Re: [Elecraft] Linear operation with K2?
Hank, I fail to see why he would have to worry about the Ameritron amps, since they (Al-1200, AL-1500, AL-80B at least) only have 12 VDC on the relay jack, and require sinking 100ma max. The specs listed for the K2 say 1A and 200V. Am I missing something?? Thanks, Don, WB5HAK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 or KX1? Looking mainly at receiver
Strange! Before the KX1 came out, the K1 was generally acknowledged as the best multi-band backpacking rig available. It is no less suitable for that task today. There's nothing strange about a product evolving to improve in some ways while the old one remains suitable to task. Those two facts can co-exist quite happily. Understanding your needs and the tradeoffs between the rigs is the key. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 or KX1? Looking mainly at receiver
Mike Morrow wrote: ... the KX1 wins handsdown for backpacking... Strange! Before the KX1 came out, the K1 was generally acknowledged as the best multi-band backpacking rig available. It is no less suitable for that task today. When you go out and spend $200.00 on a 1 person tent that is 1lb lighter than your previous tent, and another $180 on a sleeping bag that is 1/2lb lighter, and continue to do so so your pack drops from 35lbs to 30lbs the KX1 is now a much better backpacking rig. Not only is the radio a little more than 1/2lb lighter, the batteries to power it for the same timeframe are lighter as well. Now, if your saying the KX1 will not work, then it's just dead weight when packed and that would be a different story. If one is happy with the limited number of bands covered by the KX1, and recognizes that there is absolutely **no** physical way that KX1 receiver RF performance can match that of a properly constructed K1 in any area other than VFO stability, and that the ATU in the KX1 can't come close to the matching range of the K1's KAT1, then the KX1 is a great choice. On the other hand, if RF performance *on the ham CW bands* is important, the K1 stands as the best of the two. When I'm out in the boonies, I want the best possible RF performance on the ham CW bands that I can get in a small package. The K1 hasn't been shaken from that position. I don't care that I can't use it for shortwave broadcasts or to copy the ham phone bands. I've got a Sony portable that'll do that quite adequately, with essential AM/FM coverage to boot. So whether the KX1 wins handsdown depends on the criteria applied. It doesn't win for me, handsdown or otherwise. For real backpacking it seems worth the comprimise. Jeremy KB8LFA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] ARCBS Weekend Activator List Update!
Hello all, We're up to twenty covered bridge activators for the ARCBS Weekend Event. We need more ops to activate covered bridges for this event on September 3-4, 2005. If others can spare a day or an hour, please sign up to activate a covered bridge near you. Remember you don't have to be a member of the ARCBS to activate a bridge. Click on the ARCBS Covered Bridge Weekend Event Web Page for more details. All you activators, please look at this page for new information. Any takers over in G-Land to activate that covered bridge? How about other countries? http://www.arcbs.org/ARCBScbWeekend.html Canada: VE1REC, VE2LHP CA: WA6BFH, KG6HAF GA: N2MC, K4AQ, NM4B, KC4DGX KS: KC0SYS NJ: W2WJO NY: N7UN/2 OH: KI8I PA: N3YMX, K3YTR, KC4OCE, WA3WSJ,WB3AAL, N3GNW IN: N9LAH TN: KF4YUZ 72/73, Ed, WA3WSJ ARCBS Founder ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 or KX1? Backpacking Analysis
... the KX1 wins handsdown for backpacking... Strange! Before the KX1 came out, the K1 was generally acknowledged as the best multi-band backpacking rig available. It is no less suitable for that task today. I think you misunderstand. Let me look at your comments one at a time. If one is happy with the limited number of bands covered by the KX1 The KX1 covers 20, 30 and 40 meters. When one is talking about backpacking, they are spending a majority of their time hiking. Generally, and this will vary by person, a backpacker will hike during the day and set up camp during the late afternoon or early evening. I don't think that having the full spectrum of bands is going to add significantly to the hikers (aka ham's) enjoyment of his evening's operating, While it would certainly be nice to have a rig that was equipped with 10 through 80, I would suppose that only 1 or 2 bands would actually be used before it's time to hit the sack. and recognizes that there is absolutely **no** physical way that KX1 receiver RF performance can match that of a properly constructed K1 in any area other than VFO stability, There are others here on this list that would say the difference is very minimal. Since I don't own a K1, I can't comment. and that the ATU in the KX1 can't come close to the matching range of the K1's KAT1 Again, remember that the hiker is backpacking, and as such is carrying a small radio and minimal antenna. If I were to hike today, I would take the KX1 with 25' of antenna wire and 16' of counterpoise wire. Since the wire used would be very small, it would be light and compact. The KX1 easily matches that wire, once strung in a tree, to a perfect 1:1 on all 3 of its bands, which is all that is needed. While it IS true the K1's ATU may be better at matching systems under more difficult situations, that capability is not needed when out doors with a 25' of wire. On the other hand, if RF performance *on the ham CW bands* is important, the K1 stands as the best of the two. I'm not sure how you justify that statement, but oh well. I don't care that I can't use it for shortwave broadcasts or to copy the ham phone bands. I've got a Sony portable that'll do that quite adequately, with essential AM/FM coverage to boot. Are you needing to carry that too? That is an additional weight and more hardware to pack that is not required with the KX1. Specs that are important to me: The KX1 is 1.4 x 5.8 x 3.0 and weighs 9 oz (excluding options) It has a current drain of 32 mA on receive and 300-700 mA on transmit. The K1 is 2.4 x 5.2 x 7.1 and weighs 1.4 lbs (excluding options) It has a current drain of 55 mA on receive and 700-900 mA on transmit. The KX1 runs on 6 AA batteries, and will output 1.5 to 2.0 watts. The K1 runs on 8 AA batteries (with optional KBT1 installed) and will output 5 watts. The KX1 comes with a small keyer that attaches directly to the side of the KX1. The K1 requires a separate keyer. Don't get me wrong. I am not trying to tell you that the K1 is in anyway a lesser radio than the KX1. In fact, I own a KX1 and I am seriously considering purchasing a K1. There ARE some situations where the K1 just would be a better fit than the KX1. What I am talking about here is the practicality taking a ham radio hiking into the mountains. If I could carry it and the necessary hardware, I would love to hike into the woods with a K2 and a nice Buddipole. But being practical, I see the sense in having the KX1 as my radio of choice for backpacking, and thus the original statement... the KX1 wins handsdown for backpacking... Matt - K7OE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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, resistance check Q7
Hi gang, My reading for Q7 base is too low, but not shorted. I get 760 ohm... But I should get 2.5 to 3 k ohm. I have worked my way through the schematics. At R62 I get zero one one side and 870 on the other. At R60 I get 870 and 760. The low resistance must be somwhere between R60 and Q7 base. I have removed all passive components that connects to ground: C137, C129, C130, C138. No change. I don't think any of the T's are shorted, cos I dont see zero ohms. Please give me some hints if you can, on how I can proceed. Tnx SM0RVV ./Erik K1 #1978 K2 #4904 (at stage III) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 or KX1? Backpacking Analysis
The KX1 is better for Pedestrian Mobile operation. Why not operate while you hike ? Paul w0rw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 or KX1? Backpacking Analysis -- comment
I can only say that 80 percent of my contacts are on 20 or 40. So the number of bands covered by K1 or KX1 would not be an issue. The rig I use as all the bands available but I have favorites and I am sure it would be similar with the hikers too?? -- __ ___/ Chuck \_ | | | www.aa8vs.org/aa8vs | The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails. -- William Arthur Ward ... the KX1 wins handsdown for backpacking... Strange! Before the KX1 came out, the K1 was generally acknowledged as the best multi-band backpacking rig available. It is no less suitable for that task today. I think you misunderstand. Let me look at your comments one at a time. If one is happy with the limited number of bands covered by the KX1 The KX1 covers 20, 30 and 40 meters. When one is talking about backpacking, they are spending a majority of their time hiking. Generally, and this will vary by person, a backpacker will hike during the day and set up camp during the late afternoon or early evening. I don't think that having the full spectrum