MCU 1.76 / DSP 1.27, 11-20-2013
Initial KX3 f/w release with KXPA100 support
• MENU:PA MODE NOW HAS POWER-OUT CAL (P out CAL) SETTING: This enables 75-W power calibration in TUNE mode. When PWR is adjusted, and “P out CAL” mode is in effect, setting power to 75 watts shows “CAL 75W” on VFO B.
• KXPA100 DRIVE POWER CAL DATA UTILIZED: If the KXPA100’s per-band 75-W drive power has been saved at the factory, the KX3 will use it. If not, the KX3's own per-band amplifier drive data is used (if available). This data is created by setting PA MODE to Pout CAL (see above), then doing a TUNE on each band at 75 W.
• IMPROVED POWER CONTROL. As the KX3’s PWR control is adjusted, the KXPA100’s output now more closely approximates the requested value.
• KX3-2M SUPPORT (instructions TBD).
• DTMF TONE SUPPORT ADDED IN FM MODE: To generate DTMF tones: (1) Hold PTT; (2) tap FREQ ENT switch to enable DTMF keypad; (3) tap desired switches [0-9, * (ATU TUNE), # (MSG), A (MODE), B (A/B), C (DATA), D (A>B)]. Release PTT or tap FREQ ENT to disable DTMF keypad. Switches can be held indefinitely to generate longer-duration tones.
• FM RX & TX IMPROVED: Reduced FM distortion on receive. TX deviation max now 6.0; default 5.0 (U.S. standard).
ftp://ftp.elecraft.com/KX3/firmware/beta
