Date   
Re: new Beta FDM-SW2 1.150Beta released

runahue@...
 

Happy New year 2017 :-D

A lot of thank's for this new release.

I have been testing and:
* IF Spectrum Window continues not saving its position when using 2 monitors.
* Omnirig and its Split option is running now really fine for me. Great Great Great !!!

Are you having the same problems with IF Spectrum Window?

I saved a profile but the problem continues.

Have a nive end of year.

73 de EA5BZ

Re: To the ELAD Team

Franco Milan
 

Will be done in next revision, I forgot … sorry

Franco IU3ADL

On 31 Dec 2016, at 13:38, ea7hj@... [elad_sdr_en] <elad_sdr_en@...> wrote:


How useful is reporting the faults in the forum ?. 

NOT AT ALL. 


I have announced in the forum a long time ago that the SNAP option that has its option line in the XML file () is not archived when you close the program. 

After several revisions of the Software everything remains the same. 

If you manually activate it in the XML file () it resets to "0" when you close the program. 

I do not understand after several revisions how this simple bug to correct has not been solved. 

I want to get to the Team my discomfort for not attending to the failures that the users announced.


ea7hj




To the ELAD Team

A.
 

How useful is reporting the faults in the forum ?.

NOT AT ALL.


I have announced in the forum a long time ago that the SNAP option that has its option line in the XML file (<UseStepSnapF0 value = "0" />) is not archived when you close the program.

After several revisions of the Software everything remains the same.

If you manually activate it in the XML file (<UseStepSnapF0 value = "1" />) it resets to "0" when you close the program.

I do not understand after several revisions how this simple bug to correct has not been solved.

I want to get to the Team my discomfort for not attending to the failures that the users announced.


ea7hj


Re: new Beta FDM-SW2 1.150Beta released

John Kirby
 


Big BIG! thanks 'team-elad' 
Ham at 16 (1956) and
FDM DUO is my best radio ever
and only gets better!

Fantastic New Year to 'all you all' !
John
N3AAZ

WINLOG32

R GRAYSTOCK
 

Hello folks. I have been trying to get my Duo to exchange data with WINLOG32 with no success.

Winlog does not communicate with the Duo. I am using VSPE but I must be missing something

in the setup. If anybody is successfully using this combination I would  be greatfull for any

information regarding the setup config. 

Regards Bob G G4WHX

Re: FDM-Duo-r, bandpass filter configuration

Christof Proft
 

Hi Franco,

it is only a cosmetic problem. The unused slots are disabled, but the old filter values are still shown in the frequency configuration. I have no chance to reset them to "0" for better clarity of the chart.

All is working well, filters are switched as selected in the configuration.

vy73
Chris

Re: FDM-Duo-r, bandpass filter configuration

Franco Milan
 

Hi Chris,


I hope I understood well your question.
If you disable the filters with DUO Manager it is enough, they should not be switched.
Remember that the firmware follow the sequence of enabled filter as you can see in the setting page:
if a frequency tuned is in the frequency range is met, then that filter is selected and do not proceed to the next row.

73, Franco IU3ADL


On 30 Dec 2016, at 16:34, Christof Proft christof.proft@... [elad_sdr_en] <elad_sdr_en@...> wrote:

Hello,

I bought several bandpass filters for my FDM-Duo-r and changed the whole 
slot configuration by installing these.
Now, I got two empty filter slots in the "middle", where the factory 
installed 1700kHz bypass and the passthrough filters have been. These 
slots will be stuffed with self-made filters for the "middle" bands one 
day, PCB are here.

I deactivated the slots and set the values to "zero" by typing in "0", 
but after reloading the old values appeared again. With filter bank 
switched on, the system doesn't accept "0" for lower and upper values.

How can I reset the empty banks to "zero". Any hints are welcomed.

Thanks in advance.

vy73
chris


Re: AM TX performance of FDM-Duo?

Franco Milan
 

Hello Darwin and sjburnz76,

with FDM-DUO in stand alone mode, you can reach about 100%  AM modulation symmetrical.
The modulation is made by an internal IQ modulator starting from a Real signal from MIC or USB, but you can also make any modulation you want if you use your own I/Q generating software using a PCsetting the DUO to I/Q modulation and feeding properly the modulator.

73, Franco IU3ADL


On 30 Dec 2016, at 17:06, Darwin Lambeth darwinlambeth@... [elad_sdr_en] <elad_sdr_en@...> wrote:


Bump, I am interested in an answer to this as well. :)


On Thursday, December 29, 2016 3:21 PM, "sjburnz76@... [elad_sdr_en]" <elad_sdr_en@...> wrote:


 
Hello all,

I'm currently looking at either an Apache Labs ANAN-10e or an Elad FDM Duo. I like the FDM Duo because of the ability to use the SDR as a stand-alone as well. 

