|
Radio
Control Guide
What
are radio controlled models?
Radio controlled models are of two types - those which operate on the ground or
on water, known as "surface" models and those which are airborne. Each
type has it's own frequency band within which to operate. The frequency bands
available for the use of radio controlled models are shown below together with
the maximum effective radiated power output of the transmitter measured in milliwatts.
Frequency
(in MHz) | Use | Effective
Radiated Power | | 26.96
to 27.28 | General | 100
mW | | 40.66
to 41.00 | Surface
only | 100
mW | | 458.5
to 459.5 | General | 100
mW | | 34.945
to 35.305 | Air
only | 100
mW | The
26/27 MHz band is also allocated for Citizens Band radio and low power telemetry
and telecommand devices as well as model control (see "Interference
in the 27 MHz band"). The use
of the different bands is important. The 40 MHz is solely dedicated to surface
modelling. It consists of 34 channels with a 10 kHz channel spacing, the centre
frequency of the first channel being 40.665 MHz. The 35 MHz is solely dedicated
to aeronautical modelling. It consists of 36 channels with a 10 kHz channel spacing,
the centre frequency of the first channel being 34.950 MHz. Many
toy radio controlled models tend to operate at 49 MHz where a small band exists
for general purpose low power radio devices. What
are the frequencies available for Radio Controlled Cars?
|
40MHz Band Frequencies |
U.K. Channel Number |
European Channel
Number |
|
40.665 |
665 |
50 |
|
40.675 |
675 |
51 |
|
40.685 |
685 |
52 |
|
40.695 |
695 |
53 |
|
40.705 |
705 |
| |
40.715 |
715 |
54 |
|
40.725 |
725 |
55 |
|
40.735 |
735 |
56 |
|
40.745 |
745 |
| |
40.755 |
755 |
| |
40.765 |
765 |
57 |
|
40.775 |
775 |
58 |
|
40.785 |
785 |
59 |
|
40.795 |
795 |
| |
40.805 |
805 |
| |
40.815 |
815 |
81 |
|
40.825 |
825 |
82 |
|
40.835 |
835 |
83 |
|
40.845 |
845 |
| |
40.855 |
855 |
| |
40.865 |
865 |
84 |
|
40.875 |
875 |
85 |
|
40.885 |
885 |
86 |
|
40.895 |
895 |
| |
40.905 |
905 |
| |
40.915 |
915 |
87 |
|
40.925 |
925 |
88 |
|
40.935 |
935 |
89 |
|
40.945 |
945 |
| |
40.955 |
955 |
| |
40.965 |
965 |
| |
40.975 |
975 |
| |
40.985 |
985 |
|
|
40.995 |
995 |
|
|
27MHz Band Frequencies |
Flag
Colour |
|
26.975 |
Black or Grey/Brown |
|
26.995 |
Brown |
|
27.025 |
Brown/Red |
|
27.045 |
Red |
|
27.075 |
Red/Orange |
|
27.095 |
Orange |
|
27.125 |
Orange/Yellow |
|
27.145 |
Yellow |
|
27.175 |
Yellow/Green |
|
27.195 |
Green |
|
27.225 |
Green/Blue |
|
27.245 |
Blue |
Click HERE
to view the most popular frequencies used by Club members. Do
I need a licence to operate model control equipment?
No. Model control equipment was made exempt from the licensing requirements of
the Wireless Telegraphy Act 1949 as from 11 January 1981. Interference
in the 27 MHz band?
The band 26.965 MHz to 27.405 MHz is allocated
for Citizens Band radio. The 27 MHz band is still available for model control
but interference may be suffered from the other users of the band. Within the
model control band there are five 10 kHz wide channels which are used by low power
telemetry and telecommand devices but which are not operational channels for CB.
These have centre frequencies of: 26.995, 27.045, 27.095, 27.145 and 27.195 MHz.
Whilst it is possible that these channels may also suffer from interference they
should provide the best operating frequencies for model control within the new
27 MHz band. It was in view of the problems
associated with the 27 MHz band that the frequency bands were made available at
35 and 40 MHz. Is
35 MHz just for aeronautical modeling?
Yes. The Exemption Regulations make it clear that the channels at 35 MHz are solely
for aeronautical modelling. Surface modellers must not use these channels. Similarly,
aeronautical modellers must not use the allocation at 40 MHz as this is reserved
for surface modelling. | 
