[Elecraft] 2T Gen problem
Hi, I am in the final alignment and tests of my K2/SSB/PA100, which seems to be going very well, . but I am facing my first real problem with an Elecraft kit, the 2 T GEN. This is rather frustrating, since there are only a few components, no toroid, etc. The 700 Hz generator works and produces a max 150 mVolt peak signal, but the 1.900 Hz generator does not work. I noticed that Base of 2N3904-Q1 (1.900 Hz) shows 0 V, while Base of 2N3904-Q3 (700 Hz) shows 2,1 mV. With a 8.9 Volts Vcc, Collector Q1 shows 8,1 Volts while Collector Q3 shows 6.7 Volts. Drains Q2 and Q4 (2N7000) show both 4.4 V (= Vcc/2). The voltages of pins 1,2,3,5,6,7 of U1 (LMC6482) are all 4.4 Volts. Replacing Q1 with an available spare didn't help and didn't change the voltages. With the scope, I get a 689 Hz sinusoidal signal on U1 pin 7 (570 mV peak), but nothing on U1 - pin 1. There is a saw teeth signal on collector Q3, nothing on collector Q1. I have of course inspected carefully the soldering and the component placement. Thanks for your suggestions, Raymond METZGER F4FNT ___ 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 Filter IMD/BDR specs
W4ZV sed: [snip] Elecraft promised to post full IMD/BDR measurements for all filters but has not done so thus far. [2nd snip] I commend Elecraft for posting full data in advance but sure wish they would get on with it so I can finalize my order [end snip] I heartily agree What's the hangup with these measurements? Time keeps on slippin, slippin, slippin...into the future Steve Miller Band de Doug KR2Q ___ 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] ARRL changes RX measurement methodology
In the Oct 2007 product review section (on line version for Members Only), the ARRL explains their newest methodology for RX measurements. While improving methodologies are always welcome, I sure wish they would also provide info using the old method measurements, so we can compare apples to apples. With constantly changing methods, it's just tough to make easy, side-by-side comparisons. Oh wellsomething new to learn. de Doug KR2Q ___ 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 Filter IMD/BDR specs
I either want a K3 or I do not. If I do (and I do), I feel if the rig is good, the filters are good. So, the exact measurements of anything in the radio are beside the point... I know I want the radio and I want filters for narrow SSB and general CW, so I add extra 1.8 and 500. DONE (Note: I did this without worrying about data). Now, if I am so worried about the exact data, then likely I should choose another brand of radio, or simply quiet down until my exacting soul can be satisfied LATER. 73, Charles Harpole [EMAIL PROTECTED] Charles Harpole [EMAIL PROTECTED] _ Discover sweet stuff waiting for you at the Messenger Cafe. Claim your treat today! http://www.cafemessenger.com/info/info_sweetstuff.html?ocid=TXT_TAGHM_SeptHMtagline2 ___ 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 Filter IMD/BDR specs
K4VUD: So, the exact measurements of anything in the radio are beside the point... I know I want the radio and I want filters for narrow SSB and general CW, so I add extra 1.8 and 500. DONE (Note: I did this without worrying about data). Lewis Carroll (1832-1898): If you don't know where you are going, any road will get you there. Rob Sherwood (2004 measurements on Ten-Tec Orion): Filter 2 kHz IMD 500 72 dB Optional Ten-Tec #217 100092 dB Stock Ten-Tec 600 98 dB Optional Inrad #762 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
Re: [Elecraft] Use of Heathkit SB200 amp
In a message dated 9/12/07 11:12:05 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: the Heathkit SB-200 has several modifications that can be made to it, one of which is the reduction of drive power to excite it. What is modified to do this? Does anybody have any idea what the lowest power required to excite an SB-200 amp is? I presume you meant what the lowest power required to excite an SB-200 amp to full rated output is The SB-200 uses a pair of 572B triodes in grounded-grid. The data sheets list the 572B as needing 50 watts of drive in that service, so a pair will need 100 watts of RF to drive them. Without mods, it is around 100 watts, but I use to have one with the reduced drive mods, and I drove it with 30 to 50 watts for around 300 watts out. The tube ratings (for a pair) say that 100 W of drive will give 600 W output, so 50 W of drive would give 300 W output. I don't see what could be modified to reduce the drive requirement for full output, except perhaps changing to grounded-cathode operation instead of grounded grid. But such a mod would be extensive, requiring neutralization and other changes. I never tried testing the lower end with that mod. Though. Bottom line is: if an SB-200 had the reduced drive mod, could a QRP K2 at 10 to 15 watts with an amp key interface safely/adequately drive an SB-200 to say, 50 to 60 watts out? Since the SB-200 is a linear amplifier, I don't see why not. Of course it's using a sledgehammer to drive a 3d finishing nail The problem is, how do you tune up the SB-200 with such low drive power? --- I'm curious to know what is changed by the low drive mod for the SB-200. Thanks 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] Time to Move On
Sounds as if he just likes to build stuff, not so much actually use it. Bill W5WVO Ken Kopp wrote: Not quite sure what you're trying to say ... Move on ... to what? I don't know of a kit that's anywhere close to being an alternative to the K3 ... or the K2, for that matter. 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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 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] Strange Problem
Fellow Elecrafters: I have had a strange problem with my K2, that I've both discussed previously on the list and discussed with Scott at Elecraft. The problem was that the rotation of the tuning knob would occasionally feel rough on my fingertips as it turned, and I heard what I thought were clicking sounds whenever I got the rough feeling. Jim, KA1SU, figured out what was really gong on. The little ring that holds the shaft of the encoder in position in the encoder body was catching on the fibers of the felt washer behind the tuning knob. The clicks were the sound of felt fibers ripping out of the washer, and the roughness of feel was the abrupt jerk of the tuning knob as the fiber pulled free. The felt washer was torn up pretty badly. How's that for bizarre? 73, Steve Kercel AA4AK ___ 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] 2T Gen problem
