快速校准验证s11在+/-0.7 dB范围内可以接受？

> {quote：title = umerfarooque001写道：} {quote}>参考快速校准验证... >>我使用TOM（Thuro-Open-Matched）校准...然后使用短标准验证校准
来自相同的校准套件......＆amp;
它显示s11测量范围+/- 0.8 / 0.9 dB ...这个值是可以接受的吗？
>>当要验证校准质量时，典型的可接受范围是多少？
>>谢谢> Umer Farooque谁制作了你的分析仪？
它是什么型号的？
什么固件版本？
它有什么选择？
我问，因为TOM校准似乎是Rohde＆amp; Sons使用的首字母缩略词。
Schwarz，但我从不知道HP / Agilent / Keysight。
我不敢说，似乎没有太多支持Rohde＆amp;
施瓦茨设备。
是的，他们产生了一些高端的VNA，但是当我试图获得支持时，我从来没有多少运气。
销售和技术支持询问者都没有得到答复。
Rohde＆amp;
Schwarz Yahoo group https://groups.yahoo.com/neo/groups/[hp_agilent_equipment]/info与576名成员，但与HP / Agilent Yahoo组进行比较https://groups.yahoo.com/neo/groups/hp_agilent_equipment
/信息与其3840成员，Rohde＆amp;
Schwarz团队相当不错。
本月到目前为止，罗德与罗德有4个主题。
施瓦茨雅虎集团相比惠普/安捷伦的93家。
据我所知，Rohde＆amp; amp;
施瓦茨。
无论如何，+ / - 0.8 dB是不可接受的，如果您只是重新测量校准标准，那就表明了测量的可重复性。
但也许你不这样做。
它确实取决于VNA和校准套件，但我预计会有几百dB。
不是十分之一分贝。
至少低于20 GHz。
我不知道你是在100's GHz或THz频率工作，那么也许它会变得更糟 - 我不知道。
戴夫。



     以下为原文

  > {quote:title=umerfarooque001 wrote:}{quote}
> with reference to quick calibration verification...
> 
> i have used TOM (Thuro-Open-Matched) to calibrate...then used the short standard to verify the calibration from the same calibration kit... & it shows s11 measurement within range +/- 0.8/0.9 dB...is this value is acceptable??
> 
> what is the typical acceptable range when one is going to verify the quality of calibration??
> 
> thanks
> Umer Farooque

Who made your analyzer? What model is it? What firmware version? What options does it have? I ask that since TOM calibration appears to be an acronym used by Rohde & Schwarz, but never to my knowledge HP/Agilent/Keysight. 

I'm afraid to say, there does not appear to be much support for Rohde & Schwarz equipment. Yes they produce some high end VNAs, but when I have tried to obtain support, I've never had much luck. Both sales and tech support enquirers have not been answered. 

There is a Rohde & Schwarz Yahoo group

https://groups.yahoo.com/neo/groups/[hp_agilent_equipment]/info

with 576 members, but compared to the HP/Agilent Yahoo group

https://groups.yahoo.com/neo/groups/hp_agilent_equipment/info

with its 3840 members, the Rohde & Schwarz groups is pretty quite. There have been 4 threads so far this month to the Rohde & Schwarz Yahoo group, compared to 93 on the HP/Agilent one. 

There are to my knowledge no forums for Rohde & Schwarz. 

Anyway,  +/- 0.8 dB is not acceptable, and if you are just remeasuring the calibration standard, that is an indication of the repeatability of the measurement. But maybe you are not doing that. 

It does depend on the VNA and cal kit, but I would expect a few hundred of a dB,. not tenths of a dB. At least below 20 GHz. I don't know about if you were working at 100's of GHz or THz frequencies, then perhaps it gets a lot worst - I have no idea. 

Dave.