Analyser includes DPX for live RF
07 July 2008
The SA2600 handheld real-time spectrum analyser has DPX waveform image processing for live RF views.
Digital RF signals carry complex modulation and change instantly, hopping frequencies and spiking before disappearing. Transient and time varying transmission techniques help FR devices, used in mobile comms and spectrum management, avoid interference, maximise peak power and can evade detection.
The analysers are designed to solve problems created by digital RF technologies including Wi-Fi, WiMAX, UWB and UMTS.
Tektronix has also announced that its H600 RF Hawk handheld unit now includes DPX waveform image processing. The real-time spectrum analyser can be used in the field and benchtop.
The two analysers extend the application of DPX to broader wireless technologies. DPX waveform imaging enhances productivity by capturing elusive anomalies and transient events for accuracy and insight and accelerating design debug.
The SA2600 has 10kHz to 6.2GHz frequency coverage, with 20MHz real-time bandwidth and -153dBm displayed average noise level for benchtop spectrum analyser performance in a battery-operated, handheld field unit. The spectrum processing is more than 100 times faster than any swept spectrum analyser, claims Tektronix. Both analysers provide 100 per cent probability of intercept for transients with minimum event durations of 500µsec on the SA2600 and 125µsec on the H600.
The models have what is claimed to be an intuitive set of user controls for quick and simple classification and location of analogue and digital RF transmissions. Integrated GPS and mapping tools mean that the interference location can be more readily identified. The user interface has a touch screen for navigation.
The two analysers display the live spectrum by processing >2,500 or >10,000 spectrum measurement/sec, respectively. To achieve this rate, the DPX uses dedicated, real-time hardware to process the incoming signal.
The waveform image processor also provides an intensity-graded persistence display that holds anomalies until the eye can see them to show the history of occurrence for dynamic signals and immediate feedback on signal variations over time. Engineers can see on screen both transients and signals that ordinarily could not be seen, either because they are masked by other signals or could only be deduced after offline analysis.
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