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The RadioMaster RP series receivers are built-in a TCXO (temperature-compensated crystal oscillator) now, which ensures reliable, stable, and accurate signal reception, allowing for superior performance in demanding environments and enhancing the flight experience.
The RP1 and RP2 2.4GHz ELRS nano series receivers are open-source receivers based on ExpressLRS.
The Nano receivers, first developed by Jye Smith from the ExpressLRS development team, feature ESP8285 MCU and SX1280 RF chip. The RP1 has a UFL antenna socket for full-range antenna use. The RP2 has a built-in ceramic antenna which is super light and small in size and ideal for racing.
The RP1 and RP2 feature WIFI built in so you can upgrade firmware by WIFI and configure the Receiver via the built-in WebUI with your PC or mobile phone.
Due to the low-latency and high-refresh-rate RF module, the RP1 and RP2 are ideal for FPV races or Long Range. Suitable for Whoops, drones, and fixed-wing models due to the ultra-light and Nano size, these receivers can fit just about anywhere!
Check out all our ExpressLRS Products, Receivers, and the rest of our RadioMaster Products!

TCXO (temperature compensated crystal oscillator)
The TCXO ensures high stability and accuracy in frequency control, compensating for temperature variations. This results in consistent and reliable signal reception, even in extreme temperature conditions. It also reduces frequency drift over time, providing long-term frequency stability and preventing signal degradation. Click to learn more about the TCXO.



Checkout the official ExpressLRS website: https://www.expresslrs.org
Official ExpressLRS Quick Start: https://www.expresslrs.org/2.0/quick-start/getting-started/
Remember this is an Open Source Project and therefore free to use for everyone. If you want to support the Developers, please consider donating: https://opencollective.com/expresslrs
Overall rating: 4.891892 / 5 from 37 reviews.
Review topics: ["quality","setup","build","works","issues","receiver","range","antenna","form factor","pads"].
"Awesome works perfectly"
"Still stronger than any video link I have used."
"This is a great super small and light reciever. Has great range"
"RM rx’s are probably the best imo"
"I own probably 15 of these and never had an issue. Range for my type of flying is great, small form factor to fit in any build and quality is great. Never had one quit working for me."
"Good reciever."
"No issues. Seems to have a bit less range than the RP1 but not a factor for my flying and worth it for the ease of installation"
"All you need to Rip your quad"
"simple setup, quality build. around 2km range, cant ask fro more out of a receiver this cheap."
"Link outperforms my rush tiny tank, haven't done range testing but no issues flying my toothpicks."
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