Raymond, I believe the oscillator should oscillate even with Q1 removed. Look carefully at the feedback loop around U1A particularly C2, C4, R1, R2 and R6. Be certain the jumper blocks are in the 'T' position. The most likely problem is soldering or a misplaced component. Use a magnifier to check for any tiny slivers of solder between adjacent pins. 73 and good luck with it, Don W3FPR Raymond METZGER wrote: Hi, I am in the final alignment and tests of my K2/SSB/PA100, which seems to be going very well, . but I am facing my first real problem with an Elecraft kit, the 2 T GEN. This is rather frustrating, since there are only a few components, no toroid, etc. The 700 Hz generator works and produces a max 150 mVolt peak signal, but the 1.900 Hz generator does not work. I noticed that Base of 2N3904-Q1 (1.900 Hz) shows 0 V, while Base of 2N3904-Q3 (700 Hz) shows 2,1 mV. With a 8.9 Volts Vcc, Collector Q1 shows 8,1 Volts while Collector Q3 shows 6.7 Volts. Drains Q2 and Q4 (2N7000) show both 4.4 V (= Vcc/2). The voltages of pins 1,2,3,5,6,7 of U1 (LMC6482) are all 4.4 Volts. Replacing Q1 with an available spare didn't help and didn't change the voltages. ___ 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 Filter IMD/BDR specs
If I do (and I do), I feel if the rig is good, the filters are good. That's the sad part - how does one get the feeling just by looking at a pretty picture, assembly manual with no schematics and a bunch of beta testers who are probably biased to the elecraft products anyway? My guess is that they (elecraft) will wait until enough orders are placed before they release the numbers :-PPP (it's a joke so relax, I am not seeking to be excommunicated from the Church of Elecraft :-) My personal decision is to start even considering the K3 and eventually place an order AFTER I see the schematics (when btw?), real performance numbers as result of 3rd party lab test and reviews from unbiased users. That's how I based my decision to order my K2/100 (I am happy with it btw). This on the other hand is not a K2. What also bothered me is that Elecraft promised the radio too early (probably because of Dayton) and now is chasing deadlines due to inpatient customers (chasing deadlines' more often than not equals cutting corners). I've seen good and bad radios coming from one and the same company (Yaesu, Icom, Ten-Tec, you name it) so I wouldn’t jump and dump few thousands dollars into a black box, just because everyone says it is going to great. If you leave the guys (Wayne and Eric) alone to work I think it would be for the best. They have as much interest in delivering the radio as the ones who are waiting for it. My 2 cents. AE1Z ___ 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] Crimping Tool
Hi Gang, I am looking for a crimping tool for putting Pl-259, BNC and SMA connectors onto RG-58, RG-141 maybe even 316 type coax. It will primarily be used for making test cables for my workbench right now. However, it would be nice if it did RG-8 as well. I realize I can just Google crimpers and get a million choices. I am looking for first hand experience here. I don't mind paying a few extra bucks for quality. What have you guys found to be the best for a reasonable price? Thanks in advance, Bob K6GGO ___ 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] Time to Move On
Are you serious? Your choice obviously, but just because Elecraft produce an assembly doesn't seem like a substantial reason to sell an existing product you built. Or to move away from a company that will continue to produce kits (I'm sure). There have been many discussions about why the K3 is a non-solder assemble kit and not a complete solder kit, I wont go down that route. On 13/9/07 01:35, nr5a [EMAIL PROTECTED] sent: I guess its time for me to move on. The K3 was such a disapointing let down that I sold my K2. I'm sorry but prebuilt modules does not a kit make. Jerry - NR5A - south Dakota ___ 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 -- We are not the same persons this year as last; nor are those we love. It is a happy chance if we, changing, continue to love a changed person. -William Somerset Maugham, writer (1874-1965) ___ 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: [QRP-L] Crimping Tool
- Original Message - From: Bob Fish [EMAIL PROTECTED] To: qrp-l.org [EMAIL PROTECTED]; [EMAIL PROTECTED]; elecraft@mailman.qth.net; [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Thursday, September 13, 2007 5:01 PM Subject: [QRP-L] Crimping Tool Hi Gang, I am looking for a crimping tool for putting Pl-259, BNC and SMA connectors onto RG-58, RG-141 maybe even 316 type coax. It will primarily be used for making test cables for my workbench right now. However, it would be nice if it did RG-8 as well. I realize I can just Google crimpers and get a million choices. I am looking for first hand experience here. I don't mind paying a few extra bucks for quality. What have you guys found to be the best for a reasonable price? We had lots of problems with crimped BNC Ethernet connectors where I once worked, they were always going intermittent. Leon __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
Re: [Elecraft] Crimping Tool
Bob Fish wrote: Hi Gang, I am looking for a crimping tool for putting Pl-259, BNC and SMA connectors onto RG-58, RG-141 maybe even 316 type coax. It will primarily be used for making test cables for my workbench right now. However, it would be nice if it did RG-8 as well. I realize I can just Google crimpers and get a million choices. I am looking for first hand experience here. I don't mind paying a few extra bucks for quality. What have you guys found to be the best for a reasonable price? Thanks in advance, Bob: I've been pleased with the interchangeable jaw ratchet tool from RF Parts. Part No. RFA-4005-20. http://www.rfparts.com/coax_accessories.html is their page. A tool plus a reasonable set of dies will set you back about $100 or so. This same tool can be found from other suppliers, such as RF Connection, I believe. http://www.therfc.com/tooling.htm. Jack K8ZOA ___ 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: [qrp-l.org] Crimping Tool
