Analyzer delivers lab-level performance for less than $1,500
There are a number of low-cost spectrum analyzers touted on the Web that engineers wouldn’t want anywhere near there lab bench. But even though it’s priced starting at $1,295, the DSA815 isn’t one of them — the instrument provides a level of measurement performance that sophisticated users would expect to find only in instruments costing up to 10 times as much from big-name manufacturers.
The DSA815 spectrum analyzer covers the range from 9 kHz to 1.5 GHz. Its displayed average noise level (DANL) with preamp on is typically −130 dBm from 100 kHz to 1 MHz and −135 dBm from 1 MHz to 1.5 GHz. Offset phase noise is −80 dBc/Hz at 10 kHz, and level measurement uncertainty is <1.5 dB. Further, the analyzer has a wide range of standard functions, including AM/FM demodulation and a preamplifier, plus a variety of optional enhancements such as an EMI filter and quasi-peak detector kit. A 1.5-GHz tracking generator is also offered as a factory-installed option for swept-spectrum measurements.
Key to the instrument’s performance is its all digital IF design, which gives it the ability to measure smaller signals, distinguish between small signals by frequency, and provide high-precision amplitude readings. Further, the design provides higher reliability than traditional analog designs and speeds measurement.
As one would expect in a professional instrument, the analyzer has LXI Class C and USB ports, and can be remotely programmed and controlled. GPIB is also an option. ($1,295; $1,495 with tracking generator — available now.)
By Richard Comerford
RIGOL Technologies , Oakwood Village , OH , United States
Information 440-232-4488
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