I would like to program a spectra to transmit digital on a car to car direct frequency. I have a business license in the VHF range with a repeater pair and also have non-repeater frequency. The frequency I want to use is NOT one of the repeater frequencies, repeater is not digital. Repeater in the 152 range, other frequency in the 151 range. I have programmed all of the personalities in the conventual mode with the exception of this one I am trying to program.. I attempted to program one channel under "ASTRO" mode. I set the personality to CSQ, RX and TX Options to mixed mode, and ASTRO to a NAC code. I have not programmed anything under the ASTRO systems tab. When I programmed it into the radio, the "DIR" light remained lit on each channel that I can transmit on, which is a total of Four. Also, I assumed that since I am not trying to access a repeater I do not need a DMR code. It's my understanding that DMR is for HAM operators or large trunking systems. This is my first attempt with a digital radio and I not having much luck.