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hardware: a/d convertor circut?

  • albertw
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hardware: a/d convertor circut? was created by albertw

Hi,

I've started messing about with radios again and decided to see if there was any software to do basic radio astronomy out there. By amaeteur I mean such lofty goals as trying to detect the sun!

Much of the software takes input from the serial/parallel port of the PC, and many expensive radios provide this digital output as standard.

Mine however dont, so I need to make an analogue to digital convertor. So has anyone else tried to do this before and have a circut diagram I can use? I vaguely remember doing this in college but I've forgotton the details (quite a few college memories are blurry :-) )

Cheers,
~Al
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
19 years 6 months ago #196

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Replied by stepryan on topic Re: hardware: a/d convertor circut?

albert,
wouldn't know much about this but here are two links you maybe interested.
radiosky.com/
radiojove.gsfc.nasa.gov/

on the radio sky there is some software called radio sky pipe that lets you use you pc's sound card . would that not achieve the same thing?. see below.
www.radiosky.com/skypipeishere.html
stephen.
19 years 6 months ago #199

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  • albertw
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Replied by albertw on topic Re: hardware: a/d convertor circut?

albert,
wouldn't know much about this but here are two links you maybe interested.
radiosky.com/
radiojove.gsfc.nasa.gov/

on the radio sky there is some software called radio sky pipe that lets you use you pc's sound card .


The radio jove site is depressing.... you spend hours getting youre head around something only to discover that schoolchildren wil a $100 kit understand more than you do :-)

Sky pipe is fairly good, though apparently sound cards are only good for certain types of observations. apparently `the audio bandwith isnt sensite enough on a soundcard`, and the card has to average the input its getting rather than having a clock on a chip give a discrete digital input. Its good for picking up meteors though I've only had limited success with that either, then again the hi-fi beside the PC probably isnt an ideal setup for radioastronomy :-)

That radiosky site looks interesting though.

Thanks,
~Al
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
19 years 6 months ago #206

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