Re: [Elecraft] [K2] Looking for a UK based expert to debug KSB2
Thanks, Frank, however if you read the email traffic on here relating to this you'll see that we're a bit beyond any jumper problems. I wish it were that simple. 73, Gareth Sent from my iPad On 24 Jan 2015, at 23:09, Frank Krozel kg9hfr...@gmail.com wrote: If I recall there are two jumpers that you needed to add. Frank KG9H On Jan 24, 2015, at 11:57 AM, Gareth - M5KVK m5...@m5kvk.org wrote: OK, I have to admit defeat. I can't see what's wrong with the KSB2 board I built for my K2. I need somebody with more skill than I to take a look. I'd prefer somebody in the UK, simply because of shipping costs. If there is somebody who would be willing to put my board in their own K2 and work out what the problem is, please email me direct at M5KVK at M5KVK dot ORG. I'll send them the board to take a look and,hopefully, get it working. I'll pay reasonable costs of course. 73 Gareth, M5KVK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kg9hfr...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Good time to buy Begali products
On line prices are in Euros, so a more favorable exchange rate will reduce the price in $US -- if ordered on line. Phil W7OX On 1/24/15 11:23 PM, Rick McGaver wrote: If my memory serves me right their pricing is consistent at Dayton, HIGH. And no reflection on the Euro! NK. 9G/7 Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] variac question
On 1/24/2015 9:33 PM, John Cooper wrote: I have a 2000VA chinese variac off ebay looks similar to a staco(. No schematic. It works fine when used normally. Varies my voltage from 0-148V. But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground. Is this normal for a variac? Absolutely not! This is not only dangerous, it is potentially lethal. If there is a UL label on it, no doubt it is counterfeit. II have been using real Variacs and its competing US-brand devices for decades and have never run across something as egregious as that. Were I in your shoes I would cut off the cord and throw the device in the metal recycle bin. You have no idea what other dangerous things were incorporated by accident or by intention. This is not personal - but you get what you pay for. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 Registered Professional Engineer (Electrical) From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Good time to buy Begali products
Regarding Begali's prices at Dayton, they are directly related to the exchange rate. Also, you are not paying for shipping. As for exchange fees, Paypal does a good job of making you dig for the information but you can determine the fee prior to making a transaction. To do so, follow these instructions: log in to your account, click on profile, click on my money, click on currency, enter the required information, then click on calculate. The last time I made a payment in Euros, I think Paypal added about 2.5 points to the exchange rate. Even with that, the cost of dollars to Euros is still at bargain levels compared to what it has been.I don't need any more keys but I must satisfy the K3's lust for a new one now and again so I, er, my K3 is sorely tempted to purchase another one given the current exchange rate. 73,Jim W5QM On Sunday, January 25, 2015 10:25 AM, Phil Wheeler w...@socal.rr.com wrote: On line prices are in Euros, so a more favorable exchange rate will reduce the price in $US -- if ordered on line. Phil W7OX On 1/24/15 11:23 PM, Rick McGaver wrote: If my memory serves me right their pricing is consistent at Dayton, HIGH. And no reflection on the Euro! NK. 9G/7 Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to knowk...@verizon.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Good time to buy Begali products
I think there's a matter of semantics here. I believe the comment that the exchange rate will not affect Dayton prices can be interpreted as Begali will NOT purposely raise their prices BECAUSE of the exchange rate. As the dollar gets stronger, it means their prices will yield the same in Euro as before, except that it will take fewer dollars to buy them. 73, Charlie k3ICH - Original Message - From: Jim Hoge knowk...@verizon.net To: Elecraft Reflector elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 11:44 AM Subject: Re: [Elecraft] OT: Good time to buy Begali products Regarding Begali's prices at Dayton, they are directly related to the exchange rate. Also, you are not paying for shipping. As for exchange fees, Paypal does a good job of making you dig for the information but you can determine the fee prior to making a transaction. To do so, follow these instructions: log in to your account, click on profile, click on my money, click on currency, enter the required information, then click on calculate. The last time I made a payment in Euros, I think Paypal added about 2.5 points to the exchange rate. Even with that, the cost of dollars to Euros is still at bargain levels compared to what it has been.I don't need any more keys but I must satisfy the K3's lust for a new one now and again so I, er, my K3 is sorely tempted to purchase another one given the current exchange rate. 73,Jim W5QM On Sunday, January 25, 2015 10:25 AM, Phil Wheeler w...@socal.rr.com wrote: On line prices are in Euros, so a more favorable exchange rate will reduce the price in $US -- if ordered on line. Phil W7OX On 1/24/15 11:23 PM, Rick McGaver wrote: If my memory serves me right their pricing is consistent at Dayton, HIGH. And no reflection on the Euro! NK. 9G/7 Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to knowk...@verizon.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 Message delivered to pin...@erols.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] variac question
