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magnum 257hp

jon666

Sr. Member
Jan 24, 2006
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i read somewhere on here you are supposed to run this radio at 14.2 volts
is this true. i just ordered one and i need to know
thanks
 

You can run any radio up to 14.4 volts safely.
14.2 volts is just fine.

Remember that an automobile's electrical charging system cycles between 13.8 to 14.4 volts. Radios are built around these engineering parameters. Even many base station radios - too.

The 257HP will require about 15 amps though; make sure you use a 20 amp power supply @ 14.2 volts for optimum performance if using it as a base radio . . .
 
Last edited:
i read somewhere on here you are supposed to run this radio at 14.2 volts
is this true. i just ordered one and i need to know
thanks

When you look at any "GOOD" Power supply it will have a red slash at the max input voltage well 95% of the time I would be careful if I was you not to toy around with anything over what Robb said.
 

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