[Elecraft] K3 power supply
I have been using my silent SPA 8230 power supply for many years. Its mains switch started show contact errors, would like to replace it. As QRP Shop Biz in Germany closed last year need help to find where can I find switch replacement. Could you please help with the switch type and manufacturer as its size quite small? 73, István ha4zd __ 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] ARRL Handbook 2021
No solution in EU, finally ARRL HQ helped me out. Great support. Thank you for everyone for the ideas. 73, István HA4ZD __ 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] ARRL Handbook 2021
Excuse me for the off topic, I got the ARRL Handbook without CD from FA. No CD any more? Download website is not listed anywhere. 73, István HA4ZD __ 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] KX3 charger failure?
Don, This value is shown when the 13.8V PS is connected. It had shown the PS value before, have I missed something? 73, István HA4ZD On Thu, 8 Oct 2020 at 15:58, Don Wilhelm wrote: > Istvan, > > There are protective diodes in series with both the internal batteries > and the external supply, so the fact that the KX3 shows 0.3 to 0.4 volts > lower than the external supply is normal. > > 73, > Don W3FPR > > On 10/8/2020 2:53 AM, István Szabó wrote: > > When I plug in the 13.8V PS the radio shows 13.8V for only 1 second and > > drops to 10.4V. Eneloop batteries all OK 1.29V individually. Running a 4 > > hour charging cycle it turns off when voltage reached and shows the > > dropped voltage. When batteries removed the voltage shown on display > 13.8V. > > Is it known failure, what can I do to fix 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
[Elecraft] KX3 charger failure?
When I plug in the 13.8V PS the radio shows 13.8V for only 1 second and drops to 10.4V. Eneloop batteries all OK 1.29V individually. Running a 4 hour charging cycle it turns off when voltage reached and shows the dropped voltage. When batteries removed the voltage shown on display 13.8V. Is it known failure, what can I do to fix 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] 2-30 MHz Transmit? MARS
Menu item is a great idea. Competition equipment could be modified also easily. 73, István ha4zd On 07/04/2015 20:48, Mike Morrow wrote: ...Military Amateur Radio System... ...Military Affiliate Radio System... ...Military Auxiliary Radio System... MARS has stood for *all three* of the above proposed phrases since its creation after WWII for the Army and (later) Air Force as a formal organization of military and amateur stations operating on military frequencies to handle written and phone patch traffic for military servicemen. Because an amateur license was used only as an individual's technical qualification for membership while MARS conducted none of its business on amateur frequencies, AMATEUR was changed to AFFILIATE shortly thereafter. The Navy/Marine Corps finally created its own MARS in the early 1960s. Throughout the first 25 years of MARS's existence the primary task was to serve the serviceman as one of the limited means he had to communicate rapidly with his family. That mission was last carried out to any great extent during the Vietnam war. MARS has had to create an Emergency Communications mission to justify its existence since. About a decade ago, for reasons best understood by builders of bureaucr acies, AFFILIATE was changed to AUXILIARY. MARS HF gear as yet does not need to meet NTIA specs. Once CAP was often cited along with MARS...the Civil Air Patrol operates HF/VHF nets similar to MARS, on Air Force frequencies. But about a decade ago CAP required communications equipment to meet NTIA specs...something no ham gear is going to meet. With respect to the issue of a manufacturer artficially limiting the transmit frequency coverage of its equipment to ham bands only, I find such an attitude paternalistic and condescending. It plainly conveys the attitude that the customer is too stupid to avoid improper or illegal operation of the equipment. There should be a menu item that allows either full or ham-band-only coverage. That is all. I have over several decades found full band transmit coverage to be routinely useful for test signal generation in addition to MARS work. The manufacturer should not presume to become enforcer of regulations. Mike / KK5F __ 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 ha...@t-online.hu -- Árva a fehér nyúl, Keletre jár, nyugatra néz, Jó a ruha, míg új, De emberből, ki barát rég. („茕茕白兔，东走西顾，衣不如新，人不如故) __ 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] Question K3 ALC w/SPE Expert 1.3K-FA amp
ARRL may initiate changing that law. Proud hams could drive that change. With current LDMOS devices lots of money can be saved with one stage amps. That change would accelerate switching from tube amps to technically much more advanced LDMOS amps. Less energy consumption, smaller shack space required. Another question is are there more hams in USA or CB operators? 73, István ha4zd On 04/04/2015 00:01, Oliver Dröse wrote: On a deeper level, to design an amplifier with that much gain is bad design Huh? Why is that, Joe? We now have devices capable of 22 or even 30 dB of clean amplification. Why should we not use it? Just because FCC does not allow it in the U.S.? I'm not bound to FCC rules and I'd rather prefer to drive such an amp with 1 or 3 watts from the KX3 to get 1 kW out than to cascade the transceiver with a driver amp and then a final amp. Of course I'm just bound to German law which does not contain any stupid (pardon me, but it is!) amplification limits, just the maximum allowed power. How we generate it is up to us radio amateurs overhere. That also means responsibility, of course. :-) Happy Easter! Vy 73, Olli - DH8BQA http://www.dh8bqa.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] Is there a K4 on the horizon? MAYBE
There is a connector on the new synth board. What is the future development it is for? That may show some direction. István ha4zd __ 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] Heil Proset KX3 Element?
