[Elecraft] Rig control error with K3S and WSJT-X on 30 meters

Over a period of time I've noticed an occasional error when transmitting FT8 on 30 meters with my K3S using WSJT-X. A couple of seconds into a transmit cycle, WSJT-X will display a "Rig control error" box, and I start hearing the rig's modulated audio output on its own speaker. This only

[Elecraft] No bars at all on KX3 digital mode transmit

After not having used my KX3 in a while, today I set it up with a laptop on the front porch to send FT8 in WSJT-X with a new AX1 antenna. I went through the procedure in Don W3FPR's document "Setting Elecraft Transceivers for soundcard digital," setting in and out audio levels on my MacBook

[Elecraft] K3S line out and sidetones

If the K3S is placed in TEST mode for the purpose of CW practice without transmitting, is the CW audio available on the rear panel's Line Out jack? Or can it be sent there via a menu setting? For the purpose of a Zoom meeting, I'd like to send CW practice audio to an external USB audio

[Elecraft] KXBC3 battery charger

I have a KX3 bought new in 2018 that has close to all of the available options with the exception of the KXBC3 battery charger. Until now I haven't paid much attention to this, as I've usually used the radio with a Pro Audio PSU when 110vac is available, otherwise with a Bioenno external

Re: [Elecraft] Anyone received any updates/status of K3 boards etc from Elecraft?

Paul, I've been on the interest list for one of the other options. I emailed Elecraft Support recently asking about status. I got a response a couple of day ago that they are finalizing pricing with their vendor. When that's complete, they will email those on the interest list with information

Re: [Elecraft] Oscilloscope recs

FWIW I use three scopes for different purposes. A Siglent SDS1202X-E is my all-purpose digital scope. There's a large user community, and a lot of info on getting up to speed with it. I like capabilities such as capturing screenprints containing a lot of data overlaying the waveform graphic.

Re: [Elecraft] Sony MDR-7506 replacement pads?

Thanks. Doubled down, and it actually didn't take too long. On 11/9/20 11:41 AM, Grant Youngman wrote: Perserverance …. :) On Nov 9, 2020, at 2:21 PM, Frank O'Donnell wrote: Is there a secret trick for getting replacement earpads installed smoothly onto the headphones? I bought a pair

Re: [Elecraft] Sony MDR-7506 replacement pads?

Is there a secret trick for getting replacement earpads installed smoothly onto the headphones? I bought a pair of Sony pads for my MDR-7506, but try as I might, as I get one side into the groove on the headphone, the other side inevitably slips out. Beginning to get into the realm of the

Re: [Elecraft] Sony MDR-7506 replacement pads?

On 11/4/20 5:52 PM, Jim Brown wrote: They're not the cheapest, but you can buy Sony-branded pads. Search on Sony MDR-7506 replacement earpads. As a retired audio professional, my guess is that any effect will be limited to bass response. Thanks. A couple of reviews I saw of third-party pads

[Elecraft] Sony MDR-7506 replacement pads?

The pads on my nearly ancient MDR-7506's have now officially given up the ghost -- both are long-tattered, and one has come off entirely and refuses to be reinstalled. I've read various messages here on pad replacements for these and other headphones, comments on various pad types including

Re: [Elecraft] KX3 power out

On 7/11/20 8:40 PM, Mark Goldberg wrote: The KX3 will definitely cut way back on power out if it sees a mismatched load or a line voltage drop. I use my KX3 to tune a screwdriver antenna. I normally set the power out to about 3W, but sometimes forget and leave it at 15W. When matched, it puts

Re: [Elecraft] KX3 power out

On the KX3 display, the voltage is 14.3v at idle, 13.8v key-down. At the power supply, 14.5v idle, 14.15v key-down. On 7/11/20 7:51 PM, Brian Hunt wrote: What is the key-down voltage seen on the KX3 display? Measure the regulated voltage at the PS under the same conditions. Is it OK? I had

Re: [Elecraft] KX3 power out

On 7/11/20 1:19 PM, Grant Youngman wrote: As a start, I’d recommend running through TX GAIN calibration using the KX3 Utility … Good suggestion. If a 2-meter module is installed, as is the case with mine, I wonder if the automated calibration using the KX3 Utility flies through all the

Re: [Elecraft] KX3 power out

Always something else I remember just after hitting send. The KX3 is running off the Pro Audio Engineering PAE-Kx33 power supply, plugged into the 9-15 vdc connector. On 7/11/20 12:40 PM, Frank O'Donnell wrote: After a fair time of non-use, today I got out my KX3 and started working through

[Elecraft] KX3 power out

After a fair time of non-use, today I got out my KX3 and started working through configuration checklists. Among other things I thought I'd check the power out. For this test I used a Bird 43 and MFJ-260C dummy load. For HF I used a Bird 2-30 MHz 25w element, and for 2m a 100-250 MHz 10w

[Elecraft] Frequency offset with K144XV?

