Re: [Elecraft] Comparison: K3 and SDR 5000A
As I understand it, latency is no longer an issue. Latency issues with the early versions of PowerSDR and the SDR-1000 have been resolved. That being said, signal processing latency is a fact of life for all digital radios. We are talking microseconds, I beg to differ. Latency (delay) in a DSP-based radio (or SDR, if you prefer) is caused by several things. The one we can't get rid of is the filter delay. By making shorter filters (fewer taps), we can reduce the delay through the filter, but at the expense of filter performance. We get wider skirts, less ultimate rejection, more passband ripple, or some combination of these three factors. However, DSP can be applied in many ways. One sure way to increase latency is by processing the incoming signal in blocks. This means you collect a certain number of samples, then process them all at once while collecting the next block, etc. PC implementations of DSP typically use this method. Another method is to process the signal after each sample. This eliminates the block delay. This is how the K3 processes signals. As an example, let's consider an SDR using 2048-sample blocks (common in the SDR world) and 96 kHz sampling. It will take (2048/96,000 =) 22 milliseconds to acquire this block. This is 22 ms more delay, or latency, than a K3 will have, assuming similar delays in each radio for the filter(s). For a real world example, I connected an SDR-14 receiver (with associated dual core 3 GHz PC) to the IF output of my K3. I then tuned in an SSB signal and listened to it through the K3's speaker as well as demodulating it and listening through the PC's audio system. The audio coming from the PC was very noticeably delayed versus the audio from the K3. This delay or latency may not be an issue in all cases. But in come common operational scenarios, like QSK CW or SSB using syllabic VOX, it can be critical. By paying close attention to such latency issues in the architecture of the K3, we are able to provide QSK CW operation at speeds well over 30 WPM without reducing the taps in the filters or otherwise compromising the performance of the radio. The 22 ms additional delay cited in the example above would kill QSK performance. Latency is just one of many considerations that arise when comparing radios, architectures, and one's own needs and preferences. 73, Lyle KK7P ___ 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 Seven Years Old
I can still remember my first ALMOST QSO right after assembly of K2 #1574, some 6 or 7 years ago. I was verifying output power on 10m to my low dipole was a bit disappointed to see only 8w. But than a European station came back to my SSB TESTING TESTING HLLO with a QRZ? PLEASE. I was amazed and embarrassed and never completed the QSO, but it was at that moment that I fell in love again.. 3000+ qsos later, with some improvements and touchup, and it's on my desk, at the front line, never to be moved away. What a rig ! 73 Isaac, 4Z4TL ___ 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] Original K3 announouncement
Does anyone have a copy of the original K3 announcement that appeared here back in April? I looked in archives but can't find it. I'd like to keep a copy. BTW, mines in first batch, just hanging in there... -- Anyone can do any amount of work, provided it isn't the work he is supposed to be doing at that moment. -Robert Benchley ___ 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 S/N3068 First QSO
Hi Guys, I have just had my first SSB QSO on 40 metres with my K2 S/N 3068. Many thanks to the many people who have helped me through the various problems (all self-inflicted, I hasten to add) that I have experienced. What a great group this is, so many ready to offer expert advice. 73 Kevin VK3DAP / ZL2DAP ___ 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] K3 shipping
Hi All, Sorry to add to all the mail, but I see there appears to have been changes to latter production runs of the K3’s, as per the shipping schedule page. New K3 (3rd Pr. run) orders received after Oct 1st are scheduled for shipment in early January. I assume by this that runs 1 and 2 have been made bigger, as from memory, I was in Run 3 when I ordered back in mid-June. Apologies if I've missed something here, but can't remember reading anything about this ?? Cheers David, Vk2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.6/1059 - Release Date: 9/10/2007 8:44 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
[Elecraft] K3 Shipping box sizes
Hi Guys, Can anybody tell me, from the Elecraft or list, what are the sizes of the K3 shipping boxes, for the K3 Transceiver Modular Kit (including KAT3, KPA3 and MH2) and K3 Transceiver Factory Assembled? Any answer would be very much appreciated. 73, Ruchan Ozatay, TA2AH ___ 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] K3 shipping
I placed my order in late Sept. That puts me squarely in the 3rd production run but prior to the Oct 1 date. Could it be that they're saying only orders after Oct 1 are scheduled for early Jan but earlier 3rd run orders are still targeted for Dec? I think there is a LOT of stuff to happen between now and then. The prediction of when they will ship is a lot like the weather report here in the eastern USA - wishful thinking. I'm going to sit patiently and wait for my K3/10. I'll have a lot of fun with my K2/100 in the interim. If some extra money appears, I'll probably change my order to a K3/100. Eventually a box will appear and my fun will shift. Until then, I'll continue to watch the ship predictions knowing that they are only rough estimates, not promises, and that they are affected by some elements completely out of Elecraft's control (much like the weather). 73 Cheers! - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 - -Original Message- ... there appears to have been changes to latter production runs of the K3's, as per the shipping schedule page. New K3 (3rd Pr. run) orders received after Oct 1st are scheduled for shipment in early January. Cheers David, Vk2NU ___ 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] K3 shipping
No, it say's ... New K3 (3rd Pr. run) orders received after Oct 1st are scheduled for shipment in early January. If you placed your order in Sept, that puts you in the 2nd run and you should get yours sometime after 12-Nov. What makes to think you are in the 3rd run? On 10/10/07 12:35, Darwin, Keith [EMAIL PROTECTED] sent: I placed my order in late Sept. That puts me squarely in the 3rd production run but prior to the Oct 1 date. Could it be that they're saying only orders after Oct 1 are scheduled for early Jan but earlier 3rd run orders are still targeted for Dec? -- The soul is the same in all living creatures, although the body is different. -Hippocrates, physician (460-c.377 BCE) ___ 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] She's Beautiful (K3s Start Shipping! )
