Radio binding

Redcat Racing Ascent-18 APEX, RER42219; original equipment covered by the cited edition.

Start with the correct reference

Open the cited manufacturer reference for the assembly, sequence and checks. Replacement needs depend on inspection and the fitted components.

Radio binding, PDF p. 7 (opens in a new tab)
Manufacturer procedure · 1-RER42219_Ascent-18_Apex_4WD_RTR_Brushless_Rock_Crawler_Manual.pdf

Service guides

Choose the operation for the assembly being serviced. Each step links to its manufacturer reference.

Bind the Apex RTX-4C radio

Original RTX-4C/R4C radio system covered by the Ascent-18 Apex exact-model manual.

Before starting

Fit four new AA transmitter batteries with the correct polarity and use a fully charged vehicle battery.Source, PDF p. 7 (opens in a new tab)

Steps

Hold the transmitter BIND button while switching the transmitter on.Source, PDF p. 7 (opens in a new tab)
Wait for the green status LED to flash quickly, then release BIND.Source, PDF p. 7 (opens in a new tab)
Switch on the ESC to power the receiver. The receiver enters bind mode automatically.Source, PDF p. 7 (opens in a new tab)
Switch off the receiver/ESC.Source, PDF p. 7 (opens in a new tab)
Switch off the transmitter.Source, PDF p. 7 (opens in a new tab)
Switch the transmitter back on.Source, PDF p. 7 (opens in a new tab)
Switch the receiver/ESC back on. After this power cycle the transmitter binds to the receiver.Source, PDF p. 7 (opens in a new tab)

Final checks

Successful binding is indicated by a slowly flashing receiver LED and a transmitter LED that remains solid.Source, PDF p. 7 (opens in a new tab)
For normal use, turn the transmitter on before the vehicle. When finishing, turn the vehicle off and unplug its battery before switching the transmitter off.Source, PDF p. 7 (opens in a new tab)

Parts, tools and consumables

No separate parts or tools are listed here. Check the cited instructions for consumables, tools and replacement decisions.

Part links open an exact-model OEM listing. Quantities, reused hardware and condition-dependent replacements may need checking in the manual. A listed part is not an instruction to replace it.