Date   

Re: New Noise Reduction Features in SP1A External Speaker

Vianney Colombat
 

 
Hello all,
 
actually, the SP1 has been replaced by SP1A which has been redesigned to improve the quality of the filter that uses an Analog Device DSP for noise reduction. 
 
Vianney
 
From: "Clint Chron" <kiheiman@q.com>
To: <EladSDR@groups.io>
Date: Sun, 3 Nov 2019 13:20:51 -0700
Subject: Re: [EladSDR] New Noise Reduction Features in SP1A External Speaker
 
Hi Bill,
 
I suspect you have the older SP1 speaker.  The new SP1A file on the Elad Web site is dated October 2019.  The old SP1 speaker only had some passive audio filters (3 positions).   The new SP1A manual gives details on how to select the five different filters and how you can tell which filter is enabled via the three LEDs.
 
73
Clint
W7KEC
 
From: EladSDR@groups.io [mailto:EladSDR@groups.io] On Behalf Of Bill Kennedy via Groups.Io
Sent: Saturday, November 2, 2019 11:38 PM
To: EladSDR@groups.io
Subject: [EladSDR] New Noise Reduction Features in SP1A External Speaker
 



From: Billknn <billknn@...>
Date: November 3, 2019 at 1:21:25 AM CDT
To: EladSDR@groups.io
Subject: Re:  New Noise Reduction Features in SP1A External Speaker
I have the SP1 and am not all that impressed, sad to say. If there are 5 levels of noise reduction, I’d be very surprised, especially since there is only a 3 position switch and position 1 is no filtering. Actually I get a terrible AC hum (ground loop?) using the speaker that I’m trying to track down. It’s the only thing in the shack that has that hum. With no antenna connected it is quiet. The Duo and the speaker are connected to the same power supply. I still have more testing to do. If I figure out how to get rid of the ac hum maybe my opinion would change.

It appears to be very solidly built and nicely matches the radio but I wouldn’t buy it again.
 

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The inner workings of the DUOr SW2 AGC

AndersH
 

Hello group,

Can the DUO/DUOr AGC affect an IQ recording?
Some low cost SDR:s have a feedback loop with gain in their AD conversion process, but this does not apply for the DUO7DUOr platform, for sure.
I am doing a lot of processing of IQ files for NDB hunting on LF/MF and I am keen to know what my ideal settings should be.
Even though "gain compression" should be impossible in an IQ file; I've come across a phenomenon in my data that I like to understand as best as I can.

All the best!
Anders H.
SM6-8430


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

Ad Dieleman
 

So would this be OK? On pressing the second button I get Framework 4.7 or later.


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

Ad Dieleman
 

Checked this and the Root hub for USB 3.0 was enabled to power down. Unchecked this, fingers crossed. Thanks!


Re: FDM-DUO OS X

Craig Williams KA6RWL
 

Anthony

I am not sure why you would think this is a bad idea. This driver is also required to run both my Icom 7100 and 7300 on my Macs for accessing the internal radio sound card while using WSJT-X. I use multiple radios for Digital and my systems have behaved without issues for over a year. I also ran the FDM-DUO with Parallels in both a Win 7 and Win 10 virtual PCs on the same Macs before purchasing a standalone pC for the Duo.

Craig
KA6RWL

On Nov 2, 2019, at 7:26 AM, Antony Watts via Groups.Io <antonywatts@...> wrote:

I think this might be a bad idea. The MacOS drivers are OK (in 10.14 Mojave). Issue is probalbly in FDM-DUO USV interface, update this.

On 2 Nov 2019, at 14:11, Craig Williams KA6RWL <ka6rwl@...> wrote:

You might try loading the usb Mac OS driver from Silicon Labs. 
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

My recall isn’t so good on this but this is the driver I put on my Mac and I believe I saw the Duo soundcard. I found with my older 2011 27” iMac that there was a frustrating soundcard issue in the Mac itself that redirected FT8 audio to the Mac internal speaker randomly. This doesn’t happen on my newer 2016 Mac Laptop, it was just a common issue on older pre 2013 macs. But because of that issue on my iMac which is my primary shack computer I shifted the Duo over to a $400 HP all in one I picked up at Costco as a dedicated cpu to the duo. I keep the PC off the internet except when I am running wsjt-x and reporting to PSK Reporter. This has worked well for me. 

