[Elecraft] ref osc clicks, really bothers me
howdy, after 20days works,i built my k2(4513#)and ksb2,knb2 and dsp option. it works as a whole,but it clicks and pops while i tune the VFO,every 5khz. I know it is because of the constrution of PLL/VFO, move VFO over 5khz,the division ratio of PLL change and the reference osc and the varicap voltage goes to another end of the pulling range,but it sure be too loud,wihle VFO change at tuning rate of 1khz,it clicks and pops continuously of s-9,it really bothers me! my friend,BD8EB's K2(4514#) clicks too,but more slightly,almost couldn't be felt in most condition,i took view with oscilloscope at TP3 both, it jump and flash with my k2 while the ref. osc got to the other end of pulling range across the boundary,but that didn't occur with 4514#. below is voltage and associated frequency of 4513# and 4514#: 4513#(click loudly) voltage at Pin1 ofU6: 0v /3.27v/7.16v /8v requency of ref. osc(TP3): 12096.36/12095.00/12100.04/12100.41 4514# (silent) voltage at Pin1 of U6: 0v /3.46v / 6.61v /8v frequency of ref. osc(TP3):12088.78/12095.03/12100.09/12101.30 the middle two parameter(3.27v,7.16v,12095.00Mhz,12100.04Mhz) are the boundaries which rig works practically. and i've check out soldering and value of components,all seemed ok,what's the problem? will it work replace L31 with 12uH instead of 10uH ? anyone who could helps me solve the problem? and will be appreciated,thanks. william/BG8AQA [EMAIL PROTECTED] 2005-01-15 _ 免费下载 MSN Explorer: http://explorer.msn.com/lccn/ ___ 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] Elecraft CW Net Announcement
While I'm usually in my office on Sunday afternoon/evening and miss the nets, I'd like to point out that cdx are great on 80 for the western US virtually every day this time of the year. With just a short (45 ft) doublet fed with open wire line, I consistently work all the states west of the Rockies with solid signals in the evenings at 100 watts out. And, believe me, with that <1/4 wave doublet my ERP is way below 100 w! It doesn't take a special antenna to work 1000 miles or so on 80 with a K2/100 as regularly as clockwork. Yeah, we seem to have missed our Christmas snow and had to settle for the ice storm instead. We're plenty well iced up here in town at 300 feet! 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] Elecraft CW Net Announcement
Good Evening, Conditions are conspiring against us but let's see what happens once the RF hits the aether. First there is an X class flare zooming toward us due to smack the ionosphere sometime tomorrow afternoon. The initial effects allowed some interesting DX contacts to be made on 10 meters. Make hay while the sun shines folks 'cause the slower fraction of that flare will most likely create a little havoc. 20 meters may, just may, be really good but 40 will be worse than normal. That's not saying much because 40 has been less than happy recently. But one can never tell. I'll run on 40 as usual but if you can't hear me just trust that I am there. The second problem is more local to Oregon. We have conditions such that icing is occurring at 2000 feet. My antennas were 1 inch in diameter by 10 AM today but have since shrunk. Currently the freezing rain is back and my antennas are getting thick again. I have seen them at 2 inches in diameter before but I do not know either how long they can stay up nor how well they will radiate. I will update the list on whether the antennas are still up early tomorrow afternoon. Keep your appendages crossed and all will go well. Propagation will be good and the antennas will be adequate to the ice load. Please join us : Monday z (Sunday 4pm PST) 14050 kHz Monday 0300z (Sunday 7pm PST) 7045 kHz Visit our web site: http://ecn.visionseer.com/ for net details. Thank you for the web space Dan. No special requirements or exchanges necessary on ECN just check in and see what happens. Thank you for your support, Kevin. KD5ONS -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.12 - Release Date: 1/14/2005 ___ 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] Birdie at10m: a choice between a turkey and an ostrich !
