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Thank you for your reply.When measureing the TIS ,The procedure is using BER.But when measuring relative sensitivity on intermediate channels,the procedure is using FER.
In the CTIA_Test plan for Mobile performance,the document need to test the relative sensivity on intermediate channels.
Who know the useful of the test of relative sensitivity on intermediate channels?
What can we get from the test of relative sensitivity on intermediate channels?
The...
In order to know how get the IP3,I find this in ads,but I can't understand the sentence that ：
decl vIM = (vIMx >= 1e-304)*vIMx + (vIMx < 1e-304)*1e-304; //v3rd
What's the meaning of 1e-304?
The whole code isthis：
defun ip3_out(vOut,fundFreq,imFreq,zRef,Mix)
{
decl z0 = if (zRef == NULL)...
When I set the impedance of source or load,if choosing complex impedance and entry 42.5-j*55,the result show in smith chart is 42.5+j55.After choosing the selection of "interpret as input impedance",the result will be 42.5-j*55.
Who can tell me why?
Thanks.
Yang...
My problem is that the mobile phone of our company can't pass the HB3 of DCS.
When we test the HB on the test point of the power PCL0,HB3 is under -40dB，But when we test it in darkroom ，the result is about -30dB.When we change the power to the PCL5，the power is lower ,but the HB3 was also -30dB...
I want to know the detail of vias,not the sample difference.
I tried to simulate the parameters of vias by using Saturn PCB Design,but I can't fill the parameter.
For example ,the bind via on the pcb using the circle of 0.1mm inner and 0.3mm outer from layer1 to layer2 in our company.
And I...
What is the via hole diameter,internal pad diameter?Does the via hole diameter contain the cu of the via?Does the via filled with cu or microvias is filled with cu?
Does the diameter of via is the same between the outer layer and the inner layer?
regard
Yang
I'm not good at English. Maybe my decription is not suitable.
For at one port the voltage is 4.2V, After a wire of 1 inch,how can I calculate value of the voltage.
If the R of wire is 0.4ohm and the current is 1A,the voltage is:4.2-1*0.4=3.8V.
How can I get the 0.4ohm.
Is there any theory and...
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