[Elecraft] looking for unbuilt KX1 kit

Hi, I am looking for unbuilt KX1 kit. Please contact me off list if you would like to sell one. -- Vladimir __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] EFHW

What I'd do if I was carrying it all on my back is take about 3 different lengths of wire with banana plugs on end, and banana jacks on the other. Use one as a counterpoise if needed. Use one or two as the radiator, depending on how well it tunes. You won't be using a resonant antenna

Re: [Elecraft] EFHW

On occasion I've run into RF in my KX3 when using a coax to feed random length antenna. The symptom was that the radio wouldn't transmit with anything other than trivial power, even though the tuner matched easily. A quick choke wound out of the coax helped a little, but the Elecraft BL2 stopped

Re: [Elecraft] EFHW

Here's the old trade-off between radiating efficiency and ease of matching for an end fed wire. The EFHW is more efficient, because little power goes into the ground system, but its high impedance is harder to match. A wire of a different length may be easier to match, but more power goes

Re: [Elecraft] EFHW

Just a reminder, folks. An End-Fed Half-Wave is a 1/2 wave antenna on the frequency of operation. If it's not a half-wave, then it's a non-resonant wire. Elecraft tuners do a great job tuning non-resonant wires. They won't tune an End-Fed Half-Wave without some help, like a 9:1 un-un. So,

Re: [Elecraft] Considering KPA500/KAT500 Combo with Flex 6500

Thanks for your advice everyone. I just ordered the combo KPA/KAT package. Now comes the long wait. Is it here yet? 73, Kev K4VD On Fri, Feb 10, 2017 at 12:06 PM, Al K0VM wrote: > Kev, > >I use Elecrafts KXUSBa USB to 3.5 serial for the KAT500 to PC/Flex. And > USB to

Re: [Elecraft] KFL3C-200 Filter

Don is correct. I have the KFL3C-200 and it is marked on the filter itself. 73, Wayne K2DT -Original Message- Stuart, Look on the filter itself. The offset should be marked on the paper tag affixed to the filter. I don't know about the new 6 pole filter, but that is true for the 5

[Elecraft] Multiple radios with KAT500/KPA combo

I have a setup with 4 different radios on the bench and I'd like to use them all with my KAT500 and KPA500. One of the radios is a K3. The others of course all have PTT outputs. I suppose there is no way to do this short of making a switch box with all PTT lines from the 4 radios and a single

Re: [Elecraft] (KX1) A Story for a Winter Day in NY

On 2/10/2017 18:27, Bill Frantz wrote: I noticed in my N8XJK Boost Regulator that they had scraped the ID numbers off all the ICs. Now that's cheesy, and will make it harder to fix when both they and it are belly up. I've never understood that: Anyone with the knowledge and determination to

Re: [Elecraft] (KX1) A Story for a Winter Day in NY

Let me answer for myself. I want a schematic for both fixing it and learning how it works. I don't really think I will learn much about how it works from the schematic because most of how it works is in the firmware and not the hardware. As for fixing things, I have made repairs to both my K3

Re: [Elecraft] Multiple radios with KAT500/KPA combo

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Re: [Elecraft] EFHW

Perfect explanation to help clarify all the "end fed" confusion. Random is not EFHW! EFHW must be cut at/very near frequency to work with a "tuned" matching circuit. There's so much misinformation, with vendors also making good bucks on EFHW intereset. Lots of "stuff" works but is it

Re: [Elecraft] Multiple radios with KAT500/KPA combo

I wonder if you could just use diodes From: Richard Lawn To: elecraft@mailman.qth.net Sent: Friday, February 10, 2017 10:00 PM Subject: [Elecraft] Multiple radios with KAT500/KPA combo I have a setup with 4 different radios on the bench and I'd like to use

Re: [Elecraft] Multiple radios with KAT500/KPA combo

I would run the single PTT to the ATU rather than the amp, and a single PTT line to the amp from the ATU. The KAT500 needs to be able to break the PA key line to tune (switch small relays) at less than the full output of the PA. 73 de Dick, K6KR > On Feb 10, 2017, at 21:00, Richard Lawn

Re: [Elecraft] EFHW

Brian, If your end fed antenna is actually a halfwave (which is what EFHW means), the answer is no. The solution for portable work is to use a length that is not a halfwave - 58 feet is known to work well for 40 thru 10 meters when used with a 13 foot counterpoise. Double the lengths if

[Elecraft] Interfacing a LINX 7" Windows tablet to the KX3

Hi all, I finally got to translate an article I wrote about using FLDIGI (or any other Windows program) on a cheap LINX 7" tablet running Windows 8, and interfacing it to a KX3. The info may be useful for other tablets/phones with a 4-pin TRRS connector, and any Android or iOS software.

[Elecraft] FS: XV50 transverter

FS: XV50 transverter with manual Hasn’t seen any use since i upgraded to a K3S Excellent condition $250 including shipping in CONUS Mike W1BNC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] KX1 discontinued

It is indeed a sad but inevitable occurrence, time and technology move forward ! The KX1 was my first venture into the world of Elecraft, I bought mine in 2010 and still use it, it has gone everywhere with me in my travels, from mountain tops to kayak camping in the Everglades. I've owned the

[Elecraft] Early Morning QRPing on 80 Meters

Hi all, While Ed AB8DF is on vacation I am stepping in until his return in 1 week to keep this great thing growing. Today was indeed another good day as I worked 4 stations from my qth in Manitou Springs, CO. I am running a K3 at 5 watts into an end fed half wave up about 30 feet. I worked:

Re: [Elecraft] (KX1) A Story for a Winter Day in NY

Mike, I find this a very curious belief. Do you want a schematic to know how the thing works, or how to repair it. If you only want to know how the radio works, would a block diagram and a fairly detailed explanation from Wayne be enough (given they want to protect their design as much as

Re: [Elecraft] EFHW

Speaking of baluns or un-un's... I'm about to assemble a BL2 which is a 4:1. Will that be enough to bring an End Fed Half Wave (EFHW) within tuning range of my KX3 ATU? I'm going to be ve3bwp/hi9 QRP week after next and hoping to try a couple of different length end feds into one of the trees