Among the new features is the enhanced Over-the-Air (OTA) function, which includes new Transmission Tests for performing OTA measurements on an eNodeB transmitter when a direct connection is not possible. This makes the MS272xC/MT822xB the best field solution on the market for taking measurements on Remote Radio Heads (RRHs).
The OTA option also includes new coverage verification functions, allowing users to quickly determine the downlink coverage level in a specific location. Using five user-definable threshold levels, users can determine S-SS (Secondary Sync Signal Power), RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), and S/NR (Signal-to-Interference plus Noise Ratio). Based on this data, the new sweep measurement graph displays up to six LTE sectors on the device screen.
Other new features include Power relative to Resource Block, EVM Max Hold and Frequency Error Averaging, and EVM Auto Status, which are detailed below.
Power relative to Resource Block:
Power levels within the same LTE frame can be color-coded to accelerate and simplify analysis. The power measurement configuration can be adapted to spectrogram measurement, displaying the active percentage of resource blocks in use. This is ideal for detecting traffic and capacity issues. Users can also view channel power to compare utilization and power, thereby determining if there are any signal anomalies.
EVM Max Hold and Frequency Error Averaging:
With the new EVM Max Hold function, both EVM rms and EVM Max Hold can be measured. The Frequency Error Averaging function automatically prorates all measurements when more than one reading is selected.
EVM Auto Status:
Measurements are simplified with EVM Auto Status, as it performs EVM measurements on PBCH (Physical Broadcast Channel) or PDSCH (Physical Downlink Shared Channel) channels whenever data is available. In OTA mode, the analyzers automatically detect two reference signals in a MIMO configuration, thus confirming to the user that both the operation and the MIMO connection are correct.
With a frequency range extending up to 43 GHz and weighing approximately 3.5 kg, the Spectrum Master MS272XC series boasts the widest frequency coverage in its segment, eliminating the need to transport heavy benchtop spectrum analyzers to the field to measure signals above 20 GHz. The MS272XC Spectrum Master can be supplied with an optional channel scanner and interference analyzer for common field measurements, further reducing the need for multiple instruments.
The BTS Master MT822xB family comprises the high-performance MT8221B and MT8222B portable base station analyzers, specifically designed to support emerging 4G standards, as well as existing 2G, 3G, and WiMAX networks. Each analyzer incorporates over 30 integrated instruments within a robust, lightweight, and portable design capable of meeting virtually all measurement requirements.
