[Elecraft] The Old Days
On 1/28/2013 11:50 PM, Ralph Parker wrote: pps: When I started, SSB was quite rare on the ham bands. Same for me, but AM is nothing I remember fondly, and I was quite happy to see it replaced by a mode that works far better and occupies half the bandwidth. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] The Old Days
I'm not picking a fight. I was quite happy to see it replaced Jim Sir. Was AM replaced by SSB? Or, was SSB an alternate mode to AM? I'm sure this debate can and has been going on since the devil was a boy. Lets remind ourselves that this a Hobby and we are classified as AMATEUR. PS: Let us respect Eric's request, and irrespective of our opinion, agree to disagree. (((73))) Milverton. From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Sent: Tuesday, January 29, 2013 2:11 AM Subject: [Elecraft] The Old Days On 1/28/2013 11:50 PM, Ralph Parker wrote: pps: When I started, SSB was quite rare on the ham bands. Same for me, but AM is nothing I remember fondly, and I was quite happy to see it replaced by a mode that works far better and occupies half the bandwidth. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
That seems like an odd and unnecessary disclaimer, but in reply I'll offer the opinion that the ratio of vinyl to CD's is roughly the same order of magnitude as the ratio of AM to SSB in ham radio*... and I'm pretty sure that most people would say that CDs replaced vinyl long ago. That doesn't mean that AM is an invalid mode, at least not as long as the FCC still allows it, but I think it's pretty certain that the bands would be a horrible mess if everyone was still using AM. 73, Dave AB7E * Before anyone takes issue with my comparison, keep in mind that the ratio of vinyl to CDs is skewed to the high side because CDs themselves are declining in favor of direct downloads. On 1/29/2013 1:26 AM, tnny...@yahoo.com wrote: Jim Sir. Was AM replaced by SSB? Or, was SSB an alternate mode to AM? I'm sure this debate can and has been going on since the devil was a boy. Lets remind ourselves that this a Hobby and we are classified as AMATEUR. PS: Let us respect Eric's request, and irrespective of our opinion, agree to disagree. (((73))) Milverton. __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
To the Group I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. In summery I have decided I need at least 3 antennas for portable use depending on conditions, just as I would at home. It looks like I made a good decision when ordering to order the duel binding post BNC connector in fact a spare is in order I think. I have stocked up on several BNC's since the purchase of my KX3/K3's and preamps and such quality ones can be quite costly but I hate cheapies. Thx 73 to all, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KXBC3 trickle charge option?
Good morning, I was wondering if Elecraft was thinking/ thought of implementing ( if possible) a trickle charge addition to the KXBC3 module for the KX3 rig? I know this has been brought up in the past was not sure if it was address or soon to be? Mike VE3WDM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Don's comments on ESSB and AM
Tim, M0AFJ AM operation here is made up by a niche of interesting guys who are enjoying the hobby just like the antique auto folks. The group here is made up of mostly long term retired hams who are having FUN with AM. Being able to join in with a K3 on AM is just another example of the flexibility of this great radio. And yes, the K3 offers outstanding AM quality over the air. Thanks 73, John, W1QS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Fred and all, Realizing that the terms best and portable mean different things to different people. Here is a portable vertical that I've been playing with since June: http://www.n6bt.com/n6bt-Bravo7K-1.htm This is a design from Tom Schiller, N6BT of the Force 12 era. He has an entire new line with his new company. This antenna is an asymmetrically fed vertical dipole. It supports 7 bands, 10m-40m via tuning of the lengths of tubing and some loading coils on certain bands. It is full length 10m - 20m and there is some loading for 30m 40m. He touts 90-99% efficiency with upper 90's for the non loaded bands and 90-95% on the loaded bands. The asymmetric design allows the feedpoint to be at the bottom for ease of feeding and keeps the center of gravity for the antenna near the bottom. I ordered mine with the tri-pod base and made up 3 u-shaped aluminum stakes to hold the tri-pod to the ground in the yard. So far it has survived hurricane Sandy effects here in SE Michigan and winds over 50mph. I did have a 60mph gust last week that finally pushed it over - no damage. I regrettably have little time to operate these days, but when I'm doing other things in the basement I run WSPR and have done direct comparisons with my window line fed 140' doublet. It performs comparably in my opinion. It exhibits the same properties as a vertical i.e. noisier, lower take off angle etc. Using both antennas for diversity reception is really cool. It almost eliminates QSB conditions sometimes in that if the QSB is changing polarizations, you hear the signal move from one ear to the other. There was a review of this antenna in QST last year and some suggestions were made by the reviewer, Ward Silver, N0AX, about mounting things more efficiently for changing bands etc. All of the suggestions made were incorporated in the version I received. Although the price tag is around $290, I believe it is cheaper than some of the comparable Buddi-system configurations. Obviously, I can (and have) made simple wire antennas for far cheaper and perform well. It just takes me a lot longer sometimes to get the wire where I want it. The one thing I like about the Bravo 7K is that it is made from easily purchased parts so that you can repair it in the field if necessary. I found all the lengths of tubing on the DX Engineering site. All of the hose clamps to secure the tubing are SS hose clamps found at most hardware outlets. It is portable and light, weighing in around 12 lbs or so, but not something you'll want for backpacking or other type of operating where keeping the weight down is a priority. I bought a drum hardware bag for mine that holds the antenna and all supporting cables, stakes, rope, tools etc. I made a W2DU balun for mine that is permanently mounted underneath the loading coil box. I found that tuning it was pretty much like it is laid out in their manual. I used a pipe cutter to notch my tubing elements so that I can easily change bands in seconds without remeasuring. It can be detuned fairly easily on 30 40m by large objects or different soil near the placement. I have taken it on a couple of small trips in the last few months and I can set it up in less than 15 minutes and be on the air. I'm currently stressing it out with a Michigan winter and hoping to be impressed with its toughness if it still works this spring ;-) I have no outside interest in this company, just a satisfied owner at this point. YMMV. 73, Dave W8FGU On 01/29/2013 04:36 AM, Fred Smith wrote: To the Group __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Hi Dave Thanks for the info, Nate had emailed me yesterday about it and I was sadden to hear of his health issues that had caused him to pull back from the project for a while. I linked to it yesterday nice to hear from someone that has one in use for a while. 73, Fred/N0AZZ -Original Message- From: Dave Van Wallaghen [mailto:w8...@comcast.net] Sent: Tuesday, January 29, 2013 7:20 AM To: Fred Smith Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna Fred and all, Realizing that the terms best and portable mean different things to different people. Here is a portable vertical that I've been playing with since June: http://www.n6bt.com/n6bt-Bravo7K-1.htm This is a design from Tom Schiller, N6BT of the Force 12 era. He has an entire new line with his new company. This antenna is an asymmetrically fed vertical dipole. It supports 7 bands, 10m-40m via tuning of the lengths of tubing and some loading coils on certain bands. It is full length 10m - 20m and there is some loading for 30m 40m. He touts 90-99% efficiency with upper 90's for the non loaded bands and 90-95% on the loaded bands. The asymmetric design allows the feedpoint to be at the bottom for ease of feeding and keeps the center of gravity for the antenna near the bottom. I ordered mine with the tri-pod base and made up 3 u-shaped aluminum stakes to hold the tri-pod to the ground in the yard. So far it has survived hurricane Sandy effects here in SE Michigan and winds over 50mph. I did have a 60mph gust last week that finally pushed it over - no damage. I regrettably have little time to operate these days, but when I'm doing other things in the basement I run WSPR and have done direct comparisons with my window line fed 140' doublet. It performs comparably in my opinion. It exhibits the same properties as a vertical i.e. noisier, lower take off angle etc. Using both antennas for diversity reception is really cool. It almost eliminates QSB conditions sometimes in that if the QSB is changing polarizations, you hear the signal move from one ear to the other. There was a