[Elecraft] Need testers for new KX3 firmware allowing 10 W output down to 10 V supply

[Wayne Burdick]

Hi all,

We have a new field-test release of KX3 firmware (rev. 2.34) that will let you set power output as high as 10 watts with a supply voltage of as little as 10 volts. Previously, settings over 5 watts required a supply voltage of 11 V.

This change will be especially useful when the rig is powered by a 3-cell Li-ion battery pack (typically three 18650 cells). Such packs initially put out over 12 V, but quickly drop to about 11 V. By the time they get to 10 V, they're nearing end of charge, and you really do want to drop to 5 W at that point. But while they're in the 11-V range, up to 10 W is practical.

We still recommend the use of higher supply voltages when available. But you'll now be able to get that extra 3 dB in the field when if really need it.

If you'd like to give this firmware a try, please email me directly. If I don't get back to you, don't worry -- the new code will likely be promoted to beta status early next week.

73,

Wayne
N6KR