Re: [Elecraft] (OT) - portable radial idea?

Remember that the RF field flows *around* the conductor in addition to the RF current *in* the conductor. Having wires of different lengths in close proximity means that the RF field will tend to act as though the conductor simply changes its thickness rather than being two conductors of different

Re: [Elecraft] (OT) - portable radial idea?

I have a Chinese version of a Budipole type vertical that uses exactly that... ribbon cable cut to various resonate lengths for the elevated radials. Four as I remember. Works very well and quick to deploy and stow. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

Re: [Elecraft] K3S with more than one device on the Band Data signals

You could use a line buffer.Check this page http://www.kotarov.com/projects/k3-and-acom-2s1This is an adapter for acom 2S1 switch, but he also added a buffer  to drive more then one decoder, just use that part :-)BobYO8RNI From: NOEL POULIN To:

Re: [Elecraft] KX2 and Sherwood Eng. RX Performance Ranking?

Sometimes when I am doing portable QRP I have both my KX1 and my KX3. And, sometimes I would call CQ on the KX1 and work some stations and other times I would use the KX3. There are obvious physical differences between the KX3 and the KX1, I do not mean to compare them feature by feature.

Re: [Elecraft] (OT) - portable radial idea?

Hi Don and thanks for the suggestions. Yes, I already have a 67 foot doublet fed with window line as well as  simple wires and counterpoises in line with page 10 of the KXAT1 manual.  They work just fine.  No argument there. But I stumbled upon this "linear loaded" vertical antenna and

Re: [Elecraft] (OT) - portable radial idea?

Stan, It can be made to work, but will be a real "bear" to adjust to resonance unless you separate the ends. If you are feeding with 300 ohm twinlead, why not make a 66 foot long center fed dipole out of it. Alternately if this is for portable work, us no feedline at all - just a BNC to

Re: [Elecraft] (OT) - portable radial idea?

Stan, It can be made to work, but will be a real "bear" to adjust to resonance unless you separate the ends. If you are feeding with 300 ohm twinlead, why not make a 66 foot long center fed dipole out of it. Alternately if this is for portable work, us no feedline at all - just a BNC to

Re: [Elecraft] K3S with more than one device on the Band Data signals

Back a bit, I had the need to drive a remote switch and something else with the BCD band data. For me there was simple PIC based solution. BCD input to PIC. PIC programmed to switch to appropriate antennas . Input BCD data echoed to other PIC outputs. PIC outputs buffered by a ULN2003's

Re: [Elecraft] K3S with more than one device on the Band Data signals

As I recall, it is a standard LS TTL style open-drain driver, which means it has a fan out of about 10 LS loads. You should be able to connect several devices. Be sure they do not have pull-ups that are connected to higher that 5 volts (some band decoders have pull-ups to 12V). The K3 has

Re: [Elecraft] International Crystal is closing

And, a very early rig of mine, the STP-50, a low power 6 meter transmitter that was fun to use. With two tubes, an oscillator/multiplier and a PA. You were to supply 250-300 volts. 73, Barry K3NDM -- Original Message -- From: "WP4CW via Elecraft" To: "Wayne

Re: [Elecraft] International Crystal is closing

I believe if my memory serves me right, they produce the OX-2 oscillator kit, 100 mw on CW. I also enjoyed their PAX-1, 200 mw amp. WN6EDW, Ted, Gonzales, Ca Sent from my iPhone > On Mar 10, 2017, at 4:07 PM, Wayne Burdick wrote: > > We have multiple sources for all of our

Re: [Elecraft] BPF Bypass

Hi Brian, Thanks for the input. Yeah I know the bypass is not ideal (garbage, etc.), but for ALE scanning it would be better than hammering on the relays. It is possible to select the bypass of the BPFs, as the hardware was clearly designed to support this. But the docs don’t explain how to

[Elecraft] (OT) - portable radial idea?

