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0 pointskrapht3y ago0 comments

It would be way cheaper to design the radar detector to have better RF isolation than to go towards an SDR solution.

A modern radar gun operates in the Ka-band, Google says between 33.4 and 36 GHz. Assuming 12 bit samples, your proposed solution needs to process a minimum 3.9 gigabits per second, or ~500 megabytes per second. To do this work in software would require a workstation.

Not to mention I'm not even sure if you can operate most ADCs above the 1st Nyquist zone like would be needed here.

0 comments

d110af5ccf3y ago

> To do this work in software would require a workstation.

These days hardware capable of that throughput can be had for less than $500 and draws less than 50W. 3.9 gigabits really isn't all that much by modern standards.

j / k navigate · click thread line to collapse

0 pointskrapht3y ago0 comments

It would be way cheaper to design the radar detector to have better RF isolation than to go towards an SDR solution.

Not to mention I'm not even sure if you can operate most ADCs above the 1st Nyquist zone like would be needed here.

0 comments

d110af5ccf3y ago

> To do this work in software would require a workstation.

These days hardware capable of that throughput can be had for less than $500 and draws less than 50W. 3.9 gigabits really isn't all that much by modern standards.

j / k navigate · click thread line to collapse