Loading ...
Sorry, an error occurred while loading the content.

Re: Raspberry PI stand alone SDR

Expand Messages
  • Dave
    AFIK, looking at the hardware spec s. It has on board stereo sound OUTPUT, but no sound INPUT of any sort. So, would need an external (USB?) device, and all
    Message 1 of 6 , Mar 1, 2012
    • 0 Attachment
      AFIK, looking at the hardware spec's.

      It has on board stereo sound OUTPUT, but no sound INPUT of any sort. So,
      would need an external (USB?) device, and all the fun and games that
      entails.

      I to was wondering about the posibility of using the (otherwise
      redundant) GPU to process a data stream from a dual channel ADC, or sound
      codec chip attached to the GPIO port, but if the GPU is "closed", that
      makes it unlikely any of that will happen. Sadly.

      I've registered my interest in the R'Pi with Farnell in the UK, will see
      what happens if/when I get one. I have other potential uses for one in
      any case. None of them involving Video, HDMI or otherwise!

      73.

      Dave G0WBX.
    • Robert Nickels
      Interesting discussion. I do think the R-Pi group deserves accolades for standing firm on features vs. cost and avoiding feature creep that would adversely
      Message 2 of 6 , Mar 2, 2012
      • 0 Attachment
        Interesting discussion. I do think the R-Pi group deserves accolades
        for standing firm on features vs. cost and avoiding feature creep that
        would adversely affect their target applications in education and
        training. As engineers we know how strong the temptation can be!

        But speaking as a former engineer-turned-business development guy, I'd
        suggest that the best way to influence the design of future devices
        based on the R-Pi platform would be to show the developers what those
        features could do to enhance their educational mission. And since it is
        clear that SDR is the future of radio, and that knowledge of radio in
        all its myriad forms will be a critical success factor for those
        developing the products of the future, this ought to not be too difficult.

        73, Bob W9RAN
      • Kees & Sandy
        I agree. If their goal is to spread a very low cost Computer / Internet attachment device throughout the world, making sure there is one on every school desk
        Message 3 of 6 , Mar 2, 2012
        • 0 Attachment

          I agree. If their goal is to spread a very low cost Computer / Internet attachment device throughout the world, making sure there is one on every school desk or attached to every TV, telephone, broadband, etc  .....Rasberry Pi is a wondeful vehicle with great possibilities.

          Our's is still a niche market with unique requirements.

          73 Kees K5BCQ

          ---------- Original Message ----------
          From: Robert Nickels <w9ran@...>
          To: softrock40@yahoogroups.com
          Subject: [softrock40] Re: Raspberry PI stand alone SDR
          Date: Fri, 02 Mar 2012 09:10:33 -0600

           

          Interesting discussion. I do think the R-Pi group deserves accolades
          for standing firm on features vs. cost and avoiding feature creep that
          would adversely affect their target applications in education and
          training. As engineers we know how strong the temptation can be!

          But speaking as a former engineer-turned-business development guy, I'd
          suggest that the best way to influence the design of future devices
          based on the R-Pi platform would be to show the developers what those
          features could do to enhance their educational mission. And since it is
          clear that SDR is the future of radio, and that knowledge of radio in
          all its myriad forms will be a critical success factor for those
          developing the products of the future, this ought to not be too difficult.

          73, Bob W9RAN

        • Sid Boyce
          My wonder is if the poorly trained IT teachers in schools have what it takes. The students probably can outshine their teachers. In a recent article Running
          Message 4 of 6 , Mar 2, 2012
          • 0 Attachment
            My wonder is if the poorly trained IT teachers in schools have what it takes.
            The students probably can outshine their teachers.

            In a recent article "Running on empty", employers are complaining of the lack of IT skills in the UK. Most students are fed a diet of Word and Excel which doesn't produce software developers and employers are forced to look elsewhere for the needed skills.

            The universities are just as bad in providing graduates with useful skills in that they can only use one inflexible set of development tools so if asked to deviate from the known, they are lost.

            The goal is to have a properly educated bank of graduates with a broader range of knowledge than simply installing an OS and its tools to be used a little more widely and knowledgeably than a new TV set and a fancy remote but not much more.

            The RasPi will hopefully assist in expanding minds and mindsets, producing the next generation designers and developers as opposed to appliance users.
            73 ... Sid.

            On 02/03/12 16:22, Kees & Sandy wrote:
             

            I agree. If their goal is to spread a very low cost Computer / Internet attachment device throughout the world, making sure there is one on every school desk or attached to every TV, telephone, broadband, etc  .....Rasberry Pi is a wondeful vehicle with great possibilities.

            Our's is still a niche market with unique requirements.