I found the plans (June 2010 Elecraft Reflector) to build a 40/30/20 meter "linear loaded" portable antenna for my KX1 (using a crappie rod, 300 ohm twinlead for the radiator, a BL2 balun, and ribbon cable radials cut to 1/4 wavelength for each of the bands (16, 25 and 33 feet). My question

Re: [Elecraft] International Crystal is closing

We have multiple sources for all of our crystals and filters, and plenty of stock on hand. But we'll miss working with ICM. 73, Wayne N6KR On Mar 10, 2017, at 3:10 PM, "Ron D'Eau Claire" wrote: > Well, there is still AF4K who has a web presence making custom crystals in > the

Re: [Elecraft] International Crystal is closing

Cal Crystal's web site is still up 73 -- Lynn On 3/10/2017 3:10 PM, Ron D'Eau Claire wrote: Well, there is still AF4K who has a web presence making custom crystals in the FT-243, FT-241 and CR4U cases. Bliley is still around and on the web, making crystals, crystal oscillators and the

Re: [Elecraft] K3S with more than one device on the Band Data signals

Using band data mode, I've simultaneously driven both the KPA500 and a Top Ten Devices band decoder from a single K3 with no problems. 73, Bob, N6TV On Fri, Mar 10, 2017 at 2:38 PM, NOEL POULIN wrote: > Hi to all, > I am on the way to connect a Bandpasser2 (band data

Re: [Elecraft] KX2/KX3 phone ops during QRPTTF?

> Unlike past QRPTTF events, this one has the potential to include a lot of SSB > activity. In the pre-KX2/3 days most rigs used in this annual event were > CW-only. I hope non-CW owners of these rigs will consider participating this > year and, like NPOTA ops who used these rigs, make QRPTTF a

Re: [Elecraft] K3S with more than one device on the Band Data signals

On Fri,3/10/2017 2:38 PM, NOEL POULIN wrote: I wonder if the K3s can handle more than one device connected to the Band Data signals. My guess is that the answer is yes. I would expect the decoder you're driving to have a high-Z input. Also, study the manual for that unit. It's part of a

Re: [Elecraft] International Crystal is closing

Well, there is still AF4K who has a web presence making custom crystals in the FT-243, FT-241 and CR4U cases. Bliley is still around and on the web, making crystals, crystal oscillators and the like. Also JAN Crystals in Florida is still in business. 73, Ron AC7AC -Original

Re: [Elecraft] QRPGuys KX series paddles now available

Thank you, I was waiting for that one to come out. I just put together one of their standalone single paddle keys. From: Ken To: elecraft@mailman.qth.net Cc: Doug Hendricks Sent: Friday, March 10, 2017 11:00 AM Subject: [Elecraft] QRPGuys KX

[Elecraft] International Crystal is closing

I was first licensed a few miles away from ICM in September, 1951. Been to 10 N Lee in OKC several times 73 K0PP -- Forwarded message -- From: "Bob Novas" Date: Mar 10, 2017 14:25 Subject: [Elecraft] International Crystal is closing To:

[Elecraft] Electret microphone for K3

Sometime back I bought a W2ENY electret conversion kit for my Astatic mic but I seem to have lost the bias resistor/jumper that came with it and there’s no value specified in the instructions. I see that the bias resistor used with the Elecraft MH2 microphone is specified as 5K6. As I want to

[Elecraft] K3S with more than one device on the Band Data signals

Hi to all, I am on the way to connect a Bandpasser2 (band data mode) on a K3s. Later I would like also to connect a band decoder on the same radio to switch coaxial stubs. I wonder if the K3s can handle more than one device connected to the Band Data signals. I suppose that Elecraft band output

Re: [Elecraft] [OT] Question about power lines

Please answer on the list -- I have the same issues and would be interested in any comments. Thanks -- Lynn On 3/10/2017 1:38 PM, Al Lorona wrote: You can e-mail me privately to keep traffic down. __ Elecraft mailing list Home:

Re: [Elecraft] International Crystal is closing

I dropped them an e-mail "thank you" for their service to the radio industry extending back to my earliest Ham days. I could almost hear a "So long and thanks for all the fish" reply when I hit send. 73, Ron AC7AC -Original Message- From: Elecraft

Re: [Elecraft] International Crystal is closing

That’s too bad. I’ve bought a lot of crystals (for Drakes, Collins, and others) from these folks over the years. I wonder what other sources there are left out there? > On Mar 10, 2017, at 4:24 PM, Bob Novas wrote: > > Another ham oriented, US based company bites the

Re: [Elecraft] KX2/KX3 phone ops during QRPTTF?

