New MDSR Version 2.51 released – includes AM, DRM (Dream) and FLDigi for digital form

Hi Everybody;

The MDSR group has released version 2.51 of the popular 12kHz IF modulator and demodulator software. The new software includes now AM (synchronous detector), DRM (Dream) and digital modes provided by FLDigi, which also includes a logging data base. This makes the MDSR the most versatile IF modulation and de-modulation package which can be used for free as long as it is used for amateur radio use.</SPAN></SPAN>

Please download the latest MDSR software from this link, size: 12MBytes</SPAN>

http://www3.telus.net/public/bc237/MDSR/MDSR-Win32-SetupV2-51.exe</SPAN>

Installation, setup and tuning instructions can be found here:</SPAN>
http://www3.telus.net/public/bc237/MDSR/Overview%20Document%20How%20to%20build%2\
0and%20set%20up%20the%20LIF%20-%20MDSR.pdf</SPAN></SPAN>


Please check out or Yahoo user group: </SPAN>http://groups.yahoo.com/group/mdsradio/</SPAN></SPAN>

Or our wwebiste at: </SPAN>http://users.skynet.be/myspace/mdsr</SPAN></SPAN>


All the best:

The MDSR Team


PS: comments are always welcome!</SPAN></SPAN> ​

 

Again Alex, out comes the attitude. I was going to write a lengthly reply; however, I'll suffice it to say that your attitude in your responses have COMPLETELY turned me off to the thought of even trying your "research tool" (product). Also, (Dare I say?) I believe your attitude is turning and will turn away many others.

Best of luck in your endeavor.
Jim, W8LGZ
sk

 

Hi Everybody;

The MDSR group has released version 2.51 of the popular 12kHz IF modulator and demodulator software. The new software includes now AM (synchronous detector), DRM (Dream) and digital modes provided by FLDigi, which also includes a logging data base. This makes the MDSR the most versatile IF modulation and de-modulation package which can be used for free as long as it is used for amateur radio use.</SPAN></SPAN>

Please download the latest MDSR software from this link, size: 12MBytes</SPAN>

http://www3.telus.net/public/bc237/MDSR/MDSR-Win32-SetupV2-51.exe</SPAN>

Installation, setup and tuning instructions can be found here:</SPAN>
http://www3.telus.net/public/bc237/MDSR/Overview%20Document%20How%20to%20build%2\
0and%20set%20up%20the%20LIF%20-%20MDSR.pdf</SPAN></SPAN>


Please check out or Yahoo user group: </SPAN>http://groups.yahoo.com/group/mdsradio/</SPAN></SPAN>

Or our wwebiste at: </SPAN>http://users.skynet.be/myspace/mdsr</SPAN></SPAN>


All the best:

The MDSR Team


PS: comments are always welcome!</SPAN></SPAN>​

 

In defence of Alex and the MDSR project

Alex VE7DXW is a very good friend of mine. He and I have been collaborating on the MDSR project inasmuch as I have placed my RF lab at his disposal. Alex and I have been conducting performance tests on the system at each stage of the development.

Alex and his Belgian co-developer Guy ON6MU have been, and still are, working very hard on the MDSR program. In my view, they are certainly deserving of consideration, and at the very least they merit a courteous hearing. MDSR is not really positioned to “compete” with established SDR products; its mission is to provide an inexpensive solution to the task of adding SDR-type functionality, including a GUI with extensive radio-management features and a spectrum scope, to conventional superhet-type receivers and transceivers. It is our hope that MDSR will appeal to the experimenters and builders in the amateur community who are still interested in trying something new.

73, Adam VA7OJ/AB4OJ
http://www.ab4oj.com/

 

Are we not all appliance operators at some level?

 

$30! That's an outrage sir! You're just as bad as those money grubbing b4stards at Flex Radio!!

 

Alex,

Thank you and your colleagues for further rolling out the feature of synchronous AM detection.

I have received emailed recordings of AM QSOs made in the "SAM" (Synchronous AM) receive mode, and it's an outstanding way to participate in our part of the hobby.

Most of the operators I encounter who are using synchronous detection are also running some version of the Flex transceiver, although a few are using the Sherwood SE series on a traditional receiver.

Me, I'm still "stuck" using the high quality diode load terminals from an R390, an R390A or an SP600 receiver. Not bad, but not as good ...

Here's hoping more will acquire and implement your system to help spread the joy of synchronous AM reception...

http://amfone.net

 

I wish I could figure out modern rigs enough to be their appliance operator!