Heil Proset is great with K3 and KX3 both. Different settings but each sounds excellent. You may not like Proset on portable, it is large for that, use a small, light computer headset with electret element if you prefer VOX. I use a small Panasonic that requires more mic gain than than Proset. István ha4zd On 29/12/2014 01:48, Michael Walker wrote: That is because you don't need one. http://www.elecraft.com/manual/E740174%20Proset%20for%20the%20KX3%20Rev%20A.pdf Mike va3mw __ 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 timekeeping
I have no circuit diagram, what is the timebase quartz frekvency? 73' István HA4ZD __ 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] RSGB RadCom Handbook 2015
Ordered the 12th edition from RSGB and they do not ship oversees. Could someone help me which Radiomateur Society distributes it if there is any? No surprise ARRL Handbook is OK. 73' Istán HA4ZD __ 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] RSGB RadCom Handbook 2015
Thank you for all of you who is ready to help. I am waiting for a second e-mail from RSGB and a publishing company if that does not work I will contact one of you or will send UPS to their door for the handbook if that economical. I am member of ARRL and RSGB as well but a bit confused do not understand that overseas issue. Again thank you for the input. 73' István HA4ZD __ 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] Elecraft UPS deliveries
Doug, They are best for me in EU. I order from UK till 4PM and next noon at my door. 73' István ha4zd On 23/04/2014 21:43, Doug Turnbull wrote: Dear OMs and Yls, I like UPS, their tracking is excellent but they do not always knock when making a delivery and get a signature.At 2:52 this afternoon, my new KX3 was delivered to my brother's house in Connecticut. I checked this and called my brother who thought the package had not come but found it outside his door when he looked.He was home as was my nephew during the delivery but the UPS man did not knock.Tracking was superb but the final step is sometimes not executed.I have other friends in the USA who have had similar difficulties with UPS.Sometimes individual UPS drivers leave very expensive parcels besides letter boxes on a busy road 150 yards from the house. This is not good enough with an expensive radio. Buyer beware. I do find that UPS tracking on international shipments is superb and have never experienced a problem with them. If one ships overseas by USPS it seems the tracking stops at the USA border and then sometimes one can go to the domestic postal service for the country involved and type in the original tracking number and follow their parcel in their home country. How one does with a parcel travelling between European countries, I do not know. 73 Doug EI2CN __ 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 ha...@t-online.hu -- A government which robs Peter to pay Paul can always depend on the support of Paul. -- George Bernard Shaw __ 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 FM
Just installed the FM filter. Using the latest utility and firmware it is set for FM mode. With MODE button I can not select FM mode just with K3_EZ program, than it works in FM mode. Am I missing something? 73, István __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 FM
Thank you guys, it is OK now. So the program did not set it. 73' István On 21/01/2014 15:35, Joe Subich, W4TV wrote: CONFIG:FM MODE = ON Your K3 is probably set to OFF which skips FM from the MODE key. 73, ... Joe, W4TV On 1/21/2014 9:18 AM, István Szabó wrote: Just installed the FM filter. Using the latest utility and firmware it is set for FM mode. With MODE button I can not select FM mode just with K3_EZ program, than it works in FM mode. Am I missing something? 73, István __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- A government which robs Peter to pay Paul can always depend on the support of Paul. -- George Bernard Shaw __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] mobile speaker
In Friedricshafen there was a pair of nice little speakers with KX3 on the Elecraft boot. Could someone tell me who does make it? 73, István, HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Nickel Zinc Batteries
I use AA and AAA sizes for different purposes, simply great. NIMH can not compete with them due to similar voltages like batteries. Needs special charger like Volcraft CM410 from Conrad. Pack price went up while MIMH pack price went down this year. 73, Istvan HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] PA for QRP rigs
