嗨 - 安捷伦支持工程师这样说......注2说ALC设置不能输出功率由ALC设置和衰减器值之间的差值设置。
N5183A ALC范围为-32 dBm至+30 dBm，衰减器值为0 dB至115 dB。
例如，如果您希望输出功率为-80 dBm，则可以将ALC设置为+10 dBm，将衰减器设置为90 dB。
当然，ALC和衰减器的其他组合也可达到-80 dBm。
要设置衰减器，您需要使用衰减器保持功能。
使用衰减器更改功率电平时，会增加切换时间，典型值2 ms不适用。
注3适用于没有衰减器的仪器。
对于客户的应用，如果他们希望输出功率为-80 dBm，他们需要选择1E1，添加衰减器。
在数据表中有两个绝对等级精度表。
客户将使用绝对水平精度和选项1E1，其规格低至-90 dBm。
问候 - 编辑：tabbott于2013年4月10日上午9:40编辑：tabbott于2013年4月10日上午10:23编辑：tabbott于2013年4月10日上午10:26
以上来自于谷歌翻译
以下为原文
Hi -
An Agilent Support Engineer had this to say...
Note 2 is saying that the ALC setting can’t be < 0 dBm for option 520.
The output power is set by the difference between the ALC setting and the attenuator value. The N5183A ALC range is from -32 dBm to +30 dBm and the attenuator values are from 0 dB to 115 dB. For example, if you wanted the output power to be -80 dBm then you can set the ALC to +10 dBm and the attenuator to 90 dB. Of course, there are other combinations of ALC and attenuator to also achieve -80 dBm. To set the attenuator you would need to use the Attenuator Hold function. When you change the power level with the attenuator, it increases the switching time and the typical value of 2 ms doesn’t apply.
Note 3 applies to instruments without an attenuator. For the customer’s application they would need to have option 1E1, add attenuator, if they want the output power to be -80 dBm. In the data sheet there are two Absolute Level Accuracy tables of specifications. The customer would be using the Absolute Level Accuracy with Option 1E1 which has specifications down to -90 dBm.
Regards –
Edited by: tabbott on Apr 10, 2013 9:40 AM
Edited by: tabbott on Apr 10, 2013 10:23 AM
Edited by: tabbott on Apr 10, 2013 10:26 AM
嗨 - 安捷伦支持工程师这样说......注2说ALC设置不能输出功率由ALC设置和衰减器值之间的差值设置。
N5183A ALC范围为-32 dBm至+30 dBm，衰减器值为0 dB至115 dB。
例如，如果您希望输出功率为-80 dBm，则可以将ALC设置为+10 dBm，将衰减器设置为90 dB。
当然，ALC和衰减器的其他组合也可达到-80 dBm。
要设置衰减器，您需要使用衰减器保持功能。
使用衰减器更改功率电平时，会增加切换时间，典型值2 ms不适用。
注3适用于没有衰减器的仪器。
对于客户的应用，如果他们希望输出功率为-80 dBm，他们需要选择1E1，添加衰减器。
在数据表中有两个绝对等级精度表。
客户将使用绝对水平精度和选项1E1，其规格低至-90 dBm。
问候 - 编辑：tabbott于2013年4月10日上午9:40编辑：tabbott于2013年4月10日上午10:23编辑：tabbott于2013年4月10日上午10:26
以上来自于谷歌翻译
以下为原文
Hi -
An Agilent Support Engineer had this to say...
Note 2 is saying that the ALC setting can’t be < 0 dBm for option 520.
The output power is set by the difference between the ALC setting and the attenuator value. The N5183A ALC range is from -32 dBm to +30 dBm and the attenuator values are from 0 dB to 115 dB. For example, if you wanted the output power to be -80 dBm then you can set the ALC to +10 dBm and the attenuator to 90 dB. Of course, there are other combinations of ALC and attenuator to also achieve -80 dBm. To set the attenuator you would need to use the Attenuator Hold function. When you change the power level with the attenuator, it increases the switching time and the typical value of 2 ms doesn’t apply.
Note 3 applies to instruments without an attenuator. For the customer’s application they would need to have option 1E1, add attenuator, if they want the output power to be -80 dBm. In the data sheet there are two Absolute Level Accuracy tables of specifications. The customer would be using the Absolute Level Accuracy with Option 1E1 which has specifications down to -90 dBm.
Regards –
Edited by: tabbott on Apr 10, 2013 9:40 AM
Edited by: tabbott on Apr 10, 2013 10:23 AM
Edited by: tabbott on Apr 10, 2013 10:26 AM
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