[QRP-L] What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More.
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[QRP-L] What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More.
 
Administrator
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If you're planning to go to Dayton this weekend, May 18-21, please visit
us at our expanded booth (booth numbers #196, 197 and 198). Wayne (N6KR), Eric (WA6HHQ), Lyle (KK7P), Brian (W6FVI - Elecraft Support) and many others will be at the booth to demo our products and to chat with you. Map at: http://www.elecraft.com//hamfests/Elecraft_Dayton_loc.pdf DAYTON SPECIALS: Stay tuned to http://www.elecraft.com/news.htm . We will announce our Dayton Specials Thursday morning, the 18th there and on the Elecraft list. KX1 Live Building Demo: Don Wilhelm, W3FPR, will be at our booth with a live KX1 building demo, starting at 10 AM each day for 4-5 hours. Come see how Don builds his KX1 and yes, you will find a lot of great Elecraft owners and prospective owners to chat with. T-Shirts: There will also be a limited number of our newly-designed Elecraft T-shirts for sale! Come early to get your Dayton fashion statement! We'll have lots of K1s, K2s, KX1s, accessories etc and all of our newest products available for sale, including: * KXB3080 - Adds 80 meters to the KX1 ultra-portable transceiver * XV432 - The fourth in our series of high-performance transverters * XG2 - 3-band version of our XG1 receiver test oscillator * 2T-Gen - Two-tone test oscillator for IMD measurements on SSB transmitters * KXPD1-K2 - Allows you to use our compact, 1-oz. KXPD1 paddle with the K2 In addition, we'll be previewing one of our new solid-state auto-tune linear amplifiers (KPA1500). Pictures of the above can be seen at: http://www.elecraft.com/news.htm 73, Eric WA6HHQ and Wayne, N6KR -- _..._ ______________________________________________________________ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] |
Re: What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More.
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> In addition, we'll be previewing one of our new solid-state auto-tune > linear amplifiers (KPA1500). > > Pictures of the above can be seen at: http://www.elecraft.com/news.htm > Nice to see the amplifier. Looks great! One little problem. Either the caption on the photo page (and the reference above) is wrong, or the amp has been mislabeled (it shows KPA800). Is it reasonable to assume that the two amps look nearly identical? I hope you sell a lot of them. Gus Hansen KB0YH _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More.
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Administrator
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Hi Augie,
The KPA800 and 1500 both use the same desk top size enclosure. (I only had a picture of the 800 for the news release.) We move the power supply out of the 800 case and add a 2nd set of RF decks for the 1500. And we also change the front panel labels. 73, Eric Augie (Gus) Hansen wrote: > > Nice to see the amplifier. Looks great! > > One little problem. Either the caption on the photo page (and the reference > above) is wrong, or the amp has been mislabeled (it shows KPA800). Is it > reasonable to assume that the two amps look nearly identical? > > I hope you sell a lot of them. > > Gus Hansen > KB0YH > Elecraft mailing list Post to: [hidden email] 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 |
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Eric,
Which APT devices are used in the KPA800 as MOSFETs? On May 17, 2006, at 2:14 AM, Eric Swartz - WA6HHQ, Elecraft wrote: > Hi Augie, > > The KPA800 and 1500 both use the same desk top size enclosure. (I > only had a picture of the 800 for the news release.) > > We move the power supply out of the 800 case and add a 2nd set of > RF decks for the 1500. And we also change the front panel labels. > > 73, Eric _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Hey I did not see the press release is it on the web site anywhere?
> > The KPA800 and 1500 both use the same desk top size enclosure. (I > only had a picture of the 800 for the news release.) > > We move the power supply out of the 800 case and add a 2nd set of > RF decks for the 1500. And we also change the front panel labels. > > 73, Eric _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More.
