Re: [Elecraft] Some Interesting WRTC Statistics
I would too. But the size sure makes it easier for portable operation-one of the great features of the K3. John N1JM On Wed, Jul 21, 2010 at 10:17 PM, Rick Tavan N6XI [via Elecraft] ml-node+5324055-564332814-44...@n2.nabble.comml-node%2b5324055-564332814-44...@n2.nabble.com wrote: I don't know but if I had been offered a pair of 9000s or a pair of 7800s, delivered to my operating position, I still would have taken my K3s. /Rick N6XI On 7/20/10, N1JM [hidden email]http://user/SendEmail.jtp?type=nodenode=5324055i=0 wrote: I wonder how many K3s would have been there if they were the size and weight of the FT-9000? -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=5324055i=1 This list hosted by: http://www.qsl.net http://www.qsl.net?by-user=t Please help support this email list: http://www.qsl.net/donate.html -- View message @ http://elecraft.365791.n2.nabble.com/Some-Interesting-WRTC-Statistics-tp5311415p5324055.html To unsubscribe from Re: Some Interesting WRTC Statistics, click here (link removed) =. -- View this message in context: http://elecraft.365791.n2.nabble.com/Some-Interesting-WRTC-Statistics-tp5311415p5325146.html Sent from the [HAM] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX1 - 6Watts on 3040
I haven't used my KX1 in a while, but I noticed it is running over 6 watts when connected to a 13.8 volt power supply on 30 and 40 meters. 20 meters is about 4.2 watts and 80 meters is between 4.7 and 5.0 watts. Is this excessive and will it cause damage or a dirty signal? If there is a problem, where should I begin my search? Internal batteries generate significanlty lower output: 80M 1.7W; 40M 2.5W; 30M 2.0W; 20M 1.8W Jim W6VAR -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-6Watts-on-30-40-tp5325218p5325218.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SO-239 Connector Selection
Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMtqi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrGzC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
The 83-798A has a Teflon insulator - this is what makes it different. They're all equivalent for low frequency, low power (200w) work which I presume your bandpass filters will be. High-End? What design? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Thursday, July 22, 2010 8:22 AM To: elecraft Subject: [Elecraft] SO-239 Connector Selection Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMt qi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3 rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrG zC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft IOTA Excursion
This weekend, an all Elecraft IOTA contest excursion to NA-067 Core Banks, NC will activate N4A during the competition. K3 and K2 versions will be used. Please give us a shout!! 73, Dan -- N3ND __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 Manual
GM: Can anyone at Elecraft provide an update on the availability of the P3 Manual? 73, Doug VE3MV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
Based on W3NQN's filters and rated for 200W. Makes sense on the teflon insulator... I assume that that only makes the difference when doing higher power? I do think that whenever I'm making an antenna that is to have a connector blow torch soldered to a copper pipe or something I'm going to buy one of those! Now I just wonder what the difference in the small price jump delta between RFX and non RFX is... ~Brett (N7MG) On Thu, Jul 22, 2010 at 6:34 AM, Bob Naumann w...@w5ov.com wrote: The 83-798A has a Teflon insulator - this is what makes it different. They're all equivalent for low frequency, low power (200w) work which I presume your bandpass filters will be. High-End? What design? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Thursday, July 22, 2010 8:22 AM To: elecraft Subject: [Elecraft] SO-239 Connector Selection Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMt qi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3 rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrG zC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX1 - 6Watts on 3040
Jim, Lower the power when running on the 13.8 volt supply - 4 watts or a bit less. The components in the PA output circuit will thank you and live a longer life. You can use a slim flatblade screwdriver and adjust R4 through the hole in the bottom of the enclosure (and also through the tuner) - that is why it is there. 73, Don W3FPR Jim - W6VAR wrote: I haven't used my KX1 in a while, but I noticed it is running over 6 watts when connected to a 13.8 volt power supply on 30 and 40 meters. 20 meters is about 4.2 watts and 80 meters is between 4.7 and 5.0 watts. Is this excessive and will it cause damage or a dirty signal? If there is a problem, where should I begin my search? Internal batteries generate significanlty lower output: 80M 1.7W; 40M 2.5W; 30M 2.0W; 20M 1.8W Jim W6VAR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: SO-239 Connector Selection
A word of caution about SO-239 / PL-259's ... In some connector applications ... particularly power dividers and other applications that are impedance- conscious ... SO-239 / PL-259 connectors are not suitable. They're -not- 50-ohm connectors. This is why one usually sees Type-N connectors used in these applications. They -are-, by definition, 50-ohm connectors. I learned this the hard way some years ago when I built and sold VHF and UHF NBS Yagis with multi-port power dividers. This may not be an issue with Brett's filters, but I'd stay with N's or BNC's. They're also, by definition, 50-ohm connectors, BTW. I've specified BNC's for all my ICE filters, and have them on my K3, watt meters, etc. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX1 - 6Watts on 3040
Jim : I made the documented power mod to my KX1 as I was getting too little power out, but then I had a similar experience to yours when running off of a power supply or a fully charged SLA battery so I built a poor mans voltage regulator that I can put in series with my power cable when powering the rig from an external source. All I did was to put a couple of diodes in series, with a third that I can switch in and out and this provides a bit of a voltage drop. This way I can still get a reasonable output with the internal batteries without frying the PA when I power the rig from 13.8V. Michael VE3WMB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3-Options
