Homebrew Balanced Autotuner Update
Well, I have had two requests for updates in one week. Guess I better say something. Early last summer I last posted on this subject asking for any ideas for algorithms for autotuning. I received many replies, all very helpful. Since then I have written the necessary code for autotuning and have been using the tuner every day as my standard station tuner. My K2, my old Valiant/SX28A, and homebrew gear all feed through it. I have found it necessary to be able to place the tuning capacitor at the input of the tuner (immediately after the balun) in some cases where I am matching a low feedline impedance. Note that the balun I am using at the input to the tuner is a 1:4 balun and so the tuner is matching the feedline to a nominal 200 ohm source impedance. The capacitor switching is done with a conventional two pole double throw RS relay and the optimum position of this relay for each frequency is stored in permanent memory along with L-C parameters and is switched automatically whenever changing operating frequency. I also added a second antenna output. This is an unbalanced output and it is tuned also and in my station it feeds coax leading to an R7 vertical. Switching between the two antennas is done via a pushbutton on the front panel and the LCD displays which antenna is connected. This makes it convenient to compare antennas with a touch of one switch .. and the appropriate matching L-C is switched automatically depending on the antenna chosen. The only hardware problem I have had is the failure of one of my reed relays. This occurred early just after putting the tuner into service. The relay was one of those connected across an inductor and it was not 'making' the circuit when closed. I am hoping it was a case of infant mortality and not the start of a trend. I have had about 6 months of trouble free service since then, usually at the 100 watt level. I have not attempted higher power yet. I still plan to repackage the tuner into a K2 case. That will be after the holidays. I am taking my time evaluating the tuner before starting to drill holes etc in a nice new Elecraft K2 case. I want to be sure I really know where I want every thing to be and how I want it to work because any modifications later will be difficult and could make a mess of things cosmetically. Don K7FJ
[Elecraft] Variable Inductors Stuck
Hi. Im Building the xv222 which is supplied with three can type variable inductors (L15, 16, 17). The cores of the inductors are frozen near the top of the form. Manaual instructs to exercise the inductors before placement using the tuning shaft. Manual says they may be tight but they are frozen. any suggestion on how to loosen the cores without damaging them? Thanks Gary AA1UE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Frozen Variable Inductors.
Hi. Im building the xv222. There are three can type variable inductors supplied for use in the IF. (L15-17). Manual instructs to exercise the cores before insertion using the supplied shaft. They are not simply tight they are frozen near the top of the form. Any suggestions on how to loosen the cores without damaging them. I already see what appears to be a hairline crack in one of the cores which may have been caused by trying to turn the frozen core. Any help is appreciated.. 73 Gary aa1ue ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Christmas Wishes
Greetings to all Elecraft Reflector members: I just wanted to take a very brief moment to wish everyone a Very Merry Christmas, and our most sincere wishes for a Healthy and Happy New Year. 73, Tom Jeri Hammond K2 #8 K1 #7 N0SS K0RPH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Christmas Wishes
May all on this list have a peaceful Holiday and a great New Year. Tom McCulloch, WB2QDG and family k2 1103 - Original Message - From: Tom Hammond [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, December 23, 2005 9:14 AM Subject: [Elecraft] Christmas Wishes Greetings to all Elecraft Reflector members: I just wanted to take a very brief moment to wish everyone a Very Merry Christmas, and our most sincere wishes for a Healthy and Happy New Year. 73, Tom Jeri Hammond K2 #8 K1 #7 N0SS K0RPH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SKN
But the organization that sponsors the event seems to think otherwise. No, they don't...That is reading between the lines...Consulting the ARRL Members Only page, attached is an excerpt from the SKN announcement which also appears on page 89, December, 2005 QST...Note the words using straight keys...Elsewhere in this article the author mentions what we might HEAR (bugs) being used during SKN, but it does not say they sanction the use of bugs, nor does it call a bug a straight key...This is not a contest, there are no awards or certificates, maybe just honorable mention...Why would one want to use anything but a straight key?...It defeats the whole purpose of the event...IMHO... In this era of digital communication, keyboarding, FM and electronic keys, once a year many excellent operators bring the past to the present and participate in the annual ARRL Straight Key Night. The object of this friendly event is to enjoy some good, old fashioned QSO fun, using straight keys. The emphasis is on rag-chewing rather than fast contest-type exchanges. SKN 2006 begins at 7:00 p.m. EST December 31 and runs for 24 hours through 7:00 p.m. EST January 1( --2400 UTC January 1, 2006) Jerry, wa2dkg ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN
Must be the logic of learning to live in the elements, with the wind, rain, snow, and sun, and even the moon. Accomplishing what must be, and learning that not all the is expected is gonna happen. With the soft footfalls from underneath, and a clear starry night, a bit of a fresh breath across one's cheek, and the creak a leather, the sought after is found, and once more, the return to the barn is underway. Time for reflection, honest work results in honest rewards. No one playing fence cop, no one yelling about the condition of the saddle... simply the plain facts... saddled horse, pleasant ride, found calf, return, calf and cow are fine. Day done. Seems a whole lot like SKN. Get on the air, have a good conversation, followed by another... and maybe more... and when you turn off the flow of electrons. a satisfied feeling knowing that it is an accomplishment. Simple... rewarding... satisfaction garunteed. See you on SKN... and who cares what I use ?? Come challange me?? What am I using? --... ...-- Dale - WC7S in Wy. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN
See you on SKN... and who cares what I use ?? Come challange me?? What am I using? --... ...-- Dale - WC7S in Wy. I surely do not care what you use. But it says straight keys. Does not say bugs or paddles but straight keys. Only you will know what you are using. We all have to live with our conscience. Why dont you start a new one! Call it Bug Night or Paddle Night. Then you will have the few who claim that a straight key is a paddle! MERRY CHRISTMAS john-n3drk ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN
Actually, guys, it DOES say old-fashioned bugs, a variation of the straight key on the rules page for SKN of the ARRL web site. In many circles SKN has been expanded to encompass vintage radio equipment as well. Reminiscing about their early days in our hobby, many operators use SKN as the excuse to refurbish their old Viking, Heathkit, or Scout. You will hear as many vintage radios on the air during SKN as you will variety of keys. And you will hear signals generated using old-fashioned bugs, a variation of the straight key. SKN is the time amateur radio recalls the past, transporting it to the present. Surely this horse is dead by now. 73 and Merry Christmas, Ken K3IU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of n3drk Sent: Friday, December 23, 2005 10:15 AM To: Dale Putnam; elecraft Subject: Re: [Elecraft] SKN See you on SKN... and who cares what I use ?? Come challange me?? What am I using? --... ...-- Dale - WC7S in Wy. I surely do not care what you use. But it says straight keys. Does not say bugs or paddles but straight keys. Only you will know what you are using. We all have to live with our conscience. Why dont you start a new one! Call it Bug Night or Paddle Night. Then you will have the few who claim that a straight key is a paddle! MERRY CHRISTMAS john-n3drk ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] CW Keys
What could possibly make a key worth 1250 bucks? Well, a couple of years ago I saw a Vibroplex Upright Bug (aka Wire Chief's Key) go for $10,000 US on eBay. There not many around today because few were sold between 1917 and 1919 (the production dates) and many folks who did purchase one apparently threw them in the garbage because they were apparently such a horrible key. Michael VE3WMB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Frozen Variable Inductors.
Hello Gary: Those are defective inductors. Do not install them unless the slugs can be turned smoothly. A hairline crack will also affect the tuning slug electrically (well, magnetically, but it'll change the inductance of the coil). Write [EMAIL PROTECTED] and they'll send out replacements ASAP. You can call 831-662-8345 instead, but e-mail is better because it provides a clear written record of the problem and what you need. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gary Thomas Sent: Friday, December 23, 2005 5:26 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Frozen Variable Inductors. Hi. Im building the xv222. There are three can type variable inductors supplied for use in the IF. (L15-17). Manual instructs to exercise the cores before insertion using the supplied shaft. They are not simply tight they are frozen near the top of the form. Any suggestions on how to loosen the cores without damaging them. I already see what appears to be a hairline crack in one of the cores which may have been caused by trying to turn the frozen core. Any help is appreciated.. 73 Gary aa1ue ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Headphone for hard of hearing
... I have not done the visual bit since - but then I have not tried the vibration method either - although a good friend of mine G3UFB now tells me he experimented with it 10 years ago when I went deaf and reckons he could read it at 18 WPM - but I haven't got the sensitivity in my fingers that he seems to have. Hence my enquires regarding using a LOUD speaker.. 3. WU7R tells me that a kit called 'son of zerobeat' is available and I will no doubt purchase one. 4. Steve (AA4AK) has sent me an interesting article on Sensory substitution - I shall endevour to understand this 6 page leaflet whilst imbibing my Xmas Brandy. The further down the glass I get the more I will understand it. Thank you Steve. Again thankyou all - further suggestions would be most welcome. Merry XMAS from John G4BOU John, I wonder if fingertips on the transducer is the most sensitive configuration? You might find another place that is more sensitive, such as the back of your hand. For example, suppose you took the front piece off of a headphone and taped the remainder to the back of your hand, such that the diaphragm is right against the skin. Fingertips are very sensitive for some things, but maybe not for small vibrations. I have no experience with this, so I might be wrong. Its worth experimenting with, though. When I was a kid, an American magazine called Popular Electronics used to run a series of stories about two kids who would save the day with some kind of simple electronic device they would construct in an emergency. In one of these Carl Jerry stories, they made a covert CW receiver which they had to use in a crowd without others being aware of it. They disassembled a little earphone and taped the diaphragm to their bodies somewhere and copied the CW through the vibrations. I don't remember what global crisis was averted by their devices, but I do remember eagerly reading each new story when the magazine arrived. Dudley - WA1X ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN
It may say that and it has evolved to that but that was not the original intention of the creator. john - Original Message - From: Ken K3IU [EMAIL PROTECTED] To: 'n3drk' [EMAIL PROTECTED]; 'Dale Putnam' [EMAIL PROTECTED]; 'elecraft' elecraft@mailman.qth.net Sent: Friday, December 23, 2005 10:24 AM Subject: RE: [Elecraft] SKN Actually, guys, it DOES say old-fashioned bugs, a variation of the straight key on the rules page for SKN of the ARRL web site. In many circles SKN has been expanded to encompass vintage radio equipment as well. Reminiscing about their early days in our hobby, many operators use SKN as the excuse to refurbish their old Viking, Heathkit, or Scout. You will hear as many vintage radios on the air during SKN as you will variety of keys. And you will hear signals generated using old-fashioned bugs, a variation of the straight key. SKN is the time amateur radio recalls the past, transporting it to the present. Surely this horse is dead by now. 73 and Merry Christmas, Ken K3IU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of n3drk Sent: Friday, December 23, 2005 10:15 AM To: Dale Putnam; elecraft Subject: Re: [Elecraft] SKN See you on SKN... and who cares what I use ?? Come challange me?? What am I using? --... ...-- Dale - WC7S in Wy. I surely do not care what you use. But it says straight keys. Does not say bugs or paddles but straight keys. Only you will know what you are using. We all have to live with our conscience. Why dont you start a new one! Call it Bug Night or Paddle Night. Then you will have the few who claim that a straight key is a paddle! MERRY CHRISTMAS john-n3drk ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Season's Greetings
I would like to extend a very Merry Christmas and a Happy New Year to everyone on the Elecraft reflector from everyone on the QRP-C reflector - 72 - Bruce. 72/73 - Bruce ve5rc/ve5qrp - QRP-C#1, QRP-L#886, A1 Operator Enter QRP-Canada's RUN with RAC contest - details - http://www.qrp-canada.com I am using the free version of SPAMfighter for private users. It has removed 740 spam emails to date. Paying users do not have this message in their emails. Try www.SPAMfighter.com for free now! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SKN
Just got off the phone with Kathy who was speaking for Dan Henderson, N1ND (Head of ARRL contest division) who is on vacation. I asked her what was the thinking of the organizers of SKN pertaining to what kind of keys are acceptable for use during SKN? Her answer was very definite in as much as Any mechanical means of producing a CW signal is acceptable. The bug is every much a part of radio history as the straight key and is perfectly acceptable for use during SKN. You can quote the statement shown on the ARRL site as much as you wish but this is not a Set of Rules but more a philosophy of what the night is all about. The celebration of the Good old days. Vintage equipment is being used more and more on that evening along with the mechanical keys used to generate cw signals from that era. All is encouraged and acceptable. The ONLY thing that is not acceptable is the electronic generation of the cw signal. eg: electronic keyers of any type, keyboards, etc. I have tried to represent the thinking of the officials organizing this event in as simple and straightforward method as possible. I am sure someone will read something into this that isn't there to promote their thinking that because the name of the event is Straight Key Night that it is the only device acceptable. NOT TRUE!!! Gee, I hope this settles this thread. Larry KW4A K2 ser# 811 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN
KW4A said..Gee, I hope this settles this thread. and so do I !!. 72 Tony, W4FOA Wishing everyone a Merry Christmas and a Happy and Healthy 2006 - Original Message - From: Larry Walker (KW4A) [EMAIL PROTECTED] To: Elecraft List elecraft@mailman.qth.net Sent: Friday, December 23, 2005 11:21 AM Subject: [Elecraft] SKN Just got off the phone with Kathy who was speaking for Dan Henderson, N1ND (Head of ARRL contest division) who is on vacation. I asked her what was the thinking of the organizers of SKN pertaining to what kind of keys are acceptable for use during SKN? Her answer was very definite in as much as Any mechanical means of producing a CW signal is acceptable. The bug is every much a part of radio history as the straight key and is perfectly acceptable for use during SKN. You can quote the statement shown on the ARRL site as much as you wish but this is not a Set of Rules but more a philosophy of what the night is all about. The celebration of the Good old days. Vintage equipment is being used more and more on that evening along with the mechanical keys used to generate cw signals from that era. All is encouraged and acceptable. The ONLY thing that is not acceptable is the electronic generation of the cw signal. eg: electronic keyers of any type, keyboards, etc. I have tried to represent the thinking of the officials organizing this event in as simple and straightforward method as possible. I am sure someone will read something into this that isn't there to promote their thinking that because the name of the event is Straight Key Night that it is the only device acceptable. NOT TRUE!!! Gee, I hope this settles this thread. Larry KW4A K2 ser# 811 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN
On Dec 23, 2005, at 11:21 AM, Larry Walker (KW4A) wrote: The ONLY thing that is not acceptable is the electronic generation of the cw signal. eg: electronic keyers of any type, keyboards, etc. Suppose a ham has built, or has refurbished an ancient TO electronic keyer? Why wouldn't they be able to use it on SKN? I'm certainly not going to step on anyone else's fun, but, for me, using something other than a straight key kinda dilutes the whole SKN experience. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 SN 796 sold
K2 SN 796 sold. Thank you. Mark N7MQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Horizontal Loop Antenna
Thanks to everyone who responded about my proposed horizontal loop antenna. I was outside today and had an idea for an antenna installation. I primarily want to work (or try to work) some DX. This, of course, requires a low elevation angle. A vertical would probably be a better solution due to my height restrictions. I live on a conservation lot with 6-8 acres of woods behind the house. I own maybe 15 feet into the woods. Being Florida, this is wetlands. There is almost always standing water or VERY moist soil (mud) in the woods. I would think that this would present an excellent ground for a vertical antenna to work against. My idea is to get a vertical antenna, paint it dark brown, and place it in the woods. I'd place it deep in the brush next to a tree. Nobody (except a deer or bobcat, etc...) would be able to touch it. Kevin N8IQ/4 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SKN rigs
Fellow Elecrafters: I'll be using my newly resurrected/rehabbed/revitalized HT37 along with my Drake 2B on SKN night. Believe I participated in SKN a year or two ago and quickly realized why I went to a bug in my Novice days (grin). I'll be using a U.S. Navy flameproof hand key...for a couple of QSO's before my wrist breaks down (grin)hope the CW is intelligible. See you there. 73, Joe W2KJ I QRP, therefore, I am ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN rigs
On STRAIGHT KEY Night, I'll be using the Drake 2-B, 2-C and 2-NT, not surprisingly with a Speed-X STRAIGHT KEY. The VFO for my 50 dollar Drake transmitter is an Elecraft K2 into a DL-1 for about 2 vrms into the FT-243 crystal socket. My apologies to boatanchor enthusiasts everywhere. I'm still looking for a real VFO. Pictures at: http://www.ke6us.com/boatanchors.htm Included is a picture of a STRAIGHT KEY for those who seem confused about the concept of STRAIGHT KEY Night. Eric KE6US www.ke6us.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN
Thanks, Larry. Kathy opens up entirely new possibilities for ARRL events. I was always intimidated by all that fast-paced, short number exchange stuff in ARRL contests. I thought it was mandated by the rules on the ARRL site. But instead we're only bound by philosophy. I'm going to enjoy contests more now that I know the participants are going to enjoy ragchewing with me at 10 wpm. DX contesters will enjoy my efforts to reach across the oceans in friendship and learn their culture. Afterall, isn't this what ham radio and the ARRL are all about? But I think I'll stick with a straight key on Straight Key Night. To celebrate the good old days. Eric KE6US www.ke6us.com where a Drake 2-NT gets an Elecraft K2 VFO for Christmas! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Walker (KW4A) Sent: Friday, December 23, 2005 8:22 AM To: Elecraft List Subject: [Elecraft] SKN Just got off the phone with Kathy who was speaking for Dan Henderson, N1ND (Head of ARRL contest division) who is on vacation. I asked her what was the thinking of the organizers of SKN pertaining to what kind of keys are acceptable for use during SKN? Her answer was very definite in as much as Any mechanical means of producing a CW signal is acceptable. The bug is every much a part of radio history as the straight key and is perfectly acceptable for use during SKN. You can quote the statement shown on the ARRL site as much as you wish but this is not a Set of Rules but more a philosophy of what the night is all about. The celebration of the Good old days. Vintage equipment is being used more and more on that evening along with the mechanical keys used to generate cw signals from that era. All is encouraged and acceptable. The ONLY thing that is not acceptable is the electronic generation of the cw signal. eg: electronic keyers of any type, keyboards, etc. I have tried to represent the thinking of the officials organizing this event in as simple and straightforward method as possible. I am sure someone will read something into this that isn't there to promote their thinking that because the name of the event is Straight Key Night that it is the only device acceptable. NOT TRUE!!! Gee, I hope this settles this thread. Larry KW4A K2 ser# 811 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Christmas Wishes
Merry Christmas, Tom, and thanks for another great year of support for Elecrafters. Eric KE6US www.ke6us.com K2 #0567 K1 #1976 KX1 #0539 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Hammond Sent: Friday, December 23, 2005 6:14 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Christmas Wishes Greetings to all Elecraft Reflector members: I just wanted to take a very brief moment to wish everyone a Very Merry Christmas, and our most sincere wishes for a Healthy and Happy New Year. 73, Tom Jeri Hammond K2 #8 K1 #7 N0SS K0RPH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN rigs
