Re: [Elecraft] T1 Firmware Mod?
> Could the T1 be modified to give CW read out of last freq matched by it? > Thanks, Danny Dyer, Wb4idu. Hi, Danny. I saw that you asked this question before, but no one responded. The T1 does not have the ability to measure the frequency it is matching. So, the short answer is no, the T1 cannot be modified to "read out" the frequency in CW. Now that I've gone and said that, Wayne may come up with a way to sample the VFWD power sample and write new code to cram into the controller, etc. But, I doubt it is worth the effort required. I understand you are a non-sighted ham. It sounds like you want some sort of CW output frequency counter? If you give specifics about your needs, perhaps someone can suggest possible solutions. 73, Bruce, N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K144XV firmware released: reduces 2-meter spurious receive signals
Wayne, The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you mentioned in an early posting describing the functions of the coming K144XV add-on board. The present solution of the KREF3 corrects the 49 MHz internally. Which external ref will be used for the K144XV PLL, a 10 MHz ext ref as well ? Jan __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Jan Holmer SM6TUW wrote: > Wayne, David, my question was unclear: I was referring to the > optional PCB to > be installed inside the K144XV on top of the tranverter PCB. > The K144XV I already have. I am looking forward to the PLL function > for > locking the 116 MHz VCXO to the 49.380MHz. Is that project ongoing? In progress. Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://elecraft.365791.n2.nabble.com/New-K144XV-firmware-released-reduces-2-meter-spurious-receive-signals-tp5608958p6195981.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K144XV firmware released: reduces 2-meter spurious receive signals
Wayne, The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you mentioned in an early posting describing the functions of the coming K144XV add-on board. The present FLL solution of the KREF3 corrects the 49 MHz internally. Which external ref will be used for the K144XV PLL, the ext ref (10 MHz)? Jan SM6TUW wayne burdick wrote: > > Jan Holmer SM6TUW wrote: > > > Wayne, David, my question was unclear: I was referring to the > > optional PCB to > > be installed inside the K144XV on top of the tranverter PCB. > > The K144XV I already have. I am looking forward to the PLL function > > for > > locking the 116 MHz VCXO to the 49.380MHz. Is that project ongoing? > > In progress. > > Wayne > N6KR > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- View this message in context: http://elecraft.365791.n2.nabble.com/New-K144XV-firmware-released-reduces-2-meter-spurious-receive-signals-tp5608958p6195991.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SWL Spotting software?
As the caller says on talk radio "long time first time..." - I love this reflector, finally have something to toss into the ragchew... With the K3's KBF3 general coverage receiver (and the K3's excellent receive capabilities) I hope to chase some interesting DX of the non-Ham type. After all I got my start in this hobby as a teenage SWL 40 years ago. Recently I've been enjoying N1MM software features with the DX-cluster via telnet and the thought occurs to me: "is there a corresponding dx-cluster program for short wave listeners?" If there is - would someone please advise ASAP. Imagine - a low-power pirate shortwave station coming on line - and the telnet cluster quickly alerting others to tune in. By the way I have not purchased the KBF3 yet but this would put me over the edge in a hurry... -- Bruce Chadbourne KE1CY 8 Forest Dr Merrimack NH 03054 603-429-2943 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Replacement Batteries
Dear Fellow Elecraft Enthusiasts, I know this is off topic but I also know there is a tremendous amount of experience in this group. My question is where can one find replacement batteries for handitalkies, portable phones, etc that don't die in a matter of months? I have bought from a number of sources each time trying a different company because the replacements just don't last. The original lasted for 4 years but the replacement won't last 6 months?? Am I the only one? I need to try again, but I'm tired of buying junk. Sorry for the off topic post. You can reply off line to reduce QRM. Thanks in advance. 73.WA1NTA George Falardeau Happy Elecraft Owner q...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K144XV firmware released: reduces 2-meter spurious receive signals
We do this in firmware, Jan. The K3EXREF module uses the external 10-MHz reference to determine the exact frequency of the 49-MHz internal reference. If a K144XV PLL is also installed, we know that the 2-meter module is phase-locked to it. We then apply an offset to the 10-meter IF mathematically so that the 2-meter frequency is dead on. This calculated offset replaces the manually entered offsets in the XVn OFS menu entry. 73, Wayne N6KR http://www.elecraft.com On Mar 22, 2011, at 6:08 AM, Jan Holmer SM6TUW wrote: > Wayne, > > The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you > mentioned in an early posting > describing the functions of the coming K144XV add-on board. > The present FLL solution of the KREF3 corrects the 49 MHz internally. > Which external ref will be used for the K144XV PLL, the ext ref (10 MHz)? > > Jan > SM6TUW > > > wayne burdick wrote: >> >> Jan Holmer SM6TUW wrote: >> >> > Wayne, David, my question was unclear: I was referring to the >> > optional PCB to >> > be installed inside the K144XV on top of the tranverter PCB. >> > The K144XV I already have. I am looking forward to the PLL function >> > for >> > locking the 116 MHz VCXO to the 49.380MHz. Is that project ongoing? >> >> In progress. >> >> Wayne >> N6KR >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/New-K144XV-firmware-released-reduces-2-meter-spurious-receive-signals-tp5608958p6195991.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
