Re: [Elecraft] Ken Kopp K0PP

What a beautiful tribute. I too had a lot of help from 20-something hams when I was an annoying teenager. Victor 4X6GP > On 3 Jul 2021, at 2:46, Taylor Monfort wrote: > > Ken (then W5TKI/4) and Rose Kopp, and Al Fizz (K4QEO) were my mentors. I > say mentors, because "Elmers" doesn't cover

Re: [Elecraft] KPA1500 Power Supply noise

I used to maintain computers used by farmers. I’m surprised they didn’t plant crops in them. There was enough soil there. Floppy disks (this was a long time ago) were unusable due to the abrasive action of the dirt. Victor 4X6GP > On 28 Mar 2021, at 4:24, Steve Hall <99sun...@gmail.com>

Re: [Elecraft] Waaay OT: A new kind of QRM to be aware of ... warning issued by FCC today

My initial thought about being told not use my radio to commit a crime was surprise that the FBI wasn’t also sending me an email telling me not to rob banks. I mean, isn’t it sort of obvious that crime is bad? Victor > On 18 Jan 2021, at 2:12, Mike Morrow wrote: > > So...the FCC

Re: [Elecraft] K2 purchase considered

Strange. I have K2 #725, which received various mods over the years, but I never noticed anything like a loud pop, nor do I recall a mod for it. Victor 4X6GP > On 21 Nov 2020, at 4:41, barry halterman wrote: > > I will throw my two cents in on this. Quite frankly, I do not see how a K2 >

Re: [Elecraft] K3 RX dead 80/20 meters

RX ANT not activated on 80 and 20? Victor 4X6GP > On 1 Oct 2020, at 6:58, Jim Kennedy wrote: > > Hello all, I need some help ! My K3 s/n 3378 has gone deaf on 80 and 20 > meters, all other bands are good. It does not have a second receiver > installed. I have confirmed the receive signal

Re: [Elecraft] SVGA Screen save to memory stick

I’d like to know too. I’ve never been able to get it to work. Sometimes it starts saving snd hangs up; sometimes it doesn’t start. Victor 4X6GP > On 26 Sep 2020, at 3:42, w4sc wrote: > > I’ve read the manual, tried at least 10 memory sticks (a very BAD location > for the USB, some don’t

Re: [Elecraft] my KPA1500 and 160M

Ferrite is a bunch of tiny ferrous particles glued together by a nonconducting substance. It has magnetic properties but currents can’t flow in it (at least not very far). I haven’t tried, but I bet an ohmmeter would say it’s an insulator. Victor 4X6GP > On 3 Sep 2020, at 7:48, Adrian

Re: [Elecraft] Waterproof SO-239 covers

This is frustrating for those of us who don’t live in the US or Europe. Even before Corona I tried to order some hardware from McMaster-Carr in the US, only to be (somewhat unpleasantly) turned down. The same from other suppliers. I don’t know what’s the big deal when we pay the postage. I used

Re: [Elecraft] K1 D1 LED issue

Measure the voltage across the LED when it’s supposed to be on and off. That will tell you whether the LED or something else is at fault. Victor 4X6GP > On 10 Jul 2020, at 7:25, W4RAM wrote: > > Good morning, > I am looking for your advice with the follow issue: > > D1 LED in my K1 does

Re: [Elecraft] N6TV recording K4 K3

I should have said “all of them are both dedicated and lucky.” Victor 4X6GP > On 26 Jun 2020, at 8:44, Wayne Burdick wrote: > >  > There's a lot more than two :) > > 73, > Wayne > N6KR > >> On Thu, Jun 25, 2020 at 10:28 PM Vic Rosenthal wrote: >> One

Re: [Elecraft] N6TV recording K4 K3

One of the most exciting experiences in my life as a ham was participating in the field test of the K3. I once sat in front of it and turned it on and off more than a hundred times in a row to verify that a firmware fix was successful. The K4 testers are both dedicated volunteers — and lucky

