Differences

This shows you the differences between two versions of the page.

--- faq:freedom-from-feedback [2015/04/21 16:25] – [Freedom from Feedback] hess
+++ faq:freedom-from-feedback [2015/10/14 11:06] (current) – [GSM-R] fachet
@@ Line 1: / Line 1: @@
 ====== Freedom from Feedback ======
-As a theoretical rule of thumb, a good decoupling requires a distance of 5 to 10 λ.(([λ] Lambda = Wave length))\\
+As a theoretical rule of thumb, a good decoupling requires a distance of 5 to 10 λ.(([λ] Lambda = Wave length = v/f with v∼3×10<sup>8</sup> m/s.))\\
 However, in practive often a distance of 3 λ is sufficient. \\
-\\
-<html>
-&lambda; = v/f with v∼3×10<sup>8</sup> m/s.
-</html>
 At 2.1 GHz (e.g. UMTS) the formula returns 300'000'000/2'100'000'000 = 300/2100 = 0.14m.
@@ Line 15: / Line 11: @@
 For GSM-R Deutsche Bahn requires a decoupling of up to -60 dBm. According to a simulation of one of our antenna supplier a distance of 350 cm is sufficant to fulfill this requirements
-Source: {{:faq:entkopplung_gsm-r_-_v02.pdf|}}
+Source: {{{{:faq:simulation_report_decoupling_gsm-r_v06.pdf|}}
+Quelle: {{:faq:simulation_report_entkopplung_gsm-r_v06.pdf|}}