Re: [Elecraft] [K2] : Laptop UPS
OK, maybe the bet was a bit one sided, as most SM PSU's are made in China and THEY produce EMI not the analogue ones. How can the purchaser be responsible? They don't design and manufacture the item ! EMC rules on these PSU's are very clear. If however, the manufacturer chooses to omit vital EMI suppression components because of commercial imperative, then they are breaking the law. Quality control does not enter into the equation, neither does marketing. The government organisations, who originally demanded that test methods and limits were put in place as part of the overall CE scheme, and now do nothing to enforce the law are equally to blame. Stewart G3RXQ On Sun, 16 Mar 2008 18:16:19 +, David Woolley (E.L) wrote: Stewart Baker wrote: By any chance was the UPS manufactured in China ? That's not a very fair bet; almost every bit of consumer electronics is manufactured in China or has most of its components manufactured there. However, if the suggestion is the responsibility for poor EMC lies in China, that's not true. A lot of the responsibility comes down to the purchasers, who want minimum prices and do not care about features that only benefit non-purchasers. Beyond that are the marketing organisations that wouldn't know what EMC measurements actually mean, and the corporate management that only knows how to manipulate the stock market. If you buy something from a UK/US marketing organisation, and it is of poor quality, they cannot blame their tools, by saying it was the suppliers fault; they should have chosen better suppliers, or paid people with appropriate technical knowledge, to do quality control. Governments also have a responsibility. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] : Laptop UPS
Actually the purchaser does have the ability to decide on the importance of the EMI signature. Many of the laptop products only have to stand up to the A standard. Where as some companies have tougher requirements and require things to stand up to a higher standard. I work for a company that designs bar code scanners. My company is the ONLY organization of them all in the production of large fixed installation scanners that requires our products to pass the B standards rather than class A. (Essentially the class B standards require that you are about 10dB below the class A standards). Not to mention the fact that we require that we pass with at least 3dB of margin so technically we require our products to be 13dB better than we really have to be. Not to mention the rest of the testing that we do on our products. In the large supermarket fixed installation scanners we actually slam a 30 pound bag of lead shot directly onto the scanner from 2 feet. We call this the Turkey Drop test. We also hit the products with 25,000 volts ESD discharges and require that this causes zero failures while the industry standard is 15KV. Anyway the point of the whole thing is that we are the manufacturer and designers of the scanner. We purchase power supplies from Chinese manufacturers and we as the purchaser mandate the requirements of the supply. If we did not there would be no way that we could stand up to our own standards. Honestly I've personally not run much in the way of testing on the laptop power supplies but I do know that we run switchers to power our products. Mainly because we need to be able to support the use of our product worldwide but also because California is now outlawing the use of unregulated transformer based linear supplies in new products. Maybe next time I'm at the lab if I have some free time I'll run some tests on my dell power supply. Honestly I have used my laptop as a host before and have found that with only some very minor mods my Latitude D610 can be made to pass class B. I only had to add a few pf's of capacitance here and there and it works great. But that doesn't mean that I don't still slap ferrites on all of the cables to and from our product that I'm allowed! :) We'll see if I end up with some free time... Although at $350 an our for lab time you tend to get very good use of the time! ;) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
I run QRP out of practical necessity. I'm forced to use attic antennas and I don't wish to induce more RF into the domestic electrical equipment (or me, for that matter) than I absolutely have to. Nevertheless, I'm thinking about getting a KPA3, because it probably will never be cheaper than it is now, and the occasion might arise in future when I might be able to use it. I'm just wondering if there are any advantages to using the PA when running QRP. As I understand it, the PA is switched out of circuit until you dial the power above 10W, just as in the K2. There is no option for class A operation at a lower power level to produce a cleaner signal. If I run 10W of FM, the QRP PA will do all the work, and warm up very quickly, instead of letting the KPA3 do most of the work and barely getting warm. If I run 5W of PSK31, the IMD generated by the low power PA running at half its rated power will be higher than the KPA3 loafing along at the same power level. Unless I'm missing something, there would be no benefit to me at the moment from having the KPA3 unless I want to wind the power control above 10W. Am I right? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16091280.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] : Laptop UPS
VR2BrettGraham wrote: G3RXQ asked F4FNT about the Dell OEM UPS (probably meaning power supply) for his laptop that made noise G4ILO then added: Actually it was Stewart G3RXQ who asked if the PSU was made in China. I don't have anything against products made in China. Just about everything you buy here in the UK is made in China. Nothing is manufactured here any more. Nobody wants to be an engineer, or do any other job that might involve getting their hands dirty (then they complain about all the immigrants who come here to do the jobs they won't do.) Only on Friday I bought a Revo Pico WiFi Internet radio. On the front of the box it says Proudly Designed in the United Kingdom. On the back it says Made in China. It is a very high quality product and creates no RFI at all. China today will make anything you want. If you want high quality they will make it to your specification, and do it cheaper too. I'm sure they could make K3s to the same specification as Elecraft if Eric wanted them to. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/-K2--%3A-Laptop-UPS-tp16076670p16091213.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] KPA3 for QRP
From my understanding of it the radio has the KPA3 switched out of the loop until you cross the 12W mark. Then it starts actually putting it into the signal path. Until you crank the power up beyond 12Watts the KPA3 is nothing more than an added current drain. But if you turn things up to 12 or 13 watts you're probably still quite fine with those levels for RFIing yourself and the rest of the house / neighborhood and your KPA3 will have TONS of headroom for you in that configuration. Yet as far as the low power amp its still probably still rated at the same 100% duty cycle at full power for 10 minutes. I say probably because the only technical spec listed is that it will handle 100 watts for 10 minutes easily on the web site and in the manual. I'd imagine that similar margins are used on both PA's being that both are designed to have a 20% overhead which is more than you get from Yaecomwood out of the gate! One big advantage is that getting the KPA3 now is a smart investment as it is probably only going to go up in price and you have a great advantage with the current exchange rate as it is. Not to mention that if you were ever to want to sell your K3 the fact that a KPA3 is already installed makes it much more attractive to many more people. My motto has always been its better to have than to want. ;) On Mon, 2008-03-17 at 02:55 -0700, G4ILO wrote: I run QRP out of practical necessity. I'm forced to use attic antennas and I don't wish to induce more RF into the domestic electrical equipment (or me, for that matter) than I absolutely have to. Nevertheless, I'm thinking about getting a KPA3, because it probably will never be cheaper than it is now, and the occasion might arise in future when I might be able to use it. I'm just wondering if there are any advantages to using the PA when running QRP. As I understand it, the PA is switched out of circuit until you dial the power above 10W, just as in the K2. There is no option for class A operation at a lower power level to produce a cleaner signal. If I run 10W of FM, the QRP PA will do all the work, and warm up very quickly, instead of letting the KPA3 do most of the work and barely getting warm. If I run 5W of PSK31, the IMD generated by the low power PA running at half its rated power will be higher than the KPA3 loafing along at the same power level. Unless I'm missing something, there would be no benefit to me at the moment from having the KPA3 unless I want to wind the power control above 10W. Am I right? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
G4ILO wrote: I'm just wondering if there are any advantages to using the PA when running QRP. As I understand it, the PA is switched out of circuit until you dial the power above 10W, just as in the K2. The switch point in the KPA3 is actually 13W. For 12 and less it'is switched out. Unless I'm missing something, there would be no benefit to me at the moment from having the KPA3 unless I want to wind the power control above 10W. Am I right? Nothing I'm aware of. -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16091715.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: RE[Elecraft] V Button - Rig Comfort
I wonder if there is a good reason why the REV function couldn't be allocated to one of the ACC pins and operated by a foot switch.? For those ofcourse that don't want to use a foot switch for PTT and/or haven't got the second RX on order...(like me) Stewart Rolfe, GW0ETF Lee Buller wrote: I am all for making changes to buttons to make things easier, but I wonder if some are jumping the gun a little to fast here. This is a NEW radio and it takes time for an operator to get use to it. Change is good, but change to make the rig similar to other rigs might not be the answer. I found for one that I did not have any trouble working Clipperton on split more using the REV key. Hold the button and tune the knob with my thumb. (What got me about Clipperton was some of the ops - editorial comment) I got use to doing it, so I am in the process of retraining myself from the previous rig. That is the keyretraining my brain for the K3. The K3 is not an Omni VI+, or a 930 or a 940 or a 850 or a 756PROxx...it is a K3. It is unique (or different) and it has been planned by a group of excellent engineers and operators. I for one am learning to appreciate the planning, engineering and development of the unit. 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 -- View this message in context: http://www.nabble.com/REV-Button---Rig-Comfort-tp16083233p16090933.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] : Laptop UPS
It makes no RFI at all that bothers you in your situation. The only product that produces no RFI at all is the pet rock. Its all just a matter of degree. On Mon, 2008-03-17 at 02:37 -0700, G4ILO wrote: It is a very high quality product and creates no RFI at all. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: my assembly pictures
I don't remember seeing the pint of beer in the assembly manual or the inventory - looks like Lisa missed packing that in my K3 :-( 73 de M0XDF, K3 #174 -- He who asks is a fool for five minutes, but he who does not ask remains a fool forever. -Chinese proverb On 17 Mar 2008, at 04:01, Wim Dewilder wrote: Here's an attempt to post a link to my K3 assembly pictures URL:http://www.dewilder.com/public/k3/index.html enjoy - Wim ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: RE[Elecraft] V Button - Rig Comfort
GW0ETF wrote: I wonder if there is a good reason why the REV function couldn't be allocated to one of the ACC pins and operated by a foot switch.? For those ofcourse that don't want to use a foot switch for PTT and/or haven't got the second RX on order...(like me) Good idea! I know some did that with the TF-SET on the TS-930S. It might even be possible to hack this yourself if Elecraft didn't want to do it. Before giving up on using REV as is, try depressing REV with you left index finger and place your leftmost finger(s) on the top of the big VFO knob. It helps if the knob is set to spin freely. I've been doing this since 1984 so it seems very natural to me. I also LOCK VFO A (on the DX frequency) so any momentum from the knob still moving is not transferred from VFO B to VFO A as REV is released. I believe this was a relatively recent firmware change and I'm not sure it was ever documented. There can still be a 10 Hz shift in VFO A if you intentionally release REV while the knob is rapidly spinning but you must really try to induce that (i.e. not a real issue IMHO). 73, Bill -- View this message in context: http://www.nabble.com/REV-Button---Rig-Comfort-tp16083233p16091925.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 #6425 low/no sensitivity - suggestions?
