[Elecraft] Wanted KX1
Best Regards, G. Jude Miller Technology Strategist 6217 Morgan Shores Road Lake Arthur, LA 70549 (337) 214-1122 Home (504) 701-1122 Cell g.jude.mil...@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
Re: [Elecraft] K3 And AL-80B
The AL-80B is easily keyed directly by the K3. You'll need to build an ALC interface cable if you use ALC (I don't). Of course, the AL-80B is not a QSK amp as it normally comes, so you'll need to extend the K3's amp key to RF out delay to about 15ms to keep from hot-switching the K3 output. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 And AL-80B
Keying a modern day amp is easy peasy with the K3. I have an AL-82 and it works great with the K3. Make sure you set the TX depay to about 15 ms as Phil pointed out. Works great. With the older amps, you might have to make some sort of interface, but it might not be necessary. By the waywho needs the stinkin' ALC? I have not used that in years. If your rig is putting out a linear signal and you are not over driving...there is no need. Garbage in equals garbage out. Lee - K0WA Ham Radio Operators: Kansas QSO Party is August 28-29, 2010. See www.ksqsoparty.org for details In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - J. Wolf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Why the KTCXO3-1 ??
Got it. Thanks Knut. -- View this message in context: http://n2.nabble.com/Why-the-KTCXO3-1-tp4615510p4619167.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 needs survey -- firmware and application software
One thing I wish was a stand alone button that could be labeled QRP. I'm always tuning up on 5 watts. VERY simple macro will do this. Try assigning PC005; to one of your macro buttons. I do this already but with using DXLabs...they have programable macro buttons available as well. But you can do it directly to the K3 too. - 73, Greg - AB7R Whidbey Island WA NA-065 On Mon Feb 22 23:01 , -.-. --.-N3TU -.-. --.- sent: Can you make the FM sound sweet? The FM sounds like you're listening to an HT. It doesn't sound as rich as the other modes. Maybe giving the FM a deeper sound. Maybe that's what I mean. I've heard VHF radios and the FM sounds deeper/more base than the K3 unless I don't have something set right on here. How about taking the frequency above 30 mhz. One thing I wish was a stand alone button that could be labeled QRP. I'm always tuning up on 5 watts. If you are going to put two meters into the radio, offer a 100 watt option. -- View this message in context: http://n2.nabble.com/K3-needs-survey-firmware-and- application-software-tp4209832p4617368.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: 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] Elecraft Digest, Vol 70, Issue 43
Message: 4 Date: Mon, 22 Feb 2010 09:43:18 -0800 From: Alan Bloom n...@cds1.net Subject: Re: [Elecraft] Super K3 To: n...@n5ge.com Cc: Elecraft Reflector elecraft@mailman.qth.net Message-ID: 1266860598.1899.10.ca...@ulinux-desktop Content-Type: text/plain; charset=UTF-8 On Mon, 2010-02-22 at 11:19 -0600, Radio Amateur N5GE wrote: ... And I had to walk two miles in the snow to school every morning... Yea, and uphill both ways. Frank - W4NHJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Super K3
Yep. The broad as a barn door reciever thing was a great feature in those days since we were crystal controlled transmit and had no idea where on the Novice band the reply to our CQ would come from. W0FM -Original Message- From: Alan Bloom [mailto:n...@cds1.net] Sent: Monday, February 22, 2010 11:43 AM To: n...@n5ge.com Cc: Elecraft Reflector Subject: Re: [Elecraft] Super K3 On Mon, 2010-02-22 at 11:19 -0600, Radio Amateur N5GE wrote: ... Those of you who weren't hams when you had to do the Novice thing haven't experienced a fully utilized Novice portion of a band. If you didn't have a CW filter it was hard to make a contact that lasted very long. I dunno, I used to make lots of contacts with my trusty Knight Kit Star Roamer. That thing was a real joke of a receiver. The entire novice band was about 1/8 inch wide on the dial. You had to tune reely carefully. The selectivity was broad as a barn door, which was actually a good thing because the receiver never came back to the same frequency after a transmission so you had to tune around to find the station you were working. And I had to walk two miles in the snow to school every morning... Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Super K3
