FrSky TFR4-B


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The FrSky TFR4-B is a 4-channel Futaba FASST compatible receiver. The receiver provides CPPM and RSSI output.

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This product is no longer in stock

Price without tax 769 Kč

Price with tax769 Kč

Including 0 Kč for ecotax

In stock FW 2014


  • CPPM and RSSI (PWM) output. If CH3 and CH4 are linked, CH1 is CPPM for CH1 to CH8, and CH2 is RSSI (PWM).
  • Two ways to set up failsafe - transceiver
  • light and small


  • 4 channels:
  • working voltage: 3.5-10 V
  • Temperature: -10 to 80 ℃
  • Dimensions: 42 mm × 17 mm × 7 mm
  • Weight: 4.6 g / 4 g without packaging
  • Compatibility: FASST 2.4G Air Systems (7CH Mode / Multi Mode): 6EX, 7C, TM-7, TM-8, T8FG, T10C, TM-10, T10CG, T12Z , T12FG, TM-14, T14MZ, etc. FASST 2.4G Surface Systems (C1 Mode): 3PK, 4PK, etc.


To pair, hold the F / S button and connect the power to the receiver. When the red LED goes out and the green LED is on, pairing is completed.


The receiver supports two kinds of filesafe:

  • Broadcast

If the filesafe in the transmitter is not turned off, the receiver will use its settings.

  • Custom Failsafe Settings on All Channels

Pair the receiver and turn off the filesafe in the transmitter. Set the channels to the desired positions, briefly press the F / S button, and the green LED will blink twice to indicate that filesafe values ​​are stored in the receiver.

To cancel custom fileafe settings, you need to pair the receiver again.


Red LED Green LED Meaning
off is lit normal mode
is lit is lit is waiting for pairing
flashes is lit signal loss
will blinks twice save filesafe

CPPM and RSSI (PWM) output
If the CH3 and CH4 signal pins are connected, CH1 is the CPPM for CH1 to CH8, and CH2 is the RSSI (PWM) .

Due to its length, the CPPM cannot support all 8 channels when channel deflections are set to their maximum. Therefore, only 6 channels are recommended.

On all items we offer warranry 24 months.
Spare parts and battries capacity 6 months.


We provide warranty and post warranty services.

Original manual in PDF

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