In working out some additional battery power for portable operation I wanted to know the current consumption of some of the HF radios that I own. While I have a KX2 I didn’t include it as I’m not all that concerned about power consumption as it sips electrons.
Sometimes more than 10W may be necessary so taking a 100W radio for some portable operations is a nice option. I measured the current consumption in 5W increments for the following radios:
While I would never use the TS-590SG for portable operation I included it just for comparison. The results are in the table below (current in Amps):
The measurements were made using a Samlex SEC-1223 power supply and a Powerwerx Inline Power Meter.
Measurements were made in CW mode on 20m into a Drake DL1000 dummy load.
Current consumption was a bit higher on lower frequency bands. For instance, on 40m most of the measurements were anywhere from 300-500mA higher.