review of this antenna in QST last year and some suggestions were made by the reviewer, Ward Silver, N0AX, about mounting things more efficiently for changing bands etc. All of the suggestions made were incorporated in the version I received. Although the price tag is around $290, I believe it is cheaper than some of the comparable Buddi-system configurations. Obviously, I can (and have) made simple wire antennas for far cheaper and perform well. It just takes me a lot longer sometimes to get the wire where I want it. The one thing I like about the Bravo 7K is that it is made from easily purchased parts so that you can repair it in the field if necessary. I found all the lengths of tubing on the DX Engineering site. All of the hose clamps to secure the tubing are SS hose clamps found at most hardware outlets. It is portable and light, weighing in around 12 lbs or so, but not something you'll want for backpacking or other type of operating where keeping the weight down is a priority. I bought a drum hardware bag for mine that holds the antenna and all supporting cables, stakes, rope, tools etc. I made a W2DU balun for mine that is permanently mounted underneath the loading coil box. I found that tuning it was pretty much like it is laid out in their manual. I used a pipe cutter to notch my tubing elements so that I can easily change bands in seconds without remeasuring. It can be detuned fairly easily on 30 40m by large objects or different soil near the placement. I have taken it on a couple of small trips in the last few months and I can set it up in less than 15 minutes and be on the air. I'm currently stressing it out with a Michigan winter and hoping to be impressed with its toughness if it still works this spring ;-) I have no outside interest in this company, just a satisfied owner at this point. YMMV. 73, Dave W8FGU On 01/29/2013 04:36 AM, Fred Smith wrote: To the Group __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
All, OK, a great discussion, so I thought I would share the antenna I like to use for portable. It is basicly a 44 foot doublet fed with 300 ohm ladderline (32 feet long with an additional 10 foot section that I can add). I couple that with my Jacktite 32 foot telescoping pole. Things fasten together with Anderson Power Pole connectors. In addition, I carry 2 additional 22 foot lengths of wire. I strap the pole to anything vertical, I have the heavy duty pole, so if I can find a support that is 3 feet high or more, there is no need for additional guying. That antenna can deploy in a variety of ways. If an additional support is available, I use it as a horizontal dipole. In situations where there are low bushes around, it goes up as an inverted vee - just tie the center insulator to the top of the pole and push it up - tie off the ends to whatever supports are available. If I want to operate 80 meters or want better efficiency on 40, the two 22 foot wires are added making it an 88 foot dipole. If space is limited, or I want a vertical, one end of the antenna is fastened to the top of the pole, and the other side of the antenna acts as a bent radial (the feedpoint is 10 feet above ground). The other two 22 foot wires can serve as additional radials. Support the feedline by whatever means available. I use a switchable 1:1/4:1 balun at the end of the feedline and a short length of coax to the rig. So, you don't have to be slaved to any one type of antenna. Sometimes 'best' is dictated by the physical surroundings. If you want to work locals, use the inverted vee or dipole, but if you are trying for something more distant, use the vertical configuration. Other than the Jacktite pole, the antenna is inexpensive, but there is no commercial offering, you have to build it yourself. The 'magic' of the 44 foot length is that the antenna radiates broadside to the wire with no lobes until you get above 10 meters, with the 88 foot length, lobes will be present above 20 meters. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Receiver Fade - Update
Good morning everyone After hours of testing, it looks like my receiver problem was a failed PL-259 leaving the Alpha 87a to the junction box outside of the shack. After repairing that last evening, I was on 30 meters for over 2 hours and 40 meters for 1/2 hour and never lost the receive. More testing this evening but I'm optimistic the problem is fixed. Thanks for all of the ideas and comments. On a side note, the P3 with a large monitor attached made it easy to listen and WATCH the receiver in action. Larry, KN8N __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Best Portable Antenna
I have also been pleased with the convenience and performance of a 44' doublet. I currently have one hanging in a vertical dipole configuration from a tree that's about 55' high. Works great on 40m-6m. 73, Randy, KS4L On Jan 29, 2013, at 8:06 AM, Don Wilhelm w3...@embarqmail.com wrote: All, OK, a great discussion, so I thought I would share the antenna I like to use for portable. It is basicly a 44 foot doublet fed with 300 ohm ladderline (32 feet long with an additional 10 foot section that I can add). I couple that with my Jacktite 32 foot telescoping pole. Things fasten together with Anderson Power Pole connectors. In addition, I carry 2 additional 22 foot lengths of wire. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Hey Fred, Sorry to hear of Natan's health issues. I had a very hard time getting a hold of Tom apparently due to some email server issues at the time. I tried to order this before Dayton last year and never did get a response. I wound up on Natan's email and he immediately got back to me. He was very professional and cordial. He told me that they were getting ready to move operations and that it would be 6 - 8 weeks for delivery. I got it in 4 - it was everything they stated it would be and packaged very well. I read a number of folks that had service problems with Tom but with Natan, my experience was a good one. I should drop them a note to let them know how well it is working for me. 73, Dave W8FGU On 01/29/2013 09:04 AM, Fred Smith wrote: Hi Dave Thanks for the info, Nate had emailed me yesterday about it and I was sadden to hear of his health issues that had caused him to pull back from the project for a while. I linked to it yesterday nice to hear from someone that has one in use for a while. 73, Fred/N0AZZ -Original Message- From: Dave Van Wallaghen [mailto:w8...@comcast.net] Sent: Tuesday, January 29, 2013 7:20 AM To: Fred Smith Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna Fred and all, Realizing that the terms best and portable mean different things to different people. Here is a portable vertical that I've been playing with since June: http://www.n6bt.com/n6bt-Bravo7K-1.htm This is a design from Tom Schiller, N6BT of the Force 12 era. He has an entire new line with his new company. This antenna is an asymmetrically fed vertical dipole. It supports 7 bands, 10m-40m via tuning of the lengths of tubing and some loading coils on certain bands. It is full length 10m - 20m and there is some loading for 30m 40m. He touts 90-99% efficiency with upper 90's for the non loaded bands and 90-95% on the loaded bands. The asymmetric design allows the feedpoint to be at the bottom for ease of feeding and keeps the center of gravity for the antenna near the bottom. I ordered mine with the tri-pod base and made up 3 u-shaped aluminum stakes to hold the tri-pod to the ground in the yard. So far it has survived hurricane Sandy effects here in SE Michigan and winds over 50mph. I did have a 60mph gust last week that finally pushed it over - no damage. I regrettably have little time to operate these days, but when I'm doing other things in the basement I run WSPR and have done direct comparisons with my window line fed 140' doublet. It performs comparably in my opinion. It exhibits the same properties as a vertical i.e. noisier, lower take off angle etc. Using both antennas for diversity reception is really cool. It almost eliminates QSB conditions sometimes in that if the QSB is changing polarizations, you hear the signal move from one ear to the other. There was a review of this antenna in QST last year and some suggestions were made by the reviewer, Ward Silver, N0AX, about mounting things more efficiently for changing bands etc. All of the suggestions made were incorporated in the version I received. Although the price tag is around $290, I believe it is cheaper than some of the comparable Buddi-system configurations. Obviously, I can (and have) made simple wire antennas for far cheaper and perform well. It just takes me a lot longer sometimes to get the wire where I want it. The one thing I like about the Bravo 7K is that it is made from easily purchased parts so that you can repair it in the field if necessary. I found all the lengths of tubing on the DX Engineering site. All of the hose clamps to secure the tubing are SS hose clamps found at most hardware outlets. It is portable and light, weighing in around 12 lbs or so, but not something you'll want for backpacking or other type of operating where keeping the weight down is a priority. I bought a drum hardware bag for mine that holds the antenna and all supporting cables, stakes, rope, tools etc. I made a W2DU balun for mine that is permanently mounted underneath the loading coil box. I found that tuning it was pretty much like it is laid out in their manual. I used a pipe cutter to notch my tubing elements so that I can easily change bands in seconds without remeasuring. It can be detuned fairly easily on 30 40m by large objects or different soil near the placement. I have taken it on a couple of small trips in the last few months and I can set it up in less than 15 minutes and be on the air. I'm currently stressing it out with a Michigan winter and hoping to be impressed with its toughness if it still works this spring ;-) I have no outside interest in this company, just a satisfied owner at this point. YMMV. 73, Dave W8FGU On 01/29/2013 04:36 AM, Fred Smith wrote: To the Group __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:
Re: [Elecraft] Best Portable Antenna
I like using plug-together sections. Using 2 x 22ft sections on one side and one 22ft section on the other makes a nice OCF dipole that is close to 50ohm on 40, 20 and 10 with a 4:1 balun. Adjust middle and end height to a good match without a tuner. Other 1/3 2/3 arrangements can be made using plug-together sections to cover more bands without switches or tuner. Do the same for the vertical version. Even good quality tuners work better with loads that are closer to 50ohm and the OCF with balun/choke makes it easy. David G3UNA - Original Message - From: Don Wilhelm w3...@embarqmail.com To: elecraft@mailman.qth.net Sent: Tuesday, January 29, 2013 2:06 PM Subject: Re: [Elecraft] Best Portable Antenna All, OK, a great discussion, so I thought I would share the antenna I like to use for portable. It is basicly a 44 foot doublet fed with 300 ohm ladderline (32 feet long with an additional 10 foot section that I can add). I couple that with my Jacktite 32 foot telescoping pole. Things fasten together with Anderson Power Pole connectors. In addition, I carry 2 additional 22 foot lengths of wire. I strap the pole to anything vertical, I have the heavy duty pole, so if I can find a support that is 3 feet high or more, there is no need for additional guying. That antenna can deploy in a variety of ways. If an additional support is available, I use it as a horizontal dipole. In situations where there are low bushes around, it goes up as an inverted vee - just tie the center insulator to the top of the pole and push it up - tie off the ends to whatever supports are available. If I want to operate 80 meters or want better efficiency on 40, the two 22 foot wires are added making it an 88 foot dipole. If space is limited, or I want a vertical, one end of the antenna is fastened to the top of the pole, and the other side of the antenna acts as a bent radial (the feedpoint is 10 feet above ground). The other two 22 foot wires can serve as additional radials. Support the feedline by whatever means available. I use a switchable 1:1/4:1 balun at the end of the feedline and a short length of coax to the rig. So, you don't have to be slaved to any one type of antenna. Sometimes 'best' is dictated by the physical surroundings. If you want to work locals, use the inverted vee or dipole, but if you are trying for something more distant, use the vertical configuration. Other than the Jacktite pole, the antenna is inexpensive, but there is no commercial offering, you have to build it yourself. The 'magic' of the 44 foot length is that the antenna radiates broadside to the wire with no lobes until you get above 10 meters, with the 88 foot length, lobes will be present above 20 meters. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] My in-progress K1 is ALIVE!!!
Nobody at my house cares about radio stuff, so I have to share this with somebody!! I am putting together my K1 and have gotten to the point where I install L1 to perform the VFO Range Test. Of course I just HAD to plug in an antenna to see if this thing can hear, so I push the ON/OFF button and ... ... ... IT'S ALIVE How exciting, I just listened to 40 CW all night, did VFO range tests, and went to bed. I peaked all the trimmers by ear by transmitting 2 watts from my big rig (into a dummy load); there must be a more scientific way to do this. But so far so good. At 5 watts I think what will keep me back is NOT that last dB I lose from bad tweeking of the caps! My only snags: 1. I did not have a DMM and assumed my analog Radio Shack meter would do. The RatShack meter gave me crazy readings, went to Amazon and got an Equus 3320 Autorange DMM for $21 and BINGO, all readings were right on. 2. I could not get VFO frequency up to 3.090 by simple spreading of turns in L1, I had to remove L1 and remove a turn. BUT I had already flush-cut the leads when I put it in. It was a BITCH to get L1 installed again and that one short lead in the hole deep enough for soldering. Since removing L1 is a distinct possibility for future builders, maybe a note to NOT flush-cut the leads until you are SURE L1 is right. Otherwise, HAPPY HAPPY JOY JOY. Paul K3STX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
I don't recall seeing anyone mention the new CrankIR portable vertical antenna from SteppIR. Supposed to be available this spring. Scroll down on their home page to see the announcement. http://www.steppir.com/ Personally, I use a home made 80M OCF dipole at the moment. Regards, David McAnally WD5M On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: To the Group I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. In summery I have decided I need at least 3 antennas for portable use depending on conditions, just as I would at home. It looks like I made a good decision when ordering to order the duel binding post BNC connector in fact a spare is in order I think. I have stocked up on several BNC's since the purchase of my KX3/K3's and preamps and such quality ones can be quite costly but I hate cheapies. Thx 73 to all, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
Congrats, Paul, on getting your K1 working. The K1 is a great little rig and you are sure to have lots of enjoyment with it. I made mine many years ago (SN No. 01117) and can't remember whether or not I had any problem with L1. The only decision I recall was which capacitor to use for the tuning range. I opted for the one to provide the widest band coverage. I did change the encoder to a better one as the one provided with early K1s was a bit noisy mechanically. Also I carried out the mod to provide a back lit display which was not standard at the time. Have fun! David G4DMP In a recent message, Paul Roche roc...@comcast.net writes IT'S ALIVE How exciting, I just listened to 40 CW all night, did VFO range tests, and went to bed. I peaked all the trimmers by ear by transmitting 2 watts from my big rig (into a dummy load); there must be a more scientific way to do this. But so far so good. At 5 watts I think what will keep me back is NOT that last dB I lose from bad tweeking of the caps! -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.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
Re: [Elecraft] Best Portable Antenna
I'm not a big fan of SteppIR a little overpriced and for me their beams were not a good choice because of the Stepper motors a lot of ice and wind here. Service issues would be a problem also no tower for me lol. I did look at that it looks like a fiberglass windsock pole and a fishing reel would work about the same and they are 31'. Fred/N0AZZ From: David McAnally [mailto:david.mcana...@gmail.com] Sent: Tuesday, January 29, 2013 9:29 AM To: Fred Smith Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna I don't recall seeing anyone mention the new CrankIR portable vertical antenna from SteppIR. Supposed to be available this spring. Scroll down on their home page to see the announcement. http://www.steppir.com/ Personally, I use a home made 80M OCF dipole at the moment. Regards, David McAnally WD5M On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: To the Group I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. In summery I have decided I need at least 3 antennas for portable use depending on conditions, just as I would at home. It looks like I made a good decision when ordering to order the duel binding post BNC connector in fact a spare is in order I think. I have stocked up on several BNC's since the purchase of my KX3/K3's and preamps and such quality ones can be quite costly but I hate cheapies. Thx 73 to all, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
