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CONNECTION OF RECEIVER, SERVOS, ETC.
(Installation precautions)
When installing the receiver, servos, and other parts to the fu-
selage, observe the following precautions:
Servo travel
Operate each servo horn over its full travel and check that the
pushrod does not bind and or is not too loose. Unreasonable
force applied to the servo horn will adversely affect the servo
and drain the battery pack very quickly. Make sure that the
free travel range of each control surface or mechanism
somewhat larger than the full control travel (including trim) of
the servo horn. Adjust the servo horns so that they move
smoothly even when the trim lever and stick are operated si-
multaneously in the same direction.
Servo installation
Install the servos with the rubber
grommets and eyelets supplied with
the set. (FIG.8) Do not tighten the
screws too tight. If the servo case di-
rectly contacts the fuselage, the rub-
ber bushing will not serve its pur-pose.
Receiver power switch installation
When installing the switch harness to the fuselage, cut a rect-
angular hole slightly larger than the full travel of the switch in
the fuselage and install the switch so that it moves smoothly
from ON to OFF. Also install the switch where it will not be
exposed to engine oil or dust and dirt. Generally, install the
receiver switch on the opposite side of the muffler exhaust.
Receiver antenna
Although the receiver
antenna may appear to
be too long, do not cut it
or fold it back. Chang-
ing the length of the re-
ceiver
antenna
will
lower the receiving sen-
sitivity and shorten the
flight range. Generally,
the antenna can be strung out towards and attached to the
vertical stabilizer. (FIG.9)
Receiver vibration and water proofing
The receiver contains precision electronic parts. Besides be-
ing susceptible to vibration and shock, the entry of water will
also cause erroneous and dangerous results and has been
associated with crashes and other accidents. Wrap the re-
ceiver in foam rubber or take other vibration countermea-
sures. Also waterproof the receiver by placing it in a plastic
FIG.9
"Install the antenna by stretching
it slightly with a rubber band, etc.
"Use a rubber bushing so that the antenna
will not be broken by abrasion where it
comes through the fuselage and always
knot it inside the fuselage so that it will
not come out.
bag and securing the open end of the bag with a rubber band.
Do the same with the receiver and servo battery.
Servo horns
Spare horns are supplied. Use them as needed.
Extension cord
Use the servo extension cord if needed for your particular
fuselage.
Digital Proportional Frequencies For U.S.A.
• The frequency of Futaba digital proportional sets can be
changed within their own band. There are 2 different bands
for you to choose from (27 MHz and 72-75 MHz). Please see
chart listed below for specific frequency and its intended use.
Please note there are specific frequencies allocated for air-
craft only and surface only use.
• The frequency can be changed within the same BAND. How-
ever, Futaba recommends that you return your system to our
factory service department for frequency changing, as tuning
may be necessary for proper operation. Changing frequency
from one band to another is NOT possible.
Always change frequency flag when frequency is changed.
The frequency flag is to be attached to the top of antenna and
the channel designation to the base. (See Drawing)
• It is illegal to change crystals on 72-75 MHz bands in the
U.S.A. unless performed by a licensed technician.
Antenna Frequency Flag
Attach the frequency flag to the flag
holder as shown in the figure.
Frequency, Channel No. Flag Color For U.S.A.
26-27 MHz-Aircraft/car/boat
Color
26.995
Brown
27.045
Red
27.095
Orange
27.145
Yellow
27.195
Green
27.255
Blue
50/53 MHz-Aircraft/car/boat-Fcc Amature Licence required (2
and 3 channels not produced on these frequencies).
Channel
No.
50.800
RCOO
50.820
RC01
50.840
RC02
50.860
RC03
50.880
RC04
50.900
RC05
50.920
RC06
50.940
RC07-
50.960
RC08
50.980
RC09
72MHz-Aircraft only
72.010 11
72.210 21
72.030 12 72.230 22
72.050 13 72.250 23
72.070 14 72.270 24
72.090 15 72.290 25
72.110 16 72.310 26
72.130 17 72.330 27
72.150 18
72.350 28
72.170 19
72.370 29
72.190 20
72.390 30
75 MHz-Car/boat only
75.410
61
75.430
62
75.450
63
75.470
64
75.490
65
75.510
66
75.530
67
75.550
68
75.570
69
75.590
70
-4-
The flag can be attached to.
1 Slick the channel No. sticker
and removed from. the
on the flag board.
antenna with one touch.
2 Attach the flag board to the
antenna as shown in the
figure
Color
53.100
Black-Brown
53.200
Black-Red
53.300
Black-Orange
53.400
Black-Yellow
53.500
Black-Green
53.600
Black-Blue
53.700
Black-Violet
53.800
Black-Gray
72.410 31
72.610 41
72.810 51
72.430 32 72.630 42
72.830 52
72.450 33 72.650 43
72.850 53
72.470 34 72.670 44
72.870 54
72.490 35 72.690 45
72.890 55
72.510 36 72.710 46
72.910 56
72.530 37
72.730 47
72.930 57
72.550 38 72.750 48
72.950 58
72.570 39
72.770 49
72.970 59
72.590 40 72.790 50
72.990 60
75.610
71
75.810
81
75.630
72
75.830
82
75.650
73
75.850
83
75.670
74
75.870
75.690
75
75.890
85
75.710
76
75.910
86
75.730
77
75.930
87
75.750
78
75.950
88
75.770
79
75.970
89
75.790
80
75.990
90
84
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