Re: [Elecraft] K2 KAT100 and BL2 questions
Brian Try a current choke 'balun' instead of the BL2. As a temporary antenna I have 25m of twin speaker wire run out from the shack under the roof tiles - that's about 7m - and then the remaining 18m split as a doublet. It hangs at an average height of 5m from a couple of trees. The 'feeder' end connects through a current choke on a short piece of RG58 to the KAT3 in my K3. The KAT100 has the same matching range as the KAT3 and I assume the LC values are the similar. I have no idea what the loads are but the tuner finds a match on all bands 10-80m - but not 160m where the radiation resistance is tiny and the common mode choke good enough to render the band effectively dead unless I connect just the coax inner. Pete Connors, F5VNB ___ 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] Fed-UP with Waffle
I have subscribed to the reflector for a several years and now find it has become a WAFFLE ( re: UI rant dramatised) or a K3 whinge! Please someone sort this worthwihile source of information out. Larry (G0IKE) ___ 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] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3
Another SDR is advertised by Elektor http://www.elektor.com/ GBP72 for the assembled and tested pcb. David G3UNA ___ 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 KAT100 and BL2 questions
Brian Lloyd wrote: current node (odd multiple of a 1/4 wave)? Yes, I know that the ability to achieve a conjugate match depends on the capacitance and inductance range of the tuner. Also this affects the range of the real component (resistance) that can be matched and what frequency you are trying to match it on. The ablity to match the real component depends on the imaginary component. For a high impedance match, I believe you want the C at the antenna side. If you convert 50 ohms in series with the extreme inductance values (maximum, I think) to the equivalent parallel combination, at the frequency, you will get the maximum possible real part transformation. This might not be achievable for a particular frequency and antenna reactive component, because of limits in the range of the C value, it which case you may need to iterate to get an L value compatible with the limiting C value. At the extreme limits, the SWR steps will be rather high, so you might want to consider doing the calculation with an L value that is beyond the range on the grounds that the resistance match will be no worse than that halfway between the limit value and the next possible value. 2. Does the BL2 have a problem when looking at a really high impedance, i.e. when center feeding a full-wave doublet? And yes, I am aware that I really wouldn't want to feed the balun with coax from the tuner but rather should put the balun as close to the tuner as possible and then run a low-loss balanced line from the balun to the doublet and that the feedline will act as a transformer to change the impedance (resistance AND reactance) as seen by the balun and, therefore, the tuner. All current baluns don't like high common mode impedances. In 4:1 mode, they also don't like high differential mode impedances. In both cases, this is because the leakage inductance reactance is not significantly higher than that from the relevant feedpoint impedance. The best place for a current balun is before the ATU. (A high common mode impedance with a low differential one is probably not a problem, because most of the power will go into the differential one; the balun won't help much but you probably didn't need one.) I guess the real question is whether I want to get a KAT100 and a BL2 or just stick with my SGC-231. The nice thing about the KAT100 is that it The SGC will also have frequency and reactance based variations in its resistance matching range. It's balun may well not like high impedances. doesn't draw power unless it is tuning. My SGC-231 draws power all the The KAT2 uses latching relays; the KAT100 uses continuously powered ones. time to hold in the relays. That sucks up more battery. Also it is physically bigger. Looking at the schematics for both I can see that the SGC-231 has a greater range of C and L than the KAT100 does but maybe the KAT100 is enough, especially when ganged up with the BL2 to provide a 4:1 impedance ration to start with. I know the theory but was looking That implies operating the balun well away from its design impedance. Particularly on lower bands, the shunt impedance will be too low. for a quick answer from the field of people here who have more experience with this than I do. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.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] Fed-UP with Waffle
I find a lot of good information here. Suggestion for usage: Look at and read the information you find useful for you and then ignore the rest. I.e. if you want to read about KX1, ignore everything with K3 or [K3] or K2 etc in the subject. Works great for me! ;) I wasn't actually interested in your message when I cliked on it but was curious as to what waffles had to do with Elecraft and ham radio. As it turns out - nothing. So I agree with you Larry; here it was right in front of me: useless material that has nothing to do here. Are - LB3SA Larry Dodson-2 wrote: I have subscribed to the reflector for a several years and now find it has become a WAFFLE ( re: UI rant dramatised) or a K3 whinge! Please someone sort this worthwihile source of information out. Larry (G0IKE) -- View this message in context: http://www.nabble.com/Fed-UP-with-Waffle-tp17618148p17621132.html Sent from the Elecraft mailing list archive at Nabble.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 and Icom PW-1
