Frequently Asked Questions What is Antenna Gain?Īntennas, especially those under consideration in this post, are passive devices. If you live in an apartment building, we recommend the Signalplus 5.8 dBi antenna, This antenna presents a good balance. The Best Helium Antenna for an Apartment Building However, if the basement is the only location you can place your miner, then the stock 2 dBi antenna that ships with your hotspot might actually work best. It won’t be very effective in the basement or lower floors of your house. The best placement is in your attic or better yet mount it on the roof. If you live in a house in a suburban community, surrounded by other homes, the best antenna for this situation is the Embedded Works 8 dBi antenna. So let’s take a look at the best antennas for each of these locations. In fact, most people will only be able to place a hotspot in their homes or apartments. But that is also likely not going to be possible. So for instance, if you were able to place your hotspot on the roof of the World Trade Center that would be ideal. Ideally you want to place the antenna at the highest vertical point possible. Which antenna will work best for you? This primarily depends on the location where you are able to place the antenna. However it’s difficult to find an antenna that covers 470 MHz, 869 MHz and the 915 MHz bands and does a good job at operating in all these bands. Many antennas cover both the 869 and 915 MHz band. So depending on where your hotspots are located, you will need to pick an antenna that covers the appropriate band. Here is a partial list: REGIONS OF THE WORLD The global Helium network operates in a few different frequency bands. If you live in the UK for example, the network operates in the 869 MHz band. For instance if you live in the USA or Canada, the Helium network operates in the 915 MHz unlicensed ISM band. The most important consideration in picking an antenna is the frequency at which your Helium network operates. This is the approach I took and it’s worked well. It’s worthwhile to try this antenna first and establish a baseline for how it works for a few weeks before upgrading to a higher gain antenna. The Nebra hotspot for instance ships with a 2 dBi antenna. Helium hotspots ship with a stock antenna. The Embedded Works 8 dBi antenna is a good choice for many scenarios. For instance, I can see hotspots as far away as 18 miles (29 km) on land and twice that distance across a body of water. I use an 8 dBi antenna with our hotspot that’s in the attic of our house and it works well for our RF scenario. This means that it will also have larger range in the horizontal direction at the expense of in the vertical direction. Embedded Works 8 dBi antennaĪn 8 dBi is more directional and focused than either the stock antenna or the Signalplus 5.8 dBi antenna. It includes a 16 foot cable and the appropriate SMA adapter to connect with your miner. The Signalplus 5.8 dBi antenna covers the frequency range 824-960 MHz so it can be used in the EU, USA, Canada, Australia and any other country that uses these frequencies. The antenna is more directional than the stock antenna that ships with your helium hotspot. This is an omnidirectional dipole antenna with 5.8 dBi gain. The Detailed Review Signalplus 5.8 dBi antenna
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