User Manual

Model SM200 Data Sheet · Document Number 430145-01B · Page 17 of 21
©2012 Synapse Wireless, Inc. · 500 Discovery Drive, Huntsville, AL 35806 · 256-852-7888 · synapse-wireless.com
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
2.1.3 FCC Approved Antennas
The SM200 modules are FCC-approved for fixed base station and mobile applications.
The FCC requirement for mobile applications states that the antenna must be mounted
at least 20 cm (8 in) from nearby persons.
Notice: To reduce potential radio interference to other users, the antenna type and its
gain should be chosen so that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that permitted for successful communication. This module has been
designed to operate with the antennas listed in Table 2.1.3. The required antenna
impedance is 50 ohms.
Table 2.1.3a SM/RF200P81 Approved FCC Antennas
Part Number
Type
Gain
Application
Min. Separation
Murata LDA312G4413H-280 Chip -2.3 dBi Fixed/Mobile 20 cm.
Table 2.1.3b SM/RF200PU1 Approved FCC Antennas
Part Number
Type
Gain
Application
Min. Separation
Pulse W1027 Dipole (quarter-wave
RPSMA)
3.2 dBi Fixed/Mobile 20 cm.