Re: [Elecraft] K3 RX Antenna QSK
I just stuck a piece of folded-up bubble wrap underneath the Pixel control box which made it much quieter! On 1 Feb 2015 13:20, Mike K2MK wrote: Hi Jim, My Pixel loop is about 15 feet away from my BigIR vertical. I run 1500 watts QSK and have not had any problem at all. In fact since the recent improvements to the K3 QSK it's become a pretty pleasant way of operating. As Vic stated, there is a mechanical relay in the Pixel power box that resides inside the shack which could be distracting. However, the clicking from my amp's relay is much louder. So headphones are pretty much mandatory at my QTH. I should note that this amp is new and I've only been running QSK for about 5 months. If you are noise sensitive and if you are running a silent amp like the KPA500 you'll probably be dissapointed in the sudden appearance of noise from the Pixel power box. I don't know how the Wellbrook does its switching. Perhaps the bigger question is how many cycles does this little relay go through in a typical weekend DX contest and how long will it last. Is it 10,000 cycles? Is it a million cycles? I always switch the Pixel off on the higher frequency bands for the sole purpose of extending the life of the relay. 73, Mike K2MK James Bennett wrote Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Side KX and/or cover
Do most people who order the side panels also get the clear plastic cover? I'm trying to decide what, or if I need them. Bearing in mind that I'd saw a dime in half if I could spend it twice. I buy C-128 laser cartridges for my printer and they come in a fairly tough tubular bubble pack which just happens to be a perfect fit for the KX3, the Comet CAA-500 analyzer, or a 15A MFJ power supply. Each one makes for a package slightly smaller in diameter than a football (the brown pointed one, not the black white one). I don't do back-pack type operation, but they work fine for carry on baggage or the car trunk. 73, Charlie k3ICH - Original Message - From: dyarnes w7...@cox.net To: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, January 31, 2015 11:51 PM Subject: Re: [Elecraft] Accessing KX3 buttons when using Side KX Hi All, I have the Side KX panels on my KX3, and it's really not a problem for me. As has been pointed out, there are fairly large slots on both sides through which you can access any of the buttons on either side row. I suppose someone with especially large fingers might possibly have an issue, but in that case (or anyway!) just use the opposite hand! It is no problem at all accessing buttons on the left side with the right hand and vice versa. By the way, the left panel also has the two buttons identified that need to be pushed to turn the KX3 on or off. So, they obviously thought about this when they designed the panels and determined the slot size. One nice thing about the panels is that their size (depth) does not extend much beyond the main tuning knob. So, if you KX3 fit snugly in whatever you were using for a case before, it probably will still fit with the panels in place. I was slightly concerned about that when I ordered the panels, as I had already selected a carrying case, but there was no problem, before or after--and it is a nice, close fit. Anyway, at worst I would say it is a minor concern. 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 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
[Elecraft] Thanks to Elecraft and this Forum
Same here, and I had the same question: with a K3 and a KX3, why was I keeping the FT847 and the FT950 and all the related stuff I hadn¹t used in years? He who dies with the most toys wins? Answer was to find a junior high school amateur radio club that needed HF equipment. Not at all hard to do. Donating was good for the upcoming generation of hams, cleared out shelf space for me, and provided a nice tax deduction - plenty of prices available on the 'net in case the IRS questions the values. Ted, KN1CBR -- Message: 18 Date: Sat, 31 Jan 2015 16:17:16 -0500 From: Kenneth Talbott ktalb...@gamewood.net To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Thanks to Elecraft this forum Message-ID: 005201d03d9b$4af57590$e0e060b0$@gamewood.net Content-Type: text/plain; charset=us-ascii Ditto! I don't know why I keep those imported rigs. Ken - ke4rg -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Smith Sent: Saturday, January 31, 2015 3:57 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Thanks to Elecraft this forum Just a few words of thanks to both Elecraft and the members of this forum. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] T1 Question
I want to know how the 1.5:1 tuning threshold gets restored after setting it to the 2:1 threshold. The manual tells how to set it to 2:1 but I'm not sure how to get it back to the 1.5 threshold. Myron WVØH Printed on Recycled Data __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX Antenna QSK
