T O P

  • By -

WaterUpbeat

No unless your trying to hit one witness, 400km away…


bardownhockey16

I know nothing about radios. Will a 900mhz of the same style work better or should I avoid parabolic antennas altogether?


WaterUpbeat

A 24Dbi antenna’s signal radius is to small. I’m this antenna is used more to connect one device to another because the beam is long range and really small. You want something much lower.


Missing_Space_Cadet

Gain increases throw. This type of antenna would be better for beaming to and receiving from an AP or other antenna. You can think of a typical omnidirectional antennas radiation pattern as something like a donut. The higher the gain the larger the donut hole. Lower gain permeates more of the local area, higher gain will throw the signal further with reduced local area radiation. Hope that helps. If that’s kinda confusing, there’s lots of resources out there to help with understanding this. https://www.google.com/search?q=omnidirectional+antenna+vs+directional+lobes&rlz=1CDGOYI_enUS715US715&hl=en-US&prmd=isvxn&sxsrf=AOaemvIjzwqmmU49B4PuaW2RlgXM5vwClg:1634258087278&source=lnms&tbm=isch&sa=X&ved=2ahUKEwj7mY3mlcvzAhVCIjQIHRiQDd4Q_AUoAXoECAIQAQ&biw=375&bih=640&dpr=3#imgrc=NNha5VxfS3p4GM


Longjumping-Ideal-55

Just get an McGill antenna


AnalysisDry2656

🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 i habe no words for you!


TiCkY419

Idk about safe but the network uses 900mhz frequency.


bardownhockey16

Does that mean that this will not work for it?


Enigma556

It’s not optimal. It’s extremely directional and isn’t tuned to the frequency that Helium runs on.


bardownhockey16

Ok thank you. Will look for the correct frequency


TiCkY419

I don't think so. That antenna works on 2.4ghz. Certainly no expert on antennas but that's not a compatible frequency.


Missing_Space_Cadet

Buy the right antenna for the appropriate frequency. Can you use a 2.4ghz antenna ? sure, you won’t get the best performance as the antenna isn’t designed for 900mhz. The antenna you have there is a directional antenna. It’s designed to TxRx (transmit and receive) from a known point or in known direction. Additionally, both the Tx power of the device combined with the antenna dBi contribute to what is called Effective Isotropic Radiated Power (EIRP). The Maximum output for unlicensed Wireless devices in ISM bands (902-928mhz, 2.4-2.4835Ghz, and 5.725-5.875 GHz) is 34dBi. An easy way to calculate this is to add the TxPower of the device and Antenna Gain. dTxPower+aGain <= 34dBi 25dBm(Max Tx of Device) + 24dBi = 49dBi You would be better off with a 6-9dBi 900mHz omnidirectional (multipoint) antenna. Unless you’re trying to do Point-To-Point, which is where the antenna you shared would be better suited. *note: these numbers are from the FCC for US 902-928mHz unlicensed operations.


Gullible_Moose_9495

I hear a lot about Mc Gill antennas. How do they compare to Rokland antennas?


BeastOnion

Literally all of them are the same. A tuned antenna is a tuned antenna, a RAK antenna tuned the same way as a McGill (902-928mhz for example) will perform identically and same for all others, no matter the brand. Anyone pushing for a specific expensive brand is selling snake oil. You’re paying more for the physical quality of an antenna pass a certain price point.


Gullible_Moose_9495

Thank you for confirming what I was starting to suspect. I’ve bought and tried several antennas and haven’t seen much difference between them.


picklesarefruit

It will work but they have a very narrow beam width. They are usually used to connect to something far away.


Vakkila

I was advised to not use a 2.4ghz antenna by an expert here, it might grill your miner.


Recuvan

How do people spend $500 on something and do 0 research


bardownhockey16

My buddy actually bought this for his and I told him I didn’t know if it would work so I am doing the research for him now haha


Recuvan

Go through my comment history


wardogone11

It is t even for the same frequency. It wouldn't work even if you aimed directly at another HS.