TF3KX wrote: the IF chain. An interesting thing is that I hear this signal much weaker in the K2 audio when I touch it to the INPUT of IF-amp U12 (MC1350) than to its OUTPUT. In other words, that IF amp does not amplify, but rather attenuate the injected signal. I have re-checked all connections around That suggests an AGC problem. I wonder if the AGC mixer is out of balance and you are getting a lot of its local oscillator getting into the AGC chain? I also wonder if this problem relates to two recent reports of people being unable to find the 7MHz birdie. U12, re-flowed the solder, checked T7 and removed the overload diodes D40 and D41 - with no improvement. Problem 2: Low 8V regulator output, 7.56V. As a result I could only adjust the U2 pin 5 voltage to 3.60V using R1, in Alignment I. Probing the There have been a lot of reports of out of spec 8V regulators recently; it looks like they've received a bad batch and need to take some quality control action. (Note that the U2 pin5 voltage does not allow for component tolerances, so a low value is not necessarily a problem.) A low U2 pin 5 voltage, on its own, would actually increase the gain. On the other hand, they are not operating the IF amplifier at the supply voltage given in the data sheet and it may be that reducing supply voltage has the opposite affect on the AGC. voltages derived from the 8V supply, they are of course 5-10% lower than expected. All DC voltages on U12 are consequently a little low, but otherwise not abnormal. I plan to get a local replacement for the 8V regulator, just in case. But does anyone have comments on the low sensitivity? Would the low 8V level be a possible cause for this? As it is out of specification (7.6V), I believe Elecraft will replace it under warranty, and doing so will get it formally recorded as a quality failure. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K2] : Laptop UPS
You can't float the laptop power supply. The neutral pin of the plug is connected to the supply ground point as well as the ground pin. There is no ground point on a plastic lap top for the station ground. The only way to float the computer is to unplug the charger, which did work, but only until the battery needs to be charged. The better solution is to plug the laptop into the same circuit as the radios. Most people do not have a choice like I do because houses are usually wired room by room. I don't understand why this simple caveat is generating so many arguments. It is simple, worked for me and doesn't apply to most people. Cookie, K5EWJ --- Brett Howard [EMAIL PROTECTED] wrote: Or you could just easily float the laptop then you'd only have one chassis ground. On Sun, 2008-03-16 at 19:36 -0700, WILLIS COOKE wrote: Well I didn't plug it into my K3 with the transformer isolation because my K3 is in its gestation period and I am waiting for delivery. But, I don't think that it would have avoided the problem. I was using transformer isolation with a Rascal Interface. The hum came through the push to talk ground circuit. One of my friends had to replace the transistor PTT interface with an Opto Isolator to eliminate his ground loop problem. I have a separate power feed for my radio equipment that comes from a box at my meter loop and quite different ground length from the house wiring. You need your computer fed from the same power source as the radio equipment even if you have a K3. --- Brett Howard [EMAIL PROTECTED] wrote: This is why we transformer isolate our audio. If/when you get a K3 you'll have this feature built right into the rig. For me I just built a cable for the PSK/RTTY and what not and put transformers in a box in the middle of the cable. On Sun, 2008-03-16 at 05:57 -0700, WILLIS COOKE wrote: I don't know if it applies to your situation or not Raymond, but I had a lot of hum on when I connected my 110V Lap top to my TS-850 for PSK-31. I had the charger plugged into a house circuit and my radio equipment plugged into a separate circuit for the radio station. When I moved the charger plug to the radio circuit the hum went away. --- Raymond METZGER [EMAIL PROTECTED] wrote: Hi Elecrafters, I am interested to know what solution can be used to avoid the noise generated by the 220 V AC (OEM) UPS of my recent Dell Latitude Laptop. For the time being, I can only use the laptop with my K2/100 if the laptop is powered by its internal battery. Raymond METZGER F4FNT K2 5,636 - K3 expected at month end (ordered 8 September, Katiegram received last Friday) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Willis 'Cookie' Cooke K5EWJ Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - Initial Alignment Test Part 1 - Issues - Resolved
Thanks to: Michael - DC0ZO AL - WA6VNN Switch off, then press and hold the keys 4,5,6 and switch on. This will reset your K2 (see Manual page 102) That resolved my issue. I only had a few minutes before work this morning to test it... but things are looking good now. I will try to finish the initial alignment tonight after work. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.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] #0,#1 Screwdriver source
For those with old worn out phillips tip screwdrivers http://store.richspsxparts.com/0phsctoopps2.html $6 for set, shipping included. These are not jeweler's sized but rather hand sized screwdrivers. K3KO -- View this message in context: http://www.nabble.com/-0%2C-1-Screwdriver-source-tp16092892p16092892.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] : Laptop UPS
Brett Howard wrote: California is now outlawing the use of unregulated transformer based linear supplies in new products. Oh, great. Although as you point out it is possible to make a quiet switcher, it's also cheaper to make one that will wipe out everything for a 100-yard radius. Let me tell you about this high-intensity lamp that I have...actually, it does have some value; it can be used as a noise generator to align the filters in my K2. Now *every* piece of electrical junk will have one! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K2] : Laptop UPS
The only product that produces no RFI at all is the pet rock. Even rock has a radiation signature.. BTW - If you are worried about radiation, don't do a walking tour of Edinburgh, Scotland... Granite is 'radio' active -- Dave G. KK7SS '65 MK III Sprite in Richland, WA Two things are infinite, the universe and human stupidity. But I'm not so sure about the universe. ... Albert Einstein. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Simple DXCC Questions?
I have a few basic DXCC questions and hope someone on the list could help me? If you have lived in multiple locations does that matter? If you have had multiple calls how does that work? How far back can you go for old QSL cards? Can I go back to the early 1970's as a Novice? Thanks for the help! 73's -- Norm K9NK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
Hi Julian There is one drawback, however. Increased current drain, even though the KPA3 is not in use at QRP levels. If this isn't a problem for you, then go right ahead. However, if you want to take your K3 out to the field for a Field Day operation, that extra drain can create battery problems. Good luck and 73 Bob N6WG - Original Message - From: G4ILO [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 1:55 AM Subject: [Elecraft] KPA3 for QRP I run QRP out of practical necessity. I'm forced to use attic antennas and I don't wish to induce more RF into the domestic electrical equipment (or me, for that matter) than I absolutely have to. Nevertheless, I'm thinking about getting a KPA3, because it probably will never be cheaper than it is now, and the occasion might arise in future when I might be able to use it. I'm just wondering if there are any advantages to using the PA when running QRP. As I understand it, the PA is switched out of circuit until you dial the power above 10W, just as in the K2. There is no option for class A operation at a lower power level to produce a cleaner signal. If I run 10W of FM, the QRP PA will do all the work, and warm up very quickly, instead of letting the KPA3 do most of the work and barely getting warm. If I run 5W of PSK31, the IMD generated by the low power PA running at half its rated power will be higher than the KPA3 loafing along at the same power level. Unless I'm missing something, there would be no benefit to me at the moment from having the KPA3 unless I want to wind the power control above 10W. Am I right? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16091280.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
Re: [Elecraft] Simple DXCC Questions?
Hi Norm Living in multiple locations does not seem to be a problem, as long as they were all within the same DXCC entity, in our case, the continental US. I think you have a choice of what call you apply for your DXCC under. I worked mine as W0KMF when I lived in Iowa, but have N6WG now. When I finally get around to applying, I'll probably ask for the W0KMF call on the certificate. If they only want to grant to your current call, that's fine too. Reaching way back will probably cause you to have to send your cards to ARRL for checking. By now, some of the countries I have cards for no longer exist :-) Good luck and 73 Bob N6WG - Original Message - From: Norm Klieman [EMAIL PROTECTED] To: Elecraft elecraft@mailman.qth.net Sent: Monday, March 17, 2008 6:50 AM Subject: [Elecraft] Simple DXCC Questions? I have a few basic DXCC questions and hope someone on the list could help me? If you have lived in multiple locations does that matter? If you have had multiple calls how does that work? How far back can you go for old QSL cards? Can I go back to the early 1970's as a Novice? Thanks for the help! 73's -- Norm K9NK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Simple DXCC Questions?
Hi, Norm! First, here is the URL for the DXCC rules on the ARRL web site: http://www.arrl.org/awards/dxcc/rules.html For DXCC, if your multiple locations are within the same DXCC entity, it doesn't matter. You can move from California to New York and you're in the same DXCC entity, so all your QSOs from the continental United States (the lower 48) count for one DXCC award. QSOs you make from Puerto Rico or Hawaii count toward a DXCC award from that DXCC entity. For example, I have DXCC from England (where I lived for 4 years) and a separate DXCC for the United States. However you can't combine QSOs made from California and Hawaii and Alaska into one DXCC award. If you used multiple calls, you just tell the DXCC desk in your application what your calls were. They have access to the historic callsign databases if there's any question. Some of my England DXCC QSOs were made as G0/AA6MC, some were made with my England call of G0MFO, they're all one DXCC. I just told them the dates and calls and sent the cards. The DXCC program goes back to about 1945. Your 1970's Novice QSOs definitely count for the Mixed award. However DXCC CW started in 1975, so CW contacts prior to that date won't count toward your CW DXCC. Some DXCC entities have changed over the years, so your card from East Germany or Czechoslovakia in the 1980's might count for a deleted country now. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Norm Klieman Sent: Monday, March 17, 2008 7:51 AM To: Elecraft Subject: [Elecraft] Simple DXCC Questions? I have a few basic DXCC questions and hope someone on the list could help me? If you have lived in multiple locations does that matter? If you have had multiple calls how does that work? How far back can you go for old QSL cards? Can I go back to the early 1970's as a Novice? Thanks for the help! 73's -- Norm K9NK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Simple DXCC Questions?