My novice operations spanned the first summer that I had a license, 1954. I had a 25 watt crystal controlled homebrew transmitter which I couldn't get to work on 40 because it was neutralized with a twisted wire capacitor and a Hallicrafters S40B receiver, which was definitely in the broad as a barn door category. I could receive almost the whole 80 meter novice band which was fine in the daytime. I could hear past 20 KHz so I didn't miss much. On the other hand, reception at night was impossible. On the day that I passed the General at the FCC office, I also bought a neutralizing capacitor from Radio Parts at 807 Howard Avenue in New Orleans, which gave the transmitter's 826 triode final stable enough neutralization to work 40. Shortly thereafter, I bought a used HRO-50T which had a five position crystal filter. Heaven! Dunc, W5DC Terry Schieler wrote: Yep. The broad as a barn door reciever thing was a great feature in those days since we were crystal controlled transmit and had no idea where on the Novice band the reply to our CQ would come from. W0FM -Original Message- From: Alan Bloom [mailto:n...@cds1.net] Sent: Monday, February 22, 2010 11:43 AM To: n...@n5ge.com Cc: Elecraft Reflector Subject: Re: [Elecraft] Super K3 On Mon, 2010-02-22 at 11:19 -0600, Radio Amateur N5GE wrote: ... Those of you who weren't hams when you had to do the Novice thing haven't experienced a fully utilized Novice portion of a band. If you didn't have a CW filter it was hard to make a contact that lasted very long. I dunno, I used to make lots of contacts with my trusty Knight Kit Star Roamer. That thing was a real joke of a receiver. The entire novice band was about 1/8 inch wide on the dial. You had to tune reely carefully. The selectivity was broad as a barn door, which was actually a good thing because the receiver never came back to the same frequency after a transmission so you had to tune around to find the station you were working. And I had to walk two miles in the snow to school every morning... Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
Jeff, I would consider an ohm meter reading of a non-inductive resistor to be a better indicator of low SWR than any available SWR meter including the famous Bird (available since about 1940 or before). My MFJ-989C tuner includes a dummy load rated at 300 watts. It appears identical to the 50 ohm resistor in my 35 year old Heath Cantenna but without the can of cooling oil. I also have a 15 watt dummy load that I bought from Radio Shack about 20 years ago that measures 50 or 51 ohms. I would consider any of these good enough to calibrate a watt meter or an SWR meter. Rectifying and measuring the RF voltage will probably induce more error than the resistor. Willis 'Cookie' Cooke K5EWJ From: Jeff Hall, W6EZY w6...@arrl.net To: elecraft@mailman.qth.net Sent: Tue, February 23, 2010 12:13:39 PM Subject: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?) Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
On Tue, 23 Feb 2010 10:13:39 -0800, Jeff Hall, W6EZY w6...@arrl.net wrote: I don't know about the MFJ dummy loads, but I would get low powered air cooled load for it. I use a 25 watt air cooled that I got at a ham fest for most of the testing here. Beware and take an ohm meter with you if you plan to buy one at a ham fest. Not long ago I bought what I thought was a 50 ohm 300 watt air cooled dummy load. When I got it home it measured 78 ohms. Tom, N5GE n...@n5ge.com K3 #806 with SUB RX, K3 #1055, PR6, XV144, XV432, KRC2, W1, 2 W2's and other small kits 1 K144XV on order http://www.n5ge.com http://www.swotrc.net I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
Jeff, The MFJ will work just fine. I use a similar one from Drake which is air cooled for 100 watts. You should not put in a KW into the dummy load...but the MFJ would work OK. MFJ-260C. At 100 watts out...you can use it for 1.5 minutes. Or 25 watts continuous. This should work fine for what you need. Lee - K0WA Ham Radio Operators: Kansas QSO Party is August 28-29, 2010. See www.ksqsoparty.org for details In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - J. Wolf From: Jeff Hall, W6EZY w6...@arrl.net To: elecraft@mailman.qth.net Sent: Tue, February 23, 2010 12:13:39 PM Subject: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?) Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
