Date   

Re: FDM-DUO Stand A Lone "bug"

Franco Milan
 

On 18/giu/2015, at 11:59, the_shamen@... [elad_sdr_en] <elad_sdr_en@...> wrote:


Additionally,
If I set the radio to anything more > 2.0 watts, It trips the protection circuit in my THP HL-45B
This indicates there is > 5.0 watts coming out of radio. I suspect there is an initial spike.
I do not have the equipment to verify this.

Dave


I do not not observe any spike, also because the power output is directed modulated without any ALC.

Assuming the modulator saturate to the maximun (digital) full scale and the power output was set to 2W  @(13.8VDC),  it is very improbable that power out reach 5W (more than 3dB over the Settings).

I will check if there is a possibility this can occurs.

73

Franco IU3ADL  




Narrow FM audio clipping?

TimoJ
 

I have recently noticed that narrow band FM audio is clipping. Not sure what SW2 build was the first that had this problem, but it surely wasn't this way at the beginning.

For example I tune to empty band at 27.225Mhz, 10Khz filter bw, audio LoP 5Khz and listen to hissing noise: it's full of audio clipping (cracking sounds). If I turn noise reduction on (at minimum setting) the clipping goes away. Same thing also happens if I reduce audio LoP to 2Khz. Audio spectrum is at -40dB, with noise reduction it drops to -60dB.

It sounds like AGC is amplifying too much, but there is no AGC adjustment in the FM mode. Adjusting normal audio level have no effect. My receiver is FDM-S1.


Re: FDM-DUO Stand A Lone "bug"

daveflack@...
 

I use an SGC tuner that requires at least 3 watts to tune. It would help if this level could be set when the MODE button is used to send a carrier.

Dave


Re: FDM-DUO Stand A Lone "bug"

Franco Milan
 

Bob,


when keyed the microphone without any noise or audio there is no power out from RTX (this is intrinsically on SSB modulation)  so the signals on internal directional coupler inside DUO are very weak. 
This cause errors calculating the SWR that in previous firmware causes the activation of SWR protection, now the protection is disable if instantaneous power output is lower than a threshold.

To avoid these false readings I think is better that we will introduce a firmware modification in future on reading SWR: if power out is not enough to have good reading we will alert the user like ‘ - - -‘ or ‘Lpwr’…

73

Franco IU3ADL



On 18/giu/2015, at 04:08, leschyna@... [elad_sdr_en] <elad_sdr_en@...> wrote:


Not a big deal, but thought I would mention it, as I am curious if anyone else has noticed this.


Using my FDM-Duo in stand alone mode. 


In SSB mode, if I key the microphone without any noise or audio, the SWR indicator will start to move up until it displays High SWR... When I speak into the microphone the SWR is only 1.2:1. The load is a good low SWR, but with no audio, the radio shows an increasingly higher SWR until the rig is modulated. 


Anyone notice this?


73

Bob

VE3UK



 


Re: Airspy at 10 MHz Sampling Rate

Bill Nollman
 

The FDM-S2 is only “deaf” when using a very small antenna like rabbit ears. Using a yagi style FM antenna it is nearly equal to my best analog FM tuner. And of course the benefits of SDR over an analog tuner in some ways far exceed any other limitations. If you add a modern pre-amp (I use a Kitz model specifically for FM) that doesn’t overload the FDM-S2 itself is extremely overload resistant as well.

Bill

 

From: elad_sdr_en@... [mailto:elad_sdr_en@...]
Sent: Thursday, June 18, 2015 2:42 AM
To: elad_sdr_en@...
Subject: Re: [elad_sdr_en] Re: Airspy at 10 MHz Sampling Rate

 

 

Hi Lee,

Considering senstivity only, what about Airpsy vs Elad (both "barefoot") ?

Some people reported the S2 was a bit 'deaf' and needed a preamp for serious FM DX (and to equal the Sony F1HD).
I don't notice any weakness with my unit ... Hence I'm not sure purchasing an Airspy would help digging out more weak stations.

Your comments are appreciated.

 

Best 73

Patrick

 

2015-06-18 0:05 GMT+02:00 Les Rayburn les@... [elad_sdr_en] <elad_sdr_en@...>:

 

As a follow up.