The work around for the mac soundcard issue was to change the midi settings and that works for some people but wasn’t consistent enough for me on my iMac. I experimented running a Raspberry Pi for digital on the Duo but I found the RPi cpu struggled to decode FT8. I then picked up the PC for the DUO. I made sure that the PC had the ability to put HDMI out  on a second monitor which I run to the Wall mounted TV in the shack and it’s pretty cool to have lots of desktop display space for the Duo.

73
Craig
KA6RWL 


On Sat, Nov 2, 2019 at 6:27 AM hk4km via Groups.Io <hk4km@...> wrote:
Thanks Mike.  Please let me know what driver you used.

I don't use Windows, only Macs with OS X.  I did try it on a Windows 10 laptop with same negative results.  CAT control works fine on both OS's.  Audio, no.







Re: FDM-DUO OS X

Neil Smith G4DBN
 

Hi Guillermo, sorry I've been away so haven't been following this thread. Just checking that you have granted permission for the Elad device under "Microphone" permissions in W10?

Probably not related as you can't see the device elsewhere. 

You only need the TX and CAT cables connected to use the DUO for standalone USB tx/rx with WSJT-X, the RX cable is only used with SW2.  Also remember that the AUX VOL setting is used to control the level on the standalone USB audio device (if you can get it to appear of course!)

Does the transmit audio device appear OK in Windows and WSJT-X?  Does the PC detect anything when you connect the cable to the TX socket?  I guess you have tried swapping the cable between the TX and RX sockets on the DUO and confirming that SW2 still works and WSJT-X still fails?

Neil G4DBN


On 03/11/2019 22:29, hk4km via Groups.Io wrote:
Spent all day trying to resolve my issue with FDM-DUO Audio.

Upgraded all firmware to the lastest version for everything (RX, TX, USB, UI).

Found that THE RX USB port is not defective as I could do the USB update using that port with no problem.

Reinstalled FDM-SW2.

Audio comming out of the RX USB port to FDM-SW2 works perfectly.

But, I still have the same problem with FDM-DUO Audio on Windows 10 (2 different PCs) Mac OS X (2 different Macs) and even in Linux (Manjaro)  All this is using WSJT-X.  It never sees the audio device.

So  I think I'll give up trying to use the FDM-DUO for digital comms!   Have some other radios to use and play with that work on the same computers I used.

Thanks to all who lent a hand.

73 de Guillermo - HK4KM

PS - This may help someone trying to use digital modes via USB from a laptop out in the field, running on the laptop's battery: Mine only activates one USB port when running on batteries.  I know there is  a trick to not let them be put to sleep but it can be a gotcha at the wrong time.
-- 
Neil
<a href="http://g4dbn.uk/"><small>g4dbn.uk</small></a>


Re: FDM-DUO OS X

Guillermo
 

Spent all day trying to resolve my issue with FDM-DUO Audio.

Upgraded all firmware to the lastest version for everything (RX, TX, USB, UI).

Found that THE RX USB port is not defective as I could do the USB update using that port with no problem.

Reinstalled FDM-SW2.

Audio comming out of the RX USB port to FDM-SW2 works perfectly.

But, I still have the same problem with FDM-DUO Audio on Windows 10 (2 different PCs) Mac OS X (2 different Macs) and even in Linux (Manjaro)  All this is using WSJT-X.  It never sees the audio device.

So  I think I'll give up trying to use the FDM-DUO for digital comms!   Have some other radios to use and play with that work on the same computers I used.

Thanks to all who lent a hand.

73 de Guillermo - HK4KM

PS - This may help someone trying to use digital modes via USB from a laptop out in the field, running on the laptop's battery: Mine only activates one USB port when running on batteries.  I know there is  a trick to not let them be put to sleep but it can be a gotcha at the wrong time.


Re: New Noise Reduction Features in SP1A External Speaker

Clint Chron
 

Hi Bill,

 

I suspect you have the older SP1 speaker.  The new SP1A file on the Elad Web site is dated October 2019.  The old SP1 speaker only had some passive audio filters (3 positions).   The new SP1A manual gives details on how to select the five different filters and how you can tell which filter is enabled via the three LEDs.