At 11:13 AM 23/02/10, you wrote: Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. How about the Elecraft DL1. It's easy to build, works great! John k7up __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
Jeff: It all depends on the power level you want the load to handle. Do you want to acquire now a dummy load that will handle the output of a KW amplifier in the future, or just the output of your K3? If it's just the K3, then the MFJ-260C at $40 or so should be fine for 100W for extended periods at the calibration frequencies from 3.7 - 52 MHz. I burned up a much smaller MFJ unit that was an integrated PL-259 and a cylindrical heat sink that could handle 100 watts for very very short periods. During K3 Utility development I stopped the Tx Gain calibration code with a debugger with K3 key down for a bit too long and it Is No More. I don't find that unit in MFJ's catalog now, though. The Tx Gain calibration holds key down for a few seconds (maybe two to ten) on each HF band at 5 and 50 watts in quick succession. You might want to acquire a BNC to PL-259 adapter so that you can put your 50 ohm dummy load onto the XVTR OUT BNC connector for the milliwatt Tx Gain calibration step. That calibration really wants a 50 ohm load, although the power requirement is very small. For K3 Utility development when I run Tx Gain calibration over and over, I keep a Elecraft DL-1 on the XVTR out connector and an AEA DL-1500 (which is overkill) on the main rig ANT2 connector. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jeff Hall, W6EZY Sent: Tuesday, February 23, 2010 10:14 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?) Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
In the good old days you would just build one. Six 300 ohm 1W resistors in parallel between a couple of sheets of PC board, tin can lids or whatever, with a coax connector mounted on one side and the center conductor attached to the opposite sheet and you're done. Older ARRL Handbooks showed something like this---at least my 1999 does---but the new-fangled ones assume that you will buy one. Pity. I assume you're in a hurry so go to HRO and get the MFJ, it will be entirely adequate, as long as they remembered to solder the connections inside. Wes --- On Tue, 2/23/10, Jeff Hall, W6EZY w6...@arrl.net wrote: From: Jeff Hall, W6EZY w6...@arrl.net Subject: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?) To: elecraft@mailman.qth.net Date: Tuesday, February 23, 2010, 11:13 AM Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. HRO is just up the road and they carry some of the less expensive MFJ dummy loads -- would these be sufficient? Not looking to spend a lot of money, but don't want to buy junk either. What factors should I consider? I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads are more compact, but you have to be more careful when operating or they can burn up more easily. The K3 manual says this is just a 5W test and I need a load with low VSWR from 160 to 6. What is considered low SWR? Anything under 1:5? If I can get by with the MFJ-260 for just $40, that sounds reasonable to me. 73 de Jeff, W6EZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
On Mon, 22 Feb 2010 17:35:00 -0500, John Fritze wrote: What I would like to know is: does anyone have some basic settings to start with for transmitting during a contest? That's VERY dependent on your microphone and, to a lesser extent, on your voice. The only constant is that for virtually ALL mics and voices, you should set the two lowest frequency bands to their lowest settings (maximum cut). These frequencies make no contribution to speech intelligibility, so this setting minimizes the power wasted by low frequency sounds, background noise, and breath pops. For the same reason, you might also want to cut the third lowest band a bit. You should make these adjustments BEFORE setting mic gain and compression (following the procedures in the K3 manual). For many mics, that's all you need to do. For others, you may want to do more. You should do that by having another good listener tell you what you sound like with his RX opened up for maximum bandwidth. The two lowest band cut setting is just right for the mic in the Yamaha CM500 headset. With Heil mics, which tend to be harsh, you may want a bit of cut in the higher bands. When I used professional dynamic mics with my K3, I cut bands 3 and 4 and boosted the two higher bands. 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] Super K3
