[Elecraft] On new synthesizer installation
Fred Jensen wrote: My new synthesizer hasn't arrived yet, but I'm getting the impression that installation is pretty straightforward. What isn't going to be straightforward is sorting out all the wireless stuff behind the rack. Then Don Wilhelm wrote: A good yearly Spring cleaning may be the only solution to the wire clutter in a 'wireless' ham station. Some take cleaning to a whole 'nuther level, Don. Here in the far West, we've heard rumors of a reclusive former paramilitary man who can break down a loaded K3 in ten minutes, right down to the last chassis screw. He does it blindfolded, over a light lunch. Once the modules are neatly laid out on a deerskin antistatic mat, he'll polish the gold-plated connector contacts on each one to a high luster, using tools handed down from a distant cousin who cut his teeth on the K2. Discretes are dusted, toroids untilted, ICs inspected. He then reassembles the rig with crisp assurance and a steady hand. Bet my noise floor dropped by a dB, he might say, with a wink, before launching into a fish tale about DX on a dummy load, fueled by the strongest microbrew this side of Fort Tuthill. So, Fred, when your new synthesizers arrive, take your time. Embrace the kinesthetic wonder that is TMP cable installation. But when you do it for the very first time, remember: this path has been blazed before. Heed the voice of the sage. Read the manual. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Blue trimmer capacitors - no more available
Each affected product will be the subject of an associated errata sheet and a complete set of the substitute parts. Nothing will be left to the builder's imagination. Wayne N6KR On Mar 7, 2015, at 4:07 PM, Don Wilhelm w3...@embarqmail.com wrote: All, I would like to add that the non-availability of those 1-40pF trimmer capacitors impacts more Elecraft products than just the discontinued KFL1-4. They were used as the nulling capacitors in all the Elecraft integrated wattmeters, so for that application, the KAT2, KAT1, KXAT1, KAT100, and KPA100 have been impacted. The proper replacement for those wattmeter nulling capacitors is a 5-15pF trimmer E540012. Also impacted are the K2 trimmers used in the bandpass filters. The 5-15pF trimmers (E540012) work fine in the 10/12 meter bandpass filter, but do not have sufficient capacity for the 15/17 meter bandpass where a 7-25pF trimmer (Elecraft PN 540011) is the substitute. That fact requires a rewrite of the K2 manual stating that the red bodied trimmer capacitors are to be used at C32 and C34 while the white bodied trimmers are to be used at C44 and C46. That information will be good until the manufacturer decides to change the capacitor body color to something different (which is a constant exposure when trying to identify parts by the body colors). What I am saying is that the impact of the loss of these wide range temperature stable trimmers is not confined to the KFL1-4 board, but has a wide ranging impact not only for new Elecreaft kits, but for those wanting parts replacements. One must communicate the use to pa...@elecraft.com (and sales) to obtain the correct replacement trimmer capacitor. The loss of that wide range trimmer capacitor is being felt in many areas of the K1, K2 and KX1 products. The impact is greater than just the loss of the KFL1-4 option. 73, Don W3FPR __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] On new synthesizer installation
RTFM? You cut us to the bone. Know where everything goes and exactly how in advance? What challenge to that? 73, Guy On Sunday, March 8, 2015, Wayne Burdick n...@elecraft.com wrote: Fred Jensen wrote: My new synthesizer hasn't arrived yet, but I'm getting the impression that installation is pretty straightforward. What isn't going to be straightforward is sorting out all the wireless stuff behind the rack. Then Don Wilhelm wrote: A good yearly Spring cleaning may be the only solution to the wire clutter in a 'wireless' ham station. Some take cleaning to a whole 'nuther level, Don. Here in the far West, we've heard rumors of a reclusive former paramilitary man who can break down a loaded K3 in ten minutes, right down to the last chassis screw. He does it blindfolded, over a light lunch. Once the modules are neatly laid out on a deerskin antistatic mat, he'll polish the gold-plated connector contacts on each one to a high luster, using tools handed down from a distant cousin who cut his teeth on the K2. Discretes are dusted, toroids untilted, ICs inspected. He then reassembles the rig with crisp assurance and a steady hand. Bet my noise floor dropped by a dB, he might say, with a wink, before launching into a fish tale about DX on a dummy load, fueled by the strongest microbrew this side of Fort Tuthill. So, Fred, when your new synthesizers arrive, take your time. Embrace the kinesthetic wonder that is TMP cable installation. But when you do it for the very first time, remember: this path has been blazed before. Heed the voice of the sage. Read the manual. 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 javascript:; This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2av@gmail.com javascript:; __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 SUB-RX works , but not in diversity mode
Problem solved to my shame. I forgot to install the coax cable from J4 of the auxiliary KSYN3A to J2 of the main KSYN3A according to page 14 at the KSYN3A manual. Thanks to Wayne for pointing me to my failure. So not the antenna connection was lost but the SUBRX simply got no LO signal. Compunctious but nevertheless happy because I am now able to enjoy diversity receiving using my old RS active antenna with the K3. -- 73, Klaus DF1TL __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 voltage indicator
Folks I suspect that may have been asked before, so forgive me if it has, but I need to know what the typical voltage readings are observed (on the K3 voltage indicator) when a) On receive? b) With say 10w TX power? c) With 100W TX power? Using a DMM, I can see that my 13.8volt linear PSU seems to drop 0.1volt when going from receive to the 100W TX level - yet the display indicator on the K3 goes from 13.7v (receive) to 13.3v (10W) to 12.9v (100W) Is this typical? 73 Graham G4FNL __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
The part we used was Sprague-Goodman GCL4 (now obsolete). These are 1-40 pF with a very low temperature coefficient. Trimmers still available have TCs that are 2 to 4 times worse, and have a higher minimum C. These are fine for applications where small drifts in C with temperature don't significantly alter the passband of the filter (e.g., in the KFL1-2, K2, and K3). But the KFL1-4 requires very high-Q filters in order to remove mixing products from both the pre-mixer and transmit mixer stages. The low minimum-C is needed for the higher-band filters. We found that if we used trimmers with a worse TC on the KFL1-4, then power output would temporarily drop (in some cases by 50-70%) when the K1 was operated at an ambient temperature quite different from that at time of alignment. That would be unacceptable for a rig often used outdoors. 73, Wayne N6KR On Mar 7, 2015, at 8:06 AM, Wes (N7WS) w...@triconet.org wrote: On 3/6/2015 9:33 PM, Don Wilhelm wrote: The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4 manual. Is there a commercial P/N specified for the capacitors? __ 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 Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
Gil, When I bought my K3-100, the only thing I added was the 400 Hz filter, and that seemed to work out well for me. Later, I added the KXV3A and the 13 kHz filter. 73, Art WB8ENE On Mar 7, 2015 11:52 AM, Richard Gillingham w...@hotmail.com wrote: I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to valvetb...@gmail.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 Message delivered to arch...@mail-archive.com
[Elecraft] Latest MCU and DSP
I've not been active in some time with my KX-3. Last firmware update was MCU 1.61 and DSP 1.23. What are the latest (non-Beta) releases available? Also, does anyone have recommendations on a good desk mic for the KX-3? And any recommendations for an interface to allow keying of an SB-200 amplifier? I've tried to keep up with all of the comments over the past 1.5 years, but things change as the KX-3 has evolved and individual experiences may differ today from those in the past. Thanks in advance for any info. 73 ChuckW4MIL チャーリー ミルトン __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KSYN3A Install
And also make sure you download and follow the revised instructions and Errata from the Elecraft website. Do NOT follow the printed instructions shipping with the boards (unless they match the website revisions). Note also that if you have the 2-meter phase-lock option, the REF OUT cable is removed from the 2-meter module and not used. 73, Kent K9ZTV On 3/6/2015 6:37 PM, someone wrote: Make sure you connect the cable to the correct port on the ksyn3a. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