 

73

Clint

W7KEC

 

From: EladSDR@groups.io [mailto:EladSDR@groups.io] On Behalf Of Bill Kennedy via Groups.Io
Sent: Saturday, November 2, 2019 11:38 PM
To: EladSDR@groups.io
Subject: [EladSDR] New Noise Reduction Features in SP1A External Speaker

 




From: Billknn <billknn@...>
Date: November 3, 2019 at 1:21:25 AM CDT
To: EladSDR@groups.io
Subject: Re:  New Noise Reduction Features in SP1A External Speaker

I have the SP1 and am not all that impressed, sad to say. If there are 5 levels of noise reduction, I’d be very surprised, especially since there is only a 3 position switch and position 1 is no filtering. Actually I get a terrible AC hum (ground loop?) using the speaker that I’m trying to track down. It’s the only thing in the shack that has that hum. With no antenna connected it is quiet. The Duo and the speaker are connected to the same power supply. I still have more testing to do. If I figure out how to get rid of the ac hum maybe my opinion would change.

It appears to be very solidly built and nicely matches the radio but I wouldn’t buy it again.


Re: BLUETOOTH MODULE????

Mike Penkas
 

There is a very simple solution to programming  the HC05 module with a windows based program.  Search my callingn in the ELAD.io group and there is a message I posted last year with the still active link to the ZIP file.
Mike. WA8EBM



Sent from my Samsung Galaxy smartphone.


Re: New Noise Reduction Features in SP1A External Speaker

groups@...
 

Good to know, I want to buy one :-(


Re: BLUETOOTH MODULE????

Alan G4ZFQ
 

I recently followed this https://groups.io/g/EladSDR/message/15466
I do not know if there is actually anything else available.
I include a few notes I made while doing this. I exceeded Paul's 30 minutes several times over, I found a few differences.
Using Google Translate on the Italian page helped. In zip attachment.

73 Alan G4ZFQ

The notes:-
### Denotes the parts most relevant to me.

Setting up the BlueDUO adaptor and app with a Windows computer and USB to TTL adaptor.

###
HC-05 Bluetooth from Ebay like https://www.ebay.co.uk/itm/HC-05-HC-06-Wireless-Bluetooth-RF-Transceiver-Module-RS232-TTL-Base-Board-CF/273428844365?ssPageName=STRK%3AMEBIDX%3AIT&;var=572813129912&_trksid=p2060353.m2749.l2649 This has a push button next to the "EN" pin. Other modules may need a different way of getting into programming mode.

###
USB to TTL adaptor like https://www.ebay.co.uk/itm/1-2-5-10PCS-6Pin-USB-2-0-to-TTL-UART-Serial-Converter-CP2102STC-Replace-Ft232M95/291907298386?hash=item43f707e452:m:m1GWCLRehQxQtme92OrkcQA

###
HC-05 Notes selected from https://www.gme.cz/data/attachments/dsh.772-148.2.pdf and my additions.

AT mode allows you to interrogate the BT module and to change some of the settings; things like the name, the baud rate, whether or not it operates in slave mode or master mode. When used as a master device AT commands allow you to connect to other Bluetooth slave devices. There are many slightly different HC-05 modules, the modules I have are marked ZS-040 and have an EN pin rather than a KEY pin. They also have a small button switch just above the EN pin. They are based on the EGBT-045MS Bluetooth module.

STATE - HIGH when module is connected; ·RXD - data input pin; ·TXD - data output pin; ·GND - ground pin; ·VCC - power input pin; ·EN - Unknown pin. It should be connected to pin 34 of EGBT-045MS Bluetooth module, but it seems it doesn't work in preferred way;

To activate AT mode on the HC-05 zs-040 modules we can: –
1. Hold the small button switch closed while powering on the module. –
2. Set pin 34 HIGH (3.3v) when power on. –
3. Close the small push button switch after the HC-05 is powered. –
4. Pull pin 34 HIGH after powering the HC-05.

###
Method 1. Enters AT mode with the built in AT mode baud rate of 38400. The baud rate cannot be changed by the user. This method allows the module to enter AT mode on start but but does not keep pin 34 HIGH and uses the “mini” AT mode.
PRESS BUTTON WHEN SENDING COMMANDS

Method 2. Enters AT mode with the built in AT mode baud rate of 38400. The baud rate cannot be changed by the user.
If you keep pin 34 HIGH you will enable the “full” AT mode which allows all AT commands to be used. If you let pin 34 return LOW after power on then “mini” AT mode will be enabled.

