[Elecraft] KPA100 Problem?
I am not an experienced builder, but having purchased a ready built K2, I decided that the experience of building a KPA100 would be good for me. And everything has gone pretty well until I got to page 41 of the manual and conducted the tests. Most (J3 lead, Q1 and Q2, and J2) are fine and the readings are as expected. However, Q9 and D13 readings should be over 10K and I am getting 15Megs on my DMM, which is an older digital type. Granted, 15M is greater than 10K. Q9 (MOSFET) and D13 (Diode) appear OK and I have worked through the schematic, taking resistance checks along the way, and everything appears OK. I am thinking that it could be my DMM and any thoughts from the group would be appreciated. Larry (G0IKE) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
!Re: [ELECRAFT] Using XG1 to measure feedline losses
Ron D'Eau Claire wrote: One BIG factor is whether you are using a balun in the system. I've yet to find a balun that isn't unpredictable and frequently lossy when used in a feedline with high reactance, that is any balanced feedline with an SWR much above 1:1, no matter the type. For just that reason I still use a link-coupled fully-balanced tuner when feeding my doublet with open-wire line. The losses in a balun all depend on just how high the SWR on the line is - that is, how much reactance is present. AMEN !! Seems to me that baluns of the *transmission line* type have become *magic boxes* and so often used with high load (feeder) VSWR - say 3:1. Just because the balun does not get hot or explode at the transmitter power used, leads folk to believe that the balun is not adding loss. Perhaps the habit of some manufacturers of Antenna System Couplers who put a balun at the antenna feeder side of an unbalanced T or L network to save cost has something to do with this. 4 wire cross connected line is very useful, especially at VHF. The loss due to radiation is considerably less than the radiation loss found in 2 wire line, the ohmic loss is less since each *side* consists of two wires in parallel, and low Zo lines can be built e.g. 200 ohms. Ron, you have made my day ! 73, Geoff, GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
FW: [Elecraft] KPA100 Problem?
You are absolutely right. 15M is 10K. Reverse the meter leads, and maybe you'll see the 8M 10K too! Carry on! Dan / WG4S / K2 #2456 snip Granted, 15M is greater than 10K. /snip ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] some K2 issues
Last night, I did the C22 correction using WWV, and after a couple of tries, it worked like a charm, and it's very close, if not exact - I'm happy. (yes, I re-ran CAL PLL, etc., after) Also perfected the listening to the lowest sounding background noise method for tweaking the BFOs for my filter settings, and now there's little to no change in the pitch of a received signal in CW or CW reverse...it worked very well, was easy to do, and I've begun to see how being able to switch to CW reverse in the presence of some types of QRM is a great boon. And, of course, the received signal is smack in the middle of all my filter settings. Two questions: first, when I ask for 5W, I get about 6.2W, both as shown on the K2 display, and on my WM-2 wattmeter. I need to only ask for 4.3W to get 5W out. Is this normal/typical? I'm guessing the asked-for power level will be closer to the gotten power level when I've installed my KAT2...yes? Second, yesterday, while playing with/operating my K2, there was a blinking decimal point after all the numbers, and before the c. I was reading through the manual, also operating, trying to find some reference to that, but didn't, and noticed at some point that it had disappeared. What was it? Thanks! LL/K3ESE __ Do you Yahoo!? Yahoo! Mail - now with 250MB free storage. Learn more. http://info.mail.yahoo.com/mail_250 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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-#4877-kc4eyf
randt wrote on 04/20/05 20:53 ET: K2-#4877 KC4EYF Here! I did it,she passed Alignment and Test, Part 3 Congrats! Ok,Now i really want to get down to business with the 4 mhz oscillator with wwv or what ever. Go to http://elecraft.com - Click Builders' Resources - Read Frequency Calibrating the K2's 4 MHz Master Oscillator (C22) - Click Spectrogram Filter Alignment Articles (Updated) - Read the two Aligning the K2's ___ Filters using Spectrogram (Don't forget the r data mode filters if you'll be using them.) And then enjoy your finely tuned gadget! :-) Mike AB3AP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
FW: [Elecraft] some K2 issues
VFO Lock or AGC Off both blink the radix slowly. Dan / WG4S / K2 #2456 snip numbers, and before the c. I was reading through the manual, also operating, trying to find some reference to that, but didn't, and noticed at some point that it had disappeared. What was it? /snip ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] some K2 issues
