Will my high gain omni antenna overshoot the nearby Helium Miners 

Thank you. Channels like yours are gold in 2021 where a bunch of noisy guys spread craps without knowing what they talking about. Happy that I finally found a guys that is not so noisy but know what he is talking about.

Even I understood that and I am a neophyte to the subject. Wonderfully simple and concise explanations. Thank you.

Seriously good expert content here and all over the channel! Thank you!

As an Ham Radio operator, I Totally agree with you. All these other RU-vid channels talk about "over shooting" and I'm like 🤦‍♂️

Thanks so much for this. People took a not to scale picture from Helium and regurgitated it over and over. I’ve always said, if they were so close to overshoot, they were to close to be valid!

wow nice math, first person i found that explains the distances thank you

almost I heard " vyf punt agt " nice video and very explanatory.

I love the math based logic thanks. I think the real concern from a Helium point of view, is not about whether you can see another hotspot further away, but if you can provide the infrastructure for IoT, hence the lower gain provides better coverage in your spot in the future when there's many more hotspots.

Totally agree, there is so much rubbish in helium videos it makes me angry and am writing vid myself. Those people do not have the benefits of a masters degree in radio engineering and 25yrs of engineering experience, yet they are popular due to people watching knowing even less, therefore vids appear knowledgeable. No other vids I've seen mention electrical tilt, 3db beamwidth, impedance matching, cable quality (incl bend radius). So thanks for this vid, it IS important to question others

Thank you for taking the time to explain this. You have definitely helped me comprehend things better.

Love your vids! Really good and simple explanations. 100% agreed from my side! Would be great to see a vid belonging surge/lightning protection and their signal losses including losses of N-Type connectors. Regards from Austria (Europe) to Australia! Helmut

Hi, I really appreciate your video content. I started mining Helium with a Bobcat Miner with the OEM antenna (4 dbi) in a window on the 3rd floor (20m) office building. I live in the US, in a very flat, low building height, very populated city and the gain was set to 4 Dbi. I was averaging about 0.30 HNT per day and achieve a personal best of 0.44 HNT superbowl Sunday (Feb 14). That Sunday evening an hour before the new UTC day I installed a new 8 dbi antenna (Bingfu) on a magnetic base (Bingfu) that has a 10ft RG58 cable. I set the gain in the Helium app to 8 Dbi and I didn't adjust for the attenuation. I noticed a significant drop in activity over the course of the next 5 hours so I changed the gain to adjust for the attenuation to 6.2 dbi. The first full day UTC day using the new antenna setup and the combination of gains, yielded my worse performance to date of 0.21 HNT. Any ideas about what's gone wrong. I'm going to let the current setup 8 dbi antenna with 6.2 gain ride for another couple of days but I'm thinking the Bobcat antenna (4dbi) setup might be the better choice. Although, according to every source, my 8 dbi setup should have increased my witnessnessing significantly. PLEASE HELP! Should have I corrected the gain settings for the cable attenuation? Does is take time for the helium network to readjust changes to antenna setups (physical or settings)? Any other recommendations for evaluating the physical or software setup? Can you please make a video on attenuation adjustments, how the attenuation and gain correction affect the RF beam? Thank you

Keep it simple, Keep it real. I luv ur videos. Thanks mann.

Exactly what I was looking for 👌👍 great information

Thank you, great advice! I had the same concern with a high gain dbi antenna bec. I live up in the 8th floor. Upgraded my 4dbi stock to 9dbi tuned antenna. Basically gave me a ~4x. This channel deserves more subs!

Great video, congratulations!

