Panasonic SC-GA10 Owner's Manual page 17

Wi-Fi signal strength
You can check the Wi-Fi signal strength where
the unit is located.
Preparation
≥ Connect this unit to the network. (l 10)
Touch and hold [NET] and [AUX] for at
least 4 seconds.
The status indicators (l 7) will light up and
show the strength.
Level 0 (no signal)
Level 1 (weak)
Level 2 (middle)
Level 3 (strong)
≥ It is recommended to have a signal strength of 3. Change
the position or angle of your wireless router or this unit if
the indication is 2 or 1, and see if the connection
improves.
≥ If the strength is level 0, the unit cannot establish a link
with the wireless router.
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