The Advantest R3272 spectrum analyzer is a wide band, very sensitive receiver. It works on the principle of "super-heterodyne receiver" to convert higher frequencies (normally ranging up to several 10s of GHz) to measurable quantities. The received frequency spectrum is slowly swept through a range of pre-selected frequencies, converting the selected frequency to a measurable DC level (usually logarithmic scale).
Up to four "dialog-box" type measurement windows can be displayed simultaneously. This allows multiple signals and measurement parameters to be viewed at the same time. For example, the R3272 can display a transmitter signal in one window, while adjacent channel characteristics are monitored in two other windows. This capability gives the user more measurement information and presents it in a highly meaningful way. The instrument also features 10 active markers which simplify evaluation of all signal characteristics. Measurements of adjacent channel power, occupied bandwidth and harmonic levels can be performed at the touch of a button, without the need for manual calculation.
2个PCMCIA口可存储数据也可升级仪器软件（In addition to the PCMCIA interfaces, a broad array of application-specific measurement routines are stored in ROM, which eliminates the need to upload application programs from external mass storage devices.）
R3272 Utilizes Direct Digital Synthesis
The R3272 is the first spectrum analyzer in its price/performance range to utilize Direct Digital Synthesis (DDS), which ensures the highest level of spectrum accuracy throughout the measurement range. DDS also saves time by reducing the need to use a frequency counter for accurate measurements. The instrument's 100 dB display dynamic range and 300 Hz to 5 MHz resolution allow even the most complex signals to be evaluated.
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CW模式：频谱测量，OBW/ACP/HARM测量
频率范围：9k-26.5GHz
最小Span：2 kHz
输入阻抗：50 Ohm
频率参考准确度：±2x10-8/day,±1x10-7/year
频率稳定度：残留调频（zero span)＜3Hz x Np-p/0.1sec
扫频时间：50 ms-1000 s
精确度：±5％
扫频触发模式：Free run,line,single,video,external
带宽解晰度范围：300Hz to 3 MHz,5MHz(1,3,5步进）
精确度：±20％(RBW 1kHz-1MHz),±30％(RBW 300Hz,3MHz,5MHz)
选择性：＜15:1(300Hz-5MHz)
视频带宽范围：1Hz to 3MHz，5MHz(1,3,10步进)
振幅测量范围：+30dBm 显示平均噪声电平
显示范围：10x10方格图界面
调制方式：调频和调幅
Marker暂停时间：100ms-1000s
Minimum Single-Side-Band Noise -110 dBc/Hz
Maximum Single-Side-Band Noise -100 dBc/Hz
最小显示的平均噪声：-110 dBm
最大显示的平均噪声：-70 dBm
最大幅度的不确定度：15 %
大屏幕 256色 TFT LCD
数据存储类型：PCMCIA
GPIB接口
VGA接口
打印接口
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