I am making plans to purchase a K3. I will most likely start with the bare-bones /10 version. I ultimately want to have the voice recorder option. Looking at the assembly manual for this, it strikes me that it might be advisable to install this as part of the original build rather than add it later so as not to have to remove the front panel. Does this make sense? ...bc nr4c __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Options
That argument does not make sense to me. The front panel is not difficult to remove at all. Removing the front panel from the K3 is quite different than disassembling the front panel assembly. Of course, if you have the current budget to purchase it now, yes it is a little easier to include it with the initial build. 73, Don W3FPR n...@widomaker.com wrote: I am making plans to purchase a K3. I will most likely start with the bare-bones /10 version. I ultimately want to have the voice recorder option. Looking at the assembly manual for this, it strikes me that it might be advisable to install this as part of the original build rather than add it later so as not to have to remove the front panel. Does this make sense? ...bc nr4c __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
In some connector applications ... particularly power dividers and other applications that are impedance- conscious ... SO-239 / PL-259 connectors are not suitable. This is NEVER the case at 30 MHz and lower, so long as connection to the connector are properly done. The total impedance bump length in a UHF female to UHF male pair is about the length of the center pin of the female. All of the problems are in the female, and the length of the problem area is confined to the spread area of the female that fits over the male pin. That area is about 35 ohms impedance, not a large mismatch. The effect of that is virtually immeasurable on 30 MHz. If connections to the SO-239 are 50 ohms, the SWR caused by a SO-239 would be 1.006:1. If anyone has a problem using a single SO239 PL259 pair below 50 MHz in anything but the most critical measurement systems, they did something else wrong. This would include filters, combiners, splitters, and loads. 1/2 inch at 35 ohms is nothing below UHF. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
SO-239 / PL-259 connectors are not suitable. WRONG! This is another myth, repeated and repeated until it becomes accepted. This is HF, not UHF. The impedance of the connector only matters when the frequency is high enough that the length of the transmission line that the connector comprises is a significant fraction of a wavelength. Good quality UHF connectors (PL-259 and SO-239) are more than adequate for anything we do on the HF and VHF bands. We need to worry about the impedance of the connector at UHF and above. A brief anecdote. This spring, I made up a lot of RG8 cables for a DXpedition. As part of a final test, I hooked eleven 100 ft lengths in series and measured the loss. It was within measurement error of the specified loss of the cable up to 400 MHz. That was 22 PL-259s, 11 barrels, and two PL-259 to N adapters to get to the HP generator and HP spectrum analyzer that I used to measure it. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
Makes sense on the teflon insulator... I assume that that only makes the difference when doing higher power? It mostly makes a difference in soldering. The measured voltage breakdown of a standard Amphenol SO-239 is well over 5000 volts peak. The arc point is normally the air gap between the end of the female and the connector shell over the face of the dielectric, provided the pin soldering is smooth and without points or accidental closure of the air gap at the pin area with sloppy wiring or soldering. I normally high-pot my PL259 installations to 5000 volts or higher as a cable test to check for stray shield strands or other problems. SO-239's test just as high or higher, and all of my 1:1 baluns are tested that way before installation and they use UHF females. Other then the fact some plastics in cheap connectors heat a bit at extreme voltage and high frequency, I can't imagine any need for Teflon other than soldering or reduced carbon tracking from lightning or arcs. I mainly use Teflon because I torch solder SO239's and 259's on my homebrew hardline connectors, and it is better with lightning arcs or 1500 watts into open terminated cables when a switch is wrong. For your filter application, you could use anything. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
I agree with Tom. The biggest problem, from my perspective, with the UHF connectors is the variability of attachment to the cable. I have no experience with crimp varieties, they may mitigate the issue, but the solder on types are ripe for trouble. The other problem with them if you are trying to do any precision measurements---an oxymoron I suppose---is that any decent instrumentation will have type N connectors, thus adapters are necessary. Again at HF I would just include the adapter as part of the thing I was testing and not worry about it. Wes N7WS --- On Thu, 7/22/10, Tom W8JI w...@w8ji.com wrote: In some connector applications ... particularly power dividers and other applications that are impedance- conscious ... SO-239 / PL-259 connectors are not suitable. This is NEVER the case at 30 MHz and lower, so long as connection to the connector are properly done. The total impedance bump length in a UHF female to UHF male pair is about the length of the center pin of the female. All of the problems are in the female, and the length of the problem area is confined to the spread area of the female that fits over the male pin. That area is about 35 ohms impedance, not a large mismatch. The effect of that is virtually immeasurable on 30 MHz. If connections to the SO-239 are 50 ohms, the SWR caused by a SO-239 would be 1.006:1. If anyone has a problem using a single SO239 PL259 pair below 50 MHz in anything but the most critical measurement systems, they did something else wrong. This would include filters, combiners, splitters, and loads. 1/2 inch at 35 ohms is nothing below UHF. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] So-called UHF connectors...
