Re: [Elecraft] Lightening damage

I'm trying to avoid taking anyone's side on this discussion. I wanted to say that I worked for a company that had towers throughout the state which were several hundred feet tall. Over the years, I only saw one that took a hit. The company was so certain their grounding specs had not been

Re: [Elecraft] Failing K3 at 3C0L

This may help readers understand what the energy can be like on a nearby antenna. I was having a qso using my quarter wave inverted-L on 160 meters at 100 watts, and at the same time building a tuner. I went to connect the ladder line from my 80 meter loop that was not parallel to the L, but

Re: [Elecraft] P3: Something I find handy

FWIW, I have posted something about this before, and this will be my last, but I want to pass the word again. I have the MFJ-212, but other similar devices should work also. It makes having a P3 even better. Before I bought my P3, I had been using a MFJ-212 MatchMaker to help me adjust my

Re: [Elecraft] OT: Whole House Generator - Update

Charlie, The bottom paragraph of your post caught my eye. Transfer switch type can depend upon a generator’s locale. I have seen outdoor generators hard packed with snow internally. I feel better about examining things before start-up. So for home use, I favor manual control. With a manual

Re: [Elecraft] Dusting off the old K3 & Considering a KAT3A

I snipped as much as I could to shorten this up. See below. I think the problem lies in part that early manuals taught antenna theory by starting out with a random wire and a simple L tuner as you say, at the antenna end of the transmission line. The purpose was to add inductance or

[Elecraft] OT: Lead acid battery voltages, and battery maintainers

There was a recent thread about lead acid battery voltages relating to K type radio usage. I wanted to make mention that I had a lead acid battery last in one of my cars for 12 years without ever failing, and then I carelessly let it freeze up one harsh Minnesota winter. I always wondered why

Re: [Elecraft] Reflector change?

Ditto Rich, n0ce Sent from Mail for Windows 10 From: Charlie T, K3ICH Sent: Saturday, August 19, 2017 11:24 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Reflector change? Don't

Re: [Elecraft] RX antenna protection

I just read Ignacy’s post telling that the K3 receive ant input has a RF activated relay. I’m glad to see that. Rich, n0ce From: Richard Fjeld<mailto:rpfj...@outlook.com> Sent: Tuesday, August 15, 2017 12:00 PM To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>; elecraft@mai

Re: [Elecraft] RX antenna protection

I haven’t been following this, and just noticed it, so I hope I am in sync with this. Just a note to say that years ago, I had a B Electronic Antenna Switch (I think it was called) that had one or two tubes in it. It worked perfectly to bias the receive completely and immediately as soon as

[Elecraft] OT: (Inductively coupled, balanced tuner) Need info offline

I have acquired what once was an old, heavy duty, inductively coupled balanced tuner that needs to be completely rebuilt. It looks like it had never been incased, either. The parts can handle some power. I only have 100 watts, but I would like to see how the individual coils perform compared to

[Elecraft] OT: Article on Web pertaining to Telecommunications.

Maybe you saw this. They say the applications are near infinite. Phys.org: A 100-year-old physics problem has been solved. http://google.com/newsstand/s/CBIwq7GPnjU Rich, n0ce __ Elecraft mailing list Home:

Re: [Elecraft] OT Learning Morse anew

The guys I looked up to were the radio ops on ship. They sat at a typewriter and had to type perfectly as they copied perfectly. Rich, n0ce From: Ron D'Eau Claire Sent: Monday, June 12, 2017 6:34 PM To: 'KENT TRIMBLE';

Re: [Elecraft] Fire in the house li-ion

Just a note to say I’m still thinking about the information from this thread, and I’m glad to learn of fires while a Lithium type battery discharges. I had no idea they would do that, and it takes the fun out of having them. I had bought a balance charger and a voltage monitor, and low voltage

