Re: [Elecraft] Containers for sorting parts
[EMAIL PROTECTED] wrote: So, what is the preferred safe container?? Is the semi hard plastic utility box ok? I don't have any metal containers which are suitable.. For ICs and transistors, I prefer to use the black antistatic foam that Elecraft ships them in. there's usually a bit more space for some of the other transistors that came bagged. Caps, I prefer to push through a thin sheet of paper. This not only keeps them together and groups them, but I can scribble the values on the paper too, in readable-sized writing! Diodes too, if there's enough of them to deserve sorting, though they're usually a lot easier to re-read. Resistors are usually in nicely-sorted build-order strips, so once you've worked out which end to start, it's easy peasy. If they're NOT in pre-sorted strips, I'll do something similar to the caps. Resistor packs are a bit of a pain because the numbers never seem to QUITE match up with what the manual asks for, but when inventorying, it's usually easy enough to work out what matches what because the quantities match and most of the last few digits are about right. I then scribble the REAL number next to the part in the parts list so I can double-check later when I've lost count. Hardware you can use whatever you like. To be honest, apart from some kits having 3 different sized screws, I've not had much trouble digging the hardware bits out of a bag. In the parts list I'll sometimes scribble big, medium, small, so then when the manual says fix using some-horrible-imperial-unit stand-offs I can quickly check, ah yup, that's the small ones. -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] Did you know: Pearls melt in vinegar. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Elecraft Digest, Vol 23, Issue 26
Greetings all, We had an interesting time a few years ago in the UK when PLT (power line telecomms) was a new threat. We built a mains supply to spec complete with street lighting standards and then tested various power line transmission proposals for radiation. Needless to say it radiated, even when the light standards were disconnected. The test results were all very well but it was all summed up quite nicely when, still without the light standards, the amateurs in the technical group held 57 (if not 59) QSOs with most of continental europe on QPR rigs. The cable isnt underground in the rf sense, its just in a different dielectric medium and -2ft AGL. Regards Alan G0HIQ --- [EMAIL PROTECTED] wrote: ...Doesn't that give the lie to our historical claims that you can put the usual utility lines underground but not radio antennas? I guess that with enough power one can put any antenna underground (GWEN) or even underwater (SUBCOMM) but let's not give my wife any more ammunition!! Has anyone here tried it? -- 73 de K2ASP - Phil Kane ___ Yahoo! Photos NEW, now offering a quality print service from just 8p a photo http://uk.photos.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] Re Containers for parts sorting
One item for sorting parts I haven't seen mentioned is glazed earthenware ...the XYL here has some very nice shallow dishes with sloping sides that go missing when I have a kit on the bench! They are quite solid and not so easily flipped over if something is leaned on them during use( I bet some of you have catapaulted components out of a light container?) If you get really rough they are very cheap to replace.that hasn't been necessary here ...yet... As mentioned, the piece of antistatic foam takes some beating for sorting caps out, and sorting containers shouldn't be required for the CMOS chips and FET's as Elecraft have them already in anti-static containers. It's just a matter of taking the precautions when you install them, and the Manual is pretty specific on how to go about that. FWIW Cheers...Ron ZL1TW -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.1.385 / Virus Database: 268.2.6/288 - Release Date: 3/22/2006 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Another powersupply question
hi all, For most uses the RF noise is unimportant and it's one of the most difficult things for many who use these supplies to assess without actually trying the unit in the shack. I agree, but I found out that a coarse measure for the quality of the supply is just its weight. Plastic cases are lightweight and bad shielding. _No_ torroids are lightweight and do not shield RF. So look for metal cases, many toroids and the chance will be better that you will not have EMI problems with your switching power supply. The last one I kicked into the wastebin was delivered with my network camera. (and it had nearly no weight) I had to replace it with a linear PS to enjoy 80m on my K2. 73! de Werner OE9FWV -- Q: How many surrealists does it take to screw in a lightbulb? A: Two. One to hold the giraffe and the other to fill the bathtub with brightly colored machine tools. PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 K2 #5203 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: ridge vent as antenna?
Has anyone had any experience using ridge vents as antenna (or part of an antenna)? Effect of rain wetting the roof shingles? Comments?? 73 Ray K2HYD Ray, Another possibility for overcoming your limitation is to use weather balloons to loft your antenna: http://www.allsopp.co.uk/ They have many different sizes of balloons to choose from. You could easily use a vertical antenna, and raise it several hundred feet without a problem. Just make sure you're not too close to an airport. Tony K4YYZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[QRP-L] KX1 rx filter query
I had a blast working the Foxes last nite on 40/80 with K1 and KX1 with 100MW to full throttle 5w depending on cndx. It's like fly-fishing with with the lightest weight gear you can find and if you land one you'd better be careful to give him all the line he needs but not to much or he'll snag ya and walk away. Ok, so much for the fishiin analogy. Back to QRP radio. I notice however my KX1's rx filer is nowhere as clean as as my K1's? It's been awhile since I built both rigs. I know they're different designs etc. But my KX1 I can often hear the opposite sideband note coming through when in 1KHz or even 500hz positions. K1 seems to have stronger rejection in this area? Also the K1's peak is very pronounced ...as I switch thru the filters the signal amost appers to increase in signal strength (assume this is just because the qrm in being reduced by the filter?) BUT on my KX1 when incresing filtration the desire signal stays the same or even gets slightly weaker? It almost sounds like there's no peak or if there is it's low and broad? Sorry I don't have any audio SW to analyze what I'm hearing. Can't load any on this business PC or the IT folks go nutz anyway. I'm just wondering if I have a fried xtal in my xtal filer in the KX1? I should try and find a local who has a KX1 and do a side by side comparison. That would tell the story. Sure love the radio inspite of the issue. Hasn't stopped me from many enjoyable QSOs from my tent in the woods. To summarize my question is: does your KX1's filter sound as good as the K1's or K2's in your opinion? Steve/n0tu and Rooster/Peanut my 2-pack goats __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
