[Elecraft] looking for documentation on E870018 PA/LPF for KPA500
I have reached out to Elecraft support, and they have acknowledged, but they let me know it may be a week or more before their amp team can reply. I have damaged components in the LPF portion of the KPA500 PA/LPF Assembly - E870018. Does anyone have any details of how that assembly is put together, and/or full specs on the LPF caps? The KPA500 schematic only shows component values. 73, Jim WU6K __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K4 Beta Software Release 19 now available
K4 beta software release 19 is now available. Release notes are provided below.
They can also be viewed at the K4 itself from within the update app.
This release has significant improvements and is recommended for all K4 owners.
To install the beta software, make sure you have an ethernet connection, then:
1. Tap Fn, then hold UPDATE
2. Use the pulldown menu at the top of the screen to select Beta Release (if
you didn't have this selected already).
3. Tap Check for Updates. This downloads the new code but does not do the
installation. This gives you an opportunity to optionally tap "Release Notes"
and read the notes first.
4. When you're ready to do the installation, tap "Install".
NOTE: If the status area shows error messages of any kind, try doing the
install a second time. You may have had an older version of the update app
itself, in which case a second install should complete the process.
73,
Wayne
N6KR
* * *
K4 SOFTWARE RELEASE NOTES
RELEASE 19
6-23-2021
MAX AF GAIN INCREASED.
MAX VOICE MONITOR LEVEL INCREASED.
DATA MONITOR LEVEL BUG FIX: Previously, the lowest active level (1) was too
loud. Also increased max value.
K-POD SWITCH MACRO PROGRAMMING: In the K4's built-in macro editor, K-Pod
switches now listed as 1 tap, 1 hold, 2 tap, 2 hold, etc.
DYNAMIC RANGE ICON: When MENU:RX Dyn. Range Optimization is set to ON, a new
icon appears to the right of the RIT/XIT box. The icon is a hybrid of the
capital letters 'D' and 'R'.
MORE PROMINENT ADC OVERFLOW INDICATION: In an extreme strong-signal situation,
it is possible to reach the highest voltage allowed by the A-to-D converter. In
this case the S-meter's "+60" label will change to "OVF" until the condition is
resolved. (Previously, the "+" sign in the label simply changed color.) In most
cases you won't hear any change in the receive audio when this occurs,
especially if it occurs rarely. But if it happens frequently, you may wish to
reduce the front-end gain of the affected receiver(s). The K4 can automatically
reduce gain incrementally in this situation; set MENU:RX Auto Attenuation to ON.
EXTERNAL REFERENCE LOCKING NOW MORE ACCURATE: When locked to an external
reference, the K4's VFOs should now be within +/- 1 Hz across the full tuning
range. Previously the reading was slightly high, as much as +5 Hz at 50 MHz
(0.1 ppm).
AGC PULSE REJECT IMPROVEMENTS: Previously, with MENU:AGC Noise Pulse Reject
set to ON, AGC was being modulated by noise and signals under some band
conditions. Now, the pulse reject threshold moves upward in response to strong
signals to prevent this from occurring. Note: In the presence of very strong
continuous noise, turn on the noise blanker. It is highly effective in this
case even at very low settings.
AGC DECAY RANGE EXPANDED: For example, MENU:AGC Decay, Slow can now be set as
low as 5 (very slow).
TRANSVERTER BANDS: Frequency memories and direct frequency entry now support
transverter bands (up to 99 GHz).
SOFTWARE UPDATE: Software update function now handles missing internet
connection correctly. Save/Restore function handles K-Pod macros. Button
debounce improved.
RELEASE 18
6-8-2021
NEW STATUS DISPLAY -- TIME/TX: There's a new option for the status area
display: time (Z) and TX parameters (power and SWR). To select this option, tap
the status area (above the "?" Button), then tap TIME/TX.
TRANSVERTER BANDS: The K4 now has 12 user-programmable bands for use with
external transverters. Transverter bands must be set up prior to use using the
XVTR menu entries. The first XVTR menu entry specifies which of the 12 bands is
being set up. Once setup is complete, you can tap BAND > XVTR > XVTRn to switch
VFO A to a desired transverter band. Tap BAND > HF to go back to the last HF-6
m band. VFO B can be directly set to a transverter band by tapping BSET, then
the BAND button.
DUAL TRANSVERTER BAND RECEIVE: You can receive on two external transverters
simultaneously with a K4D. Set up one to use RX ANT 1 and the other to use XVTR
IN/RX ANT 2.
RX DYNAMIC RANGE OPTIMIZATION: By default, new menu entry "RX Dyn. Range
Optimization" is turned on. This configures the A-to-D converter for best
dynamic range. Turning this off may slightly improve sensitivity. At present
the setting applies to all bands; in a future release it may be settable
per-band.
VFO CURSORS CAN BE MOVED DURING TRANSMIT: If you move the VFOs during
transmit, the associated panadapter cursors will update, even though the
spectrum and waterfall remain frozen.
