Re: [Elecraft] KAT500 and KAT500 Utility Question

I don't believe that it has anything to do with whether or not a match can be reached. Some SWRs are simply too difficult to measure accurately, even with an error-corrected network analyzer. For near ideal reactances or very high or very low SWR, reflection measurements are inappropriate.

Re: [Elecraft] MAB boards for the K2?

Rueben, I brokered the last bunch of MAB boards. All have been sold. If there is interest, we can make another run of boards. I think I have a few parts left over but we can come up with full kits if anyone is interested in those. If you are interested in boards or kits let me know. Doug

Re: [Elecraft] KX3 auto tuner solution available after tune?

You can get the "C" value used by using the KX3 utility. -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-auto-tuner-solution-available-after-tune-tp7609929p7609947.html Sent from the Elecraft mailing list archive at Nabble.com.

Re: [Elecraft] KAT500 and KAT500 Utility Question

Some of what you say is true, but has nothing to do with the problem. Soapbox comment: Personally, I would (and do) rather use Heliax before I would ever use ladder line. On 11/4/2015 2:21 PM, Ken wrote: The results almost totally depend on the length of the ladder line. At certain lengths,

[Elecraft] MAB boards for the K2?

Does anyone know if any of the MAB board are still floating out there or does anyone have a spare for sale? http://www.genebitsystems.com/david/K2MiscAccessoryBoard/index.htm Thanks in advance as always, and 73 Reuben __ Elecraft

Re: [Elecraft] KAT500 and KAT500 Utility Question

The results almost totally depend on the length of the ladder line. At certain lengths, it will act as an impedance transformer and could load your 80m dipole quite well. An 80m dipole on 160 will have a low impedance at the feed point. A quarter wave of ladder line will transform that

[Elecraft] KAT500 and KAT500 Utility Question

First, this is a curiosity question about KAT500 utility only. I don’t intend to use my antenna on 160 meters. I use the KAT500 with my 80-meter dipole fed by ladder line and a 4:1 Balun to Coax for last 20 feet. This antenna works excellently in concert with the KAT500 for 80, 40, and 30

Re: [Elecraft] KAT500 and KAT500 Utility Question

On 11/4/2015 12:59 PM, Phil Hystad wrote: I use the KAT500 with my 80-meter dipole fed by ladder line and a 4:1 Balun to Coax for last 20 feet. This antenna works excellently in concert with the KAT500 for 80, 40, and 30 meter bands. I don’t use it with other bands. Feed point Z's:

[Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

A friend has a fairly recent K2 with the KAF2 audio filter option. He asked me to remove the KAF2, build the KDSP2 board and install it in his K2. This got me to thinking: I also have a K2 wiht the KAF2 installed. My friend works mainly SSB; I work main CW and digital modes. Is the DSP board

Re: [Elecraft] MAB boards for the K2?

Hi, I have some spare, uncut and unpopulated, MAB boards. I'd have to work out a price, but they are here if you want a couple. 73, Byron N6NUL On Wednesday, November 4, 2015, Doug Shields wrote: > Rueben, > I brokered the last bunch of MAB boards. All have been sold.

Re: [Elecraft] KX3 auto tuner solution available after tune?

Michael Blake wrote: > Does the KX3’s internal auto tuner have the ability to provide the tuned > solution like the Elecraft T1 QRP tuner does? Hi Michael, You can use the "AK;" command to get the KXAT3's relay states. The response format is AKaabbcc; where: aa =

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

David, The KAF2 is mainly for CW use. It provides a great peaking filter at the frequency that you have set it to (presumably your sidetone pitch). It also has a low pass filter that is in-circuit at all times. That can reduce band noise hiss for all modes. The KDSP2 also provides

Re: [Elecraft] MAB boards for the K2?

Hi Byron I would like at least one at the bare minimum however if you have a minimum order requirement I'm sure we can work something out for that as well. What are you asking per board? Thanks and 73 Reuben On Wed, Nov 4, 2015, 5:49 PM Byron Servies wrote: > Hi, > > I have

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

When I built my K2 a year and a half ago, I also had to decide between bare K2 vs KAF2 vs KDSP2, and went through the archives. In the end I went with the KDSP2, but some of the points I considered along the way: Bare K2: - built-in IF filters do work very well, but I read some reports that

Re: [Elecraft] MAB boards for the K2?