They've had massive orders and ran out (backordered). The next batch was expected to be shipped ASAP, or next week for my order. The delay was 5-10 BUSINESS days (two weeks). You're in line, be patient. :) Rick wa6nhc On 3/7/2015 7:10 AM, David Cole wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power cord for KPA500
Only question I would have is the gauge wire used in the 220 volt cord. Is there any difference between it and the 120 V power cord? 73 de Brian/K3KO On 3/7/2015 19:34 PM, W0MU Mike Fatchett wrote: The one that comes with the KPA500 is a very nice heavy duty cord. I would not trust some of those super cheap computer cords. Why not remove the 220 end and put a decent 110v plug on the cord? Mike W0MU On 3/7/2015 12:24 PM, Ian - Ham wrote: My father-in-law (KC4YBO) just bought a KPA500 off an estate sale. It is currently wired for 220 VAC. He will convert it to 115 VAC for use in our shack. Is there any reason he can't use an old computer power cord we have lying around for the KPA500, if it will fit the amp's power block? Thanks and 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com mailto:km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to w...@w0mu.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 Message delivered to als...@nc.rr.com - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5751 / Virus Database: 4299/9248 - Release Date: 03/07/15 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power cord for KPA500
Standard 18-gauge computer cords can get pretty hot with the KPA500. They carry a lot of current (over 10 amps at 117V), and six feet of 18-gauge has surprisingly substantial resistance. What you really want is a heavy-duty power cord such as is used with servers. The heavy duty cords that come with the Dell servers are 14 gauge and work quite well. - Jack B, W6FB On Mar 7, 2015, at 11:34 AM, W0MU Mike Fatchett w...@w0mu.com wrote: The one that comes with the KPA500 is a very nice heavy duty cord. I would not trust some of those super cheap computer cords. Why not remove the 220 end and put a decent 110v plug on the cord? Mike W0MU On 3/7/2015 12:24 PM, Ian - Ham wrote: My father-in-law (KC4YBO) just bought a KPA500 off an estate sale. It is currently wired for 220 VAC. He will convert it to 115 VAC for use in our shack. Is there any reason he can't use an old computer power cord we have lying around for the KPA500, if it will fit the amp's power block? Thanks and 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com mailto:km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to w...@w0mu.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 Message delivered to jackbrin...@me.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
I am certain there used to be a commercial part number, but the ones that were used (the blue trimmer caps) are no longer available from any source unless someone has a stockpile of them that might serve for replacement purposes (I don't know of any sources). Discontinued components are becoming a more frequent problem, particularly with thru-hole components. The manufacturer see orders shrinking and determines that it is not economical to continue the manufacturing line. That forces the higher assembly products in turn to be either re-designed or also discontinued. While that is happening more frequently with thru-hole parts, it is also happening with lesser used SMD components, particularly specialty ICs. That is just the way of the world. The KFL1-4 is a 14 year old product. Those that currently exist will likely work fine for another 20 or more years if not abused, but new ones are no longer available. 73, Don W3FPR On 3/7/2015 11:06 AM, Wes (N7WS) wrote: On 3/6/2015 9:33 PM, Don Wilhelm wrote: The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4 manual. Is there a commercial P/N specified for the capacitors? __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
You may note on the Sherwood list that the difference between the 400 and 200 (5 pole) Hz filters is 3 db for close in spacing. If you DX or contest, that could make a difference. I have the 400 (8 pole) in both receivers, but I'm now wondering about changing to the 200 filters 5 pole or 250 8 pole (I'm adding the new synth, when the backorder is fulfilled). An edge is an edge but I suspect the 3 db is a rather bare edge. There is filter choice commentary on the Elecraft site, updated since I made my purchase. Consider that required reading. Can someone who has made the change comment? I can't do a comparison, all filters slots are filled, both receivers matched. If you want to use the K3 on local 6M repeaters, the 13 KHz filter should be added (good for AM too). Adding the KXV3a gives you other useful options (required for either preamp). If you operate digital (JT modes in particular), the TCXO option helps. The KDVR3 saves your voice if you contest or DX. If your computer does not have a serial port, the Elecraft cable (comes with, make your choice which flavor you want) is fine. Along that line, getting a multiport USB dongle is simpler in the long run (I have a 4 port, so one USB controls everything K line). If you want to operate on the experimental band, the KBPF3 is required. If you ever want to take the K3 someplace else (field day, portable, mobile in the RV) the tuner would be handy to have; else get the KAT500 (later? also in preparation for an amp; life is too short for QRP and you can always turn the power output down). Rick's rule of radio: Buy ALL the options you THINK you might EVER want at the original time of purchase because the budget will never be there to add on. However Elecraft is the one exception, mods and updates are generally simple. I'd strongly suggest looking though the options and consider how YOU operate, how you intend to grow and if they'd be useful now (buy) or later (budget). The answer to your question becomes self-evident. Since you can add more later if your mode of operation changes, you can adapt (building a budget to get you there). Caveat: If you're new to HF, contesting or DXing, having the receiver dialed in for the WORST operating conditions is your best advantage... close in strong signals are common in CW (your best DXing mode) and digital. Welcome to the Elecraft family, Rick wa6nhc (no relation to Elecraft except as a happy user) __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
This would only be enough for about 19 boards. And the price is likely to be very high, knowing the surplus market. 73, Wayne N6KR On Mar 7, 2015, at 8:57 AM, Bob wb4...@gmail.com wrote: GCL4 http://www.1sourcecomponents.com/availability/SPRAGUE--GCL4.htm311 SPRAGUE[image: Request For Quote] http://www.1sourcecomponents.com/search/results.htm?base=GCL4%0D%0AGo.x=22Go.y=13Go=Gosubmit=Start+Search#rfq_form_top 311 available at 1 source electronics. Of course that would only make a few boards. And no telling if they are really available and at what price. But that might be enough to build a few spares for inventory. http://www.1sourcecomponents.com/ On Sat, Mar 7, 2015 at 11:37 AM, Don Wilhelm w3...@embarqmail.com wrote: I am certain there used to be a commercial part number, but the ones that were used (the blue trimmer caps) are no longer available from any source unless someone has a stockpile of them that might serve for replacement purposes (I don't know of any sources). Discontinued components are becoming a more frequent problem, particularly with thru-hole components. The manufacturer see orders shrinking and determines that it is not economical to continue the manufacturing line. That forces the higher assembly products in turn to be either re-designed or also discontinued. While that is happening more frequently with thru-hole parts, it is also happening with lesser used SMD components, particularly specialty ICs. That is just the way of the world. The KFL1-4 is a 14 year old product. Those that currently exist will likely work fine for another 20 or more years if not abused, but new ones are no longer available. 73, Don W3FPR On 3/7/2015 11:06 AM, Wes (N7WS) wrote: On 3/6/2015 9:33 PM, Don Wilhelm wrote: The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4 manual. Is there a commercial P/N specified for the capacitors? __ 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 Message delivered to wb4...@gmail.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 Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