The countries that no longer exist do not count for DXCC. They will credit you, but count only current countries toward the official count, I think. I am not totally sure about for the initial 100, but I am certain about when you start working for the Honor Roll. I have been DXing for 52 years and I only have 7 deleted countries out of 316, so it is not too big of a deal. Cookie, K5EWJ --- Robert Tellefsen [EMAIL PROTECTED] wrote: Hi Norm Living in multiple locations does not seem to be a problem, as long as they were all within the same DXCC entity, in our case, the continental US. I think you have a choice of what call you apply for your DXCC under. I worked mine as W0KMF when I lived in Iowa, but have N6WG now. When I finally get around to applying, I'll probably ask for the W0KMF call on the certificate. If they only want to grant to your current call, that's fine too. Reaching way back will probably cause you to have to send your cards to ARRL for checking. By now, some of the countries I have cards for no longer exist :-) Good luck and 73 Bob N6WG - Original Message - From: Norm Klieman [EMAIL PROTECTED] To: Elecraft elecraft@mailman.qth.net Sent: Monday, March 17, 2008 6:50 AM Subject: [Elecraft] Simple DXCC Questions? I have a few basic DXCC questions and hope someone on the list could help me? If you have lived in multiple locations does that matter? If you have had multiple calls how does that work? How far back can you go for old QSL cards? Can I go back to the early 1970's as a Novice? Thanks for the help! 73's -- Norm K9NK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Does the K3 come with the Anderson power poles already installed or at least in the kit? Tnx Tom CX7TT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
People talk about the extra current drain. How much is it? I don't have my K3 yet to make any tests and I seldom run QRP (only when the other station wants 2 way QRP), but it would be of interest to us all if anyone had measured the current draw of the K3 at receive with and without the KPA3, transmit at 5 watts without the KPA3 installed and transmit at 5 watts with the KPA3 installed. I am sure that Elecraft has the information, but I don' recall seeing it published. My guess is that the KPA3 does not require much if any current when it is switched out. Anybody do any tests to know for sure? --- Robert Tellefsen [EMAIL PROTECTED] wrote: Hi Julian There is one drawback, however. Increased current drain, even though the KPA3 is not in use at QRP levels. If this isn't a problem for you, then go right ahead. However, if you want to take your K3 out to the field for a Field Day operation, that extra drain can create battery problems. Good luck and 73 Bob N6WG - Original Message - From: G4ILO [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 1:55 AM Subject: [Elecraft] KPA3 for QRP I run QRP out of practical necessity. I'm forced to use attic antennas and I don't wish to induce more RF into the domestic electrical equipment (or me, for that matter) than I absolutely have to. Nevertheless, I'm thinking about getting a KPA3, because it probably will never be cheaper than it is now, and the occasion might arise in future when I might be able to use it. I'm just wondering if there are any advantages to using the PA when running QRP. As I understand it, the PA is switched out of circuit until you dial the power above 10W, just as in the K2. There is no option for class A operation at a lower power level to produce a cleaner signal. If I run 10W of FM, the QRP PA will do all the work, and warm up very quickly, instead of letting the KPA3 do most of the work and barely getting warm. If I run 5W of PSK31, the IMD generated by the low power PA running at half its rated power will be higher than the KPA3 loafing along at the same power level. Unless I'm missing something, there would be no benefit to me at the moment from having the KPA3 unless I want to wind the power control above 10W. Am I right? - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16091280.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 Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Hi The K3 has a PowerPole connector on the back of the radio and includes a kit to build up a 5 ft cable to plug into the radio. The power supply end is not supplied so you will need to connect the bare wires to your power supply or supply your own connector for your power supply. The cable kit includes 5 ft of #12 red/black zip cord, a set of red and black PowerPole connectors with terminal pins and instructions. The instructions recommend soldering the pins. Don Brown KD5NDB Date: Mon, 17 Mar 2008 19:37:47 +0400 From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Subject: [Elecraft] K3 power cable Does the K3 come with the Anderson power poles already installed or at least in the kit? Tnx Tom CX7TT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Tom, You will have to heat up the soldering iron for this one. They give you the connectors and cable...no fuses or fuse holders. You will have to crimp and solder. 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] OT - DXCC Questions?
Deleted countries -do- count for DXCC, assuming one has them confirmed, of course. (:-)) In theory, a relative new-comer to DX'ing can never reach the same country count as the older participants because the older op's have countries credited that the new applicants can never work. 73! Ken Kopp - K0PP DXCC/CW w/310 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
The connector was *not* installed on the cable in my K3 kit. 73, Ken K3IU [EMAIL PROTECTED] wrote: Does the K3 come with the Anderson power poles already installed or at least in the kit? Tnx Tom CX7TT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
Yes Julian - you are right. There is no advantage in having a KPA3 for QRP working. In fact, there is a bit of a disadvantage as it takes up space in the case which you might be able to use for something else, like a battery or a VHF transverter. Regarding the price, at $450 + VAT it is not particularly cheap compared to any other broadband 100W HF amplifier you might buy. Couple it with the KAT3 at $300 you are into the $750 territory and I am sure there are cheaper and more flexible alternatives. A good example being the K2 100W PA and ATU in an external case. If you really want a very clean signal, an external amplifier fed with a few watts and in class A would be a better bet. You could then use a device like an MRF151G with a 45V supply and if you wish to home brew check out the CCI website for amplifier kits. A 200W amplifier running off 28V or 48V will be very clean at 50W or so in class A. Mike -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16094199.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] Elecraft cover info requests
I still have some concern about blocked e-mails. If you have -not- yet received a reply to your request for information about my Elecraft covers please let me know. I've responded to all inquiries received. 73! Rose Kopp - N7HKW [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] OT - DXCC Questions?
The area where it is a competition is for Honor Roll and only current countries count for that. New ops are on the same footing as the old ops, except for the accumulated DXCC credits. This may also be true for the challenge award. Like was previously stated, the rules are somewhat complex and one should read them periodically rather than rely on second hand information such as this. --- Ken Kopp [EMAIL PROTECTED] wrote: Deleted countries -do- count for DXCC, assuming one has them confirmed, of course. (:-)) In theory, a relative new-comer to DX'ing can never reach the same country count as the older participants because the older op's have countries credited that the new applicants can never work. 73! Ken Kopp - K0PP DXCC/CW w/310 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Others have given you the answer you were searching for, but I'll just chime in to say that during my K3 wait (June till February), I made a cable of 10 ga. zip, with an in-line fuse holder and PowerPoles on each end. I have a West Mountain Radio crimper available, so I crimped then soldered each terminal. The Elecraft power cable kit is still in its bag, waiting for another project. [EMAIL PROTECTED] wrote: Does the K3 come with the Anderson power poles already installed or at least in the kit? 73, Mike KW1ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Hey Guys, Tnx for the quick response...I have no problem with soldering as I did build a K2 a few years ago...My just delivered K3 is sitting at a friend's house in FL and I will be there this Friday evening. My friend does not use power poles so wanted to know if I would be able to set up and play with my new 'toy' during the weekend...Hooray...seems that I will; leave Monday nite for CX land and so will have it on the air by end of week...at least into vertical dipole or such. Tnx for all the positive comments and c u on the air with #250. 73 Tom ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
You either crimp or Solder - not both 73 de M0XDF, K3 #174 -- Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case, the idea is quite staggering. -Arthur C Clarke, science fiction writer (1917- ) On 17 Mar 2008, at 15:50, Lee Buller wrote: Tom, You will have to heat up the soldering iron for this one. They give you the connectors and cable...no fuses or fuse holders. You will have to crimp and solder. 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
Re: [Elecraft] Simple DXCC Questions?
