Frequency hopping

[Eldokch]

I want to be able to give to the transmitter a range of frequency and a specific time for hopping.

for example from 860M to 960M and time for each hop is 1ms for example...how can i do that ?

To the transmitter not the reciever

[James-B]

Hey Eldokch,

You can change the carrier frequency of the transmitted signal on the fly with a property node and the "Configuration->Carrier Frequency property.  Also, this post has some good links to other people doing frequency hopping.

http://forums.ni.com/t5/LabVIEW/How-can-I-implement-frequency-hopping/td-p/1930487

[hungth91]

Hi Jim B

We're constructing a frequency hopping system (transmitter and receiver). Can you give me advice about?

1. Modulation method. We're thinking about FSK and PSK.

2. Synchronization protocol in current system at receiver.

Best regards

Hung

[Alex.W]

Hello Hung,

If you are asking new questions we generally ask customers to begin new forum posts.

To address your questions:

1. LabVIEW Modulation Toolkit comes with example programs for FSK and PSK modulation schemes which you could combine with the methods above to change the carrier frequency of the signals.

2. Regarding synchronization this is a pretty broad topic. I have included some links below that I think you may find helpful.

https://forums.ni.com/t5/USRP-Software-Radio/USRP-Time-and-phase-synchronization-for-source-localiza...

https://forums.ni.com/t5/USRP-Software-Radio/Synchronizing-carrier-frequency-of-two-USRPs/td-p/19903...

I hope this helps get you started on your project.