Re: [Elecraft] KAT 500 Loses Match

/amateur-radio/base-antennas/multi-band-hfvhfuhf-2/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 12, 2024, at 11:15 PM, Bruce Forsberg wrote: > > I have a CHA-250B antenna, but it is not currently up. This antenna is only > rated for 25

Re: [Elecraft] K3+KPA500+KAT500 RFI Revisited

://www.arrl.org/grounding-and-bonding-for-the-amateur wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 12, 2024, at 12:18 PM, Jeff Wandling wrote: > > Dear Elecraft aficionados: > > The symptom is KPA switching bands during Tx. > > See

Re: [Elecraft] KX2 question

This all-text document has a physical description and documents the audio-CW feedback. https://ftp.elecraft.com/KX2/Mod Notes Alerts/KX2 CW UI, rev A3.pdf <https://ftp.elecraft.com/KX2/Mod%20Notes%20Alerts/KX2%20CW%20UI,%20rev%20A3.pdf> wunder K6WRU Walter Underwood CM87w

Re: [Elecraft] Yamaha CM500 Headset

Just tried mine and it doesn’t swivel all the way. The ear cups are slightly slanted, so it might fit oddly when reversed. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 11, 2023, at 12:19 PM, Richard wrote: > > I just received my Yamaha CM50

Re: [Elecraft] KX2 thread

The KX-line group is here: https://elecraft-kx.groups.io/g/main It is not an official Elecraft group, but it is friendly and useful. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 6, 2023, at 8:31 AM, Neil Smith wrote: > > Hi guys, > >

Re: [Elecraft] Portable antennae for the KX3

use 26 AWG stranded insulated “toughcoat silky” wire from The Wireman. https://thewireman.com/product/antenna-wire-26-awg-copper-clad-steel-stranded-jacketed/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 1, 2023, at 12:46 PM, Bill Priakos via Elecr

Re: [Elecraft] A Good Headset For A K3

K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Aug 6, 2023, at 8:41 PM, David Hachadorian wrote: > > I like the Koss SB-45 (3.5mm plug version, not USB). It sounds great, has a > nice padded headband, and is $30 on Amazon. > > Dave Hachadorian, K6

Re: [Elecraft] A dumb question about lightning

were large destructive fires started by lightning. My weather station counts lightning strikes near Palo Alto. It recorded 27 in Jan, 17 in Feb, and 16 in March. That would be one thunderstorm in Texas, but it is still enough to damage a radio. wunder K6WRU Walter Underwood CM87wj http

Re: [Elecraft] [OT] A dumb question about lightning

in the disconnected equipment. But it will help almost all the time. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 28, 2023, at 1:31 PM, Al Lorona wrote: > > Please don't laugh at me; I'm a transplant from a region of the country with >

Re: [Elecraft] K3 Power-hunting on FT8

and PX3, but I’m on the other side of the US. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 20, 2023, at 7:33 PM, Pete Smith N4ZR wrote: > > OK guys - rather than reply individually, let me try to pull everything > together in

Re: [Elecraft] K3 Power-hunting on FT8

on pages 31 and 32 of the manual. https://ftp.elecraft.com/K3/Manuals Downloads/E740107 K3 Owner's man D10.pdf <https://ftp.elecraft.com/K3/Manuals%20Downloads/E740107%20K3%20Owner's%20man%20D10.pdf> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 20, 2

Re: [Elecraft] K2: Filter Aliginment software for Apple MACs.

These days, it is probably easier to just get a TinySA device for $70. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 3, 2023, at 10:41 AM, Alan D. Wilcox > wrote: > > Francis, > > FWIW, I was hunting for a Mac subst for Sp

Re: [Elecraft] K4 Rx is awesome...