Lou Axeman, N8LA

 

Alex,
I think Frank k2ncc and Jim W8LGZ are right.
There is something as freedom of speach and expression too. And the way you replied... Not my cup of tea.
This being said, I too find this MDSR thing way to complex to start with! You need a whole lot of study just to get the hang of it. Surely the MDSR java is full of complex settings to get lost in easily.
The idea is good, tapping from mf and demodulate it with software, but does it need to be so complex? And we still need an expensive rig to get on HF. No rig, no MDSR = no radio = no HF.
I think MDSR has a future in a different category but not as SDR. Perhaps in analysis of the spectrum, DSP and so. I do know.
Of course this all is my personal opinion. I do not want to bad mouth MDSR at all. It has its purpose for the experimenters out there.
MDSR is not for me but please do not hesitate to give it a try. I could see that there was a whole lot of work put in this product.
73 88 Jenna SWL

 

Welcome to QRZ.com new user "Jenna".

Your writing style seems strangely, uh, "Canadian". Would you happen to know or be VE7DXW?

 

Sorry to hear that you where not able to implement MDSR at your station setup, seeing from your QRZ profile seeing that you are running a Flex Radio put you in the rarefied group of individuals for sure.
I on the other hand only have some "Classic" rigs at my disposal for experementation (IC 706MKII, IC-746 non DSP) and my available computer for use in the "ham shack" (located in a corner of my garage) is is a bit dated in comparison to your setup so the MDSR route was the the most cost effective method for me to get into DSP "like" radio, I believe my total expenditure was no more then $70.
Yes the operation of the MSDR software required a small investment of my time and gray matter since it is so Flex-abel and this was a good refresher for a "old timer" like me to the latest software methodologies in DSP radio.

In fact MSDR and its use got me into even better low cost DSP radio with my aquiering of a few rather inexpensive RTL2832u E4000 / R820T type dongles and a HF converter for them for a total expenditure (dongles and HF converter) $90.

So let see $70 + $90 =$160 for this low sum I now have a 50 MHz to "Daylight" multi format DSP receiver, followed with a VLF-HF DSP Receiver via the dongles and of course the MSDR abilities on my classic icom radios.

MSDR is what got me into the DSP game at extremely LOW COST in comparison to the cost of a FLEX type radio, and just think I can still use the classic radios without the need of a computer oh and yes I do have a laptop and I do use it for Digital modes with my classic radios.

If you require help I am willing as a old timer to act a "elmer" to assist you in getting MSDR compiled.
Best Regards.
Steve
AB2ET/4

 

Updated MDSR Setup file

Hi Everybody;</SPAN>

We have issued a new Setup file because there was a pointer issue with the last V.2.51 setup. Due to a pointer issue the setup for Dream and FLDigi. The new file has been uploaded to our FTP site.</SPAN>
If you have not manually installed Dream and FLDigi please reinstall the software and it will automatically launch the installation of the additional software packages needed.</SPAN>

Please note that the install directory for Win Vista and Win7 should be C:\MDSR\ to avoid security errors.</SPAN>

Please download the latest MDSR software from this link, size: 12MBytes</SPAN>

http://www3.telus.net/public/bc237/MDSR/MDSR-Win32-SetupV2-51.exe</SPAN>

Installation, setup and tuning instructions can be found here:</SPAN>
http://www3.telus.net/public/bc237/MDSR/Overview%20Document%20How%20to%20build%2\</SPAN>
0and%20set%20up%20the%20LIF%20-%20MDSR.pdf</SPAN>




All the best and sorry for the confusion;</SPAN>

Alex</SPAN>
VE7DXW</SPAN>

 

I have some questions to ask of the SDR users on this board. Do you notice a delay? I have listened to a NWS Weather Station with a HT at the same time tuned my DVB-T USB dongle to the same station. Now without feeding the two signals into Audacity to see eactly how big the time lag is, it appears to be more than one but less than three seconds. Would this present a problem with breakin CW?

I have also turned on the CPU scaling tool in Ubuntu and have a Load of 88% to over load, this is with an AMD Sempron at 2Ghz, any one else notice these loads?

I am using HDSDR, SDR# and in Linux GQRX. All three exhibit the same symtoms.

 

Delay is normal due to buffering.

 

Alex,

It's what is known as an opinion and we are free to have them. If we don't like a product, whether it be software, a car, or a loaf of bread, we are free to speak how we chose. I have to agree with the other posters, your initial response came off as rude and insulting.