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Antenna Installation
The AR637T+ receiver has coaxial style
antennas. We recommend installing the antennas
oriented 90º from each other and as far as
possible from metal, batteries, carbon fiber or fuel
tanks to maximize signal reception performance.
NOTICE: Do not cut, kink, or modify the antennas. Damage to the coaxial
portion of an antenna will reduce the performance of the antenna.
Shortening or cutting off the 31mm tip will reduce the range.
Telemetry
The AR637T+ features full range telemetry and will provide receiver battery
voltage, flight log data, and variometer* and altitude* data without any
additional sensors. Additional telemetry devices such as voltage sensors can
be connected to the volt port, and XBus telemetry sensors can be connected
through the XBus connector. Every XBus telemetry device has two XBus ports,
and XBus telemetry sensors can be connected in a daisy chain in any order.
The AR637T+ is not compatible with the Spektrum Temperature Sensor (SPMA9571).
See www.spektrumrc.com for more information about telemetry accesories
* AR637TA receivers included with BNF models do not have a built-in pressure
sensor for altitude and vertical speed data (variometer) measurements. If
you want to add altitude and variometer to an AR637TA, an external sensor
(SPMA9589) can be connected to the XBus system.
Transmitter and Receiver Binding
Programming the AR637T+ receiver requires a Spektrum
compatible transmitter with Forward Programming.
The AR637T+ receiver must be bound to your transmitter before it will
operate. Binding is the process of teaching the receiver the specific code of the
transmitter so it will only connect to that specific transmitter.
1. Connect the optional SRXL2 remote receiver (SPM9747) if desired and any
telemetry sensors to the main receiver.
2. Push and hold the bind button on the
receiver while turning the receiver on.
-OR-
Power the receiver on and then press the
bind button.
IMPORTANT: The receiver will not enter bind mode if
any previously bound transmitters are powered on before the
receiver is powered on.
3. Release the bind button once the orange LED starts to flash continuously,
indicating the receiver is in bind mode.
TIP: It is still possible to use a bind plug in the bind port if desired. This can
come in handy if the receiver needs to be mounted in a location that is difficult to
access, in which case a servo extension may be used for binding. If using a bind
plug, remove after binding to prevent the system from entering bind mode the
next time the power is turned on.
6
Active portion
of antenna
DSM2
/DSMX
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