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As I am listening to the SDR, at nearly one minute intervals the rx begins popping, about 12 times to be exact and probably 1 sec apart, then stops until another minute has passed. During the popping, the CPU's only go up to about 14% max. I'm using a Dell Precision 360, Pentium 4 with 512Meg of ram, XP Pro SP2. I've tried using. Content provided by: FlexRadio Tech Support. Windows 10 updates have a history of corrupting kernel mode drivers. Before any Windows 10 Feature Updates, you may choose to completely remove SmartSDR for Windows from your PC before performing any Windows 10 OS Feature updates.

Introduction -- What's It All About?

The HPSDR is an open source (GNU type) hardware and software project intended as a 'next generation' Software Defined Radio (SDR) for use by Radio Amateurs ('hams') and Short Wave Listeners (SWLs). It is being designed and developed by a group of SDR enthusiasts with representation from interested experimenters worldwide.

The rationale behind the project is to break the overall design up into a number of modules. Each module is designed by an individual or group and connects to other modules using a pre-defined and common bus -- rather like plugging boards into a PC motherboard.

This modular approach enables prospective users to incorporate just the modules that interest them as well as designing their own variants if desired. The approach also enables new ideas and circuits to be tested by replacing an existing module. Since the majority of modules will be retained, such experimentation can be done with minimum disruption to an existing working system.

The modules vary in complexity from simple bandpass filters and input/output interfaces, to full blown DSP functions. Such variety enables experimenters with varying degrees of experience to contribute.

Thus far, the modules have each been named for easier identification when talking or writing about them. On this website, each module has its own web page, as noted by the tab selections near the top of the page. Some of the modules are being designed so that they can be either used in conjunction with others or stand-alone. Each module board size (except the backplane) will be 100 mm. by 120 to 220 mm. and use either a 96 pin or 64 pin DIN41612 type connector.

Hardware Block Diagram Draytek driver download for windows 10 free.

The following block diagram is a listing of the main parts of a HPSDR system. Note that the diagram is clickable and will take to webpages on the listed components. Also note that there is a bold black line coming in which is the common +13.8v DC power and the blue line indicates the connection to the computer.

Software Block Diagram

The second block diagram lists the software currently available as open source to operate the HPSDR hardware. The blue line indicates the connection to the hardware.

There are other programs that can work with HPSDR hardware. Some these include WinRad, WinRadHD, CWSkimmer to name a few.

Hermes block diagram

The following is a block diagram for the Hermes project. The Hermes project uses technology developed in the HPSDR boards but combines them in to two board that fit in a Euro style box. This radio might be for those that wish to go mobile with their SDR or do not wish to use the modular approach used in the development of the other boards. There has been some confusion in the that hardware is compatible and the same software works with these boards but the Hermes/Apollo boards are not design to use other HPSDR boards as they are developed in the future.

Some Glossary Definitions

Since this website and project is attracting interested persons who are not Radio Amateurs and hams who may not be familiar with some of the technical jargon, here are a few words about what some of the mysterious acronyms, etc. may stand for.

Radio Amateurs ('hams') -- persons around the world interested in radio communications and do so without monetary compensation (hence as in sports, the term 'amateur' as opposed to 'professional' in the sense of not receiving money for what they do). For more information on this hobby/service, start with www.hello-radio.org. In many cases on this website, we'll use the assigned 'call letters' of the ham -- in most cases,more information can be found about this person by going to a search website such as http://qrz.com.

SDR - Software Defined Radio -- These are radios where most of the radio is defined in software code either in FPGA, or in a supporting computer.

DSP - Digital Signal Processing -- The processing of a digitized signal with computer algorithms

FPGA - Field Programmable Gate Array -- These are large sets of gates in reconfigurable array. the chipc can be reprogramed by code.

Open source design

Brief definition of Open Source

In a 'nutshell', open source is a term that is applied to a philosophy, in that the production and organization of a project or system is created through open and cooperative efforts.

Open source software refers to computer software available with its source code and under an 'open source license' to study, change and improve its design and functionality.

