing I think it would be cool...FWIW.

 

Thanks for all your Great work Simon.

 

Cal...W1HHO.

On 10/10/2022 09:36, Simon Brown wrote:

Hi All,

 

The satellite data has a new format which I should use going forward https://celestrak.org/NORAD/documentation/gp-data-formats.php called OMM, this replaces TLE.

 

A good place to try this out would maybe be the World Map, I know someone did ask for this in the past. An example with be the ISS or maybe a NOAA satellite.

 

So - any interest in satellite plotting in the World Map?


--

- + - + -

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

-- All the Best from the woods of Maine.


Re: World map - Satellites

 

That would be great.
 
Greetings Uwe


Re: World map - Satellites

YaddUser@...
 

Definitely 

thank you simon


Re: World map - Satellites

Jerry Lofstead W3CDE
 

Yes


On Mon, Oct 10, 2022 at 9:36 AM Simon Brown <simon@...> wrote:
Hi All,

The satellite data has a new format which I should use going forward https://celestrak.org/NORAD/documentation/gp-data-formats.php called OMM, this replaces TLE.

A good place to try this out would maybe be the World Map, I know someone did ask for this in the past. An example with be the ISS or maybe a NOAA satellite.

So - any interest in satellite plotting in the World Map?

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


Re: World map - Satellites

Calder Latham
 

Sure...if your willing I think it would be cool...FWIW.


Thanks for all your Great work Simon.


Cal...W1HHO.

On 10/10/2022 09:36, Simon Brown wrote:
Hi All,

The satellite data has a new format which I should use going forward https://celestrak.org/NORAD/documentation/gp-data-formats.php called OMM, this replaces TLE.

A good place to try this out would maybe be the World Map, I know someone did ask for this in the past. An example with be the ISS or maybe a NOAA satellite.

So - any interest in satellite plotting in the World Map?

--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
-- All the Best from the woods of Maine.


Re: Bandwidth-/ADC-Settings with RX-888 MKII

Dirk
 
Edited

On Mon, Oct 10, 2022 at 04:29 AM, jdow wrote:

The 104.7 MHz issue is almost certainly a simple aliasing issue. Filters are not perfect. All they do is reduce or accentuate some frequencies over other frequencies. The R820T chip family has an interesting tunable filter design. However, it is not perfect. The FM band generally contains very strong signals that can punch through the clever but still limited filters in the R820T family of tuners. Band reject filters are sold to deal with this in particularly bad cases.

AirSpy and AirSpy R2 use the same tuners and suffer the same issues. They work up to a 10 MHz sample rate. The reasonably anti-aliased bandwidth is about 8 MHz, the same as with the RX888 family.

The lack of flatness on the VHF passband is simply an artifact of the tuner design.

Yes, I think you're right.

What I found out:
There is no 104.7 MHz carrier with the culture program "WDR 3" (as shown in my picture). But there are 2 very strong carriers with this program at 92.7 MHz and at 97.0 MHz (this one is strongest). How can these carriers be mirrored from within the selected band into the passband?
So all the same,- should be an aliasing-effect...


Re: Clone Console configurations.

 

Hello Max
 
Thankyou very much for your reply very much appreciated.
 
Yes I can confirm it works and I get a lot of the settings in the new identity after back up and restore. However it is not a carbon copy of the original Backup. For example, some of the setting I noticed which are different:-
 
Display Spectrum Freq Range in Backup is 99.9, in Restore is 9.9.
External Radio in Backup not initiated in Restore.
Geo Beacon in Backup not initiated in Restore.
Colour scheme Spectra View in Backup Blue and White in Restore.
AGC set to off in Backup set to 7 in Restore.
Audio set to Cable input VB Audio in Backup, sets to Default in Restore
 
I am sure there are gonna be others, but so far none of them too difficult to rectify.
 
Wonder if you saw this too? Am I asking for too much?
 
