I have a new Summit that came with the newest High Output 2.4 Link radio. I also purchased two additional 5-channel receivers.
My radio worked fine in the Summit. I added a new Rx to my E-Maxx, and bound the Rx to the Tx. It worked fine, and binding takes a split second.
But there is a problem. When I wanted to use my Sunnit, the Tx and Rx were no longer bound to each other. I had to remove the Rx cover (this had me baffled for a while trying to re-bind using only the EVX on/off button!) and get the radio to re-bind on the Summit. Again it took a split second and I was able to drive my Summit. I later went back to my E-Maxx and guess what. Yup, no longer bound to the Tx. So I did the binding routine on the E-Maxx and drove it. Later I tried the Summit and it was no longer bound to the Tx.
It is my understanding from Traxxas marketing that the 2.4G Link Tx can bind to 20 Rx's and recognize each one simply by turning on the model.
What am I doing wrong, that I cannot even get my Tx to recognize two Rx's?