Hey. I must say these videos are really great. I think this is my first RU-vid comment ever. :) I like the simplicity of the presentation with scientific background. And laughter of your (i guess) coworkers just add to the entertainment. :) My situation is: HNT miner, Location EU. I currently use stock 4 dbi antenna outside at 10 m above the ground. I live in the suburbs and most of the miners are cca 15km away in the line of sight (flat ground, no buildings). I currently reach miners as far as 12 km away. I have prepared 5.8 dBi antenna. After POC V11 the power of the miner will be reduced (if i continue to use 5.8 dbi). Is it still good idea to replace antenna with 5.8 dBi? Since the horizontal range will be much shorter after dBm reduction. With reduced transmition will the updated antenna still improve my receving capabilites? Is it good idea to use tuned antenna (at 868 mHz)? Maybe you could do a video on tuned antennas and how low/high dBm affects high/low dBi antennas? More research I do the more I`m confused. Thank you and stay educational.

Love your content. Thank you so much for the clear coated information.

Great video and explanation

bro ur awesome. thanks so much for making this so simple. it absolutely makes sense. i'd be curious what you think of 9dbi panel antennas. I'm at the other end of town and I'd shoot it down a narrow valley where the city is nestled. cheers mate

Thanks for the great info! Question: with an 8dbi rated antenna that has a cable loss of, say 2.2, does the vertical radiation angle change to 50 degrees like a 5.8dbi antenna now?

Good explanation on overshooting but it's missing a very important factor: terrain! So if you are on top of a hill you can overshoot people a lot more easily so the terrain around you needs to be kept into consideration. Also 9dBi McGill antenna has a 12 degrees vertical angle so a lot more narrow beam...

Love your videos, keep up the good work! I have a question about an attic install (I can't get it on the roof, so this is my best alternative). I have put a 8dBi antenna in the attic with my helium miner. For the sake of argument and simple math, let's say there's 2 dBi loss because of the roof. Does the 8 dBi antenna now act similarly to the beamwidth pattern of a 6 dBi antenna, or it is just a weakened 8 dBi pattern? I don't know if this makes sense or not, but I'm trying to learn! Thanks again for your informative vids.

Another brilliant video, awesome, thank you!! Silly question, if max dBm in Aus is 30dBm, and max these units can pump out is generally is 27dBm from the specs. Why dont we have 20dbm antennas to maximize the allowed dBm's??. Even as you say fort receive purposes and the network will cap the transmit dBm to 8 dBm. Separate question, if i purchase for example a Bobcat 300, its boasts a 4dBm antenna, id doesnt really matter im going to replace it with a 9 or 11 dBm as i haven't seen any larger dBm antennas available, back to question1).

That was great - thanks!

Great video. My question is how far from the antenna is the 50 degrees measured? What formula or calculation do you arrive at the distance the signal hits the ground? Of course this is level ground it will change for inclines either up or down. How can you calculate the distance the RF hits the ground in these situations? It will be really helpful to know these things when choosing a location for a miner. Awaiting a reply. Thanks

Hello, this video has been a revelation for me. The antenna guy who installed my antenna, put it not perfectly vertical. It has a roughly 15° angle on vertical axis. Maybe it's for that the performance are not as expected. Thank you very much

I live in Florida, USA in a 1 story home. The highest I can mount the antenna is where the electricity comes into the house, which is ~5 meters (~16 ft high). I have the Bobcat miner 300 and live in a typical housing subdivision, where there are single family homes. What is the best antenna, within reason, that I can buy to mount on the top of my roof? And, are there any reliable companies that provide the antenna, cable and mounting hardware that you might recommend?

Great video. Would you be able to advise me on my antenna location? I had been planning on mounting the antenna at the top of my home (10metres) next to a brick chimney stack (with the antenna above the stack). This is in the north east of the UK. I am situated on top of a hill at least 106m high elevation and the majority of the other helium hotspots are located below my elevation (downhill to the east) at elevations of around 70m down to 40m spread over 10 miles length. With a difference of around 120m to 40m would you recommend sending and recieving using a 8dbi antenna with this topography and gradient? I had thought that there could be some potential to overshoot due to the narrower angle before I had watched this video. I have seen a low dbi (2.8) antenna with some good results in this area (attached to a building overlooking a field facing east to the lower gradient) and a 5.8dbi Omni with also decent results (less than the 2.8dbi). What are your thoughts? Thank you for the great Helium content.

