Hello, I am trying to collect serveral data sets through USRP X300's. Assume each collection is 1000 samples long and is initiated by a user typing a button on the keyboard. Each time the user hits a key 1000 samples are collected and stored to a file. The time between each collect is defined by the user hitting the key.
I need to make sure the USRPs are not loosing carrier lock between these collections. I want the USRPs to stay locked to whatever center frequency is set and sit there for the length of the time the user wants to collect data sets. What is the best way to ensure this? For example, if I use GNU Radio and head blocks feeding into file sinks with calls to tb.start and tb.stop, does the call to tb.stop cause the USRP to forget the carrier it was locked to and start over again on the next call to tb.start? Can I call tb.start multiple times without a call to tb.stop? Thank for any help you can provide.
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