Testing with the Tagsurance is based on performing the test on a wide frequency range. The standard Tagsurance operating range is 860 MHz – 960 MHz. In some cases, when testing an end product with low tuning effect in the end application, the standard frequency range is sufficient for testing the response of a tag.
The extended frequency range is a valuable tool in cases where further processing or the use environment is expected to tune the response. With the extended frequency range of 800 MHz – 1100 MHz, the Tagsurance provides visibility over the entire operating bandwidth of a typical inlay or a tag. This allows detecting the variance also far beyond the typical read frequencies.
Generally, UHF tags need an operating range from 860 MHz to 1000-1100 MHz (when tested on air), even though the readers most typically operate at ~866 MHz & 902-928 MHz ranges. When a tag is placed on a material, the tag sensitivity response is detuned to lower frequencies. For electrically light materials, like cardboard, the detuning is small ~20 MHz. Heavier materials, like plastics, can shift the tag response over 100 MHz, and even more challenging materials, like glass in windshields, can induce up to 200 MHz shift.