Re: [Elecraft] K3 Assembly
Frank, it's not 'on the List' anymore, it's been implemented in F/W for quite a while now. You can read all about it if you search for quick memories in the pdf version of the K3 User Manual. You can find all details on page 16, about halfway down the left column (Memories 00-09 are quick memories). Works like a charm, especially with the four in band memories M1-M4 which you can use to store different frequencies modes within each band. Try it, I'm sure you'll like it. 73 es GL Glenn ON4WIX - Original Message - From: W6NEK w6...@socal.rr.com To: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Sunday, April 05, 2009 2:02 AM Subject: Re: [Elecraft] K3 Assembly That is an outstanding suggestion Joe! Simple and elegant. I hope it makes it to The List! Frank- W6NEK - Original Message - From: Joe Subich, W4TV li...@subich.com Sent: Saturday, April 04, 2009 4:27 PM Subject: Re: [Elecraft] K3 Assembly SNIP All that's necessary is to set MEM 0-9 to Band Sel in the configuration menu. After that, M-V followed by 1 through 0 will recall the last used frequency/mode on each band 160 - 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Band button suggestion
I've actually had the same thing happen here once or twice when attempting to record or play back some audio with my K3's DVR. I managed to change the contents of my M1-M4 freq/mode memories while fiddling with the DVR. Operator error of course. Some sort of software lock that can be turned on after programming your quick memories would be nice to prevent this from happening. Or maybe I should just engage my brain before hitting the keypad, hi. Enjoy your Sunday everyone! 73 Glenn ON4WIX - Original Message - From: Erik N Basilier ebasil...@cox.net To: d...@w3fpr.com; Elecraft@mailman.qth.net Sent: Sunday, April 05, 2009 6:43 AM Subject: Re: [Elecraft] K3 Band button suggestion Don, I used to have band stacking on my old Yaesu, and now on the K3 I have programmed the M buttons to select 3 frequencies in each band. You are correct w.r.t. the number of button presses: The K3 always needs two, while band stacking requires anything from one to three (if limited to a stack depth of 3), which makes two on the average. On the other hand, if one has only one favorite frequency in a band, band stacking requires only one key press to go there. The term stacking might be justified by observing that the last stored frequency within the band is the first on top of the stack, but on the other hand, when one accesses successive levels on the stack nothing pops off, but the stack contents just rotate. The advantage of band stacking IMHO is that you only need to use eye-hand coordination to reach one button, and you are guaranteed to end up on the desired band regardless of intentional or non-intentional programming. I have yet to reach the touch typing proficiency stage w.r.t. the K3 buttons, and have often re-programmed a memory button when my intention was to recall a band. At least once I have lost my M button programming when I upgraded firmware. That said, I think the BAND and MODE controls are quite convenient, and I use them as often as I use the M buttons. 73, Erik K7TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New
Hi all after a few hours yesterday (most of the day) help from my brother Jim M0CKE I now have a K3/100 up running. QTH here is 5 miles North of Wisbech in Cambs. I'll join in the net when I can but I'm busy some Sunday mornings. Thanks Andy (M0CHK) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 band buttons
FWIW I think Elecraft would achieve a lot more if they made a Keypad Interface with Programmable Keys to enable users to create their own unique way of operating. As I see it the radio simply does not have the number of available keys/knobs to be able make a lot of features easy to use. I just upgraded to the latest FW and lo and behold the Squelch operation appears to be a long press of the Config button followed by a twiddle of the VFO, if this is the way it works I am not impressed, the knob states SQL/RF so I did not expect to have to use a button as well. I find all these two button presses becoming tiresome and I worry that the K3 will become to demanding to use and end up being relegated to second place in the shack. I don't want a PC running my radio and if I did I would have bought a Flex for example. I hope Elecraft are thinking about these issues as I believe that as time goes by the K3 will become just another menu driven radio that is too difficult to use daily. Gary, S/N 679 Sent via BlackBerry® from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Hello everybody, During last CQ WPX contest I got the chance to put my K3 to work at our contest station PI4DX. We participated in the Multi One klass which allows us to use 2 radio's, one running station and one multiplier station. We used my K3 on the running station and a Icom IC-7700 on the multiplier station. This was actually the first time I could compare the K3 to a high end transceiver such as the IC-7700. I was surprised to find out that the 7700 sounded much better. The receiver was less noisy an easier to listen to. Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. The RX EQ is flat and I used the 2.7 filter on a 2.7 KHz bandwidth. Narrowing the bandwidth makes it worse but that is to be expected. No NB or NR was used. AFX on or off makes no difference. In addition to the 2.7 KHz filter my K3 also has the 2.1, 1.8 KHz and the 400 Hz filters. It doesn't have the 2nd receiver, the KXV3, KBPF3, or the KTCXO3. It does have the KDVR3, KAT3 and the KPA3. (will order a KXV3 module shortly) After reading all these glowing reports on the K3's smooth receiver I can only draw one conclusion; there must be something wrong with my K3. What could it be? 73, Maarten van Rossum PD2R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Maarten, I found just the opposite having compared my K3 with two separate 7700's with the K3 winning out each time. Also my wife being a non Ham picked the K3 audio over both of the 7700's each time. 73 de KE4WY Jim -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Maarten van Rossum Sent: Sunday, April 05, 2009 4:58 AM To: Elecraft Group Subject: [Elecraft] My K3's hissy and noisy audio Hello everybody, During last CQ WPX contest I got the chance to put my K3 to work at our contest station PI4DX. We participated in the Multi One klass which allows us to use 2 radio's, one running station and one multiplier station. We used my K3 on the running station and a Icom IC-7700 on the multiplier station. This was actually the first time I could compare the K3 to a high end transceiver such as the IC-7700. I was surprised to find out that the 7700 sounded much better. The receiver was less noisy an easier to listen to. Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. The RX EQ is flat and I used the 2.7 filter on a 2.7 KHz bandwidth. Narrowing the bandwidth makes it worse but that is to be expected. No NB or NR was used. AFX on or off makes no difference. In addition to the 2.7 KHz filter my K3 also has the 2.1, 1.8 KHz and the 400 Hz filters. It doesn't have the 2nd receiver, the KXV3, KBPF3, or the KTCXO3. It does have the KDVR3, KAT3 and the KPA3. (will order a KXV3 module shortly) After reading all these glowing reports on the K3's smooth receiver I can only draw one conclusion; there must be something wrong with my K3. What could it be? 73, Maarten van Rossum PD2R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 band buttons
Gary and all, I believe your idea has merit. I am a K3 Novice predominantly using an Orion 2. The remote Pod of the O2 is a God Send for contesting. What I really like about it is being able to access the CW SSB memories without the need for jabbing at small buttons on the rig during the heat of a contest. I turn my pod sideways so as to keep the tuning knob out of the way. For my purposes a simple pod without many buttons or tuning encoder is more useful. I do not need the remote tune or band change buttons which are on the TT remote pod they are confusion in a contest. I once heard of an operator who used the pod to tune from an easy chair. This I can identify with though the urge has never struck. Elecrafter would want to spend some time coming up with a pod which will best suit their wide user base. We are fortunate to have a manufacturer of strictly amateur radio equipment owned and run by hams! The service and attention is just amazing. 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of rfenab...@gmail.com Sent: 05 April 2009 08:04 To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 band buttons FWIW I think Elecraft would achieve a lot more if they made a Keypad Interface with Programmable Keys to enable users to create their own unique way of operating. As I see it the radio simply does not have the number of available keys/knobs to be able make a lot of features easy to use. I just upgraded to the latest FW and lo and behold the Squelch operation appears to be a long press of the Config button followed by a twiddle of the VFO, if this is the way it works I am not impressed, the knob states SQL/RF so I did not expect to have to use a button as well. I find all these two button presses becoming tiresome and I worry that the K3 will become to demanding to use and end up being relegated to second place in the shack. I don't want a PC running my radio and if I did I would have bought a Flex for example. I hope Elecraft are thinking about these issues as I believe that as time goes by the K3 will become just another menu driven radio that is too difficult to use daily. Gary, S/N 679 Sent via BlackBerryR from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Hi Maarten, I tend to agree with your observations. If you live in a noisy environment like I do, the K3 RX can be quite restless and listening fatigue comes in easy. I played with the AGC setting a while ago and came up with the following settings in the CONFIG menu: AGC SLP 008, AGC THR 006. This gives the RX a more analogue behaviour and it increases the distance between the background noise level and desired signal. I am still using F/W 2.76, so the new options in F/W 3.0x might be able to further improve the situation. -- Enno, PF5X K3 #1263 Hello everybody, During last CQ WPX contest I got the chance to put my K3 to work at our contest station PI4DX. We participated in the Multi One klass which allows us to use 2 radio's, one running station and one multiplier station. We used my K3 on the running station and a Icom IC-7700 on the multiplier station. This was actually the first time I could compare the K3 to a high end transceiver such as the IC-7700. I was surprised to find out that the 7700 sounded much better. The receiver was less noisy an easier to listen to. Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. The RX EQ is flat and I used the 2.7 filter on a 2.7 KHz bandwidth. Narrowing the bandwidth makes it worse but that is to be expected. No NB or NR was used. AFX on or off makes no difference. In addition to the 2.7 KHz filter my K3 also has the 2.1, 1.8 KHz and the 400 Hz filters. It doesn't have the 2nd receiver, the KXV3, KBPF3, or the KTCXO3. It does have the KDVR3, KAT3 and the KPA3. (will order a KXV3 module shortly) After reading all these glowing reports on the K3's smooth receiver I can only draw one conclusion; there must be something wrong with my K3. What could it be? 73, Maarten van Rossum PD2R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://n2.nabble.com/My-K3%27s-hissy-and-noisy-audio-tp2588008p2588162.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] [K3] For Sale: Higher Power Antenna Tuner for K3
If you use an amp with your K3, you will need a higher power ATU. I have an MFJ-993B 300 Watt Intelli-Tuner for sale. Unit is in like new condition with original manual. This is a great auto tuner, easy to use and probably one of the best units MFJ sells. Unit handles 2 antennas, has lots of memory for storing settings of previously worked frequencies, and has unique features like “sticky Tune”. Check detailed specs on MFJ web site. I am selling to buy a higher wattage tuner to interface with my amplifier. Price $200 plus shipping. Contact me off net at jgsch...@verizon.net Joe W1JGS #2120 - Joe W1JGS -- View this message in context: http://n2.nabble.com/For-Sale%3A-Higher-Power-Antenna-Tuner-for-K3-tp2588220p2588220.html Sent from the [K3] 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] Inductive Kick
Carl, I completely agree with you. I have seen 12 volt DC relays produce as much as 1000 volts peak or more when the current to the relay coil was terminated. This term was taught to me as Inductive Kick. When any coil of wire has DC current pass through it, a magnetic field is produced and magnetic flux builds up around the coil. This would be like stretching a spring. If you disconnect the current source, the magnetic field can quickly collapse causing the lines of magnetic flux to quickly cut accrossed the windings of the coil resulting in a high voltage spike. This would be equivalent to letting go of your stretched spring which can snap back at high speed resulting in possible damage. Placing a diode in parallel with the coil with the cathode toward the positive side of the current source has no effect when current is normally applied. When you interrupt the current. the magnetic field collapses causing the coil to become a current source. The diode carries the current and reduces the voltage because of it's low impedance when switched on. Remember the stretched spring. Having the diode in the circuit is like slowly releasing your spring instead of it snapping back. Hope this helps. 73 Dave KD1NA Don, seriously disagree about the magnitude of the kick. For years I taught a course on industrial installations and demo'ed the kick issue by soldering two bare wire to the coil of a small Potter and Brumfield ice cube 12 vdc relay. I would pick the biggest guy in the class to hold the wires while I touched them to a nine-volt transistor radio battery. And then watch as he would throw the relay across the room. A reverse diode would vastly reduce the effect. Well, I got yelled at and was told Hey, Stupid (and stupid wasn't the word they used)! Put that on a storage scope to see what you're messing with. The scope showed a spike of 450 vdc! The diode reduced it to less than 75 vdc. The magnitude is due mainly to the large inductance of the coil, but until some measurements are taken, some caution is advised. The inductance of any coil inside a K2 or K3 is bound to be much smaller. But the phenomenon is the same. 73, Carl WC0V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] UK Elecraft net report for Sunday 5th April
Many of the regular net stations were attending the Blackpool Rally, only myself, Brendan (EI6IZ), Richard (G4CGG) and Tim (G4ARI) were around today on 3627 KHz. Items of interest were the K6XX CW tuning indicator for the K2, the Amtor activity evenings recently included in the RSGB news (Tuesday evenings, 80m band) and microphone insert choices. 73 until next week Dave, G4AON K3/100, Acom 1000, dipole antenna __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs. Icom IC-7600
There's an interesting IC-7600 review on eHam where RFEXPERT is comparing his new IC-7600 with his K3. http://www.eham.net/reviews/detail/7775 73 Dave, G4AON K3/100 #80 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [K2] Aligning CW SSB filters...Crystal heaters running perfect
Mike, You may want to look at me website www.w3fpr.com K2 Dial Calibration article for some information. Part 3 of that article deals with filter alignment, both CW and SSB. The important factor is to align the -3dB point on the low frequency end of the passband at 300 Hz. The OP1 filter should have a nice flat passband, but the variable width filters will show a lot of passband ripple when set to wider than about 1500 Hz. Never-the-less, the wide settings are OK for listening the SSB at a bandwidth more narrow than the OP1 filter. NOTE WELL: The varactors used in K2s for the last one or two years will produce a much wider bandpass at settings greater than 1200 to 1500 Hz. than that indicated on the K2 display. Use Spectrogram to measure the actual width of the wide variable filters. With a 2.4 kHz OP1 filter at FL1, I recommend setting the actual width of FL2 to 2200 Hz, FL3 to 2000 Hz, and FL4 to 1800 Hz. If you set the low frequency passband corner at 300 Hz in LSB mode, you can then tap BAND+ and adjust the width to place the high frequency passband corner without much change in the low frequency end - but then tap BAND- and do a fine adjustment on the low frequency end before going on to the next filter. After setting the LSB filters that way, do the USB filters without changing the width You will likely find a displayed width of 1.90 will produce a filter close to 2200 Hz wide, 1.80 will be close to 2000 Hz and 1.60 will be close to 1800 Hz wide. 73, Don W3FPR Mike-WE0H wrote: OK I found Spectrogram 5.0 runs perfect in Wine within Linux. I aligned my CW filters per the N0SS document. All went real easy. Question though, how to align the SSB filters? What should the filter shapes look like? Is there an online document showing me what I should be tuning them for? I kind of guessed and tuned so the left skirt just went down to the low freq side of the display. I would prefer to see what they should look like when tuned properly...hi hi... BTW, I have three crystal heaters heating the PLL both BFO crystals to 40C. So far so good, the radio is dead nuts stable now. Many thanks, Mike WE0H K2 6698 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 software glitch with 3.04
I've been using this version with no problem until today. Had K-3 on 30 m, running 100 w. Second receiver on 40. Decided to switch bands, using the A/B button. 40m frequency was then on the A RX and i started to transmit. The output power was 100 w, not the usual setting I use on 40 which is much lower to drive the amp. I do have the PWR SET to Per-Band in the Config file. Could this be addressed in a future firmware update? Thanks. 73, Art KZ5D **A Good Credit Score is 700 or Above. See yours in just 2 easy steps! (http://pr.atwola.com/promoclk/100126575x1220572833x1201387477/aol?redir=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID %3D62%26bcd%3DAprilfooterNO62) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs. Icom IC-7600
It's too bad that RFEXPERT does not identify himself so that one could measure RFEXPERT's ability to make such an analysis. 73, Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave G4AON Sent: Sunday, April 05, 2009 8:20 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 vs. Icom IC-7600 There's an interesting IC-7600 review on eHam where RFEXPERT is comparing his new IC-7600 with his K3. http://www.eham.net/reviews/detail/7775 73 Dave, G4AON K3/100 #80 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Thanks everybody for your replies, I have played with the shift and Hi/Low cut and although it does help, it's not what is should be. The radio was not used in a noisy environment, it is usually fairly quiet here. I will however have a look into the AGC settings and see if that brings any help. I still think there is more to this but I cannot really put my finger on it. The difference between both radio's was pretty big. 73, Maarten __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] UK Elecraft net report for Sunday 5th April
I just ordered the components to build a KR5L CW Tuning Indicator for my K2. Waiting on the IC from overseas. Have to layout a board and etch it yet. Bought a neat orange super bright LED for the Lock button cap. That should look interesting in that color. Mike WE0H K2 6698 Dave G4AON wrote: Many of the regular net stations were attending the Blackpool Rally, only myself, Brendan (EI6IZ), Richard (G4CGG) and Tim (G4ARI) were around today on 3627 KHz. Items of interest were the K6XX CW tuning indicator for the K2, the Amtor activity evenings recently included in the RSGB news (Tuesday evenings, 80m band) and microphone insert choices. 73 until next week Dave, G4AON K3/100, Acom 1000, dipole antenna __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Explanation why Thailand bans hf transceivers with 6 m capability: military use of 6 m
Can you please provide us, esp. Elecraft, with more details about WHY the K3 has been banned? Maybe they can do something about fixing the reason for it being banned. And I'm sure our members would like to know as well. *** Hi All: An American professor, Charlie HS0.. tried to import the K3. This involves approval by a ministry. Elecraft disabled the K3's 6 m band by writing some code. Regrettably, no such solution is acceptable to the ministry. Brave OPs risk 5 years jail, but not me. HS has the world's toughest lese majeste laws. The Economist ran some articles which have been censored... Anyhow, this is just a sad reality. Elecraft have been incredibly supportive - no surprise, mni tnx, guys! 73, Chris KF6VCI / HS0ZFE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Mic setting and ALC question
Hello group, Working phone on 40m tonight, and noticed that I could only set mic gain to 3 before ALC maxed out on the K3's meter. Is this normal? I'm using the stock Elecraft hand mic. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Mic setting and ALC question
You might have MENU:MIC SEL set to rP.H or FP.H. You can use the '1' key on the keypad to drop this gain to .L if that is the problem. It just sounds like the mic input signal / gain is too hot. I have four mics here that are used with the K3 and typically need to run MIC GAIN at between 15 and 23 with each of them. 73, matt W6NIA On Sun, 05 Apr 2009 10:34:30 -0400, you wrote: Hello group, Working phone on 40m tonight, and noticed that I could only set mic gain to 3 before ALC maxed out on the K3's meter. Is this normal? I'm using the stock Elecraft hand mic. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Mic setting and ALC question
Maybe your SWR is really high? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Sarte Sent: Sunday, April 05, 2009 9:35 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: Mic setting and ALC question Hello group, Working phone on 40m tonight, and noticed that I could only set mic gain to 3 before ALC maxed out on the K3's meter. Is this normal? I'm using the stock Elecraft hand mic. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs. Icom IC-7600
Mark, Certainly everyone is entitled to his own opinion and I did note that he makes comments both pro and con on both radios - sort of. It is my biased personal opinion that such anonymous critiques are not worth reading nor worth taking any note of since the source is completely unknown and unverifiable. 73, Bob W5OV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Sent: Sunday, April 05, 2009 9:41 AM To: Elecraft Reflector Subject: Re: [Elecraft] K3 vs. Icom IC-7600 Not necessary. Everyone is allowed to make their biased analysis. If you read carefully you will notice he mentions good and bad points for both models. And his comment is either 'recognizeable' or not. I do not need his name, I read his comment a few times carefully and I can verify his positive and negative comments on the K3. In the end it is up to everyone themselves to decide wether the comment is valid in their situation or not. 73 Mark, PA5MW Robert Naumann wrote: It's too bad that RFEXPERT does not identify himself so that one could measure RFEXPERT's ability to make such an analysis. 73, Bob W5OV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs. Icom IC-7600
Everyone is allowed to make their biased analysis. However, it is not appropriate to shill for a manufacturer. Analysis should be balanced and based on accurate information. If you read carefully you will notice he mentions good and bad points for both models. Unfortunately, each of his complaints about the K3 have been resolved in current software - particularly the AGC mush and wandering power in SSB. Compared with the K3, the 7600 is overpriced and lacking. Dual Watch is a joke compared to the KRX3 and even with USB pasted over the CI-V interface, the protocol still fails even to allow access to BOTH VFOs without actually making the second VFO active! 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Sent: Sunday, April 05, 2009 10:41 AM To: Elecraft Reflector Subject: Re: [Elecraft] K3 vs. Icom IC-7600 Not necessary. Everyone is allowed to make their biased analysis. If you read carefully you will notice he mentions good and bad points for both models. And his comment is either 'recognizeable' or not. I do not need his name, I read his comment a few times carefully and I can verify his positive and negative comments on the K3. In the end it is up to everyone themselves to decide wether the comment is valid in their situation or not. 73 Mark, PA5MW Robert Naumann wrote: It's too bad that RFEXPERT does not identify himself so that one could measure RFEXPERT's ability to make such an analysis. 73, Bob W5OV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3
I have the Sub installed but when I try to change No to Yes in the VFO IND it says unavailable? I want to monitor 6 meters with the Sub. ?? Phil Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 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
Re: [Elecraft] K3 vs. Icom IC-7600
We beat this review to death two months ago. Check the archives. Joe Subich, W4TV wrote: Everyone is allowed to make their biased analysis. Compared with the K3, the 7600 is overpriced and lacking. Dual Watch is a joke compared to the KRX3 and even with USB pasted over the CI-V interface, the protocol still fails even to allow access to BOTH VFOs without actually making the second VFO active! 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 band buttons
Have you tried setting CONFIG:SQ MAIN to = SUB POT so that you can use the SUB part of the SQL/RF dual knob? It's described in the manual on page 58 under the CONFIG:SQ MAIN entry in the table. Bob NW8L On Sun, Apr 5, 2009 at 1:04 AM, rfenab...@gmail.com wrote: I just upgraded to the latest FW and lo and behold the Squelch operation appears to be a long press of the Config button followed by a twiddle of the VFO, if this is the way it works I am not impressed, the knob states SQL/RF so I did not expect to have to use a button as well. I find all these two button presses becoming tiresome and I worry that the K3 will become to demanding to use and end up being relegated to second place in the shack. I don't want a PC running my radio and if I did I would have bought a Flex for example. I hope Elecraft are thinking about these issues as I believe that as time goes by the K3 will become just another menu driven radio that is too difficult to use daily. Gary, S/N 679 Sent via BlackBerry® from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs. Icom IC-7600
No, that was his review of the IC-7700. The subject review of the IC-7600 was just posted yesterday. Bob NW8L On Sun, Apr 5, 2009 at 9:23 AM, SidShusterman k...@comcast.net wrote: We beat this review to death two months ago. Check the archives. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K2 CW tuning indicator: was UK Elecraft net report
Mike you might want to try something less visually distracting than a super bright LED, I find the 40 dB over 9 LED (the one already fitted in the K2 S-meter) used with the K6XX indicator annoying at times and it's not bright at all. I think the tuning indicator will eventually be removed, I missed the centre zero display on my K3 when I went back to using my K2 on CW, hence the reason for fitting it. It's also worth considering a series resistor with these detectors to limit the amount of noise triggered flickering on the lower bands. 73 Dave, G4AON K1, K2 and K3/100 I just ordered the components to build a KR5L CW Tuning Indicator for my K2. Waiting on the IC from overseas. Have to layout a board and etch it yet. Bought a neat orange super bright LED for the Lock button cap. That should look interesting in that color. Mike WE0H K2 6698 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
We used my K3 on the running station and a Icom IC-7700 on the multiplier station. This was actually the first time I could compare the K3 to a high end transceiver such as the IC-7700. I was surprised to find out that the 7700 sounded much better. Maarten, At my station, the K3, '7700, and '7800 are side-by-side. Of all three transceivers, the K3 produces the least amount of residual hiss. In fact. when the AF control is turned full CCW on the Icom's, a slight degree of hiss remains. Zero hiss with the K3. If you look at the audio structure of the K3's headphone circuit, it would be pretty difficult to improve upon when using a single-ended power supply. When bi-polar power supplies are used, it's possible to eliminate intra-stage coupling capacitors with servo-controlled op-amps, thereby eliminating DC offsets. Larger voltage swings are possible with bi-polar supplies and overall distortions are generally lower with these circuits. You tend to find these techniques used in Hi-Fi audio and broadcast equipment, but not in communications-grade audio systems. One important point is that the stock K3 has less low-end audio response than that of the two Icoms. But that's a personal choice. Some well-respected ops here detest the presence of low-end audio below ~ 200 Hz. Others (myself included), like to hear the entire passband while operating -- right down to 50 Hz or so. It's not right, it's not wrong - it's just a personal preference one way or the other. My personal choice is to open up the audio response, then limit low-end and high-end response through the K3's DSP filtering. I get the best of both worlds that way... In order to attain a richer low-end response on the K3, you may wish to review my mods on the N1EU website. After modification, the K3 is capable of sounding just as rich and smooth as the two Icoms. My guess is that when you use the adjective sharp, you're likely hearing a lack of low-end balance as both transceivers are capable of extremely sharp low-pass response. If you do invoke the mods, I would suggest first looking at the revision of your Main DSP Board as some of components I've changed may have now gone into production at Elecraft. It may also turn out that Elecraft eventually scales the audio R values rather than C values to accomplish the same end result. I changed C values since fewer components are changed that way. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3
Try the latest beta release on the web site. Its now enabled. :-) 73, Eric WA6HHQ === Phil LaMarche wrote: I have the Sub installed but when I try to change No to Yes in the VFO IND it says unavailable? I want to monitor 6 meters with the Sub. ?? Phil _..._ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Mic setting and ALC question
Hi Matt, Thanks for the reply. I adjusted the mic bias to low as you detailed, and now I can set mic gain to around 8-10 before ALC pegs. At 11, ALC reads full scale. I'm using the MH2 hand mic. Must be a pretty hot mic. 73, James K3JPS -Original Message- From: Matt Zilmer [mailto:mzil...@verizon.net] Sent: Sunday, April 05, 2009 10:44 AM To: James Sarte Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: Mic setting and ALC question You might have MENU:MIC SEL set to rP.H or FP.H. You can use the '1' key on the keypad to drop this gain to .L if that is the problem. It just sounds like the mic input signal / gain is too hot. I have four mics here that are used with the K3 and typically need to run MIC GAIN at between 15 and 23 with each of them. 73, matt W6NIA On Sun, 05 Apr 2009 10:34:30 -0400, you wrote: Hello group, Working phone on 40m tonight, and noticed that I could only set mic gain to 3 before ALC maxed out on the K3's meter. Is this normal? I'm using the stock Elecraft hand mic. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Mic setting and ALC question
Hello Robert, I was on 7.175 and SWR is reading 1.2 on both internal and external meters so I doubt that would be an issue. I did adjust mic gain bias to low, and can now move it up to anywhere between 8-10 before it ALC starts to max out. 73, James K3JPS -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Naumann Sent: Sunday, April 05, 2009 10:45 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: Mic setting and ALC question Maybe your SWR is really high? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Sarte Sent: Sunday, April 05, 2009 9:35 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: Mic setting and ALC question Hello group, Working phone on 40m tonight, and noticed that I could only set mic gain to 3 before ALC maxed out on the K3's meter. Is this normal? I'm using the stock Elecraft hand mic. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Maarten Wrote: Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. I think there is nothing wrong with your K3. About a week ago I reported the bad audio quality of the K3 but especially *in combination* with the (latest version of) Heil Proset headset. I guess that the wider freq-response of this headset is showing high spurious signals which are definitely direct related to the base band audio (100-3000 Hz) of the signal you are listening to. It's very tiring to listen to. I'm right now at the point of testing with an audio analyzing software tool and will report. The question now is, what can we do about it? 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington n...@carolina.rr.com - Original Message - From: Evert Bakker (PA2KW) ev...@pa2kw.com To: 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Sent: Sunday, April 05, 2009 1:39 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio Maarten Wrote: Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. I think there is nothing wrong with your K3. About a week ago I reported the bad audio quality of the K3 but especially *in combination* with the (latest version of) Heil Proset headset. I guess that the wider freq-response of this headset is showing high spurious signals which are definitely direct related to the base band audio (100-3000 Hz) of the signal you are listening to. It's very tiring to listen to. I'm right now at the point of testing with an audio analyzing software tool and will report. The question now is, what can we do about it? 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Explanation why Thailand bans hf transceivers with 6 m capability: military use of 6 m
On Sun, 05 Apr 2009 11:01:23 -0400, Jack Smith jack.sm...@cliftonlaboratories.com wrote: Total guess, but western military FM communications use the frequency bands 30-88 MHz, so any transceiver capable of operating on 6 meters could listen and transmit on a portion of the military FM band. Jack K8ZOA [snip] I guess Thailand is backward and doesn't have the technology to use spread spectrum and encryption on 6m (or any) band. With the rig mfr's targeting 6m as an additional band to catch the VHF crowd, it will soon be impossible to be a ham in that country unless you are using an older rig. Maybe that is their intent. Additional comment: I thought Thailand was in the Eastern Hemisphere ;o) Tom, N5GE K3 #806, K3 #1055 XV144, XV432 W1 and other small kits. http://www.n5ge.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My K3's hissy and noisy audio
Are we (dutch) all using the same version of Heil headset? I never noticed this high hiss with my old Telex headphones (with a smaller freq-response I guess) 73's, Evert PA2KW -Original Message- From: Steve Ellington [mailto:n...@carolina.rr.com] Sent: Sunday, April 05, 2009 19:48 To: ev...@pa2kw.com; 'Maarten van Rossum'; 'Elecraft Group' Cc: 'Gary Surrency' Subject: Re: [Elecraft] My K3's hissy and noisy audio Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington n...@carolina.rr.com - Original Message - From: Evert Bakker (PA2KW) ev...@pa2kw.com To: 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Sent: Sunday, April 05, 2009 1:39 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio Maarten Wrote: Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. I think there is nothing wrong with your K3. About a week ago I reported the bad audio quality of the K3 but especially *in combination* with the (latest version of) Heil Proset headset. I guess that the wider freq-response of this headset is showing high spurious signals which are definitely direct related to the base band audio (100-3000 Hz) of the signal you are listening to. It's very tiring to listen to. I'm right now at the point of testing with an audio analyzing software tool and will report. The question now is, what can we do about it? 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Explanation why Thailand bans hf transceivers with 6 m capability: military use of 6 m
Can you please provide us, esp. Elecraft, with more details about WHY the K3 has been banned? Maybe they can do something about fixing the reason for it being banned. And I'm sure our members would like to know as well. *** Hi All: An American professor, Charlie HS0.. tried to import the K3. This involves approval by a ministry. Elecraft disabled the K3's 6 m band by writing some code. Regrettably, no such solution is acceptable to the ministry. Brave OPs risk 5 years jail, but not me. RAST should be able to answer this? I suspect an easily overcome software fix isn't sufficient to satisfy the authorities. The Professor could install the latest firmware and be on 6m in minutes if he decided to risk it. 73 - Ken __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
--- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: From: Steve Ellington n...@carolina.rr.com Subject: Re: [Elecraft] My K3's hissy and noisy audio To: ev...@pa2kw.com, 'Maarten van Rossum' pd2r.maar...@gmail.com, 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Date: Sunday, April 5, 2009, 11:47 AM Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Explanation why Thailand bans hf transceivers with 6 m capability: military use of 6 m
By western I mean NATO or US standards, compared with standards developed by the former USSR and Warsaw Pact, commonly called east bloc. The geographical location of Thailand is not material in this context. Jack Radio Amateur N5GE wrote: On Sun, 05 Apr 2009 11:01:23 -0400, Jack Smith jack.sm...@cliftonlaboratories.com wrote: Total guess, but western military FM communications use the frequency bands 30-88 MHz, so any transceiver capable of operating on 6 meters could listen and transmit on a portion of the military FM band. Jack K8ZOA [snip] I guess Thailand is backward and doesn't have the technology to use spread spectrum and encryption on 6m (or any) band. With the rig mfr's targeting 6m as an additional band to catch the VHF crowd, it will soon be impossible to be a ham in that country unless you are using an older rig. Maybe that is their intent. Additional comment: I thought Thailand was in the Eastern Hemisphere ;o) Tom, N5GE K3 #806, K3 #1055 XV144, XV432 W1 and other small kits. http://www.n5ge.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] My K3's hissy and noisy audio
The exception proves the rule. Steve Ellington n...@carolina.rr.com - Original Message - From: Wes Stewart n...@yahoo.com To: ev...@pa2kw.com; 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net; Steve Ellington n...@carolina.rr.com Sent: Sunday, April 05, 2009 2:16 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio --- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: From: Steve Ellington n...@carolina.rr.com Subject: Re: [Elecraft] My K3's hissy and noisy audio To: ev...@pa2kw.com, 'Maarten van Rossum' pd2r.maar...@gmail.com, 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Date: Sunday, April 5, 2009, 11:47 AM Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] For Sale
Mint Elecraft HexKey; write for pix if interested but looks identical to what's posted on the Elecraft site. Magnetic mechanism based on the Mercury paddle. Complete with hex wrench. $160. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Inductive Kicks
Hi All Interested to read the mailings on this topic. I've not seen any reference to an effect which used sometimes to catch us out years back when using diodes to de-click audio installations. Shunting the coil with a diode (at least with the rather big telephone-type relays of the period) significantly delayed the release time. Maybe that's not so noticeable with more modern, miniature relays storing less energy? 73 de Alan G4LWA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Inductive Kicks
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Inductive Kicks
One point that I stumbled over is that adding a simple snubbing diode across a relay coil increases the relay hold time. The current flow through the diode when the supply voltage is removed goes through the relay coil, countering the spring force that is returning the relay to the normal state. In a hot switching application, you may need the full spring force to pull the contacts apart quickly, or tack welds are created. If hold time or relay contact life reduction due to slow drop out while switching current are a factor, a slightly more complex snubber consisting of a zener diode in series with the diode might be appropriate. The zener voltage value is derived from the protection needs of the switching device. See http://relays.tycoelectronics.com/appnotes/app_pdfs/13c3264.pdf and http://relays.tycoelectronics.com/appnotes/app_pdfs/13c3311.pdf for the details. Dick, K6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Secure shopping !v
Hello!How are you recently? I would like to introduce a good company who trades mainly in electornic products.Now the company is under sales promotion,all the products are sold nearly at its cost.They provide the best service to customers,they provide you with original products of good quality,and what is more,the price is a surprising happiness to you!It is realy a good chance for shopping.just grasp the opportunity,Now or never!The web address:www.niyacn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My K3's hissy and noisy audio
I felt the same thing when I first started using my K3. As I started learning how to adjust the IF filter controls I found that as the bandwidth became more optimum I was also able to cut out the super highs and lows. The K3 can give you a really wide audio frequency spectrum if you want to hear it. But I have found that for SSB a low cut of 350 to 450 Hz coupled with a high cut of around 1.75 KHz provides a very good audio range that does not fatigue my ears. For contesting I narrow it down even more and still have very copiable reception. For CW I vary the width to give similar results, but much more narrow bandwidth. Hearing high or very low pitched sounds can tire your ears quickly. My K3 does a great job of eliminating those while still allowing me to hear what I need. While I am used to closing down the bandwidth to limit what I hear, the other two hams in my family are not. Both KB4TGE and KG6YMN have had no problems at all with the narrow bandwidths. Both are definitely not in the contester category (yet)... As others have noted on the list, it seems to be best to adjust the high and low cuts for SSB, while adjusting the IF bandwidth for CW. The latter varies the IF frequency, while the high/low cut does not. And, for the record, my K3 has the stock 2.7 KHz 5-pole filter along with a 500 Hz 5-pole filter. I use a Heil Proset headset with HC-4 mic element. I don't yet feel the need for other filters, although I am sure that will change as the gift-giving season (Christmas, birthday, etc) approaches and the above-mentioned hams start asking what I might like... ;-) The environment of Silicon Valley is very RF-intensive. As one would expect of a high-technology area, there are a lot of hams, and contesters, in close proximity. I have found that the best setup for my K3 in a contest is to run with attenuation ON, preamp OFF, and as narrow bandwidth as possible. With this combination, I am actually getting back to not having headaches at the end of a long contest. The K3 has definitely improved my contest enjoyment. I think the message here is to experiment with the radio to get what you want and need from it. It shouldn't be giving you headaches or extraneous noise unless you really want it to. Once you learn the magic combination for your operation you should have very enjoyable operation. -Jack Brindle, W6FB === On Apr 5, 2009, at 10:39 AM, Evert Bakker (PA2KW) wrote: Maarten Wrote: Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. I think there is nothing wrong with your K3. About a week ago I reported the bad audio quality of the K3 but especially *in combination* with the (latest version of) Heil Proset headset. I guess that the wider freq-response of this headset is showing high spurious signals which are definitely direct related to the base band audio (100-3000 Hz) of the signal you are listening to. It's very tiring to listen to. I'm right now at the point of testing with an audio analyzing software tool and will report. The question now is, what can we do about it? 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Meaning: The exception proves the Rule. If there is an exception to the rule, then there must be then be a rule. Since 3 Dutch hear hissing K3s, we have a rule however you being an exception proves that there must be a rule. Another explanation could be that perhaps you have some Dutch in the family tree. Stewart may not be a proper Dutch name however Martha Stewart does market the Martha Stewart Dutch Oven. One reviewer of this oven mentioned the steam vent hissing like a cornered cat. So maybe this is the link we've been looking for thus absolutely proving the rule that the Dutch hear hissing sounds in their K3s. Steve Ellington Steve Ellington n...@carolina.rr.com - Original Message - From: Wes Stewart n...@yahoo.com To: ev...@pa2kw.com; 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net; Steve Ellington n...@carolina.rr.com Sent: Sunday, April 05, 2009 2:56 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio --- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: The exception proves the rule. And what's that supposed to mean? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
It's commonly misunderstood saying. It uses an almost-obsolete meaning of the verb prove which means test. (As in proving grounds.) The exception tests the rule. 73, Carl WS7L --- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: The exception proves the rule. And what's that supposed to mean? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Hi all, In my view the only problem with the K3 being hissy is the AGC threshold. On 20m and below even with AGC threshold set to the maximum (008), just the atmospheric noise is at or above the threshold and this is indeed tiring to listen to. I solve the problem by turning down the RF gain; I notice many others instead turn the AGC slope way up (actually low number), which has a similar effect for strong signals. Very high on my wish list is for at least another 5dB increase in the AGC threshold. The present range 002-008 is just not enough. Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - AB2TC - Knut -- View this message in context: http://n2.nabble.com/My-K3%27s-hissy-and-noisy-audio-tp2588008p2590003.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
Re: [Elecraft] My K3's hissy and noisy audio
Perhaps the band noise is more obvious in the K3 because the low frequency audio is restricted causing the noise to be distributed over a more narrow range. This lack of bass tends to induce for ear fatigue. Steve Ellington n...@carolina.rr.com - Original Message - From: ab2tc ab...@arrl.net To: elecraft@mailman.qth.net Sent: Sunday, April 05, 2009 4:42 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio Hi all, In my view the only problem with the K3 being hissy is the AGC threshold. On 20m and below even with AGC threshold set to the maximum (008), just the atmospheric noise is at or above the threshold and this is indeed tiring to listen to. I solve the problem by turning down the RF gain; I notice many others instead turn the AGC slope way up (actually low number), which has a similar effect for strong signals. Very high on my wish list is for at least another 5dB increase in the AGC threshold. The present range 002-008 is just not enough. Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - AB2TC - Knut -- View this message in context: http://n2.nabble.com/My-K3%27s-hissy-and-noisy-audio-tp2588008p2590003.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] My K3's hissy and noisy audio
Hello Jack, Thanks for all info. I played around a while with the IF_BW controls. The problem is that the level and sound of the high hiss, isn't depending on the IF BW. I just tried 50 Hz BW on CW and listening to a stronger signal. I still hear the same hiss with the same strength and sound. I also tried RX-EQ settings. It seems that there is no way, with the exception of the volume, that I can influence the hiss. I did blame the bad audio of the K3. That conclusion is to fast and it might well be something else (bad headset or even a bad operator). We'll have to wait and see if someone can help me (us) out. 73's, Evert PA2KW -Original Message- From: Jack Brindle [mailto:jackbrin...@earthlink.net] Sent: Sunday, April 05, 2009 21:55 To: ev...@pa2kw.com Cc: 'Maarten van Rossum'; 'Elecraft Group'; 'Gary Surrency' Subject: Re: [Elecraft] My K3's hissy and noisy audio I felt the same thing when I first started using my K3. As I started learning how to adjust the IF filter controls I found that as the bandwidth became more optimum I was also able to cut out the super highs and lows. The K3 can give you a really wide audio frequency spectrum if you want to hear it. But I have found that for SSB a low cut of 350 to 450 Hz coupled with a high cut of around 1.75 KHz provides a very good audio range that does not fatigue my ears. For contesting I narrow it down even more and still have very copiable reception. For CW I vary the width to give similar results, but much more narrow bandwidth. Hearing high or very low pitched sounds can tire your ears quickly. My K3 does a great job of eliminating those while still allowing me to hear what I need. While I am used to closing down the bandwidth to limit what I hear, the other two hams in my family are not. Both KB4TGE and KG6YMN have had no problems at all with the narrow bandwidths. Both are definitely not in the contester category (yet)... As others have noted on the list, it seems to be best to adjust the high and low cuts for SSB, while adjusting the IF bandwidth for CW. The latter varies the IF frequency, while the high/low cut does not. And, for the record, my K3 has the stock 2.7 KHz 5-pole filter along with a 500 Hz 5-pole filter. I use a Heil Proset headset with HC-4 mic element. I don't yet feel the need for other filters, although I am sure that will change as the gift-giving season (Christmas, birthday, etc) approaches and the above-mentioned hams start asking what I might like... ;-) The environment of Silicon Valley is very RF-intensive. As one would expect of a high-technology area, there are a lot of hams, and contesters, in close proximity. I have found that the best setup for my K3 in a contest is to run with attenuation ON, preamp OFF, and as narrow bandwidth as possible. With this combination, I am actually getting back to not having headaches at the end of a long contest. The K3 has definitely improved my contest enjoyment. I think the message here is to experiment with the radio to get what you want and need from it. It shouldn't be giving you headaches or extraneous noise unless you really want it to. Once you learn the magic combination for your operation you should have very enjoyable operation. -Jack Brindle, W6FB === On Apr 5, 2009, at 10:39 AM, Evert Bakker (PA2KW) wrote: Maarten Wrote: Several other operators also stated the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set Plus. I think there is nothing wrong with your K3. About a week ago I reported the bad audio quality of the K3 but especially *in combination* with the (latest version of) Heil Proset headset. I guess that the wider freq-response of this headset is showing high spurious signals which are definitely direct related to the base band audio (100-3000 Hz) of the signal you are listening to. It's very tiring to listen to. I'm right now at the point of testing with an audio analyzing software tool and will report. The question now is, what can we do about it? 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
Re: [Elecraft] K3: Mic setting and ALC question
James, Do you have an RF in the shack problem there? Just a guess, but one possible explanation. It sounds to me like the mic input of the K3 is tolerating low level RF, but as the amount of RF increases, the RF feedback overloads the mic input. Have you changed anything in your antenna field or in the shack that could relate to the antenna feeds? If so, look there first. 73, Don W3FPR James Sarte wrote: Hello Robert, I was on 7.175 and SWR is reading 1.2 on both internal and external meters so I doubt that would be an issue. I did adjust mic gain bias to low, and can now move it up to anywhere between 8-10 before it ALC starts to max out. 73, James K3JPS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Inductive Kick
The usual diode across the coil is simple and effective for the vast majority of situations but the rate of change of current can induce undesirable effects in nearby sensitive circuits which the diode exacerbates. For most relays we see in ham rigs a 1N400x series diode is often used, when a 1N4148 is not big enough to dissipate the energy pulse of bigger relays. I have wondered if the slow 1N4000 types can turn on fast enough to catch those first few ns, but I have not looked into this. I have used a capacitor between base and collector of the driver to slow down the rate of change and thus eliminate both the overshoot problem and coupling energy into nearby sensitive circuits. Some speed-up circuits which apply a series resistor also help with this potential problem. David G3UNA - Original Message - From: David Robertson dar...@comcast.net To: w3...@embarqmail.com Cc: Elecraft elecraft@mailman.qth.net Sent: Sunday, April 05, 2009 1:11 PM Subject: [Elecraft] Inductive Kick Carl, I completely agree with you. I have seen 12 volt DC relays produce as much as 1000 volts peak or more when the current to the relay coil was terminated. This term was taught to me as Inductive Kick. When any coil of wire has DC current pass through it, a magnetic field is produced and magnetic flux builds up around the coil. This would be like stretching a spring. If you disconnect the current source, the magnetic field can quickly collapse causing the lines of magnetic flux to quickly cut accrossed the windings of the coil resulting in a high voltage spike. This would be equivalent to letting go of your stretched spring which can snap back at high speed resulting in possible damage. Placing a diode in parallel with the coil with the cathode toward the positive side of the current source has no effect when current is normally applied. When you interrupt the current. the magnetic field collapses causing the coil to become a current source. The diode carries the current and reduces the voltage because of it's low impedance when switched on. Remember the stretched spring. Having the diode in the circuit is like slowly releasing your spring instead of it snapping back. Hope this helps. 73 Dave KD1NA Don, seriously disagree about the magnitude of the kick. For years I taught a course on industrial installations and demo'ed the kick issue by soldering two bare wire to the coil of a small Potter and Brumfield ice cube 12 vdc relay. I would pick the biggest guy in the class to hold the wires while I touched them to a nine-volt transistor radio battery. And then watch as he would throw the relay across the room. A reverse diode would vastly reduce the effect. Well, I got yelled at and was told Hey, Stupid (and stupid wasn't the word they used)! Put that on a storage scope to see what you're messing with. The scope showed a spike of 450 vdc! The diode reduced it to less than 75 vdc. The magnitude is due mainly to the large inductance of the coil, but until some measurements are taken, some caution is advised. The inductance of any coil inside a K2 or K3 is bound to be much smaller. But the phenomenon is the same. 73, Carl WC0V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 audio
...the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set I think so too. The high hiss level is the thing I like least about my K3 :-( VE7XF (retired after 45 years of sound recording) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
If I may throw my two pennies into the discussion - I use medium quality amplified speakers on my K3, and with the speaker amplifier turned up and the K3 connected to a dummy load, I hear no evidence of any hissy receiver noise - very quiet. My conclusion from that is the hissy sound is not from the K3 internal noise. BTW, the internal speaker is difficult for me to listen to, but that is the fault of the speaker and not the K3 audio. When I connect an antenna, I hear sounds that are directly related to the DSP bandwidth I have dialed in (only the 2.7 kHz filter in this K3), and also related to the AGC parameters that I have selected.. Sometimes the band noise is objectionable, but what I am saying is that is band noise and not K3 noise. There was a change to the AGC in firmware MCU release 3.03 that in crowded band conditions could be interpreted as hiss or muddiness, and I would encourage those who are hearing hissy audio to try an upgrade to the latest beta level firmware. 73, Don W3FPR Ralph Parker wrote: ...the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set I think so too. The high hiss level is the thing I like least about my K3 :-( VE7XF (retired after 45 years of sound recording) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
I will also confirm the audio leaves a lot to be desired. More than just a couple exceptions, perhaps some of us did not drink the Kool Aide. The exception proves the rule. Steve Ellington n...@carolina.rr.com - Original Message - From: Wes Stewart n...@yahoo.com To: ev...@pa2kw.com; 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net; Steve Ellington n...@carolina.rr.com Sent: Sunday, April 05, 2009 2:16 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio --- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: From: Steve Ellington n...@carolina.rr.com Subject: Re: [Elecraft] My K3's hissy and noisy audio To: ev...@pa2kw.com, 'Maarten van Rossum' pd2r.maar...@gmail.com, 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Date: Sunday, April 5, 2009, 11:47 AM Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
I guess I would have to listen to another K3, but the audio is no better than my TS480 with internal speaker. If I may throw my two pennies into the discussion - I use medium quality amplified speakers on my K3, and with the speaker amplifier turned up and the K3 connected to a dummy load, I hear no evidence of any hissy receiver noise - very quiet. My conclusion from that is the hissy sound is not from the K3 internal noise. BTW, the internal speaker is difficult for me to listen to, but that is the fault of the speaker and not the K3 audio. When I connect an antenna, I hear sounds that are directly related to the DSP bandwidth I have dialed in (only the 2.7 kHz filter in this K3), and also related to the AGC parameters that I have selected.. Sometimes the band noise is objectionable, but what I am saying is that is band noise and not K3 noise. There was a change to the AGC in firmware MCU release 3.03 that in crowded band conditions could be interpreted as hiss or muddiness, and I would encourage those who are hearing hissy audio to try an upgrade to the latest beta level firmware. 73, Don W3FPR Ralph Parker wrote: ...the K3's audio was hissy and sharp and not nice and smooth. We could hear it using the built-in speaker as well as on a Heil Pro Set I think so too. The high hiss level is the thing I like least about my K3 :-( VE7XF (retired after 45 years of sound recording) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://n2.nabble.com/K3-audio-tp2590280p2590354.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
Re: [Elecraft] KX-1 has been born, TWICE
Bob and all, Bob is correct, the free green lead of L2 must not make contact with the L2 lead 4 (red) solder pad or wire. The manual tells the builder to strip the green wire leaving 1/8 inch (3mm) of insulation beyond the point where the wire leaves the core. First step, do that, it may be adequate with no further work, but read on. After L2 is mounted on the board, next step is to form the green wire so it passes behind the LPF board at a location above the solder pad for L2 lead #4. Then, take a look at it, and if you find that the green wire lead has any chance of contacting the L2 lead 4 solder pad at the back of the board once it is mounted, use a 3/16 inch (4.5mm) piece of insulated tubing (cut from the same wire you used to insulate the + lead of the electrolytic capacitor) on this green lead. Yes, the thickness of the insulation will move the LPF board a bit away from KX1 board J7. but push the board as tightly against J7 as possible and all should be fine. As another hint, the Low Pass Filter board should be positioned so the outer edges of L1 and L2 are aligned right at the edge of the KX1 board - you can 'eyeball' this condition, but do it before soldering the leads of the LPF board to the KX1 board. Test fit the KXAT1 before putting the KX1 board in the enclosure. If there is interference, you can usually move the KXAT1 T1 core over a bit to make room for the KXB3080 LPF board - the clearances are tight, but they do work out. Above all, work carefully building this KXB3080 LPF board, and be doubly certain that the toroid leads are well stripped - flush trim the relay leads so they do not injure the enamel on the toroids. Problems with this board is the most frequent cause of failure with the KXB3080 installation - again work carefully, strip the toroid leads well, and do not use excess solder, and success can come to you too. 73, Don W3FPR B.G. wrote: My only nit-pick refers to the (routing) of the green toroid wire L2-1 from the LPF1 module to the KX-1 BOARD. The errata sheet gives the 100% correct procedure, but practicality told me it won't work. After a quick call to Scott a call from Don W., a procedure was suggested which I recommend for all builders. Maybe Don can post on the reflector. It involves using a 3/16 piece of the Green insulation. WORKS PERFECTLY. Thanks guys. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
Thank you all for the great replies, most were very helpful. I'll keep you posted once I have experimented some more. 73, Maarten 2009/4/6 Merv Schweigert k...@flex.com I will also confirm the audio leaves a lot to be desired. More than just a couple exceptions, perhaps some of us did not drink the Kool Aide. The exception proves the rule. Steve Ellington n...@carolina.rr.com - Original Message - From: Wes Stewart n...@yahoo.com To: ev...@pa2kw.com; 'Maarten van Rossum' pd2r.maar...@gmail.com; 'Elecraft Group' elecraft@mailman.qth.net; Steve Ellington n...@carolina.rr.com Sent: Sunday, April 05, 2009 2:16 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio --- On Sun, 4/5/09, Steve Ellington n...@carolina.rr.com wrote: From: Steve Ellington n...@carolina.rr.com Subject: Re: [Elecraft] My K3's hissy and noisy audio To: ev...@pa2kw.com, 'Maarten van Rossum' pd2r.maar...@gmail.com, 'Elecraft Group' elecraft@mailman.qth.net Cc: 'Gary Surrency' supp...@elecraft.com Date: Sunday, April 5, 2009, 11:47 AM Those that have complained about hissy and noisy audio all have one thing in commonAll 3 are in the Netherlands. Could there be some common thread among residences in this region that enables one to detect these K3 abnormalities? Steve Ellington Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Secure shopping !v [REMOVED]
Looks like someone's pc got infected and the virus sent spam to everyone in their address book. First time that has happened here in a long time! I've removed and blocked the offending email address from the list. 73, Eric WA6HHQ Elecraft List Moderator Robert Sands wrote: Hello!How are you recently? _..._ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
Hi Don, It is definitely not band-noise what I'm talking about. You need a decent signal level (audio strength) to hear it. For me, I'm quite sure it has to do with the digitalization. That sound is far from natural and is ADDITIONAL to the normal audio signal. That addition sounds sharp, metallic, like these extreme low cost jingle bell sounds in all kind of gifts (sorry for the comparison between these two). But it is next to the normal signal and many db's down. That's why I called it the silver line around the cloud in the beginning. The normal signal sounds OK, not as comfortable like my TR7 audio but very good for normal use as we do (at least for me). I just would like to get rid of this higher freq component which doesn't like to be influenced by whatever control except the power and volume button :-) . I've got 2 K3's and they both give me the same result. I played with all kind of controls (RX-EQ, AGC-SLP/THR, AGC-S/F, AGC ON/OFF) and there is no difference whatsoever! I apologize for being persistent in this. 73's, Evert PA2KW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Monday, April 06, 2009 00:21 To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 audio I hear no evidence of any hissy receiver noise - very quiet. My conclusion from that is the hissy sound is not from the K3 internal noise. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] UK Elecraft net report for Sunday 5th April
Mike, I understand that you have already ordered the parts, but a more compact CW tuning indicator is the K6XX indicator (similar circuit). The board was designed by Tom Hammond and a kit of parts is available - see http://www.n3epa.org/Pages/K6XX/K6XXCWIndicatorKit.htm for the kit. If you wish to avoid drilling holes in the K2, small LEDs can be mounted in the K2 Keycaps. See http://www.qslnet.de/member/la3za/K2_LEDS.html for more information. The tiny HP LEDs do require different series resistor values, so look at Sverre's schematics for that information. 73, Don W3FPR Mike-WE0H wrote: I just ordered the components to build a KR5L CW Tuning Indicator for my K2. Waiting on the IC from overseas. Have to layout a board and etch it yet. Bought a neat orange super bright LED for the Lock button cap. That should look interesting in that color. Mike WE0H K2 6698 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
There is a 3.9 KHz digitization artifact about 78 dB down from normal audio level. Is this what you hear? It's quite visible in a spectrum analyzer view of the K3's audio output. http://www.cliftonlaboratories.com/elecraft_k3_receive_audio.htm - about half way down the page under Headphone Port SSB Mode with 500 Hz Tone - Harmonics Jack K8ZOA Evert Bakker (PA2KW) wrote: Hi Don, It is definitely not band-noise what I'm talking about. You need a decent signal level (audio strength) to hear it. For me, I'm quite sure it has to do with the digitalization. That sound is far from natural and is ADDITIONAL to the normal audio signal. That addition sounds sharp, metallic, like these extreme low cost jingle bell sounds in all kind of gifts (sorry for the comparison between these two). But it is next to the normal signal and many db's down. That's why I called it the silver line around the cloud in the beginning. The normal signal sounds OK, not as comfortable like my TR7 audio but very good for normal use as we do (at least for me). I just would like to get rid of this higher freq component which doesn't like to be influenced by whatever control except the power and volume button :-) . I've got 2 K3's and they both give me the same result. I played with all kind of controls (RX-EQ, AGC-SLP/THR, AGC-S/F, AGC ON/OFF) and there is no difference whatsoever! I apologize for being persistent in this. 73's, Evert PA2KW -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Monday, April 06, 2009 00:21 To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 audio I hear no evidence of any hissy receiver noise - very quiet. My conclusion from that is the hissy sound is not from the K3 internal noise. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
Evert. I have no intention to dispute your observations. It is just that mine are different. You are justified in being persistent to find out if there is a problem with some K3s or if it is a localized problem, or exactly what, but as far as I can tell, it is not apparent on my K3. In my observations, I have concluded that the AGC has a lot to do with how the K3 sounds. I particularly liked the way the K2 AGC response sounded, so I have used Jack Smith's charts at http://www.cliftonlaboratories.com/elecraft_k3_agc_and_s-meter.htm to modify my AGC parameters to have a response more like the K2 (strong signals sound stronger, weaker signals weaker). Those settings made a great difference to me, and made the audio much smoother. Secondly, the AGC improvements with MCU 3.03 (and higher) made an additional difference. Is it possible that the AGC settings make a difference in the perception of hissing audio that we have been discussing? I don't know the answer, but provide it as food for thought. 73, Don W3FPR Evert Bakker (PA2KW) wrote: Hi Don, It is definitely not band-noise what I'm talking about. You need a decent signal level (audio strength) to hear it. For me, I'm quite sure it has to do with the digitalization. That sound is far from natural and is ADDITIONAL to the normal audio signal. That addition sounds sharp, metallic, like these extreme low cost jingle bell sounds in all kind of gifts (sorry for the comparison between these two). But it is next to the normal signal and many db's down. That's why I called it the silver line around the cloud in the beginning. The normal signal sounds OK, not as comfortable like my TR7 audio but very good for normal use as we do (at least for me). I just would like to get rid of this higher freq component which doesn't like to be influenced by whatever control except the power and volume button :-) . I've got 2 K3's and they both give me the same result. I played with all kind of controls (RX-EQ, AGC-SLP/THR, AGC-S/F, AGC ON/OFF) and there is no difference whatsoever! I apologize for being persistent in this. 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My K3's hissy and noisy audio
I have very sensitive in-ear monitors. The K3 (and the Orion, and possibly other radios) has significant hiss. I inserted an attenuator and knocked the hiss down below my ability to detect it. There is plenty of audio range remaining. You may find 10 to 20 dB will help. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KX-1 has been born, TWICE
BG wrote: My only nit-pick refers to the (routing) of the green toroid wire L2-1 from the LPF1 module to the KX-1 BOARD. The errata sheet gives the 100% correct procedure, but practicality told me it won't work. For the record, all the Elecraft assembly procedures are developed actually doing the assembly with the eyes of a relative novice, then documenting what works. The photos are actual photos of the unit being built. Once the assembly procedure is developed, a number of field testers build kits using the same procedure, reviewing and critiquing the illustrations and the wording of each step. Only after their inputs are evaluated and the manual revised does it get printed for shipment with the kits to customers. Then feedback from customers are constantly evaluated and change made accordingly, but from the very first unit shipped, the assembly procedure has been documented by actually doing it step-by-step as shown and tested to be sure it works. Experienced builders will sometimes take shortcuts or have their 'own way' of doing things. That's FB, but someone just following the manual as written will end up with a properly working rig meeting all Elecraft standards. Ron AC7AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
As I recall some of the sharpness in the audio can be attributed to the impedance of the headphones used. Low impedance transducers (particularly 8 and 16 Ohms) require the headset amplifier to run harder which brings up not only the broadband noise but results in higher levels of distortion. Use of high sensitivity, high impedance transducers with AF Gain = L should result in considerably lower levels of high frequency noise. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Sunday, April 05, 2009 7:29 PM To: ev...@pa2kw.com Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 audio Evert. I have no intention to dispute your observations. It is just that mine are different. You are justified in being persistent to find out if there is a problem with some K3s or if it is a localized problem, or exactly what, but as far as I can tell, it is not apparent on my K3. In my observations, I have concluded that the AGC has a lot to do with how the K3 sounds. I particularly liked the way the K2 AGC response sounded, so I have used Jack Smith's charts at http://www.cliftonlaboratories.com/elecraft_k3_agc_and_s-meter.htm to modify my AGC parameters to have a response more like the K2 (strong signals sound stronger, weaker signals weaker). Those settings made a great difference to me, and made the audio much smoother. Secondly, the AGC improvements with MCU 3.03 (and higher) made an additional difference. Is it possible that the AGC settings make a difference in the perception of hissing audio that we have been discussing? I don't know the answer, but provide it as food for thought. 73, Don W3FPR Evert Bakker (PA2KW) wrote: Hi Don, It is definitely not band-noise what I'm talking about. You need a decent signal level (audio strength) to hear it. For me, I'm quite sure it has to do with the digitalization. That sound is far from natural and is ADDITIONAL to the normal audio signal. That addition sounds sharp, metallic, like these extreme low cost jingle bell sounds in all kind of gifts (sorry for the comparison between these two). But it is next to the normal signal and many db's down. That's why I called it the silver line around the cloud in the beginning. The normal signal sounds OK, not as comfortable like my TR7 audio but very good for normal use as we do (at least for me). I just would like to get rid of this higher freq component which doesn't like to be influenced by whatever control except the power and volume button :-) . I've got 2 K3's and they both give me the same result. I played with all kind of controls (RX-EQ, AGC-SLP/THR, AGC-S/F, AGC ON/OFF) and there is no difference whatsoever! I apologize for being persistent in this. 73's, Evert PA2KW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] both K3 are spoken for - mni tnx de Chris Kf6vci
Only an unbuilt Norcal 2030 kit is left. 73, Chris __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Report for April 5th 6th, 2009
Good Evening, I am now sure spring is nigh. The QRN on 40 meters was testament to its imminent arrival. 20 meters had QSB but then so did 40 meters. 20 meters was quite long because I got HR9 out of the mud. Well actually I got /WQ7R and Kent got the HR9 part. Thank you Kent! I need a better map to be able to find Roatan Island. I will dig for it a little later. QSB on forty meters was interesting. Each time I gave a signal report I would have to amend it the next time around. Thank you for all the reports both of weather and conditions. They help me get a feel for what is going on around the country. My contact with W0CZ elicited a response of: 160 hours of work for the flood relief with the Salvation Army over the last two weeks. You retired folks sure do work hard ;) Thanks Ken; I have lots of relatives in North Dakota and Minnesota. Weather reports were of wintery conditions in many locations. From where I sat I could not tell. It was a very warm day here with full sun. I took advantage of it to walk the far corner of my property. I am still not sure which one was the corner pole. I need to take a bearing and see if I can figure out which one is which. There were two poles within a hundred yards or so of each other. That does not make sense because most of the land around here is parcelled up into sections or parts thereof. The poles do bracket an intermittent stream. It was flowing for a few feet and then dove underground. I scrambled lower and found a nice waterfall of about 18 inches. I sat and listened for a while. On to the lists = On 14050 kHz at 2300z: N0AR - Scott - MN - K2 - 4866 AB9V - Mike - IN - K3 - 398 KL7CW - Rick - AK - KX1 - 798 K9ZTV - Kent - MO - K3 - 21 HR9/WQ7R - Ray - Honduras - K3 - 2808 On 7045 kHz at 0100z: NO8V - John - MI - K3 - 820 W0CZ - Ken - ND - K3 - 457 K9DMV - Joe - IL - K2 - 5628 K6PJV - Dale - CA - K3 - 1183 N0TA - John - CO - K3 - 994 AB9V - Mike - IN - K3 - 398 ** QNI #215 ** W0NTA - Dick - CO - K3 - 1208QNI #90 W0RSR - Mike - CO - K2 - 5767 K1THP - Dave CT - K3 - 686 WC7S - Dale - WY - K2 - 4360 KL7CW - Rick - AK - KX1 - 798 N0AR - Scott - MN - K2 - 4866 W1TF - Ty - GA - K3 - 696 N6IB - Ron - CA - K1 - 1873 WB5BKL - Nick - TX - K3 - 231 As ever, if there are any errors please send me an email so I can repair the database. I am especially unsure of the serial number of N6IB's rig. His signal was experiencing deep QSB so there were moments when he was simply gone. He gave a repeat so I am hopeful this number is correct. I also am missing relay opportunities. Next week I promise I will ask a few of you to call CQ for me and see who you can find. From the East, from the Midwest, from the Southeast and from a Colorado station I think would be adequate coverage. So be prepared. It is not too tough so please help if you can. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] 2.7 KHz filter available
The filter has been sold. Thanks! Steve Ward wrote: Greetings all, I just finished my upgrades to my K3 (DVR, some new filters, several of the mods) and as a result I now have a surplus KFL3A-2.7K. If you are in need of a filter or are looking for a particular offset, this one is -.87 and is available immediately...contact me off list if you are intersted. Steve AD7OG K3/100 #1544 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
