DJI FPV Antenna Test: TBS Triumph, Truerc Singularity, Albatross, Pagoda, Geprc Momoda - Round 1 скачать в хорошем качестве

DJI FPV Antenna Test: TBS Triumph, Truerc Singularity, Albatross, Pagoda, Geprc Momoda - Round 1

In this video I test the following antennas: Team blacksheep triumph pro SMA long range 1.6 db : https://www.team-blacksheep.com/produ... Realacc Pagoda antenna 5 db : https://www.banggood.com/Realacc-5_8G... Truerc singularity long SMA 2.2 db : https://www.truerc.ca/shop/5-8ghz-2/t... iFlight Albatross 150mm RP-SMA 3 db : https://shop.iflight-rc.com/index.php... Geprc Momoda long version 195mm mmcx 2.5 db : https://www.banggood.com/GEPRC-Momoda... All antennas were connected to a DJI FPV Air unit running at 25mw in 50mbit / high quality mode. On the goggles (see below) I used my high gain, low angle beam, directional antennas (2x prodrome helical 12t, 1x ZRC flat panel patch, 1x truerc sniper). All antennas (both on the Air Unit and goggles) were placed so that they were exactly in the same horizontal plane, thus being in the best possible receiving situation, radiation pattern wise. The momoda was connected directly to the air unit, all the others had a mmcx to sma cable adapter in between. The Albatross had a further rp-sma to sma straight adapter. For testing, I put my cheap ground station in one angle of my house, standing still, with all antennas pointing to the opposite angle of the house (lots of rooms and concrete in between) where I put the drone with the antennas to be tested. For each test, I simply changed the antennas without moving the drone, and record a couple minutes video with the goggles DVR. The bitrate shown in the final Ranking was calculated as the arithmetic mean of all the samples of each recording. As expected there were very few oscillations, considering that everything was still. Results 1) Tbs triumph pro – 26.5 mbit 2) TrueRC Singularity – 20.9 mbit 3) iFlight Albatross – 17.8 mbit 4) Geprc Momoda – 16.2 mbit 5) Realacc Pagoda – 13.4 mbit. Considerations: Don’t use the Db gain of an antenna as a performance indicator. The TBS, that clearly placed first, had the lowest db rating of the group, whilst the Pagodas (rated as the highest gain) placed last. The Albatross had an added rp-sma to sma adapter that should account for some signal loss, but nothing game changing. Nevertheless, I have ordered a mmcx to rp-sma adapter and I will use it in the next tests, in order to make things as fair as possible. The Albatross, sadly, is also the heaviest of the group, though. I don’t know how “scientific” this test is, one antenna could be better than another in LOS but worst in a “obstacles” situation like my test scenario, also keeping into account possible waves reflections. But I think that, in the end, those values are very close to “tell the truth” about the “global” antenna performance, and for long range in particular, which is my goal. I am making some tests “in the field” with the same antennas tested here, trying to fly in the same path and altitude and see the results, we’ll see if those tests will be in line with the results of this test. In the next round I will change "side" and test the antennas used in the receiver (dji goggles), th test will include the actual 4 antennas used in this test, plus the Truerc Volcan MK ii 20db (4 sniper in 1 !), VAS pepperbox extreme and VAS Helical 12 turns, it will be fun, stay tuned.