RE: [Elecraft] K3 Duty cycle
At 0114 EDT on Sat 17 May 2008 Jim Miller (KG0KP) wrote ... What is considered the practical duty cycle of the K3/100 ...? -- Jim, Page 9 of the K3 manual states: Duty Cycle CW and SSB modes, 100% 10-min. 100W key-down at 25 C [77 F] ambient : : I assume the K3 owner's manual is more up to date than the following FAQ entry on Elecraft's website : : Q: Does the KPA3 have plenty of power to allow for 100-W full duty cycle operation in all modes? A: We may limit power level or maximum TX time for 100% duty-cycle modes (AM/FM/FSK). I can't say for certain, because we're still doing extended transmit tests. We used two fairly large, standard-size fans so they'd run at slow speed in most operating situations. But fans in this size are readily available with higher CFM ratings, so we could offer an extended- duty-cycle upgrade if that were warranted. This would only increase the depth of the fans; you wouldn't have to add fans to the top of the cabinet The fans have 4 speeds, are temperature controlled, and they turn off when not needed. They're large and quiet. In fact the entire fan panel is an upgradeable module -- we wanted to make sure the K3 could adapt to specialized requirements. So far our feedback from RTTY contesters is that they were able to operate a whole contest without getting the K3's heatsink too hot. The fans rarely went to full speed. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Vs 7700
Well I have read the claims of the 7700 and I don't see where they are anywhere near exceptional. To the contrary, I think they are pretty ordinary and for the price?...H, glad I had the good sense to get the K3. Just my 2 cents worth. Gary...#679..and loving it!!! -- I think I must be suffering from Alzheimers, I've forgotten this before ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Shipping to UK
David Cutter wrote: I gave my firm's address, so it came all the way by UPS and what's more they didn't want the VAT in advance, it just went on the monthly VAT import bill to my firm, so I got more time to pay and no delay. This is probably a tip Today I got a letter from Parcel Farce demanding the ransom fee. This includes a GBP 13.50 clearance fee - more than a quarter of the amount of the VAT. I can pay it online, over the phone or through the post. I paid it online, and have been given a delivery date of next Tuesday. I could have gone to the depot to collect it, and had it today, but Parcel Farce don't use the local Post Office, and the depot is nearly an hour's drive away. With petrol at over GBP 5 a gallon now (that's 10 USD to the rest of you) you think twice about getting the car out these days. I can't remember how much UPS charged for taking the VAT when the K3 came, but I'm sure it wasn't 13.50, and I was able to pay the driver as well so delivery wasn't further delayed. I think UPS is probably the best option for all but the smallest items. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-Shipping-to-UK-tp17273511p17289181.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Katiegram
For those of you following this, Katiegram received today for a K3/100 kit, ordered 24 December just as Santa was flying overhead! Estimated shipping date two weeks ahead. Yabadabadoo! Stephen G4SJP ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 has no TX audio...any ideas?
It's a TAP or HOLD switch (all four of those knobs there do that) and in this case you should be HOLDing it - just long enough until both CMP PWR leds go out. You don't have to hold it while you turn (as opposed to some of the filter functionality introduced later where you HOLD TURN at the same time). 73 de M0XDF, K3 #174 -- The secret of life is honesty and fair dealing. If you can fake that, you've got it made. -Groucho Marx On 17 May 2008, at 06:22, Dick Roth wrote: Ken Kopp wrote: Hello Dick, Just a thought . The MON function also has a gain control to the monitor level. Push in the CMP / PWR knob and adjust the level ... 0 - 40. 73! Ken Kopp - K0PP [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Wow! It never occurred to me to keep it pushed in. And I couldn't figure out whether to use Pwr or Cmp...doh ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 has no TX audio...any ideas?
David Ferrington, M0XDF wrote: It's a TAP or HOLD switch (all four of those knobs there do that) and in this case you should be HOLDing it - just long enough until both CMP PWR leds go out. You don't have to hold it while you turn (as opposed to some of the filter functionality introduced later where you HOLD TURN at the same time). 73 de M0XDF, K3 #174 David, there's so much to learn about this rig! The last hf rig I owned was a National NCX-3. Three bands and two bandwidths (CW SSB). Plain and simple (of course one had to tune the radio (dip the plate, increase the drive, etc.). Thanks for the pointer. -- 73, Dick ka1oz Middleborough, MA K3/100(Kit) SN 000859 Titan-DX (to come) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Zero beat hint and why 800hz maximum?
O. Johns wrote: Also, 740.0 is within a fraction of a Hertz of a correctly tuned (well-tempered tuning) F#. So there is good reason to have the increments of sidetone pitch be 10 Hz rather than 50 Hz. Might it not be better to use a logarithmic scale (e.g. equal tempered semi-tones) or a near logarithmic scale, with rational frequency ratios (natural (is this well tempered?) semitones). -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 BETA FIRMWARE RELEASE -- MCU rev 1.94
Tom Childers, N5GE wrote: In the Army they taught us to turn on the spot signal and tune the spot against the received signal. When you hear the warbling stop, you are zero beat on the RX signal. That's easy if you are trying to tune against a continuous carrier, but you are normally tuning against a signal that is being 100% amplitude modulated at about 10 to 30 baud (12 to 36 wpm). It gets quite difficult to separate the amplitude modulation from the keying from that from the beating. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 BETA FIRMWARE RELEASE -- MCU rev 1.94
Dave, I don't agree with your conclusion at all. It just takes practice. If you're having trouble crank the filter width of the DSP to a narrow setting and tune until the signal peaks. That will be close enough. The extraneous signals from other stations and noise within wide filter settings are much more of a problem than the on off nature of CW. Having to accurately zero beat is much over rated, in my opinion. The practice and requirement to zero beat really came from the old days where rigs drifted like crazy. One had to start near zero beat to have a chance to be heard. It wasn't at all uncommon to drift completely out of the RX passband while calling a station. In fact, older more skilled ops knew which direction the rig drifted. They would include this knowledge and start calling off frequency so that the drift would bring then to and through zero beat while calling. It also was much more relevant when there was only a single answering station. Now the name of the game is to stand out somehow-- be it strongest or most in the clear. Call them where they are listening really applies. I frankly don't see the practicality of using the auto zero beat function when a station is listening on ever changing frequencies that are not zero beat. Thus there is also an art aspect to working stations. Of course we're talking CW here. Interesting that nobody is complaining about not being able to zero beat in SSB. I frankly find that a much more challenging exercise. It certainly is mentally much more complex. The algorithm seems to be tune until it sounds right. Same with CW. One has to experiment to define right 73 de Brian/K3KO David Woolley (E.L) wrote: Tom Childers, N5GE wrote: In the Army they taught us to turn on the spot signal and tune the spot against the received signal. When you hear the warbling stop, you are zero beat on the RX signal. That's easy if you are trying to tune against a continuous carrier, but you are normally tuning against a signal that is being 100% amplitude modulated at about 10 to 30 baud (12 to 36 wpm). It gets quite difficult to separate the amplitude modulation from the keying from that from the beating. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 BETA FIRMWARE RELEASE -- MCU rev 1.94
