- Buyers Guide
With the R&S ZNB and R&S ZNC Rohde & Schwarz claims to redefine network analysis with wider dynamic range, short measurement times and ease of use. The new analyzers featuring a dynamic range up to 140 dB, a sweep time of 4 ms with 401 points and good stability. They are designed for demanding applications in the production and development of RF components, particularly in the mobile radio and electronic goods industries.
The network analyzers cover the frequency ranges from 9 kHz to 3 GHz, 4.5 GHz or 8.5 GHz. Both the R&S ZNB and the R&S ZNC have a large touch screen that allows users to access all instrument functions with no more than three operating steps. The screen offers plenty of space for results, displaying even extensive measurements in a clear and straightforward manner.
The R&S ZNB, the more powerful of the two instruments, is said to provide development labs and production lines with performance characteristics previously found only in high-end analyzers. It covers the frequency range from 9 kHz to 4.5 GHz or 8.5 GHz and is available both in two-port and four-port models. Its wide dynamic range of 140 dB, low trace noise of 0.004 dB (RMS) and high output power of up to +13 dBm, which can be adjusted electronically in a range of 90 dB, provide fast and accurate measurements. This ensures high throughput in production.
It is suitable for measurements on high-blocking filters or amplifiers that must be manually adjusted on high-volume production lines where speed and efficiency are critical. The large touch screen is especially useful in this application. The network analyzer can also be used to characterize duplex filters, multiport DUTs, mixers or differential SAW filters for transmitters or mobile terminals.
The R&S ZNC with a frequency range from 9 kHz to 3 GHz is a cost-efficient alternative for users who do not have such high requirements regarding dynamic range and functional scope. It is available with two test ports and offers a sweep time of 11 ms with 401 points and a dynamic range of up to 130 dB. Its primary use is for testing passive RF components such as filters or cables.