"Gordon Wedman" wrote in
news:L9hjc.19528$en3.14177@edtnps89:

I noticed in the manual for my Icom M600 that they recommend
transmitting only with the engine running. I assumed this was to
offset the high current draw. I also noticed they show 13.6 volts as
the supply voltage so now I'm wondering if this is another reason for
having the engine running? Will the radio not transmit at full power
if it doesn't get 13.6 volts? I figure my 4 T-105s can supply the
current but they don't supply 13.6 volts.




They are simply trying to avert the "less informed" consumer, those ones
wearing Bill Ingvall's "I'm Stupid" signs, from blaming Icom for the dead
single starter battery in "I'm Stupid"'s boat.....

Lionheart's M802 works ham DX for hours on its twin banks of 700AH golf
cart monsters with no engine running....even on digital modes. SSB needs
PEAK amperes off well connected batteries, but, unlike your FM
transmitter's continuous high-amperage drain, SSB's AVERAGE current drain
is quite low, indeed, without its transmitting a carrier....

Larry W4CSC