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租赁惠普 8921A 频谱分析仪

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产品参数

选件 状态 设备价值 是否计量
完好 0
成色 发货周期 所在地
8成新 -- 深圳市
租赁价格: 电议
更新日期:2021-06-12
联系电话:0755-86016691

*产品描述

简单介绍:

HP 8921A是一种高度便携式的集成解决方案,用于安装和维护AMPS和TACS单元站点。HP 8921A在紧凑的38磅包装中集成了20多种强大的仪器。HP 8921A中的集成IBASIC控制器运行HP 11807B单元现场测试软件,以完全自动化基站测试和调整过程。自动化与精确测量相结合,可提高技术人员的效率,从而加快安装和维护过程。


升级新格式

除了测试模拟AMPS和TACS基站,HP 8921A还可以根据您对数字蜂窝系统的测量需求进行扩展,并提供以下升级:

  • 时分多址
  • 码分多址
  • CDPD
  • PCS(17170-1990 mHz)
高性能频谱分析仪

HP 8921A的频谱分析仪具有宽动态范围和合成频率精度,以前只能在昂贵的独立频谱分析仪中找到。宽动态范围使HP 8921A在高功率发射器存在的情况下可以定位低电平信号。合成的频率精度意味着您可以找到正确的信号。

HP 8921A的频率范围从1 GHz到窄至5 kHz,可灵活查看整个RF频谱,然后放大所需的信号。标记功能可显示任何显示信号的频率和幅度。标记到峰值功能通过一次按键即可显示最大的屏幕信号的频率和幅度。


内置跟踪发生器

HP 8921A频谱分析仪还包括一个用于跟踪基站双工器的内置跟踪发生器。在输出功率为+13 dBm(超范围)的情况下,将跟踪发生器用作双工器的输入激励。频谱分析的校准水平可确保双工器的准确调整。使用频谱分析仪的标记功能,可以在滤波器响应的任何点测量双工器的抑制性能。可以使用HP 8921A跟踪发生器在现场快速准确地测量天线回波损耗。使用跟踪发生器通过外部VSWR桥驱动天线,可以在HP 8921A频谱分析仪上测量反射功率。使用跟踪发生器执行的其他测量包括插入损耗和滤波器,电缆或衰减器的频率响应。跟踪发生器具有从-137到+7 dBm的校准输出电平以及用于IF至RF转换测量的可变频率偏移。HP 8921A加上每分区频谱分析仪的范围1、2和10 dB,归一化和标记功能,使HP 8921A成为所有类型的测量和调整的理想选择。


自动化基站维护

对于复杂的基站维护,在HP 8921A的内部控制器上运行的HP 11807B基站现场测试软件将指导用户完成该过程的每个步骤。图形显示可显示连接图,并在需要时突出显示关键的调整点。使用HP 8921A电池现场测试仪,技术人员花费的时间更少,学习时间却更多。


另一个软件包HP 11807B选件120提供了AMPS系统信息。该软件使用HP 8921A扫描和解码本地控制通道,显示系统数据,并测量关键的变送器特性。

  • AM / FM信号发生器
  • AM / FM调制分析仪
  • 双工偏移发生器
  • 射频功率计
  • 射频频率计/频率误差计
  • 音频计数器和功率计
  • 交流/直流电压表
  • SINAD / SNR /失真仪
  • 两个变频AF发生器
  • 数字示波器
  • 内置IBASIC控制器
  • 带有跟踪发生器的频谱分析仪
  • 邻道功率计
  • 信令编码器和解码器
  • 高稳定性时基
  • 直流电流表
  • HP-IB / RS-232 /并行远程接口
  • 可升级到TDMA,CDMA,CDPD或PCS测试功能

详细信息

The HP 8921A cell site test set is a highly-portable, integrated solution for the installation and maintenance of AMPS and TACS cell sites.  The HP 8921A incorporates more than twenty powerful instruments into a compact, 38-pound package.  The integral IBASIC controller in the HP 8921A runs the HP 11807B cell site test software to fully automate base station test and adjustment procedures.  Automation combined with accurate measurements increases technician efficiency to speed installation and maintenance procedures.


UPGRADING FOR NEW FORMATS

Beyond testing analog AMPS and TACS base stations, the HP 8921A is ready to grow with your measurement needs for digital cellular systems with upgrades available for:

  • TDMA
  • CDMA
  • CDPD
  • PCS (17170-1990 mHz)


HIGH-PERFORMANCE SPECTRUM ANALYZER

The spectrum analyzer of the HP 8921A has the wide dynamic range and synthesized frequency accuracy previously found only in expensive stand-alone spectrum analyzers.  Wide dynamic range allows the HP 8921A to locate low level signals in the presence of high power transmitters.  Synthesized frequency accuracy translates into high confidence that you've located the correct signals.

With frequency spans ranging from 1 GHz to as narrow as 5 kHz, the HP 8921A has the flexibility to look at the entire RF spectrum and then zoom in on the desired signals.  The marker function displays the frequency and amplitude of any displayed signal.  The marker-to-peak function displays the frequency and amplitude of the largest on-screen signal with a single keystroke.


BUILT-IN TRACKING GENERATOR

The HP 8921A spectrum analyzer also includes a built-in tracking generator for tuning base station duplexers.  With +13 dBm power output (over range), use the tracking generator as an input stimulus to the duplexer.  The calibrated level of the spectrum analyze ensures accurate adjustment of duplexers.  Using the marker function of the spectrum analyzer, the rejection of the duplexer can be measured at any point of the filter response.  Antenna return loss can be quickly and accurately measured onsite with the HP 8921A tracking generator.  Using the tracking generator to drive the antenna through an external VSWR bridge, the reflected power can be measured on the HP 8921A spectrum analyzer.  Other measurements performed with the tracking generator include insertion loss and frequency response of filters, cables, or attenuators.  The tracking generator features calibrated output level from -137 to +7 dBm and variable frequency offset for IF to RF conversion measurements.  Coupled with 1, 2, and 10 dB per division spectrum analyzer ranges, normalization, and marker capability, the tracking generator makes the HP 8921A ideal for all types of measurements and adjustments.


AUTOMATED BASE STATION MAINTENANCE

For complex base station maintenance, the HP 11807B cell site test software, running on the HP 8921A's internal controller, guides the user through each step of the procedure.  Graphical displays show connection diagrams and highlight key adjustment points when required.  Technicians spend less time learning and more time testing with the HP 8921A cell site test set.


Another software package, the HP 11807B Option 120, provides AMPS system information.  The software uses the HP 8921A to scan for and decode local control channels, display system data, and measure key transmitter characteristics.

  • AM/FM signal generator
  • AM/FM modulation analyzer
  • Duplex offset generator
  • RF power meter
  • RF frequency counter/frequency error meter
  • Audio frequency counter and power meter
  • AC/DC voltmeter
  • SINAD/SNR/distortion meter
  • Two variable frequency AF generators
  • Digital oscilloscope
  • Built-in IBASIC controller
  • Spectrum analyzer with tracking generator
  • Adjacent channel power meter
  • Signaling encoder and decoder
  • High-stability timebase
  • DC current meter
  • HP-IB/RS-232/parallel remote interfaces
  • Upgradability to TDMA, CDMA, CDPD, or PCS test capability

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