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Junior Member
 
Group: Forum Members
Last Login: Tuesday, January 17, 2012 2:59 AM
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| I´m playing with the though on using a better external soundcard (CODEC) fir t FLEX-1500. Anyone having a schematics or similar where I can grab/put the I/Q-signals to my external soundcard ?? n.r Tilman SM0JZT
SM0JZT Tilman
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Moderator
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Last Login: Thursday, August 09, 2012 10:11 AM
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The only way to I/Q out of the FLEX-1500 (or any FlexRadio SDR) is to use VAC and enable the Direct I/Q option. With the new streaming USB driver, the FLEX-1500 no longer looks like an audio device.
Also, there are no schematics for the 1500 available at this time.
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Tim - W4TME
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Junior Member
Group: Forum Members
Last Login: Tuesday, January 17, 2012 2:59 AM
Posts: 12,
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| Correct me if I´m wrong. Will interfacing trough a VAC into a alternative sound-card really fly and give me better performance ?? I guess a hardware intervention (need for schematics) is the option that I need to look out for to get the stuff done that I´m looking for. / Tilman
SM0JZT Tilman
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Moderator
Group: Administrators
Last Login: Thursday, August 09, 2012 10:11 AM
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You are correct that the I/Q has been digitized at this point in the signal chain so using a sound card will not really buy you anything from a dynamic range standpoint.
You will have to hack into the board to do what you want to do and even then I do not know if it will work properly since the software is written for the existing codec.
Good luck in your experimentation.
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Tim - W4TME
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