There are various methods available for measuring ANT+ signal strength. One common way is using an ANT+ dongle and software on a computer to assess signal strength between two devices - typically displayed either as decibels (dB) or percentage. Popular software options that measure signal strength in this way include TrainerRoad, GoldenCheetah and ANTware II.
An alternative method of measurement would be using a handheld ANT+ signal strength meter, such as those found with Dynastream ANT+ Analyzer or WiMotive's ANT+ Signal Analyzer devices. Such handhelds typically display signal strength either numerically in decibels (dB), or as color-coded bars on a color coded spectrum analysis scale. These tools also serve to visually confirm how strong or weak an ANT+ connection actually is.
As another method to measure ANT+ signal strength, oscilloscope or spectrum analyzer are also effective tools; however, using them requires more complex equipment and expertise than its simpler alternatives.
Regarding measuring signal strength between one device and its proposed installation location of its partner device, one option would be using a handheld signal strength meter and taking readings at different spots; another possibility is using simulation software like SimulANT which models signal strengths at various spots based on distance and interference considerations.
Though signal strength plays an integral part of maintaining reliable connections, other elements like interference from other devices or environmental obstacles like walls can impede signal quality as well.