I just tried it at speeds from about 24 to 35 wpm. As you say, not much difference in what you hear and a big reduction in relay operations. 0.005 extends the useful speed range downward without changing what you hear much. I'll try it in the next pileup and see if I think it matters. I have two relays in my amp and the one in the loop, and the less work they do the better. On 1 Feb 2015 15:58, d...@lightstream.net wrote: Is there a significant benefit to running full QSK at speeds = 30 WPM as opposed to just running break-in w/ a delay of 0.04? I use the Pixel loop here on 40 and 30 meters w/ my K3, and doing the latter saves a lot of relay operations. Although you won't hear the band between keying elements, you will definitely hear it between letters. No sarcasm intended w/ my question; just trying to understand when and how full QSK provides a benefit over break-in w/ minimal delay. 73, Dale WA8SRA The Pixel can be connected to your amp key circuit. It turns off the power and grounds the antenna on transmit. It works fine with the K3 QSK at 30 wpm (haven't really tried it faster). The relay is a little noisy, but I wear phones and it doesn't bother me. I am using it about 6m from my vertical transmitting antenna with up to 1200 watts, so it is a good idea to use this feature. On 1 Feb 2015 06:52, James Bennett wrote: Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX Antenna QSK
Hi Jim, My Pixel loop is about 15 feet away from my BigIR vertical. I run 1500 watts QSK and have not had any problem at all. In fact since the recent improvements to the K3 QSK it's become a pretty pleasant way of operating. As Vic stated, there is a mechanical relay in the Pixel power box that resides inside the shack which could be distracting. However, the clicking from my amp's relay is much louder. So headphones are pretty much mandatory at my QTH. I should note that this amp is new and I've only been running QSK for about 5 months. If you are noise sensitive and if you are running a silent amp like the KPA500 you'll probably be dissapointed in the sudden appearance of noise from the Pixel power box. I don't know how the Wellbrook does its switching. Perhaps the bigger question is how many cycles does this little relay go through in a typical weekend DX contest and how long will it last. Is it 10,000 cycles? Is it a million cycles? I always switch the Pixel off on the higher frequency bands for the sole purpose of extending the life of the relay. 73, Mike K2MK James Bennett wrote Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-RX-Antenna-QSK-tp7597778p7597784.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
Re: [Elecraft] K3 RX Antenna QSK
Is there a significant benefit to running full QSK at speeds = 30 WPM as opposed to just running break-in w/ a delay of 0.04? I use the Pixel loop here on 40 and 30 meters w/ my K3, and doing the latter saves a lot of relay operations. Although you won't hear the band between keying elements, you will definitely hear it between letters. No sarcasm intended w/ my question; just trying to understand when and how full QSK provides a benefit over break-in w/ minimal delay. 73, Dale WA8SRA The Pixel can be connected to your amp key circuit. It turns off the power and grounds the antenna on transmit. It works fine with the K3 QSK at 30 wpm (haven't really tried it faster). The relay is a little noisy, but I wear phones and it doesn't bother me. I am using it about 6m from my vertical transmitting antenna with up to 1200 watts, so it is a good idea to use this feature. On 1 Feb 2015 06:52, James Bennett wrote: Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX Antenna QSK
The Pixel can be connected to your amp key circuit. It turns off the power and grounds the antenna on transmit. It works fine with the K3 QSK at 30 wpm (haven't really tried it faster). The relay is a little noisy, but I wear phones and it doesn't bother me. I am using it about 6m from my vertical transmitting antenna with up to 1200 watts, so it is a good idea to use this feature. On 1 Feb 2015 06:52, James Bennett wrote: Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Side KX and/or cover
