[Elecraft] Elecraft Net Errata
KB8NMZ - Paul - MI - K2 - 4818 (not 4808) Sorry :( KJR -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.322 / Virus Database: 266.11.15 - Release Date: 5/22/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 CW Net Report for May 22-23, 2005
Wow, talk about ridden hard and put away wet! The second net took from 0257z until 0317z to dig the last person out. But I am getting ahead of the story. After that net I had to go outside to discuss the precommercial thin. We'll get about half our fir trees taken out. May just break even between chipping up some and pulping the others. Then the rest will grow rapidly with the space given them. But this detail made my report later than normal. 20 meters was a harbinger of things to come. It was much better than it had been in two weeks but nothing like what 40 meters was to bring. Dan, WG4S, sent me a taped version of his portion of the 40 meter net. I had given him a 599 for the signal from his HW-101. Fair report but his recording shows once again that signals are not always reciprocal. I was S3 to S5 at times during the QSB, QRM, and QRN. It will be interesting to see how well I can copy my own fist ;) On to the lists. On 14051 kHz at 2300z: VE3XL - Ric - ON - K1 - 968 WO3E - Bob - MD - K2 - 4565 AB9V - Mike - IN - K2 - 3993 WG4S - Dan - GA - HW 101 - 3283 KA3WMJ - Ken - PA - K2 - 697 N7AF - Dave - AZ - K2 - 4795 On 7045 kHz at 0257z: K7TQ - Randy - ID - K2 - 213Just about made my ears bleed with your signal! VE3XL - Ric - ON - K1 - 968 N9IV - Russ - IN - K2 - 4650 K7KBS - Geoff - MT - K1 - 1158 Welcome aboard! KH6NO/M - Willie - K1 - 1592 or was this a K2??? N2FQ/6 - Fernando - CA - K2 - 2330 WA7BOC - Roger - WA - K2 - 755 K2HYD/7 - Ray - UT - KX1 - 608 Just too close to work me on 20 meters. Ghost guesting! WG4S - Dan - GA - HW 101 - 3283 KO0K - Ben - OH - K2 - 3867 Sorry Ben your name simply escaped me. Must be getting old :( N7AF - Dave - AZ - K2 - 4795 KL7V/5 - Sam - OK - ATS-3 AK2B - Tom - NY - K2 - 4482 Your signal was bouncing between ESP and not there at all. We got it done though!! KB8NMZ - Paul - MI - K2 - 4808Welcome to ECN! AB9V - Mike - IN - K2 - 3993 Whew! It's getting late so please forgive any errors I may have made in the above lists. If there are any errors they will be corrected in the database and posted to the Reflector. Thank you all for letting me have a very good time. Digging for the weak ones makes me that much better. Maybe one day I'll get good at this. Welcome to a few new faces and welcome back to some more seasoned guests. It was a pleasure to hear you all this evening. 73, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.322 / Virus Database: 266.11.15 - Release Date: 5/22/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Larry Phipps wrote: You may be right on a couple of counts. I am only a QRPer in the field, and tend to be more more a "100-watter" at home. Since I had 90dB of dynamic range to play with, I decided to use it all, thus the 2500W top end I have a very good (and not cheap) QRO wattmeter which is highly inaccurate below about 20 watts. Sometimes I want to measure QRP power levels, so I am stuck buying another instrument. If your unit had been available when I bought the QRO unit, I certainly would have chosen it. Why have two meters when one can do the job? Would a 100W or 200W top-end offend people? Don't know. I've already been warned to moderate my expression of opinion about people who take offense at the concept of using the minimum amount of power necessary to communicate in any given case -- from QRP to full legal power. So I won't express it again! However I will say that for me, being useful at both ends of the scale would be a selling point. From a marketing point of view, since the great majority of hams have 100 watt transceivers, limiting a meter with a 90 db dynamic range to less than 200 watts full scale would be silly. As far as having a remote coupler, this is almost a necessity for a 1.5KW + unit because nobody wants fat coax pulling the unit off the table. But at the 200 watt level, one can always use RG58 jumbers to and from the meter, even if the antenna itself is fed with thicker coax. So maybe you might add a less expensive 200-watt maximum unit with a built-in coupler to your line (but keep the QRP-to-2500 watt version). -- 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] Logging computer?