Would be interested in what Logging programme you are using? I use Logger32 whilst using SSB and CW I can log all frequencies ok but when using JTDX/WSJTX in conjunction with Logger32, I am getting QO-100 frequencies stored as the IF 432.040MHz, of course the JTDX/WSJTX Log file also contains duff band info, I can't see anyway around it within JTDX/WSJT
X. If you don't use Logger32 then no problem.
 
Not sure if the TX Panel is relevant in my set up? I use  SDR Play Duo for RX and External Radio (FT-991) for TX.
 
So thanks' again Max
 
73
 
Ian G4GIR
 
 

----- Original Message -----
From: Max <radiomax@...>
Sent: 10/10/2022 00:07:59
Subject: Re: [SDR-Radio] Clone Console configurations.

On Sun, Oct 9, 2022 at 10:41 AM, G4GIR wrote:
I thought that by adding a new Identity, i.e  Ident 2. QO-100 FT8, and copying the Identity files from Identity 1. QO-100 CW/SSB to the new Identity 2. QO-100 FT8, I would have a mirrored copy, but alas no it seems not. So is there a way to achieve this with out having to enter all the parameters again i.e converter figures,  views, external radio settings etc etc?
Ian

Apologies (and to Simon). As usual my keyboard ran ahead of me. For some reason I thought when I tried out a straight "Backup/Restore" (from the Tools tab) that some parts of SDRC such as the Definitions/converter offsets did not copy over, but I just tried it again and in fact just Backup/Restore to new Identity seems to work perfectly fine. Scrub all the stuff about Registry editing. Too much information. I should have guessed that Simon had it covered perfectly  well already!

HOWEVER, after your "Restore" to the new identity, do a restart of SDRC for the restore to fully take effect in the new identity. That's what had confused me earlier, thinking the Registry copy was also needed.

Sorry to all for unnecessary bandwidth in my last post!

Max


Re: Remote control of an antenna switch ???

Siegfried Jackstien
 

Some usb switch control?? We only have usb for ptt (for now)...
I am waiting that simon adds a band data out via usb... Seems to be similar to your antenna selection via usb...
Simon... When do we get a user setable (and maybe band depending) table for these 4 8 or 16 channel relais boards??
So a user can select antennas or amp chain or filters or whatever via usb out
No no.. Grabbing cat qrg does not work!! (only usable for shortwave)... Not usable for a lime or pluto to select the higher bands and if needed switch in additional converters (say for 3cm..or for 24ghz or higher).. 
You already HAVE that table (now contains drive and gain settings per band if you select track tx frequency) 
Add some more blocks into that table to select rx and tx usb relais to be set or reset and we have it.. 
If user then connects an antenna relay, a rx tx relay.. A preamp with filter or whatever.. Is on users end.. At first we need a digital data out (a logic signal) 
And those multichannel relay boards seem to be the easiest solution cause you know how to use them
Greetz sigi dg9bfc 


Am 10.10.2022 16:44 schrieb David Slipper <softfoot@...>:

Hi, I have a couple of SDR dongles each with a USB controlled antenna
switch on a remote SDR-Radio server and at the moment I have a FreeBasic
program controlling the switches.

Is there some way to integrate the switch control within SDR-Radio
"Server" ???

Regards,
Dave









Remote control of an antenna switch ???

David Slipper
 

Hi, I have a couple of SDR dongles each with a USB controlled antenna switch on a remote SDR-Radio server and at the moment I have a FreeBasic program controlling the switches.

Is there some way to integrate the switch control within SDR-Radio "Server" ???

Regards,
Dave


Re: World map - Satellites

John Talbot
 

Yes

On Mon, Oct 10, 2022 at 8:36 AM Simon Brown <simon@...> wrote:
Hi All,

The satellite data has a new format which I should use going forward https://celestrak.org/NORAD/documentation/gp-data-formats.php called OMM, this replaces TLE.

A good place to try this out would maybe be the World Map, I know someone did ask for this in the past. An example with be the ISS or maybe a NOAA satellite.

So - any interest in satellite plotting in the World Map?

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


World map - Satellites

Simon Brown
 

Hi All,

The satellite data has a new format which I should use going forward https://celestrak.org/NORAD/documentation/gp-data-formats.php called OMM, this replaces TLE.

