RF Link Calc
$2.99
2.0for iPhone, iPad and more
Age Rating
RF Link Calc Screenshots
About RF Link Calc
RFLinkCalc is a numerical calculation tool for radio engineers. It models the characteristics of an RF link, including Wireless Internet (WiFi) links. You can compute the maximum distance, required transmitter power level, or gain margin.
You enter in all of the following values (except what you are trying to calculate) and RFLinkCalc does the rest!
Frequency in MHz
Transmitter Power in dBm
Transmitter Antenna Gain in dBi
Transmitter Cable Loss in dB
Distance in miles or kilometers
Receiver Sensitivity in dBm
Receiver Antenna Gain in dBi
Receiver Cable Loss in dB
Gain Margin in dB
The Free Space Loss and Received Signal values are also calculated.
The EIRP/ERP Calculator computes the EIRP (Effective Isotropic Radiated Power) and ERP (Effective Radiated Power) in both watts and dBm from the transmitter power and antenna gain. The field strength in dBuV/m is also computed for distances of 3 and 10 meters.
The Field Strength Calculator converts between the following units:
V/m (volts per meter)
dBuV/m (dB relative to one microvolt per meter)
dBuA/m (dB relative to one microamo per meter)
pT (pico Tesla)
dBpT (dB relative to one pico tesla)
Tesla
Gauss
A/m (amperes per meter)
mW/cm² (milliwatts per square centimeter)
W/m² (watts per square meter)
You enter in all of the following values (except what you are trying to calculate) and RFLinkCalc does the rest!
Frequency in MHz
Transmitter Power in dBm
Transmitter Antenna Gain in dBi
Transmitter Cable Loss in dB
Distance in miles or kilometers
Receiver Sensitivity in dBm
Receiver Antenna Gain in dBi
Receiver Cable Loss in dB
Gain Margin in dB
The Free Space Loss and Received Signal values are also calculated.
The EIRP/ERP Calculator computes the EIRP (Effective Isotropic Radiated Power) and ERP (Effective Radiated Power) in both watts and dBm from the transmitter power and antenna gain. The field strength in dBuV/m is also computed for distances of 3 and 10 meters.
The Field Strength Calculator converts between the following units:
V/m (volts per meter)
dBuV/m (dB relative to one microvolt per meter)
dBuA/m (dB relative to one microamo per meter)
pT (pico Tesla)
dBpT (dB relative to one pico tesla)
Tesla
Gauss
A/m (amperes per meter)
mW/cm² (milliwatts per square centimeter)
W/m² (watts per square meter)
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What's New in the Latest Version 2.0
Last updated on Jun 9, 2022
Old Versions
Bug fixes and performance improvements
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Version History
2.0
Jun 9, 2022
Bug fixes and performance improvements
1.4
May 10, 2017
Updates for iOS 10.3
1.3
Nov 22, 2013
Support for iOS 7
1.2
Mar 19, 2013
Added Field Strength calculations
Added EIRP/ERP calculations
Added EIRP/ERP calculations
1.1
Jan 10, 2013
Added iPad support
Updates for iOS 6 and the iPhone 5
Updates for iOS 6 and the iPhone 5
1.0.0
Jan 23, 2009
RF Link Calc FAQ
Click here to learn how to download RF Link Calc in restricted country or region.
Check the following list to see the minimum requirements of RF Link Calc.
iPhone
Requires iOS 9.0 or later.
iPad
Requires iPadOS 9.0 or later.
iPod touch
Requires iOS 9.0 or later.
RF Link Calc supports English