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Wi-fi video methods all have one factor in widespread: antennas. Whether or not it’s a single one or an array of antennas, these gadgets are used to transmit and obtain radio waves. So how do you select the best antenna in your system to get the very best out of it? Teradek tackles this query in one in every of their how-to articles, which is sort of attention-grabbing to learn, even in case you are utilizing different manufacturers of wi-fi video methods.Nicely, I’ve personally grow to be responsible of arranging the antennas of video transmitters with a number of antennas sitting on high of my digicam in a method that in all probability compromised video transmission high quality and vary: I aligned some antennas at a 45º angle and left the remainder straight.It felt… proper. Nevertheless it’s not, as Teradek explains on this Optimize Your Wi-fi Video System video. Test it out beneath! The accompanying weblog submit will be discovered on their web site right here.Though that is clearly a Teradek video that includes Teradek merchandise, the underlying ideas apply to different makes and fashions as effectively, so I feel it’s value watching even when you use fully completely different wi-fi video methods. optimize wi-fi videoFirst, it is very important perceive and distinguish between the 2 fundamental varieties of antennas obtainable to you: V antennas and H antennas. Whereas V antennas (as in Vertical) use a vertical electrical discipline, H antennas (as in Horizontal) use a horizontal electrical discipline to distribute a wi-fi radio sign.Totally different electrical fields. picture credit score: TeradekSo far, so easy, however how do you resolve which variant to decide on? Nicely, principally you’ve gotten two modes at your disposal: V mode, which after all makes use of solely V antennas, or V+H mode, which makes use of H antennas on the outer ports, whereas V antennas fill the gaps in between.V- and H-Antennas. Picture credit score: TeradekV mode is effectively fitted to long-range, direct line-of-sight connections, whereas V+H mode is healthier fitted to a extra obstructed view that requires a extra sturdy sign that may reduce by way of interference and objects alongside the best way.Antenna alignmentAnd, in reference to my preliminary assertion above, it’s best follow positioning the transmitter and receiver antennas perpendicular to the bottom, not at an angle like I did. That’s what the hinges on the antennas are literally for, so don’t attempt to create a flowery however counterproductive sample right here. Simply level all of the antennas straight up and be performed with it.Don’t align antennas like this! Picture credit score: TeradekIf you want a fair stronger sign for very lengthy distances or difficult environments, Teradek has an answer with the Antenna Array for Bolt 4K, however that’s one other matter for an additional day.ConclusionUsing essentially the most applicable antennas for the job and positioning them appropriately will enormously have an effect on the standard of the transmission. Due to this fact, observe these pointers when utilizing a wi-fi video system within the discipline, whether or not it’s a Teradek product or some other.picture credit score: TeradekSince that is “fundamental” information for radio engineers, these ideas apply to nearly all makes and fashions. Positive, generally you may’t even swap antennas as a result of they’re constructed into the gadget in query, however you probably have a alternative, select properly!Hyperlink to Teradek weblog postWhat do you suppose? Have you ever additionally misaligned your antennas up to now? Share your experiences within the feedback beneath!
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