As I think about this I'm not sure that this will work for the PW-1. Because the PW-1 handles the WARC bands, I'm going to guess that it requires a CI-V line for band information rather than the band level output. Joe, do you know for sure? The way I sync my IC-7800 with a PW-1 makes it clear to me that it's a CI-V path, not a band voltage. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Subich, W4TV Sent: Monday, June 02, 2008 1:33 PM To: 'Jerry Flanders'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 IIRC, this method only works for the major bands. ICOM did not provide for the others. Actually, my design uses a resistive divider network - with standard 2% resistors - that takes +12V (regulated for reliability) and provides the proper voltage for all bands 160 - 6 M based on which tap is grounded. It is a bit different than the Top Ten approach which uses individual trimmers to set the output voltage for each band and source drivers that have been discontinued. Note - Icom uses the same voltage for 17/15 and 12/10 so it requires 8 outputs to cover 160, 80, 40, 30, 20, 15/17, 12/10, and 6m. The decoder does not directly decode 6 meters (BCD 10) but the circuit can be configured to select 6 as a none of the above case (BCD 0) or a dedicated 6 M circuit could be added to the basic decoder. I have been asked off-line if I would be willing to offer and interface - either complete or as a mini-kit. I have no interest in building a complete product by hand and the cost of a small run in Europe is currently prohibitive. However, I'll ask here one time only ... how much interest would there be in a kit? Should a kit include a case or are users likely to incorporate it in another piece of equipment? Responses direct only ... 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jerry Flanders Sent: Monday, June 02, 2008 1:48 PM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 IIRC, this method only works for the major bands. ICOM did not provide for the others. Jerry W4UK At 01:42 PM 6/2/2008, Dick Dievendorff wrote: See also Top Ten Devices application note #3, http://www.qth.com/topten/apnote3.htm Unfortunately the schematic doesn't seem to show up (on my browser), but I've seen the schematic before. It's the BCD to voltage divider network (with trimmer pots) that Joe mentions below. The schematic was once at http://www.qth.com/topten/icomencd.gif but the file doesn't seem to be there now. I'll forward this to Dave Hawes of Top Ten Devices; maybe he can get the image file restored. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Subich, W4TV Sent: Monday, June 02, 2008 9:30 AM To: 'Bob Serwy'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 Bob, There are two approaches that will work to do automatic band switching with the K3 and PW-1. The first is to use something like the microHAM Band Decoder (or new Station Master which replaces Band Decoder) to convert the Elecraft (Kenwood) IF; CAT data to Icom CI-V Transceive broadcasts. The second would be to build a BCD to 1 of 10 decoder and use that to drive a voltage divider to create the Icom compatible Band Select voltage. The Station Master will be available off the shelf after Friedrichshafen. I can supply notes on the BCD decoder approach but have not built/tested any devices. That is a low tech solution and not something microHAM is likely to produce and I'm not inclined to get involved in building one off units since that is a relatively high cost/low return proposition. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Serwy Sent: Monday, June 02, 2008 11:24 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 and Icom PW-1 Any one has a K3 and a PW-1 hooked up for automatic band switching of the PW-1? If so, how as it accomplished? Thanks Bob Serwy - N9RS ___ 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 Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.4/1478 - Release Date: 6/2/2008 7:12 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:
[Elecraft] K3 - Proset K2 Mic Frequency Response
Last week I posted a message asking for info about the frequency response of the mic in the Proset K2. I didn't receive any replies but I've now heard from Bob Heil that it's 40 Hz - 12 kHz. Just thought I'd pass it on in case it's useful to anyone. 73 to all Geoff G3UCK ___ 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] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3
Jerry Flanders wrote on Tuesday, June 03, 2008 1:34 AM I also have one of Jack Smith's Z-1U buffer amplifiers (Clifton Laboratories) running between the K3's KXV3 output and the SR40 for isolation. (I didn't test to see if the isolation is really needed - maybe not, since the LO is offset 24 KHz.) Jerry, in my opinion it is always wise to use a buffer amplifier which exhibits a high degree of reverse isolation, such as Jack's Z-1, when picking off a sample of signals from a receiver's signal path. As I am not too familiar with the K3 I could be wrong but I believe that the point at which you are taking a sample for the SR40 is somewhere between the first mixer and the input of the 8.215 MHz IF filter. If that is the case and you did *not* use a suitable buffer amp, the SR40's LO 'leaked' signal would most likely appear at the input of the filter even though its offset is 24 kHz. This means that the filter has to deal with more unwanted signal power than just the 'routine' stuff coming from the mixer. Even worse is the possibilty that the SR40's LO 'leaked' signal might back up into the mixer, mix with the LO or its harmonics and/ or other signals in the mixer, and produce its own family of spurious products which would cause additional problems for the filter. Some of these products might even lie within the filter's passband and be heard, but I have not done the maths to find out if that is the case. As an aside, a crystal filter can itself generate significant IMD products if overdriven, which is why it it is essential to measure the IIP3 of a crystal filter at various input levels and spacings when designing a receiver. 73, Geoff GM4ESD ___ 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 and Icom PW-1
Dick, As I think about this I'm not sure that this will work for the PW-1. Because the PW-1 handles the WARC bands, I'm going to guess that it requires a CI-V line for band information rather than the band level output. Joe, do you know for sure? The PW-1 manual shows the +8.0 V reference and Band Voltage input connections on the ACC sockets consistent with the old style (2KL, 4KL, AT-500) band switching system. If the connections are present, I see no reason they should not be functional but I do not have a PW-1 to test with. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dick Dievendorff Sent: Tuesday, June 03, 2008 8:05 AM To: [EMAIL PROTECTED]; 'Jerry Flanders'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 As I think about this I'm not sure that this will work for the PW-1. Because the PW-1 handles the WARC bands, I'm going to guess that it requires a CI-V line for band information rather than the band level output. Joe, do you know for sure? The way I sync my IC-7800 with a PW-1 makes it clear to me that it's a CI-V path, not a band voltage. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Subich, W4TV Sent: Monday, June 02, 2008 1:33 PM To: 'Jerry Flanders'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 IIRC, this method only works for the major bands. ICOM did not provide for the others. Actually, my design uses a resistive divider network - with standard 2% resistors - that takes +12V (regulated for reliability) and provides the proper voltage for all bands 160 - 6 M based on which tap is grounded. It is a bit different than the Top Ten approach which uses individual trimmers to set the output voltage for each band and source drivers that have been discontinued. Note - Icom uses the same voltage for 17/15 and 12/10 so it requires 8 outputs to cover 160, 80, 40, 30, 20, 15/17, 12/10, and 6m. The decoder does not directly decode 6 meters (BCD 10) but the circuit can be configured to select 6 as a none of the above case (BCD 0) or a dedicated 6 M circuit could be added to the basic decoder. I have been asked off-line if I would be willing to offer and interface - either complete or as a mini-kit. I have no interest in building a complete product by hand and the cost of a small run in Europe is currently prohibitive. However, I'll ask here one time only ... how much interest would there be in a kit? Should a kit include a case or are users likely to incorporate it in another piece of equipment? Responses direct only ... 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jerry Flanders Sent: Monday, June 02, 2008 1:48 PM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 IIRC, this method only works for the major bands. ICOM did not provide for the others. Jerry W4UK At 01:42 PM 6/2/2008, Dick Dievendorff wrote: See also Top Ten Devices application note #3, http://www.qth.com/topten/apnote3.htm Unfortunately the schematic doesn't seem to show up (on my browser), but I've seen the schematic before. It's the BCD to voltage divider network (with trimmer pots) that Joe mentions below. The schematic was once at http://www.qth.com/topten/icomencd.gif but the file doesn't seem to be there now. I'll forward this to Dave Hawes of Top Ten Devices; maybe he can get the image file restored. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Subich, W4TV Sent: Monday, June 02, 2008 9:30 AM To: 'Bob Serwy'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 and Icom PW-1 Bob, There are two approaches that will work to do automatic band switching with the K3 and PW-1. The first is to use something like the microHAM Band Decoder (or new Station Master which replaces Band Decoder) to convert the Elecraft (Kenwood) IF; CAT data to Icom CI-V Transceive broadcasts. The second would be to build a BCD to 1 of 10 decoder and use that to drive a voltage divider to create the Icom compatible Band Select voltage. The Station Master will be available off the shelf after Friedrichshafen. I can supply notes on the BCD decoder approach but have not built/tested any devices. That is a low tech solution and not something microHAM is likely to produce and I'm not inclined to get involved in building one off units since that is a relatively high cost/low return proposition. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Serwy Sent:
[Elecraft] UI rant dramatized 2 K3
He used... sarcasm. He knew all the tricks, dramatic irony, metaphor, bathos, puns, parody, litotes and... satire. He was vicious. LUIGI VERCOTTI (Michael Palin), The Piranha Brothers Monty Python's Flying Circus TV Show - Episode 14 Of course, for humor to be effective, one must have a common reference and even then, some don't get it. 73, Julius Julius Fazekas N2WN Tennessee Contest Group TnQP http://www.tnqp.org/ Elecraft K2/100 #3311 Elecraft K2/100 #4455 Elecraft K3/100 #366 ___ 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 KAT100 and BL2 questions
Pete, Brian and all, The BL2 *is* a current choke 'balun' - both in the 4:1 and the 1:1 configuration. 73, Don W3FPR Peter Connors, F5VNB wrote: Brian Try a current choke 'balun' instead of the BL2. As a temporary antenna I have 25m of twin speaker wire run out from the shack under the roof tiles - that's about 7m - and then the remaining 18m split as a doublet. It hangs at an average height of 5m from a couple of trees. The 'feeder' end connects through a current choke on a short piece of RG58 to the KAT3 in my K3. The KAT100 has the same matching range as the KAT3 and I assume the LC values are the similar. ___ 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] K1 FS $425. shipped
K1 FS $425. shipped 40, 30, 20, 15 2 band board, 80, 20 Auto antenna tuner Elecraft stand All ready to use works FB backlight and NB kits not built yet but included with the radio $425 all shipped to you in the 48 states. ___ 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 SDR note by G3UNA
David Which article/Kit/Module did you mean? I found SDR from March 2007 but not a newer article. 73 Art -- Message: 6 Date: Tue, 3 Jun 2008 07:04:54 +0100 From: David Cutter [EMAIL PROTECTED] Subject: Re: [Elecraft] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3 Another SDR is advertised by Elektor http://www.elektor.com/ GBP72 for the assembled and tested pcb. David G3UNA ___ 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/N 740 alive and well
I use LOG EQF with no problems with my K-3. I think you will love the rig. Bruce-W8FU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Allan Taylor Sent: Tuesday, June 03, 2008 12:16 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 S/N 740 alive and well An uneventful and slow/methodical build of S/N 740 reached a glorious and successful conclusion this evening with the install of the power amp. I have not yet put it on the air, but the CW tone monitored on the other rig is sweet and clean. QSK turnaround (full-QSK) seems at least as good as the OmniVI. Now to make up the appropriate interface cables for key/keyer and find cables for computer interface. I expect it will talk to TRLog and LOG-EQF without difficulty. -- 73 Allan K7GT ___ 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. Version: 8.0.100 / Virus Database: 269.24.5/1479 - Release Date: 6/2/2008 7:02 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
[Elecraft] K3 #977
