二手回收Agilent 346C也销售Agilent 346C

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Agilent Technologies Noise Sources:
346C and N4002A
(All Serial Numbers)
346C 噪声源，10 MHz 至 26.5 GHz，额定 ENR 15 dB

（一）主要特性与技术指标
-------------------------------------------------
频率范围：10 MHz 至 26.5 GHz
电压驻波比：< 1.35:1
连接器：BNC（阴头）输入偏置/3.5 毫米（阳头）
低 SWR 适用于降低噪声系数测量的不确定度
特定频率下单独校准的 ENR 值
校准程序通过软盘提供，可轻松地载入到 NFA 系列噪声系数分析仪

（二）描述
-----------------------------------------------------
Keysight 346C 噪声源是是德噪声系数解决方案的理想协同工具。由于它是宽带噪声源（10 MHz 至 26.5 GHz），所以无需在不同频段上使用多个信号源。噪声源的低 SWR 可以减少测量不确定度的主要来源，即测试信号的反射。选件 K01 是同轴噪声源，与 2.4 毫米同轴连接器搭配使用，其工作频率范围可达到 1 至 50 GHz。

Table 1 Replacement Parts List
The replacement bulkheads and cartridges listed in Table 1 are tested in the factory to determine the bias current level 
necessary to ensure that the product meets ENR specification. 
For the 346C, bias levels are determined by installing the appropriate resistor value for R2 and R3 on the printed 
circuit board (Figure 1- 00346-60034). The appropriate resistors are supplied with the replacement part. 
Replacement Bulkheads for the 346C have the recommended bias level written on the part. The appropriate resistors 
are enclosed in a small envelope. The resistors' value and part number are written on the envelope. The N4002A 
bulkheads are not be supplied with an envelope and resistor. However, the value of the current is marked on the part. 
00346-60155 Replacement Noise Cartridges are used in both models. These parts will be labeled with a tracking 
number. The appropriate resistors will be enclosed in an envelope which is marked with the tracking number of the 
cartridge, resistor value, part number and recommended bias current level. Also, the cartridges are shipped with 
Installation Note 00346-90024, Attenuator Replacement, in case attenuator tuning is necessary to bring the unit to 
within specification.
For the N4002A model, the bias is set electronically by using field calibration software to calibrate the Noise Source 
and re-burn the EEPROM. The bias value of current supplied with the Rep

二手回收Agilent 346C也销售Agilent 346C