Re: [Elecraft] KX3 TX/RX antenna changeover relay?
Hi Ian, I bodged together a solution for this, using a modified MFJ-1707. Notes are here: http://www.g0hww.net/2015/02/rx-antenna-switching-with-kx3-wellbrook.html Cheers, 73 Darren, G0HWW On 26/11/2020 11:38, Ian Liston-Smith wrote: > Many of us have separate receive antennas - often active loops etc. - because > out transmit antenna picks up too much noise. Does Elecraft have a changeover > device that switches between the two fast enough not to damage the rx > antenna? Specifically for the KX3? Thanks. > > PS: I have this option for the K2 and it's very useful. > > 73, > > Ian, G4JQT > __ > 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 darren.l...@mac.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] KX3 - range of filter centre frequency in DATA-A mode too limited
Hi, I wonder why the range of centre frequency in DATA-A mode is so narrow. I've recently started dabbling with FSQCall and have some issues optimising the KX3's filter for reception in this mode. FSQCall's waterfall shows the received audio spectrum between roughly 50Hz and 1630Hz, it's modem has a waveform bandwidth of 300Hz with a nominal centre frequency of about 1150Hz. I'd like to set my rx filter passband with a centre of about 1150Hz and a bandwidth of about 500Hz, but this can't be easily achieved. The best I can do is to set the filter fc at 1.28kHz, the bandwidth to 0.65kHz and block some more at the top end of the desired passband by activating the notch filter (which is quite broad) set to 1520Hz. Is there any good reason that the range of usable filter centre frequencies in DATA-A mode is limited from 1.28 to 1.72kHz? A larger range would be much more useful. Cheers, 73 Darren, G0HWW __ 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] Adding a KXPA100 to a KX3 with existing Rx antenna switching arrangements
Hi, I have a Tx/Rx antenna switching arrangement that uses a modified MFJ-1707 switched from the keyline output from my KX3 and uses the ACC2 I/O set to Hi=Inhibit for a safety interlock to protect my Wellbrook Loop. I'm wondering about adding a KXPA100 into the mix. I think that KXPACBL provides the necessary connector breakouts for me to keep the modified MFJ-1707 here with the KX3, whilst installing the linear remotely, connected by CAT6 and coax. The MFJ-1707 will switch between the receive loop and the linear's RF input. I'm hoping that the keyline and ACC2 IO ports connected to the MFJ-1707 will function as they did before the KXPA100 was installed. I will use a computer adjacent to the linear to provide CAT remote control facilities (with Hamlib's rigctld) to the computer adjacent to the KX3. Is this notion consistent with reality? Cheers, 73 Darren, G0HWW __ 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] KX3 feature request - locked menu option for ACC2 IO - for tx inhibit
Hi Wayne co. I have recently been larking about with an MFJ-1707 in the hope of using it to prevent my newish Wellbrook loop from being sent to an early grave by my KX3. I've modified the MFJ-1707 to achieve a closed loop solution triggered by the KX3's keyline output, with the KX3's ACC2 input, set to HI=Inh, driven by an open collector stage shoved into the 1707's Aux contactor output to invert its logic. This solution was preferable to leaving the ACC2 input set to LO=Inh as it was fail-safe in the event of the ACC2 plug coming adrift from the KX3, or in fact any other relevant cable doing the nasty. Now the biggest risk to the loop is if I mis-configure the ACC2 IO menu option. Would it be feasible for this menu option to be locked? I don't expect that there is much call for changing it very often. More waffle about the MFJ-1707 mod can be found here: http://www.g0hww.net/2015/02/rx-antenna-switching-with-kx3-wellbrook.html Cheers, 73 Darren, G0HWW __ 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] Kx3 RxIQ
If you already have gnuradio you could try this https://github.com/g0hww/gr-kx3 Cheers, 73 Darren, G0HWW Sent from my iPhone On 16 Feb 2015, at 14:34, Chris Hallinan challi...@gmail.com wrote: I'm quite interested in experimenting in this area. I've been playing around with SDR via gnuradio with a cheap TV tuner dongle. Can someone please explain the characteristics of the signal coming from the IF Out port on the K3? Is it basically in the audio domain? Is it this connector that would plug into the P3? I'd like to experiment with viewing the signal spectrum using something similar to gnuradio. Brian, how did you connect your KX3 to the iPad? Thanks, Chris On Mon, Feb 16, 2015 at 8:54 AM, Brian Waterworth brian.waterwo...@gmail.com wrote: Yes you can. I used to do this with an iPad (a tablet computer) running iSDR and a piglet connected into the ACC1 jack. I used Hamlog to control the KX3 and iSDR to view the RX I/O. I decided to buy the PX3 (i.e., a specialized computer) instead, though, as its power consumption seems better than the iPad. Plus, flip flopping back and forth between iSDR and Hamlog wasn't helping me be productive. You can never have too many screens :-) Now I use the PX3 as my panadapter instead of iSDR and can still use another computer to control the KX3 (PX3 has a pass through ACC1 jack). On the horizon...I am excited about the Raspberry Pi 2 (on back order) as this platform can support a number of Ham oriented programs I like to use (FLDigi, WSJT-X). Current draw for field work is about an amp-hour and I can use my iPad to VNC into the R-Pi. For field day or more coordinated events, I would just bring a monitor and connect that to the R-PI. regards, Brian VE3IBW On Mon, Feb 16, 2015 at 8:34 AM, Suite, Wayne wsu...@dfwairport.com wrote: Can I use this output to a separate computer as a 2nd receiver while using another computer to run HRD etc? KD5SPX Wayne __ 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 challi...@gmail.com -- Life is like Linux - it never stands still. __ 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 darren.l...@mac.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] ghpsdr3-kx3-server available on github
