Digital modulation

[Samuel_S]

Fil-leep

I hope this gets you going:

http://forums.ni.com/t5/LabVIEW/Turning-multiple-plots-on-a-graph-on-and-off-individually/m-p/145687...

https://decibel.ni.com/content/docs/DOC-15033

https://decibel.ni.com/content/docs/DOC-2171

https://decibel.ni.com/content/docs/DOC-13792

http://forums.ni.com/t5/LabVIEW/multi-plot-wave-form-chart/m-p/1501666?requireLogin=False

http://forums.ni.com/t5/LabVIEW/Turning-multiple-plots-on-a-graph-on-and-off-individually/m-p/145687...

I hope this gets you going 🙂

[fil-leep]

thank for the solution.i have another problem, i am using modulation toolkit to simulate fsk in fsk-modulation vi the carrier frequency is entered as numeral value what to know is the relationship between the two frequencies obtained after modulation because there is only one input terminal for carrier frequency but at the output there are two different carrier frequencies.

[Samuel_S]

fil-leep,

I'm so glad that I was able to help you 🙂 

Just so we can perform some house keeping and keep all threads in the forums as close to the same issue. I would ask that you make a new discussion forum for the new question and mark the solution to your digital modulation question so that other members may be able to find it as well if they have a similar question 🙂

[ratatouille]

Hello everyone

I am trying to do a simple FSK. in most all the examples, the signal is already modulated.

I am trying to the following but having a hard time:

1. enter series a binary data: 011100011 (continous generation)

2.transform this binary data to square wave (grapgh)

3.have a carrier sine wave with frequency let's say 16000hz (graph)

4.modulate both sigal (graph)

5.demodulate

I am probaly guessing that I will need a counter for each bits.

if anyone can give a clue how to get started that will be great.

thanks already

[A_Donfigulation_Error_Has]

Hi Ratatouille

Generally when you have a new issue, it's best to just start another post in the forums, this way it is easier for people to help you. What kind of modulation were you trying to accompish in step #4? Also if you are continuously outputting either 0's or 1's you should be able to write the data to a waveform graph to see square waves. If you want it to come out as a waveform at discrete time intervals, I would put it into a loop with a timer.

[ratatouille]

hi jason.lii

In step #4 i am trying to do FSK modulation.

thank you for the tips

Ratatouille

 

[Aaron O]

Ratatouille,

Do you mind showing where you are at in your currently application? Have you been building off of an online example? Are you using NI drivers for this, and if so, which ones? Is your development environment LabVIEW or something else? Are you using NI hardware? 

Any detailed information you can provide will help us determine what we can do to help you.

Regards,

Aaron