Siemens SIMATIC RF300 System Manual page 26

RF300 system planning
4.1 Fundamentals of application planning
Table 4- 1 RF310R reader and ANT 1 (RF350R) transmission window and read/write distance
S : Operating distance between transponder and reader
a
S Limit distance (maximum clear distance between upper surface of the reader and the transponder, at which the
g
transmission can still function under normal conditions)
L Length of a transmission window
The length L
is valid for the calculation. At S
d
SP Intersection of the axes of symmetry of the transponder
28
, the field length increases from L
a,min
System Manual, 11/2009 - Zwischenstand 17.09.2009, A5E01642529-04
to L .
d max
SIMATIC RF300