In case anyone is interested in using QtRadio (i.e. from the ghpsdr3-alex repo on github) with their KX3, I've bodged together the ghpsdr3-kx3-server project on github. I hope someone finds it of use ... https://github.com/g0hww/ghpsdr3-kx3-server A screenshot of QtRadio running with the KX3 can be seen here (not that you can tell that there's a KX3 involved): http://www.g0hww.net/2014/12/ghpsdr3-kx3-server-available-on-github.html Cheers, 73 Darren, G0HWW __ 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] ghpsdr3-kx3-server available on github
Its is RF hell here, although the dBm values and S-meter scales shown in QtRadio are uncalibrated. The NR in QtRadio isn't quite as nice as the KX3's NR with the stereo effect, but the autonotch and tracking notch filters (visible in the spectrum) as green bars seem to be better than the notch in the KX3. 73 HNY, Darren, G0HWW On 31/12/14 23:35, Fred Jensen wrote: Neat Darren. That's quite a noise floor you have there on 80. :-) __ 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] KXUSB with Linux
Unfortunately the ia32-libs package is not available in Ubuntu 14.04 on arch x86_64. This is a bit of a problem for me with my desktop linux computer. I can still use an older version of Ubuntu x86_64 on my laptop with kx3util but that version of Ubuntu is unsupported now and will have to be updated to something more modern very soon. When will a 64-bit release be provided for kx3util? It really is needed now. There's not much point releasing firmware upgrades for radios if you don't update the tools to run with modern OS releases and 32-bit is so 20th century :P Cheers, Darren, G0HWW On 06/11/14 20:23, David Shoaf wrote: Hi Lyn, Nate is on the right track. Here is a list of the required Linux libraries and facilities that must be present and enabled for Elecraft Utilities to operate successfully on that platform. 1) 32 bit vs 64 bit Distributions The Elecraft Utilities for Linux are 32-bit and will not run on 64-bit distros. There are 32-bit compatibility libraries are available that will allow 32-bit apps to run. To install the 32-bit compatibility libraries from a terminal: sudo apt-get install ia32-libs 2) FTP must be installed on your Linux You will have to install cURL if it is not pre-installed. Most distros have it pre-installed, but not all. It is easy to install from a terminal: sudo apt-get install curl 3) Ensure our DialOut groups are set up properly Most users, other than root and members of the dialout group, do not have read/write permissions on the serial port device files. The Utilities cannot access the serial ports if the user does not have r/w permissions. An easy way to set the permissions is to add the user to the dialout group: sudo adduser your username dialout Cheers, David __ 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] KXUSB with Linux
It fails for me with the response: Failed to find/load Framework library libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory I've not figured out how to get a 32 bit version of that package installed. It would be nice if David could provide instructions for using the 32-bit kx3util with Ubuntu 14.04 x86_64 if it is actually expected to work. Darren, G0HWW On 06/11/14 21:01, John Nogatch wrote: On Thu, Nov 6, 2014 at 12:42 PM, Darren Long darren.l...@mac.com wrote: Unfortunately the ia32-libs package is not available in Ubuntu 14.04 on arch x86_64. I am running Ubuntu 14.04 64b, k3util works OK without ia32-libs: jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ uname -a Linux ac6sl11 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ file k3util k3util: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.0, stripped jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ ldd k3util linux-gate.so.1 = (0xf76eb000) libdl.so.2 = /lib/i386-linux-gnu/libdl.so.2 (0xf76ba000) libpthread.so.0 = /lib/i386-linux-gnu/libpthread.so.0 (0xf769e000) libstdc++.so.6 = /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xf75b4000) libm.so.6 = /lib/i386-linux-gnu/libm.so.6 (0xf756e000) libgcc_s.so.1 = /lib/i386-linux-gnu/libgcc_s.so.1 (0xf7551000) libc.so.6 = /lib/i386-linux-gnu/libc.so.6 (0xf73a1000) /lib/ld-linux.so.2 (0xf76ec000) jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ dpkg -l 'ia32*' Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==---= un ia32-apt-get none none (no description available) There are some warnings from the graphics library, some of the colors are not right, but k3util is usable. Most users, other than root and members of the dialout group, ... I find that some udev entries are creating devices with group plugdev, so I have added both dialout plugdev to my groups. -John AC6SL __ 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] KXUSB with Linux