Installed the PCI Express USB 3.0 card, and am now directly interfacing
the Airspy, Elad FDM-S2, and a 4TB external drive off USB3.0. No change
in performance using HDSR. 10 MBS sample rate still yields choppy audio.
However, I was able to install some plug-ins into the latest version of
#SDR Sharp and get it to record 4,095MB files in succession. Everything
works as it should, and plays back well too. Used this extensively today
during the opening to record over 60 files.

The Elad software won't allow it's full 6 MHz bandwidth to be recorded
successfully either (choppy audio).

Still working to improve PC performance in the short term, but it's
clear that the only real answer is to upgrade the hardware. That just
got put at the top of the "to do" list.

Really enjoying both the Elad and the Airspy. It terms of overall
performance for FM DXing, the best software has to be #SDR Sharp. The
ability to use the RDS Data Logger plug-in, and RDS Spy--combined with
the ability to record 10 MHz I/Q files is tough to beat.

--
73,

Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA

============================== FM DX

Sony XDR-F1HD, Sangean HDT-1, Elad FDM-S2, AirSpy.
Denon TU-1500RD w/Ray Dees RDS Decoder,
FM6 Antenna with CM7777 Mast Pre-Amp, RG-11.

"Nothing but blues and Elvis and somebody else's
favorite song..."

AM DX
Elad FDM-S2, Wellbrook ALA1530+ Loop, Clifton Labs Active
Whip, Superloop. Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector




--

 

My YouTube Channel : Mainly SDR stuff & radio-related  

Feel free to join, share & comment !

 

Patrick, french Alps.


Re: FDM-DUO Stand A Lone "bug"

N8OXC
 

Same here as well...


Re: FDM-DUO Stand A Lone "bug"

the_shamen@...
 

Also noted here,
I understood the latest firmware should have had a "partial" fix.

Side note...
When I thought I may have an antenna issue I tested it into a reasonably good Load.
I found it is power dependant, lower power gave more erroneous reading.
Then I noticed that the power output of the FDM-DUO is not consistent at lower levels than 5 watt.
I noticed up to 40-50% lower power output than indicated, band dependant.

Additionally,
If I set the radio to anything more > 2.0 watts, It trips the protection circuit in my THP HL-45B
This indicates there is > 5.0 watts coming out of radio. I suspect there is an initial spike.
I do not have the equipment to verify this.

Dave


Re: Airspy at 10 MHz Sampling Rate

Patrick <aunumero73@...>
 

Hi Lee,

Considering senstivity only, what about Airpsy vs Elad (both "barefoot") ?
Some people reported the S2 was a bit 'deaf' and needed a preamp for serious FM DX (and to equal the Sony F1HD).
I don't notice any weakness with my unit ... Hence I'm not sure purchasing an Airspy would help digging out more weak stations.

Your comments are appreciated.

Best 73
Patrick



2015-06-18 0:05 GMT+02:00 Les Rayburn les@... [elad_sdr_en] <elad_sdr_en@...>:

 

As a follow up.

Installed the PCI Express USB 3.0 card, and am now directly interfacing
the Airspy, Elad FDM-S2, and a 4TB external drive off USB3.0. No change
in performance using HDSR. 10 MBS sample rate still yields choppy audio.
However, I was able to install some plug-ins into the latest version of
#SDR Sharp and get it to record 4,095MB files in succession. Everything
works as it should, and plays back well too. Used this extensively today
during the opening to record over 60 files.

The Elad software won't allow it's full 6 MHz bandwidth to be recorded
successfully either (choppy audio).

Still working to improve PC performance in the short term, but it's
clear that the only real answer is to upgrade the hardware. That just
got put at the top of the "to do" list.

Really enjoying both the Elad and the Airspy. It terms of overall
performance for FM DXing, the best software has to be #SDR Sharp. The
ability to use the RDS Data Logger plug-in, and RDS Spy--combined with
the ability to record 10 MHz I/Q files is tough to beat.

--
73,

Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA

============================== FM DX

Sony XDR-F1HD, Sangean HDT-1, Elad FDM-S2, AirSpy.
Denon TU-1500RD w/Ray Dees RDS Decoder,
FM6 Antenna with CM7777 Mast Pre-Amp, RG-11.

"Nothing but blues and Elvis and somebody else's
favorite song..."