Hi Eric: Your web site is excellent. It brought a lot of memories. My first rig was the Drake R4-B and the 2-NT. Later when I passed the General, I replaced the 2-NT with the T4X-B. I still have them all, but the 2-NT is in a box in my storage room. I, too, never found a suitable VFO for it, but God if we only new about VXO's in that day !! HI I was a high school sophomore in 1971 with my Novice ticket - WN4YDL - living in Memphis. I now also have built the Elecraft line - K2/100, K1, and KX1. I just may have to try this 'VFO' out ! I certainly need to get the Tarn-X out and start cleaning up these great old rigs. I saw where an outfit called Misty Hollow is developing DDS gear for the transceivers of the day, but I don't know if they have anything going back to the separates. 73 and Merry Christmas, Jamie WB4YDL -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of EricJ Sent: Friday, December 23, 2005 12:17 PM To: 'Elecraft' Subject: RE: [Elecraft] SKN rigs On STRAIGHT KEY Night, I'll be using the Drake 2-B, 2-C and 2-NT, not surprisingly with a Speed-X STRAIGHT KEY. The VFO for my 50 dollar Drake transmitter is an Elecraft K2 into a DL-1 for about 2 vrms into the FT-243 crystal socket. My apologies to boatanchor enthusiasts everywhere. I'm still looking for a real VFO. Pictures at: http://www.ke6us.com/boatanchors.htm Included is a picture of a STRAIGHT KEY for those who seem confused about the concept of STRAIGHT KEY Night. Eric KE6US www.ke6us.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Lesson from a Ham (WAS: SKN)
I used to work him regularly on 40 CW. He had a beautiful fist on his Bug. We never met for an eyeball QSO, but we developed a warm relationship over time. He was a retired maritime operator and we enjoyed swapping sea stories. We had some real long rag-chews. We certainly weren't QRQ ops. Most commercial maritime ops weren't. I'd putter in the shop while he regaled me with the details of an long-ago exploit, then I'd pour a fresh cup of Java and take my turn. Sometimes we wouldn't work each other for a few months. We never kept a sked. We just bumped into each other on the band from time to time, recognizing each other's fists instantly while tuning around. One day he answered my CQ. I didn't recognize him at first. His fist was not right. Indeed, it sounded far too mechanical. He explained and apologized. He had suffered a stroke. In spite of physical therapy he had not recovered enough control over his hand to operate a key, not even a straight key. So, to get on the air, he bought a keyboard and was poking at it with one finger - the best he could do with his crippled hands. Of course I was simply glad he was still on the air. If I were to run across him on SKN, I would not vote for him as best fist. That'd be an insult, But I'd likely vote for him as best QSO and mean it from my heart. I hone my skills on my straight key and my bugs every chance I get. I'll enjoy the keys just like every other part of life to the extent I am able. Especially those parts of life that touch and encourage others. It's what he taught me to do. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN rigs
On Dec 23, 2005, at 12:48 PM, Joseph Trombino Jr wrote: I'll be using a U.S. Navy flameproof hand key...for a couple of QSO's before my wrist breaks down (grin)hope the CW is intelligible. Now, if you have that key adjusted correctly, and are using it correctly, you should be able to send CW all day on a straight key without any problems or pain. About 30 years ago, 73 magazine had an excellent article about glass arm -- how telegraph operators would get it and it would put them out of a job. It also spoke of how to avoid it -- to use a rather wide spacing, loose trunnions, pivot on your elbow and have your whole arm move when you key. If you key just with the muscles of your wrist, you'll tire out in no time. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Polar Bear: Lead Dog Changed on Sled!
Hello Fellow Polar Bears, It's that time of the year when everyone has a giving heart. Well, Polar Bear # 1 isn't an exception. Since the EPA QRP Club took over the Polar Bear Program, it's fitting that Ron, WB3AAL, have Polar Bear Number One. So starting Christmas Day, WB3AAL will have Polar Bear number one. WA3WSJ will take the Polar Bear #2 slot. What does this mean? If you're not the lead dog, the view never changes - hi! I would like to take this time to thank all who make the Polar Bear Moonlight Madness Events such fun - THANK YOU! Merry Christmas Happy New Year Everybody! 72, Ed, WA3WSJ Polar Bear #2 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SKN
To all, With tongue firmly in cheek and a smile on my face (try that!) let me say to this issueGET A LIFE, people. I remember the good old days of the straight key. I could hardly wait to ditch the @#$%^ thing and get a bug. I bet the use of the straight key was the second leading cause of carpal tunnel syndrome after operating the manual printing press. Then I could hardly wiat to ditch the @[EMAIL PROTECTED] bug, which couldn't be adjusted for decent dot speed without wrapping the arm with about a pound of solder between the weights, for a W9TO Keyer, which I built. Then I couldn't wait to ditch the $%^* 12AX7 multivibrator circuits which would, at random intervals lock up or send odd length dits or dahs, for a solid state keyer, the Micro TO keyer, which I built. It was pretty good, but I like the modern, Mode B iambic keyers better. I can't warm up to the keyboard method, so here I amstuck at this point. I would use the straight key for a few hours on SKN, if I could find my 1957 J-38, but I don't know where it is. And while I am playing the part of curmudgeon, let me say that no matter which is used, straight key, bug, or modern keyer, the use of the good old QLF Q-signal will be desparately needed. Having said all of this (which is waaay too much already) let me say that CW is my favorite mode and I encourage everyone to get on by what ever means they can from using two wires to a keyboard and use CW. I will patiently and gladly work you and won't even use the QLF Q-signal. 73 and Merry Christmas to all. Dave, K4TO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN rigs
In a message dated 12/23/05 1:20:02 PM Eastern Standard Time, [EMAIL PROTECTED] writes: I'm still looking for a real VFO. Build one! 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SKN, SFN?
