Re: [Elecraft] K2 receive problem

I would suspect a bad relay associated the 40m lowpass filter -- or a bad solder connection to one of those relays. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco On 21/06/2024 3:55 pm, Jos Weitenberg wrote: I have the following problem with my K2, when I

Re: [Elecraft] Electaft K4D

__ 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: ht

Re: [Elecraft] Ameritron 240V inrush limiter: any benefit on a KPA500?

__ 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: ht

Re: [Elecraft] K2 For Sale

I saw the subject and thought "who would sell a K2?" They would have to pry it out of my... etc. Then I saw that it belonged to an SK. That's when mine will become available. Not before. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 09/02/2020 19:11

Re: [Elecraft] RFI issues

One thing to try is an old-fashioned lowpass filter, such as used to be common as a measure against TVI. If the problem is caused by the TV/FM signals, this should help. The K3's t/r switch can be overwhelmed by massive signals. I had such a problem with a 50 kW AM BC station that's visible fr

Re: [Elecraft] RFI issues

Not so fast. The K3's T/R switch can be overwhelmed by very strong signals. The result is intermod junk all over the bands. This happened to me with a 50 kW AM BC signal at about 1000 kHz that is line-of-sight to my antenna. I don't see why a super-strong VHF signal couldn't have the same effec

Re: [Elecraft] 75ohm Impedance question K3S and Antenna side.

I don't think you need a unun because the additional loss due to SWR running RG/6 at 2:1 is only 0.381 dB, and the unun itself would certainly have some loss. But the loss in 200' of RG/6 even at 1:1 is about 2.9 dB! That is almost half your power. RG/8 would have only 1.9 dB loss, and with a pr

Re: [Elecraft] 75ohm Impedance question K3S and Antenna side.

Forgot to add: I used 28 MHz for the calculations in my previous email. Losses will be lower on lower bands. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 31/03/2020 19:39, ae...@carolinaheli.com wrote: I'm about to pull the trigger on a Hustler 6BTV

Re: [Elecraft] KPA 500

I would be more likely to suspect something after the KPA500, such as the tuner or a balun. I've experienced significant balun heating, especially when using a balun other than a straight-through 1:1 balun, or when the load is highly reactive. Balun power ratings assume a non-reactive load. 7

Re: [Elecraft] KPA500 problem

Wow, that is neat! Very impressive. Are you going to make one for the various audio and control circuits as well? I chose to place my operating desk two feet from the wall. I refer to the area behind it as the "cable vault." This solution is cheap in terms of money and effort, but very expensi

Re: [Elecraft] What's the best method to send high speed CW?

By computer? Winkey USB. Hands down. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 18/04/2020 16:27, ae...@carolinaheli.com wrote: What's the best method to send high speed CW with a K3S via Computer? Serial adapter to the Key port or software via USB

Re: [Elecraft] K4

I am line-of-sight to a 50kW AM transmitter (at least one, maybe more co-located at the site). I was using a vertical antenna, which was very good at picking up AM BC signals. I had a problem that the plentiful RF overrode the bias on my K3's T/R switch diodes, causing IMD all over the lower b

Re: [Elecraft] Elecraft K3s, etc. bonding

I use thin, flat, copper strips. I use a paper punch to make neat holes in them. You can stack a whole bunch of them on a terminal. They are a little fragile, but you don't have to mess with them often. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 23

Re: [Elecraft] OT: The Colpitts mystery

Mine was the push-pull triode RF amplifier (not "linear"!), making sure to show the neutralization circuit. They didn't want any high-powered self-excited oscillators on the bands! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 27/04/2020 21:03, Fred J

Re: [Elecraft] OT: The Colpitts mystery

__ 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: ht

Re: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT)

Finkleman's keys in New York were like that, too. I remember trying to adjust mine. He must have used a pipe wrench to tighten them down. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 01/05/2020 5:30, Fred Jensen wrote: The 2T and Extra were both penci

Re: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT)

me. Just curious. How or why would anyone know, let alone remember the name of their FCC examiner. Seems rather strange to remember someone after such a very short encounter more than 30 years ago. Eric KE6US On 4/30/2020 9:58 PM, Victor Rosenthal 4X6GP wrote: Finkleman's keys in New

