Graupner New Items 2008

2.4 GHz Graupner IFS system
2.4 GHz Graupner IFS system
Bi-directional, modular radio
control system with intelligent
frequency hopping process
IFS - Intelligent Frequency Select
Here we have a further milestone from
Graupner’s RC development department.
Just replace the RF module and
receiver, and your radio control
system immediately switches to the
2.4 GHz band with its inherent security
of transmission. The new Graupner
IFS system is the result of several
years of development work. Intensive
practical testing has proceeded in
parallel with the development phase,
and this has confirmed the basic
design concepts. The advantages
speak for themselves:
● In a matter of seconds you transform
your previous 35 MHz or
40 MHz system into a Graupner IFS
system, working in the 2.4 GHz
band. None of your transmitter
settings are lost!
● Bi-directional communication between
transmitter module and the
connected receiver. The data is
transmitted and confirmed in fractions
of a milli-second – in both
directions!
● Short, sharp pulsed signals effectively
suppress possible interference
signals.
● The modular nature and backwards
compatibility of the system make it
possible to install the modules even
in older systems - right back to the
Graupner FM-6014 transmitter!
● 120 models can be operated
simultaneously.
● If interference occurs, an intelligent
frequency hopping process
(registered patent) initiates a
channel switch-over procedure.
The transmitter and receiver
modules switch over simultaneously
– while the model is operating
– and the user notices absolutely
nothing.
134 New Items ’08
● After the binding process the receiver
does not respond to any
other transmitter signal, i.e.
“channel clashes” – two transmitters
on the same frequency –
are eliminated at the system level.
● Fail-safe functions can be programmed
individually for each servo
channel at the receiver: hold last
position / run to individually programmed
position. Fail-safe times
can also be set to cope with catastrophic
failure, e.g. transmitter
battery collapse.
● Individual servo channel assignments
are possible at the receiver.
● The transmitter output power is
variable over several increments
from 10 mW (approved all over the
world) to 100 mW. Please check
your national regulations before
using the system!
● The current drain is extremely low;
even when set to maximum transmitter
power the RF module draws
less than 90 mA, which means that
you can obtain much longer operating
times whilst retaining your
existing transmitter battery.
● Data encoding and 64-bit error
detection make it virtually impossible
to send incorrect or invalid
data to the servo outputs.
● The 16-bit system provides a resolution
of 65,536 steps, and this is
available at the servo channels. The
result is that your model responds
more directly and with finer control
to transmitter commands.
● Special aerial technology eliminates
the need for different aerials which
respond to phase shifts or reflections.
● Frequency conflicts and waiting for
the frequency peg are now a thing
of the past.
● The system eliminates the need to
set channels using the Synthesizer
system, or physically to change
plug-in crystals.
● You have complete control over the
model for as long as you can see it.
● Real-time telemetry transmission
from model aircraft, helicopter, car
and boat: in preparation.
Specification
Range (six-channel receiver)
– Up to 150 m on the ground *)
with visual connection
– Up to 500 m in the air with visual
connection
Range (six / ten / twelve-channel
receivers)
– Up to 800 m on the ground *) with
visual connection
– Up to 2000 m in the air with visual
connection
*) Ground range = »model standing in grass«
Frequency
– 2.4 GHz ISM band, intelligent
frequency hopping process.
– Approximately spherical Radio
Frequency radiation characteristic,
eliminating the need for multiple
aerials.
Resolution
– 16 bits per channel (65,536 steps).
– +/-10 ns servo signal accuracy.
Susceptibility to interference
– Chance of being on the same
frequency as another module:
1 in 18,446,744,073,709,552,000.
– Up to 120 models can be operated
simultaneously.
Aerial length
– Six-channel receiver: integral aerial.
– 3 cm receiver aerial, completely
enclosed in the case.
– Transmitter: external aerial, approx.
12 cm long.
Additional features
– Individually programmable
Fail-Safe function for each channel.
– Programmable servo channel
assignment.
– Bi-directional telemetry data
interface.
(exception: six-channel receiver).
For further information on the
„Connection of the Future“
please have a look at
www.graupner-ifs-system.de