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30 ADAM-4550 User's Manual
checksum error and 9 good
packets. There are 26 packets
that were transmitted from this
module that received acknowl-
edgment. There are 5 retrans-
mitted packets due since no ac-
knowledgment was received.
Appendix A: External Antenna Options
8 dBi Omni-Directional Antenna
Electrical Specifications:
Frequency: 2.4 to 2.483 GHz
Gain: 8 dBi
3 dB beamwidth: 15° in elevation plane, uni-
form in azimuth plane.
VSWR: 1.5:1 max @ 50 ohm
Polarization: Vertical
Mechanical Specifications:
Antenna Type: Colinear
Size: 750 mm
Weight: 1.5 kg
Connector: Type N Female
Environmental Specifications:
Windload: 240 km/hr.
Humidity: 100%