Brian, exactly ! If it is such a chore to zero beat a CW station, how did we ever do it when we did not have all these aids. I do in fact ponder a bit in zeroing an SSB station sometimes on a net freq when it seems to me he may be 10 cycles or so off. But CW is just no sweat. I am amazed at some reflectors ( I also read the Tentec and IC-7700 reflector, Alpha reflectors, ACOM reflectors) when folks seem to be confused by mike gain controls, rf output controls, antenna jacks. Good Grief ! I am convinced that some of these folks could not pass the novice exam I took in 1957, and they have extra class calls. Even an understanding of ohm's law seems to escape some folks, and I am sure some extra class licensees could not build a dipole. But I am getting off the subject. Getting close rather than getting precisely on a CW station has its advantage since you want a bit of separation from all others that may be calling a station. Dont sweat the small stuff. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RTTY Filter for K3
J. Edward (Ed) Muns wrote: I agree with Joe's summary. Note that the 250 Hz 8-pole filter is really about 370 Hz at the -6 dB point. Any of the current 500, 400 or 250 Hz crystal filters will be fine for RTTY. With any of them, the DSP can be narrowed to 300 Hz without rolling off the outside edges of the two tones. Note that the Dual-Tone Filter for RTTY is cascaded with the crystal and normal DSP filters and if either of the latter two filters are 250 Hz (at -6 dB) the three-filter-cascade will have significant roll-off on the outside skirts. This has the undesired effect of moving the two filter peaks much closer together than the 170 Hz split. That said, I have been running the 370 Hz crystal filter (aka 250 Hz 8-pole) with 200 Hz DSP and the DTF for several months now in RTTY contests. While the resultant passband was indeed rolled off as described, this was overall a net benefit in heavy pileup conditions because it filtered out the pileup better, producing a clear callsign quicker, despite the rolled-off passband. In other than heavy pileup conditions, it is best to keep the DSP at 300 Hz or higher, especially for copy of weaker signals. In the future, there will probably be a 200-400 (or 200-500) Hz variable 5-pole crystal filter that will be ideal to track with the DSP for high performance RTTY reception, ranging from weak signal to heavy pileup conditions. Thanks to both Joe and Ed. I hadn't realised just how wide Inrad's so-called 250Hz filter is. 50% wider than nominal is frankly ridiculous. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 has no TX audio...any ideas?
Did you stay up all night playing with it??? ;) Dave Wilburn K4DGW K2/100 - S/N 5982 K3/100 - S/N 766 For those who fought for it, freedom has a flavor the protected will never know. Dick Roth KA1OZ wrote: David Ferrington, M0XDF wrote: It's a TAP or HOLD switch (all four of those knobs there do that) and in this case you should be HOLDing it - just long enough until both CMP PWR leds go out. You don't have to hold it while you turn (as opposed to some of the filter functionality introduced later where you HOLD TURN at the same time). 73 de M0XDF, K3 #174 David, there's so much to learn about this rig! The last hf rig I owned was a National NCX-3. Three bands and two bandwidths (CW SSB). Plain and simple (of course one had to tune the radio (dip the plate, increase the drive, etc.). Thanks for the pointer. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] yeah Hoooo!
Order placed Dec 23. Katiegram arrived late yesterday (Friday). Other than for ironing out a couple of discrepancies I am totally ready to take delivery of that K3. Garry/Ve7ajj ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 SN 192 ?
I have a chance to buy a rather early K2 in unbuilt kit form. It's serial number 192. It has the SSB adaptor, Noise blanker, Audio filter, a set of pre-wound toroids and the Revision B boards and parts and updated manual. In doing some research on the WWW, I see there have been a number of changes/modifications over the years by the factory and others. I've run across alternate wiring for the AF gain and mention of a cure for BFO drift. Does someone have a list of the various changes that I should incorporate while building this rather early K2 should I decide to take the plunge and buy it? Thanks 73, Puck ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] problem with low output in SSB on 40m,80m
hi, I uploading yesterday the new firmware MCU 01.88, FPF00.01, DSP1/DSP2 01.70 in my K-3 nr 576, now I see a very low output abt 15 watts in SSB on 40m band and lower. 20m and higher works normaly with output 100 watts. CW is also no problem with 100 watts on all bands. Hope somebody can help me.. Wim PA2AM -- View this message in context: http://www.nabble.com/problem-with-low-output-in-SSB-on-40m%2C80m-tp17292793p17292793.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K-3 S-Meter Absolute test
I thought I would pass on the results of my testing the absolute S-meter mode using the XG2 signal generator as reference source. I am using beta FW 01.96/00.02/0.173 The VFO-B help menu for Smtr scale says that the S-meter is calibrated with preamp on, and AGC on. It looks from my data that my unit S#508 the calibration is consistent with pre amp off, not on. Was there a change? Test results using default S-meter parameter settings and AGC on are below. Filter used for this test is the stock 2.7 KHz 5 pole. Test was done on 40M, F = 7.040 MHz with receiver zero beat to tone (using 50 Hz bandwidth to zero beat). I notice that with 500 Hz filter and 6 Khz filter settings that all measurements below move down an S, see note below. Smtr mode = Nor Pre Amp off, ATT off 50-uV = S-9 1-uV = S-3 Smtr mode = Nor Pre Amp on, ATT off 50-uV = S-9 + 10 dB 1-uV = S-5 Smtr mode = Nor Pre Amp on ATT on 50-uV = S-9 1-uV = S-3 Smtr mode = Abs Independent of ATT or Preamp settings 50-uV = S-9 1-uV = S-3 I like the absolute mode and will leave it there. Since running this test I have adjusted filter gains of the 6 KHz and 500 Hz filters up by 3dB to equalize the S meter readings (and audio) independent of filter settings. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Katiegram
K3/100 Assembled, KAT3, KXV3, 2.8K, 500. Ordered Dec 21, 2007 Katiegram May 16, 2008. KRX3 Sub Receiver and KFL3A-2.8K back ordered. scheduled to ship about three weeks from confirmation --Tim N9IW -- View this message in context: http://www.nabble.com/K3-Katiegram-tp17292326p17292326.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Bandwidth SAV Not Working
I would like to know if the SAV function has been temporarily disabled in firmware. This is the function that sets the bandwidth in memory and is accessed by pushing in the SHIFT knob for approx 3 seconds. These memories are set through --NOR-- selection. Presently I cannot SAV new bandwidth settings. Roy Morris W4WFB K3 #323 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Dayton 2008
I was wondering about any Dayton news also. I was guessing that Icom might be trying to unload PRO IIIs with the 7700 out now. I've sure seen lots of PRO IIIs up for sale. I got rid of mine just in time. Only American made rigs from now on. Elecraft, Flex, Alpha and Dentron. 73, Dave N8AG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Bandwidth SAV Not Working
Works OK here. 73 Stewart G3RXQ On Sat, 17 May 2008 12:02:33 -0400, Roy Morris wrote: I would like to know if the SAV function has been temporarily disabled in firmware. This is the function that sets the bandwidth in memory and is accessed by pushing in the SHIFT knob for approx 3 seconds. These memories are set through --NOR-- selection. Presently I cannot SAV new bandwidth settings. Roy Morris W4WFB K3 #323 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SN 192 ?
