[Elecraft] KX1 ATU and PO

[Ed Parish K1EP]

At 5/28/04 12:42 PM, Bob Boehmer wrote:
>Ed -
>
>Congrats on getting 666 on the air! Must have gone more smoothly than could
>have been expected based on the serial number alone hi.

Actually, everything went very smoothly, no problems at all.  Radio powered up right away.  First time connected to an antenna, I sent a series of V's and my call and someone answered right back!

>The very fast relay switching is normal with the auto-tuners I am
>experienced with (KX1 and LDG Z100). They try a given LC combination just
>long enough to sample the SWR then move on to the next and so on.

I have only owned one autotuner (IC756Pro) so I am not familiar with their speed or usual sounds.  

>I am seeing the same kinds of power readings on my KX1. It seems like in
>most cases the better the match the higher the reported power output. It has
>made me decide that I do want to calibrate the power reading on the ATU
>though since I didn't think that 6.3W was realistic.

I have an HP power meter available, although I don't know if the sensor is calibrated that low in frequency.  I am running the KX1 through a Drake MN2700 (tuner bypassed)>  In the SET SWR position of the wattmeter with max sensitivity, the KX1 is deflecting the meter about 60 to 70%.  I will attempt to make a reading on the HP.  Other wattmeters that I have, Birds, do not read HF QRP levels very accurately.