One crimp tool often only does one sze connector and one size cable so you may need a whole box full. Here, a single good qualoity crimp tool might easily be 200-300 USD each so you may be looking at a significant investment. I only use solder connectors. Bob Fish wrote: Hi Gang, I am looking for a crimping tool for putting Pl-259, BNC and SMA connectors onto RG-58, RG-141 maybe even 316 type coax. It will primarily be used for making test cables for my workbench right now. However, it would be nice if it did RG-8 as well. I realize I can just Google crimpers and get a million choices. I am looking for first hand experience here. I don't mind paying a few extra bucks for quality. What have you guys found to be the best for a reasonable price? Thanks in advance, Bob K6GGO ___ http://mail.qrp-l.org/mailman/listinfo/qrp-l_qrp-l.org -- Nigel A. Gunn. 59 Beadlemead, Milton Keynes, MK6 4HF, England. Tel +44 (0)1908 604004 mobile +44 (0)7951079089 e-mail [EMAIL PROTECTED] www http://www.ngunn.net Amateur radio stations G8IFF, KC8NHF Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385, Dayton ARA #2128, AMSAT-NA LM-1691, MKARS, RAYNET ___ http://mail.qrp-l.org/mailman/listinfo/qrp-l_qrp-l.org
[Elecraft] K2 PLL Temperature Compensation Adjustment
I'm trying without success to optimize resistor RA on the K2 thermistor board. I should first say that the temperature compensation with the provided 33K resistor is quite good--I just wanted to optimize it. With RA at 33K, I'm measuring drift on the 40 and 80 meter bands after transmitting to be about 40 Hz. I'm measuring this by zero beating my K2 warmed up on receive only against a standard, then transmitting continuously at 20 W for about 8 min. (resulting in a heat sink that's quite warm), then zeroing again against the standard. For example, the measurement before transmitting (as displayed on the K2 readout) might be 4000.00, and the measurement after transmitting and zero beating again might be 3999.96. I expected that by adjusting the value of RA between the limits of 15K and 56K noted in the K2 Temperature-Compensated PLL Reference Upgrade instructions, I could move from a point of under compensation to over compensation. For example, given the same test conditions, one extreme might be 4000.00 from receive only to 3999.90 after transmit, and the other extreme might be 4000.00 to 4000.10. Someplace between would be optimum compensation with almost no change during warm up due to transmitting. I realize, of course, my experiment isn't precisely repeatable, and there will always be some random drift, and that different components will affect the drift at different points in the cycle. However, I still expected to find that changing RA made a noticeable difference between the extremes, and I'm not seeing that. At neither extreme can I get the zero beat display on the K2 to be higher than it was before transmitting. At most, the extreme resistance values seem to change the outcome about 20 Hz. I am running CAL PLL after each change in RA. Squirting component cooler on the thermistor does cause a rapid and extreme change in frequency, so it appears the thermistor circuit is at least doing something. Is my experience typical? Might there be something wrong in my circuit? Would changing values other than RA help? Thanks. Dick, K0KK ___ 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] Time to Move On
I'm having a hard time wrapping my brain around this one. I have a license so that I can OPERATE a ham radio and by all indications the K3 looks like it will be a wonderful rig to operate. Kit or not, it will be great. My K2 was a kit. I spent a month or so building it. I've spent the last 18 months operating it. Beauty of operation pays dividends long after the joy of building has ended. I guess if you're interest is solely kit building, then I wonder why even keep the rig in the first place. Build it, check it out, sell it, buy another. Like I say, I'm having a hard time wrapping my brain around this one. To each his own I suppose. 73 Jerry all. - Keith N1AS - - K2 5411.ssb.100 - -Original Message- I guess its time for me to move on. The K3 was such a disapointing let down that I sold my K2. I'm sorry but prebuilt modules does not a kit make. Jerry - NR5A - south Dakota ___ 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 Filter IMD/BDR specs
Charles Harpole wrote: So, the exact measurements of anything in the radio are beside the point... I know I want the radio and I want filters for narrow SSB and general CW, so I add extra 1.8 and 500. In that case you may have wasted your money as you haven't given one of the valid reasons for buying the optional filters. They are roofing filters, not primary selectivity filters. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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 Filter IMD/BDR specs
On Sep 13, 2007, at 10:04 AM, David Woolley wrote: Charles Harpole wrote: So, the exact measurements of anything in the radio are beside the point... I know I want the radio and I want filters for narrow SSB and general CW, so I add extra 1.8 and 500. In that case you may have wasted your money as you haven't given one of the valid reasons for buying the optional filters. They are roofing filters, not primary selectivity filters. They are both. You can make the DSP bandwidth narrower the selected crystal filter, but the crystal filter establishes the 1st IF bandwidth, which is critical to achieving high close-in dynamic range. We're working on the final numbers (which involves testing several radios with each filter to make sure they're consistent). Preview: they will be outstanding :) 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] Time to Move On
