A system and method for mounting photovoltaic solar panels onto a roof. A waterproof element completely covers the connecting part of the connecting element. The first predetermined signal is different from the second predetermined signal. A first urging device is positioned to urge the positioning device into a disengaged position. Additionally, because the electronic device processes the digitized voice received from the remote control device, the electronic device can negate the effect of sounds, such as television audio, likely captured by the microphone on the remote control device. The conversion table preserves the parity of the m-bit source words over the codeword and limits a characteristic of the codeword specified for each starting bit position in the code word.