John, I have one that sounds similar to yours. I tested, and it is okay. There is a typo in your post so that I cannot tell for sure what you are describing for voltage points, but I suspect your power cord may not be orientated correctly. Dick, n0ce Ohm Sweet Ohm From: w...@gt.rr.com To: te...@pupman.com; Elecraft@mailman.qth.net Date: Sat, 24 Jan 2015 23:33:01 -0600 Subject: [Elecraft] variac question I have a 2000VA chinese variac off ebay looks similar to a staco(. No schematic. It works fine when used normally. Varies my voltage from 0-148V. But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground. Is this normal for a variac? I was hooking up a electromagnet @5V with the variac off but plugged in and I got a 120V bite even when the dial is all the way to 0. That’s why I started checking it. Ive been running my coil off it with no problems. John Cooper WT5Y __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] variac question
Just to be safe, you might want to check the outlet into which you have connected this variac. If the hot and neutral are reversed, of if the neutral and ground are not bonded in the distribution panel you might see problems like this! I have a similar inexpensive variac that I use on my home-brew hot-wire cutter. I haven't poked around with volt meter, but I haven't been bitten either/yet! Ken - ke4rg -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Cooper Sent: Sunday, January 25, 2015 12:33 AM To: tesla reflector; Elecraft reflector Subject: [Elecraft] variac question I have a 2000VA chinese variac off ebay looks similar to a staco(. No schematic. It works fine when used normally. Varies my voltage from 0-148V. But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground. Is this normal for a variac? I was hooking up a electromagnet @5V with the variac off but plugged in and I got a 120V bite even when the dial is all the way to 0. That s why I started checking it. Ive been running my coil off it with no problems. John Cooper WT5Y __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ke...@arrl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
Gary, Now I remember why I only rarely post on this list. Rick K6LE Not an engineer Not a retired expert in anything Just a ham. On Sun, Jan 25, 2015 at 5:20 AM, Gary - NC3Z nc3z.g...@gmail.com wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. I would of loved to see some data/research/reference as to why this wont work, there are a couple of articles (yes on the internet, but this list is also on the internet) out there that show that paralleling electrets are valid, so I figured I would play around with that configuration. I am by no means an expert on microphones and I am not saying I am right by any means but my experiment showed that it works, well it shows that it doesn't make it worse! I did a lot of on-air A/B testing to make sure that my audio was not being screwed up. I continued this path because the parallel configuration was receiving better reports. Good enough, I will correct my error. Gary Mitchelson NC3Z Davidsonville, MD FM18 NC3Z/4 Pamlico County, NC FM15 www.mitchelson.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Memory Question
Hi, No... There are TWO banks of CW memory. Not VFO, but banks of memory for CW... Look at the programming tool, and you will see BANK 1 and BANK 2. Press and hold REC button on your K3 to switch between BANK 1, and BANK 2. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2015-01-25 at 03:55 +, Harry Yingst wrote: as in both vfo A and B being programmed the same? __ From: David Cole d...@nk7z.net To: elecraft@mailman.qth.net Sent: Saturday, January 24, 2015 10:33 PM Subject: Re: [Elecraft] K3 Memory Question You are more than likely using BANK A and programming Bank B, or vice-verse, with both programed the same this can happen. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2015-01-25 at 03:25 +, Harry Yingst via Elecraft wrote: I also had one that did that I wound up just correcting it on the radio From: Larry Boekeloo lboeke...@sbcglobal.net To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Saturday, January 24, 2015 8:34 PM Subject: [Elecraft] K3 Memory Question I have my K3 memories setup so I can hop and skip around the bands and modes. I use the K3 memory manager and it works well. For instance 20 mtrs: 14.005 CW - Memory 27 14.080 FSK D - Memory 28 14.195 USB - Memory 29 On 30 mtrs I have: 10.105 CW - Memory 24 10.120 CW - Memory 25 10.140 FSK D - Memory 26 However, every time I go to 10.140 (Memory 26) I have to change the K3 from DATA A to FSK D. I've deleted the memory, rewritten it but it won't stay on FSK D I have every band set up like that and 30 mtrs is the only one I have trouble with. Has anyone seen this or know what I've done incorrectly? Thanks. Larry, KN8N __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.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 Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Good time to buy Begali products
At one time I had a very early March key, before he started putting serial numbers on them and refined the design somewhat. Even at that, it was very nice key. I’ve been selling off my key collection the last few years. I’ve had Jones, G4ZPY (VHS), N2DAN, other Begalis, and a variety of other interesting stuff. The paddles I have left are a Begali Signature and a Vibroplex Deluxe I’ve had forever— and I don’t plan on parting with either. I still like the VIbroplex a lot — they don't have the panache (or the price) of the Begali, but they can be adjusted for a great feel and are exceptionally good paddles IMO. Grant NQ5T On Jan 25, 2015, at 4:02 PM, Charlie T, K3ICH pin...@erols.com wrote: Has anyone on here used a March Magnetic Paddle? Mike's out in Winchester VA and hand makes these individually. I'm not qualified to comment since I can barely use my antique Vibro-Keyer. 73, Charlie k3ICH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3: 'LineOut' problem/question