-Original Message- Here's a picture of Lisa with the first K3/100 kit of this batch going out the door. :-) http://www.elecraft.com/K3/Lisa%20with%20K3%20a%20sm.JPG - Awe, man, she's beautiful. Would you look at her! All dressed in white with a cute little red dimple. She looks like a radiant bride adorned for her husband. And look at that figure, that shape. I'd guess her measurements to be near perfect 24 x 24 x 30. And she's being held by a very attractive, very classy woman. :-) - Keith N1AS - - K2 5411.ssb.100 - - K3 wave 3 - - I sure hope I don't get in trouble for this ... - ___ 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] K3 shipping
At the time of my order, 1st and 2nd runs were sold out. That told me my order was 3rd run. I think all it's saying is that orders after Oct 1 are scheduled for shipment in early Jan. I don't think it is saying anything about orders prior to that which leaves lots of room for speculation. Fun, fun, fun LOL! - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 - -Original Message- No, it say's ... New K3 (3rd Pr. run) orders received after Oct 1st are scheduled for shipment in early January. If you placed your order in Sept, that puts you in the 2nd run and you should get yours sometime after 12-Nov. What makes to think you are in the 3rd run? ___ 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] [K3][K2] best way to work split
While I'm waiting for my K3, I wonder if people would comment on the best way to work split - my logging program (MacLoggerDX) does it via the 2nd VFO. I think from older articles I've read, some people use RIT (or XIT), perhaps on rigs that didn't have a 2nd VFO. What do you guys use - I suppose it depends on mode and how much split? -- Write the bad things that are done to you in the sand, but write the good things that happen to you on a piece of marble. -Arabian wisdom ___ 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] FOR SALE
I am forwarding this on behalf of my good friend and fellow QRPer Norm K9NK: I am selling my complete FT-817 station for a reduced price of $675 including shipping. All in Excellent Condition,non-smoker. Please contact me at [EMAIL PROTECTED] 73's -- Norm K9NK FT-817 - has 60 meter mod - all original accessories including including: all antennas,mic,manual and case W4RT Tilt Stand MFJ-1317 mini power supply for FT-817 with matching power plug PAC-12 antenna - includes coils for 80, 40, 20, 15, 10 and radial kit PAC-12 antenna delux carrying case SST-1 - mini transmatch 80-10 rated at 25 watts size is about 4x2x3 - has coax and open wire connectors Mini SWR Meter MK-33 Whiterook cw paddle 4.5 AH Gell Cell Extra Case for FT-817 - padded and securely holds rig with velcor straps Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.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] Magnetic Fields
To All, First to the good people at elecraft, congratulations on shipping the K3s. Second: This may have been presented to the forum before but I have not seen it. Be careful with exposing your K2 to strong magnetic fields, especially ones from power transformers. I just finishing restoring an old Heathkit SB220 linear and in setting up the station placed the linear to the left of the K2. When I was using the linear I started to notice some strange distortion in the received audio from the K2 and other stations commented on distortion on my audio. On CW all the received signals seem to have a strange AC ripple on them. It was a very small amount but still there. Stations receiving me also reported a slight amount of ripple on my signal. All this is while the linear was on but not necessarily being used (I installed a Standby switch in the SB220). With the linear powered down, everything was perfectly normal, both on received and transmitted signals. The power transformers in the SB220 are on the linear's right side. This was the side the K2 was located near. I rearranged the station to have an antenna coupler between the K2 and the SB220 linear, a spacing of about 10 inches, and that totally solved the AC ripple problem both on transmit and receive with the linear powered up and on-line. Just thought I would pass this on to everyone. 73 Dave KD1NA ___ 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] Thanks
Thanks to all who posted the original announcement of the K3 -- A good cook is like a sorceress who dispenses happiness. -Elsa Schiaparelli, fashion designer (1890-1973) ___ 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] How many K3's in a production run?
Over the past few weeks I have been hearing 1st, 2nd, 3rd production run. I ordered my K3 in early June at the HamCom hamfest in Plano, Tx and after talking to Elecraft I found out that I am on the second production run. How many K3's are in a production run? I have talked to a number of local hams and I get a different number from each. Mike Harvey AB0TX Looking forward to winning a few contests with the new K3!___ 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] Magnetic Fields
Hi, Elecraft already have a mod kit for this kind of behavior since 2005. The part number is : K2VCOSHLDKT You can also take a look at the documentation provided at : http://www.elecraft.com/manual/K2%20VCO%20sheild%20mod%20rev%20E.pdf Have a nice day. JF VA2VYZ --- Dave Jeanne Robertson [EMAIL PROTECTED] a écrit : To All, First to the good people at elecraft, congratulations on shipping the K3s. Second: This may have been presented to the forum before but I have not seen it. Be careful with exposing your K2 to strong magnetic fields, especially ones from power transformers. I just finishing restoring an old Heathkit SB220 linear and in setting up the station placed the linear to the left of the K2. When I was using the linear I started to notice some strange distortion in the received audio from the K2 and other stations commented on distortion on my audio. On CW all the received signals seem to have a strange AC ripple on them. It was a very small amount but still there. Stations receiving me also reported a slight amount of ripple on my signal. All this is while the linear was on but not necessarily being used (I installed a Standby switch in the SB220). With the linear powered down, everything was perfectly normal, both on received and transmitted signals. The power transformers in the SB220 are on the linear's right side. This was the side the K2 was located near. I rearranged the station to have an antenna coupler between the K2 and the SB220 linear, a spacing of about 10 inches, and that totally solved the AC ripple problem both on transmit and receive with the linear powered up and on-line. Just thought I would pass this on to everyone. 73 Dave KD1NA ___ 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 Obtenez des réponses à vos questions ! Profitez des connaissances et des opinions des internautes sur Yahoo! Questions/Réponses http://fr.rd.yahoo.com/evt=42054/*http://qc.answers.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