For Deleted Countries you get credit for them if you worked them when they were valid countries. The DXCC list includes the valid dates for each deleted country. The credit applies to your basic count for the DXCC award and endorsements. Thus for example if you have 98 current countries and two deleted countries worked when they were valid that would qualify you for a DXCC award. Where Deleted Countries do not count is for the DXCC Honor Roll. To make the Honor Roll, at present you need at least 329 countries, and Deleted Countries are not counted. 73, Steve Kercel AA4AK At 11:34 AM 3/17/2008, WILLIS COOKE wrote: The countries that no longer exist do not count for DXCC. They will credit you, but count only current countries toward the official count, I think. I am not totally sure about for the initial 100, but I am certain about when you start working for the Honor Roll. I have been DXing for 52 years and I only have 7 deleted countries out of 316, so it is not too big of a deal. Cookie, K5EWJ --- Robert Tellefsen [EMAIL PROTECTED] wrote: Hi Norm Living in multiple locations does not seem to be a problem, as long as they were all within the same DXCC entity, in our case, the continental US. I think you have a choice of what call you apply for your DXCC under. I worked mine as W0KMF when I lived in Iowa, but have N6WG now. When I finally get around to applying, I'll probably ask for the W0KMF call on the certificate. If they only want to grant to your current call, that's fine too. Reaching way back will probably cause you to have to send your cards to ARRL for checking. By now, some of the countries I have cards for no longer exist :-) Good luck and 73 Bob N6WG - Original Message - From: Norm Klieman [EMAIL PROTECTED] To: Elecraft elecraft@mailman.qth.net Sent: Monday, March 17, 2008 6:50 AM Subject: [Elecraft] Simple DXCC Questions? I have a few basic DXCC questions and hope someone on the list could help me? If you have lived in multiple locations does that matter? If you have had multiple calls how does that work? How far back can you go for old QSL cards? Can I go back to the early 1970's as a Novice? Thanks for the help! 73's -- Norm K9NK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Amplifier Vacuum Tubes
One good source might be Ameritron. They are still selling 811 amplifiers and they could not do so if they didn't have working tubes (new) to put in them. They probably charge more than RF Parts because they have to quality check them. I hate to point out, anyone so ignorant that they are unaware you can buy new good tubes, may also be ignorant of how to tune and operate them. Don't overlook the possibility that the guy who started this thread may be wrong and RF Parts may be right. All my life I've heard guys moan and groan about 811A's dying. I've had the same pair in my little home brew amp for 20 years and I pump them hard. 450W PEP on 80 meters, 400W CW. You just have to know how to take care of them. Having said that, I must admit solid state is the future, and when the day comes that I can afford a solid state amp I will buy one. TR, WB6TMY From: Brett Gazdzinski Subject: [Elecraft] Amplifier Vacuum Tubes I would like to point out that there are loads of good tubes around, many places have a lot of old US tubes, I use some 100TH tubes made in the 1950's, and also have a pile of 811a, 812a, 813,s, 4-125, 4-400,etc. No I dont want to sell any, but there are loads of good tubes around. Unless overloaded, most tubes seem to keep working for a long time. I would not get any tubes from China, Russian tubes are sometimes ok, and the ones from Eastern Europe seem good, but best is old US tubes. Brett ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
You either crimp or Solder - not both While it may be easy to prove that doing both is redundant, I see no reason why one *can't* do both, provided you crimp before soldering. I find it rather odd to make such a firm distinction. If I'm planning ahead and remember to bring the crimpers home from work, I'll typically just crimp. Otherwise, I just solder. Sometimes, though, I'll get picky and do both, such as on lines that will be carrying a fair bit of power. 73, Mike KW1ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
You are welcome to do both - as long as you don't compromise the contact fit inside the housing. As to whether its worst or even advisable to do both... I've had people tell me that soldering hardens the point where the wire joins the contact and effectively weakens it, because strands can break at that point. I have to say, I would have thought defence contractors would solder as well as crimp, if that was considered worthwhile. FWIW - I havn't soldered any of my crimped APPs. -- Study without desire spoils the memory, and it retains nothing that it takes in. -- Leonardo da Vinci On 17 Mar 2008, at 17:33, Mike B wrote: You either crimp or Solder - not both While it may be easy to prove that doing both is redundant, I see no reason why one *can't* do both, provided you crimp before soldering. I find it rather odd to make such a firm distinction. If I'm planning ahead and remember to bring the crimpers home from work, I'll typically just crimp. Otherwise, I just solder. Sometimes, though, I'll get picky and do both, such as on lines that will be carrying a fair bit of power. 73, Mike KW1ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
You either crimp or Solder - not both I crimp and solder. But an explanation is in order: I begin by crimping the PowerPole connector to the stranded wire. When the crimp is complete, I then apply silver bearing solder ONLY to the very tip of the stranded wire where it butts up against the connector. The wire in the area of the crimp has NO solder and this is important to ensure that wire stresses due to cable movement do not break the wire as if it was a solid-conductor. So, it's the best of two worlds as flexibility at the crimp is maintained and I can be sure that long-term resistive loss is minimized by the small application of solder. When using this method, it's critical that the stranded wire does not wick the solder up to the crimp point and that's another reason why I use silver bearing solder as it tendency to flow along the wire is impeded more so than with standard lead/tin solder. 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
RE: [Elecraft] K3 power cable
You either crimp or Solder - not both Why not? I've done both on all my crimped connections for years. Crimping breaks through any oxidation in the wire and terminal as well as providing mechanical strength. Soldering adds to both of these as well as reducing the potential for further oxidation (and increased resistance) between the wire and terminal because they are no longer exposed to the environment. Now, if one doesn't have the proper crimping tool and risks distorting the terminal and its fit in the housing or interconnection with its mating terminal, then only soldering may be best. Or, if soldering is not practical for some reason, then crimping is fine. In that case, some dielectric grease on the parts before crimping will help minimize future oxidation and resistance build up. Most of our radio environments are limited enough so lessen the effects of oxidation and mechanical rigidity. But crimping and soldering is so easy to do, why not quickly provide the added margin? 73, Ed - W0YK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Amplifier Vacuum Tubes
--- TR, K2/100 S/N 838 [EMAIL PROTECTED] wrote: One good source might be Ameritron. They are still selling 811 amplifiers and they could not do so if they didn't have working tubes (new) to put in them. They probably charge more than RF Parts because they have to quality check them. I hate to point out, anyone so ignorant that they are unaware you can buy new good tubes, may also be ignorant of how to tune and operate them. Don't overlook the possibility that the guy who started this thread may be wrong and RF Parts may be right. All my life I've heard guys moan and groan about 811A's dying. I've had the same pair in my little home brew amp for 20 years and I pump them hard. 450W PEP on 80 meters, 400W CW. You just have to know how to take care of them. Having said that, I must admit solid state is the future, and when the day comes that I can afford a solid state amp I will buy one. TR, WB6TMY From: Brett Gazdzinski Subject: [Elecraft] Amplifier Vacuum Tubes I would like to point out that there are loads of good tubes around, many places have a lot of old US tubes, I use some 100TH tubes made in the 1950's, and also have a pile of 811a, 812a, 813,s, 4-125, 4-400,etc. No I dont want to sell any, but there are loads of good tubes around. Unless overloaded, most tubes seem to keep working for a long time. I would not get any tubes from China, Russian tubes are sometimes ok, and the ones from Eastern Europe seem good, but best is old US tubes. Brett I am the guy who started this thread. I could have trashed two sets of tubes, but I don't think so. I bought a used Hunter Bandit with 4 572Bs in 1976. The previous owner told me that the tubes needed replacement and included a set of unused but new Cetron 572Bs which I installed on the Hunter Bandit. In 1988 the power transformer in the Bandit died and I started looking for what to do. I found the Dentron Clipperton-L with bad tubes for a reasonable price. I pulled the Cetron tubes from the Bandit and installed them in the Clipperton and used them until last summer when I decided to buy some new tubes in case the Cetrons were a bit worse for 30 years of use. I talkes to RF Parts and asked which of the three types of 572b they carried would be best for my amplifier. They recommended their Taylor Brand over the Svetlana and the unbranded Chinese tubes so that is what I bought. One had a bad filament on installation. I returned them to RF Parts and they replaced them with an accusation that I drove them too hard. I installed the replacement set and ran them at 1800 volts for two weeks to prevent flash over. The first time I selected the 2400 Volt position one or more of the tubes flashed and took out my high voltage fuse. I ran them through the CQ WW SSB contest at 1800 volts to give them more time for the getters to clear the contaminants. I started the CQ WW CW with 1800 volts but before the contest was over the emission on the tubes was so low that I was down to 400 watts out on 80 and 100 watts out on 10 with 2400 volts on the plates. I pulled the Taylor set and replaced them with my 30 plus year old Cetrons and the amplifier is performing well today. Now you can speculate that I don't know how to tune an amplifier after owning the same amplifier with the same tubes for 30 years if you like. You can buy your products from RF Parts if you like. I hope that you do, you and RF Parts deserve to do business with each other. Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Ed Muns wrote: You either crimp or Solder - not both Why not? I've done both on all my crimped connections for years. Crimping breaks through any oxidation in the wire and terminal as well as providing mechanical strength. Soldering adds to both of these as well as reducing the potential for further oxidation (and increased resistance) between the wire and terminal because they are no longer exposed to the environment. Now, if one doesn't have the proper crimping tool and risks distorting the terminal and its fit in the housing or interconnection with its mating terminal, then only soldering may be best. Or, if soldering is not practical for some reason, then crimping is fine. In that case, some dielectric grease on the parts before crimping will help minimize future oxidation and resistance build up. Most of our radio environments are limited enough so lessen the effects of oxidation and mechanical rigidity. But crimping and soldering is so easy to do, why not quickly provide the added margin? 73, Ed - W0YK Crimping is only easy to do if you have the tool and are proficient in its use. Some of us need soldering only advice-like where not to get the solder. Power pole connectors are new technology to many of us. Given the problems I've had with past crimping tools, the first couple crimps with a new tool/connector are bad. That shoots down the two connectors supplied. So I guess if I had to buy a tool, I'd also get a bunch of spare connectors too. Not the scenerio I like for a $2K rig. Not an big deal though. 73 de Brian/K3KO. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft - Full Line Manufacturer
Well, now that I have got your attention with the subject line. The recent threads on amplifiers has been interesting since I am looking at adding an additional one to my station. I know the Elecraft people are very busy with the K3 roll out now, but with the advent of power transistors capable of delivering adequate power, I would like to suggest that Elecraft look at developing their amplifier again. Whoa nowhold the phone. I know they are busyand I am willing to waitbut it seems that the day of the transistor power amp is here and the players right now are IC, Y, Ameritron, and THP. I am not sure I want to shell out 5500 to 6500 bucks for one of these amps that can run SO2Rbut. Could there be a middle ground where a KW SS amp can come in at an affordable price...say below 1500 to 2000 bucks? Little do I know about cost accounting. Just asking questions...and making conversation. It seems the market is growing for this type of amp. 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] KXV3 clarification requested
On Fri, Mar 14, 2008 at 1:53 PM, Dave Hachadorian [EMAIL PROTECTED] wrote: Maybe I'm missing something here. What about the following from the K3 FAQ's: If the transverter option is not installed, can the K3 use ANT2 as a de facto RX ANT? Yes. If the KXV3 is not installed, you can designate either antenna to either receiver. So, this will allow me to transmit on a main antenna, and receive on a beverage without a subreceiver or KXV3 installed, right? Dave Hachadorian, K6LL I posed the same question to a couple of current K3 owners and they said NO. You need the KXV3 installed to listen to another antenna. One of them said that the isolation is very poor between ANT1 and ANT2, therefore you need the KXV3. It would be nice to have Elecraft's clarification on this, because the FAQ seems pretty clear and contrary to what other owners have said. Chad WE9V ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KXV3 clarification requested
My understanding is that IF you have the sub-RX installed and have the KAT3 installed, you can connect one antenna to ANT1, another antenna to ANT2, and select which antenna serves the main RX and which one serves the sub-RX. Since there are no sub-RXs in the field, no one has been able to do this and any comment about how effective (or ineffective) it would be seems premature. Pages 38, 39 and 40 of the Rev C Owners Manual makes it pretty clear... to me, anyway. 73, Ken K3IU Chad WE9V wrote: On Fri, Mar 14, 2008 at 1:53 PM, Dave Hachadorian [EMAIL PROTECTED] wrote: Maybe I'm missing something here. What about the following from the K3 FAQ's: If the transverter option is not installed, can the K3 use ANT2 as a de facto RX ANT? Yes. If the KXV3 is not installed, you can designate either antenna to either receiver. So, this will allow me to transmit on a main antenna, and receive on a beverage without a subreceiver or KXV3 installed, right? Dave Hachadorian, K6LL I posed the same question to a couple of current K3 owners and they said NO. You need the KXV3 installed to listen to another antenna. One of them said that the isolation is very poor between ANT1 and ANT2, therefore you need the KXV3. It would be nice to have Elecraft's clarification on this, because the FAQ seems pretty clear and contrary to what other owners have said. Chad WE9V ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
OK, we've established that the kit rigs require you to assemble the APPs on the wire to make the power cable. Same deal for the factory assembled rigs or do they come with finished power cables? - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 (soon) - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
The assembled K3's come with an assembled power cable, you just need to finish the battery/power supply side. Jeff On Mon, Mar 17, 2008 at 12:55 PM, Darwin, Keith [EMAIL PROTECTED] wrote: OK, we've established that the kit rigs require you to assemble the APPs on the wire to make the power cable. Same deal for the factory assembled rigs or do they come with finished power cables? - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 (soon) - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] No 6M scanning?