Even at 144 MHz, UHF connectors are probably acceptable, with the bump being 1 cm in length compared to 200 cm. I think more at issue is the environmental quality of the dielectric. The old military ones, with what we used to call mud as the dielectric material are really not very forgiving of anything outdoors on the long term. They shrink, crack, hold water, etc. On the other hand, the PTFE (teflon) dielectric versions will hold up under quite vile conditions, particularly if properly booted. Personally, I like the Type N connectors, and even prefer them over the BNC and other variations. They go together much more easily (one might even say rationally) than the UHF male cable ends, and anyone who has ever taken a UHF cable-end male apart has seen what a mess the sweat-soldering can make of the insidebut I do think that the issue with standard mud type UHFs is with the durability of the dielectric, not with the impedance bump, at HF and even low VHF frequencies. John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Variable Bandwidth Filters
Has there been any further thought of developing variable bandwidth filters for the K3? Roy Morris W4WFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Options
Commenting as one who waited to install the DVR: as Don says, it's not all that difficult to do. That said, the DVR is so good, I wished I had purchased it originally. So, I would recommend getting it now because it works so well - not because of difficulty of installation later. 73, Bob W5OV That argument does not make sense to me. The front panel is not difficult to remove at all. Removing the front panel from the K3 is quite different than disassembling the front panel assembly. Of course, if you have the current budget to purchase it now, yes it is a little easier to include it with the initial build. 73, Don W3FPR n...@widomaker.com wrote: I am making plans to purchase a K3. I will most likely start with the bare-bones /10 version. I ultimately want to have the voice recorder option. Looking at the assembly manual for this, it strikes me that it might be advisable to install this as part of the original build rather than add it later so as not to have to remove the front panel. Does this make sense? ...bc nr4c __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
On Thu, 2010-07-22 at 10:27 -0700, Wes Stewart wrote: The other problem with them if you are trying to do any precision measurements---an oxymoron I suppose---is that any decent instrumentation will have type N connectors, thus adapters are necessary. It's a little-known fact that a male N connector is a perfect fit with a female BNC. Of course, there is no locking mechanism so you wouldn't want to use it for an antenna connection, but it works fine for testing on the bench - no adapter necessary. Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: SO-239 Connector Selection
My experience with SO-239' / PL-259's -was- at VHF and UHF, and I said so in my posting. I was made aware of this when the Colorado Springs radio club ordered a 4-port divider to feed their 2M repeater's antennas and they specified / insisted on me building it with SO-239's. I shipped it and within a few days they were complaining of high SWR. Before getting the original one back I built and shipped a second unit, only to get the same report. It was only when I built the 3rd unit with N's did it work correctly. My friends at the NBS labs ... who originated NBS yagi design (W0PW / W0EYE) ... along with the particular power divider design ... explained what was going on. The non-50 ohm SO-239's connected to the 35 ohm transmission line / power divider were influencing the impedance of divider. My years at CU's radio astronomy lab and the NBS cafeteria represent some of the best learning in my career. I learned much via napkin tutoring done by some of the nation's best radio minds. 73! Ken Kopp - K0PP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 VOX
The K3 seems to remember VOX on/off on a per band basis. Any chance to have it on a per mode basis? 73, Mike NF4L __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 VOX
On third thought, disregard the previous post, and revert to #1. On 7/22/2010 2:01 PM, Mike wrote: Never mind. Senior-itis strikes again. On 7/22/2010 1:59 PM, Mike wrote: The K3 seems to remember VOX on/off on a per band basis. Any chance to have it on a per mode basis? 73, Mike NF4L __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 VOX
Please. Dunc, W5DC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
On 7/22/2010 10:49 AM, Alan Bloom wrote: It's a little-known fact that a male N connector is a perfect fit with a female BNC. Of course, there is no locking mechanism so you wouldn't want to use it for an antenna connection, but it works fine for testing on the bench - no adapter necessary. But beware doing it cross species - the male pin of an PL-259 connector can be forced into a female N connector by tightening the shell threads, thereby ruining the N-connector. One of our served agencies found that out the hard way when one of their set-up mechanics tried to hook up the wrong end of the antenna cable and they had to buy us a new Dual-Band antenna. (ouch!) -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Memory Manager - MCU 3.94 requesting beta copy
Hello All, Does anyone out there have a copy of the latest field test version of K3 Memory Manager - (ref in MCU 3.94 notes)? I understand that it is in beta testing and has a few issues but is anyone willing to share a copy? I figure a beta copy with known issues is better then no copy at all ;-) If someone could send me a copy ( or a link ) I would be most grateful, Thanks and 73, Frank - W6NEK w6nek at socal.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
Another little known fact is BNCs come in both 50 ohm 75 ohm versions. I used both 75 ohm (video) 50 ohm (RF) at work. So verify if it matters to the usage! -- It's a little-known fact that a male N connector is a perfect fit with a female BNC. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Repair backlog catch-up ...
This week I sent my K3 for a factory update inasmuch as 4500 K3s have been built since mine. The pleasant surprise was being told July 19 by Elecraft's Ms. Madelyn the turn-around would be two weeks. Thanks, Elecraft crew, one and all! Bill, W0WOI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 75, Issue 38
Joe: I had forgotten about that nuance regarding the PFL level! Yes, its in the manual! I will set that when I get home and maybe solve my problem via software. Maybe.. What about your statement regarding the Monitor and CW sidetone... Are you saying that these signals are not available on the Fixed Line Out spigot? That would defeat the purpose of what Im doing. Im looking for a fixed output *WITH* both SSB Monitor and CW Monitor inserted in the audio path. In this case, I could put the stereo out of the rig into my audio DA's and send them to their destinations from there, and never need to touch a level pot again (once I set the DA level) I did not know that the piggyback LPF board was not active on the LINE OUT spigot and only on the Headphone Out and Speaker Out spigot! I have one on hand but have not installed it yet, and I really dont use either of the above, so I might need to put my Behringer Graphic EQ that is gathering dust in the audio rack on the audio output post processing and make the rig flat again, then use the Behringer EQ to adjust the response. Glad I still have a patch bay handy :) Joe, I have all this stuff with lots of blinking lights from my TS850 days sitting there not doing anything, I have to put it to work, right? Us Hams LOVE blinking lights! I find the AF LIMIT feature very nice for low band work. It turns the QRM into pseudo white noise splashes but I can still hear signals below it. Worked well for me at NQ4I on 160m in this past WPX SSB (see our band scores for proof). The little compressor works like a pseudo AGC, clipping the loud crashes and saving my ears in the process. Reason I dont follow good engineering practice as you describe is because Im old and stupid and sometimes I forget and I grab the big volume pot on the rig in the heat of battle instead of the little pot on the headset mixer, since now Im much more attuned to the RF gain control than on the Japanese rigs I owned before. Its handy, its there, and its under the fingers, so I just stupidly grab for it... I will try to teach myself not to (a fixed level output will certainly teach me, wont it?) -lu- Message: 12 Date: Wed, 21 Jul 2010 15:41:12 -0400 From: Joe Subich, W4TV li...@subich.com Subject: Re: [Elecraft] K3: Recording from LIN OUT To: elecraft@mailman.qth.net Message-ID: 4c474d58.5040...@subich.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Lu, It certainly would be nice to have a FIXED level out of that line out jack and be able to adjust levels on the headset mixer to the individual outputs without having the rig volume pot interfere. The K3 has a fixed level (pre-fader level for audio pros) output. Use the Line Out set to nor and set the level as appropriate for your external hardware. I have not checked recently with a calibrated audio voltmeter, but I do recall easily seeing .775V RMS with a 50 uV signal and AGC off - I even had to reduce the RF gain to keep from distorting (exceeding 1V+ RMS - note the DAC output can go to about 4.2V P-P and with transformer loss the actual output should easily reach 2V P-P or .775mV RMS). The only question is adding monitor and sidetone audio to that Line Out audio ... and I don't see a digital mixer capable of providing that capability unless it can be coded into the overall DSP. The real question though is, if you are going to all the trouble to use a leveller, mixer, headset amplifier and speaker chain, why would you even attempt to adjust the audio on the transceiver? Doing so is like giving an intern, production assistant, or news videographer a greenie and leaving them alone with the equipment G. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] So-called UHF connectors...
