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MODULE: 75PK-FM
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Module may be easily removed and a module on a different channel (or even band) reinserted to change the
transmission frequency or band.
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Module transmits FM (PPM), HRS-FM (HRS) and PCM. No need for a second module.
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Module is protected under the RF module cover on the top of the radio.
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All transmission circuitry is included in the module, so no retuning is needed when changing channels or even bands.
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Frequency band is changed by inserting a module on the proper band, including for international use.
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In North America it is against FCC regulation to change the crystal within the transmitter module to a different
channel. All such transmitter crystal changes must be performed by a certified radio technician. Failure to properly
tune a system to its new channel may result in decreased range and may also result in interference to other types of
frequency users on adjoining channels.
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The FSS synthesized module for the 9Z family of radios is NOT compatible with the 3PK.
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DISP displays instead of RF when main power is on and module is not installed.
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It is normal for the module to get slightly warm during use.
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Non-Futaba brand modules are not FCC certified for use with this radio and therefore are against FCC regulation to use.
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Do not use other modules in the 3PK or the PK module in other radios.
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Do not operate transmitter with module in and power switch on, while antenna is collapsed. Always extend antenna
if transmitting.
RECEIVER: R203HF or R113iP
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The receiver included with your system is a high-sensitivity narrow-band
single-conversion receiver.
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Any Futaba narrow band PPM(FM) receiver (all produced after 1991) on the
correct band and frequency may be used.
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Any Futaba PCM 1024 receiver on the right band and frequency may be
used. (all 1024 receivers say PCM1024; receivers which say PCM but not 1024
are 512 resolution and not compatible).
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Any Futaba HRS-FM receiver on the right band and frequency may be used. At
the time of this writing, only the R203HF is available. HRS receivers require 6.0V
batteries and digital servos, including for throttle.
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In North America the receiver included with this system may have its frequency changed by simply changing the
crystal, as long as it remains in the same band. You may change anywhere from channel 61 through 90 in the 75MHz
band or A1 through A6 in the 27MHz band without requiring retuning.
NEVER attempt to change a receiver’s band by simply changing crystal (IE removing a 27MHz crystal and inserting
a 75MHz crystal). A receiver that has a crystal installed from a different frequency band without retuning will NOT
receive properly and will have dramatically decreased range if it responds at all.
SERVOS:
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All Futaba PPM(FM) and PCM1024 receivers are compatible with all
J-plug Futaba servos, including retract, winch, standard and digital servos.
NEVER use non-digital servos with HRS
receivers. Severe damage to all electronics may
result, including the possibility of a fire. Only
digital servos may be used with HRS receivers,
including for throttle.