Ordered: 12/19 Katiegram: 5/12 Shipped: 5/23 Received: 5/28 Assembly completed: 6/1 The rig is worth waiting for. The construction is straight-forward, although I recommend reading all of the posts of people gone before to make it a smooth experience. Make sure you check out the K3 Wiki and read and post all of the manual changes before you start. Some of the tips I found most worthwhile and other observations: 1. Cut the materials list items into small strips and use them to label the parts tray. It prevents you from grabbing a 3/16 screw when it was supposed to be a 1/4. 2. Allow a lot of room to sort through your packaged items before assembly. They are packaged in quite a large assortment of anti-static bags and it's easy to lose track of where you placed one. 3. It is possible to have a defective item, just check it carefully before you contact Elecraft. I did receive a top stiffening bar that was drilled incorrectly. A replacement is on the way and the old one works fine in the meantime. 4. I found extra parts in quite a few bags, so you will most likely have everything you need, even if one bag is short. You will also receive a dedicated bag of extra parts of most used items. Very thoughtful. 5. I did not find the painted surfaces particularly susceptible to scratching while assembling. Others had complained about scratching the screw holes while assembling and disassembling but I moved slow and with minimum force and didn't have a problem. 6. The front panel went together much easier than others had stated. Maybe a production change. A board I did find very tight - the KPA3IO board (part of the 100W option). It requires a bit of careful pressure to seat properly. 7. Another delicate area is the LCD clear plastic cover. It uses 2-56 screws in the corners. I found the metal front panel holes rather tight, almost as if you were supposed to use the 2-56 screws as hole taps. They didn't want to start properly and required some finessing to get them started. It's almost as if they were painted after they were tapped, with the paint filling in the holes. 8. One last caveat, if you find something not working, search the forum archives. Someone has already stepped in that hole and the answer is probably there. It's most likely a step skipped or a config:item that you haven't enabled or set properly. To give you an idea of how good it plays, my first contact was on 20M CW using a 25 foot piece of wire, no ground counterpoise and 50W. Got a 5-9+ from RI. Next QSO was SSB to SC - 5-9 with QSB. I look forward to the back-ordered items to complete the best rig I have ever owned. 73, Forrest WA3FAE ___ 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 - signal loss in band-pass filter
Thanks to both for info and assistance. You were right Don about the 'weirdness' when injecting signals by C7. It turns out that the sensitivity issue was caused by a tiny solder bridge on the SMD MC1350 (IF amp) which I found by injecting a signal @ IF freq. before and after the IF Amp. The receiver is now working very nice with an IMD of -136db. The filter/BFO set-up went without a hitch and RX sounds like a million bucks with absolutely no signs of ringing with tight filtering. Are - LB3SA KX1# 1864 K2# 6498 K3: Delivery late July Don Wilhelm wrote: Are, The 'wierd' symptoms you report could be normal depending on the output characteristics of your signal generator. The capacitors C7 and C8 in the 40 meter bandpass form a voltage divider that is intended to match the high impedance of the filter parallel tuned circuits down to a lower impedance level. If a signal is arbitrary injected at the top end of C7, there can (and likely will) be more voltage developed across the filter than if the same signal voltage is injected at the junction of C7 and C8 (a similar argument applies to the other bands). Put RFC7 and W6 back in place to give the proper termination for the filter. A valid comparison is to compare the signal at the junction of C7 and C8 with the signal at the junction of C4 and C5. That would give an indication of the loss through the bandpass filter. That comparison is more easily done in transmit than receive (the filter is bi-lateral). Compare the RF voltage at the junction of D6 and D7 with the RF voltage at W6 using a transmit power level of 1 to 2 watts. If the bandpass filter is not indicating a substantial loss, then you may have some other problem in the receive path. If your bandpass filter does show a substantial loss, try re-peaking it first, and if that does not produce adequate results, then look for an impedance mismatch at the filter terminations - check R36 and R5 first for proper values and good soldering. There are many other places other than the bandpass filter that can cause weak receive. If your K2 develops full output power on all bands, then the bandpass filter is likely not the problem area. 73, Don W3FPR -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17627350.html Sent from the Elecraft mailing list archive at Nabble.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] K2 KAT100 and BL2 questions
Don I agree that the BL2 is a true current balun using a balanced design that chokes common mode currents while also transforming impedances to ease a conjugate match - albeit one of the ratios is 1:1 - but my coax-through-ferrite-beads unbalanced common mode choke *only* does what it says on the tin without any impedance transformation, hence my quotes around 'balun'. Without it, the 1.8MHz common mode noise pickup from my abject antenna siting is about S5/6 but with it the noise is S1/2. I leave it to the atu to transform complex impedance. 73, Pete F5VNB Don Wilhelm wrote: Pete, Brian and all, The BL2 *is* a current choke 'balun' - both in the 4:1 and the 1:1 configuration. 73, Don W3FPR ___ 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 - Proset K2 Mic Frequency Response
On Tue, 3 Jun 2008 12:53:44 +0100, Geoffrey Downs wrote: Last week I posted a message asking for info about the frequency response of the mic in the Proset K2. I didn't receive any replies but I've now heard from Bob Heil that it's 40 Hz - 12 kHz. Just thought I'd pass it on in case it's useful to anyone. It is NOT. ALL ham mics (as well as many pro mics) meet that VERY broad description -- it tells us nothing! To be meaningful, there's must be a +/- dB tolerance, AND you need to see a graph of the frequency response. To understand ham mics and their frequency response, study pages 41-45 in http://audiosystemsgroup.com/HamInterfacing.pdf Also, study Appendix 6 of http://audiosystemsgroup.com/RFI-Ham.pdf 73, Jim Brown K9YC ___ 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 - signal loss in band-pass filter
