Hi all. I'm looking to build a yagi antenna for a very specific use. I have a wireless video sending unit that has PCB antennas and some small non shielded wires terminated on PCBs, which I believe to be antennas. I THINK I've isolated the exact antenna I need, and want to do the following
1) add a bulkhead, like SMA or TNC
2) add a yagi antenna
3) build a yagi antenna
I've come to the conclusion that I really need to make my own as those on ebay are garbage and not tuned for the 5ghz range. With that said, I have these questions
1) If I add a bulkhead, should I use shielded wires, and does it matter?
2) is there somewhere I can go on the internet, or if someone can tell me the formula or be REALLY nice and give me the dimensions to build my own?
3) Ive heard that you don't want your elements to be connected to a conductor, so using PVC or wood down the center is better - Is this true?
4) does someone have a better idea for what I'm trying to achieve?
I'm using a Brite View BV 2322 wireless HDMI and it goes 150ft with the external antennas I've added, but I need more distance, like 200+ feet - I'll answer this now - Why? Because we are a video production company and we need to send a signal to a monitoring station BUT we don't have the budget to buy all the real stuff, you know, $15k per unit. I'm sure I've asked some questions I could find with the search button, but I just want someone who can dial in what I'm looking for to know what I'm asking without having to wonder. I don't know if I read this correctly or not, but I heard something about horizontal and vertical waves - does this mean that i need to use two antennas 90 degrees relative to each other? I use two antennas now and I keep them 90 degrees relative, and honestly, it seems to make a difference by 50 feet. I don't know If I'm self implementing coloration and causation but again, it's all I THINK at this point.
Thank you in advance to anyone posting. ANY material you throw at me I'll read. I want to understand everything I can. Math is not my strongest point but I'll do my damnedest. I have mathematician friends so I can use them if needed.