Re: [Elecraft] Cecil Moore's no-tuner ANT
Hello Frank May I ask what relays you use? I imagine there are some high voltages under some conditions. Do you run high power? Thanks David G3UNA - Original Message - From: Frank R. Oppedijk f.opped...@avista.nl To: Elecraft_List elecraft@mailman.qth.net Sent: Thursday, March 19, 2009 5:12 AM Subject: Re: [Elecraft] Cecil Moore's no-tuner ANT Hi Duane, I do happen to use Cecil Moore's ladder network and switch it from inside the shack. I didn't program a PIC but used a third-party BCD-to-band decoder to decode the K3 band data that's available on the AUX connector, followed by some diode logic driving the 1' to 16' relays outside. Works like a charm! I use this ladder network for a couple of months now. Just bagged my first VK on 80m Tuesday night, on my low (10m high) 2x24m doublet at first try, so I'm not complaining. If there's serious interest in it, I can draw up some info on what I did and make it available publicly. 73, Frank PA4N At 00:41 18/03/2009, dw wrote: Hey Paul If one were to put a programmed PIC and some latching-relays together, one could switch that ladder network from inside the shack! :^] Wouldn't that be cool!! Duane __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft Sales service
It is not Elecraft - our once excellent mail service in the UK is now under the control of Parcel Force - if you want to know more just Google Parcel Farce. High prices and terrible customer service provided by exploited and underpaid staff. Mike -- View this message in context: http://n2.nabble.com/Elecraft-Sales-service-goes-from-bad-to-worse-tp2489040p2501768.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] Average Cost of Used K2/100???
When I sold my K2/100 with the SSB board and the Yaesu knob one year ago, I think I got around $850 to $900. Mine was in pristine condition with all boxes / paperwork and included a custom felt embroidered dust cover. It was 2 yrs old, SN 4000-something. Value of used things can be tough to establish. My first stop is eBay. You can see what stuff sells for there. Then check the other classified sites (eham, qth) and see what folks are listing there, but remember that asking price may not reflect actual value. If the item is still being sold new, then you can often apply a percentage rule. I figure a range of 60% to about 80% of new cost depending on the condition age. With a K2, you have the kit factor that further muddies the water. Is an assembled K2 worth more or less than the kit? The answer varies depending on the buyer. - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike - WB8ICN A friend of mine asked me at a local hamfest this last weekend how much a K2/100 costs these days. I told him that I didn't know. He was thinking somewhere along the lines of $400.00...but I told him that seemed quite low to me. Anyone know what the current cost might be or know of one available? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Firmware 3.03 introducing artifacts?
Hello group, I upgraded to 3.03 the other night, and immediately noticed several fast-tuning birdies in places where I'm 95% sure were not there prior to the update. Switching antenna jacks or removing the antennas all together makes no difference. These birdies are only noticeable on the main receiver and are not present on the sub. Also, while the birdie removal function works, it doesn't seem to do it as described in the release notes. For example, the release notes state that the tool moves the artifact out of the passband within 100 Hz segment. But, I've noticed that if I have a two-tone birdie occurring at 28.135.30 and the other at 28.135.35, using the tool to remove the signal at 28.135.30 doesn't remove the tone at 28.135.35. Am I missing something here? 73, James KC2UEE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Average Cost of Used K2/100???
I am a new Elecraft owner and didn't know much about them when I purchased my K2/100 s/n 0473. I found out the hard way that the deal I thought I was getting was soon squashed once I did most of the upgrades to bring it up to date.(Firmware and Hardware) Still have more to go! Buyer beware. That being said, I ended up paying a decent price and had a great learning experience doing the upgrades, and integrating the KAP100 into a newly built (by me) KAT100, as well as well as building and installing a couple more options. My point make sure you know whats inside the rig you are interested in buying, it will be a major factor on the price you pay. Unless the rig you are considering is up to date and fully loaded, I would recommend getting very familiar with the Elecraft website and all of the options and upgrades available along with the costs of each. If you are working on a budget, don't forget to factor in shipping and builder fees. If you are doing it yourself and have never built before, you may have to factor in the basic tools needed to build the kits you plan on adding to your used rig. In my case, solder, magnifier, cutters, grounding strap, Pana-vice, and soldering station. This stuff adds up fast! Once you have all of this information you should know what you would be willing to pay for a used K2/100. Mike-WB8ICN wrote: A friend of mine asked me at a local ham-fest this last weekend how much a K2/100 costs these days. I told him that I didn't know. He was thinking somewhere along the lines of $400.00...but I told him that seemed quite low to me. Anyone know what the current cost might be or know of one available? 72's/73's...Mikey, WB8ICN www.qsl.net/wb8icn -- http://www.qrpedia.com/ A place for QRP homebrewers to share their projects with the world. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html =^D=^D=^D=^D - W4HDM-DAMON-K2#473 -- View this message in context: http://n2.nabble.com/Average-Cost-of-Used-K2-100tp2500162p2502722.html Sent from the [K2] 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] KX1 - very quiet on 30m and 20m