Re: [Elecraft] K3 - No RF output

Check that TX INHIBIT is off in the menu. Victor 4X6GP > On 16 Jun 2020, at 0:35, G4BVH wrote: > >  > > > > >Hi Bill,The rig doesnot produce any RF out in any mode. Everything > looks normal on the display, LEDs etc, the rig keys via mic or paddle but > just no RF.Some have

Re: [Elecraft] NOT the feedline

Pardon me if this has already been covered, but do you have the same problem if you connect the antenna to ANT-2 on the KPA? I know you don’t want to do this permanently, but just as a test. Victor 4X6GP > On 2 Jun 2020, at 3:47, Peter Dougherty wrote: > > Thanks for the reply, Jack. > >

Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues)

Are you using the same output connector on the KPA1500 for the dummy load and the antenna? Perhaps the problem is in one of the SO239s or in the KPA’s switching circuit? Victor 4X6GP > On 1 Jun 2020, at 4:30, Peter Dougherty wrote: > > Many here suggested that it was most likely a feedline

Re: [Elecraft] K1 build question: T1, turn count method.

Measuring the inductance is not a good approach unless you have a way of measuring it at a specific frequency. The toroid material’s effect on the inductance of the finished coil varies with frequency, and most LC meters use a frequency below the HF range. Victor 4X6GP > On 30 May 2020, at

Re: [Elecraft] Elecraft K3s, etc. bonding

The problems of hum and RF pickup are reduced by simply connecting all the equipment chassis together with low inductance conductors. It’s a safety feature as well, providing a backup to the power cables’ ground conductor, and ensuring that disconnecting a coax jumper won’t suddenly put you in

Re: [Elecraft] VF Varies With Frequency

I put a shorted 1/4 wave stub — about a foot long on 144 MHz — on the coax to my 2m beam. The beam is right under my HF antenna, and thanks to the stub I can run 1.3 kW on 40-10m with absolutely no interference to the 2m rig, and no effect on 2m SWR. Before I had the stub, hitting the key on

Re: [Elecraft] Off-Topic: Your advice/suggestion about antenna

I wonder. Wouldn’t such noise be out of phase on the two halves of the flat top and hence be rejected? Also, the nulls will be in the same directions (although the tightness of the pattern will vary) when the antenna is operated from half its design frequency to twice that (e.g., from 40 to 10

[Elecraft] Penny wise, pound foolish

I recently ordered some Kester flux pens from a large Chinese company. They take a lng time, but shipping is free and prices are low. But: One of the pens had a date of January 2019, which means that half of its shelf life has expired. The second one had a more recent date, but was leaking

[Elecraft] NR

I’ve never found the K3 NR very useful. But this morning, I was trying to hear VP8PJ on CW through a humongous wideband radar (or something) signal that was running over S9. The IF NB didn’t do anything against it, and the DSP NB just helped a little. I found that opening up the bandwidth to

Re: [Elecraft] Dual Receivers 2 different antennas Diversity receive

I notice a big increase in intelligibility of cw signals in conditions of QSB and even QRN with diversity on 40 through 10 meters (well, at least I have dim memories of 15/12/10 m). My antennas are only about 10m apart, but one is a horizontal dipole and the other is a vertically polarized

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

Just like the 1930s vintage Western Electric at WKOP when I worked there in the early 60s. When you turned it on, it went click-click-click-click BLANG. Two tubes, 12 kV on the plates, about 1 amp plate current for 5 kW output. Victor 4X6GP > On 19 Jan 2020, at 1:45, Fred Jensen wrote: > >

Re: [Elecraft] K3 - Power cable voltage drop

I have a Fluke DVM also. I gulped when I bought it some 30+ years ago, but it was a good decision. It’s like a Snap-On wrench. It just feels right and never let me down. Victor 4X6GP > On 25 Dec 2019, at 4:29, hawley, charles j jr wrote: > > I have a Fluke 87...for a couple of decades now.

Re: [Elecraft] Analysis of a CW COMMUNICATION

I participate in in the weekly mini-contests sponsored by CWOps, called CWTs. I generally operate in the 1 hour session at 0300 UTC. At that time, most of my contacts will be in North America. Naturally my signal will be weaker there than most of the competition, so I mostly search and pounce.