I did and I'm Scottish, worse than that I am a Fifer! Seriously if you are getting the side panels, the clear cover is worth getting as well. It protects the rig quite nicely if you are stuffing it in a rucksack or something. 73 David Anderson GM4JJJ On 1 Feb 2015, at 13:10, Charlie T, K3ICH pin...@erols.com wrote: Do most people who order the side panels also get the clear plastic cover? I'm trying to decide what, or if I need them. Bearing in mind that I'd saw a dime in half if I could spend it twice. I buy C-128 laser cartridges for my printer and they come in a fairly tough tubular bubble pack which just happens to be a perfect fit for the KX3, the Comet CAA-500 analyzer, or a 15A MFJ power supply. Each one makes for a package slightly smaller in diameter than a football (the brown pointed one, not the black white one). I don't do back-pack type operation, but they work fine for carry on baggage or the car trunk. 73, Charlie k3ICH - Original Message - From: dyarnes w7...@cox.net To: Elecraft Reflector elecraft@mailman.qth.net Sent: Saturday, January 31, 2015 11:51 PM Subject: Re: [Elecraft] Accessing KX3 buttons when using Side KX Hi All, I have the Side KX panels on my KX3, and it's really not a problem for me. As has been pointed out, there are fairly large slots on both sides through which you can access any of the buttons on either side row. I suppose someone with especially large fingers might possibly have an issue, but in that case (or anyway!) just use the opposite hand! It is no problem at all accessing buttons on the left side with the right hand and vice versa. By the way, the left panel also has the two buttons identified that need to be pushed to turn the KX3 on or off. So, they obviously thought about this when they designed the panels and determined the slot size. One nice thing about the panels is that their size (depth) does not extend much beyond the main tuning knob. So, if you KX3 fit snugly in whatever you were using for a case before, it probably will still fit with the panels in place. I was slightly concerned about that when I ordered the panels, as I had already selected a carrying case, but there was no problem, before or after--and it is a nice, close fit. Anyway, at worst I would say it is a minor concern. 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 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 gm4...@yahoo.co.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 AGC mod
I would be interested in this too. Do you know of a web page that describes the mod? Myron WVØH Printed on Recycled Data On Feb 1, 2015, at 8:37 AM, NZ0T nz0t...@gmail.com wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-AGC-mod-tp7597792.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 myronschaf...@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] OT Looking for Clifton Labs Z10000B
Hi, Does anyone know if Jack of Clifton Labs is still in business, I'm hoping to buy a Z1B I've emailed Jack but no response as yet. If anyone has a kit or prebuilt Z1B I'd be interested. Thanks, 73, Deni - F5VJC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K1 AGC mod
Here is the other site: http://mailman.qth.net/pipermail/elecraft/2005-May/044374.html On Sun, Feb 1, 2015 at 9:53 AM, Myron WVØH myronschaf...@gmail.com wrote: I would be interested in this too. Do you know of a web page that describes the mod? Myron WVØH Printed on Recycled Data On Feb 1, 2015, at 8:37 AM, NZ0T nz0t...@gmail.com wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-AGC-mod-tp7597792.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 myronschaf...@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] K1 AGC mod
I believe there is a message in the list archives from Wayne on this subject. But apparently this was before the list archives started. About midway down on this page is a relevant message from Wayne. http://www.qsl.net/ve3mcf/elecraft_reflect/K1_AGC_Notes.txt 73, Phil W7OX On 2/1/15 7:37 AM, NZ0T wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? 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] Side KX and/or cover
Hey all I just found this nice video of Side KX, I'm thinking to buy one too, looks nice. https://www.youtube.com/watch?v=Ws3mG_UbfAc -- 73 Alex PY2SEX | DL1NX | PY1KS JW/PY2SEX (24-25.12.2013) PJ4S (26.11-02.12.2014) PJ2/DL1NX (02-09.12.2014) www.py2sex.com http://www.py2sex.com David Anderson wrote: Side KX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K1 AGC mod
Here are a couple of places I have found something: http://www.jl3amk.org/en/#k1_mods The other one that I got the cap values from that are in my OP were from an Elecraft reflector post by a ZL that I can't find now. I'm going have to check my junk drawer and see if I have nay caps that will work. 73 Bill NZ0T On Sun, Feb 1, 2015 at 9:53 AM, Myron WVØH myronschaf...@gmail.com wrote: I would be interested in this too. Do you know of a web page that describes the mod? Myron WVØH Printed on Recycled Data On Feb 1, 2015, at 8:37 AM, NZ0T nz0t...@gmail.com wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-AGC-mod-tp7597792.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 myronschaf...@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] K1 AGC mod
I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-AGC-mod-tp7597792.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