Don, thanks for that information. Here's what I have. TX appears fine. With 12.3V supply I get the following output: 80m 3.3W; 40m 2.9W, 30m 3.8W, 20m 3W. All measured by an Oakhills Labs QRP meter and a 50 Ohm dummy load. The RX seems to have a problem. I have done a careful check of all trimmer settings. Measuring across the volume control (all controls fully clockwise); XG2 set to 50 microvolts (battery checked!); Fluke 175 true RMS meter (by a lucky coincidence): 40m: 163mV with earbuds connected; 185mV without 20m: 140mV with earbuds connected; 158mV without Leaving the earbuds in, I then tried injecting the XG2 directly on the junction of L6 and the top of the RF gain pot. The difference in audio level is dramatic, particularly on 20m, but I still don't get anywhere near your figures: 40M: normal antenna input 163mV; direct to top of RF gain pot 275mV 20m: normal antenna input 140mV; direct to top of RF gain pot 550mV - getting closer! Other checks I've done: - Made sure that the break in the PCB and subsequent link is OK for the addition of the KXB3080 - Checked L6 for continuity - Checked connections to KXB3080 - and ensured that A B are as shown in the manual i.e. B goes nearest to T1. - Checked all voltages on U6 - within spec - Checked connections of T2 and re-soldered joints (this was supplied by the Mychael) - Checked L3 is the later version with the right number of turns This feels like it may be a problem with the pin diode switches, but that still doesn't really explain why I can't get anywhere near your 0.8V figures across the audio pot. 73 Bob G3YIQ On 18 Mar 2009, at 23:39, Don Wilhelm wrote: Bob, OK, I finished the KX1 up to the point where I am able to give you some numbers. With a 50 uV input at 7040 from my XG2 signal generator, I find 0.866 volts measured across the AF Gain control (control set to maximum) with a high impedance load at the headphone jack. If I plug in headphones (Sony MDR series), the voltage drops to 0.836 volts. Of course, the AGC should be active which will keep the voltage down a bit. The KX1 has the KXB3080 option installed, and the receiver front end is a little more sensitive than either the original KX1 or with the KXB30 installed. With a 1 uV input, I read 38 to 40 mV at the same point - AGC should not be as active at that level. The voltage readings were obtained with a Fluke True RMS reading DMM. 73, Don W3FPR Don Wilhelm wrote: Bob, I can't give you a measurement number right away, I do not have a working KX1 here at the moment, but that value may be possible tomorrow or Friday. If you do not hear quite a loud signal with the 50 uV output from the XG2 (or XG1 with a 20 meter crystal) - with the RF Gain at full clockwise and the AF Gain between 25 and 35% of rotation, then there is something wrong. How is the transmit power output? If that is OK, then the low pass filter is likely OK, and you might want to look at T2. The KX1 audio is not super strong, and having good volume does depend on using sensitive headphones. If your headphones do not have an sensitivity rating greater than 108 dB/mW, then your headphones may be the major problem, see the KX1 manual page 62. 73, Don W3FPR Bob Jones wrote: I've just completed a KX1 build with the 80/30m option and auto atu. It works on all bands but 30m and 20m require the volume control to be fully clockwise and even then it's quiet. I've carried out the recommended checks and everything appears to be fine. Having read the previous posts on 'low audio' there's an element of subjectivity regarding what this means. Does anyone know of a definitive measurement I can make to see if this radio is working as well as it should? For example, I have the XG1 and can inject a 14.060 MHz signal at 1 microvolt or 50 microvolts. With the bandwidth set to maximum, what level of signal should I expect on the input or output of the audio amplifier, or at any other point in the circuit? Any advice gratefully received. Bob, G3YIQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 270.11.18/2009 - Release Date: 03/18/09 07:17:00 __ 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
[Elecraft] Source for Kester Solder
Just wanted to pass along the following. Based on advice from Don Wilhelm, I started looking around for a source for the Kester P/N 24-6337-9703 Type 285 solder with 63/37 content at 0.015 diameter. I purchased a 1-lb roll from MRO2GO.com for $23.80 plus $4.95 USPS shipping. I order it Friday and it arrived yesterday (the following Wednesday). Good on-line service and good price. Ron, AC2C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 tx power issue
Hello group, a friend of mine has a strange problem with his tx power after upgrading to firmware 3.03. However I couldn't reproduce it with my K3 (also 3.03) so I'm asking here. Following test: QRG 3,67 MHz LSB, no ATU, SWR 1:1,2 whistle to the microphone (Heil) TX pwr max about 80 W Tap xmit, pwr=120 W, again whistle to the mic, now also 120 W. Now it is ok until you change the band or power off/on the TRX. Then is starts again with 80 W. About the same with USB. Also the same with ATU. Without PA he has 8 W when whistle, then xmit=12 W, now also 12 W when whistle. ALC about 4-7 bars. A calibration with the utility didn't solved the issue. Any ideas? Many thanks in advance! Frank, DD7ZT (for my friend Dennis, DG6HD) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KAT3 settings storage
Firmware beta 3.03 significantly increases the number of settings automatically stored for the KAT3. Are the settings stored on the KAT3 board, or is general storage used? The KAT3 schematic shows three critters, but it's not clear to me if they are capable of both storage and relay control, or only the latter. 73, Paul W8TM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Future Accessory?