Re: [Elecraft] Center-fed antennas

You bet. The Johnson Matchbox is as good as any expensive band pass filter. Victor 4X6GP > On 11 Oct 2019, at 2:57, Joe Subich, W4TV wrote: > > > The one "multiband" antenna one can use in a multi-transmitter > configuration is the flat-top with open wire feeders and a > *Link coupled*

Re: [Elecraft] Center-fed antennas

Things I’ve learned by experience: In 63 years as a ham, I’ve had several :-) HF antennas. The ones that gave me the greatest overall satisfaction have been balanced, horizontal antennas. The worst have been verticals with inadequate radial systems or low random-length wires. Inverted Vs with

Re: [Elecraft] San Francisco Chronicle: PG issues unprecedented power shut-off watch for much of Northern California

You can probably get her a deal on one of those “cute little radios,” Wayne! My wife refers to my K2 as my “little dorky radio”, but someday there will be an emergency and she’ll appreciate it. Incidentally, a serious blackout is a good opportunity to use home station antennas with no manmade

Re: [Elecraft] RF chokes ...

This may or may not be a good idea. The impedance of RF chokes at multiple frequencies varies greatly, as anyone who has built a high power tube amplifier that covers 160-10 meters learns, sometimes the hard way. An open wire line used on several bands may present very high voltages at some

Re: [Elecraft] KPA-1500 failing on 160...AGAIN!

What happens with a dummy load? If it doesn’t fail, then the problem is in the antenna. The KPA may be more sensitive to a short period of high SWR than the K3. Victor 4X6GP > On 27 Sep 2019, at 8:26, Peter Dougherty wrote: > > My KPA is once again repeatedly failing on 160m. I haven't used

Re: [Elecraft] Reflected power

He didn’t say common mode current WAS reflected power. He said that common mode current can cause incorrect SWR measurements, and that is true. Victor 4X6GP > On 16 Sep 2019, at 7:37, Jim Brown wrote: > >> On 9/15/2019 6:05 PM, Michael Walker wrote: >> Steve >> 40 seems to be the killer band

Re: [Elecraft] Rhombic antenna "gain"

Just a question of phasing it properly. Of course it would be hard to do for multiple bands! Victor 4X6GP > On 14 Sep 2019, at 4:56, Fred Jensen wrote: > > Feed the termination power back into the antenna? Conservation of energy? > [:-)

Re: [Elecraft] Rhombic antenna "gain"

Just bring 600 ohm open line feedlines down from each end to a common point, where you have a relay or two to switch the feed and the terminating resistor. Then you can reverse it with a flip of the switch. Although transmit gain is the same as bidirectional, you can cut the noise by 3 dB.

Re: [Elecraft] TX Delay

Pete, W1RM > w...@comcast.net > > -Original Message- > From: Vic Rosenthal > Sent: Saturday, August 24, 2019 9:11 AM > To: Peter Chamalian > Cc: Elecraft > Subject: Re: [Elecraft] TX Delay > > I haven’t tested it, but I recall that the delay is shortened if you use QRQ

Re: [Elecraft] TX Delay

I haven’t tested it, but I recall that the delay is shortened if you use QRQ mode. With the K3S synthesizer, you really don’t need QRQ mode for reasonable hand sending speeds, so turn it off in the menu. Victor 4X6GP > On 23 Aug 2019, at 17:28, Peter Chamalian wrote: > > I received a report

Re: [Elecraft] Dedicated FTx Rig

You’d probably end up with a computer anyway (except perhaps for portable operations) to do all the functions other than the ones that WSJT handles. For example, I check propagation, point my antenna, receive cluster and RBN spots, maintain a log of tens of thousands of QSOs in various modes

Re: [Elecraft] Antenna or KAT500/KPA500 Problem

It is possible that the ferrites are heating. If that is the case, you could test it by transmitting a steady carrier for a minute while watching the SWR. If it’s heating, there should be a gradual rise. Twin lead will change characteristics significantly when it gets wet. So will ladder line,

Re: [Elecraft] [Way (OT)] Pedantic comment about metric usage

No. 14 is wrong, of course. One million microphones is one phone, and a million phones is a megaphone. Victor 4X6GP > On 31 Jul 2019, at 0:01, Jim KO5V wrote: > > These are wonderful, but I didn't see the millihelen: the quantity of face > required to launch only one ship. > > I really

Re: [Elecraft] Windows Update and the K3 USB Audio

If your radio computers must be connected to the internet, as mine are for DX clusters, Club Log, firmware updates, etc., etc., then this may not be a good idea, since older systems are targets for malware. When MS stops supplying security patches, the situation will become even worse. Victor

Re: [Elecraft] AF Limit?