Method 1 and 2 are good in that you know the baud rate – it will always be 38400. This could be useful if you have modules other people have used or if you forget what communication mode baud rate you have previously set.

###
Entering AT Mode
Method 1. Use the button switch The small push button switch, when closed, connects pin 34 to vcc which allows you to enter AT mode. Close the button switch when powering on the module and you enter AT mode using 38400 baud rate. Once on you can release the button switch, however, releasing the button switch puts the module in to a mini AT mode and some commands will not work. Commands such as AT+NAME?, AT+INQ, AT+RNAME? only work when pin 34 is HIGH. As soon as you release the button switch pin 34 returns LOW. If you want access to the extended commands you can simply close the switch just before issuing the AT command and release the button switch after the command has been sent.

###
I had set up 'termite' to use COMX, 38400, 8/N/1 append CR+LF.
https://iu8cri.wordpress.com/2018/01/16/blueduo-telecomando-wireless-touch-screen-elad-fdm-duo/ ###See zip
The article above states the following commands should be entered for the HC05;

### Below a copy of my tests with errors I made. No need for some of them "1234" was a difference.
First check:- name was HC-05
AT+ORGL
AT+ORGL Default state=:Slave mode, pin code :1234, device name: H-C-2010-06-01 ,Baud 38400bits/s
AT+NAME=BLUEDUO
AT+PSWD=1234
AT+UART=115200,0,0

AT+NAME?
+NAME:H-C-2010-06-01
OK
AT+NAME=BLUEDUO
OK
AT+PSWD=1234
ERROR:(1D)
AT+PSWD="1234"
OK
AT+PSWD?
+PIN:"1234"
OK
AT+NAME?
+NAME:BLUEDUO
OK
AT+UART=115200,0,0
OK
AT+UART?
+UART:115200,0,0
OK

Each time you enter a command, the Bluetooth modem should respond with "OK". It is important to use only uppercase commands / etc else it wont work. Once done, wire up the module to a DB9 connector as per the diagram on the above site (reproduced below);
HC05toCOM.jpg
### I suggest a flexible cable rather than directly connecting to plug.

An Android phone was paired to the BLUEDUO device, and the software downloaded and run. Go to Bluetooth settings on the Android and pair.
###
The app. is not on Google Play but is stand-alone. Download the latest from the Elad site. http://sdr.eladit.com/BLUEDUO/index.php?lang=EN BlueDuo-0.23-2019-01-04.apk or later is what you need. Click on that to install, you will probably need to permit installation in your Android's security setup. Mine did not create a shortcut so I had to do that manually.

Highly recommended to play with, it gives you easy access to a lot of functions and of course a waterfall display around your tuning frequency.

Soundwire PC/App WiFi audio.


New Noise Reduction Features in SP1A External Speaker

Bill Kennedy
 





From: Billknn <billknn@...>
Date: November 3, 2019 at 1:21:25 AM CDT
To: EladSDR@groups.io
Subject: Re:  New Noise Reduction Features in SP1A External Speaker

I have the SP1 and am not all that impressed, sad to say. If there are 5 levels of noise reduction, I’d be very surprised, especially since there is only a 3 position switch and position 1 is no filtering. Actually I get a terrible AC hum (ground loop?) using the speaker that I’m trying to track down. It’s the only thing in the shack that has that hum. With no antenna connected it is quiet. The Duo and the speaker are connected to the same power supply. I still have more testing to do. If I figure out how to get rid of the ac hum maybe my opinion would change.

It appears to be very solidly built and nicely matches the radio but I wouldn’t buy it again.


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

Keith McGinnis
 

One thing you might want to check in Device Manager (in Windows) check the USB Root Hub. Check the Power Management option under Properties in Device Manager (Windows) and make sure the "Allow the Computer to turn off this device to save power" is not checked. Recently after a minor update mine were checked (they hadn't been before) and found that my Airspy Discovery was shutting down randomly.

Keith
Hingham MA

On 11/3/2019 5:19 AM, Ad Dieleman wrote:
Thanks, good to know that I'm not the only one but not so good to hear that there isn't a solution (yet).