It is a matter of price. It can be built to be current. You may need some new parts from Elecraft. Look at LA3ZA's Unofficial Guide to Elecraft K2 Modifications. You can find it on Elecrafts website. You will get a feel of what you are up against. George ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SN 192 ?
Yes, Elecraft some dedicated K2 owners have the data on line. Elecraft has upgrade kits to bring your vintage K2 up to the current configuration and performance. For a list of the various upgrade kits for the K3, see: http://www.elecraft.com/order_form_parts.htm#K2Parts If you want to review each mod independently and perhaps incorporate them using parts on hand check this excellent list compiled by Sverre, LA3ZA that features links to detailed how-to documents for each mod: http://www.qslnet.de/la3za/K2/mod.html Also, there's a wealth of information about the K2, mods and application notes on the Elecraft web site: http://www.elecraft.com/Apps/K2info.html Ron AC7AC -Original Message- I have a chance to buy a rather early K2 in unbuilt kit form. It's serial number 192. It has the SSB adaptor, Noise blanker, Audio filter, a set of pre-wound toroids and the Revision B boards and parts and updated manual. In doing some research on the WWW, I see there have been a number of changes/modifications over the years by the factory and others. I've run across alternate wiring for the AF gain and mention of a cure for BFO drift. Does someone have a list of the various changes that I should incorporate while building this rather early K2 should I decide to take the plunge and buy it? Thanks 73, Puck ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] What a ( K3 ) case!!!
Hi guys. Just received my K3 carry case from Rose Kopp (N7HKW). Very well made. Holds the K3 (#253) securely and safely. No financial interest, just a very satisfied customer. Email her at: [EMAIL PROTECTED] or [EMAIL PROTECTED] 73 Ken WB2ART www.unpcbs.com www.wb2art.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SN 192 ?
A few years ago I purchased an unbuilt K2 from eBay. It had a serial number in the 1300s. One of the best pieces of advice I got was to order a current (new) main PCB, and to incorporate all of the recommended upgrade kits during the build. The updated circuit board kit allowed me to incorporate the needed upgrades with minimal difficulty. A bit of study of the upgrades and modifications is needed to make sure that you don't end up going backwards by mistake, but even that was relatively easy. I think the item you need is called the K2 rev A to rev B upgrade kit - or something very much like that. Check the Elecraft web site for a better description, prices, and installations instructions. My K2 has since seen additional upgrades and additions, and is now a current spec radio that meets all of the performance requirements of the very latest models. In my opinion, the ability to keep any radio updated to factory fresh is the number one feature of all Elecraft products. Good luck with your new kit! - Jim, KL7CC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - signal loss in band-pass filter
I recently completed my K2 and everything seemed to work OK. All tests are ok with exception of a slightly low 8V regulator output (7.59V). The sensitivity seems low however (my KX1 is much better at this point). Tracing the receiver revealed that sensitivity is top notch at certain points. This is where it gets weird... When I inject a signal on the north side (according to schematic) of C7 (40m), C15 (80M), C24 (20M) and the same on all other bands, the sensitivity is great. But when I inject the signal on the other side of these capacitors (pin 8 on the relays), the level drops (at least 20db) to the same as what it is at antenna, W6, W1,D2/D3, D3/D4 and all other points along the signal path. I removed W6 and RFC7 to isolate the problem and to see if anything in the T-R switch or Low Pass filters could pull the signal down but there is no change. I still only hear a weak signal when I inject a signal at pin7 or 8 on the respective relays. But as soon as I touch either side of C6 for 40m, L7 for 80m, C22 for 20m etc, it is as strong as it should be. I have measured all the relays for potential shorts but they seem to be fine. Any ideas out there? 73, Are - LB3SA -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17294418.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SN 192 ?
Puck, If the price is right, you can end up with a K2 that is an exact equal of the current shipped K2s. You did say it has the Rev B boards included, and that is the current ship level for the boards. I know you will need to order the Keying Waveshape Mod and a couple 1N4148 diodes over and above any kits associated directly with the A to B conversion. You will also have to inventory just which mod kits have been included with the A to B upgrade - there is the basic K2ATOBKT, but there are several 'optional' kits too (I don't consider them really optional for a complete job). Some of them may be included in the package he has, maybe not. In addition, you would want to order and use the newer spec'ed IF crystals (these were introduced after SN 2560), and you will want to be careful with the pre-wound toroids for a few have changed (L25, L26, T7 and T3 are the specific ones I recall). You may or may not have to order the newest firmware (I don't know which level he would have). All in all, it should be an easy task with the new set of boards - the AF Gain wiring changes are already on the new rev boards. It would actually be best if you built to the current manual instructions rather than either manual that might be included. Price-wise, the entire set of A to B mod kits (exclusive of the boards) total to less than $150 including the new firmware. With that as a consideration, you can intelligently negotiate the price. After you have the kit(s) in hand, we can help you sort out which of the mod kits are present and which need to be ordered. The task of getting everything straight may be a bit confusing at first, but once that accomplished, the build should be straightforward using the current manual. Note that with the purchase of the Rev B. boards, there should have been a new serial number too, and that serial number will be greater than 3000. 73, Don W3FPR H. M. Motley Jr. wrote: I have a chance to buy a rather early K2 in unbuilt kit form. It's serial number 192. It has the SSB adaptor, Noise blanker, Audio filter, a set of pre-wound toroids and the Revision B boards and parts and updated manual. In doing some research on the WWW, I see there have been a number of changes/modifications over the years by the factory and others. I've run across alternate wiring for the AF gain and mention of a cure for BFO drift. Does someone have a list of the various changes that I should incorporate while building this rather early K2 should I decide to take the plunge and buy it? Thanks 73, Puck ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - signal loss in band-pass filter