insidebut I do think that the issue with standard mud type UHFs is with the durability of the dielectric, not with the impedance bump, at HF and even low VHF frequencies. That's an accurate statement John. The largest bump I've even measured with a SO239 PL259 pair was about 1.05:1 at 147 MHz. The highest SWR with two in tandem, with optimum spacing between bumps to enhance SWR error, was around 1.1 :1. Like Motorola and other have done in the past, I think nothing of a few UHF connectors on 2 meters. Barrel connectors can be a problem at VHF, because they can have a long mismatch area, but not properly installed UHF pairs or good short barrels. That goodness length matters, because look at the horrible mismatches in wiring inside our radios and tuners. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Memory Manager - MCU 3.94 requesting beta copy
Many thanks to Dick for response. Best 73, Frank - W6NEK - Original Message - From: W6NEK w6...@socal.rr.com To: Elecraft@mailman.qth.net Sent: Thursday, July 22, 2010 11:31 AM Subject: [Elecraft] K3 Memory Manager - MCU 3.94 requesting beta copy Hello All, Does anyone out there have a copy of the latest field test version of K3 Memory Manager - (ref in MCU 3.94 notes)? I understand that it is in beta testing and has a few issues but is anyone willing to share a copy? I figure a beta copy with known issues is better then no copy at all ;-) If someone could send me a copy ( or a link ) I would be most grateful, Thanks and 73, Frank - W6NEK w6nek at socal.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3021 - Release Date: 07/21/10 23:36:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: SO-239 Connector Selection
On 7/22/2010 11:34 AM, George Jan wrote: Another little known fact is BNCs come in both 50 ohm 75 ohm versions. I used both 75 ohm (video) 50 ohm (RF) at work. Ditto for N series. We used to paint a red ring around the 75 ohm types in our off-the-air monitoring facilities for ease of identification. -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft IOTA Excursion
Good Luck Dan, hope to work you during the contest. We will be active from EU-146 with two K3's and one K2 as a spare. The call will be PA0ABM/p. Please give us a shout too. 73, Maarten PD2R 2010/7/22 Dan Atchison n...@aol.com This weekend, an all Elecraft IOTA contest excursion to NA-067 Core Banks, NC will activate N4A during the competition. K3 and K2 versions will be used. Please give us a shout!! 73, Dan -- N3ND __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Another K3 IOTA excursion to NA-065
K6KR will be using a K3 (and generator power) on NA-065 (Whidbey Island). Hope to work you! 73 de Dick, K6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - D104 Buffer Schematic
Last night, I built up the following D104 buffer circuit as discussed by Joe, W4TV. http://72.52.250.47/images/D104.jpg Joe's idea works very well. The difference between this circuit and other D104 buffer circuits as seen on the Internet is that it is powered directly from the K3's mic lead when the bias menu is activated. One benefit is that the circuit can be ported to a PC sound card. Another benefit for most builders: Only one part is required -- either a J201 or MPF-102 nFET transistor. When using the PC input configuration shown, I also had good results with a Samsung NC10 netbook. I tried the MPF-102 and J201, and each works well, although the J201 FET can be operated with an Ids current down to 0.5 mA. R89 in the K3 limits the Ids current. The minimum Ids spec for the MPF-102 is 2.0 mA but seems to perform the same, albeit with slightly less gain as expected. The D104 cartridge level is relatively high anyway and I found that in either configuration, the K3's mic menu could be set for the low gain setting. Also note the inclusion of the optional Rg and Rs resistors. My breadboarded pre-amp is stable without those components and the gate biases just fine. I'm also not too concerned about static here in Florida. At 15-cents ea., the FET is easy and cheap enough to change. Finally, if RFI becomes an issue, it may be helpful to experiment with a bifilar-wound, common-mode choke at the shielded cable entry, close to the FET. I would try that before attempting differential-mode abatement techniques (e.g, bypass caps to ground). Similarly, the mic cable at the K3 connector end can be wound through a #31 core, if necessary. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] SDR with a Twist
I just received my FLEX-1500. I think they have shipped 1,000 of these in the last few weeks, erasing their backlog dating about 12 months. It has a transmit problem and is going back to the factory for repair, but examining the unit got me to thinking once more about PC based SDR, Elecraft and our unique place in Amateur radio. Please bear with me. The Flex is a dual Eurocard box, so it measures about 4 x 6 x 2. It has a 5W Tx with band coverage limits, and a 1 mW transverter side with no band limits. It covers 160m - 6m continuously ,using a DDS. It accepts a 10 MHz reference and a lot of the focus of the radio is toward microwave and VHF/UHF folks. But they are also trying hard to break ground into the QRP community, as witnessed by their blitz at Dayton last year at the QRP hotel. An almost universal complaint with the Flex products, including the -1500, is less-than-stellar CW performance. The internal keyer is rough, it doe snot do QSK, it uses T/R relays, etc. PowerSDR is a screen hog. The -1500 does not support VOX. It doesn't even have a speaker amplifier. Etc. Here is my thought: Elecraft makes a box about the size of the -1500. It has a basic 10W transceiver, space for internal battery (option), space for an internal ATU (option). Rather than leverage PowerSDR we enter an agreement with Alex, VE3NEA. He was written Rocky which has an elegant, eminnently uncluttered UI. Rocky is freeware, but he could tailor it