I believe the Sig Kadet Senior is a 3 channel plane, not the best way to start in my opinion. But....

Each of us has an opinion on how you should start, and what you should buy. It's usually based on our own, or an associates experiences, or based on the information we've read here.

While I think a simple 6 channel computer radio is the better first choice, Minnflyer is absolutely right concerning cost. All anyone needs to start is a 4 channel radio. Many of us are 'slaves' to brand names, but Tower (for instance) sells their own brand, a perfectly good 4 channel set-up at a very reasonable price.

Crashem also made a great point. All our well intentioned suggestions don't matter nearly as much as the instructor. The vast majority of trainers and radio gear (and most engines) operate well enough for you to learn how to fly.

So find that instructor, buy SOME kind of trainer, and go fly!
Dennis-