Sierra Wireless MC Series Hardware Integration Manual page 15

Hardware Integration Guide
4. The RF signal must be routed on the application board using tracks with a 50Ω characteristic
impedance. Basically, the characteristic impedance depends on the dielectric, the track width
and the ground plane spacing. In order to respect this constraint, Sierra Wireless
recommends using MicroStrip or StripLine structure and computing the Tracks width with a
simulation tool (like AppCad shown in the figure below and that is available free of charge at
http://www.agilent.com).
If a multi-layered PCB is used, the RF path on the board must not cross any signal (digital,
analog or supply).
5. A label must be affixed to the outside of the end product into which the HL8548 is
incorporated, with a statement similar to the following:
This device contains FCC ID: N7NHL8548
6. A user manual with the end product must clearly indicate the operating requirements and
conditions that must be observed to ensure compliance with current FCC RF exposure
guidelines.
The end product with an embedded HL8548 may also need to pass the FCC Part 15 unintentional
emission testing requirements and be properly authorized per FCC Part 15.
Note: If this accessory board is intended for use in a portable device, you are responsible for separate
approval to satisfy the SAR requirements of FCC Part 2.1093.
4119996 Rev 1.3
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