to our new product. It is not open source. He'd get a royalty or some upfront engineering payment. Alex is the author of CW SKimmer, so this opens more markets for that software for him. ROcky woudlnt' need much to be a great user program for us. And -bing! - it uses little screen real estate, so our portable unit is Netbook compatible. PowerSDR is a hog on a netbook, and you have to use an expanded screen so you can;t even see the minimum PowerSDR screen all at once, never mind trying to run some logging program, or skimmer, or digimode stuff. Oh, and it already supports the Si570 :-) Netbooks are cheap, $300 typical, and have long-enough lasting batteries for a day in the field. If you've never played with Rocky, you should. Get a $19 softrock from KB9YIG and fire it up with Rocky. You'll be impressed with what Alex has done. Our SDR woudl have a K1EL WinKeyer (or similar) to get around the iambic keyer propblem and windows lantency that Flex has been fighting for years now. With our 10W PA and PIN diode T/R switching, we beat FLex hands down for our groupies, the QRP CW operators of the world. With the battery option and internal ATU option, we've got a portable radio station that is inexpensive, powerful and highly portable. With Alex doing the Rocky code, our support issues are reduced. We're not trying to appeal to an open-source religious community, We'd fall a bit short with no external reference input. We could do a frequency locked system with the Si570, but not a phase-locked one. Then again, how many people are really doing moonbounce and need that additional stability and accuracy? Using the TI PCM2900 series CODEC (I suspect FLex uses this as well, I haven't opened my -1500 and it is now in the hands of UPS to get repaired.replaced). But this CODEC is recognized by all sorts of computer OSes. We could open up the radio's API so anyone who wanted to could port another SDR app to run our radio (like PowerSDR, or WinRad, or LinRad, or... :-) This would gives us a very competitive radio, open a new audience to Elecraft, provide another I gotta have it product for our existing customers, catapult us to the front of the line for QRP SDR, leverage our existing designs and expertise, have low risk, we need to write ZERO DSP code and ZERO UI code. We just need to manage T/R switching and enforce band limits, implement a keyer with a standard protocol (hence the Winkey). The case is simple: ON|OFF and a couple of LEDs on one side. A USB connector, expansion/accessory connector (similar to Flexwire), mic jack, keyer jack, phones jack. Low risk way to evaluate a lot of the technology for the KX2 and possibly the K4 IF section (QSD/QSE, no tune BPF and LPF, Si570 Synth, switching regulator). We can use the foundation and add a front panel (top panel?) section and etc. and create the KX2, or at least the functional equivalent. The limited DR of the TI CODEC would require intelligent use of a preamp and multi-stage attenuator, but Alex is clever and would manage that quite well, I think. Leverage, leverage, leverage. Could have it by Dayton 2011 in spite of the setbacks this summer from component issues. Basic 10W radio: $699 (Flex 1500 is 5W and $649) Internal ATU: $149 (superset of T1?) Battery pack: $129 (Li-Ion with charge controller) If we never market it, it is a good development vehicle for the KX2 (all but the DSP and FP). IF we do market it, it is a great product and helps
Re: [Elecraft] K3 - D104 Buffer Schematic
Adobe .PDF of the same schematic: http://72.52.250.47/images/D104.pdf Paul, W9AC - Original Message - From: Paul Christensen w...@arrl.net To: elecraft@mailman.qth.net Sent: Thursday, July 22, 2010 5:29 PM Subject: K3 - D104 Buffer Schematic Last night, I built up the following D104 buffer circuit as discussed by Joe, W4TV. Joe's idea works very well. The difference between this circuit and other D104 buffer circuits as seen on the Internet is that it is powered directly from the K3's mic lead when the bias menu is activated. One benefit is that the circuit can be ported to a PC sound card. Another benefit for most builders: Only one part is required -- either a J201 or MPF-102 nFET transistor. When using the PC input configuration shown, I also had good results with a Samsung NC10 netbook. I tried the MPF-102 and J201, and each works well, although the J201 FET can be operated with an Ids current down to 0.5 mA. R89 in the K3 limits the Ids current. The minimum Ids spec for the MPF-102 is 2.0 mA but seems to perform the same, albeit with slightly less gain as expected. The D104 cartridge level is relatively high anyway and I found that in either configuration, the K3's mic menu could be set for the low gain setting. Also note the inclusion of the optional Rg and Rs resistors. My breadboarded pre-amp is stable without those components and the gate biases just fine. I'm also not too concerned about static here in Florida. At 15-cents ea., the FET is easy and cheap enough to change. Finally, if RFI becomes an issue, it may be helpful to experiment with a bifilar-wound, common-mode choke at the shielded cable entry, close to the FET. I would try that before attempting differential-mode abatement techniques (e.g, bypass caps to ground). Similarly, the mic cable at the K3 connector end can be wound through a #31 core, if necessary. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Another K3 IOTA excursion to NA-065
NA-065 will surely have its share of operators. :) Me too! But will only get to operate part time this weekend. - 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Jul 22 14:24 , Dick Dievendorff sent: K6KR will be using a K3 (and generator power) on NA-065 (Whidbey Island). Hope to work you! 73 de Dick, K6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Another K3 IOTA excursion to NA-065
