ThingMagic Micro Hardware - Manual (Page 33)

Authorized Antennas
A D I V I S I O N O F T R I M B L E
Hardware Overview 33
Authorized Antennas
This device has been designed to operate with the antennas listed below, and having a maxi-
mum gain of 6 dBiL. Antennas not included in this list or having a gain greater than 6 dBiL are
strictly prohibited for use with this device without regulatory approval. The required antenna
impedance is 50 ohms.
Micro Authorized Antennas
FCC Modular Certification Considerations
Trimble has obtained FCC modular certification for the Micro module. This means that the
module can be installed in different end-use products by another equipment manufacturer
with limited or no additional testing or equipment authorization for the transmitter function
provided by that specific module. Specifically:
No additional transmitter-compliance testing is required if the module is operated with
one of the antennas listed in the FCC filing
No additional transmitter-compliance testing is required if the module is operated with
the same type of antenna as listed in the FCC filing as long as it has equal or lower
gain than the antenna listed. Equivalent antennas must be of the same general type
(e.g. dipole, circularly polarized patch, etc.), must be of equal or less gain than an
antenna previously authorized under the same FCC ID, and must have similar in
band and out of band characteristics (consult specification sheet for cutoff
frequencies).
If the antenna is of a different type or higher gain than those listed in the module’s FCC
filing, see
Micro Authorized Antennas , a class II permissive change must be requested
Vendor Model Type Polarization
Linear Gain
1
(dBi)
Laird S9025P Patch Circular 4.3
Laird S8658WPL Patch Circular 6.0
MTI Wireless MTI-262013 Patch Circular 6.0
MTI Wireless MTI-242043 Patch Circular 6.0
MTI Wireless MT-242025 Patch Circular 5.1
Laird FG9026 Dipole Linear 6.0
Note:
1 - These are circularly polarized antennas, but since most tag antennas are linearly
polarized, the equivalent linear gain, as provided, of the antenna should be used for all
calculations.