AM DX
Elad FDM-S2, Wellbrook ALA1530+ Loop, Clifton Labs Active
Whip, Superloop. Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector




--

My YouTube Channel : Mainly SDR stuff & radio-related  
Feel free to join, share & comment !

Patrick, french Alps.


Re: FDM-DUO Stand A Lone "bug"

Luca De Marinis
 

Yes, it happens to me too not only stand alone but also connected to the PC

Luca - W6LDM


Re: [WTFDA] Re: Airspy at 10 MHz Sampling Rate

Bill Nollman
 

Les;

For external USB HDD's you should enable write caching (not the default).
Go into Device Manager.
Expand the Disk Drives.
Right click on your USB HDD(s).
Go to Properties.
Policies Tab.
Select "Better Performance" / OK.
Close all windows and try again.

Bill

-----Original Message-----
From: wtfda@googlegroups.com [mailto:wtfda@googlegroups.com] On Behalf Of Les Rayburn
Sent: Wednesday, June 17, 2015 6:06 PM
To: airspy@yahoogroups.co.uk; SDRSharp@yahoogroups.co.uk; wtfda@googlegroups.com; elad_sdr_en@yahoogroups.com
Subject: [WTFDA] Re: Airspy at 10 MHz Sampling Rate

As a follow up.

Installed the PCI Express USB 3.0 card, and am now directly interfacing the Airspy, Elad FDM-S2, and a 4TB external drive off USB3.0. No change in performance using HDSR. 10 MBS sample rate still yields choppy audio.
However, I was able to install some plug-ins into the latest version of #SDR Sharp and get it to record 4,095MB files in succession. Everything works as it should, and plays back well too. Used this extensively today during the opening to record over 60 files.

The Elad software won't allow it's full 6 MHz bandwidth to be recorded successfully either (choppy audio).

Still working to improve PC performance in the short term, but it's clear that the only real answer is to upgrade the hardware. That just got put at the top of the "to do" list.

Really enjoying both the Elad and the Airspy. It terms of overall performance for FM DXing, the best software has to be #SDR Sharp. The ability to use the RDS Data Logger plug-in, and RDS Spy--combined with the ability to record 10 MHz I/Q files is tough to beat.



--
73,


Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA

============================== FM DX

Sony XDR-F1HD, Sangean HDT-1, Elad FDM-S2, AirSpy.
Denon TU-1500RD w/Ray Dees RDS Decoder,
FM6 Antenna with CM7777 Mast Pre-Amp, RG-11.

"Nothing but blues and Elvis and somebody else's
favorite song..."

AM DX
Elad FDM-S2, Wellbrook ALA1530+ Loop, Clifton Labs Active
Whip, Superloop. Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector

--
Website: http://www.wtfda.org, Forums: http://forums.wtfda.org, US/CAN/MEX FM Database: http://db.wtfda.org
WTFDA Facebook Group: https://www.facebook.com/groups/175722809234221/
---
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To unsubscribe from this group and stop receiving emails from it, send an email to wtfda+unsubscribe@googlegroups.com.
To post to this group, send email to wtfda@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.


FDM-DUO Stand A Lone "bug"

antennacrafter
 

Not a big deal, but thought I would mention it, as I am curious if anyone else has noticed this.


Using my FDM-Duo in stand alone mode. 


In SSB mode, if I key the microphone without any noise or audio, the SWR indicator will start to move up until it displays High SWR... When I speak into the microphone the SWR is only 1.2:1. The load is a good low SWR, but with no audio, the radio shows an increasingly higher SWR until the rig is modulated. 


Anyone notice this?


73

Bob

VE3UK


Re: Airspy at 10 MHz Sampling Rate

Les Rayburn
 

As a follow up.

Installed the PCI Express USB 3.0 card, and am now directly interfacing the Airspy, Elad FDM-S2, and a 4TB external drive off USB3.0. No change in performance using HDSR. 10 MBS sample rate still yields choppy audio. However, I was able to install some plug-ins into the latest version of #SDR Sharp and get it to record 4,095MB files in succession. Everything works as it should, and plays back well too. Used this extensively today during the opening to record over 60 files.

The Elad software won't allow it's full 6 MHz bandwidth to be recorded successfully either (choppy audio).

Still working to improve PC performance in the short term, but it's clear that the only real answer is to upgrade the hardware. That just got put at the top of the "to do" list.