I would like it. I use minimal AGC and it would be ear protection. Victor 4X6GP > On 26 Jul 2019, at 3:29, Wayne Burdick wrote: > > At present the AF limiter only applies when AGC is off. We could add a > separate AGC-on limiter setting if needed. > > Wayne > N6KR > > > elecraft.com

Re: [Elecraft] K3S subreceiver sound "problem"

If the a/b switch causes the problem to move, then it is something connected to bandwidth (etc.) settings and not a hardware issue with the subrx. The a/b switch doesn’t change which receiver goes to which ear (etc.) Victor 4X6GP > On 2 Jul 2019, at 3:02, Robert G Strickland via Elecraft >

Re: [Elecraft] FIELD DAY PREP

One of the worst FD problems I’ve experienced was a Japanese transceiver (I’ve honestly forgotten the brand) in the SSB tent that transmitted a wideband hiss whenever the PTT was closed. We couldn’t operate CW on the same band even though there was no problem caused by his SSB signal. Victor

Re: [Elecraft] Location of VFO B on the K4

I love my K3, but like in anything you love, there are things you hate. In my case they are the touch/hold interface and BSET (which is also a hold function). I know the tradeoffs, but I still wish for dedicated controls. Here’s an unrelated thing that might be possible as an option on the K4:

Re: [Elecraft] Two Receivers

But how can you figure out the pattern (or lack thereof) if you can’t find the stations he worked? Victor 4X6GP > On 17 May 2019, at 23:33, Wes wrote: > > I probably shouldn't give away secrets but if you try this on some big > DXpeditions, you will be sorely disappointed. > > For example

Re: [Elecraft] K4

And you worked for the CIA when? I was in the K3 focus group. I didn’t even tell my wife. Victor 4X6GP > On 17 May 2019, at 8:30, Dave Cole (NK7Z) wrote: > > It will be interesting to go through the for sale ads on QRZ, and QTH looking > at who sold a K3S in the months leading up to the

Re: [Elecraft] KPA1500 LOW GAIN FAULT

The first thing to do with any amplifier failure is to try it with a dummy load. If the problem still occurs, you can rule out SWR or RF feedback problems. It doesn’t seem like any of the above if it occurs on all bands, but it’s easy and a good start to a systematic diagnosis. Victor 4X6GP

[Elecraft] Modularity

All this talk about onboard computers (or not) and operating systems in the K4 has me thinking. My K3 is serial no. 0007. I have had it since the beginning, and with a few simple upgrades, it is almost as capable as a new K3S. But the computers I had back then are long gone. What I would like

Re: [Elecraft] K3 XFIL Button

The XFIL button is my least favorite feature of the K3 user interface. I always use the knob to change the bandwidth — except when I accidentally don’t hold the button long enough when activating or deactivating the APF, which I do a lot. Victor 4X6GP > On 21 Feb 2019, at 13:40, Ed G wrote:

Re: [Elecraft] Slightly Unbalanced dipole?

I’ve measured common mode current when feeding a balanced line with a good DX Engineering 1:1 balun and an unbalanced tuner, versus a real balanced link-coupled tuner (Johnson Matchbox). To my surprise, the currents are closer to equal with the unbalanced tuner and the balun! But the Matchbox

Re: [Elecraft] Slightly Unbalanced dipole?

