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@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

On 02/08/2018 11:06 PM, Patrick Strasser-Mikhail wrote:

Hi!

With 'git bisect' you can possibly track this down to a single commit.

BR

Patrick

Great - I was wondering how to do that without checking out every commit since v0.5.3! Thanks.

-- Cinaed

Am 8. Februar 2018 10:36:26 MEZ schrieb Cinaed Simson cinaed.simson@gmail.com:

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@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

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