Re: [Elecraft] Beam antenna question

I had a TA33Jr back in the 70’s when the sun cycle was good. I had a Ten-Tec Argonaut QRP rig and worked a lot of DX with it BUT conditions were very good. Note is was only for three bands. I second what Vic is saying, though I am speaking about hex beams in general. Hex beams are a good

Re: [Elecraft] Fire in the house li-ion

Walter, your point is well taken. The original post needs to be studied. This thread has been good to increase my awareness. Thanks for the bandwidth, Rich, n0ce From: Walter Underwood Sent: Friday, May 19, 2017 12:29 AM To:

Re: [Elecraft] Fire in the house li-ion

As Kevin, K4VD wrote: “Maybe I missed this in the thread but can someone cite an authoritative and maybe trustworthy source for Lithium battery safety? So many old spouse tales seem to have grown up around this technology.” And my answer is: Yes, I agree. The only things I have picked up on,

Re: [Elecraft] Fire in the house li-ion

Thank you very much for this advice. I have often heard of fires due to Li-on batteries, but I have no idea of the nature of the ‘fire’. In other words, do they burn, or do they explode scattering ignited fragments. Knowing this would help in finding a safe container for charging them. It

Re: [Elecraft] Ground rod through concrete thread?

I have always thought the best way to avoid a lightning strike is to bleed off any build up of energy that may be on the antenna. Many have seen this video of the two guys climbing a 1768 foot TV antenna tower. It clearly shows devices to dissipate energy. There is one right at the very top

Re: [Elecraft] OT: Ground rods and concrete

Just a comment on myth controversy when dealing with Lightning and grounding topics. I know guys that are doing all the wrong things with their practices. They can't be persuaded otherwise. Yet, the odds have favored them for years. That reinforces their thinking that they are right and

Re: [Elecraft] OT; electrical safety

Maybe this applies. We have buried electrical service, but I don't think it matters. I have been told the NEC now calls for four conductor service to include a ground wire from the transformer. I depend on a ground tree. I like the perimeter wire Don, w3fpr describes. Dick, n0ce On

Re: [Elecraft] OT; Feedline question

, and using a manual tuner, I thought I'd be okay to change the spacer dims, but I wondered if I was over-looking something. Thanks again, Dick, n0ce On 4/15/2017 11:39 AM, Richard Fjeld wrote: > Forgive me for the OT, but there are many antenna people here above my > pay-grade. >

[Elecraft] OT; Feedline question

Forgive me for the OT, but there are many antenna people here above my pay-grade. I need to replace the spacers on my ladder line. If I deviate from the standard spacer length for impedance (separation between conductors), are there problems I'm not thinking of? I use a quality manual tuner,

Re: [Elecraft] OT: anti-static mat advice

That is unusual. I am surprised it is made of rubber unless it is for the floor, in which case rubber may be better. I bought a mat about a year ago that seems to be made of a vinyl-like material. Dick, n0ce On 4/5/2017 11:56 AM, David Cutter wrote: > Just received a new black mat and it has

Re: [Elecraft] OT; New technology/Graphene

Oh, to be younger... On 3/31/2017 3:21 PM, Wayne Burdick wrote: > The instant high-power-density graphene ultra capacitors become available at > reasonable cost, we’ll be designing them into our radios. Could be the > biggest breakthrough since the Leyden jar. > > 73, > Wayne > N6KR >

Re: [Elecraft] OT; New technology/Graphene

Here is another video about Graphene that is much nicer to look at. : ) https://www.youtube.com/watch?v=c4oW6PcOUtc On a serious note, think about how it could change the hobby. Her closing statement is good. On 3/30/2017 4:22 PM, Richard Fjeld wrote: (If this has been mentioned before, I

[Elecraft] OT; New technology/Graphene

(If this has been mentioned before, I apologize.) In looking for information on new battery technology, I found some interesting talks on YouTube about Graphene tied to battery development. Graphene is revolutionary. Relative to an Electron, the thickness of Graphene is said to be two

