Power Meter V2

Immersion RC’s Power Meter V2

The time arrived for a new article. The ImmersionRC’s Power Meter V2 has been on people’s radar for a while now, announced around December 2017 and shipped in March 2018. We have them now in stock at NGhobbies, and you can order them by clicking on the image below. Powermeter V2

Looking back at the first version of the power meter, which was a bit bulky and required an external power source, the second version is definitely slimmer and smaller, includes a battery as well which makes it very nice portable design. Almost to the point where you would be afraid that if you put it down you’ll not find it again on the mess on your workbench 🙂

All that said, if is definitely a huge improvement to the previous design not only for the looks but for the functionality as well. In today’s most organized races the race director usually checks every racing quad before it allows them on the flight line to make sure they all comply with the power requirements of the race. If it is a 25mW race, then all quads should read under 25-30mW power output, or if it is a 200mW race, then all participants racing machines should provide a power output less than 200, but also more than 150mW.  This tool helps pilots and race directors to achieve equal terms when racing, no one would have the advantage of higher power output compared to others – also assuring that no higher output can wide out the video signal for any of the other racers.

In lack of the manual – which at the time of this writing has not yet been released by Immersion, we will try to quickly present you the 3 operating modes of the Power Meter V2:

  • Measuring mode: In this mode – once it is calibrated to a reference signal – you can precisely measure the power output of a transmitter in “dbm” or “mW”. If no output is detected, the display shows uW values which translate to “”micro Watts”. As you can see the frequency is shown in the bottom left corner, the frequency can be changed from the menu by pushing the 4 way button in. Available frequencies are: 35, 72, 433, 868, 900, 1200, 2400, 5600, 5650, 5700, 5750, 5800, 5850, 5900, 5950, 6000Mhz. You will jsut need to select the frequency you are transmitting closest to, no need for exact frequency selection.  The top left displays the battery charge level, the top right indicates id the power meter is in “peak” or “average” measuring mode – also adjustable from the built in menu. The bar graph on the bottom indicates the signal level as well expressed in percentage.
  • Packet Analyzer Mode: In this mode your power meter looks packets of data, PWM signal or similar on the selected frequencies. If you move this close to a remote control transmitter or a WiFi router, then you can see the packet data flowing on the screen. Pushing the 4 way button up/down will change the span value, meaning it will take more or less readings per second.
  • Scully Mode: This is the race director mode which will allow a race director to do a “Pass”/”Fail” test of the racing quads. This mode will show if any of the quads are above or below the desired signal level. In this mode when the Power Meter is calibrated to a specific signal level, it will compare the incoming signal to that stored level. With that, if your transmitter is under the middle bar, then you are not overpowered and you can fly – just like in the picture below, if it is above the line you are above the power level allowed for that specific race.

In either mode this device will need a little work to be able to measure precisely. We prepared a video for you to watch on how to do that, see it below:

Joe Scully spent some time preparing a video on how to use the same RF Power Meter in Race Director mode, please watch it below:

I hope you will find these instructions useful when using the RF Power Meter V2 from Immersion RC.