Re: [Elecraft] Noise cancelling headphones

ot know anything that meets your criteria. > > Good luck in your search, > > Mark > W7MLG > > On Fri, Aug 3, 2018 at 9:11 PM, Guy Olinger K2AV > wrote: > >> This thread seems to be read by some who are familiar with headsets, but >> I’m asking a sligh

Re: [Elecraft] Noise cancelling headphones

This thread seems to be read by some who are familiar with headsets, but I’m asking a slightly different question... A) I am looking for a headset/mike combination, with *all* the following. 1) over-the-ear dual headset 2) noise-cancelling headset 3) active noise-cancelling boom microphone 4)

Re: [Elecraft] Horrible APRS QRM on 2 Meters

Although I agree with other points, the DSP noise blanking does not work by pulse-closing the analog 15 kHz IF. It works in the number soup which is after the high IF, *and* after the low IF, *and most importantly* after the analog to digital conversion. DSP NB, being accomplished in the number

[Elecraft] [K3} KXV3B's extra preamp on 160m RX?

Is there a way to select the KXV3B's extra preamp for use with low band RX antennas. I am in the spot of putting a separate preamp in line to do what the 10/6 m auto extra preamp already does. I've already been digging for something like that in doc and manual but can't find anything, so if

Re: [Elecraft] K3. FD shutdown

With a low number serial K3, (mine is 1239) it really is important to have kept up with the mods over the years. One of those was the gold pins. I kept going with these right through the new synths. Only one I didn't do was the new IO board with the USB. If I didn't have my contest rigging

Re: [Elecraft] K3. FD shutdown

TMP connectors that were never fully seated are a common cause of such issues. When fully inserted, the little wings of the male plug should be right up against the shell of the female receptacle. 73, Guy K2AV On Mon, Jul 3, 2017 at 10:51 AM Bob wrote: > Hi Ron. > > That

Re: [Elecraft] K3S USB audio output needs to be adjustable in Menu

Gotta remember that there's no audio here, just numbers that represent audio. Somewhere in the PC there is a setting that instructs a program to set a reference level for the digital signal. It's not at all like running coax from line out jacks. The digital doesn't pick up hum or flat-top. Just

Re: [Elecraft] K3S Noise Blanker

On Sun, Jun 4, 2017 at 7:22 PM, Marvin Wheeler wrote: > The only way I can tell > the noise blanker is working is that if I turn the setting to high Hmmm, The noise blanker has two separate components, the first is a smart control of traditional IF noise blanking which

Re: [Elecraft] K3S oscillation issue

Talking to the masses as well as the original poster. Many of us, this writer included, have experienced RFI, and it almost never involves something wrong with the K3, or any transceiver, for that matter. It was lack of bonding and/or grounding, loose leads, plugs only halfway in, PL259's or

Re: [Elecraft] Dayton Dropoff

Call em up and ask them directly. 73, Guy K2AV On Mon, May 15, 2017 at 1:12 PM, Scott Manthe wrote: > Hello to the list, > I'm getting ready to send my K3 off to Elecraft for some updates. Does > anyone know if it would be possible for me to drop the radio off to them at

Re: [Elecraft] Elecraft's source code

On Fri, May 12, 2017 at 1:09 PM, EUGENE GABRY wrote: > This one is an easy one if it were open... A very simply stated statement > that any modifications done via re-writes of code are now responsibility of > owner, warranty void. - The truth, sadly, about schemes

Re: [Elecraft] KPA runaway issue

Run the 5 and 50 watt TX power calibration on the K3. It's in the K3 utility program. 73, Guy K2AV On Sat, May 6, 2017 at 12:51 PM W1GO (Joe) wrote: > > Elecraft faithful, > > Any guidance with trouble shooting a KPA500 / K3 issue would be helpful. > > Problem: KPA500,

Re: [Elecraft] K3 with subrx - intermittent main RX problem and pwr out

Must underscore what Don said. Busted BNC connector/coax wiring is so very common. If they were hand-done with soldering iron and NOT RG400 coax (teflon, won't melt) or were not crimped with specific tool required for the specific connector and specific coax, they are more likely to go bad over