I have an S9 43' vertical. You will need the unun to match 60 meters and up. The 80M coil works well too. I ended up building the matchbox that Phil AD5X designed. You can see his article here: http://www.ad5x.com/images/Articles/Match160.pdf Phil also has a nice presentation on the 43' antenna here: http://www.ad5x.com/images/Presentations/Vertical43.pdf It's a great antenna if matched properly. It must be matched at the base with a remote tuner, an unun, or coil to work properly. The unun (on 60M and up) keeps the SWR down to manageable levels that you can match with a tuner in the shack with acceptable coax losses. The SWR gets out of hand below 60M and must be matched at the base. 73 Bill nz0t -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6196827.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
There has been a lot written about the 43 foot antenna and the feeding of such an animal. I want to re-iterate the point that radials are so important to any vertical antennaunless it is a vertical dipole. I am using a 33 foot vertical for just 40 meters and I have 32 radials and they are of various lengths, but more than half are about a quarter wave on 40 meters. I started out with 4 radials. It worked but not anything to write about in a letter to Grandma. I added 12 more to 16 radials and the antenna got my attention. It seem to work much better. I started working around the country. I then went to 32 radials. Now, I am working worldwide with the lump of aluminum which cost me $14.00 at the local surplus house. Direct feed to ground. Very good match according to the MFJ thingamajig. This little antenna can really radiate and does quite well on 40 meter DX Reading the material from OU4UN...32 radials is about optimum and anymore doesn't get you much. That has been confirmed by many hams who have done the empirical study. Oh yes, and radials on the ground do not have to be "tuned" radials. That's what the studies say. BUTif you have the vertical raised up off the ground...then the radials need to be tuned, but you can get away with fewer radials. Radials are importanteven to the old Gotham antennas of yesteryear. Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & Heil headset
This is only if you feel the need to have PTT with the hand trigger. I stick with VOX and just plug everything in to the back connectors. Really neat and avoids the front clutter. K3 vox is great. Another option might be to use a foot switch. John, N0IJ In a message dated 3/21/2011 07:27:47 Central Standard Time, lcla...@nc.rr.com writes: Kate I have your set up and ask Heil this is there reply from Bob Heil "You will need the AD-1 K for the K3 (same pin out as Kenwood). The headphones are stereo and will work for dual reception PLU they have our exclusive Phase Reversal. Great match for the K3" 73 Larry K1ZW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kate Hutton Sent: Monday, March 21, 2011 12:50 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 & Heil headset My new K3 works great on CW - love the way it sounds & the intuitively logical controls - but I'm trying to figure out what part I need if any to connect my Heil Pro headset, with a PTT hand trigger. I see a larger stereo plug coming from the PTT switch & a small one coming from the heaset (1 wire), which currently go to a Yaesu adapter to my old rig. The other two wires to the headset appear to be for the earphones (small stereo plug). Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore the 8-pin connector on the front? Sorry if it is a dumb question. 73 Kate K6HTN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] EC1 discontinued?
Hi Andrew, Yes. Since the bare enclosure must be ordered as a separate set of metal from the fabricator (not the same run as the K1 case) and because demand on the bare case has dropped over time, it does not offset the cost of ordering and stocking the sheet metal in production quantities. 73, Eric WA6HHQ On 3/21/2011 7:06 PM, Andrew Moore wrote: > Has the EC1 (enclosure to match K1) been discontinued? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
Hi Tom, Check out Phil's, AD5X, site: http://www.ad5x.com/articles.htm He has written a number of articles related to your questions. Good information with plenty of "how to" ideas with locally found materials. Elecraft's Balun kit is also capable of 1:4 unun and will easily work with any 100 watt rig. QST has had several items related to the ubiquitous 43' verticals that are all the rage now. I see at least one person has mentioned radials, which are a must have to effectively use this antenna on 80-30. The K3's ATU is very effective, but keep in mind that you will be matching the feedline and antenna as a unit, versus matching just the antenna. The K3 will most likely find a match most of the time, but you still could be seriously mismatched at the antenna. It may work, it just won't work well. GL es 73, Julius - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2#4455 Elecraft K3/100 #366 Elecraft K3/100 #1875 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6197137.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 43 foot verticals
See Phil Salas, AD5X, website for his articles on 43 foot verticals and need for radials, unun construction, and base loading. http://www.ad5x.com/ Joe KH6/W3GW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Heil Traveler & K2
I know this has been asked before, but have not found it in the archives or even in my saved email. There is a resistor needed on the K2 panel or control board for proper biasing to allow use of the Heil Traveler Boom Headset (one side earpiece only.) Can someone provide the details or a link to this legacy question? Thanks. BTW, to follow up on the KNB2, after correcting the solder short between pins 1 & 2, all seems fine. LK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
