[time-nuts] time/sampling behavior of RTL-SDR

Scott Stobbe scott.j.stobbe at gmail.com
Tue Mar 7 22:01:26 EST 2017

I bought one awhile back from a company called NooElec as more of a novelty
item than anything. But I can say it runs quite hot and if you tune to the
3rd harmonic of a 10 MHz reference it takes a while to thermally stabilize.
In hindsight spending the extra 3-4 dollars for one with a TCXO would have
been worthwhile.

On Tue, Mar 7, 2017 at 4:08 PM, jimlux <jimlux at earthlink.net> wrote:

> Has anyone ever looked at the timing consistency/behavior of the cheap
> RTL-SDR dongles?
> That is, if you feed a sine wave in and get the samples out via the USB
> interface, are there missing samples?  What's the ADC clock look like?
> If you had two of them, and you determine the relative phase of them at
> some time t0, and you let it run for minutes, how far will it have moved?
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