GCL4 http://www.1sourcecomponents.com/availability/SPRAGUE--GCL4.htm311 SPRAGUE[image: Request For Quote] http://www.1sourcecomponents.com/search/results.htm?base=GCL4%0D%0AGo.x=22Go.y=13Go=Gosubmit=Start+Search#rfq_form_top 311 available at 1 source electronics. Of course that would only make a few boards. And no telling if they are really available and at what price. But that might be enough to build a few spares for inventory. http://www.1sourcecomponents.com/ On Sat, Mar 7, 2015 at 11:37 AM, Don Wilhelm w3...@embarqmail.com wrote: I am certain there used to be a commercial part number, but the ones that were used (the blue trimmer caps) are no longer available from any source unless someone has a stockpile of them that might serve for replacement purposes (I don't know of any sources). Discontinued components are becoming a more frequent problem, particularly with thru-hole components. The manufacturer see orders shrinking and determines that it is not economical to continue the manufacturing line. That forces the higher assembly products in turn to be either re-designed or also discontinued. While that is happening more frequently with thru-hole parts, it is also happening with lesser used SMD components, particularly specialty ICs. That is just the way of the world. The KFL1-4 is a 14 year old product. Those that currently exist will likely work fine for another 20 or more years if not abused, but new ones are no longer available. 73, Don W3FPR On 3/7/2015 11:06 AM, Wes (N7WS) wrote: On 3/6/2015 9:33 PM, Don Wilhelm wrote: The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4 manual. Is there a commercial P/N specified for the capacitors? __ 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 Message delivered to wb4...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
On Sat,3/7/2015 9:11 AM, Mike Markowski wrote: If you're a cw operator, I make heavy use of the 400 Hz filter. Not too narrow (usually), and not too wide. There's a potential misunderstanding here. The plug-in filters are ROOFING filters, and are there to protect the IF from overload by VERY strong signals. The IF bandwidth is NOT dependent on those filters. Rather, the IF in a K3, like the KX3, is filtered by DSP. Those filters DO add to the selectivity of the K3 by virtue of a process called cascading, whereby they make the K3's filter skirts fall off more sharply when the roofing filter is the same bandwidth or narrower than the DSP IF. So -- you DO probably need a CW roofing filter if you're a contester, or if you have a close-in neighbor who is active on the same bands when you are. For general operation, the IF is enough. 73, Jim 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
Or, get the 500Hz 8-pole from Inrad... 73, Ross N4RP On 3/7/2015 12:29 PM, Joe Subich, W4TV wrote: If you operate any CW or RTTY you will want the 400 Hz filter. IMO, that's the best all around filter - particularly if you have any idea of adding the KRX3 in the future since you will not need to try to match five-pole filter center frequencies after the fact. -- FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.” __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
The 400 Hz filter is marginally better for RTTY and no worse for CW if there are strong signals close enough that a narrow filter is needed to prevent window overload or AGC pumping. 73, ... Joe, W4TV On 2015-03-07 12:52 PM, Ross Primrose wrote: Or, get the 500Hz 8-pole from Inrad... 73, Ross N4RP On 3/7/2015 12:29 PM, Joe Subich, W4TV wrote: If you operate any CW or RTTY you will want the 400 Hz filter. IMO, that's the best all around filter - particularly if you have any idea of adding the KRX3 in the future since you will not need to try to match five-pole filter center frequencies after the fact. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
If you want general coverage or VLF below the BC bands, I believe you'll need the KBPF3 filter. --Dave W8OV On 3/7/2015 10:42 AM, Richard Gillingham wrote: I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to w...@verizon.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
Many thanks for the recommendations. The consensus is overwhelmingly for the 400 KHz filter. I’m primarily a DXer, and most of what I work is on CW. So… That will be on the list. Thanks again to all 73 Gil, W1RG From: Richard Gillingham Sent: Saturday, March 7, 2015 11:52 AM To: elecraft@mailman.qth.net I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to w...@hotmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
Hi, Thanks for the info! That answers why the delay... Glad they are selling lots of them! Thank you for the info!! -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sat, 2015-03-07 at 09:54 -0800, Rick WA6NHC wrote: They've had massive orders and ran out (backordered). The next batch was expected to be shipped ASAP, or next week for my order. The delay was 5-10 BUSINESS days (two weeks). You're in line, be patient. :) Rick wa6nhc On 3/7/2015 7:10 AM, David Cole wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? __ 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 Message delivered to d...@nk7z.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 Message delivered to arch...@mail-archive.com
[Elecraft] Contemplating Purchase of K3
I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
I would recommend at least a filter or two. I believe the only filter that comes with the radio is a 2.7 KHz. If you operate CW, you'll want at least one for narrow cw, say maybe 400 or 500Hz. IF you're purely an SSB op, you might consider the 1.8KHz filter for crowded band conditions or contesting. Speaking of filters, you can't operate 6-meter FM without the FM filter. Other than that, you can't go wrong with a basic configuration and add-on later. That's exactly what I did. But I didn't have my unit long before I ordered the KXV3A, which is required for the panadapter, and also provides an auxiliary rx antenna input. 73 and Good luck! -Chris K1AY On Sat, Mar 7, 2015 at 11:42 AM, Richard Gillingham w...@hotmail.com wrote: I'm thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I'll assume I won't need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I'll get the interface cable to the KAT500... With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to challi...@gmail.com -- Life is like Linux - it never stands still. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
I would still consider adding the 100W internal ATU for a couple of reasons. If your KAT500 goes out and you have to send it back to the mother ship for repair, you'll still be able to use any antenna you want. You won't be forced into finding resonant antennas for the bands you want to operate. Also, it will be much easier to operate portable (I know, you have the KX3 :-) ) if you ever want to do so. And, the K3 is a great rig for operating portable if you want more juice than the KX3 offers. Just ask anyone who's been on the recent DXpeditions that used the K-Line. Hope this is helpful. 73 de, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Gillingham Sent: Saturday, March 7, 2015 11:42 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Contemplating Purchase of K3 I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to km4ik@gmail.com --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
I find that I nearly always have the IF set to 200-250 Hz for CW, and 400 Hz for RTTY. In other words, I rarely use the 400 Hz filter. Whilst the 250 Hz filter works for strong signals on RTTY, the group delay increases rapidly as one approaches the knee of the response. That group delay has a significant impact on RTTY and causes a loss of several dB snr on weak signals that can hardly afford the added hit. The main purpose of the *roofing filter* is to protect the analog to digital converter from overload by multiple strong signals at the same time (and to prevent the hardware AGC from activating). The difference in selectivity between the 400 Hz (435 Hz @ -6dB) and 250 Hz (370 Hz @ -6dB) - see http://www.elecraft.com/K3/K3_filter_plots.htm is only some 30 Hz on each side of the passband. If a strong signal is close enough to be in that 30 Hz a slight tweak of the shift control will move him out. Even then, it is entirely likely that any signal close enough to cause problems in the 400 Hz filter will have phase noise, splatter and/or key clicks that fall inside the passband of *either* filter and can't be rejected in any case. If one is looking for the most efficient combination of IF filters, consider 400 Hz (or 500 Hz if RTTY is not a priority) with the 200 Hz (5 pole) as the 200 Hz filter is tighter than the 250 Hz filter to at least -50 dB on the skirts (and the 200 Hz filter is less expensive than the 250 Hz filter). 73, ... Joe, W4TV On 2015-03-07 1:43 PM, Jim Brown wrote: On Sat,3/7/2015 10:26 AM, Rick WA6NHC wrote: I'm now wondering about changing to the 200 filters 5 pole or 250 8 pole (I'm adding the new synth, when the backorder is fulfilled). An edge is an edge but I suspect the 3 db is a rather bare edge. I started with 400 Hz, then added 250 Hz. I've defined the 400 Hz filter as 450 Hz (so that it switches in at 450 Hz) and the 250 Hz filter as 350 Hz. Both are 8 pole filters. I find that I nearly always have the IF set to 200-250 Hz for CW, and 400 Hz for RTTY. In other words, I rarely use the 400 Hz filter. It should be noted that the 250 Hz filter actually measures closer to 325-350 Hz. Since they're the same price, I'd buy the 250 Hz filter if I was going to buy one at all. 73, Jim 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 Message delivered to li...@subich.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 Message delivered to arch...@mail-archive.com
