Hi,
On 2014-01-14 15:23, Jiao Xianjun wrote:
Is there any information or hint on the settling time
after new
frequency set to dongle?
That depends a bit on the tuner and the sample FIFO of the RTL2832,
but you need to drop a few buffers, as the PLL of the tuner takes
some time to lock and stabilize.
Can I immediately read samples after new frequency is
set by
rtlsdr_set_center_freq? If so, will the samples quality be degraded?
Kyle Keen did some experiments for his scanning application
(rtl_power), and he settled for waiting a few milliseconds and
flushing the buffer to get optimal results. See here:
http://cgit.osmocom.org/rtl-sdr/tree/src/rtl_power.c#n626
Regards,
Steve