Re: [Elecraft] Older option boards from K3 upgrade

2017 at 1:20 AM, Vic Rosenthal <k2vco@gmail.com> wrote: > 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 K2

Re: [Elecraft] Older option boards from K3 upgrade

Roger that. I missed the KXV3 in your post. I upgraded to KXV3B and gave my now spare KXV3 to a friend filling out a K3 he picked up. Friend had to pay for the shipping plus a cool one for the trouble of going to the post office. :>) Don't throw away the KXV3. Just throw away the Syn boards.

Re: [Elecraft] Older option boards from K3 upgrade

time in day-to-day operation, I haven't > noticed a difference. > > Wes N7WS > > > On 4/25/2017 1:14 PM, Guy Olinger K2AV wrote: >> >> I tossed my old synthesizers, in accordance with my dropping my old >> closet hoarder policy of keeping any and all for 40 years to

Re: [Elecraft] Older option boards from K3 upgrade

I tossed my old synthesizers, in accordance with my dropping my old closet hoarder policy of keeping any and all for 40 years to see if it might be of any use. I actuarially doubt I will see another 40 years. The synthesizer mod has met with such documented success, that I routinely advise

Re: [Elecraft] K2 Rev A to Rev B Upgrade

Revision B fixed a lot of things. With your experience, I would do the A:B upgrades and all the other mods. I'm not sure the DSP board is available any more from Elecraft, DSP's CPU part not made any more is what I'm remembering. I did them one at a time, spread out. Not a one or two night

Re: [Elecraft] A little theory

Kind of like the sea drawing out before a tsunami :>) 73, Guy K2AV On Thu, Apr 20, 2017 at 12:08 PM Terry Schieler wrote: > Good point. Here is my "theory" on this OT overload thing, Ron. When the > Off Topic contents of the posts become so frequent and overbearing, there >

Re: [Elecraft] Sub Receiver & KBPF3

I get the "big hands in small spaces" complaint. I have very small hands and can do some stuff that some of my friends just simply cannot do. On the other hand there is no way I can swing a sledge hammer on a ground rod like they can. Ham friends that you can bribe with 807's and a backyard grill

Re: [Elecraft] OT: Feedline Question

up.com> wrote: > On Tue,4/18/2017 10:10 AM, Guy Olinger K2AV wrote: > >> Then there is the loss based on number of spacers and loss tangent of the >> spacer material modifying the lesser air loss. >> > > Below UHF, loss in transmission line is virtually all due t

Re: [Elecraft] Feedline Question

Guy, K2AV wrote: > The constant wire diameter reduces the manufacturing setup and run costs > passed on to a cheep penny pinching ham population. Please excuse, that should be "The constant wire SPACING reduces the manufacturing setup and run costs. 73, Guy K2AV

Re: [Elecraft] OT: Ground rods and concrete

Part of the mental imaging problem here is that our brains, in their internal emotional response to orders of magnitude, simply cannot scale the destructive power in lightning. Lightning is quite capable of melting the leads to six properly done ground rods, AND at the same time blowing up a

Re: [Elecraft] OT: Feedline Question

The effect of spacers is a very complex equation. One large modifier to the end result is the number of spacers per unit of length. Then there is the issue that the relative permittivity in between spacers reverts to air away from the spacer. Then there is the area on either side of a spacer where

Re: [Elecraft] [K2] Odd "Hi Refl"/high current problem only in TUNE

Sounds more to me like an arc out in feedline/antenna somewhere. While the arc is flashed, the feed Z goes very low. And the SWR therefore goes very high. And it takes less energy to continue the arc than to start it. The key here is that the SWR changes when the trouble starts. An antenna is

Re: [Elecraft] Amber display for the K2?