/contesting_faq.html wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 27, 2023, at 7:53 AM, Karl W Hubbard via Elecraft > wrote: > > I tried driving out to my local ham fest location as indicated on the ARRL > website, but no one was there

Re: [Elecraft] Starting to Ship K3 & K3S Option Last Time Buy Orders (3/1/23)

date of order”. https://elecraft.com/pages/shipping-status wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman

Re: [Elecraft] Microphone Setup Confusion

That link has some weird special characters stuck on the end of it. Not sure how that happened. This link works https://elecraft-kx.groups.io/g/main/message/9486 and is the link in the updated blog post. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On

Re: [Elecraft] Microphone Setup Confusion

Ah, found the original. groups.io <http://groups.io/> did a really nice job of copying over the archives from Yahoo! Groups. https://elecraft-kx.groups.io/g/main/message/9486 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 17, 2023, at 8:44 A

Re: [Elecraft] Microphone Setup Confusion

/main/message/46148?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3Acreated%2C0%2Ckk7p+mic+bias%2C20%2C2%2C0%2C35006985 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 17, 2023, at 8:35 AM, Hank wrote: > > I went back and re-read you article. I had made a setup f

Re: [Elecraft] Microphone Setup Confusion

) for details. https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ Phantom power for studio mics is quite different. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 16, 2023, at 6:40 PM, Alan Geller via Elecraft >

Re: [Elecraft] Experience with Energizer Lithium AA Batteries?

Also, the max discharge for the lithium AA cells is 2.5 amps continuous or 4.0 amps pulse (2 sec on / 8 sec off), so that should be fine for running the KX3. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 11, 2023, at 5:25 PM, Matthew Cook wrote: >

Re: [Elecraft] Experience with Energizer Lithium AA Batteries?

Thanks, that is actually on the data sheet, now that I look. https://data.energizer.com/pdfs/l91.pdf My biggest concern is whether they hold up under a 2+ A current draw. The data sheet stops at 1 A. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Ma

[Elecraft] Experience with Energizer Lithium AA Batteries?

I’m considering taking Energizer Ultimate Lithium AA batteries (non-rechargeable) in my KX3 on a backpacking trip. They are half the weight of Eneloop Pro and have about 40% more Watt-hours of energy. Anybody tried these? How did they work? wunder K6WRU Walter Underwood CM87wj http

Re: [Elecraft] CM 500 Ear Covers

://www.youtube.com/watch?v=Gz-atFziEz4 This guy just glued on the new ones, which might be a safer approach. http://n4cf.mdodd.com/cm500_pads.html wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 2, 2023, at 7:24 AM, Paul Ecker wrote: > > Realize this su

[Elecraft] Elmers, not proofreaders

A ham asked a simple question about the TUN function and got a bunch of criticism about terminology. There was only one post (mine) that actually answered his question helpfully. That is not a good look for this list. Let’s try to be Elmers and dial back the negative stuff. wunder K6WRU Walter

Re: [Elecraft] KX3 manual page 14 regardincg "TUNE".

You are correct, it puts out a plain carrier, CW with the key held down. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Feb 4, 2023, at 10:46 AM, JEROME SODUS wrote: > > Hello, > > My question is about the "TUNE" selection (hal

Re: [Elecraft] KXFL3 - How to Use It

filters” in the KX3 manual. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 26, 2023, at 4:11 PM, John Overbaugh wrote: > > Ok every field day, I complain about loud signals stomping on me. Everyone > says “then get a roofing filter,” so I bough

Re: [Elecraft] KPA500 App

It is right here, under “Macintosh”. https://elecraft.com/pages/kpa500-500-watt-linear-amplifier-firmware-and-utility wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 14, 2022, at 3:06 PM, Joel Black wrote: > > Before I go looking

[Elecraft] Timeline of KX3 mods

/elecraft-kx3-modifications-timeline/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post

Re: [Elecraft] Yamaha Headphones

is one for $1.50: https://www.adafruit.com/product/1064 <https://www.adafruit.com/product/1064> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ <http://observer.wunderwood.org/> (my blog) > On Nov 21, 2022, at 12:03 PM, Al Lorona <mailto:alor...@sbc

Re: [Elecraft] Yamaha Headphones

dynamic mic, so the CM500 is probably a better choice. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qt

Re: [Elecraft] 40-80m choices antenna for KX3

om/photos/walter_underwood/5907110302/in/album-72157626885239329/> https://www.flickr.com/photos/walter_underwood/5854609078/in/album-72157626885239329/ <https://www.flickr.com/photos/walter_underwood/5854609078/in/album-72157626885239329/> wunder K6WRU Walter Underwood CM87wj http://observer.wun

Re: [Elecraft] Recommendation for Microphone for K3s?