LLoyd, The basic K2 power metering is an RF Probe type and is very dependent on the load - if it is anything other than 50 ohms pure resistance, the K2 power indication may be in error. Even when driving a 50 ohm non-reactive dummy load, an in-line wattmeter in the path may introduce some reactance and will cause the K2 to display the power incorrectly. Yes, the KAT2 has a real wattmeter and once properly calibrated will be as accurate as the calibration. 73, Don W3FPR -Original Message- Two questions: first, when I ask for 5W, I get about 6.2W, both as shown on the K2 display, and on my WM-2 wattmeter. I need to only ask for 4.3W to get 5W out. Is this normal/typical? I'm guessing the asked-for power level will be closer to the gotten power level when I've installed my KAT2...yes? -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.1 - Release Date: 4/20/2005 ___ 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
[Elecraft] OT: Longwave Broadcast In Europe
For some AES (Audio Engineering Society) standards work I am doing (on EMC), I need to get a handle on the approximate field strengths used by long wave broadcast stations (150-250 kHz) in Europe and the UK. Information on transmitter power and antenna details for US broadcast stations is available on a public FCC website. Is there a comparable site for the UK and other EU countries? Does someone here have direct knowledge of these transmitters? Comparable data for shortwave broadcasters could also be helpful. Please reply off list -- I don't want to burden the list with this discussion. Thanks, Jim Brown K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] some K2 issues
--- W3FPR - Don Wilhelm [EMAIL PROTECTED] wrote: LLoyd, The basic K2 power metering is an RF Probe type and is very dependent on the load - if it is anything other than 50 ohms pure resistance, the K2 power indication may be in error. Even when driving a 50 ohm non-reactive dummy load, an in-line wattmeter in the path may introduce some reactance and will cause the K2 to display the power incorrectly. OK...I'm tuning a balanced-fed loop through a ZM-2, and get pretty close. Both the K2's wattmeter and the WM-2 wattmeter, which is between the rig and the tuner, are displaying the same power. Even if something is causing the K2's display to be off, would that also affect the WM-2's reading? Should the WM-2 be after the tuner? Would the K2 be more accurate with the WM-2 gone? How would I know? LL/K3ESE __ 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
[Elecraft] K2 KAT 100 choices
Decisions Decisions. I am getting ready to order the External KAT 100 ATU for my K2/100. The desired end state may or may not be a K2 with the KPA100 and KAT100 in a seperate enclosure. However for right now I just want to get the KAT 100-2. So are there any advantages dis-advantages to ordering the KAT 100-1 and the KAT 100PNL or should I order the KAT 100-2 and an EC2 Blank Project. I the difference in cost is only $4, so that is not even a consideration. 73 KI4DGH Chuck G. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 KAT 100 choices
Hi The KAT100-1 is $239 and includes all of the case pieces you need to build the tuner. The KAT100-2 only includes the front and rear panels to fit the EC2. You still need to purchase the EC2 and you will not use the front and rear panels that come with the EC2. The EC2 is $59 plus the KAT100-2 is $219 total $278. If you want to buy the KAT100-1 and then convert to the -2 later then you will buy the -1 for $239 then later purchase the EC2 for $59 and the panel kit for $39 for a total of $337. If the plan is to go with the tuner in the EC2 then I would buy the -2 and the EC2 as this would save you $59. You can use the KAT100-2 with or without the KPA100 installed in the EC2 but typically the KAT100 and KPA100 is installed into the EC2 and the K2 has the QRP lid. The K2 can then be used QRP or plugged into the EC2 box for QRO. Note you will need the KIO2 installed in the QRP lid for this to work as the interface signals are brought out on the 9 pin connector on the KIO2 Don Brown KD5NDB - Original Message - From: [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Thursday, April 21, 2005 10:04 AM Subject: [Elecraft] K2 KAT 100 choices Decisions Decisions. I am getting ready to order the External KAT 100 ATU for my K2/100. The desired end state may or may not be a K2 with the KPA100 and KAT100 in a seperate enclosure. However for right now I just want to get the KAT 100-2. So are there any advantages dis-advantages to ordering the KAT 100-1 and the KAT 100PNL or should I order the KAT 100-2 and an EC2 Blank Project. I the difference in cost is only $4, so that is not even a consideration. 73 KI4DGH Chuck G. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] More rumors?
