Re: [Elecraft] KXV3: (1) RX ANT signal level during TX; (2) spectra at buffered IF output
Wayne, Thank you for your very comprehensive mail, it certainly has put my mind at rest re potential issues involving separate receive antennas into the K3. 73 Stewart G3RXQ On Sun, 3 Feb 2008 14:42:19 -0800, wayne burdick wrote: Hi all, I'll address both of these issues. 1. RX ANT input signal handling during TX The KXV3's ANT IN jack includes a carrier-operated relay circuit (COR). If the COR kicks in too soon, they relay will switch off/on during keying. So its threshold is set high. It will still serve its primary function, which is to protect the transceiver when unsafe signal levels are present, such as when the RX antenna is in the near field of a KW transmit signal, or when a transmitter is accidentally connected to this port. This leaves a gray zone where the COR doesn't kick in, but the transmit signal may still be very high. High-power contest stations sometimes use additional external T/R switching if they can't avoid the use of closely-coupled receive and transmit antennas. We recently to a close look at this gray zone, and found that we could make an RX ANT jack on steroids by adding two more diode isolation sections. The resulting parts count is considerably higher, but we feel that the added protection during transmit would be worthwhile. So this change will be included in production units (once we use up our present supply of assembled KXV3 modules). Meanwhile, if your antenna configuration and power level warrant this higher degree of isolation, and you already have a KXV3, you can modify it. We're designing a small add-on board to make this easier. It will be supplied free of charge, on request. This unit has not yet been assigned an Elecraft part number, and isn't available yet, so PLEASE don't request it until we announce the details. 2. Buffered I.F. output spectra The pick-off point for the K3's buffered I.F. output -- right at the output of the 1st mixer's post-amp stage -- was selected to give the widest possible bandwidth. Thus there is no filtering of any kind from here to the BNC jack on the KXV3. This creates the opportunity to do *very* wide spectral sweeps, if required -- limited only by the bandwidth of the K3's band-pass filters. As some (armed with spectrum analyzers) have noted, this output signal includes the usual spectra one would expect from a high-level mixer. (And it *is* a very high-level mixer.) A mixer's output includes a broad range of products relating to the sum and difference of its inputs (RF and LO). It also includes products derived from harmonics of the sum and difference, etc. Collectively, these will appear as a comb pattern on an analyzer. This is why the mixer must be followed by band-pass filtering. (In transmit mode this function is performed by the K3's narrow ham-band band-pass filters; in receive mode, by the I.F. crystal filter and DSP filtering.) But the buffered I.F. output is at a different point in the signal chain. So any filtering needed for a panadapter must be included either in the panadapter itself, or in series with it. Some panadapters will require no filtering at all, while some will need various degress of L-C filtering (the L-C filter used on our I.F. noise blanker is a good starting point). If you were only interested in a narrow band sweep, you could use a ceramic or crystal filter. Our FM crystal filter, at about 13 kHz wide, would be a good choice here. Excellent shielding should be used, and possibly additional buffering, to prevent re-radiation of 8.215 MHz back into the K3. A related topic is the exact frequency of the buffered I.F. output. It is nominally 8.215 MHz with our 8-pole filters, and typically 0.8 to 0.9 kHz lower with our 5-pole filters. In addition, the portion of this passband actually present at the audio output is determined by the DSP controls (SHIFT, WIDTH, etc.). We can work with panadapter suppliers to provide this data via the RS232 port, and of course any future Elecraft panadapter would also have this information available. I'll be adding this subject to the Owner's Manual. If you're interfacing a panadapter to the K3 and have any further questions, feel free to e-mail me directly. 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 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] OT: new concept/tool for cw DXing and contesting.
There may have been another article... but the one Jim describes is indeed QST May 1953 page 58. Logging on an IBM punch-card machine:-) 73, Bill N2BC - Original Message - From: Stephen Brandt [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, February 03, 2008 6:50 PM Subject: Re: [Elecraft] OT: new concept/tool for cw DXing and contesting. I believe a similar article appeared in QST in the late 1960's. Steve Brandt N7VS ex: WB6VVS, WN6QYP Portland, Oregon Some time back, W3FQB (SK) wrote a story called The Man Who Broke The Bank about a techno-ham who built a fully automated SS station and proceeded to make an incredible score. The computer did everything - tuned across all the bands looking for new ones, called CQ, made the QSOs, kept the log, decided where the best points-rate could be found, etc. He just sat and watched it go, and occasionally keyed it manually just to have something to do. The article was in QST for May, 1953. 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft 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 FSK RTTY [OT]
Ubuntu is a masterpiece of simplicity - I was amazed at how simple it is to install. Simon Brown, HB9DRV - Original Message - From: VE3NFK [EMAIL PROTECTED] Just an OT note - I am waiting for my K3 - been happy with Navigator for 10? months... AND have it working in Ubuntu Linux - including Simon's PSK31Deluxe under Wine... ___ 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 split mode
setting and tune for callers with a wide setting. If you are as accustomed to doing this as I was with my TS-930S, it's *almost* as good as having a Sub receiver. 73, Bill W4ZV Agreed, Bill. On other transceivers, I really do not need a second Rx as long as separate b/w can be assigned to each VFO. I think a good op can manipulate the VFOs every bit as effectively as one with two Rx -- and I am by no means a great DX op. This feature was a real benefit with the Ten Tec Omni VI/VI+ that the current Omni VII lacks but should be incorporated in a forthcoming firmware update. Without this ability, operating DX-split without the second Rx is a pretty painful experience. I am pleased to hear this is already part of the K3 feature set. Paul, W9AC ___ 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 as mobile
How are K2's as mobile rigs? I am considering putting one in a car with a High Sierra antenna. Mike AI4NS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 and split mode
W9AC: Agreed, Bill. On other transceivers, I really do not need a second Rx as long as separate b/w can be assigned to each VFO. I think a good op can manipulate the VFOs every bit as effectively as one with two Rx -- and I am by no means a great DX op. You can also lock VFO A independently of B so that you don't accidentally move off the DX station. If I recall correctly, the TS-930S would lock both A and B when you did this. Also you can have different roofing filters on A and B (which track the WIDTH setting of the DSP), so you can listen on VFO A for the DX station with a 200 Hz filter and tune the pileup with the 2.7k filter. If I recall correctly the K2 worked similarly...and much of the K2's excellent ergonomic legacy is carried over to the K3. It's so nice to have a rig designed by people who actually use it and who are very receptive to user inputs. 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] 160 mtr on K2 question
Ed, One possible explanation for what you are experiencing is a narrow bandwidth in your receiving antenna. My HF-2V with 160m kit and top-loading is only good for about 20 KHz bandwidth. Large excursions away from the antenna resonant point yield similar results for me on both my K2 and Omni 6. 73 Chuck Guenther NI0C K2/10 s/n 5853 ___ 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 True RS-232 and USB to Serial Adapters
I haven't seen it mentioned, but if you have a standard tower computer, there are RS-232 PCI cards available which give you 2 or 4 true serial ports, and they are pretty cheap. My Ham Station computer is a Shuttle about the size of a shoe box, which came with one serial port. I added a card for two more serial ports and it also has two USB ports rear and two on the front, as well as a 1 Gigabit Ethernet card on board. All the connectivity you could need. Vy 73, Bob WU5T/DJ0MBC No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.19/1257 - Release Date: 03-Feb-08 17:49 ___ 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 split mode