-Original Message- From: Darwin, Keith [EMAIL PROTECTED] My K2 was a kit. I spent a month or so building it. I've spent the last 18 months operating it. Beauty of operation pays dividends long after the joy of building has ended. Like I say, I'm having a hard time wrapping my brain around this one. I think it has to do with how much of oneself goes into the process. At one end of the spectrum would be a kit that was a box of parts, a schematic, and maybe a layout drawing or two. Lots of soldering, coil-winding, etc. Maybe even require you to drill some holes. On the other end would be a kit that involves mounting a couple of components and nothing else. From what I can see, the K3 requires a bit more assembly than building a PC. No soldering - same as a PC. And for the same reasons. It would have been great if the K3 could have been built with all through-hole components on conventional boards that we could stuff'n'solder, just like the K2. I think if that were practical, it would have been done. -- None of this is really new, though. Heathkit's famous SB line used prepackaged crystal filters, prepackaged LMOs in a do not open box, and a preadjusted first-IF bandpass transformer. And that was over 40 years ago. Even earlier, the Heath RX-1 Mohawk receiver came with a preassembled, prealigned front-end module that you just bolted onto the chassis and hooked up. Tuning cap coils, bandswitch, several tubes, etc., all done for you. 73 de Jim, N2EY (didn't we have this discussion before?) 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] K3 Beta Question
Suppose the K3 is set to any frequency, 2.8 khz USB and there is an S9 carrier at that frequency. You press the auto notch. Does the S-Meter still register S9? You turn off the auto-notch and remove the carrier with the manual notch. Does the S-Meter still register S9? Anyone? ___ 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 Beta Question
Don Rasmussen wrote: Suppose the K3 is set to any frequency, 2.8 khz USB and there is an S9 carrier at that frequency. You press the auto notch. Does the S-Meter still register S9? You turn off the auto-notch and remove the carrier with the manual notch. Does the S-Meter still register S9? Anyone? This was asked a while ago. IIRC you will be able to select which you want in the menu. Not sure if this will be available from release or whether it is in the list to be implemented. Ian -- Ian J Maude G0VGS SysOp GB7MBC DX Cluster Member of RSGB, ARRL, GQRP K2 #4044 | 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
[Elecraft] K3 Filter IMD numbers
Here you go! These are recent measurements from our lab. Filter20kHz 10kHz 5kHz 2kHz 200 Hz, 5 pole100+ 100+ 100+ 95 250 Hz, 8 pole100+ 100+ 100+ 95 400 Hz, 8 pole100+ 100+ 100+ 95 500 Hz, 5 pole100+ 100+ 100+ 94 1 kHz, 8 pole 100+ 100+ 10094 2.7 kHz, 5 pole 100+ 98 92n/a 2.8 kHz, 8 pole 100+ 100 93n/a These are typical numbers and may vary a couple of dB from radio to radio or filter to filter. 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] Re: K3 Filter IMD numbers
OMG! I died and went to heaven!! Thanks a lot EricOUTSTANDING! de Doug KR2Q On 9/13/07, Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] wrote: Here you go! These are recent measurements from our lab. Filter20kHz 10kHz 5kHz 2kHz 200 Hz, 5 pole100+ 100+ 100+ 95 250 Hz, 8 pole100+ 100+ 100+ 95 400 Hz, 8 pole100+ 100+ 100+ 95 500 Hz, 5 pole100+ 100+ 100+ 94 1 kHz, 8 pole 100+ 100+ 10094 2.7 kHz, 5 pole 100+ 98 92n/a 2.8 kHz, 8 pole 100+ 100 93n/a These are typical numbers and may vary a couple of dB from radio to radio or filter to filter. 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: K3 Filter IMD numbers
On Thu, Sep 13, 2007 at 02:39:52PM -0400, DOUGLAS ZWIEBEL wrote: OMG! I died and went to heaven!! Now that we have that out of the way - I would offer that I am very happy thus far with the 400 hz CW filter. I have used it in 3 different contests and my almost daily 160 meter weak signal activity. I have lied to my DSP and told it that I am using a 500 Hz filter. The K3's father (Wayne) tells me this could be a bad thing - but I like the overall results. My next filter purchase? Probably the 6 KHz one - or perhaps 1 kHz. Tree N6TR [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: K3 Filter IMD numbers
We're being conservative, too, hence the + signs in listings like the one below. The average 5/10/20 kHz IMDDR3 from all the tests on narrow filters comes out to around 104 dB, and we've seen 2 kHz numbers as high as 98 dB. But Eric probably doesn't want me to mention that :) 500 Hz, 5 pole100+ 100+ 100+ 94 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 Filter IMD numbers
Thanks...I almost I have enough to finalize my order. Please fill in the blanks: Filter BW Shape Factor 200 250 370 2.1 400 435 2.1 500 100010631.6 1800 2700 280028881.6 *All data taken from 8-pole plots...nothing available for 5-poles filters or the 1.8 8-pole. 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] Re: SB-200
There's no swamping resistor in the SB-200, there's tuned inputs I used one with my K2-100 until very recently (since replaced with a Transworld solid state KW amp) and it does behave linearly. The only caveat is that you need to use an interface between keying line of the SB200 K2 ... no biggie.I can turn the power down to lower levels, and the amp still does it's thing, as a linear amp should! John K5MO ___ 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 Filter IMD numbers
I take it from the comments so far that these are pretty good. :) As someone who knows more about PHP than IMD, could you give us the for dummies version? As someone whose main interests will be QRP PSK31 and CW, not serious contesting, which if any of these narrower filters would I benefit from? Also, there doesn't seem to be a lot to choose between the 2.7kHz 5 pole and the 2.8kHz 8 pole filter. I'm assuming that the former is the standard filter - what benefit would actually be observed using the latter? -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Ham-Directory: www.ham-directory.com On 9/13/07, Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] wrote: Here you go! These are recent measurements from our lab. Filter20kHz 10kHz 5kHz 2kHz 200 Hz, 5 pole100+ 100+ 100+ 95 250 Hz, 8 pole100+ 100+ 100+ 95 400 Hz, 8 pole100+ 100+ 100+ 95 500 Hz, 5 pole100+ 100+ 100+ 94 1 kHz, 8 pole 100+ 100+ 10094 2.7 kHz, 5 pole 100+ 98 92n/a 2.8 kHz, 8 pole 100+ 100 93n/a These are typical numbers and may vary a couple of dB from radio to radio or filter to filter. ___ 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] How do I unsubscribe?