Just out of curiosity... Where was that solder bridge on the MC1350? Was it already on the SMD assembly when you received it, or was it something you caused by your soldering? The reason I ask is that I had a problem with my SMD MC1350, never found out what caused it, and just replaced it. If there is something there to watch out for, it may help others... 73 - Kristinn, TF3KX Are LB3SA wrote: Thanks to both for info and assistance. You were right Don about the 'weirdness' when injecting signals by C7. It turns out that the sensitivity issue was caused by a tiny solder bridge on the SMD MC1350 (IF amp) which I found by injecting a signal @ IF freq. before and after the IF Amp. The receiver is now working very nice with an IMD of -136db. The filter/BFO set-up went without a hitch and RX sounds like a million bucks with absolutely no signs of ringing with tight filtering. Are - LB3SA KX1# 1864 K2# 6498 K3: Delivery late July Don Wilhelm wrote: Are, The 'wierd' symptoms you report could be normal depending on the output characteristics of your signal generator. The capacitors C7 and C8 in the 40 meter bandpass form a voltage divider that is intended to match the high impedance of the filter parallel tuned circuits down to a lower impedance level. If a signal is arbitrary injected at the top end of C7, there can (and likely will) be more voltage developed across the filter than if the same signal voltage is injected at the junction of C7 and C8 (a similar argument applies to the other bands). Put RFC7 and W6 back in place to give the proper termination for the filter. A valid comparison is to compare the signal at the junction of C7 and C8 with the signal at the junction of C4 and C5. That would give an indication of the loss through the bandpass filter. That comparison is more easily done in transmit than receive (the filter is bi-lateral). Compare the RF voltage at the junction of D6 and D7 with the RF voltage at W6 using a transmit power level of 1 to 2 watts. If the bandpass filter is not indicating a substantial loss, then you may have some other problem in the receive path. If your bandpass filter does show a substantial loss, try re-peaking it first, and if that does not produce adequate results, then look for an impedance mismatch at the filter terminations - check R36 and R5 first for proper values and good soldering. There are many other places other than the bandpass filter that can cause weak receive. If your K2 develops full output power on all bands, then the bandpass filter is likely not the problem area. 73, Don W3FPR -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17627941.html Sent from the Elecraft mailing list archive at Nabble.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] K2 - signal loss in band-pass filter
It was actually one of your earlier posts (thanks!) that prompted me to inject the IF signal before and after the IF Amp. At that point I had pulled out lot of hair and lost sleep over a low sensitivity K2. As to when the solder bridge got there... I'm not 100% certain that a bridge was the problem. But after I realized that the IF Amp was not amplifying I went over the solder points around the chip (I actually removed the chip and installed it again). The radio then started to work. It was actually a bit of a surprise since I never saw the problem - especially since I looked very closely at all the points through an amplifying glass many times before AND since all the voltages at MC1350 measured at specs while I had the problem. It was just the IF signal that wasn't amplifying leading me to at first think that the chip itself was defect. I only assume it was a solder bridge. And if that's the case it was probably made by me. Are - LB3SA TF3KX wrote: Just out of curiosity... Where was that solder bridge on the MC1350? Was it already on the SMD assembly when you received it, or was it something you caused by your soldering? The reason I ask is that I had a problem with my SMD MC1350, never found out what caused it, and just replaced it. If there is something there to watch out for, it may help others... 73 - Kristinn, TF3KX -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17628522.html Sent from the Elecraft mailing list archive at Nabble.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] K2 - signal loss in band-pass filter
Are, Et Al, JAT: It could be that the act of removing/reseating the MC1350 fixed the problem. Sometimes sockets don't! Regards, kurtt Kurt Pawlikowski, AKA WB9FMC The Pinrod Corporation [EMAIL PROTECTED] (773) 284-9500 http://pinrod.com Are LB3SA wrote: It was actually one of your earlier posts (thanks!) that prompted me to inject the IF signal before and after the IF Amp. At that point I had pulled out lot of hair and lost sleep over a low sensitivity K2. As to when the solder bridge got there... I'm not 100% certain that a bridge was the problem. But after I realized that the IF Amp was not amplifying I went over the solder points around the chip (I actually removed the chip and installed it again). The radio then started to work. It was actually a bit of a surprise since I never saw the problem - especially since I looked very closely at all the points through an amplifying glass many times before AND since all the voltages at MC1350 measured at specs while I had the problem. It was just the IF signal that wasn't amplifying leading me to at first think that the chip itself was defect. I only assume it was a solder bridge. And if that's the case it was probably made by me. Are - LB3SA TF3KX wrote: Just out of curiosity... Where was that solder bridge on the MC1350? Was it already on the SMD assembly when you received it, or was it something you caused by your soldering? The reason I ask is that I had a problem with my SMD MC1350, never found out what caused it, and just replaced it. If there is something there to watch out for, it may help others... 73 - Kristinn, TF3KX ___ 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] Updated Shipping Status on Website
The shipping status has been updated as of June 3, 2008 nbsp; It now reads: nbsp; Between now June 14thnbsp; we should be shipping K3 orders received through January 15th.nbsp; WhooHoo! What a long, strange trip it's been nbsp; The Grateful Dead nbsp; Truckin' ___ 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 - signal loss in band-pass filter
