User's Manual

450-470MHz FSK version Specific Requirements
Document p/n: 9S01-7700-A201, rev.
Cattron-Theimeg Inc. Proprietary and Confidential
3-8
3.3.8. Modulation
The unit shall be capable of the following modulation schemes, adjustable by programming.
• 2GFSK and RC2FSK with and without CAT800 protocol q-sync capability, i.e. able to generate
during transmission after a calibration toggle sequence a short un-modulated center frequency
carrier, before resumption of normal 2GFSK
• Programmable deviation.
NB: The product of Modulating rate and Deviation shall not exceed 8K5 / 2
3.3.9. Keying
The module shall be capable of continuously keying between a transmitting and low power
mode. On Off time will depend on many factors but typically would be a 10% or less duty cycle,
maximum duty cycle at full power must be <=30%, this imposes the requirement for the VCO to
lock in <=5mS. (for CAT800 systems), verified by software prior to PA ON.
3.4. Design Constraints
3.4.1. Standards Compliance
• EN300-220 v2.1.1 or later @10mW, (normal keyed modulation applies)
EN301-489-3 EMC Immunity Short Range Devices
• FCC Part 90 @ 500mW, (normal keyed modulation applies)
• DOD 5.3.5.2 @ 500mW, (normal keyed modulation applies)
• EN61000-6-2:2001 EMC Immunity
• SARS Human body exposure limits.