Really enjoying both the Elad and the Airspy. It terms of overall performance for FM DXing, the best software has to be #SDR Sharp. The ability to use the RDS Data Logger plug-in, and RDS Spy--combined with the ability to record 10 MHz I/Q files is tough to beat.



--
73,


Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA

============================== FM DX

Sony XDR-F1HD, Sangean HDT-1, Elad FDM-S2, AirSpy.
Denon TU-1500RD w/Ray Dees RDS Decoder,
FM6 Antenna with CM7777 Mast Pre-Amp, RG-11.

"Nothing but blues and Elvis and somebody else's
favorite song..."

AM DX
Elad FDM-S2, Wellbrook ALA1530+ Loop, Clifton Labs Active
Whip, Superloop. Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector


Re: Here is a shared file for IARU band plan in SW2

Barry Williams <ba.williams@...>
 

Both of my SDRs are made in Italy, my antenna is made in England, and I use 3 SDR programs written in Italy. I won't waste a minute worrying what country they are from, and I love all of my stuff. Where would we be in the USA if not for the SDR revolution mostly coming out of Italy? I think this demonstrates that the "what the USA does" viewpoint is incorrect.

My favorite SDR software uses the "," standard for some functions. All station and frequency lists have to be converted to commas before importing. Let's keep what seems to be the overwhelming standard and save unnecessary conversion work.



Barry




On 6/17/15 1:01 PM, 'Andreas Rehberg' arehberg@... [elad_sdr_en] wrote:
 

On 6/17/2015 2:24 PM, 'H.F.P. Pit (PH5HP was PD5DP)' henkpit@... [elad_sdr_en] wrote:
 
Just wondering why we always have to do what the USA does?

My suggestion was to do what all the scientific world does... in all branches of the
scientific world the decimal separator is the point, not the comma....

 
--
73 Alberto I2PHD
Credo Ut Intelligam





FDM-DUO SETTINGS.

nn3v@...
 

Reference FDM-DUO SW2 Users manual rev 1.0. Page 18, section 3.2 "tuning Tab".

The manual says:

QUOTE

The “Tuning” tab allows the user to customize the frequency span of the “Middle” and “Band” (lower) tuning bars and the keyboard shortcuts configuration.

UNQUOTE.

No other things are stated.

How does this work?

I tried various changes in the display that appears when selecting "Set" on the radio display task bar. Nothing changed even after commanding "Apply" in lower right hand corner.

The displayed bands did not change, and when I went back to verify the changes I had set in, I found the settings reverted to the defaults originally set.



Re: Here is a shared file for IARU band plan in SW2

Alberto I2PHD
 

On 6/17/2015 8:01 PM, 'Andreas Rehberg' arehberg@... [elad_sdr_en] wrote:

well, as always there're exceptions from this rule.. in Germany the ',' is still predominantly used..

In Italy, the comma as decimal separator is used by the bankers, and in all the commerce environment.
But when I was at the University, had I used a comma as decimal separator during an examination, most
probably the professor would have said me to return in the next examinations session, as I had failed
this one...� :-)

--
73 Alberto I2PHD
Credo Ut Intelligam






Re: SW2, V1.96: D-RES

Franco Milan
 

Yes Richard,

it is what we are working on.

73, Franco

On 17/giu/2015, at 17:02, 'Richard B. Langley' lang@unb.ca [elad_sdr_en] <elad_sdr_en@yahoogroups.com> wrote:

This is great news! Will it be possible to have a command to retrieve higher-resolution signal-strength readings (better than just the single-digit S-meter values)?
Thanks.
-- Richard Langley

On Wednesday, June 17, 2015, 168, at 11:18 AM, 'team_elad@yahoo.it' team_elad@yahoo.it [elad_sdr_en] wrote:



Joerg,

from this release there will be active a TCP server for receiving CAT commands on SW2.
This will help some requests that needs to remote set and get data from external applications instead of using CAT with virtual serial port.
New Server will receive a similar command set of the FDM-DUO (Kenwood) CAT protocol but based on TCP messages.
On release 1.96 there are only few commands available like FA00010000000; that set the frequency of center frequency to 10MHz.
If somebody wants to try, can use a Hercules TCP client (http://www.hw-group.com/products/hercules/index_en.html) and try to send the command FA…
As soon as some commands will be ready we will document.

