I am working on installing a wall mount antenna for a receiver that will activate a tornado siren. The receiver will be placed in a brick building and my goal is to have a halfway decent mount. I ordered a medium duty mount (Nello Medium Duty Wall Mount) and I seen that the mount comes with 1/4" x 2" lag screws. As I am installing this mount into a brick surface, do I need to have additional hardware (lag shield, etc.) in order to achieve a secure mount? My second inquiry is regarding the antenna mast. I plan on using a 1 3/4" x 5' galvanized steel pipe as my mast. Will this be sufficient or will I need to look into another mast option? Please keep in mind that this antenna will not transmit any data. It will only receive and monitor for two-tone sequences that will in turn activate the siren. Thanks ahead of time for any help!