User's Manual

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© Höft & Wessel AG
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Lin 02.02.2001 1.00 HW8660UserMan.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