I have one more 'fallback' system that might be worth mentioning here. For those situations where I cannot be nearer to my antenna and must deal with a longer transmission line, I use my SGC-211 remote autocoupler. It runs for 5 years on a handful of AA batteries. It will tune just about anything, just like the KX3. The advantage is a long and clean coax run to the radio, whereever that might happen to be located. Here's a practical example: Maybe I want to put up a stealth loop or random wire, or even a Delta loop or a doublet. The only place to do so might be at some distance from the transmitter, for example, trees way out back of a townhouse or condo. I can put the SG-211 out there at the feedpoint, bury my coax cable in a shallow slit trench, and no one is the wiser. Disadvantages: Limited to 60 watts, not naturally weatherproof. Advantages: battery operated, a shot of RF tunes it, and the RF is kept out of the shack. Availability: it's a seasonal product and I've never seen one listed anywhere 'used'. eHAM ratings are not that great because there used to be a problem with it randomly re-tuning and the pre-2007 comments about this drag down the overall rating. There is now a tune-lock switch and I have not had any problems myself. It's not a perfect solution but one worth at least knowing exists. 73, Stan WB2LQF On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Does anyone know more about the new SteppIR CrankIR? For instance, I assume it needs a ground plane and the photo seems to show it elevated like on a back deck or something. I should probably just drive down to SteppIR in Bellevue this afternoon and ask them, it is a 15 minute drive. If I find out anything I will report back if anyone is interested. I have found that companies are more easy to give out information in person then on the phone. 73, phil, K7PEH On Jan 29, 2013, at 7:48 AM, Fred Smith m...@mo-net.com wrote: I'm not a big fan of SteppIR a little overpriced and for me their beams were not a good choice because of the Stepper motors a lot of ice and wind here. Service issues would be a problem also no tower for me lol. I did look at that it looks like a fiberglass windsock pole and a fishing reel would work about the same and they are 31'. Fred/N0AZZ From: David McAnally [mailto:david.mcana...@gmail.com] Sent: Tuesday, January 29, 2013 9:29 AM To: Fred Smith Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna I don't recall seeing anyone mention the new CrankIR portable vertical antenna from SteppIR. Supposed to be available this spring. Scroll down on their home page to see the announcement. http://www.steppir.com/ Personally, I use a home made 80M OCF dipole at the moment. Regards, David McAnally WD5M On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: To the Group I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. In summery I have decided I need at least 3 antennas for portable use depending on conditions, just as I would at home. It looks like I made a good decision when ordering to order the duel binding post BNC connector in fact a spare is in order I think. I have stocked up on several BNC's since the purchase of my KX3/K3's and preamps and such quality ones can be quite costly but I hate cheapies. Thx 73 to all, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
I opted for the one to provide the widest band coverage. That provides about 180 kHz BFO band span. That's what I've used for 12 years in my K1. I did change the encoder to a better one as the one provided with early K1s was a bit noisy mechanically. The K1 uses no encoders. The VFO tuning control is simply a ten-turn 100 kOhm potentiometer. I carried out the mod to provide a back lit display which was not standard at the time. Nor is it standard even now! This is an **extremely** valuable option that is a real pain to back fit into a K1 whose front panel PCB has been completed with the old unlit display. Elecraft does a disservice to K1 purchasers by not making the backlit LCD standard, even at a price escalation for the K1. Yes...it's that important. Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 doesn't boot when KAT500 is unpowered
Hi, my KAT500 works fine without any problems. It is connected to the K3 via the DB15 interface cable. There is no KPA500 in the chain. Today I noticed, the K3 hangs when switched on while there is no power supply to the KAT500! The K3 display is blank, no audio. No reaction from all buttons. Can somebody confirm that? Any ideas? 73 de Tom, DL2RUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Stan That is an SGC product that I didn't even know they had, I'll look it up. Guys I've been keeping Google busy yesterday and today a lot of really good information. I hope a few of the group has enjoyed some of this as much as I have and a lot applies not to just my original QRP antenna either. Time to reload the printer with more paper. Fred/N0AZZ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of stan levandowski Sent: Tuesday, January 29, 2013 10:20 AM Cc: Elecraft List Subject: Re: [Elecraft] Best Portable Antenna I have one more 'fallback' system that might be worth mentioning here. For those situations where I cannot be nearer to my antenna and must deal with a longer transmission line, I use my SGC-211 remote autocoupler. It runs for 5 years on a handful of AA batteries. It will tune just about anything, just like the KX3. The advantage is a long and clean coax run to the radio, whereever that might happen to be located. Here's a practical example: Maybe I want to put up a stealth loop or random wire, or even a Delta loop or a doublet. The only place to do so might be at some distance from the transmitter, for example, trees way out back of a townhouse or condo. I can put the SG-211 out there at the feedpoint, bury my coax cable in a shallow slit trench, and no one is the wiser. Disadvantages: Limited to 60 watts, not naturally weatherproof. Advantages: battery operated, a shot of RF tunes it, and the RF is kept out of the shack. Availability: it's a seasonal product and I've never seen one listed anywhere 'used'. eHAM ratings are not that great because there used to be a problem with it randomly re-tuning and the pre-2007 comments about this drag down the overall rating. There is now a tune-lock switch and I have not had any problems myself. It's not a perfect solution but one worth at least knowing exists. 73, Stan WB2LQF On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2639/5566 - Release Date: 01/29/13 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Mike, That previous post by David McAnally links to a blog that has some good information. I read that and I will probably put off heading into Bellevue today (maybe). The David McAnally link to the block answered my questions for now. 73, phil, K7PEH On Jan 29, 2013, at 8:48 AM, K2MK k...@comcast.net wrote: Hi Phil, I would be interested in hearing more about it. Just curious more than anything. 73, Mike K2MK Does anyone know more about the new SteppIR CrankIR? For instance, I assume it needs a ground plane and the photo seems to show it elevated like on a back deck or something. I should probably just drive down to SteppIR in Bellevue this afternoon and ask them, it is a 15 minute drive. If I find out anything I will report back if anyone is interested. I have found that companies are more easy to give out information in person then on the phone. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
...I peaked all the trimmers by ear by transmitting 2 watts from my big rig (into a dummy load); there must be a more scientific way to do this. Maybe, but the approach you used is as easy and serviceable as any other method. But so far so good. At 5 watts I think what will keep me back is NOT that last dB I lose from bad tweeking of the caps! That tells me you are using the four-band filter board. Good choice...its filtering is considerably sharper than that of the two-band filter board. Any settings that you have established for receive only get these capacitors into the ballpark for final adjustment for transmit. **All** of them will be adjusted again during the transmitter adjustments. In fact, it is unlikely you will see much or any power output just using the settings you now have in place. The adjustments for establishing output power on each band are far far more critical than those when adjusting these same capacitors for receive. Do not be tempted to make any further filter board adjustments to peak the receiver after you have established the proper settings for transmit. I could not get VFO frequency up to 3.090 by simple spreading of turns in L1, I had to remove L1 and remove a turn. I have *never* heard of this ever being a problem on a K1 unless L1 was wound with one extra turn (a common problem with toroids, since just sticking wire through the hole completes the first turn) or the turns were loosely wound on the toroid core.. Since removing L1 is a distinct possibility for future builders, maybe a note to NOT flush-cut the leads until you are SURE L1 is right. It is most unlikely that a properly assembled L1 will require subsequent de-soldering for turns adjustment. Congratulations on your K1. The K1 has been my favorite QRP rig since I built it in November 2000. I hope you bought the LCD backlight option. 73, Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 doesn't boot when KAT500 is unpowered
Hi Tom: See page 11 of the manual. 73, Ken K3IU ~~ On 1/29/2013 11:41 AM, Thomas Lindner wrote: Hi, my KAT500 works fine without any problems. It is connected to the K3 via the DB15 interface cable. There is no KPA500 in the chain. Today I noticed, the K3 hangs when switched on while there is no power supply to the KAT500! The K3 display is blank, no audio. No reaction from all buttons. Can somebody confirm that? Any ideas? 73 de Tom, DL2RUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 doesn't boot when KAT500 is unpowered
