[Flexradio] Offering of a new solution to SDR-1000 users
Dear SDR-1000 users, Let me present a new solution for you. It is called USB2SDR, is ready-made and whereas so far it was used in homebrew rigs, now by including the top notch ADC AK5394A ADC having 123dB dynamic range and additionally a dedicated controller specifically for SDR-1000 DB25 interface, comes to you providing seamless operation. As the name indicates, it has a USB connection from your PC to your SDR rig setup. USB2SDR, gets in between your PC and SDR-1000 rig, it replaces any plain audio card you currently have, with a dedicated SDR DSP designed device, and from then on all functions of your radio are controlled from a USB port of your PC. USB2SDR is a DSP device designed from radio amateurs for radio amateurs and gives to current SDR-1000 users the ability to fully utilize rig's abilities and give a boost at maximum in the performance of their radio. All that with an easy to setup total solution as it handles and solves both control interfacing and ADC. ADC/DAC configuration is 4in and 4out concurrent channels, and the latest PowerSDR v2.5.3 for SDR-1000 will be given, additionally ammended, including USB2SDR in the supported list so you will have ease of setup. So your radio will get a single device offering control via USB, the ADC/DAC for I/Q and Mic/Speaker will also be via USB, all of them in a single cable connection between your PC and USB2SDR. USB2SDR will have and handle all other connections to your rig, the control interface to DB25, the I/Q ADC/DAC, the audio mic/speaker and the CW key. Dedicated drivers are implemented for that device, bypassing any windows audio buffering and latency. All windows environments are supported, W7 and W8 in 32 or 64 architectures. Your familiar application, PowerSDR v2.5.3 will be there, yet now you will be given the opportunity to have operation from all modern PC's or laptops as they all have a USB 2.0 HS connection available. And do that now with the increased performance of 123dB dynamic range from the powerful AK5394A at full 192KHz. The offering comes from the USB2SDR Indiegogo campaign here -> http://www.indiegogo.com/projects/usb2sdr-software-defined-radio-startup For any information you can contact me directly or post in the powersdr-iq Yahoo! group here -> http://groups.yahoo.com/neo/groups/powersdr-iq Best regards & 73, Christos SV1EIA ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
[Flexradio] carrier on ssb
Hi, Just wanted to point out that the LO leakage has been handled from Tasa YU1LM a few years back succesfully in his designs. Specifically in his Avala-01 -> http://yu1lm.qrpradio.com/AVALA-01%20AND%20ADTRX2-YU1LM.pdf you can suppress that 'carrier' by adjusting the bias voltages on I and Q of the QSE. That is not new and although all the reasons that Terry mentioned do exist, Tasa managed with this simple solution to tackle them, since some time now. I can testify this because my homebrew Avala and its carrier suppresion works lke a charm. Yet that feature is not existent in SDR-1K or in other homebrew QSEs. Probably something like it has to be in Flex-5K and in the new models. Just my 2c. 73, Christos SV1EIA ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] SDR-1000 PowerSDR v1.12.1 with dedicated I/Q settings per each band
Willi, The issue you refer to is an inherited problem of the PowerSDR software as it is today due to the DttSP library and the linear method of IQ calibration the DttSP uses.. It is not solved by as you easily think by storing an infinite number or settings. Even if you do that you cannot have proper image calibration and the problem will still be there. It will be solved by utilizing a non-linear IQ calibration method but that requires a major DttSP change... Regarding the current modification that has been given by me to SV1FXO (the other Christos who is a SDR1K user) and has also been given to Flex is quite simple and I really cannot understand why they fight so much about it. The separate IQ calibration settings per each band gives you the opportunity to store your user settings (when you finish your old fashioned calibration) per each band, just store! It has been proven that each band needs a different set of phase/gain so this is what the modification is doing. Just stores the user defined phase/gain settings of a band and recalls them when the user goes back to this band. I really cannot understand why so much fuss about it. Its plain, it is simple and it works. 73 Christos SV1EIA On Mon, Aug 4, 2008 at 1:56 AM, Willi Reppel <[EMAIL PROTECTED]> wrote: > Chris, > My SDR1000 is not operational for the time being, but I remember that a > found setting for best image rejection is changing rapidely when detuning > some kHz from the frequency you used for the calibration. So I guess you > would need an indefinite number of locations to store said optimal settings. > Try and find out how many optimal image rejection setting you would need per > band and reconsider what you ask for. > > vy 73 > SM6OMH Willi > - Original Message - From: "Christos" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; "FlexRadio biz" ; > "Christos Nikolaou" <[EMAIL PROTECTED]> > Sent: Sunday, August 03, 2008 9:24 PM > Subject: Re: [Flexradio] SDR-1000 PowerSDR v1.12.1 with dedicated I/Q > settings per each band > > > > Gerald Youngblood wrote: >> >>> Dear Chris, >>> >>> With respect, I must say that your statement below is simply false. We >>> make >>> a significant investment