Elecraft: ? Outstanding progress on the K3.? My next to last request has been finalized; ATU memories.? ? Now, may I suggest a final want?? How about a remote tuning POD similar to what's used by TenTec on their latest series of radios.? I have used the Griffin Powermate, but it will not integrate with anything else on the serial bus. ? Thanks for the bandwidth. ? 73, Dan -- N3ND ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 tx power issue
G'day, looks like the maximum available power setting for SSB really does need cropping to 100W in firmware. Regards, Mike VP8NO | Tap xmit, pwr=120 W, again whistle to the mic, now also 120 W. Now it is | ok until you change the band or power off/on the TRX. Then is starts | again with 80 W. About the same with USB. Also the same with ATU. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 tx power issue
Check TXG VCE - what is the setting? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Frank Lammel Sent: Thursday, March 19, 2009 10:15 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 tx power issue Hello group, a friend of mine has a strange problem with his tx power after upgrading to firmware 3.03. However I couldn't reproduce it with my K3 (also 3.03) so I'm asking here. Following test: QRG 3,67 MHz LSB, no ATU, SWR 1:1,2 whistle to the microphone (Heil) TX pwr max about 80 W Tap xmit, pwr=120 W, again whistle to the mic, now also 120 W. Now it is ok until you change the band or power off/on the TRX. Then is starts again with 80 W. About the same with USB. Also the same with ATU. Without PA he has 8 W when whistle, then xmit=12 W, now also 12 W when whistle. ALC about 4-7 bars. A calibration with the utility didn't solved the issue. Any ideas? Many thanks in advance! Frank, DD7ZT (for my friend Dennis, DG6HD) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [HAM] Cecil Moore's no-tuner ANT
Frank, I would be interested in the details on your switching arrangement, including the relays and power level you are using. Thanks, Chuck, AE4CW If there's serious interest in it, I can draw up some info on what I did and make it available publicly. 73, Frank PA4N -- View this message in context: http://n2.nabble.com/Re%3A-Cecil-Moore%27s-no-tuner-ANT-tp2494512p2503590.html Sent from the [HAM] 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] KAT3 settings storage
On Mar 19, 2009, at 8:36 AM, Paul Kirley wrote: Firmware beta 3.03 significantly increases the number of settings automatically stored for the KAT3. Are the settings stored on the KAT3 board, or is general storage used? Hi Paul, The ATU settings are stored in the K3's front panel EEPROM. The KAT3 itself has only relay drivers. 73, Wayne N6KR --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Firmware 3.03 introducing artifacts?
Hi James, I upgraded to 3.03 the other night, and immediately noticed several fast-tuning birdies in places where I'm 95% sure were not there prior to the update. Fast-tuning birdies are a function of coax cable locations and synthesizer frequencies. Firmware changes should have no impact on them. If you're sure the new ones weren't there before, try writing them down and reloading an older version to make sure. Also, while the birdie removal function works, it doesn't seem to do it as described in the release notes. For example, the release notes state that the tool moves the artifact out of the passband within 100 Hz segment. But, I've noticed that if I have a two-tone birdie occurring at 28.135.30 and the other at 28.135.35, using the tool to remove the signal at 28.135.30 doesn't remove the tone at 28.135.35. In many cases you'll need to remove the birdie from two or three adjacent 100-Hz segments. This is more likely with wide bandwidths than narrow. Just use the same procedure on each one. Test it by sweeping the VFO across the entire area after all audible birdies are mapped out. 73, Wayne N6KR --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3: v3.03 firmware
I note that the new firmware does not include to facility whereby the Monitor level is preset when sending from the DVR. Am I right in assuming that this is on the list for a forthcoming release? 73 -- David G4DMP Leeds, England, UK -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: v3.03 firmware
David Pratt wrote: I note that the new firmware does not include a facility whereby the Monitor level is pre-set when sending from the DVR. Am I right in assuming that this is on the list for a forthcoming release? Yes. (I've thought of cloning myself so two of me can write firmware, but my wife said she could keep one busy around the house.) 73, Wayne N6KR --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 tx power issue
I have read on this forum that the startup as shutdown settings are not saved unless you power down with the POWER button. The K3 reverts to previous settings if shut down by powering down with the power supply. I have not experimented with this, but could this be the problem? Like a previous commenter, I don't think it a wise practice to operate at 120 watts because the purity specs are not guaranteed above 100 watts. Willis 'Cookie' Cooke K5EWJ --- On Thu, 3/19/09, Frank Lammel dd...@yahoo.de wrote: From: Frank Lammel dd...@yahoo.de Subject: [Elecraft] K3 tx power issue To: elecraft@mailman.qth.net elecraft@mailman.qth.net Date: Thursday, March 19, 2009, 7:15 AM Hello group, a friend of mine has a strange problem with his tx power after upgrading to firmware 3.03. However I couldn't reproduce it with my K3 (also 3.03) so I'm asking here. Following test: QRG 3,67 MHz LSB, no ATU, SWR 1:1,2 whistle to the microphone (Heil) TX pwr max about 80 W Tap xmit, pwr=120 W, again whistle to the mic, now also 120 W. Now it is ok until you change the band or power off/on the TRX. Then is starts again with 80 W. About the same with USB. Also the same with ATU. Without PA he has 8 W when whistle, then xmit=12 W, now also 12 W when whistle. ALC about 4-7 bars. A calibration with the utility didn't solved the issue. Any ideas? Many thanks in advance! Frank, DD7ZT (for my friend Dennis, DG6HD) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Firmware 3.03 introducing artifacts?
