Re: [Elecraft] For Sale - "K-line" Covers

The covers have been spoken for. 73 de K6SBA David in Santa Barbara, CA OhK4 #906, Yeah Baby!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] K1 and KX3 for sale

Good evening all, I have both a K1 and a KX3 for sale. Please reach out for details. Thanks! Randy KE8JWB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] For Sale - "K-line" Covers

Dave- I’ll take them. Ed McCann AG6CX Sausalito > On Aug 24, 2022, at 5:53 PM, David Inger wrote: > > Recently I sold my K3 and P3 to partially fund my new K4. I have set of > barely used covers that are in excellent (dare I say new?) condition. The > way I ended up arranging my equipment

[Elecraft] For Sale - "K-line" Covers

Recently I sold my K3 and P3 to partially fund my new K4. I have set of barely used covers that are in excellent (dare I say new?) condition. The way I ended up arranging my equipment there was very little need to cover the various pieces. The covers were made by Pat Osborne, KI4RFT. They

Re: [Elecraft] Lighting

The current can be an issue, though if you have anything metallic in your hand.  Solid state linear power supplies are basically arc welders. 73, Dave  AB7E On 8/24/2022 4:52 PM, jerry wrote:    One of the most endearing things about my solid state linear projects is that there's

Re: [Elecraft] KX3 and its "TUNE" selection. (With mag loop)

On 2022-08-24 16:19, Fred Jensen wrote: Tuning on most mag loops is very touchy, and more so on lower frequencies, because of the extremely high Q.  My Alexloop has a reduction gearbox on the capacitor, *** What kind of motor does it have? I've been planning to use a stepper, controlled by a

[Elecraft] Lightning

Snow static and rain also can generate a nice charge. Saw that in the 60’s had a long wire not connected to my sx-99 rcvr and end laying about 1-2 inches from chassis and drawing a nice blue arc btw them. This was in winter and snowing. 73 john Sent from my iPad

Re: [Elecraft] Lighting

On 2022-08-24 14:23, David Gilbert wrote: Several years ago before my house was fully completed, I had my coax lines disconnected but just lying on the concrete floor of the room I had my ham gear in.  I usually had those lines terminated in a short, but one day as a storm was approaching (it

Re: [Elecraft] KX3 and its "TUNE" selection. (With mag loop)

Tuning on most mag loops is very touchy, and more so on lower frequencies, because of the extremely high Q.  My Alexloop has a reduction gearbox on the capacitor, and I wish it had 3 times the reduction it has.  I doubt you could get close enough with a motor-driven cap to a preset position.

Re: [Elecraft] Lighting

While we're on the subject of huge amounts of static electricity, I've posted this before but it is important [see text]:  Precipitation static ... rain, snow, and even dust ... can kill your radio, and it will do it with no rumble, flashes, sparks, and crashes.  On the panadapter, it will

Re: [Elecraft] Problem with KAT500 firmware v. 2.05

Bill, Please post your results between the two KAT tuners. If it is a software issue, perhaps going back one version might be on the table. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical

Re: [Elecraft] Problem with KAT500 firmware v. 2.05

"Also, which should be obvious, the KAT500 is trained on each band and acts appropriately with V1.75. Why it doesn't with V2.05 is currently a mystery. " No, it was not obvious to me that you had trained all of each band. I had the impression that you had trained only the FT8 frequencies in

Re: [Elecraft] Lighting

Several years ago before my house was fully completed, I had my coax lines disconnected but just lying on the concrete floor of the room I had my ham gear in.  I usually had those lines terminated in a short, but one day as a storm was approaching (it was still at least five miles away) I

[Elecraft] Lighting

Working at Collins in the 60’s we had a lab with no windows but we did have 18 foot vertical antennas on the roof. We would have NE2 neon bulbs connected to the RF coax feed lines and when thunderstorms were within 5 miles they would start to flash. We all then went out to the parking lot and

[Elecraft] KIO3 failure mode

Many faults occur via the station ground system.  This fault indicated a difference in potential between the station ground and the AC Mains ground.  In many cases, the station equipment is connected between station ground and the AC Mains ground.   The nearby lightning strike produces a

Re: [Elecraft] Subject: Re: [K3] KIO3 failure mode

On 2022-08-24 12:27, Dr. William J. Schmidt wrote: I worked with a guy at Honeywell who was trained in atmospheric discharges in his graduate work at MIT. *** And I once worked for a little company that made railroad equipment. Our devices sat by the railroad tracks and monitored passing

