P1225 programming power
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- What radios do you own?: HT1000,MT1000, HT50,MAXTRAC
P1225 programming power
When programming ht50's or P100's, for power during this I have a spare radio case for the 10 volt batteries these radios run on. As the P1225 radio needs the same type of battery block, how much resistance would I need to put in line to safely use the 10 volt battery to program the 7.2 volt P1225, or, could I get away with the 10 volts for just programming? Thanks in advance.
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Re: P1225 programming power
NO, you need 7.5 volts for the P1225, and GP series radios.
Not sure why you have 10 volts. So you NEED a voltage regulator to regulate the 10 volts to 7.5 volts.
A LM317 - 1.5A Adjustable Positive Regulator three lead is what most of us use. Set to 7.5 volts.
Technical Information - National Semiconductor LM317T Datasheet
http://www.futurlec.com/Linear/LM317T.shtml
Not sure why you have 10 volts. So you NEED a voltage regulator to regulate the 10 volts to 7.5 volts.
A LM317 - 1.5A Adjustable Positive Regulator three lead is what most of us use. Set to 7.5 volts.
Technical Information - National Semiconductor LM317T Datasheet
http://www.futurlec.com/Linear/LM317T.shtml
Re: P1225 programming power
Why wouldn't you just stick the P1225 in the programming charger cradle with a battery on it?
Re: P1225 programming power
Some aftermarket batteries do not have the programming connection in them.
Re: P1225 programming power
I would never have thought of that, since I never use an aftermarket battery. Thanks!Will wrote:Some aftermarket batteries do not have the programming connection in them.