8 Feb
2018
8 Feb
'18
10:36 a.m.
On 02/07/2018 12:25 AM, Bill Gaylord wrote:
This has to do with the ordering of the set bandwidth
function I believe. (From my experience with it.) because you can set the bandwidth before
the freq is set the chip thinks you are trying to do stuff before the PLL is locked. Which
is actually true. But this has no real effect on the usage of device from what I can see.
Thanks for the reply.
In my case, when I use version v0.5git, I can only located 2 independent
GSM channels.
But when I use v0.5.3, I can locate 13 independent GSM channels.
I'm using a R820T from noelec
https://www.nooelec.com/store/nesdr-smart-sdr.html
I'll make sure I can reproduce the problem on Friday.
-- Cinaed
On Feb 6, 2018, at 10:53 PM, Cinaed Simson
<cinaed.simson(a)gmail.com> wrote:
Hi - there appears to be problem with rtl-sdr with bias T and the
RTL2832U OEM Rafael Micro R820T tuner.
I get PLL errors when I try to calibrate it using kal - or when I use
rtl_test.
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Exact sample rate is: 270833.002142 Hz
[R82XX] PLL not locked!
Setting gain: 33.8 dB
And I get the same error PLL when I run rtl_test.
If I back out of the latest git version to v0.5.3 it works correctly - I
can calibrate the dongle using kal and run rtl_test without any PLL errors.
This is a known problem?
-- Cinaed