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DSMX Compatible PWM 7-Channel diversity antenna receiver

Lemon Rx 7-CH DSMX / DSM2 Compatible Telemetry Receiver LM0052 (Vario + Energy Meter + Altitude) XT60 Package



Lemon RX
PDF icon Manual2.87 MB

This telemetry receiver combo set from Lemon Rx, is a result of 2 years of development. LM0052 is the world’s smallest, DSMX compatible, full-range telemetry system. Just about every major telemetry parameter is found in this tiny package; including a barometer/variometer that reports altitude and vertical speed, an XT60 energy meter, which measures battery voltage up to 30v and current up to 60A, internal and external temperature sensors and support for RSSI (Received Signal Strength Indicator). Telemetry from the LM0052 can both be displayed on-screen and spoken by recent Spektrum telemetry-enabled transmitters and even OpenTx radios running a multiprotocol module. The receiver itself offers 7 PWM channels, diversity antennas, 3 failsafe options and a port to connect a satellite receiver for even better signal security.


  • High accuracy barometer built-in to the receiver to provide altitude and vario information
  • True Full-range diversity telemetry provides plane information in real-time as far as you can fly your plane with any DSMX or DSM2 compatible transmitter
  • Energy metering system (mAh, V, Current) are included with the provided V/I sensing unit
  • 2-stage failsafe best suited for gasoline / electric application (Selectable failsafe for pre-defined position as throttle only or all channel failafe in the event of signal absence)
  • Diveristy extended antenna receiver with state-of-the-art RF circuit providing umatched performance of reception
  • Real time RSSI output as analog voltage / displayed on transmitter A parameter
  • Glider may use the inlcuded wiring for battery voltage sensing only if energy  metering system is not required for absolute weight reduction
  • Optional diversity satellite maybe used to provide total of 4 receiving antennas

Compatible Transmitters:

  • Telemetry from the LM0051/52 can both be displayed on-screen and spoken by recent Spektrum telemetry-enabled transmitters: DX6G2/3, DX7G2, DX8G2, DX9 (all versions), DX10t, DX18 (all versions except the first), and DX18t. The new iX12 transmitter is fully telemetry-enabled. 
  • The current DX6e, as well as the older first generation DX8 and the original DX18, can display telemetry data on-screen and have some limited alert beeps and vibration, but lack voice capability and therefore cannot speak alarms.1 
  • Older Spektrum radios, such as the original DX7 and the DX6i have no telemetry functionality, and neither do such JR radios as the X9503. 
  • The LM0051/52 and other Lemon Telemetry equipment are compatible with Taranis and Horus transmitters using the Multimodule 4in1 or iRange RF modules. OpenTX version 2.2 or later will automatically recognize the Lemon telemetry data. 
LM0052 telemetry range comparsion with Spektrum and Orange 
The outstanding telemetry range of LM0052 are tested with Spektrum and Orange telemetry capable receiver as a basic performance benchmark. Please note that for fairness of this testing as the other receiver may not contain diveristy antenna unlike the LM0052, the setup is performed such that diveristy will have no advantage of any range improvement during this test.

Telemetry reporting
Below listed telemetry reporting are available with the purchased package. No additional purchase is required.
- Included sensors / interface: Alltitude, Vario, Energy meter (Receiver voltage, Battery voltage, mAh consumed, Current), Temeprature (Internal automatically selected when the inlcuded external temperature probe is not used), RSSI out (3V to 0V) and displayed on transmitter A parameter
Telemetry receivers' feature
Comparision of Lemon Rx full-range telemetry capable diversity receiver.
RCgroups discussion (Click below link for user manual page with link to RCGroups)
Quick start-up guide / tips
V/I sensor calibration
- V/I sensor would normally not need calibration with the LM0052 bundled unit
- V/I sensor can be calibrated following section F of LM0041 user manual
Step for setting failsafe
Fail-safe activates when the receiver no longer receivers signal (Eg. Transmitter is off / signal loss). There are 3 possible setting which are:
    - No signal output to servo
    - Output predefined throttle signal only
    - Output predefined signal for all channels
1) Insert bind plug
2) Provide power to the unit and bind the unit but do not remove bind plug
3) Set your transmitter to the perferred position as failsafe default output and hold it to this position.
3) press the button briefly will cause the green light to be in the following status. Press the button while maintain your perferred position of the channel:
     - Green LED status - none: No pulse to servo with the absence of correct reception
     - Green LED status - flashing: Throttle-only preset. Throttle position had been acquired as failsafe default output
     - Green LED status - solid: All-channel preset. All channels' position had been acquired as failsafe default ouptut
4) Remove bind plug
5) Turn off the transmitter now while power is still provided to receiver. You can now observe the failsafe status when no transmitter signal is present to the receiver. Please becareful that your propeller may turns if you set throttle channel above 0% in the event of signal losses. Failsafe can be useful as a last rsource to save plane for unexpected situation when the receiver is no longer receiving signal from transmitter such as interference problem.



1) This is not a Spektrum DSMX or DSM2 product, nor is it a copy of a Spektrum DSM2 or DSMX product. The Spektrum, TM1000, AR9020, DSMX and DSM2 brand is a trademark of Horizon Hobby, Inc.
2) This is not an underground black market fake Spektrum product. Lemon Rx quality is guaranteed.
3) Lemon Rx products are tested to be compatible with Spektrum's DSMX and or DSM2 product (Spketrum, DSMX and DSM2 are the registered trademark of Horizon Hobby, Inc.).
4) The Hobby King, R1020X V2 brand are the trademark of Hextronik Limited.

  • Type: DSMX Compatible PWM 7-Channel diversity antenna receiver
  • Model No: LM0052
  • Number of Channel: 7 (PWM signal)
  • Modulation: DSMX Compatible (Also DSM2 backward Compatible)
  • Band: 2.4 GHz
  • Dimension: 44(L) x 24(W) x 15(H)  mm
  • Weight: 9.56g
  • Voltage Range: 4.5 - 8.5V


  • 1x Lemon Rx LM0052 (Telemetry Receiver with Barometer)
  • 1x Voltage probe
  • 1x Temperature probe
  • 1x XT60 Energy Meter
  • 1x Adhesive Mounting Pad

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