The one thing I would like is to be able to flip which knob controls VFOB. So I can tune the QSX freq with the larger knob. I don't want to change anything else around that - that is, I want to keep VFOA as A and B as B and transmit on B freq. Yes, I know I can flip A/B, tune and then flip back, but I'd prefer not to. However, it's something possibly for the future and I don't want it to detract from all the other work Wayne/Eric, et,al are doing. On 4/2/08 17:18, Bill Tippett [EMAIL PROTECTED] sent: W9AC: Agreed, Bill. On other transceivers, I really do not need a second Rx as long as separate b/w can be assigned to each VFO. I think a good op can manipulate the VFOs every bit as effectively as one with two Rx -- and I am by no means a great DX op. You can also lock VFO A independently of B so that you don't accidentally move off the DX station. If I recall correctly, the TS-930S would lock both A and B when you did this. Also you can have different roofing filters on A and B (which track the WIDTH setting of the DSP), so you can listen on VFO A for the DX station with a 200 Hz filter and tune the pileup with the 2.7k filter. If I recall correctly the K2 worked similarly...and much of the K2's excellent ergonomic legacy is carried over to the K3. It's so nice to have a rig designed by people who actually use it and who are very receptive to user inputs. -- He who asks is a fool for five minutes, but he who does not ask remains a fool forever. -Chinese proverb ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 160 mtr on K2 question
Recently installed the 160 board on K2 (3349) and tuned up per the directions.I notice that there's a pronounced drop in noise on either end of the band whereas the noise comes up quite a bit at the center of the band. Is this normal receiver operation on 160? Per the tune up directions I get full output at band ends, 1800 and 2000khz and the 75/80-mtr band works as before. many tnx...73 /ed -- View this message in context: http://www.nabble.com/160-mtr-on-K2-question-tp15269012p15269012.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
Fellow Crafters, Let me assure you that the frustration that has built inside your radio souls will melt away almost instantly as you begin the assembly and then the operation of your K3. K3 #316 has come to life after the long 9 month gestation period, and my first opinion of the K3 is of disappointment. Disappointment in the other radios in my shack. Previously I was impressed with the 775DSP and the PRO, and the Field, and OMNI 6+. But, that was before this last weekend when the K3 came to life. First qso was VP6PR, yadayada. . Way too much fun. 73, Mike K5NU K1 #64 K2 #381 K3 #316 ___ 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] Mini-modules: New enclosures
Hi all, While working on a prototype enclosure for the HexKey, I ran into a couple of problems and I am now waiting on some new parts to help out in the effort. While waiting for the new parts (and my K3!), I decided to prototype up an enclosure for the DL1 dummy load and the BL2 balun. I've used both of these in portable/field ops and thought they would be good candidates for housing in an enclosure. You can see some pictures here: http://w8fgu.home.comcast.net/~w8fgu/enclosures.html I haven't come up with pricing info yet. I need to build a couple more and get the timing down - I'm thinking somewhere in the $10 - $15 range. If you are interested in any of these enclosures, please drop me a note. I would like to know if there is enough interest for me to place these into production. I also welcome any and all comments and suggestions regarding the enclosures. Thanks in advance 73, Dave W8FGU ___ 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] OT: cannot get reply from [EMAIL PROTECTED]
Eric, Lisa, problem solved, thank you. 73! de Werner OE9FWV Mike Kasrich schrieb am 3 Feb 2008 um 8:02: They are busy in W6-land. I have received email responses from Lisa with a 2 day turnaround just this last week. Gooc luck. Mike/aj9c Dr. Werner Furlan wrote: hello, if someone from Elecraft staff reads this, I am trying to get an answer from Lisa or someone in the sales department since 2 or 3 weeks, maybe my mails are caught in a spamfilter? No error messages though. I have a question regarding my K3 order. 73! de Werner OE9FWV -- How can you be depressed in a world where a man makes a living selling concrete wildlife? Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 ___ 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 FSK RTTY
Just an OT note - I am waiting for my K3 - been happy with Navigator for 10? months... AND have it working in Ubuntu Linux - including Simon's PSK31Deluxe under Wine... Cheers and 73 John VE3NFK PS - HRD 'mostly' works too - just one error message that sometimes can be ignored - other times stops the program Simon Brown (HB9DRV) wrote: Depends on drivers, good luck with Linux, I assume you have a lot of time to waste. Simon Brown, HB9DRV - Original Message - From: G4ILO [EMAIL PROTECTED] So not a lot, then, except it frees up your existing sound card. It sounds pretty much the same as the RigExpert, which I sold a couple of weeks ago on eBay. It was a nice piece of kit but it was useless under Linux, which I'm the process of migrating to. I guess this box of yours is also Windows-specific. ___ 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/K3-and-FSK-RTTY-tp15232995p15260778.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] K2 FS
K3's on it's way so it's time to sell my K2. This is SN 1309 and has been used in many successful VHF/UHF contests. Consists of: K2 KSB2 K160RX K60XV KNB2 KDSP2 KAT2 KIO2 KBT2 Email off list to discuss. Thanks, Phil K3TUF ___ 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 - internal TX PWR meter accuracy?
Hi Glenn: Without claiming accuracy to any traceable standard, I just fired up my trusty old 100 MHz HP 1740A O-scope, calibrated the display to the built-in 1 volt calibration standard, and measured the P-P voltage into a 51 ohm resistance (no measurable reactance). At 100 watts commanded and indicated on the K3 (#202), I measured about 202v P-P. That translates to about 100 watts. With the K3 set for 120 watts, I measured about 220v P-P, which is about 119 watts. With the K3 set for 90 watts, I measure about 192v P-P which is about 90 watts. So... I would say that the K3 does a pretty good job in producing the commanded power. 73, Ken K3IU Portsmouth, RI ON4WIX wrote: Hi group, I was just wondering if anyone has done TX power measurements with precision measuring gear and compared these measurements against the K3's internal indication of the output power? Just curious here. The K3/100 is advertized as a 100W transceiver (or should that be 100W class?) and the power control on my unit goes up to 120W. With the PWR cranked up to 120W the K3's bargraph meter does indeed show 120W output. The only external measuring tool I have is one of those cross-needle meter (Daiwa CN801H) which I know displays the output power a few % low into a known good dummy load but I've never been in a position to accurately determine just *how much* low. The Daiwa's spec sheet mentions 10% FS excursion error so that would translate into a 20W uncertainty at the 200W meter scale setting. Any input would be much appreciated. I know that there will be no discernible difference on the receiving end when going from 90W to 110W but as they say... inquiring minds want to know. 73 es tnx Glenn ON4WIX K2/100 #5361 K3/100 #192 ___ 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: Groundhog Day
Kevin, You obviously haven't heard about Whiarton Willie who did not see his shadow the other day, spring will be here soon, at least here in southern Ontario. 73, Bob VE3XM ___ 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 split mode
Hmmm - didn't realise I could tune while doing that - don't find it very convenient, but it works. Thanks Bill. On 4/2/08 19:36, Bill W4ZV [EMAIL PROTECTED] sent: What I described previously allows you to tune QSX with the large knob. Touch REV and, while depressing it, tune the large knob to the QSX frequency. Release REV it to listen on the DX frequency. With a little practice you can do this with one hand. I normally use my left index finger to depress REV and my pinky tunes the large VFO knob. Been doing this since 1984 with the TS-930S so it's second nature to me now. -- When I am working on a problem I never think about beauty. I only think about how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong. -R. Buckminster Fuller, engineer, designer, and architect (1895-1983) ___ 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: New concept/tool for CW dxing
I guess this is a tool for those who either only had to pass a 5 wpm CW test or none at all. Now they can QRM the low end CW portions of the bands by pushing a button and letting their radio send 599 or some other programmed response that they couldn't do with a key. It's rather sad. 73 es gud dx de Dave N8AG Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping ___ 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 - internal TX PWR meter accuracy?