It seems to me that by now, SKN is dangerously close to becoming Straight Face Night (SFN). Which brings up yet another question: If I build a mechanical key to send with my left foot (QLF, that is), will it be a legal device for SFN... err... I mean SKN? Dave, W6KOW, K2 S/N 5120 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] proper use of straight keys
On Fri, 23 Dec 2005, Bill Coleman wrote: About 30 years ago, 73 magazine had an excellent article about glass arm -- how telegraph operators would get it and it would put them out of a job. It also spoke of how to avoid it -- to use a rather wide spacing, loose trunnions, pivot on your elbow and have your whole arm move when you key. If you key just with the muscles of your wrist, you'll tire out in no time. I've never understood either of these approaches. I set the spacing just wide enough to get good acoustic and kinesthetic feedback on contact, and set the weight just enough to provide clean keying at about 18wpm. Then I rest my middle and index fingers on the key and do everything through the finger muscles (which may be seen operating under the skin). My arm and wrist are static and rest flat on the table, and the only confession I have to make is that I have a bad habit of putting tension in the shoulder. I'm a software engineer by trade and liken this to the way I type -- wrists in contact with desk or laptop. No trouble after nearly 20 years of typing for 8 hours a day, but I'm also a light touch, and VERY picky when it comes to keyboards. The above, however, may also solve a mystery for me. I've cut down or replaced the springs on every single key I've ever owned (a dozen plus) b/c I found the stock tention too high. I've never understood why the stock tension on all of these keys was so high and figured that either every serious operator was doing something similar, or that I was in the minority on strength, dexterity, or preference. It may, however, simply be a matter of technique, and just as I can't understand why anyone would wantonly type with their wrists in the air, I can't understand why anyone would want to use their wrist or arm muscles to operate a key. I can, however, appreciate the fact that if you are keying with your whole arm, you're going to need the kind of tension most keys ship with. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Announcement.
Good Evening, I hope you all are doing well. I am sending this a day earlier than normal since I will not be home tomorrow night. The neighbors have invited me down to be with them, their children, and grandchildren. Ms. P and I had intended staying in Hawaii during this holiday but plans changed. We did not go after all. However, in the spirit of the season, I will be home for Christmas night. Our tree will be lit with one package remaining underneath. Since it just so happens to be Sunday evening and I am not otherwise engaged I will run the two Elecraft CW Nets. Even if I am the only one on the air I think it is a nice way to spend an evening. The obligatory break between the twenty meter and the forty meter nets will allow me to eat a little of the leftover elk back strap from the night before ;) We celebrate Chrismas a might differently here on the Western mountains of Oregon! If you wish to join me in a little Christmas CW please feel free to drop by and set a spell. I am in no hurry and would like the company. I hope the bands are favorable so we can meet whomever is not otherwise engaged with family or friends. But I do think of you all as my family and my friends so do not be shy. If I can hear you I will reply. There will be fir and alder in the firebox and the cat (Sam) will be snoozing and shedding on my lap. If my fingers start to stutter a bit it is because I am allergic to his fur. But we're buds so that simply does not matter. He likes to be petted and I like his company. What more could I ask? Please join us: Sunday 2400z (Sunday 4pm PST) 14050 kHz Monday 0300z (Sunday 7pm PST) 7045 kHz Visit our web site: http://ecn.visionseer.com/ for further details. Thank you for the web space Dan. Stay warm, Kevin. KD5ONS -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.371 / Virus Database: 267.14.1/206 - Release Date: 12/16/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] proper use of straight keys
I've wondered about the same things that Jessie has. I was taught to send using my whole forearm. That is, with my elbow is resting on the table and all of the muscles in my arm are involved in operating the straight key. Looking back, I see this advice in the 1920's at least. Probably earlier. Ever look at the keys from that period? They were for breaking the very dangerous high-voltage circuits in spark transmitters. Wide gaps to avoid arcing, long handles for safety, meaning lots of movement at the end. In the Army, it was impossible to send in a moving vehicle without a lot of spring tension. Even in a parked AN/GRC-26 communications van, people moving about would cause it to bounce and rock enough to disturb sending unless the key was tight. Indeed, I got used to lifting up on the key when opening the contacts and still do that when sending. Aircraft telegraph keys had tight springs for the same reason. Perhaps those are reasons for strong keys and the technique. I won't pretend I can send all day, but I can certainly sit at the key for an hour without any fatigue at all, pumping away at 10 to 15 wpm. Did that a lot with Army CW nets (back when there WERE Army CW nets G). And that action puts zero strain on wrist and fingers. No carpel tunnel syndrome for me. Above about 15 wpm on a straight key I'm working hard, no matter what. I switch to my bug at anything over about 15 wpm. I did take my commercial radio operator's test using a straight key at 20 wpm. Thought I was going to rip that key off of the table G. Passed on first go, though... I've never had a light touch. The keys on my computer are usually heavily worn. There's a visible indent on my space bar (where the edge of my thumbnail hits it). I like movement in my keys, computer or telegraph. Maybe that's the difference that makes the tighter springs feel right to me. And also why I can't feel any desirable difference between my old WWII J-38 and the most expensive key out there... Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] De-lurking and K1 questions
