User Manual

1. “*SET999999LRTE=” is the frame header of the command, each command must be

added.

2. “A” is the selection of module testing mode. 0,1,2,3 can be representing standby mode,

sending mode, receiving mode and multi-carrier communication mode.

3. “B” is the center frequency point for the module in Hz. The frequency range of this part is

904000000Hz to 925000000Hz.

4. “C” is the SF value set for the module(SF: Spread spectrum Factor), which can be set

within the integer value of 5-12.

5. “D” is the transmitting power of the module, the unit is dBm, and the transmitting power

should not exceed 22dBm.

6. “E” is the bandwidth of the module. The command can be entered in 0#, 1#, and 2#,

respectively representing the bandwidth of 125kHz,250kHz, and 500kHz.

Example: *SET999999LRTE=1,904000000,7,20,2# : the module takes 904MHz as the central

frequency point and SF value is 7 to send RF signals with bandwidth of 500kHz and

transmitting power of 20dBm.

Limited modules are built into the host device. The host device requires additional application

procedures (for example: C2PC) certification and re-evaluation of the radiation spurious

emission test to meet FCC compliance

2.10 Additional testing, Part 15 Subpart B disclaimer

The modular transmitter is only FCC authorized for the specific rule parts (FCC Part 15.247)

listed on the grant, and that the host product manufacturer is responsible for compliance to

any other FCC rules that apply to the host not covered by the modular transmitter grant of

certification. The final host product still requires Part 15 Subpart B compliance testing with

the modular transmitter installed when contains digital circuity.

2.9 Information on test modes and additional testing requirements

The module can be tested with a customized bottom plate. It can enter different testing modes

through serial port command configuration. The format of serial port command is as follows:

*SET999999LRTE=A,B,C,D,E

2.8 Label and compliance information

The end product must carry a physical label or shall use e-labeling followed KDB784748D01 and KDB

784748 stating “Contains Transmitter Module FCC ID: 2AXQT-LWM023VB”.