Well, perhaps I should have kept my mouth shut and let Eric do the honors. On the other hand he didn't seem to be keeping it a very close secret at the booth. It has no vacuum tubes, don't know about SMD. It's a QRO amp that can be configured in a number of interesting ways and doesn't require the K2 to operate. A very quiet switching power supply. Availabilty? Best guess late summer or early fall. Doug W6JD - Original Message - From: Sverre Holm [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, April 20, 2005 5:06 PM Subject: [Elecraft] More rumors? -Original Message- Mon, 18 Apr 2005 11:34:21 -070 I'll mention something on topic. I saw a new Elecraft thing at the DX Convention in Visalia. Wow!! You QRO guys, start saving your pennies! 73, Doug W6JD --- I'm sure I'm not the only one who would like to hear more about the new Elecraft thing? maybe a tube-based QRO PA with SMD components. - or was it just a late April fool's joke? 73 Sverre LA3ZA http://www.qsl.net/la3za/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] N2CQ QRP Contest Calendar Apr 23 - May 23, 2005
~~ N2CQ QRP CONTEST CALENDAR April 23 - May 23, 2005 ~~ Helvetia Contest (CW/SSB) (Swiss) ...QRP Category Apr 23, 1300z to Apr 24, 1300z Rules: http://www.uska.ch/html/en/index_e.htm ~~ Florida QSO Party (CW/Phone) ...QRP Category Apr 23, 1600z to Apr 24, 0159z and Apr 24, 1200z to 2159z Rules: http://www.floridaqsoparty.org/ ~~ Nebraska QSO Party (CW/SSB) ... QRP Category Apr 23, 1700z to Apr 24, 1700z Rules: http://www.qsl.net/hdxa/index.html ~~ FISTS/EUCW CW QRS Contest (CW) ... QRP Category Apr 24, 0001z to Apr 30, 2359z Rules: http://www.agcw.de/eucw/euqrs.html ~~ QRP To The Field (CW) ...QRP Contest!! Apr 30, 1500z to 2400z (Pick any 6 hours) Rules: http://www.zianet.com/QRP or http://www.kkn.net/archives//html/QRP-L/2005-03/msg00596.html ~~ PVRC May CW Sprint ... QRP Category May 1, z to 0400z Rules: http://pvrc.org/may_sprint.htm ~~ AGCW QRP/QRP Party (CW) ... QRP Contest! May 1, 1300z to 1900z Rules: http://www.agcw.de/english/contest/agcw-dl_e.htm ~~ Adventure Radio Spartan Sprint (CW) ... QRP Contest! May 3, 0100z to 0300z (First Monday 9 PM EDT) Rules: http://www.arsqrp.com/ ~~ Nevada QSO Party (All) ... QRP Category? May 7, z to May 8, 0600z Rules: http://www.a51cc.com/announce.htm ~~ Ten-Ten International Spring QSO Party (CW) ... QRP Category May 7, 0001z to May 8, 2359z Rules: http://www.ten-ten.org/calendar.html ~~ Oregon QSO Party (Ph/CW) ... QRP Category? May 7, 1400z to May 8, 0200z Rules: http://www.codxc.com/new/page.asp?content=oqp ~~ Indiana QSO Party (All) ... QRP Category May 7, 1600z to May 8, 0400z Rules: http://www.hdxcc.org/inqp/ ~~ Look Around in the Field (LAITF) (CW) ... QRP Contest! May 7, 1600z to 2100z Rules: http://w2agn.net/laitf.html ~~ New England QSO Party (Phone/CW) ... QRP Category May 7, 2000z to May 8, 0500z May 8, 1300z to May 8, 2400z Rules: http://www.neqp.org/ ~~ Mid-Atlantic QSO Party (CW/SSB/FM) ... QRP Category May 14, 1600z to May 15, 0400z May 15, 1100z to 2400z Rules: http://www.qsl.net/maqso/ ~~ FISTS Spring Sprint (CW) ... QRP Category May 14, 1700z to 2100z Rules: http://www.fists.org/sprints.html ~~ CQM International DX Contest (CW/SSB) ... QRP Category May 14, 1200z to May 15, 1200z Rules: http://www.sk3bg.se/contest/cqmidxc.htm ~~ Run For The Bacon (CW) ... QRP Contest! May 16, 0100z to 0300z Rules: http://fpqrp.com ~~ Dayton Hamvention (QRP Event - FDIM) May 20-22 Info: http://www.hamvention.org/ ~~ HIS MAJESTY THE KING OF SPAIN CONTEST (CW) May 21, 1800z to May 22, 1800z Rules: http://www.sk3bg.se/contest/kingofsp.htm ~~ EU PSK DX Contest ... Low Power (10W) Category May 21, 1200z to May 22, 1200z Rules: http://www.eudx.scotham.net/ ~~ VK/trans-Tasman Contests (80 M Ph) ... QRP Category May 21, 0800z to 1400z Rules: http://home.iprimus.com.au/vktasman/RULES.HTM ~~ Baltic Contest (CW/SSB) (80 Meters) May 21, 2100z to May 22, 0200z Rules: http://www.lrsf.lt/bcontest/english/rules_html.htm ~~ Thanks to SM3CER, WA7BNM, N0AX(ARRL), WB3AAL and others for assistance in compiling this calendar. Please foreward the contest info you sponsor to [EMAIL PROTECTED] and we will post it and give it more publicity. Anyone may use this N2CQ QRP Contest Calendar for your website, newsletter, e-mail list or other media as you choose. (Include a credit to the source of this material of course.) 72 de Ken Newman - N2CQ [EMAIL PROTECTED]
