Under constructionWe are still building the catalogue. Prices are not being tracked yet, and many sections are still being written — what is here is real, there is just not much of it.

Section 29 · Gadgets

Drones & RC

The essentials

Checked against Radio-controlled model.

Vehicle Types

ground, boat, plane, helicopter, submarine, or railway locomotive

WWII Usage

Luftwaffe controllable winged bombs for targeting ships

Early Control Methods

fuses, clockwork mechanisms, tethers, round the pole, and u-control

Transistor Advancements

reduced battery requirements and increased reliability since the late 1950s

Proportional Systems

surface movement proportional to stick position on the transmitter

PWM Signaling

standard 920 μs to 2120 μs pulse width, widely used since the early 1970s

PCM Features

bit error checking and fail-safe options with increased lag

2.4 GHz Benefits

3–5 cm antennas, lower power usage, and no crystal selection required

Line of Sight

required for 2.4 GHz systems due to short wavelengths

Superheterodyne Circuits

improved selectivity and stability over Citizen's Band radio bands