of bands is going to add significantly to the hikers (aka ham's) enjoyment of his evening's operating, While it would certainly be nice to have a rig that was equipped with 10 through 80, I would suppose that only 1 or 2 bands would actually be used before it's time to hit the sack. and recognizes that there is absolutely **no** physical way that KX1 receiver RF performance can match that of a properly constructed K1 in any area other than VFO stability, There are others here on this list that would say the difference is very minimal. Since I don't own a K1, I can't comment. and that the ATU in the KX1 can't come close to the matching range of the K1's KAT1 Again, remember that the hiker is backpacking, and as such is carrying a small radio and minimal antenna. If I were to hike today, I would take the KX1 with 25' of antenna wire and 16' of counterpoise wire. Since the wire used would be very small, it would be light and compact. The KX1 easily matches that wire, once strung in a tree, to a perfect 1:1 on all 3 of its bands, which is all that is needed. While it IS true the K1's ATU may be better at matching systems under more difficult situations, that capability is not needed when out doors with a 25' of wire. On the other hand, if RF performance *on the ham CW bands* is important, the K1 stands as the best of the two. I'm not sure how you justify that statement, but oh well. I don't care that I can't use it for shortwave broadcasts or to copy the ham phone bands. I've got a Sony portable that'll do that quite adequately, with essential AM/FM coverage to boot. Are you needing to carry that too? That is an additional weight and more hardware to pack that is not required with the KX1. Specs that are important to me: The KX1 is 1.4 x 5.8 x 3.0 and weighs 9 oz (excluding options) It has a current drain of 32 mA on receive and 300-700 mA on transmit. The K1 is 2.4 x 5.2 x 7.1 and weighs 1.4 lbs (excluding options) It has a current drain of 55 mA on receive and 700-900 mA on transmit. The KX1 runs on 6 AA batteries, and will output 1.5 to 2.0 watts. The K1 runs on 8 AA batteries (with optional KBT1 installed) and will output 5 watts. The KX1 comes with a small keyer that attaches directly to the side of the KX1. The K1 requires a separate keyer. Don't get me wrong. I am not trying to tell you that the K1 is in anyway a lesser radio than the KX1. In fact, I own a KX1 and I am seriously considering purchasing a K1. There ARE some situations where the K1 just would be a better fit than the KX1. What I am talking about here is the practicality taking a ham radio hiking into the mountains. If I could carry it and the necessary hardware, I would love to hike into the woods with a K2 and a nice Buddipole. But being practical, I see the sense in having the KX1 as my radio of choice for backpacking, and thus the original statement... the KX1 wins handsdown for backpacking... Matt - K7OE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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
Re: [Elecraft] ARCBS Weekend Activator List Update!
In message [EMAIL PROTECTED], Edward R. Breneiser [EMAIL PROTECTED] writes Any takers over in G-Land to activate that covered bridge? How about other countries? What is a covered bridge? Trev G3ZYY -- Trevor Day UKSMG #217 www.uksmg.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
Re: [Elecraft] K2, resistance check Q7
Hi again and welcome to the series Get to know your DMM. This week well learn how to use the setting Auto and Manual. :-) I found out just now that my DMM shows different readings in auto and in Manual. If I set the DMM to Manual and kohm i get the correct reading of 2.7 kohm. But if I set it at auto I get 760 ohm... It must be different values of voltage the DMM uses to measure in auto and manual. OK, case closed. I will proceed with alignement in step III Sorry for the noice on the list SM0RVV ./Erik Erik Linder wrote: Hi gang, My reading for Q7 base is too low, but not shorted. I get 760 ohm... But I should get 2.5 to 3 k ohm. I have worked my way through the schematics. At R62 I get zero one one side and 870 on the other. At R60 I get 870 and 760. The low resistance must be somwhere between R60 and Q7 base. I have removed all passive components that connects to ground: C137, C129, C130, C138. No change. I don't think any of the T's are shorted, cos I dont see zero ohms. Please give me some hints if you can, on how I can proceed. Tnx SM0RVV ./Erik K1 #1978 K2 #4904 (at stage III) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] ARCBS Weekend Activator List Update!