[Elecraft] KX1 Info Cards
I am new Elecraft KX1 user. KX1 is a great solution!!! Does anybody have a KX1 Info Cards? It is small data sheets with the basic settings of KX1. Could you share them with me? Thank you!! Anton, R2ACY, 73! __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
Gil, If you're a cw operator, I make heavy use of the 400 Hz filter. Not too narrow (usually), and not too wide. 73, Mike ab3ap On 03/07/2015 11:42 AM, Richard Gillingham wrote: I’m thinking about purchasing the K3-100 kit. [...] With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
On 2015-03-07 11:42 AM, Richard Gillingham wrote: I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? If you operate any CW or RTTY you will want the 400 Hz filter. IMO, that's the best all around filter - particularly if you have any idea of adding the KRX3 in the future since you will not need to try to match five-pole filter center frequencies after the fact. 73, ... Joe, W4TV On 2015-03-07 11:42 AM, Richard Gillingham wrote: I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
If you're a serious CW op you'll want a narrow-bandwidth crystal filter. The stock SSB filter is fine for casual CW operation. If your computer doesn't have an RS-232 port, you'll need a KUSB USB-to-RS232 adapter so you can do firmware updates. Other than that, a bare-bones K3 is quite sufficient. Alan N1AL On 03/07/2015 08:42 AM, Richard Gillingham wrote: I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to n...@sonic.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Latest MCU and DSP
Hi Chuck: You should download the latest version of the KX3 utility (for your computer's OS)... and then when you connect the rig's USB or RS-232 cable and launch the utility, you can then retrieve the latest production release of firmware for the KX3. However, if you have not yet done so, you should make a copy of your -particular- rig's settings. Elecraft recommends doing that the very first time you launch the utility. I presume you have already done that with your KX3. Don't forget that there a several new features that must be enabled via the rig's menu, and that you need to power cycle the rig after updates, to have the new firmware take effect. I'm a QRP guy, so I don't have any hints regarding using an external amp. :) I'm sure others will respond. 73 de Ray K2ULR KX3 #211 On Mar 7, 2015, at 12:24 PM, W4MIL via Elecraft wrote: I've not been active in some time with my KX-3. Last firmware update was MCU 1.61 and DSP 1.23. What are the latest (non-Beta) releases available? Also, does anyone have recommendations on a good desk mic for the KX-3? And any recommendations for an interface to allow keying of an SB-200 amplifier? I've tried to keep up with all of the comments over the past 1.5 years, but things change as the KX-3 has evolved and individual experiences may differ today from those in the past. Thanks in advance for any info. 73 ChuckW4MIL チャーリー ミルトン __ 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 Message delivered to raysil...@verizon.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
On Sat,3/7/2015 10:26 AM, Rick WA6NHC wrote: I'm now wondering about changing to the 200 filters 5 pole or 250 8 pole (I'm adding the new synth, when the backorder is fulfilled). An edge is an edge but I suspect the 3 db is a rather bare edge. I started with 400 Hz, then added 250 Hz. I've defined the 400 Hz filter as 450 Hz (so that it switches in at 450 Hz) and the 250 Hz filter as 350 Hz. Both are 8 pole filters. I find that I nearly always have the IF set to 200-250 Hz for CW, and 400 Hz for RTTY. In other words, I rarely use the 400 Hz filter. It should be noted that the 250 Hz filter actually measures closer to 325-350 Hz. Since they're the same price, I'd buy the 250 Hz filter if I was going to buy one at all. 73, Jim 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 Message delivered to arch...@mail-archive.com
[Elecraft] Power cord for KPA500
My father-in-law (KC4YBO) just bought a KPA500 off an estate sale. It is currently wired for 220 VAC. He will convert it to 115 VAC for use in our shack. Is there any reason he can't use an old computer power cord we have lying around for the KPA500, if it will fit the amp's power block? Thanks and 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com mailto:km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power cord for KPA500
The one that comes with the KPA500 is a very nice heavy duty cord. I would not trust some of those super cheap computer cords. Why not remove the 220 end and put a decent 110v plug on the cord? Mike W0MU On 3/7/2015 12:24 PM, Ian - Ham wrote: My father-in-law (KC4YBO) just bought a KPA500 off an estate sale. It is currently wired for 220 VAC. He will convert it to 115 VAC for use in our shack. Is there any reason he can't use an old computer power cord we have lying around for the KPA500, if it will fit the amp's power block? Thanks and 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com mailto:km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to w...@w0mu.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
On 3/6/2015 9:33 PM, Don Wilhelm wrote: The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4 manual. Is there a commercial P/N specified for the capacitors? __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 voltage indicator
On 2015-03-07 5:27 AM, G4FNL wrote: Using a DMM, I can see that my 13.8volt linear PSU seems to drop 0.1volt when going from receive to the 100W TX level - yet the display indicator on the K3 goes from 13.7v (receive) to 13.3v (10W) to 12.9v (100W) Is this typical? Where are you measuring the 13.8V in your PSU - at the output terminals? The behavior you see is to be expected as the K3 has V/I metering points on both the main board and on the KPA3 amplifier. If there is 0.05 Ohms of total resistance (power lead, PowerPole connectors, connections to the PSU, etc.) between the PSU and metering points and your K3 draws 18A at 100W TX power, the voltage as measured in the KPA3 will drop 0.9V (I * R - 18 * 0.05 = 0.9V) between RX and TX. Since the KPA3 contains a 15V zener for overvoltage protection, many prefer to adjust the PSU's no load voltage to 14.8V to accommodate the ~ 1V drop due to connection losses in transmit. This permits the KPA3 to operate at nominal voltage and improves transmit IMD somewhat. 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3, Replacement Synth question
HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Contemplating Purchase of K3
Per usual, I am late responding (I receive the list by digest about 2-3 times/day): First off, I am not a HF contester or DXer, so my use of CW is casual (avoid when the former activity is present). I bought the 8-pole filters: 2.8-KHz and 400-Hz. The former because I run diversity on a KRX3 (which only has the 2.8-KHz). I figured the steeper filters would be valuable for resale (if that ever came to happen). I also bought the 13-KHz filter for FM (on VHF using transverters; also works on 10m 6m). The 13-KHz is installed for AM. I have found in the very little CW operation on HF that I actually like tuning around with DSP bw = 500-Hz or wider. Once settled on a particular CW signal bw can be reduced to 400-Hz for quieter band reception. The only time I run CW at very narrow bw (typ. 100-Hz) is for CW-eme signals (very weak). I find those signals using a water-fall display (using either MAP65 display or Spectravue). Usually tune them with wider bw until exactly at the pitch I desire and then reduce DSP bw to enhance signal readability. Since you are a DXer, I suspect the 400-Hz 8-pole might give you a slight edge over the 500-Hz 5-pole in a crowded band (especially if you have close neighbor stations also vying for the DX). Then the new SYNTH ought to help a lot. My two cents observation from a non-expert. 73, Ed - KL7UW Date: Sat, 7 Mar 2015 18:10:59 + From: Richard Gillingham w...@hotmail.com To: =?utf-8?Q?elecraft@mailman.qth.net?= elecraft@mailman.qth.net Subject: Re: [Elecraft] Contemplating Purchase of K3 Message-ID: col401-eas4144d4a8823ecc609f229d69c...@phx.gbl Content-Type: text/plain; charset=utf-8 Many thanks for the recommendations. The consensus is overwhelmingly for the 400 KHz filter. I?m primarily a DXer, and most of what I work is on CW. So? That will be on the list. Thanks again to all 73 Gil, W1RG 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Where do Old Synths Go?
