But it should. This is basic functionality that is completely broken. The
commit to fix it is simple.

On Fri, Feb 9, 2024 at 10:06 AM Marcus D. Leech <patchvonbr...@gmail.com>
wrote:

> On 09/02/2024 09:07, Rob Kossler via USRP-users wrote:
>
> This is fixed in 4.5 and 4.6.  Are you able to switch?
> Rob
>
> I'll add that it's unlikely for the fix to get back-ported to 4.4 at this
> point.
>
>
>
>
> On Fri, Feb 9, 2024 at 5:04 AM <sp...@hs-bremen.de> wrote:
>
>> Hi,
>>
>> I am facing the same problem.
>>
>> I am on a Linux machine and hardware is an X300 with a UBX160.
>>
>> When I am above 500 MHz the actual carrier freq becomes about 2000 MHz
>> smaller.
>>
>> I checked it with the uhd example script  tx_waveforms that comes with
>> the uhd install. Below is the output. Note that actual frequency is
>> negative. There is no output at 915 MHz on a spectrum analyzer. Below 500
>> MHz everything is fine.
>>
>> Same happens when using Gnuradio.
>>
>>  Thanks
>>
>> Soren
>>
>>
>> ------------------------------
>>
>> $ ./tx_waveforms --freq 915e6 --rate 5e6 --gain 0
>>
>> Creating the usrp device with: ...
>> [INFO] [UHD] linux; GNU C++ version 13.1.0; Boost_107400;
>> UHD_4.4.0.0+ds1-4
>> [INFO] [X300] X300 initialization sequence...
>> [INFO] [X300] Maximum frame size: 1472 bytes.
>> [INFO] [X300] Radio 1x clock: 200 MHz
>> Using Device: Single USRP:
>> Device: X-Series Device
>> Mboard 0: X300
>> RX Channel: 0
>> RX DSP: 0
>> RX Dboard: A
>> RX Subdev: UBX RX
>> RX Channel: 1
>> RX DSP: 1
>> RX Dboard: B
>> RX Subdev: Unknown (0xffff) - 0
>> TX Channel: 0
>> TX DSP: 0
>> TX Dboard: A
>> TX Subdev: UBX TX
>> TX Channel: 1
>> TX DSP: 1
>> TX Dboard: B
>> TX Subdev: Unknown (0xffff) - 0
>>
>> Setting TX Rate: 5.000000 Msps...
>> Actual TX Rate: 5.000000 Msps...
>>
>> Setting TX Freq: 915.000000 MHz...
>> Setting TX LO Offset: 0.000000 MHz...
>> Actual TX Freq: -1085.000002 MHz...
>>
>> Setting TX Gain: 0.000000 dB...
>> Actual TX Gain: 0.000000 dB...
>>
>> [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
>> Setting device timestamp to 0...
>> Checking TX: TXLO: locked ...
>> Press Ctrl + C to stop streaming...
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>
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