Did you know that you can also use your smartphone as your FPV screen? This is possibly the cheapest option. You will need a couple of things - a USB video capture adapter and a USB on the go cable. You will also need an application that runs on your smartphone - EasyCap Viewer. It runs only on android and there's no iOS support.
You will need to visit the EasyCap viewer website and check whether your android phone is compatible with the software. If your phone is not compatible, there's really no way you can use your phone for FPV at the moment.
The setup is fairly simple - you take the video output and feed it to the USB video capture adapter. The software options are all self-explanatory and the setup is very simple. It's plug and play.
The video quality is fairly good and there's really no lag. And the screen does not go blue when it loses signal. You get static and the display returns as soon as the signal regains strength with very little lag time in between.
If you choose this, you can also record live video. All you would need to do is download a screen recording application from Google Play and record the screen.
If you already own a pair of FPV goggles, then you would not want to buy an FPV monitor if all you want to do is record live footage from your drone. Just use your smartphone as a DVR while you control the drone using your goggles - and save a bit of money in the process.
This is an awesome monitor/receiver combo for the Phantom 2. By putting a circular antenna to the right of the screen, you can expect better reception.
Dual receivers automatically select the antenna with the better signal. You could also use dual cameras on your drone. The SD Card DVR would have been nice. .
A digital video recorder will assist you in case you were to lose your drone.
While some say there is a flimsy feeling to the glare shield, it might not really be problematic, and you could easily glue it in place if that is an issue as well.
On the left would be the DJI mushroom shaped antenna, and on the right would be the Circular Wireless Helical Axial Mode 5.8 GHz FPV Antenna. Additionally, a matching DJI mushroom type antenna is provided with the FlySight 5.8GHz 32-Channel A/V Transmitter, 1.2 Watt transmitter.
It may be worthwhile to try replacing the DJI transmitter with the FlySight transmitter.
However, a more powerful transmitter will reduce flying time significantly.
The video sometimes breaks up at 800-850 meters.
The diversity receiver might be helpful to you. Using dual antennas and having the strongest receiver on board gives you more confidence when you use a directional antenna - like for instance the HELIAXIAL58.
You must aim the receiver straight at the transmitter's antenna. The angle in which the antenna is able to be mounted is about 15 degrees to each side.