Hi guys, I already have Motorola MTR2000 for my repeater build. Now I need a high gain antenna for it. One of my friend already using 1480 for his GR1225 and he told me it is better than 1480. But after I check I find out the 1486 is for GMRS not the 1480. So which should I pick? I need someone have really life experience not just on the paper. The repeater will be located in Upland, California. Channel 16, 20, 22 can not be use. Which channel should I pick? Thanks!