DeadRail (DCC over the air) (this page is new and under construction) So traditionally, (and technically according to the NMRA standard) DCC is only sent over the rails. There are products out that send the DCC signal over the air without modification, to be picked up by receivers and then a way is found to feed the signal to a standard DCC decoder. There a Ideas for system configurations Stanton S cab NCE PowerCab Tam valley stuff Dimensions: 2.7" long by 1.2" wide x 0.47" high Battery Voltage (Vbat): 7 to 18 V (5 Lipo cells or 15 NiMH) Input Reverse Polarity Protected Voltage Drop (Vdrop): 0.5V (low current) to 1.0V (high current) Output: DCC (assuming DCC is being transmitted) Outut Voltage: Vpeak-to-peak equal to Vbattery minus Vdrop Current Max: ~3A continuous (depends on amount of ventilation) and 5.4A max for brief periods Radio Frequency: 916.49 MHz