AI6SL, ex DK2BZ

Operations:

1. Mostly CW
2. QRP when possible, some SOTA work.
3. Lots ARES work after I was made Sunnyvale emergency coordinator
4. I can do digital but don't use it much
5. Single side band - hardly ever

Rigs:

1. Yaesu FT-991, nice to have all bands in one radio.
2. ICOM IC-7300, getting to be my main radio
3. Elecraft KX2, great QRP radio. Need to get out more on some SOTA missions
4. Kenwood TM-V71A, used mainly for ARES packet operation
5. Btech UV25X4, used to be in my car. But it is just too nerdy for my new Porsche. My only way to get on 220MHz.
6. Bunch of HTs for ARES work, evenly spread around in cars, go-kits, offices, etc.
   • Yeasu FT-60
   • Yeasu VX-6
   • Baofeng BH-F8HP
   • Baofeng UV-5R
   • Baofeng GT-5R
   • Radioddty GD-88 (DMR)
   • Radtel RT-880
7. Several antiques - I can't let go of old radios, one can actually work on those without a microscope.
   • Heathkit HW-8, built in 1976, still working and now does perfect QSK and RIT
   • ICOM IC-2A, added a tone generator, use it to monitor 2m, reaches some local repeaters.
   • Santec 50W 2-m amp used with th IC-2A.
   • ICOM IC-2AT, added a real (external) S-meter and mag loop and use it for direction finding.
8. SDR dongle with DireWolf on a Raspberry PI, running an APRS I-gate 24/7 (AI6SL-5)
9. SDR dongle receiving WSPR data 24/7 on various band.
10. SDR dongle with HF up converter, used on a laptop to check the band conditions
11. Belka-DX receiver, tiny but pretty decent with a real antenna
12. AVRT5 APRS tracker, rarely used, mostly in the plane: pretty good coverage across the country

Keys:

1. Begali Contour - used most of the time
2. Elecraft KXPD2 paddle - used with the KX-2
3. 3D printed paddle - occasional use
4. Nye paddle - wired to the HW-8
5. KN6YB bug - eventually I'll figure out how to use bugs...
6. Les Logan, SpeedX model 515
7. Nye straight key - for SKCC work requiring straight keys
8. 3D printed straight key - rarely used

Antennas:

1. Inverted V fan for 40m, 20m, and shortened for 80m. The 40m one works fine on 15m, very narrow on 80m
2. Hex Beam for 20m through 6m.
3. Ed Fong tri-band J-pole, 144, 220, 440
4. 2m J-pole for the APRS I-gate
5. 25ft random wire, used to WSPR receiver - not working very well (maybe the SDR?).
6. Mag loop that tunes 30m through 15m - don't use it much, too narrow.

Tools:

1. Impedance matching: designs matching circuits for any pair of impedances.
2. Pi Attenuator: computes resistor values for a pi or T attenuator for various attenuations and impedances.
3. LC Circuits : computes relation between frequency, capacitance, inductance, impedance, given any two parameters.
4. ... too lazy to put other things on the web - maybe sometime