Problem: Very low to no output on K3 line out jack (for PSK31 use) I am trying to get PSK31 running on my MacbookAir with Cocomodem (through a iMic, to USB port). It has run before, several years ago. I follow K3 manual setup and find the output level is very low. On Cocomodem waterfall, I can see very, very weak signals, could just be noise. I am in Data mode, Data A set. I adjust LIN OUT in Config to maximum, a very slight change in waterfall level. I tried plugging in headphones into the Line out jack to see if there was any change. I hear nothing. I also swapped out my MacbookAir for an iMac desktop, with no change in the problem. To check everything else, I switched cable from Line out jack to Headphones jack, and change the LIN OUT in Config Menu to ‘Headphones’ per the manual. Use same cable and iMic as before. Now, I get signals on the waterfall, and can decode many in CocoModem. So, everything works except the K3 Line out signal. Per tech support, I download schematics and I remove Audio out board to check the chokes, L1 and L2. Read about 4ohms, as do all the similar chokes on the board. Working backwards, I check the transformer that feed the in and out line. T1 and T2 read about 55 ohms on the secondary, seems about right. I did swap out the audio jack board for a replacement from Electraft, thinking it could be a jack problem. No change. Am I missing something simple here? A Menu setting? If not, next troubleshooting steps? OK to email direct instead of posting. 73 Randy - K6CRC k6cr...@gmail.com mailto:k6cr...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 'LineOut' problem/question
To check everything else, I switched cable from Line out jack to Headphones jack, and change the LIN OUT in Config Menu to ‘Headphones’ per the manual. Changing CONFIG:LINE OUT to HEADPHONES does not convert the headphone jack to a Line Out jack. It simply routes headphone audio to the LINE CODEC. If you do not have audio from the LINE OUT jack, the problems are in the CODEC (DSP board), the audio transformers KIO3 board, the jack or the RF chokes. Per tech support, I download schematics and I remove Audio out board to check the chokes, L1 and L2. Does your Audio IO Board have a choke at L3? If so, check it carefully. I have seen L3 fail multiple times which always results in no Line Out audio. 73, ... Joe, W4TV On 2015-01-25 5:51 PM, Randy Cook wrote: Problem: Very low to no output on K3 line out jack (for PSK31 use) I am trying to get PSK31 running on my MacbookAir with Cocomodem (through a iMic, to USB port). It has run before, several years ago. I follow K3 manual setup and find the output level is very low. On Cocomodem waterfall, I can see very, very weak signals, could just be noise. I am in Data mode, Data A set. I adjust LIN OUT in Config to maximum, a very slight change in waterfall level. I tried plugging in headphones into the Line out jack to see if there was any change. I hear nothing. I also swapped out my MacbookAir for an iMac desktop, with no change in the problem. To check everything else, I switched cable from Line out jack to Headphones jack, and change the LIN OUT in Config Menu to ‘Headphones’ per the manual. Use same cable and iMic as before. Now, I get signals on the waterfall, and can decode many in CocoModem. So, everything works except the K3 Line out signal. Per tech support, I download schematics and I remove Audio out board to check the chokes, L1 and L2. Read about 4ohms, as do all the similar chokes on the board. Working backwards, I check the transformer that feed the in and out line. T1 and T2 read about 55 ohms on the secondary, seems about right. I did swap out the audio jack board for a replacement from Electraft, thinking it could be a jack problem. No change. Am I missing something simple here? A Menu setting? If not, next troubleshooting steps? OK to email direct instead of posting. 73 Randy - K6CRC k6cr...@gmail.com mailto:k6cr...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 showing mirrored display
Hi, It looks like the IQ connection between the KX3 and PX3 is not connecting well. You will see this if one channel is not working or if you have a bad connection. 73's Tom -Original Message- From: David Orman Sent: Sunday, January 25, 2015 4:15 PM To: Elecraft Reflector Subject: [Elecraft] PX3 showing mirrored display Hi, This morning when I turned on my KX3/PX3/KXPA100 combination, the display on the PX3 seems to be mirrored to the right/left of the frequency marker. I'm sure I've changed a setting somewhere to cause this, but I don't know which one. I'd appreciate any suggestions on how to resolve this, I already restored configuration to one from the 23rd of December when this was working correclty on my KX3 and PX3 with no luck. Thank you, David __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tom...@videotron.ca --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Good time to buy Begali products
Yes, indeed! I have one and it's very nice. Actually, it belongs to Chuck Adams, K7QO. It's on a somewhat-indefinite loan to me. I found out from a Mutual friend that Chuck didn't care for it that much. Of course, feel is a very subjective matter. It had some minor wear, so I sent it back to Mike for refinishing. Now it's as good as new. It looks good in my collection and, if Chuck ever asks for it back, it's in better shape than when he loaned it to me. 73 de Jim - AD6CW On 1/25/2015 2:02 PM, Charlie T, K3ICH wrote: Has anyone on here used a March Magnetic Paddle? Mike's out in Winchester VA and hand makes these individually. I'm not qualified to comment since I can barely use my antique Vibro-Keyer. 73, Charlie k3ICH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft CW Net Announcement
Good Day, Please join us this afternoon and evening. 14050 kHz at 2300z Sunday (3 PM PST Sunday) 7045 kHz at 0200z Monday (6 PM PST Sunday) 73, Kevin. KD5ONS - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them for their recording. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 5.04 and CQ 160 contest