I'm interested. Brian Denley KB1VBF Sent from my iPad > On Nov 4, 2015, at 5:55 PM, Doug Shields wrote: > > Rueben, > I brokered the last bunch of MAB boards. All have been sold. If there > is interest, we can make another run of boards. I think I have a few parts >

[Elecraft] Bias and Dynamic Mics

On Wed,11/4/2015 5:43 AM, Charlie T, K3ICH wrote: If you ever wondered why a bias voltage can cause distortion in a dynamic microphone element, just consider what happens when you connect a DC source to a speaker. The voice coil move in one direction depending on the polarity. Now think of a

Re: [Elecraft] KAT500 and KAT500 Utility Question

Guys, read what he wrote, not what you think he wrote. He had a question about the operation of the metering in the KAT500, he wasn't looking for advice on antenna design or on the use of ladder line. If he wants that he can read my paper here: http://k6mhe.com/n7ws/Ladder_Line.pdf

Re: [Elecraft] KX3 auto tuner solution available after tune? [TYPO FIXED]

There was a typo in the byte information -- now fixed. Wayne * * * Michael Blake wrote: > Does the KX3’s internal auto tuner have the ability to provide the tuned > solution like the Elecraft T1 QRP tuner does? Hi Michael, You can use the "AK;" command to get the

Re: [Elecraft] KAT500 and KAT500 Utility Question

On Wed,11/4/2015 3:04 PM, Wes (N7WS) wrote: If he wants that he can read my paper here: http://k6mhe.com/n7ws/Ladder_Line.pdf By all means DO read and STUDY it -- it's a GREAT piece of work. 73, Jim K9YC __ Elecraft mailing list

Re: [Elecraft] MAB boards for the K2?

I would like one as well if you have enough. Brian KB1VBF Brian Denley KB1VBF Sent from my iPad > On Nov 4, 2015, at 6:58 PM, Reuben Popp wrote: > > Hi Byron > > I would like at least one at the bare minimum however if you have a minimum > order requirement I'm sure we

[Elecraft] WTB: KPA500

Anyone who can sell and ship used KPA500 to Tokyo with reasonable price please contact off the list. Tks in advance de JE1TRV, Atsu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

David, My K2 is long gone, but I can tell you about my experience with the DSP module. I operate mainly CW, and added the DSP option after having the K2 for over a year. For me, it was a mistake. The radio didn't sound as good as it did before adding it. I wound up taking it out and selling

Re: [Elecraft] KAT500 and KAT500 Utility Question

Wes… Thanks, you are exactly right. My curiosity is about what the KAT500 was doing and the value of the BYPASS SWR versus the values I saw of the Tuned (or, not tuned) SWR. Dick’s answer was right on and satisfied all my curiosity needs. Though thanks to all that took the time to write

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

I thought it was. A bit complicated to get adjusted just right, but there is/was a how-to doc at the Elecraft website which you might want to read, David. I say "thought" because now I use my K3 and KX3, though I still have my all-up K2; it's a keeper at this point. 73, Phil W7OX (in

Re: [Elecraft] MAB boards for the K2?

One of the connectors used for the MAB is no longer available. I can't remember exactly which one it is, but you better figure that one out before spending time and money on another MAB run. Chip AE5KA __ Elecraft mailing list Home:

Re: [Elecraft] Bias and Dynamic Mics

On Wed,11/4/2015 6:39 PM, Bob McGraw - K4TAX wrote: Yes, with any dynamic mike being used, set the bias to the off position Don Wilhelm says that some dynamic mics sold to hams DO get distorted with bias applied. Whether it's a poor mic or a saturated transformer, it's clearly better to turn

Re: [Elecraft] Bias and Dynamic Mics

While I agree with Jim, K9YC on this. Some dynamic mikes I've encountered do use a transformer to get the voltage level from the very low impedance Z element to a respectable output value. Running a bit of DC through the transformer on the secondary side could tend to cause some DC

[Elecraft] Microphone Setup

Don, Thanks to you, Richard, Gene, Charlie, Bob and Mitch for your constructive and educational responses on this topic. Don, I am happy to say that the settings you mention below were the ones that I settled on after some experimentation prior to my post. I appreciate the validation and the

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

I would not have upgraded to the KDSP2. Not for the performance, because although I'm mainly a CW operator, I could probably benefit from it. My main objection to the KDSP2 is user interface. The K2 was not designed for the KDSP2 in the first place as can be seen in how complicated it is to set

Re: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade?