K2 #1239 is green at night when the internal light is on, more gray than green in daylight. But it definitely is not amber. I suspect that is a function of the LED's that are lighting the screen, which appears to be lit from the side, not the back. 73, Guy K2AV On Tue, Apr 4, 2017 at 2:34 PM,

Re: [Elecraft] [OT] Re: reply to digest

Not everyone wants to use Thunderbird and keep their email on their local PC. Not everybody is Mozilla enamoured. Finally weaned my wife off Thunderbird and moved to Gmail, and she now does her admittedly simple email stuff on her smartphone with Gmail's app. No more dragging the laptop along on

Re: [Elecraft] K3 loss of rx signal

Outdoors, PL259 tightened by hand in cool/cold weather will come loose in warm weather. This is particularly vexing when the connection is up on a tower out on a boom to a balun on the driven element. Pliers plus maxi-sealing against the weather is the rule for these. The teeth can be misaligned

Re: [Elecraft] K3 loss of rx signal

On Mon, Apr 3, 2017 at 10:19 AM, Phil Hystad wrote: > What do you mean “Hand Snug” is not good enough? Lordee, I've seen, done, and heard of these things so many times... PL259 the worst offender, with BNC close second. Mini-coax TMP in a class by itself. On the PL259, if the

Re: [Elecraft] K3 loss of rx signal

Could be a relay, however The most common source of intermittents is cords and connectors that are either only partially connected or have had wires stressed past breaking but held together intermittently by insulation, or were never soldered, or were poorly crimped in manufacture. Banging

Re: [Elecraft] K2 main encoder wanted

If you can see the bend, very slightly file the "off" side of the shaft and use aluminum foil to shim the other side of the shaft at the end. This may relieve the drag. 73, Guy K2AV On Thu, Mar 23, 2017 at 6:00 AM Bob G3PJT wrote: > Yes the shaft is very slightly bent > > 73

Re: [Elecraft] OT: RFI problem on 80,40 with AT Uverse

I had this problem in spades especially 160. In the end, after some number of repairs to AT cabling, etc, the replacement of a 2Wire 3800 gateway box with a 3801 killed it dead. IF you have a 3800, it will need to be replaced, although the sudden appearance seems to sound like something suddenly

Re: [Elecraft] Linear thoughts

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick wrote: > The what? K4. Whatever the K3x finally evolves to, plus a front-end that does brainwave interpretation by a combination brainwave detector, microphone, headphone, computer display, eye reading device that looks like an

Re: [Elecraft] Linear thoughts

KPA1500? QSK. Bombproof. IF possible, amp only in K3 form factor, separate power supply regulated with sense line from the amplifier module. KAT1500 with ability to place it remotely, able to place KAT1500 control buttons in an otherwise blank spot on KPA1500 front panel. KAT1500 with memory per

Re: [Elecraft] K3 upgrade to K3S question

The synthesizer upgrade makes a huge improvement in any medium CW speed operation and gets rid of a slight irregularity in CW formation when keying slower tx/rx transition amps. That's in addition to the superb lowering and narrowing of phase noise. I have this half notion to get a single rx K3

Re: [Elecraft] RX Mush, why the fuss?

There is some conflation of two quite different concepts going on here. The first thing you need to know about an AGC response graph is the speed that the incoming signal was varied to produce the curve. In many cases, the input signal was steady state from a signal generator, set to a list of

Re: [Elecraft] RX Mush, why the fuss?

One problem here is that a lot of the discussion has been in analog terms. We have to remember that in the K3, the digital AGC controlled by the AGC parms is just that, a digital algorithm. What it does has nothing to do with diodes. It can do anything weird and completely non analog resembling,

Re: [Elecraft] 80 Metre Verticals

Concurring with Tom, assuming you have the polarity of the X correct, and there's more. A short 1/4 wave-ish vertical that shows R=57 in the R+jX expression is a vertical/counterpoise or radial(s) combo that has far too much resistance and is a dead giveaway for a considerably inefficient antenna