One important thing to note here is that Phil has avoided one of the lossy gotcha's in his matching for using 43' with 80/160 by using a large (4 inch OD) and expensive (30 smackers) #2 powdered iron toroid, Amidon's T400-A2. Don't try to short cut or cheep cut this step because you are only running 100 watts or QRP. It's the LOSS AVOIDED by using this toroid that is actually more important running 100 watts and even more important running QRP. If one really wants to know why, you can get down and dirty in Jerry Sevick's book, where you will find most of the how-come's in chapter 9, and how he uses a T400-A2 in a bifilar winding that actually performs correctly at 160. See figure 9-6 and 9-G on pp. 60, 61 of "Understanding, Building, and Using Baluns and Ununs -- Theory and Practical Designs for the Experimenter", Jerry Sevick, W2FMI (SK), 2003, CQ Communications, Inc, Hicksville, New York. On Tue, Mar 22, 2011 at 12:51 PM, Julius Fazekas n2wn wrote: > Hi Tom, > > Check out Phil's, AD5X, site: http://www.ad5x.com/articles.htm > > He has written a number of articles related to your questions. Good > information with plenty of "how to" ideas with locally found materials. > > Elecraft's Balun kit is also capable of 1:4 unun and will easily work with > any 100 watt rig. > > QST has had several items related to the ubiquitous 43' verticals that are > all the rage now. I see at least one person has mentioned radials, which > are > a must have to effectively use this antenna on 80-30. > > The K3's ATU is very effective, but keep in mind that you will be matching > the feedline and antenna as a unit, versus matching just the antenna. The > K3 > will most likely find a match most of the time, but you still could be > seriously mismatched at the antenna. It may work, it just won't work well. > > GL es 73, > Julius > > - > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2#4455 > Elecraft K3/100 #366 > Elecraft K3/100 #1875 > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6197137.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
In addition to AD5X's excellent work, anyone considering installation of a 43' vertical should first read Owen Duffy's (VK1OD) well-researched information, especially his information concerning feed-point alternatives: http://vk1od.net/antenna/multibandunloadedvertical/index.htm One reason for the 43' vertical's popularity is that typical radiation resistance is better than 100 ohms on 40m-10m -- but falls to less than 10 ohms on 80m and much lower on 160m. On 160m/80m, system losses typically drop nearly in half with an ATU placed at the base feed when compared to a 4:1 current balun feed with ATU at the transmitter. Paul, W9AC - Original Message - From: "Julius Fazekas n2wn" To: Sent: Tuesday, March 22, 2011 12:51 PM Subject: Re: [Elecraft] K3 & S9 43' Vertical > Hi Tom, > > Check out Phil's, AD5X, site: http://www.ad5x.com/articles.htm > > He has written a number of articles related to your questions. Good > information with plenty of "how to" ideas with locally found materials. > > Elecraft's Balun kit is also capable of 1:4 unun and will easily work with > any 100 watt rig. > > QST has had several items related to the ubiquitous 43' verticals that are > all the rage now. I see at least one person has mentioned radials, which > are > a must have to effectively use this antenna on 80-30. > > The K3's ATU is very effective, but keep in mind that you will be matching > the feedline and antenna as a unit, versus matching just the antenna. The > K3 > will most likely find a match most of the time, but you still could be > seriously mismatched at the antenna. It may work, it just won't work well. > > GL es 73, > Julius > > - > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2#4455 > Elecraft K3/100 #366 > Elecraft K3/100 #1875 > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6197137.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] WTB KBPF3
I'm looking for another KBPF3, so that I can hear the same on both main and subRX outside the ham bands. Price with shipping off the reflector please. Thanks in advance. 73, Guy. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
I am in the process of installing a 43-foot vertical at my QTH (made by DX Engineering, but should be the same for purposes of this discussion). I have modeled this antenna on all bands assuming a 4:1 Unun at the base of the antenna, a 75 foot run of 9913 coax, and a home-brew L antenna at the transmitter. TLW (Transmission Line for Windows) calculates the tuner settings needed for all bands, and also calculates the loss in the tuner (low) and the line. With severe SWR mismatches on the lower bands, you get 75-85% of the transmitter power into the antenna. That is, worst case, if you have 100 watts output from your rig, you get 2 watt loss in the tuner and 22 watts loss in the transmission line, giving 76 watts out. this is theoretical calculation, of course, but I think it gives a good indication of the order of magnitude of the line losses. The longer the line, the greater the line loss, of course. One might be able to improve on that with the switchable tuner described by AD5X; I'm going to have to look into that! My UNUN is home-brewed based on a design from Sevick's book on Balun and Unun construction. I can provide details offline to anyone interested. material cost is about $40 for toroids and Thermalize wire, and it's capable of handling full legal limit, although at the moment I'm running my K3 barefoot 10 watts. The tuner is a home-brew switchable configuration L tuner. On all bands, the "best" configuration is a low pass filter with the shunt capacitor on the input (transmitter) side. Inductance and capacitance requirements are well within the limits of the tuner on every band. I'm all done except laying the radials. I'll report back as soon as I'm on the air, after having conducted some A/B tests on the air alternating between the new vertical and my existing HF antenna, a 40 meter horizontal loop. I expect significantly better DX performance with the vertical, since it puts most of the radiated energy out toward the horizon rather than almost straight up. 73, Lew K6LMP On Mar 22, 2011, at 9:51 AM, Julius Fazekas n2wn wrote: > Hi Tom, > > Check out Phil's, AD5X, site: http://www.ad5x.com/articles.htm > > He has written a number of articles related to your questions. Good > information with plenty of "how to" ideas with locally found materials. > > Elecraft's Balun kit is also capable of 1:4 unun and will easily work with > any 100 watt rig. > > QST has had several items related to the ubiquitous 43' verticals that are > all the rage now. I see at least one person has mentioned radials, which are > a must have to effectively use this antenna on 80-30. > > The K3's ATU is very effective, but keep in mind that you will be matching > the feedline and antenna as a unit, versus matching just the antenna. The K3 > will most likely find a match most of the time, but you still could be > seriously mismatched at the antenna. It may work, it just won't work well. > > GL es 73, > Julius > > - > Julius Fazekas > N2WN > > Tennessee Contest Group > http://www.k4ro.net/tcg/index.html > > Tennessee QSO Party > http://www.tnqp.org/ > > Elecraft K2#4455 > Elecraft K3/100 #366 > Elecraft K3/100 #1875 > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6197137.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