One method I use is to receive all mails from reflectors in a daily digest, all postings to the reflector will come in a single mail one or perhaps two times a day, starting with a summary of subjects first, and then all individual mails below. First I check the summary for something of interest for me, in this case the K1 or something else, this takes a few seconds to do. If there is nothing for me to read, just hit the delete button .. 73 / SM5KRI - Chris ons 2007-09-12 klockan 20:06 -0400 skrev [EMAIL PROTECTED]: RE: [Elecraft] How do I unsubscribe? -- Hamradio: SM5KRI Krister Eriksson e-mail: sm5kri (at) ssa.se My website: www.qrpadventures.net - read about SM5KRI/P and QRP Webmaster for www.sk5aa.se - Vasteras Radio Club, Vasteras, Sweden ___ 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 National Contest Journal
I just received my Sept/Oct issue of National Contest Journal. It has a very nice 5 plus page First Impressions review of the K3, by N6XI. John k7up K2's #2012/2223 K1# 637 ___ 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: K3 Filter IMD numbers
Then you had better send Elecraft your new address so that you get your K3;-) Gary, N7HTS K2 #6113 On Thu, 13 Sep 2007 14:39:52 -0400 DOUGLAS ZWIEBEL [EMAIL PROTECTED] wrote: OMG! I died and went to heaven!! Thanks a lot EricOUTSTANDING! de Doug KR2Q On 9/13/07, Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] wrote: Here you go! These are recent measurements from our lab. Filter20kHz 10kHz 5kHz 2kHz 200 Hz, 5 pole100+ 100+ 100+ 95 250 Hz, 8 pole100+ 100+ 100+ 95 400 Hz, 8 pole100+ 100+ 100+ 95 500 Hz, 5 pole100+ 100+ 100+ 94 1 kHz, 8 pole 100+ 100+ 10094 2.7 kHz, 5 pole 100+ 98 92n/a 2.8 kHz, 8 pole 100+ 100 93n/a These are typical numbers and may vary a couple of dB from radio to radio or filter to filter. 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
Re: [Elecraft] K3 Filter IMD numbers
Hi Bill, I've added the 1.8 kHz 8 pole filter plot to the web page. Its 6 dB b/w is 1.913 kHz and the shape factor is 1.5 We just measured the following in the lab: The 200 Hz 5 pole filter -6 dB b/w is 224 Hz (200 Hz at -3 dB). Its shape factor is 4.0. The 500 Hz 5 pole filter -6 dB b/w is 565 Hz (465 at -3 dB). Its shape factor is 3.1. The 2700 Hz 5 pole filter -6 dB b/w is 2.91 kHz (2.71 at - 3 dB). Its shape factor is 2.9. As one would expect, the shape factors of the 5 pole ladder filters are broader than the 8 pole filters. 73, Eric WA6HHQ - Bill Tippett wrote: Thanks...I almost I have enough to finalize my order. Please fill in the blanks: Filter BW Shape Factor 200 250 370 2.1 400 435 2.1 500 100010631.6 1800 2700 280028881.6 *All data taken from 8-pole plots...nothing available for 5-poles filters or the 1.8 8-pole. 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 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] ref assembly manual
ive tryed the last 2 nights to get it i cannot get the link to download page to work i just a blank screen chris g0wfh ___ 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 specs
We're four days from the target date for the first K3 delivery and performance numbers are being released. What could this mean? ;-) ___ 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 specs
On Thu, 13 Sep 2007, Don Rasmussen wrote: We're four days from the target date for the first K3 delivery and performance numbers are being released. What could this mean? ;-) That there really are K3s, that there are measurements and Santa Claus has gainful employment. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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] BL2 binocular core dimensions
Hi all, I've just ordered a couple of BL2 kits, one of which is to go into an enclosure without the PC board. Does anyone know the external dimensions of the cores so I can size a suitable box? Thanks in advance, Paul M1PAF ___ 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 specs
And we're still short several key parts, so we won't ship on the 17th. :-( I'm waiting for replies from several vendors and will post as soon as I have good information. I'm beating on them as hard as I can.. :-) 73, Eric WA6HHQ --- Thom LaCosta wrote: On Thu, 13 Sep 2007, Don Rasmussen wrote: We're four days from the target date for the first K3 delivery and performance numbers are being released. What could this mean? ;-) That there really are K3s, that there are measurements and Santa Claus has gainful employment. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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 specs
Oh well, it was fun dreaming the balloon had gone up, but I'm pretty sure even with the vendor delays, nobody's getting bored in Aptos! [Elecraft] K3 specs Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com Thu Sep 13 17:42:00 EDT 2007 And we're still short several key parts, so we won't ship on the 17th. :-( I'm waiting for replies from several vendors and will post as soon as I have good information. I'm beating on them as hard as I can.. :-) 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 Status
Bored? No, but getting more sleep is a nice goal! ;-) We're getting very, very, close. Its always these last minute delays that drive you (and us) crazy. 73, Eric WA6HHQ - Don Rasmussen wrote: Oh well, it was fun dreaming the balloon had gone up, but I'm pretty sure even with the vendor delays, nobody's getting bored in Aptos! [Elecraft] K3 specs Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com Thu Sep 13 17:42:00 EDT 2007 And we're still short several key parts, so we won't ship on the 17th. :-( I'm waiting for replies from several vendors and will post as soon as I have good information. I'm beating on them as hard as I can.. :-) ___ 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 Filter IMD numbers
Presumably, the 8 pole filter would have steeper skirts but a higher insertion loss than the 5 pole filter. Don't know how it will play out in the real world. I decided to wait on ordering roofing filters until more is known. Craig Buck k4ia Fredericksburg, Virginia USA ** 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] ref assembly manual