ON4WIX wrote: I was just wondering if anyone has done TX power measurements with precision measuring gear and compared these measurements against the K3's internal indication of the output power? Using N8LP's LP-100 (factory calibration) after calibrating at 50W per the manual: BandMax Power (set to 120W) 160 110.0 80111.7 60112.8 40105.0 30111.9 20111,7 17110.5 15109.7 12111.1 10106.9 6 109.7 Power accuracy is better than 5% at any frequency from ~1W to maximum, 3% typical with NIST traceable factory calibration http://telepostinc.com/lp100.html 73, Bill W4ZV -- View this message in context: http://www.nabble.com/K3---internal-TX-PWR-meter-accuracy--tp15274707p15275910.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 split mode
M0XDF wrote: The one thing I would like is to be able to flip which knob controls VFOB. So I can tune the QSX freq with the larger knob. I don't want to change anything else around that - that is, I want to keep VFOA as A and B as B and transmit on B freq. Yes, I know I can flip A/B, tune and then flip back, but I'd prefer not to. What I described previously allows you to tune QSX with the large knob. Touch REV and, while depressing it, tune the large knob to the QSX frequency. Release REV it to listen on the DX frequency. With a little practice you can do this with one hand. I normally use my left index finger to depress REV and my pinky tunes the large VFO knob. Been doing this since 1984 with the TS-930S so it's second nature to me now. 73, Bill -- View this message in context: http://www.nabble.com/K3-and-split-mode-tp15272817p15275747.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 split mode
K3KO wrote: What I don't see is any way to listen on VFO B (at all or only) when one is trying to find the station the DX is working by tuning VFO B. Kenwoods and ICOM's have a press and hold button while tuning to do this. Upon release the RX goes back to VFOA. You depress REV (between A/B and AB) and VFO B is momentarily displayed (as long as you hold REV). This is similar in function to the T-F SET button on the TS-930S if you've ever used that. One nice feature is that you can set different bandwidths for A and B so you can listen to the DX with a narrow setting and tune for callers with a wide setting. If you are as accustomed to doing this as I was with my TS-930S, it's *almost* as good as having a Sub receiver. 73, Bill W4ZV -- View this message in context: http://www.nabble.com/K3-and-split-mode-tp15268871p15268989.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 as mobile
The K2 is a fine mobile transceiver. The sensitive receiver helps when using a marginal antenna (all HF mobile antennas are marginal IMHO) I built one K2/100 for a ham who used it mobile in an 18 wheeler and he had no trouble with it. I am not really certain why you are concerned. In most cases, the physical space in the vehicle is the major consideration. 73, Don W3FPR Mike Short wrote: How are K2's as mobile rigs? I am considering putting one in a car with a High Sierra antenna. Mike AI4NS ___ 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] 160 mtr on K2 question
Hi Ed Yes, both my K2s behave the same way. Here all my activity is below about 1925 kHz, so I peak my tuning somewhere areound 1850. Hope to work you on the band. 73, Bob N6WG - Original Message - From: k6sdw [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 04, 2008 7:48 AM Subject: [Elecraft] 160 mtr on K2 question Recently installed the 160 board on K2 (3349) and tuned up per the directions.I notice that there's a pronounced drop in noise on either end of the band whereas the noise comes up quite a bit at the center of the band. Is this normal receiver operation on 160? Per the tune up directions I get full output at band ends, 1800 and 2000khz and the 75/80-mtr band works as before. many tnx...73 /ed -- View this message in context: http://www.nabble.com/160-mtr-on-K2-question-tp15269012p15269012.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] KXV3: (1) RX ANT signal level during TX
Date: Mon, 4 Feb 2008 08:31:09 GMT From: Stewart Baker [EMAIL PROTECTED] Subject: Re: [Elecraft] KXV3: (1) RX ANT signal level during TX;(2) spectra at buffered IF output To: wayne burdick [EMAIL PROTECTED], Elecraft Reflector elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=US-ASCII Wayne, Thank you for your very comprehensive mail, it certainly has put my mind at rest re potential issues involving separate receive antennas into the K3. Ditto to that comment. I was seriously thinking of canceling the KXV3 from my order but all appears well.. Garry/Ve7ajj ___ 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] More power for K2
Kevin et al, Kevin Cozens schrieb am 3 Feb 2008 um 17:38: Again, thanks for all your answers. Now, I need to do one thing - buy a 3.5AH battery and come back to this group again for more details of the battery. If you could get double the power out with the same battery voltage you would be increasing your current draw from the battery by an equal factor. You would get less operating time on the 3.5AH battery when running at the higher power than you would from a 2.9AH batter when running at the standard maximum power level. I agree with your calculation if you use the same battery chemistry. I you compare a lead acid battery with a Nicad or NiMh battery it is probably a different thing. You should never deep discharge a lead acid battery. They don't live very long if you do it. On the other side NiCad should not be charged if they are not discharged. (memory effect) So the real-live capacity of a battery is not written on the label in my experience - it depends on many factors like current draw, temperature, battery chemistry, quality of the build 73! de Werner OE9FWV -- Sometimes I think I understand everything, then I regain consciousness. Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 ___ 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 - internal TX PWR meter accuracy?