Great. There hasn't been a lot of NA-065 activity in recent years (otherwise I wouldn't have that nice IOTA certificate :^) ). I hope to get on from NA-065 also (from Bainbridge Island) with my K2, but won't have a lot of operating time. 73, Bob N7XY On Jul 22, 2010, at 3:14 PM, Greg - AB7R wrote: NA-065 will surely have its share of operators. :) Me too! But will only get to operate part time this weekend. - 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Jul 22 14:24 , Dick Dievendorff sent: K6KR will be using a K3 (and generator power) on NA-065 (Whidbey Island). Hope to work you! 73 de Dick, K6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR with a Twist
Lyle Johnson wrote: I just received my FLEX-1500 Nothing like a little intrigue for our list members :) Sorry to burden everyone with our internal dialog. I'm sure it isn't news to anyone that we talk about prospective products constantly (doesn't everyone?). In any case, back to our regularly-scheduled program 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - D104 Buffer Schematic
Paul, Last night, I built up the following D104 buffer circuit as discussed by Joe, W4TV. Thanks for the confirmation. I have found one other reference to this approach ... it is mentioned at the end of a QST Hints and Kinks article by K8RRH in June 2002. Although most of the article concerns the K0SF opamp preamp from the August 1999 QST, there is a passing reference to common source FET designs for both bias on the mic and conventional externally powered configurations. The K8RRH article shows 2N5484 JFETs which have performance characteristics similar to the MPF-102 (available at Radio Shack). Since my original goal was to create an electret replacement for use with both the K3 and computer sound cards, there is a similar approach for those using dynamic mics like the Heil HC4/HC5/HC6 elements. See: http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#icom by GM3SEK. The GM3SEK circuit is also mic powered ... but its input impedance is too low for use with a crystal element. An externally powered (e.g., Elecraft pin 6) version of the circuit can be found here: http://www.tkk.fi/Misc/Electronics/circuits/sbmicamp.html. The NPN circuit can be built using the 2N3904/MPS3904 also available at Radio Shack. Converting microphones for electret replacement operation has two advantages ... the K3 can be operated with low gain settings for lower sensitivity to external hum/noise and microphones/headsets can be interchanged without concern over changes to input sensitivity or bias. 73, ... Joe, W4TV On 7/22/2010 5:29 PM, Paul Christensen wrote: Last night, I built up the following D104 buffer circuit as discussed by Joe, W4TV. http://72.52.250.47/images/D104.jpg Joe's idea works very well. The difference between this circuit and other D104 buffer circuits as seen on the Internet is that it is powered directly from the K3's mic lead when the bias menu is activated. One benefit is that the circuit can be ported to a PC sound card. Another benefit for most builders: Only one part is required -- either a J201 or MPF-102 nFET transistor. When using the PC input configuration shown, I also had good results with a Samsung NC10 netbook. I tried the MPF-102 and J201, and each works well, although the J201 FET can be operated with an Ids current down to 0.5 mA. R89 in the K3 limits the Ids current. The minimum Ids spec for the MPF-102 is 2.0 mA but seems to perform the same, albeit with slightly less gain as expected. The D104 cartridge level is relatively high anyway and I found that in either configuration, the K3's mic menu could be set for the low gain setting. Also note the inclusion of the optional Rg and Rs resistors. My breadboarded pre-amp is stable without those components and the gate biases just fine. I'm also not too concerned about static here in Florida. At 15-cents ea., the FET is easy and cheap enough to change. Finally, if RFI becomes an issue, it may be helpful to experiment with a bifilar-wound, common-mode choke at the shielded cable entry, close to the FET. I would try that before attempting differential-mode abatement techniques (e.g, bypass caps to ground). Similarly, the mic cable at the K3 connector end can be wound through a #31 core, if necessary. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] N2CQ QRP Contest Calendar: July 24 - Aug 22, 2010
~ N2CQ QRP CONTEST CALENDAR July 24 - Aug 22, 2010 ~ Summer FOX Hunt - QRP 20M CW... QRP Contest! EDT: Each Tue, 9 PM to 1029 PM UTC: Each Wed, 0100z to 0229z Info: http://www.qrpfoxhunt.org/ ~ Islands On The Air Contest (CW/SSB) ... QRP Category Jul 24, 1200z to Jul 25, 1200z Rules: http://www.rsgbcc.org/hf/rules/2010/riota.shtml ~ Flight of the Bumblebees (CW) ... QRP Contest! EDT: Jul 25, 1300 to 1700 UTC: Jul 25, 1700z to 2100z Rules: http://adventure-radio.org/wiki/index.php?title=Main_Page ~ SKCC Sprint (Straight Key CW) ... QRP Awards Jul 28, z to 0200z Rules: http://www.skccgroup.com/sprint/sks/ ~ Adventure Radio Spartan Sprint (CW) *** QRP Event! *** Aug 3, 0100z to 0300z (First Monday 9 PM EDT) Info: http://adventure-radio.org/wiki/index.php?title=Main_Page ~ Ten-Ten QSO Party (PH) ... QRP Category Aug 7, 0001z to Aug 8, 2359z Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf ~ TARA Grid Dip Contest (PSK/RTTY) ... QRP Category Aug 7, z to 2400z Rules: http://www.n2ty.org/seasons/tara_grid_rules.html ~ EUROPEAN HF CHAMPIONSHIP (PH/CW) (EU work EU) Low Power Category Aug 7, 1200z to 2359z Rules: http://lea.hamradio.si/~scc/euhf/euhfcrules.htm ~ ARRL UHF Contest ... Low Power Category Aug 7, 1800z to Aug 8, 1800z Rules: http://www.arrl.org/august-uhf ~ North American QSO Party (CW) ... 100W Max. (/QRP noted on entry) Aug 7, 1800z to Aug 8, 0600z Rules: http://www.ncjweb.com/naqprules.php ~ SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category Aug 8, z to 2359z Rules: http://www.skccgroup.com/sprint/wes/ ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EDT: Aug 10, 8:30 PM to 10:30 PM UTC: Aug 11, 0030Z to 0230Z Rules: http://home.windstream.net/yoel/contests.html ~ CWops Mini-CWT Test (CW) ... QRP Category Aug 11, 1100z to 1200z and Aug 11, 1900z to 2000z and Aug 12, 0300z to 0400z Rules: http://www.cwops.org/onair.html ~ Worked All Europe DX Contest (CW) ... 