Ted - unless Tech Mode is łON˛ in Config. Since it is recommended that Tech Md be normally off When I first discovered TechMode, I turned it on and it's been on for years now. Who recommended it be off and why? 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 Message delivered to arch...@mail-archive.com
[Elecraft] FW: Where do Old Synths Go?
The K3 Owner’s Manual at p. 49 says: Most calibration procedures use Tech-Mode menu entries. To enable these, set CONFIG:TECH MD to ON. Set TECH MD to OFF afterward.” I have no idea why. KN1CBR On 3/7/15, 3:32 PM, Mike Reublin NF4L n...@comcast.net wrote: Ted - unless Tech Mode is łON˛ in Config. Since it is recommended that Tech Md be normally off When I first discovered TechMode, I turned it on and it's been on for years now. Who recommended it be off and why? 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
I think it's for Field Day or contests where someone else may be operating the rig. It keeps some of the more critical items a bit better hidden. 73, Roger On 3/7/2015 5:36 PM, Ken G Kopp wrote: I've wondered why there's an OFF mode for TECH MODE. Mine's never been off since I first turned it on. There's likely a reason, but I'm not aware of it. 73! Ken - 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
There is no harm in leaving TECH MD set to ON, but there is exposure for those playing in the menu to undo the calibration settings that fall under the requirement to have tech mode turned on. So when used at the home station, fumble fingers is the major exposure. Now -- for Field Day and other occasions where others operating your K3 might try changing settings 'just to see what happens', you may want to turn TECH MD off during that event. 73, Don W3FPR On 3/7/2015 5:56 PM, Roger D Johnson wrote: I think it's for Field Day or contests where someone else may be operating the rig. It keeps some of the more critical items a bit better hidden. 73, Roger On 3/7/2015 5:36 PM, Ken G Kopp wrote: I've wondered why there's an OFF mode for TECH MODE. Mine's never been off since I first turned it on. There's likely a reason, but I'm not aware of it. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
Hmmm ... maybe a password or PIN to turn TECH MD on? :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 3/7/2015 3:27 PM, Don Wilhelm wrote: There is no harm in leaving TECH MD set to ON, but there is exposure for those playing in the menu to undo the calibration settings that fall under the requirement to have tech mode turned on. So when used at the home station, fumble fingers is the major exposure. Now -- for Field Day and other occasions where others operating your K3 might try changing settings 'just to see what happens', you may want to turn TECH MD off during that event. 73, Don W3FPR __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
I cannot help with the clutter behind your K3. That is the responsibility of each and every K3 owner. A good yearly Spring cleaning may be the only solution to the wire clutter in a 'wireless' ham station. I do not schedule that activity, but do it any time I pull the K3 out of its berth for any reason. You may have heard that Cleanliness is next to Godliness, but OTOH, if it is not broke, do not try to fix it. 73, Don W3FPR On 3/7/2015 7:27 PM, Fred Jensen wrote: Just kidding Don. :-) I turned mine on when I had to and never turned it off. Since I almost never go into the menu systems, the fact that I'm becoming more clumsy as I accumulate birthdays hasn't affected the performance of my K3. My new synthesizer hasn't arrived yet, but I'm getting the impression that installation is pretty straightforward. What isn't going to be straightforward is sorting out all the wireless stuff behind the rack to get the K3 re-installed. I think I'll dismantle everything, clean up all the dust and use the hand-vac, and start fresh. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 voltage indicator
What are you using for a Power Supply? From: G4FNL gra...@g4fnl.co.uk To: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, March 7, 2015 5:27 AM Subject: [Elecraft] K3 voltage indicator Folks I suspect that may have been asked before, so forgive me if it has, but I need to know what the typical voltage readings are observed (on the K3 voltage indicator) when a) On receive? b) With say 10w TX power? c) With 100W TX power? Using a DMM, I can see that my 13.8volt linear PSU seems to drop 0.1volt when going from receive to the 100W TX level - yet the display indicator on the K3 goes from 13.7v (receive) to 13.3v (10W) to 12.9v (100W) Is this typical? 73 Graham G4FNL __ 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 Message delivered to hlyin...@yahoo.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Latest MCU and DSP
If you are seriously considering an SB200 that needs a keying circuit, the standard upgrade for any of the SB200/201/220/221 is the Harbach Softkey keying mod, which changes it from your keying +200 volts (compatible with nothing modern) to a tame low negative voltage low current key voltage that works with anything modern. http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_9/ch9p1.html . There are many SB2xx amps, made modern with a full set of Harbach mods, still in use and likely to be around as long as we have ham bands. There are little circuits that can be put in tiny boxes, which you can find with Google, but the permanent answer is to bring it up to spec with the Harbach mods. 73 and good luck, Guy K2AV On Saturday, March 7, 2015, W4MIL via Elecraft elecraft@mailman.qth.net wrote: I've not been active in some time with my KX-3. Last firmware update was MCU 1.61 and DSP 1.23. What are the latest (non-Beta) releases available? Also, does anyone have recommendations on a good desk mic for the KX-3? And any recommendations for an interface to allow keying of an SB-200 amplifier? I've tried to keep up with all of the comments over the past 1.5 years, but things change as the KX-3 has evolved and individual experiences may differ today from those in the past. Thanks in advance for any info. 73 ChuckW4MIL チャーリー ミルトン __ 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 Message delivered to k2av@gmail.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 Message delivered to arch...@mail-archive.com
[Elecraft] Where do Old Synths Go?
Installed two KSYN3As today; worked V73NS on 10M/CW right after so I guess all is good. Installation fairly easy, though one suggestion for a revision to the instructions, noted below. More immediate question: What¹s the best thing to do with the old boards? As I understand it: (a) KRX3 sub receivers are now shipping with the new synths. (b) It doesn¹t work to have one old and one new. (c) Therefore anyone adding a KRX3 now has to buy an additional KSYN3A. And (d) - I think I saw this here a while ago - Elecraft (wisely) doesn¹t want to deal with the old synths we-all remove. So, those of us who have upgraded don¹t use the old ones but someone who wants to after-install a KRX3 might want one to avoid the additional $189. (That¹s assuming a new KRX3 will work with an old KSYN3 - is that the case?) If I have all of that right, what¹s the wise thing to do with old synths - some way to match up those who have them with those who want them? My suggestion about the instructions: The last step of the installation instructions is the Initial Checks. Calls for checking SYN1 and SYN2 on the VFO B Display. Fine; except SYN1 and SYN 2 don¹t appear on Display unless Tech Mode is ³ON² in Config. Since it is recommended that Tech Md be normally off, I puzzled for a while about why Display wasn¹t showing the SYNs - and then I read Fred Cady¹s book, which toggled my memory about Tech Md. Maybe the instructions could add that, for those who - like me - don¹t remember everything all the time. Also installed the P3 SVGA today. One anomaly there; will ask for help later if I can¹t work it out. Ted, KN1CBR __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
Hi, I think this is quite a good idea ! The talking arround it with the no longer available trimmers could be stopped by redesigning the filter with more fixed NP0 caps and less variable trimmers. A trimmer with 1 to 40pF is an evil an unneeded coponent. Give the firmware to open source and others may break their heads ! 73, Herbert CT2IJD / DD0PC Am 07.03.2015 20:50, schrieb Wolfgang Klein: Hi, when the 4-band module should not be developed further, it would be a good idea to publish the firmware so that it might create a open source project??? 73, Wolfgang DL2KI __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] W1 power meter for sale
W1 built into a plexiglass box by SK K8IDN. $75. Also, a couple of frequency counters. See them here: http://www.carl-yaffey.com/estate_sale.html Carl Yaffey K8NU Recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power cord for KPA500
Is there any reason he can't use an old computer power cord we have lying around for the KPA500, if it will fit the amp's power block? Yes! A computer cord is not heavy enough, especially if you are converting to 120 from 240 configuration. Current will be DOUBLE. Just buy the cable from E-craft and be done with it. Why skimp on a $2K amp? Don't forget also, that the fuse configuration/block has to be changed. Gary __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] FW: Where do Old Synths Go?
