Proxicast 4G/LTE External Magnetic Antenna - 6.5~8 dBi Loaded Coil - SMA | Compatible with Cisco, Cradlepoint, Netgear, Pepwave, Digi, MoFi, Sierra & Other 4G SMA Routers/Modems - ANT-124-SMA-2PK

Modest cellular signal improvement even in the dead middle of a Cement block building with other radio interface devices. Purchased to boost cellular reception of Cradlepoint bench (test) device(s) which are sometimes located in the middle of a cement cinderblock building. Saw a modest improvement on cellular signal strength. Installed 2nd antenna in a 2023 Kia Telluride - routed cable through rear tailgate and into tire jack cubby on inside of vehicle. Magnetic mount sticks to the roof of the vehicle.

The magnetic bases are decently strong, but I wouldn’t leave these on the outside of a vehicle or trailer while driving. The cables are typical thin coax and it’s not really practical to extend them. If you already have a weak signal, these are not going to help much. These are fine if you just need to get to the other side of a solid object like a brick wall, metal screen, or cement block.

Zero signal improvement for my ATT LTE connection I have a smaller antenna with the same physical design which gives a 4 dbi signal improvement.

I bought these for the Orbi LBR20 to use in setting up an outdoor site survey for a property we are moving to. With them I was able to identify a tower that was about 15 miles away with a clear line of sight, on band 2, and get around ~8Mbps up/down once I had arranged the antennas correctly. Without the antennas I was still able to get link, but the Mbps was a bit lower. Most of my experience with this is anecdotal, but they seem to work for me and for $20 I wasn't expecting to see any sort of significant gains other than getting my router from 2x2 MIMO w/ builtin antennas to 4x4 MIMO w/ builtin and these antennas.

I ordered these to install onto my MoFi LTE router to bring in a signal in from the outside since the building was a tin box because it was built with sheet metal. This item was as advertised and mounted great and firm onto the side of the building. I would advise some kind of separate tougher adhesive or magnetic mount which was not expected in this purchase if you are in an area requiring a firmer grip on the building. Overall, this fit and had the correct connectors on the end to connect to my router. I would highly recommend this purchase!

There is little to no improvement in cell signal strength and they don’t stay in the device

I purchased these for use with my mobile POC radios. The one mounted on my vehicle gets very good 4g signal strength pretty much everywhere I go. These have a very good magnet on the bottom to hold them in place.

I purchased this product to enhance my wifi router signal reception. Unfortunately, no matter the positioning, it did not significantly improve reception. It was actually worse at times. Surely a miss in my book.