Today I installed a new K144XV 2-meter module and K144RFLK reference lock board in my K3S. While trying various experiments to put it through some paces, I set the radio up with WSJT-X and configured it to listen for FT8 on 144.174 MHz, after I manually added that frequency to WSJT-X's menu.

Re: [Elecraft] Hum on TX audio w/ CM500 headset on KX3

Thanks very much for the suggestions, Jim -- all sounds like good advice. On 5/10/20 2:24 PM, Jim Brown wrote: > 1) Is what you hear HUM (pure 60 Hz) or BUZZ (harmonics of 60 Hz)? Without routing the KX3's audio out to a soundcard and looking at the waveform(s) on a PC, I'm going to say it

[Elecraft] Hum on TX audio w/ CM500 headset on KX3

For my CM500 headset with the KX3, I referred to Walter Underwood K6WRU's blog posts to order the adapter allowing the CM500 mic plug and a PTT switch to share the radio's mic jack. I also followed his checklist from a second blog post to set TX EQ and mic bias. While adjusting the mic gain

Re: [Elecraft] CM500 headset on K3S and KX3?

so if you make an adapter, you must use a stereo jack so the audio is not shorted to ground. If you make an adapter, you can include a connection for a PTT switch, but without that, you can put the KX3 into transmit with the XMIT button. 73, Don W3FPR On 5/5/2020 7:31 PM, Frank O'Donne

[Elecraft] CM500 headset on K3S and KX3?

Phone newbie here. Any recommendations on off-the-shelf cables or adapters, and a handheld switch, to enable use of a Yamaha CM500 headset along with PTT functionality on both a K3S and KX3? Thanks much, Frank K6FOD __ Elecraft

[Elecraft] Frequency display on P3?

Here's what I'm sure is a beginner question. If I feed an accurate signal from a waveform generator into my K3S, on the P3 it appears right about 120 Hz higher than the actual frequency. This seems to be independent of the mode the K3S is in. What causes that? I noticed this when I had my

Re: [Elecraft] K3/K3S receiver and high-precision frequency determination?

.  Oh well...  Hope that helps...  It is NOT the K3 having an issue with measuring frequency... 73, and thanks, Dave (NK7Z) On 4/24/20 10:11 AM, Frank O'Donnell wrote: Sometime (probably last year) I remember seeing a discussion of why the K3/K3S receiver isn't suitable to do high-precision

[Elecraft] K3/K3S receiver and high-precision frequency determination?

Sometime (probably last year) I remember seeing a discussion of why the K3/K3S receiver isn't suitable to do high-precision frequency measurement tests at the level of hundredths of a Hertz. As I vaguely recall, the receiver is designed so that its frequency actually varies a bit

Re: [Elecraft] Hum on KPA1500

I'm not the OP, but can you remind us what buzz (multiple harmonics of 60 Hz) might signify? Thanks, Frank K6FOD On 4/5/20 4:13 PM, Jim Brown wrote: One question though -- is what you hear HUM (pure 60 Hz) or BUZZ (triplen harmonics of 60 Hz, like 180, 360, 540, etc)?

Re: [Elecraft] Max power for JT9 with K3S 100?

{52 - 54 MHz} The duty cycle for JT-9, 1 minute transmit, 1 minute receive would be 50%.   I frequently run 100 watts on WSJT-X FT-8 with no issues.  Just pay attention to PA temperature.  It should be 60 C or less.   Also this is with FANS in the automatic mode. 73 Bob, K4TAX On 4/3/2020

[Elecraft] Max power for JT9 with K3S 100?

I've been using JT9 mode on 630m this winter with my K3S outputting to an external class D amp. Now I'm interested in trying some JT9 QSOs with some people currently operating on 160m. For me this would mean outputting directly from the K3S (with internal tuner) to the antenna. Given the

Re: [Elecraft] K3S, VOX and WSJT-X?

and click to open the page.  No matter whether you are operating from the transverter mode or the normal antenna, you must have 4 bars solid with the 5th bar flashing on the ALC meter. 73, Don W3FPR On 1/29/2020 9:35 PM, Frank O'Donnell wrote: Bob, First, let me back up and say that I'm operating

Re: [Elecraft] K3S, VOX and WSJT-X?

Rich, I don't think CAT control is necessary in this case, because in this configuration, all of the tx/rx is on one band (630m) and one frequency (474.2 kHz, used by JT9, WSPR and other digital modes, unlike HF bands where they are on different frequencies). I haven't yet found anyone else

Re: [Elecraft] K3S, VOX and WSJT-X?