-Technica and Sennheiser with real vocal mics. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Nov 2, 2022, at 1:07 PM, Dan Presley wrote: > > I guess it is personal..I purchased a pair of the Arlan phones earlier this > year and I would never

Re: [Elecraft] Recommendation for Microphone for K3s?

That is odd, because the Koss SB40 appears to be a Yamaha CM500 with a dynamic mic. My first CM500 even said “KOSS” on the microphone connector. They should fit exactly the same. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Nov 2, 2022, at 10:09 AM,

Re: [Elecraft] Recommendation for Microphone for K3s?

Yes, the CM500 works just fine on the KX3. I recommend getting an off the shelf stereo splitter cable to get cleaner mic bias and to split out PTT. Details here. https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http

Re: [Elecraft] Recommendation for Microphone for K3s?

oss-CS100-Recognition-Computer-Headset/dp/B00C121ZOK?th=1> Amazon says “dynamic element”, but Koss says it is an electret mic. https://koss.com/products/cs100 <https://koss.com/products/cs100> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ <http://observer.wunderwood.org/

Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

ago, there was a discussion on this list that gave all the component values for all the ATUs. I’m not having any luck finding those posts right now. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ <http://observer.wunderwood.org/> (my blog) > On Oct 25, 2022, a

Re: [Elecraft] KX3 Question on S-Meter Calibration

ssing of multiple transverters (XVn ADR)." https://ftp.elecraft.com/KX3/Manuals%20Downloads/E740163E%20KX3%20Owner%27s%20Manual%20Errata%20C5-3.pdf wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 10, 2022, at 2:04 PM, D Remy wrote: > > D

Re: [Elecraft] Speaking of Counterpoise

-26-awg-copper-clad-steel-stranded-jacketed/> I believe that DX Engineering and HRO also carry it. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ <http://observer.wunderwood.org/> (my blog) > On Sep 26, 2022, at 4:32 PM, Rich WC3T mailto:r...@wc3

Re: [Elecraft] [K3] KIO3 failure mode

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

Re: [Elecraft] KX3 Internal Batteries

I have Eneloop Pro batteries in mine. I replaced them (originally called Eneloop XX) after seven years. A bit after that, one had a small leak. So mine are now on a five year replacement schedule. wunder K6WRU Walter Underwood https://observer.wunderwood.org/ (my blog) > On Jul 26, 2022, a

Re: [Elecraft] switchbox KX3 to signalink/mike+headphones

not that familiar with it. I think they have boxes that would replace the Signalink and do the switching. http://www.westmountainradio.com/rigblaster.php <http://www.westmountainradio.com/rigblaster.php> wunder Walter Underwood K6WRU https://observer.wunderwood.org <https://observe

Re: [Elecraft] COM port problems

/483873128439168 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 7, 2022, at 4:03 AM, Gerry Hull wrote: > > LOL! > > Jim and Dave, > > You both have made great contribution to the hobby. > > I am an ex ARRL Assistant Technical

Re: [Elecraft] The RIGHT way is to adjust COMP

aft-kx3/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 30, 2022, at 9:50 AM, Bob McGraw wrote: > > Start with COMP at 0, adjust the MIC gain while speaking normal voice to > attain 5 to 6 bars {no more} as indicated on the ALC m

Re: [Elecraft] KX3 Bias Voltage

for details. https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 22, 2022, at 7:23 PM, John Pierce via Elecraft > wrote: > > What is the bias volt

