[Reliable connection!!]

Thank you both for the advisement!! And I'm sorry for the late response, but I would try to move the antenna to a higher position, I will try a different kind of cable and use a short piece of coaxial in order to check the communication. I'm already order online a new SWR tester, so I will be able to see where is the problem. I used to be a VHF radio user in another country, and let me tell you that Im impressed with the range of signal of the VHF, and I only operated a pair of Yaesu H.T. and a 25w. Vertex as a base and I covered a big distance with no problem. With those devices I could easily cover the whole city in VHF, but GMRS looks to be a weak radio signal, even if you have a 40 or 50 watts base. It looks like you have to live in a building near to the top of the building and mount the antenna at the rooftop of the building in order to have a "reliable connection" between your base and the mobile devices. Once again, thank you very much for your answers and advisement.

[Reliable connection!!]

I've just got a MXT400 and the power supply recommended for Midland, 50' of RG8X UHF coaxial, and UHF Base Antenna with +5dB Gain which came in a plastic bag and you have to fit in a 3 1/2" of 200psi plastic pipe. Everything is installed and the antenna is located at 20' from the ground at the rooftop of my house, but I don't have a reliable connection between my base and the rest of my devices. It not give more than a one or two miles of range. I would like to ask someone for help if I'm doing something wrong? Thank you for your help!!!

 

[Powering a Midland MXT400 as a Base Station]

On 2/5/2021 at 7:52 PM, scottnicely said:

Hello. I'm a bit of a newbie here and thought I would share some information, as well as see if anyone else ran into this. I bought a second Midland MXT400 to serve as a base station. Instead of hooking up to a 12V battery, I wanted to plug into an AC to DC converter. I bought one that I thought would work. However, the MXT400 gave a "LO DC" error on transmit at full power. I began to think there was a problem with the radio. However, if I lowered the radio to Mid or Lo for transmit, it worked ok. I also then hooked it up to the truck battery directly and its did not have this response at full power transmit. So, I did some research and Midland said this radio needs at least a 10 AMP AC to DC converter (mine was a 6 AMP constant, 8 AMP surge). I've ordered a 10 AMP constant, 12 AMP surge) and will update the outcome here.

 

https://midlandusa.com/convert-micromobile-base-station/

 

Scott

Hi there!! I'm a new GMRS licensed user and the reason of this post is to ask you about your  experience using a MXT400 as a base station. I've installed my base at home, and it's connected to a 50' of RG8X coaxial cable and a UHF Base Antenna with +5dB Gain for GMRS radios. I've located this antenna at 20' from the ground at the rooftop of my house, the base is connected to the power supply recommended for Midland, but I don't have a reliable connection with my devices. It not give more than a mile of range. I live in Miami, Florida and I don't know if I'm doing something wrong and would like to ask you, or someone, if can help me with this issue. Thank you for your help!!!