RE: [QRP-L] KX1 rx filter query
Steve, You can download free acoustic spectrogram software that will run on a PC; at least it is free for ten-day use. I run the KX1 audio out into my PC microphone input. There is a link to the spectrogram software on the Elecraft website. It is commonly used to peak a K2. It works great to peak the KX1 receiver trimmer capacitors also (so does an AC voltmeter). My KX1 filter peaks are noticeable on narrow settings. I used the Visualization software and characterized my receiver response as follows (- 6 dB low frequency, peak frequency, - 6 dB high frequency): Filter setting -6dB Low F Peak Audio F-6dB High F Maximum 159 Hz 592 Hz 1214 Hz 1.0 259 Hz 500 Hz 697 Hz 0.5 321 Hz 442 Hz 554 Hz Min 337 Hz 444 Hz 516 Hz You can see in the data that the 6dB down points on the minimum bandwidth filter setting is less than 200 Hz wide and is more than 1 KHz wide at maximum setting, quite noticeable to the ear. I am not experienced with filter design but I notice that the filter uses varactor tuning of the second and third stages of the crystal filter. Varactor tuning looks like it should bend the resonance of the second two stages lower. So the end effect should lower the frequency of the central peak of the total response as the filter is narrowed. On mine the peak moves from approximately 600 Hz (filter design point) down to less than 450 Hz. I can lose a weak signal if I zero beat (600 Hz offset) and then narrow the filter. I have to use RIT to then peak it again at a lower offset. Because of the effect of needing to retune on narrower filter settings, I made a small modification to my BFO. I paralleled a 10pf capacitor across C13 to create a lower offset, around 500 Hz. I now zero beat at 500 Hz and have acceptable signal at all filter settings. I can hear very strong signals on the opposite side band; I have not measured the rejection on my unit but I find it acceptable. When I think back to my Novice days in 1969, this is a much better receiver than the Heathkit HR10 I had in those days. Elecraft did a nice job. Mike Scott Tarzana, CA Phone (818) 708-9722 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of n0tu/Steve Sent: Friday, March 24, 2006 5:23 AM To: elecraft@mailman.qth.net qrp-l Subject: [QRP-L] KX1 rx filter query I had a blast working the Foxes last nite on 40/80 with K1 and KX1 with 100MW to full throttle 5w depending on cndx. It's like fly-fishing with with the lightest weight gear you can find and if you land one you'd better be careful to give him all the line he needs but not to much or he'll snag ya and walk away. Ok, so much for the fishiin analogy. Back to QRP radio. I notice however my KX1's rx filer is nowhere as clean as as my K1's? It's been awhile since I built both rigs. I know they're different designs etc. But my KX1 I can often hear the opposite sideband note coming through when in 1KHz or even 500hz positions. K1 seems to have stronger rejection in this area? Also the K1's peak is very pronounced ...as I switch thru the filters the signal amost appers to increase in signal strength (assume this is just because the qrm in being reduced by the filter?) BUT on my KX1 when incresing filtration the desire signal stays the same or even gets slightly weaker? It almost sounds like there's no peak or if there is it's low and broad? Sorry I don't have any audio SW to analyze what I'm hearing. Can't load any on this business PC or the IT folks go nutz anyway. I'm just wondering if I have a fried xtal in my xtal filer in the KX1? I should try and find a local who has a KX1 and do a side by side comparison. That would tell the story. Sure love the radio inspite of the issue. Hasn't stopped me from many enjoyable QSOs from my tent in the woods. To summarize my question is: does your KX1's filter sound as good as the K1's or K2's in your opinion? Steve/n0tu and Rooster/Peanut my 2-pack goats __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED] __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
RE: [Elecraft] RE: ridge vent as antenna?
Another possibility for overcoming your limitation is to use weather balloons to loft your antenna: http://www.allsopp.co.uk/ They have many different sizes of balloons to choose from. You could easily use a vertical antenna, and raise it several hundred feet without a problem. Just make sure you're not too close to an airport. or a power line. What goes up very often comes down...un-expectantly. Paul N8NOV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] AD9850 chip available for the asking
I have an Analog Devices 9850 DDS clock drive chip that I requested from the manufacturer about a year ago, intending to build one of the DDS VFO boards available from AMQRP. Well, I never did, and now that board is no longer available, the new one uses an updated 9851 chip. I hate to discard usable stuff, so if anyone on the list can use this chip, I will be happy to send it free of charge. Chip is in the original ESD-safe packaging, never opened. Please respond to me off the list. 73, Mike N2HTT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] many thanks for ridge vent comments
All, Looks like I really set off a minor comment explosion when I posted my questions on using ridge-vents as antennas! It's amazing how we Elecrafters jump in to offer comments and help. I appreciate all your helpful comments, info and suggestions, and look forward to doing more experimentation over the coming months (heck, I need to wait a couple of months until it gets unbearably hot in the attic anyway - just as I need to wait until a deep winter freeze before attempting any outside antenna work!) and will post any interesting results here. 73 Ray K2HYD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Parts Storage
I use the Brass Pro Shops, storage box, for sorting caps and other non electrostatic sensitive components. The box I like is the model 370, as it has adjustable dividers and the price is right. I would never use them for electrostatic components. Keep your electrostatic components in antistatic foam or in a antistatic bag and use a grounded wrist strap. http://www.basspro.com/servlet/catalog.TextId?hvarTextId=13316hvarDept=100; hvarEvent=hvarClassCode=11hvarSubCode=9hvarTarget=browse I have no connection with the Bass Pro Shop, just like this product. 72, Steve Ray K4JPN ex K1VKW EM82ep Warner Robins GA Elecraft K2 1422 KPA-100 Heath Fan HW-101, HW-8 http://www.thewinstonator.com/k4jpn.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K1 tuning range