+1 I'll be out there somewhere with either my KX3 or KX2 72, Dave AD6A -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John AE5X Sent: Friday, March 10, 2017 11:30 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KX2/KX3 phone ops during

[Elecraft] [OT] Question about power lines

One leg of a horizontal antenna has to, unfortunately, run parallel to the power lines at the back of a city lot. Will there be more pickup of electrical noise if that leg has a current maximum, or a current minimum on it, along the portion of the antenna closest to the power lines? You can

[Elecraft] International Crystal is closing

Another ham oriented, US based company bites the dust. https://www.icmfg.com/ It's a shame. I don't know if that affects any elecraft filters, but it does affect my old Drake boatanchors. Bob W3DK __ Elecraft mailing list Home:

Re: [Elecraft] KX2 and Sherwood Eng. RX Performance Ranking?

This was my point, its a nice to know but the fun factor of the radio speaks for itself. Its a permanent part of my portable toolkit now. Chris N6WM, ZF2CT and N6WM/KH6 and anywhere else that pops up on the vacatio...expedition list. ;-) From:

Re: [Elecraft] KX2 and Sherwood Eng. RX Performance Ranking?

Dave and Phil, All of what you say rings true but there is little reason not to have a discussion. We can always hit the delete button.The KX2 is very small, light weight with a big display designed for portable operation so of course the specifications will suffer some. I hope there

[Elecraft] KX2/KX3 phone ops during QRPTTF?

This year's QRP to the Field is 22 April: http://www.zianet.com/qrp/qrpttf/2017/ttf.htm Unlike past QRPTTF events, this one has the potential to include a lot of SSB activity. In the pre-KX2/3 days most rigs used in this annual event were CW-only. I hope non-CW owners of these rigs will

Re: [Elecraft] KX2 and Sherwood Eng. RX Performance Ranking?

Re "I just hope .. we don't go through an ad nauseam exchange ... ": You can dream, Dave ;-) 73, Phil W7OX On 3/10/17 11:05 AM, w7aqk wrote: Hi All, I'd be inclined to think the KX2 measurements won't knock your socks off. Unlike the KX3, which was designed to be a close competitor to K3

Re: [Elecraft] KX2 and Sherwood Eng. RX Performance Ranking?

Hi All, I'd be inclined to think the KX2 measurements won't knock your socks off. Unlike the KX3, which was designed to be a close competitor to K3 performance (a K3 in a smaller package), the KX2 is more a pared down version of the KX3, and some of that paring down probably affected the

Re: [Elecraft] K3S's built-in RTTY

Hi Don, If you're not using a PC, another option you have is to use the QRPworks K-Board. It was made exactly for this operation. You can send RTTY, PSK, or CW with a wireless or wired keyboard. You can send 20 messages or macros to control the rig. 200 named messages / macros can

Re: [Elecraft] K3 Power Supply Question

Folks - thanks for all the input. I think I may have found one of the culprits in the system - oxidation. I put everything back together the way it was to begin with so I could switch back and forth between the K3 and KX3 power displays. I have a KXPA100 behind the KX3 so the load on the MFJ

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

I hadn't seen this article yet, but it is the same person. One of the reports I read said he doesn't have the Cathode ready yet. His new battery is sometimes referred to as 'Lithium' but is said not to have Lithium in it. It doesn't explode, and it doesn't grow whiskers if charged to

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

Is this what you are referring to? > On Mar 10, 2017, at 10:29 AM, Richard Fjeld wrote: > > John B. Goodenough David K0LUM

[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 --

[Elecraft] QRPGuys KX series paddles now available

QRPGuys now has our KX Series Iambic and Single Lever paddles available at www.qrpguys.com. Drop in for a visit to check them out in our Keyers and Paddles menu and our other products. -- Ken LoCasale – wa4mnt Ken LoCasale – wa4mnt Be /Creative/... Don't be a "Passive Consumer" of someone

[Elecraft] K3 Power Supply Question

Yes large diameter cable is required if you want to keep the TX voltage high. I also replaced the Elecraft 12ga? supplied cable with 10 gauge when using the small switching power supply while traveling. I use 8 gauge at home since my cable is longer but it was tricky stuffing this into the tiny