The trick is that a match to 43' on 160 must be its own setting, and the same taps CANNOT be used for both 160 and 80. AND as you specify the matching toroid device MUST be at the base of the antenna. Please not the toroid is NOT wired as a balun, but is really a tuned transformer, where the very large capacitive reactance of the antenna on 80 and 160 is tuned out by the selection of the top taps, and the step down impedance by the selection of the mid taps. At the tuned frequencies, the coax is MATCHED and not subject to the worrisome (and accurate) loss graph on the VK1OD site. With a DPDT relay to select top and mid taps, AND with "dense" on/in-ground radials, this becomes an elegantly simple and efficient short antenna for a somewhat narrow single band of frequencies on 80 and 160. The efficiency WILL go down as you move away from the tuned frequencies, and if your operating habits cover all of 3.5-4 and 1.8-2, you should invest in the auto tuner at the base and resign yourself to not running 1500 watts, unless you have the smackers to invest in one of those military KW CCS matchers. Phil's solution WILL handle 1500 watts at the selected 80/160 tuned frequencies. And the T400-A2 will not be smoked. 73, Guy. On Tue, Mar 22, 2011 at 1:14 PM, Paul Christensen wrote: > In addition to AD5X's excellent work, anyone considering installation of a > 43' vertical should first read Owen Duffy's (VK1OD) well-researched > information, especially his information concerning feed-point alternatives: > > http://vk1od.net/antenna/multibandunloadedvertical/index.htm > > One reason for the 43' vertical's popularity is that typical radiation > resistance is better than 100 ohms on 40m-10m -- but falls to less than 10 > ohms on 80m and much lower on 160m. On 160m/80m, system losses typically > drop nearly in half with an ATU placed at the base feed when compared to a > 4:1 current balun feed with ATU at the transmitter. > > Paul, W9AC > > - Original Message - > From: "Julius Fazekas n2wn" > To: > Sent: Tuesday, March 22, 2011 12:51 PM > Subject: Re: [Elecraft] K3 & S9 43' Vertical > > > > Hi Tom, > > > > Check out Phil's, AD5X, site: http://www.ad5x.com/articles.htm > > > > He has written a number of articles related to your questions. Good > > information with plenty of "how to" ideas with locally found materials. > > > > Elecraft's Balun kit is also capable of 1:4 unun and will easily work > with > > any 100 watt rig. > > > > QST has had several items related to the ubiquitous 43' verticals that > are > > all the rage now. I see at least one person has mentioned radials, which > > are > > a must have to effectively use this antenna on 80-30. > > > > The K3's ATU is very effective, but keep in mind that you will be > matching > > the feedline and antenna as a unit, versus matching just the antenna. The > > K3 > > will most likely find a match most of the time, but you still could be > > seriously mismatched at the antenna. It may work, it just won't work > well. > > > > GL es 73, > > Julius > > > > - > > Julius Fazekas > > N2WN > > > > Tennessee Contest Group > > http://www.k4ro.net/tcg/index.html > > > > Tennessee QSO Party > > http://www.tnqp.org/ > > > > Elecraft K2#4455 > > Elecraft K3/100 #366 > > Elecraft K3/100 #1875 > > -- > > View this message in context: > > > http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6197137.html > > Sent from the Elecraft mailing list archive at Nabble.com. > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and Field Day
I worked Eric about six months ago. Sent him a QSL card because I wanted to confirm working K3.Serial number ONE! Never got a reply. But that's OK, cause he must get tons of mail and I'd rather he spend his time doing more of what those guys do best! 73, Terry, W0FM -Original Message- From: Tony Estep [mailto:estept...@gmail.com] Sent: Monday, March 21, 2011 4:20 PM To: Elecraft Subject: Re: [Elecraft] K3 and Field Day On Mon, Mar 21, 2011 at 3:24 PM, Wayne Burdick wrote: > ...Anyone can work Eric, with his monster antenna, seaside QTH, and 500 > W. If you really want to impress people, try working mea random wire 20 > feet off the roof, with power lines nearby This is an awesome post, which I am gonna save. These are the conditions for which a really cool radio should be designed. You certainly reach the largest audience with a radio that copes with all that. The next challenge will be one that will work VU4 with that setup. 73, Tony KT0NY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] (no subject)
He! He! Well, if Eric is God then that makes you the "dawg"! I get into the Elecraft 20m-SSB net just fine with my K3/10. Of course I cheat and use a Hygain TH3mk4 tribander. But I am up under the aurora so that compensates with one-way prop. March 11 was the 1st anniversary for my K3/10 (4340). I'm lovin it! Ed - KL7UW -- Message: 12 Date: Mon, 21 Mar 2011 13:24:36 -0700 From: Wayne Burdick Subject: Re: [Elecraft] K3 and Field Day To: Gary Gregory Cc: Elecraft Message-ID: <91326628-92e4-4c67-941c-3da8f47f0...@elecraft.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Gary Gregory wrote: > I am very proud to announce that God spoke to me yesterday on 10M > with a K3 and a KPA-500 I can tell you all, Eric has a superb > signal...I was knocked for six when he came up on frequency Gary, Anyone can work Eric, with his monster antenna, seaside QTH, and 500 W. If you really want to impress people, try working me. I always operate under extreme conditions to inspire our staff to create better tools for handing QRM and QRN: 10 watts into a random wire 20 feet off the roof, with power lines nearby, cats prowling my workbench, and my high-energy 6-year-old son throwing paper airplanes at me. Wayne N6KR P.S. No one informed me that Eric was God. I suppose I'd better 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and Field Day
