Date   

Re: DRM decoder on FDM program

Guido Schotmans
 

My old Yaesu FRG-100 with Dream software still does better decoding though!
Is that with or without modification Chris ?

73,

Guido.


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Re: DRM decoder on FDM program

Chris Mackerell
 

Here's a screen shot from my Elad DUOr FDM-SW2 software decoding
CNR on 9870 kHz just now. It's only one channel, so there is
just the one green "Audio" box lit up. If there are more
channels available then the other 3 blank boxes light up
and you can click to select the one you want.

My old Yaesu FRG-100 with Dream software still does better decoding
though!

Cheers, Chris

On 2020-04-22 22:34, Zacharias Liangas via groups.io wrote:
thanx
_._,_._,_
--
Chris Mackerell, Sandy Bay-Marahau Road, Marahau
RD 2, Motueka 7197, New Zealand chris@owdjim.gen.nz


Re: Thinking into the next step ...

Mark Taylor
 

Hi Zacharias,

I have both an Elad FDM-2 and Airspy Discovery (also an RSP1.)  My interest is HF, so these comments are almost entirely about that frequency range.  I can't speak about FM performance, except local or performance below 500 khz.  I only listen to FM for local programming and below 500 khz for novelty.  

The Elad noses out the Discovery nearly all the time.  It is close though.  The Elad software recovers audio better than SDR Console, although I like operating the latter better.  The Elad handles very strong signals well with adequate dynamic range.  Your questions on the Elad software are things I'm not familiar enough with to know off the top of my head, except I haven't found a history in the Elad software.  We are in the middle of a thunderstorm, the antennas are grounded and will stay that way.  So I can't check.

Over all if you are thinking of a Discovery or an Elad and price is no object, I would pick the Elad.  Photo finish if it was a horse race though.

Mark


On Mon, Apr 20, 2020 at 3:36 PM Zacharias Liangas via groups.io <zliangas=yahoo.com@groups.io> wrote:

 

This is my first question posting in this group . I already use a RSP1A and thinking If Elad S2 is ok for geting into the next step  . Your replies are very crucial or the project will never be achieved.

1.What do you think that Elad is good  on handling very strong signals ie having a dynamic range of more than 120 db? If  someone of you own a Airspy discovery how it compares with the Elad ?

2. My RSP1a shown a degraded performance below 500 kHz as comparing to my natural receivers Degen 1103 and ICOM R75 connected to a 2x16 m inverted antenna.  

My question is simple : Is the Elad or the discovery  linear?

 

There are 3 questions related to Elad’s FDM program:

3.Does it have a IF bandwidth of 10 MHz or more so someone can listen to more than 2 FM radio stations same time ? Ideal of news recording .
4.Does it have signal history feature similar to SDR console or SDruno’s PWR/SNR to CSV?

5.DRM Mode supports listening  all the available channels as DReaM? 

 

Many thanks  in advance!


Re: DRM decoder on FDM program

Zacharias Liangas
 

thanx


Re: DRM decoder on FDM program

Chris Mackerell
 

Yes.

On 2020-04-22 22:14, Zacharias Liangas via groups.io wrote:
Hmm  let me clarify much better my question:
DRM mode transmission can support up to 4 channels
Does FDM ahve the options to select say the second or the third of the sub streams as DREaM sotfware does? 
I once used it to listen to the VId bharati service that is  the second from AIR on 7550


Re: DRM decoder on FDM program

Zacharias Liangas
 
Edited

Hmm  let me clarify much better my question because it was too ambiguous leading to wrong assumptions!
DRM mode transmission can theoretically  support up to 4 channels
Does FDM have the option to select say the second or the third of the sub streams as DREaM sotfware does by clicking to the subchannel ? 
I once used it to listen to the Vid Bharati(?) the second service from AIR on 7550 with DReaM of course! The audio quality however was very bad if not muffled.
https://www.dropbox.com/s/4r8x94ztr7fcc8j/Clipboard04.jpg?dl=0 Dream Screenshot that shows the 4 channels to select one
Hope that it solves the misunderstanding!


Re: FDM-S2 upgrade

Henryk Majcher
 

Hi Paul and Mike

Many thanks for directions.
I did some upgrades, unfortunately no success.
Just like You wrote - no upgrade, only full install package 3.027.
Uninstallation v.1.096 and installation new setup 3.027 
and now  my FDM-S2 with SW2 v. 3.027 works.

I don't understand the work via USB WebServer.
1. If I use port 8080 the stream is sernd both way:
my antenna >> FDM-S2 >> Internet >> Web (Web SDR?)
If so - am I as an another station delivering audio stream to WebSDR.net?
2. If I use port1412 - am I able to hear the audio stream from
another SDR receiver connected to WebSDR?

Henryk SP3E
 


Re: DRM decoder on FDM program

Chris Mackerell
 

Thinking about it, if you wanted to decode multiple DRM stations
at once you could probably bypass the Elad DRM decoder completely,
and feed the IF signals from each Elad VRX channel (in 10 kHz b/w AM mode) into a seperate virtual audio cable feeding seperate copies
of the Dream decoder.