Hi, Trevor. Since, a picture is worth a thousand words, please see this URL: http://www.lookingforadventure.com/coveredbridge.htm Trevor Day wrote: In message [EMAIL PROTECTED], Edward R. Breneiser [EMAIL PROTECTED] writes Any takers over in G-Land to activate that covered bridge? How about other countries? What is a covered bridge? Trev G3ZYY -- Trevor Day UKSMG #217 www.uksmg.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] Backpack Antenna Question
excerpt_from_KX1_vs_K1_thread If I were to hike today, I would take the KX1 with 25' of antenna wire and 16' of counterpoise wire. /excerpt Why 24' of antenna and only 16' of radial? 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] Backpack Antenna Question
I would guess it's because that's what the KX1 manual suggested at the time I built the KX1, and it has worked fine for me ever since. That's probably the only reason. Matt On Tue, 02 Aug 2005 09:41:04 -0700 Fred Jensen [EMAIL PROTECTED] wrote: excerpt_from_KX1_vs_K1_thread If I were to hike today, I would take the KX1 with 25' of antenna wire and 16' of counterpoise wire. /excerpt Why 24' of antenna and only 16' of radial? 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
[Elecraft] KX-1 TX power and rcvr questions
Hello List: While building my KX-1 and installing the 30M board, I found the following: Receiver S/N is poorer on 30M. I'd say .4 uV for a discernable signal while 40 and 20M only require about .25uV for a discernable signal. Also, without any antenna or service monitor connected, noise on 30M is noticeably louder than on 40 or 20M. On transmit, and with the R11 and R30 power mods added (and R30 cranked down a little to keep power under 4 Watts) power on 40 and 30M Is 4 watts, while on 20M it is only 2.7 watts. This is not in spec. At 9.0V, 40M and 30M are 1.4 watts; 20M is 0.82 watts- also not in spec. The low 20M RF power problem existed before installing the 30M unit. I'd appreciate comments from anyone who has had these problems in their KX-1. Footnotes: IRF-1200S service monitor Non-reactve load and numeric VPP display o-scope I have checked T1, L1, L2, relays, DDS components, etc I'm working with Elecraft on this. Thanks, Jay W6CJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] ARCBS Weekend Activator List Update!
Thanks Rick (and Ron via email) for the pictures. I suppose I guessed they would be something along those lines. They are certainly not common in the UK; I don't recall ever seeing any and I have travelled a fair bit. There may be the odd one out there waiting for me to discover it though :-) Along similar lines we have Summits on the Air (SOTA) over here with plenty of backpacking type activity at week-ends. Thanks again both, Trev G3ZYY In message [EMAIL PROTECTED], Rick Hampton [EMAIL PROTECTED] writes Hi, Trevor. Since, a picture is worth a thousand words, please see this URL: http://www.lookingforadventure.com/coveredbridge.htm Trevor Day wrote: In message [EMAIL PROTECTED], Edward R. Breneiser [EMAIL PROTECTED] writes Any takers over in G-Land to activate that covered bridge? How about other countries? What is a covered bridge? Trev G3ZYY -- Trevor Day UKSMG #217 www.uksmg.org -- Trevor Day UKSMG #217 www.uksmg.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] K2/100 Portable Battery Pak Question
Does anybody have any experience using the HFProjects Power-Pak with a K2/100? It is a nice 12v 7ah gel cell with built in trickle charger (www.hfprojects.com). I wouldn't expect it to power the K2/100 at full 100 Watts, but I'm thinking it would be a good way to have a nice power supply for camping or traveling and run the k2/100 at 35-50 watts. Please let me know if anybody has used this successfully. Jonathan Gottlieb WA3WDK k2/100 #4856 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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, resistance check Q7
A combination of guessing and logical thinking. In auto I get wrong reading. In manual 10 k I get 2.7 k. In manual 1 M I get 3 k So it's 2 against 1... And the two values is what to expect, the odd value is - odd... I'll promise to post a message when the smoke has dissappeared efter I have connected the power. ;-) ./Erik [EMAIL PROTECTED] wrote: How do you know which reading to believe? K3UJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
FW: [Elecraft] ARCBS Weekend Activator List Update!
