Bluetooth Range Calculations

Our assumptions for the two examples are:

Abbreviation	Description	meters	feet
OL	Overall Length of tow vehicle (bumper to bumper)	6	20
RVL	Overall Length of RV (tongue to bumper)	7	24
T2FS	Tongue to front storage (pass through)	1.5	5
FB2FS	Front Bumper to Front Seat of tow vehicle	2	6
BLE	Operating Range of Bluetooth LE Radio (Class 1.5)	30	100

Attention

To improve the reliability of the connection we take the theoretical range (from the Chart) for a class 1.5 device and divide it by a factor of four. This will effectively take our range from the theoretical maximum of 30 m (100ft) to 7.5m (25ft).

Tow Vehicle

Tow Vehicle - GMC 1500 Pickup Truck

Travel Trailer

Travel Trailer - Lance 1995

Example 1 - Worst Case - Level Up module at Rear of RV

In this example we will mount the Level Up Pro module at the rear of the trailer - absolute worst case

\[≥ 0 = (BLE /Margin) - ((OL – FB2FS) + (RVL))\]

Metric

-3.5 m = (30 m / 4) - ((6 m - 2 m) + 7 m)

Imperial

-13.0 ft = (100 ft / 4) - ((20 ft - 6 ft) + 24 ft)

Example 2 - Best Case - Level Up module in Front Pass Through

In this example we will mount the Level Up Pro module in the front pass through storage of the RV

\[≥ 0 = (BLE /Margin) - ((OL – FB2FS) + (T2FS))\]

Metric

+2.0 m = (30 m / 4) - ((6 m - 2 m) + 1.5 m)

Imperial

+6.0 ft = (100 ft / 4) - ((20 ft - 6 ft) + 5 ft)

Bottom Line

If the result of the calculation is a negative number, you may experience Bluetooth Low Energy (BLE) connection issues between your mobile device and the Level Up module.