in PowerSDR software development, which includes >>> ongoing support for the SDR-1000. We receive NO ongoing revenue from >>> from >>> any of our existing customers to help pay for support and improvements. >>> New >>> FLEX-5000 sales pay for the free improvements that you and our other >>> customers receive on a daily basis through the SVN. >>> >> >> >> Dear Gerald, >> I have the sense that software improvements is a commitment from >> FlexRadio and it is included in your old motto: "The radio that keeps >> getting better". >> >> >> With regard to RX and TX image calibration by band, the FLEX-5000 has >>> built >>> in test equipment (BITE). The SDR-1000 simply does not. To do the >>> calibration by band on the SDR-1000, we would need to automate through >>> software an external spectrum analyzer and signal generator using a GPIB >>> interface. Even on Ebay, the test equipment to do that would cost at >>> least >>> $5000. The software work to do that would be costly as well. There is >>> simply not a practical or cost effective way to do this on the SDR-1000. >>> >>> >> >> >> I consider per band image calibration a major feature and certainly you >> don't need to have BITE in the sdr1k for this purpose. The least one >> needs is just a second tranceiver and the permission from the software >> (PowerSDR) to let you store different settings for each band. It is that >> simple. >> >> >> >> FlexRadio has made a long term commitment to support the SDR-1000 in >>> future >>> software architectures. This means only cost to FlexRadio and not >>> revenue. >>> That means that SDR-1000 and FLEX-5000 owners will continue get new >>> features >>> and even performance enhancements at no cost. >>> >> >> I agree on that. >> >> I don't think you will find that commitment coming from any of the guys >>> across the Pacific. >>> >>> >> >> That's why I am demanding from FlexRadio. >> >> >> There is an old saying that goes, "Don't look a gift horse in the mouth >>> because..." >>> >>> >> >> A horse with rotten teeth is completely useless even as a gift, so a >> look in its mouth is m
[Flexradio] SDR-1000 PowerSDR v1.12.1 with dedicated I/Q settings per each band
Hi, Some time ago a friend of mine that has an SDR-1000 asked me how difficult is it to have specific image rejection settings per each band like the Flex-5000 has. After some code searching I came up with a solution to his request so separate settings of phase,gain on rx and tx per each band will be available to his SDR-1000. I do not knkow if this is of use to you, but I did send a post to the Flex guys here and did not got back a reply. Anyway, I have a svn already in Google Code so if someone wants it here is the installation file with the latest updates based on PowerSDR v1.12.1 -> http://powersdr-iq.googlecode.com/files/PowerSDR%20Setup.msi Also the source of this build for examination if Flex coders want it is under "Flex" branch. Since this work has been done for one SDR-1000 user, I guess it is good for others to enjoy it freely too. 73 Christos SV1EIA -- Forwarded message -- From: Christos Nikolaou <[EMAIL PROTECTED]> Date: Fri, Jul 25, 2008 at 10:36 PM Subject: Re: PowerSDR v1.12.0 with dedicated I/Q settings per band To: flexradio@flex-radio.biz Of course that is for the SDR-1000 models! forgot to mention this. On Fri, Jul 25, 2008 at 10:26 PM, Christos Nikolaou <[EMAIL PROTECTED]> wrote: > Hi, > > I have experimented with the 1.12.0 trunk and created a version that has > dedicated phase/gain I/Q settings and image calibration specific for each > band. > Whenever you change band, the dials change too. > Initialy all bands have 0 on all phase/gain dials and you have to adjust > per each. > On program exit all values are stored and remembered in PowerSDR.mdb. > I've utilized the internal variables scheme of Flex-5000. > > Provided that you do have some usage for it or want it, how can I send you > the source code? (VS2003 project) > > > 73 > Christos SV1EIA > > > ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR v1.12.0 with dedicated I/Q settings per band
Of course that is for the SDR-1000 models! forgot to mention this. On Fri, Jul 25, 2008 at 10:26 PM, Christos Nikolaou <[EMAIL PROTECTED]> wrote: > Hi, > > I have experimented with the 1.12.0 trunk and created a version that has > dedicated phase/gain I/Q settings and image calibration specific for each > band. > Whenever you change band, the dials change too. > Initialy all bands have 0 on all phase/gain dials and you have to adjust > per each. > On program exit all values are stored and remembered in PowerSDR.mdb. > I've utilized the internal variables scheme of Flex-5000. > > Provided that you do have some usage for it or want it, how can I send you > the source code? (VS2003 project) > > > 73 > Christos SV1EIA > > > ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] PowerSDR v1.12.0 with dedicated I/Q settings per band
Hi, I have experimented with the 1.12.0 trunk and created a version that has dedicated phase/gain I/Q settings and image calibration specific for each band. Whenever you change band, the dials change too. Initialy all bands have 0 on all phase/gain dials and you have to adjust per each. On program exit all values are stored and remembered in PowerSDR.mdb. I've utilized the internal variables scheme of Flex-5000. Provided that you do have some usage for it or want it, how can I send you the source code? (VS2003 project) 73 Christos SV1EIA ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