I figured it out. I had to run these commands to install some i836 stuff ... sudo apt-get install libgtk2.0-0:i386 sudo apt-get install libcanberra-gtk0:i386 It seems to work now. Hopefully this info will be useful for those trying to use Ubuntu 14.04 LTS on arch x86_64. Darren, G0HWW On 06/11/14 21:14, Darren Long wrote: It fails for me with the response: Failed to find/load Framework library libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory I've not figured out how to get a 32 bit version of that package installed. It would be nice if David could provide instructions for using the 32-bit kx3util with Ubuntu 14.04 x86_64 if it is actually expected to work. Darren, G0HWW On 06/11/14 21:01, John Nogatch wrote: On Thu, Nov 6, 2014 at 12:42 PM, Darren Long darren.l...@mac.com wrote: Unfortunately the ia32-libs package is not available in Ubuntu 14.04 on arch x86_64. I am running Ubuntu 14.04 64b, k3util works OK without ia32-libs: jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ uname -a Linux ac6sl11 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ file k3util k3util: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.0, stripped jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ ldd k3util linux-gate.so.1 = (0xf76eb000) libdl.so.2 = /lib/i386-linux-gnu/libdl.so.2 (0xf76ba000) libpthread.so.0 = /lib/i386-linux-gnu/libpthread.so.0 (0xf769e000) libstdc++.so.6 = /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xf75b4000) libm.so.6 = /lib/i386-linux-gnu/libm.so.6 (0xf756e000) libgcc_s.so.1 = /lib/i386-linux-gnu/libgcc_s.so.1 (0xf7551000) libc.so.6 = /lib/i386-linux-gnu/libc.so.6 (0xf73a1000) /lib/ld-linux.so.2 (0xf76ec000) jtn@ac6sl11:~/REF/Elecraft/k3util_1_13_8_27$ dpkg -l 'ia32*' Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==---= un ia32-apt-get none none (no description available) There are some warnings from the graphics library, some of the colors are not right, but k3util is usable. Most users, other than root and members of the dialout group, ... I find that some udev entries are creating devices with group plugdev, so I have added both dialout plugdev to my groups. -John AC6SL __ 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 darren.l...@mac.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
Re: [Elecraft] KXUSB with Linux
Thanks for the link. Darren, G0HWW On 06/11/14 21:35, John Nogatch wrote: ... instructions for using the 32-bit kx3util with Ubuntu 14.04 x86_64 ... Re: [Elecraft] How to run linux utilities (K3, KPA etc.) on 64 bit Ubuntu 14.04 https://www.mail-archive.com/elecraft@mailman.qth.net/msg169946.html That is probably the procedure that I followed. -John AC6SL __ 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] KX3 - UHF emissions
Hi Dave, I've have just repeated my measurements of the 7.080Mhz sprog on 398.4MHz and posted some screen-shots on my blog. See here: http://www.g0hww.net/2014/06/kx3-uhf-emissions.html Cheers, 73 Darren, G0HWW On 28/06/14 10:30, Dave wrote: Hi Darren, I have a later KX3, number 5111, with similar options to you, built in ASTU and KX3 hardware, but I don't have the battery charger or additional heatsink options. I built mine from the kit. It was very straight forward but I did buy an anti-static mat first. BTW - I made a mistake in labelling those pictures! The 1st is KX3 off and the second KX3 on. I'll issue an ammendment just in case it causes confusion later. Good luck in tracking it down, I would be interested to see your screen grabs showing the effects that you are seeing between on and off, so that I can compare them to my own results. I'm downloading updated software for the RF Explorer, which may improve the resolution of the pictures. Cheers - Dave (G0DJA) __ 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] KX3 - UHF emissions
Thanks for following up on this Dave, it is really appreciated. At least I know that it's not just my KX3 now. Cheers, Darren, G0HWW On 28/06/14 14:10, Dave wrote: Hi Darren, and everyone else following this... I've found it! Very low level, but by zeroing in on 385 to 386MHz I found a small signal that moves when I tune across 7MHz... At 7.000MHz there's a signal at 385.027MHz (-78dBm) which moves up in frequency, staying at about the same signal level, and is at -78dBm at 385.571MHz with the dial set to 7.010MHz. Unplugging all of the leads appears to make no difference to the signal level. Nor does turning off the backlight or going onto internal batteries. The problem I had yesterday was that there's a lot of much louder signals around 385.9MHz which were masking the KX3 signal. With the dial set to 7.080MHz, and really zeroing in so as to exclude other signals, I found it at 389.419MHz (-75.5dBm) but I would need to go somewhere that excluded the larger external signals to hear it with another receiver. I guess that with an antenna with a bit more gain it might be stronger. I also had to keep resetting the display as it got hidden in much louder signals which did not appear to alter with VFO setting and I wasn't able to tell if they were from the KX3 or from external signals, of course. Dave (G0DJA) - Original Message - From: Darren Long darren.l...@mac.com To: Dave d...@g0dja.co.uk; elecraft@mailman.qth.net Sent: Saturday, June 28, 2014 12:22 PM Subject: Re: [Elecraft] KX3 - UHF emissions Hi Dave, I've have just repeated my measurements of the 7.080Mhz sprog on 398.4MHz and posted some screen-shots on my blog. See here: http://www.g0hww.net/2014/06/kx3-uhf-emissions.html Cheers, 73 Darren, G0HWW __ 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] KX3 - UHF emissions
