RF Link Budget Calculator for Wireless Network Planning
Use this Vizmonet RF Link Budget Calculator to estimate signal strength, optimize wireless network design, and plan reliable outdoor RF links.
What is an RF Link Budget?
An RF link budget is the calculation used to determine whether a wireless communication link will perform reliably over a given distance.
- How far a wireless signal can travel
- Whether the received signal is strong enough
- How environmental factors affect performance
This is essential in designing outdoor wireless links, industrial networks, surveillance systems, and IoT connectivity solutions.
RF Link Budget Formula
Received Power (dBm) = Transmit Power + Antenna Gain (TX) + Antenna Gain (RX) − Path Loss − System Losses
Where:
- Transmit Power: Output power
- Antenna Gain: Signal boost
- Path Loss: Signal loss over distance
- System Losses: Cable + interference
How to Use This RF Link Planner
1. Set Coordinates
Enter TX and RX locations
2. Select Product
Choose from wireless modules
3. Enter Parameters
- Frequency (MHz)
- Bandwidth (MHz)
- Antenna Gain (dBi)
- Antenna Height (m)
- Fade Margin (dB)
- Cable Loss (dB)
4. Calculate Link
Click to evaluate performance
RF Link Budget Example
- Transmit Power: 20 dBm
- Antenna Gain: 15 dBi
- Distance: 5 km
- Path Loss: 120 dB
If signal is weak:
- Increase antenna gain
- Reduce distance
- Improve line of sight