Are, Do you have anything attached to J13 (Xverter Interface)? If not a resistance measurement between pin 7 of one of the relays K1, K2 etc and ground with the K2 switched OFF, and W6 removed, should read a very high value, I would expect 1 Megohm. There is also the remote possibility that one of the relays is stuck with its pin 7 connected to its pin 8, something which could be checked with a resistance measurement with the K2 turned off. 73, Geoff GM4ESD Are, LB3SA, wrote on Saturday, May 17, 2008 6:44 PM I recently completed my K2 and everything seemed to work OK. All tests are ok with exception of a slightly low 8V regulator output (7.59V). The sensitivity seems low however (my KX1 is much better at this point). Tracing the receiver revealed that sensitivity is top notch at certain points. This is where it gets weird... When I inject a signal on the north side (according to schematic) of C7 (40m), C15 (80M), C24 (20M) and the same on all other bands, the sensitivity is great. But when I inject the signal on the other side of these capacitors (pin 8 on the relays), the level drops (at least 20db) to the same as what it is at antenna, W6, W1,D2/D3, D3/D4 and all other points along the signal path. I removed W6 and RFC7 to isolate the problem and to see if anything in the T-R switch or Low Pass filters could pull the signal down but there is no change. I still only hear a weak signal when I inject a signal at pin7 or 8 on the respective relays. But as soon as I touch either side of C6 for 40m, L7 for 80m, C22 for 20m etc, it is as strong as it should be. I have measured all the relays for potential shorts but they seem to be fine. Any ideas out there? 73, Are - LB3SA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Dayton 2008
http://www.youtube.com/watch?v=TFuy01zZR4g This japanese company has a new radio with a good looking amber/orange LCD display. KN1w On May 17, 2008, at 12:22 PM, Dave Agsten wrote: I was wondering about any Dayton news also. I was guessing that Icom might be trying to unload PRO IIIs with the 7700 out now. I've sure seen lots of PRO IIIs up for sale. I got rid of mine just in time. Only American made rigs from now on. Elecraft, Flex, Alpha and Dentron. 73, Dave N8AG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Dayton 2008
WOW am I ever underwhelmed! Doug W6JD -- Original message -- From: Lou Aguilar [EMAIL PROTECTED] http://www.youtube.com/watch?v=TFuy01zZR4g This japanese company has a new radio with a good looking amber/orange LCD display. KN1w On May 17, 2008, at 12:22 PM, Dave Agsten wrote: I was wondering about any Dayton news also. I was guessing that Icom might be trying to unload PRO IIIs with the 7700 out now. I've sure seen lots of PRO IIIs up for sale. I got rid of mine just in time. Only American made rigs from now on. Elecraft, Flex, Alpha and Dentron. 73, Dave N8AG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - signal loss in band-pass filter
Are, The 'wierd' symptoms you report could be normal depending on the output characteristics of your signal generator. The capacitors C7 and C8 in the 40 meter bandpass form a voltage divider that is intended to match the high impedance of the filter parallel tuned circuits down to a lower impedance level. If a signal is arbitrary injected at the top end of C7, there can (and likely will) be more voltage developed across the filter than if the same signal voltage is injected at the junction of C7 and C8 (a similar argument applies to the other bands). Put RFC7 and W6 back in place to give the proper termination for the filter. A valid comparison is to compare the signal at the junction of C7 and C8 with the signal at the junction of C4 and C5. That would give an indication of the loss through the bandpass filter. That comparison is more easily done in transmit than receive (the filter is bi-lateral). Compare the RF voltage at the junction of D6 and D7 with the RF voltage at W6 using a transmit power level of 1 to 2 watts. If the bandpass filter is not indicating a substantial loss, then you may have some other problem in the receive path. If your bandpass filter does show a substantial loss, try re-peaking it first, and if that does not produce adequate results, then look for an impedance mismatch at the filter terminations - check R36 and R5 first for proper values and good soldering. There are many other places other than the bandpass filter that can cause weak receive. If your K2 develops full output power on all bands, then the bandpass filter is likely not the problem area. 73, Don W3FPR Are LB3SA wrote: I recently completed my K2 and everything seemed to work OK. All tests are ok with exception of a slightly low 8V regulator output (7.59V). The sensitivity seems low however (my KX1 is much better at this point). Tracing the receiver revealed that sensitivity is top notch at certain points. This is where it gets weird... When I inject a signal on the north side (according to schematic) of C7 (40m), C15 (80M), C24 (20M) and the same on all other bands, the sensitivity is great. But when I inject the signal on the other side of these capacitors (pin 8 on the relays), the level drops (at least 20db) to the same as what it is at antenna, W6, W1,D2/D3, D3/D4 and all other points along the signal path. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] An K2 with 2M transceiver.
Hello all. An idea I gor recently was to order another K2 and incorporate an 2M transverter in to it. Would this be possible, or am I crazy just thinking about it? I guess that the Auxbus would be avaible inside the transceiver so that the control should not be any problem. Does anyone know if the Elecraft 2M transverter would fit inside the K2? If so then it migth just be to find an way to incorporate it to the top cover and maybe screen it some? Best 73's de Thomas LA3PNA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Zero beat hint and why 800hz maximum?
Please forgive me for jumping in without having fully followed this thread so if this has been mentioned already, I apologize. I have a visual zero beat indicator on my K2 which was supplied by Tom N0SS. Works great uses the 10th LED of the S/RF meter to tell when a signal if in the middle. Again I've only been partially following so this has been already mentioned Tom wb2qdg k2 1103 Original Message - From: Norm Duxbury [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, May 16, 2008 8:52 PM Subject: [Elecraft] Re: Zero beat hint and why 800hz maximum? Willis, Don't forget, your K3 will have CWT which gives a visual indication of cw zero beat. It works very well. 73, Norm - W1MO 'Cookie' wrote:I don't know what technique I will use with my K3. I will have to wait until I get it on the air to find out. (December 27 order and still waiting). ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SN 192 ?
H. M. Motley Jr. wrote: I have a chance to buy a rather early K2 in unbuilt kit form. It's serial number 192. It has the SSB adaptor, Noise blanker, Audio filter, a set of pre-wound toroids and the Revision B boards and parts and updated manual. In doing some research on the WWW, I see there have been a number of changes/modifications over the years by the factory and others. I've run across alternate wiring for the AF gain and mention of a cure for BFO drift. Does someone have a list of the various changes that I should incorporate while building this rather early K2 should I decide to take the plunge and buy it? Hi Puck! If it has the rev B boards, etc., then hopefully what it is is a basic K2 plus the K2BCOMPKT kit and a couple of other things, which comprises what you need to bring it up to the level equivalent to serial no. 3000. For details, see http://www.elecraft.com/order_form_parts.htm#K2BCOMPKT This includes upgrade instructions. This includes the AF gain modification that you mentioned, and also a keying waveform improvement mod which was incorporated after serial no. 3000. Check with the seller (I think I have a suspicion about who it is!) and verify that it includes the stuff described in the link above. If so, you will probably not need to make any additonal modifications. -- 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] An K2 with 2M transceiver.
