TBS Unify PRO 5G8 HV FPV VTx RF Power Testing (25 / 200 / 500 / 800mW 40CH FPV VTx) - RCTESTBEN.CH

The video transmitter:
Brand: TBS
Model: Unify PRO 5G8 HV
Type: VTx

? Let me know which FPV AiO combos or VTx boards you would like to see tested! ?

** Attention: As always, make sure you use frequencies that comply to your country's legislations. **

This is RCTESTBEN.CH: TBS Unify PRO 5G8 HV FPV VTx RF Power Testing (25 / 200 / 500 / 800mW 40CH FPV VTx) - Let's go!

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*If you like my content and want to support the channel, you can use the affiliate links below. I get a small kickback from the store if you decide to buy something and it costs nothing extra to you.
Thank you in advance!

For pricing and availability you can check the links below:
https://goo.gl/faAcXo (TeamBlackSheep)
https://goo.gl/9gL76r (Ebay affiliate link)
https://goo.gl/dj9yr3 (ProgressiveRC)
https://goo.gl/5rk8Eg (Amain Hobbies)

Stack mounting board:
https://goo.gl/fZv99P (WhiteNoiseFPV)
https://goo.gl/TfuokC (Ebay affiliate link)

Product manual:
https://goo.gl/zhq2A7 (TeamBlackSheep)


Quick Guide on how to unlock and set up the TBS UNIFY PRO 5G8 HV, using the built-in button and status LEDs:
   • How to unlock and set up TBS UNIFY PRO 5G8...  


The test rig:
The RCTestBen.ch test rig for VTx RF Power Output is a DIY setup.
The RF Power Meter is made by ExpertRC and you can find it here: https://goo.gl/lfhgqd (Ebay)
(the RF Power Meter is produced in small batches - check back if it is currently not available)
Another similar device seems to be this one: https://goo.gl/wKmGua (Banggood)
The case is 3D printed, you can find the design here: https://goo.gl/34pk3M (Thingiverse)

Just to be clear: These tests are far from scientific BUT the main goal here is consistency and repeatability, so that you can compare the results between all the hardware tested. These tests focus in the transmitted power per channel/band. Channels, Bands and Frequencies are displayed according to manufacturer's spec sheets.

The measuring equipment used has been tried and tested repeatedly before starting out this RCTestBen.ch series.
The hardware that is tested is brand new and unused, in stock condition. Only 1 unit is tested and presented in this video. To my knowledge, this is not a cherry-picked product and certainly not a "best-of" measurements video. This is how the product performed right out of the box.

The tested hardware (FPV AiO / VTx) is powered from a regulated DC source. You can watch the voltage and current draw throughout the test.
The most prominent min and max values are logged on each channel of each band / power output. If you see a different value on the RF Power Meter in a still capture, it just happened to show up briefly when the photo was taken. Same applies for power consumption. It is monitored throughout the whole duration of the test and the most prominent min and max values on each channel are logged.

The FPV AiO camera/VTx combos are tested by de-soldering the stock antenna and soldering a coax cable in its place, which is connected on the other side to the RF Power Meter. There are plenty of the exact same conductor with the exact same length from the same batch, as spares. VTx boards with u.FL (IPEX) connector are tested via a u.FL to SMA thin coaxial cable. VTx boards with SMA or RP-SMA connector are tested via an SMA to SMA cable plus an adapter for RP-SMA. All these cables and adapters are available as spares (the exact same types, from the same batch).

Cooling plays a huge factor in the RF power output of VTx boards. Leaving a VTx running for a short period of time in room temperature results in a quick drop of power output - even by blowing with your mouth results in a quick rise in power output. All FPV AiO and VTx boards are tested with a constant airflow over both sides of the VTx PCB board. Testing is done slowly and may take up to 35 minutes, depending on the amount of bands/channels available on the tested VTx board - after all the channels are cycled through, settled, measured and logged, the first channels are re-checked in order to confirm accuracy, consistency and stability of the transmitted power.


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This video features the song "Moldy Lotion" by Light-foot, available under a Creative Commons License
Song link:   / moldy-lotion  
Artist link:   / light-foot  
CC-by license: https://creativecommons.org/licenses/...



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