The Crossfire Micro V1 was on sale at half price recently, some of us was right to guess they were preparing for the release of a new product – the Crossfire Micro TX V2 module. Let’s take a look at what’s new.
The TBS Crossfire Micro TX V2 allows you to use the 868MHz / 915MHz frequency for your control link. It’s an external module that you can install on many radios with an external module bay, such as the Radiomaster TX16S and Jumper T18.
At first glance it might look similar to the original version, but there are a few changes and improvements. New to Crossfire? See my setup guide.
Higher Output Power Potential
The V1 originally had a max output power of only 100mW, but that was later increased to 250mW in a firmware update.
It might be disappointing for some to learn that the Crossfire Micro TX V2 has the same maximum output power as the V1, currently set to 250mW.
However, according to Youtuber Livyu, the new V2 module actually has a new Skyworks RF amplifier IC, which is capable of 27dBm (500mW). So I wouldn’t be surprised if the max power will be increased to 500mW in a future firmware update for the new Crossfire Micro TX V2 module.
Update (Sep 2020): By updating the micro TX V2 module to firmware 4.0 or newer, you can use up to 1W (1000mW) of output power, which is double of what was thought possible
Further Reading: How to calculate range based on dB?
The antenna is no longer easily detachable. This is to comply with FCC rules (antenna should not be removable in the device).
However, the “integrated antenna” is simply just a cap over the SMA connector. If you remove the screws and plastic cap, underneath is a standard SMA connector and you can still remove it and use whatever antenna you prefer.
Not a biggie, but it’s nice to see them replaced the Micro USB Port with USB-C. Not sure why we still use Micro USB in flight controllers, it’s easy to break, and you have to carefully line up to insert it. USB-C solves all these problems.
The schematics of the PCB has been redesigned/improved. Hopefully we might get even more features from future firmware updates. According to Livyu, the V2 also has more filtering and higher tolerance to interference from neighbouring frequencies, results in better performance.