Re: [Elecraft] K3/K3s; Digital modes, specifically DV

There are several FreeDV videos on YouTube. Here is one that is a quick start guide. I don't know if there are restrictions for posting links. https://www.youtube.com/watch?v=zijJ556cs08 Dick, n0ce On 3/28/2017 8:00 PM, Matt Zilmer wrote: > I loaded FreeDV today, on an Ubuntu i5-64bit

Re: [Elecraft] K3/K3s; Digital modes, specifically DV

Another fellow about 125 miles away experimented with me on 75 meters during a summer evening in conditions we would not have wanted to operate in otherwise. We were surprised to find that fading was more of a problem. Dick, n0ce On 3/28/2017 10:57 AM, Brian Pietrzyk wrote: > I second this!

[Elecraft] K3/K3s; Digital modes, specifically DV

Greetings to all, The K3/K3s is an excellent radio for digital modes due to the ease of interfacing with a computer if desired. A computer is not even needed for some digital modes, and I have tried that successfully. I have mentioned in the past that I had tried the free software for

Re: [Elecraft] KX3 update utility download removed (i.e. blocked) by Norton Internet Security in Windows 7

The first thing I do when I buy a new computer is to un-install any third party virus/security software that is on it, before it can become embedded. I am very satisfied with Windows Defender. It has surprised me a couple times by catching Trojans with a high warning. Dick, n0ce On

Re: [Elecraft] Elecraft: OT; New Lithiom battery

. Thanks by the way, Dick, n0ce On 3/10/2017 10:43 AM, David Christ wrote: > Is this what you are referring to? > > <https://www.extremetech.com/extreme/245490-new-solid-state-battery-chemistry-glass-electrolyte-same-guy-pioneered-lithium-ion-cells> > > >> On Mar 10,

[Elecraft] Elecraft: OT; New Lithiom battery

There are several reports being circulated today about the inventor of the Li-on battery. The reports say 94 year old John B. Goodenough has invented a new Lithium battery that will have three times the capacity, 1200 charge/discharge cycles, and be good down to -76 F. Dick, n0ce --

Re: [Elecraft] Chinese ebay amps for KX3

The way the wire is wound through the tubes in the photo reminds me of the 100W PA section in the Heathkit HW/SB-104 transceiver. Dick, n0ce On 2/20/2017 5:03 AM, Hajo Dezelski wrote: > Hello, > > I use this one: > http://pa-11019.blogspot.de/2016/11/diy-kits-70w-ssb-linear-hf-power.html > and

Re: [Elecraft] OT: be careful what you open

FWIW, I've had the 'UN-deliverable package' email, but Windows Defender warned me. I recognized it as a phony about the same time. Still, I was impressed with Defender. I've been getting several phone calls from the Ransom-ware people, and I tell them they should be ashamed of themselves.

Re: [Elecraft] power issues

I find where the voltage drop is much like checking the drop across a resistor in circuit. ie. use a volt-meter across each end of the segment under test. (The volt-meter is parallel to the segment being tested) It may be just a poor connection, or not. Dick, n0ce On 2/4/2017 6:17 PM,

Re: [Elecraft] 9:1 Balun AND "random antennas"

Jim, If you don't object, I'd like to save this and forward to people as arguments develop on these subjects. I wish you had touched on '4:1 baluns'. Except for this group, so many people I talk to think a balun should be 4:1, even in their tuners. I think it is DX Engineering that

Re: [Elecraft] 1 5/8 inch hard line FOR SALE

FWIW, I have two pieces of 1 5/8 inch hard line that are new, and have been stored in-doors. As near as I can determine without uncoiling it, I calculate about 75 feet for each piece. I was planning to make my own connectors, but I have not had an application that would utilize the hard

[Elecraft] K3: past chirp report

A few weeks ago, someone had received a chirp report. Did that ever get resolved? Dick, n0ce -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Battery Leakage

I like using Lithium-Ion batteries in a variety of sizes. But having read about the possibility of fires, I have moved my spares to a metal ammo box. My flashlights are metal. Cell phones and such are not metal so I try to keep them away from flammables when unattended. However, I noticed

Re: [Elecraft] Elecraft Website Hacked?

