[Elecraft] [K3] Firmware update failed - need help
Tried to update the K3 firmware to 4.67. First, I updated the K3 Utility to the latest version 1.13.5.9. The moment I hit Send All New Firm ware to K3, the K3 went to unresponsive state with MCU LD on the LCD and the TX LED flashing. This happened before. That time I was able to snap it from this state by holding POWER button while powering the rig. This time, however, this did not help. The K3 Utility cannot connect to to the rig and just keep trying with different bod rates unsuccessfully. I do have P3 as well. I know the drill, I disconnected P3 and connected K3 directly, but it did not help as well. I am sure somebody run into this problem before. Please, help! My K3 S/N is 4653 Last time when this happened, I was using dedicated RS232 port, this time I use USB/Serial adapter with FTDI chip and different computer. I don't know if this can be a problem. Thanks, Igor, N1YX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] INTERNET PURCHASING
This reminds me about 25 years ago similar protests were sound when all drafting was switching to computers and hand drafters were unemployed and had to change profession. You cannot stop progress people. Local authorities have to find different ways to fund their services. Local florist may want to find other ways to do business, like, for example, sell over the internet as well. I live on the border with New Hampshire. NO sales tax , NO state income tax and surprisingly, they are doing rather well, in many ways better than we here in Massachusetts, with all these taxes and more... Igor, N1YX - Original Message - From: "KENT TRIMBLE" To: "Elecraft Reflector" Sent: Wednesday, May 30, 2012 3:26:11 PM Subject: [Elecraft] INTERNET PURCHASING David is absolutely right (frighteningly right) and unless people start understanding the ramifications of what they are creating each time they purchase something over the internet they will find themselves living in communities as blighted as Detroit. Internet sales are almost universally tax-free which means local communities are deprived of revenue crucially needed to maintain quality living for their citizens. Every time you think you save a buck by ordering online, you actually hurt your local schools, hospitals, fire departments, special learning centers, and all manner of charities. Every locally owned business in your town, whether you live in a metropolis or a village, contributes a sizable portion of its sales-revenue to other people. Just outright gives it to them . . . whether in the form of taxes or in the form of donations. The fewer sales they have (because you have taken your business to anonymous internet vendors), the less money they have available to give to anybody. In the end, YOU suffer. You want new uniforms for your kid's t-ball team? The first place you go is not to your own pocket. Heaven forbid! No, the first place you turn are to your local businessmen and businesswomen. You say to them, "can you help us out" and suddenly you are taken aback when they reply, "With what?" We have no discretionary funds this year. We're doing all we can to keep our heads above water as it is. Sorry about the kids." In the end, YOU suffer. The people who sell you flowers through an 800 number or over the internet will NEVER help you buy uniforms for your boys. They will NEVER contribute to your local rescue squad's extrication equipment. They don't give a darn about your community. They are faceless, nameless, and do their banking in THEIR home town where, if they even do so, they get credit for charitable donations in their name with YOUR money! But not so for your local florist who is nickeled and dimed (by you and me) month after month, year after year, for worthy hometown projects, and who gratefully gives back to your community a portion of the money you have spent with him. Likewise for every locally-owned store. I buy nothing over the internet except those items I simply cannot buy here in town. I WANT my local businesses to survive. I am HAPPY to pay a few bucks more to make that happen. I am THRILLED when I see boarded up store-front buildings . . . that are no longer boarded up. 73, Kent K9ZTV On 5/30/2012 6:32 AM, David Christ wrote: > This is considered bad form in the bicycle world and I assume it is > the same in the Ham world as well. It is unfair to the dealer who > has invested money in having stock on hand to for you take advantage > of his investment and then give him nothing in return. At least buy > something else from him even if small. > > If you want a local shop to be there when you need something at a > moment's notice you need to spend money there at other times. If it > costs a little more, that is the price of keeping him in business. I > will admit that if the price difference is too great you are > justified in taking your business elsewhere. > > Disclaimer: I was a shop owner once so this is a sore point. > > David K0LUM > > >> The advantage is you can go to W&S, look at and try the rig, then >> purchase it direct from 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 > > > > - > No virus found in this message. > Checked by AVG -www.avg.com > Version: 2012.0.2178 / Virus Database: 2425/5033 - Release Date: 05/30/12 > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please
Re: [Elecraft] For the CW OPS
Actually, something like this exists. KS7D made app "K3iNetwork" that allows you to conduct remote CW/Digital QSO from iPhone or any other i-device connected to internet . You just need your K3 connected to computer and computer on internet. It is pretty much like having K3 utility connected to the K3. You do not use dash-dot keys, just type the letters. K3 does rest of the work (decoding etc.) 73, Igor, N1YX > Add in a second phone and additional app(s) and this could be used to remote >operate an Elecraft radio in CW mode. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Filter questions
Actually, my first point exactly is that hearing is subjective, the setting that works for you may not be good for somebody else. And there is nothing wrong with this. My other point is that from technical point of view, you reduce significance of the DSP filter with this setup, which is fact as opposed to categorical unbased statement from somebody that this is not true. That is all and I consider this thread is closed for me. 73, Igor, N1YX - Original Message - From: "Dave Hachadorian" To: "Elecraft Reflector" Sent: Wednesday, March 28, 2012 3:55:56 PM Subject: Re: [Elecraft] K3 Filter questions Igor, You are missing the point. K8ZOA's measurements were for a continuous carrier. You can't measure speech intelligibility with the K3's dBV meter. My recommendation for DSP bandwidth of 2.1 KHz and 1.8 crystal filter were based on what I consider the best compromise between bandwidth and intelligibility for SSB human speech. Look at it this way - My ears find SSB speech very intelligible with a DSP bandwidth of 2.1 KHz. You can put a 1.8 crystal filter in front of that DSP and SSB STILL is very intelligible, plus you have the advantage of a nice tight roofing filter to keep the hardware AGC from pumping. When you start reducing the DSP bandwidth below 2.1 KHz, intelligibility starts to become very dependent on the voice characteristics of the received signal, so you have to keep fiddling with the DSP controls. You don't want to be fiddling with the controls if you are running at 200 QSO's per hour. I'm saying that with DSP 2.1 and a 1.8 roofing filter, one can pretty much leave the controls alone for the duration of the contest. After the contest is over, you can go back to 2.7/2.7 filters for more natural-sounding audio. Dave Hachadorian, K6LL Yuma, Arizona -Original Message- From: k.i...@comcast.net Sent: Wednesday, March 28, 2012 11:05 AM To: j...@audiosystemsgroup.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Filter questions If it pleases you to use DSP set wider than roofing filter - by all means, go for it. I would not, however, clame objectivity based on my subjective experience or somebody's valuable opinion and simplistic explanation , I perefer measurements performed on good lab equipment. K8ZOA did some of the measurements on 500 Hz filter, but most of them probably applicable for the 1.8kHz filter. See report here: http://www.cliftonlaboratories.com/elecraft_k3_noise_blanker_and_crystal_dsp_filtering.htm In his measuremetns, setting DSP wider than the actual roofing filter actually degraded the total response in the stop band. 73, Igor, N1YX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Filter questions
If it pleases you to use DSP set wider than roofing filter - by all means, go for it. I would not, however, clame objectivity based on my subjective experience or somebody's valuable opinion and simplistic explanation , I perefer measurements performed on good lab equipment. K8ZOA did some of the measurements on 500 Hz filter, but most of them probably applicable for the 1.8kHz filter. See report here: http://www.cliftonlaboratories.com/elecraft_k3_noise_blanker_and_crystal_dsp_filtering.htm In his measuremetns, setting DSP wider than the actual roofing filter actually degraded the total response in the stop band. 73, Igor, N1YX - Original Message - From: "Jim Brown" To: elecraft@mailman.qth.net Sent: Tuesday, March 27, 2012 2:33:14 PM Subject: Re: [Elecraft] K3 Filter questions On 3/27/2012 11:12 AM, k.i...@comcast.net wrote: > I am pretty sure the DSP filter is effective only if it is narrower than the > roofing filter. Not at all true. When reading K6LL's comments, bear in mind that he is a VERY good operator and engineer. I value anything he has to say. I posted yesterday that I had done almost the same thing -- told the K3 that my 1.8 kHz filter was a 2 kHz filter so that it switches in at 2 kHz -- and that I was pretty pleased with the result. When there are multiple filters in any signal chain their responses combine (the proper engineering term is "cascade") so that the total filtering capability is that of both added together. This is most pronounced when two filters have approximately the same bandwidth and are set to the same frequency. The way this works is that if filter #1 is rejecting by 6 dB at a given off-frequency point and filter #2 is attenuating by 4 dB, the combined rejection will be 10 dB. This is approximately what K6LL and I are doing. 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
Re: [Elecraft] K3 Filter questions
I am pretty sure the DSP filter is effective only if it is narrower than the roofing filter. In your setup the DSP filter is pretty much turned off. Please, don't forget, the crystal filters in K3 are ROOFING filters, they are protecting next IF stages and the DSP from strong near by signals, improving dynamic range . The main filtering is done in DSP. There is white paper on the matter somewhere on Elecraft web site (by Eric S). 73, Igor, N1YX - Original Message - From: "Dave Hachadorian" To: "Elecraft Reflector" Sent: Tuesday, March 27, 2012 12:52:51 PM Subject: Re: [Elecraft] K3 Filter questions I used the 1.8 for the entire WPX SSB contest, with a DSP width of 2.1 KHz. It sounded great. I never messed with any of the settings for the entire contest. To get this combination of DSP=2.1 and crystal=1.8, one has to install the 1.8 filter as if it were a 2.1, so it switches in at DSP=2.1. This installation setup is most easily done using the K3 Utility. In practice, normalize, then use high cut until the filter switches in. To me, the audio sounds best using that technique. WPX SSB is traditionally the worst-case QRM-fest, and the 1.8 filter was just the ticket for dealing with it. Dave Hachadorian, K6LL Yuma, Arizona >From experience, I had both the 2.1 and 1.8 fitted and by >judicious use of the Hi Cut/Lo Cut adjustment I find the 1.8 far better in practice. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SDR-IF and I/Q questions
Richard, SDR is essentially a direct conversion radio, so it is much simpler than conventional heterodyne radio. If you want to use SDR_IF you will need something like additional SDR, like S oftRock to convert K3 IF signal to I/Q signals. I have this setup and it works fine, without any images. The fact that you have images usually indication that one of the signals (I or Q) is not reaching your sound card. Y our sound card shall have stereo input with good separation of the channels for this to work. Most built in laptop sound cards will not work because they have mono input. For "on par" performance you need one of the expensive sound cards with conversion rate of 200 kHz or near of . E-MU brand comes to mind but there are others. Like SDR, P3 also converts the IF signal to I/Q, but does it digitally, so these signals are not available to outside world. P3, at least in it's current design, cannot accept externally generated I/Q signals either. Since the KX3 by nature is SDR, the output of it is the IQ signals and so P3 cannot be used with it. 73, Igor, N1YX - Original Message - From: "Richard Fjeld" To: "elecraft posting" Sent: Monday, November 14, 2011 1:49:59 AM Subject: [Elecraft] SDR-IF and I/Q questions I didn't get any responses to my questions asking for info about those who were successfully running SDR-IF software on a par with a P3, or from those who were not successful. I did not find any ground loops in my system, and I still do not know why some SDR-IF programs run with mirrored images and a few do not. IMHO, those that do not have mirrored images with my computer, are not on par with a P3. So, I am moving on to other things. I have decided that, at my age, life is too short for SDR. I am greatly disappointed to learn that the KX3 will not accept a P3. Richard Fjeld, n0ce rpfj...@embarqmail.com I'd rather be learning. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Yamaha CM500 bias box problem
The black box besides the battery holder and connectors has just one resistor. If I remember correctly, you should be able to open the box and check. I had to open mine because of failed solder connection. The wire used for "pig tail" connector is pretty weak, it brakes easily. Check the wire and the battery holder connections. 73, Igor, N1YX - Original Message - From: "Jorge Diez - CX6VM" To: "Elecraft Reflector" Sent: Monday, October 31, 2011 1:25:13 PM Subject: [Elecraft] Yamaha CM500 bias box problem Hello, it´s possible that the small black bias box of the Yamaha CM500 was damaged if I use bias in the K3? I was using DXDoubler for SO2R last weekend. CM500 connected to DXDoubler so I needed to use the black bias box. Since I couldn´t record M1-M4 messages in the K3 from the CM500 connected to the DXDoubler, I connected directly CM500 (without black bias box) in the back of the K3 and turn ON bias and record the messages. Then I connected CM500 with bias box on the DXDoubler, but I forgot to turn OFF bias in the K3 menu. And I noticed that it stop working. I tested again the CM500 on the K3 and work properly, so the problem is in the small bias box. No signs of damage, but I cannot open it to see inside. Any idea how to repair it or to buy another one? 73, Jorge CX6VM/CW5W __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Rb & GPS DO comparison
The drift rate of 1e-11 per month or so is regarded after one month of conituous operation. The first month after turn-on is different. It usually takes few days, sometimes couple weeks to reach the final drift rate. After that it is pretty much constant slope. Every time you turn off the clock and then turn i t on again, depends on the duration of off time, the frequency will drift initially at higher rate. It takes time to Rubidium atoms to reach equilibrium position in the cloud inside the resonance cell. When you turn the unit off, the atoms of rubidium (which is metal alk ali by the way) will fall down (gravity) and form little metal drop on the bottom of the cell. When you turn it on, the cell is heated and the atoms evaporate and go into the cloud form. By the way, ambient temperature variations have much higher effect on frequency than just aging. Magnetic fields are also detrimental. Don't place it in close proximity to CRT monitors or dynamic speakers. Igor, N1YX - Original Message - From: "Tony Estep" To: elecraft@mailman.qth.net Sent: Thursday, July 21, 2011 11:33:54 AM Subject: Re: [Elecraft] Rb & GPS DO comparison On Wed, Jul 20, 2011 at 7:08 PM, Igor Kosvin wrote: > ...aging drift - better than 1e-11 per month. Useful life of LPRO - usually > 15 years. > Make your math how much it drifts over life === An interesting question. If the drift is always in the same direction, you get the (apparently) obvious answer. If, at the other extreme, each month's drift is independent of the previous month's, then the expected frequency at the end will be described by a Gaussian distribution with mean = the starting point, and standard deviation scaled by the square root of the number of months. In practice, one would expect some serial correlation between monthly drifts, so a bias would be added to the expected mean. 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 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 netbook
There are many USB sound cards/adaptors on the market with stereo input. For example, Griffin Technology iMic USB Audio D evice, about $23 on Amazon. stay away from el-chea po dongles, these are mostly mono. Igor, N1YX - Original Message - From: "Jens Petersen" To: "Elecraft Reflector" Sent: Thursday, June 2, 2011 4:39:27 AM Subject: Re: [Elecraft] KX3 netbook On Wed, 1 Jun 2011 14:07:06 -0700, you wrote: > A while back Wayne suggested using a netbook with the KX3 to log and run SDR > software. Someone else –I don’t remember who - warned that most net books > don’t have stereo mic inputs. I looked for a light cheap laptop with stereo > inputs. I checked a couple of dozen from Asus, hp, Lenovo, and Toshiba. No > netbook that I can find has stereo inputs. All, of course have stereo > outputs. My new Lenovo S10-3 netbook does have stereo input 16bit 48000Hz. -- OV1A Jens Sent from my desktop PC with a nice big screen and a real keyboard. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 shutdown
Sounds like you may have problem with your power supply. Monitor power supply voltage while you key the rig, see if it stays correct. If it does, check the power cable and see if the APP connectors are fully engaged and not just partially inserted. Try to key it with reduced power output level and see if it still shuts down. Just for sanity check, if possible, try different power supply and/or power cable. Igor, N1YX - Original Message - From: "John/K8AZT" To: elecraft@mailman.qth.net Sent: Friday, May 27, 2011 11:25:22 AM Subject: [Elecraft] K3 shutdown My K3 sn1693 has just started exhibiting a troubling problem. Operation in CW when I put key down, the rig shuts off completely. When turning back on, it forgets frequency that was set just prior to shut down. I thought this might be rf in shack, so tried with dummy load and same problem. Any suggestions or has anyone else experienced this behavior? 73, John/K8AZT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3
First, check microphone gain. For the beginning turn it to the half scale. Second, in the CONFIG menu (see manual) select correct microphone input. K3 has front panel connector and back panel connector. In addition, if you use condenser microphone (or electret) select bias to the microphone. If that doesn't help, just for the kicks, check your microphone with other radio. 73, Igor, N1YX - Original Message - From: "Scott McDowell" To: elecraft@mailman.qth.net Sent: Thursday, April 7, 2011 1:02:45 PM Subject: [Elecraft] K3 Hello I have a brand new K3/100/F that I am having a problem with. I really think it is more the operator than the transceiver. It works fine in CW mode, but has no output in ssb mode. The transmit led comes on when the mic button is depressed but has no audio output. I feel that something is not set right on the front panel, but have no idea what. Any ideas would be appreciated. I had the idea that a factory built model would work straight out of the box? Scott n5sm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF and Trimble Thunderbolts
This is very valid question. Each method has advantages and disadvanages. The GPS based reference needs antenna and ability to see satellites. If you lose satellites you enter so-called holdover mode, when your stability depends on local oscillator. In case of Trimble unit this will be free running OCXO - not too bad if the GPS will acquire satellites back in reasonable time. I am not familiar with the Trimble unit and how it handles holdover, I guess our friends with these units can tell us what happens to the frequency if they disconnect GPS antenna from the unit. The LPRO is very stable frequency source and it does not require any antennas. For most of applications it will also give very good phase noise - probably not much worse than the OCXO in the Trimble unit. T he disadvantage of LPRO - limited life. New LPRO units were designed to service life of about 20 years. The units you buy on the web are used - you don't know how much life is left in it, it is quite possible it will fade in year or two if it was operated continuously for many years. It also can be little off frequency - the frequency of LPRO is adjustable (if I remember correctly). 73, Igor, N1YX - Original Message - From: "G4ILO Julian" To: elecraft@mailman.qth.net Sent: Tuesday, April 5, 2011 11:09:26 AM Subject: Re: [Elecraft] K3EXREF and Trimble Thunderbolts What are the advantages / disadvantages of this type of frequency standard over the Efratom LPRO-101 which is a rubidium standard? Julian, G4ILO - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/K3EXREF-and-Trimble-Thunderbolts-tp6242158p6242619.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 transmit/amplifier relay
Joe> What's not clear? Key Out is the logical or of the key input Joe> (straight key, internal keyer, PTT and VOX). A low on any of Joe> those inputs/internally generated signals reflect as a low on Joe> the Key Out whether the K3 is actually generating RF or not Joe> (e.g. Test mode or CW in PTT mode with no external PTT). Joe, If it would be so clear, this issue would not pop up every month on this list. Something along the lines in your quote above (after the question mark) in the manual under Key Out description probably c ould be sufficient. 73, Igor, N1YX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] P3 Feature Request
I don't know about the XIT, I don't use it that often. But when split is active and VFO B is transmit frequency, it would be nice if the color of VFO B cursor changes to reflect that. 73, Igor, N1YX - Original Message - From: "Alan Bloom" To: "Stan Gibbs" Cc: elecraft@mailman.qth.net Sent: Monday, March 14, 2011 12:32:38 PM Subject: Re: [Elecraft] P3 Feature Request I agree that XIT is probably used much less often than VFO B to control the transmit frequency. I think a lot of people use RIT (which does affect the cursor frequency on the P3) but fewer use XIT. In either case, it would be nice to have an indication of the actual transmit frequency on the P3. I'm not sure that another cursor is the right answer though. The display is already crowded with two cursors and up to two markers. I'm thinking along the lines of little arrows at the top and bottom of the screen, where the frequency tic marks are located. They could be colored red to make them stand out. Alan On Sun, 2011-03-13 at 21:19 -0700, Stan Gibbs wrote: > n...@cableone.net wrote: > > > > Hi All - Perhaps this was mentioned before and I missed it.but I would > > like > > to see a marker that would act as a marker when using XIT. > > > > If you enable the SPLIT function, VFO B will control your TX frequency and > the P3 has a purple cursor that shows where VFO B is in the band. I use > this existing capability all the time to work pileups. Does XIT have some > other advantage that I'm missing? > > > - > 73, Stan - KR7C > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/P3-Feature-Request-tp6167238p6167848.html > > Sent from the Elecraft mailing list archive at Nabble.com. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 transmit/amplifier relay
Joe > This is the way Wayne designed the J oe > radio. Fine, if this cannot be corrected, some explanation need to be given in owners manual or specs, so people know what to expect. As it is stated now, it is not clear. Joe > If you don't like it, get a YaeComWood and stop fussing Joe > about an inherent design decision (feature) of the Elecraft rigs. Not a good marketing strategy, IMHO. I hope Elecraft is not adopting it. That would be a shame. 73, Igor, N1YX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 transmit/amplifier relay
I reported this problem awhile ago. I've got no answer... I guess this is just the way it is... Igor, N1YX - Original Message - From: "Sy Botan" To: elecraft@mailman.qth.net Sent: Friday, March 11, 2011 3:40:36 PM Subject: Re: [Elecraft] K3 transmit/amplifier relay Most of my operating is on CW. While staying in the CW receive mode I operate the paddle to adjust speed and monitor level. The transmit relay activates and the amplifier relay also is activated. Being in the CW receive mode there is no RF output but the relay clanking is annoying. Neither VOX or QSK is selected. I tried to find some menu item that might have an affect on the relay activation. Did I overlook something or is this normal? Tnx de Sy K6PWP # 5223 (one week old) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] W6BK's #1 effort in working VP8ORK: 18 of 21 band/slots (Elecraft K3 both ways)
Eric, David is first only in CQ Zone 3 part of U.S. There are 8 stations with 20 count in CQ Zone 5 part of U.S. and 10 stations with 20 count in CQ Zone 4 part of U.S. I am sure many of these stations used K3 to work VP8ORK. 73, Igor, N1YX - Original Message - From: "Wayne Burdick" To: "Elecraft Reflector" Sent: Wednesday, February 9, 2011 1:04:08 PM Subject: [Elecraft] W6BK's #1 effort in working VP8ORK: 18 of 21 band/slots(Elecraft K3 both ways) We'd like to congratulate David Elliot, W6BK, who led all other U.S. stations in VP8ORK band/slot count, with 18. David used his K3, and the VP8ORK effort used seven K3s. (Some EU stations worked them on all 21 band/slots, but I don't have any information on these stations beyond that.) David emailed us about his effort: "The APF was particularly effectiveThe K3/P3 combination was superb. It really shines when things get 'down and dirty' as they often did on this DXpedition." Note: Band/slot count is a combination of bands and modes. If you're interested in seeing how other stations did, go to http://www.clublog.org/charts/?c=VP8ORK# and type in a callsign. If you click on on a red link in the line that says "Leaderboard," you'll see the top 100 stations in a particular zone or country. 73, Wayne, N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RES: Yamaha CM500
I use CM500 for few months now. I don't hear difference between Heil proset and CM500. Microphone is a bit different and TX EQ needed to be adjusted and mic gain reduced significantly. But the main CM500 advantage, aside from being 3 times cheaper than the Heil, they are much more comfortable, I can wear them for more than 10 hours straight during contest, while Heil would kill my ears after 3-4 hours. 73, Igor, N1YX - Original Message - From: "Robert Harmon" To: "Gary Gregory" Cc: elecraft@mailman.qth.net Sent: Tuesday, January 11, 2011 2:28:55 AM Subject: Re: [Elecraft] RES: Yamaha CM500 O.K. you guys, now you've done it. I have to try the C-500 phones too. :) Bob K6UJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: modifying your amp for lower drive requirement
"The Ameritron ALS-600 has about a 15 ohm input impedance. Then they put a series 35 ohm resistor for matching and reducing gain." This is exactly right. The MRF150 MOSFETs used in ALS600 are rated at 20dB. I know people who homebrewed similar amplifier without series resistor and have full 20dB of gain - no problem whatsoever, stable like a rock. Igor, N1YX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: audio speaker jack adapter
Sure, suite yourself. I happened to see soldering job done by some radio amateures, especially on a wires that are not really suitable for hand soldering (like cheap headphones). For most of them, adapte r is the way to go, just safer. If you plug it once and leave it be on back side of the rig, it will not be "potentially" intermittent. - Original Message - From: "Ralph Parker" To: Elecraft@mailman.qth.net Sent: Wednesday, October 27, 2010 12:54:52 PM Subject: [Elecraft] K3: audio speaker jack adapter >If you don't want to mess with soldering, Radioshack sells stereo-mono adapter I'd solder on a connector any day. I don't want the potential intermittent connection of a poorly made adapter. Maybe you don't either. Not to mention the mechanical stress on the jack from a bunch of weighty connectors. The fewer connections between A and B, the better. 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
Re: [Elecraft] K3 audio speaker jack
Incorrect. The adapter combines both channels into one. Nothing is shorted to ground. - Original Message - From: "Ken Kopp" To: "k igor" , elecraft@mailman.qth.net Sent: Wednesday, October 27, 2010 12:48:57 PM Subject: Re: [Elecraft] K3 audio speaker jack The RS adapter will merely move the point where the short occurs. The one channel of the stereo adapter will still be shorted by the mono plugs on the speaker/s. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
