RFDesign 900MHz 2dBi Monopole

Look at you, deep in the 900MHz rabbit hole. Whether you are building a long-range UAV or just trying to send telemetry to a ground station three counties away, this RFDesign 1/4 wave monopole is the 'no-frills, all-thrills' choice for makers who prioritize weight over flashy plastic casings. It’s sleek, it’s tiny, and it’s surprisingly good at its job—much like a well-trained ferret.

Why You Want It

This antenna is the minimalist's dream. At a mere 10 grams, it’s roughly the weight of three grapes or the amount of patience you have left after your third 'failsafe' of the afternoon. It is purpose-built for airborne FPV applications where every milligram is a mortal enemy. Just a heads-up for the skimmers: it’s a monopole. It needs a ground plane to perform. If you mount this to a piece of wood and wonder why your signal is trash, that’s on you. We're breaking the fourth wall here to save your hardware: mount it to something conductive or provide a counterpoise.

Specs

• Frequency range: 902-928MHz
• Gain: 2.1dBi
• VSWR: < 1.5
• Impedance: 50R
• Polarization: Vertical
• Weight: 10g
• Size: 51mm long, 8mm diameter
  

In the Box

• 1x RFDesign 900MHz 1/4 Wave Monopole Antenna (RPSMA)

Compatibility

Works flawlessly with any 900MHz/868MHz radio systems utilizing an RPSMA connector. Perfectly suited for RFD900 series modems, TBS Crossfire (if you have the right adapter), or FrSky R9 setups that haven't been retired yet.

Highlights

• Featherweight Champion: 10g of pure RF goodness that won't upset your CG.
• Small Form Factor: 51mm means it won't get snagged on every passing tree branch.
• RFDesign Quality: Built by people who actually understand radio waves, not just people who like the color orange.

Notes

Requires a ground plane for optimal VSWR and gain. Carbon fiber frames can act as a ground plane, but your mileage may vary depending on how much resin is in that weave. Test your range before you send it into the stratosphere.

Disclaimer

Range is subjective. If you fly behind a lead-lined bunker, don't come crying to us. Keep your LOS clear.

Still Here?

You’re either a bot, a very thorough researcher, or someone who really enjoys our writing style. Either way, stop reading and start flying. Your long-range telemetry isn't going to fix itself. #900MHz #FPVLife #LongRangeDrone #RFDesign #UAVAntenna