VSG packet burst

[Paul Beard]

Up and running in less than a minute. So far, fantastic.

I need to generate packets though, not continuous transmissions.

How can I do this ?

1Mbps, 376bits, GFSK +/-420kHz BTb 0.6 1 376bit packet every say, 100ms?

Thanks for a great product.

Paul

[Andrew]

Hi Paul,

Thank you for the feedback.

Currently through the standard software interface it is only possible to set a period with the ARB setup. This may not be practical for you unless you know how to generate your waveform though. With the ARB setup, you can select a period for your waveform up to 64k samples. So the period length would be limited by the sample rate. We have had another request for this functionality, so I believe we will be adding the period parameter to the standard modulation setup in the near future.

Regards,
A.J.

[Paul Beard]

Thank you for the reply.

One more question, Modulation depth has no units. What do I need to set this to for say, a +/-325kHz DOM ?

Paul

[Andrew]

Hello Paul,

The modulation depth for FSK is the ratio of the frequency deviation to modulation frequency. A more common term for it is modulation index.

e.g. If modulation depth is set to 0.5, then the frequency deviation will be 1/2 of the symbol rate frequency.

Regards,
A.J.

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