-- Original Message -- From: "Frank O'Donnell" To: "Barry" ; "elecraft@mailman.qth.net" Sent: 1/29/2020 1:11:53 AM Subject: Re: [Elecraft] K3S, VOX and WSJT-X? Thanks. After I set mine up the same, when I press Tune or transmit in WSJT-X I can see audio goi

Re: [Elecraft] K3S, VOX and WSJT-X?

of the tone that is generated. And, VOX does the rest. Pretty straight forward. It all becomes really clear after your 3rd or so contact. :-) Have fun. 73, Barry K3NDM -- Original Message -- From: "Frank O'Donnell" To: "Barry" ; "elecraft@mailman.qth.net"

Re: [Elecraft] K3S, VOX and WSJT-X?

e. It will definitely rise. 73, Barry K3NDM -- Original Message -- From: "Frank O'Donnell" To: "elecraft@mailman.qth.net" Sent: 1/28/2020 1:22:43 AM Subject: [Elecraft] K3S, VOX and WSJT-X? I've successfully used WSJT-X with my K3S for a fairly long time, usi

[Elecraft] K3S, VOX and WSJT-X?

I've successfully used WSJT-X with my K3S for a fairly long time, using a single USB cable for both audio transfer and CAT control. Currently I'm interested in trying VOX in order to enable running multiple instances of WSJT-X simultaneously on the same band (JT9 and WSPR on 474.2 kHz, if

Re: [Elecraft] K3S glitching on startup

Thanks for the advice. Thankfully, there was a very simple solution. Although I had disconnected the CW paddle, as well as a number of other cables, I couldn't crane my head around enough to notice that I'd left a 1/4"-to-1/8" adapter in the paddle jack on the back panel, which apparently had

[Elecraft] K3S glitching on startup

This evening I used my new K3S for a normal session of FT8 (K3S connected to computer via a single USB cable for both CAT control and audio transfer), then powered it down. When I powered it up later, the following occurred: -- It did not display the normal startup message -- It rapidly

Re: [Elecraft] VERY noisy LCD Monitor. Any Suggestions?

I wish there was a list somewhere of monitors that are currently in production and easily purchasable that are known to be quiet on the RF front. I've used the remediation suggestions offered in this thread, and have found them to help but not cure the symptoms I see. Buying and trying

[Elecraft] Level of K3S audio out to digital apps on Mac

Thanks to everyone for the help getting my new K3S dialed-in to work with digital apps such as WSJT-X and FLdigi on my Mac, with the K3S attached to the Mac by a single USB cable. Overall it's functioning very well now, and I've been working some nice DX. I have one question at the moment.

[Elecraft] K3S and WSJT-X with a Mac?

Probably a FAQ, but I've searched list postings for the past few months and haven't found what I need yet. My new K3S just found its way to my home about 24 hours ago, and at this point I'm trying to get it set up with WSJT-X and a Mac, using a single USB cable between the radio and the

[Elecraft] K3S, DDS/PLL induced drift, and precision frequency measurement

) is one area I'm interested in. Thanks and 73, Frank O'Donnell K6FOD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

[Elecraft] K3S filter for FT8?

. Thanks and 73, Frank O'Donnell K6FOD __ 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

[Elecraft] Choice of signal source for KX3 extended temperature calibration?

stability out of the KX3 as possible. Thanks and 73, Frank O'Donnell K6FOD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

Re: [Elecraft] KX3 and GPSDO?

Thanks, Don. For now I'll stick with plan B (GPSDO inputs to signal generator, the output of which is compared in Spectrum Lab to the signal under study delivered by the KX3). At least until I can save up for a K3S. 73, Frank K6FOD On 5/1/19 4:55 PM, Don Wilhelm wrote: There is no native

[Elecraft] KX3 and GPSDO?

KX3 owner, fairly new ham, interested in frequency measurement ... Am I right in thinking that a KX3 can *not* be slaved to a GPSDO? Thanks and 73, Frank K6FOD __ Elecraft mailing list Home:

Re: [Elecraft] KX3 settings for digital and other modes

and click on the link to the article. There is no sense in setting RS232 to a slower baud rate unless the application software demands it. For voice and CW modes, you want to have AGC on.  TX and RX EQ can be set to whatever your ears like. 73, Don W3FPR On 4/24/2018 4:02 PM, Frank O'Donnell

Re: [Elecraft] KX3 settings for digital and other modes

has better information about signal strength than an audio codec can have. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) On Apr 24, 2018, at 1:02 PM, Frank O'Donnell <vf...@inkbox.net <mailto:vf...@inkbox.net>> wrote: Hi all, new ham here and a KX3

[Elecraft] KX3 settings for digital and other modes

Hi all, new ham here and a KX3 owner for three weeks. In the time I've had the radio, I've used it exclusively for FT8. The first thing I did was to set it up for digital modes using settings from a YouTube video by K5ACL. Specifically: AGC MD: off (default is on) Mike bias: off (default is

Re: [Elecraft] Art of Electronics

Hi all, new ham/KX3 owner/list member here. When this question came up in another forum, one member advised: "The second edition has circuit ideas and examples, where the third edition replaced it with chapter review exercises (more like an academic textbook). I have no interest in the