Re: [Elecraft] Windows Needed

Apple breaks it's OWN hardware when it wants you to buy a new computer. I have a Macbook Pro from 2009 which won't run the latest MacOS. The Macbook is still in very good condition, so I installed Ubuntu Linux on it. It's like a new computer. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CW

[Elecraft] [OT] dumb question about oscilloscope probes

I like the way scope probes have a tip that hooks onto a component lead, and a little alligator clip for the ground. So I thought I could use a passive scope probe in the X1 position on my DVM too. I hooked one up with a BNC-bannana adapter, but it turns out that there seems to be a series resi

Re: [Elecraft] [OT] dumb question about oscilloscope probes

istance is coming from and what it is for (TLDNR - it's for suppressing ringing of 1:10 probe at high frequencies where the cable of the probe starts looking like a transmission line). http://www.dfad.com.au/links/THE%20SECRET%20WORLD%20OF%20PROBES%20OCt09.pdf On Mon, May 4, 2020 at 6:48 AM V

Re: [Elecraft] KX3/KX2 remote for FD

__ 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: ht

Re: [Elecraft] New K4 feature: Dual APF bandwidths (audio peaking filter)

I use the APF in my K3 all the time. The wide base with a sharp peak are very helpful for CW intelligibility. I would like the peak to have a little more gain, though. Maybe it could be adjustable in the K4? 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ O

Re: [Elecraft] New K4 feature: Dual APF bandwidths (audio peaking filter)

I didn't mean "all the time" as "whenever I operate." I meant "a great deal of the time." Sorry for the exaggeration. It's one of my favorite features. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 16/05/2020

Re: [Elecraft] K4 Kit???

Or you can do what I did with my K3: burn up a static drain resistor on your antenna entrance panel, decide that the smell is coming from the K4, take it completely to pieces to try to find the burned component, and then -- after discovering what actually happened -- put it all back together again

Re: [Elecraft] K2 distorted audio on certain freq.

The "weird at one frequency" is a known issue and there is a fix. See Also 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net

[Elecraft] K3 QSK Timing

I have finally achieved one of my life goals and am the owner of a real digital oscilloscope (Siglent SDS1202X-E). What is great about this compared to my prior life with super-cheap n-hand scopes is that it can actually measure things. So the first job I gave it was to measure the time betwee

Re: [Elecraft] K3 QSK Timing

Well, that is probably how Elecraft came up with the published spec of 8 ms. But since what I'm concerned with is preventing hot-switching, my number is more useful. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 02/06/2020 19:39, Al Lorona wrote: Re

Re: [Elecraft] K3 Spontaneous Failure

I would definitely try pulling the front panel off an then reinstalling it, possibly with a few drops of Deoxit on the pins. It isn't difficult at all, and I think it's worth a try. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 06/06/2020 7:33, Jim Mc

Re: [Elecraft] K3 Spontaneous Failure

Good advice. Don't do EEInit unless you are sure you have a good configuration backup. Given the state of the radio now, doing a backup might not give you good data. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 06/06/2020 17:32, Bob McGraw wrote: Su

Re: [Elecraft] Key Clicks

Correct. But if you are hot-switching at all, even only on the first element, you risk damage to the amplifier and the transceiver. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 07-Jun-2020 02:55, N4ZR wrote: There's a big discussion going on in conte

Re: [Elecraft] Key Clicks

In fact, it's closer to 5-6 ms when set to 8. And of course it depends on the amp. A general rule to "set it to 9" is silly. It just has to give the relays time to settle down. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 07-Jun-2020 04:00, David Gi

Re: [Elecraft] [OT] Birds and DX

Owls don't work unless (maybe) you can mechanize it so that the wings flap and it hoots. I have a roof with pigeon issues, and the only thing that works is to make the surface unattractive to them. If there is some way you could attach spikes to the top surfaces... maybe superglue broken glass

Re: [Elecraft] WG: K3 working on motorboats - possible

Peter, One possible solution is a fiberglass vertical antenna (6m or more if possible) and two shortened radials. The radials can be as short as 0.10 wavelength at the lowest frequency, which might allow you to position them fore and aft on the boat. Naturally, you should make sure nobody can

Re: [Elecraft] K3 on motorboat.