Hello everyone, I'm relatively new to the world of Elecraft kits - I finished building my K1 (# 02132) two weeks ago. I've also been listening in on the various discussions here on the reflector for the last 10 days or so. I've got the 4-band filter board in my K1, and also a 2-band board. The 4-band board works great, I was able to tune it up properly and have been listening all over 40 Meters and 20 Meters. I haven't done any transmitting yet, I'm a bit key-shy so far, and my CW is very rusty. I got my 12wpm endorsement about 7 or 8 years ago, and haven't used it since. That's why I got the K1 actually, I wanted to get my CW back up to speed, and get on HF, so I figured it would be a great way to do both. So for now, I'm just doing a lot of listening, to improve my copying speed. So far, I'm loving the K1. It was a blast to build, and seems to do a great job pulling in the signals. I've got about 90 feet of wire strung up in the backyard, which seems to work great. With the internal ATU, the K1 can tune it up to under 2:1 on 40 through 15 meters. I just finished building the 2-band filter board, which I've configured for 80 Meters and 10 Meters. The 80M side seems to work just fine so far. I've finished all the tests and everything looks good. On 10M though, I can't get any output. The receive function seems to work ok (aligned with XG-2 on 1st harmonic of 14.060 MHz). No matter what I try though, I can't get a milliwatt of power out when transmitting. I know the K1 is not officially rated for 10 Meters but I did some searches in the reflector archives and saw that there had been talk of 10M (also 160M) a few times in the past. Plus, the K1's firmware allows for 28MHz so it's got to be doable, right? :-) I've checked the troubleshooting section of the manual and the tips in there under Power output is low or zero seem to all assume that the problem covers all the bands, whereas I have normal transmit on all bands except the highest one. Does anyone know if the final stages on the RF board are tweaked or set up to prohibit or prevent 10 meter operation? If anyone can give me some pointers or tips on tweaking the K1 to get output on 10 meters, I'd really appreciate it. I know it's highly unlikely but my ideal configuration for the K1 would be a four-band filter board that had 80, 40, 20, and 10 meters. I couldn't use the existing 4-band board since it uses shared low-pass filters and I'd need four separate filters, but everything else on the board should be usable. If I get really ambitious I might still have a go at it -- if I can get the 10M band working on the 2-band board. The way I'd do it is to expand the low- pass area of the filter board, make it a bit wider. The noise- blanker option would no longer fit, but with the addition of one or two more latching relays and another square inch or two of circuit board, there'd be enough room for four discrete low pass filters. The ATU would still fit too, so the only sacrifice would be the noise blanker option. (Actually if the expanded filter board was laid out just right, it could incorporate the noise blanker circuitry and plug into all four 8-pin headers...sort of an all-in-one solution - but that's way more ambitious than me.) Anyhow, thanks in advance for any suggestions or info! Have a great weekend, and happy holidays to everyone! 73 de Stephanie Maks VA3UXB Brampton, Ontario Canada www.felesmagus.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN rigs
Yep, I agree, Bill. I would say use your whole forearm, but no real muscle effort should be required, of course. Keep your elbow and your wrist LOOSE. Even rubbery. Your forearm basically just gently bounces enough to flex your wrist. Your fingers do nothing but perch on the knob. If you don't tense any muscles, the keying is very fluid and it is easy to get into a rhythm which, it appears, you already know. I really miss all the interesting fists you could hear on the ham bands in the years before electronic keyers. I remember an episode of MASH where a concert pianist lost his right arm. Winchester tried to get him interested in playing, by getting him some music written for the left-hand, but the young soldier was adamant that any career in music was over. I remember Winchester telling him, I can play the notes...but I can't play the MUSIC. That's how I remember the old fists. They were individual and as recognizable as a musical style. The electronic keyers allow one to play the notes, but it isn't really music any longer. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Coleman Sent: Friday, December 23, 2005 12:20 PM To: Joseph Trombino Jr Cc: Elecraft Subject: Re: [Elecraft] SKN rigs On Dec 23, 2005, at 12:48 PM, Joseph Trombino Jr wrote: I'll be using a U.S. Navy flameproof hand key...for a couple of QSO's before my wrist breaks down (grin)hope the CW is intelligible. Now, if you have that key adjusted correctly, and are using it correctly, you should be able to send CW all day on a straight key without any problems or pain. About 30 years ago, 73 magazine had an excellent article about glass arm -- how telegraph operators would get it and it would put them out of a job. It also spoke of how to avoid it -- to use a rather wide spacing, loose trunnions, pivot on your elbow and have your whole arm move when you key. If you key just with the muscles of your wrist, you'll tire out in no time. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] proper use of straight keys