I heartily second that. I ran a pretty serious effort in NAQP CW last weekend and did a little bit of search pounce in CQ 160 Friday and Saturday nights. The QSK audio artifacts are essentially gone, making for a much more pleasurable contest experience, whether digging for weak signals on 160 or running on a crowded band like 20. Well done! 73... Randy, W8FN On 1/25/2015 12:26 PM, NZ0T wrote: I participated in the CQ 160 CW contest this weekend which was my first contest after loading Beta 5.04. The changed QSK was very evident and greatly reduced listening fatigue! Thanks Elecraft. 73 Bill NZ0T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
Rick wrote: Now I remember why I only rarely post on this list... Same here, Rick. I monitor this list to receive information from Elecraft, and to see what problems others are having with their radios. I have little interest in most of the technical discussions, since they can rapidly deteriorate into ego contests. That is not necessarily the fault of this list, nor of those on this list. It is simply the nature of one-way text discussions, and people with strong technical backgrounds. That is why e- mail has not completely replaced meetings and video conferencing in the business world. Mark KE6BB Rapidly wearing out my Delete key __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] 5.04 and CQ 160 contest
I participated in the CQ 160 CW contest this weekend which was my first contest after loading Beta 5.04. The changed QSK was very evident and greatly reduced listening fatigue! Thanks Elecraft. 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/5-04-and-CQ-160-contest-tp7597508.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 Message delivered to arch...@mail-archive.com
[Elecraft] K3: Spit mode off dial frequency
I had a strange situation yesterday while running on 2m eme. I use a sw program called MAP65 which uses JT65 for Tx/Rx. MAP65 allows one to watch a wide bandspan up to 90-KHz (similar to a panadaptor). To operate VFO-A is set to the middle frequency of the span one wants to observe and one clicks the waterfall display to chose a particular frequency to operate on. In order to transmit there one has to operate split mode so VFO-B controls the Tx. All fine so far, but... Yesterday when I attempted to operate in split mode my actual transmit frequency was +1.5 KHz from what the dial on VFO-B showed?? Turning off split and frequency transmitted was what was shown on VFO-A (which is normal). I have no offsets set in the menu? RIT and XIT were off. Later I tested the radio on 28-MHz by itself and split mode transmitted what VFO-B shows on the dial. But putting the radio back on 2m (transverter mode) and frequency was off again using split mode. I used my EIP538 frequency counter to measure transmit frequency (counter is within 1-Hz of my Rubidium frequency source so very accurate). Well I found out why this was happening (by exploring my manual). In the Menu is a setting called SPLIT SV and it was set=YES. Turning it to NO removed the offset. I have no idea what exactly this setting does but that solved the issue. I even had penciled it yes as the correct setting back when I got the radio (2010). SPLIT SV has to do with something with saving SPLIT, RIT, and XIT by band. If I have a 2m frequency error its normally corrected by XV1 OFS setting. What SPLIT SV accomplishes is beyond me. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Memory Question
I think we may be confusing different kinds of memory. There are CW message memories, in two banks. There are frequency memories that store VFO frequencies and modes, more than a hundred of these... There are also memories for storing strings of commands (macros). Dick, K6KR On Jan 25, 2015, at 08:36, David Cole d...@nk7z.net wrote: Hi, No... There are TWO banks of CW memory. Not VFO, but banks of memory for CW... Look at the programming tool, and you will see BANK 1 and BANK 2. Press and hold REC button on your K3 to switch between BANK 1, and BANK 2. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2015-01-25 at 03:55 +, Harry Yingst wrote: as in both vfo A and B being programmed the same? __ From: David Cole d...@nk7z.net To: elecraft@mailman.qth.net Sent: Saturday, January 24, 2015 10:33 PM Subject: Re: [Elecraft] K3 Memory Question You are more than likely using BANK A and programming Bank B, or vice-verse, with both programed the same this can happen. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2015-01-25 at 03:25 +, Harry Yingst via Elecraft wrote: I also had one that did that I wound up just correcting it on the radio From: Larry Boekeloo lboeke...@sbcglobal.net To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Saturday, January 24, 2015 8:34 PM Subject: [Elecraft] K3 Memory Question I have my K3 memories setup so I can hop and skip around the bands and modes. I use the K3 memory manager and it works well. For instance 20 mtrs: 14.005 CW - Memory 27 14.080 FSK D - Memory 28 14.195 USB - Memory 29 On 30 mtrs I have: 10.105 CW - Memory 24 10.120 CW - Memory 25 10.140 FSK D - Memory 26 However, every time I go to 10.140 (Memory 26) I have to change the K3 from DATA A to FSK D. I've deleted the memory, rewritten it but it won't stay on FSK D I have every band set up like that and 30 mtrs is the only one I have trouble with. Has anyone seen this or know what I've done incorrectly? Thanks. Larry, KN8N __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.