Novak XXtra 75Mhz 5-channel Synthesized FM Receiver

No more fumbling with crystals in your receiver! Now you can just dial in the channel you want, anything from 61-90 on the 75Mhz ground frequency.

Compatible with Futaba, Hobbico, JR, Airtronics, Sanwa, Hitec and many other radio systems. This tiny receiver is small enough for even your Antweight robot, but is powerful enough for your larger bots too.* Combine with the Hitec Spectra Synthesized Transmitter Module, and never deal with crystals again!

* Note that this is an FM-only receiver, check the rules of the competition you are attending to see if FM is legal in the robot weight class you are planning to enter (usually 60lb and under is fine) .

Spektrum BR6000 Bot Receiver

This upgrade to the AR6000 receiver works only with the Spektrum radio system. The BR-6000 adds new functionality of failsafe on all channels, making it legal for use in BattleBots and other robot combat tournaments.

Spektrum AR6000 Bot Receiver

This is the standard AR-6000 receiver that would normally come with a DX-6 radio system. (Note that The Robot MarketPlace normally includes the BR6000 Bot receiver with all our DX-6 radio systems). Failsafe on throttle channel only. Specifically designed for electric powered planes and helicopters.

JR RS310 3-channel Synthesized FM Receiver

JR's compact, lightweight RS-310 fits easily into most RC vehicles and works with all JR & Airtronics radios. It provides crystal-free convenience and unsurpassed noise rejection, thanks to it's sophisticated 3 Channel FM ABC&W circuitry. Forget about those crystals... Now you can just dial in the channel you want, anywhere from 61-90 on the 75Mhz ground frequency.

JR has a unique signal processing system called ABC&W. ABC&W stands for Automatic Blocking Circuit with Window. ABC&W systems have distinct advantages over single or dual conversion receivers. ABC&W systems create a very small electronic window that looks for the specific frequency that the receivers crystal is on. Any signal that is off spec for this window is rejected, and then the allowed signal is cleaned up, amplified, and re-routed through the window many, many times till all that is left is the pure signal on the channel that is coming from your transmitter and then sent on to the servos. This all takes place without any noticeable delay of response from your stick movement to the servo. This technology is the reason that JR can produce single conversion receivers that have fewer components and weigh less than other single and dual conversion receivers without the worry about outside interference

* Note that this is an FM-only receiver, check the rules of the competition you are attending to see if FM is legal in the robot weight class you are planning to enter (usually 60lb and under is fine) .

JR 75Mhz R700 FM Receiver (no crystal included)

7 Channel FM slimline receiver. Considerably smaller than an equivalent Futaba 7 channel receiver!

Length: 46mm
Width: 24mm
Height: 15mm
Weight: 18g (0.64 ounce)

Like all JR FM receivers, the R700 features the excellent interference protection of JR's patented ABC&W circuitry. JR's R700 7-Channel FM Slimline Receiver is compatible with any current JR FM aircraft system.

Crystals available on the crystals page

JR 75Mhz R135 3-channel FM Receiver
(no crystal included)

3 Channel FM receiver
Perfect size for Antweight robots!

NOT AVAILABLE on 72Mhz (aircraft)

Power Requirements: 4.8 to 6.0 volts
Size: 1.25" x 1.75" x 0.81"
Weight: 1.0 oz.

JR's R135 3-Channel FM Receiver is compatible with all JR FM 75Mhz systems.

JR 72Mhz R770 7-channel PCM Aircraft Receiver
(no crystal included)

Don't let the small size and lightweight of this 7-channel PCM receiver fool you into believing they aren't also incredibly sophisticated. JR's patented ABC&W technology processes the signal received from your transmitter at the speed of light through a series of increasingly small electronic windows. JR has a unique signal processing system called ABC&W. ABC&W stands for Automatic Blocking Circuit with Window. ABC&W systems have distinct advantages over single or dual conversion receivers. ABC&W systems create a very small electronic window that looks for the specific frequency that the receivers crystal is on. Any signal that is off spec for this window is rejected, and then the allowed signal is cleaned up, amplified, and re-routed through the window many, many times till all that is left is the pure signal on the channel that is coming from your transmitter and then sent on to the servos. This all takes place without any noticeable delay of response from your stick movement to the servo. This technology is the reason that JR can produce single conversion receivers that have fewer components and weigh less than other single and dual conversion receivers without the worry about outside interference.

This is a 72Mhz receiver.
NOT AVAILABLE on 75Mhz (surface)

Power Requirements: 4.8 to 6.0 volts
Size: 0.61 x 1.84 x 0.98"
Weight: .75 oz.
Antenna length: 39"

JR's R 770 7-Channel PCM Receiver is compatible with all JR PCM 72Mhz systems.

75Mhz Micro Receiver MBP-9G4

This is a small 6 gram, 4 channel, Universal FM/PPM micro receiver that uses standard 75MHz single conversion crystals. (Crystals not included). Perfect for US Ants (1lb.)

Key Features:
Universal transmitter compatibility. (Futaba, JR, Hi-Tec, Airtronics - Not compatible with some Pistol Style Radios)
Superior reception range. (over 1500 ft.)
Uses common 75MHz single conversion crystals.
Lightweight small construction and a flat design that saves space in your Ant-Weight.