Hi Dave, Thanks for performing this comparison test. I admit that I found it difficult to perform repeatable measurements, as levels varied by as much as 10 to 15dB due to position and orientation of the rig and cables and my position with respect to the equipment. That is why I chose to provide considered representative figures derived from multiple observations as opposed to precise measurements or screen-shots, but I could provide screen-shots by way of examples if anyone feels that would be really useful. My KX3 is #01685, purchased complete (not kit) with the roofing filter and ATU options, from Waters Stanton in the UK. I fitted the battery charger when it shipped, and have also recently fitted the SideKX end-plates and a VE7FMN CoolerKX heatsink (although as noted before, the issue described pre-dates these retrofits). Your results lead me to hope that my KX3 might be defective and that the problem could be resolved by repair or exchange. I suppose I should order a KX3-PCKT cable set to try in case the official I/Q cable mitigates this issue, but I have tried the 2.5mm to 3.5mm stereo cable that came with my Sennheiser headphones and that didn't seem any better. I look forward to hearing confirmation from Elecraft of whether or not these emissions are considered typical for this build standard of KX3. Cheers, 73 Darren, G0HWW On 27/06/14 11:39, Dave wrote: Here are two more screen grabs for KX3 on and off, but just looking at the frequency range 100MHz to 500MHz. Everything else is the same between the test done earlier. KX3 on https://dl.dropboxusercontent.com/u/65397105/KX3%20Test%2027-06-2014%201122.jpg KX3 off https://dl.dropboxusercontent.com/u/65397105/KX3%20Test%2027-06-2014%201123.jpg I can't see any additional frequency peaks and moving the VFO on the KX3, or changing the band, doesn't appear to make any difference to the display on the analyser. So, I can say that I'm not seeing seeing any distinct frequency spikes, which vary as I tune the KX3 VFO up and down, as Darren is seeing from his KX3. Dave (G0DJA) __ 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 darren.l...@mac.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
Re: [Elecraft] KX3 - UHF emissions
Hi, The #61 ferrite torroids and snap-ons arrived today. I've confirmed that the sproggies I'm receiving in my other radios aren't being picked up in the near field of my KX3 by relocating the entirely disconnected KX3 to the other end of (my admittedly small, terraced) house, and the strength of the spurii remain roughly the same. I've also taken the KX3 upstairs to within 8ft of the discone in the loft and have seen the strength of the same specific sproggy increase by about 20dB. My I/Q cable assembly includes a short adapter with a 2.5mm plug and in-line 3.5mm socket, followed by an inline stereo line-isolator and then on to to the extension cable to the PC (all other connections being with 3.5mm TRS other than the one on the rig). The torroids I bought are Fair-Rite 5961001201, I got 5. I am able to get 2 turns around the torroid with the short 2.5/3.5mm adapter, which when straight is about 6 inches long. Without nothing connected to the KX3, I'm seeing the spur on 389.4MHz at about -68dB, as observed on my USRP using my loft discone. The noise floor is about -80dB. Plugging in the adapter without the 2 turn choke boosts the receive signal to about -46dB. Plugging in the adapter with the 2 turn choke puts the spur at about -65dB, about 20dB improvement than without the choke (how much the bunching of the cable into a small bundle contributes to this I don't know). After connecting up the full compliment of cables and liberally scattering the remaining 4 #61 torroids and 6 snap-ons around the rest of the KX3's own personal rats-nest, the spur is at about -61dB, around 20dB over the noise floor in the USRP (sampling at 125kHz). This is a decent improvement, over the same setup without the benefit of the #61 ferrite, but I think there's still some way to go before satisfaction is achieved. Also, it should be remembered that this is just a spot check on a single frequency. I have good reason to suspect that there are other sproggies related to this fundamental, and then a vast range of other fundamentals to consider, all equally likely to generate some cruft in undesirable places. I have no idea yet how effective the ferrite is at taming the full spectrum of unwanted emissions. I will have time to investigate further over the coming weekend. If there was a way to nail this inside the KX3 box, I would be very grateful. I've often thought that an optical SPDIF interface for the I/Q output would have made sense. Cheers, 73 Darren, G0HWW On 26/06/14 19:07, Wayne Burdick wrote: Dave Lankshear d...@lanks.plus.com wrote: I'd very much like to see a response from Elecraft on this one Hi Dave, It may be possible to further reduce emissions, and we'll post if we have any new information. Some external cable treatments were suggested to the original poster by the world's leading authority on such issues. We added a 60-MHz low-pass filter right at the KX3's output early on, though the current issue isn't related to the antenna jack. A word on design compromises: The KX3 is a very small all-band/all-mode radio with a high degree of integration, intended for lightweight field use. To hit our size/weight/cost targets, we chose to use miniature PCB-mount connectors where practical, and did not go overboard on internal or external shielding. We did use state-of-the-art multi-layer PCB design techniques, which provides a significant shielding effect for RF paths. As a result, the KX3 passed all required tests, and very few of the thousands of KX3 owners have had any issue with emissions. That said, if solutions to specific problems become practical, we will test and document them and make components available. 73, Wayne N6KR __ 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 darren.l...@mac.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
Re: [Elecraft] KX3 - UHF emissions