Hi group, I was just wondering if anyone has done TX power measurements with precision measuring gear and compared these measurements against the K3's internal indication of the output power? Just curious here. The K3/100 is advertized as a 100W transceiver (or should that be 100W class?) and the power control on my unit goes up to 120W. With the PWR cranked up to 120W the K3's bargraph meter does indeed show 120W output. The only external measuring tool I have is one of those cross-needle meter (Daiwa CN801H) which I know displays the output power a few % low into a known good dummy load but I've never been in a position to accurately determine just *how much* low. The Daiwa's spec sheet mentions 10% FS excursion error so that would translate into a 20W uncertainty at the 200W meter scale setting. Any input would be much appreciated. I know that there will be no discernible difference on the receiving end when going from 90W to 110W but as they say... inquiring minds want to know. 73 es tnx Glenn ON4WIX K2/100 #5361 K3/100 #192 ___ 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] Wrong Filter Question - 8 pole vs. 5 Pole Filters
Lee Buller wrote: Which is better a 5 pole filter or an 8 pole filter. Supposedly the 8 pole would have sharper skirtsand for only 20 more bucks...wellI would like to know the difference between the two filters. Is it worth the 20 bucks? I am sure it is, but as you all know there is some economic rumbling and need to watch the pennies. This question seems to be asked at least once per week...maybe we should learn how to use search engines! http://groups.yahoo.com/group/Elecraft_K3/message/901 (earlier today) 73, Bill Re: K3 CW Filters Performance --- In [EMAIL PROTECTED], John Rogers [EMAIL PROTECTED] wrote: Has anyone compared the similar bandwidth 5 pole and 8 pole Ist IF filters for weak CW readability under normal and noisy conditions? ie can anyone comment on practical difference between the 500 and 400, and 200 and 250Hz filters for this usage? Hi John, Remember that in a rig like the K3 or Orion, roofing filters do NOT determine ultimate selectivity. Their purpose is mainly to prevent strong signals from entering the IF chain and causing IMD or BDR problems. W2VJN of Inrad says the main area of interest for roofing filters is only about -30 dB down on the skirts from the center frequency, so there is really not a significant difference between 5-pole and 8-pole (remember that all of Orion's filters are 4-pole). In other words shape factor and ultimate selectivity are not critical for roofing filters. What you are really asking is what the DSP filters look like, which actually determine ultimate selectivity. I have not seen any measurements of these yet but I'm sure someone will eventually post measurements of them. Here's a simple block diagram to remember: Antenna 1st IF roofing filters 2nd IF DSP filters Roofing filters prevent IMD BDR from entering IF chain DSP filters provide ultimate selectivity More info on roofing filters here: http://www.zerobeat.net/mediawiki/index.php/K3_Roofing_Filters 5-pole plots by OH9NB here: http://groups.yahoo.com/group/Elecraft_K3/files/ 8-pole plots by Inrad here: http://www.elecraft.com/K3/K3_8_pole_plots.htm 73, Bill W4ZV -- View this message in context: http://www.nabble.com/Wrong-Filter-Question---8-pole-vs.-5-Pole-Filters-tp15278060p15278224.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 SSB average power output
With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts. K3 is a great radio but not in the transmit SSB mode. If Mic gain is adjusted properly so there is no distortion than the average power is even lower. I'm sure that this could be improved in firmware. If not than K3 would not be that good in the contest and Dx -ing on SSB Anybody has the same experience? I remember that Toby from Bavarian DX Club and some other guy was talking about SSB audio. I'm not complaining but I would like to have SSB signal comparable to radios like TS850, Ft1000D and so on. I hope that Elecraft will put this on their agenda. Beside that, K3 is superb TRX-the best. Mark Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ 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: Heating and ventilation question?
I just recently prototyped a Lexan enclosure for the BL2 and was asked by others on the list how much heat could be dissipated by the BL2 and if ventilation was necessary. I figured I would post to this wonderful list and solicit some fine commentary on the matter. Here is a link to some pictures of the enclosure: http://w8fgu.home.comcast.net/~w8fgu/bl2encl.html So what do you think - is ventilation necessary? Thanks 73, Dave W8FGU ___ 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] 8 Pole vs 5 Pole Filters
Most of us who have K3s made a decision one way or the other, and generally don't have both the 2.7 and 2.8 KHz filters to compare. I chose 8-pole filters. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lee Buller Sent: Monday, February 04, 2008 12:50 PM To: Elecraft Reflector Subject: [Elecraft] 8 Pole vs 5 Pole Filters For those of you who have K3s right now. What is the real difference between the 5 pole and the 8 pole filters? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ 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] 8 Pole vs 5 Pole Filters
For those of you who have K3s right now. What is the real difference between the 5 pole and the 8 pole filters? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 8 Pole vs 5 Pole Filters
My only rationale in choosing the 8-pole over the 5-pole filters is it costs more, therefore it's (likely) to be better. A very scientifically based decision. The cost difference isn't worth the wondering; Would I have been just as satisfied with the lesser-cost 5-pole versions? (:-)) I have 6 kHz, 2.8 kHz, 1.8 kHz, 1.0 kHz and 400 Hz 8-pole filters and I'm happy. 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] 12VDC Rear Panel Output
Just setting things up for (hopefully) my soon to arrive K3 and have a quick question on the 12VDC output on the rear panel. Is this switchable in the menu system, and if so can it be switched on a per band basis? I have a 80/40m vertical antenna that has a relay switched counterpoise, and this would be great to automate the switching when I go from 40m to 80m !! I note the output is labelled as switchable, but when I searched the PDF manual I couldn't find any details on it! Thanks David, VK2NU -- View this message in context: http://www.nabble.com/12VDC-Rear-Panel-Output-tp15279521p15279521.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] 12VDC Rear Panel Output
No its not, I don't think you can switch it in any way. I 'think' switchable means it goes off when the K3 does - but happy to be corrected. I can't see a menu or config option to switch it. 73 de M0XDF / K3 #174 On 4/2/08 22:46, Vk2NU [EMAIL PROTECTED] sent: Just setting things up for (hopefully) my soon to arrive K3 and have a quick question on the 12VDC output on the rear panel. Is this switchable in the menu system, and if so can it be switched on a per band basis? I have a 80/40m vertical antenna that has a relay switched counterpoise, and this would be great to automate the switching when I go from 40m to 80m !! I note the output is labelled as switchable, but when I searched the PDF manual I couldn't find any details on it! Thanks David, VK2NU -- Soon silence will have passed into legend. Man has turned his back on silence. Day after day he invents machines and devices that increase noise and distract humanity from the essence of life, contemplation, meditation. Tooting, howling, screeching, booming, crashing, whistling, grinding, and trilling bolster his ego. -Jean Arp, artist and poet (1887-1948) ___ 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] Attn: Bob Converse - WO3E
Bob, several e-mail attempts to you have been rejected by your server. Please reply via [EMAIL PROTECTED] 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
RE: [Elecraft] K2 - hang up problem
Well, I got my K2 working again. Don't understand why, but it is working fine. My K2 sits on a XV50. I had unplugged the 12V to the XV50 to use the 12V line for the K3. It turns out if I unplug the 12V line to the XV50 I also need to disconnect the RS-232 line between the K2 and XV50, even though the XV50 is not ON. Then the K2 works fine on SSB (it always worked fine on CW). If the 12V power is plugged into the XV50 the RS232 line does not matter whether it is plugged into either the K2 or XV50 or both. But if the 12V power is removed from the XV50 the RS232 must be removed so the K2 works on SSB. Maybe over a beer I need to look at the schematics to see what this is all about. As always, ideas are welcome. Tnx for all the suggestions. Amazing how much help was offered. How about those Giants! 