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Radiomaster

Radiomaster DBR4 Dual band Xross Gemini ExpressLRS Receiver

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AI Summary
RC Receivers for Drones and Bots for everyday users

The Radiomaster DBR4 Dual band Xross Gemini ExpressLRS Receiver by Radiomaster is a mid-range rc receivers for drones and bots designed for everyday users. It features Item Type: Receiver and Frequency (GHz): 2.404 - 2.479 GHz / 903.5 - 926.9 MHz.

compact and portable
₹4,999
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Total: ₹4,999
Buying tip: A quality investment for dependable performance and premium build quality.
Estimated delivery: 18 Aug1 Sept
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Quick Specs

Item Type: Receiver
Frequency (GHz): 2.404 - 2.479 GHz / 903.5 - 926.9 MHz
No. of Channels: 2
Modulation Type: ExpressLRS Gemini
Color: Black
Operating Voltage (VDC): 4.5 – 8.4

Ideal For

Everyday convenience
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SKU: robu-2553782Category: RC Receivers for Drones and Bots

About This Product

The Radiomaster DBR4 Dual band Xross Gemini ExpressLRS Receiver by Radiomaster is a mid-range rc receivers for drones and bots designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Receiver
  • Frequency (GHz): 2.404 - 2.479 GHz / 903.5 - 926.9 MHz — smooth, flicker-free operation
  • No. of Channels: 2
  • Modulation Type: ExpressLRS Gemini
  • Color: Black
  • Operating Voltage (VDC): 4.5 – 8.4 — works with standard household power
  • Shipping Weight: 0.02 kg
  • Shipping Dimensions: 12 × 9 × 2 cm

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

The Radiomaster DBR4 Dual Band Xross Gemini ExpressLRS Receiver delivers unmatched dual-frequency reliability with ExpressLRS 2.4GHz and 900MHz support. Featuring dual-band dual-channel Gemini architecture and four discrete antennas, it ensures robust, interference-free signal reception. With advanced Semtech LR1121 chips, 500Hz refresh rate, and pre-installed ExpressLRS v3.3.2 firmware, it’s optimized for extreme performance. Compact and lightweight, the DBR4 is ideal for high-demand RC setups and perfectly pairs with the RadioMaster Nomad module.

Features:

  1. Dual-channel Gemini design for independent 2.4GHz and 900MHz reception
  2. ExpressLRS protocol with Xrossband GemX support
  3. Maximum telemetry RF power of 2 x 100mW
  4. 4 discrete antennas ensure optimal layout flexibility
  5. Ultra-lightweight with compact footprint
  6. Advanced interference rejection and reliable connectivity
  7. Perfect match for RadioMaster Nomad modules
  8. ExpressLRS firmware v3.3.2 pre-installed for instant deployment

Package Includes:

1 x DBR4 Gemini Xrossband ExpressLRS Receiver

2 x 2.4GHz Wire Antennas

2 x 900MHz Wire Antennas

1 x CRSF Wire

4 x 4mm Red Vibration Dampeners

4 x 3mm Black Vibration Dampeners

1 x Manual Card

Setup Guide

1
Charge the vehicle battery
Connect the vehicle battery to the included charger. Charge fully (typically 1–2 hours) before first run. Never leave charging unattended.
2
Install batteries in the transmitter
Open the transmitter battery compartment and insert AA batteries as indicated by the polarity markings.
3
Power on in the correct order
Turn ON the transmitter FIRST, then the vehicle. This prevents unexpected runaway movement.
4
Trim and calibrate
If the vehicle pulls left or right at rest, use the steering trim knob on the transmitter to centre it.
5
Start slowly
Begin with half-throttle to get a feel for the controls. Gradually increase speed as you become familiar with the handling.