Hi Terry, I do try to reply to all QSL requests, but sometimes they get misplaced or I get busy here. I'll recheck my inbox of cards to see if I have yours. I know I'm behind a bit ;-) 73, Eric On 3/22/2011 10:53 AM, Terry Schieler wrote: > I worked Eric about six months ago. Sent him a QSL card because I wanted to > confirm working K3.Serial number ONE! Never got a reply. But that's > OK, cause he must get tons of mail and I'd rather he spend his time doing > more of what those guys do best! > > 73, > > Terry, W0FM > > > > -Original Message- > From: Tony Estep [mailto:estept...@gmail.com] > Sent: Monday, March 21, 2011 4:20 PM > To: Elecraft > Subject: Re: [Elecraft] K3 and Field Day > > On Mon, Mar 21, 2011 at 3:24 PM, Wayne Burdick wrote: > >> ...Anyone can work Eric, with his monster antenna, seaside QTH, and 500 >> W. If you really want to impress people, try working mea random wire > 20 >> feet off the roof, with power lines nearby > > This is an awesome post, which I am gonna save. These are the conditions > for which a really cool radio should be designed. You certainly reach the > largest audience with a radio that copes with all that. The next challenge > will be one that will work VU4 with that setup. > > 73, > Tony KT0NY > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
When I was going to engineering school one of the toughest courses was wave theory. The course included a lot of antenna studies. Not to brag, but I got the highest grade on the final. It was 45. That was the highest mark in the class and thank goodness the course was graded on a curve. I asked the professor if anyone ever received a passing grade not using grade curving. His response was.I have been teaching the class for 10 years and nobody ever got as high as 70. My point is that antenna theory is a complicated study and the study of vertical antenna theory is more complex since we have the ground as an important factor in most cases. So I caution anyone to do your research and do not listen to "old wive's tales" about specific antenna installations. 73deGeorge, W6GFProduct owner of a ZEROFIVE 43 footer --- On Tue, 3/22/11, NZ0T wrote: From: NZ0T Subject: Re: [Elecraft] K3 & S9 43' Vertical To: Date: Tuesday, March 22, 2011, 8:41 AM I have an S9 43' vertical. You will need the unun to match 60 meters and up. The 80M coil works well too. I ended up building the matchbox that Phil AD5X designed. You can see his article here: http://www.ad5x.com/images/Articles/Match160.pdf Phil also has a nice presentation on the 43' antenna here: http://www.ad5x.com/images/Presentations/Vertical43.pdf It's a great antenna if matched properly. It must be matched at the base with a remote tuner, an unun, or coil to work properly. The unun (on 60M and up) keeps the SWR down to manageable levels that you can match with a tuner in the shack with acceptable coax losses. The SWR gets out of hand below 60M and must be matched at the base. 73 Bill nz0t -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-S9-43-Vertical-tp6193993p6196827.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Using WriteLog to control KDVR3
Has anyone used WriteLog to trigger the KDVR3? According to Steve, N9OH (WriteLog), it is possible now with WL version 10.80 by inserting a K3 macro into writelog.ini file and the designating a "control key" (i.e. F10.) It seems likely, then, that every time you tap the "control key" you will send the macro to the K3. Does this mean that the same macro will be invoked regardless of whether the K3 is in SSB or CW? 73, Fred, AE6IC, K3#2241, P3#100 " Do or Do-not. There is no 'Try'..." ~ Yoda __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 & S9 43' Vertical
On Tue, Mar 22, 2011 at 11:37 AM, Lee Buller wrote: > ...went to 32 radials. Now, I am working worldwide with the lump of > aluminum which cost me $14.00 My clubmate NI0C who appears sometimes on this reflector is on the Honor Roll, has 5 band DXCC, and is 2 zones away from 5BWAZ with an antenna like yours. Verticals have a bad rep but can deliver the goods if set up right. Tony KT0NY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
I have the same question, and while I haven't bought one yet, the front runner for me so far is the Seahorse SE-920. http://www.carrycasesplus.com/se-920-p29908.html It's ~$97 with foam and shipping. It's a hard case like the Pelican (but less expensive), comes with or without foam and looks like it'll have room for the K3, P3, power supply, cables, etc. They make smaller versions, but I like this size (inside 22.24 x 13.66 x 8.5) as I've grown attached to the P3 and want to be able to take it as well. It's classified as a carry-on. If I'm going to put something in an overhead bin, I'd prefer to have some protection from my fellow passengers stuffing things in there. Plus for local outings like Field Day, it'll be protected as I stuff the car (protection from myself :-) ). GL, Shel KF0UR -- View this message in context: http://elecraft.365791.n2.nabble.com/Carrying-case-for-a-K3-tp6192458p6197918.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
That case looks almost identical to the pelican. 1510. The dimensions for the Pelican are 22.00" x 13.81" x 9.00". The Seahorse is 23.96" x 16" x 10.01" which is a few inches bigger. You might want to check with your airlines to see if the Seahorse can be carried on. With everyone dragging all their belongings inside the cabin of the planes instead of checking bags the airlines have been getting more particular with what you bring on. BTW charging for bags was stupid. Now the luggage hold is empty and the cabin is jammed with stuff. On 3/22/2011 2:55 PM, Shel Radin KF0UR wrote: > I have the same question, and while I haven't bought one yet, the front > runner for me so far is the Seahorse SE-920. > http://www.carrycasesplus.com/se-920-p29908.html It's ~$97 with foam and > shipping. > > It's a hard case like the Pelican (but less expensive), comes with or > without foam and looks like it'll have room for the K3, P3, power supply, > cables, etc. They make smaller versions, but I like this size (inside > 22.24 x 13.66 x 8.5) as I've grown attached to the P3 and want to be able to > take it as well. > > It's classified as a carry-on. If I'm going to put something in an overhead > bin, I'd prefer to have some protection from my fellow passengers stuffing > things in there. Plus for local outings like Field Day, it'll be protected > as I stuff the car (protection from myself :-) ). > > GL, > > Shel KF0UR > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Carrying-case-for-a-K3-tp6192458p6197918.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Using WriteLog to control KDVR3
