I am trying to understand this particular concept and wondering if anyone can shed some more light if possible. What I am ultimately looking for are BER measurements that I plan to take where I can state that the values collected are within a certain statistical confidence level?
The article below (link provided) provides some explanation on BER and how to use an equation to determine the number of bits required to be transmitted in order to tie the BER measurement to a confidence level.
1) Why do we have to first run into an error before we can determine the number of bits required to be tested tied to a certain confidence level?
2) Why do they have to reduce the signal to noise ratio in order to reduce the amount of bits required which translates to less amount of time required to conduct a test?
I am interested in measuring a system that has no more than 9600 bps such as a P25 system. A lot of the articles I have found are focused more on the 10^9 bps and so on.
http://www.lightwaveonline.com/arti...ing-those-ber-testing-mysteries-53908512.html
The article below (link provided) provides some explanation on BER and how to use an equation to determine the number of bits required to be transmitted in order to tie the BER measurement to a confidence level.
1) Why do we have to first run into an error before we can determine the number of bits required to be tested tied to a certain confidence level?
2) Why do they have to reduce the signal to noise ratio in order to reduce the amount of bits required which translates to less amount of time required to conduct a test?
I am interested in measuring a system that has no more than 9600 bps such as a P25 system. A lot of the articles I have found are focused more on the 10^9 bps and so on.
http://www.lightwaveonline.com/arti...ing-those-ber-testing-mysteries-53908512.html