BS alert! Their slogan should be: "If you can afford it, you can violate the laws of physics." No, you can't. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 10/06/2020 2:27, Michael Chowning wrote: Aesthetics, yes. Cost? Gulp! https://advancedhf

Re: [Elecraft] K3 on motorboat.

Probably Nigeria. Here is a patent for something: 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 10/06/2020 15:18, j...@kk9a.com wrote: Where is this company?  I dd not see any information about them

Re: [Elecraft] stripping insulation from enamel wires

Note that there is enameled wire that can't be stripped this way. The enamel is heat-resistant. Of course if you are using the wire that comes with Elecraft kits, you shouldn't have this problem. What I do is put a blob of solder on the tip of the iron. Then, I hole the END of the wire, which

Re: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush

I certainly hope the clicking I hear on the sidetone is an artifact of the recording process, or something that will go away with the production version of the K4! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 23/06/2020 12:41, Bob Wilson, N6TV wro

Re: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush

Oops, sorry, I listened to the recording before reading the message! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 23/06/2020 16:23, Victor Rosenthal 4X6GP wrote: I certainly hope the clicking I hear on the sidetone is an artifact of the recording

Re: [Elecraft] K4 Question

Well, that would certainly be enough for me. I have two loud line-of-sight neighbors, but they don't hit +10 dBm. Unfortunately they have "dirty" transceivers, so it doesn't matter. I suppose I should buy them K4s. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/

[Elecraft] Very dumb mistake

Senility. I was trying to repair my KRC2, which had a damaged voltage regulator and one of the driver chips. I put the new regulator in backwards (yes, I did this) and as a result applied about 10v to the 5v microprocessor. Now the voltage readings at the processor pins are very different from

Re: [Elecraft] Confessions of grounding

My shack is only about 6m below my antenna, and although there is a concrete roof between us, I had problems of RF pickup in my computer. My antenna is balanced, I used a lot of ferrites on the cables, and bonded all of the equipment together with copper straps. But the biggest improvement came

Re: [Elecraft] Stupidity vs Absentmindedness - Was: Killed the KPA500 :)

__ 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: ht

[Elecraft] Wish I had a KAT1500

I am using an older Palstar AT-Auto automatic tuner. It has a coil and capacitor operated by stepper motors. When it works, it's fine; but it requires a lot of maintenance and fiddling. What I need is something that works as well as the KAT3 in my K3; quick, trouble-free, and good for a 10:1 SW

Re: [Elecraft] Wish I had a KAT1500

1500 watts, but at an SWR of only 3:1 - that is the same as the ATU in the KPA1500 can handle. At lower power (its rated power of 500 watts) the KPA500 will tune a 10:1 SWR. 73, Don W3FPR On 11/27/2018 10:32 AM, Victor Rosenthal 4X6GP wrote: I am using an older Palstar AT-Auto automatic tuner

Re: [Elecraft] Wish I had a KAT1500

ssage- From: elecraft-boun...@mailman.qth.net On Behalf Of Victor Rosenthal 4X6GP Sent: Tuesday, November 27, 2018 1:43 PM To: donw...@embarqmail.com; Elecraft Reflector Subject: Re: [Elecraft] Wish I had a KAT1500 My somewhat unique antenna system presents SWRs up to about 8:1 on some bands

Re: [Elecraft] KPA-1500 issues

There IS a reason to be fanatical about a 1:1 SWR, although it doesn't apply to an amp like the KPA1500. If you are running a tube amplifier that requires tuning, and the tuner always provides the identical load, you can tune the amplifier once, record the dial settings, and quickly reset the

Re: [Elecraft] K3S will not load or tune on 160 M

Rich, Don't forget that the ANT1/ANT2 selection in the K3S is per-band. Make sure the correct antenna is selected. That SWR reading sounds like there is no antenna connected. As they always say, don't ask how I know this! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://ww

[Elecraft] Tuners and spurious responses

I just replaced my single-ended T-network tuner plus balun with a massive old Johnson Matchbox. It is very selective, unlike the T network. It is as if there is a sharp bandpass filter between the antenna and the rig. This may be totally imaginary, and there's no easy way to A/B test it, but

Re: [Elecraft] WHY NOT 700HZ FILTER FOR K3/K3S?