Found an impressive HF PA, HVLA700Q, looks ideal for QRP rigs like K3/10, KX3 as requires only 10W drive for 700W output. They give attractive 5 year guarantee. Is it a silent PA, any experience? Would be nice having a dBA noise specification with max. power of the factory built PAs. http://www.rf-power.info/hvla700en.html 73, István, HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] MCU 4.60 / DSP 2.80, 11/17/2012
Firmware works OK, I set the wrong AGC not the one is for cw. Thank you for support. 73, István __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] MCU 4.60 / DSP 2.80, 11/17/2012
Recently changed to WIN8 and downloaded the latest firmware. Wanted to use the spot function, does not work. Firmware mod description says /Use the TEXT DEC switch and VFO A to set CW decode threshold. We recommend using THR 2 or 3 for most signals, and THR 1 for very weak signals. These fixed settings usually work better than AUTO. Actually it reduces the sensitivity needed to turn up the AF gain, does not help. The signal signal does not show up on LCD, THR1 can not be set 2 is the lowest. TEXT DECODE does not work either. Did I miss something or simply better to go back to an older firmware. Should some of you ///have/ an older firmware with good spot and text///decoding function please send it to me. The current one is useless. István HA4ZD // __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Grill Cloth on K3/10
I am concerned about falling metal chip, small wire or even the tip of a pencil into the trx. Using a grill cloth like on the speaker, would it ruin the venting of the cabinet to an unacceptable level? vy73 István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3/10F Grill clothe
My K3/10F has no grill cloth, just on the speaker. This is probably an isolated case. I wish I would have. So I will put some onto that. 73' -- István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Buying a KX3 in the UK?
Price will be a major factor, and of course the additional service. UK is very expensive for us on other goods, even w/o customs duty and VAT in Eu. Kit prices may be competitive. We will see. Hard to beat Elecraft. 73' István Szabó HA4ZD It's not necessarily excellent news for the UK. I for one would prefer to continue dealing with Elecraft rather than a general amateur radio reseller who is unlikely to be able to provide the high standard of technical and customer service that Elecraft provide. I am worried by that word exclusive in the Waters and Stanton announcement. I sincerely hope that it will not preclude UK customers who choose to do so from dealing direct with Elecraft like we have always done. Perhaps Elecraft could clarify? 73 to all Geoff G3UCK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] silent subreceiver on 14 MHz, need help
Just observed that the subreceiver of my K3 does not work on 14 MHz only. When I tune the sub it looks like that the VFO changes its frekvency as I hear spurr while tuning. No signal heard coming from antenna input. This phenomena is on 20m only the rest of the bands are fine. No difference between modes. Where shall I start the diagnosis? 73' István Szabó HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] silent subreceiver on 14 MHz, need help
Yes, both of you were right. I use only ANT1 2 and I checked them before. Have not checked the AUX input and the sub was set to AUX. Slow mind on Sunday, thank you for the help. 73' István Szabó On 3/4/2012 4:00 PM, Guy Olinger K2AV wrote: Main ant vs. aux/other ant ant is saved separately by band and which RX, which might cause one the sub RX to seem off as that state is only displayed after BSET (hold on A/B button). Also true of ATT/PRE. This is also true of the NB and NR state and selection. If those are set to a hard quieting, the RX might seem off. 73, Guy 2012/3/4 István Szabó ha...@t-online.hu mailto:ha...@t-online.hu Just observed that the subreceiver of my K3 does not work on 14 MHz only. When I tune the sub it looks like that the VFO changes its frekvency as I hear spurr while tuning. No signal heard coming from antenna input. This phenomena is on 20m only the rest of the bands are fine. No difference between modes. Where shall I start the diagnosis? 73' István Szabó HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] DXCC map
Let's have it a price! I would buy one. István Szabó On 2/21/2012 4:46 AM, Gary K9GS wrote: An excellent idea! I can picture a problem though. It's already nearly impossible to get near the front of the Elecraft booth at Dayton. If they were handing out free maps you couldn't even get in the building. Maybe Elecraft could rent a portion of the flea market parking lot and set up a beer garden? They could hand out maps there. I volunteer for bar tending duties. They could also set up an operating area to demo radios. Just thinking out loud... On 2/20/2012 4:27 PM, István Szabó wrote: My map is so obsolete, that there is USSR, East Germany and so on on it. It would be great to have an Elecraft map as the next one. Any source or plan? 73' István Szabó HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] DXCC map
