Date   

Re: FDM-SW2 system requirements

Marc Pilotte
 

Sorry for the typos!!!

On Mon, Nov 11, 2019 at 8:29 AM Marc Pilotte via Groups.Io <wb9dbd=gmail.com@groups.io> wrote:
While assisting Franco in our ELAD booth several years back at the first Xenia/Dayton hamfest....their was a used computer dealer, Erik from Select Computer Resources selling many older, but adequate, DELL, and other computers. I asked Franco to pick one out that would work w/my DUO. His pick was smolders DELL w/an i5 chip and 4 gb of RAM, and windows 7.  He took it back to his room and set it up for me and loaded the most current version of SW2 software. He brought it back the next day and advised me it ran fine on 4 gb of RAM. I later insty4 additional gb of RAM, and switched out the old HD with a SSD. Then I made a grave mistake. I deleted the windows 7 and put in 10. BIG MISTAKE!! I can’t run WSPR 
software! 

Here’s the best part. I just called Erik and he told me he would convert the system back to windows 7, AND put all the current info back on it. Not only that... he will load the old drive with all the info on it so it will be a 100% back up. Cost? <$50.00! if you need a computer to run your ELAD equipment, look no further than Erik! He WILL treat you right!
de WB9DBD 
Marc, Franklin, GA.
Ps.. I am not worried about the no update crap for 7.. I’m planning on te-installing eSET to take care of protection. window 10....👎🏻👎🏻

On Mon, Nov 11, 2019 at 8:12 AM David via Groups.Io <david.g8iic=btinternet.com@groups.io> wrote:
Currently running an FDM-DUO (and DUO-ART 120) with a 10-year old Sony laptop. No digital modes at present.  Laptop has Pentium T4200 processor and Mobile Intel 4500MHD graphics card and I have had no problems running SW2 software.
With the impending ending of support for Windows 7, I'm intending to buy a new Windows laptop - purely to use in the "shack", which is the house cellar (basement).  I use Macs for all non-ham activities and they are not in the cellar - the only other software run on the cellar laptop is Firefox.  I do not intend to buy a Mac and use Parallels for the shack.

What are the minimum system requirements for a PC for FDM-SW2?  I appreciate that some people run quite sophisticated machines, but I was thinking of just 4GB of RAM with 64-bit Windows 10  and a 128GB SSD.  Any comments on processor?  Any advice welcomed.

Thanks in anticipation.

David  G8IIC


Re: FDM-SW2 system requirements

Marc Pilotte
 

While assisting Franco in our ELAD booth several years back at the first Xenia/Dayton hamfest....their was a used computer dealer, Erik from Select Computer Resources selling many older, but adequate, DELL, and other computers. I asked Franco to pick one out that would work w/my DUO. His pick was smolders DELL w/an i5 chip and 4 gb of RAM, and windows 7.  He took it back to his room and set it up for me and loaded the most current version of SW2 software. He brought it back the next day and advised me it ran fine on 4 gb of RAM. I later insty4 additional gb of RAM, and switched out the old HD with a SSD. Then I made a grave mistake. I deleted the windows 7 and put in 10. BIG MISTAKE!! I can’t run WSPR 
software! 

Here’s the best part. I just called Erik and he told me he would convert the system back to windows 7, AND put all the current info back on it. Not only that... he will load the old drive with all the info on it so it will be a 100% back up. Cost? <$50.00! if you need a computer to run your ELAD equipment, look no further than Erik! He WILL treat you right!
de WB9DBD 
Marc, Franklin, GA.
Ps.. I am not worried about the no update crap for 7.. I’m planning on te-installing eSET to take care of protection. window 10....👎🏻👎🏻

On Mon, Nov 11, 2019 at 8:12 AM David via Groups.Io <david.g8iic=btinternet.com@groups.io> wrote:
Currently running an FDM-DUO (and DUO-ART 120) with a 10-year old Sony laptop. No digital modes at present.  Laptop has Pentium T4200 processor and Mobile Intel 4500MHD graphics card and I have had no problems running SW2 software.
With the impending ending of support for Windows 7, I'm intending to buy a new Windows laptop - purely to use in the "shack", which is the house cellar (basement).  I use Macs for all non-ham activities and they are not in the cellar - the only other software run on the cellar laptop is Firefox.  I do not intend to buy a Mac and use Parallels for the shack.