[Elecraft] For Sale: POWER/SWR METER
I have for sale a Tandem Match Power / SWR meter, (ARRL handbook). This a very accurate Power / SWR meter that I have build into a K2 project enclosure. It fits nicely on top or underneat of the K2. The power ranges are 5, 10, 50, 100, 200 and 500 Watt. The ranges are defined with high precition resistors you can changes the different ranges (if you want to) by changing the resistors. It comes completely with directional coupler, cables and documentation. Powering of the meter is with a 9V battery so it can be used mobile. Please send me an e-mail if you are interested (xx)[EMAIL PROTECTED](xx) (please remove the xx on both sides) I will send pictures of the item. Thanks for reading! 73, PA5KE Peter ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Adjusting C22 to calibrate the K2's Frequency Display.(updated)
In this piece, found under construction notes on the E site, it is emphatic about running CAL PLL on *ALL* bands...but it's only possible to do it on 40M, so...this ought to be changed, eh? LL/K2.4442 __ 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] Using XG1 to measure feedline losses
Very interesting test and another use for the XG1! Remember, the fat ladder line may be not canceling the currents, ie is not as balanced as the more narrow line. Or maybe, the window narrow line is just the better match to the tuner or it is the routing and the surrounding influences. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [ELECRAFT] Using XG1 to measure feedline losses
That is a good point, as you do not want the AGC to activate giving a wrong reading on the comparisons. If it were possible to disable AGC, you would be able to be sure it is out of affecting measurements. Also, you should use a step attenuator to make sure no other circuits are overloaded for the testing. Make sure your indicating point gives 10 dB steps or whatever step for each attenuator change to verify linearity at the control settings you have picked. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Adjusting C22 to calibrate the K2's Frequency Display.(updated)
I haven't been around the Elecraft history long enough to know, but I recall that earlier versions required CAL PLL on all bands while new versions only require it to be run on 40m. If the AppNote still is useful information but out of date it should as well be updated to reflect the current hardware/firmware procedures, or at least have a note that says for units newer than xxx do abc instead. Mark, NK8Q K2 #4786 From: Lloyd Lachow [EMAIL PROTECTED] Date: Thu Apr 21 13:56:53 CDT 2005 To: List Elecraft elecraft@mailman.qth.net Subject: [Elecraft] Adjusting C22 to calibrate the K2's Frequency Display.(updated) In this piece, found under construction notes on the E site, it is emphatic about running CAL PLL on *ALL* bands...but it's only possible to do it on 40M, so...this ought to be changed, eh? LL/K2.4442 __ 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [ELECRAFT] Using XG1 to measure feedline losses
An external 4:1 balun is typically less lossy than the built in 4:1 baluns. Better still, use the W5YR idea, a bead ferrite choke on the coax output, then connect there with a coax to binding post adapter for balanced line, and you eliminate questions about your balun. An alternate is to use a coax cable choke on a plastic Coke bottle, (liter bottle) for form. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] More rumors?