A good place to try this out would maybe be the World Map, I know someone did ask for this in the past. An example with be the ISS or maybe a NOAA satellite.

So - any interest in satellite plotting in the World Map?

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


Re: IQ 'Rewind/Replay' feature (?)

Simon Brown
 

Paul,

You can only loop when playing back a recording. I did think about a possibility of playing a loop while running live but never added it.


From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of N8CVW via groups.io <n8cvw.gbmi@...>
Sent: 10 October 2022 14:31
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] IQ 'Rewind/Replay' feature (?)
 
Hi Bjarne

I'm not seeing how this answers my question as to whether there is already a 'recording' in progress,

'looping' in the background, that I can access any time I wish (?)

or, 

must I 'initiate a recording' in advance of being able to rewind and playback 

an analogy might be automobile dash cams that are constantly spooling video so if there's a crash you already have ? - 30 seconds ? of video preceding the event

I still haven't seen this question addressed

many thanks for your response

Paul
N8CVE





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


Re: Bandwidth-/ADC-Settings with RX-888 MKII

jdow
 

The 104.7 MHz issue is almost certainly a simple aliasing issue. Filters are not perfect. All they do is reduce or accentuate some frequencies over other frequencies. The R820T chip family has an interesting tunable filter design. However, it is not perfect. The FM band generally contains very strong signals that can punch through the clever but still limited filters in the R820T family of tuners. Band reject filters are sold to deal with this in particularly bad cases.

AirSpy and AirSpy R2 use the same tuners and suffer the same issues. They work up to a 10 MHz sample rate. The reasonably anti-aliased bandwidth is about 8 MHz, the same as with the RX888 family.

The lack of flatness on the VHF passband is simply an artifact of the tuner design.

{^_^}

On 20221009 12:56:31, Max wrote:

On Sun, Oct 9, 2022 at 01:24 PM, Dirk wrote:
1. Why can I see only about 10 MHz of the whole FM spectrum (87.5-108.5 MHz)?
2. Why is there a sinus-like peak above this spectrum?
3. Why can I hear a station on 104.7 MHz (not in the shown 10 MHz spectrum)?
See here for block diagram of BBRF103 which is the original SDR designed by Oscar Steila, IK1XPV on which the RX666 and RX888 are based:

https://www.rtl-sdr.com/the-breadboard-rf103-a-homemade-16-bit-0-1800-mhz-software-defined-radio/comment-page-1/

You can see it's only direct sampling on the HF bands up to about 30 MHz. For frequencies above that then there is another path via the RTL Dongle tuner chip fed from second SMA socket which forms the limitation of the design for VHF/UHF and up, as this chip (on BBRF103 it's the Rafael Micro R820T2) only allows for 10MHz bandwidth. Actually I think it's usually 8 MHz on most dongles but somehow on the BBRF103/RX666/RX888 it's stretched to 10MHz. This explains why only 10 MHz bandwidth above 30 MHz. Actually I think with the RX888 the direct sampling bandwidth is stretched to 60MHz for the higher available sampling rate. Others know better than I. I don't have an RX888 (yet!).

I seem to remember that Justin Peng, originator of RX666/888 mentioned plans to produce a down-converter to make receiver true direct sampling at VHF/UHF but I don't think this has materialised yet, or maybe never will?

As Simon says, roll off at the ends of the sample bandwidth window is entirely normal with the RTL-SDR chip. Also I see this in the SDR-Play receivers. I don't see it on my Hermes Lite 2 direct sampling receiver. It's an almost perfect steep cutoff at either end of the sapling window. I would wager it's maybe also sharp cutoff when using the HF direct sampling part of the RX888?

How on earth you are hearing the station on 104.7 outside the sampling window I have no idea. Odd! However, the S-Meter is reading -140dBm which is extremely weak to put it mildly. Well I'd expect that to be about noise level with no antenna plugged in! Maybe it is possible to just about hear some stuff outside of the set bandwidth? At that level I am amazed it's either audible or that you can get RDS readout.

Max