Why would a common mode choke at the antenna feedpoint present more problems than the common practice of feeding a balanced line through a single-ended tuner and balun? I’ve done a lot of experimenting with the latter and have learned that a) the best configuration is with a 1:1 balun, and b)

Re: [Elecraft] ERR TXF

Select AM mode and then go to CONFIG:FLTX. Or (better) use the he configuration tab of the K3 utility, as Don suggested. Victor 4X6GP > On 10 Jan 2019, at 21:04, Mpridesti wrote: > > Ok understand except how do you select AM and have it stay? > > Went to the CONFIG menu and selected FLTX (it

Re: [Elecraft] Tuners and spurious responses

I have a 50 kW BC station in line of sight with my antenna. When I used a vertical antenna without a tuner, it was enough to overpower the bias in the K3’s T/R switch and generate spurs all over 40 and 30 meters. I fixed it with a highpass filter before changing to a horizontal antenna . When I

Re: [Elecraft] I am flummoxed about my antenna

1. The resonant point seems to be at 1.80 or below. 2. The broad response indicates high loss somewhere. If you hadn’t said that you changed it, I would suspect water in the coax. Victor 4X6GP > On 1 Dec 2018, at 18:54, Leroy Buller wrote: > > There > I tried to get on 160 with my Inverted L

Re: [Elecraft] Avoiding costly lightning damage to your radios gear

I have homemade adjustable spark gaps on my open wire line. It’s important to realize that voltages from normal operation on open wire lines can be quite high. My installation is atypical since I run a very high SWR on some bands, but the TLW program calculates as much as 7kv at the entrance to

Re: [Elecraft] new owner looking for fuses.

much higher amperage fuses (according to Georg Ohm) if you > changed the wiring of a 240v amp to 120v. > > John KK9A > > From: Vic Rosenthal [mailto:k2vco@gmail.com] > Sent: Sunday, July 15, 2018 12:58 > To: j...@kk9a.com > Cc: Elecraft Reflector > Subject: Re:

Re: [Elecraft] new owner looking for fuses.

This is incorrect! The current rating of a fuse is independent of the voltage. The fuse blows as a result of heat, which is proportional to I squared times R. The voltage rating is just a guarantee that if it does blow, it won’t stay conductive due to an arc. Victor 4X6GP > On 15 Jul 2018, at

Re: [Elecraft] P3 display versus FlexRadio

This is what I do. Then I read the noise level in dBm from the screen. Very useful to compare noise levels at different times, etc. But what I would like is a menu command that could be assigned to one of the function keys to automatically compute the average noise level and then adjust the

Re: [Elecraft] [K2] auto tuner capabilities

It’s great. It matches almost anything. In the field I just hook a wire to the end of a fishing pole and throw a counterpoise on the ground. Very quick and easy. I highly recommend it. Vic 4X6GP > On 4 May 2018, at 5:42, Robert G Strickland wrote: > > I've seen and read a

Re: [Elecraft] Issue 12 re Astron Power Supply

But I keep coming back to this: almost every device connected to the power supply has V- connected to ground internally. So if you have, say, a keyer and a transceiver running off the same supply, won’t some of the transceiver’s current flow through the V- line to the keyer, to the case of the

Re: [Elecraft] K3S display issue, one problem solved

Tap the MENU button and select the LCD adjustment. Maybe it is all the way at one extreme or another. Vic 4X6GP > On 14 Apr 2018, at 14:58, Jim Spears wrote: > > OK, found the key to enabling the external 10 MHz source to the K3EXREF and > K144XV. This works FB now. no need

Re: [Elecraft] New Sub RX

Actually, I sometimes find myself switching diversity on and off while trying to break a pileup when the dx station is particularly weak. The P3 + VGA is helpful in spotting when diversity is on and I can’t hear the pileup. Vic 4X6GP > On 12 Mar 2018, at 22:23, Ralph Parker

Re: [Elecraft] PX3 & thumb drive...