I agree. I got rid of Chrome for the same reasons you describe. The latest Firefox is good. Dick, n0ce On 1/3/2017 7:46 AM, Don Wilhelm wrote: > David, > > I access the Elecraft website 3 to 4 times a day. Mainly the manuals > and the order pages, and have never had a problem. I use

Re: [Elecraft] Coaxial Transfer Switches

I just bought a DPDT toggle switch to replace a winch control with push buttons. The guy at the counter said his catalog specs showed 50 A at 12 volts. That seems hard to believe, but it seems rugged and I needed it now. I bought it at NAPA auto parts. It was about $12 incl sales tax. One

Re: [Elecraft] {OT} - Variation on use of a coaxial switch (stan levandowski)

This sounds the same, and I made it to protect the front end of each radio by switching the radio not being tested to my dummy load in case one of the radios should transmit. I intended my switch for receive comparisons. I am surprised the commercial switches can handle a kilowatt and provide

Re: [Elecraft] {OT} - Variation on use of a coaxial switch (stan levandowski)

Years ago, I built such a switch to prevent accidents should one radio transmit when comparing two radios. It is basically an a/b switch such that a radio became the active radio by switching the antenna to it, and simultaneously switching the dummy load to the inactive radio. Neither radio is

Re: [Elecraft] K3S Chirp?

/29/2016 21:40, Richard Fjeld wrote: >> If the key contacts did not make good contact, it caused a chirp. >> I would describe it as a 'dirty' sounding chirp, but it was a chirp. >> Other keys worked fine. >> >> Dick, n0ce > > Sounds like the old days of

Re: [Elecraft] K3S Chirp?

If the key contacts did not make good contact, it caused a chirp. I would describe it as a 'dirty' sounding chirp, but it was a chirp. Other keys worked fine. Dick, n0ce On 12/29/2016 5:57 PM, Nr4c wrote: > How? > > Sent from my iPhone > ...nr4c. bill > > >> On Dec 29, 2

Re: [Elecraft] K3S Chirp?

I once had a key that was prone to cause chirp. Dick, n0ce > On 12/29/2016 3:27 PM, Doug Smith wrote: >> I was in the CW SS in November using my then new K3S with an ACOM >> 1500. All of which was *great*. >> >> But, then, I received an Official Observer Advisory Notice that I was >>

Re: [Elecraft] Small QRP antenna

With reference to below, I have a question please. I put up a quarter wave inverted-L for 160 meters. My only counterpoise is the ground rods at the base of the tower. I wasn't expecting much, but it does so well I'd like to add a decent counterpoise. If I bury a quarter wave wire, would it

Re: [Elecraft] Dummy loads for dummies

FWIW, comments to consider about open wire feedline from my experience: Window line has shattered in the cold winter winds. Frost, snow, and ice easily accumulates. It catches the wind easily. On the plus side, window line conductors do not fold over on each other. Conductors stay evenly

Re: [Elecraft] K3 with P3

As I remember, the P3 is un-affected by settings on the K3. Nice if you use the RF gain control, etc. As for the signals rising and falling in S units because of a stronger signal, I am at a loss to explain at the moment. Dick, n0ce On 12/12/2016 8:37 AM, GW4DVB wrote: > Hi... I have a K3

Re: [Elecraft] OT: Fixing Slow Internet

FWIW, I had an interesting, but frustrating, experience just recently. My internet would get so slow that we would need to quit streaming during part of a movie, etc. At times, it would speed test at 0.02 Mbits. Another odd thing was, using an Ethernet cable was slower than Wifi at times. I

Re: [Elecraft] K3S/N1MM communications failed.