73

Franco IU3ADL



On 17/giu/2015, at 09:53, dl2vl@arcor.de [elad_sdr_en] <elad_sdr_en@yahoogroups.com> wrote:

Hello Franco,

would you please explain, how is the new TCP Server to set up. Is this in exchange for the usb web server?

Thanks!
Joerg, DL2VL


-----------------------------------------------------------------------------
| 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 Fax: +1 506 453-4943 |
| Fredericton, N.B., Canada E3B 5A3 |
| Fredericton? Where's that? See: http://www.fredericton.ca/ |
-----------------------------------------------------------------------------



------------------------------------

------------------------------------


------------------------------------

Yahoo Groups Links



Re: Here is a shared file for IARU band plan in SW2

Andreas Rehberg
 

well, as always there're exceptions from this rule.. in Germany the ',' is still predominantly used..
(as my MSEE is somewhat older I did just a brief check of scripts of some universities, only physics
is somewhat divided.. but the other sciences go for the ',' anyway - this can't be solved here..
so a choice could make everybody happy :-)
 
73, Andy, DF4WC
Bene docet, qui bene distinguit
Gesendet: Mittwoch, 17. Juni 2015 um 18:06 Uhr
Von: "Alberto I2PHD i2phd@... [elad_sdr_en]"
An: elad_sdr_en@...
Betreff: [elad_sdr_en] Re: Here is a shared file for IARU band plan in SW2
 

 

On 6/17/2015 2:24 PM, 'H.F.P. Pit (PH5HP was PD5DP)' henkpit@... [elad_sdr_en] wrote:
 
Just wondering why we always have to do what the USA does?

My suggestion was to do what all the scientific world does... in all branches of the
scientific world the decimal separator is the point, not the comma....

 
--
73 Alberto I2PHD
Credo Ut Intelligam




 
 
Avast logo

This email has been checked for viruses by Avast antivirus software.
www.avast.com

 

 


Re: Here is a shared file for IARU band plan in SW2

Alberto I2PHD
 

On 6/17/2015 2:24 PM, 'H.F.P. Pit (PH5HP was PD5DP)' henkpit@... [elad_sdr_en] wrote:

Just wondering why we always have to do what the USA does?

My suggestion was to do what all the scientific world does... in all branches of the
scientific world the decimal separator is the point, not the comma....


--
73 Alberto I2PHD
Credo Ut Intelligam







FDM-DUOCW Transmit Key Settings

nn3v@...
 

Hi All.

I will be using a Begali Stradivarious paddle for CW transmitting. Plan on using it for approximately 25 WPM.

I am interested to learn the CW key/paddle and keyer settings used by anyone who is actively using the radio for CW transmission.

Please cite Menu number and Menu setting you are using.

73 de NN3V



Re: SW2, V1.96: D-RES

Richard Langley
 

This is great news! Will it be possible to have a command to retrieve higher-resolution signal-strength readings (better than just the single-digit S-meter values)?
Thanks.
-- Richard Langley

On Wednesday, June 17, 2015, 168, at 11:18 AM, 'team_elad@yahoo.it' team_elad@yahoo.it [elad_sdr_en] wrote:



Joerg,

from this release there will be active a TCP server for receiving CAT commands on SW2.
This will help some requests that needs to remote set and get data from external applications instead of using CAT with virtual serial port.
New Server will receive a similar command set of the FDM-DUO (Kenwood) CAT protocol but based on TCP messages.
On release 1.96 there are only few commands available like FA00010000000; that set the frequency of center frequency to 10MHz.
If somebody wants to try, can use a Hercules TCP client (http://www.hw-group.com/products/hercules/index_en.html) and try to send the command FA…
As soon as some commands will be ready we will document.

73

Franco IU3ADL



On 17/giu/2015, at 09:53, dl2vl@arcor.de [elad_sdr_en] <elad_sdr_en@yahoogroups.com> wrote:

Hello Franco,

would you please explain, how is the new TCP Server to set up. Is this in exchange for the usb web server?

Thanks!
Joerg, DL2VL


-----------------------------------------------------------------------------
| 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 Fax: +1 506 453-4943 |
| Fredericton, N.B., Canada E3B 5A3 |
| Fredericton? Where's that? See: http://www.fredericton.ca/ |
-----------------------------------------------------------------------------

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