Re: Late packets when using set_time_next_pps and set_start_time with Function Probe

2021-12-29 Thread Manav Kohli
Yes, this is on a single USRP. I'll check the Python code to confirm the presence of set_start_time calls. The point about group delay in the up and downconverters is well understood. Theoretically the Rx could be started before the Tx - I am working with a real-time system so it would just

Re: Late packets when using set_time_next_pps and set_start_time with Function Probe

2021-12-29 Thread Marcus D. Leech
On 2021-12-28 23:04, Manav Kohli wrote: Dear Marcus, Thanks a lot for your reply and hope you are enjoying the Holidays. I am trying to have the Tx and Rx of a radio start at the same time. I (currently) need to have a well-defined, consistent sample offset between Tx and Rx in my flowgraph.

Re: Late packets when using set_time_next_pps and set_start_time with Function Probe

2021-12-28 Thread Manav Kohli
Dear Marcus, Thanks a lot for your reply and hope you are enjoying the Holidays. I am trying to have the Tx and Rx of a radio start at the same time. I (currently) need to have a well-defined, consistent sample offset between Tx and Rx in my flowgraph. When the Tx and Rx start is not important,

Re: Late packets when using set_time_next_pps and set_start_time with Function Probe

2021-12-23 Thread Marcus D. Leech
On 2021-12-23 00:30, Manav Kohli wrote: Hello, Hope everyone is doing well. I am encountering an issue regarding late packet arrivals when using Function Probe blocks to call set_start_time and set_time_next_pps. I have a flowgraph with a USRP Source and Sink and I am applying the

Late packets when using set_time_next_pps and set_start_time with Function Probe

2021-12-22 Thread Manav Kohli
Hello, Hope everyone is doing well. I am encountering an issue regarding late packet arrivals when using Function Probe blocks to call set_start_time and set_time_next_pps. I have a flowgraph with a USRP Source and Sink and I am applying the following two function calls to each (so four function