This listing is for a lot of 2 2.4GHz quarter-wave/whisker antennas with IPEX (the standard size one) connector made with thin lightweight coax. The exposed end of these antennas is already trimmed to the approximately correct length for optimal 2.4GHz operation.

Should work for Frsky X6B and possibly others.

!PLEASE! LOOK/OPEN YOUR RECEIVER AND VERIFY THIS ANTENNA HAS THE RIGHT PLUG FOR YOU! THERE IS NO WAY TO TELL FROM THE OUTSIDE - YOU'LL HAVE TO OPEN  IT ANYHOW TO REPLACE THE ANTENNA SO DO IT NOW AND GET THE RIGHT ANTENNA TYPE

AND MAKE POSITIVE YOU HAVE A 2.4GHz RECEIVER AND NOT SOME COMPLETELY DIFFERENT FREQUENCY OR THIS WON'T WORK WELL AT ALL!!

It is very easy to confuse IPEX v4 and regular IPEX (this antenna). They are visually similar; big difference is size. Please look at last photo showing scale of both against a penny.  This listing is for regular IPEX, if need the IPEX v4 antenna that's in my other listing: https://www.ebay.com/itm/293504575677

148mm total length

115mm shielded length

33mm exposed length

Frequency:2400-2500 MHz
S.W.R: Less than or equal to 1.5
Antenna Gain:1.5DBi (*Typical*)
Working Temp:-40~80℃
Humidity:95%~100% RH
Radiation Pattern: Omni-Directional
Connector: Ipex standard
Radiator Material:Cu