James, These fast tuning birdies depend on the mode selected, the roofing filter selected, and the position of the shift control. If any of these was changed between the last time you looked and this time, that could account for a change between the two versions. The birdie removal is not as simple as just finding the birdie and turning the knob. If you are tuning at the fast VFO rate (50 Hz per step), you may not be getting quite enough information to see and control what is happening. If you change the rate to 10 Hz per step with the Rate button, it is easier to see what is happening and easier to get the birdie removal working right. Here is an example. With the filter bandwidth set to 2.8 kHz, as you step through frequencies at 10 Hz steps you might hear birdies with the following pitches: 28135.30 - nothing heard. 28135.27 - 2700 Hz. 28135.28 - 2400 Hz. 28135.29 - 2100 Hz. 28135.30 - 1800 Hz. 28135.31 - 1500 Hz. 28135.32 - 1200 Hz. 28135.33 - 900 Hz. 28135.34 - 600 Hz. 28135.35 - 300 Hz. 28135.36 - nothing heard. At the 50 Hz tuning rate, you would only hear this birdie at two spots: 28135.30 - 1800 Hz. 28135.35 - 300 Hz. I assume that's what you meant by a two-tone birdie. OK, with the dial tuned to 28135.30, use the SIG RMV feature. Depending on whether you turn the VFO A knob to the left or to the right, the birdies might be moved either up or down in pitch. Let's suppose you turned the knob in the direction that moves the birdie up in pitch, and that the shift is 1500 Hz (BTW, I have no idea whether that's the right amount, this is just a made-up example). Raising the pitch by 1500 Hz would remove the birdie at 28135.30 all right (it would now be at 3300 Hz, outside your bandpass), but it would change the birdie at 28135.35 to 1800 Hz, which does not remove it. This is the wrong direction to apply the correction for this particular birdie. If you tune at 10 Hz steps, this correction will produce new birdies at 28135.36-28135.39 that weren't even audible before. If you turn the knob in the opposite direction, though, the pitch of the birdie at 28135.30 will be lowered to 300 Hz, and there will be no birdie audible at 28135.31 or higher frequencies. This is almost, but not quite, good enough; so, turn the knob one more step in the same direction and that will eliminate the birdie from the entire range 28135.30 - 28135.39 . Now tune down one 10 Hz step to 28135.29. The birdie is still there at 2100 Hz - the previous adjustment did not affect it. Turning the knob to lower the pitch, like you did in the previous step, will not work - it will make this birdie worse. You need to turn the knob in the opposite direction, to raise the pitch. A one-step rotation will eliminate this birdie from the entire range 28135.20 - 28135.29 . So for this particular birdie, you had to apply two steps in one direction in one 100 Hz segment, and one step in the opposite direction in the adjacent 100 Hz step. Now suppose the birdie goes in the opposite direction, e.g.: 28135.27 - 300 Hz. 28135.28 - 600 Hz. 28135.29 - 900 Hz. 28135.30 - 1200 Hz. 28135.31 - 1500 Hz. 28135.32 - 1800 Hz. 28135.33 - 2100 Hz. 28135.34 - 2400 Hz. 28135.35 - 2700 Hz. In this case, you will need to use the opposite directions for correction compared to the previous case. You will have to raise the pitch of the birdies in 28135.30-39 by 2 steps, and you will have to lower the pitch of the birdies in 28135.20-29 by one step. I hope this helps you understand the birdie removal process better. 73, Rich VE3KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AGC changes not working on main receiver, 3.03, 2.10
I have the new firmware 3.03 with DSP 2.10 I am trying to adjust AGC parameters while in diversity receive mode, CW AGC-F. When I adjust AGC THR the sub receiver (left speaker in my set up) obviously changes loudness (8 is maximum background noise, 2 is minimum), the main receiver has no change and the background noise is about equal when I set AGC THR at 2. AGC SLP shows the same problem, max background noise at SLP = 000, minimum with SLP = 15. Main Rx indicates no change. With sub receiver off AGC parameter changes have no effect on Rx. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) NAQCC 3535 K3-100 #508 / KX1 #1311 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [Fwd: Fwd: Fwd: Stupidity awards]
Original Message Subject:Fwd: Fwd: Stupidity awards Date: Thu, 19 Mar 2009 13:30:46 -0400 From: countreebump...@cox.net Subject: Fwd: Stupidity awards Date: Wed, 18 Mar 2009 12:44:56 -0400 To: undisclosed-recipients:; ?The glorious Winners?for 2008?are?: NOTE - not snope verified for those so inclined to be concerned. 1. When his 38-caliber revolver failed to fire at his intended?ictim during a hold-up in Long Beach , California , would-be?robber James Elliot did something that can only inspire wonder.? He peered down the barrel and tried the trigger again. This time it?worked. 2. The chef at a hotel in Switzerland lost a finger in a meat-cutting machine and submitted a claim to his insurance company.?The company expecting negligence sent out one of its men to have?a look for himself. He tried the machine and he also lost a?finger. The chef's claim was approved. 3. A man who shoveled snow for an hour to clear a space for his car during a blizzard in Chicago returned with his vehicle to find a woman had taken the space. Understandably, he shot her. 4. After stopping for drinks at an illegal bar, a Zimbabwean bus driver found that the 20 mental patients he was supposed to be transporting from Harare to Bulawayo had escaped. Not wanting to admit his incompetence, the driver went to a nearby bus stop and offered everyone waiting there a free ride. He then delivered the passengers to the mental hospital, telling the staff that the patients were very excitable and prone to bizarre fantasies.??The deception wasn't discovered for 3 days. 5. A Texas teenager was in the hospital recovering from seriou s head wounds received from an oncoming train. When asked how he received the injuries, the lad told police that he was simply trying to see how close he could get his head to a moving train before he was hit. 6. A man walked into a Louisiana Circle-K, put a $20 bill on the counter, and asked for change.? When the clerk opened the cash drawer, the man pulled a gun and asked for all the cash in the register, which the clerk promptly provided. The man took the cash from the clerk and fled, leaving the $20 bill on the counter. The total amount of cash he got from the drawer was $15. 7. Seems an Arkansas guy wanted some beer pretty badly. He decided that he'd just throw a cinderblock through a liquor store window, grab some booze, and run. So he lifted the cinderblock and heaved it over his head at the window. The c inderblock bounced back and hit the would-be thief on the head, knocking him unconscious . The liquor store window was made of Plexiglas. The whole event was caught on videotape. 