User's Manual

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(2) The "Set Region" button sets the operating frequency range of the reader module.
(3) The “Set RFCH” button sets the operating frequency channel (frequency point) of the reader
module.
(4) "Get RFCH" button, read the working frequency channel of the current reader module.
(5) "FHSS OFF" and "FHSS ON", FHSS(Frequency-Hopping Spread Spectrum) is a kind of
frequency hopping spread spectrum communication technology, which is an anti-interference
technology. Its principle is to use the spread spectrum principle. Frequency hopping is used to achieve
the purpose of "avoiding" interference.
When reading the tag, the reader module performs frequency hopping to transmit a radio frequency
signal according to a pseudo random code in the spread spectrum technology to communicate with the
tag within a certain time interval. When the module is powered on, the default is frequency hopping. If
the "FHSS OFF" button is clicked when the fixed frequency operation is required, the reader module
is in fixed frequency operation; otherwise, click "FHSS ON", and the reader module returns to the
frequency hopping state.
3.4.2.2 RF Power Setting
It is used to set the RF transmit power of the module. The setting is irrelevant to the transmit
power of the connected antenna. Under most circumstances, this setting is used during testing.
Shown as Picture21, Click “Set PA Power” and select the desired value, the range of the value is
0dBm to 30dBm. Click” Get PA Power” to show the set value, Click”CW ON” set the module to
transmitcontinuous carrier RF signal which doesn’t have modulation command, this function is used
during testing.
Picture 21
3.4.2.3 Antenna Setting
Set the relevant parameters of the module for calling the antenna ports.