Amp Draw Needed M1225

frodo · Post by **frodo** » Wed Dec 13, 2006 1:53 pm

Can some one supply me with the amp draw for a 4 channel M1225 while transmitting. I noticed broduct brochures for other models include it, however it doesn't appear to be on this one.

Thanks

Will · Post by **Will** » Wed Dec 13, 2006 2:00 pm

What frequency range? What power output?

frodo · Post by **frodo** » Wed Dec 13, 2006 5:25 pm

Sorry, VHF 25-45 watt

RKG · Post by **RKG** » Wed Dec 13, 2006 7:27 pm

As a rough rule of thumb, take nominal transmitter output, double it, divide by 10, and round up to the nearest even number, and that is the nominal current draw when running on nominal 12VDC. However, you should then add something when sizing a power supply for that unit, to avoid having voltage drop when the radio keys up.

We run mid-power radios (primarily Spectras, CDMs and MCS2000s) on 20 Amp power supplies without issue.