73, N2TK, Tony _ From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Saturday, February 02, 2008 5:50 PM To: PA3HGC Cc: N2TK Subject: Re: [Elecraft] K2 - hang up problem Wow, two with the same problem at the same time - that is unusual. You guys will have to take some measurements to guide me in the right direction - right now it seems like the problem is on the KSB2 board, but we need to confirm or deny that. Open the K2 top cover - if a KPA100, lay it on a box to the right of the K2, but leave it connected. Receive with the OP1 filter for now. Then try to create the problem - when it occurs, it is time to take some measurements. Is RXS (U1 pin 21) high (5 to 6 volts)? It should be. Are TXS (U1 pin 15), TXC (U1 pin12), and RXC (U1 pin 22) all low (near zero volts). They should be. If those signals are in the correct state for SSB (or RTTY) receive with the OP1 filter, then the firmware chip on the KSB2 board is doing what it is supposed to. If not, then there is some firmware fault or some signals are not getting from the K2 to the KSB2 board. If the signals are correct and the failure persists, then the task is to follow those signals into the diode switches for the filter and try to find what is bad. It could be an unsoldered or poorly soldered connection. You may want to reflow the solder on all the diodes near the filter and the R-paks too. 73, Don W3FPR PA3HGC wrote: Don, Tony, Get an error message when posting to the Elecraft reflector (Your IP is in nl, rejected based on geographical location), so I try to approach you directly. Since last week I have the same problem with my K2 # 703 on all bands, i.e. receive and transmit in CW is perfect, receive in SSB and data modes is okay, only if I push the MH2's PTT key in LSB, USB or data mode and let the K2 go back to receive, the receive signals are much weaker than before (typically from S9 before keying the PTT to S1 afterwards). I can only get back to normal reception by switching bands or by switching the K2 off/on. My control board firmware is 2.03d, and the KSB2 firmware is 1.07. I have already resoldered the sockets of the firmware chips on the control board and the KSB2 adapter and reseated U6 and U1, but the problem persists with both the 10W K2 and the KPA100/KAT100-2 (in EC2 enclosure) attached. Thanks and 73, Gunter PA3HGC W3FPR wrote: Try reseating the firmware chip on the KSB2 board, and if that does not help we can begin looking at various voltages on the KSB2. The signals that switch the filter are RXS, TXS, TXC and RXC. 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
[Elecraft] K3 SSB average power output
Hmmm. If I have my K3 set to 5.0 watts, my external watter shows ~3.5 watts average and ~4.0 watts peak. Changing the pitch of my voice (as expected) also changes the power. Those measurements are with a long HELLO. At 100watts set point, PEP = ~ 70watts and Ave = ~ 60 watts. No, it's not like cranking in the PROCESSOR on my TS940 (which really can hang it up there), but it's not 4 watts. Obviously, YMMV 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] 8 Pole vs 5 Pole Filters
Hi Ken, yes, I have same, except for the 1kHz, which I don't have. I'll see what variable filters are like and since I'm still working on my Morse, don't yet feel the need for the 1kHz. I choose those on crafter suggestions and your rational too. 73 de M0XDF / K3 #174 On 4/2/08 21:10, Ken Kopp [EMAIL PROTECTED] sent: My only rationale in choosing the 8-pole over the 5-pole filters is it costs more, therefore it's (likely) to be better. A very scientifically based decision. The cost difference isn't worth the wondering; Would I have been just as satisfied with the lesser-cost 5-pole versions? (:-)) I have 6 kHz, 2.8 kHz, 1.8 kHz, 1.0 kHz and 400 Hz 8-pole filters and I'm happy. 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [EMAIL PROTECTED] -- Life is an eternal challenge, a variant on Maeterlinck's theme that the Bluebird of happiness is by the side of each and everyone of us, always within reach, yet, if pursued to catch and possess is beyond our grasp. - Donald Campbell, CBE. (1921-1967) ___ 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 - internal TX PWR meter accuracy?
My K3's power reading matches ... within Bird's published %/HF element accuracy ... that of my Bird(s). Ken Kopp - K0PP K3 #56 K2 #5665 [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] XV144 - wanted
Looking for an XV144 for my K3. Won't need my XV50 anymore so can work out a trade if interested. If non available will order a new one from Elecraft. 73, N2TK, Tony ___ 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 SSB Audio Issue
Hi All, I have had something rather strange occur a couple of times. While I don't get on SSB very much, I have been chatting with my friend Jay, W5JAY, on 40 meter SSB on occasion. Typically he has indicated that my audio sounds excellent. However, a couple of times he noted that my modulation went south, and sounded like I was transmitting through a narrower filter. This occured most recently the other evening. I had not changed any settings that I know of. However, the fix seemed to be to go to the TX Filter setting (which was set for the 2.7 khz filter), and simply rotate the dial to another filter and then back to the 2.7 khz setting. That's it! The problem was solved. My audio returned to its former excellent state. Anyone else had such an occurance? Dave W7AQK ___ 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 SSB average power output
Hello Mark, From what you describe, something is very wrong with either your K3 or your external watt meter setup. How much power are you reading with your external watt meter when the K3 is set to 100 Watts in CW Mode? Is your watt meter a peak reading meter (I assume not)? I am using an external Telepost LP-100 Digital Vector Watt Meter. With my K3 in SSB mode (with power set to 100 watts and zero compression) I'm reading 106 watts peak and 40 watts average power into a 50 ohm dummy load. There is no distortion heard in either the K3 Monitor or in my nearby IC-7800 receiver. If you are only getting 4 watts output average then something is very wrong. Perhaps you can describe your setup for us. I assume you completed all the calibration procedures, transmitter gain calibration, etc.? What you describe is certainly not normal from what I am measuring with my K3 and watt meter set-up. Best 73, Frank - W6NEK K3 #312 - Original Message - From: mark roz [EMAIL PROTECTED] To: Elecraft elecraft@mailman.qth.net Sent: Monday, February 04, 2008 1:23 PM Subject: [Elecraft] K3 SSB average power output With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts. K3 is a great radio but not in the transmit SSB mode. If Mic gain is adjusted properly so there is no distortion than the average power is even lower. I'm sure that this could be improved in firmware. If not than K3 would not be that good in the contest and Dx -ing on SSB Anybody has the same experience? I remember that Toby from Bavarian DX Club and some other guy was talking about SSB audio. I'm not complaining but I would like to have SSB signal comparable to radios like TS850, Ft1000D and so on. I hope that Elecraft will put this on their agenda. Beside that, K3 is superb TRX-the best. Mark Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ 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 SSB average power output
With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts. K3 is a great radio but not in the transmit SSB mode. If Mic gain is adjusted properly so there is no distortion than the average power is even lower. I'm sure that this could be improved in firmware. If not than K3 would not be that good in the contest and Dx -ing on SSB Anybody has the same experience? I remember that Toby from Bavarian DX Club and some other guy was talking about SSB audio. I'm not complaining but I would like to have SSB signal comparable to radios like TS850, Ft1000D and so on. I hope that Elecraft will put this on their agenda. Beside that, K3 is superb TRX-the best. Mark Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ 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 SSB average power output
Oh, but this IS normal. You need a peak reading wattmeter. If anyone ever uses an average reading power meter to try to figure out the talk power of a radio, I guarantee you that they are putting out crude. Even with the K3 compressor set up more than it should, your peak to average ratio is very high. I have the Autek (sp?) peak reading meter in line, and it shows exactly what is going on. On SSB, I get 100 + watts, as I talk. On CW, I get what I dialed into the K3, and on PSK, I get around 10, based upon the audio gain settings. PLEASE! Never ever use an average reading wattmeter for anything other than key down observations. Invest in a peak reading meter. I like the Autek because it has two meters, peak reading forward power, and peak reading, auto adjusted SWR reading. One has to do nothing but look at this meter to tell what is going on. tom k8tb mark roz wrote: With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. ___ 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 SSB average power output
Wow. Then with my K3/10 (still on order) I'll have an average power in the milliwatts. Too bad I didn't order the KPA3 before the price went up. Does this situation affect the K3's output capability on PSK31? Dave W5DHM On Feb 4, 2008 4:23 PM, mark roz [EMAIL PROTECTED] wrote: With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts ___ 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 SSB average power output
Mark - Something is VERY wrong here! My K3/100 does rated pep on an LP-100 with no discernable distortion, excellent average power with moderate compression and outstanding audio reports! Email [EMAIL PROTECTED] and be ready to re-assemble. This is NOT normal! 73 -- Don N4HH K3/100 #83 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mark roz Sent: Monday, February 04, 2008 4:23 PM To: Elecraft Subject: [Elecraft] K3 SSB average power output With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts. K3 is a great radio but not in the transmit SSB mode. If Mic gain is adjusted properly so there is no distortion than the average power is even lower. I'm sure that this could be improved in firmware. If not than K3 would not be that good in the contest and Dx -ing on SSB Anybody has the same experience? I remember that Toby from Bavarian DX Club and some other guy was talking about SSB audio. I'm not complaining but I would like to have SSB signal comparable to radios like TS850, Ft1000D and so on. I hope that Elecraft will put this on their agenda. Beside that, K3 is superb TRX-the best. Mark Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.19/1258 - Release Date: 2/4/2008 10:10 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 SSB average power output