I haven't tried this in my shack though.

Cheers, Chris

On 2020-04-22 09:52, Chris Mackerell wrote:
DRM is only available on VRX1, the first Elad FDM-SW2 channel.
If you are listening to a DRM signal with multiple audio
services I'm not sure what happens. I think you can switch
between them (no such signals receivable in NZ at the moment
for me to check). You can record the whole DRM signal as an IQ
recording and play it back multiple times though.
Cheers, Chris
On 2020-04-22 02:04, Zacharias Liangas via groups.io wrote:
Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?
_._,_._,_
--
Chris Mackerell, Sandy Bay-Marahau Road, Marahau
RD 2, Motueka 7197, New Zealand chris@owdjim.gen.nz


Re: DRM decoder on FDM program

Chris Mackerell
 

DRM is only available on VRX1, the first Elad FDM-SW2 channel.

If you are listening to a DRM signal with multiple audio
services I'm not sure what happens. I think you can switch
between them (no such signals receivable in NZ at the moment
for me to check). You can record the whole DRM signal as an IQ
recording and play it back multiple times though.

Cheers, Chris

On 2020-04-22 02:04, Zacharias Liangas via groups.io wrote:
Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?
_._,_._,_
--
Chris Mackerell, Sandy Bay-Marahau Road, Marahau
RD 2, Motueka 7197, New Zealand chris@owdjim.gen.nz


Re: DRM decoder on FDM program

Richard Langley
 

I think DRM only supports two simultaneous audio channels plus a simultaneous data channel. This recent article mentions this:
https://www.radioworld.com/columns-and-views/the-unexplored-benefits-of-digital-radio
-- (Prof.) Richard Langley

-----------------------------------------------------------------------------
| Richard B. Langley E-mail: lang@unb.ca |
| Geodetic Research Laboratory Web: http://gge.unb.ca |
| Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 |
| University of New Brunswick |
| Fredericton, N.B., Canada E3B 5A3 |
| Fredericton? Where's that? See: http://www.fredericton.ca/ |
-----------------------------------------------------------------------------




________________________________________
From: EladSDR@groups.io <EladSDR@groups.io> on behalf of Guido Schotmans via groups.io <guidoschotmans=skynet.be@groups.io>
Sent: April 21, 2020 1:27 PM
To: EladSDR@groups.io
Subject: Re: [EladSDR] DRM decoder on FDM program

✉ External message: Use caution.
I don’t know if it is possible to decode all 4 channels simultaneously. I don’t think it is.

What might be possible is to open more than one Vrx and let them tune to the same DRM signal. It is in that situation probably possible to feed the audio from different channels to different virtual audio cables. I didn’t test this however.

73,

Guido.

Van: EladSDR@groups.io Namens Zacharias Liangas via groups.io
Verzonden: dinsdag 21 april 2020 16:04
Aan: EladSDR@groups.io
Onderwerp: [EladSDR] DRM decoder on FDM program

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


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This email has been checked for viruses by AVG antivirus software.
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Re: Thinking into the next step ...

Guido Schotmans
 

Zacharias,

The Elad is much better concerning handling strong signals.
I don't kwon the performance below 500 kHz but on MW it is very good. Only the Perseus is better.

Maximum bandwidth is 6144 kHz from which about 5 MHz is usable without aliasing.
You can use the Elad with its own FDM-SW2 software but also in SDR Console and many others with the Extio.
DRM can be done without extra licence in the FDM-SW2 software.
Your other question about DRM was answered in a separate mail.

73,

Guido.


Re: DRM decoder on FDM program

George Stein - NJ3H
 

Thanks Bill, Perhaps when you chat with him next you can ask. 

Regards,
George, NJ3H
Redmond, Oregon USA



On Tuesday, April 21, 2020, 8:57:46 AM PDT, Bill Nollman <billct97@...> wrote:


Hi George;

I can take no credit nor do I know as my friend did the screen capture and highlighting (the yellow zoom). I just copied the image from the DXpedition webpage - https://www.bamlog.com/2017pedx.htm

I often use Windows Snipping Tool with very good results for my screen captures or CTRL+ALT+PrtScr followed by Paste (CTRL+V).

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: Tuesday, April 21, 2020 11:30 AM
To: EladSDR@groups.io
Subject: Re: [EladSDR] DRM decoder on FDM program

 

Hi Bill,

 

Hope you all are well. What software did you use for your picture? Great pop-out of the DRM window.

 

Regards,

George, NJ3H

Redmond, Oregon USA

 

 

 

On Tuesday, April 21, 2020, 7:55:17 AM PDT, Bill Nollman <billct97@...> wrote:

 

 

I don’t know if this helps or not but once I received DRM for a DXer who couldn’t get it with another SDR. The screen shot is below.

Maybe the 4 rectangles at the bottom of the DRM pop up indicate 4 possible audio channels? I do not know.

Please re-send your other questions in separate emails. I’d guess email overload is a problem lately for most people who don’t read past the first line or two.

