产品品牌：

美国EM公司

产品型号：

EM2135A

测量：

频率1%

测量范围：

0.5-18GHz

电源电压：

220 V

尺寸：

176x441x571 mm

重量：

18

重量：

18 kg

用途：

EMI场强接收机/分析仪

The EM-2135A Interference Analyzer performs emission and susceptibility testing to
MIL-STD-461, 462, FCC Part 18, plus other applicable military, government, and
commercial – both domestic and international – standards from 0.5 GHz to 18 GHz (to 40GHz optional).
The EM-2135A uses a built-in microprocessor to control the operation of the receiver
through information keyed in by the operator through the front panel. All front panel
controls are directly accessible from a computer through the IEEE-488 Bus (GPIB).
Computerized operation and special software writing are facilitated by the simplified
commands of the receiver for all control functions and its digitally-processed data
outputs.
The receiver uses LED displays to provide highly visible and accurate readings of tuned
frequency and signal strength. The frequency display is accurate to ±1.0% and the
amplitude display, which includes attenuation, is accurate to ±2 dB. Separate LED
displays enhance the main displays and indicate the frequency range in use and the level
of attenuation. To make tuning easier, the digital display of amplitude is augmented by a
front-panel analog meter.
Advanced detector circuits provide true average, direct-peak and slideback. The true
average detector provides the true (linear) time-averaged value of the amplitude of any
signals appearing at the RF input that are within its pass band. This feature allows for
valid analysis of certain types of EMI that would otherwise be misinterpreted by the
operator. The peak detector responds to the peak value of the logarithm of the bandwidthdefined
input signal and is calibrated in terms of the sinewave rms equivalent in dB. The
slideback peak detector is a rapid rise and decay detector is similar to an envelope
detector, but with the addition of a threshold level control.
Calibrated Spectrum Analyzer-type presentations are available by connecting the receiver
to a conventional oscilloscope. Sweep features include variable scan rate and variable
dispersion (0.1% to 100% of the octave band selected). Appropriate outputs for X-Y
plotting utilizing the above sweep features are also available.