Hi Marinos, Methinks that the Ostrich at 28.266 ( 28.276 in my K2/100 - and a BIG one) could be one of the mixing products of the LO (PLL) and the BFO. Am thinking about major surgery in an attempt to get rid of some or all of the many internal spurii in K2, which can be a problem in single conversion low frequency IF receivers (and transmitters), but no time at the moment. You are not alone. 73, GeoffGM4ESD - Original Message - From: "Marinos Markomanolakis, M.D." <[EMAIL PROTECTED]> To: Sent: Saturday, January 15, 2005 11:34 PM Subject: [Elecraft] Birdie at10m: a choice between a turkey and an ostrich ! > Hi to all, > I know there was a recent discussion in the forum about this birdie singing > at the low end of the 10m band, but did not recall seeing any definitive way > to kill it. > In my case, I want to think of the birdie living in my K2/100 as a > substantially bigger one, a turkey (with the K2100 enabled -power >11w) at > 28.266 (USB), Signal strength S2 with the preamp enabled changes to an > Ostrich (think logarithmically) of a solid S5 !!! at 28.264 when disabling > the 100W option. > ___ 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] New KX-1 hearin' stuff...
Well I made it to the second alignment stage. I found that plugging the headphones into the headphone jack and not the key jack works much better for testing ;) All tests passed with flying colors and the receiver perked right up using my K2 on a dummy load for a signal source. I'm listening to shortwave on 40m right now but gave it a brief brush w/ cw, too. That filter is nice! But...of course! It's an Elecraft... The receiver is hotter than a firecracker...glad I've got that RF Gain control! Knowing Wayne's backpacker bent, mostly likely designed for a wire hung in a coconut tree instead of that 3 element quad on 20m :) Anyway, I'll probably just let it sit here and cook for awhile...I'm having too much fun toolin' around the bands (all 2 of 'em!!)... 73 John K7FD ___ 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] Anybody used this analyzer?
Paul, Yes I have used Spectrum Lab with good success - it has many fine qualities. I still prefer Spectrogram over Spectrum Lab for fiilter alignment, only because Spectrogram's markers are vertical lines while Spectrum Lab uses pointers on the baseline which I find harder to see at a glance. It is a matter of preference, they both do a great job. 73, Don W3FPR - Original Message - Has anybody used this analyzer for set-up? http://people.freenet.de/dl4yhf/spectra1.html ___ 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] Chirp and fm on cw k2 #4494
hello, the sidetone is perfect. --- Hisashi T Fujinaka <[EMAIL PROTECTED]> wrote: > Buzzy on transmit and raspy sidetone for me means > check RFC15 that's > mounted on the bottom of the main board. It's > probably open. > > On Sat, 15 Jan 2005, duard swain wrote: > > > Hello, > > K2 serial 4494 has ssb and 160 meters and 100 watt > > amp. Every thing seems Ok on ssb but I have a > terrible > > chirp on all bands on cw. Listening on tune the > note > > about tone 8. on cw the note tone 1. > > terrible clicks and signal just buzz buzz buzz. > Any > > suggestions? > > Changing bands or power has no effect. My first > QSO > > today RST 591C > > damn damn damn. > > 73, > > Duard Swain [EMAIL PROTECTED] > > > > > > > > __ > > Do you Yahoo!? > > Yahoo! Mail - 250MB free storage. Do more. Manage > less. > > http://info.mail.yahoo.com/mail_250 > > ___ > > 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 > > > > -- > Hisashi T Fujinaka - [EMAIL PROTECTED] > BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + > MSCS(8/03) + $2.50 = latte > __ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail ___ 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] Birdie at10m: a choice between a turkey and an ostrich !
Hi to all, I know there was a recent discussion in the forum about this birdie singing at the low end of the 10m band, but did not recall seeing any definitive way to kill it. In my case, I want to think of the birdie living in my K2/100 as a substantially bigger one, a turkey (with the K2100 enabled -power >11w) at 28.266 (USB), Signal strength S2 with the preamp enabled changes to an Ostrich (think logarithmically) of a solid S5 !!! at 28.264 when disabling the 100W option. These two "birdies" of course are not covered by the background noise of the quiet 10m band and I am sure can/will interfere with Rx down there once it becomes active again. Any thoughts or advice on how to kill/attenuate or move those guys or do I have to live with them ? I can settle for a canary but please help me get these monstrous creatures out of there. 73 to all and enjoy the weekend, Marinos, ki4gin ___ 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] Chirp and fm on cw k2 #4494
Buzzy on transmit and raspy sidetone for me means check RFC15 that's mounted on the bottom of the main board. It's probably open. On Sat, 15 Jan 2005, duard swain wrote: Hello, K2 serial 4494 has ssb and 160 meters and 100 watt amp. Every thing seems Ok on ssb but I have a terrible chirp on all bands on cw. Listening on tune the note about tone 8. on cw the note tone 1. terrible clicks and signal just buzz buzz buzz. Any suggestions? Changing bands or power has no effect. My first QSO today RST 591C damn damn damn. 73, Duard Swain [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Mail - 250MB free storage. Do more. Manage less. http://info.mail.yahoo.com/mail_250 ___ 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 -- Hisashi T Fujinaka - [EMAIL PROTECTED] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ___ 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] Anybody used this analyzer?