Here is what I have found: Laptops often have less shielding and produce more noise, and the switching supplies can be noisy. I have found a Sony Vaio to be noisy and a Toshiba Libretto and an IBM 500e to be quieter. The sound cards are often problematic, if you intend to do PSK or other digital modes, and a USB soundpuck can help. 73, Leigh / WA5ZNU On Sat, 21 May 2005 6:35 pm, Jeff Burns wrote: A laptop computer seems like the ideal companion for the K2. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] It's Island Night!
Incredible what a few hours this afternoon tossing the 66 ft wire into the backyard trees can do. After checking in with Kevin on 20meter ECN with #4565, later tonight I worked CO, TK, and 3B8 with #4565! Amazing! 73, Bob, WO3E ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Yes, it can be controlled by computer and I supply Windows freeware to do so. The SWR alarm beeps now, and I could add the other features. I think I like cw better than voice, and I like the idea of a variable pitch tone for tuning. Variable tone and cw output would be very easy to add even to the hardware, with nothing more needed than a small speaker/transducer. Larry N8LP Buddy Brannan wrote: Y'know what would make it appeal to me? (Three guesses. C'mon, if you know me, this one should be easy!) OK, OK. No one knows me. *LOL* Fine. I gather it can be computer controlled, but how 'bout either morse or voice readout, as well as a continuous tone for relative readings (i.e. to tune finals or antenna tuners by ear). Something like what the RF Concepts P2000CW used to offer. Closest thing I know of to this would be the newly available LDG TW-1 talking SWR/watt meter. Anyway. ... . ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Thanks for the input Eric. You may be right on a couple of counts. I am only a QRPer in the field, and tend to be more more a "100-watter" at home. Since I had 90dB of dynamic range to play with, I decided to use it all, thus the 2500W top end (I also picked 2500W because it represents 2dB of headroom over 1500W... and indicates to high duty cycle users that there is some design headroom). I also see the E-meter as more of an accessory for K2 users, which is what I have, and only selected the EC1 style case because that's the size I need. I really don't expect many K1 owners, or probably any KX1 owners to be interested in my kit, but the K2 is a different story in my opinion. The K2 is not a bare bones rig by any stretch... just a low power ( w/o KPA100). Owners of the more portable gear will undoubtedly want a meter with small size, low power consumption and low price. I could easily offer a lower cost, smaller coupler for "QRP-only", and change the power range so that it covers .1 microwatt to 20W for example, instead of .01 milliwatt to 2500W in the current config. That would save considerable money as well, but would not work for you if you add a KPA100. Would a 100W or 200W top-end offend people? Don't know. It would also save money to put the coupler in the case with the meter as opposed to a remoteable coupler, which would be easy with a low-power coupler like the one in the T1. I suspect part of the problem is that a company associated with expensive beams offered the table space to me... thereby skewing the type of op who was likely to see my meter. I don't think it's appropriate to post prices here, but I will put them on the website in a few minutes for those who are interested. Larry N8LP EricJ wrote: Hi Larry, I saw your original announcement and checked your web site. At the time, I thought it was a remarkable piece of equipment and I still do. I'm not surprised the QRO guys were very interested. But I am surprised that you don't understand why more QRP ops have not expressed interest. For many of us QRP types, "Less is More". That's what attracted us to QRP in the first place. Not the ability to get crappy signal reports as a reward for running low power, but the ability to get any signal report with "relatively" simple equipment. An SWR/wattmeter that seems to be more sophisticated than my K1 isn't exactly at the top of my shopping list even if it does match it in size. And the very idea of owning an instrument with a 2500W range flat turns me off. (Yes, I could just ignore it). Of course, that might just be me. Others might see that as an appealing feature. My purpose is not to knock your SWR/Wattmeter. As I said it is a remarkable instrument. It may very well be the best QRP/QRPp wattmeter out there; it has the right range and resolution to fill that bill. You wouldn't be the first manufacturer to wonder why customers don't see the same value you see in your product. It may be as simple as getting back in touch with the customers you are trying to appeal to. You obviously are making an impact on the QRO ops. It might be worth figuring out what QRP ops are looking for in an SWR/wattmeter. Also, I can't seem to find any price for the SWR/Wattmeter on your website. I understand you were taking orders at Dayton so pricing must have been established. Maybe you could share it here. Eric KE6US ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Y'know what would make it appeal to me? (Three guesses. C'mon, if you know me, this one should be easy!) OK, OK. No one knows me. *LOL* Fine. I gather it can be computer controlled, but how 'bout either morse or voice readout, as well as a continuous tone for relative readings (i.e. to tune finals or antenna tuners by ear). Something like what the RF Concepts P2000CW used to offer. Closest thing I know of to this would be the newly available LDG TW-1 talking SWR/watt meter. Anyway. ... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Hi Larry, I saw your original announcement and checked your web site. At the time, I thought it was a remarkable piece of equipment and I still do. I'm not surprised the QRO guys were very interested. But I am surprised that you don't understand why more QRP ops have not expressed interest. For many of us QRP types, "Less is More". That's what attracted us to QRP in the first place. Not the ability to get crappy signal reports as a reward for running low power, but the ability to get any signal report with "relatively" simple equipment. An SWR/wattmeter that seems to be more sophisticated than my K1 isn't exactly at the top of my shopping list even if it does match it in size. And the very idea of owning an instrument with a 2500W range flat turns me off. (Yes, I could just ignore it). Of course, that might just be me. Others might see that as an appealing feature. My purpose is not to knock your SWR/Wattmeter. As I said it is a remarkable instrument. It may very well be the best QRP/QRPp wattmeter out there; it has the right range and resolution to fill that bill. You wouldn't be the first manufacturer to wonder why customers don't see the same value you see in your product. It may be as simple as getting back in touch with the customers you are trying to appeal to. You obviously are making an impact on the QRO ops. It might be worth figuring out what QRP ops are looking for in an SWR/wattmeter. Also, I can't seem to find any price for the SWR/Wattmeter on your website. I understand you were taking orders at Dayton so pricing must have been established. Maybe you could share it here. Eric KE6US -Original Message- I was surprised I didn't see more QRPers though, since the E-meter is an outstanding QRP wattmeter for main station use, with tons of high-end features, and will have a case that closely matches the K1/EC1 in the production version. I got more orders from the QRO guys than QRPers, and they mostly wanted assembled versions. Larry N8LP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
I want to thank all Elecrafters who stopped by the SteppIR booth to see my prototype E-meter wide dynamic range digital wattmeter kit. Thanks especially to Eric who offered words of encouragement... a real gentleman. I was surprised I didn't see more QRPers though, since the E-meter is an outstanding QRP wattmeter for main station use, with tons of high-end features, and will have a case that closely matches the K1/EC1 in the production version. I got more orders from the QRO guys than QRPers, and they mostly wanted assembled versions. If you missed the show, or my original announcement, check out the E-meter at www.telepostinc.com/n8lp.html. If you like homebrewing, the E-meter will also be featured in an upcoming issue of QEX. Larry N8LP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] SRI OM
I just had to try the HW-101 on the net tonight. I REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY REALLY love my K2 now. The front end of the Hot Water-101 is about 5 KCPS wide, and you didn't wiggle the needle at all. There were three, very clear QSO's in the passband, and you weren't one of them. I got a few sentences from over's with others, but you always fell into the mud right about when you called QNI? Anyhow, I heard you say DAN serveral times, and that I was QNI, so I guess I made it. I didn't get you the serial number, tho. Maybe on 40. Anyhow, your pitch was drifting down a bit after my longer transmission, so I guess I was drifting up - You are, of course - look at your name, Kevin - rock solid. I tweaked it up a bit before my 73 dit dit, but I don't know if you heard that at all. It's hard to believe I "learned" CW on a front-end like that. Strange that I can copy S-0 sigs with several others at S-5 nearby. "A mind is a terrible thing." Well, copy is too generous. Occasionally make out words, yeah, that's the ticket; like your call, my call, DAN, and TOO LITE RIGHT NOW. Funny, I had exactly ONE qso on the thing before modifying it. The sidetone would blow your socks off. About the time I answered a CQ, I heard thunder. So, I gave a quick RST, OP, QTH, thunderstorm's a coming, 73 and QRT'd. Then I grabbed my scope. The sidetone was injecting 1.2 Volts into the INPUT of the Audio amplifier. I pulled a 1M resistor and replaced it with a 10M. Now, it doesn't hurt to push down the key. Now, if I could just figure out what a "phase shift network" is, and how to get it lower in frequency by about 400Hz, so I can QSO at a reasonable CW note. The HW-101 is designed for a 1KCPS note, and mine is offset somehow, so at zero beat, the received note is about 130Hz higher than the sidetone. It's quickly uncomfortable at that high a pitch. I'll try at 0200Z anyhow. Dan / WG4S / K2 #2456 - HW101 # shhh! (It's a secret until 0200) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
"At the FDIM hotel, Wayne was driving the new amp with a K2/100...wah wah wah wah...drive of 50W...wah wah wah wah fully constructed model...wah wah wah wahmatte black cabinetwah wah wah wah...they had a prototype watt meter..about the size of the T1...Wah..." U QRP wattmeter Now THAT's interesting... Heh heh heh. Eric KE6US ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
