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

[Dick Dievendorff]

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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