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4 Posts authored by: nermash
In the previous blog I explained the creation of complex RF digital waveforms on the 33622A generator. I thought that it would be nice to use these signals in a sort of real world scenario, and maybe push it a little bit further.   So, I devised a small experiment. 33622A will be the source of the signal, QAM64 modulated carrier at 49 MHz (and three others at frequencies below that), 5120 ksymbols/s symbol rate and channel bandwidth od 6,4 MHz. That signal is fed into a fiber optic node, s ...
After creating baseband IQ data, the next step in my test setup was to take these signals into a IQ modulator, which was supposed to produce RF modulated QAM signal in band between 20-65 MHz, in compliance with DOCSIS 2.0/3.0 standard, used in cable TV systems return path (upstream) for two way communication link and Internet access.   However, Murphy got me and I discovered that the modulator does not work anymore. What to do now? I immediately thought of more than adequate 120 MHz of an ...
One of the features of the new 33600 and also the previous 33500 series of arbitrary generators is easy creation of baseband I and Q signals. I was interested in this, so I explored this a little bit. The first choice is obvious, Agilent has an option for 33600A series of 2 channel generators that will easily allow you to play baseband IQ signals. This option is called IQ Signal Player and it costs around 900 US$.   If that is a bit above your budget and you have access to Matlab package ...
This is the first blog post of my Agilent 33622A arbitrary waveform generator Roadtest review. Initial impressions review is at: http://www.element14.com/community/roadTestReviews/1759   One of the prime features of Agilent's 33600 and 33500 series of arbitrary generators is the proprietary Trueform technology. According to Agilent claims, it bridges the world of DDS (direct digital synthesis) and PPC (point per clock) arbitrary generators, bringing the almost PPC like signal generation, w ...

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