Peter, Maybe something like this could be related to your problem. I recently lost all my USB ports. They were dead. I let Windows 10 check for a better driver and it said I had the best one. So I went to the Lenovo website and put in my model and s/n, and it came up with a full screen to

Re: [Elecraft] K3 - static discharge

This is a huge problem in Minnesota due to the extreme cold causing humidity on the windows and turning to ice. It is difficult to hit a happy medium between avoiding static and wet windows. As for protecting my equipment, I have mentioned keeping a grounded wrist strap around an Altoids can

[Elecraft] K3: Cold Temps/ follow up

This is a follow up to recent post from someone in California who noticed less output when operating in below freezing temps. In the thread that followed, I mentioned the relationship of cold to gain and biasing to prevent thermal runaway. My last ARRL Handbook is a 2009 edition and 'Thermal

Re: [Elecraft] Windows Emulator

Just a suggestion; I don't know what all this would cost you, but $350 can buy a very decent Windows laptop. I bought a Lenovo with an i5 cpu and 8 Gb of ram plus an optical drive and more, from the Microsoft store for that amount. You have to watch for good offers. Dick, n0ce On

Re: [Elecraft] Antenna Question

(I am trying to get caught up on my email. Forgive me if this has been closed.) This caught my eye, and I agree. I have found when buying PL-259's that are made in a 'metric' country, there can be slight problems converting to the dimensions used in North America. I have chased SWR troubles

Re: [Elecraft] Cold K3

(Please note something is happening to my use of Thunderbird email client on my end, so I don't know what is being sent) Yes Bill, I agree with you and the voltage assessment. Back a number of years ago, mobile radios specified 13.8 Volts, and their performance was greatly reduced at 12 Volts

Re: [Elecraft] Cold K3

Igor, Minus 10C is about plus 14F, which is well below freezing. I would think that was adequate for a good test of output at cold temps. The experience that I cited about an early rig not operating for several minutes was at about minus 30C or colder. It may have been pre-vfo days, and could

Re: [Elecraft] Cold K3

Fred, What is the typical winter temp when the radio works, but no display? Also, you mentioned crystals not oscillating at cold temps. That may have been happening in the past when I thought it was due to low gain in the oscillator circuits. Thanks, Dick, n0ce On 10/6/2016 1:32 PM, Fred

Re: [Elecraft] Cold K3

Igor and Ed, I found your posts interesting. Thank you both. The original thread was about a K3 operating in the cold below freezing temps, and reduced power was observed. I think the question was asked if we could answer why. Someone posted with a question if the battery was cold. That may

Re: [Elecraft] Cold K3

On 10/4/2016 7:16 PM, Edward R Cole wrote: I've not tried running my K3 at outside temps, Hello Ed, I would caution you against trying your K3 in those temps. Minus 60 degrees F. is the coldest on record for Minnesota, and you experience far colder that that. The cold may do multiple things

Re: [Elecraft] Cold K3

Hi Bill, It is a characteristic of transistors. I have always been taught that they need to be biased down to about half their safe output to avoid thermal runaway. That was a long time ago. Things may have changed. As they heat up, they increase their amplification, as they amplify, they

Re: [Elecraft] Flex SDR panadapter

Maybe, but consider that some SDR pan adapters exhibit false images if not properly 'set up'. I can't think of a better description for it. Dick, n0ce On 9/23/2016 9:51 PM, Gary wrote: > Listening to a Flex operator making assertions that the k3 exhibited USB > spurs, 3khz above the 7.120

Re: [Elecraft] Anti-static Pads

G=1/R as I remember it. Yes, I wanted to reply to Alan's method, but I have been away. I wanted to re-read it to see if he allowed time to determine if a cap was leaky first. It was a clever idea. I have two Simpson's so I should be able to duplicate the test, if I can round up exposed

Re: [Elecraft] Anti-static Pads

I stand corrected. I didn't realize the resistance was that great. I need to think of a simple way to determine conductivity rather than measuring the resistance. Thanks for the answers. Dick, n0ce __ Elecraft mailing list Home:

Re: [Elecraft] Anti-static Pads

At this point; A Question about how to properly test an anti-static mat? I bought one last winter that appears to be totally non-conductive. I don't think it is my error. If others have mats like this, and are trusting them, I can see the possibility for failures. Dick, n0ce P.S. I like

Re: [Elecraft] K3 audio quality

I usually use a Yamaha CM500 headset which I like very much. For an external speaker, early into the hobby I made a nice walnut frame with grill cloth to house an old speaker from a Muntz TV, if you remember those. It became a keepsake. Dick, n0ce On 9/16/2016 8:49 AM, Charlie T, K3ICH

Re: [Elecraft] [OT] Jump starter system for K3 portable power?

Rick, I don't know if you will find something that meets all your requirements. Perhaps you will need to modify something that has the hardware you want. In my limited exposure to jump starters, I have found that the data is sometimes vague. I have had the same brand be both good, and sorry.

Re: [Elecraft] OT:. "High end operator"

Maybe 'astronaut'? Dick, n0ce On 9/5/2016 10:47 AM, Ken G Kopp wrote: > Someone please define "high end operator". > > Sounds like some form of snobbism worming it's way into the slang of the > hobby (;-) > > 73 > > K0PP > __ >

Re: [Elecraft] Heath kit and the Lazarus Loop

I seem to remember a 2 meter mobile that got recalled and shredded per FCC direction not long before the company closed down. Dick, n0ce Ohm sweet Ohm On 8/8/2016 2:47 PM, Dauer, Edward wrote: I remembered Heathkit as having first been an airframe manufacturer which got into electronics

Re: [Elecraft] OT: The Heathkit clocks are back!

Lazarus loop; I love it. Dick, n0ce On 8/8/2016 1:12 PM, John Pitz wrote: Unfortunately Heathkit seems to be stuck in some sort ofLazarus loop. -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] OT:. Tuner losses

Eric closed the G5RV thread, so I will change this subject as it is not related to the G5RV. On 8/5/2016 11:57 AM, Richard Fjeld wrote: On 8/4/2016 4:00 PM, Alan Bloom wrote: It's true that tuner losses are the manufacturers' dirty little secret. Loss is rarely specified, partly because

Re: [Elecraft] OT:. G5RV's

On 8/4/2016 4:00 PM, Alan Bloom wrote: It's true that tuner losses are the manufacturers' dirty little secret. Loss is rarely specified, partly because it can be pretty bad, and partly because it is hard to measure, but also because it is not constant - it depends on the particular impedance

Re: [Elecraft] K3: Using Linux - OT

That is what I was using. Dick, n0ce On 7/31/2016 11:38 PM, Phil Wheeler wrote: Edge is a bit lame until the new release (Tues is it?); won't take plug-ins, they say. I prefer Firefox :-) Phil W7OX On 7/31/16 9:17 PM, Richard Fjeld wrote: I agree with Guy, and want to add a comment; I

Re: [Elecraft] K3: Using Linux - OT

I agree with Guy, and want to add a comment; I have had a couple strange things happen. Both turned out to be due to running a non-Windows browser. Before you cuss out Windows 10, try the user groups for clues. Save yourself some time and make Microsoft Edge your default browser. Dick,

Re: [Elecraft] Cleaning a K3

I read about guys whose rigs were flooded a few years back, and they washed them in water and dried them somehow. Said they worked fine after that. Hard to imagine though. Dick, n0ce On 7/27/2016 1:15 PM, Fred Jensen wrote: My S3-line acquired a chronic case of creeping fungus on the

Re: [Elecraft] comparing P3, LP-Pan, SDRPlay, others?

