[Elecraft] RESOLVED: K3S Speaker sound question

Problem: Speaker distortion/buzzing Solution: Something is loose inside the radio. Background: I purchased my K3S as a kit and assembled per the manual. I was especially careful to not bend or damage the speaker. Normally I listen on my headset and don’t use the speaker. While attending

[Elecraft] WTB: Elecraft K3 200Hz Filter

Looking for one 200Hz 5-pole filters for the Elecraft K3/K3s with an offset of or near -.87. Please email asking price with shipping to me at lladerman AT earthlink DOT net. Lou, W0FK - St. Louis, MO -- View this message in context:

Re: [Elecraft] RESOLVED: K3S Speaker sound question

I think you spoke to Howard, not Harold ;-) 73, Barry N1EU On Tue, Feb 2, 2016 at 1:15 PM, Jerry Moore wrote: > Problem: Speaker distortion/buzzing > > Solution: Something is loose inside the radio. > > > > Background: > > I purchased my K3S as a kit and assembled per

Re: [Elecraft] RESOLVED: K3S Speaker sound question

ACK..sorry!! yes it was Howard. It turns out I had loosened some panel screws to do something and they weren't snug. I still have a harmonic vibration from underneath but only if I turn monitoring up really loud and certain side tone frequencies. The buzzing on the video is gone ;) Operator

[Elecraft] LED bulbs & more

Most of them we use for lighting don't bother my K3. Two in one bathroom do. Especially 15m & 6m. I have both generic & Cree bulbs in use. If there's LEDs made anywhere but China I've not found them. On 15m & 6m it's bad enough I make sure they are off before chasing weak DX.

Re: [Elecraft] Noise from LEDs

It could actually be the LED modules themselves. Many of the cheap foreign LED modules use very cheap components in their drive circuitry. There are very RF noisy and cover a wide bandwidth, The RV industry switched to interior LED modules in the last few years and there have been loads of

Re: [Elecraft] Noise from LEDs

Yeah, Jim said he had actual smoke damage from his going up in flames and used a fire extinguisher. Guess I've been lucky over the years. After finding some brands of CFLs that are don't generate hash across the HF spectrum, I am just starting to experiment with LED replacements as the CFLs

[Elecraft] Is K3/0 Audio pass through or processed in K3/0?

Hello group, I've found minimal information on whether or not the K3/0 actively handles audio from the front 8 pin microphone jack before exiting the rear 1/8" connector feeding the mic input on the RRC Control unit. I can change settings for the K3/0 such as Bias, FP-H/L etc., when disconnected

Re: [Elecraft] Noise from LEDs

Jealous. Transported forward in time, he would have been like a kid in a candy store in the midst of all our technology. Guy K2AV On Tue, Feb 2, 2016 at 7:03 PM, Wayne Burdick wrote: > In California, at least, consumers are converting from incandescents and > CFLs to LEDs so

[Elecraft] Use a hammer?

blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } Hello fellow K3 owners,Unusual thing happened while tuning the internal tuner. It kept seeking the correct combination and

Re: [Elecraft] Noise from LEDs

And it looks like its time to close this thread. Wow, 17 posts in less than 22 hrs. Time to let others recover from the email overload. In general, please self moderate in the future. 73, Eric List Moderator /elecraft.com/ On 2/2/2016 4:30 PM, Guy Olinger K2AV wrote: Jealous. Transported

[Elecraft] K3S schematics

When will the K3S schematics be released? 73, Ian N8IK s/n 10111 __ 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

[Elecraft] help with improving transmit eq

Hi all, I have a newly acquired slightly used K3.  Feedback on my voice audio quality is that it sounds tinny with no low or mid range.  Unfortunately, the K3 manual really doesn't provide much guidance on how to adjust the transmit EQ other than the mechanics of what buttons to push.  If I

Re: [Elecraft] Noise from LEDs

Ron, I have had two CFL’s fail that were well beyond a “puff of smoke”. Both were actually melted and charred black. They were from two different manufacturers. I also have had CFL’s simply quit after a few years, and the base of them was brown from overheating. That is part of the reason why

Re: [Elecraft] Use a hammer?

I'd suggest reseating the KAT3 board or at least doing so partially so the connector surfaces are "exercised" a bit. Another possibility is that one of the connections from the rear panel ANT1 and ANT2 connectors is not properly seated in the mating connector on the KAT3 board. If you've

[Elecraft] APF (audio peaking filter) on the K3/K3S/KX3

Hi all, This morning I was hearing lots of very weak signals in the 40-meter CW band, right at today's noise floor of about S-5. (Among others, I copied BG4GOV in Shanghai.) Many of the signals were not copyable until I turned on APF (audio peaking filter). This filter's center peak is very

Re: [Elecraft] Noise from LEDs

...and I'd add the cheap Chinese LED's are a serious issue. Our garage door opener was randomly working during and after a recent kitchen remodel. After befriending Google, used the KX3 with a snoop loop, and found that switching on either of 2 banks of new LED's generated enough RF to

[Elecraft] SSB shift frequency

Somehow, I have evidently changed something on my K3. When I change from CW to SSB, the FC is 1.75 instead of 1.50, so I have to move it to the left to get it back to 1.50. How do I get it set to 1.50 and stay there on all bands. I cant tell if it is band specific or not. NF8J Paul