Russ Tobolic wrote: Rick; I recently completed K1 2136 and went with the 120pF VFO capacitor. This gave me a tuning range of approx 178KHz and 15KHz/rev which is just a little touchy but not difficult. It depends on how stable your fingers are when tuning. I may try 100pF to make it just a bit easier. has anyone tried one of these on the K1 to help with the tuning rate? http://www.oselectronics.com/ose_p101.htm -- GB de ka5oai, Sam Morgan -- linux - the lifetime learning experience ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Bengali Simplex Keyer
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sam Morgan Sent: Friday, March 24, 2006 9:26 AM To: elecraft - qth.net Subject: Re: [Elecraft] K1 tuning range I recently purchased the above keyer; I send with my left hand copy with my right hand. I want the dits on the right paddle(thumb) the dahs on the left paddle(index finger). Ground in the middle. No wire came with it. What kind of wire do I need what wire goes to what to connect it to my K2/100? Thanks. Bill KE5UD Russ Tobolic wrote: Rick; I recently completed K1 2136 and went with the 120pF VFO capacitor. This gave me a tuning range of approx 178KHz and 15KHz/rev which is just a little touchy but not difficult. It depends on how stable your fingers are when tuning. I may try 100pF to make it just a bit easier. has anyone tried one of these on the K1 to help with the tuning rate? http://www.oselectronics.com/ose_p101.htm -- GB de ka5oai, Sam Morgan -- linux - the lifetime learning experience ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] AD9850 chip available for the asking
Thanks all, chip is spoken for. 73, Mike - Original Message - From: [EMAIL PROTECTED] Date: Friday, March 24, 2006 9:38 am Subject: [Elecraft] AD9850 chip available for the asking I have an Analog Devices 9850 DDS clock drive chip that I requested from the manufacturer about a year ago, intending to build one of the DDS VFO boards available from AMQRP. Well, I never did, and now that board is no longer available, the new one uses an updated 9851 chip. I hate to discard usable stuff, so if anyone on the list can use this chip, I will be happy to send it free of charge. Chip is in the original ESD-safe packaging, never opened. Please respond to me off the list. 73, Mike N2HTT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft K1-20 - - Now Camping - Antennas
Wow, What a support Group Thanks to all the oldsters out there who responded to my cataract problem (surgery went well yesterday by the way). Now my next question is what kind of antennas to use (mostly for 20 meters) when out camping. Here in Northeastern Illinois, most campsites have only one tree to hang a dipole on which would leave the ends to droop to the ground etc. What do most of you guys use when camping? Next question in line will be Power Supplies for the K1. Dick Powers WB9PWQ / AFA3DP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Underground Antennas (WAS: Ham Ingenuity)
The only ground antenna I worked with was a 270 ft. horizontal loop made from #28 enemeled wire. It was in a pentagon shape and laying right on the ground. It loaded well with my antenna coupler thru a 1:1 homemade balun wound on a big 4 ferrite toroid form with about 12 turns trifilar wound #18 solid hookup wire. I worked quite well I thought, except the signals incoming and outgoing were down about 20 db. Even did a few QSO's on 40 and 20 meters with it QRP with the K1. NOT the most effective antenna by any means, but surely a good 'stealth' antenna for people in stuffy subdivisions with those stupid covenants! If I were going to make it a permanent installation I'd use some single conductor #14 solid insulated wire from Home Depot for protection against breakage. Any Nosy Neighborhood Association idiot snoop could be told it was a wire to keep dogs off your lawn, or to keep you dog in your yard with a special collar. Such an antenna would be a whole lot better than a short loaded whip or some other less desirable rigup. 73, Sandy W5TVW - Original Message - From: Stuart Rohre [EMAIL PROTECTED] To: Ron D'Eau Claire [EMAIL PROTECTED]; elecraft elecraft@mailman.qth.net Sent: Thursday, March 23, 2006 11:31 PM Subject: Re: [Elecraft] Underground Antennas (WAS: Ham Ingenuity) | Hee, hee. Bet you did not expect someone to report they had experience with | underwater antennas, but I have been on an experimental project to put the | Rogers FLEX Folded Conical Helical HF antenna on a submerged vessel. | (Written up in IEEE Transactions on Antennas and Propagation) | | Of course, it was not used while submerged. | | I also had some HF antennas on ocean buoys that wash over pretty regularly | in a high sea, so it is operated underwater part of the time. Signal drops | as you would expect. At 5 watts power, they were not going to work well | when in washover. SWR goes crazy, but they right themselves pretty quick | and that is what foldback SWR protection is for. Rig was FT 5 watter. | | -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 | | | | -- | No virus found in this incoming message. | Checked by AVG Free Edition. | Version: 7.1.385 / Virus Database: 268.3.0/290 - Release Date: 3/23/2006 | | ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 K1-20 - - Now Camping - Antennas
I use one of these 8 foot long two-piece magmount verticals for 20 metres. I just put it on top of the car - or a sheet of metal if I don't have the car - and it works a treat. Doesn't even need an ATU. I've managed the States and Japan miles from here with 4 watts RTTY no problem. 73 Bob 2M0KDZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 K1-20 - - Now Camping - Antennas
Dick Don't let just a single tree in a campsite hold you back. Use it and have fun. Drooping dipoles work just fine. When the xyl and I were camping in Oregon, there were only some rose bushes by our campsite and no trees. So I laid out my 40m dipole over the bushes, about 4 ft above ground, fired up my old HW-8 and had a number of nice QSOs. Great time, sitting at the picnic table with my lantern and a 12v lantern battery for the HW-8. Good luck and 73 Bob N6WG The Little Station with Attitude -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Richard Powers Sent: Friday, March 24, 2006 8:09 AM To: Elecraft Subject: [Elecraft] Elecraft K1-20 - - Now Camping - Antennas Wow, What a support Group Thanks to all the oldsters out there who responded to my cataract problem (surgery went well yesterday by the way). Now my next question is what kind of antennas to use (mostly for 20 meters) when out camping. Here in Northeastern Illinois, most campsites have only one tree to hang a dipole on which would leave the ends to droop to the ground etc. What do most of you guys use when camping? Next question in line will be Power Supplies for the K1. Dick Powers WB9PWQ / AFA3DP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] RE: Bengali Simplex Keyer
