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9150-0125-01 R-4
5.6
SINGLE MODULAR APPROVAL REQUIREMENTS
The ST150M module provides surface mount pads for the RF output and BLE antenna which must be internally
attached passively via the PCB to the approved antennas (referenced above). No antenna connector or any other
antenna may be used. In order for any device to obtain certification from Globalstar for use under this modular
approval, this condition must be met.
These requirements are enforced as part of the Globalstar Certification process whereby any device utilizing the
ST150M module must be submitted to Globalstar for approval prior to being approved for provisioning for
operation on Globalstar's network. Adherence to these requirements is an integral part of the Globalstar
Certification process.
Since the intent of Globalstar Certification is to ensure that only Globalstar approved antennas are used, the
Globalstar certification and provisioning process constitutes a more stringent enforcement of sections 15.203,
15.204(b), 15.204(c), 15.212(a), and 2.929(b) than merely requiring a "unique connector".
In summary, Globalstar will not certify ANY device using the ST150M module UNLESS the approved layout and
antennas for satellite and BLE transmission are passively connected to the ST150M on a single circuit board.
This meets the requirements of the aforementioned part 15 clauses.
5.7
TRACE AND CABLE LOSSES
The Antenna port (Pin 32) is designed to interface to a 50 Ohm antenna. This connection should feed to the
antenna by means of a 50 Ohm impedance trace on the circuit board. The following example impedance
calculation is for a co-planar waveguide trace on the top layer of a standard 0.063" FR-4 2-layer board material
(60-mil core material) with a dielectric εr ≈ 4.6 and 1/2 oz. Copper.
ST150M User Manual
FIGURE 12 - COPLANAR WAVEGUIDE
Confidential & Proprietary Information
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