Re: [Elecraft] [K3][K2] best way to work split
David Ferrington, M0XDF wrote: While I'm waiting for my K3, I wonder if people would comment on the best way to work split - my logging program (MacLoggerDX) does it via the 2nd VFO. I think from older articles I've read, some people use RIT (or XIT), perhaps on rigs that didn't have a 2nd VFO. What do you guys use - I suppose it depends on mode and how much split? Split situations for me are nearly always for an entity I need, usually DXpeditions. I always use SPLIT on the K2 because I can fix my TX freq, and I can adjust it separate from the RX as the pile-up changes. I've probably used RIT for a quick split operation maybe twice. The problems with RIT: 1. Changing your TX freq with the VFO changes your RX freq too 2. For comfortable use, the range on the RIT needs to be smaller. The K2 lets me choose, but big ranges make it very hard to tune with the little knob. I've never used XIT. 73, Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 - www.cqp.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
[Elecraft] She's Beautiful (K3s Start Shipping! )
Lisa refused to wear the bikini they bought for the photo shoot? H... [Elecraft] She's Beautiful (K3s Start Shipping! ) Darwin, Keith Keith.Darwin at Goodrich.com Wed Oct 10 07:44:51 EDT 2007 Previous message: [Elecraft] K3s Start Shipping! Next message: [Elecraft] Original K3 announouncement -Original Message- Here's a picture of Lisa with the first K3/100 kit of this batch going out the door. :-) http://www.elecraft.com/K3/Lisa%20with%20K3%20a%20sm.JPG - Awe, man, she's beautiful. Would you look at her! All dressed in white with a cute little red dimple. She looks like a radiant bride adorned for her husband. And look at that figure, that shape. I'd guess her measurements to be near perfect 24 x 24 x 30. And she's being held by a very attractive, very classy woman. :-) ___ 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 wanted
I'm looking to purchase a K2 with the following options: KSB2, K160RX, K60XV, KNB2, KAF2, KAT2, KIO2. I'd like a later model, professionally built and aligned, with all updates, from a non-smoking shack. mike kb3lan ___ 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] Milestone Technologies
Guy's.. Anyone on the list know if Marshall Emm @ Milestone Technologies is still around..? I have been trying to find out how much a few of his stocked publications would be in total ...to be delivered To Scotland... I've sent a few e-mails thru his website e-mail client, and also through my own to no avail to date.. Anyone help..? 72's 73's[EMAIL PROTECTED] Andy GM0NWI Elecraft K2 Fully Loaded QRP S/n 01432 Elecraft K2 Fully Loaded QRO S/n 05469 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.6/1060 - Release Date: 09/10/2007 16:43 ___ 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] Standby for a Great Manual!
As a reviewer of the draft Owners Manual, I've got to tell you that you're in for a treat later today when Wayne puts a revised version up on the Web site. Not that any of the Elecraft Faithful will be surprised - quality documentation has always been a high order value at Elecraft. I think it's an important differentiator. So many manufacturers of ham radio equipment (or any kind of technology, for that matter) seem to think that the manual is one of those Dumb Things I Gotta Do. Their docs tend to be nothing but a list of buttons, dials, connectors and commands and (sort of) what they do. The Elecraft docs also tell you how to use the product and how it works. This one includes a lot of what tech writers call task-oriented documentation that explains the sequence of operations needed to achieve a real operational goal. There is a good Quick Start section for the huge majority who neither want nor need to read every last word. But do read those words eventually. Even as an active field tester, I learned several new tricks to make my K3 work better just by reading the draft. Take particular note of the Theory of Operation section which provides just the right amount of detail for the ham who wants to know what's inside the box. You're going to like it. /Rick N6XI ___ 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: printing new manual
When Eric and Wayne release the wonderful new manual, will
you fellas please check with your local Kinko or
Office{Depot,Max} to see what it will cost to print it. I
have had quotes at $0.87/page in color and $0.50 in b/w.
That seems outrageous to me for a pdf document that you
bring to them on a memory stick.
---
I see that TAPR is offering the 168 page DCC Conference
document from http://www.lulu.com/en/products/ a
print-on-demand printing house. The price comes out to about
$25 but that seems to be very realistic for such a large
document. Would that possibly be an alternative to local
printing?
tnx,
72/73 Ken N9VV
___
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Re: [Elecraft] re: printing new manual
I recently had OfficeMax print 15 copies of a 100-page document from
a PDF file I supplied on a CD-ROM. They printed double-sided, in
black and white, and the total cost per copy was less than $10 each.
73!
Dan KB6NU
--
CW Geek and MI Affiliated Club Coordinator
Get my Tech and General Class study guides at www.kb6nu.com/tech-manual
LET'S GET MORE KIDS INTO HAM RADIO!
On Oct 10, 2007, at 2:58 PM, Ken N9VV wrote:
When Eric and Wayne release the wonderful new manual, will you
fellas please check with your local Kinko or Office{Depot,Max} to
see what it will cost to print it. I have had quotes at $0.87/page
in color and $0.50 in b/w. That seems outrageous to me for a pdf
document that you bring to them on a memory stick.
---
I see that TAPR is offering the 168 page DCC Conference document
from http://www.lulu.com/en/products/ a print-on-demand printing
house. The price comes out to about $25 but that seems to be very
realistic for such a large document. Would that possibly be an
alternative to local printing?
tnx,
72/73 Ken N9VV
___
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[Elecraft] K3 Manual Question
Great news on the K3 manual being put up on the website sometime this week. I know it will be excellent based on my experience with the K1 and K2 manuals. But it prompts me to ask a question I've been wondering about lately. How does Elecraft plan to handle updates to the manual so that it keeps current with new firmware releases? Certainly the pdf can be kept up-to-date, but how about the printed version? It is nice to have a high quality printed version, and I wouldn't mind paying a reasonable amount to keep my printed operating manual up-to-date. I guess the options would be reprinting the entire manual or maybe making the pages replaceable individually in some kind of attractive and convenient sized binder system. Any thoughts? 73 ... Craig AC0DS ___ 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: KPA 100 pA issues,,,, puzzle...