It's to keep the horses from being scared of the sudden drop off on the sides. Dan / WG4S / K2 #2456 ps: Do you guys in G land have autocars yet? snip What is a covered bridge? /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] Heat related issue
WB7FJG and N4SL activated their club call, W7MRG for the Bumblebee event as BB #46. We hiked to a local bird sanctuary in Snohomish, WA and shot up an 88' CF doublet sloper with the two ends at 80' and 60'. Only worked 20m as the other bands were dead up here. We used a K2 and 5A-hr battery with the internal autotuner which, as always, worked freakin' GREAT! However, it was *hot* outside and the sun was hitting the K2's case until you could NOT place your hand on it - very hot! After an hour or so, everytime I sent anything using the built-in memory keyer, there was a loud CLICK in the headset/speaker about 250mS after the last character was sent. This didn't occur when using the internal keyer and a paddle, it did occur even when in TEST mode, transmitting no power output. T-R was set to 0.01. Also, when tuning, as the frequency was changed from 140xx.30 to 140xx.31 (in either direction) there was a loud click. Right on 14.060 there was very loud key-down signal with some warbling. When I got home, the radio once again worked perfectly as it always has before, so I'm certain this was an excessive heat issue (I've always used a tent or shade before). So, anyone else ever have this, is there some known thing I can change to 'fix' this 'problem'? It's SN4272 with all mods I know about in place (it's the K2/100 when in the main shack, the QRP with the ATU when a field unit). Just curious. 72, Steve N4SL __ 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] Heat related issue
Yeah Steve, there is a fix, it is called shading the Radio! You probably exceeded the temperature limits of inside components. I had a tuner that kept getting out of adjustment at Field Day one year. Finally, I realized that the sun angle had changed to bear directly on the dark case and the inductor was heating up and changing value. Put some shade over the rig by moving it on table and everything went back to normal. GL, Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] ARCBS Weekend Activator List Update!
Hello all, We're up to twenty covered bridge activators for the ARCBS Weekend Event. We need more ops to activate covered bridges for this event on September 3-4, 2005. [snip] Any takers over in G-Land to activate that covered bridge? What covered bridge? The Chunnel? :-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Linear operation with K2?
Don and Diana Cunningham wrote: Hank, I fail to see why he would have to worry about the Ameritron amps, since they (Al-1200, AL-1500, AL-80B at least) only have 12 VDC on the relay jack, and require sinking 100ma max. The specs listed for the K2 say 1A and 200V. Am I missing something?? Thanks, Don, WB5HAK The K2/100 can handle the voltage/current requirements . But he relay in the Ameritron amps is not the fastest relay to pick -- it takes at least 50ms or more. During that time the K2/100 sees a high SWR during this time and shuts down the amp, so you start sending and the amp has no output - and you never know if you aren't watching the meters. K6XX has a relay accelerator circuit on his web site that works great in speeding up the relay - my AL-1200 with this circuit built on a terminal strip has not failed since I put it in place. Doesn't happen with other radios and the Ameritron amps Just the K2/100's. 73HankK8DD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Heat related issue
I didn't notice any performance related issues (radiowise, operator is another story) during Field Day due to heat, but I did at one point touch the top cover of the K2 and felt that it was quite hot with direct exposure to sunlight as well. My solution was to actually turn on the tabletop fan to cool the radio case. I'd been trying to tough it out and not use the fan, but when it came to the radio I figured whatever extra comforts could be afforded were acceptable! Fortunately the fan was running off 110V AC so it didn't give extra drain on the battery. Next year I have prepared 4 solar cells (5 to 6W each) that can charge the battery or be used to run a DC fan if necessary! Chances are it'll be raining all weekend instead. 73, Mark, NK8Q From: Stuart Rohre [EMAIL PROTECTED] Date: Tue Aug 02 14:12:43 CDT 2005 To: [EMAIL PROTECTED], elecraft@mailman.qth.net Subject: Re: [Elecraft] Heat related issue Yeah Steve, there is a fix, it is called shading the Radio! You probably exceeded the temperature limits of inside components. I had a tuner that kept getting out of adjustment at Field Day one year. Finally, I realized that the sun angle had changed to bear directly on the dark case and the inductor was heating up and changing value. Put some shade over the rig by moving it on table and everything went back to normal. GL, Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: Re: [Elecraft] Heat related issue