            73 Kees K5BCQ

            ---------- Original Message ----------
            From: Robert Nickels <w9ran@...>
            To: softrock40@yahoogroups.com
            Subject: [softrock40] Re: Raspberry PI stand alone SDR
            Date: Fri, 02 Mar 2012 09:10:33 -0600

             

            Interesting discussion. I do think the R-Pi group deserves accolades
            for standing firm on features vs. cost and avoiding feature creep that
            would adversely affect their target applications in education and
            training. As engineers we know how strong the temptation can be!

            But speaking as a former engineer-turned-business development guy, I'd
            suggest that the best way to influence the design of future devices
            based on the R-Pi platform would be to show the developers what those
            features could do to enhance their educational mission. And since it is
            clear that SDR is the future of radio, and that knowledge of radio in
            all its myriad forms will be a critical success factor for those
            developing the products of the future, this ought to not be too difficult.

            73, Bob W9RAN



            -- 
            Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot,
            Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
            Senior Staff Specialist, Cricket Coach
            Microsoft Windows Free Zone - Linux used for all Computing Tasks
            
          • John Rabson
            ... And be able to attain a usable level of competence in a new application without having to go on a long course. I used to have to cope with a variety of
            Message 5 of 6 , Mar 3, 2012
            • 0 Attachment
              On 3 Mar 2012, at 02:20CET, Sid Boyce wrote:

              The students probably can outshine their teachers.

              I have known schoolboys who certainly did.

              In a recent article "Running on empty", employers are complaining of the lack of IT skills in the UK. Most students are fed a diet of Word and Excel which doesn't produce software developers and employers are forced to look elsewhere for the needed skills.

              The universities are just as bad in providing graduates with useful skills in that they can only use one inflexible set of development tools so if asked to deviate from the known, they are lost.

              The goal is to have a properly educated bank of graduates with a broader range of knowledge than simply installing an OS and its tools to be used a little more widely and knowledgeably than a new TV set and a fancy remote but not much more.

              And be able to attain a usable level of competence in a new application without having to go on a long course. I used to have to cope with a variety of languages, OSs, and GUIs (about 20 different things over 30 years).  Frequently I simply had to borrow the manuals for the weekend and start programming on Monday. It was quite surprising how much you could learn by writing the traditional “Hello World” program.

              I probably never achieved Sid's level in some of them (I never really did master JCL), but I did manage to do some machine-code* software for a satellite application -  and I could make even PL1 do what I wanted to.

              John
              *  no, not assembler. We were working to a tight deadline and the mainframe was down for maintenance so we did the coding by hand

            • Sid Boyce
              ... I thought my dozen or so over 34 years was quite a few, but like one colleague used to say, it s all code. ... I think you probably achieved more. Wading
              Message 6 of 6 , Mar 3, 2012
              • 0 Attachment
                On 03/03/12 08:23, John Rabson wrote:
                 
                On 3 Mar 2012, at 02:20CET, Sid Boyce wrote:

                The students probably can outshine their teachers.

                I have known schoolboys who certainly did.

                In a recent article "Running on empty", employers are complaining of the lack of IT skills in the UK. Most students are fed a diet of Word and Excel which doesn't produce software developers and employers are forced to look elsewhere for the needed skills.

                The universities are just as bad in providing graduates with useful skills in that they can only use one inflexible set of development tools so if asked to deviate from the known, they are lost.

                The goal is to have a properly educated bank of graduates with a broader range of knowledge than simply installing an OS and its tools to be used a little more widely and knowledgeably than a new TV set and a fancy remote but not much more.

                And be able to attain a usable level of competence in a new application without having to go on a long course. I used to have to cope with a variety of languages, OSs, and GUIs (about 20 different things over 30 years).  Frequently I simply had to borrow the manuals for the weekend and start programming on Monday. It was quite surprising how much you could learn by writing the traditional “Hello World” program.

                I thought my dozen or so over 34 years was quite a few, but like one colleague used to say, it's all code.

                I probably never achieved Sid's level in some of them (I never really did master JCL), but I did manage to do some machine-code* software for a satellite application -  and I could make even PL1 do what I wanted to.

                I think you probably achieved more. Wading through 370 assembler was second nature and I can still remember the opcodes and operands, something I never got around to learning on x86.

                The OS/9 JCL we used at Univac was quite simple yet as powerful as IBM's.
                It was quite a shock to see IBM mainframe jobs advertised for JCL programmers, IBM couldn't have made what should have been a simple task more complicated.
                John
                *  no, not assembler. We were working to a tight deadline and the mainframe was down for maintenance so we did the coding by hand

                Assembler was key in troubleshooting hardware instruction failures so we had to know it thoroughly to be able to use it without reference to manuals. It was fun.
                73 ... Sid.


                -- 
                Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot,
                Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
                Senior Staff Specialist, Cricket Coach
                Microsoft Windows Free Zone - Linux used for all Computing Tasks
                
              Your message has been successfully submitted and would be delivered to recipients shortly.