EZRadio-2WayLink-DK

6

Rev. 0.1

2.2.1. Frequency and Frequency Bands

The RFpico board has an on-board antenna and RF matching to provide solutions for supported frequency bands.

A stand-alone antenna can also be used with the SMA connector.

Different RF matchings are required for each frequency band. The range test demo automatically reads frequency

band information out of the on-board EEPROM and selects the appropriate frequency range.

Si4x55 devices support the following three frequency bands:

The EZRadio Two Way Link Development Kits are provided for the middle and the high bands; however, the range

test demo supports all the three bands. The demo can be used with low band RFpico boards as well.

The range test demo provides four different selectable frequencies in all the supported bands. Table 2. lists the

available frequencies.

2.2.2. Modulation

User can select from three types of modulation:

2.2.3. Data Rate

The user can select from three different data rates. Table 3 lists the available data rates.

Table 2. Frequency Options for the EZRadio Two-Way Development Kit

Low

Middle

High

289.28 MHz

433.92 MHz

867.84 MHz

289.43 MHz

434.15 MHz

868.30 MHz

305.67 MHz

458.50 MHz

917.00 MHz

316.67 MHz

475.00 MHz

950.00 MHz

Table 3. Available Data Rates

Modulation

GFSK

(both types)

OOK

9.6 kbps

2.4 kbps

38.4 kbps

9.6 kbps

128.0 kbps

20.0 kbps