Chris, Are you trying the direct link? The file names may have changed when the 'web-res' and 'hi-res' manuals were introduced. Go the the Elecraft website - click on the link below the K3 picture and on the page that loads, right click on the link for either the Web-Res manual or the Hi-Res manual and select 'Save Link As' - that should put a copy of the .pdf file on your computer. 73, Don W3FPR chris gresswell wrote: ive tryed the last 2 nights to get it i cannot get the link to download page to work i just a blank screen chris g0wfh ___ 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 Filter Advice
WU7R: I didn't order any filters not knowing which ones to order. Since Elecraft has now posted the data I needed, here's what I'm probably going with: Main RX: 2.7k stock, 1.8k 8-pole, 500 Hz 5-pole Sub RX: 2.7k stock, 500 Hz 5-pole My reasoning is that the 1.8 will be useful both for contesting SSB and also SP CW. I like the 500 over the 400 because it is 130 Hz wider and the IMD performance is nearly identical. I might later decide to try a 1.0 if the 1.8 is not sufficient, but my guess is it will be OK. In Orion I used a 600 Hz 4-pole most of the time and then an 8-pole 1.8 kHz for contesting SSB and CW SP. The way these DSP rigs work, the effective bandwidth of a 1800 Hz filter on CW is actually more like 900 + the CW Pitch you select...so if you like a 400 Hz Pitch, the effective BW of an 1800 is actually more like 1300Hz (due to the fact that the DSP truncates the filter response below 0 Hz). Eventually I may order another K3 for SO2R with Main RX only and the same set of Main filters above. The reason I don't need the 1.8k for the Sub above is that I mainly plan use use it for diversity RX on CW (on 160 meters). 73, Bill W4ZV P.S. For most folks (non-contesters or low band DXers), the stock 2.7k filters are probably all you need. Remember that these filters are *only* for IMD/BDR issues with signals above about S9+30. Your final selectivity is still determined by the DSP filters with selectable BWs every 50 Hz. ___ 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 specs
I'm beating on them as hard as I can. Need any volunteers to help ??? ;-) ___ 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 PLL Temperature Compensation Adjustment
Dick, You did not mention that you ran CAL PLL after each trial value of Ra. If you did not do that, the frequency indicated in your tests may not be correct. Also keep in mind that the compensation is applied to the PLL only. Temperature variations in the BFO will also change the frequency and further complicate matters - there may not be a direct relationship between the PLL compensation and the overall drift due to the addition of the BFO drift into the equation - in other words, your expectations may have been correct, but the actual frequency is being modified by the BFO drift causing the overall drift to be something other than expected. Every K2 will be a bit different, so your experience may not be universal. 73, Don W3FPR Lamb, Dick Judy wrote: I'm trying without success to optimize resistor RA on the K2 thermistor board. I should first say that the temperature compensation with the provided 33K resistor is quite good--I just wanted to optimize it. With RA at 33K, I'm measuring drift on the 40 and 80 meter bands after transmitting to be about 40 Hz. I'm measuring this by zero beating my K2 warmed up on receive only against a standard, then transmitting continuously at 20 W for about 8 min. (resulting in a heat sink that's quite warm), then zeroing again against the standard. For example, the measurement before transmitting (as displayed on the K2 readout) might be 4000.00, and the measurement after transmitting and zero beating again might be 3999.96. I expected that by adjusting the value of RA between the limits of 15K and 56K noted in the K2 Temperature-Compensated PLL Reference Upgrade instructions, I could move from a point of under compensation to over compensation. For example, given the same test conditions, one extreme might be 4000.00 from receive only to 3999.90 after transmit, and the other extreme might be 4000.00 to 4000.10. Someplace between would be optimum compensation with almost no change during warm up due to transmitting. I realize, of course, my experiment isn't precisely repeatable, and there will always be some random drift, and that different components will affect the drift at different points in the cycle. However, I still expected to find that changing RA made a noticeable difference between the extremes, and I'm not seeing that. At neither extreme can I get the zero beat display on the K2 to be higher than it was before transmitting. At most, the extreme resistance values seem to change the outcome about 20 Hz. I am running CAL PLL after each change in RA. Squirting component cooler on the thermistor does cause a rapid and extreme change in frequency, so it appears the thermistor circuit is at least doing something. Is my experience typical? Might there be something wrong in my circuit? Would changing values other than RA help? ___ 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 Filter IMD numbers
The differences in filter loss are made up automatically in the DSP, and we have a good enough noise figure in the front end that the overall sensitivity of the RX does not change significantly. 73, Eric WA6HHQ [EMAIL PROTECTED] wrote: Presumably, the 8 pole filter would have steeper skirts but a higher insertion loss than the 5 pole filter. Don't know how it will play out in the real world. I decided to wait on ordering roofing filters until more is known. Craig Buck k4ia Fredericksburg, Virginia USA ** 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 ___ 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] N2CQ QRP Contest Calendar: Sept 14 - Oct 14, 2007