Dunc, Everything is relative and boy can I appreciate your joy with the old HRO. There was a good bit to be said for the Novice Class license. I remember in 1960 operating with a military surplus RBG2 (Super Pro) and TCS crystal controlled in my case tank transmitter. My father(later WA4GHS), when I was age 13 and just back from Boy Scouts Camp gave me his old Hallicrafters S38 originally purchased to listen to the Irish Short Wave Station which never came to be. I used the S38 till age 15 and sold it and along with money from selling doughnuts door to door and some baby sitting money purchased the RGB 2 with the help of K4GHS who also lent me the TCS. Later there were a few home brew rigs and NBFM to get on phone. Those were good days. By age seventeen I had a Drake 2B which took all of a summers work to purchase. Now it is a K3! Life is still good even if the joints are stiff. 73 Doug EI2CN ex KN4WQZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 KPA100 LP filter question
Hi all, I was looking through the schematic for the KPA100 and it looks like the LP filters in the amp remain in the RF path during receive. Is this the case? If so do they provide extra LP filtering on RX? Just sitting here with my finger poised over add to cart on the KPA100 kit and was just wondering about that. Thanks es 73, LS -- View this message in context: http://n2.nabble.com/K2-KPA100-LP-filter-question-tp4621566p4621566.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] K2 KPA100 LP filter question
LS, Yes, the KPA100 low pass filter for the selected band is in the circuit at all times if the KPA100 is connected to the K2. The KPA100 circuits required to change bands, etc are powered from the base K2 through the ribbon cable (the 12CTRL line). The KPA100 T/R switch circuits are bypassed when operating low power, but the LPF and wattmeter are in-line. 73, Don W3FPR lstavenhagen wrote: Hi all, I was looking through the schematic for the KPA100 and it looks like the LP filters in the amp remain in the RF path during receive. Is this the case? If so do they provide extra LP filtering on RX? Just sitting here with my finger poised over add to cart on the KPA100 kit and was just wondering about that. Thanks es 73, LS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K144XV arrives in VK1
Hi All, The K144XV and KXV3A arrived here in Canberra this morning. This is amazing, an excellent world class transceiver now with all those capabilities on 2, my first band hence nostalgic. A few months for the plastic to recover then the second RX the more recovery then the P3. Amazing stuff, thanks to everyone at Elecraft. Cheers, Glen __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
That's VERY dependent on your microphone and, to a lesser extent, on your voice. The only constant is that for virtually ALL mics and voices, you should set the two lowest frequency bands to their lowest settings (maximum cut). These frequencies make no contribution to speech intelligibility, so this setting minimizes the power wasted by low frequency sounds, background noise, and breath pops. For the same reason, you might also want to cut the third lowest band a bit. This keeps popping up -- cut the lows. There may be plenty of reasons to cut the lower frequency ranges at times, but no contribution to intelligibility is not one of them. There is plenty of research around that demonstrates that infrasonic content between 20-80Hz contributes to a less tiring listening environment, adds to presence and realism (the sense you're not listening or talking to the world through a 1940's telephone set) and contributes to improved intelligibility in certain consonants, especially among male speakers. If I wanted to sound like a cockatoo I'd just use the brand deleted for fear of reprisals radio with a 2.1 Khz mechanical filter crystaled so that the low end cutoff was 300Hz :-) Grant/NQ5T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Lost case and cover replies
I apologize for the bandwidth ... I've recently found that at least two of my replies to inquiries about Elecraft covers and/or cases have not been received. If you've requested information from me and have not received a reply, please let me know and I'll resend. 73! Rose Kopp - N7HKW elecraftcov...@rfwave.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?)
