Aircraft Frequencies - FUTABA 9 CHP SUPER Instruction Manual

Range Testing Your R/C System
Please note that different systems demonstrate different range checks and the same system will range check differently in
different conditions. Also, the receiver antenna's installation affects the range test -- exiting the top of the model is ideal.
This is a brief explanation of range test. For more in-depth specifics on receiver antenna mounting, additional checks if
unsatisfactory rage is demonstrated, range checking with gasoline powered engines, etc, please see our F.A.Q. page at
www.futaba-rc.com.
• Leave the transmitter's antenna retracted and be sure both batteries are fully charged.
• Position the aircraft away from wires, other transmitters, etc.
Test one - engine/motor off, minimum of 100 ft. range
• Have a friend view the model but not hold it, engine off. (People conduct signals, too!)
• Walk away from the model, working all controls constantly. Stop when the servos jitter significantly (a jitter here
and there is normal), control movement stops (PCM), or you lose control altogether.
• Measure the distance. If greater than 100 feet, great! Proceed to Test 2. Less than 100 feet of range check means you
need more information to determine if your system is safe to fly. Please see our web site or call support for addi-
tional tests to perform before flying your system.
• Repeat with friend holding the model. Note any differences.
Test two - engine/motor on
• Repeat the test with the model's engine running and with someone holding the model. If a decrease of more than
10% is noted, research and resolve the cause of interference prior to flying your model.
What your fully operational system demonstrates is the normal range for your system in those conditions. Before every
flying session, it is critical that you perform a range check. It is also required by the AMA Safety Code. If you notice a
significant decrease in range with fully charged batteries, do not attempt to fly.
Aircraft (fixed wing and helicopter) Frequencies
The following frequencies and channel numbers may be used for flying aircraft in the United States:
72 MHz band
Ch. MHz Ch.
11 72.010 36
12 72.030 37
13 72.050 38
14 72.070 39
15 72.090 40
16 72.110 41
17 72.130 42
18 72.150 43
19 72.170 44
20 72.190 45
21 72.210 46
22 72.230 47
23 72.250 48
24 72.270 49
25 72.290 50
26 72.310 51
27 72.330 52
28 72.350 53
29 72.370 54
30 72.390 55
31 72.410 56
32 72.430 57
33 72.450 58
34 72.470 59
35 72.490 60
MHz
72.510
72.530
72.550
72.570
72.590
72.610
72.630
72.650
72.670
72.690
72.710
72.730
72.750
72.770
72.790
72.810
72.830
72.850
72.870
72.890
72.910
72.930
72.950
72.970
72.990
50 MHz Band
(Amateur Radio Operator "HAM" license required)
Ch. MHz Ch. MHz
00 50.800 01
02 50.840 03
04 50.880 05
06 50.920 07
08 50.960 09
Installing your frequency number flag:
It is very important that you display your transmitting chan-
nel number at all times. To install your flag, peel off the chan-
nel number's backing sheet, and carefully stick the numbers to
both sides of the number holder. Now you can snap the number
holder onto the lower portion of the antenna as shown in the
figure — use the clip that fits more snugly on your antenna.
You may wish to cut off the other, unused clip on the other side
of the flag.
17
50.820
50.860
50.900
50.940
50.980