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Introduction
The Archer line of receivers has been enhanced further with the addition of the new Archer Plus Series.
The Archer Plus Series receivers include some new features. Firstly an enhanced anti-RF-Interference capability
can offer a more solid RF performance, and this is in addition to the receivers with anti-interfere performance in
the spark ignition process. These Plus series receivers are also with both ACCESS and ACCST D16 modes,
where the RF protocol is smart matched during the binding process on the radio. With the Black-Box function,
some basic flight data (like Power & Signal related) can be well preserved.
The Archer Plus SR8 are gyro-stabilized receivers with a built-in 3-axis gyroscope and 3-axis accelerometer and
feature multiple flight modes (Auto-level, Stabilization, Knife-Edge, etc.) and configuration methods.supports
full-range signal strength with dual detachable antennas and guarantees optimal antenna reception and
range.The Archer Plus SR8 can be used as a Primary receiver in a redundant solution by wiring the SBUS In port
and connecting to any other FrSky receiver equipped with an SBUS Out port. With the FBUS protocol, the Archer
Plus series receivers can open up the possibility of seamlessly pairing with multiple telemetry devices (XACT
servos, ADV Sensors, etc.) as well as simplifying the builds setup.
(*Some features require the support of ACCESS and ETHOS.)
Overview
Specifications
● Dimension: 54*20*10mm (L*W*H)
● Weight: 9.8g
● Number of Channels: 8/24 channels
8 High-precision PWM & 16 SBUS channels Mode
8 High-precision PWM & 24 SBUS channels Mode
● Operating Voltage Range: 3.5 -10V
● Operating Current: <65mA@5V
● Operating Range: >2km (Full range) (*Range may vary based on local conditions.)
● Voltage Measurement Range via AIN2 (External device): 0-35V (Battery Voltage Divider Ratio: 1:10)
● Antenna connector: IPEX4
● Compatibility: FrSky 2.4GHz ACCESS / ACCST D16 capable transmitters
Features
● Enhanced Anti RF-Interference capability with more solid RF performance
● Smart-matched ACCESS & ACCST D16 modes
● Supports basic Black-Box function
● Built-in 3-axis gyroscope and 3-axis accelerometer sensor
● Multiple flight modes and configuration tools (ETHOS, LUA scripts, etc.)
● SBUS Out port (Supports 16CH / 24CH mode)
FrSky Electronic Co., Ltd.
Add: F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: sales4tech@gmail.com
Instruction Manual for FrSky ARCHER PLUS SR8 Receiver
54mm
8/24CH Telemetry & Stabilization
www.frsky-rc.com
REG
BUTTON
SR8
Contact us : frsky@frsky-rc.com
10mm
Version
1.0

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Summary of Contents for FrSky ARCHER PLUS SR8

  • Page 1 Archer Plus SR8 can be used as a Primary receiver in a redundant solution by wiring the SBUS In port and connecting to any other FrSky receiver equipped with an SBUS Out port. With the FBUS protocol, the Archer Plus series receivers can open up the possibility of seamlessly pairing with multiple telemetry devices (XACT servos, ADV Sensors, etc.) as well as simplifying the builds setup.
  • Page 2 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver ● SBUS In port (Supports Signal Redundancy) ● Full control range with telemetry (S.Port or FBUS) ● Over-The-Air (OTA) FW update ● External battery / device voltage detection LED State Green LED...
  • Page 3 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Gyroscope Sensor Calibration Ensure the Archer Plus SR8 stabilization function is enabled. [System] → [SRX Stable] [SRX Stable] → [Stabilizing] → [On] Move to [SRX Calibration] tool and calibrate the gyroscope sensor 1.
  • Page 4 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Servo connection & Build the device to the model Backward Connect the servos to the ports of the stabilization device according to the Channel List. Note: Please make sure the 4-pin Port forwards the nose direction of airplane model.
  • Page 5 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Gyro gain adjustment of CH13: When the the value of CH13 is in the center, the gain is zero. The gain increases as the value get bigger. Until the value is ±100%, the gain reaches maximum.
  • Page 6 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Check whether the reaction of the wing servo is in line with the flight attitude caption below in the [Auto-Level] mode. If not, please try to invert the corresponding channel output in the [SRX Stable] tool.
  • Page 7: Self Check

    Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Note: If the compensation direction is incorrect, please reverse the corresponding channel as illustrated above through the [SRX Stable] tool. Check whether the reaction of the wing servo is in line with the radio stick operation in the [Manual] mode.
  • Page 8: Conventional Mode

    Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver Note: The default mode of ARCHER PLUS SR8 is Quick Mode. - If Quick Mode is applied, there is no Knife Edge or (3D) Hover Mode. - CH15 is not used when using Quick Mode.
  • Page 9 1. When Delta wing/Flying wing is selected, the signal produced by the transmitter should be without active mixes on the channels related to AIL and ELE. Archer Plus SR8 will mix the AIL (CH1) and ELE (CH2) input signal with a fixed mix percentage automatically.
  • Page 10 Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver How to Switch High PWM Speed mode 1. The factory default setting is OFF . 2. To go to the receiver [Options], select On to active high speed mode . Warning: High PWM speed mode is only applied for digital servos. Turn off High PWM Speed mode when using analog servo, otherwise servos will get hot and may burn out.
  • Page 11: Range Check

    Version Instruction Manual for FrSky ARCHER PLUS SR8 Receiver About OTA function Go to the [File manager], and select the FW, press the enter button, select [Flash RX by int.OTA]. Power on the receiver, select the RX, go to the [ENTER], complete the flash process, the transmitter will display [Success].
  • Page 12 - Consult the dealer or an experienced transmitter/TV technician for help. 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 FrSky Electronic Co., Ltd.