Not all pan-adapters are created equal. Some suggestions; Compare the images of one to another. Look for images that are sluggish and exhibit a delay between what is heard and what is seen due to the computer involved. Also look for false images that are mirrored, etc. (That may take

Re: [Elecraft] Power has disappeared

I apologize for this, but being it's a new rig it has to be said; could there be any confusion in the antenna jack selection? I haven't followed how it is equipped. Dick, n0ce On 7/26/2016 7:48 PM, Chris Kimball wrote: I'm a new owner and all worked fine. After an absence of a few days I

Re: [Elecraft] Cleaning a K3

Be careful if using a vacuum cleaner. A static build-up can develop. I have seen it cause arcing. That may have been a hose with metal fittings. There is also a metal spring inside the hose that can conduct. Perhaps an attachment with a brush for the hose will avoid a discharge. Dick, n0ce

Re: [Elecraft] Power has disappeared

I don't think you stated, so I will ask; Did you check the circuit breaker in back? Dick, n0ce On 7/26/2016 7:48 PM, Chris Kimball wrote: I'm a new owner and all worked fine. After an absence of a few days I came back to no power out, or , at least, very little. Rig is the 100W version with

Re: [Elecraft] Elecraft grey in a rattle can?

Hey, while we are at it, would one of those hand-held electric sprayers work well enough to spray that Paint? Dick, n0ce On 7/26/2016 6:32 PM, Michael Bower wrote: Many years ago, I had a piece of Heathkit gear that needed a touch up. I took one of the side panels to Home Depot. They

Re: [Elecraft] K3 Transmitting CW in SSB mode

Phil, I use that feature on my K3, and I have done it many times. To answer #1, they say they hear me perfectly when we are on the same SSB frequency. It has been handy several times. To answer #2, I think they will be off by their offset frequency. Dick, n0ce On 7/25/2016 10:34 PM, Phil

Re: [Elecraft] Linear PS Recommendations

Hello David, (and Alan), and thanks to John for the link showing the added parts. David, your PS sounds very similar to the one I built, also in the 70's. Mine has four 3055's on very large heat sinks that are overkill, but I didn't know what to expect. It was at a time when we were going

Re: [Elecraft] Linear PS Recommendations

I was glad that I caught Jim's remark about blowing the 723 by being connected to a battery with the PS off. And also Myron's answer. Back in the tube TV days, I purchased a bare circuit board at Radio Shack, (I think). The board was similar to an Astron circuit board, but simpler. I

Re: [Elecraft] Power Supplies

Kevin, I will be interested in anything you find. I have a RS-50M and I am not aware of any noise as you describe. It may be my hearing. I do have a line isolator in-line left there from the days when I had a G5RV. That is the only time I have known of RFI. It was pretty bad. Dick, n0ce

Re: [Elecraft] deoxit

...@mailman.qth.net] On Behalf Of Richard Fjeld Sent: Tuesday, July 19, 2016 3:46 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] deoxit It is my opinion that with gold plated contacts, nothing should be needed. It is also my opinion **never** to touch gold plated contacts. (I keep some Caig DeoxIT

Re: [Elecraft] deoxit

It is my opinion that with gold plated contacts, nothing should be needed. It is also my opinion **never** to touch gold plated contacts. (I keep some Caig DeoxIT on hand.) Dick, n0ce On 7/18/2016 10:50 PM, Rich Assarabowski wrote: What's the consensus on the best stuff to use on all

Re: [Elecraft] deoxit

I think they also make a product for potentiometers called 'Fader lube' or something similar. Dick, n0ce On 7/17/2016 9:24 PM, Ron D'Eau Claire wrote: I use the canned stuff on noisy potentiometers where I give them a shot through one of the openings. On any contacts, I have a 2 oz bottle

Re: [Elecraft] deoxit

I think they also make a product for potentiometers called 'Fader lube' or something similar. Dick, n0ce On 7/17/2016 9:24 PM, Ron D'Eau Claire wrote: I use the canned stuff on noisy potentiometers where I give them a shot through one of the openings. On any contacts, I have a 2 oz bottle