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In reply to this post by Eric Swartz - WA6HHQ
What, no pan-head screws on the case? :-)
Looks great! Craig NZ0R K1 #1966 K2/100 #4941 -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Eric Swartz WA6HHQ - Elecraft Sent: Tuesday, May 16, 2006 5:50 PM To: Elecraft List; [hidden email] Subject: [Elecraft] What's Happening at the Elecraft Dayton Booth? New Products, Building Demo, T-Shirts, Amp and More. If you're planning to go to Dayton this weekend, May 18-21, please visit us at our expanded booth (booth numbers #196, 197 and 198). Wayne (N6KR), Eric (WA6HHQ), Lyle (KK7P), Brian (W6FVI - Elecraft Support) and many others will be at the booth to demo our products and to chat with you. Map at: http://www.elecraft.com//hamfests/Elecraft_Dayton_loc.pdf DAYTON SPECIALS: Stay tuned to http://www.elecraft.com/news.htm . We will announce our Dayton Specials Thursday morning, the 18th there and on the Elecraft list. KX1 Live Building Demo: Don Wilhelm, W3FPR, will be at our booth with a live KX1 building demo, starting at 10 AM each day for 4-5 hours. Come see how Don builds his KX1 and yes, you will find a lot of great Elecraft owners and prospective owners to chat with. T-Shirts: There will also be a limited number of our newly-designed Elecraft T-shirts for sale! Come early to get your Dayton fashion statement! We'll have lots of K1s, K2s, KX1s, accessories etc and all of our newest products available for sale, including: * KXB3080 - Adds 80 meters to the KX1 ultra-portable transceiver * XV432 - The fourth in our series of high-performance transverters * XG2 - 3-band version of our XG1 receiver test oscillator * 2T-Gen - Two-tone test oscillator for IMD measurements on SSB transmitters * KXPD1-K2 - Allows you to use our compact, 1-oz. KXPD1 paddle with the K2 In addition, we'll be previewing one of our new solid-state auto-tune linear amplifiers (KPA1500). Pictures of the above can be seen at: http://www.elecraft.com/news.htm 73, Eric WA6HHQ and Wayne, N6KR -- _..._ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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: What's Happening at the Elecraft Dayton Booth? NewProducts, Building Demo, T-Shirts, Amp and More.
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In reply to this post by Eric Swartz - WA6HHQ
I'm eager to find out the cost of these amps. They looks expensive...but
beautiful. But I'm holding out for one. Probably the 800 will be more than I ever need. No more Peter I's slipping by after a week of trying! Roland de n5vwn _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft Dayton Booth?NewProducts, Building Demo, T-Shirts, Amp and More.
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Roland said:
No more Peter I's slipping by after a week of trying! > Roland de n5vwn I worked Peter I with my K2 at 5W. Sam, KL7V/5 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft Dayton Booth?NewProducts, Building Demo, T-Shirts, Amp and More.
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> No more Peter I's slipping by after a week of trying!
>> Roland de n5vwn > > >I worked Peter I with my K2 at 5W. >Sam, KL7V/5 If what you are referring to is IK9(P)/IK8HCG, I have worked it with 8W from Turkey. 73! de TA2RX ---------------------------------- Bekir Kemal Ataman ArchiMac BBS Sysop & Webmaster <http://www.archimac.org/> _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft DaytonBooth?NewProducts, Building Demo, T-Shirts, Amp and More.
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> > If what you are referring to is IK9(P)/IK8HCG, I have worked it with 8W > from Turkey. > > 73! > de TA2RX Actually I was referring to the 3Y0X DXpedition. I have not worked the IK9(P). Good work! 73, Sam _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: What's Happening at the Elecraft Dayton Booth? NewProducts, Building Demo, T-Shirts, Amp and More.
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In reply to this post by Eric Swartz - WA6HHQ
Eric - When can I buy an EC8 enclosure (based upon the KPA800 cabinet) to
begin my home brew K3? ;) ----- Original Message ----- From: "Eric Swartz - WA6HHQ, Elecraft" <[hidden email]> To: "Augie (Gus) Hansen" <[hidden email]> Cc: "Elecraft Reflector" <[hidden email]>; <[hidden email]> Sent: Wednesday, May 17, 2006 2:14 AM Subject: Re: [Elecraft] What's Happening at the Elecraft Dayton Booth? NewProducts, Building Demo, T-Shirts, Amp and More. > Hi Augie, > > The KPA800 and 1500 both use the same desk top size enclosure. (I only had > a picture of the 800 for the news release.) > > We move the power supply out of the 800 case and add a 2nd set of RF decks > for the 1500. And we also change the front panel labels. > > 73, Eric > > > Augie (Gus) Hansen wrote: >> >> Nice to see the amplifier. Looks great! >> >> One little problem. Either the caption on the photo page (and the >> reference >> above) is wrong, or the amp has been mislabeled (it shows KPA800). Is it >> reasonable to assume that the two amps look nearly identical? >> >> I hope you sell a lot of them. >> >> Gus Hansen >> KB0YH >> > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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Tom Althoff wrote:
> Eric - When can I buy an EC8 enclosure (based upon the KPA800 cabinet) > to begin my home brew K3? ;) I don't think you want to do this. The KPA's are *much* bigger than a Tentec Orion. I would say that they are at least as big as my National HRO-5TA1. Hmm, now that I think about it... -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, T-Shirts, Amp and More.)