initial symptom was the autotuner would lock up/ reset the radio when tuning ...only on 40 , so I ordered the PA upgrade kit... when running the k2 @ qrp .. the swr reads correct and the PA is basically out of the circuit,.1.3 this is on 40. both on the set AND THE LP-100 now my LP100 is giving me a big clue what is going bad in my K2/100 PA. The problem is that I still don't understand enough of the basics../.. but when i dial up over 15 watts the swr reads 9.98 !!! but when i go back to under 15 watts the swr reads correctly...(LP-100) I know something is wacky in the kpa100 and i thought it was in the tuner... I have just completed the last of the upgrades to the KPA , but it appears to not have helped... oN TYHE k2/100 the swr seems to read double when on the PA vs the qrp,on the other bands , but 40 has bigger /*issues...such as locking up the autotuner... .which was the original sympton... on 20 ,,,ssb xmit on , no modulation I get 9.9 swr on the lp-100 ...but when i modulate i get the real 1.6 swr and on the dummy load everything is fine ,, none of the other radios including another k2/100 split in a EC2 case have problems with the antennas AND I WAS WANTING TO START MAKING CABLES FOR THE K3 bill ___ 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] K3 questions
___ 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: KPA 100 pA issues,,,, puzzle...
you seems to have a bad solder on the band pass section on the KPA100. If you have problem on 40m only, take a look at L4, L5 and L6. hope this help. Le 07-10-10 à 16:04, Bill NY9H a écrit : initial symptom was the autotuner would lock up/ reset the radio when tuning ...only on 40 , so I ordered the PA upgrade kit... when running the k2 @ qrp .. the swr reads correct and the PA is basically out of the circuit,.1.3 this is on 40. both on the set AND THE LP-100 now my LP100 is giving me a big clue what is going bad in my K2/100 PA. The problem is that I still don't understand enough of the basics../.. but when i dial up over 15 watts the swr reads 9.98 !!! but when i go back to under 15 watts the swr reads correctly...(LP-100) I know something is wacky in the kpa100 and i thought it was in the tuner... I have just completed the last of the upgrades to the KPA , but it appears to not have helped... oN TYHE k2/100 the swr seems to read double when on the PA vs the qrp,on the other bands , but 40 has bigger /*issues...such as locking up the autotuner... .which was the original sympton... on 20 ,,,ssb xmit on , no modulation I get 9.9 swr on the lp-100 ...but when i modulate i get the real 1.6 swr and on the dummy load everything is fine ,, none of the other radios including another k2/100 split in a EC2 case have problems with the antennas AND I WAS WANTING TO START MAKING CABLES FOR THE K3 bill ___ 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 [EMAIL PROTECTED] ___ 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: [LP-100] Re: KPA 100 pA issues,,,, puzzle...
Almost sounds like a parasitic oscillation, Bill. Have you scoped the output? 73, Larry N8LP Bill NY9H wrote: initial symptom was the autotuner would lock up/ reset the radio when tuning ...only on 40 , so I ordered the PA upgrade kit... when running the k2 @ qrp .. the swr reads correct and the PA is basically out of the circuit,.1.3 this is on 40. both on the set AND THE LP-100 now my LP100 is giving me a big clue what is going bad in my K2/100 PA. The problem is that I still don't understand enough of the basics../.. but when i dial up over 15 watts the swr reads 9.98 !!! but when i go back to under 15 watts the swr reads correctly...(LP-100) I know something is wacky in the kpa100 and i thought it was in the tuner... I have just completed the last of the upgrades to the KPA , but it appears to not have helped... oN TYHE k2/100 the swr seems to read double when on the PA vs the qrp,on the other bands , but 40 has bigger /*issues...such as locking up the autotuner... .which was the original sympton... on 20 ,,,ssb xmit on , no modulation I get 9.9 swr on the lp-100 ...but when i modulate i get the real 1.6 swr and on the dummy load everything is fine ,, none of the other radios including another k2/100 split in a EC2 case have problems with the antennas AND I WAS WANTING TO START MAKING CABLES FOR THE K3 bill Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/LP-100/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/LP-100/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ ___ 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
Fw: [Elecraft] Magnetic Fields
Thanks JF I will order 2 kits as I have 2 K2s. I know that the VCO was sensitive to AC hum when I placed my hand near T5 but I didn't realize it that sensitive. Again many thanks and 73 Dave KD1NA - Original Message - From: Jean-François Ménard [EMAIL PROTECTED] To: Dave Jeanne Robertson [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Wednesday, October 10, 2007 10:31 AM Subject: RE : [Elecraft] Magnetic Fields Hi, Elecraft already have a mod kit for this kind of behavior since 2005. The part number is : K2VCOSHLDKT You can also take a look at the documentation provided at : http://www.elecraft.com/manual/K2%20VCO%20sheild%20mod%20rev%20E.pdf Have a nice day. JF VA2VYZ --- Dave Jeanne Robertson [EMAIL PROTECTED] a écrit : To All, First to the good people at elecraft, congratulations on shipping the K3s. Second: This may have been presented to the forum before but I have not seen it. Be careful with exposing your K2 to strong magnetic fields, especially ones from power transformers. I just finishing restoring an old Heathkit SB220 linear and in setting up the station placed the linear to the left of the K2. When I was using the linear I started to notice some strange distortion in the received audio from the K2 and other stations commented on distortion on my audio. On CW all the received signals seem to have a strange AC ripple on them. It was a very small amount but still there. Stations receiving me also reported a slight amount of ripple on my signal. All this is while the linear was on but not necessarily being used (I installed a Standby switch in the SB220). With the linear powered down, everything was perfectly normal, both on received and transmitted signals. The power transformers in the SB220 are on the linear's right side. This was the side the K2 was located near. I rearranged the station to have an antenna coupler between the K2 and the SB220 linear, a spacing of about 10 inches, and that totally solved the AC ripple problem both on transmit and receive with the linear powered up and on-line. Just thought I would pass this on to everyone. 73 Dave KD1NA ___ 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 Obtenez des réponses à vos questions ! Profitez des connaissances et des opinions des internautes sur Yahoo! Questions/Réponses http://fr.rd.yahoo.com/evt=42054/*http://qc.answers.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] re: printing new manual
