[Elecraft] [Elecraft_K3] K3 Firmware rev. 4.39: New main/sub AF mixer settings, high-res. S-meter read command, etc.

[David Yarnes]

I just updated my K3 with the latest firmware (4.39).  The laptop I have at 
the operating position does have a serial port, but I decided this was the 
time to check out my latest acquisition--a 4 port serial hub I had seen 
discussed here on the Elecraft reflector.  see 
http://cgi.ebay.com/New-USB-2-0-4-Port-RS232-Serial-Parallel-DB9-Adapter-/160582570565?_trksid=p3286.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D2%26po%3DLVI%26ps%3D63%26clkid%3D1166229576613738621

Anyway, it worked just fine!  Now I have more serial ports than I can say 
grace over!  One little blip though--the hub has 4 ports marked "com1, com2, 
etc.  When I installed them, my computer said it had opened com ports 6 
though 9.  So, I assumed "com port 1 on the hub would be "com port 6 on my 
computer.  Not so!!!  It turned out that com 1 on the hub was actually com 
port 8 on the computer, so they apparently don't get assigned in any order. 
I wasn't expecting the numbers to match of course, but I did assume they 
would be sequential.

Anyway, after I got that figured out, everything went very smoothly.  As far 
as I can tell at this point, these 4 port USB/serial hubs are pretty good. 
Anyone looking for a USB/Serial adapter, and needing more than one for all 
your goodies, might want to check this out.

Now I'm planning on trying to hook up my old Icom PCR-1000 to the hub and 
see if it really does give me multiple ports.  Don't see why it shouldn't.

Dave W7AQK


----- Original Message ----- 
From: "Wayne Burdick" <n6kr at elecraft.com>
To: "Elecraft Reflector" <elecraft at mailman.qth.net>; 
<elecraft_k3 at yahoogroups.com>; <elecraft at yahoogroups.com>
Sent: Wednesday, July 06, 2011 8:55 AM
Subject: [Elecraft_K3] K3 Firmware rev. 4.39: New main/sub AF mixer 
settings, high-res. S-meter read command, etc.


K3 beta-test firmware revision 4.39 (with DSP rev. 2.73) is now
available. 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

* * *

MCU 4.39 / DSP 2.73  July 6, 2011

* NEW AF MIXER COMBINATIONS (CONFIG:L-MIX-R): Added AB A, B BA, B B, B
A, A A. These may be useful for “SO2V” operation and various DX/
contest scenarios. ("A" refers to the main receiver, "B" to the sub.)

* KAT3 IMPROVEMENTS: T/R timing and power thresholds changed to
improve SWR measurement sensitivity.

* P3 and PC NOTIFIED ON RX ANT CHANGE: Switching RX ANT on/off now
informs the P3 and a connected PC of possible changes to the preamp
and attenuator settings. These are stored separately for the RX ANT on
and off cases.

* ADDED "SMH" COMMAND (high-resolution S-meter): This is presently
experimental; it is intended to work with W8WWV's “S-meter Lite”
program. "SMH;" responds with "SMHxxx;" where xxx is approx. 005 @
S-1, 040 @ S-9, and 100 @ S9+60. Resolution is approximately 1 dB.
NOTE: The value returned will probably be adjusted after
testing.“BG” (BAR GRAPH) REMOTE CONTROL COMMAND: Added 'R' or 'T' at
end of this command to indicate RX (S units) or TX (watts).




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