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发表于 2008-5-20 21:53:32
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8820使用说明
一. 本说明书内容
1. 如何使用前面板和接口
2. 主要单元的安装
3. 屏幕和光标的基本操作
4. 参数的设定
5. 一般的功能和测量软件的一般使用
6. 基本的远程控制功能
7. 远程控制命令去控制一般功能
8. 性能测量和calibration procedures
二. MT8820A has the following features:
(1) Supports the third-generation mobile communication standards .
By installing measurement software, you can conduct a test of mobile terminals conforming to the third-generation communication systems.
(2) Possible to conduct transmission/reception characteristics measurement and call
test using a single MT8820A.
By installing measurement software, you can measure transmission/reception
characteristics and conduct a call-processing test with a MT8820A.
(3) High-speed measurement(高速的测量)
MT8820A, with state-of-the-art processors and a measurement algorithm, allows
high-speed measurement.
(4) Graphical user interface(图形使用接口)
The user interface employs the window system thus displaying specified
parameters and related measurement results on the same screen.
(5) Parameter save/recall(参数可保存和重现)
All the measurement parameters set to MT8820A can be saved as a file, which
eliminates the need for repeating similar setting for each measurement.
(6) Listing the function menu(在功能键上将功能列表出来)
You can use the Functions key to list the function menu for the current
screen or window. You can locate the target menu item at a glance.
(7) Remote control through the GPIB interface(通过GPIB径行远程控制)
You can use the GPIB interface to remotely control MT8820A from an external
controller such as a PC.
三. 标准配置
Main unit MT8820A
Standard Attachments 电源线 2.6M 操作说明书 Compact Flash card
PC card adopter
四. 8820的规格
Frequency range: 30 to 2700 MHz(频率范围 30~2700MHZ)
Maximum input level: +35 dBm (Main 1) (最大输入 Level +35Dbm)
Main 1 input/output connector
Impedance: 50 奥姆阻抗奥姆
VSWR 1.2 (<=1.6 GHz), <=1.25 (1.6 to 2.2 GHz), 1.3 (> 2.2 GHz)
Connector: N type
AUX 1 output connector
Impedance: 50 奥姆
VSWR ≤1.3 (when SG output level is ≤−10 dBm)
Connector: SMA type
Reference oscillator
Frequency: 10 MHz
Level: TTL
Activation characteristics: ≤5 10-8
(Using the frequency obtained 24 hours after power-on as a reference)
Aging rate: ≤2 10-8/day, ≤1 10-7/ year
(Using the frequency obtained 24 hours after power-on as a reference)
Temperature characteristics: ≤5 10-8
Connector: BNC type
External reference signal input
Frequency: 10 or 13 MHz (ppm)
Level: ≥0 dBm
Impedance: 50 Ω
Connector: BNC type
RF signal generator
Frequency
Frequency range: 30 to 2700 MHz (settable range: 0.4 to 2700 MHz)
Setting resolution: 1 Hz
By the accuracy of Standard Signal Generator
Output level
Level range: 140 to 10 dBm (Main 1), 130 to 0 dBm (AUX1)
Resolution: 0.1 dB
Level accuracy:
Main 1: 1.0 dB (-120 to 10 dBm, after calibration)
AUX 1: 1.0 dB (110 to 0 dBm, after calibration)
Signal purity
Non-harmonic spurious: 50 dBc (at offset frequency of 100 kHz or more,
except for [up frequency down frequency +
4.1825 GHz])
40 dBc (in ≥2.1 GHz, spurious at [4.8 GHz 
down frequency GHz])
Harmonics: ≤25dBc
Un-interruptable level variable
Variable range: 0 to 30 dB
Set resolution: 1 Db
五. Part number &function
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IP卡
狗仔卡
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