[hpsdr] [OT] Rohde & Schwarz I/Q Modulation test Generator AFQ100A

[Ken - N9VV]

Cool - I/Q signal generation test gear :-)

<URL: 
http://www.rohde-schwarz.com/www/dev_center.nsf/frameset?OpenAgent&website=com&navig=/www/dev_center.nsf/html/nav,10,11,111,1117&content=/www/dev_center.nsf/html/afq100a 
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Key Facts

Digital communications systems are rapidly evolving today, calling for 
test equipment that can meet the new challenges they present.

An important component of such test equipment is a flexible baseband 
source that allows development and production tests to be performed on 
state-of-theart receivers for a variety of standards. A self-contained 
baseband source must fulfill a wide range of signal requirements. Plus, 
it needs variable digital and analog outputs in order to directly 
operate the DUT. Used as a modulation source for vector signal 
generators, the R&S AFQ100A provides I/Q signals that offer all the 
sophistication of modern communications standards for generating the 
required RF signal.

     * Broad scope of applications
           o Variable memory clock rate (1 kHz to 300 MHz) can be 
optimally adjusted to the useful signal
           o Maximum I/Q bandwidth of up to 100 MHz for an RF bandwidth 
of 200 MHz
           o Long signal duration at 256 Msample or 1 Gsample
           o Analog I/Q outputs (balanced and unbalanced) and optional 
digital outputs
           o Variable output level at the analog outputs
           o Multisegment waveform reduces switching time between 
different signals; no reloading required
           o Optimum memory use due to integrated clock rate converter 
and memory granularity of 1
           o Shiftable markers without disrupting and recalculating the 
output signal

     * Outstanding signal quality
           o Excellent spurious free dynamic range (SFDR) of typ. 83 dBc 
(1 MHz signal at 100 MHz bandwidth)
           o Frequency response typ. 0.05 dB across 100 MHz I/Q bandwidth
           o Versatile impairments
             - Settable skew with 10 ps resolution to allow exact 
adjustment of different cable lengths
             - Gain and offset for I and Q can set independently
             - Phase error
           o Loadable equalization to compensate for external components 
such as I/Q modulators
             (minimum frequency response in realtime across all 
components involved)
           o Adjustment of DC offsets by biasing the differential I/Q 
outputs

     * Connectors and operation
           o Remote control via GPIB, USB and LAN
           o User interface via external monitor or Windows XP Remote 
Desktop
           o R&S WinIQSIM™ for controlling the R&S AFQ100A and 
generating test signals in line with different standards
           o Direct control via MATLAB®
           o USB connectors for USB equipment (keyboard, mouse, memory 
stick)