Re: [Elecraft] K3 Receiver mush

On Sun, Feb 26, 2017 at 12:24 PM, Mike Cox wrote: > If CONFIG:PB CTRL is set to .01 in CW mode, then, per the function > description in the K3 Owners Manual (pp. 62 in Manual Revision A1), you > will be limited to the Shift/Width controls mode only. Change PB CTRL to > .05 and you

Re: [Elecraft] Can not connect KIO3B USB with my MacMini

From the K3S manual, p. 18: *Set the CONFIG:RS232 menu parameter to USB. Exit the menu.* • With the USB cable plugged in and the K3S turned on, determine which COM or sound device ports have been assigned to the K3S. This can be done from within applications. On Windows PCs, an alternative is to

Re: [Elecraft] K3 Receiver mush

Sounds like very strong signals with fast agc with its decay set well into fast range. And if you have stations using spot frequency that will really muddle them. I have my fast agc set to its slowest possible decay and my slow agc set to fastest possible decay. Then I only use the fast in heavy

Re: [Elecraft] K3 QRQ

ott - NE9U > > Sent from my Republic Wireless Cray 1 > On Feb 19, 2017, at 4:34 PM, Guy Olinger K2AV <k2av@gmail.com> wrote: > > Do you have the new synthesizers? The CW qrq timing issues were greatly > improved with the new syns. That was matter of less time for the syn

Re: [Elecraft] K3 QRQ

Do you have the new synthesizers? The CW qrq timing issues were greatly improved with the new syns. That was matter of less time for the syns to settle. There is also a regular and fast qrq. 73, Guy K2AV On Sun, Feb 19, 2017 at 12:00 PM NE9U - Scott Jasper wrote: > Has a

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

On Sun, Feb 19, 2017 at 3:37 AM, Edward R Cole wrote: > One other consideration,if using metal tools around high current sources > (like batteries or power supplies): Shorting the terminals may cause rapid > heating and result in explosions. An exploding lead-acid battery

Re: [Elecraft] paddles directly to K3 - not working

Hi, Jorge, The Key jack is for a hand key, bug, or a binary keyed stream from the logging program/WinKey box/etc. Paddles directly to the K3 internal keyer need to be connected to the "PADDLE" jack and the only way to affect the speed of the K3 internal keyer is the speed control on the front

Re: [Elecraft] EFHW

On the low bands most end fed half waves are inverted L's or fairly close and for very good reason. That's due to the kind of support people commonly have for an 80 meter wire that's a total of 135 feet long. Most commonly, a pair of trees, a horizontal wire between them, and at one end of it

Re: [Elecraft] [OT] end-fed halfwave antennas

The EFHW antenna was not invented by anyone alive today. It is very definitely a classic antenna. It's just a very efficient antenna that has gone through periods of forgotten usefulness. An end-fed 80m half wave L, or other "bent" form, is an antenna that has been used successfully at least

Re: [Elecraft] lousy cw signal

Hi Jerry, That is the kind of broadening that can occur if your transmitted signal is arcing continuously somewhere on the transmission line or antenna when your key is down. Fix the antenna and that most likely will go away. "Matching" an arc with a tuner is illusory, and tends to transfer

Re: [Elecraft] KPA500 Power Supply Environmental/Ergonomic Issue

While without reference to quantities I certainly agree with the sentiment, but to be focused on a night light level power is kind of like swatting at gnats while pidgeons are flying around in the kitchen. Does your attic insulation need replacing. Are all of the light fixtures in your house

Re: [Elecraft] Why no love for the 1khz CW filter?