Can you please tell me which antenna I can use for the Kerlink Wirnet iFemtoCell Miner - 868 MhZ & 915 MhZ

I have a 8dbi antenna in Florida, pretty flat area but a large cluster of hotspots are about 10 miles away which I wasn't reaching. I went with a 12dbi antenna and I'm hitting the same hotspots,nothing new. I have clear line of sight to those 10 miles away. Any recommendations? I am 8 meters up with no 2 story homes blocking me, possibility a few tree.

i have upgraded my stock bobcat 4dbi antenna to a 5.8 dbo antenna. I had the Problem that now half of my witnesses are invalid because of RSSI to high. Which just means my signal seems to strong for the distance to the beaconing hotspot. Yes, i have updated my antenna informations. So in may case, i will go back to a low dbi antenna.

You forgot to mention side-lobes of the radiation pattern.

Question I have a 10 dbi antenna. The cable loss is going be 1.1 dbi per 10ft. Does this mean the 10 dbi antenna will act diffrently like an 8.9? or should I tell my Miner I have a 11.1dbi antenna so its pushing for the loss and makes it up?

Explanation of advantages of ground planes and how to include them in antenna setups

Thank u, great content from u. But my question is how I target the users as u mentioned,

I have also understood that a high gain antenna will spoil the game if there are obstructions in line of sight because the degree of spread is less that might get completely blocked. My target area is exactly 5.24 km should I get an 8 dbi or 7 dbi considering above fact my area is suburb target is city ?

silly question but is it worth me putting my antenna in the attic with no windows or by a window a floor below? thanks

Is there much of a difference between the 8dbi you show in the video and the 9dbi McGill you sell? There’s a lot of talk in the Helium community about McGill antennas but there is a fair difference in price.

Hello. When should we expect video review about HNtenna?

Should I upgrade from my 6dbi to an 8dbi?

Do you guys ship to the United States?

I know people are having success in attics... I have my stock 2.6 senscap talking to people 32km away in a three story building attic but I'm not getting their signals back well they can see me but I don't witness them. Question is: Will my 5.8 do just as well in the attic or should I focus on getting to the roof? Plans are to try both but the way the building is it's gonna be tough to route a cable up there

Great information again. I can agree, my 8dbi antenna does great in suburb type area (no high buildings, houses about 5-10 meters high everywhere). Not overshooting people in the hexes next to me, but I am also reaching those further away, some 5-10km. I have a question about antenna mounted height; I am currently mounted at 8m and wondering if I should increase to 10m or if this would be negligible? Is there a recommended height above average house height that I should be aiming to be at? Tree line might also be taken into account, we have some very tall trees around. Thanks

What your thoughts about HNtenna 3dbi? I leave in a city. I am using now 5.8bdi rak

i have 5.8dbi antenna and the miner 2.3klm away has the same antenna 5.8dbi and we invalid witness each other, rssi below lower bound, so to me that is the signal is to strong, so how to fix that , we are both at about 10m in height, and no hills in between us

What's your thoughts on the hntantenna from mp antenna?

Do you have 12dbi antenna in RFShop?

is there an easy way to calculate the overshoot of your antenna?

Btw, My recollection is that the higher the gain, the lower takeoff. So for 6db and more, we are talking maybe 7-10°

How far do helium signal travel ?? Beacuse i can se sometimes crazy distance connection betwen two miners and i dont think either of them is using that high gain antena.

what would be the Dbi loss on an LMR 400 cable 8 metres long ?

Install as many hi gain directiinals that offer up 360 coverage

You sound South African

"Miners can't be closer than 300mts" => totally incorrect. That's a recommended distance and that's it. Lots of miners are closer than 300mts and even lots of people with two miner on the same antenna.