Bill Striegel wrote: I recently purchased the above keyer; I send with my left hand copy with my right hand. I want the dits on the right paddle(thumb) the dahs on the left paddle(index finger). Ground in the middle. No wire came with it. What kind of wire do I need what wire goes to what to connect it to my K2/100? You want shielded wire with two conductors inside the shield. Use the shield as the ground connection. Connect the wire from the dit paddle to the tip of a 1/8 stereo plug and the one from the dah paddle to the ring. The shield, of course, goes to the shaft of the plug. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] please submit your EQP scores
Many EQP submissions have come in. Thanks! We're hoping to have all EQP scores in by April 12th, but in honor of income-tax time in the U.S., we'll extend it to the 17th :) 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE:- Now Camping - Antennas
For 20 meters my favorite is a ground plane. Use a 20 foot Black Widow telescoping fishing pole for a support. Clip one end of a 16.5 foot AWG 26 wire to the loop at the tip with a fishing swivel. Support the pole with a single peg driven into the ground (slip the pole over the peg). Twist the pole to spiral the wire around the pole a couple times to keep it from blowing in the wind. The bottom end the wire will now be about 4 ft above the ground. I use a female BNC to terminate the bottom end of the wire. I secure the BNC to the pole with a Velcro wrap, but a piece of tape would work as well. Cut 3 radials each 16.5 ft long and attach to the ground side of the BNC. A light cord at the end of each radial then runs to 3 tent stakes which are positioned to keep the radials off the ground and act as support guys for the pole. Feed with run of RG58 to your rig. This will give you nice low angle radiation for working DX on 20. The internal tuner in any of the Elecraft rigs will also easily tune it on 30, 17 and 15. Last time I had it up, I worked New Zealand from Colorado with 5W on 15 meters. If you precut the wires and make all the connections ahead of time, this antenna can easily be put up by one person in 10 minutes. The poles are available from Cabellas for $17 if I remember correctly. Quite a bargain - I bought two. If you're more horizontally oriented and want to go first class, the Buddipole system will give you lots of options for dipoles on several bands as well as the ability to configure verticals. Buddipole dipoles at their normal 10 to 20 foot heights will give you higher angle radiation than the ground plane, which may be desirable if you're after stateside QSOs rather than chasing DX. Have fun in the woods! ... Craig AC0DS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 K1-20 - - Now Camping - Antennas
I have a portable dipole that I use for camping. I bought it off ebay. The doublets each roll up in a plastic wind-up contraption. It's kind of like a yo yo tenna deluxe (not made by the same company). The center insulator has two screw terminals that I connect my 300 ohm ladder line to. I've found it's easy to set it up as an inverted vee. I really only have to get the center up as high as I can. Getting the end of the doublets up semi-high is no big deal. It's alot less time and less aggravation then trying to set it up in a true dipole configuration with both ends being up. From NJ running 5 watts into the antenna I worked Switzerland with no problem. 73, James KB2FCV -Original Message- From: Robert Tellefsen [EMAIL PROTECTED] To: Richard Powers [EMAIL PROTECTED]; Elecraft elecraft@mailman.qth.net Sent: Fri, 24 Mar 2006 08:45:31 -0800 Subject: RE: [Elecraft] Elecraft K1-20 - - Now Camping - Antennas Dick Don't let just a single tree in a campsite hold you back. Use it and have fun. Drooping dipoles work just fine. When the xyl and I were camping in Oregon, there were only some rose bushes by our campsite and no trees. So I laid out my 40m dipole over the bushes, about 4 ft above ground, fired up my old HW-8 and had a number of nice QSOs. Great time, sitting at the picnic table with my lantern and a 12v lantern battery for the HW-8. Good luck and 73 Bob N6WG The Little Station with Attitude -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Richard Powers Sent: Friday, March 24, 2006 8:09 AM To: Elecraft Subject: [Elecraft] Elecraft K1-20 - - Now Camping - Antennas Wow, What a support Group Thanks to all the oldsters out there who responded to my cataract problem (surgery went well yesterday by the way). Now my next question is what kind of antennas to use (mostly for 20 meters) when out camping. Here in Northeastern Illinois, most campsites have only one tree to hang a dipole on which would leave the ends to droop to the ground etc. What do most of you guys use when camping? Next question in line will be Power Supplies for the K1. Dick Powers WB9PWQ / AFA3DP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Email difficulties to sales or Lisa
If you sent an email between March 15th and 1:00Pm (noon) Tuesday, March 21st to either [EMAIL PROTECTED] or [EMAIL PROTECTED] your email may have been lost in an email crash on my computer. If you have not received a reply to an email sent during that time please resend your email. Due to a major email known problem ( not to me) with Outlook ( be sure you do not go over 2GB in your Outlook files) emails sent to [EMAIL PROTECTED] or [EMAIL PROTECTED] between March 15th and approximately 1:00PM on Tuesday, March 21st may have been lost. I believe that all but a few emails sent the morning of the 21st were answered. But I could only recover prior to the 16th of March and after 1:00pm on the 21st. NOTE:** There is NO problem with orders placed on the internet or any other Elecraft emails, only those emails sent to sales or lisa. I apologize for any inconvenience and just wanted you all to know I was not ignoring you! Lisa ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Elecraft K1-20 - - Now Camping - Antennas
Along those same lines - back about 10 years ago while trying to participate in field day with a group of local hams at a cabin in the U.P. of Michigan, I ended up stringing an 80m dipole up about 6-10 feet off the ground, and made dozens of contacts within 500 miles (MI, WI, MN, IA, IL, IN). I don't think I was QRP (I believe it was a TenTec Scout at 50W), but it worked well, and I had alot of fun. Daniel AA0NI Oklahoma City --- Robert Tellefsen [EMAIL PROTECTED] wrote: Dick Don't let just a single tree in a campsite hold you back. Use it and have fun. Drooping dipoles work just fine. When the xyl and I were camping in Oregon, there were only some rose bushes by our campsite and no trees. So I laid out my 40m dipole over the bushes, about 4 ft above ground, fired up my old HW-8 and had a number of nice QSOs. Great time, sitting at the picnic table with my lantern and a 12v lantern battery for the HW-8. Good luck and 73 Bob N6WG The Little Station with Attitude -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Richard Powers Sent: Friday, March 24, 2006 8:09 AM To: Elecraft Subject: [Elecraft] Elecraft K1-20 - - Now Camping - Antennas Wow, What a support Group Thanks to all the oldsters out there who responded to my cataract problem (surgery went well yesterday by the way). Now my next question is what kind of antennas to use (mostly for 20 meters) when out camping. Here in Northeastern Illinois, most campsites have only one tree to hang a dipole on which would leave the ends to droop to the ground etc. What do most of you guys use when camping? Next question in line will be Power Supplies for the K1. Dick Powers WB9PWQ / AFA3DP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Underground Antennas (WAS: Ham Ingenuity)