8. As a female shopper exited a New York convenience store, a man grabbed her purse and ran.? The clerk called 911 immediately,?and the woman was able to give them a detailed description of the snatcher. Within minutes, the police apprehended the snatcher. They put him in the car and drove back to the store. The thief was then taken out of the car and told to stand there for a positive ID. To which he replied, 'Yes, officer, that's her. That's the lady I stole?the purse from.' 9. The Ann Arbor Michigan News crime column reported that a man walked into a Burger King in Ypsilanti , Michigan , at 5 a.m., flashed a gun, and demanded cash. The cle rk turned him down because he said he couldn't open the cash register without a food order. When the man ordered onion rings, the clerk said they weren't available for breakfast.??The man, frustrated, walked away. **THE 5-STAR STUPIDITY AWARD WINNER* 10. When a man attempted to siphon gasoline from a motor home parked on a Seattle street, he got much more than he bargained for. Police arrived at the scene to find a very sick man curled up next to a motor home near spilled sewage. A police spokesman said that the man admitted to trying to steal gasoline and plugged his siphon hose into the motor home's sewage tank by mistake. The owner of the vehicl e declined to press charges, saying that it was the best laugh he'd had in a very long time. In the interest of bettering human kind please share these with your friends and family. A Good Credit Score is 700 or Above. See yours in just 2 easy steps! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AGC changes not working on main receiver, 3.03, 2.10
Mike, there's an AGC problem with DSP rev 2.10 that we didn't catch. For now, set AGC DCY to SOFT. We hope to resolve this quickly. tnx Wayne N6KR On Mar 19, 2009, at 10:34 AM, Mike Scott wrote: I have the new firmware 3.03 with DSP 2.10 I am trying to adjust AGC parameters while in diversity receive mode, CW AGC-F. When I adjust AGC THR the sub receiver (left speaker in my set up) obviously changes loudness (8 is maximum background noise, 2 is minimum), the main receiver has no change and the background noise is about equal when I set AGC THR at 2. AGC SLP shows the same problem, max background noise at SLP = 000, minimum with SLP = 15. Main Rx indicates no change. With sub receiver off AGC parameter changes have no effect on Rx. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) NAQCC 3535 K3-100 #508 / KX1 #1311 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Bose noise canceling headphones
Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Frank: re-Cecil Moore's no-tuner ANT
Hey Frank, I would dearly love to see the BCD-decoderBCD-decoder method.( if its convenient) I have often thought of that. If I remember the BCD has a total word value of 15 (decimal) ...right? Thanks, Duane Hi Duane, I do happen to use Cecil Moore's ladder network and switch it from inside the shack. I didn't program a PIC but used a third-party BCD-to-band decoder to decode the K3 band data that's available on the AUX connector, followed by some diode logic driving the 1' to 16' relays outside. Works like a charm! I use this ladder network for a couple of months now. Just bagged my first VK on 80m Tuesday night, on my low (10m high) 2x24m doublet at first try, so I'm not complaining. If there's serious interest in it, I can draw up some info on what I did and make it available publicly. 73, Frank PA4N -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bose noise canceling headphones
They work great with constant type noise sources such as engines, fans, AC etc. You can still hear people talking in the background, books drop. I have a pair and love them! CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw Sent: Thursday, March 19, 2009 1:50 PM To: Elecraft_List Subject: [Elecraft] Bose noise canceling headphones Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I bought some noise cancelling Sennheisers in Changi Airport a couple of years ago, they were not as expensive as the Bose, but not far off. They did a fantastic job of cancelling the sorts of frequencies which are troublesome in a jet; I found that I could turn my iPod right down and still hear it. However, in a domestic situation I find that although they do reduce extraneous noise, they don't do a wonderful job of it and the background hiss caused by the amplifier I find unsettling. Such hiss would not have been audible in a noisy environment such as a jet. Now it might be that the Bose are very very much better, but it might be worth trying to find out before lashing out $$$'s! Hope that helps 73 Stephen G4SJP On 19/03/2009 19:49, dw bw...@fastmail.fm wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS --- On Thu, 3/19/09, dw bw...@fastmail.fm wrote: From: dw bw...@fastmail.fm Subject: [Elecraft] Bose noise canceling headphones To: Elecraft_List elecraft@mailman.qth.net Received: Thursday, March 19, 2009, 7:49 PM Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KX1 Construction Has Started
For anyone that cares to follow my progress, I've started construction of the KX1 kit and am posting the progress on my website. http://www.ac2c.ronbower.us/KX1-Project.html 73, Ron, AC2C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
A lot of guys here at work have the Bose NC headphones to try to cancel out nearby office noise. I suspect they work OK in that application and no better. Doesn't Bose have a liberal return policy? You could answer your own question by ordering a pair and seeing if they work for you. If not, ship them back for a refund. I use a pair of $100 Sony over the ear headphones with my K3. They're not noise cancelling but they do reduce the background noise enough to be worth having. - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I tried a pair in a bose store and was unimpressed, cant turn the gain up enough, so I built my own, they are a safety hazard now :) Matt W8ESE On Thu, Mar 19, 2009 at 3:24 PM, Darwin, Keith keith.dar...@goodrich.com wrote: A lot of guys here at work have the Bose NC headphones to try to cancel out nearby office noise. I suspect they work OK in that application and no better. Doesn't Bose have a liberal return policy? You could answer your own question by ordering a pair and seeing if they work for you. If not, ship them back for a refund. I use a pair of $100 Sony over the ear headphones with my K3. They're not noise cancelling but they do reduce the background noise enough to be worth having. - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
Ken, thanks for including the battery information. I have been attracted to the idea of noise-cancelling headphones for years, but never had enough information about the power sources. My interest has never been urgent enough to write or telephone the manufacturers. Curiously, mose advertisements don't mention that aspect at all. When I had a job, I wanted a pair that could be powered through a wall wart. In the rare occasions that I am on an airplane I would want to use disposable batteries. The worst possible situation in my opinion would be to have to use rechargeables. For daily use they create extra work, and for occasional use they are never ready when needed. 73, Erik K7TV - Original Message - From: Ken Alexander k.alexan...@rogers.com To: Elecraft_List elecraft@mailman.qth.net; dw bw...@fastmail.fm Sent: Thursday, March 19, 2009 1:08 PM Subject: Re: [Elecraft] Bose noise canceling headphones I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FILTER selection.
