Re: [USRP-users] SC8 Wireformat

2018-06-25 Thread Dan CaJacob via USRP-users
Just speculating, but I wonder if what you're seeing is a result of quantization error... On Mon, Jun 25, 2018 at 11:55 PM Farhad via USRP-users < usrp-users@lists.ettus.com> wrote: > Thanks Ian for your answer; but my main question still remains unanswered > which is why with different wire form

Re: [USRP-users] SC8 Wireformat

2018-06-25 Thread Farhad via USRP-users
Thanks Ian for your answer; but my main question still remains unanswered which is why with different wire format sc8 and sc16 the spectrum is different? How may I interpret this? Thanks, > On Jun 25, 2018, at 9:44 PM, Ian Buckley wrote: > > On a USRP2 thats a harmonic of the on-board 100MHz

Re: [USRP-users] SC8 Wireformat

2018-06-25 Thread Ian Buckley via USRP-users
On a USRP2 thats a harmonic of the on-board 100MHz clock. One excellent way to deduce when you are dealing with a spur thats LO related is to use offset tuning to move the LO relative to the center of your band of interest. See: https://files.ettus.com/manual/structuhd_1_1tune__request__t.html

Re: [USRP-users] SC8 Wireformat

2018-06-22 Thread Marcus D. Leech via USRP-users
On 06/22/2018 05:43 PM, Farhad Mirkazemi via USRP-users wrote: Hello all, I'm recording RF signal at 1.5 GHz using usrp2 with wbx daughterboard of fixed BW of 40 MHz; since I'm interested to capture the whole BW, I set the over-the-wire format to sc8 to be able to have 50 MSps rate; as examp

[USRP-users] SC8 Wireformat

2018-06-22 Thread Farhad Mirkazemi via USRP-users
Hello all, I'm recording RF signal at 1.5 GHz using usrp2 with wbx daughterboard of fixed BW of 40 MHz; since I'm interested to capture the whole BW, I set the over-the-wire format to sc8 to be able to have 50 MSps rate; as example rx_samples_to_file suggests, there is no "byte" or "char" forma