Normal Operation. See note on page 11. This one got me too, Tom. The KAT500 must be powered up first, then the K3. Oscar, WB5GCX On Tue, Jan 29, 2013 at 10:41 AM, Thomas Lindner dl2...@t-online.de wrote: Hi, my KAT500 works fine without any problems. It is connected to the K3 via the DB15 interface cable. There is no KPA500 in the chain. Today I noticed, the K3 hangs when switched on while there is no power supply to the KAT500! The K3 display is blank, no audio. No reaction from all buttons. Can somebody confirm that? Any ideas? 73 de Tom, DL2RUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
Very cool Paul congratulations on your success!!! I hope to start my K1 very soon it's in the mail... Scotty NU0S Nebraska Date: Tue, 29 Jan 2013 10:22:49 -0500 From: roc...@comcast.net To: elecraft@mailman.qth.net Subject: [Elecraft] My in-progress K1 is ALIVE!!! Nobody at my house cares about radio stuff, so I have to share this with somebody!! I am putting together my K1 and have gotten to the point where I install L1 to perform the VFO Range Test. Of course I just HAD to plug in an antenna to see if this thing can hear, so I push the ON/OFF button and ... ... ... IT'S ALIVE How exciting, I just listened to 40 CW all night, did VFO range tests, and went to bed. I peaked all the trimmers by ear by transmitting 2 watts from my big rig (into a dummy load); there must be a more scientific way to do this. But so far so good. At 5 watts I think what will keep me back is NOT that last dB I lose from bad tweeking of the caps! My only snags: 1. I did not have a DMM and assumed my analog Radio Shack meter would do. The RatShack meter gave me crazy readings, went to Amazon and got an Equus 3320 Autorange DMM for $21 and BINGO, all readings were right on. 2. I could not get VFO frequency up to 3.090 by simple spreading of turns in L1, I had to remove L1 and remove a turn. BUT I had already flush-cut the leads when I put it in. It was a BITCH to get L1 installed again and that one short lead in the hole deep enough for soldering. Since removing L1 is a distinct possibility for future builders, maybe a note to NOT flush-cut the leads until you are SURE L1 is right. Otherwise, HAPPY HAPPY JOY JOY. Paul K3STX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Portable Antenna
Yes, do please let us know what you find. I'm really interested. They'll probably roll it out at Dayton. 73 Gil, W1RG From: phys...@mac.com Date: Tue, 29 Jan 2013 08:25:00 -0800 To: m...@mo-net.com CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna Does anyone know more about the new SteppIR CrankIR? For instance, I assume it needs a ground plane and the photo seems to show it elevated like on a back deck or something. I should probably just drive down to SteppIR in Bellevue this afternoon and ask them, it is a 15 minute drive. If I find out anything I will report back if anyone is interested. I have found that companies are more easy to give out information in person then on the phone. 73, phil, K7PEH On Jan 29, 2013, at 7:48 AM, Fred Smith m...@mo-net.com wrote: I'm not a big fan of SteppIR a little overpriced and for me their beams were not a good choice because of the Stepper motors a lot of ice and wind here. Service issues would be a problem also no tower for me lol. I did look at that it looks like a fiberglass windsock pole and a fishing reel would work about the same and they are 31'. Fred/N0AZZ From: David McAnally [mailto:david.mcana...@gmail.com] Sent: Tuesday, January 29, 2013 9:29 AM To: Fred Smith Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Best Portable Antenna I don't recall seeing anyone mention the new CrankIR portable vertical antenna from SteppIR. Supposed to be available this spring. Scroll down on their home page to see the announcement. http://www.steppir.com/ Personally, I use a home made 80M OCF dipole at the moment. Regards, David McAnally WD5M On Tue, Jan 29, 2013 at 3:36 AM, Fred Smith m...@mo-net.com wrote: To the Group I received so many helpful ideas and solid advise it's hard to single out a single one for the best...All I can say I received the best ideas here than from any other spot many thanks to those who replied. This is why I recommend Elecraft to anyone who asks is the company in general and those on this forum for help. Product quality seems to follow after these other things, but it really helps. In summery I have decided I need at least 3 antennas for portable use depending on conditions, just as I would at home. It looks like I made a good decision when ordering to order the duel binding post BNC connector in fact a spare is in order I think. I have stocked up on several BNC's since the purchase of my KX3/K3's and preamps and such quality ones can be quite costly but I hate cheapies. Thx 73 to all, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] iSDR KX3
Curios: anyone else using the KX3 I/Q to iPAD with iSDR software? Great for demo at club meetings too ~ Cheers, Jan K1ND ---see www.digitalconfections.com for some details __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
Nice job! I had such a good time building my K1. mistakes and all. I have a K2, KX3 and a K3 but I'm most fond of my K1. 73 Stan AE7UT -- View this message in context: http://elecraft.365791.n2.nabble.com/My-in-progress-K1-is-ALIVE-tp7569319p7569334.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 Smarter Charger
Why is the available charger for the KX3 batteries so primitive? Why can't it stop charging when the batteries are fully charged? Why can't it start charging when the batteries need charging? This should be possible in software? Thank you. K6CG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KX3 Smarter Charger
My understanding is that the idea was to go for simplicity. To add more sophisticated features would add significantly to the cost for the charger. NiMH cells are fairly robust, and do not need the special monitoring that, for example, lithium batteries do. And the charging current is deliberately kept low, so that in the worst case scenario (trying to charge a fully charged battery) the cells would not be destroyed, but merely heat up, causing the temperature sensor to shut off the charging. And, by choosing NiMH type cells, it's possible to replace them in the field with conventional non-rechargeable alkaline cells, so you can get back on the air with what's likely the world's most universal battery cell type. 73 de Ray K2ULR On Jan 29, 2013, at 1:35 PM, kis...@me.com wrote: Why is the available charger for the KX3 batteries so primitive? Why can't it stop charging when the batteries are fully charged? Why can't it start charging when the batteries need charging? This should be possible in software? Thank you. K6CG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
It always pains me to no end when some of the older things are compared unfavorably to some of the newer technology. A lot of older things served us VERY WELL giving us what then were wonders when we had nothing else better! Spark telegraphy WAS a mess and crude! But it worked and saved a lot of lives at sea that would have been lost. It was replaced by CW or continuous wave Morse transmitters and regenerative receivers which were invented by the efforts of Lee deForest and Edwin Armstrong. Armstrong later invented the superheterodyne receiver which is still the standard receiver design! Radiotelephone started with AM or Amplitude Modulation which everyone used until SSSC (single sideband suppressed carrier) popularly known as just SSB replaced it very slowly after World War 2. Armstrong AGAIN invented wideband FM which didn't really take off until much after WW2 in broadcasting. It became a staple for VHF/UHF radio communication for business band, police and industrial use for two way communication. There are digitally enhanced forms of VHF/UHF radio now widely used such as cell phones and other types of devices only dreamed of not more than 2-3 decades ago! Ancient AM is still used today, but basically only for two purposes. One is AM broadcasting from about 550-1700 Khz. A holdover from ancient times dying but still alive and kicking Second it is used for aircraft communication from about 108-135 Mhz or so. An ESSENTIAL to safe airborne communications and safety. The military still uses it in the 225-400 Mhz band in mostly jet aircraft. WHY not SSB or FM? well because it does the job and it is reliable and the circuitry is much simpler! Yes we do have satellite communication...BUT..this requires very complex infrastructure which is much more subject to possible failure due the very complexity of the systems. Also very expensive in the first place. Lastly older Morse telegraphy commonly called CW by the last users: the Amateur Radio Service. You MUST learn to send and receive Morse code. It requires the simplest of transmitters and receivers and only the ability to use one's brain and ears! No complex interpreters in the form of other equipment is required (like digital computers) to send and receive messages. Messages can be sent in an encrypted form or a foreign language without the operator knowing what the message might contain! YES, maybe some people have declared it obsolete, but it is STILL useful and still practiced by hundreds of thousands of ham operators all over the globe. There is still a place for the old stuff along with all the newer, unusual, Gee Whiz technology coming out and being conceived YET by inventors and engineers worldwide. A lot of it is old but still is useful! Don't knock it too badly! 