I used the DL1 for the 50 watt test and it worked fine. I only transmitted for a few seconds, to get a reading. It gets hot fast, at 50 watts! 73, Rick Dettinger K7MW On Feb 23, 2010, at 10:32 AM, John wrote: At 11:13 AM 23/02/10, you wrote: Hello all, I need help picking out a proper dummy load to use for calibrating my new K3. How about the Elecraft DL1. It's easy to build, works great! John k7up __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Super K3
Doug, It has been said that climbing towers keeps the joints in good shape :-) First licensed in 1946 when a young boy, callsign VQ8AK, Rx a TRF with regen detector, Tx a 6L6 - 807, both homebrewed on breadboards borrowed from my Mother ( I did ask her)! 73, Geoff GM4ESD Doug Turnbull wrote: Life is still good even if the joints are stiff. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 KPA100 LP filter question
Ok thanks Don. BTW, am I correct in observing that only the RF cable to J1, the power cable to J4, the audio cable and the ribbon cable to the control panel are the only connections of the KPA100 to the K2? I.e. does the RS-232 interface go in through the ribbon cable? Looks like it's an easy affair to swap lids and turn it back into a normal 10W K2 with just these connectors? Tnx es 73, LS -- View this message in context: http://n2.nabble.com/K2-KPA100-LP-filter-question-tp4621566p4622166.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] [K3] transmit equalizer settings
If you have an AM filter, it is easy. Just set you rag chew EQ settings on ESSB, and the DX EQ settings on normal. Then you just need to switch back and forth. I don't have an AM filter, and really don't need one, so I am pursuing the macros. I have found the commands needed to set TX EQ. It will be a very long string, so now I will need to find out if there is a limit to how long a macro string can be. If there is enough macro memory, it will work. If successful, I will post a little tutorial on how it's done. 73, Bob The second question would be: Is there a way to save one set of equalizer settings for rag chewing and a second set for pile up busting or contesting so I would only need to push one or two buttons (quick change)? Not sure if the macros would do this, I haven't played with that yet. -- View this message in context: http://n2.nabble.com/K3-transmit-equalizer-settings-tp4615446p4622879.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
On Tue, 23 Feb 2010 15:05:11 -0600, Grant Youngman wrote: There is plenty of research around that demonstrates that infrasonic content between 20-80Hz contributes to a less tiring listening environment, Please cite that research. I'm sure that psychoacoustic professionals would love to hear of work in direct contraction to nearly a century of published research to the contrary. adds to presence and realism There is NO content in human speech below 80 Hz. All that spectrum consists of microphone defects (breath pops, mechanical noise) and room noise. (the sense you're not listening or talking to the world through a 1940's telephone set) and contributes to improved intelligibility in certain consonants, especially among male speakers. FALSE! As a consultant in the design of sound systems for large and small public spaces for 25 years, particularly spaces with difficult acoustics, this is something I've had to learn a lot about. :) The science in this area is not new, and it's been quite well understood for half a century. 73, Jim Brown K9YC Fellow Audio Engineering Society Member Emeritus Acoustical Society of America __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
If there is enough macro memory, it will work. Well there isn't, the limit on a Macro is 120 characters. The problem is, you can't just set an EQ band with a single command. You need to step UP or DN. For example just to set 50Hz to +12 you would use: MN009;Selects TX EQ MenuSWT53;Resets EQ bands to zeroSWT11Selects 50Hz EQ BandUP;UP;UP;UP;UP;UP;UP;UP;UP;UP;UP;UPStep Up 12 times;MN255;Exits Menu As you can see, doing all eight bands would be a lot longer then 120 characters. I did send a long string with the K3 Utility test window, so that is an option. Put the string in a file then copy and paste into K3 util. I will probably just define buttons on HRD to do this. Unless it has a limit. :) -- View this message in context: http://n2.nabble.com/K3-transmit-equalizer-settings-tp4615446p4622959.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