I'd guess the reason is b/c most users are unlikely to use tech mode entries all that often, and so hiding them makes the remaining items easier to find. 73, Matt NQ6N On Sat, Mar 7, 2015 at 4:40 PM, Dauer, Edward eda...@law.du.edu wrote: The K3 Owner’s Manual at p. 49 says: Most calibration procedures use Tech-Mode menu entries. To enable these, set CONFIG:TECH MD to ON. Set TECH MD to OFF afterward.” I have no idea why. KN1CBR On 3/7/15, 3:32 PM, Mike Reublin NF4L n...@comcast.net wrote: Ted - unless Tech Mode is łON˛ in Config. Since it is recommended that Tech Md be normally off When I first discovered TechMode, I turned it on and it's been on for years now. Who recommended it be off and why? 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 Message delivered to m...@nq6n.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power cord for KPA500
All, Thank you for the replies. My father-in-law was able to source a 14 ga. Server power cable locally, and will get the proper power supply fuse from one of the many electrical supply houses here in the Atlanta area. 73 de, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com mailto:km4ik@gmail.com Please join me in the Georgia QSO Party April 11-12, 2015. Info at http://www.georgiaqsoparty.org. 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
Herbert and all, There is no need for the KFL1 firmware to be open source, it is available from Elecraft as a spare part. Elecraft will continue to support existing KFL1-4 boards with parts (except for replacement trimmer capacitors) for a good long time into the future. In other words, even though the board has been discontinued, that does not mean support for that board has been retracted. If I need to repair a KFL1-4 board that has a failed trimmer capacitor, I will then replace it with another temperature stable capacitor with lesser range an use whatever NP0 or C0G capacitors to restore it to working condition. I have replaced a few of those blue bodied capacitors in the past, but the number has been very few considering the number of repairs I have done over the years. 73, Don W3FPR On 3/7/2015 5:49 PM, Humberto wrote: Hi, I think this is quite a good idea ! The talking arround it with the no longer available trimmers could be stopped by redesigning the filter with more fixed NP0 caps and less variable trimmers. A trimmer with 1 to 40pF is an evil an unneeded coponent. Give the firmware to open source and others may break their heads ! 73, Herbert CT2IJD / DD0PC Am 07.03.2015 20:50, schrieb Wolfgang Klein: Hi, when the 4-band module should not be developed further, it would be a good idea to publish the firmware so that it might create a open source project??? 73, Wolfgang DL2KI __ 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 Message delivered to w3...@embarqmail.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 Message delivered to arch...@mail-archive.com
[Elecraft] Blue trimmer capacitors - no more available
All, I would like to add that the non-availability of those 1-40pF trimmer capacitors impacts more Elecraft products than just the discontinued KFL1-4. They were used as the nulling capacitors in all the Elecraft integrated wattmeters, so for that application, the KAT2, KAT1, KXAT1, KAT100, and KPA100 have been impacted. The proper replacement for those wattmeter nulling capacitors is a 5-15pF trimmer E540012. Also impacted are the K2 trimmers used in the bandpass filters. The 5-15pF trimmers (E540012) work fine in the 10/12 meter bandpass filter, but do not have sufficient capacity for the 15/17 meter bandpass where a 7-25pF trimmer (Elecraft PN 540011) is the substitute. That fact requires a rewrite of the K2 manual stating that the red bodied trimmer capacitors are to be used at C32 and C34 while the white bodied trimmers are to be used at C44 and C46. That information will be good until the manufacturer decides to change the capacitor body color to something different (which is a constant exposure when trying to identify parts by the body colors). What I am saying is that the impact of the loss of these wide range temperature stable trimmers is not confined to the KFL1-4 board, but has a wide ranging impact not only for new Elecreaft kits, but for those wanting parts replacements. One must communicate the use to pa...@elecraft.com (and sales) to obtain the correct replacement trimmer capacitor. The loss of that wide range trimmer capacitor is being felt in many areas of the K1, K2 and KX1 products. The impact is greater than just the loss of the KFL1-4 option. 73, Don W3FPR --- Herbert and all, There is no need for the KFL1 firmware to be open source, it is available from Elecraft as a spare part. Elecraft will continue to support existing KFL1-4 boards with parts (except for replacement trimmer capacitors) for a good long time into the future. In other words, even though the board has been discontinued, that does not mean support for that board has been retracted. If I need to repair a KFL1-4 board that has a failed trimmer capacitor, I will then replace it with another temperature stable capacitor with lesser range an use whatever NP0 or C0G capacitors to restore it to working condition. I have replaced a few of those blue bodied capacitors in the past, but the number has been very few considering the number of repairs I have done over the years. 73, Don W3FPR On 3/7/2015 5:49 PM, Humberto wrote: Hi, I think this is quite a good idea ! The talking arround it with the no longer available trimmers could be stopped by redesigning the filter with more fixed NP0 caps and less variable trimmers. A trimmer with 1 to 40pF is an evil an unneeded coponent. Give the firmware to open source and others may break their heads ! 73, Herbert CT2IJD / DD0PC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
Hi, when the 4-band module should not be developed further, it would be a good idea to publish the firmware so that it might create a open source project??? 73, Wolfgang DL2KI -- 73 de DL2KI http://www.dl2ki.de DOK K08 DL-QRP-AG #3247 G-QRPC #13541 Jabber-ID: dl...@jabber.ccc.de GnuPG: Öffentlicher Schlüssel erzeugt am: 2012-10-27 Key-ID: 0xFB3F3B7A Algorithmus: RSA(4096 Bit) Fingerprint: 4530 9FCB 9D48 9B50 967C F81C 0EDB 78D9 FB3F 3B7A Anleitung - E-Mails verschlüsseln - Free Software Foundation https://emailselfdefense.fsf.org/de/ __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [Bulk] Contemplating Purchase of K3
On Mar 7, 2015, at 11:42 AM, Richard Gillingham w...@hotmail.com wrote: I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? My wife bought me a stock K3/100 for Christmas 2012. It replaced my K2/100 w/KAT100. So, the first item I bought was the KAT3 antenna tuner. If you were planning to get the KAT500, I would go with that an not bother with the KAT3. I used the rig pretty much stock for many months. Other may encourage you to buy lots of filters, but you can do a heck of a lot with the rig with the stock filter. Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
Just kidding Don. :-) I turned mine on when I had to and never turned it off. Since I almost never go into the menu systems, the fact that I'm becoming more clumsy as I accumulate birthdays hasn't affected the performance of my K3. My new synthesizer hasn't arrived yet, but I'm getting the impression that installation is pretty straightforward. What isn't going to be straightforward is sorting out all the wireless stuff behind the rack to get the K3 re-installed. I think I'll dismantle everything, clean up all the dust and use the hand-vac, and start fresh. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 3/7/2015 4:12 PM, Don Wilhelm wrote: No way! I have too many passwords and PINs as it is. Leave well enough alone. Those who are prone to inattention and fumble fingers should *not* leave TECH MD set to ON -- do as the manual suggests. Those who choose to leave it set to ON will just have to accept the consequences if some calibration parameter is inadvertently changed. 73, Don W3FPR On 3/7/2015 6:51 PM, Fred Jensen wrote: Hmmm ... maybe a password or PIN to turn TECH MD on? :-) __ 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 Message delivered to k6...@foothill.net - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5645 / Virus Database: 4299/9249 - Release Date: 03/07/15 __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Power cord for KPA500
Make sure the power cord is seated firmly in the socket on the amp. My new KPA500 had intermittent power on problems that I finally traced to the plug on the end of the cord that attaches to the amp. I use the 220 VAC Elecraft cord. They sent me a new cord. The new one fits so snugly I can hardly get it out! __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Tech Mode