Interesting. In my case I never resolved if the MC1350 actually was bad. I soldered the entire assembly out of the circuit, but managed to find an original full size chip at a local store, put it in and it simply worked. So, the problem - whatever it really was - might have been the same as yours, and the SMD assembly might have worked if I had put it back into the rig the second time. At any rate, good that you are on track, and hope others may learn from this. My K2 (#6425) is working perfectly, aside from the fact that my 8V is low (about 7,56V), and as a result the S-meter can not be calibrated properly. I will ask Elecraft to send me a new regulator. 73 and good luck! - Kristinn, TF3KX Are LB3SA wrote: It was actually one of your earlier posts (thanks!) that prompted me to inject the IF signal before and after the IF Amp. At that point I had pulled out lot of hair and lost sleep over a low sensitivity K2. As to when the solder bridge got there... I'm not 100% certain that a bridge was the problem. But after I realized that the IF Amp was not amplifying I went over the solder points around the chip (I actually removed the chip and installed it again). The radio then started to work. It was actually a bit of a surprise since I never saw the problem - especially since I looked very closely at all the points through an amplifying glass many times before AND since all the voltages at MC1350 measured at specs while I had the problem. It was just the IF signal that wasn't amplifying leading me to at first think that the chip itself was defect. I only assume it was a solder bridge. And if that's the case it was probably made by me. Are - LB3SA TF3KX wrote: Just out of curiosity... Where was that solder bridge on the MC1350? Was it already on the SMD assembly when you received it, or was it something you caused by your soldering? The reason I ask is that I had a problem with my SMD MC1350, never found out what caused it, and just replaced it. If there is something there to watch out for, it may help others... 73 - Kristinn, TF3KX -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17630518.html Sent from the Elecraft mailing list archive at Nabble.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] K2 - signal loss in band-pass filter
My 8 volt regulator also outputs exactly 7.56V. I replaced it with one I bought here in Norway last week. It's also quite low at 7.62 volt. Specs guarantee it to be over 7.5V if I remember correctly so I guess we can't complain too much. But if you have a hard time getting the ALC voltage up to 3.8 volt according to the manual you can solder a 10K resistor across RP6 pins 3-4 on the control board (Gary from Elecraft suggested this for me). This works great and I now see 3.8V but it doesn't really make much of an audible difference. Are - LB3SA TF3KX wrote: In my case I never resolved if the MC1350 actually was bad. I soldered the entire assembly out of the circuit, but managed to find an original full size chip at a local store, put it in and it simply worked. So, the problem - whatever it really was - might have been the same as yours, and the SMD assembly might have worked if I had put it back into the rig the second time. At any rate, good that you are on track, and hope others may learn from this. My K2 (#6425) is working perfectly, aside from the fact that my 8V is low (about 7,56V), and as a result the S-meter can not be calibrated properly. I will ask Elecraft to send me a new regulator. -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17631255.html Sent from the Elecraft mailing list archive at Nabble.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 - 30m problem solved
My K3 quit transmitting on 30m a week ago. All other bands were OK. After using up a lot of Gary's time, Wayne called me and his first question was, Which antenna is selected? I don't know how it happened, but 30m had gotten set to ANT2. One tap on ANT and I'm back alive on 10.1 MHz. Just like my K2, the K3 antenna selection is saved on a per band/per memory basis, something I should have known since I've had my K2/KAT100 for several years now. The moral for me is, Before leaping to email [EMAIL PROTECTED], study **ALL** the icons and legends on the LCD. Quite a few are fairly small. Chagrined, I remain 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
Re: [Elecraft] K3: overwriting memories? - Try this!
Like Tony, I also found it helpful to color my VM button, but I did it in a different way. It looks good, and I and find it helpful. I stained it red with permanent ink. I took a bit of cloth and wet it with alcohol. Onto that I applied some red ink with a Sharpie pen, then rubbed it onto the button. It still shows the label on the button very clearly - just makes a pink wash. I liked it, so I then applied red around the sides of the button where it shows deeper red. I consider it permanent, but it's my radio and I like it. Windy KM5Q Tony Fegan VE3QF Fri, 30 May 2008 20:18:07 -0700 I went a step further and put a piece of white 1/4 inch masking tape over the VM key. Not pretty but it works for me. It is just enough to catch your eye and of course when you really need it, it can still be depressed. I do have an advantage in that with poor eyesight it is not easy to read and mix up the keys! My band memories are set similar to yours Doug. I have my most usedfrequency in VFO-A and my second most used frequency in VFO-B. I operate mainly SSB but monitor the other modes. I have not used the band up/down for 3 months. 73 Tony Fegan VE3QF ___ 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 - 30m problem solved
If this had been an offshore rig, you would have had to send it to a factory authorized repair facility for warranty work. Since there was no fault, you would have had to pay a service charge and shipping both ways. Another advantage of buying an Elecraft rig. 73 Rick Dettinger K7MW === My K3 quit transmitting on 30m a week ago. All other bands were OK. After using up a lot of Gary's time, Wayne called me and his first question was, Which antenna is selected? I don't know how it happened, but 30m had gotten set to ANT2. One tap on ANT and I'm back alive on 10.1 MHz. Just like my K2, the K3 antenna selection is saved on a per band/per memory basis, something I should have known since I've had my K2/KAT100 for several years now. The moral for me is, Before leaping to email [EMAIL PROTECTED], study **ALL** the icons and legends on the LCD. Quite a few are fairly small. Chagrined, I remain Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 ___ 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 useful tip
