Re: [Elecraft] Looking for a KPA500 Schematic
I think the answer as to why an owner would want a schematic is given to us by the slogan, Elecraft - Hands on Ham RadioSimple as that. Rick K2XT __ 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] ESTATE SALE: K2 with options KPA100 +KAT100 in EC2 Enclosure
Estate radio for sale: K2 Transceiver (serial number in 58xx range) Transceiver includes: KSB2 SSB Module K160RX 160 Module KNB2 Noise Blanker KAF2 Audio Filter KAT2 20 Watt Tuner KIO2 Serial Port Kenwood Microphone Rework Modules KPA100 KAT100 (100 Watt Amplifier and 100 Watt Tuner) Built in an EC2 enclosure (includes serial cable to connect to K2 All manuals I’ve had the station on the air, and despite the frequency display being a little off (probably needs an alignment) everything seems to work great. I do not know who built the K2, but it looks very nice inside. The KPA100/KAT100 combination was purchased by me used from another Elecraft enthusiast, and donated to the SK. IF SOLD SEPARATE: $800 US for the K2 $700 US for the KPA100/KAT100 plus shipping for each. IF SOLD TOGETHER: Complete collection for $1100.00 FREE SHIPPING 73 Jim K8JK __ 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] Looking for a KPA500 Schematic
Hello Scott, I suggest we should also put in a suggestion Contact supp...@elecraft.com Shipping of the entire amplifier could be expensive. The merit of elecraft products are their module design which is very good for overseas user. I simply ship back the defective module instead of the whole machine. Perhaps, elecraft support could give a schematic to the interested kpa500 owners. 73 Johnny VR2XMC 寄件人︰ Scott Manthe scott.man...@gmail.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2015年03月29日 (週日) 8:37 AM 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic Apparently there is some misunderstanding regarding my comment (Or people are responding without reading the entire message closely...). I was NOT responding to the original poster. I was responding to the second commenter, who said that he needed a schematic because his NEW KPA500 had failed. My point was that rather than risk further damaging a NEW, still under warranty KPA500, why not simply let Elecraft fix it. I'm not sure why it's unbelievable that I'd send my NEW amp to Elecraft for repair, but to each his or her own. I wasn't suggesting that no one needs a schematic, just that it probably wasn't the most necessary in that particular situation, where a piece of gear was NEW and under warranty. A supplied schematic would be nice, especially given that the skill level of the average Elecrafter might be somewhat higher than the average ham. 73, Scott, N9AA On 3/27/15 10:53 PM, Wes (N7WS) wrote: Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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] Looking for a KPA500 Schematic
Has anybody asked Elecraft support for a schematic? Cannot imagine they would say no. Just sayin... 73 Gary Vk1ZZ K3, KPA500-FT, KAT500-FT On 29/03/2015 11:03 AM, Johnny Siu vr2...@yahoo.com.hk wrote: Hello Scott, I suggest we should also put in a suggestion Contact supp...@elecraft.com Shipping of the entire amplifier could be expensive. The merit of elecraft products are their module design which is very good for overseas user. I simply ship back the defective module instead of the whole machine. Perhaps, elecraft support could give a schematic to the interested kpa500 owners. 73 Johnny VR2XMC 寄件人︰ Scott Manthe scott.man...@gmail.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2015年03月29日 (週日) 8:37 AM 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic Apparently there is some misunderstanding regarding my comment (Or people are responding without reading the entire message closely...). I was NOT responding to the original poster. I was responding to the second commenter, who said that he needed a schematic because his NEW KPA500 had failed. My point was that rather than risk further damaging a NEW, still under warranty KPA500, why not simply let Elecraft fix it. I'm not sure why it's unbelievable that I'd send my NEW amp to Elecraft for repair, but to each his or her own. I wasn't suggesting that no one needs a schematic, just that it probably wasn't the most necessary in that particular situation, where a piece of gear was NEW and under warranty. A supplied schematic would be nice, especially given that the skill level of the average Elecrafter might be somewhat higher than the average ham. 73, Scott, N9AA On 3/27/15 10:53 PM, Wes (N7WS) wrote: Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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 vk1zzg...@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] Looking for a KPA500 Schematic
A simple enough request - yet such nasty and unhelpful responses. Are they really necessary? And, yes.. schematics should be available for ALL ham equipment. In fact, they should accompany all ham equipment when purchased. Bill W2BLC K-Line __ 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] Looking for a KPA500 Schematic
Good advice, Phil 73, Phil W7OX On 3/27/15 9:07 AM, Phil Hystad wrote: Jerry, You might try my tested and very successful method of working on Elecraft gear. 1. Open up the cabinet (top and bottom). 2. Observe the components inside, looking at each one, contemplating issues, and possible problems. 3. Place the cabinet back together. 4. Ship off to Elecraft. Works every time. Of course, there are other techniques I have heard about involving some variant of home surgery methods. Good luck, 73, phil, K7PEH On Mar 27, 2015, at 8:18 AM, Jerry Knowlton w...@jetbroadband.com wrote: Good morning, It looks like my KPA500 has gone down for the count. Is there a schematic available for this amplifier/ Best regards, Jerry, W1IE __ 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 w...@socal.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] PDF for K3 P30 and P35 replacement
I was wondering if anyone could email me or direct me to where I could download the PDF document on how to change out P30 and P35 on my K3 with the upgraded gold pin headers. MikeVE3WDM __ 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] Looking for a KPA500 Schematic
Bill, You are correct. The schematics should simply be available for download in the elecraft official website. 73 Johnny VR2XMC 寄件人︰ Bill w2...@nycap.rr.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2015年03月28日 (週六) 3:45 AM 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic A simple enough request - yet such nasty and unhelpful responses. Are they really necessary? And, yes.. schematics should be available for ALL ham equipment. In fact, they should accompany all ham equipment when purchased. Bill W2BLC K-Line __ 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 tuner
Seems like you may have a bad connection between the RF board and the tuner, or between the tuner and the BNC connector. I'd investigate that first. If no luck, try removing the tuner altogether and see what happens into a dummy load. If you contact Ekecraft support, they can help you isolate the problem and propose a solution. 73, Matt VK2RQ On 28 Mar 2015, at 5:25 am, George via Elecraft elecraft@mailman.qth.net wrote: No longer matches any antenna. I press ATU tune and hear relays working. While relays click I see 3 watts on led and swr stays at 25.4. Does not matter what antenna I use. If I bypass tuner and connect a dummy load it shows 25.4 to 1 swr also. Planning a trip soon so need it working. Thanks 72 George/W2BPI __ 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 matt.vk...@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] KX3 tuner
I had a similar problem with my KX3. My problem included no receive. The upshot was that the KX3 had been dropped and the antenna BNC connector had been pushed in just a little. The clearances are quite tight there, and the antenna BNC was shorted. I bent the case back into shape, removed the antenna connector, and fixed the short. Everything works again. BTW, the schematic doesn't show the antenna low pass filter. I had to look at the circuit board to be sure that when I was reading zero ohms resistance across the antenna jack, I was not reading an inductor. With the jack disconnected from the board, the resistance should be infinity, or at least very high. (When it is connected to the board, the resistance is very low.) 73 Bill AE6JV On 3/27/15 at 11:25 AM, elecraft@mailman.qth.net (George via Elecraft) wrote: No longer matches any antenna. I press ATU tune and hear relays working. While relays click I see 3 watts on led and swr stays at 25.4. Does not matter what antenna I use. If I bypass tuner and connect a dummy load it shows 25.4 to 1 swr also. Planning a trip soon so need it working. Thanks 72 --- Bill Frantz| Concurrency is hard. 12 out | Periwinkle (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave www.pwpconsult.com |- Jeff Frantz | 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
[Elecraft] Anyone using a DXE NCC-1 with K3?
I've been following this discussion with interest. I've used the NCC-1 with my K3 for several years now. I use one of the DX Engineering 102 active antennas for noise pickup to cancel noise on my Tx vertical antennas. My best success with noise cancellation has been on the higher bands 20-10 meters, but it also helps even on 160. Recently, I've added pairs of matched bandpass filters for additional noise attenuation. DXE offers HP, LP, and BP filters for enhancement of the NCC-1. Anyone with the NCC-1 should check these filters out. They are supposed to be used in matched pairs for the A B inputs. Two sets of matched pairs can be selected using the L/H positions of the Band switch on the front panel. 73,Chuck Guenther NI0CKX1, K2-10, K3 __ 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] Looking for a KPA500 Schematic
On Fri, 27 Mar 2015 12:53:33 -0500 Grant Youngman n...@tx.rr.com wrote: This is very similar to the car quits on the road diagnostic technique. The first step is to pull off the road. Step 2 is to open the hood and stare at the engine. Look everywhere. Look at it very carefully. Is it still there? If the answer is yes, step 3 is to call AAA. :) You might try my tested and very successful method of working on Elecraft gear. 1. Open up the cabinet (top and bottom). 2. Observe the components inside, looking at each one, contemplating issues, and possible problems. 3. Place the cabinet back together. 4. Ship off to Elecraft. __ 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 kg7...@fwarc.org And when the warranty expires wouldn't it be beneficial to have a schematic? Would someone PLEASE just point us to a location where we can d/l the schematic. 73 thanks, Tom KG7CFC -- You don't get to choose how you're going to die, or when. You can decide how you're going to live now. -Joan Baez ^^ --... ...-- / -.- --. --... -.-. ..-. -.-. Tom Taylor KG7CFC openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default, KDE 4.11.2, AMD Phenom X4 955, GeForce GTX 550 Ti (Nvidia 337.19) 16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD FF 36.0, claws-mail 3.10.1 registered linux user 263467 -- You don't get to choose how you're going to die, or when. You can decide how you're going to live now. -Joan Baez ^^ --... ...-- / -.- --. --... -.-. ..-. -.-. Tom Taylor KG7CFC openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default, KDE 4.11.2, AMD Phenom X4 955, GeForce GTX 550 Ti (Nvidia 337.19) 16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD FF 36.0, claws-mail 3.10.1 registered linux user 263467 __ 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] K2 KDSP2 Real Time Clock
Our clocks change this weekend which prompted a GMT time check on K2 #5565. From page 33 of the manual, holding STORE+RCL displays the 5 dashes and tells me that I am not in a DSP menu. For me to proceed I need to know what constitutes a DSP Menu? Secondary Menu, RTC is ON. Any guidance much appreciated and many thanks. 73, Mark G3XYS MacBook Pro __ 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] How Accurate of 50-Ohm Dummy Load for 50 Watt TX Gain Calibration?
Anything under 2:1 will allow the TX GAIN calibration to work, but I'd shot for 1.5:1. Wayne N6KR On Mar 27, 2015, at 5:27 PM, Phil Hystad phys...@mac.com wrote: I have two dummy loads that might be useful for the 50-watt TX-gain calibration but neither of them are dead on with a 1:1 SWR and 50 ohms resistive load. Actually, my smaller 150 watt dummy load is closest with a range of 42 ohms on the load to about 55 ohms on the high end as I step through the frequency ranges of my Antenna analyzer. My 1500-watt dummy load is worse as the resistance goes up to 87 ohms Z (resistive plus reactive) with 54 MHz test signal (using MFJ 259 analyzer). My little Elecraft DL-1 20-watt dummy load (mini-module kit) is best as it is flat 50-ohms resistive across the entire HF spectrum. I am thinking of using and following the advice of Wayne to let it cool down between bands. But… If I want to let the dummy load cool down between bands then can this be done using the automated procedure with the K3 utility or do I have to run the manual procedure. In other words, does the automated procedure allow me to automate the process on a band by band basis. I have not tried it yet because I didn’t want to start something until I was ready to finish it (and I have not installed the latest firmware yet). Question: How accurate should the dummy load be — is an SWR of 1.2:1 and under good enough? Question: Does the K3 Utility allow me to perform the TX gain calibration on a band by band basis? Thanks. 73, phil, K7PEH __ 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] Looking for a KPA500 Schematic
I don't believe that there is a misunderstanding at all. The FCC rules state, among other things: § 97.1 Basis and purpose. The rules and regulations in this part are designed to provide an amateur radio service having a fundamental purpose as expressed in the following principles: (a) Recognition and enhancement of the value of the amateur service to the public as a voluntary noncommercial communication service, particularly with respect to providing emergency communications. (b) Continuation and extension of the amateur's proven ability to contribute to the _advancement of the radio art._ (c) Encouragement and improvement of the amateur service through rules which provide for advancing skills in both the communication and _technical phases of the art._ (d) Expansion of the existing reservoir within the amateur radio service of trained operators, _technicians, and electronics experts.__ _ How does all of this fit with having a failure and rather than troubleshooting that failure first and possibly fixing it simply (i.e a cold solder joint), boxing up the radio and shipping it off to the factory for repair, so as to avoid further damage? At the rate this hobby is going downhill I can envision the day when radios are returned to the factory to get a blown fuse changed. On 3/28/2015 5:37 PM, Scott Manthe wrote: Apparently there is some misunderstanding regarding my comment (Or people are responding without reading the entire message closely...). I was NOT responding to the original poster. I was responding to the second commenter, who said that he needed a schematic because his NEW KPA500 had failed. My point was that rather than risk further damaging a NEW, still under warranty KPA500, why not simply let Elecraft fix it. I'm not sure why it's unbelievable that I'd send my NEW amp to Elecraft for repair, but to each his or her own. I wasn't suggesting that no one needs a schematic, just that it probably wasn't the most necessary in that particular situation, where a piece of gear was NEW and under warranty. A supplied schematic would be nice, especially given that the skill level of the average Elecrafter might be somewhat higher than the average ham. 73, Scott, N9AA On 3/27/15 10:53 PM, Wes (N7WS) wrote: Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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 ANT feature request
I would like for the KX3 ANT button press/hold to select a second set of ATU tuned elements for another antenna which I select with an external antenna switch. I have two antennas which need different tuner settings for each HF band. Whenever I change from one to the other I have to retune the ATU and vice versa when I go back to the other one. Would be so much quicker and easier to just select ANT 1 or 2 with that unused button on the KX3. __ 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] FS: W2 Wattmeter
Selling my Elecraft W2 wattmeter, it looks and works like new, from a non-smoking environment. Comes with the manual, RS232 interface cable, power cord with power pole connector and cable to connect unit to the sensor. The sensor is the 1.8 - 54 MHz 2 KW model. I bought it from the original purchaser who assembled it, I just bought an LP-100A to replace it with so no longer need it. I'll ship and insure it in the US via Priority Mail for $210. PayPal or Postal Money Order Thanks Tim NZ8J __ 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] How Accurate of 50-Ohm Dummy Load for 50 Watt TX Gain Calibration?
I have two dummy loads that might be useful for the 50-watt TX-gain calibration but neither of them are dead on with a 1:1 SWR and 50 ohms resistive load. Actually, my smaller 150 watt dummy load is closest with a range of 42 ohms on the load to about 55 ohms on the high end as I step through the frequency ranges of my Antenna analyzer. My 1500-watt dummy load is worse as the resistance goes up to 87 ohms Z (resistive plus reactive) with 54 MHz test signal (using MFJ 259 analyzer). My little Elecraft DL-1 20-watt dummy load (mini-module kit) is best as it is flat 50-ohms resistive across the entire HF spectrum. I am thinking of using and following the advice of Wayne to let it cool down between bands. But… If I want to let the dummy load cool down between bands then can this be done using the automated procedure with the K3 utility or do I have to run the manual procedure. In other words, does the automated procedure allow me to automate the process on a band by band basis. I have not tried it yet because I didn’t want to start something until I was ready to finish it (and I have not installed the latest firmware yet). Question: How accurate should the dummy load be — is an SWR of 1.2:1 and under good enough? Question: Does the K3 Utility allow me to perform the TX gain calibration on a band by band basis? Thanks. 73, phil, K7PEH __ 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] Ping
Ping. Is anybody out there? -- 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3...@qrp4fun.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] How Accurate of 50-Ohm Dummy Load for 50 Watt TX Gain Calibration?
Phil and all, There are two types of dummy loads - one is simply to provide a load to your transceiver or amplifier for a quick sanity check that the transceiver or amp is providing output and is capable of transmitting a signal. The other type of dummy load is one used for calibration and/or measurement of the output power. The first type does not have to be exactly 50 ohms non-reactive - it is only to protect the transceiver or amplifier, but the 2nd type needs to have a real 50 ohm non-reactive impedance if the results of the calibration or measurement is to be valid. So it all depends on what you are using it for and the accuracy of the results you expect. In other words, the dummy load that I switch my transceiver to when the antennas are not in use does not need to be accurate, but the dummy load that I use for the K3 TX gain calibration does need to the 50 ohms non-reactive over the frequency range that is to be calibrated (1.8kHz to 54MHz). In the past, I have mentioned several ways of obtaining good and accurate 50 ohm non-reactive dummy loads. Those range from the 75 watt dummy load available from Ridge Equipment, to those VHF/UHF dummy loads available at hamfests. Add to that good dummy loads that can be homebrewed - Caddock 50 ohm thick film resistors mounted on an adequate heatsink, or several other sources for homebrew dummy loads in a quart can filled with mineral oil. Yes, the accuracy of the 50 ohm non-reactive load will affect your results - get a good one if you want good results. The K3Utility is an automated process which proceeds from band to band automatically. There is no way to pause it to allow the dummy load to cool down. If you want to use a dummy load of lesser wattage than the required transmitter output (50 watts), then you will have to do the TX gain Calibration manually from the K3 menu. 73, Don W3FPR On 3/27/2015 8:27 PM, Phil Hystad wrote: I have two dummy loads that might be useful for the 50-watt TX-gain calibration but neither of them are dead on with a 1:1 SWR and 50 ohms resistive load. Actually, my smaller 150 watt dummy load is closest with a range of 42 ohms on the load to about 55 ohms on the high end as I step through the frequency ranges of my Antenna analyzer. My 1500-watt dummy load is worse as the resistance goes up to 87 ohms Z (resistive plus reactive) with 54 MHz test signal (using MFJ 259 analyzer). My little Elecraft DL-1 20-watt dummy load (mini-module kit) is best as it is flat 50-ohms resistive across the entire HF spectrum. I am thinking of using and following the advice of Wayne to let it cool down between bands. But… If I want to let the dummy load cool down between bands then can this be done using the automated procedure with the K3 utility or do I have to run the manual procedure. In other words, does the automated procedure allow me to automate the process on a band by band basis. I have not tried it yet because I didn’t want to start something until I was ready to finish it (and I have not installed the latest firmware yet). Question: How accurate should the dummy load be — is an SWR of 1.2:1 and under good enough? Question: Does the K3 Utility allow me to perform the TX gain calibration on a band by band basis? __ 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] Ping
599 001...contest Gary Vk1ZZ K3, KPA500-FT, KAT500-FT On 29/03/2015 9:32 AM, Ian Kahn km4ik@gmail.com wrote: Your email is 59 into South Carolina. :-) On Mar 28, 2015 7:23 PM, Ingo Meyer, DK3RED ma...@qrp4fun.de wrote: Ping. Is anybody out there? -- 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3...@qrp4fun.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 km4ik@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 vk1zzg...@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] Ping
Your email is 59 into South Carolina. :-) On Mar 28, 2015 7:23 PM, Ingo Meyer, DK3RED ma...@qrp4fun.de wrote: Ping. Is anybody out there? -- 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3...@qrp4fun.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 km4ik@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] K2 KDSP2 Real Time Clock
Mark, You must first tap DISPLAY to get into the DSP menu. Without being in a DSP menu, a hold of STORE+RCL normally puts you into a Direct Frequency Entry state which will display the dashes that you see. 73, Don W3FPR On 3/28/2015 10:55 AM, Mark Raybould wrote: Our clocks change this weekend which prompted a GMT time check on K2 #5565. From page 33 of the manual, holding STORE+RCL displays the 5 dashes and tells me that I am not in a DSP menu. For me to proceed I need to know what constitutes a DSP Menu? Secondary Menu, RTC is ON. Any guidance much appreciated and many thanks. __ 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] How Accurate of 50-Ohm Dummy Load for 50 Watt TX Gain Calibration?
