Unable to set Center Frequnecy during Hop

[loca5790]

rtlsdr_demod_write_reg failed with -9 r82xx_write: i2c wr failed=-9 reg=17 len=1 r82xx_set_freq: failed=-9 WARNING: Failed to set center freq.

Trying to hop between frequencies of 315M and 345M and this message appears. If i run one center frequency I have no issues.

[gvanem]

On Windows? If yes, try to build with this RTLSDR library instead. It does not depend on the libusb junk.

[loca5790]

On Windows? If yes, try to build with this RTLSDR library instead. It does not depend on the libusb junk.

I am not on windows Ubuntu 22.04

built with rtl-sdr and running rtl_433

[csindle]

I get the same error message (on Ubuntu 22.04, with the distro's rtl-433 package version: 21.12-1), using a Flight Aware RTL SDR with built-in LNA.

rtl_433  -H5 -f433M -f868M

...
center_frequency: 868000000                        frequencies: 433000000, 868000000                     hop_times : 5
Allocating 15 zero-copy buffers
rtlsdr_demod_write_reg failed with -9
r82xx_write: i2c wr failed=-9 reg=17 len=1
r82xx_set_freq: failed=-9
WARNING: Failed to set center freq.

center_frequency: 433000000                        frequencies: 433000000, 868000000                     hop_times : 5
...

[zuckschwerdt]

That version is too old to diagnose. But there will be major changes to that part with #1978 soon and things might just work then.

[zuckschwerdt]

Any SDR parameter changes are now effected from a different thread, this should be faster and without any further problems.