Best non slip I have found is at Wal Mart in the RV section. Comes in a roll. It beats common shelf liner which I tried once. Great to put under CW paddles also. N4ym ___ 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 - 30m problem solved
A large part of the reason I bought K3 was because it was the SDR I could operate with confidence. That means it's instant on and whenever there is an ut-oh, I think to myself what did I do wrong? first, rather than going straight to that sinking feeling. ;-) At this QTH, that's a pretty big deal. Chagrined beats the alternative. [Elecraft] K3 - 30m problem solved Fred Jensen k6dgw at foothill.net Tue Jun 3 15:01:50 EDT 2008 My K3 quit transmitting on 30m a week ago. All other bands were OK. After using up a lot of Gary's time, Wayne called me and his first question was, Which antenna is selected? I don't know how it happened, but 30m had gotten set to ANT2. One tap on ANT and I'm back alive on 10.1 MHz. Just like my K2, the K3 antenna selection is saved on a per band/per memory basis, something I should have known since I've had my K2/KAT100 for several years now. The moral for me is, Before leaping to email support at elecraft.com, study **ALL** the icons and legends on the LCD. Quite a few are fairly small. Chagrined, I remain 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] K2 - signal loss in band-pass filter
From postings on the reflector, it would seem that more than a few of K2 8v regulators are on the low side, including mine. I've just ordered a couple from a local supplier to see if they are any better, but if they are not, I will jack up the ground lead of the 8v regulator by connecting a diode in series with it - i.e. interposed between the regulator's ground lead and the ground it was connected to. A silicon diode like a 4148 (or 4001 to 4007) will effect about a 0v6 increase in output voltage and a schottky or germanium diode will give about 0v2 to 0v3 increase. Of course, this jacking up compromises the regulator's inbuilt short circuit protection but in a stable environment like the K2 it can either be accepted that it is unlikely to ever be called to work into a short circuit, or a reverse connected diode can be introduced between output and ground as protection. 73 DaveL G3TJP ___ 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 SN#000995 delivered today
I ordered my K3/100 kit on Dec. 24TH, 2007. I received the FM, AM and 2.8 filters. Backordered items: DVR, 2ND RX, 400Hz 8 pole. 995 is a real cool number and I'm a happy guy! Bob W9RFS -- View this message in context: http://www.nabble.com/K3-SN-000995-delivered-today-tp17633730p17633730.html Sent from the Elecraft mailing list archive at Nabble.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] My KX-1 do crazy things...
Many thanks to all i wait till i install the 30m board to make some new tests and answer here. yes deffinitely was due improper antenna. Part RF feedback in KX1 and part my body as ground. KX1 still rocks here :) now on 30m too :) many thanks again, have fun 73, Panos, SV1COX -- View this message in context: http://www.nabble.com/My-KX-1-do-crazy-things...-tp17410643p17634637.html Sent from the Elecraft mailing list archive at Nabble.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] Updated Shipping Status on Website
It still says that new orders are targeted for 4 months. I ordered my K3 kit on April 11th and I wonder if the 4 months will hold meaning it arrives in August or will it be closer to the 6 months of the rigs now arriving meaning October? No complaints but just curious. And a tad bit anxious ;) And excited. Like an 8 year old. On Christmas Eve. Bill NZ0T Tad Williamson wrote: The shipping status has been updated as of June 3, 2008 nbsp; It now reads: nbsp; Between now June 14thnbsp; we should be shipping K3 orders received through January 15th.nbsp; WhooHoo! What a long, strange trip it's been nbsp; The Grateful Dead nbsp; Truckin' ___ 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 -- View this message in context: http://www.nabble.com/Updated-Shipping-Status-on-Website-tp17630047p17634999.html Sent from the Elecraft mailing list archive at Nabble.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 SN#000995 delivered today
I had never thought about the quality of a serial number, but I suppose having serial number 911 should give me pause. Dick, KA1SA At 05:07 PM 6/3/2008, Bob W9RFS wrote: I ordered my K3/100 kit on Dec. 24TH, 2007. I received the FM, AM and 2.8 filters. Backordered items: DVR, 2ND RX, 400Hz 8 pole. 995 is a real cool number and I'm a happy guy! Bob W9RFS -- View this message in context: http://www.nabble.com/K3-SN-000995-delivered-today-tp17633730p17633730.html Sent from the Elecraft mailing list archive at Nabble.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] Updated Shipping Status on Website
or will it be closer to the 6 months? From the wiki: http://www.zerobeat.net/mediawiki/index.php/K3_Serial_Numbers Prior to November 2007 - 030 units released including betas. Nov 2007 - 085 units released, average wait 6 months. Dec 2007 - 065 units released, average wait 7 months. Jan 2008 - 125 units released, average wait 8 months. Feb 2008 - 175 units released, average wait 8 months. Mar 2008 - 100 units released, average wait 7 months. Apr 2008 - 175 units released, average wait 6 months. May 2008 - 175 units released, average wait 5 months. Note: I have noticed a minor delay in shipping this month, so anticipate that the wait may not drop to 4 months for June, but then again my magic marble's gone foggy like this before. ;-) I'd guess by Labor Day. [Elecraft] Updated Shipping Status on Website nz0t NZ0T at cox.net Tue Jun 3 18:14:31 EDT 2008 It still says that new orders are targeted for 4 months. I ordered my K3 kit on April 11th and I wonder if the 4 months will hold meaning it arrives in August or will it be closer to the 6 months of the rigs now arriving meaning October? No complaints but just curious. And a tad bit anxious ;) And excited. Like an 8 year old. On Christmas Eve. Bill NZ0T ___ 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] Loss of Gain below 550Hz filter width - firmware problem?