On Tue, 23 Feb 2010 15:05:11 -0600, Grant Youngman wrote: There is plenty of research around that demonstrates that infrasonic content between 20-80Hz contributes to a less tiring listening environment, The big problem I notice with a lot of signals containing a lot of bass, is the stability of some rigs, and tuning skills. Unless you are zero beat on frequency, the bass sounds horrible. If some operators could learn how to tune, and make sure their offsets were aligned properly it wouldn't be as much of a problem. I was listening to two stations on 20 today, and for some reason they couldn't seem to zero beat with those $10K radios. Lot's of bass on the audio, so I had to crank the filter down to 2.4kHz to get the audio to sound decent. It was that or continually tune each station. At 2.4 they both sounded fine. I find myself cranking the filter width to below 2.7 a lot, just to cut out the weird sounding bass as the stations drift. :) But enough of that. We don't need an ESSB vs Tin Can debate. -- View this message in context: http://n2.nabble.com/K3-transmit-equalizer-settings-tp4615446p4623019.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 KPA100 LP filter question
LS, There are no RS-232 signals on the ribbon cable. TXD and RXD are at CMOS levels through the ribbon cable and the conversion to RS-232 levels is done on the KPA100 board. BTW - the AUX I/O connector on the KPA100 (and the KIO2) is just what it says - it is NOT an RS-232 connector although it does contain 3 RS-232 level signals - TXD, RXD and Signal Ground. The remaining lines are K2 dedicated and are used for communicating with external Elecraft equipment such as the KPA100, XV transverters, and the KRC2. Plugging a standard PC computer serial cable into this AUX I/O connector can damage the K2 - build and use only the cable specified in the KPA100 (or KIO2) manual. 73, Don W3FPR lstavenhagen wrote: Ok thanks Don. BTW, am I correct in observing that only the RF cable to J1, the power cable to J4, the audio cable and the ribbon cable to the control panel are the only connections of the KPA100 to the K2? I.e. does the RS-232 interface go in through the ribbon cable? Looks like it's an easy affair to swap lids and turn it back into a normal 10W K2 with just these connectors? Tnx es 73, LS No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2705 - Release Date: 02/23/10 02:34:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2: Almost think I might have licked the little buz fan
Just for kicks I fabricated 6 aluminum fins 2 high and 5.5 long out of .06 aluminum. Pinch fit them every other rib on the right hand top of the K2 heat sink using a touch of arctic silver heat sink past. Ran the unit at full tilt for 2 hours worth of rag-chewing. Checked for heat with my hand every qso and found the top just barely got warm every time. The little buz fan never made a peep. Its ugly fer sure! But so far, its 100 watts of pure silent qso-ing. :~] N1BBR -- 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] [K3] transmit equalizer settings
I use DXLab (http://www.dxlabsuite.com/) as my logging program and its Commander rig control program, which has the capability of user-defined controls. The user-defined controls have the capacity for much longer macros that those sent to the K3 with the K3 Utility program. I switch between a Heil Proset Plus using its HC-4 cartridge for DXing and a Heil PR781 for ragchewing both using the 2.8 kHz filter. (I have no interest in ESSB.) With some (appreciated) K3 macro help from W4TV and from my friend listening to my audio, I have a Commander sequence that includes the TX EQ settings to attenuate the low frequencies and increase the high frequencies for the PR781. By pressing an F key in Commander, or clicking the mouse, I can switch between the two mics, each with its own TX EQ settings and selecting the front-panel (PR781) or rear-panel (Proset Plus) mic jacks. I have the rear panel TX EQ reset to 0 for each frequency band for the HC-4. Each person's voice will be different as will be the desired audio characteristics. I'll be happy to send the Commander user-defined sequence to anyone wanting to play with it. Jim N7US -Original Message- W0GI: Well there isn't [enough macro length to set the K3 TX EQ for all frequency bands]; the limit on a Macro is 120 characters. The problem is, you can't just set an EQ band with a single command. You need to step UP or DN. As you can see, doing all eight bands would be a lot longer than 120 characters. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] transmit equalizer settings