I have the same problem with my P3. Vic 4X6GP > On 24 Feb 2018, at 17:23, Stephen Shearer wrote: > > I have read, tried, and still can't use a "modern" thumb drive (USB)... with > my PX3 for data transfer. > > I have an OLD thumb drive that works in my PX3 firmware

Re: [Elecraft] K3S and Winkeyer

A lot of people will say no, the N1MM CW generation is fine. But it depends on a lot of things. In my case, the CW got poorer when there was a lot of internet activity on the computer. Computer sound generation and other stuff also affects it. Everything just got much smoother when I got a

Re: [Elecraft] Selectivity

This is probably because you are using the rx equalizer and have boosted your preferred cw pitch. The narrowest filters (50 and 100 Hz) do not support the equalizer, so the boost disappears (this is slightly oversimplified, since there is an option for the type of DSP filter used for the narrow

[Elecraft] P3 drift

My K3 seems quite stable (at least for CW purposes) although I don’t have a TCXO. But there is considerable drift in my P3 for the first 15 minutes or so after turn-on. This is noticeable when the span is narrow (5 kHz). I wonder if anyone has thought about the possibility of stabilizing it?

Re: [Elecraft] OT: CW, licensing, etc.

Two things about learning code: 1) It gets much harder after age 16, but 2) the development of Morse training software has made it MUCH easier than it was in the pre-computer age. I just wish they could stop publishing those stupid charts that show the characters as dots and dashes. IMHO

Re: [Elecraft] K3 after turning on doesn't receive or transmit

I suspect that “bad things” can happen if the power drops DURING the process of saving. Then you might get partial or invalid information stored. This could be why most of the time it is harmless. Vic 4X6GP > On 14 Oct 2017, at 10:12, Clay Autery wrote: > > Just like any

Re: [Elecraft] Question for Wayne about your OCF Dipole

With any OCF or similar antenna there will be some bands on which the SWR on the coax is very high. And if you are trying to operate it at frequencies below its halfwave resonance, it can be astronomical. I'm running a 10m long rotatable dipole, center fed, on all bands from 40 through 6m.

Re: [Elecraft] Receiver Similaritie"

I racked my brain on this (I had an HRO) and the only thing I can think of is that they both have a sort of digital display. Vic 4X6GP > On 3 Sep 2017, at 23:12, Fred Jensen wrote: > > Ummm ... my K3 has a tuning "precision" of 1 Hz, repeatable. It has whatever >

Re: [Elecraft] Bluetooth audio adapter for K3

Is there a noticeable time delay when using Bluetooth? If so, it might be a problem for monitoring CW sending (or voice, for that matter). Vic 4X6GP > On 2 Sep 2017, at 2:56, Dave Sublette wrote: > > This idea of putting headphones and mic on Bluetooth has interested me for >

Re: [Elecraft] RX antenna protection

I disagree. A good preamp like the DXE preamps can handle large signals and still be linear. That means they can output a lot of power. Do not assume you are safe if there is a preamp unless it is a lousy one! Vic 4X6GP > On 15 Aug 2017, at 18:07, Ignacy wrote: > > If a

Re: [Elecraft] RX antenna protection

I'm using a Pixel Loop. Advantages are that it is small, can be rotated to null a noise source, and works on all HF bands. It is vertically polarized, so if you have a horizontal antenna you can get a useful diversity effect without too much physical separation. It has a built in relay that

Re: [Elecraft] Is it my KX3/antenna or is it lousy band condx?

It's not a "con." It is a trade off that provides wide frequency coverage with a simple, sturdy antenna in return for a few dB of loss. Quite reasonable if you are the National Guard. Vic 4X6GP > On 13 Aug 2017, at 20:28, Ken G Kopp wrote: > > The antenna Jim's is

Re: [Elecraft] KX3 AM breakthrough ()

I live in line of sight of a 50 kW AM BC station and I had interesting problems with my K3 when I was using a vertical antenna. I made a 3 MHz highpass filter which fixed it. Note also that the common T network style antenna tuner also is a highpass filter, so that could be a simple solution.