Re: [Elecraft] Thanks to Elecraft and this Forum
Possibly for the same reason that I kept my IC-9100 loaded because Elecraft had nothing to match all its features including D-Star and 1.2 gig. A true all band all mode modern radio, but did sell my FT-847 and FT-5000's. 73 Good DX, Fred N0AZZ -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, Edward Sent: Sunday, February 01, 2015 8:50 AM To: elecraft@mailman.qth.net. Subject: [Elecraft] Thanks to Elecraft and this Forum Same here, and I had the same question: with a K3 and a KX3, why was I keeping the FT847 and the FT950 and all the related stuff I hadn¹t used in years? He who dies with the most toys wins? Answer was to find a junior high school amateur radio club that needed HF equipment. Not at all hard to do. Donating was good for the upcoming generation of hams, cleared out shelf space for me, and provided a nice tax deduction - plenty of prices available on the 'net in case the IRS questions the values. Ted, KN1CBR -- Message: 18 Date: Sat, 31 Jan 2015 16:17:16 -0500 From: Kenneth Talbott ktalb...@gamewood.net To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Thanks to Elecraft this forum Message-ID: 005201d03d9b$4af57590$e0e060b0$@gamewood.net Content-Type: text/plain; charset=us-ascii Ditto! I don't know why I keep those imported rigs. Ken - ke4rg -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Smith Sent: Saturday, January 31, 2015 3:57 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Thanks to Elecraft this forum Just a few words of thanks to both Elecraft and the members of this forum. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 m...@totalhighspeed.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 - sudden death
K2 - sudden death My K2 # 7359 running firmware 2.04 , with internal battery and KAT2 has been behaving wonderfully for more than a year now. This morning I switched it on, and heard familiar chatter from other hams - And after the normal tuning procedure (on approximately 2-3 watt output) I sat down ready for a general SSB rag-chew. Suddenly its front panel display said : Low battery, the general hiss of the loudspeaker faded down, the display went dead and the entire K2 went dead. Immediate restart wasn’t possible, but after a 10 minutes I could repeat the procedure. I then removed the battery and the adjoining cables and placed the K2 battery switch in the battery OFF position, relying now on a small external PS The battery seems never the less to be ok and up to standard. At a new attempt the K2 shuts itself of after app. 30 seconds saying : LOW BATTERY ( with no battery connected ) Changed the P7 jumper to ext, and tried once more. Still: LOW BATTERY Took another well known 12,5 v gel battery, and checked the amperage when the on button is pressed. The K2 is consuming well above 1,5 amps. A loud relay clatter was heard inside the K2. Shut it off immediately What is suddenly happening ? OZ5RB, Hans __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Morning, 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] K3 RX Antenna QSK
In my opinion, you do not gain anything by running full QSK with your K3 below about 40 wpm. But if you do run full QSK, you do lose the use of RIT/XIT and SPLIT. For me using RIT during contest is quite important, therefore I do not use full QSK in any contest. But during the now seldom times I have QRQ (above 60 wpm) QSO's, I always use full QSK. Relay noise from amplifiers T/R relays can not be avoided so therefore you either have to train yourself to ignore the relay noise or wear good headphones, or both. I am presently trying to learn to use VFO A for receiving and VFO B for transmitting as I normally operate in the RUN mode during contest, but of course with the K3 you lose full QSK when running SPLIT. However this also makes using spotting cluster almost impossible. YMMV!! 73, Tom - W4BQF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic Rosenthal 4X6GP/K2VCO Sent: Sunday, February 1, 2015 9:41 AM To: d...@lightstream.net Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 RX Antenna QSK I just tried it at speeds from about 24 to 35 wpm. As you say, not much difference in what you hear and a big reduction in relay operations. 0.005 extends the useful speed range downward without changing what you hear much. I'll try it in the next pileup and see if I think it matters. I have two relays in my amp and the one in the loop, and the less work they do the better. On 1 Feb 2015 15:58, d...@lightstream.net wrote: Is there a significant benefit to running full QSK at speeds = 30 WPM as opposed to just running break-in w/ a delay of 0.04? I use the Pixel loop here on 40 and 30 meters w/ my K3, and doing the latter saves a lot of relay operations. Although you won't hear the band between keying elements, you will definitely hear it between letters. No sarcasm intended w/ my question; just trying to understand when and how full QSK provides a benefit over break-in w/ minimal delay. 