Some of us deliberately operate with the roofing and DSP at the same bandwidth, and with some care to get the skirts coincide. This provides the maximum possible drop at the edges, quite useful in a crowded contest. I want to hear equally well in a specific bandwidth, and then I want the

Re: [Elecraft] K3 VFO link not working

The "link" function has been moved to CONFIG: VFO LNK. You can also use a macro with the "LN" command along with others to do a one button execute on complex functions involving link. The SUB button only has tap = SubRx on/off toggle, hold = Diversity toggle. Also a tap which turns *off* SUB,

Re: [Elecraft] Solved: Selected post Jan 27, 2017; 9:19pm K3 and right channel dead

As to why in the first place, check power supplies and connections. 73, Guy K2AV On Friday, January 27, 2017, Ignacy wrote: > I looked up an old message about a dead channel. It mentioned SPKRS. Turns > out SPKRS changed automatically to 1. After changing to 2, everything is >

Re: [Elecraft] K3: past chirp report

On Thu, Jan 19, 2017 at 2:09 PM, Doug Smith wrote: > 2) Voltage at the K3S is 13.8 key up and 13.2 key down; seems OK. Power > supply is a switcher which I’ve used for some years. > > 3) K3S is drawing 21.96 amps key down. (Not running 100 watts into the amp.) 2) that's too

Re: [Elecraft] Source for K3 weighted knobs

Noting I am not saying there is a cost-justification ... The non-stock weighted knob I have now on my K3 is quite heavy, very smooth and all rounded edges, so no sharp edges to irritate. Plus it has a ball-bearing dimple for silk-smooth dimple tuning. Yeah, it is over the top, but I'm old and

Re: [Elecraft] WSJT-X Problem with K3S

Can't argue entirely with success, but often folks just want to put the trouble In a cage so they can get on with having fun. I get that, it's a hobby. For sure, been there done that. But all you have done for the moment is put the snarling dog in a cage where it can't bite. If you ever run an

Re: [Elecraft] WSJT-X Problem with K3S

You should really do what Joe suggested. It is highly unlikely that RFI would ONLY affect the one CAT command. It more likely is some kind of timing entanglement which will be difficult to diagnose. DO try what Joe said: On Thu, Jan 12, 2017 at 1:08 PM, Joe Subich, W4TV wrote:

Re: [Elecraft] K3s meter

Hi Richard, The issue with your request is that there is only **one** line of display "dots" on the display. The single line of dots is interpreted with the upper graticule in RX, and with the two lower graticules on TX. For what you want, there would need to be two rows of dots driven

Re: [Elecraft] Please do a KPA1500

On Dec 30, 2016 12:36 PM, "Fredric Serota" wrote: > Now more than ever there is a need for a 1500 watt amplifier of the > quality and function of the KPA500. PLEASE, Elecraft, reconsider your > decision to produce a KPA 1500. Without debating how much use is had from a 5 dB

Re: [Elecraft] K3S Sound Board upgrade for K3

I wasn't referring to the USB sound, etc, found in the KIO3BUPKT. The K3S sound board has higher speaker power power and other refinements which enhance what you hear in the speaker and headphones. That is not listed on the page. 73, Guy. On Thu, Dec 22, 2016 at 10:30 PM, Gary Hembree

[Elecraft] K3S Sound Board upgrade for K3

Whatever happened to distributing the K3S sound board and its various improvements for the K3. That's been rumored forever it seems. We have the various other improvements, synthesizers, new preamp, etc. But not the new sound board. Is that project still alive, will it actually happen? If so, a

Re: [Elecraft] K3s - 80W on 160 - Resolved

One does not need to jam too-large cable into the power pole connector. Do the power pole normally with the #10 zip cord. Then two or three inches away from the power pole, splice in two more parallel runs of the #10 zip cord. Solder and tape these splices. This will divide your voltage drop by

Re: [Elecraft] K3 with P3

Referring to the P3 menu's NB setting. That will spread very strong signals on the P3 display. 73, Guy K2AV On Monday, December 12, 2016, Richard Fjeld wrote: > As I remember, the P3 is un-affected by settings on the K3. Nice if you > use the RF gain control, etc. > > As

Re: [Elecraft] K3 with P3

Do you have the P3 NB on? 73, Guy K2AV On Monday, December 12, 2016, GW4DVB wrote: > Hi... I have a K3 with P3 > > When using on 40m and higher I notice that a stronger signal on the band HF > and LF affect the background noise level of the band and signals in general > rise