Kudos to Elecraft for going the extra mile with the operators manual. I laser printed the K2 PDF manual which I first scribbled construction notes and parts changes onto, then checked off each step as it was performed, and at times even soldered on the pages. The pristine original manual was kept by the radio for reference after the build. Market standard these days is to throw a CDROM in the box and the documents are rarely worth referring to. Examples of good documentation that I've seen include Ten Tec VI+, Yaesu FT890AT, and the original FT101E service manual. Oh yeah K2!!! My impression is that the printed documentation is also often representative of the firmware in the radio. If it's slapped together and incomplete... [Elecraft] Standby for a Great Manual! Rick Tavan N6XI rtavan at gmail.com Wed Oct 10 14:44:59 EDT 2007 As a reviewer of the draft Owners Manual, I've got to tell you that you're in for a treat later today when Wayne puts a revised version up on the Web site. Not that any of the Elecraft Faithful will be surprised - quality documentation has always been a high order value at Elecraft. I think it's an important differentiator. So many manufacturers of ham radio equipment (or any kind of technology, for that matter) seem to think that the manual is one of those Dumb Things I Gotta Do. Their docs tend to be nothing but a list of buttons, dials, connectors and commands and (sort of) what they do. The Elecraft docs also tell you how to use the product and how it works. This one includes a lot of what tech writers call task-oriented documentation that explains the sequence of operations needed to achieve a real operational goal. There is a good Quick Start section for the huge majority who neither want nor need to read every last word. But do read those words eventually. Even as an active field tester, I learned several new tricks to make my K3 work better just by reading the draft. Take particular note of the Theory of Operation section which provides just the right amount of detail for the ham who wants to know what's inside the box. You're going to like it. /Rick N6XI ___ 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] Comparison: K3 and SDR 5000A
Lyle, I don't believe you can get something for nothing. The sample-in/sample-out may work at steady state, but if you use an FIR filter, it still takes a number of samples and time to fill the filter pipeline, as well as empty it. My DSP may be a bit rusty, but I believe that the edges of a CW signal (the no-signal to signal transition and the signal to no-signal transition) still takes time to propogate through the FIR filter, and appears as a signal delayed in time at the output. What is it about the K3 architecture that eliminates this latency? How many taps does the FIR filter have that is used in the K3 for a 30 WPM QSK mode, and what is the sample rate of the A/D in that mode? 73, Rich W1EZ - Original Message - From: Lyle Johnson [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, October 10, 2007 2:13 AM Subject: Re: [Elecraft] Comparison: K3 and SDR 5000A As I understand it, latency is no longer an issue. Latency issues with the early versions of PowerSDR and the SDR-1000 have been resolved. That being said, signal processing latency is a fact of life for all digital radios. We are talking microseconds, I beg to differ. Latency (delay) in a DSP-based radio (or SDR, if you prefer) is caused by several things. The one we can't get rid of is the filter delay. By making shorter filters (fewer taps), we can reduce the delay through the filter, but at the expense of filter performance. We get wider skirts, less ultimate rejection, more passband ripple, or some combination of these three factors. However, DSP can be applied in many ways. One sure way to increase latency is by processing the incoming signal in blocks. This means you collect a certain number of samples, then process them all at once while collecting the next block, etc. PC implementations of DSP typically use this method. Another method is to process the signal after each sample. This eliminates the block delay. This is how the K3 processes signals. As an example, let's consider an SDR using 2048-sample blocks (common in the SDR world) and 96 kHz sampling. It will take (2048/96,000 =) 22 milliseconds to acquire this block. This is 22 ms more delay, or latency, than a K3 will have, assuming similar delays in each radio for the filter(s). For a real world example, I connected an SDR-14 receiver (with associated dual core 3 GHz PC) to the IF output of my K3. I then tuned in an SSB signal and listened to it through the K3's speaker as well as demodulating it and listening through the PC's audio system. The audio coming from the PC was very noticeably delayed versus the audio from the K3. This delay or latency may not be an issue in all cases. But in come common operational scenarios, like QSK CW or SSB using syllabic VOX, it can be critical. By paying close attention to such latency issues in the architecture of the K3, we are able to provide QSK CW operation at speeds well over 30 WPM without reducing the taps in the filters or otherwise compromising the performance of the radio. The 22 ms additional delay cited in the example above would kill QSK performance. Latency is just one of many considerations that arise when comparing radios, architectures, and one's own needs and preferences. 73, Lyle KK7P ___ 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] Comparison: K3 and SDR 5000A
... The sample-in/sample-out may work at steady state, but if you use an FIR filter, it still takes a number of samples and time to fill the filter pipeline, as well as empty it... Exactly. As I stated, you can't get away from the delay in the filter. I was describing *additional* delay beyond that of the filter. If the system is sampling at 48 kHz, a sample-by-sample architecture will have 20.8 *micro*seconds delay before the subsequent filters, etc., see the signal. If it is block based, and the block size is 1024 samples, then at the same 48 kHz sample rate you'd have 22 *milli*seconds of delay before the subsequent filters, etc., see the signal. Sorry if I wasn't clear on that. Enjoy! Lyle KK7P ___ 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: printing new manual
Sorry, buy why print it and kill trees? Why not just read in PDF and have
all that search capability too?
On 10/10/07 19:58, Ken N9VV [EMAIL PROTECTED] sent:
When Eric and Wayne release the wonderful new manual, will
you fellas please check with your local Kinko or
Office{Depot,Max} to see what it will cost to print it. I
have had quotes at $0.87/page in color and $0.50 in b/w.
That seems outrageous to me for a pdf document that you
bring to them on a memory stick.
---
I see that TAPR is offering the 168 page DCC Conference
document from http://www.lulu.com/en/products/ a
print-on-demand printing house. The price comes out to about
$25 but that seems to be very realistic for such a large
document. Would that possibly be an alternative to local
printing?
--
Sometimes I think we're alone in the universe, and sometimes I think
we're not. In either case, the idea is quite staggering.
