Thomas, thanks for file.
But, may be you know, how to convert it to *.cfile for tx_samples_from_file.exe?
Here attached zip with example of *.cfile which Alexander made for me in somewhere like MathLab, I think so.
Rename zi_ to zip first.

Alexander, may be you know and then you can convert this file or part of it?

>> Overall measurements are close (either above or below) to 1.5/5 for
>> the 900 band in general. 945 MHz is currently the best case, but that
>> is the frequency I spent the most time on with calibration. Do we need
>> to be consistently below 1.5/5 or just close?
>
> Thanks for the measurements. At the end we should be below that at all
> GSM bands. For now it's fine to be close.
>
> I also noticed that your frequency is far off - could you calibrate it
> and make pictures of the best and worst case in the 900 band?

Perhaps this is a silly question, but how do I calibrate the clock? or
use an external reference signal?
 
Actually you can tune LMS frequensy with 1Hz step to compensate known error.

Best regards,
Andrey Sviyazov.