At the FDIM hotel, Wayne was driving the new amp with a K2/100, turned down to about 40W. FCC apparently requires a minimum drive of 50W to create full output on an amp of this size. It didn't sound like they had made it through acceptance yet... But the delivery was 3 - 4 months away at minimum (fall?) for the initial offering. They were toying with both a fully constructed model, and a partial kit (switching power supply and power output modules built). Price has not yet been set as design and suppliers were no doubt not finalized. However, save your money. This will NOT be "petty cash". I imagined prices in the $3k range - give or take. The prototype was in a matte black cabinet, estimated at 18"w X 6"h x 18"d. But I believe the weight was quoted at a modest 35#. Also, while I didn't get a chance to inqurie, they had a prototype watt meter at Hamvention. About the size of the T1 Steve aa8af ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
I believe Eric told me it'll need around 50W drive .. I'm assuming a K2-100 (I only saw the pics, was busy with the piggy banquet last night) de John/W1RT On 5/22/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Was it a K2?.or a 100 watt K2/100? > > Rich K2CPE > K2 #1102 > > >It was driven with about 30-40W from a K2. > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, 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] OT: Drake R-4XC Question
Recently I saw an exchange about the differences in rx experience of the Elecraft K2 and the Drake R-4XC. Is there a Drake list out there I could join which would be a more appropriate forum to discuss this more in depth so I do not waste bandwidth on the the Elecraft list? dt . ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Was it a K2?.or a 100 watt K2/100? Rich K2CPE K2 #1102 >It was driven with about 30-40W from a K2. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: [Norton AntiSpam] Re: [Elecraft] How Do Elecraft Revision Sheets Work?
Hi Jack, Thanks for this, it makes good sense. I'm trying to work out what's the best way of tracking the minor improvements/changes that are made along the way, especially to the optional add-ons, and to catch up with any that are worthwhile. Mike VK1KCK K2#2599 -Original Message- From: Jack Brindle [mailto:[EMAIL PROTECTED] Sent: Monday, 23 May 2005 2:16 AM To: Elecraft Reflector Cc: [EMAIL PROTECTED]; Gary Hvizdak Subject: [Norton AntiSpam] Re: [Elecraft] How Do Elecraft Revision Sheets Work? > Can someone please explain how Elecraft's revision sheet numbering > works? > For example, does a sheet numbered B-3 include all of the changes > described > in B-1 and B-2, ie are the sheets accumulative? What causes an > "alphabetical" level change? Etc etc Errata sheets show manual changes, and are labeled as to the revision of the product's manual to which they correspond. If the product's manual is at Rev B, then the errata sheet will show rev B. After that, the number is the sequence number for the sheet. If it is the first errata for the rev B manual, it will be B-1. Hopefully there won't be many errors, and we will catch them all in the first sheet. If not, then the second one will list all changes (making it cumulative). When we issue the next version of the manual (Rev C in this case) it should catch all the errata, and so those sheets will go away. Should the Rev C manual later need a change, it would be labeled C-1... Make sense? - Jack Brindle, W6FB - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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/XV144 Power Overshoot
Hmmm Maybe the same is causing my "Hi Curr" indication on HF occasionally. 2577 - Original Message - From: "Dick Hanson" <[EMAIL PROTECTED]> To: "'Glenn McNeil'" <[EMAIL PROTECTED]>; Sent: Sunday, May 22, 2005 6:18 AM Subject: [Elecraft] K2/XV144 Power Overshoot Hi Glenn... You have done a good job of sleuthing and pondering the various solutions. Bottom line is that you may well need to communicate via email with the boys at Elecraft about this. If they have had other similar reports (or even if they have not), they will try for a solution. Also, you may well get a response from other VHFers that have been down this road. First, I believe you're correct in figuring it is the K2 and not the transverter. I have run into exactly the same issue with one of my VHF combos. I have a Yaesu FT-897 driving a Lunar 2 meter amp (pair of 3CPX800, with very sensitive grid trip circuitry). Same exact problem. Yaesu tech support told me how to adjust some of the ALC circuitry to "tune out" or at least minimize the initial ALC related overshoot. This helped a lot. Then I "slowed down" the pulse in the grid trip circuit in the amp by adding slightly more capacitance to one of the time constant caps. The combination of these two things solved my problem. I did not try the in-line attenuator approach, but that may be helpful too. You could easily fashion a 3 db attenuator out of a length of RG-174 mini coax. It has a healthy amount of "loss" per foot, so you could quickly calculate how many feet you would need to arrive at 3 db. I have both the XV-50 and XV-144 now to use with my K2 but have not yet used them in our VHF contest station with an external amp to observe whether this phenomenon exists. I will hasten to do some testing and get back to you on this. Good luck. Dick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Glenn McNeil Sent: Saturday, May 21, 2005 22:55 To: elecraft@mailman.qth.net Subject: [Elecraft] K2/XV144 Power Overshoot ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Amp pics?