Well Simon I use HRD scan facility it works well with my K3!! 73 Rowland ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Re: [Elecraft] K3 power cable
I would far prefer a factory pre-assembled power cable, given the expense of the correct crimp tool and I far prefer crimping to soldering to a cable with no strain relief. ps I've probably crimped and soldered 100s of thousands of wires. But this is not a crimp tool in my armoury. David G3UNA - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Don't over complicate it. I just used a plain old wire crimper and solder. If you want some more strain relief, put some heat shrink tubing over the connector and for about 6 inches up the wire. Use big tubing at the connector and overlap it over smaller tubing up the wire. You might have to overlap a couple of different sizes to get it to be snug but it will be very strong. A drop of hot glue on the end of the power pole would also help. If you could see the Mickey Mouse job Yaesu did on the $4000 Quadra control cables or the pathetic and wimpy connector TenTec used for the Orion, you wouldn't feel so bad about the power poles. k4ia Buck K3 #101 Fredericksburg, VA **It's Tax Time! Get tips, forms, and advice on AOL Money Finance. (http://money.aol.com/tax?NCID=aolprf000301) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft - Full Line Manufacturer
Lee Buller wrote: I know they are busyand I am willing to waitbut it seems that the day of the transistor power amp is here and the players right now are IC, Y, Ameritron, and THP. Don't forget TE Systems. IMO the best available solid-state VHF/UHF amps. Could there be a middle ground where a KW SS amp can come in at an affordable price...say below 1500 to 2000 bucks? That's exactly what I'm looking for -- a bare-bones, no-frills solid-state amp with built-in PS. Being a VHF guy, I'd love to see full legal limit amps for 6m and 2m at a reasonable price point. I agree with you, Lee, I think there is potentially a big market starting to come into being for lower-priced solid state amplifiers. Bill W5WVO Little do I know about cost accounting. Just asking questions...and making conversation. It seems the market is growing for this type of amp. 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
Re: [Elecraft] KXV3 clarification requested
- Original Message - From: Chad WE9V [EMAIL PROTECTED] To: Dave Hachadorian [EMAIL PROTECTED] Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Monday, March 17, 2008 7:00 PM Subject: Re: [Elecraft] KXV3 clarification requested On Fri, Mar 14, 2008 at 1:53 PM, Dave Hachadorian [EMAIL PROTECTED] wrote: Maybe I'm missing something here. What about the following from the K3 FAQ's: If the transverter option is not installed, can the K3 use ANT2 as a de facto RX ANT? Yes. If the KXV3 is not installed, you can designate either antenna to either receiver. So, this will allow me to transmit on a main antenna, and receive on a beverage without a subreceiver or KXV3 installed, right? Dave Hachadorian, K6LL I posed the same question to a couple of current K3 owners and they said NO. You need the KXV3 installed to listen to another antenna. One of them said that the isolation is very poor between ANT1 and ANT2, therefore you need the KXV3. It would be nice to have Elecraft's clarification on this, because the FAQ seems pretty clear and contrary to what other owners have said. Chad WE9V Hi Chad, I thought this reply was an authoritative answer: http://www.nabble.com/Re%3A-KXV3-clarification-requested-p16058211.html I believe Lyle Johnson is an Elecraft employee. Dave Hachadorian, K6LL Yuma, AZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft - Full Line Manufacturer
I agree about the market for a bullet-proof solid state legal limit amplifier that will work seamlessly with the radio... like the ICOM PW-1 does now with the Pro-series. My Pro3 and PW-1 are so well matched it's like having a KW transceiver. I suspect Elecraft could do something like that with a legal limit amp partner for the K3 in fact, I would predict they will. It's the logical thing to do... when the time is right. 73, Jerry K3BZ - Original Message - From: Lee Buller [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Monday, March 17, 2008 2:38 PM Subject: [Elecraft] Elecraft - Full Line Manufacturer Well, now that I have got your attention with the subject line. The recent threads on amplifiers has been interesting since I am looking at adding an additional one to my station. I know the Elecraft people are very busy with the K3 roll out now, but with the advent of power transistors capable of delivering adequate power, I would like to suggest that Elecraft look at developing their amplifier again. Whoa nowhold the phone. I know they are busyand I am willing to waitbut it seems that the day of the transistor power amp is here and the players right now are IC, Y, Ameritron, and THP. I am not sure I want to shell out 5500 to 6500 bucks for one of these amps that can run SO2Rbut. Could there be a middle ground where a KW SS amp can come in at an affordable price...say below 1500 to 2000 bucks? Little do I know about cost accounting. Just asking questions...and making conversation. It seems the market is growing for this type of amp. 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
Re: [Elecraft] Elecraft - Full Line Manufacturer
Lee Buller wrote: Could there be a middle ground where a KW SS amp can come in at an affordable price...say below 1500 to 2000 bucks? I suspect this is hard to do. Although a SS amplifier itself is simple, by the time you get the power supply, the protective circuitry, the pretty-much mandatory antenna tuner, etc., the price climbs. I have another idea. Personally, I don't want (another) KW+ amplifier. Too big, too much money, and too much RFI potential (I know, it's not my fault, but I still hate those phone calls). But an extra 6 dB would definitely make a difference in pileups and marginal conditions. What I want to see is a 400-watt KPA400 to *replace* the KPA3 100-watt amp in the K3. It would require beefing up the KAT3 and possibly the heatsink and fans. It would be best to run it on 48v or so; that would give better IMD performance on SSB and make the current draw more reasonable. Possibly Elecraft could also sell a 12/48v power supply. It would also be possible to add a class-A mode for SSB for even cleaner signals. The main thing is that I think this could fit in the existing K3 package, which would make it *very* appealing. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Griffin PowerMate - Is this on the list?
I'm one of the folks on the list of K3 waiters having placed my order in early January. I had a question and tried to use the archives to search it out but I don't find a search option for the archives. I'm wondering if the question, suggestion, recommendation has ever been made to request the attachment of the Griffin PowerMate knob to the K3? http://www.griffintechnology.com/products/powerma te/ With the recent discussion and request for a desktop switching panel for making some of the front panel button pushing easier, it seems the Griffin PowerMate would be an excellent accessory for remote tuning of a VFO frequency. Has this already been mentioned? Do others see the benefit and addition like this? I realize that even if it was approved for addition to the list, it would not be a particularly high priority item. Just knowing that it will eventually be implemented would make the wait worthwhile. After all, I'm learning patience every day as I wait for my own Lisa-gram. Jim - K5LAD It's so simple to be wise. Just think of something stupid to say and then don't say it. -- Sam Levenson === My Web Page - http://www.hayseed.net/~jpk5lad ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Griffin PowerMate - Is this on the list?