I know the ANAN-10e (from reading forum posts and watching youtube videos) has extremely good AM transmit performance (no problems reaching 100% modulation, and with proper carrier reduction can even achieve clean Asymmetrical Modulation). 

My question is how is the AM TX performance of the FDM-Duo? I found an old post on this group where a user was having trouble achieving 100% modulation but subsequent messages indicated a firmware patch was released which fixed this. Can anyone give any first hand feedback for AM TX performance? Can you reach 100% modulation comfortably or even manage some asymmetric (125% positive, 99% negative for instance) modulation? 

On non-SDR HF rigs, the ALC is usually very troublesome for AM TX. Resulting waveforms often look very strange, creating wavelets and backwards swing on watt meters/S meters when anything close to 100% is approached. I believe SDR transceivers use different mechanisms for controlling AM power and envelope when transmitting... 

Thanks for any info! 
73







Re: AM TX performance of FDM-Duo?

Darwin Lambeth
 

Bump, I am interested in an answer to this as well. :)


On Thursday, December 29, 2016 3:21 PM, "sjburnz76@... [elad_sdr_en]" wrote:


 
Hello all,

I'm currently looking at either an Apache Labs ANAN-10e or an Elad FDM Duo. I like the FDM Duo because of the ability to use the SDR as a stand-alone as well.

I know the ANAN-10e (from reading forum posts and watching youtube videos) has extremely good AM transmit performance (no problems reaching 100% modulation, and with proper carrier reduction can even achieve clean Asymmetrical Modulation).

My question is how is the AM TX performance of the FDM-Duo? I found an old post on this group where a user was having trouble achieving 100% modulation but subsequent messages indicated a firmware patch was released which fixed this. Can anyone give any first hand feedback for AM TX performance? Can you reach 100% modulation comfortably or even manage some asymmetric (125% positive, 99% negative for instance) modulation?

On non-SDR HF rigs, the ALC is usually very troublesome for AM TX. Resulting waveforms often look very strange, creating wavelets and backwards swing on watt meters/S meters when anything close to 100% is approached. I believe SDR transceivers use different mechanisms for controlling AM power and envelope when transmitting...

Thanks for any info!
73





FDM-Duo-r, bandpass filter configuration

Christof Proft
 

Hello,

I bought several bandpass filters for my FDM-Duo-r and changed the whole slot configuration by installing these.
Now, I got two empty filter slots in the "middle", where the factory installed 1700kHz bypass and the passthrough filters have been. These slots will be stuffed with self-made filters for the "middle" bands one day, PCB are here.

I deactivated the slots and set the values to "zero" by typing in "0", but after reloading the old values appeared again. With filter bank switched on, the system doesn't accept "0" for lower and upper values.

How can I reset the empty banks to "zero". Any hints are welcomed.

Thanks in advance.

vy73
chris

new Beta FDM-SW2 1.150Beta released

Franco Milan
 

Hi all,

just published new FDM-SW2 1.150Beta version  here http://sdr.eladit.com/FDM-sw2%20Software/index.php?lang=EN:

1- some improvements on Profile settings, we are still working on this part. I want to remember that if will find an issue on this version, first try to save a profile and relaunch the program, or try to recover factory settings deleting .xml files on Document/Elad/FDM-SW2 folder.

2- this release introduce new Websocket server allowing Html pages to remote control the FDM-SW2. The messages are the same of CAT command.
The file client_test_websocket.html.txt (please rename to client_test_websocket.html after download) is an example how to send a command. 
The websocket server for now is important for developers, in future we will prepare some interesting web pages for remotely control the FDM-SW2.

3- some changes on Omnirig commands in SPLIT mode.

A happy ending 2016 and my best wishes for a fantastic 2017!!   

Franco IU3ADL    

Re: FDM-SW2 tuning via mousewheel

n2msqrp
 

Tony,


I want to tune the radio with the mouse wheel.


My mouse has extra controls so I tired another mouse with the basic controls and it is working.


Thanks to all for confirming the operation.


Mike N2MS

 

On December 29, 2016 at 9:29 PM "Anthony Casorso canthony15@... [elad_sdr_en]" <elad_sdr_en@...> wrote:

 

 

I thought he was asking about changing the step size using the mouse wheel, not tuning the radio. 


Tony




From: elad_sdr_en@... <elad_sdr_en@...> on behalf of Neil neil@... [elad_sdr_en] <elad_sdr_en@...>
Sent: Thursday, December 29, 2016 4:43 PM
To: elad_sdr_en@...
Subject: Re: [elad_sdr_en] Re: FDM-SW2 tuning via mousewheel
 
 

 

I also use the mouse wheel for tuning, I don't think I did anything to make it happen.

Neil G4DBN


Re: FDM-SW2 tuning via mousewheel

Tony_AD0VC
 

I thought he was asking about changing the step size using the mouse wheel, not tuning the radio. 