__ 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: ht

Re: [Elecraft] OT: USPS mailing

1. In the US, USPS priority mail is great. If you are sending something outside of the country it is out of USPS' control at the foreign airport. This is where the fun begins. In Israel, our postal service adds at least 2 weeks to get a package through customs, and you don't know where it is or

Re: [Elecraft] KAT 500 and open wire

I've been using an open-wire fed rotary dipole that is a halfwave on 20 meters on all bands from 40 through 10 meters for the past 4 years or so. The feeding/matching system has gone through various iterations, but now uses homemade open-wire line of no. 12 wire (2 mm) spaced 4.5 inches (11.4 c

Re: [Elecraft] ERR TXF

This error is caused by selecting a filter other than the 2.8 or 2.7 kHz filter as the transmit filter. Use CONFIG:FLTX to select that filter for CW/DATA/SSB. (Except if you have FM (13 kHz) or AM filters (6 kHz) you must select those filters in the FM and AM modes). 73, Victor, 4X6GP Rehovot,

Re: [Elecraft] Slightly Unbalanced dipole?

I agree. And I maintain that the problem is exactly the same with the common solution of a single-ended tuner feeding a balanced line through a balun. If there is a big mismatch the choke will get hot. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 14

Re: [Elecraft] Battery Low K3

My K3 is serial no. 0007 and the clock is still running on the original battery. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 15/01/2019 19:37, Keith Trinity WE6R wrote: If you don't use the clock, just take the CR2032 battery out! Save money and eas

Re: [Elecraft] Non-Resonant Antennas and Chokes

I have three suggestions: 1) If you are feeding the antenna at the precise end of the wire, move the feedpoint out a few feet. That's because you need "the other half of the antenna." Because of the high impedance at this point, only a few feet are needed. 2) Don't connect one side of the la

Re: [Elecraft] KAT 500 and open wire

When I used to use ladder line I noticed a significant detuning effect when wet. It was worse with older line, probably because the weathering made the water more likely to stick. I never tried to measure the loss. I tried waxing the line with automotive wax and saw an improvement. But I don't

[Elecraft] P3 forgets settings

In the past few months, my P3 has begun to intermittently forget its SPAN and CENTER values (it is always in fixed mode). It doesn't seem to be related to any changes in firmware in either my K3 or P3, which I haven't done in some time. I use the DXLAB software, in case that could have someth

Re: [Elecraft] OT: Astron linear PS regulation issues

I have had very good results with Astron, but I treat their products like MFJ's: When I get a new one, I always open it up, check that everything is tight, remove paint if needed, look at the soldering, etc. It is worth checking the tightness of the connections to the capacitors every 20 years

Re: [Elecraft] Split receiving and 2 ears

I like A-Ab too, when working split. It makes the DX station stand out. A nice thing is that the K3 knows that even when you have A-Ab set for pileups, when you use Diversity, you automatically get A-b. Sometimes, when the DX is hard to copy, I even switch back and forth between Diversity and

Re: [Elecraft] P3 SPAN Instability

I had a problem in which both SPAN and CENTER changed arbitrarily (it seemed) on band changes. I finally saved the configuration using the P3 Utility, reset the P3 to factory parameters (power off, hold LABELS while powering on, wait for 2 seconds, let go of LABELS), and finally used the utility t

Re: [Elecraft] P3 SPAN Instability

s to where it should be... P3 with SVGA, and power monitor. Only on 30 meters... Any suggestions? 73s and thanks, Dave (NK7Z) https://www.nk7z.net Award Manager, 30MDG Grid Awards ARRL Technical Specialist ARRL Volunteer Examiner ARRL OOC for Oregon On 3/10/19 8:06 AM, Victor Rosenthal 4X6GP wro

Re: [Elecraft] P3 SPAN Instability

No, the save/restore restored everything to how it was before. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 10 Mar 2019 20:57, Dave Cole (NK7Z) wrote: I have been thinking of that.  When you did it, was your P3 revocered to the same exact setup as wh

Re: [Elecraft] Possible P3 UI Improvements

Here is a macro that I use to get into "Pileup Mode." This one is for small pileups of 5 kHz or less. I also have defined macros for 10 and 20 kHz pileups. The last two instructions are for the P3. Note that you have to use a program of some sort to send the instructions, because the p3 doesn'

Re: [Elecraft] Will there be a K4

Of course they can't say, since it would shut off sales for the K3S. I added new synthesizers to my K3, but didn't feel that the other stuff justified buying a new rig. But that is for everyone to decide for themselves. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qs

Re: [Elecraft] Will there be a K4

1. A bitmapped display, so that it could be updated with the software, and would support soft keys. 2. A touch screen. Whether to go this way is a hard call. Many operators hate them. But given that there are many good reasons to keep the same form factor, it gets harder and harder to cram all

Re: [Elecraft] K4?