73, Sandy W5TVW -Original Message- From: David Gilbert Sent: Tuesday, January 29, 2013 3:04 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] The Old Days That seems like an odd and unnecessary disclaimer, but in reply I'll offer the opinion that the ratio of vinyl to CD's is roughly the same order of magnitude as the ratio of AM to SSB in ham radio*... and I'm pretty sure that most people would say that CDs replaced vinyl long ago. That doesn't mean that AM is an invalid mode, at least not as long as the FCC still allows it, but I think it's pretty certain that the bands would be a horrible mess if everyone was still using AM. 73, Dave AB7E * Before anyone takes issue with my comparison, keep in mind that the ratio of vinyl to CDs is skewed to the high side because CDs themselves are declining in favor of direct downloads. On 1/29/2013 1:26 AM, tnny...@yahoo.com wrote: Jim Sir. Was AM replaced by SSB? Or, was SSB an alternate mode to AM? I'm sure this debate can and has been going on since the devil was a boy. Lets remind ourselves that this a Hobby and we are classified as AMATEUR. PS: Let us respect Eric's request, and irrespective of our opinion, agree to disagree. (((73))) Milverton. __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6064 - Release Date: 01/28/13 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My in-progress K1 is ALIVE!!!
I opted for the one to provide the widest band coverage. I wrote: That provides about 180 kHz BFO band span. That's what I've used for 12 years in my K1. That should have been VFO band span. I like the 180 kHz span option because: (1) There is still a fair amount of Morse activity in North America on 40m that would be above the 7085 kHz upper limitation of the narrow VFO span option. (2) It allows overlap into the LSB-phone portion of the band. The K1 receives in LSB mode, so there is potential for cross-mode contacts. (3) It allows coverage on 30m to extend below 1 kHz for WWV. Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] WTB: K3 KAT3 Internal ATU
Are there any KAT3 out on the used market up for sale before I purchase a new one? If so, please email me direct. 73,ChadN0YK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
* On 2013 29 Jan 14:34 -0600, Sandy wrote: Ancient AM is still used today, but basically only for two purposes. One is AM broadcasting from about 550-1700 Khz. A holdover from ancient times dying but still alive and kicking Second it is used for aircraft communication from about 108-135 Mhz or so. An ESSENTIAL to safe airborne communications and safety. The military still uses it in the 225-400 Mhz band in mostly jet aircraft. WHY not SSB or FM? well because it does the job and it is reliable and the circuitry is much simpler! The conclusion here may well be part of it. A coworker who worked in avionics in a former life told me that the use of AM for aircraft communications is indeed for the ease of tuning but also because a weaker station can be heard under a stronger one unlike with FM and its capture effect (likely true for digital). AM allows an air controller or other aircraft to hear an emergency call when another station is transmitting. Based on my experience, I have no reason to doubt his conclusion. 73, de Nate, N0NB -- The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true. Ham radio, Linux, bikes, and more: http://www.n0nb.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
This is exactly why AM is used instead of FM. It has better weak signal performance and two signals mix linearly. wunder K6WRU On Jan 29, 2013, at 1:10 PM, Nate Bargmann wrote: * On 2013 29 Jan 14:34 -0600, Sandy wrote: Ancient AM is still used today, but basically only for two purposes. One is AM broadcasting from about 550-1700 Khz. A holdover from ancient times dying but still alive and kicking Second it is used for aircraft communication from about 108-135 Mhz or so. An ESSENTIAL to safe airborne communications and safety. The military still uses it in the 225-400 Mhz band in mostly jet aircraft. WHY not SSB or FM? well because it does the job and it is reliable and the circuitry is much simpler! The conclusion here may well be part of it. A coworker who worked in avionics in a former life told me that the use of AM for aircraft communications is indeed for the ease of tuning but also because a weaker station can be heard under a stronger one unlike with FM and its capture effect (likely true for digital). AM allows an air controller or other aircraft to hear an emergency call when another station is transmitting. Based on my experience, I have no reason to doubt his conclusion. 73, de Nate, N0NB -- The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true. Ham radio, Linux, bikes, and more: http://www.n0nb.us __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Test…Disregard
Test from new E-mail…Please disregard. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
The conclusion here may well be part of it. A coworker who worked in avionics in a former life told me that the use of AM for aircraft communications is indeed for the ease of tuning but also because a weaker station can be heard under a stronger one unlike with FM and its capture effect (likely true for digital). AM allows an air controller or other aircraft to hear an emergency call when another station is transmitting. Based on my experience, I have no reason to doubt his conclusion. 73, de Nate, N0NB Nate, that is exactly the reason AM is still used for aviation. 73 Bill NZ0T (old pilot). -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-s-comments-on-ESSB-and-AM-tp7569294p7569345.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Best Portable Antenna
I put this together a few months ago for a trip along the Blue Ridge Parkway, and it served well from our cabin in the woods Wanted to try it at the seashore near Hatteras but the weather cut thr trip short. Jackite 31' fiberglas mast, with the very top section replaced by a broken piece from an earlier mishap. AWG14 stranded wire runs **inside** the mast from the bottom until it protrudes an inch or so from the top of the (now hollow all the way) tip section. A little fitting made of PC board with a BNC for coax feed, and four screw lugs for radials/counterpoises. I usually use two pieces of AWG22 about 60 ft long and just stretch them out along the ground, zigzagging or bending as needs for the space. vertical counductor connects to BNC center with ring lugs and thumbscrews. T1 autotuner connected at the base with a bias tee in front of it. Another bias tee at the transmitter end. Optocoupler at the antenna end bias tee connected to remote jack of the T1. Battery and PB switch at the bias tee transmitter end. I carry a piece of rebar and hammer. A 3 ft section of PVC pipe large enough to slip **over** the bottom section of the Jackite. Some PVC Ts are drilled to slip over the rebar. Have used it on 80, 40, 30, 20, 17, 15, 12, and 10. I'm beginning to believe it works better than my 40 m full wave loop at home that is only 15 ft or so off the ground. 73, Jim, N5IB Woman is 57 But Looks 27 Mom publishes simple facelift trick that angered doctors... http://thirdpartyoffers.juno.com/TGL3141/5108463dd8cca463d40a3st01vuc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] best portable antenna
Did anyone mention the NorCal Qrp dipole made from 4 conductor computer ribbon? It forms the dipole and parrarel feedline including support loop. Fishing swivels can be used as additional hardware. It looks very neat! 4 conductor ribbon. 2 outside wires form the dipole and feedline with the two center wires forming a center tie off and support for the feedline. I've got a link or something somewhere but you can prob google it. 73 Mike R Play me some fiddle, but no stinkin' violin! Amateur/Ham Radio KE5GBC HF Echolink mobile __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Here's link for NorCal qrp doublet
http://www.norcalqrp.org/norcaldoublet.htm Play me some fiddle, but no stinkin' violin! Amateur/Ham Radio KE5GBC HF Echolink mobile __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
The old Four-Course Radio Range depended on the fact that two AM signals on the same frequency mix linearly. Off course one way, the pilot heard primarily an N. Off course the other, primarily an A. On course, the two covered each other and he heard a steady tone. It is extremely sensitive, you didn't have to be very far off course before you began to hear the letter faintly under the tone. The other huge advantage was it required only an AM radio and headphones in the aircraft. CONSOL, a 30's/early 40's aircraft nav system is another example. Fairly complex phased antennas on the ground. In the airplane, all the navigator had to do was count the number of dots he heard before they merged into a tone, and then look on a chart to determine his bearing to the station. Again, just an AM receiver. CONSOL was used by both the German and Allied air forces, possibly the only such system ever. The Allied planes used it to compute the winds crossing the Channel before they reached the coastline. Old isn't always crude. I've never transmitted AM with my K3, I don't have the filter(s), but it works with WWV. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 1/29/2013 1:58 PM, NZ0T wrote: Nate, that is exactly the reason AM is still used for aviation. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KX3 Smarter Charger