Has anybody used this analyzer for set-up? http://people.freenet.de/dl4yhf/spectra1.html Paul Evans & Ann Ramus 813.249.8502 W4/VP9KF FOC 1578 Callsigns: G4BKI, VP9KF, 8P9FT, J37KF, V31WJ W4/G4BKI, J8/VP9KF, J3/G4BKI, W4/VP9KF QSO Total: ~ 296,000 ___ 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: Chirp and fm on cw k2 #4494
hello, Using a general coverage receiver to listen to bfo and vco, the bfo is stable. The VCO is stable on ssb but the VCO clicks chirps and fm on cw. Any suggestions? 73 duard swain wr4q --- duard swain <[EMAIL PROTECTED]> wrote: > Hello, > K2 serial 4494 has ssb and 160 meters and 100 watt > amp. Every thing seems Ok on ssb but I have a > terrible > chirp on all bands on cw. Listening on tune the note > about tone 8. on cw the note tone 1. > terrible clicks and signal just buzz buzz buzz. Any > suggestions? > Changing bands or power has no effect. My first QSO > today RST 591C > damn damn damn. > 73, > Duard Swain [EMAIL PROTECTED] > > > > __ > Do you Yahoo!? > Yahoo! Mail - 250MB free storage. Do more. Manage > less. > http://info.mail.yahoo.com/mail_250 > __ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.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] LR4D @ Lighthouse
Just worked LR4D at a lighthouse with 5 watts. 21020.6 MHz @ 21:43 UTC SA-055. The Radio Club Argentino, LU4AA, will operate from the Lighthouse (ARG-045) on Martin Garcia Island, starting 2100z, January 13th to 1500z, January 16th. They will have two stations on the air on 80-10 meters using the callsigns LR4D (CW) and LR5D (SSB). QSL via LU4AA Radio Club Argentino, direct or by the bureau. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ 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] K2 Roofing filter?
Tom, K6CT, wrote: The Feb 05 QST has review of InRad roofing filter for FT-1000MP series. The article states, "the Ten-Tec Orion and Elecraft K2 are ham band only designs and thus have their first IF and roofing filters in the HF region". The article describes how Icom 7800 has roofing filters at 15 and 6 kHz and that new Yaesu FT9000 DX will have 2 roofing filters at 15, 6 and 3 kHz. The article further states, "Single conversion receivers, such as the K2, can set both the roofing filter and selectivity with a single filter following the mixer. Question, what roofing filter default are we using in the K2 and how do we change it? Or, is there any need to do so. I have noticed on ssb that I get more intermod than during contest ops using cw --- As I understand it, the "roofing filter" is always the first filter in the receiver I.F. chain. In most superhet receivers, there are more than one filter in the I.F. chain. Since the first superhets appeared, the design of this first filter has been a subject of intense interest that profoundly affect the overall performance of the receiver. That hasn't changed, and improved after-market filters have been developed and marketed as replacements for the factory-supplied filters in many rigs. Inrad is one such company. This first I.F. or "roofing" filter is the "second line of defense" your receiver has against unwanted signals. The first line of defense is the input filter that is responsible for suppressing any mixer image responses. In the K2, the input filters are wide enough to pass an entire Ham band without attenuation, but they must effectively suppress image signals. In the K2, the image responses are 10 MHz away. Different input filters are switched in by relays as you change bands. After the mixer, the filters in the I.F. trim away nearby signals in the same band. In multi-conversion receiver designs, the first I.F. filter often is purposely made wide, covering several kHz. Basically it limits the upper frequency limit passed - that is to say it puts a "roof" on the passband. Subsequent mixers and filters then select part of the passband. This allows things like front panel "passband tuning" but at the expense of a lot of added complexity. Complexity not only adds cost, it adds more opportunity for overloading, noise and other bad effects that can compromise the overall receiver performance. As the QST article said, the K2 uses a single conversion design, which provides optimum performance at minimum cost by avoiding extra complexity and dropping features like passband tuning. Instead of a low pass "roofing filter" the K2 uses a passband filter at the I.F input that provides almost all of the selectivity to reject unwanted signals within the band. Since it's a bandpass filter that only passes a certain narrow range of frequencies, perhaps "roofing filter" isn't the right name, but that name seems to be sticking to the first I.F. filter in any receiver. In the K2, there is one "roofing" (passband) filter for CW and a different "roofing" (passband) filter for SSB, if you have the SSB option. As you know, the CW filter is an adjustable-bandwidth filter which you can adjust in CAL