73, Dale WA8SRA The Pixel can be connected to your amp key circuit. It turns off the power and grounds the antenna on transmit. It works fine with the K3 QSK at 30 wpm (haven't really tried it faster). The relay is a little noisy, but I wear phones and it doesn't bother me. I am using it about 6m from my vertical transmitting antenna with up to 1200 watts, so it is a good idea to use this feature. On 1 Feb 2015 06:52, James Bennett wrote: Hi all, Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past year or so than in the previous 49 years. Only need three more states for WAS. Got a lot of noise here at this QTH, and have limited antenna space. Using an Inverted L up about 40 feet with a K2AV FCP under it. I'm looking at perhaps getting a magnetic loop receiving antenna, and have looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B. But my question is on the T/R switching of the K3. As I operate 99% CW, I depend on QSK operation. If I connect either of those receive only antenna to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough to protect the K3? Thanks, Jim Jim Bennett / W6JHB Folsom, CA -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 alderm...@windstream.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] Thanks to Elecraft this forum
I do. It's more fun to have more radios. Even though my K3 is my favorite, I still like playing with my Icom 706, or the weird handheld 40M radio, or that 10M FM handheld with all the birdies. Oh, and my K2 that's in backup. One of these days I'm going to end up with a KX3. Now that you mention it, maybe I have a problem. On Sat, 31 Jan 2015, Kenneth Talbott wrote: Ditto! I don't know why I keep those imported rigs. Ken - ke4rg -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Smith Sent: Saturday, January 31, 2015 3:57 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Thanks to Elecraft this forum Just a few words of thanks to both Elecraft and the members of this forum. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 ht...@twofifty.com -- Hisashi T Fujinaka - ht...@twofifty.com BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K1 AGC mod
Hi Don, Thanks for your response. I'm sure it's not the thump but rather a spike in the audio derived AGC before it reduces the the level. I'll try decreasing C31 first On Sun, Feb 1, 2015 at 3:51 PM, Don Wilhelm w3...@embarqmail.com wrote: Bill, Decreasing C31 may decrease the attack time, and decreasing C67 will reduce the hang time. If you are having trouble with the initial 'spike', then I would suggest reducing C31 first. You can experiment with the values. Also take a look at Wayne's comments at http://www.qsl.net/ve3mcf/ elecraft_reflect/K1_AGC_Notes.txt and be sure what you are hearing is not the audio 'thump'. 73, Don W3FPR On 2/1/2015 10:37 AM, NZ0T wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K2 - sudden death
Hans, With the P7 jumper in the EXT position, you are guaranteed to get LO BATT warnings, so set it back to the INT position. Your symptoms sound like you may have a connection in the internal battery wiring that is faulty. OTOH, there could be a fault in the Control Board circuit that feeds the Vsense input to the MCU - U3 pins 5, 6, and 7 should all be at 20% of the voltage applied to pin 2 of the P7 header. The same voltage should be found at U6 pin 5 If all that checks out, you could have a faulty input pin at U6 pin 5 - in which case, replacement of the MCU is the only cure. Keep in mind that a low supply voltage (or a significant voltage drop in the power circuits) will increase the current required. Check with your DMM along the power supply rail inside the K2 to see if you can detect any significant voltage drops. 73, Don W3FPR On 2/1/2015 10:53 AM, Hans Bonnesen wrote: K2 - sudden death My K2 # 7359 running firmware 2.04 , with internal battery and KAT2 has been behaving wonderfully for more than a year now. This morning I switched it on, and heard familiar chatter from other hams - And after the normal tuning procedure (on approximately 2-3 watt output) I sat down ready for a general SSB rag-chew. Suddenly its front panel display said : Low battery, the general hiss of the loudspeaker faded down, the display went dead and the entire K2 went dead. Immediate restart wasn’t possible, but after a 10 minutes I could repeat the procedure. I then removed the battery and the adjoining cables and placed the K2 battery switch in the battery OFF position, relying now on a small external PS The battery seems never the less to be ok and up to standard. At a new attempt the K2 shuts itself of after app. 30 seconds saying : LOW BATTERY ( with no battery connected ) Changed the P7 jumper to ext, and tried once more. Still: LOW BATTERY Took another well known 12,5 v gel battery, and checked the amperage when the on button is pressed. The K2 is consuming well above 1,5 amps. A loud relay clatter was heard inside the K2. Shut it off immediately What is suddenly happening ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Seperate Receive Antenna