Re: [Elecraft] Power Supplies

Kevin, As I mentioned, I think this will depend on the Voltage Regulation level in the receiver. The Elecraft gear operates down low in voltage pretty well. I have experienced what you describe with other gear I have owned, but I have not compared if a difference is heard when going from a

Re: [Elecraft] Fwd: Bioenno's July Promotion

Hi Guy, (Interesting, and nice writing, BTW) I share your experience with batteries, only from the Bell side of things. We ran the major switching centers you described. We had individual cells that held 50 gallons of acid in each cell. A graph was kept for each cell. They lasted many

Re: [Elecraft] Uninterruptible Power Supply for K3S

John, I haven't read all the replies yet. I'm sure you will get a variety of responses, such as mine. About 40 years ago when color TV's were more expensive, my neighborhood got a momentary hit in the power, and it came back with a voltage spike that took out too many TV's to count. To

Re: [Elecraft] Help sell me on the K3S

Reuben, I think Rob Sherwood answers this question best with his receiver ratings. Google Sherwood labs. Dick, n0ce On 7/3/2016 4:44 PM, Reuben Popp wrote: Hey everyone, happy early 4th to you and yours! I'm looking for a bit on input here. I've had my K2 now for quite some time now; built

Re: [Elecraft] K3 Equalizer comment

Yes, I have a narrow span like that programmed into one of the P3 buttons for quick selection. His audio was centered around 500-600 Hz. Several guys with pan adapters ultimately tried to help him. I signed off and let them work with him. I heard him the next day and his audio was better

Re: [Elecraft] K3 Equalizer comment

station had something like an AF generator audibly coupled to the microphone to do a freq run within the voice band at a constant audio level. Dick, n0ce On 5/21/2016 9:01 PM, Jim Brown wrote: On Sat,5/21/2016 7:54 AM, Richard Fjeld wrote: I was asked to help a ham get the transmit audio

Re: [Elecraft] RX eq

I like to use my RX EQ settings to reduce noise from static. Dick, n0ce On 5/21/2016 11:34 AM, Joe Subich, W4TV wrote: On 5/21/2016 11:11 AM, Fred Moore wrote: Well, that really sucks when you are moving between cw and other modes.. oh well, hopefully it will be added.. thanks for the

[Elecraft] K3 Equalizer comment

I'm not one to get mushy about my things. I try to remain objective, but I want to make the following comment; Because I have a pan adapter (P3), I was asked to help a ham get the transmit audio on his new import equalized. What an experience! It made me realize what a fine equalizer design

Re: [Elecraft] KX2 eHam Review

Have you considered using either 18650 or 14500 lithium ion batteries? They are rated at 3.7 volts, but I find when charged, they are typically about 4.2 volts. Three of them will be a bit over 12 volts. I have 18650 cells that are 9800 mAh each. There is another cell that is shorter, but I

Re: [Elecraft] circuit breaker

I have seen breakers let go for no apparent reason. It seemed like it was a mechanical failure in the breaker. Dick, n0ce On 5/16/2016 5:27 PM, Rick Bates (WA6NHC) wrote: Is it possible that it 'belched' and the power reset is what really fixed it? 73, Rick WA6NHC Tiny iPhone keypad,

Re: [Elecraft] Sherwood's receiver performance table updated

Here is a YouTube video of a K3 with a touch screen monitor. https://www.youtube.com/watch?v=6usy-0257NQ Dick, n0ce On 4/26/2016 4:16 PM, John Kramer wrote: Phil, in reality having a touch screen is not all that bad as you make out. You really need to try it. An advantage is that it reduces

Re: [Elecraft] [KX3] The Long Way 'Round to a Wooden Stand

Your weather sounds good to me. Here in Minnesota, I woke to snow on our 30 year old Cedar deck. Yes, Cedar is good. Dick, n0ce On 4/8/2016 5:31 AM, Joel Black wrote: It is Spring in Alabama. We are now in our fourth week of nice weather (other than our typical t-storms) but it won’t last.

  1   2   3   4   >