User manual AUDIOVOX MGH300

[. . . ] ANY ACTION FOR BREECH OF ANY WARRANTY HEREUNDER INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 30 DAYS FROM THE DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREECH OF THIS OR ANY OTHER WARRANTY , EXPRESS OR IMPLIED , WHATSOEVER . No person or representative is authorized to assume for the company any liability other that expressed herein in connection with the sale of this product. Antenna 9 PIN CONNECTORS BLUE RED BLACK AUT ANT TO 12V DC (+) POWER TO GROUND (CHASSIS OR 12 VDC (-) WHITE GRAY VIOLET W/BLACK Front Left Speaker GREEN W/ BLACK Front Right Speaker GREEN VIOLET VIOLET W/BLACK Rear Left Speaker 2 GREEN W/BLACK Rear Right Speaker Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you. [. . . ] AUDIOVOX SPECIALIZED APPLICATIONS, LLC 23319 COOPER DR. ELKHART, IN 46514 Visit us at http://www. asaelectronics. com 7 APPLICATION NOTES This note will discuss DC Power sources and how they relate to 12 volt products. General Specifications Our general specification for the voltage range of operation is 10 to 16 volts DC . Voltage The voltage of a fully charged battery ( engine not running ) is approximately 12. 5 VDC. Once a load (items being powered represent the "load" ) is applied , the voltage will drop. How much the voltage is reduced will depend on the following: 1. Current draw (amount of amperage) The higher the draw the greater the voltage will drop. The size and length of the conductor (wire) supplying power. Converters Many boats incorporate convertors as a source for 12VDC when connected to shore power (110-120 VAC). Some converters put out a very clean DC supply where others may have a considerable amount of AC ripple noise under maximum load. Please contact ASA at www. asaelectronics. com for a view of our on-line catalog. " 6 TROUBLESHOOTING CHART AM/FM RADIOS Symptom No Power APPLICATION NOTES AM/FM RECEPTION Some boats have more than one AM/FM radio. The best way to insure good reception is to supply a separate antenna for each radio. Other options available to supply adequate AM/FM reception to these radios are listed below, along with some general information in regards to radio reception. "Y"ADAPTORS The "Y" adaptors used to connect one antenna to two radios will compromise both AM and FM reception. AMPLIFIED AM/FM ANTENNA A popular second antenna that can be used is our AB-100 amplified AM/FM antenna . It is small and has a retractable mast that can be mounted vertically or horizontally. This antenna provides good FM reception , but the AM reception will be compromised to some degree because of the length of the mast. MAST LENGTH AM/FM antennas compromise AM reception by design . The optimum mast length for FM is approximately 30 inches which is the standard for most automotive antennas. The optimum mast length for AM reception is over 100 inches which is not practical for mobile applications. [. . . ] Special circuitry in electronic tuned radios or AM trimmers in mechanically tuned radios, make up for some of this difference in optimum mast length for AM reception. ANTENNA CABLE Increasing the antenna lead cable ( adding extensions ) will reduce sensitivity of AM with electronic tuned radios. GROUND PLANES Ground planes are also important when considering antenna performance. [. . . ]