Anybody have any idea how an 80m loop would work at 3m height? We just moved into a new place with NO ANTENNA RESTRICTIONS, but I fell down hard last summer (3 weeks unconscious in ICU) and am not tempted to get very high again. All this talk about on-ground and under-ground antennas made me think of hanging a W0MHS Loop-Skywire at a low height. That a LOT of copperweld for something that hasn’t a chance. I’d hire someone to hang a doublet if I thought it would be much better. But the whole neighborhood is in a hole, about 75 feet below the prevailing terrain, so even a 50’ doublet is really 25’ undergroundg. The hole is several wavelengths wide, so from my roof, the tops of the trees on the “rim” are up about 25 degrees, so very low DX takeoff just ain’t gonna happen. Maybe it’s time I learned if I can run one of those Antenna Modelers. Should I look for Windoze or Linux flavors? Dan / WG4S / K2 #2456 snip The only ground antenna I worked with was a 270 ft. horizontal loop made from #28 enemeled wire. It was in a pentagon shape and laying right on the ground. /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] Antenna in a Bowl (WAS: Underground Antennas)
Dan, WG4S asked: Anybody have any idea how an 80m loop would work at 3m height? We just moved into a new place with NO ANTENNA RESTRICTIONS, but I fell down hard last summer (3 weeks unconscious in ICU) and am not tempted to get very high again. All this talk about on-ground and under-ground antennas made me think of hanging a W0MHS Loop-Skywire at a low height. That a LOT of copperweld for something that hasn't a chance. I'd hire someone to hang a doublet if I thought it would be much better. But the whole neighborhood is in a hole, about 75 feet below the prevailing terrain, so even a 50' doublet is really 25' undergroundg. The hole is several wavelengths wide, so from my roof, the tops of the trees on the rim are up about 25 degrees, so very low DX takeoff just ain't gonna happen. Maybe it's time I learned if I can run one of those Antenna Modelers. Should I look for Windoze or Linux flavors? What affects the pattern is how the wavefront interacts with the earth. That is a function of the polarization of the wave. A horizontal loop and a horizontal dipole or a horizontal doublet will behave the same in terms of the basic pattern affecting the angle of radiation above the horizon. At 3 meters (10 feet) you'll have a good cloud-warmer or what the new Hams call an NVIS antenna all HF bands. (You start to see significant lower-angle radiation when the antenna is about 3/8 wavelengths above the ground and it peaks at just over 1/2 wave above the ground. Above that height you still get FB low-angle radiation, but you lose some of the gain at good DX angles provided by the earth reflections. For high-angle propagation, the ideal height is 0.2 wavelengths effective height. I say effective because the effective height is not always the actual height. Since the earth is a lossy dielectric instead of a decent conductor, the actual height is somewhere below ground level. Measuring from the surface of the earth is close enough. Ground losses increase as the antenna is brought closer, but it will still radiate reasonably well even at very low elevations. My doublet is about 25 feet high. That's also very low for 80 meters; it's definitely a cloud warmer. I work out to about 1,200 miles with it on 80 with usually excellent signal reports out to at least 700 or 800 miles. That's pretty typical range for short-skip propagation. You might actually have another effect at play at your QTH that may gain you some unexpected results: knife-edge effect. When a radio wave passes the edge of the earth, such as the edges of the bowl you live in, the part of the wave in contact with the earth slows down in the earth. That tilts the wave to a lower angle. It also costs signal strength, since that earth is still a lousy, lossy dielectric, but the end result may be some surprising low-angle propagation from a cloud warmer antenna. Something else you might consider is an inverted V arrangement with one tall pole at the center, since you have no antenna restrictions. Years ago I rented a house and was loath to clamber about on the roof, so I picked up a push-up TV mast. It collapsed to about 10 feet and extended to a full 50 feet. It held the center of my inverted V antenna whose ends came down to the eaves at one corner of the house in front and to the fence in the back. No climbing, no high altitude work, but a nice high HF antenna. My radiator was 130 feet long and fed with open wire line. It did a decent job as a Cloud Warmer on 160 and got out very well for DX contacts on the other bands. If you use open wire line, keep it away from the pole. To avoid messing around with standoffs, etc., I ran the open wire line away from the pole at an angle equidistant from the legs to a point along the fence, then to the shack. Just keeping it two or three times the width of the feeders will do. Of course, with coax you have no worries. Of course, I guyed the pole at full height. It was sitting on the ground and attached to the eaves about 8 feet up on a side of the house that had no gutter. Mounted like that I could extend it without guys on a calm day with plenty of guy wire with excess lengths attached to rings as they were hoisted. I then attached the guy wires with only minimal climbing on a short stepladder to reach tie-points on the fence and eaves as needed. With good marine pulley and halyard at the top, I didn't have to move the mast again. I could take the antenna down as needed standing on my patio! For modeling, I use EZNEC from W7EL (www.eznec.com) It runs under windows. Just remember that a modeling program is only as good as the assumptions you make for it. So it is, at best, as guess based on assumptions. (Did I really say that?) 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.):
Re: [Elecraft] Underground Antennas (WAS: Ham Ingenuity)
Dan Barker wrote: Anybody have any idea how an 80m loop would work at 3m height? It would probably work adequately as an NVIS (near vertical incidence something-or-other) antenna. In other words, you would have *very* strong signals out to a couple of hundred miles on 40 meters, a little less on 80. It will not work well for longer paths, although I'm sure there will be surprises. However, I would prefer a doublet if the loop has to go around houses, etc. The reason is that a loop will magnetically couple to house wiring, etc., making it much more prone to RFI and to noise pickup. A simple doublet at this height, fed with ladder line and tuned by a good balanced tuner will probably work as well or better than the loop with fewer problems. You won't work a lot of DX with it, but you will have good local coverage. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Antenna in a Bowl (WAS: Underground Antennas)
