Alan, can you tell me which is the best antenna pls, i have tried my discone what i use foe scanning, but it has a long coax to the house, not much good, at the moment i am using a 2mtr 70cms colinier, which is bringing in max 10 my flights, i am also using a moonraker mrp2000, 25 to 2000 mhz preamp, would you reccomend the radiorama or the radar extender colinier, thank's once again. jeff.