BetaFPV 85X 4K 4S Whoop Quadcopter – FrSky

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$23,918.81

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Filming HD on a whoop is one thing, but 4k!? The Beta85X 4K makes it possible – all while maintaining agility and power thanks to 4S support from new and improved components.

BETAFPV takes cine-whoops to a whole new level with the Beta85X 4K. Equipped with a Tarsier 4K 30fps camera, you can capture breathtaking flight footage unheard of on a micro quad.

Extreme power & speed never before seen on a Beta85X is now possible with a 4S battery. The BLHeli_32 16A V2 ESC, EMAX Avan 2″ props and 1105 5000KV motors give you more power and punch, the most exciting flying experience you’ve ever had flying a Beta85X. You can rip it in races, do cool freestyle, or even dive buildings!

Features

  • F4 V2 FC board has added extra 4 pluggable ports for ESC, VTX, RX and LED board, convenient installation and decreasing the dislocated PIN mounting.
  • High-performance STM32F405 processor FC boards and tuned Betaflight OMNIBUSF4SD (OBSD). Faster input signals with lower latency and higher update rate are possible.
  • Replaced stock antenna with a Lumenier Micro AXII antenna for maximum range and clarity of video feed.
  • Using single N-channel MOSFETs on ESC board which have a lower inner resistance. It is dual MOSFETs on the original BLHeli_32 ESC board.
  • Soldered with 25V/220uf of electrolytic capacitors for protecting the ESC board, reducing the defect rate caused by the quick bursts of high voltage.
  • Installed with Caddx Tarsier 4K camera with and included ND8 filter which supports APP setting and switchable resolution setting of 4K, 2.7k, 1440P, 1080P.
  • Optimized 1105 motor from 6000KV to 5000KV, with a lightweight but powerful feeling.
  • To increase its stability, we specially add an extra stiffener brace of carbon fiber to the frame. No soldering or tinkering necessary!
  • 450mAh 4S high rate battery is recommended. But pilots could also use other 3-4S batteries. (Not included)

For 85mm brushless whoop drones, there are 3 versions for your choice – Beta85X FPVBeta85X HD and Beta85X 4K.

Specifications

  • Weight: 88.6g (without battery)
  • F405 V2 Flight Controller and 16A BLHeli_32 ESC
  • Motors: 1105 5000KV with connector
  • Props: 2″ 4-Blades Props
  • Camera: CADDX Tarsier 4K
  • Canopy: Canopy for Tarsier 4K camera
  • Receiver option: Frsky XM+ / DSMX / TBS Crossfire
  • Recommend battery: 4S 450mAh Battery (Not included)
  • Antenna: 5.8GHz Micro AXII antenna
  • Flight time: 4min – 6min with 450mAh 4S battery

FC Specifications

  • CPU: STM32F405 (Overclock to 240MHz)
  • Six-Axis: MPU6000
  • Size: 26mm x 26mm, whoop mounting pattern
  • Firmware version: Betaflight OMNIBUSF4SD (OBSD)
  • OSD: Built-in BetaFlight OSD (STM32 controls OSD chip over SPI in DMA mode)

ESC Specifications

  • Support BLHELI_32
  • Support PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600, Dshot1200
  • Input voltage: 3-4S lipo
  • Continuous current: 16A
  • Peak current: 19A
  • Firmware target: BETAFPV-16A-32bit
  • MCU: STM32F051K66

Camera Specifications

  • Weight: 19.5g
  • FOV: 4KF 2.8, FOV 150°(16/9), FPV FOV 165°(4/3)
  • Lens: Dual lens 2.8 / 12Mega
  • Image Sensor: 12M SONY sensor
  • TV System: NTSC / PAL, can be changed
  • Anti-Shake: Hardware anti-shake
  • Scene Mode: Auto / Personage / Scenery / Defog
  • Recording Timing Larm: OFF / 1mins / 3mins / 5mins / 10mins
  • Horizontal Resolution: 1200TVL
  • Image: 16:9 / 4: 3 (changeable)
  • Camera OSD: Separate OSD
  • The camera tilt angle is switchable from 20 degrees to 30 degrees with an ND8 filter.