The use of a fan does not violate any Field Day rules. No electronics save Mil Spec is really built to sit out in the sun. Provide shade at least, and forced air cooling to give long life to your finals and components. Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: Re: Re: [Elecraft] Heat related issue
That is correct. As we read the rules, only the radio equipment needed to use the emergency power which in our case was battery. We did run a generator to operate one A/C unit in a black trailer and only because the long run of cable from up at the house had too much voltage drop causing the logging compuker to suffer during brownout conditions. Other amenities were operated off commercial mains, although they could have been run off a generator as well. Amenities mostly included the fan beer cooler. From: Stuart Rohre [EMAIL PROTECTED] Date: Tue Aug 02 14:51:36 CDT 2005 To: [EMAIL PROTECTED], [EMAIL PROTECTED], elecraft@mailman.qth.net Subject: Re: Re: [Elecraft] Heat related issue The use of a fan does not violate any Field Day rules. No electronics save Mil Spec is really built to sit out in the sun. Provide shade at least, and forced air cooling to give long life to your finals and components. Stuart K5KVH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: KX1
I am selling my KX1, SN 539, and building another K1. Meets all specs and in like new condition. Incl. 30 M, Int ATU and plug-in paddles. Current cost $466. I am asking $350 USD incl. shipping to CONUS. Rick Dettinger - K7MW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 related issue
I put a towel over my K2 when I noticed it getting hot in the sun, but before it began to behave badly. No problems. Thanks for W7MRG on 20. Fred K6DGW Auburn CA CM98lw BB# 142 Steve L. wrote: WB7FJG and N4SL activated their club call, W7MRG for the Bumblebee event as BB #46. deleted stuff However, it was *hot* outside and the sun was hitting the K2's case until you could NOT place your hand on it - very hot! After an hour or so, everytime I sent anything using the built-in memory keyer, there was a loud CLICK in the headset/speaker about 250mS after the last character was sent. This didn't occur when using the internal keyer and a paddle, it did occur even when in TEST mode, transmitting no power output. T-R was set to 0.01. Also, when tuning, as the frequency was changed from 140xx.30 to 140xx.31 (in either direction) there was a loud click. Right on 14.060 there was very loud key-down signal with some warbling. deleted 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
[Elecraft] KAF2 clock cell life
I forget when I got my KAF2, but it was pretty much right when they came out. My clock seesm to lose its marbles a lot these days. I figure it might be the lithium cell. Wonder how long they are supposed to last for in this application? I have a picoammeter here at work. Maybe I could hook it up and find out what the thing really draws when off. Until I get a chance to do that (ha! next year, maybe) maybe some other long-time K2/KAF2 owner has experienced the clock issue. Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] 88' CF doublet
Thanks for the input on the heat, I agree it just overheated due to abuse (sometimes I do that, too). I got some private requests for information about my field-use 88' CF doublet, so here's how I do it, designed for lightest weight: Wire for antenna and feedline: 26 AWG 19-strand copperweld, purchased from Davis RF. This wire is very lightweight yet extremely strong and flexible with an excellent insulation. I highly recommend it. Bottom of this page, their PN POLYS-26 http://www.davisrf.com/ham1/flexweve.htm (I'm not affiliated with them in any way, all that usual stuff) I used 1/4 black irrigation tubing for the spreaders. Drilled a 5/64 hole with 1.5 spacing, then threaded them onto the