Ron, thanks for the thoughtful reply. I bet that describing the bowl in NECeese will be harder than talking someone up two trees 50' or so. I'd love a Loop Skywire again, but it might be harder to talk Carl up FOUR trees. If the models don't make bowl specification easy, or even possible, then a doublet as high as I can manage will have to do. It sure would be sweet if that bowl/knife-edge combined to make the low loop not just a cloud-warmer. I wonder how many other culniary terms I could have gotten into that sentence if I'd really tried? Dan / WG4S / K2 #2456 snip You might actually have another effect at play at your QTH that may gain you some unexpected results: knife-edge effect. /snip snip So it is, at best, as guess based on assumptions. (Did I really say that?) /snip Yes, you did say that, Ron. Join me as I assume the site survey can be input as easily as into Chief Architect (yeah, right). ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] K1 tuning range
Rick: I have K1 #1423 which I build 3 years ago. I first went with the 150 KHz tuning, it was way to touchy and I changed it to 80 KHz. Lately I have wanted to work just above 7.1 MHz and I opened up the K1 and put a silver mica 22 pfd in parallel with C2. I put it on top of the board. I now get up to 7118 KHz and an finding quite a bit of CW above 7.1. The K1 is my only HF rig. A K2 sure would be nice. 73, Ty, W1TF Rick wrote . . . Has anyone gone from 80khz to 150khz and regretted the change?Rick - K7MW __ 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] Elecraft K1-20 - - Now Camping - Antennas
I use a method similar to my home installation of a 100 foot spool of #16 insulated primary wire hanging from a limb high up in a big fir tree. At home it drops from a 70 foot branch at a 45° angle. The copper plumbing system in the crawl space is the ground half of the system. When camping I use the Hyperdog sling shot with mason's line and a 6 oz lead fishing weight to get my 100 foot wire as high as possible into an available tree. I have another similar spool of wire which could be the other half of a dipole if another tree is available. But usually I just string it along the ground somewhere under the first wire to act as a sort of radial. I've used this method with my Icom703 and an MFJ-945C antenna tuner. When camping, I use a short coax between the tuner and a binding post adapter for the wires. That adapter ends up being quite low on a short pole with only about 10-15 feet of coax from the tuner (which also keeps losses at bay with the higher SWR's in this arrangement). I set up the MFJ in the middle of a band (without the 703 tuner engaged) and then use the 703 tuner to refine the match when I move within the band. The MFJ settings are recorded so I can quickly switch between bands. The resulting angles of this type of antenna produce a mix of pattern and propagation characteristics of both horizontal and vertical antennas. Dick Ballard W7AND [EMAIL PROTECTED] Beaverton OR (near Portland) On Fri, 24 Mar 2006 08:09:20 -0800 (PST), you wrote: Wow, What a support Group Thanks to all the oldsters out there who responded to my cataract problem (surgery went well yesterday by the way). Now my next question is what kind of antennas to use (mostly for 20 meters) when out camping. Here in Northeastern Illinois, most campsites have only one tree to hang a dipole on which would leave the ends to droop to the ground etc. What do most of you guys use when camping? Next question in line will be Power Supplies for the K1. Dick Powers WB9PWQ / AFA3DP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Heat strippable enamel wire
Before I go and order the wrong thing, can someone tell me a Mouser or Dig-Key (or other) reference number for heat strippable enamel covered wire similar to that which is provided with the Elecraft kits. Thanks, Tom, WB2QDG K2 1103 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Heat strippable enamel wire
In my experience, it's ALL heat strippable! Your mileage and smells may vary! 73 de Alex NS6Y On Mar 24, 2006, at 12:17 PM, [EMAIL PROTECTED] wrote: Before I go and order the wrong thing, can someone tell me a Mouser or Dig-Key (or other) reference number for heat strippable enamel covered wire similar to that which is provided with the Elecraft kits. Thanks, Tom, WB2QDG K2 1103 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Underground Antennas (WAS: Ham Ingenuity)
--- Dan Barker [EMAIL PROTECTED] wrote: not tempted to get very high again. There's a dope smokin' joke in there just screamin' to get out! Sorry to hear about your fall...sounds like it was a nasty one. If it had to happen, I hope it was at least in pursuit of a better antenna system! 73, Ken Alexander VE3HLS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] XV222 Local Oscillator
The local oscillator on the XV222 will not generate a sufficient signal level. The voltage measured at TP1 is 0.45VDC. When first tested, TP1 read 0VDC. Seeing posts about a balky oscillator being sensitive to L4A, I adjusted the slug while watching at TP1. Sure enough, as the slug was adjusted, TP1 rose from 0VDC to 4.5VDC and then started back toward 0VDC as I continued to turn the slug into L4A. I backed out the slug until TP1 read its maximum of 0.45VDC and then continued out until the voltage at TP1 returned to 0VDC. When oscillating, the frequency measures at 193.995, which is well within the accuracy of my frequency counter. I checked all components and voltages at Q1 Q2, everything was correct. I'm sure there are some clues buried in the above observations, but I'm unable to sort them out. Does anyone have any clue as to how I get the voltage at TP1 up over 1.0VDC? PS I know we are suppose to use non-metallic tools to adjust inductor slugs, but L4A is so tight that the adjusting tool that came with the kit is useless, its nylon shoulders promptly rounded off. Having spare slugs, I tried adjusting L4A slug with a thin metal screwdriver. Do we use non-metallic because 1. metallic screwdrivers will physically damage the slug? 2. metallic screwdrivers will magnetize the slug? 3. metallic screwdrivers affect the readings while adjusting? 4. other? I do have spares from L10, L11 L19, so I can replace the slug if needed. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Bengali Simplex Keyer
