[Elecraft] K2 initial power ramp after band change

[John Oppenheimer]

Hi Martin,

The power ramp up is normal behavior. The K2 uses requested power
control (Page 92, "Requested vs. Actual Power:" paragraph)

With a per band set value (Page 111, "Microcontroller" paragraph, "ALC,
which is used on CW to maintain the user-specified power level across
all bands.")

When changing bands, the output power is sampled by the microcontroller
resulting with a change in the transmitter ALC to increase power. The
ALC action requires a few dits or TUNE to complete.

John KN5L K2 #7212

On 06/17/2018 01:43 AM, Martin Sole wrote:
> After a band change the first dit, or two, is not at full power. 
> There seems to be an initial ramp up after which all is good and I don't 
> see any fluctuation in power. Supply is 13.5 volts when producing full 
> power, about 13.9 with just the receiver running. Full power current on 
> 28Mhz is showing on the display as 2.66A. I can see the ramp up on the 
> bar graph, it shows one bar for the first 3-4 dots then ramps up to all 
> 10 bars. I have confirmed the same with an external power meter. 
> Anything I can do about this?