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What I don't understand is why we keep putting small gear in little
rectangular boxes. We need a human sized panel for human sized knobs and buttons but that doesn't mean we need a BIG rig! Indeed, it can be very small and friendly on modern desks. Look at a modern "flat panel" computer or TV display. Why not a desk-top rig that is built like a thick version of one of those? Big and relatively thin? Stand it on a "foot" like the displays. Heatsink on the back, if needed, along with necessary connectors, and lots of space for controls on the front. The large panel area would allow the layout of the circuits to follow a logical path, with controls closely associated with the circuits they're associated with. If there's a really heavy part, like a big heat sink for the finals, put it down at the bottom at the "foot". You want the antenna connectors down there anyway. And no multiple layers of tightly packed PC boards to wade through when troubleshooting either! That's nothing new. It's how radios were built in the 1920's, 30's and at least through the 50's. Remember seeing pictures of those huge, long 1920-vintage broadcast-band receivers with a whole row of knobs across the front? Those were tuned-radio-frequency sets with a whole row of tubes amplifying the signal before it was detected (turned into audio). Each knob adjusted the tuning of the amplifier behind it. Parts were big, so the cabinet had to be pretty deep, but the first step in the design was to lay out the controls so they were close to the associated circuits. As superhets took over, fewer controls were needed to tune R.F. amplifiers and more controls were needed for the I.F. and audio stages, but the same basic layout remained, progressing from the antenna to the audio output. The form factor was constrained by the front panel and the unit was only as deep as needed by the bulk of the parts used. Smaller sets were often built right on the back of the "front panel" with no "chassis" at all, just a box to hold the front panel vertical and keep inquisitive fingers from breaking tubes or getting into high voltages. The logical evolution would have been for those to get thinner and thinner until modern solid state radios were simply a thick "front panel". Instead we kept the old rectangular form factor and reduced the size of the front panel and the controls! Wayne took a big step in the direction I'm suggesting with the KX1, putting the controls on the top of the box instead of the "front". The original rig had one main PCB behind the panel with the controls laid out near the associated circuits. Picture a 100 watt KX1 tilted up at a 45 degree angle with a base and having the same thickness but a panel size of, say, 14x18 inches (35X45 cm) with suitable knobs and meters... Ah... Meters...but that's another story... Ron AC7AC _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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That's an interesting thought, Ron. It would also give a lot more room for rear panel connectors. 73, Larry N8LP Ron D'Eau Claire wrote: > What I don't understand is why we keep putting small gear in little > rectangular boxes. > > We need a human sized panel for human sized knobs and buttons but that > doesn't mean we need a BIG rig! Indeed, it can be very small and friendly on > modern desks. > > Look at a modern "flat panel" computer or TV display. Why not a desk-top rig > that is built like a thick version of one of those? Big and relatively thin? > Stand it on a "foot" like the displays. Heatsink on the back, if needed, > along with necessary connectors, and lots of space for controls on the > front. > > The large panel area would allow the layout of the circuits to follow a > logical path, with controls closely associated with the circuits they're > associated with. If there's a really heavy part, like a big heat sink for > the finals, put it down at the bottom at the "foot". You want the antenna > connectors down there anyway. And no multiple layers of tightly packed PC > boards to wade through when troubleshooting either! > > That's nothing new. It's how radios were built in the 1920's, 30's and at > least through the 50's. Remember seeing pictures of those huge, long > 1920-vintage broadcast-band receivers with a whole row of knobs across the > front? Those were tuned-radio-frequency sets with a whole row of tubes > amplifying the signal before it was detected (turned into audio). Each knob > adjusted the tuning of the amplifier behind it. Parts were big, so the > cabinet had to be pretty deep, but the first step in the design was to lay > out the controls so they were close to the associated circuits. As superhets > took over, fewer controls were needed to tune R.F. amplifiers and more > controls were needed for the I.F. and audio stages, but the same basic > layout remained, progressing from the antenna to the audio output. The form > factor was constrained by the front panel and the unit was only as deep as > needed by the bulk of the parts used. > > Smaller sets were often built right on the back of the "front panel" with no > "chassis" at all, just a box to hold the front panel vertical and keep > inquisitive fingers from breaking tubes or getting into high voltages. > > The logical evolution would have been for those to get thinner and thinner > until modern solid state radios were simply a thick "front panel". > > Instead we kept the old rectangular form factor and reduced the size of the > front panel and the controls! > > Wayne took a big step in the direction I'm suggesting with the KX1, putting > the controls on the top of the box instead of the "front". The original rig > had one main PCB behind the panel with the controls laid out near the > associated circuits. > > Picture a 100 watt KX1 tilted up at a 45 degree angle with a base and having > the same thickness but a panel size of, say, 14x18 inches (35X45 cm) with > suitable knobs and meters... > > Ah... Meters...but that's another story... > > Ron AC7AC > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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In reply to this post by Ron D'Eau Claire-2