-Arthur C Clarke, science fiction writer (1917- )
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[Elecraft] K3 Owner's Manual Posted
We've just posted theK3 Owner's manual to the K3 web page. See: http://www.elecraft.com/news.htm Enjoy! 73, Eric WA6HHQ ___ 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: KPA 100 pA issues,,,, puzzle...
Bill, Those symptoms sound familiar. I believe your KPA100 is oscillating at about 600 kHz. During the KPA100UPKT installation, did you change C31? There is an omission in the kit contents and the instructions right now which is trying to be corrected, but has not yet been completed. If you did not change C31 to a 0.22 uf capacitor, send a note to [EMAIL PROTECTED] and ask for one - the part number is E530295. Installation of the larger value for C31 will stop an oscillation at about 600 kHz (what frequency does the LP100 say is being transmitted). Note for others following this thread - the C31 change is *only* to be installed if the KPA100UPKT has been installed. 73, Don W3FPR Bill NY9H wrote: initial symptom was the autotuner would lock up/ reset the radio when tuning ...only on 40 , so I ordered the PA upgrade kit... when running the k2 @ qrp .. the swr reads correct and the PA is basically out of the circuit,.1.3 this is on 40. both on the set AND THE LP-100 now my LP100 is giving me a big clue what is going bad in my K2/100 PA. The problem is that I still don't understand enough of the basics../.. but when i dial up over 15 watts the swr reads 9.98 !!! but when i go back to under 15 watts the swr reads correctly...(LP-100) I know something is wacky in the kpa100 and i thought it was in the tuner... I have just completed the last of the upgrades to the KPA , but it appears to not have helped... oN TYHE k2/100 the swr seems to read double when on the PA vs the qrp,on the other bands , but 40 has bigger /*issues...such as locking up the autotuner... .which was the original sympton... ___ 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] K3 Schematics Posted
We've also just posted the K3 schematics to the K3 web page. See: http://www.elecraft.com/news.htm 73, Eric WA6HHQ ___ 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] K3 Owner's Manual Posted
Rather quiet on here right now - I wonder what everybody is doing? Hi On 11/10/07 00:18, Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] sent: We've just posted theK3 Owner's manual to the K3 web page. See: http://www.elecraft.com/news.htm Enjoy! 73, Eric WA6HHQ -- The soul is the same in all living creatures, although the body is different. -Hippocrates, physician (460-c.377 BCE) ___ 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] K3 Manual Question
In a message dated 10/10/07 5:50:41 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: What's wrong with doing it that way? There must be something wrong with it, because nobody in the ham world is doing it. Would most hams not like such a manual scheme? I sure would. In my work, things like standard plans, timetables and rule books are often done that way. When you have a big book that is frequently revised, and is in the hands of many people, it makes sense, because the cost of sending everyone a complete new book is much more than the cost of keeping page-by-page revision info. The big downside is that there must be absolute discipline in keeping the books up to-date. An old timetable can be worse than none at all. But in the amateur radio market, the revisions are few and the numbers small. Keeping track of updates is a lot of administrative work. It seems to me that having the manuals and revisions on the website is the best way to go. That way, anyone can see them. 73 de Jim, N2EY ** See what's new at http://www.aol.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] K3 Manual Question
Craig, we're really not that far apart here. It's prohibitively expensive and adds significant complications for the manufacturer, who has to maintain revision information per-page. Maintaining revision information for updated pages is trivial. Adobe FrameMaker makes this easy even without using XML tags. I won't bore everyone with inside-baseball details here, but believe me, it's a no-brainer, takes almost no time, and costs nothing extra. The tools are there. (No, not MS Word. Anybody who is still trying to use MS Word for large, evolving sets of complex technical documents either isn't really serious about technical documentation to begin with, or is, um, alarmingly underinformed. :-) The solution of offering a downloadable PDF of the manual is simpler for the manufacturer . . . Users could print the manual if they wanted, but otherwise I wouldn't have killed as many trees, Al Gore would be happy, and we'd save $10/unit sold over distributing a seldom-read manual. I agree! It does cost less not to publish paper manuals. As a tech writer for a major Silicon Valley semiconductor company, I put out thousands of pages of PDF documents a year that are never printed on paper. What I'm saying is not that manuals necessarily have to be printed on paper by the manufacturer, but rather that adopting a different documentation paradigm (a) would cost no more than the current process, and (b) might well be more attractive to many end users than the current process. I'm suggesting that it makes sense to structure ham radio manuals more like military radio manuals, and adopt a similar upgrading scheme. Whether you do this on paper, on a CD-ROM, as downloadable files, or as a combination of all of these doesn't really matter. Documentation downloads from the website and CD-ROMs shipped with the radio would be free, but CD-ROMs ordered separately from the radio would be charged for, as would any paper documentation (whole manuals and updates) printed and shipped by the manufacturer. It could be preprinted and inventoried or, since it doesn't have to be bound, produced in-house as ordered. The saved cost of binding could be used to cover the additional cost of edge-reinforced punched stock, if desired. Most end users who want a paper manual would choose the option of printing it themselves on ordinary printer paper. If the manuals and updates were designed as I described in my previous post, they would lend themselves exceptionally well to home printing and loose-leaf binding. The user wouldn't have to print out a whole new manual every time there's an update. Those who care to could keep their manuals up-to-date elegantly and with a minimum of fuss; those who don't care to would never be bothered. Bill / W5WVO ___ 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] K3 Schematics Posted
How can I find these? None of the links on the associated page look to me remotely as if they might relate to schematics. Thanks Martin, HS0ZED Eric Swartz - WA6HHQ, Elecraft wrote: We've also just posted the K3 schematics to the K3 web page. See: http://www.elecraft.com/news.htm 73, Eric WA6HHQ ___ 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] K3 Owner's Manual Posted
Got it! Printed, hole punched, and hot off the press. I promise - no nagging questions up front, they will all be saved for after the K3 comes. !!! Thanks guys! Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com Wed Oct 10 19:18:27 EDT 2007 We've just posted theK3 Owner's manual to the K3 web page. See: http://www.elecraft.com/news.htm Enjoy! 73, Eric WA6HHQ ___ 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] K3 Schematics not found!
