I have a custome made unit made for setting up inside a helicopter for broadcasting traffic reports . Everything is self contained in a pelican case. This was used a few times. Exremely portable. The marti-rpt-15 is in like new condition on a shelf assy in the pelican case along with relays circuit boards cooling fan. Basically it was hooked to the aircrafts aux power supply to power it up and external antenna on the aircraft to transmitt then a 2 way radio was hooked up along with a cell phone adapter and headset and push to talk setup. Alot of money was put into this unit. Im asking $2000 for it. Over $3000 was put into making this unit. You can part this out and use the marti transmitter or use the unit as it is alredy wired for operations.