User's Manual

BTLC1000-MR110CA [DATA SHEET]
Atmel-42376B-BTLC1000 Hardware Design Guide_02102015
5
4 FCC Information
Each module has a label with an FCC ID, however the product User Manual must contain the following state-
ment: “This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation”.
The module must be installed into the end product to provide a separation distance of at least 5 mm from all
persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
If the module’s label is not visible when installed, then an additional permanent label referring to the enclosed
module: “Contains Transmitter Module FCC ID: 2ADHKBTLC1000” must be installed on the product in a visible
location.
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the module/product.
- Increase the separation between the equipment and module/product.
- Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications made to the equipment without the approval of manufacturer could void the user's
authority to operate this equipment.
5 Interferers
One of the biggest problems with RF receivers is poor performance due to interferers on the board radiating
noise into the antenna or coupling into the RF traces going to input LNA. Care must be taken to make sure that
there is no noisy circuitry placed anywhere near the antenna or the RF traces. All noise generating circuits should
also be shielded so they do not radiate noise that is picked up by the antenna. Also, make sure that no traces
route underneath the RF portion of the BTLC1000. Also, make sure that no traces route underneath any of the
RF traces from the antenna to the BTLC1000 input. This applies to all layers. Even if there is a ground plane on
a layer between the RF route and another signal, the ground return current will flow on the ground plane and
Revision History
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