Thomas, I have thought about that too in the past, but I discarded it. There are mechanical problems to be solved - such as the heat sinking for the XV144. It might work if the XV144 were mounted upside down inside the K2 lid. My final opinion on it was that the transverter stacked under the K2 was the best solution. YMMV. 73, Don W3FPR Thomas Snare Knutsen wrote: Hello all. An idea I gor recently was to order another K2 and incorporate an 2M transverter in to it. Would this be possible, or am I crazy just thinking about it? I guess that the Auxbus would be avaible inside the transceiver so that the control should not be any problem. Does anyone know if the Elecraft 2M transverter would fit inside the K2? If so then it migth just be to find an way to incorporate it to the top cover and maybe screen it some? PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Zero beat hint and why 800 hz maximum?
David, The well-tempered scale is logarithmic, in a sense. Each semitone frequency is gotten from the just-lower one by multiplying by the twelfth root of 2. That way 12 semitone steps automatically make a perfect octave (factor of 2 in frequency). If you're gonna have twelve notes in a chromatic scale, and gonna have all the musical keys sound more or less the same (all equally bad according to the purists) then you pretty much are stuck with this irrational ratio. Hey, I just RTFM. On page 9 of the K3 Owners Manual C1 it says that the sidetone is adjustable from 300 to 1000 Hz. Is that really so? I can't find anything in the manual about increments. I haven't ordered a K3 yet, so can't check. Is the increment really 50 Hz, anyone? I'd be happy if the K3 sidetone/offset just went up to 880 instead of stopping at 800. Of course, 880 requires 10 Hz increments. I wonder if the problem here is memory register space. From 300 to 1000 with 50 Hz increments would be 15 different pitches, just shy of two bytes of memory space to record. The same range with 10 Hz increments, it would be 71 different pitches, requiring nine bytes of memory space to record. 73, Oliver Johns W6ODJ On 17 May 2008, at 4:36 AM, David Woolley (E.L) wrote: O. Johns wrote: Also, 740.0 is within a fraction of a Hertz of a correctly tuned (well-tempered tuning) F#. So there is good reason to have the increments of sidetone pitch be 10 Hz rather than 50 Hz. Might it not be better to use a logarithmic scale (e.g. equal tempered semi-tones) or a near logarithmic scale, with rational frequency ratios (natural (is this well tempered?) semitones). -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] An K2 with 2M transceiver.
Yes, the heatsinking of the powermodule migth be an problem, but mounting the transverter upside-down would cure this. Is the size of the transverter PCB so that it could fit inside the K2? The best would be If the speaker could be left alone, but I think that is impossible? I guess that I don't need to build the K2 Power amplifier and low pass filters, since it would be used as an 2M only transceiver. An K2 2M transceiver had been cool to go together with an basic K2, and since the dollar exchange rate is low at the moment, I can afford to order another K2. Best 73's de Thomas Don Wilhelm skrev: Thomas, I have thought about that too in the past, but I discarded it. There are mechanical problems to be solved - such as the heat sinking for the XV144. It might work if the XV144 were mounted upside down inside the K2 lid. My final opinion on it was that the transverter stacked under the K2 was the best solution. YMMV. 73, Don W3FPR Thomas Snare Knutsen wrote: Hello all. An idea I gor recently was to order another K2 and incorporate an 2M transverter in to it. Would this be possible, or am I crazy just thinking about it? I guess that the Auxbus would be avaible inside the transceiver so that the control should not be any problem. Does anyone know if the Elecraft 2M transverter would fit inside the K2? If so then it migth just be to find an way to incorporate it to the top cover and maybe screen it some? PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Dayton 2008
What you're seeing there is a new market driver that will produce a host of HF radios that require very little expertise to operate them for a much broader market than Ham radio. The driver is the Global Marine Distress Safety System (GMDSS) that is used on vessels of all sizes around the globe to protect life at sea. It's what replaced Sparky and his CW rig on large ships. There's a HUGE misconception that GMDSS is a satellite based system. Not so. On large vessels, satellite systems are used for routine communications when there's no emergency and satellites form a backup during emergencies assuming the equipment is working and needed. But satellites are a backup, *not* the backbone of the system. On large ships such as Sparky used to travel aboard, the GMDSS system depends upon HF (Shortwave) point-to-point SSB communications to contact other ships and shore stations just like Hams use to make contacts across the HF spectrum. Licensed GMDSS operators have to apply a knowledge of HF propagation in order to choose the best frequencies for the needed range under any conditions, just as experienced Ham operators do. Emergency calls are made using Digital Selective Calling (DSC) feature on these radios which alerts bridge crews throughout the area in the event of an emergency call. That has spawned a huge demand for rugged, easy-to-use HF SSB equipment such as ICOM is showing in the Youtube presentation. Hams will certainly see a lot of product fallout as manufacturers focused on that market provide a new generation of simple-to-use but efficient equipment for Ham band operations as well. Ron AC7AC -Original Message- http://www.youtube.com/watch?v=TFuy01zZR4g This japanese company has a new radio with a good looking amber/orange LCD display. KN1w ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Zero beat hint and why 800 hz maximum?