I've wondered why there's an OFF mode for TECH MODE. Mine's never been off since I first turned it on. There's likely a reason, but I'm not aware of it. 73! Ken - K0PP On Sat, Mar 7, 2015 at 3:32 PM, Mike Reublin NF4L n...@comcast.net wrote: Ted - unless Tech Mode is łON˛ in Config. Since it is recommended that Tech Md be normally off When I first discovered TechMode, I turned it on and it's been on for years now. Who recommended it be off and why? 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Tech Mode
No way! I have too many passwords and PINs as it is. Leave well enough alone. Those who are prone to inattention and fumble fingers should *not* leave TECH MD set to ON -- do as the manual suggests. Those who choose to leave it set to ON will just have to accept the consequences if some calibration parameter is inadvertently changed. 73, Don W3FPR On 3/7/2015 6:51 PM, Fred Jensen wrote: Hmmm ... maybe a password or PIN to turn TECH MD on? :-) __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Latest MCU and DSP
consider the Power supply as well old electrolytic caps will fail when I got mine from someone that didnt use it for some time the power supply came up but the B+ was jumping a bit I turned it off fast may as well do the fan too the old Heaths are good amps and not so damned heavy Bob K3DJC On Sat, 7 Mar 2015 15:48:02 -0500 Guy Olinger K2AV k2av@gmail.com writes: If you are seriously considering an SB200 that needs a keying circuit, the standard upgrade for any of the SB200/201/220/221 is the Harbach Softkey keying mod, which changes it from your keying +200 volts (compatible with nothing modern) to a tame low negative voltage low current key voltage that works with anything modern. http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_9/ch9p1 .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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 four band modules
While it is a loss that the 4-band module is no longer available, consider having two individual K1 radios! You get four bands, more fun building AND you can monitor one band while working another! Or monitor two bands while doing something else entirely. I'm sure your wife will understand that you need another radio! https://www.youtube.com/watch?v=kiuO0ddcJFQ Roy AC9DN __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
I'll wait... I am not in a hurry... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sat, 2015-03-07 at 19:28 -0800, Bill Frantz wrote: Speaking at Radiofest today, Eric said they had been surprised by the demand for the new synths. Currently they are using most of their supply for filling K3 orders. He expects to get caught up with the current synth orders in April, about the time I expect have softened up the YL enough to get my order in. Even with a late order, I expect to have a bit of a wait. 73 Bill AE6JV On 3/7/15 at 7:10 AM, d...@nk7z.net (David Cole) wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? --- Bill Frantz| gets() remains as a monument | Periwinkle (408)356-8506 | to C's continuing support of | 16345 Englewood Ave www.pwpconsult.com | buffer overruns. | Los Gatos, CA 95032 __ 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 Message delivered to d...@nk7z.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
One can never have too many! Tonight I parked my K2 and worked SKCC using MFJ 9040 and KX1. That leaves K1, KX3, LNR FX-2, Survivor, and OHR100A lacking attention. Don't tell them, but they will all will be for sale at Hamvention as I look for different toys with which to play. Stop by flea market 3106 with your trades. Let's deal! Ken - ke4rg -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Wheeler Sent: Saturday, March 7, 2015 8:47 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K-1 4-band Availability/Status? Wes, While I think the K1 (4-band especially!) is a fine rig, it's luster for me was dulled a bit when I was able to make a KX3 my primary QRP rig. Pluses include: * Way more than four bands * All modes on the bands in does cover, even digital as an option * Superior receiver * Panadapter available * And others too numerous to mention here all in a package that is not really all that much bigger than the K1. Two definite pluses of the K1: I enjoyed building it more (a melt-solder kit) and it has a bigger speaker. snip __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] SSB net cancelled
The ARRL DX phone contest is eating 20m. Let’s not fight it. No SSB net this Sunday. We’ll be back on March 15. 73, Phil, NS7P PS: Don’t forget the time change. __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3: Sherwood Receiver Test Data question
Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer) ...which compares very well to the 'original' K3. 73 de Pierre VE2PID __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
Wes, While I think the K1 (4-band especially!) is a fine rig, it's luster for me was dulled a bit when I was able to make a KX3 my primary QRP rig. Pluses include: * Way more than four bands * All modes on the bands in does cover, even digital as an option * Superior receiver * Panadapter available * And others too numerous to mention here all in a package that is not really all that much bigger than the K1. Two definite pluses of the K1: I enjoyed building it more (a melt-solder kit) and it has a bigger speaker. After considerable thought, I recently sold my fully-configured and updated K1 #18. I sort of miss it, but how many rigs can a body use? 73, Phil W7OX On 3/7/15 5:24 PM, Wes (N7WS) wrote: Come on, we're hams, we're supposed to jump at these opportunities. On 3/6/2015 11:34 PM, Wayne Burdick wrote: Hi all, The KFL1-4 module needs trimmers that are both wide range and extremely temperature stable, due to the high loaded Q of the band-pass filters. To emulate this stable capacitance with trimmers now available, you'd have to use a hand-selected C0G cap in parallel with a much smaller trimmer for each of the original 16 trimmers. This would be extremely tedious for builders. So, while it is possible, it is not practical. 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3/100-F For Sale
For Sale a K3/100 Factory built loaded with many features in mint condition. If interested please contact me off list for details. 73, Tony K2SG __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 voltage indicator
Measure the voltage inside the K3, at the powerpole.. you may need thicker DC lead or clean the fuse contacts. G1MHU -Original Message- From: Harry Yingst via Elecraft Sent: Sunday, March 08, 2015 12:47 AM To: gra...@g4fnl.co.uk ; Elecraft Reflector Subject: Re: [Elecraft] K3 voltage indicator What are you using for a Power Supply? From: G4FNL gra...@g4fnl.co.uk To: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, March 7, 2015 5:27 AM Subject: [Elecraft] K3 voltage indicator Folks I suspect that may have been asked before, so forgive me if it has, but I need to know what the typical voltage readings are observed (on the K3 voltage indicator) when a) On receive? b) With say 10w TX power? c) With 100W TX power? Using a DMM, I can see that my 13.8volt linear PSU seems to drop 0.1volt when going from receive to the 100W TX level - yet the display indicator on the K3 goes from 13.7v (receive) to 13.3v (10W) to 12.9v (100W) Is this typical? 73 Graham G4FNL __ 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 Message delivered to hlyin...@yahoo.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 Message delivered to g1...@hotmail.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 Message delivered to arch...@mail-archive.com
[Elecraft] W1 SOLD
Carl Yaffey K8NU Recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.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 Message delivered to arch...@mail-archive.com
[Elecraft] For Sale: Telepost LP-100 upgraded to an LP-100a
FOR SALE: A Telepost LP-100. I'm getting a W2. The LP-100 has been upgraded with the LP-100A GVFD Display Kit, so electrically it's an LP-100A. It has the latest LP-100A firmware installed. It comes with the standard 2000 watt 1.8-54 MHz coupler. It was sent to Telepost for calibration. It's in great shape. Works great. $350.00 includes Priority mail shipping to USA. Shipping outside of the USA will be the actual shipping cost. Contact me off list if interested. Roger, W1EM __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