Tony




From: elad_sdr_en@... on behalf of Neil neil@... [elad_sdr_en]
Sent: Thursday, December 29, 2016 4:43 PM
To: elad_sdr_en@...
Subject: Re: [elad_sdr_en] Re: FDM-SW2 tuning via mousewheel
 
 

I also use the mouse wheel for tuning, I don't think I did anything to make it happen.

Neil G4DBN


On 29/12/2016 21:15, daiche@... [elad_sdr_en] wrote:
 

Hi Michael,


I use the SW2 with a mouse wheel with no trouble at all. I don't remember having to do anything special to get it to work.
.





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Re: FDM-SW2 tuning via mousewheel

Neil Smith G4DBN
 

I also use the mouse wheel for tuning, I don't think I did anything to make it happen.

Neil G4DBN


On 29/12/2016 21:15, daiche@... [elad_sdr_en] wrote:
 

Hi Michael,


I use the SW2 with a mouse wheel with no trouble at all. I don't remember having to do anything special to get it to work.
.





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AM TX performance of FDM-Duo?

James Burns
 

Hello all,

I'm currently looking at either an Apache Labs ANAN-10e or an Elad FDM Duo. I like the FDM Duo because of the ability to use the SDR as a stand-alone as well.

I know the ANAN-10e (from reading forum posts and watching youtube videos) has extremely good AM transmit performance (no problems reaching 100% modulation, and with proper carrier reduction can even achieve clean Asymmetrical Modulation).

My question is how is the AM TX performance of the FDM-Duo? I found an old post on this group where a user was having trouble achieving 100% modulation but subsequent messages indicated a firmware patch was released which fixed this. Can anyone give any first hand feedback for AM TX performance? Can you reach 100% modulation comfortably or even manage some asymmetric (125% positive, 99% negative for instance) modulation?

On non-SDR HF rigs, the ALC is usually very troublesome for AM TX. Resulting waveforms often look very strange, creating wavelets and backwards swing on watt meters/S meters when anything close to 100% is approached. I believe SDR transceivers use different mechanisms for controlling AM power and envelope when transmitting...

Thanks for any info!
73



Re: FDM-SW2 tuning via mousewheel

daiche
 

Hi Michael,

I use the SW2 with a mouse wheel with no trouble at all. I don't remember having to do anything special to get it to work. You will have to use the arrows or menu to set your step size. Mine is 10 Khz usually, although I switch to 9 and 5 Khz on occasion. I will look at my settings to see if there was something to set, but I don't remember having to change anything for mouse wheel operation.

Regards,

Dave Aichelman     N7NZH     Grants Pass, Oregon

FDM-SW2 tuning via mousewheel

n2msqrp
 

I am using FDM-SW2 with my FDM-S2.


Is there a way to tune the step frequency with he mouse wheel instead of the < > keys? It would be more convenient.


FDM-SW2 version is 1.147beta.


73 Mike N2MS


FDM-S2 frequency is shifted

Ron Hunsicker
 

Obsessing over parts per million

 

The frequency read-out on the Elad FDMm-S2 is often several tens of Hertz greater than what the stations are advertising.  Curious about that, I compared the read-out from the Elad to the several WWV and CHU frequencies.  Since the Elad has a separate window that provides a continuous, real time IF snapshot and this window can be enlarged almost infinitely, it is easy to estimate what the Elad thinks the frequency is compared to what the National Institute of Standards and Technology and Dominion Observatory believe. 

 

Because the Elad’s function is partially sound card driven, after the first set of offsets was estimated, I measured the offset of the soundcard native frequency again, made a considerable adjustment to the offset in the Elad software, and took the measurements again.  This is what I found:

 

Frequency

First measurement

Deviation

x 10-6

After changing the offset

3330

-25 Hz

7.5

-20 Hz

5000

-35 Hz

7.0

 

7850

-50 Hz

6.4

-50 Hz

10000

-65 Hz

6.5

-65 Hz

15000

-95 Hz

6.33

-95 Hz

20000

-125 Hz

6.25

 

(A minus sign indicates that the actual frequency is less than the indicated frequency.)

 

Proportionally, the deviation does not change much as frequency changes.  As, however, the frequency increases, the absolute amount of the deviation does increase.

 

(Relatively) large changes in the offset of the sound card did not appreciably affect the accuracy of the measurement of frequency.

 

Note that the deviation is 6 parts in a million!  Put that into the perspective of your last slide rule dial (or slide rule!):  A slide rule is good for one part in 10,000 and men went to the moon using slide rules!  When I had a slide rule dial, I was pleased if I knew the frequency to the nearest 100 KHz—at 7 MHz, one part in 70.  Now I find myself obsessing over a few tens of Hertz!

