User Manual

Table Of Contents

Model SM240 Data Sheet · Document Number 430154-01A · Page 10 of 12

WARNING: 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 interferences,

and (2) this device must accept any interference received, including interference that

may cause undesired operation.

NOTICE: OEM’s must certify final end product to comply with unintentional radiators

(FCC Section 15.107 and 15.109) before declaring compliance of their final product to

Part 15 of the FCC Rules.

NOTICE: The SM240 modules have been certified for remote and base radio

applications. If the module will be used for portable applications, the device must

undergo SAR testing.

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 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 SM240 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. The SM240 module has been

designed to operate with the antennas listed below in Table 2.1. The required antenna

impedance is 50 ohms.

Table 2.1. Approved FCC Antennas

Part Number Type Gain Application Min. Separation

N/A Inverted F PCB etch 0.0 dBi Fixed/Mobile 20 cm.