Re: [Elecraft] Problem with KAT500 firmware v. 2.05

Bill - The good news is you're working with The Best. Dick, K6KR, is The KAT500 Guru in my book. He's the one who steered me to v2.05 when it was still Beta and together we figured out how to adjust it to solve the very problem you're experiencing. As I said, v2.05 is even less interested

Re: [Elecraft] Subject: Re: [K3] KIO3 failure mode

On 8/24/2022 12:10 PM, Bill Mader wrote: A recent article in QEX talked about avoiding cable loops (not antennas) in the shack during lightning storms. Although I subscribe to QEX, I haven't seen that piece. HOWEVER -- I strongly concur with W8JI that the best strategy is proper BONDING, not

Re: [Elecraft] Subject: Re: [K3] KIO3 failure mode

Pretty sure I said I had everything disconnected from the K3 except for the RS-232 link to the laptop.   What part of that do you want to contest? And now I disconnect that as well. Dave   AB7E On 8/24/2022 12:10 PM, Bill Mader wrote: Having the laptop charger connected to AC and the KIO3

Re: [Elecraft] Subject: Re: [K3] KIO3 failure mode

Lightning seems to me the topic on all of the groups currently... so we must be in storm season! I worked with a guy at Honeywell who was trained in atmospheric discharges in his graduate work at MIT. I guess Honeywell was looking into survival of military equipment at the time. He knew I

Re: [Elecraft] [K3] KIO3 failure mode

That's about on par with the "non-magnetic mattresses" I used to see being sold to "prevent disturbance of the earth's natural magnetic field while you sleep." All of this is pretty much economic Darwinism. 73, Dave   AB7E On 8/24/2022 11:27 AM, Walter Underwood wrote: You could get one

[Elecraft] Problem with KAT500 firmware v. 2.05

Andy and Len, Yes, V2.05 DOES ignore a configuration with solutions that work in V1.75. I have used both versions and tested them again for Dick, K6KR, with whom I am working. He has the trace log showing the problem along with the same configuration file that works for V1.75 and not for V2.05.

Re: [Elecraft] KX3 and its "TUNE" selection. (With mag loop)

Magloops with effective remote tuning are very pricey but those are not (as far as I know) automatic tuning, just remote) With a tiny bit of practice, it’s not hard to do manually. I give it almost no thought. To simply have a mag loop go to the perfect spot of resonance in response to

[Elecraft] Subject: Re: [K3] KIO3 failure mode

Having the laptop charger connected to AC and the KIO3 connected to the laptop is NOT having everything disconnected, Dave. This has been discussed here numerous times and Elecraft warns us each spring to reduce their revenue while saving us from frustration. A recent article in QEX talked about

Re: [Elecraft] [K3] KIO3 failure mode

You could get one of these “router EMF guards". Tinfoil hat is optional. Do not click on this if stupidity makes your brain hurt. https://smile.amazon.com/dp/B07MXD75TR/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) >

Re: [Elecraft] [K3] KIO3 failure mode

What Dave said.  Almost identical here. Now, during t-storms, the K3 is a box sitting on the desk with _nothing_  repeat _nothing_ connected.  If I thought wrapping it with tinfoil* would help... cln - Nick WB5BKL Lake Buchanan, TX *  One of my neighbors has a plentiful supply. On

Re: [Elecraft] KX3 and its "TUNE" selection. (With mag loop)

Hi Jerry, That's absolutely possible over the serial port (ACC1)! The Programmer's Reference has the details: https://ftp.elecraft.com/K3S/Manuals%20Downloads/K3S%20Pgmrs%20Ref,%20G5.pdf 73, Julie On Wed, Aug 24, 2022, 12:49 jerry wrote: > I'm starting work on a magloop project. I wonder

Re: [Elecraft] KX3 and its "TUNE" selection. (With mag loop)

I'm starting work on a magloop project. I wonder how hard it would be to have a transceiver tell the magloop what frequency it's tuned to? That could operationally be simpler than having to hit it with low-power RF so it can tune itself... - Jerry, KF6VB On 2022-08-23

[Elecraft] Problem with KAT500 firmware v. 2.05

"The question is why does V2.05 appear to ignore what should be memorized tuning solutions?" V2.05 does not ignore memorized solutions. I wonder if V2.05 is selecting an adjacent "bin" that you had not tuned and memorized with V1.75. There was a change in bin boundary frequencies in V2.05.

Re: [Elecraft] Problem with KAT500 firmware v. 2.05

Bill - Over 5 years elapsed between v1.75 and v2.05. In that time, many changes were made including several that relate to frequency adjustment and precedence of transceiver data (which Icom does not supply) over counter data. It would seem logical to "teach" the KAT500 your frequency