Bill, Connect the paddle you want the dots on to the tip of a stereo 3.5 mm phone jack, connect the dah paddle to the ring and connect the paddle common (ground) to the shell - then you can run with INP PDLn, change to INP PDLr to reverse the connection for those with 'other hand persuasion'. Of course, it is just as easy to connect the paddle the other way 'round and use INP PDLr for your normal usage, switch it if required for visitors. 73, Don W3FPR -Original Message- I recently purchased the above keyer; I send with my left hand copy with my right hand. I want the dits on the right paddle(thumb) the dahs on the left paddle(index finger). Ground in the middle. No wire came with it. What kind of wire do I need what wire goes to what to connect it to my K2/100? Thanks. Bill KE5UD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] potentially interesting (sorry, bad pun)
No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf 73, Steve aa8af -Original Message- From: Phil Kane [mailto:[EMAIL PROTECTED] Sent: Thursday, March 23, 2006 11:19 PM To: Steve Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) Do you mean 25 uF? A 25 Farad capacitor would be about the size of a beer barrel!!! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] XV222 Local Oscillator
Matt Osborn wrote: Do we use non-metallic because 1. metallic screwdrivers will physically damage the slug? 2. metallic screwdrivers will magnetize the slug? 3. metallic screwdrivers affect the readings while adjusting? 4. other? Mostly 3 and 1. -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] I'm a forgotten man in his (Bobby Robson's) mind. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] XV222 Local Oscillator
Matt asked: The local oscillator on the XV222 will not generate a sufficient signal level. The voltage measured at TP1 is 0.45VDC. When first tested, TP1 read 0VDC. Seeing posts about a balky oscillator being sensitive to L4A, I adjusted the slug while watching at TP1. Sure enough, as the slug was adjusted, TP1 rose from 0VDC to 4.5VDC and then started back toward 0VDC as I continued to turn the slug into L4A. I backed out the slug until TP1 read its maximum of 0.45VDC and then continued out until the voltage at TP1 returned to 0VDC. When oscillating, the frequency measures at 193.995, which is well within the accuracy of my frequency counter. I checked all components and voltages at Q1 Q2, everything was correct. I'm sure there are some clues buried in the above observations, but I'm unable to sort them out. Does anyone have any clue as to how I get the voltage at TP1 up over 1.0VDC? --- Is the local oscillator transistor mounted up off the board with a Teflon spacer on one lead as shown in the assembly manual? 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
[Elecraft] AGC off problem solved
I can report a success with my problem I reported yesterday. I changed C8 to 10 pF and now AGC off works as expected. Thanks to Gary, Wayne and everybody on the list for their support. Its great how this group works together. Wayne suggested this too: The simplest cure for this may be a different capacitor in the oscillator that makes it too inefficient at reduced bias to even start. You might try 10 pF at C8 or 680 pF at C7 73! de Werner OE9FWV -- f u cn rd ths, u cn gt a gd jb n cmptr prgmmng Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] XV222 Local Oscillator
On Fri, 24 Mar 2006 14:53:26 -0800, Ron D'Eau Claire [EMAIL PROTECTED] wrote: Matt asked: The local oscillator on the XV222 will not generate a sufficient signal level. The voltage measured at TP1 is 0.45VDC. When first tested, TP1 read 0VDC. Seeing posts about a balky oscillator being sensitive to L4A, I adjusted the slug while watching at TP1. Sure enough, as the slug was adjusted, TP1 rose from 0VDC to 4.5VDC and then started back toward 0VDC as I continued to turn the slug into L4A. I backed out the slug until TP1 read its maximum of 0.45VDC and then continued out until the voltage at TP1 returned to 0VDC. When oscillating, the frequency measures at 193.995, which is well within the accuracy of my frequency counter. I checked all components and voltages at Q1 Q2, everything was correct. I'm sure there are some clues buried in the above observations, but I'm unable to sort them out. Does anyone have any clue as to how I get the voltage at TP1 up over 1.0VDC? --- Is the local oscillator transistor mounted up off the board with a Teflon spacer on one lead as shown in the assembly manual? Hi Ron, Yes, Q1 is mounted 3/8 high with the teflon spacer. I was thinking that the crystal is OK because it oscillates at the correct frequency. How critical is the MPS 918? Could I substitute a 2N in place of Q1 just to check out the operation of Q2 (BFR96)? Is that a sensible thing to do? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] potentially interesting (sorry, bad pun)
In one of my trade magazines I recently read of a 3000 F capacitor. Yes, kiloFarads. Interesting things are happening in the super capacitor field. Kevin. KD5ONS -Original Message- From: Steve [EMAIL PROTECTED] Sent: Mar 24, 2006 5:19 PM To: 'Phil Kane' [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf 73, Steve aa8af -Original Message- From: Phil Kane [mailto:[EMAIL PROTECTED] Sent: Thursday, March 23, 2006 11:19 PM To: Steve Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) Do you mean 25 uF? A 25 Farad capacitor would be about the size of a beer barrel!!! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] potentially interesting (sorry, bad pun)
Steve wrote: No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf Hmmm ... I wonder what the inductance of the 600F cap is? If it's really low, and you could short the terminals with a screwdriver at 10 milliohms, that would be a pulse of a couple hundred amps, and likely a large electrical display. Conversely, if it is discharged, you probably wouldn't want to connect it directly across a 2.5V power supply. I believe capacitors like this are used in the hot rods that boom down the road with multi-hundred watt amplifiers. I'll ask our oldest grandson ... such electronics take up the whole trunk of his car. Fred K6DGW Auburn CA CM98lw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] potentially interesting (sorry, bad pun)
But not as bad as this one. That 3KF cap sounds expensive. To buy one, I'd guess you have to charge it... ;-) :-) :-) On Mar 24, 2006, at 3:45 PM, Kevin Rock wrote: In one of my trade magazines I recently read of a 3000 F capacitor. Yes, kiloFarads. Interesting things are happening in the super capacitor field. Kevin. KD5ONS -Original Message- From: Steve [EMAIL PROTECTED] Sent: Mar 24, 2006 5:19 PM To: 'Phil Kane' [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf 73, Steve aa8af -Original Message- From: Phil Kane [mailto:[EMAIL PROTECTED] Sent: Thursday, March 23, 2006 11:19 PM To: Steve Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) Do you mean 25 uF? A 25 Farad capacitor would be about the size of a beer barrel!!! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 -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
Fw: Re: [Elecraft] potentially interesting (sorry, bad pun)
