Is it necessary to field test your wireless link?

Do I need to perform a field test before installing my wireless link?

It is logical that the next step after simulation is to perform tests with a real radio module. You may be concerned about things such as:

1. Other devices using the frequency band such as remote keyfobs.
2. Buildings and foliage that may reflect, block or absorb your signal.
3. Snow or rain in the area that may absorb radio waves.
4. Trying to receive signal indoors through walls.

And other things that cannot be predicted by simulation.

To perform field testing, you need to be aware of things like..

1. The hardware (such as a CPU) for data generation/reception and controlling the radio module.
2. Knowing what measurements to take and how to interpret them.
3. Saving the data and presenting them in a report.
4. Extended measurements that conventional radios cannot perform beyond RSSI output.

Constructing a test rig requires some RF or coding experience.

Packet testing allows you to see the reliability of your communication link.

 

So is it necessary to field test your wireless link?

The answer is yes!

• Simulation alone won't give a definitive answer.
• What you need is to account for communication inconsistency due to unfavourable or unforeseen conditions.
• Therefore judging the correct reception margin is necessary to create a reliable communication link.

Simulation will provide some insight about the feasibility, but decision must be made based on field test results.

To discover more, click on our article for more information.

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