Re: [Elecraft] STRAIGHT KEY WIRING-KX3

Oops, read that a little closer and I see it now. Thanks for catching that. Usually just use the little paddles myself. On Mon, Jun 10, 2019 at 10:04 PM Don Wilhelm wrote: > Jim and all, > > That is not quite correct. KEY1 is for the 3.5mm jack on the side panel > while KEY2 is for the paddle

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

Easy Use KEY jack on left side of radio. Set in menu to Hand Jey. Wire key to Shield and Tip of a TRS ( Stereo) 3.5 mm plug. Sent from my iPhone ...nr4c. bill > On Jun 10, 2019, at 8:38 PM, Jim H via Elecraft > wrote: > > Hi Gerry,Two things about the straight key. > The isolated contact

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

Jim and all, That is not quite correct. KEY1 is for the 3.5mm jack on the side panel while KEY2 is for the paddle connection on the front (the KXPD3). Check the information in the menu listing description in the manual. 73, Don W3FPR On 6/10/2019 10:32 PM, Jim Rhodes wrote: Actually you

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

Actually you can have either the tip or ring as the active contact. You just need to set either the CW KEY1 or CW KEY2 menu items to HAND for the one you wish to use. CW KEY1 for tip, CW KEY2 for ring. If you use a mono plug of course your only choice would be CW KEY1. Jim Rhodes K0XU On Mon,

Re: [Elecraft] K2 Receive Audio

Wes, The most common cause is that the SSB IF filters are not aligned correctly. Use Spectrogram for a visual indication of the filter passband. See http://www.mmccs.com/mmarc/n0ss/k2_filters_using_gram_v5r17.pdf. You will not be disappointed. If you need Spectrogram, go to my website

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/Using%20a%20Straight%20Key%20with%20the%20KX3.pdf On Mon, Jun 10, 2019 at 19:54 Gerry Miller wrote: > > HI, I AM SEEKING INFORMATION RE CORRECT WIRING OF A STRAIGHT KEY FOR THE > KX3. I HAVE TRIED SEVERAL COMBINATIONS OF THE STEREO PLUG TO NO

Re: [Elecraft] Silent power supply for a K3s

I have twelve RS-35M power supplies and all are completely quiet. - Original Message - From: "Alan Corbeth" To: "Bill" Cc: "Elecraft International Group" Sent: Tuesday, June 11, 2019 12:04:02 AM Subject: Re: [Elecraft] Silent power supply for a K3s I have an Astron RS35 power

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

Hi Gerry,Two things about the straight key. The isolated contact should go to the tip of the stereo plug and the chassis of the key should go to the shield  of the plug. There should be no connection to the ring of the plug.Next check to see if in the Menu, CW key 1 is set to hand.Look at the

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

KEY Jack: This stereo 3.5 mm jack on the left side can be used with any hand key, keyer paddle, or other keying device, as selected by the CW KEY1 menu entry (see Using the Menu, pg. 9). Sent from Mail for Windows 10 __ Elecraft

Re: [Elecraft] STRAIGHT KEY WIRING-KX3

I'm very interested, too.  Also ideas for a decent, attractive, flexible wire to use with my J-38 key. On 6/10/2019 7:54 PM, Gerry Miller wrote: HI, I AM SEEKING INFORMATION RE CORRECT WIRING OF A STRAIGHT KEY FOR THE KX3. I HAVE TRIED SEVERAL COMBINATIONS OF THE STEREO PLUG TO NO AVAIL.

Re: [Elecraft] Silent power supply for a K3s

I have an Astron RS35 power Supply purchased in 1991. There was a period where I didn’t use it for ten years. Now it’s in use daily and so far it continues to be totally quiet. Alan K7FH > On Jun 10, 2019, at 3:56 AM, Bill wrote: > > I have several Power Werx switchers and prefer them for

[Elecraft] KPA1500 Power Supply Fan Noise

More broadly, has there been any progress on reducing the piercing power supply fan noise on the KPA1500 when only using it as a tuner or an antenna switch?  I complained about this a year ago, and I find it completely unacceptable.  No set of noise-reducing headphones that I have tried works

[Elecraft] STRAIGHT KEY WIRING-KX3

HI, I AM SEEKING INFORMATION RE CORRECT WIRING OF A STRAIGHT KEY FOR THE KX3. I HAVE TRIED SEVERAL COMBINATIONS OF THE STEREO PLUG TO NO AVAIL. ANY HELP WOULD BE APPRECIATED. 73 GERRY MILLER, aa...@arrl.net Drink This Before

[Elecraft] K2 Receive Audio

I have a very nice K2 that I bought as previously owned. It works fine on SSB on 20 Meters. The audio from the radio's speaker is low frequency for voice. Sounds good on CW to me, but the SSB tone/pitch is like there is a LP filter cutting off the high frequencies. When I have this situation