Specifications:
Dimensions: 10 x 32 x 12 mm
Weight: 6 grams
Channels: 4
Range: 500 meters (over 1500 ft.)
Modulation: FM or PPM
Power: 3.5 - 7 volts
Connector: standard 3-pin (universal)
Signal shift: automatic, accepts (+) and (-) shift
Tuner Type: single conversion, narrow band
Plug Type: "S" connectors, universal for (Futaba, JR, Hitec, Airt-Z)
Compatibility: any FM or PPM transmitter

Important Info:
For Futaba systems, use only single conversion crystals that match your 75MHz transmitter (JR crystals work fine). Do not reverse polarity of the power source. Any channel can be used as battery input. Do not use outside the voltage range. Do not short input/output pins or pc board. Do not coil antenna (reception loss occurs). Trimming the antenna reduces range.

GWS 6-channel R6NII NARO Receiver

This is a small 7.8 gram, 6 channel, Universal FM/PPM micro receiver. Perfect for US Ants (1lb.)

Don't let its small size and low price fool you! This is a great little receiver, very shock-resistant and with a nice long range.

(Vertical Pin Model)

(Horizontal Pin Model)

GWS 4- channel R4PII 75Mhz Pico Receivers

This is the very tiny 75Mhz receiver that is taking the small combat robot world by storm. Tiny and very lightweight at only 4.4 grams! Also tested in many combat robots and is extremely shock-resistant.

We offer two different models, one with horizontal pins out the side, and another with vertical pins. You can pick whichever will fit your model the best, they are essentially the same unit other than the pin configuration.

We offer this receiver in two formats- Positive shift (for JR and Airtronics radios) or Negative shift (for Futaba and Hitec radios). Either model will work fine with GWS radios.

Specifications:

Nano Receiver MBP-3G4

This is a tiny 3 gram, 4 channel, Universal FM/PPM nano receiver that uses standard 75MHz single conversion crystals. (Crystals not included).
Perfect for UK Ant-Weighs (150g) and or Flea-Weights (50g).

Key Features:
Universal transmitter compatibility. (Futaba, JR, Hi-Tec, Airtronics - Not compatible with some Pistol Style Radios)
Uses common 75MHz single conversion crystals. (add wires and place in any orientation)
Ultra lightweight and tiny construction.

Specifications:
Weight: 3 grams
Channels: 4
Range: 100 meters (over 300 ft.)
Modulation: FM or PPM
Power: 3.5 - 7 volts
Signal shift: automatic, accepts (+) and (-) shift
Tuner Type: single conversion, narrow band
Plug Type: micro JST
Compatibility: any FM or PPM transmitter
Crystal compatibilty: most brand name crystals will work, but with some soldering, although the GWS UM-1 is a perfect fit

We highly recommned adding the MBP-RC Nano Plug (shown below) for this reciever.

One Male micro JST plug (receiver end). Buy 2 so you can connect the MBP-3G4 Receiver to both channels of your dual ESC.

Key Features:
Specially made to go with the MBP-3G4 Receiver to connect to your MBP-UK1.
Ultra thin wire to save even more weight.

Important Info:
For Futaba systems, use only single conversion crystals that match your 75MHz transmitter (JR crystals work fine). Solder 2 wires to your crystal to plug into receiver. Do not reverse polarity of the power source. Any channel can be used as battery input. Do not use outside the voltage range. Do not short input/output pins or pc board. Do not coil antenna (reception loss occurs). Trimming the antenna reduces range.

Nano Receiver Spare Plug

Spare receiver plug for the MBP-3G4 Nano Receiver.

One Male micro JST plug (receiver end). Buy 2 so you can connect the MBP-3G4 Receiver to both channels of your dual ESC.

Key Features:
Specially made to go with the MBP-3G4 Receiver to connect to your MBP-UK1.
Ultra thin wire to save even more weight

Futaba R138DP PCM Receiver (no crystal included)

8 Channel PCM receiver

Power Requirements: 4.8 to 6.0 volts
Current Drain: 13mA
Length: 2.50" (63.5mm)
Width: 1.38" (35.0mm)
Height: 0.88" (22.0mm)
Weight: 1.75 oz (50 g)

Crystals available on the crystals page

Futaba 75Mhz R113iP PCM Receiver (no crystal included)

3 Channel PCM1024 receiver. Now you can use a tiny receiver in your PCM-controlled robot or model!
Perfect size for Antweight robots!

NOT AVAILABLE on 72Mhz (aircraft)

REQUIRES Futaba 'short' crystals (see crystals page)

Power Requirements: 4.8 to 6.0 volts
Length: 1.69" (42.7mm)
Width: 1.13" (28.7mm)
Height: 0.63" (16mm)
Weight: 0.74 oz.

Futaba 75Mhz R133F FM Receiver (no crystal included)

3 Channel FM receiver
Perfect size for Antweight robots!

NOT AVAILABLE on 72Mhz (aircraft)

REQUIRES Futaba 'short' crystals (see crystals page)

Power Requirements: 4.8 to 6.0 volts
Length: 1-1/2" (38mm)
Width: 1" (25mm)
Height: 5/8" (16mm)
Weight: 0.72 oz.