FIL. They are in the HF range - about 4.9 MHz as QST said. Since the K2 is a 'single conversion' design, that is the only intermediate frequency. You can adjust the passband of all the K2 "roofing" filters relative to the carrier frequency by adjusting the BFO frequencies in CAL FIL as well. The passband of the CW filters and the position of the filter passbands relative to the signal are the only adjustments provided. The K2 actually has another filter, the 2nd Xfil (second crystal filter). It is a wider, fixed filter at the output of the I.F. amplifier to "clean up" the broadband noise produced by the amplifier. There are no operator adjustments for this filter. Of course the K2 also offers additional filters but they do not work in the intermediate frequency range. There's the analog KAF2 and the digital KDSP2 filter modules. These filters provide additional selectivity and performance features by acting on the audio signal. If you are hearing intermod when the band is crowded with strong signals, 1) be sure the noise blanker is Off and 2) switch the preamp Off and perhaps the attenuator On. The very action that makes the noise blanker work also makes it a good mixer that will produce a lot of byproduct frequencies on the band when strong signals are present. The sensitivity of the K2 is not compromised by turning the preamp off on any frequencies below about 14 MHz unless you are using a very tiny, inefficient antenna (e.g. a short whip). On the lower frequencies with a decent antenna all the preamp does is provide extra overall gain that makes the S-meter jump more and the signal 'sound' louder but that gain can cause intermod if very strong signals over-drive it. The preamp is before the "roofing filter" so it is not protected from ext
[Elecraft] TP2
Hi I have a K2 rig here for repair and this baby has a instable frequentie reading on TP2 Afther touching a part of the bfo its solid (4,917 mc) Q24 is working good, but on U11 (bfo) pin 6 and 7 are 1 volt too low. I a have all ready replace D37 and D38 bun no effect. Question. Why are there 2 cristals? (X3 and X4) The low voltage on pin6 and 7 of U11 is this caused by a defect IC or something else? Peter PC2A ___ 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] Chirp and fm on cw k2 #4494
Move your power supply about 2 feet Northwest. Dan / WG4S / K2 #2456 ps: Actually, the direction might need to be East on cw the note tone 1. terrible clicks and signal just buzz buzz buzz. ___ 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] Re: Operating in cold weather
Robert C. Abell wrote: You may want to use a small separate switcher to power up your KAT100 antenna tuner, if you have one, so that power is provided separately to the tuner before the K2 is turned on.. In my experience, there's no problem if power is supplied to the K2 and KAT100 at the SAME time -- just don't power up the K2 first. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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 Roofing filter?
The Feb 05 QST has review of InRad roofing filter for FT-1000MP series. The article states, "the Ten-Tec Orion and Elecraft K2 are ham band only designs and thus have their first IF and roofing filters in the HF region". The article describes how Icom 7800 has roofing filters at 15 and 6 kHz and that new Yaesu FT9000 DX will have 2 roofing filters at 15, 6 and 3 kHz. The article further states, "Single conversion receivers, such as the K2, can set both the roofing filter and selectivity with a single filter following the mixer. Question, what roofing filter default are we using in the K2 and how do we change it? Or, is there any need to do so. I have noticed on ssb that I get more intermod than during contest ops using cw. 73 Tom K6CT ___ 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] Chirp and fm on cw k2 #4494
Hello, K2 serial 4494 has ssb and 160 meters and 100 watt amp. Every thing seems Ok on ssb but I have a terrible chirp on all bands on cw. Listening on tune the note about tone 8. on cw the note tone 1. terrible clicks and signal just buzz buzz buzz. Any suggestions? Changing bands or power has no effect. My first QSO today RST 591C damn damn damn. 73, Duard Swain [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Mail - 250MB free storage. Do more. Manage less. http://info.mail.yahoo.com/mail_250 ___ 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] Power to K2/100 Observation
I found that powering the K2 and the KPA100 separately causes the resistor R13 in the KPA100 to get hot to the touch. When the power is removed from the K2 and using power only to the KPA100, R13 runs cool. Maybe R13 was put behind the fan for a reason. I believe it it best to run the K2/100 with power supplied only by the Anderson Power Pole connector. Just an observation. Roy Morris W4WFB ___ 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] KIO2 connector safety modification?