The weight of your forearm actuates the key. You are not bearing down with arm muscles with this technique. I keep my spacing fairly close with light tension and free bearings. It's not as smooth now at 63 as it was when my joints were very limber at 15. But it still takes very little effort. I'm no expert on this, but I believe this technique is called the American style. The knob tends to be higher on keys for this style. I believe there is another style called the British style or maybe the European style which I'm pretty sure is closer to what you describe doing and the key knob is much lower to allow you to rest your forearm. Maybe Ron AC7AC remembers something about this. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jessie Oberreuter Sent: Friday, December 23, 2005 3:41 PM To: Bill Coleman Cc: Elecraft Subject: [Elecraft] proper use of straight keys On Fri, 23 Dec 2005, Bill Coleman wrote: About 30 years ago, 73 magazine had an excellent article about glass arm -- how telegraph operators would get it and it would put them out of a job. It also spoke of how to avoid it -- to use a rather wide spacing, loose trunnions, pivot on your elbow and have your whole arm move when you key. If you key just with the muscles of your wrist, you'll tire out in no time. I've never understood either of these approaches. I set the spacing just wide enough to get good acoustic and kinesthetic feedback on contact, and set the weight just enough to provide clean keying at about 18wpm. Then I rest my middle and index fingers on the key and do everything through the finger muscles (which may be seen operating under the skin). My arm and wrist are static and rest flat on the table, and the only confession I have to make is that I have a bad habit of putting tension in the shoulder. I'm a software engineer by trade and liken this to the way I type -- wrists in contact with desk or laptop. No trouble after nearly 20 years of typing for 8 hours a day, but I'm also a light touch, and VERY picky when it comes to keyboards. The above, however, may also solve a mystery for me. I've cut down or replaced the springs on every single key I've ever owned (a dozen plus) b/c I found the stock tention too high. I've never understood why the stock tension on all of these keys was so high and figured that either every serious operator was doing something similar, or that I was in the minority on strength, dexterity, or preference. It may, however, simply be a matter of technique, and just as I can't understand why anyone would wantonly type with their wrists in the air, I can't understand why anyone would want to use their wrist or arm muscles to operate a key. I can, however, appreciate the fact that if you are keying with your whole arm, you're going to need the kind of tension most keys ship with. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] SKN rigs
I spent my first 20 years as a ham building tube gear. All that sawing and filing and drilling no longer holds my interest. I'm toying with building one based on a DDS card and controller. In fact, I mocked up a Drake-style front panel for it which I posted on my website, but there is just something...unnatural...about the idea. hi. Eric KE6US www.ke6us.com _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, December 23, 2005 3:31 PM To: [EMAIL PROTECTED]; Elecraft@mailman.qth.net Subject: Re: [Elecraft] SKN rigs In a message dated 12/23/05 1:20:02 PM Eastern Standard Time, [EMAIL PROTECTED] writes: I'm still looking for a real VFO. Build one! 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SKN rigs
In a message dated 12/23/05 10:23:38 PM Eastern Standard Time, [EMAIL PROTECTED] writes: I spent my first 20 years as a ham building tube gear. All that sawing and filing and drilling no longer holds my interest. I'm toying with building one based on a DDS card and controller. In fact, I mocked up a Drake-style front panel for it which I posted on my website, but there is just something...unnatural...about the idea. hi. You don't need to do all that metalwork if you have a little imagination. Just get a Command set transmitter and use it for the VFO chassis and mechanicals. One that has been heavily modified and is beyond restoration is best, and cheapest. All you want is the chassis, variable caps and coil, and maybe a tube socket or two. Solid state, tube or hybrid, the hard work is all done for you. 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] proper use of straight keys
I never knew names attached to the various techniques, but your description of the weight of the arm doing the work is what I learned too. That's why, in very difficult situations such as a bounding vehicle, I didn't want the spring so tight that I'd have to bear down hard. So when I had to I compromised by slipping my thumb under the knob and lifting up with it to make sure the contacts broke cleanly at the right time in spite of the jostling or for brief bursts of extra-high-speed CW. I wonder if those various techniques came from the military training in the different countries? I already had a commercial radiotelegraph license so the U.S. Army didn't send me to their school. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Emergency in 3 Land
It was written: ... the K1 just seems like a let down after the K2 and KX1. There it is, K1 owners! If you've been feeling depressed, low, and irregular ever since you got your K1, the best all-round compact QRP rig ever made, now you know why. I only wish I'd been smart enough to see it earlier. Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Low BFO Output
First some history. During the BFO test, I discovered my BFO range was low. My upper frequency was 4917.55 and lower frequency was 4914.26. After much consultation with Gary, I tried the various tricks such as padding C174 and C173, adding caps to the junction of X3 and X4, and even adding turns to L33. After much prodding I finally got the range from 4917.55 to 4912.60. So far so good. I also got my filters aligned with Spectrogram which proved to be very easy.Then I noticed my receiver sensitivity appeared to be very low. (Even worse than my ICOM 706. Now that's bad!) Out came the XG2 to perform some MDS tests. Following the directions from the XG2 manual for setting up the K2, inputting 1 uV, and with the AF gain at maximum, I measure .009 volts at the speaker terminals. With no input I can't even get a reading. (Kinda hard to divide by zero.) This led me to the signal tracing portion on the manual. I got as far as the BFO output measurement and there I r! an into the problem of a very low BFO output to U6 pin 1. The manual states .20 to .70 Vrms and I get .05 Vrms with my RF probe. Could my super stiff crystals be the cause of such low output? Perhaps I tried bending the crystals too much? Would a low BFO output cause such low receiver sensitivity? Are there some other components to suspect other than the crystals? Incidently Elecraft is sending me another set of BFO crystals, gratis, to hopefully cure my BFO range problem without padding. Thanks for reading. Merry Christmas and Happy New Year to all Elecrafters. Tedd K6OI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