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 Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. I would of loved to see some data/research/reference as to why this wont work, there are a couple of articles (yes on the internet, but this list is also on the internet) out there that show that paralleling electrets are valid, so I figured I would play around with that configuration. I am by no means an expert on microphones and I am not saying I am right by any means but my experiment showed that it works, well it shows that it doesn't make it worse! I did a lot of on-air A/B testing to make sure that my audio was not being screwed up. I continued this path because the parallel configuration was receiving better reports. Good enough, I will correct my error. Gary Mitchelson NC3Z Davidsonville, MD FM18 NC3Z/4 Pamlico County, NC FM15 www.mitchelson.org On 1/24/2015 10:15 PM, dyarnes wrote: Gary and all, Whoa! Gary! Don’t get your knickers in a knot. Jim was NOT making a “personal statement”, as you suggest. He was, however, making a definitive comment based on knowledge and experience. That’s all! It would make no sense for him to make some “wishy-washy” critique of your effort when he knows you are heading off in the wrong direction. That could be just as confusing. Of all the people on this reflector, Jim is possibly the most qualified to opine on your effort. Apparently some of what you were trying to accomplish, and suggesting to others, could be seriously misleading as to the actual result! I wouldn’t have known any better, nor would a lot of others, but Jim does, and said so. In effect, all he said is “you are wrong”, but he certainly did not do so in terminology to which you should take offense. I suspect what may have hurt your feelings was just learning that what you thought was a good idea really wasn’t! Heck, we’ve all done that, and me probably more than others. Just be grateful that someone was around, who has appropriate expertise, to prevent your error from becoming an even bigger one! If you are happy with your direction, that’s fine. However, if what you suggest is inconsistent with the physics of the process, folks need to know that as well. That’s a big part of the “beauty” of this reflector. There is a lot of real expertise out there, and I benefit from it regularly. However, if I say something, and I’m on thin ice in doing so, I need to be prepared to be called on it. I don’t want to go down a road that has a dead end, and I certainly don’t want to lead others down that same road! All too often folks tend to take what they read as “gospel” and run with it, so oversight is critical! If we didn’t have people like Jim Brown participating on this reflector I wouldn’t learn much, and I’d probably be off beating my head against the wall on a regular basis! Overall, I think you have a very nice project in process. “Rolling your own” microphone is a good thing, and can be very satisfying as a project. I’ve had a lot of fun doing some of that, and using relatively cheap electret elements to revive old microphone housings, etc. For a few dollars you can duplicate, if not improve on, the results you would get from expensive commercial alternatives. Dave W7AQK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Good time to buy Begali products
That is incorrect. The purchase price is directly affected by the exchange rate. They even provide a link to xe.com on their website so you can figure out the actual cost in $USD. Be aware that there is still an exchange rate fee charged by your bank when you make the transaction, so the final cost will still be higher than the price calculated in xe.com. 73, Tony K4QE On Sun, Jan 25, 2015 at 2:23 AM, Rick McGaver rmcga...@wi.rr.com wrote: If my memory serves me right their pricing is consistent at Dayton, HIGH. And no reflection on the Euro! NK. 9G/7 Sent from my iPad On Jan 24, 2015, at 7:27 PM, Ken G Kopp kengk...@gmail.com wrote: On Jan 24, 2015 7:25 PM, Ken G Kopp kengk...@gmail.com wrote: Jim Check the keys on N3ZN's website. I have one of his straight keys and one of his paddles. Wonderful keys! On Jan 24, 2015 7:20 PM, Jim Lowman jmlow...@sbcglobal.net [KX3] k...@yahoogroups.com wrote: I recently became aware that the Euro has hit a ten-year low against the US dollar. Thus, if you've been wanting a Begali key or paddle, now is a good time to buy it. I'm looking at this beauty: http://www.i2rtf.com/html/sculpture_arrow.html The only other straight key that I have is a Vibroplex. Just a heads-up for anyone who is interested. I have a Begali Sculpture paddle, and it's one of my favorites. Excellent craftsmanship! 72/73 de Jim - AD6CW __._,_.___ -- Posted by: Jim Lowman jmlow...@sbcglobal.net -- Reply via web post https://groups.yahoo.com/neo/groups/KX3/conversations/messages/50721;_ylc=X3oDMTJybWo4dmJvBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM1MDcyMQRzZWMDZnRyBHNsawNycGx5BHN0aW1lAzE0MjIxNTI0Mjc-?act=replymessageNum=50721 • Reply to sender jmlow...@sbcglobal.net?subject=Re%3A%20Good%20time%20to%20buy%20Begali%20products • Reply to group k...@yahoogroups.com?subject=Re%3A%20Good%20time%20to%20buy%20Begali%20products • Start a New Topic https://groups.yahoo.com/neo/groups/KX3/conversations/newtopic;_ylc=X3oDMTJmaGxwaG9uBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNudHBjBHN0aW1lAzE0MjIxNTI0Mjc- • Messages in this topic https://groups.yahoo.com/neo/groups/KX3/conversations/topics/50721;_ylc=X3oDMTM3aG45dnJ2BF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM1MDcyMQRzZWMDZnRyBHNsawN2dHBjBHN0aW1lAzE0MjIxNTI0MjcEdHBjSWQDNTA3MjE- (1) Visit Your Group https://groups.yahoo.com/neo/groups/KX3/info;_ylc=X3oDMTJmZTU4ZDhvBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2Z2hwBHN0aW1lAzE0MjIxNTI0Mjc- - New Members https://groups.yahoo.com/neo/groups/KX3/members/all;_ylc=X3oDMTJncDJpMjl0BF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2bWJycwRzdGltZQMxNDIyMTUyNDI3 11 - New Photos https://groups.yahoo.com/neo/groups/KX3/photos/photostream;_ylc=X3oDMTJnZTZlZG1qBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2cGhvdARzdGltZQMxNDIyMTUyNDI3 4 [image: Yahoo! Groups] https://groups.yahoo.com/neo;_ylc=X3oDMTJlbThqanFyBF9TAzk3MzU5NzE0BGdycElkAzc0NTIwOTQ3BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNnZnAEc3RpbWUDMTQyMjE1MjQyNw-- • Privacy https://info.yahoo.com/privacy/us/yahoo/groups/details.html • Unsubscribe kx3-unsubscr...@yahoogroups.com?subject=Unsubscribe • Terms of Use https://info.yahoo.com/legal/us/yahoo/utos/terms/ . __,_._,___ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcga...@wi.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to anthony.scandu...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Good time to buy Begali products