According to the "LA3ZA Unofficial Guide to K2 Modifications" page (URL: http://www.qsl.net/la3za/K2/modAny.html) the modification you desire was created by KH6NO and is located at: http://members.cox.net/cwnut/KI02_Serial_2.pdf It is a two-page PDF. On Jan 15, 2005, at 5:40 AM, PA3GYU wrote: I seem to recall that somebody somewhere reported adding a safety measure to the IO connector and the matching cable. It involved plugging one hole in the K2's IO socket and cutting a pin fom the corresponding connector on the cable, I think. The idea was to prevent one from using any old cable in a moment of -let's-get-it-going- rush, a phenomenom we all seem to recognize... ;-) Anyway, being in the proces of building the KIO2, I cannot find the article anywhere but contemplate implementing such a safety feature. I wouldn't know which pin to sacrifice (might take one out that is needed in a future application). Any pointers from the list? - Jack Brindle, W6FB - ___ 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] KIO2 connector safety modification?
There was a another suggestion made, that I've done. Cut a slot in the shell of the male connector directly above pin 3, and solder a bit of wire for a key onto the shell of the female connector. http://members.cox.net/cwnut/KI02_Serial_2.pdf 73, doug From: "W3FPR - Don Wilhelm" <[EMAIL PROTECTED]> Date: Sat, 15 Jan 2005 10:25:27 -0500 Bart, That was my suggestion, and it was only a post on the reflector, I did not write up anything further. The details are as you recall - Pin 4 is not used, so that is the one to sacrifice. To plug the hole, you can use most anything, a whittled down piece of toothpick for example. I used a bit of wire just large enough to stay securely in the hole. I have also implemented a different cure - I just made a short IO cable (about 5 inches long) that is permanently screwed onto the KIO2 connector, the short cable is built just like the normal K2 cable except that I connected the shield on both ends. Since the wires that may damage the K2 are not connected in this short cable, any normal RS-232 cable can be used with no harm, but for shielding/isolation purposes, I use the normal K2 to PC cable. So now you have 2 ways of providing protection - take your pick. 73, Don W3FPR - Original Message - > > I seem to recall that somebody somewhere reported adding a safety measure > to the IO connector and the matching cable. It involved plugging one hole > in the K2's IO socket and cutting a pin fom the corresponding connector on > the cable, I think. > The idea was to prevent one from using any old cable in a moment > of -let's-get-it-going- rush, a phenomenom we all seem to recognize... ;-) > > Anyway, being in the proces of building the KIO2, I cannot find the > article anywhere but contemplate implementing such a safety feature. I > wouldn't know which pin to sacrifice (might take one out that is needed in > a future application). Any pointers from the list? > > Best, > > Bart de PA3GYU > ___ 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] K2 #4650
Me too... I just ordered my KX1 this week... and I have a full options loaded K2 QRO & QRP... I sold all my rig... except my Elecraft ones 73 Le 05-01-15, à 10:35, Eberhart, Russell a écrit : I am happy to announce that K2 serial 4650 is on the air. I want to thank Jerry McCarthy (wa2dkg) for his help in building the unit. His workmanship is outstanding. I am totally blown away by the quality of the receiver. The K2 joins my KX1 number 742. Hmmm, looks like Elecraft is getting to be a habit with me. Russ N9IV ___ 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 === Jean-François Ménard / VA2VYZ Elecraft K2 #4130 http://homepage.mac.com/jfmenard === ___ 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 #4650
I am happy to announce that K2 serial 4650 is on the air. I want to thank Jerry McCarthy (wa2dkg) for his help in building the unit. His workmanship is outstanding. I am totally blown away by the quality of the receiver. The K2 joins my KX1 number 742. Hmmm, looks like Elecraft is getting to be a habit with me. Russ N9IV ___ 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] KIO2 connector safety modification?