Hallo Mark, Are you sure that something else might not be wrong or configured incorrectly? Are you sure that your measurement of the power levels is correct? There may be some interaction between the WMTR xxx and the TXG VCE configurations, leading to low SSB output, but I really, really am not sure about this. This evening, while experimenting with TXG VCE gain values, the K3 appeared to loose its WMTR HP and/or TX Gain calibrations in SSB a couple of times. I ended up with a TXG VCE of +1.0dB. While Ben, DL6RAI, and I do feel that the speech processing is not quite as effective as we would like, and that the average power level is a bit on the low side, we have not seen anything like what you are reporting. My K3 can and does produce a good quality SSB signal, which could be improved (made more effective) for use in some special situations. A clean rag chew modulation, will always show a lowish average power because a moderate level of AF gain combined with low levels of processing, will cause fairly little change to the natural dynamics of speech. The K3, imho, is very good at this, i.e. clean, low distortion modulation with an almost natural sounding dynamic range. Natural sounding modulation is not always what you are looking for in a contest situation. If I think in terms of an analog system, I'd really like to really overdrive the K3 (gain and processing) and then carefully back off to the point where the level of distortion becomes acceptable, while maintaining a fairly high average power. The K3 (almost) does not allow itself be overdriven, which most of time is a good thing. This does not, of course, have anything to do with the peak power level, which would be the same in the above scenarios. I would like to point out two final things: We in Bavaria are still learning about this radio, so we may be doing the K3 an injustice, and because things like speech processing are done with software in the K3, the firmware can improve these kinds of aspects. vy 73 de toby PS: We are the Bavarian Contest Club and not the Bavarian DX Club... mark roz wrote: With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Contest or ESSB guys will not like that. With K3 compression to the max average power is about 8 Watts. K3 is a great radio but not in the transmit SSB mode. If Mic gain is adjusted properly so there is no distortion than the average power is even lower. I'm sure that this could be improved in firmware. If not than K3 would not be that good in the contest and Dx -ing on SSB Anybody has the same experience? I remember that Toby from Bavarian DX Club and some other guy was talking about SSB audio. I'm not complaining but I would like to have SSB signal comparable to radios like TS850, Ft1000D and so on. I hope that Elecraft will put this on their agenda. Beside that, K3 is superb TRX-the best. Mark ___ 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
Fwd: Re: [Elecraft] K3 SSB average power output
My mistake. Sorry. I should be more precise. I should point out that I was comparing to FT1000D. Never mind that my meter is showing 4W. Every meter will show different average output power. And yes I have two peak power meters. Am I correct if i say that peak power meter will show let say 100W with 3dB and 20db compression. That tells me nothing about average power and I'm very interested in average power in SSB. That is what makes signal stronger at the receiving side. If we are interested in just peak power than why bother with speech processors. Anyway here is the comparison: FT1000D 7W CMP off 30W CMP ON K3 4W CMP off 20W CMP ON MIC: HC5 and Goldline PRO And yes both TRX peak power was set at 90W. K3 peak power on 20m 90W with TXGN at 3dB. On CW 120W. All what I'm trying to say is that perhaps K3 SSB signal could be made more dynamic. Mark --- K8TB [EMAIL PROTECTED] wrote: Date: Mon, 04 Feb 2008 17:28:29 -0500 From: K8TB [EMAIL PROTECTED] To: mark roz [EMAIL PROTECTED], Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 SSB average power output Oh, but this IS normal. You need a peak reading wattmeter. If anyone ever uses an average reading power meter to try to figure out the talk power of a radio, I guarantee you that they are putting out crude. Even with the K3 compressor set up more than it should, your peak to average ratio is very high. I have the Autek (sp?) peak reading meter in line, and it shows exactly what is going on. On SSB, I get 100 + watts, as I talk. On CW, I get what I dialed into the K3, and on PSK, I get around 10, based upon the audio gain settings. PLEASE! Never ever use an average reading wattmeter for anything other than key down observations. Invest in a peak reading meter. I like the Autek because it has two meters, peak reading forward power, and peak reading, auto adjusted SWR reading. One has to do nothing but look at this meter to tell what is going on. tom k8tb mark roz wrote: With SSB mic level adjusted to the max level (ALC to the max)the average power measured on external meter is only 4 Watts with distorted audio (power output set at 110W). If I use external compressor the average power is still only 4 Watts. This is done with CMP gain at zero. This is not normal. Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping ___ 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] WB3AAL FYBO Report
Hello, Saturday February 2nd was a very interesting day. I went out to one of my spots on the Appalachian Trail in PA to operate the FYBO contest. I got to lot to find it heavily encrusted in ice. I parked the car and very carefully got out and started to get the backpack on. I almost fell 2 times while gearing up. I even had my cramp ons on my boots but they were of very little help. The area of the Appalachian Trail I was at is a very rocky trail, the cramp ons did help a little but hike was still very treacherous. I had very serious doubts if I was going to be on the air at all that day. The hike that usually takes 15 minutes now took 35 minutes. I finally arrived at my operating location. I had to find an area where I could drive a small ground rod into the stony area to support my vertical. After trying for 10 minutes I finally found a spot and got the antenna erected. I finally got on the air about 40 minutes later than I plan to be. But all good things take time. I started out on 40m and found the band had a lot of signals all over the place. Unfortunately they were taking part in the other contest that were on this past weekend. I did make a few QSO's on 40m but I decided to try 20m. I made a lot more contacts there. I did try 15m a couple of times on the top of the hour. I did call CQ for 10 to 15 minutes the three times I was on the band. There were a lot of signals on 15m but down around 21.030 and nothing up in the QRP area. My Log: 40mW8PIG OH 40mNK9G WI 20mN4BP FL 20mKK6MCNM 20mG3RSP England Alan was running 2w. 20mKE4YH FL 20mN1LU/4 FL 20mK0XI MO 20mK4MFFL 20mW5ACMTX 20mAB9CA AL 20mW5ESE TX 20mAD7AN CA 20mW0RW CO 20mKB5FCFOK 20mWA4EWL FL 20mK5GQTX 40mKB8FZYOH 20mAA1IKFL 20mWA5BDU AR I was really surprised to work Alan in England and then an hour and a half later to work California. My operating temperature stayed between 30 and 31'F. There was a good breeze blowing with snow flurries most of the day. When I was calling CQ I was watching about 6 Blue Birds watching me and trying to find out if my ground radials were edible. They were around for about 45 minutes. I also noticed that my body heat was melting the ice around me and I was slowly sinking into the ice. I did have a small portable chair and table. I had to watch that my black coax did not melt down into the ice and freeze when the sun did peek out for about 10 minutes.. This places my Appalachian Trail QSO count at 921 and closing in on the 1,000th QSO from the trail. Thanks to all those that did make a contact with me and sorry to those signals that were too weak for me to pull the out of the QRN. Until the next time I go out on the AT. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 True RS-232 and USB to Serial Adapters
And anyone interested in a PCI Express Multi i/o card pretty cheap with 2 serial ports email me off the board. Jim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob DeHaney Sent: Monday, February 04, 2008 12:51 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 True RS-232 and USB to Serial Adapters I haven't seen it mentioned, but if you have a standard tower computer, there are RS-232 PCI cards available which give you 2 or 4 true serial ports, and they are pretty cheap. My Ham Station computer is a Shuttle about the size of a shoe box, which came with one serial port. I added a card for two more serial ports and it also has two USB ports rear and two on the front, as well as a 1 Gigabit Ethernet card on board. All the connectivity you could need. Vy 73, Bob WU5T/DJ0MBC No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.19/1257 - Release Date: 03-Feb-08 17:49 ___ 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] BL2: Heating and ventilation question?