Re: [Elecraft] K4 Beta Testers

I'm with Grant here. I'm looking forward to the kit. When I got my K3, I got the minimal kit, buy my XYL wanted the 2M module, so I also got the 13KHz filter. When she saw me working CQP with it at 10 watts into a Little Tarheel antenna on 80M, she took sympathy and said I should get the 100W

Re: [Elecraft] Silent power supply for a K3s

candy cookies,,,bottle of wine Bob On Mon, 10 Jun 2019 00:16:10 -0400 Bert writes: > How would a switched PS take out a radio? > > Bert VE3NR > > > > On 6/9/2019 11:40 PM, Jim - N4ST wrote: > > I don't know how common it is, but eHam lists several failures of > the > > MFJ-4230MV supply

[Elecraft] K3 HI RFI burnout

I have had a tech ticket in with Elecraft for a few days and have had no reply, thats another story and not addressed in this posting.. I was sitting here at the op desk last week and listening to aM broadcast band on one of my K3 and suddenly the HI RFI was on the VFO B display, it was still

[Elecraft] Will swap my K1

Looks like lots of folks are looking for a K1. I have one that I would offer up but would like to get a K2 in return. (Can never have enough K2’s..) Mine is a 4 bander, 7, 10, 14, 18MHz, with Autotuner. Email to kg9hfr...@gmail.com

[Elecraft] K3 and NaP3 v5.6.0

This setup works fine except for 6m where the image rejection goes away. Larry, N8LP says the NaP3 program senses when the radio goes above 48 mHz and changes the I/Q setting to compensate. I've tried several versions of NaP3 and none of them do this on my setup. Am I missing something in the

Re: [Elecraft] K1 boards open source?

Ahh ... very good point, Bob!  I forgot that. I assume crystals can still be had from somewhere, though.  I wonder if Elecraft kept their old stock of them. I'm copying the list on your reply since it was someone else who needed a new board, not me. 73, Dave   AB7E On 6/10/2019 11:09

Re: [Elecraft] Silent power supply for a K3s

Astron has an Over-Voltage protection option that is an add-on accessory. In the past it was an option or included on some models. If the regulation series transistor shorts or the regulation circuits malfunctions, then the over-voltage protection shorts the output and blows the fuse(s). My

Re: [Elecraft] K1 boards open source?

Unless I am mistaken (entirely possible),  all of the K1 band filter boards were essentially the same except for the coils.  I'd bet that there are several unused two band K1 filter boards out there ... the result of owners upgrading to the four band module.  For example, I have an extra

Re: [Elecraft] K1 boards open source?

> On Jun 10, 2019, at 8:57 AM, Douglas Hagerman via Elecraft > wrote: > > Or could Elecraft make a run of bare boards? It should not be too hard to > collect the required parts if the boards were available. The actual problem is that the parts are no longer available. Wayne sent this to the

Re: [Elecraft] KPA-1500 antenna selection

Can you tell me more about the power supply mod for the KPA? The fan noise drives me up the wall (see thread about fan noise on the station PSU, too). Anything I can do to quiet everything down will make me a Very Happy Ham. If I could quiet it down to almost nothing while I'm not running the amp

[Elecraft] KPA-1500 antenna selection

"I'm wondering if it's possible to select the default antenna for when the power to the KPA is switched off? I'd be fine with "last used", and it looked like that was available in the KPA Utilities setting, but as soon as I de-power the KPA, it reverts to ANT-1." If the KPA1500 uses relays for

Re: [Elecraft] Switched PS overvoltage

It's far less likely that a switcher will fail to overvoltage. The switching transistor(s) under stress, and most likely to fail, will just cause the supply to die, as you have observed. Still, I don't like entrusting the life of my K3 to one cheap resistor in the feedback loop. That comes of

Re: [Elecraft] K1 boards open source?

Wayne has already addressed this, not too long ago. They aren't considering opening the K1 not only because of the circuit board layout (copyrighted) but also the IP embedded within the microcontroller. It's dead, Jim. On Mon, Jun 10, 2019 at 12:21 PM Mike Morrow wrote: > What you propose

Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

Gwen, Win4K3Suite does NOT use the same audio libraries as WSJT, it uses native DirectShow. WSJT uses QTAudio. There are some issues with this QTAudio which sometimes prevents proper enumeration of the audio devices. Unfortunately when this happens, driver enumeration gets "stuck" and will not

Re: [Elecraft] K1 boards open source?