Bart, That was my suggestion, and it was only a post on the reflector, I did not write up anything further. The details are as you recall - Pin 4 is not used, so that is the one to sacrifice. To plug the hole, you can use most anything, a whittled down piece of toothpick for example. I used a bit of wire just large enough to stay securely in the hole. I have also implemented a different cure - I just made a short IO cable (about 5 inches long) that is permanently screwed onto the KIO2 connector, the short cable is built just like the normal K2 cable except that I connected the shield on both ends. Since the wires that may damage the K2 are not connected in this short cable, any normal RS-232 cable can be used with no harm, but for shielding/isolation purposes, I use the normal K2 to PC cable. So now you have 2 ways of providing protection - take your pick. 73, Don W3FPR - Original Message - I seem to recall that somebody somewhere reported adding a safety measure to the IO connector and the matching cable. It involved plugging one hole in the K2's IO socket and cutting a pin fom the corresponding connector on the cable, I think. The idea was to prevent one from using any old cable in a moment of -let's-get-it-going- rush, a phenomenom we all seem to recognize... ;-) Anyway, being in the proces of building the KIO2, I cannot find the article anywhere but contemplate implementing such a safety feature. I wouldn't know which pin to sacrifice (might take one out that is needed in a future application). Any pointers from the list? Best, Bart de PA3GYU ___ 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: Operating in cold weather
Joe, Your Astron RS-20 power supply is all you need to power up a K2/100. It will handle the job extremely well. That's exactly what I use up here in the frozen north country. You may want to use a small separate switcher to power up your KAT100 antenna tuner, if you have one, so that power is provided separately to the tuner before the K2 is turned on.. Bottom line- forget about using the Alinco switching supply! 73, Bob VE3XM K2 S/N 02676 K2/100 S/N 04031 ___ 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] KIO2 connector safety modification?
Guys, I seem to recall that somebody somewhere reported adding a safety measure to the IO connector and the matching cable. It involved plugging one hole in the K2's IO socket and cutting a pin fom the corresponding connector on the cable, I think. The idea was to prevent one from using any old cable in a moment of -let's-get-it-going- rush, a phenomenom we all seem to recognize... ;-) Anyway, being in the proces of building the KIO2, I cannot find the article anywhere but contemplate implementing such a safety feature. I wouldn't know which pin to sacrifice (might take one out that is needed in a future application). Any pointers from the list? Best, Bart de PA3GYU ___ 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] 24 Hours left to purchase a 2005 QRP Contest Calendar
Hello, All calendars orders received via PayPal will be in the mail on Saturday morning. Thanks to all that did purchase a calendar. There is only 12 hours before I close out the 2005 QRP Contest Calendar. 15 Jan. 2005 @ 23:59 UTC is the last time to purchase a 2005 QRP Contest Calendar. If you would like to pay by check, please let me know via an e-mail. Check out: www.n3epa.org Click on: 6th Annual QRP Contest Calendar for 2005 72 Ron de N3EPA EPA QRP Club El Presidente' [EMAIL PROTECTED] www.n3epa.org ___ 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] Operating in cold weather
On Fri, 2005-14-01 at 20:57 -0600, Joe Ford wrote: > First question: Am I correct in attributing this drop in voltage to the > cold? I think it was about 45 degrees in the room at that time. 45 degrees is not particularly cold; I wouldn't expect any power supply to have problems at this temperature. It's easy enough to test: warm it up, check the voltage, cool it down, check the voltage - repeat a few times to be sure that the temperature is the cause. Your fridge can do double duty as a test chamber. > need another supply for the K2. Second question: Can someone suggest a > smaller supply to use with the K2 which will not suffer in the cold > (most of the small ones seem to be switchers)? Or, final question, Is it > really necessary to use separate supplies for the K2 and KPA or > could/would the Astron power both. As Don already said, you don't need a power supply hooked up to the K2's power connector, only to the KPA100's. If the exception that Don mentioned applies to you (KPA100 in separate enclosure without a DC connection to the K2) then you could connect the same supply to both. -- 73, Brian VE7NGR ___ 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
