Editing Radio-controlled model (section)

== Mass production ==
There are thousands of RC vehicles available. Most are toys suitable for children. What separates toy grade RC from hobby grade RC is the modular characteristic of the standard RC equipment. RC toys generally have simplified circuits, often with the receiver and servos incorporated into one circuit. It's almost impossible to take that particular toy circuit and transplant it into other RCs.

=== Hobby grade RC ===
[[File:RC Race Car SST2000.jpg|thumb|right|300px|The 'Shumacher S.S.T.2000' RC Car. Shown here without the body kit or battery pack installed to allow for a clearer view of a hobby grade car.]]
Hobby grade RC systems have modular designs. Many cars, boats, and aircraft can accept equipment from different manufacturers, so it is possible to take RC equipment from a car and install it into a boat, for example.

However, moving the receiver component between aircraft and surface vehicles is illegal in most countries as radio frequency laws allocate separate [[Band (radio)|bands]] for air and surface models. This is done for safety reasons.

Most manufacturers now offer "frequency modules" (known as crystals) that simply plug into the back of their transmitters, allowing one to change frequencies, and even bands, at will. Some of these modules are capable of "synthesizing" many different channels within their assigned band.

Hobby grade models can be fine tuned, unlike most toy grade models. For example, cars often allow [[Toe (automotive)|toe-in]], [[Camber angle|camber]] and [[caster angle]] adjustments, just like their real-life counterparts. All modern "computer" radios allow each function to be adjusted over several parameters for ease in setup and adjustment of the model. Many of these transmitters are capable of "mixing" several functions at once, which is required for some models.

Many of the most popular hobby grade radios were first developed, and mass-produced in Southern California by Orbit, Bonner, Kraft, Babcock, Deans, Larson, RS, S&O, and Milcott. Later, Japanese companies like Futaba, Sanwa and JR took over the market.