AXII Antenna

BETAFPV lost a bunch of prototype drones because of this AXII antenna. Why? The 5.8g VTX signal is still perfect when the RC radio transmitter connection breaks up! This is why we chose this micro antenna for the Beta85X 4K.

Micro AXII 5.8GHz Antenna is the next evolution of the world’s most popular FPV antenna, designed by TrueRC and manufactured by Lumenier.

Learn more about Lumenier antennas.

What Was Done To Support 4S?

This Beta85X has upgraded in individual parts like FC, ESC, Motor, which can support 4S power with a steady performance and bring you into a new FPV experience.

F4 FC & BLHeli_32 ESC

  • Support 4S Power. Written for ESC’s that utilize 32-bit MCU. With the increase in processing power, faster input signals with lower latency and higher update rate would be possible in BLHeli_32, such as Dshot1200!
  • Using single N-channel MOSFETs on ESC board, which have a lower inner resistance. It is dual MOSFETs on the original BLHeli_32 ESC board.
  • Current sensor included.
  • ESC is mounted on the frame by screws and connected with FC boards by cables.

Power Capacitor

Soldering with a 25V/220uf electrolytic capacitor, reduced the defective rate caused by the instantaneous high voltage.

1105 5000KV Motor

Lower 5000KV for new Beta85X 4S, which could support 4S power which won’t cause the issue of overheating. Also, changed motor cables from 30AWG to 28AWG.

Frame Stiffener Brace

The stiffener brace of carbon fiber reinforced the Beta85X frame, avoids the instability caused by too much power when Beta85x is flying.

Caddx Tarsier 4k Camera

Tarsier camera is the first DVR boards that could support [email protected] recording. Here is the basic manual for you to start recording when using the Beta85X 4K drone.

There are 2 buttons on the DVR board. One is for wifi and recording. The other one for power and recording video mode.

Short PressLong Press (5-8s)
Wifi/Record ButtonStart/Stop RecordingStart Wifi
Power/Mode Button Switch Video ResolutionTurn on/off Camera

There are 2 LEDs to indicate recording status.

FlashingFlash Solid
Wifi LEDWifi is power on and not connectedConnected
Mode LEDRecordingNot Recording

Also, there is a CADDX Tarsier APP on Apple Store (for IOS phone) or Google Store (for Android phones). Through the APP, you could change the settings like Metering, White Balance, EV compensation, IOS limit, Sharpness, Contrast, Saturation.

VIDEO QUALITY AND SHOOTING TIPS

We cared a lot about the video quality of this 4K drones. Here is some you must know about and some advice for perfect videos!

[email protected] VS [email protected]

The frames per second of the Caddx Tarsier camera is 30fps in 4K mode. It is suitable to fly slowly and smoothly. But if the drone flys quickly or turns around, the scenes seem to be out of focus and fuzzy. At this time, we would recommend you to shoot in [email protected] if you are doing aggressive flying but still want smooth recordings.

How to change the Tarsier mode between 4K and 2.7K?

You should change the recording resolution through the Caddx APP. The other method is just short press Power/Mode Button, as shown in the image above. The mode is indicated by the color of the Mode LED.

  • Mode LED -> Red -> 4K mode
  • Mode LED -> Green -> 2.7K mode

Jello and Vibration

The 85X drone is tuned carefully to avoid vibration and it should be no jello on the video. BUT, but if you fly it outdoor and sunlight, an ND filter is MUST. Use the ND8 Filter to get better footage and eliminate the Jello effect.

Props Out

The Beta85X drone also comes with “props out” by default. Why we need “props out” direction?

Default Betaflight props direction, quadcopter dips and “washes out” in hard corners. With reversed props or “props out”, no more dipping even in the hardest cornering.

Know more about “Props Out”.

How to Setup your Beta75X

Much of this setup guide applies to the Beta85X as well.

Community Discussion

Join the online discussion about our X Series Whoop drones at RCGroups.com:

Package Includes

  • 1 x Beta85X 4K 4S Whoop Quadcopter
  • 1 x ND8 filter for Tarsier 4K camera
  • 1 x OSD menu board

No batteries included. Purchase 3-4S batteries (XT30) separately.

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