RF600 system planning
4.5 Regulations applicable to frequency bands
RF600
4-18
System Manual, 09/2005 Edition, J31069 D0171-U001-A0-7618,
4.5.2
Regulations for UHF frequency bands in the USA
USA
FCC (Federal Communications Commission)
•
UHF band: 902 to 928 MHz
•
Radiant power: max. 4 W (EIRP)
•
Number of channels: 50
•
Frequency hopping
b
N+]
0+]
0+]
FKDQQHOV
WR:(53
PD[:ZLWKG%DQWHQQD
Frequency hopping
This technique should prevent mutual interference between readers. The reader changes its
transmission channel in a random or programmed sequence (FHSS - Frequency Hopping
Spread Spectrum). The 50 available channels mean that the probability is low that two
readers will be operating on the same frequency
Содержание SIMATIC RF660
Страница 5: ...Table of contents RF600 System Manual 09 2005 Edition J31069 D0171 U001 A0 7618 v ...
Страница 6: ......
Страница 16: ...System overview 3 1 RF System SIMATIC RF600 RF600 3 4 System Manual 09 2005 Edition J31069 D0171 U001 A0 7618 ...
Страница 66: ......
Страница 96: ...Appendix A 4 Training RF600 A 6 System Manual 09 2005 Edition J31069 D0171 U001 A0 7618 ...