-Forwarded Message- From: Kevin Rock [EMAIL PROTECTED] Sent: Mar 24, 2006 7:09 PM To: Jack Brindle [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] potentially interesting (sorry, bad pun) But, much like the muzzle of a firearm, you do not want to be close when it discharges! Kevin. KD5ONS -Original Message- From: Jack Brindle [EMAIL PROTECTED] Sent: Mar 24, 2006 7:06 PM To: Kevin Rock [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] potentially interesting (sorry, bad pun) But not as bad as this one. That 3KF cap sounds expensive. To buy one, I'd guess you have to charge it... ;-) :-) :-) On Mar 24, 2006, at 3:45 PM, Kevin Rock wrote: In one of my trade magazines I recently read of a 3000 F capacitor. Yes, kiloFarads. Interesting things are happening in the super capacitor field. Kevin. KD5ONS -Original Message- From: Steve [EMAIL PROTECTED] Sent: Mar 24, 2006 5:19 PM To: 'Phil Kane' [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf 73, Steve aa8af -Original Message- From: Phil Kane [mailto:[EMAIL PROTECTED] Sent: Thursday, March 23, 2006 11:19 PM To: Steve Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) Do you mean 25 uF? A 25 Farad capacitor would be about the size of a beer barrel!!! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 -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
[QRP-L] Tenna Dipper
Yesterday I played antenna, changing the height of two antennas. Today my 40-M Inverted V fed with 50-ohm RG8-X had high SWR; it had worked the day before at a lower height, hm. I built one of those 4SQRP Tenna Dippers some time ago. Sure enough the LED didn't come close to extinguishing when I dipped the antenna. So I re-soldered the connections, still bad. By raising the antenna I ended up changing the geometry, the V angle had flattened some affecting the impedance. It was easy to adjust the angle using the Tenna Dipper. With the Tenna Dipper at resonance frequency and LED light lit, I just loosened the V end support ropes and played with the angle until the LED exactly extinguished. I really did dip my antenna. Nice gadget! Mike Scott AE6WA Tarzana, CA DM04 __ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
RE: [Elecraft] XV222 Local Oscillator
Hi Ron, Yes, Q1 is mounted 3/8 high with the teflon spacer. I was thinking that the crystal is OK because it oscillates at the correct frequency. How critical is the MPS 918? Could I substitute a 2N in place of Q1 just to check out the operation of Q2 (BFR96)? Is that a sensible thing to do? ___ You've run flat up against all I know about the L.O. I would suspect a flaky transistor or, possibly, a low-activity crystal. They can be on frequency and still not provide the drive needed. As you probably know, overtone oscillators are finicky things. I'm not the engineer on that project so I can't answer your question about substituting Q1. I'd suggest dropping Gary a line at [EMAIL PROTECTED] He may have dealt with that issue already for someone else! 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] XV222 Local Oscillator
The local oscillator on the XV222 will not generate a sufficient signal level. The voltage measured at TP1 is 0.45VDC. When first tested, TP1 read 0VDC. Seeing posts about a balky oscillator being sensitive to L4A, I adjusted the slug while watching at TP1. Sure enough, as the slug was adjusted, TP1 rose from 0VDC to 4.5VDC and then started back toward 0VDC as I continued to turn the slug into L4A. I backed out the slug until TP1 read its maximum of 0.45VDC and then continued out until the voltage at TP1 returned to 0VDC. When oscillating, the frequency measures at 193.995, which is well within the accuracy of my frequency counter. -- As I don't have an XV222, I am assuming that the local oscillator is an overtone oscillator. In most overtone oscillators there is a tuned circuit that selects the required overtone frequency, in this case 193.995 MHz, and I am guessing that L4A is part of that tuned circuit. If all the components and DC voltages are OK, the result that you are getting is typical if the tuned circuit cannot be tuned properly. It sounds as though the inductance of L4A is reaching its maximum as you turn the slug in, but not enough inductance is obtained, and as you continue to turn the slug into L4A its inductance starts to decrease again. Another possibility is an out of tolerance capacitor in the tuned circuit which if on the low side would require greater inductance than usual from L4A, and L4A can't provide it. A maybe possibility is that the crystal you have is sluggish at the overtone used.. If however the LO is an oscillator followed by frequency multipliers and L4A is in one of the tuned circuits, then what I said about the position of the L4A's slug and the capacitor tolerance would also apply. Metal tuning tools are a no no when the tool must connect with the slug. Very easy to break slugs and the tool has its own effect on tuning by just being near or in the coil. Hope that this helps. 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
[Elecraft] K1 Mod
Has anyone modified a K1 so that you can transmit/receive on 3700? John Lally W7JJL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] potentially interesting (sorry, bad pun)
I remember in my high school physics class (1955) the instructor (ex- W7TSZ) told us that it might be possible to build a ONE farad capacitor, but it would be as big as the classroom. Times have really changed! 73, Bob, N7XY On Mar 24, 2006, at 3:45 PM, Kevin Rock wrote: In one of my trade magazines I recently read of a 3000 F capacitor. Yes, kiloFarads. Interesting things are happening in the super capacitor field. Kevin. KD5ONS -Original Message- From: Steve [EMAIL PROTECTED] Sent: Mar 24, 2006 5:19 PM To: 'Phil Kane' [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) No, I wrote correctly. 25 FARADS. But, this is SMALL in comparison. Elna offers 600F @ 2.5V. About 5 long x 1.5 diameter! YES, 600 Farads. I kid you not. I did a double-take on this one. Really! See: http://www.elna.co.jp/en/ct/pdf/DPe.pdf 73, Steve aa8af -Original Message- From: Phil Kane [mailto:[EMAIL PROTECTED] Sent: Thursday, March 23, 2006 11:19 PM To: Steve Subject: RE: [Elecraft] potentially interesting (sorry, bad pun) Do you mean 25 uF? A 25 Farad capacitor would be about the size of a beer barrel!!! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] potentially interesting (sorry, bad pun)
On Fri, 24 Mar 2006 17:58:53 -0800, Bob Nielsen wrote: I remember in my high school physics class (1955) the instructor (ex- W7TSZ) told us that it might be possible to build a ONE farad capacitor, but it would be as big as the classroom. Times have really changed! The materials have changed but the laws of physics haven't. It depends on the voltage. Power line capacitors (used for power factor correction) are as big as power line tranformers in some cases. -- 73 de K2ASP - Phil Kane ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] mfj 297 mike with K2
Does anyone have experience with the MFJ 297 mike and the K2? John ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