Definitely true re user interface. But if you get it set up in a way that works well for you, then not much need to tweak. I don't often change settings in my K3 DSP either. 73, Phil W7OX On 11/4/15 7:35 PM, Sverre Holm (LA3ZA) wrote: I would not have upgraded to the KDSP2. Not for the

Re: [Elecraft] Bias and Dynamic Mics

On Wed,11/4/2015 6:39 PM, Bob McGraw - K4TAX wrote: While I agree with Jim, K9YC on this. Some dynamic mikes I've encountered do use a transformer to get the voltage level from the very low impedance Z element to a respectable output value. Running a bit of DC through the transformer on the

Re: [Elecraft] [OT] 10 mHZ vs 10 Mhz

> > Does current still flow from + to - in a circuit? If not, then most of my early electronics training was fanciful and my Elmers would be embarrassed were they not SK. It all depends upon whether you think of electrons or the spaces (holes) electrons fill as they migrate. Picture a

Re: [Elecraft] P3 - Waterfall Marker?

Hi Steve, I agree that a dot or small vertical line at the bottom of the screen would work great for this purpose. The bottom white 'frame' already has small vertical 'tic' marks on it. I think adding a small tic or dot just beneath that bottom frame would do the trick. That way, the active part

Re: [Elecraft] P3 - Waterfall Marker?

Hi, I use 50 Khz or more span only to get an overview. Normally i only use 10 khz and never had problems turning the marker to the waterfall trace, so that I could catch the station next time it came up. ​73 de ​ Hajo --- Cela est bien dit, mais il faut cultiver notre jardin. >

[Elecraft] OT: geomagnetic storm effects on bands?

Greetings Elecrafters, I have an older Sangean portable next to the bed that I sometimes listen to while I'm settling in for the evening. Frequently I'll tune in W1AW for a quick rough propagation indicator. Last evening 40M, which usually has a strong signal in the 9-10 PM Central timeframe,

Re: [Elecraft] Microphone Setup

Jim: I use the PR -781 on my K3S with excellent results. From the MENU scroll to MIC SEL - choose FP.H meaning front panel high. {See page 55 of the K3S manual.} From the MENU select TX EQ {See page 56 of the K3S manual.} set frequencies as follows #1 50 Hz -16 #2 100 Hz-8 #3

Re: [Elecraft] Microphone Setup

Dr. Jim, There is no FAQ that I am aware of. Actually the information is pretty basic. Microphone elements come in two basic types - Electret and Dynamic. The Electret types need a DC bias applied to the AF line. The Dynamic elements should *not* have bias applied or they will be distorted.

Re: [Elecraft] Microphone Setup

If you ever wondered why a bias voltage can cause distortion in a dynamic microphone element, just consider what happens when you connect a DC source to a speaker. The voice coil move in one direction depending on the polarity. Now think of a dynamic mic element doing the same thing. After all,

Re: [Elecraft] K3/XV144 vs. KX3/XV144

For contesting in Europe ( I stress Europe because it is quite different to other areas of the world) on 144 MHz you generally need very good strong signal handling and good selectivity as there are many stations running several hundred kW ERP often within line of sight of you. Imagine a

Re: [Elecraft] OT: geomagnetic storm effects on bands?

Al, There are times you have to look out the window to see if you still have an antenna. Conditions can be that bad when a storm occurs. Usually improves in less than 24 hours. ___ 73, Jim - N4ST -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf

[Elecraft] Ats.: Re: OT: geomagnetic storm effects on bands?

Siųsta iš „Samsung Mobile“ Originali žinutė Nuo: Jim - N4ST Data: Kam: wb5...@centurytel.net,elecraft@mailman.qth.net Tema: Re: [Elecraft] OT: geomagnetic storm effects on bands? Al, There are times you have to look out the window to see if you

[Elecraft] P3 - Waterfall Marker?

Am I doing something wrong or is this just how it works? I have the P3's waterfall marker turned on. The "marker" slowly crawls down the screen toward the bottom. Moving the Select knob drags the top of the marker and the rest slowly follows drawing a snake. Cute but...huh? Question: What good

Re: [Elecraft] OT: geomagnetic storm effects on bands?

You can check the space weather yourself, which will help answer your question. Try looking at: http://ok1dub.cz/wwv/wwv.txt Which as I write this states: :Product: Geophysical Alert Message wwv.txt :Issued: 2015 Nov 04 1505 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather

[Elecraft] KUSB with FTDI chipset wanted

Anyone have a KUSB with the FTDI chipset that they would like to sell? Please contact me off list at n...@arrl.net. Thanks. 73, Greg __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] KX3 auto tuner solution available after tune?

Does the KX3’s internal auto tuner have the ability to provide the tuned solution like the Elecraft T1 QRP tuner does? I am working on a project that requires the “C” value used in the tuner’s final solution. Michael Blake k9...@outlook.com

Re: [Elecraft] P3 - Waterfall Marker?