On Mon, 4 Feb 2008 16:19:50 -0500, you wrote: I just recently prototyped a Lexan enclosure for the BL2 and was asked by others on the list how much heat could be dissipated by the BL2 and if ventilation was necessary. [snip] I'm not an expert, but my gut feeling is yes. You can't be sure that a user won't put 300 watts through the balun, or put 100w through it at a very high SWR. Tom, N5GE - SWOT 3537 - Grid EM12jq They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE ___ 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] Wrong Filter Question - 8 pole vs. 5 Pole Filters
I asked the wrong filter question...or...what was on my mind and how it came out my fingers did not jive. Which is better a 5 pole filter or an 8 pole filter. Supposedly the 8 pole would have sharper skirtsand for only 20 more bucks...wellI would like to know the difference between the two filters. Is it worth the 20 bucks? I am sure it is, but as you all know there is some economic rumbling and need to watch the pennies. This is not about costit is about what is the difference between the two types of filters. Lee - k0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] #323 Has Arrived!!!
K3/100 #323 has arrived. Order date 5/8/07 (no deposit). Let the fun begin!! Roy Morris W4WFB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] TEST
just a test ___ 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] test
just a test ___ 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 SSB average power output
N8LP's LP-100 has a function for evaluating Peak to Average performance of speech processors. SSB isn/t of much interest to me until 10 meters comes back so I haven't played with this mode in the LP-100. Larry has a K3 on order and maybe he will compare the K3 speech processor to others when he gets his K3. 73, Bill W4ZV See LP-100 at http://telepostinc.com/ * Peak to Average ratio screen. Allows accurate checking and setting of compression in your speech processor. Peak-to-Average Mode This mode lets you determine the average power in a signal by taking 40,000 samples/second, and compares this to the peak power in the signal. The result is displayed as a ratio in dB. I provide a couple test tones, which are available on my website at http://www.telepostinc.com/Files/two-level-tone-loop3.zip and http://www.telepostinc.com/Files/loud_tone.zip. The loud tone is used to set the maximum power and proper ALC range (with processing OFF). The two-level tone is used to determine the peak-to-average ratio of the output signal. It can be played back on your PC, or converted to mp3 and played on a portable player. It can be played over a speaker into the microphone, or directly into the mic input. The two-level tone provides alternating loud and soft tones with 20 dB difference in level. This tone should provide the following Peak-to-Average ratios vs. effective compression ratio. Compression Ratio Peak-to-Average Ratio 0dB 5.2dB 5dB 5.6dB 10dB 3.6dB 15dB 2.2dB 20dB 0dB I plan more test tones with different characteristics in the future, which is why I decided to keep the display as Peak-to-Average as opposed to Compression, which would only be accurate with one test signal. I will provide additional tables such as the one above with the additional test signals ___ 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 #327 arrives!
K3/10 #327 arrived today in Arlington, VA. Order date 5/15/07 (no deposit). One less in the waiting list! ;) Bob Brown N1CVX Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs ___ 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] Dayton, FDIM Rooms at the QRP Hotel
2008 QRP-ARCI / FISTS Dayton Hamvention rooms! We have 150+ rooms at the Holiday Inn in Fairborn, Ohio, about 17.18 miles from the lovely HARA arena! We will not be using the Homewood Suites because they did not agree with the negotiated price with the Holiday Inn. Again this year we are planning Alternative Activities for the hams wives, spouses, or significant others. Like last year, there will be a day or two of Stitchin' in Dayton - ST1TCH and some shopping trips to local malls, etc. More information will follow. Check the web site www.rooms.qrparci.org and go to the link for the Stitchin' in Dayton. The details, information and room request form are located: www.rooms.qrparci.org FDIM the QRP Awards Banquet: fdim.qrparci.org 73HankK8DD -- QRP Hotel Rooms www.rooms.qrparci.org FDIM May 15, 2008 www.fdim.qrparci.org QRP-ARCI www.qrparci.org Hamvention(R) May 16 - 18, 2008www.hamvention.org -- -- 'Never argue with an idiot. They drag you down to their level then beat you with experience.'-anon - ___ 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] 1st signal
Gotta tell ya! Unpacked the K3 and fired it up on 40cw. FIRST signal received was WT5E running a K3. Now what did I do with the key, 9 mos. ago? Bill Harris w7kxb ___ 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] Wrong Filter Question - 8 pole vs. 5 Pole Filters
I'm guessing that I wouldn't be able to tell the difference, like monster cable for the stereo. Will there ever be an instance when I will say, Boy, if only i had an 8 pole filter; I might have snagged that rare DX station! I doubt it. Actually, if it had been a choice between 8 and 5 in a 500 Hz filter, I might have chosen the 8. But I don't want a 400 Hz filter however many poles it has; I want 500 Hz. This has to do with the fact that in a hypershphere of very high dimensionality nearly all of the volume lies very close to the surface. Just kidding. The filter graphs mean next to nothing to me. I guess when it comes time to sell the rig the 8-pole guys will have an advantage over us filter ignoramuses and cheapskates. Anyhow, the price difference between the is now $40 for me according to the order summary. 73, Drew AF2Z On Mon, 04 Feb 2008 13:29:25 -0800 (PST), you wrote: I asked the wrong filter question...or...what was on my mind and how it came out my fingers did not jive. Which is better a 5 pole filter or an 8 pole filter. Supposedly the 8 pole would have sharper skirtsand for only 20 more bucks...wellI would like to know the difference between the two filters. Is it worth the 20 bucks? I am sure it is, but as you all know there is some economic rumbling and need to watch the pennies. This is not about costit is about what is the difference between the two types of filters. Lee - k0WA ___ 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 Orders- PLEASE CONTACT ELECRAFT
Would the following customers with K3 orders please contact me as soon as possible either via email ([EMAIL PROTECTED]) or phone (831 662-8345)regarding your K3 order. G4ABX Dr. MacCaulay WH6AA Bart Aronoff K4RF Steve Adams AD8C Jay Ryno K7IA Daniel Murphy DK1Kl Detlef Fischer K0ZK Arnold Olean Thanks! Lisa ___ 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] New Orders
Lisa will send you an email acknowledging you order. I am surprised you haven't received it already. --- Jerry Keller (K3BZ) [EMAIL PROTECTED] wrote: What sort of acknowledgement can I expect for my K3 order placed last Sunday? 73, Jerry K3BZ ___ 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] New Orders
I imagine they have so many new orders that mine is just one of the bunch. They'll probably get around to it in time... I was just wondering if they acknowledge them by individual email, or maybe I had to go to some website page and look up the status. I've heard something about a status page where you can check... is that true? 73, Jerry K3BZ - Original Message - From: WILLIS COOKE [EMAIL PROTECTED] To: Jerry Keller (K3BZ) [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Monday, February 04, 2008 10:33 PM Subject: Re: [Elecraft] New Orders Lisa will send you an email acknowledging you order. I am surprised you haven't received it already. --- Jerry Keller (K3BZ) [EMAIL PROTECTED] wrote: What sort of acknowledgement can I expect for my K3 order placed last Sunday? 73, Jerry K3BZ ___ 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] New Orders