Jim How did you determine that the LZ1AQ amplifier is not a differential amp? the diagrams lead me to believe that it has differential inputs. Page 29 shows the specification item 10 which states that the inputs are balanced. What am I missing, where should I be looking? 73 David G3UNA On Jan 31, 2015, at 6:02 PM, jim jbol...@outlook.com wrote: The LZ1AQ amplifier is NOT a differential input amp, rather it is referenced to ground. This can have significant issues as it relates to common mode noise. As a result of my research, I ended up with a Pixel loop. The amp has great characteristics, differential input, uses an A.C. wallwart for low noise, and the install instructions isolate the amp from any ground. The loop interface also has a control line input from your rig, that controls an internal relay, so the amp is protected when you transmit. The loop was designed by hams. The mechanical design of the loop is excellent, using welds at the aluminum joints. I have no interest in the Pixel company, just a very satisfied customer. So satisfied, I bought two of them and phase them with a DX Engineering NCC-1 phaser. Jim W6AIM -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wouter Jan Ubbels Sent: Saturday, January 31, 2015 12:28 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft Digest, Vol 129, Issue 41 Hi Paul, I can recommend LZ1AQ´s active loop antenna. See http://active-antenna.eu/ It offers a nice variety of antenna configuration options, and it plays very well here as a separate RX antenna at my urban noisy QTH. The unit is of high quality, and very well documented. I am using it with my KX3 and a homebrew switchbox which uses reed relays for QSK switching, controlled by the KX3 PTT output taken from the ACC2 jack. 73, Wouter Jan PE4WJ Message: 2 Date: Fri, 30 Jan 2015 19:15:32 + From: Paul Barlow paul.bar...@upcmail.ie To: elecraft@mailman.qth.net Subject: [Elecraft] Separate Receiving Antenna Message-ID: dub405-eas19886eb1dccd9a8d869e61994...@phx.gbl Content-Type: text/plain; charset=us-ascii Dear Elecrafters, I have a very small and odd shaped garden in which to play Ham Radio. I have a K3 (and a K2 and... ), I run QRP CW and I was wondering if anyone had experience of using active loop antennas as receiving antennas to lower the noise floor. I was looking at Wellbrook's Website this afternoon, and I see that their loops get good reviews on EHam. I was wondering what experience you guys might have with these and similar antennas. 73, Paul EI5KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 jbol...@outlook.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 va...@portcredit.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 d.cut...@ntlworld.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 Looking for Clifton Labs Z10000B
Deni, As far as I know, Jack is still in business. Give a shot at another email. jack.sm...@cliftonlaboratories.com 73, Don W3FPR On 2/1/2015 12:15 PM, F5vjc wrote: Hi, Does anyone know if Jack of Clifton Labs is still in business, I'm hoping to buy a Z1B I've emailed Jack but no response as yet. If anyone has a kit or prebuilt Z1B I'd be interested. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] OT: K3 and Johnson Matchbox
I use open wire feed line with a Johnson Matchbox. I'd like to verify that the taps on the coils are original. (I saw solder on one.) When these are purchased used, one never knows if it is in original state. I've been trying to find a source where I may find detailed pictures of the coil to use for comparison. So far, I haven't found what I need. Any help? (This is a 275 watt model) Dick, n0ce Ohm Sweet Ohm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: K3 and Johnson Matchbox
Talk to Hank, W6SX. He uses several Matchboxes, one for each band with an automatic switching arrangement. He's good on QRZ. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/1/2015 2:18 PM, Richard Fjeld wrote: I use open wire feed line with a Johnson Matchbox. I'd like to verify that the taps on the coils are original. (I saw solder on one.) When these are purchased used, one never knows if it is in original state. I've been trying to find a source where I may find detailed pictures of the coil to use for comparison. So far, I haven't found what I need. Any help? (This is a 275 watt model) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