Re: FDM-S2 frequency is shifted

Neil Smith G4DBN
 

On 28/12/2016 22:55, Harris Leck vk6av@... [elad_sdr_en] wrote:
 
Neil, would you describe your DUO/Rubidium clock/GPSDO setup in a little more detail please?
Harris K9RJ

Hi Harris, I have an Efratom 10MHz Rubidium standard I found on ebay, it runs 24/7 on a Meanwell switchmode PSU, which feeds a pair of 12V 4AH gel-cells and a low-drop-out 24V regulator.  The Meanwell is set to 28.4V to keep the gel-cells in top condition.  The output of the Efratom is fed to 8 port and 4 port distribution amplifiers from http://huprf.com.

In the same rackmount chassis, I have a 10MHz Morion MV89A double-ovened OCXO, which I can switch to if the Rubidium source ever dies.  That is encased in two inches of polystyrene foam, along with a 22-turn trimpot and series resistors, which are all glued to the case of the Morion to keep them at a constant temp.

I also have a G3RUH 10MHz GPSDO, which uses an external GPS powered antenna up on the roof.

I have an AD8302 monitoring the output levels and phase difference between the GPSDO output and the Efratom, and a second AD8302 looking at the difference between the GPSDO and the Morion.  Those drive simple analogue meters at present.

I feed the sinewave 10MHz from the Efratom/DA to both of my DUOs through SMA 6dB attenuators, and to both spectrum analysers, the 20GHz Racal frequency counter, my 3GHz HP signal genny, the 2m, 23cm and 13cm transverters and to a set of ADF4531 synth LOs for the pair of 144MHz G4DDK Anglian transverters I use for SHF IFs into the DUOs.  The 4351 LOs run at 2556MHz for 3cm and at the fundamental for 9cm, and I have others for 70cm and 4m.

Also in the frequency standard chassis is a Valpey-Fisher 100MHz OCXO.   I am just working on a PLL board to keep that locked to the 10MHz Rb source, using an ECL /20 prescaler, and a single-gate SOT23 XOR chip.  The 10MHz Rb ref feeds a comparator and a /2 divider into the other input of the XOR.  The output is filtered and has a time-constant of around 5 seconds.  I will need to build another 4-port distribution amp for that, it will be used to lock some SHF local oscillators based on a set of YIGs for 3GHz up to 26.5GHz fundamental, to give me stable low-noise sources for 24GHz, 47GHz, 76GHz and higher, but that's another story.

The key elements for locking the DUO are just the Efratom and the DA.  I have been measuring the stability of this free-running MV89A against the long-term ref of the G3RUH GPSDO and it is stunningly good. 

I used the MV89A to generate a test signal from an ADF4351 pll chip on 2,300,000,000.0Hz, after the Morion had been running for a week.  Receiving that on the DUO and the locked transverters, after a careful check of the Efratom calibration, there was less than 3Hz difference.  That is about 0.02Hz off on 20m, which I think is good enough, especially as the DUO only does 1Hz steps....

For the fine calibration of the Efraton and MV89As, I am looking at a beat frequency of less than 1mHz, or a phase shift of less than 18 degrees per minute, so the 3802s and a high-stability voltmeter are  needed, or a dual-beam scope and a lot of patience.

Once I have the 100MHz OCXO locking circuit finished, I am going to make a new GPSDO based on a UBlox LEA-M8F with Galileo support and proper direct integration with an MV89A. I'll also run the AD8302 boards into a PIC with A/D and Flash to monitor the long-term stability and variance, with USB monitoring.  Next will be another full frequency standard for my motorhome, with a Ublox, MV89A and this PTI 100MHz OCXO

This is the board for the 100MHz OCXO PLL I am just about to etch.  It is just over two inches long

If I wasn't so totally obsessive about frequency precision, I would just use the MV89A in a block of foam and set that to zero beat with a decent standard frequency transmission. It is never more than about 12Hz out at 10GHz, so really the Efratom is a bit redundant.  I guess I just liked the idea of having that Rubidium thing running here in my lab racks.

Neil G4DBN




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Re: FDM-S2 frequency is shifted [1 Attachment]

Harris Leck
 

Neil, would you describe your DUO/Rubidium clock/GPSDO setup in a little more detail please?
Harris K9RJ

From Harris' phone

On Dec 28, 2016, at 08:00, Neil neil@... [elad_sdr_en] <elad_sdr_en@...> wrote:

 

Hi, sorry, I don't have an S2, but in the SW2 manual it says:

On the DUO, the setting is done from the menu.  My DUO is locked to a Rubidium clock which is calibrated against a GPSDO, but when I set the clock offset, I can get it within 1-2Hz and it stays there very accurately.  I never turn my main DUO off though, not sure how accurate it would be after a coll-down and restart cycle.

Neil G4DBN





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