What range can I achieve with this part?

The range that can be achieved will depend on the below variables:

1. Carrier Frequency: The lower the frequency, the further the signal will travel in free space according to the below Free Space Path Loss equation where f is in MHz and d is in meters. This equation describes the reduction in effective power of an RF signal as it travels through free space.


FSPL=20 log⁡(d)+20 log⁡(f)-27.55


2. Data Rate: With lower data rates, receiver sensitivity is improved. Therefore as the data rate is lowered, the range will increase. Variations in data rates can have a significant effect on sensitivity. On the ADF7030-1, a signal at 100bps can be received at -134dBm. Compare this with a signal at 100kbps where the signal must be at -107dBm to be received.


3. Antenna: The antenna design affects both sides of the link budget – both on the transmit power and receive sensitivity. Higher gain antennas will enable greater range. Antenna designs will vary depending on the application form factor and environment. Antenna sizes vary with the carrier frequency. As frequency is increased, similar antenna gain performance can be achieved with a physically smaller antenna. Users are recommended consult antenna design specialists to optimize the antenna for their product.


4. Building type: For wireless systems deployed within buildings, the achievable range will vary depending on wall thickness, materials used and other structural factors. In general, lower frequencies will have greater penetration through structures compared to higher frequencies.