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

 

For sure this is not depending on your FDM-SW2 or SDR Receiver.
It is depending on your system and Platform configuration.
Any suggestion is a guess as we don't have your PC in front.

Often it is depending on the Frameworks.

Here is a Link that is not resolving your problem i think but a Introduction into such problems.
https://forums.developer.apple.com/thread/122305

Nota:
Check your actual Frameworks with a small program you can download here from my private Web-Site:
http://www.intrasystem.it/Frequency/Frequency.html
ReadFrameWorks
Raimund
.


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

Ad Dieleman
 

Thanks, good to know that I'm not the only one but not so good to hear that there isn't a solution (yet).


Re: SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

John Marsyla
 

I have the same problem, already for a long time, but so far no response.

John Märsylä


Op 3 november 2019 om 10:49 schreef Ad Dieleman <addieleman@...>:

For the last few weeks I get crashes of the ELAD FDM-SW2 program: it suddenly stops while receiving, last night even during a recording, while no other program was opened.

I'm running it on a Macbook Pro with macOS 10.14.6, Parallels 15 and Windows 10, all updated to their latest versions. Does anyone know where this problem may come from?


SW2 crashes after Windows updates #fdm-sw2 #fmd-s2

Ad Dieleman
 

For the last few weeks I get crashes of the ELAD FDM-SW2 program: it suddenly stops while receiving, last night even during a recording, while no other program was opened.

I'm running it on a Macbook Pro with macOS 10.14.6, Parallels 15 and Windows 10, all updated to their latest versions. Does anyone know where this problem may come from?


Re: BLUETOOTH MODULE????

m7mcqio83ro@...
 

Thanks Alan, I've seen that, but like I said, I don't really want to be building kits or programming a HC05 through terminal software.

It's hard to believe no one (not least of all Elad) has produced a nice plug-in device. Surely it would be a good seller?

73 Tom M7MCQ


New Noise Reduction Features in SP1A External Speaker

Clint Chron
 

I noticed that the latest user manual for the SP1A  external speaker shows that a five level noise filter is built into the box.  Has anyone used that box?  I would be interested to know what kind of noise filter is being used.  I have a BHI noise filter that has a number of noise reduction modes and it works very good.  There are no specs in the user manual as to the amount of noise reduction for each of the 5 levels.  If a DSP type of filter is being used, then that is a pretty impressive box for the price.

73
Clint
W7KEC


Re: T/R Automatic Antenna Switch Looking for Recommendation

Clint Chron
 

Last year, I looked at the various boxes for using my Duo/S2 on the same antenna as my IC-7300.  MJF and Elad both have boxes that provide that function.  However, I wanted something that had features not found in commercial boxes. 

 

For those of you that might be interested in building their own box, I have created a design that allows a single antenna to be used for transmitting on an IC-7300 and receiving on a Duo or S2.  I have a complete engineering package for the build, including a circuit board (I can only supply the hard to find parts).  Here are the features of this design:

 

Box can be used to connect a mag loop antenna (Wellbrook or W6LVP) to the receiver in a transceiver and a normal antenna to the transmitter.

A power injector is included in the box for use with a mag loop antenna.

An AM band broadcast filter is included in the box to get rid of the OVR overload lights on the Duo or S2.

A receiver front end protector is in the box to protect the Duo or S2 from high level transmitted signals.

Box can be used such that a single antenna can be used for receiving on a Duo/S2 and transmitting on an IC-7300.

 

If interested, please shoot me an email to:  kiheiman at q dot com and I can send you some details along with pictures of the box.

 

73

Clint

W7KEC

 

From: EladSDR@groups.io [mailto:EladSDR@groups.io] On Behalf Of Bill Alpert
Sent: Wednesday, October 30, 2019 8:00 PM
To: EladSDR@groups.io
Subject: [EladSDR] T/R Automatic Antenna Switch Looking for Recommendation

 

I'd like to use my S2 in conjunction with my Icom 7300, sharing a single antenna. Wondering if there's a quality automatic antenna switch with a relay to protect the SDR. I know that MFJ makes a couple of models in the $100 range, though they have mixed reviews. I don't mind spending a bit more to get a quality unit. Any recommendations appreciated!
--
Bill / KG6NRV

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