Hi Dave, Well, the only time that I've specifically investigated one of these spurs, was with my KX3 tuned to 7.080Mhz. The only reason why I've followed up on this one is that I've cleared the backlog of other things to do and figured that I'd try and nail this problem now. I've had the scanners stop on UHF channels whilst operating on most HF bands with the KX3. I noticed the spur (from 7.08MHz) on 389.4MHz, which is a frequency used at RAF Marham. A related spur can be found at 141.6Mhz too. It would be interested to see if you can find anything. I've used my USRP with a whip in the near field to monitor a wider swath of spectrum and can see the spur from 7.08MHz drop down by 160KHz to 141.440Mhz and down by 440kHz to 388.96kHz when I enable the 8kHz shift in the KX3. I watched 8MHz of spectrum and knobulated (there's another one for the dictionary) the KX3's VFO and followed the sprog as it traversed the plot. I slewed the KX3's VFO down to 60m and at some points could see a pair of spurs tracking the VFO. Anyway, I've ordered about £30 of type 61 ferrite which should arrive tomorrow, so I'll see if that gets results. Cheers, Darren, G0HWW On 25/06/14 15:07, Dave wrote: I can back Darren up on this, sprogs and sproggies are common slang words used in Amateur Radio and the Radio/TV industries in the UK to mean spurrious emissions. So, at a typical Microwave Roundtable you might hear someone say Look at the sproggies on that! when connecting the output of an oscillator or amplifier to a spectrum analyser. It can also mean a small child or baby, as in I see she has brought her sprogs with her it was also used in the RAF as a description of a new recruit, possibly putting 'frog spawn' into one word, as the recruit was often said to be 'as green as a frog' as they didn't know much. What frequencies are these emissions on specifically? As I'll get out my portable spectrum analyser and go and look for them on my KX3 if I know where to look. Dave (G0DJA) - Original Message - From: Darren Long darren.l...@mac.com To: K8JHR jricha...@k8jhr.com; Elecraft@mailman.qth.net Sent: Wednesday, June 25, 2014 12:44 AM Subject: Re: [Elecraft] KX3 - UHF emissions Well, I've always thought of sproggies as spurious emissions, i.e. external to the source, whereas I've thought of birdies as internal interference, perhaps like tinitus. __ 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 darren.l...@mac.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] KX3 - UHF emissions
Hi, I've noticed that my pair of scanners often receive strong spurii from my KX3's receiver, in the UHF mil air band. Whilst the spurii can be detected faintly with no cables attached to the KX3, when I attach certain cables, the strength of the spurii increase, most notably the I/Q cable, which causes (what passes for) the S-meter on the scanner to fully deflect. Connecting an antenna to the KX3 doesn't seem to have any effect. The other day I noticed that my scanner had stopped on a locally used UHF channel that was exactly 100 times the frequency in the 80m band that I was listening to. Today I have noticed that listening on 7.08Mhz SSB, my scanners stop on 389.4Mhz, which seems to be the 55th harmonic of the KX3's dial frequency. This is affecting my AOR-8600mk2 and IC-R20. Unfortunately, I've also been developing a hybrid spectrum sensing scanner (called Onsense), that uses a HackRF to sample the mil air band and tune in my AOR-8600mk2 to the strongest signal detected. I find that I am constantly having to add frequencies to Onsense's blacklist as I tune my KX3. This isn't a good situation to be in. I already have a ferrite on the I/Q cable, but that doesn't help. When I enable the 8kHz shift on the KX3, the previously detected spurii goes away. Whether it goes entirely or not, I don't know, it may just shift to another frequency that isn't being scanned. The RX Isolation filter is enabled. Is anyone else having similar problems? Is this normal for a KX3? Is there anything I might try to mitigate this? Cheers, Darren, G0HWW __ 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] KX3 - UHF emissions
Hi Wayne and others, Thanks for the response. Yes, I've tried the KX3 on internal power, with no cables, of any kind, connected, and the sproggy can be faintly heard on my AOR Rx in SSB mode just above the noise but too weak to open the squelch on AM when not wide open. The KX3 is in the living room on the ground floor, and the scanners are using a discone that's about 30ft away in the loft, which is where the sproggy is getting in. At this signal level, I don't think there I would have any problems. However if I connect the RS-232/USB cable to the KX3, the sproggy goes up to around S2. If I instead connect the I/Q cable, it goes up to about S9. Connecting an external key lifts the sproggy a little above the noise, but only by less than an S-point. No other cables seem to have much influence, but I've not tried anything in the Acc2 port. The I/Q output seems to be the biggest culprit by far. The sproggy is very strong in the near field (same scanner on batteries with whip) of the KX3, but much less so via the discone, until the I/Q cable is connected. I'm almost always using the I/Q output from my KX3, so leaving this disconnected isn't really an option for me. My I/Q cable has an isolation transformer about a foot away from the KX3 as the electrons fly and a ferrite clamped to it already. I took one of the scanners out to my HF antenna (after reconnecting it to the KX3), and there was no sign of the sproggy coming out that way. It's a hellish RF environment here, it seems. The whole house is effectively a distributed shack. The scanners cause noise in each other too, or in SDR's that steal their antenna