~ N2CQ QRP CONTEST CALENDAR September 14 - Oct 14,2007 ~ FISTS: Get Your Feet Wet Weekend ... QRP Category Sep 14, z to Sep 17, z Rules: http://www.fists.org/index.html ~ AGB NEMIGA Contest (80M CW/SSB) ... QRP Category Sept 14, 2100z to 2400z Rules: http://www.qsl.net/eu1eu/agb_nemiga.htm ~ PODXS 070 Club 80m Autumn Sprint (PSK31) ... QRP Category Sep 14, 2000 Local to 0200 Local Rules: http://podxs.com/html/070_club.html ~ Scandinavian Activity Contest (CW) ... QRP Category Sep 15, 1200z to Sep 16, 1200z Rules: http://www.sk3bg.se/contest/sacnsc.htm ~ South Carolina QSO Party (ALL) ... QRP Category Sep 15, 1300z to Sep 16, 2100z Rules: http://www.kf4ghc.net/ ~ QRP Afield (All) *** QRP Contest *** Sep 15, 1500z to 2100z Rules: http://newenglandqrp.org/ ~ Washington State Salmon Run (CW/SSB) ... QRP Category Sep 15, 1600z to Sep 16, 0700z Sep 16, 1600z to Sep 16, 2400z Rules: http://www.wwdxc.org/ ~ NA Sprint (SSB)... QRP Category Sep 16, z to 0400z Rules: http://www.ncjweb.com/sprintrules.php ~ RUN FOR THE BACON (CW) *** QRP CONTEST *** EDT: Sep 16, 9 PM to 11 PM UTC: Sep 17, 0100z 0300z Rules: http://www.gentzow.com/fpqrp/ ~ NAQCC Straight Key/Bug Sprint *** QRP CONTEST! *** EDT: Sep 19, 8:30 PM to 10:30 PM UTC: Sep 20, 0030z to 0230z Rules: http://www.arm-tek.net/~yoel/contests.html ~ Scandinavian Activity Contest (SSB) ... QRP Category Sep 22, 1200z to Sep 23, 1200z Rules: http://www.sk3bg.se/contest/sacnsc.htm ~ AGCW VHF/UHF CW Contest ... QRP Category Sep 22, 1600z to 2100z Rules: http://www.agcw.org/agcw-con/2007/Englisch/agcw-dl0_e.htm ~ SKCC Weekend Sprint (Straight Key CW) ... QRP Category Sep 23, z to 2400z Rules: http://www.iglou.com/sonic//skcc/wknd-sprint-rules.html ~ Fall QRP Homebrewer Sprint (CW/PSK31) ***QRP CONTEST*** Sep 24, z to 0400z Rules: http://www.njqrp.org/data/qrphomebrewersprint.html ~ CQWW RTTY DX Contest ... 150w Category Sep 29, z to Sep 30, 2400z Rules: http://www.cq-amateur-radio.com/awards.html ~ Texas QSO Party (All) ... QRP Category Sep 29, 1400z to Sep 30, 0200z Sep 30, 1400z to Sep 30, 2000z Rules: http://www.txqp.org/ ~ TOEC WW Grid Contest (CW) ... QRP Category Sep 29, 1200z to Sep 30, 1200z Rules: http://www.sk3bg.se/contest/toecwwgc.htm ~ FISTS Coast to Coast Contest ... QRP Category Sep 29, 1800z to Sep 30, 1800z Rules: http://www.tomochka.com/k7fff/fnw_c2c06.html ~ MQRD Monthly Sprint (CW/PH/Digital) *** QRP Contest *** Sep 29, 1800z to 2200z Rules: http://w2agn.net/mqfdsprint.html ~ Adventure Radio Spartan Sprint (CW) *** QRP CONTEST! *** Oct 2, 0100z to 0300z (First Monday 9 PM EDT) Rules: http://www.arsqrp.com/ ~ German Telegraphy Contest (CW) ... QRP Category Oct 3, 0700z to 0959z Rules: http://www.agcw.org/agcw-con/2007/Englisch/dtc_e.htm ~ PRO CW Contest ... QRP Category Oct 6, 1600z to 1800z and Oct 7, 0600z to 0800z Rules: http://www.procwclub.yo6ex.ro/contesrules.htm ~ TARA PSK31 Rumble (PSK31 only) ... QRP Category Oct 6, z to 2400z Rules: http://www.n2ty.org/seasons/tara_seasons.html ~ EU SPRINT CONTEST (SSB) ... 100W category Oct 6, 1600z to 1959z Rules: http://www.eusprint.com/ ~ California QSO Party (CW/SSB) ... QRP Category Oct 6, 1600z to Oct 7, 2159z Rules: http://www.cqp.org/ ~ RSGB 21/28 MHz Contest (CW/SSB) ... QRP Category Oct 7, 0700z to 1900z Rules: http://www.contesting.co.uk/hfcc/rules/r2128.shtml
Re: [Elecraft] K3 specs
Eric, If you want someone else to beat up on the vendors...just list their names here on the reflector. I am sure they will then be flooded with phone calls. Better yet, if those vendors need help in getting their products to you, maybe we can mobilize some K3-owners-to-be to quickly arrive and expedite matters. My field of expertise is quality control and quality assurance. Any of those vendors near NC? 73, Henry - K4TMC Raleigh, NC -Original Message- From: Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] To: Thom LaCosta [EMAIL PROTECTED] Cc: Elecraft elecraft@mailman.qth.net; Don Rasmussen [EMAIL PROTECTED] Sent: Thu, 13 Sep 2007 5:42 pm Subject: Re: [Elecraft] K3 specs And we're still short several key parts, so we won't ship on the 17th. :-( I'm waiting for replies from several vendors and will post as soon as I have good information. I'm beating on them as hard as I can.. :-) 73, Eric WA6HHQ --- Thom LaCosta wrote: On Thu, 13 Sep 2007, Don Rasmussen wrote: We're four days from the target date for the first K3 delivery and performance numbers are being released. What could this mean? ;-) That there really are K3s, that there are measurements and Santa Claus has gainful employment. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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 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] vendors
Hey, u want to beat up on the vendors? Better get an air ticket because lots of parts are not MADE IN THE USA anymore, if ever. for example, people ask me how can u take medicine there in Thailand? Answer, my meds come from same place as urs in usa India, China, and some other less savory places. And what about the knock-offs? Remember the sub-standard metal bolt crisis of 25 yrs ago? Those bolts are holding up USA bridges today, eh? Anyone want to announce the contry of origin of most electronic parts today? Who out there actually knows, speak up. 73 Charles Harpole, HS0ZCW [EMAIL PROTECTED] _ More photos; more messages; more whatever. Windows Live Hotmail - NOW with 5GB storage. http://imagine-windowslive.com/hotmail/?locale=en-usocid=TXT_TAGHM_migration_HM_mini_5G_0907 ___ 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 Filter IMD numbers
Hi Buck, Primarily cost. The 5 pole is significantly less expensive, but has a wider shape factor. 73, Eric _..._ [EMAIL PROTECTED] wrote: In a message dated 9/13/2007 7:01:15 P.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: The differences in filter loss are made up automatically in the DSP, and we have a good enough noise figure in the front end that the overall sensitivity of the RX does not change significantly. So why bother to offer both a 5 pole and 8 pole filter? k4ia Craig Buck Fredericksburg, Virginia USA See what's new at AOL.com http://www.aol.com?NCID=AOLCMP0030001170 and Make AOL Your Homepage http://www.aol.com/mksplash.adp?NCID=AOLCMP0030001169. ___ 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 specs
