SATELLINE-M3-TR8
SATELLINE-M3-TR9
Integration Guide, Version 1.7
36
11
APPENDIX A
11.1
Sub-band Channel Assignment – SATELLINE-M3-TR8
11.1.1
Sub-band
Each sub-band is defined by a start and stop frequency. Furthermore the maximum allowed power
level and maximum duty cycle is defined separately for each sub-band.
11.1.2
Duty cycle
The purpose of the duty cycle limit is to ensure that no single application can occupy this license-
free band for more than a certain percentage of time. The term duty cycle defines the percentage
of a 1-hour period a single modem is allowed to transmit. The modem limits the duty cycle itself.
11.1.3
Power level
The power level limit is defined separately for each sub-band. The maximum power limit for each
sub-band is pre-programmed into the SATELLINE-M3-TR8. The user can choose from 10, 20, 50,
100, 200 and 500 mW ERP* output power for frequency variant 868…870 MHz and for Indian
frequency variant 865…867 MHz following power levels: 10, 20, 50, 100, 200, 500 and 1000
mW ERP*. No matter what power level the user has chosen the maximum allowed power level of
the chosen sub-band cannot be exceeded.
*ERP = The effective radiated power from the antenna relative to a half-wave dipole in a certain
direction.
11.1.4
Channel assignment
Each sub-band is divided into 25 kHz channels according to a channel assignment scheme
defined by the recommendation CEPT/ERC/REC 70-03.