BUILT-IN KEYBOARD UPDATED: All extended punctuation keys are now grouped to
the right side of the keyboard. A new key has been added for tilde (~) and
single quote (').
FOR SOFTWARE DEVELOPERS: (1) SPLIT is now exited on receipt of and FR0 or FR1
command. (2) Added support for #ARM; #ARA; #AR/;. (3) Added transv
[Elecraft] [K3][K2][K1] Legacy Update, Tuneup, Rescue, Build Services
"W3DVX Rescues Legacy Elecrafts" Hello, Now doing K3 updating mods to legacy K3's. See list of updates you might want at https://elecraft.com/pages/mods-notes-alerts (Click on "Retired Products") Does your K1 or K2 need repair? Tuneup? Want to sell, but it needs some attention before offering it for sale? In addition to tuning your rig, I can also rescue a building project you might have started some time ago. See what my clients have said about my construction and service work at http://www.eham.net/reviews/detail/6768 Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure -- are at https://wilcoxengineering.com/kpa100-in-ec2/ Cheers, Alan Alan D. Wilcox, W3DVX (K2-5373, K3-40) 570-916-9590 (cell, text) http://amazon.com/author/alandwilcox Williamsport, PA 17701 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S and PC Not talking
I took a power surge the other day which wiped out my computer. I’ve replaced the computer, but it and the K3S are not talking now. I’ve made sure RS232 is configured to USB, tried a couple of different USB ports on the PC (which I know are good since they will recognize a flash drive), as well as different USB cables. The device manager list shows two Com Ports: Communications Port (Com1) Intel Active Management Technology - SOL (Com3) Nothing changes when I plug in the USB Cable from the K3 and the K3 Utility cannot find either Port. My gut feel is that there is something wrong on the PC end since the K3 had no problem communicating with the old PC. But I’d like to prove that. Is there some way I can test out the K3 USB? Unfortunately the PC does not have a RS232 connector so I can try that as an alternative. I updated the PC COM drivers but that made no difference. Or perhaps one of you computer guru’s can tell me how to check out the computer COM ports. Any help would be gratefully accepted! Jim W2SM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 80 meter anomaly
All the frequencies lie in the same bin and there will be some, perhaps a lot of, variation in match as the frequency changes. I would first run an autotune at the mid point of all the frequencies. I would then use MAN mode to prevent auto tune on frequency change within the same bin. Autotune can come up with some really bad matches particularly if the transmitter folds back during the tune attempt. KAT firmware can see reflected power as zero with low forward power even if the match is horrible (coupler is low sensitivity) and this makes it believe it has found a good match. 73, Andy, k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 80 meter anomaly
Andy - I had a response from Dick D, and he suggested disabling Recall Tune on QSY in both MAN and AUTO modes. I did so, and the problem stopped ... for a day or two ... but comes back if I operate in MAN mode very long (I normally leave it in AUTO). I am using Counter for frequency info (ICOM). I believe MTM0 and MTA0 would do the same. I have experimented with various FCCS settings in the past - including 5 - and will revisit that. Basically, the KAT does not exhibit the stability it had when new (2 years ago). And I seem to need to go thru this whole process about every 6 months or so. My first step is always to check the antenna system, but that has not revealed any issues. Perhaps aging components are at fault. If there was a test for same, that would be helpful. But the issues are not critical enough for me to send it in for service since it is out of warranty, and who needs to clog up the Mother Ship at this time? 73 Lyn, W0LEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Andy Durbin Sent: Friday, July 09, 2021 6:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KAT500 80 meter anomaly "Is there a Command that would help to alleviate this behavior? Or a way to tell the KAT500 to ignore one or more of its preset frequencies that are causing issues?" How are you telling your KAT500 what frequency to use. CAT, Counter, or both? Is you KAT500 in MAN or AUTO mode? If you are commanding frequency with CAT then FCCS 5; will make the KAT500 ignore counter frequency for up to 50 seconds and stop any toggling between CAT and counter frequencies. Commands MTM0; and MTA0; ought to help but, according to my test notes, they don't work as documented. 73, Andy, k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to l...@lnainc.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WTB: K-POD
Anybody out there who wants to sell his K-POD? Ruined mine today due to stupidity while cleaning up the shack. K-POD was falling on the floor while I was moving a very heavy metal desk and landed right under the foot the moment when I let go of the table. Lesson learned: don't clean up the shack even when the XYL gives a lot of pressure... :-( 73 Udo, DK5YA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KAT500 80 meter anomaly
"Is there a Command that would help to alleviate this behavior? Or a way to tell the KAT500 to ignore one or more of its preset frequencies that are causing issues?" How are you telling your KAT500 what frequency to use. CAT, Counter, or both? Is you KAT500 in MAN or AUTO mode? If you are commanding frequency with CAT then FCCS 5; will make the KAT500 ignore counter frequency for up to 50 seconds and stop any toggling between CAT and counter frequencies. Commands MTM0; and MTA0; ought to help but, according to my test notes, they don't work as documented. 73, Andy, k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