The K3 which was for sale has been sold. 73, Tony K2SG K1N NA Pilot __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K1 AGC mod
Bill, Decreasing C31 may decrease the attack time, and decreasing C67 will reduce the hang time. If you are having trouble with the initial 'spike', then I would suggest reducing C31 first. You can experiment with the values. Also take a look at Wayne's comments at http://www.qsl.net/ve3mcf/elecraft_reflect/K1_AGC_Notes.txt and be sure what you are hearing is not the audio 'thump'. 73, Don W3FPR On 2/1/2015 10:37 AM, NZ0T wrote: I just built K1 SN 3353 and it's a neat little rig. I usually wear headphone so now that I've experienced the AGC lag I would like to do something about it. I know it's audio derived so it will never sound like a K2 or K3 but if I could reduce the loud spike at the start of a received transmission it would help. From perusing the net it looks to me like the most common mod involves replacing C31 on the RF board with a 1uf and C67 on the same board with a .22uf. Is this the best mod or are there others that I should look at? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: K3 and Johnson Matchbox
Sorry. My five Matchboxes are KW units. 73, Hank, W6SX On Sunday, February 1, 2015, Fred Jensen k6...@foothill.net wrote: Talk to Hank, W6SX. He uses several Matchboxes, one for each band with an automatic switching arrangement. He's good on QRZ. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/1/2015 2:18 PM, Richard Fjeld wrote: I use open wire feed line with a Johnson Matchbox. I'd like to verify that the taps on the coils are original. (I saw solder on one.) When these are purchased used, one never knows if it is in original state. I've been trying to find a source where I may find detailed pictures of the coil to use for comparison. So far, I haven't found what I need. Any help? (This is a 275 watt model) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 w...@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
[Elecraft] RF Preamp ON/OFF
Running latest 5.09 When pushing PRE to have it OFF the pre/dial will flash and preamp is not off. I have to push it twice to have it off. Is it new? normal? 73, Claude VE2FK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Side KX and/or cover
I bought both, and it turns out that the covers are more useful than the side panels alone are. Previously when packing the KX3 and PX3 I had to give them extra space because I didn¹t want anything touching the panel or knobs. With the covers in place I can get more in the back pack rather than less, as they protect the face of the instruments allowing for more stuff to be packed against them. Ted, KN1CBR -- Message: 11 Date: Sun, 1 Feb 2015 08:10:42 -0500 From: Charlie T, K3ICH pin...@erols.com To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Side KX and/or cover Message-ID: B5122D07D5304A94B34C8914C8CA907D@pinnacle05df05 Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response Do most people who order the side panels also get the clear plastic cover? I'm trying to decide what, or if I need them. Bearing in mind that I'd saw a dime in half if I could spend it twice. I buy C-128 laser cartridges for my printer and they come in a fairly tough tubular bubble pack which just happens to be a perfect fit for the KX3, the Comet CAA-500 analyzer, or a 15A MFJ power supply. Each one makes for a package slightly smaller in diameter than a football (the brown pointed one, not the black white one). I don't do back-pack type operation, but they work fine for carry on baggage or the car trunk. 73, Charlie k3ICH - Original Message - From: dyarnes w7...@cox.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] Side KX and/or cover
Do you have cover and side panels for the PX3 too? Phil W7OX - Sent from my iPad On Feb 1, 2015, at 17:43, Dauer, Edward eda...@law.du.edu wrote: I bought both, and it turns out that the covers are more useful than the side panels alone are. Previously when packing the KX3 and PX3 I had to give them extra space because I didn¹t want anything touching the panel or knobs. With the covers in place I can get more in the back pack rather than less, as they protect the face of the instruments allowing for more stuff to be packed against them. Ted, KN1CBR -- Message: 11 Date: Sun, 1 Feb 2015 08:10:42 -0500 From: Charlie T, K3ICH pin...@erols.com To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Side KX and/or cover Message-ID: B5122D07D5304A94B34C8914C8CA907D@pinnacle05df05 Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response Do most people who order the side panels also get the clear plastic cover? I'm trying to decide what, or if I need them. Bearing in mind that I'd saw a dime in half if I could spend it twice. I buy C-128 laser cartridges for my printer and they come in a fairly tough tubular bubble pack which just happens to be a perfect fit for the KX3, the Comet CAA-500 analyzer, or a 15A MFJ power supply. Each one makes for a package slightly smaller in diameter than a football (the brown pointed one, not the black white one). I don't do back-pack type operation, but they work fine for carry on baggage or the car trunk. 73, Charlie k3ICH - Original Message - From: dyarnes w7...@cox.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 w...@socal.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 arch...@mail-archive.com
