This figure shows a zoom in on the last part of the data before emitter scans away.  During this period there is one additional emitter (Gen_Video1) active and the PRED is successfully de-interleaving the pulse trains as required. Also, the look throughs are happening every 3.81 ms (i.e. every 8 pulses) as expected.  When the desired emitter (Gen_Video2) does stop transmitting, the look through is extended to attempt to relocate the signal.  After (the user programmed) 5 Expected_Video pulses without a signal being detected, Lock is brought low and the receiver is left on (Look-through = high) in order to detect the emitter immediately when it returns. 

It is interesting to note that when Gen_Video2 stops transmitting, Gen_Video_1 is actually present but the PRED does not jam this emitter. 

Although the Gen_Video2 signal has scanned away, the PRED is maintaining the track file in case it returns.  This allows the PRED to perform a fast re-acquisition operation rather than having to fully acquire the pattern again.  In this case, Gen_Video2 has a scan time of 0.49 seconds and the signal does return.