It's not a rumor. Elecraft unveiled their solid-state 800-watt all band (160-10) amp at the DX convention in Visalia last weekend. Eric told me that another version of the amp would also be available that doubles up on the finals which would put out a full 1500 watts. Availability will be later this year. I'm sure Eric will announce the details soon on this reflector. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [ELECRAFT] Using XG1 to measure feedline losses
Stuart K5KVH wrote: An external 4:1 balun is typically less lossy than the built in 4:1 baluns. Better still, use the W5YR idea, a bead ferrite choke on the coax output, then connect there with a coax to binding post adapter for balanced line, and you eliminate questions about your balun. Beads are great if you're using coax, mostly because they are low-loss and don't change the impedance presented to the tuner. Sometimes a 4:1 balun is the worst choice. It reduces the impedance the tuner 'sees' for a load. If it's being used as it was intended - in a fairly-well matched load such as 300 ohm line to a folded dipole cut to length - it's FB. In that case it'll translate the 300 ohms to 75 ohms, and easy match for the tuner. But, if the 4:1 balun is looking into an antenna or feed line with a high SWR the impedance it's driving might be very low, perhaps only a few ohms. If the 4:1 balun can handle it at all, it'll divide that impedance by four again, making it a very tough match for most tuners. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [ELECRAFT] Using XG1 to measure feedline losses
For shirt verticals with a low impedance I use a step-up balun, but again it seems to work better when the X is not the problem, but tehe R. WB6ZQZ makes a kit. On Thu, 21 Apr 2005 12:53 pm, Ron D'Eau Claire wrote: But, if the 4:1 balun is looking into an antenna or feed line with a high SWR the impedance it's driving might be very low, perhaps only a few ohms. If the 4:1 balun can handle it at all, it'll divide that impedance by four again, making it a very tough match for most tuners. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [ELECRAFT] Using XG1 to measure feedline losses
W5YR, (sk) used the beads for transition to his balanced line adapter to the coax connection on his tuner. That is the beauty of the cable choke and Beads, they are operating on the OUTSIDE of the coax section, and thus the transformation ratio is taken care of inside the tuner, but RF is blocked from the tuner case. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] More rumors?
the story as of last saturday morning ;-) was that the amp may include 6m (yay!) and that the 1500W unit will come out after the 800W is on the market. (6m would be derated, however, because 6m is about at the limit of what the finals can do.) The 800W version has the switching power supply built in; the 1500W version has the supply in a separate box. The supply is Elecraft designed and extremely quiet (as you might expect). The amp is fully automatic (a la Alpha/ACOM), runs with any xceiver and has some cool SO2R features that Eric will surely elaborate on. It also weighs less than 16kg, ready to go! - jeff wk6i At 12:47 PM 4/21/2005, Earl W Cunningham wrote: Elecraft unveiled their solid-state 800-watt all band (160-10) amp at the DX convention in Visalia last weekend. Eric told me that another version of the amp would also be available that doubles up on the finals which would put out a full 1500 watts. Availability will be later this year. -- Jeff Stai [EMAIL PROTECTED] Twisted Oak Winery http://www.twistedoak.com/ Rocketry Org. of CA http://www.rocstock.org/ Amateur Radio WK6I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] More rumors?
Elecraft unveiled their solid-state 800-watt all band (160-10) amp I'm sure the answers will be here soon enough, but in the meantime, any idea on input/drive levels, and corresponding output levels? I'm thinking about how it might work with the Elecraft rigs. --Andrew ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] More Rumours...
Way Ta Go Elecraft...!! Can't Wait ...to see these.. But... Will it be a kit for both amps... or will it be a stock built buy finished from Elecraft type of deal...?? Andy [EMAIL PROTECTED] ...I Just See It.!.. John A. Ross (RSD Communications circa 2004) A.R.S. GM0NWI QRP ..It is vain to do with more A Dis-Orientated Kiwi... K2 S/n 01432 Soon To Be On-Airwhat can be done with less.. In The Northern Hemisphere... GQRP No.9576 QRP-L No.2165 ARCI No.10561 Central Florida DX Association (CFDXA) Alaska QRP Club No.190 Flying Pigs QRP Club No. FP#-1061 ICQ No.31899603 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] rumours
HAY Sounda like Heathkit may be returning!! N2DH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Adjusting C22 to calibrate the K2's Frequency Display.(updated)
That's a REALLY OLD piece then... they haven't had you run CAL PLL on all bands for probably 4-5 years now. 73, Tom At 01:56 PM 4/21/05, Lloyd Lachow wrote: In this piece, found under construction notes on the E site, it is emphatic about running CAL PLL on *ALL* bands...but it's only possible to do it on 40M, so...this ought to be changed, eh? LL/K2.4442 __ 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Low PLL reference oscillator range
