So maybe if I want to record something at the rig, all I need is the software from DISH. The external hard drive is always with my laptop, which is always with me at the rig.
And then maybe not. After checking DISH's info on using an external hard drive, the requirement is that it has it's own power supply in order to use it with the 211k receiver. Mine is powered by the USB connector from the laptop. Poop