Phil, Your 20-watt dummy load will work with the automated procedure, and it is the best one because if the SWR is over some threshold you'll get a SWR too high, calibration failed message. The 20-watt load is very unlikely to overheat; my 10-watt load did not overheat, because the 50-watt transmissions are short. However, the sure way to make it work is to cool it with a sandwich bag filled with crushed ice. The automated version only takes a minute or so to do and it only has to be done once. If you are unsure, you can follow Wayne's advice and do it manually, allowing some time to cool in between each band. 73, Tony KT0NY __ 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] Looking for a KPA500 Schematic
Has anybody asked Elecraft support for a schematic? I was about to ask the same thing. This thread is just plain silly. When I got my KPA, I simply called them up and asked for one. They obliged. So simple. I do happen to agree that it should have been provided in the package though. 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] SSB net announcement
Phil, why don't you hold it on 17 meters this weekend? A number of the SOTA crowd that frequent the SSB freq's from summits went to 17 and 12 meters today. SFI is pretty high relative to what it has been, 17 might be a good analog for 20. 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 3/28/2015 8:47 PM, Phil Shepard wrote: The weekly Elecraft SSB net meets Sunday at 1800Z on 14.3035 MHz. There is a big contest underway, which may make conditions rough; but what the heck, let’s give it a try. I will be net control from western Oregon. See you there. __ 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 supply fan
I run my K3 from a Pyramid ps21kx power supply, a linear supply which has done a great job for a couple of years. But it has a fan, and when there is nothing going on in the shack, the fan is audible. So I got a temp control gadget on eBay for 15 bucks shipped from the U.S. I opened up the power supply. I opened up the supply, cut the hot lead to the fan and brought out a little twisted pair to an R/C connector so I could control the fan with the temp gizmo. I stuck the sensor next to one of the power transistors with some picture-mounting gum. Now all is quiet until I transmit. Then it kicks on and stays on (you can set both in and out temperatures), so everything stays nice and cool as well as nice and quiet. If you're looking for a good power source for your K3, I recommend the Pyramid, and I also recommend this simple mod. Tony KT0NY __ 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] Looking for a KPA500 Schematic
Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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] Looking for a KPA500 Schematic
Apparently there is some misunderstanding regarding my comment (Or people are responding without reading the entire message closely...). I was NOT responding to the original poster. I was responding to the second commenter, who said that he needed a schematic because his NEW KPA500 had failed. My point was that rather than risk further damaging a NEW, still under warranty KPA500, why not simply let Elecraft fix it. I'm not sure why it's unbelievable that I'd send my NEW amp to Elecraft for repair, but to each his or her own. I wasn't suggesting that no one needs a schematic, just that it probably wasn't the most necessary in that particular situation, where a piece of gear was NEW and under warranty. A supplied schematic would be nice, especially given that the skill level of the average Elecrafter might be somewhat higher than the average ham. 73, Scott, N9AA On 3/27/15 10:53 PM, Wes (N7WS) wrote: Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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 announcement
The weekly Elecraft SSB net meets Sunday at 1800Z on 14.3035 MHz. There is a big contest underway, which may make conditions rough; but what the heck, let’s give it a try. I will be net control from western Oregon. See you there. 73, Phil, NS7P __ 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] Looking for a KPA500 Schematic
There is a set of 17 pages pdf that can be downloaded from www.mods.dk No idea how old it is ... Harlan NC3C Sent from my Verizon Wireless 4G LTE smartphone div Original message /divdivFrom: Gary Gregory vk1zzg...@gmail.com /divdivDate:03/28/2015 10:06 PM (GMT-05:00) /divdivTo: Johnny Siu vr2...@yahoo.com.hk /divdivCc: Elecraft List elecraft@mailman.qth.net /divdivSubject: Re: [Elecraft] Looking for a KPA500 Schematic /divdiv /divHas anybody asked Elecraft support for a schematic? Cannot imagine they would say no. Just sayin... 73 Gary Vk1ZZ K3, KPA500-FT, KAT500-FT On 29/03/2015 11:03 AM, Johnny Siu vr2...@yahoo.com.hk wrote: Hello Scott, I suggest we should also put in a suggestion Contact supp...@elecraft.com Shipping of the entire amplifier could be expensive. The merit of elecraft products are their module design which is very good for overseas user. I simply ship back the defective module instead of the whole machine. Perhaps, elecraft support could give a schematic to the interested kpa500 owners. 73 Johnny VR2XMC 寄件人︰ Scott Manthe scott.man...@gmail.com 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2015年03月29日 (週日) 8:37 AM 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic Apparently there is some misunderstanding regarding my comment (Or people are responding without reading the entire message closely...). I was NOT responding to the original poster. I was responding to the second commenter, who said that he needed a schematic because his NEW KPA500 had failed. My point was that rather than risk further damaging a NEW, still under warranty KPA500, why not simply let Elecraft fix it. I'm not sure why it's unbelievable that I'd send my NEW amp to Elecraft for repair, but to each his or her own. I wasn't suggesting that no one needs a schematic, just that it probably wasn't the most necessary in that particular situation, where a piece of gear was NEW and under warranty. A supplied schematic would be nice, especially given that the skill level of the average Elecrafter might be somewhat higher than the average ham. 73, Scott, N9AA On 3/27/15 10:53 PM, Wes (N7WS) wrote: Unbelievable. On 3/27/2015 10:40 AM, Scott Manthe wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA __ 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 vk1zzg...@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 hsherr...@reagan.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] Looking for a KPA500 Schematic
Lots of people like to have an understanding of what is under the hood, whether they can fix it or not. ;-) BTW it isn't that hard to find a copy on the Internet, I am rather surprised Elecraft don't supply them with the amplifiers, it never crossed my mind that they wouldn't. 73 David Anderson GM4JJJ On 27 Mar 2015, at 17:40, Scott Manthe scott.man...@gmail.com wrote: Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will. 73, Scott, N9AA On 3/27/15 12:44 PM, Harry Yingst via Elecraft wrote: I also would like the schematic My NEW KPA500 also just failed today From: Phil Hystad phys...@mac.com To: Jerry Knowlton w...@jetbroadband.com Cc: elecraft@mailman.qth.net Sent: Friday, March 27, 2015 12:07 PM Subject: Re: [Elecraft] Looking for a KPA500 Schematic Jerry, You might try my tested and very successful method of working on Elecraft gear. 1. Open up the cabinet (top and bottom). 2. Observe the components inside, looking at each one, contemplating issues, and possible problems. 3. Place the cabinet back together. 4. Ship off to Elecraft. Works every time. Of course, there are other techniques I have heard about involving some variant of home surgery methods. Good luck, 73, phil, K7PEH __ 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 gm4...@yahoo.co.uk __ 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] GA QSO Party
As we all gear up for the CQ WPX SSB contest this weekend, I would like to remind everyone to jump back in in two weeks, April 11 and 12, for the Georgia QSO Party. This is one of the largest, best state QSO parties in the country. We hope to have all 159 counties on the air, for all the county-hunters who are looking for those rare Georgia counties. I'll be on the air for the entire 20 hours of the party from my home QTH in Fulton County. For more information, please see http://www.georgiaqsoparty.org. Hope to see you in the party! 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 __ 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
