ni5660 Configure for IQ

[RF_Buzzer]

I am working a Packet Burst Tx-Rx system.
My Tx continously generates Packets of 800uS duration, with a gap of around 100uS in between Packets.

For my Rx, I am using ni5660 Analyzer.
With ni5660, I am using "ni5660 Configure for IQ" VI as an example file for my application with Carrier Frequency is 2.4GHz and Bandwidth is 20 MHz. with Immediate Triggering.

I want to capture all the packets that have been generated using ni5670 with the same Carrier Frequency of 2.4GHz and Bandwidth of 20 MHz.

If I have default time duration at 200uS, it captures packets but not all of my packets.. It misses a lot of the packets...
But if I enter more than 1 sec as time duration.. I get error that NI 5660/Tuner cannot initiate acquisition...

I also tried out using Software Trigger.. But the application slows down ....

Why cant I capture all of my packets which are being transmitted from ni5670... How should I synchronize my ni5670 with ni5660 for Packet Burst Transmissions so that I dont loose out packets...

Thanks in Advance.....

[Andy_Hinde]

Your 5620 digitizer has either 32 MB or 64 MB of onboard RAM. Since you are acquiring data at 64 MS/sec with 2 bytes per sample, this means with a 32 MB 5620 you can acquire 250 ms of data max and with a 64 MB 5620 you can acquire 500 ms of data max. One thing you could do would be to use a digital trigger output from the PXI-5670 to trigger the PXI-5660 acquisition.