Elecraft firmware changelog

2008-03-01 · K3S · v1.70 → v1.73 VFO linking with SUB switch, eliminated speaker popping with headphones, improved mic input signal-to-noise ratio.

2008-02-20 · K3S · v1.69 → v1.70 Improved ATU matching for high-Q loads, added RIT/XIT offset display, and blocked transmit 7.5-9 MHz.

2008-02-18 · K3S · v1.68 → v1.69

2008-01-30 · K3S · v1.66 → v1.68 CW-to-PSK transmit added; UP/DN remote commands enhanced for parameters; data mode stored per-band and per-memory.

2008-01-29 · K3S · v1.65 → v1.66 Fixed ATU TUNE to automatically use 5W/10W power instead of TUN PWR menu value

2008-01-28 · K3S · v1.65 first tracked Mode switch cycles one sideband per band, new TUNE POWER menu, and corrected RTC display