Another endorsement for N3ZN paddles. I own a ZN9 and very pleased with it. I had a Begali Graciella, too, and sold it when I downsized by station about 6 years ago. kept the N3ZB paddle. Both are outstanding, but, IMO, the ZN is better bang for the buck (or Euro). Barry W2UP Ken G Kopp wrote On Jan 24, 2015 7:25 PM, Ken G Kopp lt; kengkopp@ gt; wrote: Jim Check the keys on N3ZN's website. I have one of his straight keys and one of his paddles. Wonderful keys! -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-Good-time-to-buy-Begali-products-tp7597479p7597492.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 Message delivered to arch...@mail-archive.com
[Elecraft] Reverse Split???
Worked S01WS on 30m backwards last night. By that I mean I wasn't hearing him on the Main RX and just happen to be listening to the Sub RX, tuning around for the pile-up, when I realized I was hearing him and not the pile-up on the Sub. I checked and double checked the settings for both RX to ensure I didn't have something turned on the Main that was causing me not to be able to hear him. Both Main and Sub were set up the same. I could hear him on the Sub, but not the Main, weird. Also, playing in the 160 m contest, I noticed that the Main RX is hearing signals the Sub is not. Even when I have both on the same Freq there is a noticeable difference in what the Main and Sub are hearing. Ideas? 73 de Bruce, N7TY White Plains, MD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 showing mirrored display
Bill F. helped me out, in case other people run into this - I re-seated all the cables (he mentioned the I/Q cable specifically, but I did all just in case) and this solved the problem. David On Sun, Jan 25, 2015 at 3:15 PM, David Orman orma...@corenode.com wrote: Hi, This morning when I turned on my KX3/PX3/KXPA100 combination, the display on the PX3 seems to be mirrored to the right/left of the frequency marker. I'm sure I've changed a setting somewhere to cause this, but I don't know which one. I'd appreciate any suggestions on how to resolve this, I already restored configuration to one from the 23rd of December when this was working correclty on my KX3 and PX3 with no luck. Thank you, David __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
Anything Specific to just the actual elements being in parallel? I do now there is one commercial mic doing this and is supposed to have good reviews. From: Walter Underwood wun...@wunderwood.org To: Harry Yingst hlyin...@yahoo.com; elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 3:57 PM Subject: Re: [Elecraft] My KX3 desk microphone project You could start with these two, read “close miking” in the Wikipedia article. The second article is about speech recording for oral historians, so that is fairly applicable to voice communications. Neither article even mentions using multiple microphones for one person. The Wikipedia article section on stereo recording gives a hint of some of the strange things that can happen with multiple mics. http://en.wikipedia.org/wiki/Microphone_practice http://ohda.matrix.msu.edu/2012/06/understanding-microphones/ Multiple microphones act very similar to phased arrays of antennas. They have directionality and nulls that change with frequency. With a source in one position, they can have a frequency response with a number of peaks and nulls. This is called “comb filtering”. This article goes over that, including the 3-to-1 rule: There is a popular microphone placement adage that is known as the 3 to 1 Rule. The 3 to 1 Rule says that if multiple microphones can hear the same source, then no other microphone should be less than 3 times the distance to the source for the microphone nearest the source. In other words, if a person is talking into a microphone that is one foot away from them, then no other microphone in the room should be closer than 3 feet away from that person in order to minimize comb filtering. http://support.biamp.com/Tesira/Miscellaneous/Comb_filters wunder K6WRU CM87wj http://observer.wunderwood.org/ On Jan 25, 2015, at 12:31 PM, Harry Yingst via Elecraft elecraft@mailman.qth.net wrote: Can you please provide a reference for this? From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 12:48 PM Subject: Re: [Elecraft] My KX3 desk microphone project On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them for their recording. 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 Message delivered to hlyin...@yahoo.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
Re: [Elecraft] Elecraft Digest, Vol 129, Issue 32
Try connecting the input up the other way around. Sounds like the Variac common is wired to the Phase of your wall socket, not the Neutral. Remember too, Variac's do not isolate output from input. Check your house/shack electrical wiring too. From time spent in the US over the years, the domestic wiring sense is often random. Just in case. I've seen the same bad AC wiring in many parts of Europe too, just so it is said. 73 Dave G0WBX --- Original Message --- From: John Cooper w...@gt.rr.com To: tesla reflector te...@pupman.com, Elecraft reflector Elecraft@mailman.qth.net Subject: [Elecraft] variac question Message-ID: 0259E5F216444CFD8A2FC35466035C32@WT5YPC Content-Type: text/plain; charset=utf-8 I have a 2000VA chinese variac off ebay looks similar to a staco(. No schematic. It works fine when used normally. Varies my voltage from 0-148V. But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground. Is this normal for a variac? I was hooking up a electromagnet @5V with the variac off but plugged in and I got a 120V bite even when the dial is all the way to 0. That?s why I started checking it. Ive been running my coil off it with no problems. John Cooper WT5Y __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