I have been hearing stories about this amp since late last year but no one has shown a picture yet. Maybe the folks belonging to the in group are told not to disseminate photos or even allowed to take them. As far as I can tell we will be told the rest of the story late this year. Kevin. On Sat, 21 May 2005 21:46:38 -0700 (PDT), paul hendershott <[EMAIL PROTECTED]> wrote: Just curious about the look of the new Elecraft Amp - if it was on display at Dayton, were there any pictures available from Wayne and Eric or passers-by? -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.322 / Virus Database: 266.11.14 - Release Date: 5/20/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] How Do Elecraft Revision Sheets Work?
Can someone please explain how Elecraft's revision sheet numbering works? For example, does a sheet numbered B-3 include all of the changes described in B-1 and B-2, ie are the sheets accumulative? What causes an "alphabetical" level change? Etc etc Errata sheets show manual changes, and are labeled as to the revision of the product's manual to which they correspond. If the product's manual is at Rev B, then the errata sheet will show rev B. After that, the number is the sequence number for the sheet. If it is the first errata for the rev B manual, it will be B-1. Hopefully there won't be many errors, and we will catch them all in the first sheet. If not, then the second one will list all changes (making it cumulative). When we issue the next version of the manual (Rev C in this case) it should catch all the errata, and so those sheets will go away. Should the Rev C manual later need a change, it would be labeled C-1... Make sense? - Jack Brindle, W6FB - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] How Do Elecraft Revision Sheets Work?
Mike wrote ... Can someone please explain how Elecraft's revision sheet numbering works? For example, does a sheet numbered B-3 include all of the changes described in B-1 and B-2, ie are the sheets accumulative? What causes an "alphabetical" level change? Etc etc Hi Mike, If you are referring to errata sheets then to the best of my knowledge, the letter corresponds to the board's revision letter, the number indicates how many errata sheets have been issued against that rev. of the board. No, they are not cumulative. You will likely also find the date of the revision sheet useful. 73, Gary, KI4GGX K2 #4067 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] How Do Elecraft Revision Sheets Work?
Hi all, Can someone please explain how Elecraft's revision sheet numbering works? For example, does a sheet numbered B-3 include all of the changes described in B-1 and B-2, ie are the sheets accumulative? What causes an "alphabetical" level change? Etc etc Mike VK1KCK K2# 2599 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Anything News at Dayton from Elecraft??
Got to see the new amp in action last night at the Crowne Plaza hotel - this is where the main DX and contest suite is at in downtown Dayton. About 11PM Eric showed up with the amp, a K2 to drive it and a dummy load. Eric set the amp up in the hallway for passer-byes to see. I will try to get the info as correct as best I can. Will have to wait for Elecraft to clarify any details. - What was shown was a prototype 800-1KW solid-state amp - It was driven with about 30-40W from a K2 and was putting out about 1KW into a dummy load - It is about 80% the size of an 87A and looks very much like the Alpha. - Weight is about 35 lbs with a self-contained switching supply. - It is set up for SO or SO2R. There are SO-239 connections for 2 antennas and 2 rigs. You can be transmitting with the amp with one rig while listening through the amp with another rig. There are two RS-232 ports on the amp. In theory it looks like the amp could be remoted and run from a PC if you desired. - After the release of this version there will be a 1.5KW version. I believe this version will use an external power supply. This lower power version may be upgradeable to the 1.5KW version. - The amp will be offered fully assembled and tested and also as a kit. It sounds like the assembled version will be about $3K and the kit about $2.5K. Critical areas such as the 2 final boards and parts of the switching supply will be pre-assembled and tested. - This version of the amp should be released late summer, early fall. - It should handle SWR in the 3-4:1 range. It uses band-pass filters so no-tune. Bottom line - It looked real nice. I plan on getting one when it is available. Off to the airport to head home from another wonderful weekend at Dayton. 73, N2TK, Tony -Original Message- From: N2TK, Tony [mailto:[EMAIL PROTECTED] Sent: Saturday, May 21, 2005 5:11 PM To: 'elecraft@mailman.qth.net' Subject: RE: [Elecraft] Anything News at Dayton from Elecraft?? Yep there is. It's a new amp N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Dave G. Sent: Friday, May 20, 2005 7:23 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Anything News at Dayton from Elecraft?? The subject says' it all ??? Hope, Wish, Blow out the candles... Dave KK7SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2/XV144 Power Overshoot