Hi Fred, I used it just one time but it seems to work ok. I went to "Writelog Keyboard shortcuts" and then assigned the key F1 to Rig1Command(n) , Rig Command Number 10. Then, I edited the Writelog.ini file in C:\Windows, adding the following lines: [Elecraft_K3_commands] Macro_10=SWT21; This way, when I press F1 on my keyboard, the DVR starts sending the message recorded in memory #1. This can be automated by using the "Timed CQ" function inside Writelog. Bye, Fabio IZ4AFW / NZ1W Il 22/03/2011 21.17, Fred Atchley ha scritto: > Has anyone used WriteLog to trigger the KDVR3? According to Steve, N9OH > (WriteLog), it is possible now with WL version 10.80 by inserting a K3 macro > into writelog.ini file and the designating a "control key" (i.e. F10.) > > It seems likely, then, that every time you tap the "control key" you will > send the macro to the K3. Does this mean that the same macro will be invoked > regardless of whether the K3 is in SSB or CW? > > > > 73, Fred, AE6IC, K3#2241, P3#100 > > > > " Do or Do-not. There is no 'Try'..." ~ Yoda > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
The usual carryon max is 22 x 14 x 9 which is 45 unified inches. The Pelican just makes this but the Seahorse is 5 inches over. The overhead bins in the larger planes are made for the Pelican sized roll-on. The Seahorse might not fit quite as easily. I have rarely been challenged at the check in counter or the gate but have been asked to slide my bag in their sizing frame. In Frankfort the scanners had a hole in the front so if your bag didn't fit through the hole you didn't get through security. Not to discourage you from the Seahorse but you do take your chances small as they may be. David K0LUM At 3:04 PM -0600 3/22/11, Mike Fatchett W0MU wrote: >That case looks almost identical to the pelican. 1510. The dimensions >for the Pelican are 22.00" x 13.81" x 9.00". The Seahorse is 23.96" x >16" x 10.01" which is a few inches bigger. You might want to check with >your airlines to see if the Seahorse can be carried on. With everyone >dragging all their belongings inside the cabin of the planes instead of >checking bags the airlines have been getting more particular with what >you bring on. > >BTW charging for bags was stupid. Now the luggage hold is empty and the >cabin is jammed with stuff. > >On 3/22/2011 2:55 PM, Shel Radin KF0UR wrote: >> I have the same question, and while I haven't bought one yet, the front >> runner for me so far is the Seahorse SE-920. >> http://www.carrycasesplus.com/se-920-p29908.html It's ~$97 with foam and >> shipping. >> >> It's a hard case like the Pelican (but less expensive), comes with or >> without foam and looks like it'll have room for the K3, P3, power supply, >> cables, etc. They make smaller versions, but I like this size (inside >> 22.24 x 13.66 x 8.5) as I've grown attached to the P3 and want to be able to >> take it as well. >> >> It's classified as a carry-on. If I'm going to put something in an overhead >> bin, I'd prefer to have some protection from my fellow passengers stuffing >> things in there. Plus for local outings like Field Day, it'll be protected >> as I stuff the car (protection from myself :-) ). >> >> GL, >> >> Shel KF0UR >> >> >> -- >> View this message in context: >>http://elecraft.365791.n2.nabble.com/Carrying-case-for-a-K3-tp6192458p6197918.html >> Sent from the Elecraft mailing list archive at Nabble.com. >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >__ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K144XV firmware released: reduces 2-meterspurious receive signals
Hi Wayne and all, I have just installed the latest production firmware (4.30) and my 2M S meter readings have reverted back to the old (pre beta 4.29) behaviour. (ie: the S meter reads S 4 for a S 9 repeater signal.) Can anyone else confirm this? TIA Jeff Cochrane - VK4BOF Elecraft K3 # 4257 - Original Message - From: Wayne Burdick To: Jan Holmer SM6TUW Cc: elecraft@mailman.qth.net Sent: Wednesday, March 23, 2011 12:11 AM Subject: Re: [Elecraft] New K144XV firmware released: reduces 2-meterspurious receive signals We do this in firmware, Jan. The K3EXREF module uses the external 10-MHz reference to determine the exact frequency of the 49-MHz internal reference. If a K144XV PLL is also installed, we know that the 2-meter module is phase-locked to it. We then apply an offset to the 10-meter IF mathematically so that the 2-meter frequency is dead on. This calculated offset replaces the manually entered offsets in the XVn OFS menu entry. 73, Wayne N6KR http://www.elecraft.com On Mar 22, 2011, at 6:08 AM, Jan Holmer SM6TUW wrote: > Wayne, > > The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you > mentioned in an early posting > describing the functions of the coming K144XV add-on board. > The present FLL solution of the KREF3 corrects the 49 MHz internally. > Which external ref will be used for the K144XV PLL, the ext ref (10 MHz)? > > Jan > SM6TUW > > > wayne burdick wrote: >> >> Jan Holmer SM6TUW wrote: >> >> > Wayne, David, my question was unclear: I was referring to the >> > optional PCB to >> > be installed inside the K144XV on top of the tranverter PCB. >> > The K144XV I already have. I am looking forward to the PLL function >> > for >> > locking the 116 MHz VCXO to the 49.380MHz. Is that project ongoing? >> >> In progress. >> >> Wayne >> N6KR >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > > -- > View this message in context: http://elecraft.365791.n2.nabble.com/New-K144XV-firmware-released-reduces-2-meter-spurious-receive-signals-tp5608958p6195991.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
I agree. While the website says it meets carry on regulations, it clearly doesn't. So, if flying with this as carry-on luggage is planned, the Pelican 1510 is a safer bet. It's about $60 more.But that might not be a big deal if it saves you from paying baggage fees because it's a little too big to carry on. -- View this message in context: http://elecraft.365791.n2.nabble.com/Carrying-case-for-a-K3-tp6192458p6198319.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker reflector
Same for me. I've inquired about it with the Elecraft folks, but haven't received a reply yet. It would make a nice addition. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-speaker-reflector-tp6183227p6198333.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Thanks, another question, and a little background.
