Installation Notes - Multiplex RX-7 SYNTH IPD Manual De Intrucciones

21. A S S
UTOMATIC HIFT
This function only affects MULTIPLEX RX-SYNTH receivers in the
versions for 72 and 75 MHz!
All MULTIPLEX RX-SYNTH IPD receivers in the 72 and 75 MHz
versions can be operated with positive shift (e.g. MULTIPLEX, JR,
AIRTRONICS) and also with negative shift (e.g. HiTEC, Futaba). In their
default state the receivers are set to positive shift. If you wish to use a
negative shift transmitter, you must re-set the RF channel
This sets the receiver automatically to the appropriate shift.
22. I
NSTALLATION NOTES
Receivers contain components which are sensitive to vibration. You
should therefore pack your receiver loosely in foam or similar mate-
rial to protect it from vibration - especially with internal combustion
motors.
Install the receiver at least 150 mm away from electric motors, petrol
engine ignition systems and other electronic components. The re-
ceiver aerial should not run immediately adjacent to these compo-
nents.
Electric motors must be effectively suppressed (e.g. using our sup-
pressor set, # 8 5020). This does not apply to brushless motors.
If you are using servo extension leads longer than 50 cm you should
use separation filters (e.g. # 8 5035).
Do not alter the length of the aerial.
Route the aerial out of the model and extend it in as straight a line as
possible. Do not leave it coiled up.
In large-scale models we recommend the use of a whip aerial. Avoid
fitting connectors in the receiver aerial wire if possible. If unavoid-
able, we recommend our aerial connector system: # 8 5233 (plug),
# 8 5234 (socket).
Do not deploy the receiver aerial parallel to servo leads, high-current
cables or electrically conductive components (e.g. pushrods).
Do not deploy the aerial inside or over model components which are
skinned or reinforced with conductive materials (e.g. carbon fibre,
metallic paints etc.), as they have a shielding effect.
Keep to our recommended arrangement of installed components
(sketches A - C).
23. C R
ARRYING OUT A ANGE
It is very important to carry out regular range checks to ensure that the
radio control system works reliably. These checks also allow you to
detect problems and sources of interference in good time. This applies in
particular when:
you are using new or altered components, or you have changed the
arrangement of components in the model;
you are using radio control system components which were involved
in a previous hard landing or crash;
irregularities or problems have arisen during previous flights.
Important:
Always carry out the range check with the help of a friend who can
hold and watch the model (vehicles and boats on their running sur-
face).
For a range check install the telescopic transmitter aerial but leave it
completely collapsed.
Don't use a helical stub aerial for range-checking!
No other transmitters should be switched on during the range check.
The range of the RX-7 SYNTH IPD or RX-7 SYNTH DS IPD receiver with
transmitter aerial collapsed down to a single segment should be at least
80 m. We recommend that you disable the IPD filter for range-checking,
so that interference and irregularities are not suppressed. You have
reached the range limit when the servos begin to jitter and move uncon-
trollably, and no longer respond clearly to control commands. If your
transmitter has an automatic servo test program, we recommend that
you set this up for one control function, e.g. rudder, for the range check,
as this guarantees even servo movement, and makes it easier to see
when the receiver no longer responds correctly to control commands.
MULTIPLEX Modellsport GmbH & Co.KG • Neuer Weg 2 • D-75223 Niefern-Öschelbronn • www.multiplex-rc.de
Operating Instructions Receiver
RX-7 SYNTH / RX-7 SYNTH DS IPD — Software V 1.1x
WITCHING
C
HECK
Important:
Carry out the initial range check with the motor or engine stopped.
Repeat the check with the power system operating (all throttle settings):
the range should not be significantly reduced. If it is much lower, seek
out and eliminate the cause of the problem (motor interference,
arrangement of the receiving system components and power supply,
vibration, etc.).
( 11. ).
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