Re: [Elecraft] KX3/KPA100/Powerwerx Revisited

Are the fans on those power supplies running? Both of those power supplies have fans on the back. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 12, 2022, at 12:51 PM, Jim Ruff via Elecraft > wrote: > > Thanks everyone for your quick re

Re: [Elecraft] KX3 and Heatsink

Instructions are here. Doesn’t look difficult. https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/E740254%20KX3HSMDKT%20Heat%20Sink%20Installation%20rev%20B.pdf <https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/E740254%20KX3HSMDKT%20Heat%20Sink%20Installation%20rev%20B.pdf> wunder K6WRU

Re: [Elecraft] Mac Logging Software

<https://www.machamradio.com/links/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 12, 2022, at 4:08 PM, a4...@sy-edm.com wrote: > > Kevin, > SkookumLogger is my #1 logger on a Mac. The source code is available - > so you can add your ow

Re: [Elecraft] New K4 Beta Software Available (Release 30/Beta 2)

Q: What does it mean when the Python test suite passes? A: It means the test suite is incomplete. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/lis

Re: [Elecraft] Receiver impedance?

Thanks. I’ll make a wild generalization that transceivers are generally designed for the receiver portion to be 50 Ω. Anybody have an idea about SWL receivers? wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 25, 2022, at 10:05 AM, Wayne Burdick wr

[Elecraft] Receiver impedance?

Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ 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

Re: [Elecraft] The Dreaded 400 Hz hump

K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 20, 2022, at 6:07 PM, Bob McGraw wrote: > > Oh yes it is there on many SSB signals where the OP is a male. That is where > most of the fundamental male voice energy occurs. Those signals which loo

[Elecraft] ARRL Antenna Book (and other antenna books)

creative book titles. I guess I should get a current Handbook. I wore out my 1970 edition. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinf

Re: [Elecraft] PayPal holding payment.

K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 7, 2022, at 10:55 AM, Dave wrote: > > Even eBay is moving away from PayPal. > > Dave wo2x > > Sent from my waxed string and tin cans. > >> On May 7, 2022, at 1:43 PM, David De

Re: [Elecraft] KX3 Option Advice Wanted

. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 3, 2022, at 8:12 AM, Paul Jewell wrote: > > > > On 02/05/2022 17:47, Eric Garner wrote: >> I have a KX3 fully loaded (KXFL3, KXAT3, KXBC3, KX3-2M) the only one I >> would

Re: [Elecraft] Test

He’s not seeing message from the list, so replying to the list doesn’t help. I’ve already replied directly, as he asked, so other people don’t need to reply. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 3, 2022, at 8:04 AM, Paul Van Dyke wr

Re: [Elecraft] Sherwood Receiver Tests

I believe the K4HD is the model that is designed to be near the top of the chart. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 28, 2022, at 6:41 PM, Gary Gregory wrote: > > Reading the Sherwood tests today I noticed the K4D tested ran

Re: [Elecraft] SK Station Disposition

What kind of person would put a list of states in almost, but not quite, reverse alphabetical order? wunder K6WRU > On Apr 24, 2022, at 7:19 PM, Edward Mccann wrote: > > To Ed’s point: > > “Some states recognize memorandums of personal property as legally binding, > but there are 20 states

Re: [Elecraft] Diversity speaker set for sale

io. And my son has the Maggies now, plus I’m currently replacing the power supply in the Hafler. These drums: https://www.youtube.com/watch?v=C7HL5wYqAbU wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Ele

Re: [Elecraft] KX2 WTB(uild) external amplified speaker

This post describes what I put together for my KX3. That specific amp is no longer available, but there are similar ones. https://observer.wunderwood.org/2017/03/04/speakers-for-my-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 14, 2

Re: [Elecraft] Boom mounted Mike for a KX3

. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 3, 2022, at 6:58 PM, John Pierce via Elecraft > wrote: > > I have a Kx3, because I can take it to the field. But most of the time I > use it at the home shack. I recently got an amp to u