Re: [Elecraft] Computer Keyboard and P3/SCGA

Hi Ed, You can only mate a device with one receiver, as you suspected. That is so that you can have two keyboards, mice in the same area, and have them unambiguously belong to two different PC's. Being able to do otherwise would kill that very common commercial usage, like close-by desks. That

Re: [Elecraft] Fwd: Re: LP Bridge crashes with K3

Hi George, I have to agree with Tom on this one, either suspect drivers, or some as yet undiscovered conflict running on your PC. The slowdown you describe is a dead giveaway. That the dying program sends some garbage to the K3 as it expires is irrelevant. Whatever the program/driver is the

Re: [Elecraft] HI SIG Error on K3

What is the serial number on this unit? Do you have the gold pins? 73, Guy On Mon, Dec 5, 2016 at 8:30 PM, K4MWB wrote: > Don, yes I disconnected everything but power and ground and still get the > same HI SIG indication. The strange thing is if I quickly cycle power off > and

Re: [Elecraft] SWR issue with K3

Howdy y'all. Happy day. Do hope your holiday season is nicely warming up and causing a smile or two. Mike wrote: >The only thing > that was done was I put up the Christmas lights on our balcony. After the > process of elimination I found the extension cord feeding the lights was the > issue!

Re: [Elecraft] One problem solved. A new one appears.

I would guess that you have a piece of coax and/or connector going bad. Will be something common in the path from amp to antennas, including a remote coax switch. Something is arcing Cables and connectors are forever going bad. Especially the ones we've used forever and just keep reusing because

Re: [Elecraft] K3s Err KP1?

Google elecraft err kp1 73, Guy K2AV On Wednesday, November 23, 2016, wrote: > Changed the feedline to the vertical dipole from 18ga ladder line to > 14ga and tested the system...all works fine except on 15m cw with > K3s/KPA500/KAT500 as usual. Barefoot, no msg, but with

Re: [Elecraft] KPA500 shutting down

Perhaps outdoors you have had a ground go bad, or a connector go bad, to all of a sudden have RF in the shack. Connection work loose, that kind of thing. These could happen without your seeing SWR on the line you are transmitting on. 73, Guy K2AV On Tue, Nov 22, 2016 at 8:53 AM, Michael Walker

Re: [Elecraft] k3 being turn on when N1MM is activated

Hi Jerry, Sometimes when one sees a pile of weird inexplicable happenings that don't make any sense at all, one must stand back, look at the forest instead of the trees, and say I've got the the weird inexplicable multi problem syndrome, otherwise known as "the wimps". The problem with not

Re: [Elecraft] K3 FC issue with filters

Busted firmware load will make anything sick, including me. 73, Guy K2AV On Thu, Nov 10, 2016 at 9:03 PM, W0MU Mike Fatchett wrote: > I think I have solved this. I sent all the firmware to the radio again > and the radio is behaving like my other K3. > > > On 11/9/2016 8:31 PM,

Re: [Elecraft] K3 FC issue with filters

On Wed, Nov 9, 2016 at 11:20 PM, Don Wilhelm wrote: > The passband is per mode, per mode. That would be "The passband is per band, per mode." ? G. __ Elecraft mailing list Home:

Re: [Elecraft] K3S - K3 Noise Blanker and Noise Reductor

Have not forgotten this. Have been sick for a while. It's on my reply list. 73, Guy On Thu, Oct 13, 2016 at 3:58 PM, glcazz...@alice.it wrote: > > Many thanks Guy for you help. > I use K3S from april and can be that I havent set at the best the rig. > I work 90% CW, usually

Re: [Elecraft] SVGA/P3 Question -Waterfall Height Problem

I do not have this problem, and I have P3/SVGA. Do you have all the latest production firmware? Or have you installed a beta? 73, Guy K2AV On Mon, Oct 17, 2016 at 5:59 PM, Irwin Darack wrote: > I have a P3 with the SVGA board installed + an external monitor. > > SVGA Monitor