feeds. I am trying to minimise the 'friendly fire', as there's not much I can do about the 'incoming' :P Cheers, Darren, G0HWW On 24/06/14 21:09, Wayne Burdick wrote: Darren, Have you tried running the radio from its internal battery pack, with the external supply disconnected? If that were to cut the emissions, you might consider ferrite cores on the power-supply leads (or other cables). UHF/microwave emissions are a common side-effect of using really high-frequency digital MCUs, DSPs, and the like, which is becoming the norm. We use state-of-the-art multilayer PC boards, and passed all required tests. But to completely eliminate emissions of the type that can activate a sensitive receiver would require a extra pound of sheet metal (shielding), bonding wires, clips, etc. That seemed out of the scope of the product, which is suppose to be small and lightweight. Mainstream desktop radios can afford fully bonded packaging, so they have fewer emissions. Fortunately we've had very few complaints about KX3 emissions, but clearly your shack is an exception. Let me know if the power-supply leads are responsible for some of what you're observing. 73, Wayne N6KR On Jun 24, 2014, at 12:00 PM, Darren Long darren.l...@mac.com wrote: Hi, I've noticed that my pair of scanners often receive strong spurii from my KX3's receiver, in the UHF mil air band. Whilst the spurii can be detected faintly with no cables attached to the KX3, when I attach certain cables, the strength of the spurii increase, most notably the I/Q cable, which causes (what passes for) the S-meter on the scanner to fully deflect. Connecting an antenna to the KX3 doesn't seem to have any effect. The other day I noticed that my scanner had stopped on a locally used UHF channel that was exactly 100 times the frequency in the 80m band that I was listening to. Today I have noticed that listening on 7.08Mhz SSB, my scanners stop on 389.4Mhz, which seems to be the 55th harmonic of the KX3's dial frequency. This is affecting my AOR-8600mk2 and IC-R20. Unfortunately, I've also been developing a hybrid spectrum sensing scanner (called Onsense), that uses a HackRF to sample the mil air band and tune in my AOR-8600mk2 to the strongest signal detected. I find that I am constantly having to add frequencies to Onsense's blacklist as I tune my KX3. This isn't a good situation to be in. I already have a ferrite on the I/Q cable, but that doesn't help. When I enable the 8kHz shift on the KX3, the previously detected spurii goes away. Whether it goes entirely or not, I don't know, it may just shift to another frequency that isn't being scanned. The RX Isolation filter is enabled. Is anyone else having similar problems? Is this normal for a KX3? Is there anything I might try to mitigate this? Cheers, Darren, G0HWW __ 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 n...@elecraft.com
Re: [Elecraft] KX3 - UHF emissions
Hi Jim, Thanks for the informative response. I dug up a fairly hefty blue torroid that a colleague gave me some time ago when I was lamenting about a different RFI problem and managed to get about 8 turns on it. That has made quite an improvement, 2 or 3 s-points at least. I also discovered that if I grasp the left side end-plate handle (I have SideKX end-plates fitted now, but the problem predates their installation) the spurii drops down to a mere S1. I'm not sure what this means yet, though. I'll investigate the ferrite appraoch further. Cheers, Darren On 24/06/14 22:14, Jim Brown wrote: On 6/24/2014 12:00 PM, Darren Long wrote: I already have a ferrite on the I/Q cable, but that doesn't help. The root cause of what you are experiencing is a Pin One Problem at those connectors. They SHOULD be screwed down to the shielding enclosure, but they are not. That's the definition of a Pin One Problem, and it provides a path in and out of equipment for RFI, hum, and buzz. And I've been banging on Wayne for nearly ten years about it. Is there anything I might try to mitigate this? Ferrite cores can help, but all ferrite cores are not created equal. Most widely used ferrites used for suppression, like Fair-Rite #31 and #43, peak around 150 MHz, and are losing their effectiveness at 300 MHz. We can move the resonance down by winding turns, but we can't move it up. For that we need a different ferrite material. For low UHF, Fair-Rite mix #61 is probably the best bet. Given the strength of these spurs, you will likely need several on each cable. A single turn through a typical #61 core resonates around 600 MHz. Two turns would move the resonance down a bit, to perhaps 400 MHz, and would double the choking impedance. Buy the longest cores you can find. See the Fair-Rite catalog, which is online. 0461164281 is 0.25-in id., and should hold at least two turns if the cable is fairly small. And don't overlook the obvious -- can you move the scanner antenna farther away from you shack? 73, Jim K9YC __ 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 darren.l...@mac.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
Re: [Elecraft] KX3 - UHF emissions
Well, I've always thought of sproggies as spurious emissions, i.e. external to the source, whereas I've thought of birdies as internal interference, perhaps like tinitus. Googling finds the following (typed up, not copied, as the source is a scan) from A Dictionary of Slang and Unconventional English, by Eric Partridge: sprog,n other unrelated defs ... 'According to the Home Office, a graver problem than politcal flak are the spurious emissions (known in the trade as sprogs), which interfere with emergency services' (New Society article on pirate radio stations, 19 May 1983, p. 252). Perhaps sprogii is the appropriate plural :) Cheers, Darren, G0HWW On 25/06/14 01:27, K8JHR wrote: On 6/24/2014 7:48 PM, Fred Jensen wrote: I need to add to my UK -- US dictionary: UK=Sproggy US=Spurious emission?? spoggy Sparrow (bird): Spoggies are the most common birds in the residential areas of Broken Hill. Compare spagger, sprag, sproggy. I suspect he means birdie ... i.e., as you guess. More probably from Down Under ... more than the UK... K8JHR = ;;\ __ 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 darren.l...@mac.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
Re: [Elecraft] Elecraft's linux utilities - somewhat OT, or maybe not
Hi, I don't have any 32-bit machines, but 3 64-bit Linux machines. Only one of them seems to be running an old enough distro to have decent support for the legacy 32 bit libraries needed to run the KX3 utility. When I dist-upgrade that machine (which I will do soon) I may lose the ability to run the KX3 utility altogether. I'm hoping that Elecraft will start providing 64-bit Linux binaries very soon. I would be happy to assist such efforts in any way I can. I am sure that there are some reasons why Elecraft can not release the software under an open source licence, so that we can compile it ourselves. I have not yet spent enough time wondering about what those reasons might be to think of a good one, though :P Cheers, Darren, G0HWW On 27/05/14 18:08, Sam Morgan wrote: I have mixed feelings about the recent trend to 'demand' Elecraft release their utility pgms for linux in 64 bit versions, in addition to the 32 bit versions they already release. Here are a couple of thoughts In most of my readings on different radio related forums as well as email groups, IMO the trend for computers used by the majority of hams in their shacks are the of the older 32 bit models. I say that based in part on the hue and cry about having to retire their XP machines and how stressed they are that they will have actually go out and to buy a newer (64bit) computer to use beside their $3k to $5k rigs. g Instead of adding to the Elecraft software guys load by asking them to build tailor made releases, when IMO their time might be better spent working on the coding for the many firmware upgrades we have requested for each of their growing list of products. Maybe some of the more knowledgeable *nix gurus on the list, could contribute a Distro specific howto write up for installation on their favorite operating systems (distros). Send it in and let Elecraft post the info on the pages in a paragraph right below the Linux utility links. === Something like K1JT has done for WSJT-X at the bottom of this page: http://www.physics.princeton.edu/pulsar/K1JT/wsjtx.html quote Linux: Thanks to AC6SL and KA6MAL, packages for v1.1.1 r3520 on Ubuntu 12.04, 12.10, 13.04, 13.10 are available at https://launchpad.net/~jnogatch/+archive/wsjtx Ubuntu Linux installation instructions: 1. If you have not obtained packages from this PPA (Personal Package Archive) before: $ sudo add-apt-repository ppa:jnogatch/wsjtx 2. To obtain the latest version from this PPA: $ sudo apt-get update $ sudo apt-get install wsjtx 3. You should also download kvasd and put it in the same directory as executable binaries wsjtx and jt9. Normally (after running the script /usr/bin/wsjtx once) this directory will be $HOME/.wsjtx /quote === === Or how about creating a PPA (Personal Package Archive) (complete with a how2 use it) and sharing their work with the folks at Elecraft so they can add those links. Like John Nogatch did here: https://launchpad.net/~jnogatch/+archive/wsjtx === === Another good example of what I would like to see, would be the multi distro help links found for Fldigi contributed by other found at the bottom of this page: http://www.w1hkj.com/download.html where you will find links to: quote Puppy / NBEMS How-To-Install RPMS for Open SuSE: Maintained by DL8FCL COPR for Fedora Maintained by Richard Shaw Open SuSE Spec files:Spec File Site Centos Spec files: Index of Centos NBEMS redhat SPECS Debs for Ubuntu: https://launchpad.net/~kamalmostafa/+archive/fldigi How To Install from Kamal's PPA Past versions of software Berlios archives Wiki for fldigi etc. /quote === rant on When I started using linux in 1994 or so, folks didn't go around demanding others do stuff for them, instead they *ask* what they could do to learn how to do it for themselves. In response the more knowledgeable folks ask what they could do to help create how2's so others could learn to do it for themselves. Seems the current batch of linux users have shifted from the point of helping themselves and others, to where they now *demand* _others_ 'do it for us' because they 'owe it to us'. /rant off __ 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] KX3 - RX EQ in DATA-A mode
Hi, I understand from the release notes that back in mid-2012, RX and TX EQ were disabled in DATA-A mode. I'm running with latest stable FW in my KX3 and I've noted that whilst it is not possible to adjust the RX EQ in DATA-A mode, whatever RX EQ setting was dialled in in SSB mode still applies in DATA-A mode, despite the fact that the RX EQ values show as a flat response. For example, on the 50MHz band, which is very quiet, giving a flat noise floor in the audio out, I wound 1.6kHz down to -16dB in SSB mode and observed the trough in the audio FFT spectrum. I then changed to DATA-A mode, confirmed that the RX EQ could not be adjusted, and that it showed a flat response in the rig's interface. Nevertheless, the trough at 1.6kHz remained in the audio output spectrum. This is repeatable for me, and suggests that the wrong set of EQ parameters are being used for DATA-A mode. My other observation is that the audio output seems to drop off at 400Hz in DATA-A mode with PBT FC of 1.5kHz and 4kHz BW, but the audio output in SSB mode can go down below 200kHz with appropriate PBT filter parameters. Is this an anomaly or expected behaviour. It would be nice to be able to receive more digimode signals at the lower end of the pass band in DATA-A mode. Cheers, Darren, G0HWW __ 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] kX3 - firmware update problem - no comms and MCU LD
Hi, I've just tried a firmware update using KX3 Utility rev 1.14.4.11 which failed early on, leaving the KX3 stuck showing MCU LD and KX3 Utility unable to communicate with the rig. How should I proceed? Cheers, Darren, G0HWW __ 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] kX3 - firmware update problem - no comms and MCU LD
Thanks. Somewhat typically, I don't seem to have the library needed for the help viewer to work. I don't suppose you could paste an extract, could you, please? Cheers, Darren, G0HWW On 24/04/14 00:54, Dick Dievendorff wrote: KX3 Utility, Help, Troubleshooting, MCU Load Failure (the page is titled MCU Boot Loader Troubleshooting). 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Darren Long Sent: Wednesday, April 23, 2014 16:53 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] kX3 - firmware update problem - no comms and MCU LD Hi, I've just tried a firmware update using KX3 Utility rev 1.14.4.11 which failed early on, leaving the KX3 stuck showing MCU LD and KX3 Utility unable to communicate with the rig. How should I proceed? Cheers, Darren, G0HWW __ 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 d...@elecraft.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
Re: [Elecraft] kX3 - firmware update problem - no comms and MCU LD
Well, duh. It's just html. I'll show myself out .. Darren, G0HWW On 24/04/14 01:01, Darren Long wrote: Thanks. Somewhat typically, I don't seem to have the library needed for the help viewer to work. I don't suppose you could paste an extract, could you, please? Cheers, Darren, G0HWW On 24/04/14 00:54, Dick Dievendorff wrote: KX3 Utility, Help, Troubleshooting, MCU Load Failure (the page is titled MCU Boot Loader Troubleshooting). 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Darren Long Sent: Wednesday, April 23, 2014 16:53 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] kX3 - firmware update problem - no comms and MCU LD Hi, I've just tried a firmware update using KX3 Utility rev 1.14.4.11 which failed early on, leaving the KX3 stuck showing MCU LD and KX3 Utility unable to communicate with the rig. How should I proceed? Cheers, Darren, G0HWW __ 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 d...@elecraft.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 darren.l...@mac.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
Re: [Elecraft] kX3 - firmware update problem - no comms and MCU LD
Recovery now underway. I suspected that Ubuntu had re-installed Modem Manager during a recent upgrade, which has a habit of mucking with the Elecraft USB UART adapters in the mistaken belief that they are a modem. I reckon that it was that that caused the hiccup, I've uninstalled it (again). Thanks for the help. Darren, G0HWW On 24/04/14 01:04, Darren Long wrote: Well, duh. It's just html. I'll show myself out .. Darren, G0HWW On 24/04/14 01:01, Darren Long wrote: Thanks. Somewhat typically, I don't seem to have the library needed for the help viewer to work. I don't suppose you could paste an extract, could you, please? Cheers, Darren, G0HWW On 24/04/14 00:54, Dick Dievendorff wrote: KX3 Utility, Help, Troubleshooting, MCU Load Failure (the page is titled MCU Boot Loader Troubleshooting). 73 de Dick, K6KR -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Darren Long Sent: Wednesday, April 23, 2014 16:53 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] kX3 - firmware update problem - no comms and MCU LD Hi, I've just tried a firmware update using KX3 Utility rev 1.14.4.11 which failed early on, leaving the KX3 stuck showing MCU LD and KX3 Utility unable to communicate with the rig. How should I proceed? Cheers, Darren, G0HWW __ 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 d...@elecraft.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 darren.l...@mac.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 darren.l...@mac.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
Re: [Elecraft] KX3 - RMS Express USB Data Mode
Hi Keith, I recently noticed something odd with my KX3. I thought that the RX EQ feature was inhibited in DATA-A mode, but it seems that it cannot be adjusted but is still applied. If I set the RX EQ in USB mode, I can still see the adjusted response in DATA-A mode, but I cannot adjust it in that mode. Perhaps this could be related to your issue, Keith? Is this normal? Also, it seems that in DATA-A mode, the audio drops off at about 400Hz (with the PBT with of 4kHz centred on 1.5kHz), whereas in SSB mode, it looks more like 200Hz. I wonder why this is? I would prefer more bottom end in DATA-A mode, I think. Cheers, Darren, G0HWW On 23/04/14 01:08, Keith D Jones wrote: snip So I am totally confused about DATA A mode - using both sound card (Winmor) and TNC. I haven't had the opportunity to play with other digital modes as yet, but wonder whether the DATA A mode is advisable. Am I missing something? Keith, N4KDJ __ 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] auto-tuner needs more radio output to tune
I'm using 1 watt to tune a Z11-Pro. Darren, G0HWW __ 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