Re: [Elecraft] Unassembled K2 Vs Assembled Marketability

Yes, that is exactly why I haven’t pasted the handy label inside the lid of my Altoids tin. Unfortunately, the instructions are an image in a PDF, so I’ll need to create a label from scratch. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 14, 2

Re: [Elecraft] Unassembled K2 Vs Assembled Marketability

wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 14, 2022, at 10:14 AM, jerry wrote: > > On 2022-03-14 08:19, Douglas Hagerman via Elecraft wrote: >> I think a K2 would not be a great project for most 8 year olds. >> However, a simpler (

Re: [Elecraft] Reset KX2 to factory settings.

That does not affect the settings. Those are all saved in the configuration. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 2, 2022, at 5:50 PM, SGS 126 wrote: > > Have you tried reloading the firmware? > > On Wed, Mar 2, 2022 at

Re: [Elecraft] What happened to ALC?

“The modulator” means “the modulator code in the DSP” of course. If the compression is done by RF limiting, I expect that is also done in the DSP. The ALC you are describing is transmitter gain ALC. That is different from audio gain ALC. wunder K6WRU Walter Underwood CM87wj http

Re: [Elecraft] What happened to ALC?

after it. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 31, 2022, at 5:32 AM, Bob Schwerdlin wrote: > > I agree. From one old sound engineer to another... I see this as audio > compression. > > Bob, WG9L > > On 1/30/2022 6:17 PM,

Re: [Elecraft] What happened to ALC?

oscillation is to have a slow time constant on the sensor. That means that it just cannot respond quickly, so overshoot will happen and will cause splatter. With audio ALC, the control loop is an integrated whole and can be designed to be quick and stable. wunder K6WRU Walter Underwood CM87wj

Re: [Elecraft] RPN Calc App For Android

It is invalid syntax in RPN. Perhaps you meant 6 7 *. :-) wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 2:24 PM, kevin wrote: > > What is 6 * 7? > > KD5ONS > > > On 1/28/22 14:10, Dale Chayes wrote: >&

Re: [Elecraft] RPN Calc App For Android

Never mind, the title said “Android”. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 1:16 PM, Walter Underwood wrote: > > What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s > great. > > https://pca

Re: [Elecraft] RPN Calc App For Android

What kind of phone? On iPhones and Macs, I’ve used PCalc for years. It’s great. https://pcalc.com wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 28, 2022, at 12:50 PM, Jim Brown wrote: > > The HP41 emulator I've used for years on older pho

Re: [Elecraft] K4 microphone match.

tps://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 23, 2021, at 7:59 AM, Robert Sands wrote: > > My PR 781 was great with my K3. K4 not so good. What is recommend

Re: [Elecraft] Best Portable Wire

. The Midi Winders are the same length as my KX3. https://www.sotabeams.co.uk/midi-winders/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 20, 2021, at 6:48 AM, email wrote: > > I have been using a couple of "things"... >

Re: [Elecraft] Best Portable Wire

t wire, I use the 18 AWG, also light, but with a breaking strength of 125 pounds. https://thewireman.com/product/antenna-wire-18-awg-copper-clad-steel-stranded-jacketed/ <https://thewireman.com/product/antenna-wire-18-awg-copper-clad-steel-stranded-jacketed/> wunder K6WRU Walter Underwood

Re: [Elecraft] KX3 - Holding Power Output at Set Value\

Looks like the wall wart cannot provide the 2.5 A needed for transmit. The drop to 10 V automatically triggers dropping to 5 W. If you want a small supply, the KX-33 can provide 4 A at 14 V. https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/ wunder K6WRU Walter Underwood CM87wj

Re: [Elecraft] what soundcard for K3 and Mac

This list was updated in 2018. http://www.telepostinc.com/soundcards.html <http://www.telepostinc.com/soundcards.html> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 31, 2021, at 11:54 AM, Joe Subich, W4TV wrote: > > >> What I

