[Elecraft] K3 & P3 Beta Firmware Release: "Fixed-Tune" mode for theP3

[Bill Conkling]

Wayne, and all who worked on this feature release.  I downloaded and
installed both beta upgrades last night.  WOW!  I like the Sx vertical scale
and the 'fixed-tune' feature.  After working with it for a while, I do find
it difficult to find the 'cursor bracket' under the 'grass' at the bottom of
the display.  Is there any possibility to provide the vertical line that
used to be in the center, only have it move to indicate the "VFO" frequency?

Thanks for all you do....

...bill conkling    nr4c

-----Original Message-----
From: Wayne Burdick [mailto:n6kr at elecraft.com] 
Sent: Thursday, January 13, 2011 2:20 PM
To: Elecraft Reflector; elecraft_k3 at yahoogroups.com;
elecraft at yahoogroups.com
Subject: [Elecraft] K3 & P3 Beta Firmware Release: "Fixed-Tune" mode for
theP3

K3 firmware revision 4.25 and P3 revision 00.50 are now available.

The P3 firmware provides a major new feature: fixed-tune mode. In this  
mode, frequencies on the P3 display remain fixed, while the VFO A  
cursor moves across the screen as you tune. Fixed-tune frequency  
ranges are stored per-band. You can set up the P3 to automatically re- 
set its center frequency whenever the VFO is tuned off-screen  
according to one of four auto-adjust modes. K3 firmware revision 4.25  
or later is required.

Other new P3 features include:

  * an option to display signal level in S-units instead of dBm
  * optional solid vs. dotted amplitude graticule lines
  * additional transverter support
  * an option to enable or disable the CENTER key in tracking mode
  * better preamplifier relay control

See detailed release notes below.

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

* * *
P3 REV. 00.50 RELEASE NOTES

* FIXED TUNING MODE: A new fixed-tuning mode keeps the P3 frequency
display constant. Instead of the display tracking the K3 VFO A, the
display frequencies stay fixed and the VFO A cursor moves across the
screen as the VFO is tuned. Requires K3 firmware version 4.25 or later.

* DISABLE CENTER FUNCTION: Added MENU:CenterEn option to disable the
CENTER function in tracking mode. Disabled is the default. The CENTER
key still works to re-center the display on the VFO A frequency.

* DOTTED OR SOLID GRATICULE LINES: Either dotted or solid graticule
lines for the amplitude level may be selected via MENU:Lvl Lines.

* SCALE EITHER dBm OR S-units +dB over S9: The spectrum vertical
scale can now be either dBm or S-units plus dB over S9, as selected in
MENU:Lvl Mode.

* MENU DEFAULTS TO FW REV: At power-on, the MENU selection defaults
to FW Rev.

* MENU FUNCTION "XV Invert": Added a MENU function "XV Invert" to
indicate whether the spectrum should be inverted or not on each
transverter band.

* FIXED PER-BAND REF LEVEL STORAGE: Fixed incorrect per-band reference
level storage when using MENU:Span Set.

* PREAMP STAYS OFF UNDER STRONG SIGNALS: The preamplifier now stays
off when strong signals that could overload the ADC are present in the
passband. The wrong trip level was used previously.

* RELAY CLICKS LESS OFTEN: Modified the preamplifier algorithm to
make the relay click less often.


K3 REV. 4.25 RELEASE NOTES

* P3 FIXED-TUNE MODE SUPPORT: The P3 now has a
"fixed-tune" mode, where the displayed range remains constant
as the VFO is turned. Requires P3 firmware rev 0.50 or later.

* FIXED A/B SWITCH PROBLEM DURING BAND CHANGE:
CW or SSB filter setups were sometimes getting changed when
a quick memory was recalled, followed by a quick tap of A/B.

* For software developers: FW$ GET and BN$ GET commands added.


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