RadioReference.com Forums

Im running a RTL-SDR and a Nooelec-SDR on SDRTrunk and CubicSDR. The Trunk frequencies come in well. Cant get any UHF or VHF ham or aviation frequencies with the small antenna's that came with either kit so Im going to purchase a Tram 1410 discone to put in my attic or on an outside pole. What cable should I use, R6 ?
And what splitter to purchase to feed both SDR's Thank in advance.