__ 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: ht

Re: [Elecraft] K4?

__ 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: ht

Re: [Elecraft] [K4] request new feature

But the BALANCE control only works with subreceiver audio, either in diversity or normal mode. It does NOT work when the subreceiver is off or not installed. This would be a desirable feature for folks with better hearing in one ear than the other. 73, Victor, 4X6GP Rehovot, Israel Formerly K2

Re: [Elecraft] Technical question on keying of an SDR radio

Oh no! NOW you tell me that all these years that I have believed that I have been operating CW, it's really SSB! (Disclaimer to avoid the otherwise inevitable explanations that a pure audio tone transmitted via SSB is identical with CW: I know that). 73, Victor, 4X6GP Rehovot, Israel Formerly

Re: [Elecraft] Measuring SWR (Long)

I believe I run the highest SWR of anyone here. It is close to 100:1 in normal operation according to EZNEC (I have never tried to measure it). The line is open-wire line made with no. 12 (2mm) wire, only about 10m long. The highest SWR is on 40 meters, and I calculate the loss as around 1 dB.

Re: [Elecraft] KAT3A 160M issue

If I had a problem with a KAT3, the first thing I would check would be the relays. But where is the LP100 connected? It must be AFTER the KAT3, so a problem in the KAT3 would not change the SWR indicated on the LP100 (or the P3 for that matter). Maybe you had a cable, connector, or antenna probl

[Elecraft] Visalia?

Did Elecraft show or hint at anything interesting at the Visalia DX Convention? -- 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listi

Re: [Elecraft] K2 Bird

__ 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: ht

Re: [Elecraft] New bug, popping on dah side

I have tried all kinds of debouncing circuits, but the one that has always worked best is simply a 12v reed relay with a 10uf capacitor across its coil -- not across the contacts! I used an SPST reed relay I got at the now-defunct Radio Shack, but there are many such relays that are suitable.

Re: [Elecraft] K3 Apparent PA failure ?

That's what I would try next. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ Vic On 9 Apr 2018 20:18, Brian Hunt wrote: Do you have a saved CONFIG file you can reload? Maybe those data got garbled by the nonstandard shutdown? GL! Brian, K0DTJ On Apr 9, 2018,

Re: [Elecraft] Astron VS-35M Powwer Supply V-

But since there may be multiple devices connected to the power supply, and most of them have the V- connected to the case, then in effect there is a path to the radio through all of these connections. How can you "Keep all of the transmitter power supply return current confined to the power cab

Re: [Elecraft] K3S birdies?

Make sure the internal cables with the little TNC connectors are all seated properly. A poor shield connection can contribute to birdies. Oxidation or vibration could create this condition over time. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 11 Apr 2018 05:4

Re: [Elecraft] Elecraft Digest, Vol 168, Issue 26

__ 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: htt

Re: [Elecraft] CW AGC settings

__ 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: htt

Re: [Elecraft] Tuner ranges

I believe that the K3 tuner does have more range than the one in the KAT500. My experience with this kind of system (tuner -> balun -> open wire line) is that the 1:1 balun works much better from the point of view of losses and choking off RF in the shack. What do you mean that the 4:1 balun

Re: [Elecraft] K3S USB Drivers

Unfortunately the update options you refer to are not available in the "Windows 10 Home" version that most people have. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 30/05/2018 10:27, Ian White wrote: The functions that are lost can vary, depending o

Re: [Elecraft] Default K3 transmit delay may be too short for slow QRO amplifiers

My amplifier uses a reed relay and a vacuum relay for QSK. It uses the so-called "AG6K circuit" which supposedly makes the usual Jennings RJ1A relay operate in 2-3 ms. I never had any problems with the default delay of the K3, both before and after installing

