On 02/05/2024 08:25, Olo via USRP-users wrote:
I got 8GHz info from:
https://www.rtl-sdr.com/hackrf-sweep-spectrum-analyzer-windows/
I want to express my gratitude for your prompt responses and
assistance thus far. Your support has been valuable.
However, I have a specific query regarding optimizing performance for
a particular goal. In the GitHub repository under
*uhd/host/examples/twinrx_freq_hopping.cpp*, you mentioned the
importance of directly setting the LO frequency for better
performance. Additionally, you described a method of accessing the LO
wherein one LO is set for transmission while another operates for
reception simultaneously. Is this recommended way to make sweep
spectrum (with x310)?
I didn't write twinrx_freq_hopping.cpp, and furthermore, it has no
transmit capability at all.
I'm curious if there are more such techniques or tricks to achieve
optimal performance.
Thank you once again for your attention to this matter.
Given that the X310 supports 2 TwinRX cards, that could give you up to
200MHz of instantaneous bandwidth if each channel
(2 channels per TwinRX) is delivering 50Mhz of bandwidth. With
5msec/hop (as shown in twinrx_freq_hopping), that's
40GHz/second.
Olo
On Wednesday, May 1st, 2024 at 20:42, Olo via USRP-users
<usrp-users@lists.ettus.com> wrote:
Would it be possible, with the USRP X310 with TwinRX (or two TwinRX
units), to achieve the mentioned goal? If so, could you please
explain the approach to accomplish this? Thank you.
On Tuesday, April 30th, 2024 at 9:20, Olo <olo1...@protonmail.com> wrote:
Hi there,
I'm USRP B210 for a project. I'm trying to make a sweep spectrum
analyzer that scans frequencies quickly. Currently, I'm tuning
frequencies like this (which is I think the main issue):
tune_request = uhd.types.TuneRequest(self.steps[self.i], 1.0)
result = self.usrp_device.set_rx_freq(tune_request, self.rx_info.ch)
I'm programming it in PyQt, and I've created a stream like this:
self.stream_cmd_start =
uhd.types.StreamCMD(uhd.types.StreamMode.num_done).
(Because I've noticed that for a continuous stream, it takes
eternity to retune.)
Do you have any tips on how to do this faster? Any advice or code
examples would be really helpful.
Thanks a lot,
Olo.
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