Hi Steve, That's how it works. If you don't want the signal to roll off the bottom of the screen, use Freeze to stop the screen from updating or turn averaging on to slow the screen updates and provide more history. Kind regards, Paul -- View this message in context:

Re: [Elecraft] 10 mHZ external reference VS the K3S's optional KTCXO3-1

Thanks, Ron, that is a better description of the EXREF function. I left out the page number where the TCXO specs are given (in my 2010 K3 manual) - page 8 It lists TCXO3-1 as 1ppm but I think it was commonly found to do 0.5ppm. That matches my measurements at 28-MHz of 14-Hz error. MY actual

Re: [Elecraft] OT: geomagnetic storm effects on bands?: follow up

Gotta learn to be a little less wordy HI HI!! In summary the conditions seemed more in line with what I'd have expected for mid-day instead of several hours after sunset. Guess that's part of what makes ham radio exciting ;-) 73, Al On Wed November 4 2015 11:16:16 am kev...@coho.net wrote: > A

Re: [Elecraft] OT: geomagnetic storm effects on bands?

A good place to check space weather is : www.spaceweather.com 73 & GL, Kevin. KD5ONS On 11/4/2015 7:03 AM, Al Gulseth wrote: Greetings Elecrafters, I have an older Sangean portable next to the bed that I sometimes listen to while I'm settling in for the evening. Frequently I'll

Re: [Elecraft] [K2]K2 filters continue to "drift" out of alignment

Don Wilhelm-4 wrote > The bottom line is that the BFO frequency is 'drifting'. > The most probable cause is a defective solder connection in the BFO area. > Carefully lift L33 and reflow the soldering of the BFO crystals. Reflow > the soldering of C173 and C174, RP6. D37, D38, C169 and Q24. >

Re: [Elecraft] P3 - Waterfall Marker?

Paul et al "Freeze" locks up everything including the marker so how does that help? When searching for signals we might see one on the waterfall that is half way down the screen. We want to mark, click or do something to get us exactly on frequency so we can either wait for the signal to

Re: [Elecraft] P3 - Waterfall Marker?

Try Fixed/Tracking and see if that helps. 73, Steve W4FMD On 11/4/2015 12:32 PM, Steve Ellington wrote: Paul et al "Freeze" locks up everything including the marker so how does that help? When searching for signals we might see one on the waterfall that is half way down the screen. We

Re: [Elecraft] P3 - Waterfall Marker?

I think what Steve is asking for is a dot (non-line) marker at the *bottom* of the waterfall and that doesn't have persistence (doesn't "leave a trail"), so that he can line it up with a scrolling signal and then QSY to it before it disappears off the bottom of the screen. It's actually not too

Re: [Elecraft] P3 - Waterfall Marker?

I can usually get close enough to hear the station by eye without a marker, either on the P3 or on a 24" VGA. 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ On 4 Nov 2015 20:14, Steve Ellington wrote: All that's needed is a dot, pointer...something to act as a guide so we can

Re: [Elecraft] OT: geomagnetic storm effects on bands?

http://www.n3kl.org/sun/noaa.html Most everything you could want to know about solar conditions on one page. http://www.hamqsl.com/solar.html The table to the left tells the remainder of the story, including band conditions. As of the time of this email, the best HF conditions we can expect

Re: [Elecraft] P3 - Waterfall Marker?

All that's needed is a dot, pointer...something to act as a guide so we can line up the waterfall with the spectrum's marker. It doesn't need to be a translucent line. The dot could be at the bottom of the waterfall since that's where the desired signal is headed anyway. Great minds at Elecraft

Re: [Elecraft] P3 - Waterfall Marker?

I always used fixed mode. Nope doesn't help. There needs to be a marker at least at the bottom of the waterfall so you can mark the signal before it disappears and shift frequency to it. On Wed, Nov 4, 2015 at 1:11 PM, Steve Glickstein wrote: > Try Fixed/Tracking and see

Re: [Elecraft] OT: geomagnetic storm effects on bands?

On 15-11-04 10:03 AM, Al Gulseth wrote: I was surprised to hear a stronger signal there than on 40, and I could also hear W1AW on 17 and 15, which are usually dead by then this time of year. Is this possibly due to the current geomagnetic storm? (I'm still learning when it comes to

[Elecraft] K3/XV144 vs. KX3/XV144

Hello, Is any difference between those two combo in prestanda for contesting?Will use only for contesting in Europe... Skickat från min iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: