Re: [Elecraft] Chinese ebay amps for KX3
I have gotten the MX-P50M up and running with my KX3 keying it OK. I was able to get over 50 watts out of the amp into a dummy load with 6 watts from my KX-3 on 160 meters. It turns out to be quite simple to configure once I researched how the amp lead was used for keying with the FT-817 and what the KX-3 provided for keying. The KX3 provides keying via the ACC2 connector on the ring terminal on the 2.5mm stereo plug on an adapter cable. The KX3 grounds the key line while transmitting to enable the amplifier to be keyed. All that was needed was a splice into the red/black lead section intended for the FT-817 DIN connector with a red/black lead terminated with a 2.5mm stereo plug. The red lead goes to the ring on the 2.5mm stereo plug. And that is it. This took more time to figure out than I wanted. Obviously, it would have taken less time if there was a manual with the amp. Don, KI4D -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Lawn Sent: Sunday, February 19, 2017 9:46 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Chinese ebay amps for KX3 Has anyone tried the little inexpensive 45 watt amplifiers out of China being sold on ebay with their KX3. I built a BPF for an old Palomar amp but it doesn't seem to work well at all for some reason. 73 Rick W2JAZ __ 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 k...@arrl.net __ 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] OT: Hookup Wire
eBay has 24ga (and others) hookup wire at: http://www.ebay.com/itm/500-feet-stranded-24GA-300V-105C-Wire-Black-H324-00- 500/262315145809?_trksid=p2047675.c15.m1851&_trkparms=aid%3D222007%26alg o%3DSIC.MBE%26ao%3D2%26asc%3D41375%26meid%3D041ed49880c24fcc97b37549ad995d48 %26pid%3D15%26rk%3D1%26rkt%3D6%26sd%3D262315143375 Don, KI4D -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob Novas Sent: Wednesday, February 15, 2017 9:03 AM To: 'Phil Hystad'; 'Elecraft Mailing List' Subject: Re: [Elecraft] OT: Hookup Wire try http://www.therfc.com and http://www.mouser.com/Wire-Cable/Hook-up-Wire/_/N-5ggs/ Bob - W3DK -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Morgan Bailey Sent: Wednesday, February 15, 2017 8:29 AM To: Phil Hystad; Elecraft Mailing List Subject: Re: [Elecraft] OT: Hookup Wire You might think about buying some 8 stranded rotator cable and stripping out the outer bundling insulation. Most likely you might even have a few feet of that in the old junk box. And, You will get 8 colors. Vy 73, Morgan NJ8M On Tue, Feb 14, 2017 at 10:14 PM, Phil Hystad wrote: > Slightly off topic but definitely ham radio oriented and my only ham > radios are all Elecraft gear. > > I am looking for stranded copper hookup wire, say #20 to #24 with very > flexible insulation. I have some of this now, like about 7 inches, > but I need more. I do not know any brand names or even what this is > called. A friend of mine thought it might be the Teflon insulated wire. > > Can anyone suggest some brand names or products that I can search > on-line? Out-of-band responses please to keep this OT topic from > crowding up the forum. > > Thanks, > > 73, phil, K7PEH > > __ > 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 > mbaileyc...@gmail.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 bob.no...@verizon.net __ 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 k...@arrl.net __ 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] "Random wire" vs Buddystick - myth, bias or luck?
Michael - unless you are interested in experimenting regarding this project, I have found the most effective, portable, flexible and lightweight wire antenna system for 20 meters is the PAR-20 EndFedz antenna system from LNR Precision. You can configure it as a vertical, horizontal or slanted antenna. With a portable telescoping pole on a tripod (or thrown up in a tree) it can be set up in about the same amount of time as the Buddistick, and has been more effective in my experience. Good luck. Don Lewis, KI4D -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael A. Wong Sent: Thursday, September 29, 2016 1:01 AM To: elecraft@mailman.qth.net Subject: [Elecraft] "Random wire" vs Buddystick - myth, bias or luck? Hey folks, KX3 and Buddistick owner here. I've been getting a lot of feedback that I would get better performance (more contacts) with a random wire vs my Buddistick. So, while I've noticed that reception is much better with the wire, with the Buddistick, I get 1.1:1 according to the KX3 and have made all my contacts with the Buddistick. Now, recognizing the DIY nature of our hobby might lead people to recommend a random wire over a commercial antenna, if I actually manage to deploy the wire "optimally", should I really see performance equal or outpace the Buddistick? Or am I simply finding bad luck the times I try to get a QSO over a wire? I've tried deploying from a 30' pole sloping down, the hypotenuse of the triangle pointing to my desired direction. I tried deploying 40+ feet between two trees about 12' off the ground. Now I'm going to get a Zebco 202 and rig up my slingshot to deploy vertical. But honestly, I can get the Buddistick up and running in about 3 minutes Mainly, I'm on 20m and maybe I haven't read the right book on random wire antennas, but I would appreciate the group's thoughts. Sent from my iPad __ 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 k...@arrl.net __ 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 beta firmware rev. 2.38: 15 Watts max output on 80-20 m, and PSK63 mode
Howard - I am getting 14.4VDC from the supply on receive. I have not tried transmit. I am just concerned why the updated firmware won't allow display of 15 watts. Thanks for your response to my question. Perhaps I need to upload the beta firmware again although the utility says I have the current version. Don, KI4D -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Howard Hoyt Sent: Monday, February 8, 2016 11:38 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 beta firmware rev. 2.38: 15 Watts max output on 80-20 m, and PSK63 mode Hi Don, Running the new software revision on our development units here (s/n 1403 & 7420), we see 15W output on 80-20M, with the KX3 pulling 2.2-2.5A depending on SWR. The voltage readings below are the average observed on two different KX3s on 40M powered by a Pro Audio Engineering Kx33: Voltage at the DC jack measured on an HP34401A: Rcv: 14.45 VDC Xmit: 14.15 VDC Voltage from the KX3 display PS value: Rcv: 14.1 VDC Xmit: 13.5 VDC The lower readings on the KX3's display are due to the polarity protection diode and other I*R voltage drops /internal/ to the KX3. Elecraft's spec for the 15W power level specifies a supply which can deliver /at the DC power jack/ at least 13.8V at the 2.3-2.5A level needed for 15W output. The PAE-Kx33 design will deliver at the DC power plug 3A at >14.0V, and 4A at >13.9V. If your Kx33 supply is not delivering better than 13.8V at the plug running 15W then please contact us! Cheers & 73, Howie - WA4PSC www.proaudioeng.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 k...@arrl.net __ 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 beta firmware rev. 2.38: 15 Watts max output on 80-20 m, and PSK63 mode
After uploading the new firmware to my SN#01741 KX-3 yesterday, I tried to crank the power up to 15 watts on the dial, and found that 12 watts was as high as it would display on 40 meters. The unit was being powered by Pro Audio Engineering PAE-Kx33. Anyone else have this problem? Don, KI4D -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Saturday, January 9, 2016 12:00 AM To: Elecraft Reflector Cc: k...@yahoogroups.com Subject: [Elecraft] KX3 beta firmware rev. 2.38: 15 Watts max output on 80-20 m, and PSK63 mode KX3 beta firmware rev. 2.38 is now available on our KX3 software page: http://www.elecraft.com/KX3/KX3_software.htm See instructions on this page for loading beta releases. This release includes two new features: The new 15-watt level applies only to 80-20 meters, and is still considered somewhat experimental. Several dozen field testers have been using it with excellent results, but we can't guarantee that every KX3 will actually put out a full 15 W. Supply voltage is one limiting factor. We strongly recommend the use of 13.8-14 V whenever possible. This is especially important when you're driving an external amplifier and using one of the linear modes (SSB, AM, PSK-D, or audio data modes). PSK63 is twice as fast as PSK31. Rather than copy it on the KX3's VFO B display, you may want to use the Terminal function of KX3 Utility, or use a PX3 with text decode turned on. This data mode is especially popular in Europe. Rev. 2.38 also corrects a problem with some KX3-4M (70 MHz) modules that had lower than normal power output. 73, Wayne N6KR * * * MCU 2.38 / DSP 1.37, 01-03-2016 . POWER OUT NOW 15 WATTS MAX, 80-20 M: On 80-20 meters, the PWR control can now be set as high as 15 W (max is still 12 W on other bands). Supply voltage must be over 12.8 V on key-down as indicated by the KX3's voltage display (tap DISP, rotate VFO B). Note: The KX3 will automatically reduce power as required if current, SWR, or temperature is excessive, or if supply voltage is too low. If a band other than 80-20 m is selected, power output will be cut back to 12 W max. It must then be manually set above 12 W after switching to 80-20 m. . PSK63 MODE ADDED: Tap DATA, rotate VFO B until PSK D is displayed, then use VFO A to select 31 or 63 baud. The default is PSK31. . 4-METER POWER OUTPUT IMPROVED: Changed IF band-pass filter configuration to increase drive level on 4 meters. This should improve 4-meter power output in cases where it was marginal due to filter rolloff. __ 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 k...@arrl.net __ 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] O.T Question for the group
Bill - if you are seeking to have those software types run on a tablet, it is better to look for a windows based tablet. iPads run the fewest ham-related software of all the tablets. Don, KI4D -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Ross Sent: Wednesday, October 23, 2013 1:35 PM To: elecraft@mailman.qth.net Subject: [Elecraft] O.T Question for the group Was wondering if anyone can tell me if the iPads will run any ham software such as the Elecraft Utilities and Echolink, Fldigi or digipan? I wouldn’t want to get one and find out I can’t run those programs, so any advice? tnx and 73 Bill, k6mgo __ 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 __ 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
