Spektrum's AR6400 is a 6-channel ultra-micro receiver with integrated servos, speed control and ParkZone's X-Port technology. The AR6400 is designed for ultra-micro and ultra light foamy aircraft. Featuring DSM2 technology, the AR6400 is compatible with all Spektrum, JR, E-flite and ParkZone 2.4GHz DSM2 transmitters. Dimensions (WxLxH): 27.75 x 23.45 x 8.10mm, Weight: 3.9 gram

The built-in ESC can supply up to 2A and may be configured to drive an external ESC (e.g. brushless). For details on configuration, view the AR6400 user guide (updated with corrected ESC wiring diagram) or read our notes on using an external ESC with AR6400. Several ESC (the XP-3A and XP-7A) are available with a signal connector to match the 3 pin connector on the AR6400. An ESC Lead is available for you to convert your own speed controller.

NOTE: the onboard servos are rudder (channel 4) and elevator (channel 3). The two servo sockets are for aileron (channel 2) and auxiliary (channel 6) and may be used to drive the Spektrum AS2000 1.5g Micro Servo. The aux channel may be configured to output a reversed aileron signal.

The AR6400 servo sockets are JST-SH with a 1mm spacing - suitable connectors and leads are available. Falcon servos work well with the AR6400. NOTE: if using an existing Falcon 1.6g servo, the the negative and signal leads require swapping (this is already done on servos purchased from Micron). An adapter lead is available to allow connection of unmodified Falcon servos. Other compatible servos include the Blue Arrow 2.5g servos; all are available with AR6400 compatible connectors.

We have a page showing model kits and plans designed for, or easily adapted to, the AR6400.

Suitable plugs and leads for connecting your AR6400 to external components are listed here.

A replacement servo mechanics unit is available, for details see the AS2000.

A version of the AR6400 with twin brushed ESC and no external ESC output. Both brushed ESC are connected to the throttle channel.

Download the user manual.

A version of the AR6400 with long throw servos (9.1mm), ideal for 3D micro models. Dimensions (WxLxH): 27.75 x 23.45 x 8.10mm, Weight: 3.9 gram. Servo specification same as AS2000L.

We have a page showing model kits and plans designed for, or easily adapted to, the AR6400L.

Suitable plugs and leads for connecting your AR6400L to external components are listed here.

A version of the AR6400L with a built-in 3A 2S brushless speed controller. Dimensions (WxLxH): 28.55 x 37.6 x 8mm, Weight: 7.8 gram. Servo specification same as AS2000L.

Download the AR6400LBL user guide.

The battery socket is a 3 pin E-flite balance connector; suitable E-flite 120mAh 2S and 180mAh 2S batteries are available.

Motor and battery leads are available to match the AR6400LBL connectors; use the links below to view them:

• JST-PH Battery Lead for AR6400LBL
• JST Power Adapter Lead for AR6400LBL
• Motor Lead for AR6400LBL Brushless ESC

Replacement receiver module for the Parkzone Vapor and the fore-runner to the AR6400. The module features two on-board linear servos and a 1.5A brushed motor ESC. Dimensions: (WxLxH): 27.75 x 23.45 x 8.10mm, Weight: 3.3g.

The onboard servos are connected to the aileron and elevator channels.

There appear to be two variants of this component:

1. a 'real' PKZ3351 that actually supports 5 channels with channels 4/5 available via PCB tracks (where the AR6400 has sockets). Either sockets can be fitted or servos soldered directly to the PCB. Channel 5 (gear) may be used for driving an external ESC by using a TX mixer to map throttle to gear (e.g. as implemented on the Flight Line Plans Sqeek)
2. a pseudo PKZ3351 which is actually an AR6400 board with modified software. This variant does not support channel 5, so using it to drive an external ESC is not possible.

The method of determining which variant you have is to look at the PCB where the motor socket is located. The pseudo PKZ3351 has a white outline on the PCB large enough for a 3 pin socket. The real PKZ3351 either has no white outline or the outline is only large enough for the 2 pin motor socket. Recent deliveries of the Vapor receiver module have all been variant (2).

The Parkzone 4 Channel DSM2 Transmitter is a low cost companion for this receiver module.

We have a page showing model kits and plans designed for or easily adapted to the PKZ3351. Motor leads are on this page: Connectors/Leads for AR6400.

The Parkzone Night Vapor Receiver module. A 3 channel receiver with on-board servos connected to elevator and aileron channels, a 2A brushed ESC and drivers for the Night Vapor LEDs.

The image actually shows the PKZ3351, the Night Vapor receiver has a socket for the LEDs.

A low cost 4 channel DSM2 transmitter; will operate with all Spektrum, E-Flite, Parkzone, and JR DSM2 receivers. Ideal for micro models using the Vapor Rx/ESC/Servo Module (PKZ3351). Mode 2 - throttle on left.