What are the minimum system requirements for a PC for FDM-SW2?  I appreciate that some people run quite sophisticated machines, but I was thinking of just 4GB of RAM with 64-bit Windows 10  and a 128GB SSD.  Any comments on processor?  Any advice welcomed.

Thanks in anticipation.

David  G8IIC


FDM-SW2 system requirements

David <david.g8iic@...>
 

Currently running an FDM-DUO (and DUO-ART 120) with a 10-year old Sony laptop. No digital modes at present.  Laptop has Pentium T4200 processor and Mobile Intel 4500MHD graphics card and I have had no problems running SW2 software.
With the impending ending of support for Windows 7, I'm intending to buy a new Windows laptop - purely to use in the "shack", which is the house cellar (basement).  I use Macs for all non-ham activities and they are not in the cellar - the only other software run on the cellar laptop is Firefox.  I do not intend to buy a Mac and use Parallels for the shack.

What are the minimum system requirements for a PC for FDM-SW2?  I appreciate that some people run quite sophisticated machines, but I was thinking of just 4GB of RAM with 64-bit Windows 10  and a 128GB SSD.  Any comments on processor?  Any advice welcomed.

Thanks in anticipation.

David  G8IIC


Re: DUO-Art receive filters installation #duo-art

Vianney Colombat
 


Hello Ernst,

see the PDF file I have attached.

Regards,

Vianney


Il 11/11/2019 11:28, DL2EBV ha scritto:

Hello,
I would like to install some filters to my Duo-Art amplifier.
In the manual there is no photo of the board.
What is the numbering of the slots?
Is the first slot at the inner side or at the outer side?
Where to position the bypass-board?
Can anybody help me?

vy 73, Ernst, DL2EBV

_._,_._,


Le informazioni contenute in questo messaggio di posta elettronica sono riservate e confidenziali e ne è vietata la diffusione in qualunque modo eseguita (DL 196/2003). Qualora Lei non fosse la persona a cui il presente messaggio è destinato, La invitiamo ad eliminarlo e a non leggerlo, dandone gentilmente comunicazione al mittente.

The information contained in this e-mail and any attachments is confidential and may well also be legally privileged (DL 196/2003). If you are not among the named recipients, please notify the sender immediately by reply e-mail and then delete this message from your system, do not use the contents for any purpose whatsoever nor disclose them to anyone else.


DUO-Art receive filters installation #duo-art

DL2EBV
 

Hello,
I would like to install some filters to my Duo-Art amplifier.
In the manual there is no photo of the board.
What is the numbering of the slots?
Is the first slot at the inner side or at the outer side?
Where to position the bypass-board?
Can anybody help me?

vy 73, Ernst, DL2EBV


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Bill Alpert
 

Neil, a followup and discovery! Though my mains were off, I did't realize that a computer UPS was still active and was creating a lot of RFI within the shack. Removing it did improve things considerably. Though in the interim I did walk the neighborhood with an AM radio in hand and discovered a couple of utility poles that produced the "raspy" sound in my speaker when approached closely. I'm wondering if this is typical/normal to hear at close range and to be expected.
--
Bill / KG6NRV


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Bill Alpert
 

Hi Anders! Thanks for this though I'm a bit confused on the construction and purpose of the probe. Is it a complete antenna? Or is it used in conjunction with an antenna? How is the red lead used? And is the other end of the coax fitted with a PL259 and connected to a receiver?
--
Bill / KG6NRV


Tune button in WSJT-x freezes on some bands

Alan Skerker <alanskerker@...>
 

Tune button in WSJT-x freezes on some bands and does not end the transmission but when enable sends a msg on the same band each transmission ends properly. Any thoughts?


