Im trying to implement a system that should change it’s normal
when another system with higher priority comes into play. For that, we
thought of two ways: changing the central frequency of our system of
interest and/or stopping the sending process automaticaly.
Im in charge of the latter, and for that I’ve found that maybe the
tagger” block could be of use. As far as I have understood, that block
SOB and EOB tags to the element that I’m about to send, and those are
understood in the UHD as metadata. Afterwards (and may be here is where
get a little bit confused or have the misconception of its
‘if the UHD receives an EOB tag, it turns of the transmitter until a new
SOB comes’. (I would also like to know if the part in between the
quotation marks is also right. I’ve checked the code for UHD sink and I
still dont have this part 100% clear).
Now, comes my main question and the reason why I think Im getting the
concept wrong: I apply a signal (sinus) at the first port of the burst
tagger and on the second I apply what would be my detection of the other
system. In order to see if the tags come or not, I connect at the output
the block a “Tag debug”, where I do can see that it is a ‘False’ tag
the trigger is <=0 and ‘true’ when it is >0. However, I still see the
signal being sent through the USRP.
I dont know if the sinus signal is not suitable for this test
or if actually the burst tagger does not do what I understood. If
has a clearifying opinion or remark I would really appreciate it. I’ve
checked some previous questions here in feeder and the example
was implemented as I did. Any comment will be highy welcomed.
Thank you in advance.