Re: [Elecraft] K3S Package Discounts

The email reflector is the first place to go if you have a problem. So of course reading it gives you the impression that there are a lot of problems. But I suspect it would be the same with a similar reflector dedicated to ANY manufacturer's equipment. The look... well, that is up to you! Vic

Re: [Elecraft] Interesting meter

A 100-watt output transmitter (with a 4-400 final!) and antenna tuner, in a 6-foot rack. Equivalent to the tx section of my K3. Talk about "battleship construction!" Lots of knobs for those who complain that the K3 has too few. Vic 4X6GP > On 15 Jul 2017, at 22:37, Drew AF2Z

Re: [Elecraft] OT: 2017 Chevy Silverado 1500 power outlets

ive to radio wire anyway. > > Charlie k3ICH > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic Rosenthal > Sent: Tuesday, June 27, 2017 11:52 AM > To: Clay Autery <k...@montac.com>

Re: [Elecraft] OT: 2017 Chevy Silverado 1500 power outlets

I don't think math or difficult physics is needed. Suppose you connect the radio directly to battery, and then suppose the battery to ground cable becomes partially or completely disconnected. Finally, suppose you then try to start the engine. When the starter solenoid closes, some of the high

Re: [Elecraft] Roofing Filters

I recall Wayne saying that Elecraft tested filters received from INRAD for some specific performance characteristics. I don't remember the details. Vic 4X6GP > On 22 Jun 2017, at 17:14, Clay Autery wrote: > > INRAD makes Elecraft's filters as I understand it... > > I'll

Re: [Elecraft] Flash mob experiment, right now, 28.050 +/- 5?

I hear lots of E skip lately. But there aren't enough ion clouds in the right places for me to reach you guys! But I did work an LZ (about 860 miles away) lower in the band with good signals. Vic 4X6GP > On 12 Jun 2017, at 18:55, EUGENE GABRY wrote: > > >> On June 12, 2017

Re: [Elecraft] [K2] No signal at TP1 during Alignment and Test Part 2

It looks like classic PTTL (poorly tinned toroid leads) on T5. Vic 4X6GP > On 9 Jun 2017, at 5:20, Robert Forster wrote: > > Hi Don and Group, > > I got a bit of time to troubleshoot this evening. > > I do have a good signal at TP3 so I am ignoring the PLL and U4.

Re: [Elecraft] P3 Will it work on other Radios

This is true, if the IF is in range. But there are some features that require communication between the radio and the P3. I think it may only work in tracking mode (not fixed mode). In any event, I would check this out in detail before buying one with the intention of using it with a radio

Re: [Elecraft] Beam antenna question

s 10 elements as > documented in the two links I provided. > > 73, > > ... Joe, W4TV > > >> On 5/20/2017 3:34 PM, Vic Rosenthal wrote: >> Why do you think it will "significantly outperform the hex beams?" >> The point about uv is well taken re fibe

Re: [Elecraft] Beam antenna question

Why do you think it will "significantly outperform the hex beams?" The point about uv is well taken re fiberglass, but I don't know what the cords on all the hexbeam versions are made of. There are uv resistant materials available. I wouldn't say an 11 element yagi with capacity hats on the

Re: [Elecraft] KPA runaway issue

Just a guess, but if it happens in SSB but not CW, look for RF feedback into audio circuitry. Vic 4X6GP > On 6 May 2017, at 19:49, W1GO (Joe) wrote: > > > Elecraft faithful, > > Any guidance with trouble shooting a KPA500 / K3 issue would be helpful. > > Problem: KPA500,

Re: [Elecraft] OT: Package shippers

The thing to keep in mind about international shipments is that UPS and FEDEX take the package all the way to its destination, including customs clearance, while USPS transfers it to the postal service of the destination country. In my case, this means at least a month of extra time plus a

Re: [Elecraft] Older option boards from K3 upgrade

The improvement in QSK performance and elimination of jitter in CW timing was immediately noticeable even without an a/b test. Night and day. Vic 4X6GP > On 26 Apr 2017, at 0:06, Guy Olinger K2AV wrote: > > Many times, with spectrum analyzer screen prints, etc. Some of

Re: [Elecraft] KPA1500

Here in 4X, I would not only have the 17% VAT but the absolutely insane cost to UPS it from California (and I wouldn't trust any other carrier). But if you do a survey of other high-quality no-tune (both solid and hollow-state) amplifiers, you will find that Elecraft's pricing is quite

Re: [Elecraft] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply

Just as a bit of anecdotal data, I am feeding a 20m dipole with 1200 watts through 600-ohm open line on 40 through 10 meters. The SWR on 40 meters approaches 100:1 (the line is short, but I am still eating about 2.2 dB loss). Anyway, this presents a very difficult problem for most tuners -- and