100W category Aug 14, z to Aug 15, 2359z Rules: http://www.darc.de/referate/dx/xedcwr.htm ~ Maryland/DC QSO Party (SSB/CW) ... QRP Category Aug 14, 1600z to Aug 15, 0400z Aug 15, 1600z to Aug 15, 2359z Rules: http://mdcqsoparty.w3vpr.org/ ~ Feld Hell Club Sprint (Feld Hell) ... QRP Category Aug 14, 2000z to 2200z Rules: http://sites.google.com/site/feldhellclub/Home ~ Rookie Rounup (SSB) 100W max Aug 15, 1800Z to 2359z Rules: http://www.arrl.org/rookie-roundup ~ RUN FOR THE BACON (CW) *** QRP CONTEST *** EDT: Aug 15, 9 PM to 11 PM UTC: Aug 16, 0100z 0300z Rules: http://www.fpqrp.com/ ~ SARTG WW RTTY Contest ... Low Power Category Aug 21, z to 0800z Aug 21, 1600z to 2400z Aug 22, 0800z to 1600z Rules: http://www.sartg.com/contest/wwrules.htm ~ QRP ARCI Silent Key Memorial Contest (CW) *** QRP CONTEST! *** Aug 21, 1500z to 1800z Rules: http://www.qrparci.org ~ North American QSO Party (SSB) ... 100W Max. (/QRP noted on entry) Aug 21, 1800z to Aug 22, 0600z Rules: http://www.ncjweb.com/naqprules.php ~ NJ QSO Party (CW/SSB) Aug 21, 2000z to Aug 22, 0700z Aug 22, 1300z to Aug 23, 0200z Rules: http://www.qsl.net/w2rj/ ~ Thanks to SM3CER, WA7BNM, N0AX(ARRL), VA3JFF G4GXL (QRPARCI) N2APB (AmQRP), WB3AAL (EPAQRP) and others for assistance in compiling this calendar. If you wish to subscribe to the Calendar, send an e-mail to n...@arrl.net Please forward the contest info you sponsor to n...@arrl.net and we will post it and give it more publicity. Anyone may use this N2CQ QRP Contest Calendar for your website, newsletter, e-mail list or other media as you choose. (Include a
Re: [Elecraft] SDR with a Twist
Lyle Johnson wrote: I just received my FLEX-1500 Nothing like a little intrigue for our list members :) Gawd, I Love/Hate you guys... Keep the ideas flowing, I'll keep buying the results. Signed, N1RX Confirmed Elecraft groupie... (we may need some kind of 12-step program...) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR with a Twist
Gosh I though someone had filed for documents under the Freedom of Information Act. But whatever, this sounds like a good scheme. You're right about PwrSDR being a resource hog. I had to get a dual core cpu just to run LP Pan smoothly. And yes, Flex's QSK will never fly. Which reminds meAny progress on QSK mode and RIT both running at the same time (K3)? Steve N4LQ - Original Message - From: Bruce Beford bruce.bef...@myfairpoint.net To: elecraft@mailman.qth.net Sent: Thursday, July 22, 2010 7:10 PM Subject: Re: [Elecraft] SDR with a Twist Lyle Johnson wrote: I just received my FLEX-1500 Nothing like a little intrigue for our list members :) Gawd, I Love/Hate you guys... Keep the ideas flowing, I'll keep buying the results. Signed, N1RX Confirmed Elecraft groupie... (we may need some kind of 12-step program...) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] So-called UHF connectors...
Tom W8JI wrote: insidebut I do think that the issue with standard mud type UHFs is with the durability of the dielectric, not with the impedance bump, at HF and even low VHF frequencies. A long time ago, the USAF told me that N-connectors, when screwed down tightly [with fingers, not tools] were essentially weather-proof. I don't think that included immersion. Once saw a PL-259 in northern AK that was split open ... I guess water got into it and it froze [happens around the Arctic Circle :-)] 73, Fred K6DGW - Northern California Contest Club - CU in the 2010 Cal QSO Party 2-3 Oct 2010 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QRQ mode with RIT
Steve Ellington wrote: Any progress on QSK mode and RIT both running at the same time (K3)? Not yet. But I did the math and it looks like I can provide at least a few hundred Hz (+/-) of RIT in QRQ mode, or what we call CW+. Thanks, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR with a Twist
Lyle wrote: Low risk way to evaluate a lot of the technology for the KX2 and possibly the K4 IF section (QSD/QSE, no tune BPF and LPF, Si570 Synth, switching regulator A K4 in the worksPlease tell me more :-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR with a Twist
Dan wrote: Lyle wrote: Low risk way to evaluate a lot of the technology for the KX2 and possibly the K4 IF section (QSD/QSE, no tune BPF and LPF, Si570 Synth, switching regulator A K4 in the worksPlease tell me more :-) - Show quoted text - Uh Ohthis is gonna get real interestingnow what what was that I read about cat's and bags N stuff? H I'm gonna lay down, I feel a headache coming...:-)) Gary On Fri, Jul 23, 2010 at 9:24 AM, Dan Copeland n...@mchsi.com wrote: Lyle wrote: Low risk way to evaluate a lot of the technology for the KX2 and possibly the K4 IF section (QSD/QSE, no tune BPF and LPF, Si570 Synth, switching regulator A K4 in the worksPlease tell me more :-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 For everything else there's Mastercard!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Quadruplets
Dan Copeland wrote: Lyle wrote: Low risk way to evaluate a lot of the technology There are no new transceiver projects underway at this time. Lyle's discussion was speculative, looking at possible directions for future projects. We have our hands full fleshing out the Elecraft quadruplets: K3 P3 KPA500 KAT500 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] MH2 Mic arrived DUH!
Hi ALL I got my MH2 mic or the k2 and there was no resistor in the box ACK! I know its a 5.6K Green Blue red, and its a 1/4 watt but is there a better choice? and should I get a gold or a silver tolerance? Off to the telephone shack tomorrow -Neil __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] MH2 Mic arrived DUH!