Does anyone know where they are? Also the new Operator's Manual doesn't seem to be in the usual spot: elecraft.com/k3/... Am I missing something? Thanks, Michael N2ZDB ** See what's new at http://www.aol.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] Re: KPA 100 pA issues,,,, puzzle...
876 Khz.. and scott has the part on it's way... tnx Don bill At 06:21 PM 10/10/2007, you wrote: Bill, Those symptoms sound familiar. I believe your KPA100 is oscillating at about 600 kHz. During the KPA100UPKT installation, did you change C31? There is an omission in the kit contents and the instructions right now which is trying to be corrected, but has not yet been completed. If you did not change C31 to a 0.22 uf capacitor, send a note to [EMAIL PROTECTED] and ask for one - the part number is E530295. Installation of the larger value for C31 will stop an oscillation at about 600 kHz (what frequency does the LP100 say is being transmitted). Note for others following this thread - the C31 change is *only* to be installed if the KPA100UPKT has been installed. 73, Don W3FPR Bill NY9H wrote: initial symptom was the autotuner would lock up/ reset the radio when tuning ...only on 40 , so I ordered the PA upgrade kit... when running the k2 @ qrp .. the swr reads correct and the PA is basically out of the circuit,.1.3 this is on 40. both on the set AND THE LP-100 now my LP100 is giving me a big clue what is going bad in my K2/100 PA. The problem is that I still don't understand enough of the basics../.. but when i dial up over 15 watts the swr reads 9.98 !!! but when i go back to under 15 watts the swr reads correctly...(LP-100) I know something is wacky in the kpa100 and i thought it was in the tuner... I have just completed the last of the upgrades to the KPA , but it appears to not have helped... oN TYHE k2/100 the swr seems to read double when on the PA vs the qrp,on the other bands , but 40 has bigger /*issues...such as locking up the autotuner... .which was the original sympton... ___ 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] K3 manuals
Just finished a quick walk through the owner's manual and the schematics. Wow, this definitely is NOT your father's rig :-) Tremendous piece of work by all involved. More eager than ever to get one of my own. 73, Bob N6WG ___ 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] K3 and MARS
Hi all, Very little to date has been said about the K3 and MARS. (I checked the archives) 1) When will this be implemented? 2) Will I need the KBPF3 module for MARS work or are the frequencies close enough to the ham bands? I have been quiet on the list about the K3 until now, but I am considering ordering mine soon. I don't have MARS capabiity now, and don't want to join MARS until I have a rig that will do it. 72, Steve Pituch, W2MY K2 #402 still going gangbusters ___ 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: K3 manuals
Thanks, Bob, on behalf of all of the authors and reviewers. We'll be diligently updating the manuals to keep them as accurate as possible. In some cases the owner's manual is actually a bit ahead of released firmware -- this is noted in the owner's manual errata. The Schematics package is in lieu of the Service Manual, which isn't complete yet. Meanwhile, the owner's manual has a troubleshooting section that should cover most issues anyone would encounter. 73, Wayne N6KR Robert Tellefsen wrote: Just finished a quick walk through the owner's manual and the schematics. Wow, this definitely is NOT your father's rig :-) Tremendous piece of work by all involved. More eager than ever to get one of my own. --- 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] reduced-size K3 Owner's Manual now available
Hi all, There's a slimmer (1.4 MB) version of the Owner's Manual now available at: http://www.elecraft.com/manual/K3%20Owners%20Manual%20A%20small.pdf The graphics are sightly sharper in the larger (5 MB) version. 73, Wayne N6KR --- 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] [K3] Manual etc
So many questions I want to ask, does this mean it does that etc - but I'll wait until I get the kit and its built. Being in the UK, I would guess there will be quite a few out in the US before mine arrives - np with that. Did I ever say just how pleased I am that Elecraft sell direct to the UK and don't mark up your products - like by changing the $ into a £ -- God gives every bird his worm, but he does not throw it into the nest. -Swedish proverb ___ 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] K3 Schematics Posted
Sorry! Its there now. :-) Eric AB7R wrote: Eric... I don't see the schematic posted with the rest of the docs. Greg -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Wednesday, October 10, 2007 4:26 PM To: Elecraft List Subject: [Elecraft] K3 Schematics Posted We've also just posted the K3 schematics to the K3 web page. See: http://www.elecraft.com/news.htm ___ 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] K3's EQ Rececive Feature - Wow!
Lee, One of the plans is to be able to save settings using the K3FW download utility. This will not be immediately available but it is one of the planned feature updates. 73 Greg AB7R K#0009 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Lee Buller Sent: Wednesday, October 10, 2007 5:31 PM To: Elecraft Reflector Subject: [Elecraft] K3's EQ Rececive Feature - Wow! After reading the manual, I fell in love with the RX EQ feature. As I have grown older, my hearing has lost the high end range. I am really looking forward to that feature...which is neat. I was about to drop some dollars on something that MFJ had and I am not going to do that now. Question. Can you put EQ set ups in memory for both TX EQ and RX EQ? The reason that I ask that...is that when we multi-op...different strokes for different operators. Or, is there a way in firmware to save different EQ setups? Just asking... Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.7/1062 - Release Date: 10/10/2007 5:11 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.7/1062 - Release Date: 10/10/2007 5:11 PM ___ 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] K3s Start Shipping!
I assume the people who were sent their K3's got an email and payment info before the K3's were sent, so there is no reason for me to camp out by the mail box till I get some sort of communication... Not that I would not mind it just showing up tomorrow... Brett N2DTS ___ 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] K3 Manual
Eric and Wayne Thanks to my HP P2015d Laser printer with duplexer I now have a printed and bound copy of the K3 Manual and Schematics. I even printed a color copy of the front page on my HP Photosmart 7350 for the insert on the front of the binder... Very nicely done manual and only took about 20 minutes to print it. Jim Younce K4ZM K2 SN:18 K2 Field Tester ___ 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] K3 Unanswered Questons
In my admittedly quick scan of the manual I still have some unanswered questions. 1. What step sizes are available for: DSP BW (50?) PBT CW Pitch 2. What is the range of AGC SLP? Wasn't there some discussion of a mode emulating the K2 AGC (i.e. piecewise linear approximation)? 3. What is the range of the Context filter? Is the 20 dB attenuation adjustable? I realize most of these could be answered if I had my K3 in front of me but maybe someone who does can help. 73, Bill W4ZV ___ 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: Can the KPA100 and KAT100 Live in the same EC2 box?