In any case (of upper limit) 10Hz step will be better for personal settings and for special weak signal tracking. Hope this will be on thi list for some future release of firmware. 73! Lexa, ok1dst K3/10 #727 O. Johns napsal(a): David, The well-tempered scale is logarithmic, in a sense. Each semitone frequency is gotten from the just-lower one by multiplying by the twelfth root of 2. That way 12 semitone steps automatically make a perfect octave (factor of 2 in frequency). If you're gonna have twelve notes in a chromatic scale, and gonna have all the musical keys sound more or less the same (all equally bad according to the purists) then you pretty much are stuck with this irrational ratio. Hey, I just RTFM. On page 9 of the K3 Owners Manual C1 it says that the sidetone is adjustable from 300 to 1000 Hz. Is that really so? I can't find anything in the manual about increments. I haven't ordered a K3 yet, so can't check. Is the increment really 50 Hz, anyone? I'd be happy if the K3 sidetone/offset just went up to 880 instead of stopping at 800. Of course, 880 requires 10 Hz increments. I wonder if the problem here is memory register space. From 300 to 1000 with 50 Hz increments would be 15 different pitches, just shy of two bytes of memory space to record. The same range with 10 Hz increments, it would be 71 different pitches, requiring nine bytes of memory space to record. 73, Oliver Johns W6ODJ On 17 May 2008, at 4:36 AM, David Woolley (E.L) wrote: O. Johns wrote: Also, 740.0 is within a fraction of a Hertz of a correctly tuned (well-tempered tuning) F#. So there is good reason to have the increments of sidetone pitch be 10 Hz rather than 50 Hz. Might it not be better to use a logarithmic scale (e.g. equal tempered semi-tones) or a near logarithmic scale, with rational frequency ratios (natural (is this well tempered?) semitones). -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KX1 build with 8030 mod
GM DE VE7TTJ I have purchased a KX1 kit along with the 8030 board and ATU kit. I want to do initial assembly incorporating the 8030 board (why put things in just to take them out?) I have built five other single-band rigs over the years so it's not a skill-testing question, just wondering if there are any gremlins I can't spot in blending the two sets of instructions. The ATU appears to be just a matter of pulling jumpers out of the female sockets to make way for the pins. It's the business of not installing L1 and L2 off the top and various Cap changes that makes me ask if it's better to make friends with desoldering wick instead. Comments? TU 73 VE7TTJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KX1 build with 8030 mod
Hi David, I buildt the KX1, tuner and the 30/80m module all at the same time without doing it in stages. I had absolutely no problems and everything works like a charm. I can't think of any particular things to watch out for. But is is TIGHT!!! Pay a lot of attention to getting the leads as short as possible plus bending components down flat as required. Best of luck, Are - LB3SA ex VE3TSZ VA3ARE David Dolsen wrote: GM DE VE7TTJ I have purchased a KX1 kit along with the 8030 board and ATU kit. I want to do initial assembly incorporating the 8030 board (why put things in just to take them out?) I have built five other single-band rigs over the years so it's not a skill-testing question, just wondering if there are any gremlins I can't spot in blending the two sets of instructions. The ATU appears to be just a matter of pulling jumpers out of the female sockets to make way for the pins. It's the business of not installing L1 and L2 off the top and various Cap changes that makes me ask if it's better to make friends with desoldering wick instead. Comments? TU 73 VE7TTJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://www.nabble.com/KX1-build-with-8030-mod-tp17296413p17296500.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] An K2 with 2M transceiver.
Thomas, Yes, you would have to sacrifice the speaker and the external speaker jack. I believe the XV144 board would fit, but nothing else. 73, Don W3FPR Thomas Snare Knutsen wrote: Yes, the heatsinking of the powermodule migth be an problem, but mounting the transverter upside-down would cure this. Is the size of the transverter PCB so that it could fit inside the K2? The best would be If the speaker could be left alone, but I think that is impossible? I guess that I don't need to build the K2 Power amplifier and low pass filters, since it would be used as an 2M only transceiver. An K2 2M transceiver had been cool to go together with an basic K2, and since the dollar exchange rate is low at the moment, I can afford to order another K2. Best 73's de Thomas ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Dayton Discovery
I have been monitoring this reflector for over 3 months as I have making up my mind about getting a K3. Arrived at this decision with an unusual point of view - I will save this for another post. I ordered a well equipped K3 on May 6 presumably ahead of the Dayton rush. Anyway I still have a lot of questions and had a chance to talk with Wayne this afternoon at the booth. I wondered about the requirement of using the keyer for standalone PSK or RTTY operation. He said the feature was there because he doesn't always like to turn on his computer to operate these modes. I agreed but noted that I can type faster than I can send code. So why not a more flexible way to connect just a keyboard. He then pointed out the RJ-45 connector on the bottom/front of the rig. He just sort of smiled about this, but after reading the mail for several months and reading the owners manual fairly thoroughly this was the first I heard of this feature (yet unused). Following his coy smile he just indicated that the keyboard was probably not a front burner issue. Does anybody on the list have more info on the RJ-45 that they would like to share? Ed, W9EJB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KX1 build with 8030 mod
Yes, it can be done - I do that all the time, but then I have done many many of these kits and know where to look when something goes wrong. Unfortunately, you likely do not have that background with the KX1. If you attempt to do everything together, there is no opportunity to give it the interim tests. The most 'tricky' part of the KXB3080 is the low pass filter, and that is where most builders run into problems (other than the tinning of T2's leads). For that reason I strongly recommend that you do *not* install the LPF for the KXB3080 until after you have tested it with the rest of the KXB3080 parts installed. Yes, you will have to wind and install L1 and L2 as instructed in the KX1 basic manual. One way you could proceed which does allow interim testing is as follows: 1) Build the KX1 through Assembly Part II the per the manual except that you would not install L7. C1, C27 nor C26, and L6 would be installed on the bottom of the board. 2) Install C1 and C26 from the KXB3080 option, then wind and install T2 per the KXB3080 manual. 3) The KX1 can now be aligned and tested for receive on 20 and 40 meters. Complete Alignment and Test part II. 4) Build the transmit portion of the KX1 using the KX1 manual Assembly Part III. 5) Test the KX1 transmit on 20 and 40 per the manual Alignment and test part III. Your KX1 has now been tested for both transmit and receive on 20 and 40 meters. 6) Start in the KXB3080 manual at page 8 (Part II) and complete the rest of the steps in that manual. This will test your KX1 on all 4 bands. 7) Go back to the KX1 manual and complete the final assembly. One extra note: The positioning of the KXB3080 LPF requires clearance for the tuner components. It is a good idea to build and install the tuner between steps 5 and 6 above. If you have great faith in your construction and troubleshooting ability, then feel free to just dive in and 'do it', but I would not suggest that unless you have already done one or two of these. 73, Don W3FPR David Dolsen wrote: GM DE VE7TTJ I have purchased a KX1 kit along with the 8030 board and ATU kit. I want to do initial assembly incorporating the 8030 board (why put things in just to take them out?) I have built five other single-band rigs over the years so it's not a skill-testing question, just wondering if there are any gremlins I can't spot in blending the two sets of instructions. The ATU appears to be just a matter of pulling jumpers out of the female sockets to make way for the pins. It's the business of not installing L1 and L2 off the top and various Cap changes that makes me ask if it's better to make friends with desoldering wick instead. Comments? PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Dayton Discovery