Neil, The resistance is not critical, so if you have a resistor (of any tolerance) between 4.7k and 6.8k on hand use that. Did you have a tan envelope on the package with the 8 jumpers for the microphone configuration header? If so, look very carefully in that envelope, the resistor can get twisted inside and will not fall out - tear the envelope open if necessary. 73, Don W3FPR Neil Shubert wrote: Hi ALL I got my MH2 mic or the k2 and there was no resistor in the box ACK! I know its a 5.6K Green Blue red, and its a 1/4 watt but is there a better choice? and should I get a gold or a silver tolerance? Off to the telephone shack tomorrow -Neil __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Repair backlog catch-up ...
Rene put in a few weekends to get things down to that... The guy's dedicated! Fun guy to talk to... But you end up finding a lot of guys like that in this hobby! Thanks Rene! ~Brett (N7MG) On Thu, 2010-07-22 at 14:34 -0400, w0...@aol.com wrote: This week I sent my K3 for a factory update inasmuch as 4500 K3s have been built since mine. The pleasant surprise was being told July 19 by Elecraft's Ms. Madelyn the turn-around would be two weeks. Thanks, Elecraft crew, one and all! Bill, W0WOI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K4 and KX2
Wayne and Eric I'd like to send in my deposits NOW so I can then have the right to complain about how long delivery is taking. Where do I send my check? de Doug KR2Q tongue firmly in cheek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Deposits on hypothetical future products
DOUGLAS ZWIEBEL wrote: Wayne and Eric I'd like to send in my deposits NOW so I can then have the right to complain about how long delivery is taking. Doug, There's nothing to put a deposit on, and even if it were, it would be so far out that you'd have to take inflation into account :) Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] MH2 Mic arrived DUH!
Don, Thank you for the help, and I did just that, tore the envelope up and it still wasn't there. Radio is waiting, its ok, its been weeks, it will wait 1 more day. -Neil On Thu, Jul 22, 2010 at 8:29 PM, Don Wilhelm w3...@embarqmail.com wrote: Neil, The resistance is not critical, so if you have a resistor (of any tolerance) between 4.7k and 6.8k on hand use that. Did you have a tan envelope on the package with the 8 jumpers for the microphone configuration header? If so, look very carefully in that envelope, the resistor can get twisted inside and will not fall out - tear the envelope open if necessary. 73, Don W3FPR Neil Shubert wrote: Hi ALL I got my MH2 mic or the k2 and there was no resistor in the box ACK! I know its a 5.6K Green Blue red, and its a 1/4 watt but is there a better choice? and should I get a gold or a silver tolerance? Off to the telephone shack tomorrow -Neil __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QRQ mode with RIT
Few hundred hertz would do it for me just fine. 73, Guy. On Thu, Jul 22, 2010 at 7:26 PM, Wayne Burdick n...@elecraft.com wrote: Steve Ellington wrote: Any progress on QSK mode and RIT both running at the same time (K3)? Not yet. But I did the math and it looks like I can provide at least a few hundred Hz (+/-) of RIT in QRQ mode, or what we call CW+. Thanks, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QRQ mode with RIT
Few hundred hertz would do it for me just fine. Ditto. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Feature Request - Stopping CW Memory Playback with PTT
I have recently entered into the world of CW and participated in my first contest using both SSB and CW modes. I noticed that you cannot stop the CW memory playback by activating the PTT (either from a microphone attached to the front panel or a footswitch plugged in the rear). It could only be stopped by touching the paddle. Could this be implemented in a future firmware version? There is also the possibility that there may be a very good reason not to. Andy VK4KY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Feature-Request-Stopping-CW-Memory-Playback-with-PTT-tp5328156p5328156.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Anxiously awaiting news on first customer ship and manual for P3
Can hardly wait as the time must be near - hope hope. 73, de Jim KG0KP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Off Topic Hearing Aids
My dad recently got fitted with new hearing aids, and is a ham. They are here: http://www.phonak.com/com/b2c/en/products/accessories/communication/icom/ove rview.html He did not get the iCOM unit yet, but will probably soon. Any hints, ideas, etc to help get him back on the air? Since this unit uses Bluetooth, any ideas on a blue tooth device to connect to an Icom 706? I am about a year or two away from hearing aids myself. Too much jet noise. Mike AI4NS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] W7LD new K3 kit serial 44 93 arrived...
Lucky Dog has a new K3 kit serial 4493. I ordered it Friday, It was shipped Monday, and arrived at my QTH Wednesday. Wow! 73 de Jack / W7LD / Lucky Dog __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] W7LD new K3 kit serial 44 93 arrived...
Snip Lucky Dog has a new K3 kit serial 4493. I ordered it Friday, It was shipped Monday, and arrived at my QTH Wednesday. Wow! 73 de Jack / W7LD / Lucky Dog End snip Congratulations from Instant Coffee (AE6IC.) Hopefully I'll be getting a P3 shortly. 73, Fred, K3 2241 Do or Do-not. There is no 'Try'... ~ Yoda __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] LP-Pan and Rocky (was: SDR with a Twist)
On 07/23/2010 01:17 AM, Steve Ellington wrote: Gosh I though someone had filed for documents under the Freedom of Information Act. But whatever, this sounds like a good scheme. You're right about PwrSDR being a resource hog. I had to get a dual core cpu just to run LP Pan smoothly. Can Rocky be used with LP-PAN? Jon LA4RT And yes, Flex's QSK will never fly. Which reminds meAny progress on QSK mode and RIT both running at the same time (K3)? Steve N4LQ - Original Message - From: Bruce Befordbruce.bef...@myfairpoint.net To:elecraft@mailman.qth.net Sent: Thursday, July 22, 2010 7:10 PM Subject: Re: [Elecraft] SDR with a Twist Lyle Johnson wrote: I just received my FLEX-1500 Nothing like a little intrigue for our list members :) Gawd, I Love/Hate you guys... Keep the ideas flowing, I'll keep buying the results. Signed, N1RX Confirmed Elecraft groupie... (we may need some kind of 12-step program...) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
