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Rocky with SDR-1000?
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Robert McGwier
This is an easy change. We only need to say do it.
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Bob Mike WA8BXN wrote: Has anyone used an SDR-1000 with its normal software to control frequency --
Laziness is the number one inspiration for ingenuity. Guilty as charged! |
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Bill Tracey
Bob -- I'm assuming the easy change you're referring to is to display 40+khz spectrum in PowerSDR?
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A more interesting (to me) change would be to be able to take the IQ signals from PowerSDR and pass them along via VAC (or some other channel) to auxiliary programs such as Rocky, SDRadio, Spectrum Lab etc. Then one could run both concurrently (assuming enough computer horsepower) Would also have to do a bit of work on some sort of control interface -- would need to tell Rocky or the other downstream programs what the current center frequency of the IQ stream is etc. Regards, Bill (kd5tfd) At 10:59 PM 11/5/2005, Robert McGwier wrote:
This is an easy change. We only need to say do it. |
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Robert McGwier
I am so impressed with VAC, it is almost surely possible to do this. I had not considered this as a possibility but it could be done.
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After months of begging for an answer, when we finally adopted Virtual Audio Cable and the guy sold a couple of hundred copies in a few days, he woke up, figured out the source for the sale, remembered me, and finally answered my emails. He offered to generously let me use the source code. If only I would be so kind as to send him $5000.00. Alex has been extremely kind and has allowed us to use his WDM-KS Delphi code without charging $5000.00. ;-) Because we will need to continue to use PortAudio to support things like VAC that do not know WDM-KS, or WDM period for that matter, we have chosen to take this generous offer and to fix the broken, non functional WDM-KS module in PortAudio as pay back to that project. Eric is hard at work on this (and too many other) issues. After we completely understand WDM-KS and PortAudio works, then it will be much easier to implement our own version of VAC, which will be based upon MSVAD in the Windows DDK. I really liked Covington's approach to make it file like but since the callback works so well, we might do that instead. Stay tuned Bob Bill Tracey wrote: Bob -- I'm assuming the easy change you're referring to is to display 40+khz spectrum in PowerSDR? --
Laziness is the number one inspiration for ingenuity. Guilty as charged! |
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--- In softrock40@..., Robert McGwier <rwmcgwier@c...>
wrote: Because we will need to continueKS, or WDM period for that matter, we have chosen to take thisgenerous offer and to fix the broken, non functional WDM-KS module inPortAudio as pay back to that project. Eric is hard at work on this (andtoo many other) issues.it will be much easier to implement our own version of VAC, which will bebased upon MSVAD in the Windows DDK. I really liked Covington'sapproach to make it file like but since the callback works so well, we mightdo that instead.Hi Bob, From what I gathered from posts made by the author of VAC to various newsgroups in the past when he was developing the driver it appears that VAC is the old NT Style type of driver. The last progress I made on vSound was to implement a callback mechanism to user mode using a user mode created event object. The handle to the object is passed down to the driver via IOCTL and the driver dereferences it into kernel space. When data is available the driver signals the event that the user mode app is waiting on. With this you now have a callback-like interface to the driver similar to PortAudio. The obvious nice part of basing a virtual audio driver on WDM is being able to use it with Ks. 73 de Phil N8VB |
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Bill --
The machinery to do this is already in the DSP code. As with a number of other things, what's missing is the ability to configure and control them as desired from the PowerSDR console. I'm beginning to think a useful feature in PowerSDR would be the ability to accept batched SDR commands in ASCII, since that's what the sdr process actually sees anyway. That would allow a back door to some of the occluded features for those who really need and want them right now. 73 Frank AB2KT --- In softrock40@..., Bill Tracey <kd5tfd@a...> wrote: A more interesting (to me) change would be to be able to take the IQchannel) to auxiliary programs such as Rocky, SDRadio, Spectrum Lab etc. |
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