What sort of acknowledgement can I expect for my K3 order placed last Sunday? 73, Jerry K3BZ ___ 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] New Orders
You should receive an email acknowledging your order. (At least I received one for my order.) The status page you have heard of is probably the now famous (or infamous?) shipping status page: http://www.elecraft.com/elecraft_shipping_status.htm It will give you an idea how many months you have to wait to get your own K3. You will quickly see that it says, New K3 orders are now targeted for May delivery. Keep in mind that that is just an estimate. While the Elecraft guys are great at designing radios, and great at customer support, they have had some problems recently with forecasting the future. You can get an idea about some the problems by noting the comment on the KFL3B-FM filter, and Wayne's note on the delay of the KRX3. Mark AD5SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] New Orders
I will point out once again that Elecraft have improved their shipping rate vs. orders invoiced, by orders of magnitude during the last several months. If you are in a similar industry and/or understand small companies, you may actually appreciate this and the difficulties they have gone through. If not, too bad for you. Everybody wins now. This is a good thing. :) Live long and DX! This may well be the best radio you've ever been the owner/operator of! I'm not affiliated with Elecraft, just a fan. 73, matt zilmer W6NIA K3 # 24, K2 # 2810 On Mon, 04 Feb 2008 21:51:29 -0600, you wrote: You should receive an email acknowledging your order. (At least I received one for my order.) The status page you have heard of is probably the now famous (or infamous?) shipping status page: http://www.elecraft.com/elecraft_shipping_status.htm It will give you an idea how many months you have to wait to get your own K3. You will quickly see that it says, New K3 orders are now targeted for May delivery. Keep in mind that that is just an estimate. While the Elecraft guys are great at designing radios, and great at customer support, they have had some problems recently with forecasting the future. You can get an idea about some the problems by noting the comment on the KFL3B-FM filter, and Wayne's note on the delay of the KRX3. Mark AD5SS ___ 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] New Orders
The thing people forget is that YaeComWood, TenTec, etc have much deeper pockets and more resources. Borrowing a few million for them is no big deal, but a substantial risk for a company of Elecraft's size. If a product does not do well, there is less impact on the bottom line. The other companies also have many more models to spread the pain over, as well as other divisions that can contribute resources to development. You don't generally hear about a product too much until it is ready to launch, and units are already built and often on the way to dealers. You also get them with all the warts that were deemed not worth fixing right away, as the early adopters can beta test. (Just a generalization, not aimed at any specific company) Sure there have been manufacturing problems, etc. Since they don't own the plant, but have to contract it out, a lot of control is lost. Elecraft's high standards are not easy to meet, causing further delays. If I had the money in May or any time after, I would have gladly paid a deposit and waited. (I know, easy for me to say) I seriously considered liquidating my equipment to do that very thing, but did not. In hind sight, I should have, since I have been too busy to do any serious operating anyway. I would now have a K3... Mike AI4NS K2/100 ___ 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 AM SWL - Stock 2.7 Filter
Have the KBPF3 and only have the stock 2.7 roofing filter? You can listen to AM SWL using sideband, but then it sounds like sideband. Very good sideband, but very non AM like. Or you can buy the AM filter. I am waiting for an FM filter, it seems resonable that it should be good for AM receive, and at bandwidths greater than 5 khz. For now, here's a way to listen to real AM with your stock K3, and it sounds excellent as well. 1. Enter a frequency for example 5.883.95, then AM. 2. The K3 will go silent, not finding a filter for the AM mode. 3. Press CONFIG, dial VFO B to FL(n) BW. 4. Press XFIL until your 2.7 filter is selected. 5. Tap Menu. 6. Use the LO cut to reduce to .10 use hi CUT to MAX of 3.1 7. Find a strong AM broadcast, it will need to be S9 or better to blow by the 5 pole filter. ;-) With a 40 meter dipole at might most of the signals are S9 or better without the preamp. Tune the signal carefully for fidelity and the filter is just not a problem. The K3 sounds as good on AM as I've heard on any other amateur radio. Part of this may be the RX EQ (main menu) where you can have band 3 (the lows) set to maximum, also bands 5, 6, and 7 raised, suit to taste. The K3 will not use the 2.7 filter for AM the next time you power up, but everything else can be saved in a memory, just perform step 3 to call in the filter. This radio (K3) is s flexible, just an incredible platform. ___ 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] New Orders
Why all this again? Jerry just wanted to be sure that his order was properly placed to get into the Que. --- Mike Short [EMAIL PROTECTED] wrote: The thing people forget is that YaeComWood, TenTec, etc have much deeper pockets and more resources. Borrowing a few million for them is no big deal, but a substantial risk for a company of Elecraft's size. If a product does not do well, there is less impact on the bottom line. The other companies also have many more models to spread the pain over, as well as other divisions that can contribute resources to development. You don't generally hear about a product too much until it is ready to launch, and units are already built and often on the way to dealers. You also get them with all the warts that were deemed not worth fixing right away, as the early adopters can beta test. (Just a generalization, not aimed at any specific company) Sure there have been manufacturing problems, etc. Since they don't own the plant, but have to contract it out, a lot of control is lost. Elecraft's high standards are not easy to meet, causing further delays. If I had the money in May or any time after, I would have gladly paid a deposit and waited. (I know, easy for me to say) I seriously considered liquidating my equipment to do that very thing, but did not. In hind sight, I should have, since I have been too busy to do any serious operating anyway. I would now have a K3... Mike AI4NS K2/100 ___ 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 AM SWL - Stock 2.7 Filter
Don You mention blow-by to receive strong AM signals. Is the amount of blow-by covered by the specs? I'm concerned about receiving on 40m here in Europe where nearby broadcast stations are way above anything amateurs receive within other bands. David G3UNA snip Subject: [Elecraft] K3 AM SWL - Stock 2.7 Filter Have the KBPF3 and only have the stock 2.7 roofing filter? 7. Find a strong AM broadcast, it will need to be S9 or better to blow by the 5 pole filter. ;-) With a 40 meter dipole at might most of the signals are S9 or better without the preamp. ___ 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