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of Zacharias Liangas via groups.io
Sent: Tuesday, April 21, 2020 10:04 AM
To: EladSDR@groups.io
Subject: [EladSDR] DRM decoder on FDM program

 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


Re: DRM decoder on FDM program

Guido Schotmans
 

I don’t know if it is possible to decode all 4 channels simultaneously. I don’t think it is.

 

What might be possible is to open more than one Vrx and let them tune to the same DRM signal. It is in that situation probably possible to feed the audio from different channels to different virtual audio cables.  I didn’t test this however.

 

73,

 

Guido.

 

Van: EladSDR@groups.io Namens Zacharias Liangas via groups.io
Verzonden: dinsdag 21 april 2020 16:04
Aan: EladSDR@groups.io
Onderwerp: [EladSDR] DRM decoder on FDM program

 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?




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Re: DRM decoder on FDM program

Bill Nollman
 

Hi George;

I can take no credit nor do I know as my friend did the screen capture and highlighting (the yellow zoom). I just copied the image from the DXpedition webpage - https://www.bamlog.com/2017pedx.htm

I often use Windows Snipping Tool with very good results for my screen captures or CTRL+ALT+PrtScr followed by Paste (CTRL+V).

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: Tuesday, April 21, 2020 11:30 AM
To: EladSDR@groups.io
Subject: Re: [EladSDR] DRM decoder on FDM program

 

Hi Bill,

 

Hope you all are well. What software did you use for your picture? Great pop-out of the DRM window.

 

Regards,

George, NJ3H

Redmond, Oregon USA

 

 

 

On Tuesday, April 21, 2020, 7:55:17 AM PDT, Bill Nollman <billct97@...> wrote:

 

 

I don’t know if this helps or not but once I received DRM for a DXer who couldn’t get it with another SDR. The screen shot is below.

Maybe the 4 rectangles at the bottom of the DRM pop up indicate 4 possible audio channels? I do not know.

Please re-send your other questions in separate emails. I’d guess email overload is a problem lately for most people who don’t read past the first line or two.

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of Zacharias Liangas via groups.io
Sent: Tuesday, April 21, 2020 10:04 AM
To: EladSDR@groups.io
Subject: [EladSDR] DRM decoder on FDM program

 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


Re: DRM decoder on FDM program

George Stein - NJ3H
 

Hi Bill,

Hope you all are well. What software did you use for your picture? Great pop-out of the DRM window.

Regards,
George, NJ3H
Redmond, Oregon USA



On Tuesday, April 21, 2020, 7:55:17 AM PDT, Bill Nollman <billct97@...> wrote:


I don’t know if this helps or not but once I received DRM for a DXer who couldn’t get it with another SDR. The screen shot is below.

Maybe the 4 rectangles at the bottom of the DRM pop up indicate 4 possible audio channels? I do not know.

Please re-send your other questions in separate emails. I’d guess email overload is a problem lately for most people who don’t read past the first line or two.

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of Zacharias Liangas via groups.io
Sent: Tuesday, April 21, 2020 10:04 AM
To: EladSDR@groups.io
Subject: [EladSDR] DRM decoder on FDM program

 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


Re: DRM decoder on FDM program

Bill Nollman
 

I don’t know if this helps or not but once I received DRM for a DXer who couldn’t get it with another SDR. The screen shot is below.

Maybe the 4 rectangles at the bottom of the DRM pop up indicate 4 possible audio channels? I do not know.

Please re-send your other questions in separate emails. I’d guess email overload is a problem lately for most people who don’t read past the first line or two.

Bill

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of Zacharias Liangas via groups.io
Sent: Tuesday, April 21, 2020 10:04 AM
To: EladSDR@groups.io
Subject: [EladSDR] DRM decoder on FDM program

 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


DRM decoder on FDM program

Zacharias Liangas
 

Because i see that not all my questions are replied , it is better for me to as each of it separately
DRM mode transmission can support up to 4 channels
Can FDM listen to all these four separately or together ?


Re: ELAD FDM-S2 for sale

Jorge Garzón Gutiérrez <jotagarzon@...>
 

The ELAD FDM-S2 has already been sold. Thank you for your messages.
73!

Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Twitter: @IberiaDX



En lunes, 20 de abril de 2020 16:02:11 CEST, Jorge Garzón Gutiérrez via groups.io <jotagarzon@...> escribió:


Hi,
I have an ELAD FDM -S2 for sale in mint condition, working perfectly including with its USB cable. I ask 300€ for it. Interested can send a private e-mail to: jotagarzon#g ma il (dot) com (changing the # fot 'at').
73's

Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Twitter: @IberiaDX


Re: W8KFJ - SK

KF4VAR
 

I am also saddened greatly.  Dave's videos and  website  helped me quite a bit in understanding SDR. I additionally exchanged several e mails with him, a generous person in sharing what he knew. Sympathy  and Blessings to  the family and friends. He will be missed in the amateur community.

73 & God Bless all
Carr
KF4VAR


Re: W8KFJ - SK

Christoph K. Schweiger
 

I am shocked and saddened. The last email exchange I had with Dave was April 14th when he graciously shared the modifications he made to the ALS-600. Dave will be missed. RIP.

Christoph, NE7EE
Scottsdale, AZ

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