Hello friends: I know that this question has been done, but i have to ask to be sure of to buy the correct. I own a k3/100 with ATU and Receiver antenna input. It has original 2700 - 5 pole filter. I use my k3 for ssb and rtty contest and some dx in the same modes. Some questions: If i buy 2800 - 8 pole filter. Do i have to extract the 2700 filter? If i have the 2 filters (2700 and 2800) in the radio and i have the bandwidth at 2400 hz. What filter is used? Normally i like use 2200 and 2000 in my Icom for SSB and 400 for RTTY. What is your advice for filters? TNX a lot for your help. -- Rubén Navarro Huedo - EA5BZ http://www.palotes.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] Bose noise canceling headphones
I've been using a pair of Direct Sound's Extreme Isolation headphones for years. They are very good for blocking out noisy environments. They are not noise canceling, but rather use passive techniques (tight fit, sound absorbing material) to reduce ambient noise by 29dB (or so they claim). They are not the most comfortable to wear for long periods, but they are very effective. http://www.extremeheadphones.com/ex-29.html 73 -- Joe KB8AP On Mar 19, 2009, at 12:49 PM, dw wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
At 3/19/2009 04:58 PM, Erik N Basilier wrote: Ken, thanks for including the battery information. I have been attracted to the idea of noise-cancelling headphones for years, but never had enough information about the power sources. My interest has never been urgent enough to write or telephone the manufacturers. Curiously, mose advertisements don't mention that aspect at all. When I had a job, I wanted a pair that could be powered through a wall wart. In the rare occasions that I am on an airplane I would want to use disposable batteries. The worst possible situation in my opinion would be to have to use rechargeables. For daily use they create extra work, and for occasional use they are never ready when needed. I use and have used my Bose (QC-1 and QC-2) for years on rechargeable AAA batteries. (The QC-3 comes with an internal rechargeable battery.) Work great and most of the time can get an entire contest in on one battery/charge. I keep some spares with me. I can always buy a primary cell if I am caught somewhere without a charged battery, which hasn't happened yet in years of use. Using AC mains is the worst. It could introduce ground loops, hum, tether you to a power source, extra wire tangle, etc. 73, Erik K7TV - Original Message - From: Ken Alexander k.alexan...@rogers.com To: Elecraft_List elecraft@mailman.qth.net; dw bw...@fastmail.fm Sent: Thursday, March 19, 2009 1:08 PM Subject: Re: [Elecraft] Bose noise canceling headphones I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I've used the Etymotic ER-6 which is an in-ear solution with claimed average noise reduction of 34-36 dB for ~$85 at amazon.com. http://www.etymotic.com/ephp/er6.aspx The only problem with the ER-6 is it may be uncomfortable for some people. I've worn them in contests and had no problems for extended periods (i.e. 14-15 hours per sitting). My personal favorite now is the Extreme Isolation EX-29. These are over-the-ear headphones that have 29 dB average rejection and can be found for ~$90. http://www.extremeheadphones.com/ex-29.html I had Prof. Amar Bose for my introductory circuit theory class in 1963. He was a great teacher, but IMHO there are much better noise-reduction solutions available for much less money. 73, Bill P.S. I also once borrowed a David Clark aviation headset from a pilot friend. They were worse than awful...uncomfortable, did not block sound well and sounded distorted. -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505571.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] External keyer.