Re: MARS mod

mike bayard
 

anyone have a photo that works for r 94? you can send it off list if it is easier


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

AndersH
 

Bill, Neil,

It makes sense to chase down the mystery noise by car if the indoors environment has been cleared from all suspicions. A short capacitive probe antenna should be fine, as long as the right spectrum peak can be tracked continuously without any risk of confusion with other signals.

I recommend a 20-25 cm probe, made from an RG 58 patch cable, terminated by separated red and black test leads and PVC coated alligator clips at the far end. The black (ground) alligator lead can be taped against the coax while the red test lead is kept entirely free..

I recently did field strength testing on behalf of a ham friend, testing in his car with such a probe hanging as an ornament down from the mirror at the passenger side. The accuracy left something to be desired for the higher frequencies, due to the terrain, but at low frequency and vertical polarization, 80 and 160 meters, I was definitely impressed how well the method really worked. My friend applied 100W on different bands and I checked the results at approximately 700 meters distance.

In comparison, an unwanted signal source of less than 1W should be straightforward to spot at 100 meters with the same sensitivity.  Adding a piece of single core electrical wire in the teeth of the red alligator clip will boost the sensitivity, but at 7 MHz, I don't think this is necessary.

If and when the time comes to discuss an electromagnetic problem with a neighbor or a business owner, it's good to have an informed opinion about the offending electrical field strength in V/m. This field strength can be obtained by means of the dBm value, the electrical length of your probe and the attenuation factor due to the antenna capacitance. My own values

  • 6pF antenna capacitance (close to the car door)
  • 0.125 meters electrical length.

All the best!
Anders H.
SM6-8439


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Bill Alpert
 

Neil, thank you so much for your time and expertise!


On Sun, Nov 10, 2019 at 12:53 AM, Neil Smith G4DBN wrote:

Same artefacts in the Icom recording, but the Icom filtering reduces the 60 and 120Hz components radically.

In the 14MHz recording, there are also regular amplitude dropouts, but that could be electric fence pulses or something pumping the AGC.

Right, so it is power-line related in some way. 

1) First obvious thought is that there is a broken insulator or faulty transformer on a power line pole somewhere and it is arcing, but you should be able to use a medium-wave portable radio to locate that. 

Well I'm surrounded by power lines, many are labeled high voltage and everything is above ground. My antennas are very close to two sets of power lines.
I have walked the neighborhood with AM radio in hand, and some poles are definitely louder than others. Though wouldn't something like this be "off the charts" when standing underneath with a transistor radio?

2) If there is nothing of that sort within a quarter mile or so, then the huge level or harmonics could point to it being a series-wound motor with a commutator, but I think we'd see other frequencies related to the rotational speed. 

A motor like that would have to be at least 1/2 mile away. But this noise is fairly constant 24/7

3) Could it be a thermostat on a water heater or refrigerator or freezer or aircon which is arcing?

Not from my house, since I've tested this with the mains off and the radio running on battery power. Same noise.

4) It doesn't sound like anything I've heard from power-line communications or broadband internet services. The lack of any obvious modulation doesn't necessarily mean it *isn't* something like that, but usually you only see a 60Hz or sometimes 120Hz modulation on power-line comms.

5) Are there any machine shops or workshops nearby which might have a rotary phase converter running all the time, or VFD inverter for three-phase machinery perhaps? 

Possible, but at least 1/2 mile away. And that stuff wouldn't be running at night.


6) Any locals with ground-source heat pumps or well pumps or ornamental fountains or pond pumps for fish?

Not likely

7) Any 60Hz mains-powered electric fencing units, or bug zappers or the like?

Not likely

8) Any solar panel installations which feed the grid?  Unlikely as you would probably see them stop as the sun sets.