The comb filter article is about microphone elements in parallel. Those are widely spaced, but the physics is the same. Even a small array of microphone elements is a substantial fraction of a sound wave. Wavelengths for sound in air are very small. At 3KHz, a full wavelength is about 12cm (under 5 inches). You can get full cancellation at a 1/4 wavelength distance (3cm, ~1.2 inches). A microphone with multiple elements can sound great, then after you move your head an inch or more, sound different. wunder K6WRU CM87wj http://observer.wunderwood.org/ On Jan 25, 2015, at 1:40 PM, Harry Yingst hlyin...@yahoo.com wrote: Anything Specific to just the actual elements being in parallel? I do now there is one commercial mic doing this and is supposed to have good reviews. From: Walter Underwood wun...@wunderwood.org To: Harry Yingst hlyin...@yahoo.com; elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 3:57 PM Subject: Re: [Elecraft] My KX3 desk microphone project You could start with these two, read “close miking” in the Wikipedia article. The second article is about speech recording for oral historians, so that is fairly applicable to voice communications. Neither article even mentions using multiple microphones for one person. The Wikipedia article section on stereo recording gives a hint of some of the strange things that can happen with multiple mics. http://en.wikipedia.org/wiki/Microphone_practice http://ohda.matrix.msu.edu/2012/06/understanding-microphones/ Multiple microphones act very similar to phased arrays of antennas. They have directionality and nulls that change with frequency. With a source in one position, they can have a frequency response with a number of peaks and nulls. This is called “comb filtering”. This article goes over that, including the 3-to-1 rule: There is a popular microphone placement adage that is known as the 3 to 1 Rule. The 3 to 1 Rule says that if multiple microphones can hear the same source, then no other microphone should be less than 3 times the distance to the source for the microphone nearest the source. In other words, if a person is talking into a microphone that is one foot away from them, then no other microphone in the room should be closer than 3 feet away from that person in order to minimize comb filtering. http://support.biamp.com/Tesira/Miscellaneous/Comb_filters wunder K6WRU CM87wj http://observer.wunderwood.org/ On Jan 25, 2015, at 12:31 PM, Harry Yingst via Elecraft elecraft@mailman.qth.net wrote: Can you please provide a reference for this? From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 12:48 PM Subject: Re: [Elecraft] My KX3 desk microphone project On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them
Re: [Elecraft] variac question
Sounds like the off switch is actually a bypass switch. Doesn't seem unreasonable to have a bypass switch on a variac. Consider the wall switch is the on/off switch. 73's Peter VK4JD -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane Sent: Monday, 26 January 2015 2:24 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] variac question On 1/24/2015 9:33 PM, John Cooper wrote: I have a 2000VA chinese variac off ebay looks similar to a staco(. No schematic. It works fine when used normally. Varies my voltage from 0-148V. But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground. Is this normal for a variac? Absolutely not! This is not only dangerous, it is potentially lethal. If there is a UL label on it, no doubt it is counterfeit. II have been using real Variacs and its competing US-brand devices for decades and have never run across something as egregious as that. Were I in your shoes I would cut off the cord and throw the device in the metal recycle bin. You have no idea what other dangerous things were incorporated by accident or by intention. This is not personal - but you get what you pay for. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 Registered Professional Engineer (Electrical) From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to plamb...@qa.com.au __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Spit mode off dial frequency
Disregard what I said yesterday. SPLIT SV function state has no effect on what I am seeing. SPLIT mode in DATA-A mode transmits +1.5-KHz higher than VFO-B displays. I also ran into something else. I can not enter SPLIT frequency mode when in any other modulation mode (SSB/CW/AM/FM) when operating in transverter mode (i.e. XVn=ON). Today I operated by tuning VFO-B 1.5 KHz below the intended operating frequency and I got a report that I was 1-KHz low. When not in SPLIT the system transmits on the correct dial frequency (+/- a few Hz). I guess its time to call Elecraft as this makes no sense at all. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 for sale
From a silent key’s estate: Elecraft K2, sn 05990, bands: 80, 40, 30, 20, 17, 15, 12, 10 Includes KAT2, KNB2, KSB2, and a nice external paddle. Built in 2007 by an expert kit builder. $600 shipped CONUS Carl Yaffey K8NU Recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