Works just fine with MacLoggerDX on my iMac :-) Seriously, thats only going to happen if some form of USB to middleware electronics to then send CAT or something, is going to get written. Far more likely to find it supported in a Logging program that interfaces to the K3 - like er MacLoggerDX (there I said it again). 73 de M0XDF, K3 #174 -- Anyone can do any amount of work, provided it isn't the work he is supposed to be doing at that moment. -Robert Benchley On 17 Mar 2008, at 21:20, [EMAIL PROTECTED] wrote: I'm one of the folks on the list of K3 waiters having placed my order in early January. I had a question and tried to use the archives to search it out but I don't find a search option for the archives. I'm wondering if the question, suggestion, recommendation has ever been made to request the attachment of the Griffin PowerMate knob to the K3? http://www.griffintechnology.com/products/powerma te/ With the recent discussion and request for a desktop switching panel for making some of the front panel button pushing easier, it seems the Griffin PowerMate would be an excellent accessory for remote tuning of a VFO frequency. Has this already been mentioned? Do others see the benefit and addition like this? I realize that even if it was approved for addition to the list, it would not be a particularly high priority item. Just knowing that it will eventually be implemented would make the wait worthwhile. After all, I'm learning patience every day as I wait for my own Lisa-gram. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] : Laptop UPS
Yea the ones that qualify have to say Efficiency Level IV on it (or something like that). Essentially some European group did a study and stated that if you took the passive load of all the unregulated bricks that are in Europe it would total up to one power plant or something like that... I wasn't paying too close of attention as I usually just splat down the same supply that I used prior unless I can find something cheaper. In which case I usually follow the app note and the demo board and all is well... As for the brick its just one more requirement that I have to make sure we get taken care of and that we get the brick labeled properly for all the regulatory garbage... :) But yes California heard about this and was like wow if we get rid of all those passive loads from bricks that are plugged into products that are turned off we'll save all sorts of money. That and the power system in CA already seems a bit fragile at times Works for me... Oregon makes quite a bit of money selling power to you guys!! :) -Original Message- From: Vic K2VCO [mailto:[EMAIL PROTECTED] Sent: Monday, March 17, 2008 7:41 AM To: Brett Howard Cc: Elecraft Users Subject: Re: [Elecraft] [K2] : Laptop UPS Brett Howard wrote: California is now outlawing the use of unregulated transformer based linear supplies in new products. Oh, great. Although as you point out it is possible to make a quiet switcher, it's also cheaper to make one that will wipe out everything for a 100-yard radius. Let me tell you about this high-intensity lamp that I have...actually, it does have some value; it can be used as a noise generator to align the filters in my K2. Now *every* piece of electrical junk will have one! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] [K2] : Laptop UPS
The only product that produces no RFI at all is the pet rock. Even rock has a radiation signature.. BTW - If you are worried about radiation, don't do a walking tour of Edinburgh, Scotland... Granite is 'radio' active Noted! ;) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - Split
Hi, Curious to note that when working split the bandmap in Logger32 doesn't show the switch to VFO-B. Pressing the REV button causes the bandmap cursor to move but not during keying. With the K2 you could see your TX frequency change when in split. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 power cable
Don't worry about doing both... It leaves you that much more sure that you won't lose connection and trust me... The electrons will forgive your soul for doing both! :) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike B Sent: Monday, March 17, 2008 10:34 AM To: Elecraft Reflector Subject: Re: [Elecraft] K3 power cable You either crimp or Solder - not both While it may be easy to prove that doing both is redundant, I see no reason why one *can't* do both, provided you crimp before soldering. I find it rather odd to make such a firm distinction. If I'm planning ahead and remember to bring the crimpers home from work, I'll typically just crimp. Otherwise, I just solder. Sometimes, though, I'll get picky and do both, such as on lines that will be carrying a fair bit of power. 73, Mike KW1ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
People talk about the extra current drain. How much is it? If you go by what W0CZ measured you get this: The current tests before I put in the KPA3. Receive 0.94 to 1.1 A TX (NO POWER) 1.56 A TX 5W 2.56 A TX 10W 3.07 A TX 12W 3.23 A The same test after the KPA3 was installed, Set up and working fine. Receive 0.94 to 1.1 A TX (NO POWER 2.16 A TX 5W 3.10 A TX 10W 3.62 A TX 12W 3.78 A ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KXV3 clarification requested
I thought this reply was an authoritative answer: http://www.nabble.com/Re%3A-KXV3-clarification-requested-p16058211.html I believe Lyle Johnson is an Elecraft employee. Yes, but he is fallible. I just tried it out on my radio and thought that in split mode I could have a different antenna selected but on the same band. I couldn't with the firmware I am running now. So, the correct answer is at present that you have to hit the antenna switch to toggle. Perhaps a future firmware release will let you set up the other antenna for Tx. Sorry, didn't mean to mislead. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Rx Antenna...
The way I read the manual description and diagrams is:- If you want to use a separate RX antenna *without* the KAT3 and *without* the sub-Rx then you *must* have the KXV3... Please correct me if I am wrong... this is of great interest to me -- Dave G. KK7SS '65 MK III Sprite in Richland, WA Two things are infinite, the universe and human stupidity. But I'm not so sure about the universe. ... Albert Einstein. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KAT2 without balun - which doublet length is better?
Hi, I'm going to use my K2 with KAT2 internal ATU to operate a doublet from 80m to 10m including WARC bands without a balun. Among others, Dave's W8FGU home page inspired me to try this. I hope this is not a problem, especially when battery-fed during portable operation, as there is [almost] no HF-connection to the ground (the whole system is 'floating') Quick modelling of 2x20m + 13.5m feeder antenna shows that KAT2 should be able to do the job, as its 20uH and 2400pF are enough on all bands. My question is: can/should I make it easier for KAT2, e.g. choosing other antenna or feeder lentgh or maybe adding/removing a piece of feeder on some bands? Are there some proven length to use? 73 Oleg ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KPA3 for QRP
post from the past ref K3 current draw. Fri, 22 Feb 2008 21:53:25 -0600 From: Kenneth A. Christiansen [EMAIL PROTECTED] Add Mobile Alert To: elecraft@mailman.qth.net Subject:[Elecraft] K3 NR 457 now working in Fargo ND I got a pleasant surprise yesterday when K3 457 arrived. It was ordered June 13 and I got my Lisa Gram last week end. It has KAT3, KBPF3, KXV3, 500 hz filter, 2700 hz filter, 6000 hz filter and the FM filter on back order. I made a special test on it because I wanted to know how the KPA3 changes the current draw. I know others have asked the same question here and never did get an answer so here it is. . The current tests before I put in the KPA3. Receive 0.94 to 1.1 A TX (NO POWER) 1.56 A TX 5W 2.56 A TX 10W 3.07 A TX 12W 3.23 A The same test after the KPA3 was installed, Set up and working fine. Receive 0.94 to 1.1 A TX (NO POWER 2.16 A TX 5W 3.10 A TX 10W 3.62 A TX 12W 3.78 A All the above testes were done with a digital meter on the 10 amp scale. I would say the KPA3 adds a constant 0.6 Amp for any given power level below 12.1 Watts. I started the inventory last night about 6:00 PM and finished it tonight about 8 PM. I had a fire run, slept, went to a meeting etc. so my build time must have been about the magic 10 hours. I sure do like the receiver but have just scratched the surface of what it can do. It was worth the wait. 73 Ken W0CZ - Hope this helps. 73, Ty, W1TF, K1 #1423 waiting for a K3 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Rx Antenna...
That's the way I see it. 73, Ken K3IU Dave G. wrote: The way I read the manual description and diagrams is:- If you want to use a separate RX antenna *without* the KAT3 and *without* the sub-Rx then you *must* have the KXV3... Please correct me if I am wrong... this is of great interest to me -- Dave G. KK7SS '65 MK III Sprite in Richland, WA Two things are infinite, the universe and human stupidity. But I'm not so sure about the universe. ... Albert Einstein. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Elecraft SSB Net - Monday night March 17
Greetings fellow Elecrafters and Elecrafters-to-be! I will take another turn at the mic this evening on 40m. The frequency: 7.190 +/- The time: 6:00 PM PDT, 9:00 PM EDT, and 0100 UTC. Hope to hear you on the frequency! 73, Roger WA7BOC K3 #75 -- I am using the free version of SPAMfighter for private users. It has removed 35 spam emails to date. Paying users do not have this message in their emails. Get the free SPAMfighter here: http://www.spamfighter.com/len ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft - Full Line Manufacturer
I agree with Vic: An amp capable of 300 to 400 watts, 160m through 6m, would be nice. I've been running my current station with a 200 watt rig with great success. I have a K3 on order and I'm looking at amplifiers to go with it. Solid state is a must for auto band switching. Tokyo High Power has come out with a new one, 300 to 400 watts and requires 35 amps at 13.8v. Unfortunately it doesn't cover 160 or 6. A matching Elecraft would be preferred. Rich - N5ZC Vic K2VCO wrote: Lee Buller wrote: Could there be a middle ground where a KW SS amp can come in at an affordable price...say below 1500 to 2000 bucks? I suspect this is hard to do. Although a SS amplifier itself is simple, by the time you get the power supply, the protective circuitry, the pretty-much mandatory antenna tuner, etc., the price climbs. I have another idea. Personally, I don't want (another) KW+ amplifier. Too big, too much money, and too much RFI potential (I know, it's not my fault, but I still hate those phone calls). But an extra 6 dB would definitely make a difference in pileups and marginal conditions. What I want to see is a 400-watt KPA400 to *replace* the KPA3 100-watt amp in the K3. It would require beefing up the KAT3 and possibly the heatsink and fans. It would be best to run it on 48v or so; that would give better IMD performance on SSB and make the current draw more reasonable. Possibly Elecraft could also sell a 12/48v power supply. It would also be possible to add a class-A mode for SSB for even cleaner signals. The main thing is that I think this could fit in the existing K3 package, which would make it *very* appealing. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Rx Antenna...