Hi Glenn... You have done a good job of sleuthing and pondering the various solutions. Bottom line is that you may well need to communicate via email with the boys at Elecraft about this. If they have had other similar reports (or even if they have not), they will try for a solution. Also, you may well get a response from other VHFers that have been down this road. First, I believe you're correct in figuring it is the K2 and not the transverter. I have run into exactly the same issue with one of my VHF combos. I have a Yaesu FT-897 driving a Lunar 2 meter amp (pair of 3CPX800, with very sensitive grid trip circuitry). Same exact problem. Yaesu tech support told me how to adjust some of the ALC circuitry to "tune out" or at least minimize the initial ALC related overshoot. This helped a lot. Then I "slowed down" the pulse in the grid trip circuit in the amp by adding slightly more capacitance to one of the time constant caps. The combination of these two things solved my problem. I did not try the in-line attenuator approach, but that may be helpful too. You could easily fashion a 3 db attenuator out of a length of RG-174 mini coax. It has a healthy amount of "loss" per foot, so you could quickly calculate how many feet you would need to arrive at 3 db. I have both the XV-50 and XV-144 now to use with my K2 but have not yet used them in our VHF contest station with an external amp to observe whether this phenomenon exists. I will hasten to do some testing and get back to you on this. Good luck. Dick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Glenn McNeil Sent: Saturday, May 21, 2005 22:55 To: elecraft@mailman.qth.net Subject: [Elecraft] K2/XV144 Power Overshoot ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Tuner losses
Hi Bill, I recently built a KAT100 and 4:1 BL1 also (3 evenings too!). I have a 160/80/60m trap dipole in ANT1 and a 40m doublet via the balun in ANT 2 for the other bands. This gives me instant QSY on ten bands. Like you, by coincidence, I find the balun gets very hot on 40m. What I plan to do is experiment by putting some L (tapped coil) across the balun on the balanced side to cancel out some of the reactance on 7MHz. (I've tried adding C but that was going the wrong way as it didn't help). I think doing this should reduce the 7MHz balun losses, and I suspect won't effect the higher bands too much. 73 Fraser G4BJM #4368 From: "Bill Strong" <[EMAIL PROTECTED]> To: Subject: Re: [Elecraft] Tuner losses Date: Fri, 20 May 2005 23:09:13 - Andy, I want to give you a follow-up. I built the KAT100 in less than three evenings and it is a wonder to me in both its design and operation. I built the BL1 in the 4:1 configuration. I get a 1.1:1 or less match on all bands except 15 Meters which is about 1.5:1. I find that the balun gets hot enough to fry eggs on 40 meters (even at 50 watts with SWR of 1.0:1), mildly hot on 30 meters, cool as a cucumber on 20 meters (even at 100 watts), and slightly warm on 17 meters. I guess that on 40 meters the balun is at a current node. The feedline is about 100 ft long on the 140 ft Cobra Ultralite 80 doublet antenna. I don't know that I want to get into trimming the feedline as I may affect 20 meters. I am able to make contacts on 40 meters although I would assume I am operating at reduced efficiency. The BL1 when very hot does not desaturate and make the SWR rise above 1.0:1. I want to stay with 300 or 450 ohm ladder line so I may put another antenna up for 40 meters. I manually disconnect the antennas outside the house when they are not in use. Our area has a lot of thunderstorms. I guess I can buy a heavier duty balun from DX Engineers; however, I notice that DX Engineers has a new multiband antenna for sale which is fed with ladderline along with one of their big baluns. I am going to look into it. I ordered another BL1 which I am going to build in the 1:1 configuration. I want to see what if any difference this might make before I decide whether or not to get a bigger balun and/or another antenna. Thanks for your help, Bill WA5KPE Hattiesburg, MS K2 #4454 _ Be the first to hear what's new at MSN - sign up to our free newsletters! http://www.msn.co.uk/newsletters ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