Re: [Elecraft] feeding a half-wave dipole with ladder line

Are you sure your ladder line is 200-300 Ω? My calculations say that 12 AWG conductors 12 inches apart makes 680 Ω line. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 28, 2021, at 2:47 PM, Joe Subich, W4TV wrote: > > > Your 130' dipole

Re: [Elecraft] KXBC3 charger question

Nice analysis. For Eneloop Pro batteries, with 2550 mAh capacity, that would be 21% of capacity for the clock plus 15% for self-discharge. Of course, whenever the KX3 is connected to “shore power”, that is used instead of the battery. wunder K6WRU Walter Underwood CM87wj http

Re: [Elecraft] Wire antenna ends and spools?

K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 6, 2021, at 4:14 AM, steve WB3LGC wrote: > > https://www.amazon.com/Coghlans-Camp-Laundry-Reel-21-Foot/dp/B001QBZM4Q/ref=sr_1_14_mod_primary_new?dchild=1=clothesline+camping=1633518594=RZvfv%2F%2FHxDF%2BO502

Re: [Elecraft] Wire antenna ends and spools?

tps://www.sotabeams.co.uk/midi-winders/> For rope into trees, arborist throw line is great. It is lightweight and specifically designed to not get stuck in trees. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 5, 2021, at 3:33 PM, Julia Tuttle wrote

Re: [Elecraft] KXBC3 charger question

ies are low self-discharge, with 85% of charge after one year of storage. High-capacity NiMH batteries (often 2700 mAh or higher) can have higher self-discharge rates. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 4, 2021, at 9:25 PM, Gwen Patton wr

Re: [Elecraft] Ground Wire & Coax

Is the second edition published yet? ARRL shows First Edition, Fourth Printing. http://www.arrl.org/shop/Grounding-and-Bonding-for-the-Radio-Amateur/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Aug 23, 2021, at 8:27 PM, Jim Brown wrote: > > On

Re: [Elecraft] KX2 temperature

I expect he meant “existed for the KX2/KX3”. The Heathkit SB-230 is conduction-cooled with a beryllium oxide thermal link to conduct heat away from the anode to the heat sink. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Aug 21, 2021, at 8:04 PM,

[Elecraft] Flaky mic jack on KX3

. This is a fairly early model, serial number 29xx. Any ideas other than sending it in for repair? wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman

Re: [Elecraft] Connectors

Silver oxide is a good conductor, but the tarnish we see is silver sulfide, which is a semiconductor. That causes problems at low voltages. This StackExchange answer has more details: https://physics.stackexchange.com/a/365483 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org

Re: [Elecraft] Chasing paddles around desk top

Yep, Museum Wax is the good stuff. https://www.amazon.com/Quakehold-66111-Museum-Ounce-Clear/dp/B000FJU29U <https://www.amazon.com/Quakehold-66111-Museum-Ounce-Clear/dp/B000FJU29U> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 8, 2021, at

Re: [Elecraft] Heil Pro 7 headset with KX3 - RF feedback?

bias with a stereo splitter. Details in this blog post: https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ <https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/> wunder K6WRU Walter Underwood CM87w

Re: [Elecraft] SDR Filter improvement

-%20W7ZOI.pdf <https://www.n5dux.com/ham/files/pdf/Direct%20Conversion%20Receivers%20History%20-%20W7ZOI.pdf> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 3, 2021, at 5:48 AM, Geoffrey Feldman wrote: > > My career has been in software/h

Re: [Elecraft] KX3 batteries

r UL version." https://sectionhiker.com/powerpot-review/ <https://sectionhiker.com/powerpot-review/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 2, 2021, at 11:19 AM, Julia Tuttle wrote: > > Whoa, can you share a link to that

Re: [Elecraft] Temperature or Warmth of KPA500 when "Off" ?