My map is so obsolete, that there is USSR, East Germany and so on on it. It would be great to have an Elecraft map as the next one. Any source or plan? 73' István Szabó HA4ZD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Source for Type 31 Toroids
Fair-Rite 2631803802 from Mouser 104 gr. Bought about half year ago. 73' István Szabó On 2/12/2012 8:41 AM, Ian White GM3SEK wrote: F5vjc wrote: I have just opened a Mouser account in France and ordered a quantity of, 2631803802 = FT240-3 Fair-Rite. I hope they're OK. Thanks for the tip on the weight data Ian, I'll check them when they arrive. You should have no problem, as Mouser are one of those dependable suppliers. Their catalogue prices are not the cheapest, but Mouser's free international shipping makes them the least expensive way to buy Fair-Rite products in the UK. Do they have the same free shipping offer to France? 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek 2631803802 = FT240-31: 112-114g [1] 2643803802 = FT240-43: 120-122g [1] 5961003801 = FT240-61: 104-106g Original data from G3TXQ, since verified from dependable suppliers. [1] The Fair-Rite data sheet says 118.000g for both of these cores, but in fact the weights of #31 and #43 are distinctly different. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Hum on transmit
I had the same problem with Heil Proset, finally in an angry moment I hit the mike to the desk and problem went away probably temporarily. I have not found error nor in the K3 mic grounding, neither in the Proset capsule wiring. Wanted to buy new mic element, no answer from Heil. Still question. 72' István Szabó On 1/23/2012 6:31 PM, Hunsdon Cary III wrote: Took the mic connector apart, even the Heil mic (gasp!). Could find no short on the connecting wires, although I did clip out the unused posts in the 8-pin connector. Put it back together, connected it to the K3 and, miraculously, like Phil, the hum/buzz is gone. Have no idea what I did, just glad it's gone after only 30 of effort! Tnx for the help! 73, Cary, K4TM Sent from my iPhone in Lynchburg VA - named a Runner Friendly City by Road Runner's Club of America in 2011. On Jan 23, 2012, at 11:28 AM, Phil Hystadphys...@mac.com wrote: Cary, I battled a hum/buzz problem just two weeks ago. After almost a full day spent hunting, experimenting, searching, and doing everything under the sun plus some very helpful dialog from others here on Elecraft forum, the hum/buzz was finally fixed. I did not fix it, it just disappeared. So, here are some things I did... (1) I did all my tests with the monitor on and TX in TEST mode since that in itself showed the hum/buzz. (2) With the help of Jim Brown (K9YC) I used the TX EQualization feature of the K3 to crimp down to minimum the low frequencies of the hum/buzz. Doing this, it appeared that this was indeed a buzz and not a 60-cycle hum because the buzz did not start to be attenuated until after the 400 Hz TXEQ was set to zero and I started working on the next higher frequency band. (3) I was confused as to whether this was front mic and back end mic inputs or just front. I finally determined that this was on the front mic only with 98 percent confidence. It is not 100 percent confidence because all of my experiments to prove one way or the other were a bit scrambled but I think this was front panel mic only. (4) I then focused on the mic itself, an Elecraft MH2 hand mic. Unfortunately it was the only mic I had for the front panel but if you have more then one then I definitely suggest you test them all to see if the hum/buzz is independent of mic. (5) I jiggled and bumped this front panel mic and connector to see if there was some loose connection. Someone suggested florescent lighting as a noise generated and I tested with all lights turned off (see next point). (6) I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected EVERYTHING from the K3. The only two things connected were the 13.8 volt battery on the power and the mic on the front panel. No Antenna, no ground, no other connector to the K3. Hum/Buzz was still there and in that test I also turned off the circuit breaker for all AC in my shack. Did not help. (7) After some tests, and other things, the hum just seemed to disappear and never came back since. My best guess is that