Re: [Elecraft] K3S QST Article

On Mon, Oct 17, 2016 at 7:47 PM, Kevin wrote: > The problem I have is accepting the status quo by Elecraft. Just because > everybody else is around -30dB shouldn't mean Elecraft stop trying to do > better. Let the portable/backpacking rigs use 12V MOSFETS and switch the >

Re: [Elecraft] K2 Serial Port Question

Remembering that the DB9 jack on the back of the K2 is not RS232, if an RS232 device like a USB/serial cable was ever plugged in directly, stuff can be smoked, and on both ends of the serial cable. Most of the pins are used to talk to the 100w amp and tuner mounted externally. Voltmeter sounds

Re: [Elecraft] New KSYN3a installed and not working / recognized

Hi Michael, To be fully seated, the "wings" on the plugs must be right down against the "collar" on the socket. Having one of those TMP cable ends not fully seated in the socket is a very common malaise, sometimes with an intermittent contact, which is really fun to chase. When it's right, there

Re: [Elecraft] K2 Utility

Hi John, In the K2 the only way to upgrade firmware is to purchase a new firmware IC and replace the old IC. Field upgradable firmware via serial port and utility program not available until the K3. 73, Guy K2AV On Monday, October 3, 2016, John.m0cdl via Elecraft < elecraft@mailman.qth.net>

[Elecraft] Fwd: WSPR & Diversity RX

True diversity in digital modes requires TWO decoders running plus a secondary comparator to somehow decide between the two decoded streams. If you simply combine two audio streams there can be phase cancellation, noise on one channel ruining both, and other issues. In contrast it's simply

Re: [Elecraft] Flex SDR panadapter

For listening for weirds on my own TX signal, I use my internal battery K2/10, connected to *nothing* else and using internal speaker. This was very helpful a while back when I was accused of transmitting key clicks with my K3/8410 combo. Accuser also said I was 30 over 9 at his place. Locals

Re: [Elecraft] DATA-A tx freq offset with digital modes

[In the following text, "both the K3 and the K3S" is represented by "K3/S". Text applicable to only one or the other will be "K3" or "K3S"] Hi Graham. With a warm smile, a soft voice, and friendly demeanor. I have had to go through this post-analog era "de-analoging" my own radio perceptions,

Re: [Elecraft] Running stations with k3

On Wed, Sep 21, 2016 at 6:59 AM, Bill W4ZV wrote: > This is nothing new. K3ZO has been doing this for about 30 years (at > least) > using wide filters and his ears as DSP. > Some people really CAN do this. For some years while he was living in NC, I had the pleasure of

Re: [Elecraft] Running stations with k3

The killer for that wide roofer approach is that loud enough stations can pump the hardware AGC before the signal gets to the DSP. The "full body" (whatever that means) CW technique will NOT work in a DX test I've been in (Will knows where) with that 45 over S9 Italian station running 15 kW and a

Re: [Elecraft] K3 Erratic VFO behaviour, Switching bands and freq's

In the K3 there are a few digital lines from the front panel which carry multiplexed information to the CPU. The only way I can think of that would scramble unrelated front panel input according to your report is that the multiplexed line is malfunctioning and screwing up the data stream into the

Re: [Elecraft] KPA500 Stopped working on 40

If you have the KAT3 in the K3, make sure you haven't accidentally changed the output to the SO239 which DOESN'T have the KPA500 attached. Changed by tapping the ANT button. That setting is remembered by band. So if you accidentally tap it, it's moved to the other SO239 on the back of K3, and

Re: [Elecraft] Regarding K3 12v RCA rear socket - many thanks

On Friday, September 16, 2016, Robin Moseley wrote: > RCA sockets are designed to grip the centre pin at 4mm inserion.. the > standard pin length is 8.5mm Hmm. Then how do you account for http://www.farnell.com/cad/436556.pdf?_ga=1.267275786.520606856.1474066281 pin

Re: [Elecraft] Regarding K3 12v RCA rear socket - many thanks

There also is an issue that caused me a lot of grief until I figured it out: some pins on RCA plugs are not long enough to contact the tongues on some RCA jacks. This could be an issue with the shoulders of the jacks or the shape of the shell of the plug. But the result is that the pin just

Re: [Elecraft] How low (V) can the K3 go?

