Why test the signal before you hand over
A tracker can power up, show a green light and still report badly. The antenna may see too little sky, or the SIM may sit in a weak cell. The problem then shows up as a jumpy track, a late alert or a distance that does not match the odometer, weeks after the installer has left.
One record of what you measured, in the same order on every vehicle, turns that argument into a comparison.
The static test
Park outdoors with a clear sky, away from tall buildings and covered parking. Power the device up and write the time until the first fix, the satellites used and the HDOP. HDOP is the horizontal dilution of precision: a lower number means a better satellite geometry. Then read the network: RSRP, RSRQ, SINR and RSSI for LTE, or CSQ for 2G and 3G.
Choosing the mounting position
Test more than one position on the same vehicle: the top of the dashboard, behind the mirror, and the roof if the device allows it. Compare clear glass with metal-coated or heated glass, because some receivers lose satellites behind them. Take a photo of each position and write the file name, so the next person sees what you tested.
The drive test
Drive a route you know. Take the reference speed from a calibrated source, not the dashboard, which often reads high. Heading is only compared above a minimum speed, because it is not stable at a standstill. For distance, read the trip meter or a mapped route at the start and end of each leg and enter your error limit.
Event tests
The event sheet lists 13 tests, from ignition on and off to a network gap. Do each one safely: a private area for overspeed and harsh events, a stationary vehicle for panic and power disconnect. Mark Applies as No for a function that is not fitted. A blank row counts as open, so nothing is skipped by accident.
Limits of this record
It records one test on one vehicle on one day and suggests a decision. It is not a certificate, a standard or an approval, and it does not replace your device installation instructions. Where a client or regulator sets a limit, check it against the current official text.