A few panels in the neighborhood. But the noise persists into the night.

Things to try:

1) suspect your own house first.  Can you turn off all the breakers and isolate the house power, with the radio/laptop running on batteries to see if there is any difference?  If there is, turn each breaker on and see which one makes the noise return and go hunting.

Yes, I"ve done this. Noise is not from my home.

2) when the neighbourhood is very very quiet, late at night when there is no wind, have a listen for arcing of humming noises in the area. Try not to get arrested!

Will try this!

3) If you found a reduction with the loop horizontal, that means the signal is probably in the plane of the loop, but that could mean it is a mile away. Can you get the loop away form the house and see if you can find any nulls?  If you can, then move 50 feet and try again, to see if you can triangulate the noise source.  It will be along a line parallel to the loop.

I'll have to figure out how to do this, perhaps set up a portable shack in the back of my hatchback car and drive around. Would a Yagi type antenna be better for this type of fox hunt?

I wish you the best of luck with tracing it, Bill. If you can get a really wide-band recording with at least 16kHz of audio bandwidth, it might help to dig out any commutator whine, but would probably be way too low to identify any SMPS.  Can you get snapshot of the waterfall spectrum of DC to 150kHz?  Might help to find a smoking gun if there is something with a faulty SMPS out there.

Not sure how to make the 16K recording, but I'll look into that
Here's the screenshot. Several weird unexplained peaks and something going on at 500 hz which sounds like a loud wind tunnel. Since I live near the ocean, I though that this LF stuff was marine related. But perhaps not! 
https://1drv.ms/u/s!AgUf4SSxaAwailI9ZIdLbC_XEjd9?e=oMakWu
 
Again, thank you so very much!

--
Bill / KG6NRV


Re: HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

KF4VAR
 
Edited

Jeez......after seeing the photos now I want a red one...........that is just sharp!!!!!
Regards & 73
Carr KF4VAR


Re: HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

Paul NN4F
 

Thomas,

 

I was just wondering where you have the cable connected to that is plugged into the headphone socket?

 

Oh, and I’m not the head of technical support, just a mere support minion… 😉

 

--

Paul Jones - Elad Sales & Technical Support (USA)

FDM-Duo, Duo-Art, FDM-DUOR,  FDM-S3, FDM-S2, FDM-S2, FDM-SW2, T-Mate

Visit http://www.eladit.com for the full range of Elad Products

Email Support Group - https://groups.io/g/EladSDR

 

Work Email: support@...
Home Email: Paul@... 
 

 

From: EladSDR@groups.io <EladSDR@groups.io> On Behalf Of Thomas McQuiggan
Sent: Saturday, November 9, 2019 17:46
To: EladSDR@groups.io
Subject: Re: [EladSDR] HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

 

PAUL JONES (Head if Technical Support for ELAD) contacted me and suggested the problem is more than likely caused by the FDM DUO firmware not being up to date. I’ll update it in the morning and report back 😊


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Neil Smith G4DBN
 

Hi Bill, there is a very strong 120Hz component in the 7045kHz recording, and also strong lines at 240 and 360Hz. Also weak lines at 60Hz, 480Hz and 720Hz.

In the 3000kHz recording, there is a very strong 60Hz component, then 120, 180

, 240, 360 and 720Hz

Same artefacts in the Icom recording, but the Icom filtering reduces the 60 and 120Hz components radically.

In the 14MHz recording, there are also regular amplitude dropouts, but that could be electric fence pulses or something pumping the AGC.

Right, so it is power-line related in some way.

1) First obvious thought is that there is a broken insulator or faulty transformer on a power line pole somewhere and it is arcing, but you should be able to use a medium-wave portable radio to locate that. 

2) If there is nothing of that sort within a quarter mile or so, then the huge level or harmonics could point to it being a series-wound motor with a commutator, but I think we'd see other frequencies related to the rotational speed. 