You could start with these two, read “close miking” in the Wikipedia article. The second article is about speech recording for oral historians, so that is fairly applicable to voice communications. Neither article even mentions using multiple microphones for one person. The Wikipedia article section on stereo recording gives a hint of some of the strange things that can happen with multiple mics. http://en.wikipedia.org/wiki/Microphone_practice http://ohda.matrix.msu.edu/2012/06/understanding-microphones/ Multiple microphones act very similar to phased arrays of antennas. They have directionality and nulls that change with frequency. With a source in one position, they can have a frequency response with a number of peaks and nulls. This is called “comb filtering”. This article goes over that, including the 3-to-1 rule: There is a popular microphone placement adage that is known as the 3 to 1 Rule. The 3 to 1 Rule says that if multiple microphones can hear the same source, then no other microphone should be less than 3 times the distance to the source for the microphone nearest the source. In other words, if a person is talking into a microphone that is one foot away from them, then no other microphone in the room should be closer than 3 feet away from that person in order to minimize comb filtering. http://support.biamp.com/Tesira/Miscellaneous/Comb_filters wunder K6WRU CM87wj http://observer.wunderwood.org/ On Jan 25, 2015, at 12:31 PM, Harry Yingst via Elecraft elecraft@mailman.qth.net wrote: Can you please provide a reference for this? From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 12:48 PM Subject: Re: [Elecraft] My KX3 desk microphone project On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them for their recording. 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 Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wun...@wunderwood.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:
[Elecraft] PX3 showing mirrored display
Hi, This morning when I turned on my KX3/PX3/KXPA100 combination, the display on the PX3 seems to be mirrored to the right/left of the frequency marker. I'm sure I've changed a setting somewhere to cause this, but I don't know which one. I'd appreciate any suggestions on how to resolve this, I already restored configuration to one from the 23rd of December when this was working correclty on my KX3 and PX3 with no luck. Thank you, David __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
^there is a good article in this months QST on building a mike suitable for a K3,KX3 Bob K3DJC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
Can you please provide a reference for this? From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 12:48 PM Subject: Re: [Elecraft] My KX3 desk microphone project On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them for their recording. 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 Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] My KX3 desk microphone project
When it comes to microphones, you get into religious wars. I happen to like doing live recording work with a stereo ribbon mike that has the capsules basically touching vertically. (Open sound, natural sound field.) A single point pickup results in a 'coherent' recording. The sound is in phase at that one point in space Add additional capsules, and you end up with multiple unknowns on 2 equations. (the 3 point omni decca thing for example.) Simply using a pair of mikes in front of a group gets the cleanest stereo recording.. or a single mike to get a mono recording. Same thing applies on broadcasting. (That is why they use noise gates to turn off idle mikes...so that the pickup of the guy talking isn't added in and cancel him out.) KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them! From: Harry Yingst via Elecraft elecraft@mailman.qth.net To: j...@audiosystemsgroup.com j...@audiosystemsgroup.com; elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 3:31 PM Subject: Re: [Elecraft] My KX3 desk microphone project Can you please provide a reference for this? From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Sunday, January 25, 2015 12:48 PM Subject: Re: [Elecraft] My KX3 desk microphone project On Sun,1/25/2015 5:20 AM, Gary - NC3Z wrote: In my opinion much, much better words should of been choose than seriously misguided, they have connotations that one is an idiot. Seriously misguided would be trying to run a 12V device off 120V. Why? If an idea is seriously misguided, saying so is entirely appropriate. I did not expand on the advice because this is an email reflector dedicated to Elecraft radios, not microphones. There are (at least) three reasons why an array of microphones is a really bad idea. First, really good sounding mics to work with our radios are widely available cheap. Second, a microphone is an electroacoustic device -- it collects sound at a point in space and converts it to voltage. A microphone at a different point in space collects different sound -- there is a difference in time between those sounds, which results in a difference in phase. The difference in phase results in peaks and dips in the frequency response, which in the audio world is called comb filtering. Third, one mic loads another electrically, degrading the performance of each. Third, those of us working in pro audio learned a long time ago that one mic feeding a single channel is always better than one for picking up a single sound source like the human voice. Putting more of them in parallel does not make them work better. When you see two mics on either side of a podium, it's an indication that whoever put them there didn't understand that. As the talker moves side to side, the sound of his/her voice changes due to the cancellation. Almost 40 years ago, I did a couple of big outdoor sound reinforcement gigs for the President, and the White House sound engineers DID understand that -- they studied at the same workshops that I did. They had Shure build a special mic for them with three capsules in it, each coming out on their own shielded twisted pair. Two went to me, the second was for redundancy -- in case wiring for the first one failed. Each went to a different input of my mix console. The third went to them for their recording. 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 Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to billblomg...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
