[Elecraft] K3 Beta Firmware Rev. 3.41: Improved RX bass response; Flat DATA-mode EQ; "Live" memory recall; etc.

Tue Oct 6 18:40:02 EDT 2009

The list of what is and is not saved is on the Configuration tab page help
within K3 Utility Help.  If it is in the "not saved" list, you'll need to
recalibrate/reconfigure that.

"Reset" (EE INIT) initializes just a couple of pages of EEPROM, and that is
saved and restored by the K3 Utility.

Dick, K6KR

From: Joe Barger [mailto:jrb17521 at gmail.com] 
Sent: Tuesday, October 06, 2009 2:13 PM
To: Dick Dievendorff
Subject: Re: [Elecraft] K3 Beta Firmware Rev. 3.41: Improved RX bass
response; Flat DATA-mode EQ; "Live" memory recall; etc.

Hmmm ... what other configuration/calibration items are not saved in the
configuration file?  I've reset my K3 and assumed (I know, I know) all those
configuration/calibration values were saved, so I need to know what needs to
be re-calibrated or re-configured.

Thanks

joe n6kk

On Tue, Oct 6, 2009 at 1:09 PM, Dick Dievendorff <dieven at comcast.net> wrote:

No, they are saved in the K3 EEPROM only.

Dick, K6KR

Sent from my iPhone

On Oct 6, 2009, at 1:08 PM, Brian Alsop <alsopb at nc.rr.com> wrote:

> Are the RF calibration values saved in the configuration file?
>
> Brian/K3KO
>
>
> Wayne Burdick wrote:
>> K3 beta-test firmware revision 3.41 (with DSP rev. 2.37) is now
>> available. See release notes below.
>> More refinements are in the works. But alas, it was time to "shoot
>> the  engineers" and get some interim feedback on the many new
>> features in  this revision.
>> --------------
>> IMPORTANT NOTE
>> --------------
>> The latest version of K3 Utility (1.2.9.30) must be used if you
>> plan  to do receiver RF gain calibration. You can find K3 Utility
>> on our K3  software page, along with the K3 beta-test firmware:
>>   http://www.elecraft.com/K3/k3_software.htm
>> Please send problem reports to k3support at elecraft.com.
>> 73,
>> Wayne
>> N6KR
>> * * *
>> MCU 3.41 / DSP 2.37, 10-02-2009
>> * IMPROVED RX LOW-FREQUENCY RESPONSE in AM/SSB/CW MODES:
>> Most noticeable with hi-fidelity headphones or large speakers.
>> NORMalizing
>> the DSP passband still sets the cutoff to about 100 Hz, but DSP
>> controls can
>> be adjusted to provide a lower response. RX EQ can enhance bass
>> further.
>> * NO RX EQ OR TX EQ IN DATA MODES: That is, the response is flat
>> (rolling off below 200 Hz). The RX EQ and TX EQ menu entries now
>> affect only the other modes.
>> * "LIVE" MEMORY RECALL (M>V): If you tap M>V, then start rotating
>> VFO A to select a memory, the K3 will now switch to the band/mode
>> of each memory. Exit memory recall by tapping M>V a second time.
>> * VFO COARSE STEP ROUNDING: Tap '1' in the VFO CRS menu entry
>> to select RND=NO or YES. If YES, the VFO frequency will be rounded
>> off
>> during COARSE tuning. This menu entry also sets the per-mode COARSE
>> step size. Note: The RIT/XIT control moves the VFO in coarse steps if
>> RIT and XIT are not in use (use CONFIG:VFO OFS to turn this on/off).
>> * CWT (TUNING AID) NOW INDEPENDENT FOR CW & DATA.
>> * RF GAIN CALIBRATION PROCEDURE UPDATED: You'll need the
>> latest revision of K3 Utility and a 50-microvolt signal source
>> (e.g.,  an XG2).
>> * SUB RX NOISE BLANKER NOW FULLY INDEPENDENT OF MAIN:
>> This includes the on/off state and NB LEVEL settings. Note: Set
>> CONFIG:NB SAVE to YES to preserve your per-band NB on/off settings.
>> * DSP INTERNAL STATUS MONITORING: In the TECH MD menu entry,
>> tapping 1 (main) or 2 (sub) displays DSP status information. If it
>> is  "FFFF",
>> no error has been detected. Tapping CLR resets the data to "FFF
>> F".
>> * CHANNEL HOPPING IN FM MODE LOADS REPEATER SETTINGS:
>> Repeater offsets and PL tones are now loaded during scanning/hopping.
>> * PL TONE DEVIATION ADJUSTABLE: Tapping '1' in CONFIG:FM DEV
>> allows setting PL tone deviation (300-600 Hz in 30-Hz steps;
>> default,  360 Hz).
>> * EU REPEATER 1750 HZ PL TONE BURST: If a 1750 Hz PL TONE is
>> selected, a 500 ms tone burst will be sent on each PTT activation.
>> * EXTENDED 6-METER TUNING RANGE: The VFO can now be tuned
>> down to 44 MHz to monitor signals that may be correlated with 6-meter
>> band openings. Loss increases rapidly below 49 MHz (-34 dB at 45
>> MHz),
>> so a preamp (e.g., the Elecraft PR6) may be needed to obtain a
>> useful  NF.
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