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FIELD TEST DEVICE - LoRaWAN Europe - Guide utilisateur / User guide version V2.0.0
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3.6. PER (Packet Error Rate) screen
This menu can be accessed by briefly pressing on pushbutton 2 after the GPS menu. It allows you to evaluate the quality of the radio connection
between the device and the network.
The screen will display:
• The number of frames sent (UL COUNT), including repetitions
• The number of frames received (DL COUNT)
• The Packet Error Rate (PER) as a percentage
The PER measurement is calculated by comparing the number of frames transmitted to the number of frames received:
• PER (%) = 100 - (( DL_COUNT / UL_COUNT) * 100)
3.7. CONFIGURATION screen
This screen is reachable by pressing the pushbutton 2 (screen button) during 2 seconds. It allows to show the current configuration of the Field Test
Device regarding the following parameters: ADR, SF, Power and Duty Cycle. If ADR is deactivated, the product will show the current configuration
of the SF and TX power instead of AUTO.
Frame counters
Status bar
PER screen
Current
configuration
Status bar
Configuration screen
To exit this screen press again on the pushbutton.
4. “INTEGRATED ANTENNA” MODE
When activated by the user, the FTD switch to a mode called «integrated antenna».
In this mode, the Field Test Device emulates the operation and the performances of a device with a
PCB antenna and having the ADR ON.
This mode enables the user to be aware of the behavior of an integrated product on the field.
NOTE : when this mode is activated, the information related to downlink is not provided because
considered as non relevant (on screen and even in the logs, except SF and power transmission).