That problems ....

Fortunately I've tried before leaving with the camper ....
Connecting the device to the dish (on a tripod in the house), and choice of satellite (Astra 19.2). Curiously, the STRENGTH bar is at 48%
Same with the LNB of the dish removed.
I deleted all the data pointer, reprogrammed ASTRA L1, same.
The disconnected LNB, the bar is at 24%. One wonders from where does this signal
Worse: The power supply i wanted to test battery: the battery case, yet unplugged and laid on the couch, this is set up short circuit make brulantes batteries.
Positive:
Having set the dish with the decoder, i reconnected the SF-500: it sounds good, and QUALITY bar responds well, but STRENGHT nimporte indicates what.
I can not recommend this material, especially at this price point