Ultra-portable RF spectrum analyzers for field engineers don't have to be unaffordable. You may want to consider the new 6-20 GHz devices that Avision has introduced to its line of ultra-portable handheld microwave spectrum analyzers.
When using a modular digitizer to measure mechanical equipment, a variety of sensors are required to facilitate the conversion of mechanical parameters (such as force, acceleration, pressure, speed, etc.) into electrical signals that you can test. The key to choosing a digitizer is to have enough bandwidth, number of channels, and dynamic range to handle the sensors. digitizerNETBOX with 16-bit resolution supports a dynamic range of 96 dB and provides up to 16 analog input channels.
Spetrum offers 14- and 16-bit resolution, segmented storage with FIFO readout, PCIe, PCI, PXI, LXI form factors, sample rates up to 10GS/s, bandwidths over 1.5GHZ and continuous data streaming to RAID disk series at speeds up to 3GB/s.
