User manual
Vectron
© Höft & Wessel AG
page 5/70
Lin
02.02.2001
1.00
HW90195UserMan.doc
Subject to amendment, errors excepted
9.
Connection of the HW 90196 and HW 90195 via radio transmission........................... 54
9.1 General.......................................................................................................................... 54
9.2 Technical architecture.................................................................................................... 55
9.3 Function diagram ........................................................................................................... 56
9.3.1
Initial logon of MDE ............................................................................................... 56
9.3.2
Repeated logon of MDE ........................................................................................ 56
10. Radio frequency transmission system according to FCC part 15 ............................... 57
10.1
Purpose of the chapter............................................................................................... 57
10.2
Abbreviations ............................................................................................................. 57
10.3
Overview .................................................................................................................... 57
10.3.1 Product HW 90196/US .......................................................................................... 57
10.3.2 Product HW 90195/US .......................................................................................... 57
10.3.3 Product HW 8660/US ............................................................................................ 58
10.4
Radio frequency transmission .................................................................................... 58
10.4.1 Frequency channels .............................................................................................. 58
10.4.2 Carrier modulation................................................................................................. 59
10.5
Multiplexing ................................................................................................................ 59
10.5.1 Multiplexing in the Time Domain............................................................................ 59
10.5.2 Multiplexing in the Frequency Domain ................................................................... 59
10.5.3 Generic frequency hopping patterns...................................................................... 60
10.5.4 Hopping channels.................................................................................................. 62
10.5.5 Bearer position ...................................................................................................... 62
10.6
Medium Access Procedures....................................................................................... 62
10.6.1 Synchronization..................................................................................................... 62
10.6.2 Monitoring of the environment ............................................................................... 63
10.6.3 Setting up a connection ......................................................................................... 63
10.6.4 Connection maintenance....................................................................................... 63
10.7
Interference avoidance strategies .............................................................................. 64
10.7.1 Interference within the system ............................................................................... 64
10.7.2 Interference between two systems of the same type ............................................. 64
10.7.3 Interference from other sources............................................................................. 65
10.7.4 Interference to other systems ................................................................................ 65
10.8
Specific requirements from FCC chapter 15............................................................... 66
10.8.1 15.203 Antenna requirement ................................................................................. 66
10.8.2 15.204 External radio frequency power amplifiers and antenna modifications ....... 66
10.8.3 15.205 Restricted bands of operation .................................................................... 66
10.8.4 15.207 Conducted limit.......................................................................................... 66