KK7SS asked: The way I read the manual description and diagrams is:- If you want to use a separate RX antenna *without* the KAT3 and *without* the sub-Rx then you *must* have the KXV3... Please correct me if I am wrong... this is of great interest to me If you want to use a separate RX antenna with the main receiver, you need the KXV3. It doesn't matter whether or not the KAT3 is installed. 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] VP6DX Ducie Island K3 Configuration
A number of people have asked how the VP6DX K3s were configured. Here is the summary of options used on each of their K3s. K3/100 + KAT3 antenna tuner KXV3 second receive antenna option. KFL3A-250 250 Hz, 8-pole roofing filter KFL3A-400 400 Hz, 8-pole roofing filter KFL3A-1.0K 1 kHz, 8-pole roofing filter KFL3A-1.8K 1.8 kHz, 8-pole roofing filter KFL3A-2.8K 2.8 kHz, 8-pole roofing filter 73, Eric WA6HHQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Excellent External Speaker for K2
After replacing the phone jack on my K2, I have been searching for a really good external speaker. One that allows me to use my headphones and mute the speaker when doing so. Well, I had an old Kenwood SP-180 speaker that I had replaced a bad speaker in with a 4 ohm speaker designed for Collins. This particular equipment has audio filters and accepts a 1/4 inch stereo headphone jack. I cleaned it up and it has been in line now for over an hour. The audio filters really help with CW in QRN and smooth out really strong signals that otherwise had a harsh note as they were tuned across. P49V is on 40 meters and is about 40 over S9 and is smooth as silk. The 1/4 inch headphone jack will help, too, as that is what is on the K3 I have ordered (due in early July). I just wanted to pass this along as one can find the old Kenwood speakers for nearly nothing online or at hamfests and they will help K2 audio. 73, Jim, K4ZMV -- View this message in context: http://www.nabble.com/Excellent-External-Speaker-for-K2-tp16108823p16108823.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] : Laptop UPS [OT Direction]
Brett Howard wrote: But yes California heard about this and was like wow if we get rid of all those passive loads from bricks that are plugged into products that are turned off we'll save all sorts of money. Can they spell hot standby? Cold starts are not good for a lot of electronics, to say nothing about frequency stability. BTW, I am a Registered Professional Electrical Engineer with a California (and Oregon and Nevada and Utah) license, at that. That and the power system in CA already seems a bit fragile at times A contrived situation whose blame can be laid squarely on the games being played by the two large private utilities - Pacific Gas Electric and Southern California Edison. Surprising how the Los Angeles Department of Water and Power, a municipally-owned major electric utility, doesn't have those reliability problems. Works for me... Oregon makes quite a bit of money selling power to you guys!! :) Is it Oregon or is it Bonneville Power Administration, a Federal agency? But is doesn't seem to trickle down. Both Pacific Power and Portland General Electric buy significant amounts of cheap hydro power from BPA but seem to have raised rates nearly double in the decade that we've been here (or maybe we just use more, what with my comm room on standby power 24/7... including my K2, of course! g 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Another K2 speaker jack failure
I know several others have reported this in recent times, but now it's my turn! My newly-built K2's external speaker jack just decided to fail, and while I'm traveling with it to boot! I have a small external speaker that I plugged into it, so I'm still operational, but the rig thinks it's still got an external speaker plugged in when I unplug it. Annoying, but not the end of the world. I know how difficult and exasperating it can be from the designer's standpoint to have parts fail like this. The design is not faulty, only the parts source. Probably not enough spring in the contacts. I'll probably replace mine with one from my junk box. Guaranteed to be from a different source. 73, Dave K7DAA http://www.k7daa.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] NAQCC Sprint Wednesday night!
This coming Wednesday evening will be the monthly NAQCC Sprint for March, 2008. I will refer you to the proper URL: http://www.arm-tek.net/~yoel//sprint200803.html There you will find all the details as to time, frequencies, this month's Special Award, which will be dedcated to those of us who use indoor antennas This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate; but you must use QRP power levels to compete for awards. Come join us and have a real good time! 73 de Larry W2LJ NAQCC #035 __._,_.___ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KAT2 without balun - which doublet length is better?
Hi Oleg, Well, I wish I could take credit for implementing this configuration, but it was at the urging of Ron, AC7AC and Don, W3FPR who stated that if the doublet was fairly well balanced, that connecting it directly to the KAT2 should work well and eliminate any losses due to the balun. There was a pretty good discussion of this about a year ago I think. The doublet I used was 66' across with about a 33' feeder. I was able to get a good match 80m - 10m. The only bands I had some trouble tuning were 17m and 12m. Again, at the suggestion of Ron, I added a 6 foot stub feeder and got it to tune up pretty well on those bands. I wish I could tell you that I modeled this setup and designed it to work properly, but alas I did not. I simply built it up with convenient lengths and stuck it up in a tree and had a ball with it all summer long. As I learn more about antennas, I will surely come back and revisit it and try to figure out why it seemed to work very well for me. One thing I did notice toward the end of summer and beginning of fall, is that I started to have a harder time getting a match on 20m. My guess is that as time and weather took some toll on the antenna that it became somewhat unbalanced. It eventually succumbed to a branch knocking down one leg after a nasty storm here and I took it down for the season. Looking forward to putting it back up when the weather gets nice here. In fact, I'm looking to use my K3 out there this summer as well. I just bought a solar controller from Don Brown, KD5NDB, and may try to run the K3 (and K2) QRP from a solar power configuration. Sounds like fun anyway. If I can answer (unscientifically) any more questions, let me know. Take care 73, Dave W8FGU -Original Message- From: [EMAIL PROTECTED] [mailto:elecraft- [EMAIL PROTECTED] On Behalf Of ub5_073_oleg Sent: Monday, March 17, 2008 5:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KAT2 without balun - which doublet length is better? Hi, I'm going to use my K2 with KAT2 internal ATU to operate a doublet from 80m to 10m including WARC bands without a balun. Among others, Dave's W8FGU home page inspired me to try this. I hope this is not a problem, especially when battery-fed during portable operation, as there is [almost] no HF-connection to the ground (the whole system is 'floating') Quick modelling of 2x20m + 13.5m feeder antenna shows that KAT2 should be able to do the job, as its 20uH and 2400pF are enough on all bands. My question is: can/should I make it easier for KAT2, e.g. choosing other antenna or feeder lentgh or maybe adding/removing a piece of feeder on some bands? Are there some proven length to use? 73 Oleg ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Microphone and filter question
I know this sounds lazy but what desk mic. could I order, plug directly into a K3 and operate with no wiring changes? Yes, a good one. Which is better, the 200 hz 5pole or 250 hz 8 pole? Which is best for the 160m cw test? Steve Ellington [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] Excellent External Speaker for K2
Hi Jim, I'm using a Kenwood SP-230 speaker with my K2. It also has the audio filters and does a great job with the K2. Gary, N7HTS Jim K4ZMV wrote: After replacing the phone jack on my K2, I have been searching for a really good external speaker. One that allows me to use my headphones and mute the speaker when doing so. Well, I had an old Kenwood SP-180 speaker that I had replaced a bad speaker in with a 4 ohm speaker designed for Collins. This particular equipment has audio filters and accepts a 1/4 inch stereo headphone jack. I cleaned it up and it has been in line now for over an hour. The audio filters really help with CW in QRN and smooth out really strong signals that otherwise had a harsh note as they were tuned across. P49V is on 40 meters and is about 40 over S9 and is smooth as silk. The 1/4 inch headphone jack will help, too, as that is what is on the K3 I have ordered (due in early July). I just wanted to pass this along as one can find the old Kenwood speakers for nearly nothing online or at hamfests and they will help K2 audio. 73, Jim, K4ZMV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Amplifier Vacuum Tubes
WB6TMR wrote: Having said that, I must admit solid state is the future, and when the day comes that I can afford a solid state amp I will buy one. And therein lies the problem. It is bad enough that decent HF tube amplifiers are so expensive... but, the available solid state models are, quite frankly, a joke when it comes to price. Four, Five.. Six thousand dollars or more.. for an amplifier ?? The trouble is, I'm not laughing. At those prices, I'll stick with tube amps... until they are just no longer available... My guess is that solid state amps will, eventually, become a bit more reasonable in terms of price. Actually, 5 grand would be better spent on improvements to an antenna system. 73, Joe - W1AIU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Excellent External Speaker for K2
Hello, I finished my base K2 about a week ago. I installed the Noise blanker and SSB modules, with no problems. Next I installed the DSP module. The audio quality went to Sh**. I spent two days playing around with filter adjustments, DSP settings to no avail. Tonight I plugged in an external speaker. Magic!! The distortion is gone, it sounds great. For some reason I was using a headset until I put in the DSP module. The internal speaker on the K2 is so bad, it is almost unusable. Unless the one I have is defective. I have been having it sit side by side with my TR-7, wondering why I ever bought a K2. Now with a working speaker, I know why I bought a K2. It really is a very nice receiver. Best, DW Holtman WB7SSN - Original Message - From: Gary Krause [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 8:27 PM Subject: Re: [Elecraft] Excellent External Speaker for K2 Hi Jim, I'm using a Kenwood SP-230 speaker with my K2. It also has the audio filters and does a great job with the K2. Gary, N7HTS Jim K4ZMV wrote: After replacing the phone jack on my K2, I have been searching for a really good external speaker. One that allows me to use my headphones and mute the speaker when doing so. Well, I had an old Kenwood SP-180 speaker that I had replaced a bad speaker in with a 4 ohm speaker designed for Collins. This particular equipment has audio filters and accepts a 1/4 inch stereo headphone jack. I cleaned it up and it has been in line now for over an hour. The audio filters really help with CW in QRN and smooth out really strong signals that otherwise had a harsh note as they were tuned across. P49V is on 40 meters and is about 40 over S9 and is smooth as silk. The 1/4 inch headphone jack will help, too, as that is what is on the K3 I have ordered (due in early July). I just wanted to pass this along as one can find the old Kenwood speakers for nearly nothing online or at hamfests and they will help K2 audio. 73, Jim, K4ZMV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Excellent External Speaker for K2