First, thanks to Wayne, Don, Bruce, and Jeff, for your helpful notes and answers to yesterdays inquiries. *I was afraid those answers would actually be pretty much set in software and or stone, but I can dream can't I? At any rate, thanks for a great product and group. *Question, is there room in the T1 for a Piezo to work in concert with or instead of the lites, to give audible cw readout? *In terms of freq read out, I have an MCount, Freqmite, StingerSinger, and Millenium QSYER, but wanting to work ped mobile with my 817ND, small antenna/MFJ1899T and some of the MFJ and or Maldol Monobanders,/and i know they're all compromise ants, but my expectations are pretty much in line with physics. Anyway, being blind as the proverbial bat/no hearts and flowers, just fact, I figure as few extra little boxes as possible between the rig and antenna, is the goal here. But if all else fails, one of my counters in a shirt pocket, with a short wire running from counters' ant jack and wound around the base of the rigs' antenna should make it happen well enough to make a go. *I have a number of memories programmed into the radio separated by Broadcast stations to divide groups, and this has been, and will continue to be a great adventure. Again, thanks to all, Danny Dyer, Wb4idu, Toccoa, GA, USA. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
I have used the Pelican 1510, but I had to remove the K3 handle, and even then only had 1/2" to spare - a snug fit with a little token foam. I certainly wouldn't ship it that way as checked baggage. The 1510 does have room for a p/s, headset, etc., in the long dimension. I carried it onto the big airplanes (tnx goodness for the wheels), but I had to give it to baggage handlers for one short leg on a Twin Otter. Otherwise, I would have used my Rose case, which is a much better choice if you are able to carry it on every flight, IMHO. Ralph, VE7XF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 freq. stability question?
Other than the 49MHz REF OSC, what hardware determines or effects the frequency accuracy and stability in the K3? Thanks and 73, Mike AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 DSP Upgrade
Is it worth it? I have seen some people say yes and others that say no. What is involved with the swap out. (read too lazy to read manual) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 DSP Upgrade
Hello Mike, The upgrade is a 'must'. I sold my K3#46 and bought back a much newer one with latest DSP installed. I noted that improvement was far more than described in Elecraft web page. The upgrading work is not difficult and well within your expertise. cheers, Johnny VR2XMC 寄件人﹕ Mike Fatchett W0MU 收件人﹕ elecraft@mailman.qth.net 傳送日期﹕ 2011/3/23 (三) 9:53:50 AM 主題： [Elecraft] K3 DSP Upgrade Is it worth it? I have seen some people say yes and others that say no. What is involved with the swap out. (read too lazy to read manual) __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DSP Upgrade
Hi Mike, If you have an appreciation for the elimination of high end artifacts and overall smother sound, the answer is clearly, 'Yes, it is worth it.' Prior to the upgrade, I kept the top edge of the filter about 2.35 kHz as that was about all I could take. Now I have no problem running the 2.7 stock filter at full open for SSB listening. There is also improvement on the lower end of the spectrum. I tend to run my lo cut at 100 Hz. The overall comfort level is improved appreciably. I use my system with Line with Speaker Out, stereo into the input of my computer soundcard. From there it goes to an external Hi-Fi receiver via optical and digital cable. The sound is somewhat reminiscent of the old console shortwave receivers of long ago. My DSP upgrade came from Elecraft. It is evidently an highbred with the piggy-backed LP filer and assumedly the rest of the upgrades to the DSP board. Other off-DSP board audio updates have been done by myself. When I sent my card in, with previous notification, the replacement was back in my hands within about 5 or 6 calendar days including a weekend. Good lucky & 73, Dick - KA5KKT _ Is it worth it? I have seen some people say yes and others that say no. What is involved with the swap out. (read too lazy to read manual) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DSP Upgrade Correction
"I use my system with Line with Speaker Out" - should read, 'I use my system with Speaker out through a matching network to line in on my computer sound card.' The matching network is a $20 item from an auto sound store and is used to cut speaker level down to line level. 73, Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 freq. stability question?