Ed, That connector is currently only used in the factory test. There was talk of a keyboard for it last year at Dayton, but I have heard nothing more. Your conversation with Wayne indicates that there is still hope. 73, Don W3FPR Ed Berbari wrote: I have been monitoring this reflector for over 3 months as I have making up my mind about getting a K3. Arrived at this decision with an unusual point of view - I will save this for another post. I ordered a well equipped K3 on May 6 presumably ahead of the Dayton rush. Anyway I still have a lot of questions and had a chance to talk with Wayne this afternoon at the booth. I wondered about the requirement of using the keyer for standalone PSK or RTTY operation. He said the feature was there because he doesn't always like to turn on his computer to operate these modes. I agreed but noted that I can type faster than I can send code. So why not a more flexible way to connect just a keyboard. He then pointed out the RJ-45 connector on the bottom/front of the rig. He just sort of smiled about this, but after reading the mail for several months and reading the owners manual fairly thoroughly this was the first I heard of this feature (yet unused). Following his coy smile he just indicated that the keyboard was probably not a front burner issue. Does anybody on the list have more info on the RJ-45 that they would like to share? Ed, W9EJB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Dayton Discovery
It has been talked about before, and I was under the impression it was off the table as for as future availability. Your discussion with Wayne indicates otherwise. The connector is used for testing and equipment interaction when they build the unit at the factory. Others can add more. I had my hopes up at one point that they were going to make that a keyboard port, and looking at this response from one of the field testers, it looks like it may still be on the 'list'. http://www.nabble.com/forum/ViewPost.jtp?post=14037060framed=y Dave Wilburn K4DGW K2/100 - S/N 5982 K3/100 - S/N 766 For those who fought for it, freedom has a flavor the protected will never know. Ed Berbari wrote: I have been monitoring this reflector for over 3 months as I have making up my mind about getting a K3. Arrived at this decision with an unusual point of view - I will save this for another post. I ordered a well equipped K3 on May 6 presumably ahead of the Dayton rush. Anyway I still have a lot of questions and had a chance to talk with Wayne this afternoon at the booth. I wondered about the requirement of using the keyer for standalone PSK or RTTY operation. He said the feature was there because he doesn't always like to turn on his computer to operate these modes. I agreed but noted that I can type faster than I can send code. So why not a more flexible way to connect just a keyboard. He then pointed out the RJ-45 connector on the bottom/front of the rig. He just sort of smiled about this, but after reading the mail for several months and reading the owners manual fairly thoroughly this was the first I heard of this feature (yet unused). Following his coy smile he just indicated that the keyboard was probably not a front burner issue. Does anybody on the list have more info on the RJ-45 that they would like to share? Ed, W9EJB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Dayton 2008
http://www.youtube.com/watch?v=TFuy01zZR4g WOW am I ever underwhelmed! Now wait a minute, it's got gaskets and appears to be bolted to a knobby tread or something. Very stylish. And although Ashley may be verbally challenged, quite some eye candy there. Points to Icom. The fair test would be to bolt K3 to an RV tire then dump a bucket of water on it, to find out which is more rigged and therefore better. Also need to find out how many cats lost life #9 in the development cycle. ;-) [Elecraft] RE: Dayton 2008 w6jd at comcast.net w6jd at comcast.net Sat May 17 15:12:28 EDT 2008 WOW am I ever underwhelmed! Doug W6JD -- Original message -- From: Lou Aguilar kn1w at mac84.com http://www.youtube.com/watch?v=TFuy01zZR4g This japanese company has a new radio with a good looking amber/orange LCD display. KN1w On May 17, 2008, at 12:22 PM, Dave Agsten wrote: I was wondering about any Dayton news also. I was guessing that Icom might be trying to unload PRO IIIs with the 7700 out now. I've sure seen lots of PRO IIIs up for sale. I got rid of mine just in time. Only American made rigs from now on. Elecraft, Flex, Alpha and Dentron. 73, Dave N8AG ___ Elecraft mailing list Post to: Elecraft at mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 at mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KX1 build with 8030 mod
I forgot one item in my list. Please add the following: 2a) Do the first 3 steps from page 5 of the KXB3080 manual (cut the PC trace and add the wire). Sorry - I have added it to the list below for anyone who wants a complete set of steps. 73, Don W3FPR Don Wilhelm wrote: Yes, it can be done - I do that all the time, but then I have done many many of these kits and know where to look when something goes wrong. Unfortunately, you likely do not have that background with the KX1. If you attempt to do everything together, there is no opportunity to give it the interim tests. The most 'tricky' part of the KXB3080 is the low pass filter, and that is where most builders run into problems (other than the tinning of T2's leads). For that reason I strongly recommend that you do *not* install the LPF for the KXB3080 until after you have tested it with the rest of the KXB3080 parts installed. Yes, you will have to wind and install L1 and L2 as instructed in the KX1 basic manual. One way you could proceed which does allow interim testing is as follows: 1) Build the KX1 through Assembly Part II the per the manual except that you would not install L7. C1, C27 nor C26, and L6 would be installed on the bottom of the board. 2) Install C1 and C26 from the KXB3080 option, then wind and install T2 per the KXB3080 manual. 2a) Do the first 3 steps from page 5 of the KXB3080 manual (cut the PC trace and add the wire). 3) The KX1 can now be aligned and tested for receive on 20 and 40 meters. Complete Alignment and Test part II. 4) Build the transmit portion of the KX1 using the KX1 manual Assembly Part III. 5) Test the KX1 transmit on 20 and 40 per the manual Alignment and test part III. Your KX1 has now been tested for both transmit and receive on 20 and 40 meters. 6) Start in the KXB3080 manual at page 8 (Part II) and complete the rest of the steps in that manual. This will test your KX1 on all 4 bands. 7) Go back to the KX1 manual and complete the final assembly. One extra note: The positioning of the KXB3080 LPF requires clearance for the tuner components. It is a good idea to build and install the tuner between steps 5 and 6 above. If you have great faith in your construction and troubleshooting ability, then feel free to just dive in and 'do it', but I would not suggest that unless you have already done one or two of these. 73, Don W3FPR David Dolsen wrote: GM DE VE7TTJ I have purchased a KX1 kit along with the 8030 board and ATU kit. I want to do initial assembly incorporating the 8030 board (why put things in just to take them out?) I have built five other single-band rigs over the years so it's not a skill-testing question, just wondering if there are any gremlins I can't spot in blending the two sets of instructions. The ATU appears to be just a matter of pulling jumpers out of the female sockets to make way for the pins. It's the business of not installing L1 and L2 off the top and various Cap changes that makes me ask if it's better to make friends with desoldering wick instead. Comments? PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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. Version: 8.0.100 / Virus Database: 269.23.16/1448 - Release Date: 5/16/2008 7:42 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Bandwidth SAV Not Working