Re: [Elecraft] OT: K3 and Johnson Matchbox
Lots of room on your desk, Hank? Vic 4X6GP/K2VCO On Feb 2, 2015, at 12:40 AM, Hank Garretson w...@arrl.net wrote: Sorry. My five Matchboxes are KW units. 73, Hank, W6SX On Sunday, February 1, 2015, Fred Jensen k6...@foothill.net wrote: Talk to Hank, W6SX. He uses several Matchboxes, one for each band with an automatic switching arrangement. He's good on QRZ. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/1/2015 2:18 PM, Richard Fjeld wrote: I use open wire feed line with a Johnson Matchbox. I'd like to verify that the taps on the coils are original. (I saw solder on one.) When these are purchased used, one never knows if it is in original state. I've been trying to find a source where I may find detailed pictures of the coil to use for comparison. So far, I haven't found what I need. Any help? (This is a 275 watt model) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 w...@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 k2vco@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] Seperate Receive Antenna
There was a schematic published by LZ1AQ that showed the implementation of a loop required that one of the inputs of the amp was referenced to ground. Jim -Original Message- From: David Cutter [mailto:d.cut...@ntlworld.com] Sent: Sunday, February 1, 2015 11:59 AM To: Mike va3mw; jim Cc: elecraft@mailman.qth.net; Wouter Jan Ubbels Subject: Re: [Elecraft] Seperate Receive Antenna Jim How did you determine that the LZ1AQ amplifier is not a differential amp? the diagrams lead me to believe that it has differential inputs. Page 29 shows the specification item 10 which states that the inputs are balanced. What am I missing, where should I be looking? 73 David G3UNA On Jan 31, 2015, at 6:02 PM, jim jbol...@outlook.com wrote: The LZ1AQ amplifier is NOT a differential input amp, rather it is referenced to ground. This can have significant issues as it relates to common mode noise. As a result of my research, I ended up with a Pixel loop. The amp has great characteristics, differential input, uses an A.C. wallwart for low noise, and the install instructions isolate the amp from any ground. The loop interface also has a control line input from your rig, that controls an internal relay, so the amp is protected when you transmit. The loop was designed by hams. The mechanical design of the loop is excellent, using welds at the aluminum joints. I have no interest in the Pixel company, just a very satisfied customer. So satisfied, I bought two of them and phase them with a DX Engineering NCC-1 phaser. Jim W6AIM -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wouter Jan Ubbels Sent: Saturday, January 31, 2015 12:28 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft Digest, Vol 129, Issue 41 Hi Paul, I can recommend LZ1AQ´s active loop antenna. See http://active-antenna.eu/ It offers a nice variety of antenna configuration options, and it plays very well here as a separate RX antenna at my urban noisy QTH. The unit is of high quality, and very well documented. I am using it with my KX3 and a homebrew switchbox which uses reed relays for QSK switching, controlled by the KX3 PTT output taken from the ACC2 jack. 73, Wouter Jan PE4WJ Message: 2 Date: Fri, 30 Jan 2015 19:15:32 + From: Paul Barlow paul.bar...@upcmail.ie To: elecraft@mailman.qth.net Subject: [Elecraft] Separate Receiving Antenna Message-ID: dub405-eas19886eb1dccd9a8d869e61994...@phx.gbl Content-Type: text/plain; charset=us-ascii Dear Elecrafters, I have a very small and odd shaped garden in which to play Ham Radio. I have a K3 (and a K2 and... ), I run QRP CW and I was wondering if anyone had experience of using active loop antennas as receiving antennas to lower the noise floor. I was looking at Wellbrook's Website this afternoon, and I see that their loops get good reviews on EHam. I was wondering what experience you guys might have with these and similar antennas. 73, Paul EI5KI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 jbol...@outlook.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 va...@portcredit.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 d.cut...@ntlworld.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
