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Voltmeter Mode for Handheld Cable and Antenna Analyzer
27 April 2015 – Anritsu introduces a Vector Voltmeter Mode (VVM) for its Microwave Site Master S820E – a handheld cable and antenna analyzer offering coverage up to 40 GHz – that allows the S820E to be used as a drop-in replacement for legacy Vector Voltmeter instruments. With the ability to provide full A/B and B/A ratio capability without additional and expensive VNA options, the S820E with the VVM provides field engineers and technicians with a compact, durable, cost-efficient single-instrument solution to make key field measurements to ensure the proper deployment, installation, and maintenance of wireless networks.
The Site Master S820E combines leading-edge performance, functionality, reporting, and durability to meet the most demanding field testing requirements. It is the only handheld field solution with a VVM option specified to 40 GHz, – 20x more than current alternative solutions. When using the A/B and B/A ratio capability, a unique Auto-tune feature allows the S820E to successfully lock onto an external reference source signal that can be as much as ± 100 kHz away from the selected tuned frequency, without having to widen the measurement IFBW or establishing common 10 MHz reference time-base signals. Input sensitivity for either the A or B reference receiver ranges automatically from +5 dBm to –60 dBm, surpassing the range of traditional vector voltmeters.
The S820E can measure 1 DUT or the user can select a table display format, which allows up to 12 DUTs to be displayed simultaneously. All 12 DUT measurements may be made relative to a stored reference measurement. The table display format simplifies matching multiple DUTs, and is well suited for multi phased-array antenna systems, or when several DUTs need to be measured and matched to each other or a reference DUT response.
Reflection and/or transmission measurements made in VVM mode may be vector error corrected via the calibration process and do not require an external CW source or bridges, couplers, or splitters. This allows absolute DUT measurements and external peripheral items, such as test port extension cables and adapters, to be compensated for as part of the calibration. Any errors caused by mismatches between the instrument and the DUT are removed, as well.
In addition to the table display format, the Site Master S820E VVM option offers numerous data display formats for greater flexibility and ease of comparison to measurements made with other instruments. The flexible display format also provides simpler integration into reports and spreadsheets for post-processing purposes. Users can change the display format at any time and all of the results (live or stored) will simultaneously change in correspondence.
The Site Master S820E has been developed specifically for field applications. Compactly designed, the analyzer measures 250 x 177 x 61 mm and weighs <3.0 kg, and has a field-proven durable housing that can withstand harsh environments. An Active Thermal Management feature helps the S820E achieve the fastest warm-up time and to easily maintain stable operating temperatures across the entire operating range of -10°C to +55°C. New efficient circuitry delivers >4 hours of battery life.
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