It works on mine (using the current Beta firmware). However, I had to read the errata addition in the instructions 3 times to get it. SUGGESTION: I think it would be more useful to have it edit what NORM means so that one press of NORM would give me my preferred setting(s) of I/II. For example, on CW (I have the 500Hz filter) NORM is .50. I'd rather begin cruising the band with a wider setting, then narrow down when I choose. So I'd prefer to save my NORM setting as .90. I was hoping to do this with SAV, but to have to then remember to turn the knob to an ALT, it's more trouble than just adjusting the passband wider. Windy KM5Q K3 #764 On Sat, 17 May 2008 12:02:33 -0400, Roy Morris wrote: I would like to know if the SAV function has been temporarily disabled in firmware. This is the function that sets the bandwidth in memory and is accessed by pushing in the SHIFT knob for approx 3 seconds. These memories are set through --NOR-- selection. Presently I cannot SAV new bandwidth settings. Roy Morris W4WFB K3 #323 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] The K3 in comparison to the Big Guns
What held me back from completing my K3 order was the small front panel. I played with one in Aptos and decided that while I'd much prefer a larger panel with more space between the knobs, the K3 would work. I've most recently owned an Orion, an Omni VI+ and an Omni VII. I tend to like big. Hope the K3 arrives next month. Gary W7TEA IC-7800 height or even a tad more. I'm not a fan of making radios as small as possible. Simon Brown, HB9DRV -- View this message in context: http://www.nabble.com/The-K3-in-comprison-to-the-Big-Guns-tp17267266p17297786.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KatieGram
5/16/08: Received KatieGram 12/23/07: Placed order - 73, John, W0JFR -- View this message in context: http://www.nabble.com/KatieGram-tp17298086p17298086.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 BETA FIRMWARE RELEASE -- MCU rev 1.94
I now have version 1.96/1/73 and still having this problem. I have just finished building the XG1 test oscillator and have checked the S-meter calibration. 1uV shows S3 and 50uV shows S9, sometimes S9+5 with both 1.78/1.58 and the 1.96/173 firmware versions. So the calibration doesn't seem to be the problem. Right now the S-meter is pretty well useless on a band with real strong signals. Knut - AB2TC ab2tc wrote: Something has happened to the S-meter in this release. All of a sudden I have signals that are 60dB over S9. I am sure there is no more than 6-10dB between S9+10 and S9+60. This is also evident when backing off the RF gain. I have not made any CONFIG changes in order to use the new absolute S-meter setting. I have not recalibrated the S-meter. What is wrong here? Knut - AB2TC -- View this message in context: http://www.nabble.com/K3-BETA-FIRMWARE-RELEASEMCU-rev-1.94-tp17199166p17298108.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Trail Activation on Sunday
Hello, I plan on going out on the Appalachian Trail on 18 May 2008. I have to run into work to turn pumps off, then I am going to the AT. I hope to be on the air sometime between 11:00 and 12:00 UTC. I will start out on 7.030 +/- QRM. I will also try 30 and 20 meters a little later. I currently have 940 QSO's from the AT. I will be out until the thunderstorms hit or 16:00 UTC. I will be using my K1 and the BWV antenna. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] An K2 with 2M transceiver.
take a look at http://www.downeastmicrowave.com/PDF/144-28ECK.pdf i know a few stations that use one to drive microwave transverters with 144MHz. It puts out 100mW which is ample drive and heat generation is not an issue Dave ww2r Hello all. An idea I gor recently was to order another K2 and incorporate an 2M transverter in to it. Would this be possible, or am I crazy just thinking about it? I guess that the Auxbus would be avaible inside the transceiver so that the control should not be any problem. Does anyone know if the Elecraft 2M transverter would fit inside the K2? If so then it migth just be to find an way to incorporate it to the top cover and maybe screen it some? Best 73's de Thomas LA3PNA -- View this message in context: http://www.nabble.com/An-K2-with-2M-transceiver.-tp17295444p17298485.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: Re: [Elecraft] Re: Zero beat hint and why 800hz maximum?
David Woolley (E.L) wrote: div class=moz-text-flowed style=font-family: -moz-fixedO. Johns wrote: Also, 740.0 is within a fraction of a Hertz of a correctly tuned (well-tempered tuning) F#. So there is good reason to have the increments of sidetone pitch be 10 Hz rather than 50 Hz. Might it not be better to use a logarithmic scale (e.g. equal tempered semi-tones) or a near logarithmic scale, with rational frequency ratios (natural (is this well tempered?) semitones). Only if you're running CW on a clavier. 73, Fred K6DGW - Northern California Contest Club - CU in the 2008 Cal QSO Party 4-5 Oct 08 - www.cqp.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] hi-current problems k2/100
I'm having trouble with hi-current shutdowns at higher power settings on all bands below 20 meters (30,40, and 80) . 20 meters and above work fine. I bought and built a W1 wattmeter which when connected to the notebook is really neat. output watts shown on W1 are a bit lower than shown on k2 screen, but seem close enough (6.1 on k2 for 5.9 on W1). I've checked the 1N5711's and they are still diodes. where else should I be looking? john ferguson AI4TO **Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. (http://food.aol.com/dinner-tonight?NCID=aolfod000301) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Announcement
Good Evening, For those of you who have not wilted in the heat nor gone to Dayton there will be a couple nets tomorrow. Today it only got to 91 here but in the valley it was much warmer. The breeze has kicked up so it feels better but the fire danger is skyrocketing. My poor daffodils were drooping so I gave them some water and all of the other plants in the yard and on the deck. It felt good to spray myself too! Two weeks ago it was snowing now it is the depths of summer. The forecast mentions a respite in my future. Rains and decreasing temperatures. Only another day or two of this and it will get back to 'normal'. On a better note: twenty meters was fairly quiet and capable of maintaining a few hour long contacts this week. Forty was also good for me. I tried 30 and 80 and they too elicited a few nice chat sessions. Even though the bands are not great, by any means, they are good enough; that is all that counts. Looked at SpaceWeather a few minutes ago and saw there are a few sunspots. No danger of any storms but it is nice to see something on the recently blank sun. Maybe there will be more activity soon. I know there will be a few contests in the future which will liven up the ionosphere. Maybe if we make enough noise the ionosphere will be activated from our RF. Never can tell; seems like during a major contest the bands get a little better. Not proposing a hypothesis, mind you, just back of the envelope thinking. Please join us tomorrow evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0200z (Sunday 7 PM PDT) 7045 kHz Stay cool, Kevin. KD5ONS ecn.visionseer.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] RFTB Sunday Night
This Sunday night is the night for May's Run For The Bacon. If you're returning from Dayton; I hope you'll still have enough energy to join us! As always, the details for this funfilled 2 hour QRP Sprint can be found at: http://www.gentzow.com/fpqrp/fpqrprun.php 73 de Larry W2LJ FP# 612 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] RFTB Sunday Night
I just reread the rules. Looks like FP activity will be on 7044 kHz. Hopefully that means 7045 kHz will be free to use for ECN. Am I reading this correctly? Kevin. KD5ONS -Original Message- From: Larry Makoski W2LJ [EMAIL PROTECTED] Sent: May 17, 2008 11:29 PM To: elecraft@mailman.qth.net Subject: [Elecraft] RFTB Sunday Night This Sunday night is the night for May's Run For The Bacon. If you're returning from Dayton; I hope you'll still have enough energy to join us! As always, the details for this funfilled 2 hour QRP Sprint can be found at: http://www.gentzow.com/fpqrp/fpqrprun.php 73 de Larry W2LJ FP# 612 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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