You can set all TX EQ to the center 0 dB position by pressing the CLR button programmatically. Then you can adjust from there. I just put a new macro example into the K3 Utility Help (in a version to be released before long): CUT LO macro: MN009;SWT53; SWT11;DN;DN;DN;DN;DN;DN;DN;DN; SWT12;DN;DN;DN;DN;DN;DN;DN; SWT13;DN;DN;DN;DN; MN255; SWT53; taps the CLR switch to set all audio bands to the 0 dB position. SWT11 and 8 taps brings the 50 Hz band down 8 dB. SWT12 and 7 taps brings the 100 Hz band down by 7 dB. SWT13 and 4 taps brings the 200 Hz band down by 4 dB. The switches labeled 1-8 are SWT11, SWT12, SWT13, SWT24, SWT27, SWT29, SWT33, and SWT34. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob - W0GI Sent: Tuesday, February 23, 2010 4:50 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] transmit equalizer settings If there is enough macro memory, it will work. Well there isn't, the limit on a Macro is 120 characters. The problem is, you can't just set an EQ band with a single command. You need to step UP or DN. For example just to set 50Hz to +12 you would use: MN009;Selects TX EQ MenuSWT53;Resets EQ bands to zeroSWT11Selects 50Hz EQ BandUP;UP;UP;UP;UP;UP;UP;UP;UP;UP;UP;UPStep Up 12 times;MN255;Exits Menu As you can see, doing all eight bands would be a lot longer then 120 characters. I did send a long string with the K3 Utility test window, so that is an option. Put the string in a file then copy and paste into K3 util. I will probably just define buttons on HRD to do this. Unless it has a limit. :) -- View this message in context: http://n2.nabble.com/K3-transmit-equalizer-settings-tp4615446p4622959.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Need to select a dummy load for K3 TX calibration...(advice?)
I have the MFJ 264 http://www.mfjenterprises.com/Product.php?productid=MFJ-264 I have been using this for about 9 months now without a problem. I use it to tune the amp putting about 500 or 600 watts into it for short periods of time with no problems. If you want a nice one that you wont outgrow for a while I would recommend it. I don't like the idea of a can of oil sitting in the house, and why have that heavy paint can full of oil sitting around when you can put this little air cooled unit on the shelf. All for about $75.00. Of course this is overkill for what you need now, but you might consider it if you ever plan on an amp in the future. Ken KE3C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] headset question
Hi guys, I recently ordered a K3 and eagerly await it's delivery. You will likely hear lots more from me as I attempt to get up to speed with it. I have been reviewing the archives of this group and see that the Yamaha CM500 is highly regarded. I plan to purchase one very soon. I have the K3 manual open to page 17 (the pdf from Elecraft website). It looks like the stero headset plug goes into the jack marked phones', the mic plug goes into the jack marked mic and a foot switch plug goes into the jack marked PTT IN Now for my question. I have a Heil footswitch and plan to use it for PTT. Is the configuration I described correct? If not, how is headphone/mic and footswitch connected? TIA and 73 de Paul, NU4C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] headset question
Paul, You have it right - just plug it in, assuming that the footswitch plug matches the K3 jack - the headphone/mic connectors will plug right into the rear K3 jacks. Don't forget to set the Mic to rear and the bias on for the CM500. 73, Don W3FPR Paul Milward wrote: Hi guys, I recently ordered a K3 and eagerly await it's delivery. You will likely hear lots more from me as I attempt to get up to speed with it. I have been reviewing the archives of this group and see that the Yamaha CM500 is highly regarded. I plan to purchase one very soon. I have the K3 manual open to page 17 (the pdf from Elecraft website). It looks like the stero headset plug goes into the jack marked phones', the mic plug goes into the jack marked mic and a foot switch plug goes into the jack marked PTT IN Now for my question. I have a Heil footswitch and plan to use it for PTT. Is the configuration I described correct? If not, how is headphone/mic and footswitch connected? TIA and 73 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] headset question