Re: [Elecraft] [Amps] Fwd: Re: FYI Visalia Attendees

About time! 73, Vic, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 21 Apr 2017 00:03, Ed Muns wrote: Busted link. Correction: [1]http://www.elecraft.com/images/visalia1.jpg 73, Ed W0YK References 1. http://www.elecraft.com/images/visalia1.jpg

Re: [Elecraft] Sub Receiver & KBPF3

There are two 'secrets' for working on the subrx: 1. Take off the left side panel, even though you don't need to. Makes reinsertion much easier. 2. When plugging in the TMP cables, get the center conductor in before pushing hard on the outer part. If it is placed properly, it should go in with

Re: [Elecraft] Was Amplifier - Now RF exposure limits

I did this too. They cut the carrier just long enough for me to get up above the base insulator. We used to joke about being complicit in radiating trashy music. Vic 4X6GP > On 8 Apr 2017, at 03:05, Fred Jensen wrote: > >> On 4/7/2017 4:05 PM, Ron D'Eau Claire wrote: >>

Re: [Elecraft] Was Amplifier - Now RF exposure limits

I strongly disagree. The heating effect - which is the only scientifically verifiable effect from RF exposure - is far smaller at HF than radar frequencies. Yes, you don't look into a horn antenna of an operating radar transmitter, but a 20 meter dipole is a different story entirely. The

Re: [Elecraft] Amplifier

Hmm, I am running 1.2+ kW to a dipole on the roof about 20 feet above my K3, which has no RF problems though other devices in my shack do! Vic 4X6GP > On 6 Apr 2017, at 19:28, Dennis Watkins wrote: > > I would suggest that a redesign on the K2/K3s would be a starting point.

Re: [Elecraft] [OT] Morse is back!!

And it even does SO2R. 73, Vic, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 1 Apr 2017 20:17, Doug Turnbull wrote: Dear OMs and YLs, We CW ops will be happy with this piece; Morse is back: https://www.youtube.com/watch?v=1KhZKNZO8mQ 73 Doug EI2CN

Re: [Elecraft] K2 main encoder wanted

Are you certain that a bit of fiber from the felt washer hasn't worked its way between the shaft and the bushing? That is a known problem. 73, Vic, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 23 Mar 2017 11:41, Bob G3PJT wrote: Hi Don Thanks for the reply. I did know

Re: [Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit

Of course a rat tail file or tapered reamer is the usual way, but I bought a deburring tool at the hardware store. It's a tiny crescent-shaped knife with a handle that you put into a hole and rotate. You can hold it at an angle to remove burrs from drilling, or straight to enlarge a hole

Re: [Elecraft] A question on the P3 or actually the Tx Mon

This is one of my pet peeves with the W2 -- it does not have an option for delivered power. Yes, I know how to subtract, but it's beyond trivial to do this in the software, and it would be convenient. Vic 4X6GP > On 6 Mar 2017, at 05:32, Alan Bloom wrote: > > The P3 shows

Re: [Elecraft] FW: Using your tower as a vertical - 160 or 80

Regarding using a tower as a vertical: Some years ago I had a 50-foot mast with a tribander on it next to my house. I ran two wires out my window, one down to the base of the mast and one to a point on it that produced a reasonable SWR on 80 meters. The rotor cable and feedline for the beam

Re: [Elecraft] Elecraft QSK

No, the real question is why doesn't Elecraft make a KPA1500! I agree about the Alpha PIN diodes. I had an Alpha 86 for a few years, and never had any trouble with the PIN diodes -- and I made plenty of 'antenna mistakes'. I sold it because I was tired of waiting the 90 seconds for it to warm

Re: [Elecraft] Vacuum Relays and 30 WPM QSK

I just had to replace one in my TL922 after about 5 years. I'm not a contester, but sometimes I bang away in pileups for a while. I have finally taught myself not to use QSK unless I need it. Setting the delay in the K3 to just enough to keep the relays closed between CW elements is almost as

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