What you propose will very likely not be possible. Elecraft has always been very "outside the norm" for contemporary QRP kit makers in NEVER providing PCB trace info for the kits that it sold. It is deliberate company policy. I could have used such info a number of times after I built an

[Elecraft] Switched PS overvoltage

I haven't experienced that a switched PS causes overvoltage. They usually just die! Bert VE3NR On 6/10/2019 11:12 AM, K9MA wrote: On 6/9/2019 23:16, Bert wrote: How would a switched PS take out a radio? Bert VE3NR Most likely due to overvoltage. Linear supplies are particularly

[Elecraft] K1 boards open source?

Apologies in advance if this has been answered before. I can’t find it in the mailing list archives although surely it has come up already. I have recently realized that I “need” a 30 + 17 meter band filter board for my 40 + 20 K1. Obviously I have had 15+ years to make this realization, but

Re: [Elecraft] Silent power supply for a K3s

On 6/9/2019 23:16, Bert wrote: How would a switched PS take out a radio? Bert VE3NR Most likely due to overvoltage. Linear supplies are particularly susceptible, as the series pass transistor is under stress and can short. Switching supplies can fail if the voltage feedback loop somehow

Re: [Elecraft] Erratic tuning on K2

Thanks for pointing out the likely culprits, Don. That's quite a record of repair jobs...it's no wonder you know your way around the K2! I figured it was unlikely to be the encoder but I thought I'd check just in case. 73, Steve VE3SMA On Monday, June 10, 2019, 10:21:10 a.m. EDT, Don

Re: [Elecraft] Silent power supply for a K3s

Any supply that is regulated, whether a switching or linear regulator circuit is used, has the potential to "take-out" the radio because if the regulating circuit fails, the un-regulated voltage which is normally significantly higher than the regulated voltage will be applied to the radio. In a 12

Re: [Elecraft] P3 Noise band

I've seen that "tracking" type spurious display too, especially when using my old 222 MHz or 432MHz MicroWave Modules transverters and also the internal 2M Elecraft K3 unit. 73, Charlie k3ICH -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bob McGraw K4TAX

[Elecraft] KPA-1500 antenna selection

Hi all, I have my HF antenna switch feedline connected to Antenna 1 on the amp, and my 6m antenna (on a separate tower, and a separate physical path outside) on the Antenna 2 port. I don't generally want to run the amp on 6m (only if I can't get through with 100W), but I have to have the amp

Re: [Elecraft] Silent power supply for a K3s

I think that's probably going to be the winner for me if it is indeed silent (or near-silent). Thanks Bob! - pjd -Original Message- From: Bob McGraw K4TAX Sent: Sunday, June 9, 2019 1:57 PM To: Peter Dougherty Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Silent power supply

Re: [Elecraft] Erratic tuning on K2

Steve, It is rare to find a faulty encoder. Those encoders are the optical type and almost never fail. I have seen only one failure in the time I was repairing K2s and I have dealt with over 1000 repairs. I would first reflow the soldering on the encoder wires and Front panel U3 as well

[Elecraft] Quiet power supply for K3, etc

I have 2 Astron RS-35A power supplies for my two K3 radios. They sit on the floor under my desk with the K3 radios on the desk. The only noise they make is when I turn them on and that is standard “shock” due to the inrush of the AC as it powers up the supplies. Otherwise they are quiet. No

[Elecraft] Erratic tuning on K2

One of my K2's has developed a problem where it is (somewhat intermittently) unresponsive to turning the tuning knob. Turning the knob may or may not, at different times, cause the radio to change frequency. Pushing on the case/panels and tapping the tuning knob sometimes seem to help, so I

Re: [Elecraft] Silent power supply for a K3s

I have several Power Werx switchers and prefer them for their size over the heavy analog supplies. Fans are not a problem (actually, I hear nothing from them at all) - IF you design your radio desk for proper equipment placement. Place the power supply at your right hand - and you WILL hear

Re: [Elecraft] KX3 failure of speaker in KX3 #27**

Barry It’s possible an internal connector has become partially loose. Maybe try resetting obvious internal cables. The speaker sometimes cuts out on my KX2 after a battery change which seems to be solved by re-jiggering things. Not very scientific but it might work. Paul M0SNA/W6PNG

[Elecraft] K3: The Audio pop noise when K3 rig is turned ON. Solution?

In the older K3 rigs: What was the old 'solution' to eliminate the initial audio 'pop' when the K3 is turned 'ON' ?? Background: Back in 2009-2010 there was a short list-serve exchange on the topic of the audio 'pop' noise heard when some of the K3 rigs were initially turned on. The noise was

[Elecraft] KX3 failure of speaker in KX3 #27**

Good Morning,                             I would like some help or advice to solve my KX3 speaker problem. My problem is that the speaker is silent, headphones work ok, as a workaround I am using a powered speaker. Looking at the circuit for the audio output I feel that the headphone