Well I decided to run my KX3 in the QRP class of the SSB portion of the North
American QSO Party. This was the first time I had ever done SSB contesting at QRP power levels. During the 2 day warm spell we had last week, I was able to repair and re-install my 80 meter doublet which had come down during the last snow storm.
The next step was to get the KX3 ready for a SSB contest. To setup the KX3 for the contest I had to figure out how to interface my Heil Pro head set to the KX3. I use a headset and foot switch during SSB contests so that I can keep my hands free to type on the keyboard. Connecting the Heil head turned out to be straight forward because the 1/8″ headphone and mike connectors will plug directly into the KX3 mike and headphone inputs. However, a KX3 menu setting had to be changed to disable the mike PTT button because the 1/8″ mono phone plug on the Heil head set will enable the PTT since the KX3 mike jack is a 1/8″ female stereo jack. Elecraft provides a menu setting to disable the PTT function for this reason.
The next thing I had to do was interface my foot switch to the KX3. I determined that the foot switch can be connected to the KX3 through the ACC2 connector. The only problem I had interfacing the foot switch was connecting the 1/4″ male mono phono plug from the foot switch to the 1/8″ ACC2 female jack. Elecraft sells a nice cable for the ACC2 input which plugs into the KX3 and provides RCA female connector (to key an amplifier) and a 1/8″ female mono phone input which can be used to access the PTT function. Once I had the Elecraft cable all I had to do was make a 1/4″ F phono to 1/8″ M phono adapter. I happened to find an adapter cable in my Junk box so I was in business. The only other thing I had to do was a simple menu change to tell the KX3 that the PTT should activate when the ACC2 center pin is pulled low.
I found that operating QRP in a SSB contest is a bit more of a challenge than running 100W, but I was still able to work nearly all of the stations I called. Sometimes I had to wait in line behind the high power stations but I usually did not have to call more than two to three times. In most cases I was answered on my first call. The main exceptions were the rarer states such as WY and DE. I even managed to work Alaska and Hawaii during the contest.
Here is a summary of my QRP part time Search and Pounce effort:
BAND | QSO | POINTS | SEC |
3.5 | 12 | 12 | 10 |
7 | 57 | 57 | 26 |
14 | 50 | 50 | 23 |
21 | 42 | 42 | 15 |
28 | 26 | 26 | 7 |
TOTAL | 187 | 187 | 81 |
SCORE 15,895