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Application Notes
Wireless applications are constantly evolving but for most R&D and manufacturing operations the inventory of test equipment is a relatively fixed set of assets. Test solutions must be evaluated and configurations chosen at time of purchase, with limited visibility of future needs. Nonetheless, the one constant of wireless is change, and for signal analyzers there are several approaches for adapting to evolving needs:
– Software updates can add measurement functionality, though these changes do not change fundamental equipment characteristics such as bandwidth, operating frequency range, and sensitivity.
– Existing instruments can be sold or traded as part of the process of purchasing new equipment with the required frequency range, bandwidth, etc. Unfortunately this approach can be expensive in terms of transaction costs and time, and disruptive in terms of inventory tracking when asset and serial numbers change. In addition, instrument changes can create problems with test program software compatibility.
– Modular test equipment can offer the opportunity to change fundamental equipment characteristics. In many cases separate modules are used to implement RF front ends, IF sections, digitizers, and more. New modules can meet new measurement needs, though their acquisition and management may involve similar processes to the purchase and trade of separate instruments as described above.
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