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Description
RadioMaster DBR4 Dual-Band Xross Gemini ExpressLRS ReceiverIntroducing the DBR4 Receiverthe ideal match for the RadioMaster Nomad. This advanced dual band, dual channel Gemini receiver ensures seamless compatibility with the Nomad module. With its ability to simultaneously receive 2. 4GHz and 900MHz signals, the DBR4 offers exceptional interference rejection and reliable signal integrity. Trust the DBR4 for robust performance and explore new horizons with confidence. VIDEO: RadioMaster Nomad ExpressLRS Module
Introducing the DBR4 Receiver—the ideal match for the RadioMaster Nomad. This advanced dual-band, dual-channel Gemini receiver ensures seamless compatibility with the Nomad module. With its ability to simultaneously receive 2.4GHz and 900MHz signals, the DBR4 offers exceptional interference rejection and reliable signal integrity. Trust the DBR4 for robust performance and explore new horizons with confidence.
VIDEO: RadioMaster Nomad ExpressLRS Module – Next-Level Dual-Band Performance!
Features
- Supports ExpressLRS Gemini 868/900MHz
- Supports ExpressLRS Gemini 2.4GHz
- 2x 100mw Telemetry RF Power
- Gemini Xrossband Technology
- Advanced Cooling System
- 20x20 Mounting Holes
- 4 Discrete Antennas
- Compatibility
INTRODUCTION OF K MODES
K1000 Full SubGHz (Coming in ExpressLRS V3.5)
- Yes, you read that right—1000Hz in the 868/900MHz domain! While this mode is designed for maximum data throughput when used with MAVLink, don't let the 1000Hz fool you; during development, it was tested for long-range performance.
DK500 (Coming in ExpressLRS V3.5)
- Designed specifically from the ground up for speed enthusiasts and RC reliability. K modes are next-generation FSK modulation with built-in packet repair (Forward Error Correction). Similar to FLRC D500, DK500 sends repeat packets to minimize packet loss in challenging race environments. Paired with a Gemini-enabled Tx and Rx, nothing compares to its RC reliability.
NEW PACKET RATES
Sub-GHz 200Hz Full (-111dBm)
- Optimized for MAVLink: Double the packet rate of current 900MHz SX1276 hardware, tailored specifically for MAVLink users to provide a more robust link and reduced interference.
Dual Band X100Hz Full (-112dBm)
- Enhanced Gemini Mode: Enjoy dual-frequency transmission with a 100Hz packet rate and full 16-channel resolution, ensuring strong and stable connectivity even in challenging environments.
Dual Band X150Hz (-112dBm)
- Gemini Mode: Experience simultaneous sub-GHz and 2.4GHz transmissions, offering robust performance and reduced interference with a packet rate of 150Hz.
Sub-GHz 250Hz (-111dBm)
- Speed Boost: Achieve faster packet rates with enhanced sub-GHz performance.
Specifications
- Maximum Receive Refresh Rate: 500Hz (1000Hz coming soon in ExpressLRS V3.4)
- Frequency Range: 2.404 - 2.479 GHz / 903.5 - 926.9 MHz
- Weight: 2.70g (without antennas) / 5.30g (with antennas)
- Item: DBR4 Gemini Xrossband ExpressLRS Receiver
- Firmware Version: ExpressLRS v3.3.2 pre-installed
- Antenna: 2 × 2.4GHz Wires & 2 × 900MHz Wires
- Minimum Receiver Refresh Rate: 50Hz
- Telemetry RF Power: Max 100mW
- Working Voltage: DC 4.5 - 8.4V
- Dimensions: 27.20 × 27.20 mm
- RF Chip: Semtech LR1121 × 2
- Type: ISM_2.4, FCC_915
- Bus Interface: CRSF
- MCU: ESP32
Includes
- 1x RadioMaster DBR4 Dual-Band Xross Gemini ExpressLRS Receiver
- 4x 3mm Black Vibration Dampeners
- 4x 4mm Red Vibration Dampeners
- 1x Manual Card
- 1x CRSF Wire
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2019
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2018
★★★★★ 5
Great quality, no holes or fading!
Size: Medium, Color: Black/Assorted
I purchased these socks a couple years ago and love them so much that I just recently purchased them again! They fit perfectly, don't make my feet sweaty, and hit the ankle at the right spot. The material is so good that over years they have not faded and even though I wear the same few pairs every day, they have no signs of thinning or holes! These are the ONLY socks that I buy. I have the black ones as well as the multi-colored ones. I will never buy another brand or style again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2020
★★★★★ 5
Cute under armor socks
Size: Medium, Color: Black/Assorted
There's no show under armour socks.Are perfect for anybody who likes thinner socks. I loved them, I love the design the colors and the comfort and fit. Hylie recommend to those of you who like thinner socks.
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Reviewed in the United States on October 22, 2024
★★★★★ 4
Well made and perform well, a little constricting
Size: Medium, Color: Black Assortment (6-pairs)
These socks definitely keep most of the moisture away from my feet, even in wet conditions, which is why I bought them. I am diabetic, though, and the recommendation is to wear socks that don't constrict at any point. These have a tight band around the opening that while it is not uncomfortable on, leaves a mark when I take them off. So far it's been ok, but if you have any kind of swelling in your feet or ankles these would probably not be the best. My foot measures size 8 and I wear size 9 Brooks running shoes. The socks fit me just right but based on the size of the opening and the overall length, I wouldn't think they would fit anyone more than a size larger. Overall well made and perform well as you would expect from this brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2018
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