The manufacturer has clearly, often, repeatedly stated, and keeps posted their specification that the K3/K3S is designed for 11 to 15 volts. Optimum THD is at the high end of that range. I have my supplies set at 14.4 VDC for this reason. This is also the bulk charge voltage for my "12" volt

[Elecraft] High End Operators?

Sigh... "High End Operators" is an obsolete citizens band radio (CB) pejorative term I have not heard in a very long time, almost forty years. The term came about after the 1977 CB expansion from 23 channels to 40. The first 23 channels allotted, except for channel 23, came from the 1958

Re: [Elecraft] K2 & HiCur message on 160 - 15, 12 & 10 OK.

If the voltage drops from 13 to 12.4 with only a 3 amp draw on a 30 ampere Astron, you likely have a severe power problem somewhere. Measure the voltage on the Astron output terminals when you key the K2. If the drop is present at the Astron, then you have a severe Astron problem. If not then you

Re: [Elecraft] Recommended filters for Diversity Receive?

On Fri, Sep 2, 2016 at 6:10 PM, Bill wrote: > I use two 8 pole at 1.8Khz with the DSP set for 2.1. I like the way it > sounds and works. > Bill > K9YEQ > That's pretty interesting if you actually have the filters defined in the K3/K3s as 1.8 kHz. Because what will happen when

Re: [Elecraft] K2 Locked up

Hi, Aaron. Does a tap on the Rate button change the tuning rate, e.g do the two digits right of the decimal point on the display disappear and reappear with successive taps to Rate? If the tap on the button doesn't change the display, it would be a mechanical or electrical issue with the button

Re: [Elecraft] KDSP2

The K2 was first prototyped in October 1997. I'll bet no one back then would have guessed that demand for parts would still be around 19 years later in 2016. 73, Guy. On Sun, Aug 28, 2016 at 6:03 PM, Mark E. Musick wrote: > Hi Jim, > The KDSP2 is no longer available

Re: [Elecraft] [OT] NEC wire size requirements (was: Zip Wire Misrepresentation?)

It really depends on physical environment particulars, and what it is you are sizing your DC currents for. If you are talking about 4 feet, that's one thing. But if it's an RV and you are wiring up a 13.8 V DC supply circuit run from house batteries, which are where they are, to the only place in

Re: [Elecraft] K3 -TX test not sticky

Setting power to zero is a very simple way to set a persistent no-power state that bridges transceiver on/off, which gives you your work-around. I would assume that kind of usage is very rare. Turning off the power just long enough to try out all the macro settings before jumping into a contest

Re: [Elecraft] [OT] Zip Wire Misrepresentation?

If the feed to the sub-panel has 60 amp breakers in the main panel, then #6 AWG feed to the sub-panel is required by the NEC code. That you estimate at this time you do not ever use more than 20 amps out of the sub-panel has no bearing on the ampacity requirement for the sub-panel. A subsequent

Re: [Elecraft] K3 -TX test not sticky

Not a chance :>). Not an oversight. Deliberate choice. Turning a rig off/on is supposed to reset everything except configuration settings and start it over after such things as power spikes, yada, yada. Having test mode persist across power cycles would create a lot of confusion. Same kind of

Re: [Elecraft] OT:. G5RV's

Hi Fred, Loss *anywhere* would broaden the antenna. Famously the B folded dipole, fed at the center of one wire, and terminated with an RF resistor at the center of the other, has for decades been serving commercial installations with widely separated operating frequencies not connected by any

Re: [Elecraft] The 1500 watt amp

One of the things going here is that people would have sprung for an *ELECRAFT* KPA1500 with the same reliability, compactness etc. That is to say they would have sprung for a KPA1500 made to the Wayne/Eric Elecraft standards, reliability and price points we have all come to love. The man keeps

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