Here is what is going on. The subscription information is stored on the smart card.
The subscription information has an "expiration date"
Every few weeks or month Dish sends a signal to your receiver to update the expiration date.
If the receiver is not connected to the satellite, it doesn't get the update and after a certain date the channels go away.
3 options to fix this....
A) keep calling to refresh the signal each time you go camping.
B) go camping more often like every week
C) setup a temporary feed in your house, and hook up the receiver to a satellite feed when not being used.
The subscription information has an "expiration date"
Every few weeks or month Dish sends a signal to your receiver to update the expiration date.
If the receiver is not connected to the satellite, it doesn't get the update and after a certain date the channels go away.
3 options to fix this....
A) keep calling to refresh the signal each time you go camping.
B) go camping more often like every week
C) setup a temporary feed in your house, and hook up the receiver to a satellite feed when not being used.