Gosh, Henry -- I don't think you thought through the political-economic dynamics here. :-) The vendors in question must be single-source on these parts, or they would have been back-up ordered from a secondary source and there wouldn't even be an issue. If these vendors get all kinds of calls from Elecraft customers, they will darn well KNOW they are single-source, and then who's in the cat-bird seat? They are! You don't want that to happen. You want your vendors to believe you can always order from somebody else. If they know they have you over a barrel, they can jack the price up and drop you to the end of the queue with impunity. Purchasing 101. :-) Bill / W5WVO [EMAIL PROTECTED] wrote: Eric, If you want someone else to beat up on the vendors...just list their names here on the reflector. I am sure they will then be flooded with phone calls. Better yet, if those vendors need help in getting their products to you, maybe we can mobilize some K3-owners-to-be to quickly arrive and expedite matters. My field of expertise is quality control and quality assurance. Any of those vendors near NC? 73, Henry - K4TMC Raleigh, NC -Original Message- From: Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] To: Thom LaCosta [EMAIL PROTECTED] Cc: Elecraft elecraft@mailman.qth.net; Don Rasmussen [EMAIL PROTECTED] Sent: Thu, 13 Sep 2007 5:42 pm Subject: Re: [Elecraft] K3 specs And we're still short several key parts, so we won't ship on the 17th. :-( I'm waiting for replies from several vendors and will post as soon as I have good information. I'm beating on them as hard as I can.. :-) 73, Eric WA6HHQ --- Thom LaCosta wrote: On Thu, 13 Sep 2007, Don Rasmussen wrote: We're four days from the target date for the first K3 delivery and performance numbers are being released. What could this mean? ;-) That there really are K3s, that there are measurements and Santa Claus has gainful employment. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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 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 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 alignment confusion...
I am at the 40-meter transmitter alignment stage in Alignment and Test, Part III. It instructs me to Place the K2 into tune mode and activate the built-in wattmeter by holding TUNE. Using the alignment tool, adjust L1 for maximum output. And, do the same with L2, etc. etc. etc. First, I'm going into a 50W dummy load/Wattmeter (MFJ 267). And I have my Cal Curr setting at 2.0, and Power is set to 2.0 as well. I also have the radio set to 7100 for freq. When I put it into Tune mode, I get a reading of P. 0.2 or P. 0.3 through 0.4 It will flicker back and forth across those three values whether I turn the tap on L1 or L2 or just leave it completely alone. At the info triangle at the start of this section, it says you'll place the K2 into TUNE mode by holding TUNE. However, if you hold the button in it makes no difference from what happens if you just hold it in long enough to activate the P. 0.2 (etc.) display I do not have a key plugged in, so I obviously am not keying anything at the time of tuning...but it did not state you needed a key attached, and I presume putting it into Tune mode is keying the radio anyhowwhich may be an incorrect presumption...heck if I know. I went into the trouble shooting section, and it appears I need to be looking at Problem 150 through 160 The resistors are correct, the Diode appears to be correct (so small I can't read any numbers on it, but it checked out at the time of installation and is oriented correctly., I've not been able to find any shorts, the Transformers T1-T4 are wound as per part III of the assembly section. I've not checked the DC voltages because I cant' find in the manual what they should be reading or whether to check with power on or off and have reached the end of my patience for the evening and am not certain I'm even on the right path... Any direction would be appreciated. This build has checked out on every step to date...but I'm stumped. David King ___ 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] Regarding K3 Order Changes
For those of you who may be interested, I sent the following query to Lisa at Elecraft: I apologize for adding to your load but I have a quick question. I have an order in place for a K3. I would like to make changes to my order. Should I wait for a notice from Elecraft that my order is about to ship and inquiring whether I have changes to make? OR, should I go ahead (now) and tell you the changes I wish to make to my order? Lisa's response: Thank you for your inquiry. The earlier the better for changes. You can just email them to me and I can acknowledge that we have received them. Prior to shipment we will then email you copy of your invoice so that you can confirm all items. It helps us to know as soon as possible so that we can have the items you want when we ship. Thank you, Lisa Jones Mike W5FTD ___ 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] Final payment for K3 order
Rather than add to Lisa's load I'll first ask here Has anyone inquired about paying the balances that many / most of us will owe when the K3's are ready to ship? I'm under the impression that a CC # used for the initial deposit is NOT kept on file and therefore she'll need a CC # to cover the balance. Perhaps we'll all get an e-mailed invoice with everything listed that will serve to confirm that we're being sent what we ordered. Maybe this is a question for Eric or Wayne to answer ... 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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