wire. No glue or other attachment required. Yes, this takes some time but the finished product is GREAT! I spaced the spreaders about every 10 on the line. For the center insulator, I cut a scrap piece of 1/4 thick Lexan, drilled holes at 1.5 spacing and soldered ring lugs onto the feedline and antenna wires. Using SS wingnut HW, this assembled/disassembles easily in the field into three pieces, making it easier to store and also to install in the field. I fill the ring lugs crimp area with hot melt glue for strain relief (sounds dumb, works great). End insulators are small pieces of 1/2 PVC cut and drilled. Simple, cheap. I use a cheap-o plastic extension cord spooler to spool the feedline and antenna wire onto, making unspooling a tangle-free event. Think Christmas tree string lights here, same thing. 72, Steve N4SL K2/100 #4272 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX-1 mods
Can someone explain the R11 and R30 mods to me? David, k3tue . On transmit, and with the R11 and R30 power mods added (and R30 cranked down a little to keep power under 4 Watts) power on 40 and 30M Is 4 watts, while on 20M it is only 2.7 watts. This is not in spec. At 9.0V, 40M and 30M are 1.4 watts; 20M is 0.82 watts- also not in spec. The low 20M RF power problem existed before installing the 30M unit. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Database application
I am trying to locate a software application that will record all of the user defined settings, view them and if necessary restore the settings in the event that you have to reset everything to a default. I seem to recall a previous post but I can't find it in the archives. 73 KI4DGH Chuck G. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] WA3WSJ: Delaware Lighthouse Tour
Hello all, I will be activating the Overfalls Lightship and two other lighthouses while I'm in Delaware. My expedition will start tomorrow. I hope to work many while camping at Cape Henlopen State Park in Delaware. Check out my Overfalls Lightship Page. http://www.wa3wsj.com/files/Overfalls.html 72/73, Ed, WA3WSJ ARLHS # 983 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] FS: KX1
The KX1 has been sold. Thanks - Rick - K7MW - Original Message - From: Rick Dettinger [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, August 02, 2005 1:18 PM Subject: [Elecraft] FS: KX1 I am selling my KX1, SN 539, and building another K1. Meets all specs and in like new condition. Incl. 30 M, Int ATU and plug-in paddles. Current cost $466. I am asking $350 USD incl. shipping to CONUS. Rick Dettinger - K7MW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] WA3WSJ: Delaware Lighthouse Tour - CW Mode
Hi all, Look for me on cw on the top of every hour during the days and evenings. I will hang around .035 on most bands. Hope to work many on cw too! My plan is to operate from 10am -12pm then break for lunch. Start up again around 2pm to 4pm. Break for dinner and start up again around 6pm to 8pm. I plan to activate the following: Overfalls Lightship : ARLHS USA-573 Harbor of Refuge: ARLHS USA-366 Del.Inner Breakwater: ARLHS USA-222 8/3 to 8/7 72/73, Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] K2/100 Portable Battery Pak Question
Jonathan: There would be no problem using the 7ah gel cell if you ran the K2 at 5 Watts. 50 Watts is something else. First of all, the 7ah rating is based on a 20 hour discharge. This means you will get 7ah out of the battery if you draw 350 ma for 20 hours. But you won't be able to draw 7 amps for 1 hour. With the K2, you'd get about 24 hours of receive-only with that battery. And I suspect the K2 running 50 Watts will draw a lot more than 7 amps. At 50 Watts, I'm guessing you might be able to do some heavy operating for 2-3 hours before the battery bites the dust. My suggestion would be to stick to 5 Watts, unless a desired contact can't hear you, then crank it up as needed. Good luck and 73's, John AA0VE Gottlieb, Jonathan wrote: Does anybody have any experience using the HFProjects Power-Pak with a K2/100? It is a nice 12v 7ah gel cell with built in trickle charger (www.hfprojects.com). I wouldn't expect it to power the K2/100 at full 100 Watts, but I'm thinking it would be a good way to have a nice power supply for camping or traveling and run the k2/100 at 35-50 watts. Please let me know if anybody has used this successfully. Jonathan Gottlieb WA3WDK k2/100 #4856 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
