Re: [Elecraft] separating RFI from band noise, PX3

On Fri,3/25/2016 4:29 PM, Greg Troxel wrote: Jim Brown writes: Yet another example of a switch-mode power supply. Here's a preliminary version of k9yc.com/KillingReceiveNoise.pdf that might help. I see you mention a 10 dB increase in levels between band closed

[Elecraft] K3, KX-1 Inductors

My K3 hasn't traveled much, but if it did, I'd be very concerned about all the inductors supported only by their leads. It seems certain that vibration would result in leads breaking. However, there's a note in the KX-1 assembly manual specifically warning against fastening the inductors to

Re: [Elecraft] Delayed Options

Yes, that’s correct. Autocorrect strikes again … :-) Grant NQ5T K3 #2091, KX3 #8342 > On Mar 25, 2016, at 10:18 PM, K9ZTV wrote: > > The name you're looking for is eneloop pro (all lower case). > > K9ZTV > > >> On Mar 25, 2016, at 7:36 PM, GRANT YOUNGMAN

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

I had this problem in spades finding an antenna to use on my Miata with a Yeasu FTM-10R, which does 2M and 70Ccm along with AM and FM broadcast. The FTM-10R manual says, “NOTE: An antenna designed with a matching device that forms a low DC resistance to ground may have poor recep on on the AM

Re: [Elecraft] Delayed Options

Continuous “trickle charging” is neither necessary nor desired if you use low self-discharge NiMH cells. The preferred ones around here are Envelop Pros — 2550 mah, and they will retain 75-85% of their charge for a year or more in storage. They cost a bit more than the cheap stuff, but you

[Elecraft] separating RFI from band noise, PX3

Jim Brown writes: > Yet another example of a switch-mode power supply. Here's a > preliminary version of k9yc.com/KillingReceiveNoise.pdf that might > help. I see you mention a 10 dB increase in levels between band closed and band open, with the notion that if you

[Elecraft] K3 <--> K3 via RemoteRig: Audio recording

Hoping someone knows: If I am logged into my remote K3 via RemoteRig and I tap REC M1 on my control K3, will it record my mic audio on the remote K3? If so, will tapping M1 on my control K3 play that audio on the air from the remote K3? 73, Fred K6DGW - Northern California Contest Club -

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

OR buy a 5/8 wave base-loaded 2m mobile whip - loads on 50-MHz very nicely. That's an old trick for dual-band 6m/2m use. Try brands like Larsen or Maxrad. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com This only works for a 5/8

Re: [Elecraft] OT -- J-38 part needed . . . OT

Something I should add that I've done in the past when it comes to insulating washers that do not have any significant voltage to them, as well as washers used to keep paint intact when a screw is tightened, is use plastic milk jug material. you can easily cut the perimeter with scissors or if

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Since folks are talking adding a top hat or base loading coil, why not just extend the length of the vertical to a full 1/4 wavelength? 1/4WL = 248/50.1 MHz = 4.95 feet (59, 3/8-inch). Connect a small alligator clip to a 11-inch piece of hookup wire and suspend the wire with a piece of cord

Re: [Elecraft] OT -- J-38 part needed . . . OT

Oops, that was meant for Richards. -Original Message- From: Ron D'Eau Claire [mailto:r...@cobi.biz] Sent: Friday, March 25, 2016 1:34 PM To: 'Kevin Cozens'; 'elecraft@mailman.qth.net' Subject: RE: [Elecraft] OT -- J-38 part needed . . . OT Hello Kevin: You can't have the washers out

Re: [Elecraft] OT -- J-38 part needed . . . OT

Hello Kevin: You can't have the washers out of my trusty J38 but I have a suggestion. I have gotten away with just substituting flat fibre washers in such places. I realize they don't have the "lip" that keeps the screw centered in the hole, but in normal use there isn't enough pressure on it

Re: [Elecraft] OT -- J-38 part needed . . . OT

I think it's just called a shoulder washer or shoulder spacer. Eric KE6US On 3/25/2016 11:18 AM, Richards wrote: I am restoring a J-38 key. I have all the parts EXCEPT the little insulating washers __ Elecraft mailing list Home:

Re: [Elecraft] OT -- J-38 part needed . . . OT

You can find them at some Ace Hardware stores, but they are nylon so they won't match the color of the originals. Unless the particular key has historical value, that shouldn't matter. You'll have to find an Ace that isn't all yuppified trying to compete with big box stores. Find an old