Geez, Ron...that's actually brilliant!
Eric KE6US www.ke6us.com -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Ron D'Eau Claire Sent: Wednesday, May 24, 2006 10:49 AM To: 'Elecraft Reflector' Subject: RE: [Elecraft] Wha'ts Wrong With Our Radios (WAS:NewProducts,Building Demo, T-Shirts, Amp and More.) What I don't understand is why we keep putting small gear in little rectangular boxes. Picture a 100 watt KX1 tilted up at a 45 degree angle with a base and having the same thickness but a panel size of, say, 14x18 inches (35X45 cm) with suitable knobs and meters... Ron AC7AC _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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: Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, T-Shirts, Amp and More.)
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In reply to this post by Ron D'Eau Claire-2
Ron,
Interesting take on the flat pannel rigs. I've long wanted to mount my Kenwood TS-850S/AT to that the controls are flush with the desktop, but that put too much below the desk for knees, little hands, and pets to clobber. As an alternative, mounting the controls so they are at a 45 degree angle of greater for easy visibility. Again too much sticking below the desk and it would have to be too close to the front edge to accommodate for the depth of the rig. My IC-706MKIIG is about as close to this as I can get, but you are right, small controls, especially for aging eyes. The K2 front pannel is easily remoted and I've seen a few K2s mobile with the front remoted. Very slick. Now if I can only get my K2 transmitting again, I would be in business. Mark Saunders, KJ7BS Glendale, AZ ---- Ron D'Eau Claire <[hidden email]> wrote: ============= What I don't understand is why we keep putting small gear in little rectangular boxes. We need a human sized panel for human sized knobs and buttons but that doesn't mean we need a BIG rig! Indeed, it can be very small and friendly on modern desks. Look at a modern "flat panel" computer or TV display. Why not a desk-top rig that is built like a thick version of one of those? Big and relatively thin? Stand it on a "foot" like the displays. Heatsink on the back, if needed, along with necessary connectors, and lots of space for controls on the front. The large panel area would allow the layout of the circuits to follow a logical path, with controls closely associated with the circuits they're associated with. If there's a really heavy part, like a big heat sink for the finals, put it down at the bottom at the "foot". You want the antenna connectors down there anyway. And no multiple layers of tightly packed PC boards to wade through when troubleshooting either! That's nothing new. It's how radios were built in the 1920's, 30's and at least through the 50's. Remember seeing pictures of those huge, long 1920-vintage broadcast-band receivers with a whole row of knobs across the front? Those were tuned-radio-frequency sets with a whole row of tubes amplifying the signal before it was detected (turned into audio). Each knob adjusted the tuning of the amplifier behind it. Parts were big, so the cabinet had to be pretty deep, but the first step in the design was to lay out the controls so they were close to the associated circuits. As superhets took over, fewer controls were needed to tune R.F. amplifiers and more controls were needed for the I.F. and audio stages, but the same basic layout remained, progressing from the antenna to the audio output. The form factor was constrained by the front panel and the unit was only as deep as needed by the bulk of the parts used. Smaller sets were often built right on the back of the "front panel" with no "chassis" at all, just a box to hold the front panel vertical and keep inquisitive fingers from breaking tubes or getting into high voltages. The logical evolution would have been for those to get thinner and thinner until modern solid state radios were simply a thick "front panel". Instead we kept the old rectangular form factor and reduced the size of the front panel and the controls! Wayne took a big step in the direction I'm suggesting with the KX1, putting the controls on the top of the box instead of the "front". The original rig had one main PCB behind the panel with the controls laid out near the associated circuits. Picture a 100 watt KX1 tilted up at a 45 degree angle with a base and having the same thickness but a panel size of, say, 14x18 inches (35X45 cm) with suitable knobs and meters... Ah... Meters...but that's another story... Ron AC7AC _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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: Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, T-Shirts, Amp and More.)