All signal sources are phase locked to this reference, Mike. The other factor is synth DDS resolution, which is about 1/5th Hz, and can lead to about a +/- 1 Hz error, worst case, during operation. However, in diversity mode, both synths are set to the same DDS digital word, so there's zero offset. (This is not true of some other radios claiming to do diversity.) 73, Wayne N6KR On Mar 22, 2011, at 6:31 PM, a...@sbcglobal.net wrote: > Other than the 49MHz REF OSC, what hardware determines or effects > the frequency > accuracy and stability in the K3? > > Thanks and 73, > Mike AC5P > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DSP Upgrade Correction
On 3/22/2011 7:24 PM, Edward Dickinson III wrote: > The matching network is a $20 item from an auto sound store and is > used to cut speaker level down to line level. You just spent $20 on something that you could have done equally well with two 5-cent resistors, AND that probably was not needed in the first place. Study the part of http://audiosystemsgroup.com/HamInterfacing.pdf that talks about audio levels. Also see the Appendix on audio that is part of http://audiosystemsgroup.com/RFI-Ham.pdf The executive summary -- most computer sound cards clip at about 1 volt sine wave. A 2-watt power amp, typical for ham gear, would clip at about 2 volts, and that only occurs on very loud audio peaks. All that's required to prevent clipping of the sound card input is to turn the speaker output gain down a bit. A simple voltage divider (the two resistors) IS needed to drive a MIC level input. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Carrying case for a K3?
I found the Pelican at Amazon.com for $134.22 and the lid organizer for $19.99. On 3/22/2011 5:14 PM, Shel Radin KF0UR wrote: > I agree. While the website says it meets carry on regulations, it clearly > doesn't. So, if flying with this as carry-on luggage is planned, the > Pelican 1510 is a safer bet. It's about $60 more.But that might not be > a big deal if it saves you from paying baggage fees because it's a little > too big to carry on. > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Carrying-case-for-a-K3-tp6192458p6198319.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DSP Upgrade Correction
Jim and all, Some just have not "gotten it". The K3 is soundcard digital ready. Just connect the computer Line in to the K3 rear panel Line Out, and the computer Line Out to the K3 Line In, and set the "mic sel" menu for data modes to Line In. Yes, if you only have speaker out level from your computer (most have line level out), then a resistive divider is in order - nothing exotic - as Jim pointed out, two resistors will do the job. 73, Don W3FPR On 3/22/2011 11:01 PM, Jim Brown wrote: > On 3/22/2011 7:24 PM, Edward Dickinson III wrote: >> The matching network is a $20 item from an auto sound store and is >> used to cut speaker level down to line level. > You just spent $20 on something that you could have done equally well > with two 5-cent resistors, AND that probably was not needed in the first > place. > > Study the part of http://audiosystemsgroup.com/HamInterfacing.pdf that > talks about audio levels. Also see the Appendix on audio that is part > of http://audiosystemsgroup.com/RFI-Ham.pdf > > The executive summary -- most computer sound cards clip at about 1 volt > sine wave. A 2-watt power amp, typical for ham gear, would clip at about > 2 volts, and that only occurs on very loud audio peaks. All that's > required to prevent clipping of the sound card input is to turn the > speaker output gain down a bit. > > A simple voltage divider (the two resistors) IS needed to drive a MIC > level input. > > 73, Jim K9YC > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] marine frequencies and k3
I know someone who is about to embark on an around the world sailboat cruise. She is not currently licensed on HAM frequencies but is going to have a marine operator license. She is about to acquire a marine SSB radio. Most of those radios are also capable of operation on HAM frequencies. I was trying to figure out if it was possible to legally communicate with her using my K3 from home. Can the K3 be modified to permit transmission on marine bands? I want to emphasize that I am not looking for an opportunity to use the radio for any illegal purpose. I am only interested in operating on marine frequencies for which I would have a valid license. Beyond this, it seems there is a potential marketing opportunity for Elecraft in the marine community. Ocean sailors use SSB and many of them also end up getting a HAM license so they can also use HAM frequencies on voyages. The Elecraft K2 and K3 are in some ways ideal for marine use because they are small and have relatively low power consumption. The stresses on a marine radio are huge and most of them have been made water and shock resistant. Also, marine radios require extreme simplicity of operation because they occasionally have to be used by an inexperienced operator during an emergency. Maybe none of this makes practical sense. Someone educate me, that is what this forum is about. de George AE7G __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] marine frequencies and k3
Unfortunately, even if the K3 could be made to operate on marine frequencies, unless if is type accepted by the FCC for that service, it is still not legal to use it, whether or not you have a license. As far as I know, the K3 could not pass the acceptance requirement in it's present form. The primary objection would have to do with VFO frequency control, which is not permitted on the marine bands. There may be others. It is legal to use a marine SSB transceiver on the ham bands, where type acceptance is not required, but the reverse is not true. Wayne or Eric can amplify this if they wish, but that is the gist of the argument. - Jim, KL7CC George A. Thornton wrote: > > > I was trying to figure out if it was possible to legally communicate > with her using my K3 from home. > > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Re： marine frequencies and k3
Also for practical reasons, the popular marine bands is near to the I.F. of K3. Using K3 for marine communication seems not quite appropriate. cheers, Johnny VR2XMC 寄件人﹕ Jim Wiley 收件人﹕ George A. Thornton 副本(CC) Elecraft@mailman.qth.net 傳送日期﹕ 2011/3/23 (三) 1:30:12 PM 主題： Re: [Elecraft] marine frequencies and k3 Unfortunately, even if the K3 could be made to operate on marine frequencies, unless if is type accepted by the FCC for that service, it is still not legal to use it, whether or not you have a license. As far as I know, the K3 could not pass the acceptance requirement in it's present form. The primary objection would have to do with VFO frequency control, which is not permitted on the marine bands. There may be others. It is legal to use a marine SSB transceiver on the ham bands, where type acceptance is not required, but the reverse is not true. Wayne or Eric can amplify this if they wish, but that is the gist of the argument. - Jim, KL7CC George A. Thornton wrote: > > > I was trying to figure out if it was possible to legally communicate > with her using my K3 from home. > > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