I don't know if this will be possible. In Icom radios you can contruct a simple external keyboard to use with the vocie and cw keyer. is this possible with k3 or has to be used k3 keys for this? -- Rubén Navarro Huedo - EA5BZ http://www.palotes.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] Frank: re-Cecil Moore's no-tuner ANT
Actually BCD goes from 0 to 9. As far as I remember BCD means Binary Coded DECIMAL. 73 Arie PA3A -Oorspronkelijk bericht- Van: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] Namens dw Verzonden: donderdag 19 maart 2009 20:55 Aan: Elecraft_List Onderwerp: [Elecraft] Frank: re-Cecil Moore's no-tuner ANT Hey Frank, I would dearly love to see the BCD-decoderBCD-decoder method.( if its convenient) I have often thought of that. If I remember the BCD has a total word value of 15 (decimal) ...right? Thanks, Duane __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I found a review of the QC3 below: Over the entire frequency range, they block an average of about 15 dB of noise http://www.headphoneinfo.com/content/Bost-QuietComfort3-Headphones-Review/Performance.htm (scroll down to the last graph ~75% of the way down the page. 73, Bill -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505587.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] Bose noise canceling headphones
That's another important consideration if you order a pair of Bose phones for a tryout. I can report that my Sonys we not affected by my 80m CW (QRP) operation during Field Day. I was also in the midst of 5 QRO operators as well and had no RFI problems from them either. Maybe I was just far enough away. 73 - Ken --- On Thu, 3/19/09, Sverre Holm la...@nrrl.no wrote: From: Sverre Holm la...@nrrl.no Subject: [Elecraft] Bose noise canceling headphones To: elecraft@mailman.qth.net Received: Thursday, March 19, 2009, 9:22 PM I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] OT Bose noise canceling headphones
I too use the EX29 phones and find them to be very comfortable and believe me, you won't ever have to worry about hearing the amplifier fan. In fact, the phone, someone knocking at the door, the furnace going on etc. 73, Bob K3UL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I use the Heil quiet phones plus headset and have never had any RFI issues running a KW. And they are amazing at blocking noise. I had an AL1500 that was surely on the loud side but when I put these quiet phones on you hardly notice it's there. - 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Mar 19 14:51 , W0MU Mike Fatchett sent: I have seen rfi issues with the QC2 and the Heil noise cancelling headsets. A couple of turns through a snap on fixed that. Neither are great at random shack noises but both seemed to work very well on fixed sounds like fans. I don't doubt that there are better solutions out there. Bose has one heck of a marketing budget! The folks at Heil told me that they will have some new headphones/sets at Dayton this year that are supposed to be better then the Bose and more rfi proof then their previous headsets and more comfortable. CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net','','','')elecraft-boun...@mailman.qth.net] On Behalf Of Bill W4ZV Sent: Thursday, March 19, 2009 3:40 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Bose noise canceling headphones Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I found a review of the QC3 below: Over the entire frequency range, they block an average of about 15 dB of noise http://www.headphoneinfo.com/content/Bost-QuietComfort3-Headphones-Review/Pe rformance.htm (scroll down to the last graph ~75% of the way down the page. 73, Bill -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505587.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: Elecraft@mailman.qth.net','','','')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: Elecraft@mailman.qth.net','','','')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] Average Cost of Used K2/100???
I have received many responses to my question. Thank you to all who helped me out on this!!! 72's/73's...Mikey, WB8ICN www.qsl.net/wb8icn -- http://www.qrpedia.com/ A place for QRP homebrewers to share their projects with the world. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] S/N 2802 Born!
Hi, Folks. S/N 2802 received 16 March 2009 [around noon] breathed it's first breath of fresh Alabama air on 19 March 2008 at 05:05 P.M. There was a very small parts hiccup but no real problem. Elecraft had it here before it caused ANY delays [FB Customer Service]. Please do as all the books say, run a FULL inventory before you start: you won't be sorry! The K3 Utility worked like a charm. All calabrations and etc went without a hitch using a USB/Serial Adapter on my DELL Inspiron 5150. Now to learn all I need to know about my K3. My sincere thanks to Elecraft and all of it's designers, staff, suppliers and contributors. Hope to hear many of you on the [CW] bands [ ;-) ] Best 72 73. Jim... WA4NTM PS - I must like the work the designers of the K3 do as I have a K1 [S/N 2580] and a SIERRA QRP rig. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
On Thu, 19 Mar 2009 14:33:56 -0700 (PDT), Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I've used the Etymotic ER-6 which is an in-ear solution with claimed average noise reduction of 34-36 dB for ~$85 at amazon.com. http://www.etymotic.com/ephp/er6.aspx The only problem with the ER-6 is it may be uncomfortable for some people. I've worn them in contests and had no problems for extended periods (i.e. 14-15 hours per sitting). Agreed on all counts. I work in pro audio, and have long used the more expensive Etymotic ER4 in-ear phones to mix live music. Their noise isolation is EXCELLENT if the earpiece matches your outer ear well, less satisfactory if it does not. That's very much a matter of every person's ears. These earphones, and competing models sold by Shure, are made primarily for musicians working on stage. I own two pairs of ER4s and three pairs of Shures (three different models). The ER4s and the higher priced Shures are all quite comfortable, and easy to wear for the duration of a contest as anything else I've tried. With all of these higher quality in-ear earphones, you can go to an audiologist and have ear molds made to fit your own ears. That's pretty much the ultimate both in comfort and in noise isolation. I also like and use Sony MDR7506 headphones. They are comfortable and sound great, but have far less isolation. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bose noise canceling headphones
One other comment in this thread re: RFI. I've not seen the Bose cans, but I operate fairly often at N6RO, where a lot of guys bring Heil noise-cancelling headsets. They DO have RFI problems, and Ken's antennas are mostly not very close to the shack (mostly 200 feet or more). K3LR loves the Bose headphones, and uses them extensively in his contesting super-station. I've driven past Tim's station (it's on the frontage road to one of the interstates at the OH/PA border), but I haven't toured it. Some of his antennas ARE pretty close to his shack. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] Birdie's in K2 VFO???
