FrSky XHT User manual

Smart Port (S. Port) is a signal wire full duplex digital transmission interface developed by
FrSky Electronic Co., Ltd. All products enabled with Smart Port (including XHT module, X8R receiver, new
hub-less sensors, new Smart Dashboard,etc), serial port user data and other user input/ output devices
can be connected without limitations for numbers or sequences at a high transmission speed.
Introduction
Thank you for purchasing FrSky XHT telemetry module.In order to fully enjoy the benefits of this system, please
read the instruction manual carefully and set up the device as described below.
What’s New!
Two auto-detected modulations of PXX (mode selection, bind, model match, range check, failsafe, etc. on radio
side) or CPPM.
Three selectable modes of D8 (existing 8ch two-way), D16 (new 16ch two-way full duplex transmission) and
LR12 (new 12ch one-way long range).
Smart Port enabled, realizing two-way full duplex transmission.
Detect the module antenna’s working status and give sound warnings if the module antenna is broken or does
not have intact contact, etc.
Super lower latency (approx. 1/3 of current systems) and higher precision (transmitter’s hardware and software
support required, such as FrSky transmitters).
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Overview
Green LED
Flashing
Flashing
ON
RED LED
ON
OFF
Flashing
Status
Normal
Range Check
Binding
LED Indication
Smart Port
Mode and Compatibility
Switch 1
ON
OFF
OFF
ON
Switch 2
OFF
OFF
ON
ON
Mode of XHT
D8
D16
LR12
Not Defined
Compatible Receiver
V8-II series receivers
(V8FR-II,V8R7-II,V84R-II,VD5M,etc.)
D series receiver
(D8R-II plus,D8R-XP,D6FR,D4R-II,etc.)
X series receiver (X8R,X4R,etc.)
L series receiver (L9R,etc.)
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Instruction Manual for FrSky XHT Module
FrSky Electronic Co., Ltd. www.frsky-rc.com Contact us: [email protected]
Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: [email protected]
Version
1.0
● Operating Voltage Range: 6~15V
● Operating Current: 140mA(@6V), 80mA (@12V)
● Output Power: ≤ 100mW
● Modulations: PXX or CPPM (auto-detected)
● Modes: D8, D16 or LR12 (selectable)
● Telemetry Interface: Smart Port
Specifications
● Upgrade Interface: Smart Port
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Binding Procedure
Range Check
Binding is the process of uniquely associating a particular receiver to a transmitter module. A transmitter module can
be bound to multiple receivers (not to be used simultaneously). A receiver can only be bound to one transmitter
module. Follow the steps below to finish the binding procedure.
Number Beep Alarming Meaning
0
1
2
3
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No Beep
Single Beep
Constant double Beeps
Constant triple Beeps
Constant Beeps
The signal strength is strong
The signal strength is adequate
The model is far, but safe range
The model in near maximum range
The module antenna is broken, or does not have intact contact, etc.
Safe Flying Distance
FrSky telemetry system has a feature to return the Received Signal Strength Indication (RSSI) of the receiver to the
transmitter. The transmitter develops an internal voltage representing the receiver signal strength. Alarms are
programmed in the transmitter to warn the pilot when the model is nearing maximum control range. See the table
below for reference.
1. Turn on the transmitter while holding the F/S button on the XHT module (see Mode and Compatibility table
above). Release the button. The RED LED on the XHT module will flash and GREEN LED ON , indicating the
transmitter is ready to bind to the receiver.
2. Connect the battery to the receiver while holding the F/S button on the receiver. The RED LED on the receiver
will flash, indicating the binding process is completed (please refer to the corresponding receiver’s instruction
manual for details).
3. Turn off both the transmitter and the receiver.
4. Turn on the transmitter and connect the battery. The GREEN LED on the receiver indicates the receiver is
receiving commands from the transmitter. The receiver/transmitter module binding will not have to be repeated,
unless one of the two is replaced.
Note: After binding procedure is completed, recycle the power and check if the receiver is really
under control by linked transmitter.
FrSky is continuously adding features and improvements to our products. To get the most from your product, please check
the download section of the FrSky website www.frsky-rc.com for the latest update firmware and manuals
Instruction Manual for FrSky XHT Module
FrSky Electronic Co., Ltd. www.frsky-rc.com Contact us: [email protected]
Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: [email protected]
Version
1.0
A pre-flight range check should be done before each flying session. Reflections from nearby metal fences, concrete
buildings or tress can cause loss of signal both during range check and during the flight.
Follow the steps below to perform the range check.
1. Place the model at least 60cm (two feet) above non-metal contaminated ground (e.g. on a wooden bench).
2. The receiver antennas should be separated in the model, and do not touch the ground.
3. The module antenna should be in a vertical position.
4. Turn on the transmitter and the receiver, press the F/S button on the XHT module for 4 seconds to enter range
check mode, the RED LED will be off, GREEN LED will flash rapidly. The effective distance will be decreased to 1/30
of full range.
5. Walk away from the model while simultaneously operating the controls on the transmitter to confirm all controls’
normal operation.(please refer to the corresponding receiver’s instruction manual for details).
6. Press the F/S button on the XHT module for 1~2seconds to exit range check mode, RED LED will be back on,
indicating normal operation is back.
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