Hi all- K2 #4818 here, I'm in Alignment and Test part II Everything has gone great, my soldering is nice if I do say so myself, I'm very careful with my parts, but I have an issue with the PLL Reference Oscillator Range. My High freq: 12099.03 My Low Freq: 12089.77 My range: 9.26 The book says it must be at least 9.8 and to see troubleshooting. I wish they had put a nice three digit number next to that note so I knew where in troubleshooting to look, but even if I knew, I don't know what I would do... Is 9.26 really too low? And what is it too low for? I'm just a guy with a soldering iron who knows most letters of morse code without peaking! I have been continuing for now. VCO Alignment went fine. BFO test went fine. If this is really a problem, where will I see the negative aspects of it? Thanks everyone, you all make one fine list! -Paul KB8NMZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 subject)
Hi Everyone- I'm looking for any thoughts or suggestions from anyone about some recent VSWR tests I've made on two antennas. GAP TITAN BACKGROUND: I've had a GAP Titan vertical antenna running with my K2 (S/N 1599) for several years. The K2 and the GAP have served me very well (QRP WAS, 28 countries, etc.). The GAP is fed with about 80 ft of RG8U type coax (Belden 8214). Its VSWR measurements look completely normal to me when measured from here in my shack using an MFJ 259B meter. For example, typical VSWRs on 20m range from about 1.7 to 2.1 measured directly at the feedline PL259 connector. Most of the other seven GAP bands display similar expected VSWR ranges. Here in my shack the GAP feedline connector is attached to the center (common) port on a manual (not electronic) Delta-4 coaxial switch. The K2 and a couple of other rigs (Drake and Heathkit) are connected to the switchable Delta-4 ports. That arrangement enables simple rig switches to the GAP antenna without having to move the feedline from rig-to-rig. Measurements of feedline VSWR made THROUGH the Delta-4 switch to the GAP antenna with a 259B meter produce very similar results to those made directly at the feedline connector (i.e. with the switch bypassed). Conclusion: the Delta-4 switch seems completely transparent to the rig/feedline system. So far so good. HEXBEAM RECENT ADDITIONS: I recently put up a five-band HexBeam (2 wire-type elements for each of the five bands, 20m-10m). It seems to perform very well. The K2's KAT2 tuner likes it, as do the two other rigs and tuners I have (Drake and Heathkit). In the process of finishing the new Hex antenna, and shaking down its performance after installing it, I discovered one defective feedline PL259 connector which I replaced (naturally, outdoors on a windy day). Following that, I measured the HexBeam's VSWR across its five bands from the shack feedline connector with the 259B; all was well with it. VSWRs measured between 2.2 and 1.5 with no strangeness or instability seen on any of its five bands. Values on 20m, for example, ranged from 2.2 down to 1.7, depending on frequency. Similar measurements show up on the Hex's other four bands. (The top of 10m is somewhat higher, but that's not my issue.) MY ISSUE: Even though the HexBeam's 20m VSWR measurements appear quite normal made directly at its shack feedline connector using the 259B meter, they are VERY DIFFERENT when measured through a Delta-4 switch. The GAP antenna's VSWR's are very normal-looking when made through its Delta-4 switch, but the HexBeam and 259B meter are NOT HAPPY with a Delta-4 switch in place. (The HexBeam's Delta-4 switch is actually a separate switch, not the same one the GAP is connected to.) For example, instead of seeing a 20m range from 2.2 down to 1.7 on 20m WITHOUT the Delta-4 switch in place, I see values from about 4.5 or 5.0 across the whole band WITH IT IN PLACE. The 259B meter also appears quite skittish making measurements through the switch. It seems unable to decide on R,X and SWR values that remain reasonably stable. Something about the Delta-4 switch seems to have upset the HexBeam's VSWR applecart when being tested with the 259B. I see no such strangeness when measuring through the switch to a dummy load or to the GAP antenna when connected to the same switch. The only unexpected results seen through the switch are those made to the HexBeam. Just for jollies I decided yesterday to ignore the apparent problem, and just let my K2 and other rigs run on the HexBeam, each with its own tuner. All were happy, with the HexBeam's directivity quite obvious on all of them. I've disassembled both of my Delta-4 switches, cleaned their contacts, verified that all of my cable connections to the switches are secure and correct, and that no other dumb-thumbing factors have been introduced by me. I've done all the usual loosening-wiggling-tugging efforts to see if I can find a cable connector that might be in trouble, but nothing has shown up yet. MY QUESTION: Has anyone else ever used Delta-4 switches and seen similar unstable/unexpected VSWR results, either with a HexBeam or some other antenna connected to it? It seems obvious that the switch, only when connected between the HexBeam and a rig, introduces some sort of VSWR increase, but I've run out of ideas for what to try next. Yesterday my granddaughter said, Just quit measuring and start QSOing! Ah, the wisdom of a 12-year-old, huh? Thanks and 73 to all for the bandwidth and for any thoughts. Steve Banks K0PQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Low PLL reference oscillator range
Paul, I had the same problem a few weeks ago. You'll need to request a 12uH choke from Elecraft for L31 and that will solve the problem. 73, Dave N7AF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Delta-4 switches