There are many 'Open source software' licenses, the most prominent being the GNU General Public License (GNU GPL or simply GPL), originally written by Richard Stallman. The GPL grants the recipients of a computer program the following rights, or freedoms.

* The freedom to run the program, for any purpose.
* The freedom to study how the program works, and modify it.
* The freedom to redistribute copies.
* The freedom to improve the program, and release the improvements to the public.

The users are treated like co-developers, are encouraged to submit additions to the software, code fixes, bug reports, documentation etc. Having more co-developers increases the rate at which the software evolves. Furthermore, each end user's machine provides an additional testing environment. This new testing environment offers the ability to find and fix a new bug quickly.

[Note: this definition does not go into the various obligations and legalities and is intended to be brief andnon-exhaustive. The original was supplied by Kevin, M0KHZ with a few words 'Americanized' by the webmaster.]

Open Hardware License - Non-Commercial License

This GPL philosophy extends to the hardware for this HPSDR cooperative project. However it was felt by many that the software GPL and similar licenses would not adequately cover the hardware portion of this project, so an Open Hardware License (OHL) was devised. Also, another license referred to as the NCL - Non-Commercial License, was implemented to take care of situation where the project developers wish to reserve commercial licensing rights. The complete text of the two versions of the OHL/NCL licenses along with some explanation may be found on the TAPR website athttp://www.tapr.org/ohl.html

Future Modules

In order to provide a complete SDR, other modules will require developing.

There is still much to be done in bringing HPSDR to fruition. For those experimentally minded Amateurs this may turn out to be the golden age of (software defined) radio!

Milestones

Please look at ht HPSDR history page to learn more on how we got to where we are today.

Further Information

There are several sources of further information about this project and the various modules. On the 'cutting edge'of information we have a discussion list. There's more information about the list/reflector if you click the menu bar in the upper left area of this web page where it says 'Discussion List'. Message traffic on the list varies from 0 to 20 or more in a day.

For those who just wish to be informed about important announcements or events in the HPSDR project, we have an 'announce only' list with very low traffic. More information about this announcement list may be found at the same 'Discussion List' menu bar.

How does one become a participant? Jump right in! Subscribe to the discussion list. Make suggestions, ask questions, offer ideas for new modules, volunteer to help with design, research alternatives, PCB layout, documentation, firmware and software ..

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The tabs at the top edge of this web page will lead you to individual module web pages. We also now have a 'wiki' atCommunity_Portal to which the project leaders have direct edit accessand is more current than the module web pages on this website. You'll most likely find the latest informationon the design and progress in the wiki.

Contacting Us

The best method of contacting any of the developers is to join the discussion list (you must subscribe in order to post a message) and 'talk' to them directly there.

For web page inquiries, reporting broken links or incorrect information, wiki, discussion list subscriptions, etc., pleaseemail the discussion list administrator and web/wiki-master directly at 'KV0S' at 'openhpsdr' dot 'org'.

WriteLog allows its rig drivers to present to the operator what looks like two separate rigs, when there is, in fact, only one physical radio connected. This feature is not implemented on most of WriteLog’s rig drivers because it (a) requires a substantial amount of software work to construct but (b) only is useful if the rig itself is capable of simultaneous reception on two different bands at the same time. The Flex-6000’s qualify on this count. Here is how you add that capability to your WriteLog configuration. You start with WriteLog’s Setup/Ports dialog.

Slices A&B on a different Panadapter from Slices C&D

The key is that two rows in the dialog box both name the same FlexRadio (“Mayfield” in this case). Having done that you should configure SmartSDR to have two Panadapters.

WriteLog does not enforce the recommendation above that you create a second Panadapter, and that you place Slice A and B on one of them, and Slice C and D on the other. But this is a very strong recommendation. Why? There are several important reasons.