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In reply to this post by Ron D'Eau Claire-2
On 5/24/06, Ron D'Eau Claire <[hidden email]> wrote:
> What I don't understand is why we keep putting small gear in little > rectangular boxes. I agree. I hope my next QRP rig is the size of Apple's iPod nano *. :-) http://www.apple.com/ipodnano/ * 3.5 x 1.6 x 0.27 inches and 1.5 ounces or 89 x 41 x 7 mm and 42.5 grams _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Eric Swartz - WA6HHQ
All,
I have sent this under a new but similar subject. I have been wrestling with the desire for a new FD operating class that required 100% renewable energy be used. I think that this would need a restriction something like no more that 0.5 Amp Hours per transmissted watt of pre-stored energy. This would be to encourage those interested in developing a means to work a long-term emergency where even gasoline is not available. Anybode else think this class would be interesting? Fran, KA4FRH K2 s/n 314 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In a message dated 7/8/06 2:37:35 PM Eastern Daylight Time,
[hidden email] writes: > I have been wrestling with the desire for a new FD operating class that > required 100% renewable energy be used. I think that this would need a > restriction something like no more that 0.5 Amp Hours per transmissted watt > of pre-stored energy. > > This would be to encourage those interested in developing a means to work a > long-term emergency where even gasoline is not available. > > Anybode else think this class would be interesting? > It would be very interesting, but the pre-stored business wouldn't be needed. All it would take is for the rules to require that the primary power system be adequate to run the station long-term. IOW, if the primary source were solar, with battery backup, the panel output would have to be enough so that the state of battery charge at the end of the FD period would be the same or greater than at the beginning. This could be shown by a simple analysis of the system components. For example, suppose a K2 at 5 watts draws 280 mills on receive and 1 A on transmit, and we assume transmit duty cycle of 25% (key down time). In one hour's time, the rig will use .210 AH while receiving and .250 AH while transmitting - total load .460 AH. Round up to 0.5 AH. If the contest lasts 24 hours, you need 12 AH of battery. To put back that much energy would require a panel of 2 A capacity, if we assume 8 hours of full daylight and 66% charger/battery efficiency. These are just WAEG numbers, of course. Point is, there would be practical educational value in figuring it all out. 73 de Jim, N2EY _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
Optimising the PA stages
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Hi All
Ser Nr 5544 is now alive and kicking. When doing the Align/Test P III with the referenced power level setting of 10.0W I find the current level hovering around the upper limit of the recommended range at 2.0 amps although I did not see any Hi Current warnings. All the RX/TX alignment also seems OK. Is there any published tables on typical performance variance across the bands regarding signal level in for say S9 or MDS? or typical power levels out? This leads me to believe that some optimising can possibly be done, or I have some stages slightly off the intended specs. I was sure I seen some posts previously on alternate winding of the transformers in the TX chain from T1 onwards but I am getting way to may hits from the 11k messages I have archived from this list to be able to filter them down easily. Any information appreciated. John _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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