Steve Said: MY ISSUE: Even though the HexBeam's 20m VSWR measurements appear quite normal made directly at its shack feedline connector using the 259B meter, they are VERY DIFFERENT when measured through a Delta-4 switch. The GAP antenna's VSWR's are very normal-looking when made through its Delta-4 switch, but the HexBeam and 259B meter are NOT HAPPY with a Delta-4 switch in place. (The HexBeam's Delta-4 switch is actually a separate switch, not the same one the GAP is connected to.) Steve, Have you swapped the two Delta-4s to see if the problem with the Hexbeam is affected by both switches or just the one originally connected to the Hexbeam. If just one of the switches has the problem, you've isolated the problem. If they both have the problem then something unusual is affecting both switches. Perhaps a current imbalance is on the coax for that antenna and it can not be handled by the switch. I wonder if a current balum made of 50 ferrite beads would help in that case. Or you could coil up the coax at the base of the antenna to made a current balun; six turns 6 inches in diameter is the usual configuration, but you may need more since it is a stubborn case. Sorry I don't know enough to really help you. An antenna switch is a luxury I don't yet have. I still must use the Armstrong method. Regards, Steve, W2MY/5 http://users.ev1.net/~spituch/, Corpus Christi, TX, ELl7 QRP/ARCI 8351, FPQRP 1025, NJQRP 25, QRP-L 269, FISTS 3150, ARS 142, NEQRP 281, NWQRP ??, 10-10 61720, NORCAL 691, K2 #402 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.1 - Release Date: 4/20/2005 ___ 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] RE: Delta-4 switches
I agree with swapping the two switches to see of problem is on both. Is there any other grounding to the switch chassis? Other than that, are you using same length coax jumpers, (same jumpers) and just subbing antennas? I have seen many problems move with jumpers, even those you think are good by normal tests. Still, since you have done the wiggle test , I am surprised you did not find anything. What is different about feed to Hex Beams? Any restriction/ limit on feedline length? Is the beam pointed toward the shack when you observe high SWR? My thinking cap is ON. 72, Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Low PLL reference oscillator range
9.8 may be fine, but I have 9.26 (see below) :) I will check out the What's New section as Dave G3VGR suggested, and if that doesn't make sense to me I'll contact Elecraft as Dave Lowenstein suggested. Thanks all, and any additional comments definitely welcome! -Paul On Apr 21, 2005, at 7:08 PM, Tim Cailloux wrote: 9.8 is fine. Wayne has mentioned in the past that 8.8 is the real minimum. I just finished #4539 and I was at 9.8 also. .. Original Message ... On Thu, 21 Apr 2005 18:55:06 -0400 Paul Bruneau [EMAIL PROTECTED] wrote: My High freq: 12099.03 My Low Freq: 12089.77 My range: 9.26 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: Delta-4 switches
I looked at the HEX BEAM web site to see if anything special about the feed. Sounds like it is a simple 50 ohm coax connection. However, compact antennas have intense near field, so if there is coupling back to shack thru its gain direction you may have a weird case going. Keep us informed of what you find swapping switches. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] pwr supply
can you run a k2 , kpa100 and kat100 from one power supply or do you need two supplys. the kpa100 will be in a seperate ec2 with the kat100 ron , kcotdj ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] pwr supply
Ron McMurray wrote: can you run a k2 , kpa100 and kat100 from one power supply or do you need two supplys. the kpa100 will be in a seperate ec2 with the kat100 ron , kcotdj One power supply will be fine. In fact, it's better because then everything will be turned on at once, which avoids auxbus problems. -- 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] More rumors?
I wrote: Sounds like a very nice solution for contest expeditions or DX-peditions. 800W is plenty for most situations. I just hope it's not $3990. This one weighs 20 lbs including power supply. http://www.kunnallislehti.fi/finnfet/esite2.pdf 73, Bill W4ZV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: Delta-4 switches
I would put a balun or choke at the feedpoint of the HexBeam for starters... sounds like rf on the shield might be causing problems. Larry N8LP Stuart Rohre wrote: I looked at the HEX BEAM web site to see if anything special about the feed. Sounds like it is a simple 50 ohm coax connection. However, compact antennas have intense near field, so if there is coupling back to shack thru its gain direction you may have a weird case going. Keep us informed of what you find swapping switches. -Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] new product
here is an idea for a new elcraft project for all of us hams a clock dual time clock with big lcd display one part set to local time the other set to utc time and make it so that the utc does not change with the saving time but stays set to utc but the local clock would change also make the clock to pickup the wwv signal decode it and keep the clock set to the right time then to really make it nice give it a either net port and allow it to serve up the time of day on our personal networks now that would be a great little time piece for the shack see ya 73's N1IB David Schornak K2 03027 arf don't forget me Mis Ginger ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] More rumors?
