I have done a little more investigation on the DX7 radio. This radio will store up to 20 aircraft in its’ memory. In order to take full advantage of this capability, one would need to invest in 20 AR7000 receivers at a cost of approximately $2,000.00. Few of us might
take advantage of this 20 plane capacity. Personally, I feel keeping ahead of the maintenance on 5-6 planes to be adequate work. The AR7000 receiver’s price is comparable with 7-9 channel PCM receivers, so I’m not saying their price is exorbitant, only that there is a little more reality to consider.

Beginners might not consider much beyond that first trainer airplane and getting it up and down in one piece. However, the reality is that most of us whom are fairly deeply involved in the hobby have many airplanes which we fly regularly using a single transmitter. So, understanding a modern a R/C radio’s capabilities is good education for beginners!

One of the best features which has been added to R/C radios in the last 10-15 years is a radio’s capability to store multiple airplanes within it’s memory. I would not consider the purchase of any radio which does not at least have this feature