Bedienungsanleitung Robbe Futaba FX-40 (Seite 21 von 105) (Englisch)

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9. CHANGING THE FREQUENCY BAND

In order to change the frequency band - for example from 35

o 40 / 41 MHz - the RF module for the “new” frequency band

must first be plugged into the transmitter.

• Switch the transmitter on

• The screen displays “ Mismatehed frquency band, Turn off

the power switch, exchange the RF-Module. Continue?”

• Press the “Yes” button, and the Start display appears.

• Press the Spot frequency button in order to move to the

“Frequency” Set-up menu.

• In this menu the screen displays the message “

Mismatches frequency band. Change frequency ?”

• Press the “Yes” button, and the screen now shows the

spot frequency select menu for the 40 / 41 MHz band.

• Select the spot frequency you wish to employ using the

procedure described above.

The frequency bands 35 and 40 / 41 MHz are available for the

European region. Provided that the appropriate RF module is

installed, the software will offer the corresponding spot fre-

quencies from which you can choose as described above.

AREA CODE

In the “Frequency” Set-up menu you will also see a display of

the ar

ea code: “Ar

ea”. Since the RF modules are also area-

coded, this makes it possible to make available only those fre-

quency bands and spot frequencies which are approved for

use in a given region where the equipment is sold and used.

The software only accepts RF modules with the same area

code as the system itself.

MODULATION SELECT

This Set-up menu is also used for selecting the transmitter

modulation. The default setting is the new PCM-G3 system,

which matches the r

eceiver supplied in the set as standar

However, the modulation can also be changed to the following

types, so that you can continue to use other receivers which

you may already own:

• PCM 1024 system

• Standard FM 8-channel (PPM)

• 12-channel FM with 1.3 ms neutral point (MPX)

• 12-channel FM with 1.5 ms neutral point (GR-JR)

It is also possible to switch the direction

of modulation from standard PPM to

reverse PPM, where that is required for

other makes of FM receiver.

Important note:

it has been established that problems can

occur if the transmitter is used with a Multiplex 9-channel or

12-channel IPD receiver. If servo travel is set to more than

135%, or if two channels are mixed together and the total tra-

vel is more than 135%, the receiver may switch to hold-mode!

It is absolutely essential that you check for system compatibi-

lity before using a different make of receiver, and if necessary

contact the manufacturer. Robbe Modellsport accepts no lia-

bility for such combinations.

Changing the frequency

band

FX-40

• The screen now shows a confirmation display, enabling

you to check the new spot frequency. The software asks

you if this information is now to be transmitted to the recei-

ver.

• Press “Yes” to confirm this.

• At this stage the RF transmission of control signals to the

receiver is switched off.

The screen switches to the transmission display, where the

transmission process is displayed in graphical form; the

transmitter emits an audible signal, and the monitor LED

flashes blue.

• During this period you must switch the receiver on; if it is

already on, switch it off, then on again after two or three

seconds.

• To indicate that the receiver has picked up the signal and

switched its frequency, the monitor LED on the receiver

flashes once, and a servo connected to channel 1 moves

briefly to the centre point three times.

• Press “End” when the transmission is successfully com-

pleted.

• The screen now asks whether you want to activate the

radio transmission of the control signals (Yes), or continue

working without broadcasting an RF signal (No).

• If you press the “Yes” button, the transmitter and receiver

work on the newly selected frequency.

NOTE!

The frequency information is broadcast at very low transmitter

power

, with an ef

fective range of about 2 to 3 metres.

For the system to work, it is absolutely essential to extend the

receiver aerial and to fit the transmitter aerial (if you have not

already done so).

The transmission process may fail due to interference if there

is a PC, Blue Tooth device or mobile telephone etc. in the

immediate vicinity, as these transmitters are much more

powerful. If this should happen, take your equipment to a loca-

tion where there is no significant electrical “smog”.

If the monitor LED on the receiver flashes after the frequency

transmission process, or if the receiver fails to carry out the

confirmation signals mentioned above, then the frequency

change has not taken place. Repeat the procedure by pres-

sing the “Repeat” button, and place the transmitter and recei-

ver closer together.

The frequency transmission is carried out on channel 80 in the

35 MHz band, and if this channel should already be in use by

another transmitter, it is possible that the FX-40 will not trans-

mit with sufficient power to complete the frequency change-

over. In this case place the two aerials very close together, or

use the DSC lead to carry out the process.

Robbe Futaba FX-40 Seite 21

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