First off im studying to take my technician class license and new to all this.Im going to start out cheap at first nothing fancy yet until I get experience.My question is im going to purchase a beofeng handheld radio and a slim jim 2m 70 cm antenna just to get started,i live in a mobile home and was thinking of attaching pvc to my deck and have it sticking up about 3 ft over my roof.The pvc will look like the letter F with the antenna mounted between the two 90 degree sections if you can picture that,i was wondering if it being about 3 ft above the roof and about 3 ft from the side of my mobile home will the metal from mobile home interfere with the antenna function?Also i live in a valley and the mountains on each side are about 1200 ft high will that affect my distance on transmitting and receiving?Thanks and sorry for such a long post.