Saturday, 12 June 2010

Spectral re-growth

This shows the spectral re-growth seen sending DVB-S when the Mitsubishi
RA18H1213G module is driven to about 7 watts output. This is using
the standard bias arrangement.

This is the output of the same module when transmitting about 1 watt of DVB-T
The rubbish on either side of the signal is due to the problem in the iFFT I
mentioned a few days ago. I have not figured out a way around it yet.

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