it was one of the following: (1) either an external noise source that eventually turned off and my front panel mic was just more susceptible to picking it up; or, (2) the front panel mic itself had some kind of loose connection that just seemed to finally correct itself. I favor cause (1) though. I am kind of hoping it comes back so I can test some more. 73, phil, K7PEH On Jan 23, 2012, at 7:37 AM, Hunsdon Cary III wrote: Don: You know it's hard to tell the difference between a buzz and a 60 hertz hum, at least to my 66 year old ears. HOWEVER, when I disconnected the mic front the front panel connector and used the XMIT button on the front panel, there is no buzz or hum! I'll start troubleshooting the mic cable now! Tnx for your help. 73, Cary, K4TM On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote: Cary, Is it hum or is it actually buzz? Hum is 60 Hz AC, but buzz will be of various frequencies, and it is difficult to tell them apart with just your ears as detectors. Does it disappear if the microphone is not connected? Use XMIT to put the K3 in transmit while you are listening. If it is only when the microphone is connected, you may have a broken wire in the mic cable. 73, Don W3FPR On 1/23/2012 10:10 AM, Hunsdon Cary III wrote: K3 Experts: My K3-100 has been flawless in its performance until yesterday. I had a schedule with W5ZNN who told me I had a hum on my signal; I put my headphones on and sure enough there it was on transmit. I tried plugging the Astron 35M directly into the AC outlet instead of the outlet strip - no luck, hum was still there. I connected the K3 to my SEC 1223 switching power supply and, you guessed it, the hum is still there. I hate to think there's something
Re: [Elecraft] Elecraft Digest, Vol 89, Issue 15
Alfatronix in UK does make very silent switch mode PS. This is excellent down to 500 kHz w/o any noise. I use 9A version with the K3/10. The 3A version is good only if you do not the second RX. They have 20A version for 100W trx as well, but that one a bit expensive. 73, István On 9/14/2011 11:03 PM, David Dunn wrote: Re:] Switch mode PSU I just read the comments and reply in the message below: I have both those PSU, the Sec 1223 is by far the oldest one. It has several birdies best described as rather Raucous Crows, which get worse as the frequency goes lower. 160m is pretty poor. I added several devices in attempts to quieten same, which was achieved to some degree. It is acceptable on all but 160m, where it appears in about 3 places across the band, (not always the same places) The Waters and Stanton Power Mite is cheaper device and does much the same although trips off when the full 20 amps is drawn quite often. It has similar noises on several bands, which I can live with but is about the same as the other on 160. I have not attempted to add filters due to the limited success of the other. There is little doubt the proper transformer PSU's I have are best but where weight is concerned the switch modes units are light and neat for the cost. - Ideal I guess for the VHF folk 73 David G3SCD / VK3DBD _ Message-ID:c27a8ee8-bd45-4069-a787-d8bbb9d59...@alphadene.co.uk Iain, I use a Power Mite from Walters Stanton when not in the shack - is very quiet, both physically and RF wise 73 de M0XDF, K3 #174, P3 #108, KX3 #??? -___ On 10 Sep 2011, at 22:58, Iain Haywood wrote: Hi, Has anyone had any bad experiences using a K3 and a switch mode PSU?. The SEC-1223 looks great aware some can cause problems.. They say 'Totally noise free', that's some claim.. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Private Sales of used Elecraft Rigs
USPS is great to buy goods from US. Reasonable cost and I have never had any issues with them. For transceivers this should be a tracked package. UPS is more costly but also good. István Szabó HA4ZD On 6/2/2011 7:25 PM, Jim Brown wrote: On 6/2/2011 10:06 AM, Jan Erik Holm wrote: I can not understand how going down to the local post office would be a problem and if the customer pays the shipping why would that present a problem for the seller, but then again what do I know? Shipping via the US Postal Service is not something that many of us would choose to do, especially with something as delicate and valuable as a ham transceiver. That's a big part of why UPS and Fed Ex exist. In my case, the major reason I don't want to sell internationally is the matter of customs and duties, with the associated paperwork. Here it's mostly ignorance of what is needed, what the procedures are, etc. I might look at it differently with a ham I knew as the buyer. Nothing parochial beyond ignorance. :) 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 Audio
Could the KX3 tell frequency, mode for disabled? István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 Audio
Great, thank you! István Szabó On 5/27/2011 9:24 PM, Wayne Burdick wrote: Yes, in CW, like the KX1. Wayne N6KR http://www.elecraft.com On May 27, 2011, at 11:56 AM, István Szabóha...@t-online.hu wrote: Could the KX3 tell frequency, mode for disabled? István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 Power Gain
The question is: Is it feasible to improve the KPA500 to full output with k3/10. Why should someone in Europe invest into the 100W PA if it is possible? 73, István Szabó On 3/16/2011 8:03 PM, David Cutter wrote: Well, it's NICE that you can see the tongue firmly in my cheek, Jim. I presume the others on this thread are thinking the same way. 73 David G3UNA On 3/16/2011 11:02 AM, David Cutter wrote: A European model will be required: It might be NICE to be able to drive it at lower power, but I don't understand why it is REQUIRED. It would be NICE to be able to drive it to rated power from a barefoot K3/10 (or K2/10), but that could push the driver to the point where it produces a bit more IM and THD (that is, splatter and harmonics). That's the main reason that firmware for the K3/100 now limits output power to 110 watts. we don't have the gain restriction you have, however, we do like stability and putting lots of gain into one box could be tricky. The Elecraft design engineers are quite sharp, and have carefully thought quite things like this. As a result of my own EE background and ongoing conversations with one of them who is a neighbor (and a serious contester), I'm firmly convinced that they have made a very intelligent set of design decisions about these issues. The last thing our ham bands need is more loud lids spewing trash. 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Is the forum operational?
Have not got any postings for 5 days. 73, István __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] k3 - dual receiver filters
On 2/9/2011 8:28 AM, Wayne Burdick wrote: Ralph, You're right: even if the filters don't have matched offsets, you can use diversity mode. But the main and sub synthesizer frequencies will usually be separated by a fraction of a Hz if the offsets are different, leading to a rolling sound in the receivers (phase precessing, a type of beat note). It can be distracting. This is why most users prefer to use matched filters. 73, Wayne N6KR http://www.elecraft.com On Feb 8, 2011, at 10:14 PM, Ralph Parkerve...@dccnet.com wrote: If you plan to use diversity reception, then the matched filters are necessary... C'mon, guys, this is not true! I use diversity reception with one .400 8 pole and one .500 5 pole, sometimes with one .250 8 pole and one .500 5 pole. Better performance with matched filters = quite likely. Necessary = not. Ralph, VE7XF __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html The effect can be heard on youtube, there is a diversity reception comparison of K3 and FTDX5000 from YO5... http://www.youtube.com/watch?v=iBGy5HNZxEcK3 is an evident winner in diversity reception. 73, István __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 10W dual receivers current?
On 12/31/2010 8:11 PM, Ross Primrose N4RP wrote: Anyone know the key down current draw for a 10W K3 with dual receivers? 73, Ross N4RP In my case 1.35A from 12V. 1.04A with single rx. 73. -- István Szabó Success is the ability to go from failure to failure without losing your enthusiasm. - Winston Churchill (1874 - 1965) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] QST
In December issue of QST the FTDX5000 is tested. István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Power of K3/10
Just learnt a new phenomena, the output is 12W on SSB, 5W on CW. All bands, no power is set per band. Manually setting shows 12watts, actual is only 5W on CW. SSB is OK. Any thoughts? 73, István Szabó __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500