Hello, On Ebay, the Kenwood SP-230 speaker runs from $85.00 to $202.00, looking at completed auctions. Best, DW Holtman WB7SSN - Original Message - From: Gary Krause [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 8:27 PM Subject: Re: [Elecraft] Excellent External Speaker for K2 Hi Jim, I'm using a Kenwood SP-230 speaker with my K2. It also has the audio filters and does a great job with the K2. Gary, N7HTS Jim K4ZMV wrote: After replacing the phone jack on my K2, I have been searching for a really good external speaker. One that allows me to use my headphones and mute the speaker when doing so. Well, I had an old Kenwood SP-180 speaker that I had replaced a bad speaker in with a 4 ohm speaker designed for Collins. This particular equipment has audio filters and accepts a 1/4 inch stereo headphone jack. I cleaned it up and it has been in line now for over an hour. The audio filters really help with CW in QRN and smooth out really strong signals that otherwise had a harsh note as they were tuned across. P49V is on 40 meters and is about 40 over S9 and is smooth as silk. The 1/4 inch headphone jack will help, too, as that is what is on the K3 I have ordered (due in early July). I just wanted to pass this along as one can find the old Kenwood speakers for nearly nothing online or at hamfests and they will help K2 audio. 73, Jim, K4ZMV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Delivery notice
Delivery notice today for K3/100 ordered on 9-9-2007 shipped 2 day ups so its almost build time! George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Possible misfeature, K3 RTTY DTF
I find if I turn the RTTY dual-tone filter on when the width is wider then 400 Hz and then off, the bandwidth doesn't return to what it was before the use of the DTF, but is left at the narrow bandwidth appropriate to the DTF. It seems to me that it'd be correct to revert to the previous width setting. Also, turning on the DTF doesn't switch roofing filters, either. Am I missing something? 73, doug ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Possible misfeature, K3 RTTY DTF
I find if I turn the RTTY dual-tone filter on when the width is wider then 400 Hz and then off, the bandwidth doesn't return to what it was before the use of the DTF, but is left at the narrow bandwidth appropriate to the DTF. It seems to me that it'd be correct to revert to the previous width setting. Also, turning on the DTF doesn't switch roofing filters, either. Am I missing something? I can duplicate this except the critical bandwidth is 500Hz, not 400Hz. I hadn't noticed this previously because I never turn on the DTF with main DSP bandwidth greater than 400-500Hz. (I typically operate RTTY with a DSP bandwidth of 200Hz plus the DTF.) The DTF forces any DSP bandwidth greater than 500Hz, back to 500Hz. In other words 500Hz is the widest DSP bandwidth available with the DTF. However, I agree that turning off DTF should return the DSP bandwidth to what it was before. I'm sure Wayne will allow this to be added to his list unless there is some technical reason it can't be changed. I hope the priority on this issue is low, though, because the firmware engineers should be working on more important things. 73, Ed - W0YK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Delivery notice
WOW! They are really starting to make headway on the backlog! 73 Matt W5LL K2# 4778 George Cortez Jr wrote: Delivery notice today for K3/100 ordered on 9-9-2007 shipped 2 day ups so its almost build time! George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re best desk mic for K3
Hi Steve: I would very much recommend getting a Shure 444D desk microphone for your K3. I am using one with excellent transmit audio. It's a very simply job to connect the appropriate mic connector to it. 73 from Fern VE7GZ - Original Message - From: n4lq [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 8:02 PM Subject: [Elecraft] Microphone and filter question I know this sounds lazy but what desk mic. could I order, plug directly into a K3 and operate with no wiring changes? Yes, a good one. Which is better, the 200 hz 5pole or 250 hz 8 pole? Which is best for the 160m cw test? Steve Ellington [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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.7/1331 - Release Date: 3/16/2008 10:34 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] Excellent External Speaker for K2
I just use a good ol' set of amplified PC speakers. Works great for me... Or maybe I don't realize what I'm missing since it's the only thing I've ever used?!?!?!!? 73 Matt W5LL K2# 4778 DW Holtman wrote: Hello, On Ebay, the Kenwood SP-230 speaker runs from $85.00 to $202.00, looking at completed auctions. Best, DW Holtman WB7SSN - Original Message - From: Gary Krause [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, March 17, 2008 8:27 PM Subject: Re: [Elecraft] Excellent External Speaker for K2 Hi Jim, I'm using a Kenwood SP-230 speaker with my K2. It also has the audio filters and does a great job with the K2. Gary, N7HTS Jim K4ZMV wrote: After replacing the phone jack on my K2, I have been searching for a really good external speaker. One that allows me to use my headphones and mute the speaker when doing so. Well, I had an old Kenwood SP-180 speaker that I had replaced a bad speaker in with a 4 ohm speaker designed for Collins. This particular equipment has audio filters and accepts a 1/4 inch stereo headphone jack. I cleaned it up and it has been in line now for over an hour. The audio filters really help with CW in QRN and smooth out really strong signals that otherwise had a harsh note as they were tuned across. P49V is on 40 meters and is about 40 over S9 and is smooth as silk. The 1/4 inch headphone jack will help, too, as that is what is on the K3 I have ordered (due in early July). I just wanted to pass this along as one can find the old Kenwood speakers for nearly nothing online or at hamfests and they will help K2 audio. 73, Jim, K4ZMV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 #6425 low/no sensitivity - suggestions?
Well, I took my lack-of-sensitivity analysis to the next stage and performed the Signal Tracing checks, as described in the Elecraft K2 Manual. Injected the 0,14Vrms into the antenna connector when appropriate, and kept the overload diodes (D40,D41) disconnected. In short, the DC voltages are a little low but probably close enough to normal, except U12 pin 5 (AGC) which measured 3.5V rather than 5.0V. All RF voltages appeared reasonably close to the K2 suggestions, up to and including U12 pin 4 (U12 input). The pin 4 voltage was 2.0V rather than the suggested 0.4-0.8V. However, the output signals from U12 seem to be nonexistent: U12p8 is 0V at all times, irrespective of the signal level injected into the antenna terminal. Subsequent signals are zero, as well (U11 input through pin1, etc.). Again, any suggestion on a plausible cause - a failed component or bad soldering? Has anyone run into this before, and have suggestions to try out? 73 - Kristinn, TF3KX TF3KX wrote: Hi - I am in the process of constructing my K2 and have two problems that may or may not be related. Problem 1: Low, almost nonexistent RX sensitivity during Alignment II. I can manage to copy a carrier from my MFJ antenna analyzer and I have used this to verify that IF and input circuits are peaked. Injecting this signal into the antenna terminal I can also verify that PRE and ATT work as expected, as well as the crystal different filter bandwidths. Using an IF carrier from the MFJ I have poked a low level signal into various parts of the IF chain. An interesting thing is that I hear this signal much weaker in the K2 audio when I touch it to the INPUT of IF-amp U12 (MC1350) than to its OUTPUT. In other words, that IF amp does not amplify, but rather attenuate the injected signal. I have re-checked all connections around U12, re-flowed the solder, checked T7 and removed the overload diodes D40 and D41 - with no improvement. Problem 2: Low 8V regulator output, 7.56V. As a result I could only adjust the U2 pin 5 voltage to 3.60V using R1, in Alignment I. Probing the voltages derived from the 8V supply, they are of course 5-10% lower than expected. All DC voltages on U12 are consequently a little low, but otherwise not abnormal. I plan to get a local replacement for the 8V regulator, just in case. But does anyone have comments on the low sensitivity? Would the low 8V level be a possible cause for this? 73 - Kristinn, TF3KX -- View this message in context: http://www.nabble.com/K2--6425-low-no-sensitivity---suggestions--tp16086168p16113915.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] FS: K2 s/n 5601
Hi, I've decided to sell my K2, s/n 5601. A little over a year and a half old. I just don't use it all that much. It was professionally assembled by one of the K2 Builders-for-Hire. Works fine, no problems. Includes the following: K2, QRP vers KAF2, Internal Audio Filter Real Time Clock KBT2, Battery option, w/battery KIO2, Aux I/O KSB2, SSB option FDIMP, the Finger Dimple Kenwood MC-60A mic All original manuals At current kit prices, over $1000 + $140 to $150 for the mic. Asking $850.00 + actual shipping, via USPS (UPS just has too many surprise surcharges). US only, sorry, no DX, I don't want to have to deal w/customs, etc. Payment via PayPal. Please reply directly to me at: arsn8pvz at yahoo dot com, not via the listserve. Reasonable counter-offers considered. I can provide pictures of the K2 if requested. Thanks. 72 de N8PVZ ---bernie gaffney 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] RTTY basics
I would like to try RTTY with my new K3 but I know absolutely nothing about setting up for operating. I need a basis to be able to use the instructions in the Owner's Manual. Such things as what tones to use or speeds or anything else that needs to be set. Where would I look to find a primer on operating RTTY and the other digital modes? Is this information available on line? Nelson, K8DJC -- I am using the free version of SPAMfighter for private users. It has removed 5023 spam emails to date. Paying users do not have this message in their emails. Get the free SPAMfighter here: http://www.spamfighter.com/len ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] RTTY basics
I would like to try RTTY with my new K3 but I know absolutely nothing about setting up for operating. I need a basis to be able to use the instructions in the Owner's Manual. Such things as what tones to use or speeds or anything else that needs to be set. Where would I look to find a primer on operating RTTY and the other digital modes? Is this information available on line? www.rttycontesting.com covers the basics as well as more advanced topics. It is based on WriteLog and MMTTY, but all the basic knowledge is included. There is a link to Don's Getting Started in RTTY tutorial, which is where I recommend you go. You can ignore the material on MMTTY if you want to start out using the encoder/decoder in the K3. The ARRL publishes a great book that gives an overview of all the digital modes. 73, Ed - W0YK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