Anyone else notice a birdie when the display is tuned upward from xx.11 to xx.12mc??? It is the transition from any megahertz dot 11 to dot 12. It throws out a loud birdie every time at any MC interval. Does that make sense? I am on 30 meters right now. The display shows 10114.11 then I tune to 10114.12 and I hear the birdie on that transition. It also happens at 10115.11 to 10115.12 and so forth on up the bands. 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] [K2] K2+N1MM
Anyone got any ideas why N1MM logger periodically puts up the lost comm box when it's controlling my K2? It reconnects automatically, and controls the radio just fine, only once the box comes up, I have to manually click OK to get rid of it. I'm using the KUSB adapter I got from E'craft with my K3 to create the COM port, it comes up as COM5. Maybe there's a way to change the polling rate? I'm so far out of my league when it comes to stuff like this ... 73, Fred K6DGW - Northern California Contest Club - CU in the 2009 Cal QSO Party 3-4 Oct 2009 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
They work - about as well as a K3 does - so go buy them now! -- It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err. -Mohandas K. Gandhi (1869-1948) On 19 Mar 2009, at 19:49, dw wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Birdie's in K2 VFO???
Mike, If you can describe that more as a click rather than a birdie, I can offer a solution - run CAL PLL again - be certain the 4 MHz oscillator is set first and the bottom cover is in place. You also may want to re-flow the soldering on RF Board U4 before doing the CAL PLL. With the repetitive frequencies involved, it sounds like more of a PLL problem than a birdie. 73, Don W3FPR Mike-WE0H wrote: Anyone else notice a birdie when the display is tuned upward from xx.11 to xx.12mc??? It is the transition from any megahertz dot 11 to dot 12. It throws out a loud birdie every time at any MC interval. Does that make sense? I am on 30 meters right now. The display shows 10114.11 then I tune to 10114.12 and I hear the birdie on that transition. It also happens at 10115.11 to 10115.12 and so forth on up the bands. 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] [K2] Birdie's in K2 VFO???..Click sound...
Yes a click is a better description. It is very consistent. The soldering is excellent on this radio. Flowed through both sides on everything. I used good equipment and a grounded blue mat bench top. No static issues. I will do that CAL PLL again. The VFO cal is real close to WWV on 10mc and also matches my 3mc oven oscillator and DDS VFO also. I'll do that report back...hi hi... Thanks much, Mike WE0H Don Wilhelm wrote: Mike, If you can describe that more as a click rather than a birdie, I can offer a solution - run CAL PLL again - be certain the 4 MHz oscillator is set first and the bottom cover is in place. You also may want to re-flow the soldering on RF Board U4 before doing the CAL PLL. With the repetitive frequencies involved, it sounds like more of a PLL problem than a birdie. 73, Don W3FPR Mike-WE0H wrote: Anyone else notice a birdie when the display is tuned upward from xx.11 to xx.12mc??? It is the transition from any megahertz dot 11 to dot 12. It throws out a loud birdie every time at any MC interval. Does that make sense? I am on 30 meters right now. The display shows 10114.11 then I tune to 10114.12 and I hear the birdie on that transition. It also happens at 10115.11 to 10115.12 and so forth on up the bands. 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] Bose noise canceling headphones
Hi, The Bose noise cancelling phones work GREAT for repetitive noise like fan noise, rain on the roof (right W0YK?) and other things like that. I have the QC2 having recently upgraded from the QC1s. They are the around the ear model and the muffs have great noise reduction themselves. Fred -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw Sent: Thursday, March 19, 2009 1:50 PM To: Elecraft_List Subject: [Elecraft] Bose noise canceling headphones Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bose noise canceling headphones
No problem with the new QC2's that I have. The QC1s did have an rf interference problem, though. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sverre Holm Sent: Thursday, March 19, 2009 3:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bose noise canceling headphones I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Bose noise canceling headphones - another option
I don't know the 'street' price of the Bose headphones, but the suggested retail puts them on a par with a David Clark H10-30 aviation headset. Over 20dB of passive quieting and a comm quality microphone. I've had a set of H10-40's (27dB) for 20 years. They are indestructible. 73, Bill N2BC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
I have both the Bose and the Heil noise cancelling headsets, hands down the Bose is better. I don't like the big dongle on the Heils, I just wish the Bose had the boom mic on them I've had no RFI with the Bose but have had with the Heil. The Bose is more comfortable but very $$$ Terry __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bose noise canceling headphones
It may be about time to end this OT thread. But, I will say that I used to travel a lot for work, and I chose the Sennheiser noise canceling headphones to make flying less tiring. I think that they sound better than the Bose (with all of its marketing hype). They also cost less than half as much. The battery pack is in a dongle with long life using alkaline batteries. I enjoy having them available. I am biased toward wide frequency response headphones (noise canceling in the shack is less an issue), and I use my Grado hi-fi phones (SR-60) on the K3. My Heil Goldline mic is on a boom in front of my face. 73, Phil, NS7P -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Terry Price Sent: Thursday, March 19, 2009 6:51 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Bose noise canceling headphones I have both the Bose and the Heil noise cancelling headsets, hands down the Bose is better. I don't like the big dongle on the Heils, I just wish the Bose had the boom mic on them I've had no RFI with the Bose but have had with the Heil. The Bose is more comfortable but very $$$ Terry __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