On 9/10/2010 6:10 AM, Phil Townsend wrote: So I got me a ten watt k3... I like it... It is very good. It works. And I'm thinking of a KPA500. But to run the KPA500 I gotta get the 100 watt add-on first. Hu Is that a deal breaker? Might be. If I don't get the hundred water then I can't get fully output.!.?-¥xxx So the true cost of the kPA500 is way more... For me with just ten watts. I really only want ten watts. But when I feel the need, the need for speed (yeah I had to say it) I would like to hit the big lever marked kill and blast them out of their socks. Can't hear me OM?? He switches the amp to kill How's ur copy now om? The screenplay is in my head... Among other things. I would like to be able to upgrade with out the interim 100 watter. Yeah, I know, i won't work but I can ask those guys who sweat solder and cash flow and you never know they just might be able to do it. To me the K2 was a total mind melt...and the K3 is beyond my wildest dreams. Quite an upgrade from the old Heathkits I used to build... No disrespect meant the hotwaters and Indians that may be still lurking. Phil Santa Fe Build your own gear Grow your own food. Sent from my iPad On Sep 9, 2010, at 9:30 PM, Gregn...@cableone.net wrote: Free market feedback...bring back the 1500 watt amp! 73 de Greg-N4CC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person Sent: Thursday, September 09, 2010 8:58 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 It's never as simple as that. I think announcing a product when its on its final approach is fine. I think getting tons of feedback on what you're about to invest heavily in is good business. Maybe the truth of the earlier amps was that there just wasn't enough positive response to them. Maybe this time they used all the input from the previous attempt to refine the price point and feature set. Maybe everytime someone here says the price is too high Eric makes another note. Or someone else says I'll order on the first day - is another note. This is free market research. Easy access to the most likely buyers. A big product mistake by a small company like Elecraft could sink them. I think they took a LOT of notes on the road to completing the K3. Nobody can argue with the results. And when the KPA-500 is released, it will be based on tons of feedback. Doug -- K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Four MOSFETs can be driven out with ten watts id these are MRF150s (or VRF). You probably need to modify the input circuit. For EB104 needs only 6 watts. -- István Szabó Success is the ability to go from failure to failure without losing your enthusiasm. - Winston Churchill (1874 - 1965) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Power Supply
On 8/8/2010 8:55 PM, k2qi@gmail.com wrote: Don't know about anyone else, but I'm perfectly satisfied with the performance of my 25A MFJ switching PS. It's small, light, cheap, and noise (electrical) free. The only caveat is its loud cooling fan. James K2QI Sent via BlackBerry from T-Mobile -Original Message- From: Joe Planiskyjp...@jeffnet.org Sender: elecraft-boun...@mailman.qth.net Date: Sun, 8 Aug 2010 11:46:43 To: Steve Ellingtonn...@carolina.rr.com Cc: Elecraft Reflectorelecraft@mailman.qth.net Subject: Re: [Elecraft] Power Supply Couldn't agree more! I've resolved that I simply will not buy another piece of radio equipment that has fans. 73 -- Joe KB8AP On Aug 8, 2010, at 10:30 AM, Steve Ellington wrote: No Fan please Figure out a way to cool it with heat sinks but please no more fans. Steve N4LQ - Original Message - From: Nicholas Farrarnfar...@bfpacs.com To: elecraftelecraft@mailman.qth.net Sent: Sunday, August 08, 2010 12:24 PM Subject: [Elecraft] Power Supply Would anyone be interested in an Elecraft DC power supply? It would look nice to have a powersupply that matches my K3! ... Would any one be interested either model? Any thoughts? Looking for Hams with an opinion. -- Nicholas W. Farrar Network Engineer / IT Coordinator __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Jim, I am also completely satisfied with MFJ power supply, this is the one which is silent electrically, but do not like the noise of the fan. I removed the top cover and it is silent. MFJ may think about making a new cover or placing the fan 5-10 mm from the cover. This would help. 73 István ha4zd -- István Szabó Success is the ability to go from failure to failure without losing your enthusiasm. - Winston Churchill (1874 - 1965) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Power Supply
On 5/22/2010 6:47 PM, Phil LaMarche wrote: I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that is light and nice for taking it on vacations etc. Any recommendations? Phil Philip LaMarche LaMarche Enterprises, Inc p...@lamarcheenterprises.com www.LaMarcheEnterprises.comhttp://www.lamarcheenterprises.com/ 727-944-3226 727-937-8834 Fax 727-510-5038 Cell www.w9dvm.comhttp://www.w9dvm.com/ K3 #1605 CCA 98-00827 CRA 1701 W9DVM __ 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 Alfatronix in UK does make fantastic SPSs. No noise at all, as good as a linear supply, small and light. I use the 36W version with K3/10W. 73, István -- István Szabó Success is the ability to go from failure to failure without losing your enthusiasm. - Winston Churchill (1874 - 1965) __ 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