Speaking at Radiofest today, Eric said they had been surprised by the demand for the new synths. Currently they are using most of their supply for filling K3 orders. He expects to get caught up with the current synth orders in April, about the time I expect have softened up the YL enough to get my order in. Even with a late order, I expect to have a bit of a wait. 73 Bill AE6JV On 3/7/15 at 7:10 AM, d...@nk7z.net (David Cole) wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? --- Bill Frantz| gets() remains as a monument | Periwinkle (408)356-8506 | to C's continuing support of | 16345 Englewood Ave www.pwpconsult.com | buffer overruns. | Los Gatos, CA 95032 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
On 2015-03-07 10:28 PM, Bill Frantz wrote: Speaking at Radiofest today, Eric said they had been surprised by the demand for the new synths. Maybe they need to get ready for more surprises. Sherwood's new numbers show a 6 dB lower noise floor without the preamp than the old synth and sensitivity numbers equivalent to the old synth with a 6 dB lower AGC threshold. That translates to a hotter *and* quieter receiver as well as a cleaner transmitter. The new K3 no preamp MDS is equivalent to that of the TS-590SG, Flex-5000, TenTec Orion, Yaesu FTdx5000 and Icom 7800 *with* their preamps (first step for the FTdx5000 and IC-7800). Very impressive. 73, ... Joe, W4TV On 2015-03-07 10:28 PM, Bill Frantz wrote: Speaking at Radiofest today, Eric said they had been surprised by the demand for the new synths. Currently they are using most of their supply for filling K3 orders. He expects to get caught up with the current synth orders in April, about the time I expect have softened up the YL enough to get my order in. Even with a late order, I expect to have a bit of a wait. 73 Bill AE6JV On 3/7/15 at 7:10 AM, d...@nk7z.net (David Cole) wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? --- Bill Frantz| gets() remains as a monument | Periwinkle (408)356-8506 | to C's continuing support of | 16345 Englewood Ave www.pwpconsult.com | buffer overruns. | Los Gatos, CA 95032 __ 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 Message delivered to li...@subich.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 Message delivered to arch...@mail-archive.com
[Elecraft] Contemplating Purchase of K3
If you have already had the KX3 for portable use, then internal KAT3 may not be necessary. All depends on your operation style. 73 Johnny VR2XMC 寄件人︰ Ian - Ham km4ik@gmail.com 收件人︰ 'Richard Gillingham' w...@hotmail.com; elecraft@mailman.qth.net 傳送日期︰ 2015年03月8日 (週日) 3:10 AM 主題︰ Re: [Elecraft] Contemplating Purchase of K3 I would still consider adding the 100W internal ATU for a couple of reasons. If your KAT500 goes out and you have to send it back to the mother ship for repair, you'll still be able to use any antenna you want. You won't be forced into finding resonant antennas for the bands you want to operate. Also, it will be much easier to operate portable (I know, you have the KX3 :-) ) if you ever want to do so. And, the K3 is a great rig for operating portable if you want more juice than the KX3 offers. Just ask anyone who's been on the recent DXpeditions that used the K-Line. Hope this is helpful. 73 de, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com 10-10 #74624, North Georgia Chapter #2038 PODXS 070 #1962 K3# 281, P3 #688, KAT500 #860, KPA500 #1468 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Gillingham Sent: Saturday, March 7, 2015 11:42 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Contemplating Purchase of K3 I’m thinking about purchasing the K3-100 kit. I plan start with the minimum configuration and adding features as I get the $$.. I already have the KX3, PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II. I’ll assume I won’t need the internal atu with the K3, and will add the P3 and IF out board when the time comes. I’ll get the interface cable to the KAT500… With this bare bones K3, is there anything else that you all might feel is indispensable? 73 to all and good DX Gil, W1RG Sent from Windows Mail __ 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 Message delivered to km4ik@gmail.com --- This email has been checked for viruses by Avast antivirus software. http://www.avast.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 Message delivered to vr2...@yahoo.com.hk __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-1 4-band Availability/Status?
I have WAY more than two, Phil -- even after selling the K1 and last Fall giving my NC-40A to an old ham with no rig in Florida :-) 73, Phil W7OX On 3/7/15 6:24 PM, Phil Hystad wrote: but how many rigs can a body use? More than Two. Two is justified -- one as primary rig, second as backup. But, having a third means you are serious. Therefore, more than Two. Note: no upper bound. My Norcal 40A is no match for my KX3 but I still put it on the air a couple of times a year. When I operate portable QRP somewhere, I take my KX3, my KX1, and my Norcal 40A and many times I have enough time to use them all for at least one QSO. Just now waiting for the warmer Northwest weather although today was not bad at 64 degrees. 73, phil, K7PEH On Mar 7, 2015, at 5:47 PM, Phil Wheeler w...@socal.rr.com wrote: Wes, While I think the K1 (4-band especially!) is a fine rig, it's luster for me was dulled a bit when I was able to make a KX3 my primary QRP rig. Pluses include: * Way more than four bands * All modes on the bands in does cover, even digital as an option * Superior receiver * Panadapter available * And others too numerous to mention here all in a package that is not really all that much bigger than the K1. Two definite pluses of the K1: I enjoyed building it more (a melt-solder kit) and it has a bigger speaker. After considerable thought, I recently sold my fully-configured and updated K1 #18. I sort of miss it, but how many rigs can a body use? 73, Phil W7OX On 3/7/15 5:24 PM, Wes (N7WS) wrote: Come on, we're hams, we're supposed to jump at these opportunities. On 3/6/2015 11:34 PM, Wayne Burdick wrote: Hi all, The KFL1-4 module needs trimmers that are both wide range and extremely temperature stable, due to the high loaded Q of the band-pass filters. To emulate this stable capacitance with trimmers now available, you'd have to use a hand-selected C0G cap in parallel with a much smaller trimmer for each of the original 16 trimmers. This would be extremely tedious for builders. So, while it is possible, it is not practical. 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 Message delivered to phys...@mac.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3, Replacement Synth question
I don't know whether it is the firmware or the hardware but the QSK even at 25-30wpm is now extremely smooth and without artifacts like pops that used to occur. Very, very nice!! And I got it for the 630m support. jim On Sat, Mar 7, 2015 at 10:28 PM, Bill Frantz fra...@pwpconsult.com wrote: Speaking at Radiofest today, Eric said they had been surprised by the demand for the new synths. Currently they are using most of their supply for filling K3 orders. He expects to get caught up with the current synth orders in April, about the time I expect have softened up the YL enough to get my order in. Even with a late order, I expect to have a bit of a wait. 73 Bill AE6JV On 3/7/15 at 7:10 AM, d...@nk7z.net (David Cole) wrote: HI, I ordered a pair of synths about a week ago, and was wondering what the delivery time has been on the West Coast? Can someone comment on the time it took for the order to be fulfilled and delivered? --- Bill Frantz| gets() remains as a monument | Periwinkle (408)356-8506 | to C's continuing support of | 16345 Englewood Ave www.pwpconsult.com | buffer overruns. | Los Gatos, CA 95032 __ 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 Message delivered to j...@jtmiller.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Sherwood Receiver Test Data question
Of more interest is that the new synthesizer numbers show 6 dB lower noise floor without the preamp. That means much more sensitivity on 12 and 10 meters where external noise is low. It is also interesting that the new numbers were achieved with AGC threshold 6db *lower* (sooner) than with the original synthesizer. 73, ... Joe, W4TV On 2015-03-07 10:24 PM, Pierre wrote: Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer) ...which compares very well to the 'original' K3. 73 de Pierre VE2PID __ 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 Message delivered to li...@subich.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Sherwood Receiver Test Data question
Pierre ve2...@videotron.ca wrote: Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer) ...which compares very well to the 'original' K3. YesIn our haste, we sent Rob a K3 with new synths but uncalibrated RX gain. Now that the automated RX GAIN procedure has been completed, this K3 behaves normally. 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 Message delivered to arch...@mail-archive.com