I don't claim to know about battery charging but why can't the charger stop when the batteries get to X volts and start charging when the total battery voltage drops below Y volts, would this feedback system add to the cost of the charger. I bought a smart charger at Harbor Freight for $5.99 the red light goes green when the batteries ( 4 NiMH) are fully charged and when you put depleted batteries in it it blinks red. Why can't the charger in the KX3 be totally transparent? load and forget. I found the whole charging instructions confusing after an initial 16 hour charge do I occasionally give it a 4 hour charge or what ? do I want a lot of hot batteries in there? K6CG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 doesn't boot when KAT500 is unpowered
Hi Tom, I have a KAT500-K and have had it operational since building it end of December. I have read the manual from front to back and it does mention that very fact: When using the KAT500 with the K3 and the two are interconnected using theDB15 interface cable, be sure to apply power to the KAT500 first (before switching on the K3). Because, as you have observed the K3 will exhibit stange behaviour: exactly as you have described. So Always Power the K3 On First when you have KAT500 connected Via the DB-15 interface cable! 73 from Eric Buggee, VK3AX. On 1/30/2013 3:41 AM, Thomas Lindner wrote: Hi, my KAT500 works fine without any problems. It is connected to the K3 via the DB15 interface cable. There is no KPA500 in the chain. Today I noticed, the K3 hangs when switched on while there is no power supply to the KAT500! The K3 display is blank, no audio. No reaction from all buttons. Can somebody confirm that? Any ideas? 73 de Tom, DL2RUM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 doesn't boot when KAT500 is unpowered
On 1/29/2013 4:23 PM, Eric Buggee wrote: Hi Tom, I have a KAT500-K and have had it operational since building it end of December. I have read the manual from front to back and it does mention that very fact: When using the KAT500 with the K3 and the two are interconnected using theDB15 interface cable, be sure to apply power to the KAT500 first (before switching on the K3). Because, as you have observed the K3 will exhibit stange behaviour: exactly as you have described. So Always Power the K3 On First when you have KAT500 connected Via the DB-15 interface cable! All good until the last sentence. Power the KAT500 first. Gus Hansen KB0YH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 doesn't boot when KAT500 is unpowered
Oops! Just goes to show:Read al before hitting send! Thanks Gus! Eric VK3AX. On 1/30/2013 10:43 AM, Augie Hansen wrote: On 1/29/2013 4:23 PM, Eric Buggee wrote: Hi Tom, I have a KAT500-K and have had it operational since building it end of December. I have read the manual from front to back and it does mention that very fact: When using the KAT500 with the K3 and the two are interconnected using theDB15 interface cable, be sure to apply power to the KAT500 first (before switching on the K3). Because, as you have observed the K3 will exhibit stange behaviour: exactly as you have described. So Always Power the K3 On First when you have KAT500 connected Via the DB-15 interface cable! All good until the last sentence. Power the KAT500 first. Gus Hansen KB0YH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
That was the reason I was given when I was flying a lot in the 1950's. And, on more than one occasion it proved correct when another aircraft stepped on my exchange with the tower. Probably unbelievable to pilots today, but in the 50's it was common to fly into large commercial airports such as McCarren in Las Vegas, Lindbergh in San Diego or LAX Los Angeles International on tower blinker lights alone too! Talk about the old days Hi!! 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter Underwood Sent: Tuesday, January 29, 2013 1:23 PM To: Elecraft List Subject: Re: [Elecraft] The Old Days This is exactly why AM is used instead of FM. It has better weak signal performance and two signals mix linearly. wunder K6WRU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Key Clicks
This past weekend, I took my K3 (SN 1428) to the W2GD 160M Contest station in West Creek, NJ where we used it as the run station. We used another K3 for the mult station. Both were connected through an Acom lockout box to the same amplifier and antennas. Following the contest, I received an email from Tony, K2SG, telling us that he heard key clicks across all of 160M when the run station was transmitting but not when the mult station was transmitting. Tony lives about 2 miles from our contest station and has two K3s and P3. He heard the clicks on both K3s and could see them on the P3. This is the first contest that we used my K3 at the run station -- in past contests, we used it for the mult station. I noticed that this year the mult station was not able to hear as well when the run station was transmitting. I now suspect this was due to the clicks from my K3. I've been able to replicate the problem at my station with a combination of using the K3 transmitting into my inverted-L while receiving on an IC-736 using a EWE about 100 feet from teh inverted-L. I can hear the clicks across 160M when sending with either the internal keyer (paddles connected to Paddle jack on the back of the K3) or an external keyer (connected to Key jack on the back of the K3). The clicks are very evident on 160M running between 0 and 100 watts. They are slightly evident on 80M and I could not detect them on 40M or above. I found that I can eliminate the clicks by using PTT when sending CW. I first noticed this when using the PC to send CW. (I use the RS-232 interface to send CW and that relies on PTT). If I use my foot switch to trigger PTT, there are no clicks. However, if I release the foot switch, the clicks return and don't go away if I depress the foot switch again. I've been able to find some references to K3 clicks and spurious signals on 160M caused by the T/R switching PIN diodes. I've also seen a brief reference to a fix to this problem but there were no specifics. I need help fixing this key click problem before I can take the K3 to a multi-op station. Gerry, W1GD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Key Clicks
On 1/29/2013 4:45 PM, w...@aol.com wrote: I need help fixing this key click problem before I can take the K3 to a multi-op station. Hmmm. I've never heard of a K3 causing clicks, but I guess it might if something broke. Don't rule out amplifier bias as the cause of the problem at W2GD. W8JI, who has designed a lot of power amps, made the following post to the Topband list this morning. Based on what he's heard on the air from certain Acom amps, he suspects that they have this problem. On the NCCC list today, N6RK noted that he had to fix a similar issue with an Intech amp. 73, Jim K9YC = = = = = = = = = = = = If your amplifier uses automatic bias, it can cause clicks. There are two things that will prevent or minimize this. 1.) Any auto bias system should not fully cut the tubes off. The tubes should stay very slightly into conduction, very near class B but slightly on the AB side of B. (B is exactly zero idle current, AB is any amount of idle current) 2.) The bias system should be fast on with a hang time on off. It should activate much faster than the envelope rise time, and deactivate slower than the fall time. 3.) The bias system should activate with almost zero power. Even -30 dB background noise on SSB mode should turn on the bias. If it sounds choppy on SSB, it is certainly messing up the CW signals. A good test is to go to SSB mode with constant room background noise and gradually turn up mic gain while watching the plate current meter. With a 100 watt drive requirement auto bias should fully activate at 10 milliwatts drive (0.7 volts RMS input drive voltage). This is the type of power level we are used to from signal generators, not transmitters. The AL80B, for example, activates the operating bias with ONE milliwatt of RF power. This prevents the amplifier from changing the rise time of CW envelopes. Some amplifiers activate much higher levels, and this will cause keying artifacts that are as K9YC describes. Anyone using auto bias and getting complaints should read this: http://www.w8ji.com/electronic_bias.htm Having a K3 does not make all signals clean, and not having one does not make all signals dirty. It is the entire system that matters, and there is certainly more than one clean radio in the world. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Its not over yet, I've gone back to basic K2 troubleshooting and find i have what seems a massive loss through the variable Crystal filter ?
