[Elecraft] K3 Beta Firmware Rev. 3.59: Misc. improvements

[Wayne Burdick]

K3 beta-test firmware revision 3.59 (with DSP rev. 2.46) is now  
available. See release notes below.

Rev. 3.59 does _not_ include any changes to DVR message playback and  
cancel. These are still in the works and will be made available in  
time for the phone contest this weekend.

Please send any questions to k3support at elecraft.com. For instructions  
on how to load beta firmware, see:

      http://www.elecraft.com/K3/k3_software.htm

73,
Wayne
N6KR

* * *

MCU 3.59 / DSP 2.46, 11-18-2009

* FSK-D WAS CHANGING TO AFSK-A ON A/B or REV: Fixed.

* SYNC AM VFO TRACKING ACCURACY IMPROVED (DSP 2.46). The offset
contributed by the synchronous AM detector's PLL should be only
a few Hz, max.

* SWR INDICATOR TONES AFTER ATU TUNE: If switch tones
are enabled, a second tone will be emitted following an ATU TUNE.
This tone provides a rough idea of the SWR that the KAT3 was
able to obtain:

   Lower pitch than 1st tone: Unknown SWR (ant. may be shorted)
   Same pitch as 1st tone: SWR <= 2.0:1
   Medium-high pitch: SWR <= 3.0:1
   High pitch: SWR > 3.0:1.

This feature was added primarily for our blind customers, but it’s
useful whenever you tap ATU TUNE without looking at the final SWR
reading.

Remote Control Command Changes:

* IC COMMAND (ICON status): Now returning correct message
bank in voice modes (byte a, bit 3).