You may remember I have a problem with my K3 whereby dropping the filter width below 550Hz means I loose almost all AF gain. I have just had a little time to look into it. I was running the latest Beta software (1.96) which I see is now production. I've now loaded the latest production code, but the problem is still there. On a whim, I loaded 1.58 which I had hanging around from previous tests and everything works just great - right the way down to 50Hz filter width. I then tried standard production f/w v 1.96 again and the problem was gone, but that was before it had loaded the DSP code (I didn't realise it hadn't competed the load) and once the DSP loaded, the problem is back. I then tried v1.88 and the problem is still there. I worked backwards through versions I have (I may not have them all) until I got to version 1.66 which still had the problem, but 1.58 does not. So this looks like a problem with DSP1 code from somewhere after v1.48 of DSP onwards. I have now restored to the latest version. I noticed the gain on the 1.58 code is considerably higher than on the latest code anyway. The IIr trick doesn't make a difference to this. I understand other people don't have this problem, so what is it that makes my K3 unique? I have the following filters: slot 1 - empty awaiting KFL3B-FM; FL1 BW = 0, FL1 FRQ = 0, FL1 GN = 0, FL1 ON = NO slot 2: KFL3A-6K; FL2 BW = 6.00, FL2 FRQ = 0, FL2 GN = 4db, FL2 ON = YES slot 3 - KFL3A-2.8K; FL3 BW = 2.80, FL3 FRQ = 0, FL3 GN = 4db, FL3 ON = YES slot 4 - KFL3A-1.8K; FL4 BW = 1.80, FL4 FRQ = 0, FL4 GN = 4db, FL4 ON = YES slot 5 - KFL3A-400; FL5 BW = 0.40, FL5 FRQ = 0, FL5 GN = 4db, FL5 ON = YES With the following options: KAT3, KPA3, KBPF3, KXV3, KTCx03-01 No mods yet. You'll note this problem occurs below 550Hz, but that I have the 400Hz filter installed and it does switch filters at the correct point. So suggestions anyone? 73 de M0XDF, K3 #174 -- Ok, so what's the speed of Dark? ___ 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 #993
Ordered Dec 21, received 5/30/2008. Assembled and running 5/31/2008. Ser #993 -- View this message in context: http://www.nabble.com/K3--993-tp17636237p17636237.html Sent from the Elecraft mailing list archive at Nabble.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] Loss of Gain below 550Hz filter width - firmware problem?
David Ferrington, M0XDF wrote: You may remember I have a problem with my K3 whereby dropping the filter width below 550Hz means I loose almost all AF gain. So suggestions anyone? Does turning off RX EQ help? -- 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
Re: [Elecraft] [K3] Loss of Gain below 550Hz filter width - firmware problem?
both Rx Tx EQ have been left flat - but if you mean taping the AFX key, it makes no difference. Just to be sure, there isn't another config option or switch I've missed, is there? -- If all is not lost, where is it? On 4 Jun 2008, at 01:23, Vic K2VCO wrote: David Ferrington, M0XDF wrote: You may remember I have a problem with my K3 whereby dropping the filter width below 550Hz means I loose almost all AF gain. So suggestions anyone? Does turning off RX EQ 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 SN#000995 delivered today
I wonder who got # 666? :) 73, Tony W7GO Richard S. Lindzen wrote: I had never thought about the quality of a serial number, but I suppose having serial number 911 should give me pause. Dick, KA1SA At 05:07 PM 6/3/2008, Bob W9RFS wrote: I ordered my K3/100 kit on Dec. 24TH, 2007. I received the FM, AM and 2.8 filters. Backordered items: DVR, 2ND RX, 400Hz 8 pole. 995 is a real cool number and I'm a happy guy! Bob W9RFS -- View this message in context: http://www.nabble.com/K3-SN-000995-delivered-today-tp17633730p17633730.html Sent from the Elecraft mailing list archive at Nabble.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 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] Loss of Gain below 550Hz filter width - RESOLVED
Looks like this was something I caused many months ago and the data table appears to have been wrong (I'm waiting for Lyle to confirm to me that’s the right description of the cause). I removed all the current firmware from the K3 Firmware folder and forced the Utility to get it all from the server and then forced it to load everything, including the data table. That has fixed it :-) Once again, Elecraft shows its quality in its responses to its customers - even if we do cause them problems now and then :-) 73 de M0XDF, K3 #174 -- We can't solve problems by using the same kind of thinking we used when we created them. -Albert Einstein, physicist, Nobel laureate (1879-1955) On 4 Jun 2008, at 02:23, Lyle Johnson wrote: Hello David! I don't have a 500Hz filter and I did say it worked at a very early version of f/w. And yes I'm loading all the files. I'll try disabling various filters tomorrow. Yes, I just now am getting caught up on the email thread. Since the roofing filter is not being switched between 500 Hz and 550 Hz, it is not likely the problem. At 500 Hz, however, a different IF filter scheme occurs in the DSP. Please reload the DSP data table, using the latest from the server. If you are computer savvy and know where the current DTBL file is located n your computer, please delete it first, so we can be sure the correct DTBL file is safely loaded into your K3. The DTBL changed with release 1.49 of the DSP which is approximately the version of DSP code you started having trouble with (1.48). If this doesn't correct the problem, you may need to perform an EEINIT. Wayne may have some suggestions before you do that, however. 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] K3 useful tip
Some kinds work great--others not so great. The kind that looks kind of shiny, and has a very regular pattern of holes and little squares (which are kind of puffy), doesn't work as well. It slides around more. The best stuff (and the cheapest I think), has a sort of wavy pattern to it, and actually feels a bit thinner. But it sure grabs better! I use it for paddles, and also for setting things on the console in my vehicle. It also works pretty well if you need to set something on the dashboard. Dave W7AQK - Original Message - From: George [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, June 03, 2008 1:08 PM Subject: [Elecraft] K3 useful tip Best non slip I have found is at Wal Mart in the RV section. Comes in a roll. It beats common shelf liner which I tried once. Great to put under CW paddles also. N4ym ___ 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