I’m pretty sure the first homebrew project I ever made was a switched outlet strip using utility boxes on a 1x3. Might be worth doing that again and adding some good filtering. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 2, 2021, at 1:10 AM,

Re: [Elecraft] SDR filter improvement

Here is the URL for that book: http://www.dspguide.com <http://www.dspguide.com/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 1, 2021, at 8:08 AM, jerry wrote: > > On 2021-07-01 05:01, William Abernathy wrote: >> Hal, >&g

Re: [Elecraft] Heil Pro 7 headset with KX3 - RF feedback?

aha-cm500/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 17, 2021, at 5:28 PM, Jim Brown wrote: > > On 6/17/2021 2:12 PM, Hank wrote: >> I dislike my CM500’s. They are uncomfortable to wear for an extended period >> of time.

Re: [Elecraft] Heil Pro 7 headset with KX3 - RF feedback?

, but the K3 TX EQ is the same. https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/ <https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.or

Re: [Elecraft] KPA500 Power Entry Module

You should be able to order it here. https://elecraft.com/pages/parts-order-form <https://elecraft.com/pages/parts-order-form> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 13, 2021, at 10:41 AM, Tom Berry wrote: > > Does anybody know

Re: [Elecraft] KX-3/KXPA100 for multi-multi contesting?

typing, it is “KX3”, no need for a hyphen. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 1, 2021, at 7:23 PM, Drew Arnett wrote: > > Anyone try a KX-3/KXPA100 for multi-multi HF contesting like Field > Day? How does the RX hold up with loud sign

Re: [Elecraft] OT Need copy of "Antenna Zoning and the Radio Amateur " second edition

It is $12 on Kindle. https://www.amazon.com/gp/product/B00ABLAH9W/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 26, 2021, at 3:28 PM, Walter Underwood wrote: > > Check with your local library and see if they can find it for interliibrar

Re: [Elecraft] OT Need copy of "Antenna Zoning and the Radio Amateur " second edition

=brief_results Maybe there is some useful info on Fred Hopengarten’s site. He’s the author. https://www.antennazoning.com wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 26, 2021, at 3:15 PM, Kurt Holbrook wrote: > > Thanks for the res

Re: [Elecraft] K3/K3s keying with bugs, ponderings

ping. https://www.eejournal.com/article/ultimate-guide-to-switch-debounce-part-4/ <https://www.eejournal.com/article/ultimate-guide-to-switch-debounce-part-4/> https://morsecode.world/international/timing.html <https://morsecode.world/international/timing.html> wunder K6WRU Walt

Re: [Elecraft] Speaker upgrade

cabinets. I have a single Optimus PRO-X44AV for my Lowe HF-150, I should probable get a pair for the KX3. Similar speakers are the Optimus 77, the Minimus 7, and so on. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 24, 2021, at 8:50 AM, NJMike wr

Re: [Elecraft] KX2 Questions

so you need to pick a voltage to get a good answer for that. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 13, 2021, at 8:03 AM, djchase wrote: > > I am a long time CW operator, but new to this group. I am considering > purchasing a KX2, but

Re: [Elecraft] Where are the K4 reviews?

://www.nbcnews.com/business/autos/chips-seating-foam-plastics-parts-shortages-continue-cripple-auto-industry-n1261773 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 31, 2021, at 10:34 AM, j...@kk9a.com wrote: > > The corona virus may have dela

Re: [Elecraft] RUMlog controls K4

SkookumLogger is a contest-oriented logging program from K1GQ. https://www.k1gq.com/SkookumLogger/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 30, 2021, at 4:33 PM, Rick Tavan wrote: > > FWIW, I have very little experience with RUMlog (or Skookum Log

Re: [Elecraft] Questions on KXBC3 charging mechanism

For example, to charge fully depleted 2500 mAH cells: 1.2 X 2500 / 200 = 15 hours (Set charger for 16 hours) https://ftp.elecraft.com/KX3/Manuals%20Downloads/E740167%20Elecraft%20KXBC3%20Installation%20and%20Operation%20Rev%20B1.pdf wunder K6WRU Walter Underwood CM87wj http

  1   2   3   4   5   6   7   8   9   10   >