3) Could it be a thermostat on a water heater or refrigerator or freezer or aircon which is arcing?

4) It doesn't sound like anything I've heard from power-line communications or broadband internet services. The lack of any obvious modulation doesn't necessarily mean it *isn't* something like that, but usually you only see a 60Hz or sometimes 120Hz modulation on power-line comms.

5) Are there any machine shops or workshops nearby which might have a rotary phase converter running all the time, or VFD inverter for three-phase machinery perhaps? 

6) Any locals with ground-source heat pumps or well pumps or ornamental fountains or pond pumps for fish?

7) Any 60Hz mains-powered electric fencing units, or bug zappers or the like?

8) Any solar panel installations which feed the grid?  Unlikely as you would probably see them stop as the sun sets.

Things to try:

1) suspect your own house first.  Can you turn off all the breakers and isolate the house power, with the radio/laptop running on batteries to see if there is any difference?  If there is, turn each breaker on and see which one makes the noise return and go hunting.

2) when the neighbourhood is very very quiet, late at night when there is no wind, have a listen for arcing of humming noises in the area. Try not to get arrested!

3) If you found a reduction with the loop horizontal, that means the signal is probably in the plane of the loop, but that could mean it is a mile away. Can you get the loop away form the house and see if you can find any nulls?  If you can, then move 50 feet and try again, to see if you can triangulate the noise source.  It will be along a line parallel to the loop.

I wish you the best of luck with tracing it, Bill. If you can get a really wide-band recording with at least 16kHz of audio bandwidth, it might help to dig out any commutator whine, but would probably be way too low to identify any SMPS.  Can you get snapshot of the waterfall spectrum of DC to 150kHz?  Might help to find a smoking gun if there is something with a faulty SMPS out there.

Neil G4DBN

On 09/11/2019 23:46, Bill Alpert wrote:
Hi Neil, No structure that I can tell. Just a raspy sound, which is most objectionable in AM mode. No periodic changes detected. Yes, ATT does reduce it.

I did a wide band scan and noticed peaks in a few differing wide bands, so I made audio recordings of the Elad's audio output. In one case, I also recorded the sound from my Icom 7300 on the same frequency in the 40M band. The noise seems more objectionable on the Icom.
I also took some screen shots of the FDM-S2 software that match the audio recordings.
I put the recordings and screenshots in this folder; if you have a few minutes to take a look and listen, it would be greatly appreciated.
Dropbox link: https://www.dropbox.com/sh/3hjuozttoxf98hi/AAAdkfzv-OuCnrILXn65o-R4a?dl=0
--
73 de Bill / KG6NRV
-- 
Neil
<a href="http://g4dbn.uk/"><small>g4dbn.uk</small></a>


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Bill Alpert
 

Hi Neil, No structure that I can tell. Just a raspy sound, which is most objectionable in AM mode. No periodic changes detected. Yes, ATT does reduce it.

I did a wide band scan and noticed peaks in a few differing wide bands, so I made audio recordings of the Elad's audio output. In one case, I also recorded the sound from my Icom 7300 on the same frequency in the 40M band. The noise seems more objectionable on the Icom.
I also took some screen shots of the FDM-S2 software that match the audio recordings.
I put the recordings and screenshots in this folder; if you have a few minutes to take a look and listen, it would be greatly appreciated.
Dropbox link: https://www.dropbox.com/sh/3hjuozttoxf98hi/AAAdkfzv-OuCnrILXn65o-R4a?dl=0
--
73 de Bill / KG6NRV


Re: HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

Klaus Brosche, DK3QN <dk3qn@...>
 

Tom,

You keep going complaining here and you've got lots of advice from fellow hams in this forum
re. their suggestions in order to locate the root cause.

BUT you (almost) never respond to these suggestions and whether you have followed-up on
these and what the result finally was.

IMHO, reading and dealing with your posts here is just a pure waste of time. Sorry to say!