• The spectrum WriteLog draws on its Front Panel backgrounds comes from an IQ stream from a Panadapter. WriteLog can only draw spectrums out to half the IQ stream bandwidth from the center of the Panadapter. If you put Slices C and D on the same Panadapter as A and B, then all have to be within the same 192KHz bandwidth else at least some of the spectrums do not draw.
• All Slices on a Panadapter share their ANT setting, so to listen on one ANT while transmitting on the other, the Transmit Slice (with the bright red TX indicator like in the capture above) must be on a different Panadapter than the receive Slice. FlexRadio has announced software upgrades to enable full duplex (listen while transmit) operation. But that can only happen on two different antennas.
• This gets even more important if you have a Flex-6700, which has two independent receiver chains. More about that later.

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Operating two Panadapters concurrently on different bands?

This recommendation to separate Slices A&B onto a different Panadapter from Slices C&D does not mean those two Panadapters should or should not be on different ham bands. For all Flex-6000 models and all antenna configurations, there is no performance degradation operating the two Panadapters on the same ham band. Successfully operating two Panadapters concurrently on different ham bands depends on

• on which Flex model you have
• whether the antennas you have connected to the Flex’s ANT connector(s) are single band or multi-band antennas
• whether you can do without the bandpass filters in the ‘6500 when multi-band receive forces it into its WIDE mode. This can be important if you are operating SO2R with another radio besides your Flex.

The final posting on use of a second radio discusses these trade-offs in more detail.

Here is what the dataflow of the integrated WriteLog/SmartSDR/FlexRadio system looks like, and how to set WriteLog’s dialogs appropriately.

Do not overlook these details:

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• The Entry Window corresponding to Slices C and D should be set using WriteLog’s menu Radio/This-Window-Is/Radio-3. Why? Because WriteLog will move the Active indicator within SmartSDR only if its corresponding Entry Window has a designation of one of L/R/3/4. (The Active indicator is the yellow bar that control which Slice the FlexControl knob will tune when it is turned.) You really want WriteLog to move that Active indicator correctly.
• Why does it need to be 3 and not L or R? This is because I chose at this point in the discussion to add in the ability of WriteLog to route audio to a recording file, and also from the station microphone connected to the PC instead of directly to the Flex. When WriteLog controls any of its various multi-radio options that only expect two-choices: CW keyer L/R selection, the microphone routing to L/R rig, and the headphone routing for L/R rig, WriteLog treats the 3 (and 4) rigs just like R. So when you switch WriteLog’s transmit or receive focus between the R window and the 3 window, nothing changes in the CW keyer, or mic or headphone routing.
• In the picture that both the station microphone and the shack headphones are no longer connected to the Flex front panel, but are instead connected to physical Windows Recording and Playback devices, respectively. This enables WriteLog to record both all your transmitted audio as well as all received audio. Use WriteLog’s Sound board mixer control to set up which Windows devices are used, and use WriteLog’s Setup/Sound-board-options to turn on Echo Mic and Continuous Record.
• This picture shows the FlexRadio’s audio output connected to a physical Recording device. That sound makes it to the WriteLog mixer via a cable connection from the Flex (ACC jack in this picture, but the SPEAKER works as well) to a physical Recording Device on the PC. There are alternative sound routing configurations involving use of the DAX RX Audio devices in WriteLog’s Mixer, rather than requiring this additional cable between your Flex and your PC. However these features won’t work via DAX RX audio:
  • none of the DAX RX audio streams from the radio include CW Sidetone.
  • The radio’s Audio Pan/Gain controls only the audio via its HEADPHONES/SPEAKER/ACC and not the DAX channels.
• For digital mode operation, the number of MMTTY decoders running is expanded to four. (Not shown is that you need four RttyRite windows to go with them.) You can have one on each Slice, decoding from the four DAX RX 1 through 4 channels. Two of them must be RttyRite “clone Windows” because WriteLog will only command the first two into transmit mode.

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This configuration gives a lot of versatility, but, by my own definition of the term, this is not SO2R. For Single Operator 2 Receiver operation, my definition requires being able to transmit on one antenna while simultaneously receiving on another. Read the next post to see a way to add that.