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

> But I can testify that from my experience working QRP in major DX contests, a > few dB can be the difference between making a QSO or not, mostly based on the > noise level at the other end. And 7+ dB is a LOT. That's true. But when I'm out hiking, doing quick deployments, I'm willing to

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

On Fri,3/25/2016 9:31 AM, Wayne Burdick wrote: Jim Brown wrote: >A #22 wire taped to a telescoping fiberglass pole can easily be wedged between the seat and the top of a typical picnic table... True enough, but the whip, when collapsed, is a lot shorter. No

[Elecraft] RARSfest - booth assistance requested

For hams in and around the Raleigh, NC area. Elecraft will have a booth at RARSfest again this year. April 2 in the Jim Graham Building of the NC State Fairgrounds. If any of you are in the area and could spend a half hour or an hour assisting at the booth, that would be appreciated. All

Re: [Elecraft] Elecraft Digest, Vol 143, Issue 28

28. OT -- J-38 part needed . . . OT (Richards) 29. Re: OT -- J-38 part needed . . . OT (Kevin Cozens) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must be a subscriber to post.

Re: [Elecraft] OT -- J-38 part needed . . . OT

On 16-03-25 02:18 PM, Richards wrote: I am restoring a J-38 key. I have all the parts EXCEPT the little insulating washers that insulate one of the inside binding post from the base/trunion piece. [snip] Any clue where I can find them? OR a suggestion as to what I can use, instead ? If you

[Elecraft] OT -- J-38 part needed . . . OT

Greetings - I am restoring a J-38 key. I have all the parts EXCEPT the little insulating washers that insulate one of the inside binding post from the base/trunion piece. They key, as it is, shows a continuous short. Any clue where I can find them? OR a suggestion as to what I can use,

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Jim Brown wrote: > A #22 wire taped to a telescoping fiberglass pole can easily be wedged > between the seat and the top of a typical picnic table... True enough, but the whip, when collapsed, is a lot shorter. Wayne N6KR

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

I'm quoting your entire message because it's exactly right on all counts. 73, Jim K9YC On Fri,3/25/2016 8:44 AM, GRANT YOUNGMAN wrote: Raising the counterpoise a foot or more above ground rather than just throwing it on the ground will have the effect of reducing ground losses and getting

Re: [Elecraft] PX3 BETA Firmware 1.42 Now Available

Hi Paul / N6HZ I’ve downloaded the beta version 1.42. And I tried to install the beta version, but the PX3 will become off. I tried to install the current version, the PX3 does not turn off. Best regard, Nakamura / JE0LFI __ Elecraft

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Yes, any antenna that's deployed beats one that isn't. :) But a #22 wire taped to a telescoping fiberglass pole can easily be wedged between the seat and the top of a typical picnic table, and another #22 laid on the ground. There's a photo on my qrz.com page of me doing exactly that from a

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Just a minor point. Raising the counterpoise a foot or more above ground rather than just throwing it on the ground will have the effect of reducing ground losses and getting more signal radiated. So rather than just toss the counterpoise wire on the ground, it’s a good thing to keep it

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

It's all about making contacts anyway you can and having fun doing it! Gene, N9TF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Friday, March 25, 2016 10:00 AM To: j...@audiosystemsgroup.com Cc: elecraft@mailman.qth.net

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Jim, Like I implied in my posting, portable operation is often more about convenience than signal strength. Your estimate of around 7 dB sounds reasonable. That's about 1.5 S-units, to use the vernacular. When a band is open, this loss still allows a lot of contacts to be made. Example: A

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

Thanks for the Mac pointer and advice. Now to see if I can find enough time to do some modeling. I do software stuff and spend a lot of time in the "Console" -- Windows version of that is just so clunky... shudder -- At least the mac is Unix like so matches all the servers with run Linux. Don't

Re: [Elecraft] Too much of a good thing is just fine

There is truth to the boat thing... Anyone here interested in buying a 1978 San Juan 28 sailboat? She has been very well maintained. Currently she is in Saint Joseph, MI. On Thu, 2016-03-24 at 21:56 -0500, Kevin Stover wrote: > Na, it could be worse. > You could be buying or building boats. >

Re: [Elecraft] Strong recommendation: MFJ 18xx-series single-band whips for KX3, etc.

The place to look for Mac ham radio stuff is . I have used Koc Chen's cocoaNEC for antenna modelling. It is quite usable. [Unlike Jim, I haven't been able to recover from developing software for Windows