Sort it out with ELAD directly. IF something is wrong with your particular unit, they are the
ones who have the deepest knowledge about what might be wrong with your particular unit.

Klaus, DK3QN




Am 09.11.2019 um 23:46 schrieb Thomas McQuiggan:

PAUL JONES (Head if Technical Support for ELAD) contacted me and suggested the problem is more than likely caused by the FDM DUO firmware not being up to date. I’ll update it in the morning and report back 😊



Re: HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

Thomas McQuiggan <m7mcqio83ro@...>
 

PAUL JONES (Head if Technical Support for ELAD) contacted me and suggested the problem is more than likely caused by the FDM DUO firmware not being up to date. I’ll update it in the morning and report back 😊


Re: S9 Noise in 40 Meter Band - How Can I Track it Down?

Neil Smith G4DBN
 

Hi Bill, is there any structure to the noise?  Does it have any characteristics which show up in AM mode or FM or SSB? Any periodic changes? Does the noise extend way out of the band? Any difference with an attenuator in line? If you look at the AF spectrum, do you see any peaks/troughs?  Any sign of the PK indicator being hit? Where does the noise start to drop off as you look LF and HF of 7MHz?  Any strong signals anywhere from DC to 55MHz?  Are you close to any TV broadcast stations with 6MHz channel spacing? Could be rusty-bolt mixing product of digital TV?

Any sign of 60Hz or 120Hz components in the noise?  Hae a look at the audio spectrum of the noise in each mode using Spectrum Lab or something to see if it is pure white noise, or has any modulation or periodicity.

Good luck.

Neil G4DBN

On 09/11/2019 17:21, Bill Alpert wrote:
I'm seeing and hearing loud noise sometimes at S9 on 40 meters. Strangely, 80 meters (as well as 20,10, etc.) is relatively quiet. Yes, I'm close to power lines, and yes, my antenna situation is less than optimal. Still, I'd like to understand the source (is it local?) and nature of the noise. Why is it strongest on 40 meters?? Walking the neighborhood with an AM radio didn't immediately point to any obvious source.

Note that I've tested this while on battery power with the main power of my house off. No change. I have noticed that the noise reduces slightly when I orient my magnetic loop antenna horizontally.

Would it be worth buying a cheap portable shortwave radio to try and locate the source. Any other testing ideas? Thank you!


S9 Noise in 40 Meter Band - How Can I Track it Down?

Bill Alpert
 

I'm seeing and hearing loud noise sometimes at S9 on 40 meters. Strangely, 80 meters (as well as 20,10, etc.) is relatively quiet. Yes, I'm close to power lines, and yes, my antenna situation is less than optimal. Still, I'd like to understand the source (is it local?) and nature of the noise. Why is it strongest on 40 meters?? Walking the neighborhood with an AM radio didn't immediately point to any obvious source. 

Note that I've tested this while on battery power with the main power of my house off. No change. I have noticed that the noise reduces slightly when I orient my magnetic loop antenna horizontally. 

Would it be worth buying a cheap portable shortwave radio to try and locate the source. Any other testing ideas? Thank you!
--
Bill / KG6NRV


HELP!!!!!! FDM-DUO & DUO-ART sounds muted #duo-art

Thomas McQuiggan <m7mcqio83ro@...>
 

Hi all, I REALLY HOPE that someone can help me with this issue - it's driving me NUTS!!! 

I've connected the FDM DUO to the DUO-ART exactly as shown in the owners manual. I'll attach a photo to show the connections. I'm using Antenna-1 on the radio AND on the amp (there's a G5RV connected, hence the "G5" label on one of the coax leads). 

When I am in "FDM DUO INTERFACE" I get no signal and no audio (or it is extremely muted). If I choose "GENERIC INTERFACE" i get full signal and full audio.

Is there a setting that I'm missing??



Many thanks in anticipation of your help. 

Tom M7MCQ

3921 - 3940 of 19976