Re: [Elecraft] [K3] factory upgrade to K3(s)

On the other hand, just changing the synthesizer(s) in the K3 makes a huge difference and is worth doing. Yes, there are plenty of other nice things about the K3S, but I already had a good external preamp and no need for a USB port. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5

[Elecraft] Using a "streamer" with K3

__ 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: ht

Re: [Elecraft] Survey and summary: Elecraft K3/K3S panadapter solutions

__ 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: ht

Re: [Elecraft] KPA-1500 Efficiency As A Function of Input Power

Because the effect of power dissipation over time is temperature increase. RTTY has a high duty cycle (100% when you are transmitting), compared to 50% for CW and usually something less for SSB (it depends on the amount of compression). So more heat is produced when you run RTTY, which the ampl

Re: [Elecraft] Craziest / most rewarding QSOs

About 4pm one afternoon in New Jersey, I heard an Egyptian station in QSO with a W8 on 20 meters. I waited to pounce, because I had never even heard Egypt before. But then the W8 asked him to "try 40," and the Egyptian immediately QSYed. I despaired. Although I only had 40 watts, I had a 2-elem

Re: [Elecraft] best grounding technique

Having a bus that runs the length of an operating desk with all the equipment connected to it by short straps is not that different from bonding each piece of equipment to the ones next to it. But it allows you to remove one unit without breaking the "chain." This is contrasted to the "star" sys

Re: [Elecraft] KAT500 failure

__ 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: ht

Re: [Elecraft] Elecraft W2 Wattmeter for sale ... needs repair

__ 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: ht

Re: [Elecraft] Elecraft CW keying mistakes using bugs - semiautomatic keys

I use a reed relay with a capacitor across the coil with my bug. The K3 is not the only modern radio that keys poorly with a bug. 73, Victor, 4X6GP Rehovot, Israel CWops #5 Formerly K2VCO https://www.qsl.net/k2vco/ On 09/05/2021 20:38, IK4EWX wrote: Dear friends, Elecraft K3S owners, now I am s

Re: [Elecraft] Elecraft CW keying mistakes using bugs - semiautomatic keys

__ 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: ht

Re: [Elecraft] Gurus

I live in a place where there is a ham with a legal limit rig and a big beam less than 1 km. away. Antennas are line of sight. His signal renders about 10-20 kHz of the (CW) band unusable, with lesser effects extending out farther. He does not have clicks; it is phase noise (or something lik

[Elecraft] OT: Nano VNA

Only marginally Elecraft related, but I want to buy a Nano VNA. There are numerous models and sources. (for example, Amazon has a bunch of them ). They are also all over eBay, Ali Express, etc. I don't want to mess this up. What model should I get?

Re: [Elecraft] HOA Crap

__ 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: ht

Re: [Elecraft] A or B?

There is only a difference if you squeeze the paddles, to make a C for example. Try sending C's with one squeeze in mode A and B and you will feel the difference. 73, Victor, 4X6GP Rehovot, Israel CWops #5 Formerly K2VCO https://www.qsl.net/k2vco/ On 06/07/2021 20:49, jerry wrote: All,   I

Re: [Elecraft] Broke my K2 :(

Remember PTTL? Poorly Tinned Toroid Leads. Look for them. 73, Victor, 4X6GP Rehovot, Israel CWops #5 Formerly K2VCO https://www.qsl.net/k2vco/ On 07/07/2021 22:19, jerry wrote: So I went out this morning to replace the CW filters with the upgrade kit. Unsoldered the 5 crystals. Removed one of

Re: [Elecraft] A or B?

It's a version of mode b with slightly different timing. It is easier to send with fewer mistakes than the usual mode b. I got addicted to it and had a hard time when I changed to the mode b in the WinKey. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ .

Re: [Elecraft] KCOMM for K3

__ 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: ht

Re: [Elecraft] K4 delivery status

I'd like to know too. I keep flipping back and forth between "I'm too old to buy another radio" and "but the K4 is so cool." 73, Victor, 4X6GP Rehovot, Israel CWops #5 Formerly K2VCO https://www.qsl.net/k2vco/ On 16/08/2021 23:20, Fred Jensen wrote: I haven't seen much K4 chatter here lately, I

  1   2   3   >