[Pontiac_40]

Will the old Power Box Champion and Professional models work with the JR 2.4 recievers? If anybody knows the answer or has used it, Please let me know, just did not want to risk the airplane.

Thanks

[terickson]

Welcome. Works fine for me with a JR 921 rx.

[Snapman]

If it has a yellow dot sticker on the underside, it's 2.4 ready.
If not, you should send it in to Modellbau Deutch for an upgrade.
Upgrade was free, only payed shipping costs.

[capflyr]

When I press the test button on my powerbox shouldent the LEDs light up ??