[Elecraft] FS: LNR LD-5 Transceiver

For Sale: Compact QRP CW/SSB Transceiver covering 40/30/20/17/15 Meter bands with receive capability on 80/160. Lots of big rig features. See http://www.lnrprecision.com/store/#!/LD-5/p/39885476/category=10468544 for details. Purchased couple of weeks ago. Not used after initial review and

Re: [Elecraft] APF (audio peaking filter) on the K3/K3S/KX3

As a new K3S owner {since last August}, I agree. The APF seems to lift signals out of the noise when otherwise, one would not know they are present. I've used it successfully many times on weak signal QSO's. Thanks for designing a great radio for the ham market. 73 Bob, K4TAX K3S, s/n

Re: [Elecraft] Noise from LEDs

I don't usually chime in on these threads, but not all LED's are culprits. I had originally replaced all the incandescent bulbs in my house with the compact fluorescent (CFL) type. My noise floor went up a couple of dB when any of them were on, so after a couple of those so called "5000

Re: [Elecraft] Noise from LEDs

Also, consider wrapping the PS in Aluminum Foil. That may provide some degree of shielding. On that point, I have two Direct TV receivers that were prone to changing channels, resetting, and such when I transmitted. This was proven to be the broad RF input for the RF remote control portion

Re: [Elecraft] APF (audio peaking filter) on the K3/K3S/KX3

Dang.tnx for the reminder about APF, Wayne --- still getting "comfortable" with my KX3 so forgot about its value while engaged in self-flagellation i.e., operating in the CQ 160 contest last weekend. 72 de Jim Rodenkirch K9JWV -- View this message in context:

Re: [Elecraft] Noise from LEDs

Hi John, Possibly the undercounted LEDs or their power supply are defective and should be replaced. I have about 30 LED light bulbs of various types in my house and I have not experienced any issues with an increase in the noise floor. 73, Bob Nobis - N7RJN n7...@nobis.net > On Feb 1,

Re: [Elecraft] K3 Spur on 160??!!

After reading everyone's posts (THANKS!) and doing a bit more digging, I found this on the reverse beacon web page:http://content.reversebeacon.net/sites/reversebeacon.net/files/users/user3/The%20RBN%20and%20You.pdf About half way down, "Images from mis-adjusted receivers – two spots, same

Re: [Elecraft] Noise from LEDs

That sounds like the CFL failed as it was designed to fail. CFLs draw more current as they age. Eventually the power supply is overwhelmed by the current demand and fails. All the CFLs I've seen use a tiny (1/8 or 1/16 watt) resistor as a fuse. Before anything else gets overloaded enough to fail,

Re: [Elecraft] SSB shift frequency

I am assuming that FC refers to the "FC" in the VFO B display and you are referencing filter center. There is no relationship between CW and SSB centers. Nor is there a relationship between which filter is selected for CW and for SSB. Bandwidth, filter and filter center are independently set and

Re: [Elecraft] Noise from LEDs

I was just thinking that I had removed all of the CFL bulbs from my house, because I hate them, their horrid colour, their slow start up and that they do not last and smoke. Then tonight my wife called me to say that the hall light had stopped working, the last CFL in the house. No smoke, just

Re: [Elecraft] Noise from LEDs

In California, at least, consumers are converting from incandescents and CFLs to LEDs so quickly that planned new power plants will be unnecessary. This is a Good Thing. Home Depot has massive displays of LED bulbs, which are now down to around $3 per (in the FunSize 3-pack). IKEA is even

[Elecraft] Wanted: KAT3

Have you recently upgraded your K3 with a KAT3A Auto Tuner? Dunno what to do with your old KAT3 Tuner? Here's a good idea, SELL IT TO ME! :) Seriously, I'm after a reasonably priced KAT3 in good condition for my K3 #4767 please. I am located in Queensland, Australia and of course I'd love to pick

[Elecraft] KX3 - headphones AND speaker simultaneously?

To do this I bought a portable powered stereo speaker for ipads and used a stereo splitter cable one side goes to headphones and the other to the speaker bye Richard __ Elecraft mailing list Home:

[Elecraft] KX3 - headphones AND speaker simultaneously?

Is there any way to do this? From the B4 Rev of the KX3 Manual, on page 5, this seems precluded. Some context: I was doing a SOTA activation earlier today, and my wife joined me on the hike. I was recording the audio with a small voice recorder from the headphone port, listening using the

Re: [Elecraft] K3 Spur on 160??!!

In this case it looks as if the AC0C has a simple SDR with an I/Q balance problem. In both cases reported the "spur" is equal distant on 1,842.65 KHz. 73, ... Joe, W4TV On 2/2/2016 12:46 AM, Wayne Burdick wrote: "Milt -- N5IA" wrote: Mike, From my remote

Re: [Elecraft] PIGREMOTE and other questions for the group

Hi Mike, what about the CW please? Can you comment a bit the CW operation using the PigRemote as I am interesting in the connection to K3. Many thanks, 73 - Petr, OK1RP - http://ok1rp.blogspot.com -- View this message in context:

Re: [Elecraft] Noise from LEDs

Hi, Jim is correct, replace it...  I had a neighbor, and I had several ferrites on it, all with many many turns of cable, and got very little positive result, replacing it gave me a positive result...  :)   Those things generate a horrendous amount of RFI, and the power cables to the lights are

[Elecraft] K3 Turn on problem

A few weeks ago, I turned on my K3 and all looked normal except that I could not hear any signals or band noise on 160M. I recycled the power switch and heard what sounded like an AM broadcast station, but the tuning knob had no effect. I could not tune anything. (That was weird!!) Another