Hi Guys, I have got my K2 on the air, but in these days of low propagation, maybe my signal needs a little extra punch. So my question is, will a KPA100 and a KAT100 live in the same EC2 box without requiring me to make additional holes in panels? Many thanks Kevin VK3DAP / ZL2DAP ___ 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] K3 Unanswered Questons
Bill Tippett wrote: 1. What step sizes are available for: DSP BW (50?) PBT CW Pitch All of these are presently 50 Hz. There was talk of making finer steps available; they might do it in the future. 2. What is the range of AGC SLP? Wasn't there some discussion of a mode emulating the K2 AGC (i.e. piecewise linear approximation)? The range is 0-15. 15 is very flat; 0 reduces AGC action. I think I like to use a lowish value in everyday operation, but I increase it in a contest. I used 10 for the CQP. 3. What is the range of the Context filter? Is the 20 dB attenuation adjustable? It's presently not adjustable. It's a work in progress; I know Wayne will be improving it. -- 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] Re: K3 Unanswered Questons
Bill Tippett wrote: In my admittedly quick scan of the manual I still have some unanswered questions. 1. What step sizes are available for: DSP BW (50?) Yes. PBT Same. CW Pitch Same. We may change these in the future. 2. What is the range of AGC SLP? Wasn't there some discussion of a mode emulating the K2 AGC (i.e. piecewise linear approximation)? The parameter range is 0-15, which translates to (qualitatively) not flat at all to very flat. I'm sure I could do a better job of explaining this in the Owner's Manual someday. 3. What is the range of the Context filter? At present, 0.6 to 2.8 kHz. Is the 20 dB attenuation adjustable? Not at present. We'll increase the range of these and other settings as time permits, and when warranted based on user feedback. 73, Wayne N6KR --- 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] Comparison: K3 and SDR 5000A
... The sample-in/sample-out may work at steady state, but if you use an FIR filter, it still takes a number of samples and time to fill the filter pipeline, as well as empty it... Exactly. As I stated, you can't get away from the delay in the filter. I was describing *additional* delay beyond that of the filter. But the architectures are different, and can't be compared in that way. In each case, the sytstem requres delay to capture the data. In the case of the 5000A, once the data is collected, then the filter (which is an FFT) is free to run all its calculations at the full bore speed of the processor unconstrained by the sampling rate. In the K3, the filter is a serially stepping FIR filter very much constrained in its calculation speed by the sampling rate so must wait between samples for the next input point to arrive before it can pop out a new output point calculation. In the 5000A the main delay is up in front of the filter, as you point out, but in the K3 the main delay is in the filter itself caused by the need to push all that data through the FIR filter at the sample input rate. If the system is sampling at 48 kHz, a sample-by-sample architecture will have 20.8 *micro*seconds delay before the subsequent filters, etc., see the signal. Correct, but it will also take 10.6 *milli* seconds to push that data through a 512 tap FIR filter to detect the edge of a CW signal. If it is block based, and the block size is 1024 samples, then at the same 48 kHz sample rate you'd have 22 *milli*seconds of delay before the subsequent filters, etc., see the signal. Actually a more realistic sample rate for the 5000A is 192 kHz. At that rate, you have 5.3 milliseconds of delay, not 22. Looks like we are in the same ballpark after all. Enjoy! I am. Thanks for exercising my grey matter. 73, Rich W1EZ ___ 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: Can the KPA100 and KAT100 Live in the same EC2 box?
Kevin, The KAT100-2 has all the 'hooks' to mount the KPA100 in the same EC-2 enclosure. If you already have a KAT100-1, there is a conversion kit to add the missing pieces, but you will have to order the EC2 enclosure separately. This is a 'no holes' solution. 73, Don W3FPR KBG Luxford wrote: Hi Guys, I have got my K2 on the air, but in these days of low propagation, maybe my signal needs a little extra punch. So my question is, will a KPA100 and a KAT100 live in the same EC2 box without requiring me to make additional holes in panels? ___ 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] k3 external freq ref
It is not clear to me from the schematic or the owner manual whether this is for a 10 MHz or 49 MHz input signal .. the faq indicates that it is 10 Mhz (and presumably converted up to 49 MHz ) but on cursory perusal of the documentation I cannot see how this is done. I was hoping to use a gps disciplined xo with a 10 Mhz output as the external reference ... ___ 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] k3 external freq ref
Stephen, This option will be for use with a 10 MHz reference as you suggest. I'm sure many who do this will use a GPS as you plan to. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of stephen pearce Sent: Wednesday, October 10, 2007 9:02 PM To: elecraft@mailman.qth.net Subject: [Elecraft] k3 external freq ref It is not clear to me from the schematic or the owner manual whether this is for a 10 MHz or 49 MHz input signal .. the faq indicates that it is 10 Mhz (and presumably converted up to 49 MHz ) but on cursory perusal of the documentation I cannot see how this is done. I was hoping to use a gps disciplined xo with a 10 Mhz output as the external reference ... ___ 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 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.7/1062 - Release Date: 10/10/2007 5:11 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.7/1062 - Release Date: 10/10/2007 5:11 PM ___ 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] K3 CW to Data and ES for ampersand?
On Oct 10, 2007, at 9:48 PM, Leigh L Klotz, Jr. wrote: On p.31, the K3 manual says that the CW abbreviation ES isn't used in data modes and might lead to confusion. Why not recognize it in CW-to-Data and send an ampersand? We'll put this on the wish list, Leigh. Good idea. 73, Wayne N6KR --- http://www.elecraft.com