Blasphemy!! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Earl W Cunningham Sent: Thursday, April 21, 2005 1:47 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] More rumors? It's not a rumor. Elecraft unveiled their solid-state 800-watt all band (160-10) amp at the DX convention in Visalia last weekend. Eric told me that another version of the amp would also be available that doubles up on the finals which would put out a full 1500 watts. Availability will be later this year. I'm sure Eric will announce the details soon on this reflector. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] More rumors?
What was the price associated with the 800 watt linear? I am sure I cannot afford it, just curious ;) Kevin. KD5ONS It's not a rumor. Elecraft unveiled their solid-state 800-watt all band (160-10) amp at the DX convention in Visalia last weekend. Eric told me that another version of the amp would also be available that doubles up on the finals which would put out a full 1500 watts. Availability will be later this year. I'm sure Eric will announce the details soon on this reflector. 73, de Earl, K6SE -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.2 - Release Date: 4/21/2005 ___ 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] new product
Great idea. Expanding on that idea, have it so that it is expandable with weather station accessories that can be interfaced to the computer to get date/time/WX. Could include a wireless/remote WX sensors for indoor/outdoor temperature, humidity, barometric pressure, wind speed and direction. Each function could be a separate module but could integrate fully into the one overall project. David wrote: here is an idea for a new elcraft project for all of us hams a clock dual time clock with big lcd display ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] new product
This sounds like a nice idea. I'd build one. Kevin. On Thu, 21 Apr 2005 22:30:03 -0400, [EMAIL PROTECTED] wrote: Great idea. Expanding on that idea, have it so that it is expandable with weather station accessories that can be interfaced to the computer to get date/time/WX. Could include a wireless/remote WX sensors for indoor/outdoor temperature, humidity, barometric pressure, wind speed and direction. Each function could be a separate module but could integrate fully into the one overall project. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.2 - Release Date: 4/21/2005 ___ 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] More rumors?
Elecraft unveiled their solid-state 800-watt all band (160-10) amp at the DX convention in Visalia last weekend. Eric told me that another version of the amp would also be available that doubles up on the finals which would put out a full 1500 watts. Availability will be later this year. Blasphemy!! I'm reasonably certain an OFF switch will be included as a standard feature :) ~Don ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] More rumors?
Yes, Blasphemy in the eyes of the 'QRP only' folks, but consider that the K2 has grown in respect by leaps and bounds - at first it was considered a 'toy radio' by some, but it has become noticed by not only the QRP folks, but also by the QRO, contesting, and DX communities as a superb receiver coupled with a good transmitter. It just makes good business sense to expand the market to all potential customers. It is not necessary to buy the BIG AMP, the basic QRP K2 is still the same as before - each to his own, and Elecraft is managing to provide products that promise to appeal to all persuasions within Ham Radio. Elecraft now has, or will soon have, products that encompass the field from handheld portable HF radios to full legal limit gear. That is quite an accomplishment for the 'folks at Aptos'. Take your pick, minimalistic QRP or full power QRO - Elecraft has something to fit your wants and desires. 73, Don W3FPR -Original Message- Blasphemy!! -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.10.1 - Release Date: 4/20/2005 ___ 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] Low PLL reference oscillator range
Paul; I designed the temperature stability part of the PLL reference oscillator. The PLL reference tuning range needs to be a minimum of 9.8 kHz if you want to operate on 160 meters. A tuning range of 8.8 kHz will not work at 1.8 MHz. If you only want to operate down to 3.5 MHz, a PLL reference tuning range of 8.8 kHz is fine. The 8.8 kHz that appeared on the Elecraft web site was a typo - it has now been corrected to 9.8 kHz minimum. ECS has not been able to control the Q of the 12 MHz crystals as tightly as we would like. When they deliver higher Q crystals, the tuning range becomes narrower and the larger 12uH inductor is required to compensate for the higher Q crystals. -John KI6WX - Original Message - From: Paul Bruneau [EMAIL PROTECTED] 9.8 may be fine, but I have 9.26 (see below) :) I will check out the What's New section as Dave G3VGR suggested, and if that doesn't make sense to me I'll contact Elecraft as Dave Lowenstein suggested. Thanks all, and any additional comments definitely welcome! -Paul On Apr 21, 2005, at 7:08 PM, Tim Cailloux wrote: 9.8 is fine. Wayne has mentioned in the past that 8.8 is the real minimum. I just finished #4539 and I was at 9.8 also. .. Original Message ... On Thu, 21 Apr 2005 18:55:06 -0400 Paul Bruneau [EMAIL PROTECTED] wrote: My High freq: 12099.03 My Low Freq: 12089.77 My range: 9.26 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
