This user guide is specific to the BTS Master MT8221B. Additional instrument functions and descriptions of optional measurement capabilities are described in measurement guides. Refer to Measurement Guides for a list of these guides and their Anritsu part numbers.
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The MT8221B BTS Master is an integrated multi‑functional base station test tool that eliminates the need to carry and to learn to use multiple test sets. The MT8221B measurement capabilities include: spectrum analyzer smart measurements, precision return loss, VSWR, cable loss, distance‑to‑fault, two port gain/loss, one‑port and two‑port magnitude and phase, interference analysis, spectrogram, and power meter.
RF, advanced demodulation, and over‑the‑air (OTA) measurements can be applied to WCDMA/HSDPA, GSM/GPRS/EDGE, Fixed WiMAX, Mobile WiMAX, CDMA and EVDO, DVB‑T/H, TD‑SCDMA, LTE, and TD-LTE.
Additional capabilities include a Vector Signal Generator (VSG), GPS location information, enhanced frequency reference oscillator accuracy, T1 measurements (including Vpp), E1 ‑ 2 Mb/s measurements, T3 measurements, and listening to DS0/VF channels.
The BTS Master base model has cable and antenna analysis (MT8221B: 400 MHz to 4.0 GHz, MT8222B: 400 MHz to 6.0 GHz), spectrum analysis (150 kHz to 7.1 GHz), and an internal power meter (10 MHz to 7.1 GHz). The cable and antenna analysis is performed by a Vector Network Analyzer that is designed to make accurate vector‑corrected 1‑port and 1‑path, 2‑port magnitude and phase measurements from 400 MHz to 6 GHz.
The MT8221B BTS Master is also a synthesizer‑based spectrum analyzer that provides quick and accurate measurement results. Measurements can be easily made by using the main instrument functions: frequency, span, amplitude, and bandwidth. Dedicated keys for one‑button measurements of field strength, channel power, occupied bandwidth, Adjacent Channel Power Ratio (ACPR), and Carrier to Interference Ratio (C/I) make the handheld MT8221B the ideal choice for the field. A familiar calculator‑type keypad allows for fast data entry.
In transmitter analyzer mode, the MT8221B BTS Master displays 6 markers and the marker table in Code Domain Power and Codogram displays. In Spectrum Analyzer mode, a full range of marker capabilities (such as peak, center, and delta functions) are provided for faster, more comprehensive analysis of displayed signals. Upper and lower multi‑segmented limit lines are available to create quick, simple pass/fail measurements. A menu option provides for an audible alert when a limit value is exceeded. A vertical line marker is available with the histogram displays of BERT measurements in the T1/T3 Analyzer. Markers are not available in GSM mode.
Time and date stamping of measurement data is automatic. The internal memory provides for storage and recall of traces and measurement setups. The bright daylight‑viewable, high‑resolution, color liquid crystal display (LCD) provides easy viewing in a variety of lighting conditions. The BTS Master is capable of approximately 2.5 hours of continuous operation from a fully charged battery and can be operated from a 12 VDC source, which also simultaneously charges the battery.
Anritsu Master Software Tools (MST), a PC‑based software program, provides a convenient means for storing measurement data. Master Software Tools can also convert measurements from the BTS Master display into several graphic formats. Master Software Tools supports all of the options that are provided with the BTS Master.
Measurements may be stored in internal memory or in a USB Flash drive. Stored measurements can be downloaded to a PC by using the included USB and Ethernet cables. After being stored, a graphic trace can then be displayed, scaled, or enhanced in Master Software Tools with markers and limit lines. Historical graphs can be overlaid with current data by using the PC mouse in a drag‑and‑drop fashion. The underlying data can be extracted and used in spreadsheets or for other analytical tasks.
Note
For USB storage, not all after‑market USB drives are compatible with the instrument. Many drives come with a second partition that contains proprietary firmware. This partition must be removed. Only one partition is allowed. Refer to the individual manufacturer for instructions on how to remove it. Some drives can be made to work by reformatting them using the FAT32 format.