You have a couple of choices. If you prefer front panel connections, you'll probably want a Heil Sound AD-1K adapter or make up an equivalent. The AD-1K adapter has a 8-pin Foster plug that connects to the K3 front panel microphone connector, and has a 1/4 phone jack for your footswitch and a 3.5mm jack for your microphone connector. The Yamaha CM500 headset comes with a 3.5mm stereo phone plug with a 1/4 adapter sleeve, and you'd use that adapter to plug into the K3's front panel headset connector. This is a traditional front panel arrangement. Some prefer this arrangement because it's easy to pull the headphone plug out to enable the radio's speakers. Others prefer the clean front panel arrangement where the headset connectors are all on the back. You remove the 1/4 sleeve from the Yamaha CM500 headphone plug and plug the 3.5mm microphone and 3.5mm headphone connectors into the K3 back panel mic and phone jacks. There are a couple of versions of Heil footswitch. The current FS-2 has two wires, one with a 1/4 phone plug and another with an RCA plug. If you have the FS-2, you might plug its RCA plug directly into the K3's back panel PTT RCA jack. If you have the older Heil FS-1 which has just a 1/4 phone plug, you'll need to replace that plug with an RCA plug, or find or create a small adapter that has a 1/4 phone jack to an RCA plug. The K3 back panel PTT jack is an RCA jack. If you use the clean front panel arrangement, you can enable the radio's speaker by changing the K3 configuration menu SPKR+PH to enable both the headphones and speaker at once, and you can set up macro functions to turn that on and off if you prefer pressing a front panel button. Or you can reach around and unplug the headphone connector from the back panel. PTT is also available on the K3 back panel 15-pin accessory connector, so if you're planning to wire that yourself, you might include a 1/4 phone jack as part of your plan. I prefer the clean back panel arrangement, my headphones and radio PTT actually are connected through a microHAM SO2R control box. I use the Yamaha CM-500 headset, as well as several Heil products depending on my mood. I like to change headsets from time to time during contests to change the pressure points. During a CW contest I'll sometimes use an extreme isolation headset or a very comfortable old pair of Sony V6 headphones. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Paul Milward Sent: Tuesday, February 23, 2010 8:30 PM To: elecraft@mailman.qth.net Subject: [Elecraft] headset question Hi guys, I recently ordered a K3 and eagerly await it's delivery. You will likely hear lots more from me as I attempt to get up to speed with it. I have been reviewing the archives of this group and see that the Yamaha CM500 is highly regarded. I plan to purchase one very soon. I have the K3 manual open to page 17 (the pdf from Elecraft website). It looks like the stero headset plug goes into the jack marked phones', the mic plug goes into the jack marked mic and a foot switch plug goes into the jack marked PTT IN Now for my question. I have a Heil footswitch and plan to use it for PTT. Is the configuration I described correct? If not, how is headphone/mic and footswitch connected? TIA and 73 de Paul, NU4C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] headset question
Paul Milward wrote: Now for my question. I have a Heil footswitch and plan to use it for PTT. Is the configuration I described correct? If not, how is headphone/mic and footswitch connected? I use a Heil footswitch connected as you described. Using connectors on the back of the K3 sure cuts down on cable clutter. I use a breakout box to go from the mic plug that normally plugs into the front of the K3 into the separate PTT in and mic lines. The Line from the footswitch plugs into a pigtail that is built into the Heil mic cable. Works like a champ. 73, Fred, AE6IC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Swap my extra FL1-4 for KAT1 (built or kit)
Hi All, I have a built and tested FL1-4 to swap for your KAT1 Bob w7wo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