Still having issues with my K2, I did align the filters using the Spectrogram software so I believe they are ok Well I decided to start from scratch and started RX troubleshooting/signal tracing before I go back to TX side want to make sure the RX is 100% and while the stages up to the input of the crystal filter look ok the output compared to the manual is extremely low. I ended up using the RF probe supplied in the kit so all is known. Also removed the SSB board and fitted the corresponding jumpers at W2 and W3 and C167 Here is what i am seeing with a 0.14Vrms input to the antenna I used 10.1Mhz but I tried other bands with similar results. All voltages up to the input of the variable crystal filter look normal. Case or collector of Q22 = 2.3Vrms At W2 = ~ 2Vrms cathode D30 =0.89Vrms cathode D31 =0.95Vrms cathode D32 =0.757Vrms cathode D33 =0.767Vrms cathode D34 =0.735Vrms W3 = 0.080Vrms the K2 book on Page 11 says it should be about 0.34Vrms , I am way low compared to that. I suspect either D34 or T7 ? Also I don't appear to be able to saturate IF amp it says I should read approx 0.15Vrms at Pin 8 of U12 Am I on the right track. Thanks again, Cliff VK2CCJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Key Clicks
Tnx Jim. One of my first thoughts was with the amplifier. But we had no issues with K9RS's K3. Also, I was able to hear these clicks running barefoot even with the power in the K3 turned down to 0 watts. Of course, my transmit and receive antennas are pretty close together. Right now, I feel this has something to do with T/R switching but only when using VOX and not PTT. 73, Gerry, W1GD -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Key-Clicks-tp7569354p7569357.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3/SVGA Beta Firmware 1.24/1.14 Now Available
First time I left the VGA monitor on and the update failed. I turned the monitor off and this time the update went without a hitch. The new more translucent color the for the receive VFO when operating split is great! Thanks. ..mike AI6II __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Best Antenna Portable/Tabletop Operation for KX3
I have great success with a buddistick and setup using a small antenna analyser. I use a camera tripod as a base to get it a couple of feet off the ground and it is quick and easy to setup anywhere. If it's going to be a long walk I use wire and toss things into trees. The wire winders that come from the buddistick people are ideal. I tie nots in the wire at the quarter wavelength points for each band (you can feel them when setting up in the dark). Paired with a length of thin coax with a choke on the antenna end and it's about as light as you can get. The tuner in the KX3 is brilliant. Peter, VK4JD -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred Smith Sent: Monday, 28 January 2013 10:26 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Best Antenna Portable/Tabletop Operation for KX3 Looking for the best out of the worst kind of antenna for my KX3 all band. I have the MFJ telescopic with the taps you plug into for the different but there must be something better out there. What have others used that they have been pleased with performance of? I have checked the reviews of others and most seem to be not much better than what I have, the Perth among them. 73, Fred/N0AZZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
I was personally in military avionics during the days of the SCR-522 and ARC-3 (both VHF). Later with the Collins ARC-27 and the RCA ARC-34 which were both UHF sets (225-400 Mhz.) I know FM was proposed by some at one time and it was nixed due to the capture effect and SSB also proposed but nixed due to additional complications of tighter frequency stability. They finally split the channeling to get more frequency space assignable by using smaller guard bands between channels. I was gone from the military avionics when that happened. In an Air National Guard group flying F-102A's at the time. They are now flying F-15's! That has been some time ago when everything was vacuum tubes! 73, Sandy W5TVW -Original Message- From: NZ0T Sent: Tuesday, January 29, 2013 3:58 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] The Old Days The conclusion here may well be part of it. A coworker who worked in avionics in a former life told me that the use of AM for aircraft communications is indeed for the ease of tuning but also because a weaker station can be heard under a stronger one unlike with FM and its capture effect (likely true for digital). AM allows an air controller or other aircraft to hear an emergency call when another station is transmitting. Based on my experience, I have no reason to doubt his conclusion. 73, de Nate, N0NB Nate, that is exactly the reason AM is still used for aviation. 73 Bill NZ0T (old pilot). -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-s-comments-on-ESSB-and-AM-tp7569294p7569345.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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6064 - Release Date: 01/28/13 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] The Old Days
What little bit of flying I did was in J-3's and the Aeronca Champion. Both had no electrical system and we paid attention to the tower and the donut gun for visual signals on the ground and in the traffic pattern. Once you got out of the pattern, you were on your own VFR only! A pilot had to keep his head out of his ass at all times to survive if he was prudent! 73, Sandy W5TVW -Original Message- From: Ron D'Eau Claire Sent: Tuesday, January 29, 2013 6:38 PM To: 'Elecraft List' Subject: Re: [Elecraft] The Old Days That was the reason I was given when I was flying a lot in the 1950's. And, on more than one occasion it proved correct when another aircraft stepped on my exchange with the tower. Probably unbelievable to pilots today, but in the 50's it was common to fly into large commercial airports such as McCarren in Las Vegas, Lindbergh in San Diego or LAX Los Angeles International on tower blinker lights alone too! Talk about the old days Hi!! 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter Underwood Sent: Tuesday, January 29, 2013 1:23 PM To: Elecraft List Subject: Re: [Elecraft] The Old Days This is exactly why AM is used instead of FM. It has better weak signal performance and two signals mix linearly. wunder K6WRU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6064 - Release Date: 01/28/13 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Its not over yet, I've gone back to basic K2 troubleshooting and find i have what seems a massive loss through the variable Crystal filter ?
Cliff, When looking at the RF voltage after the IF filter, tune the K2 slowly while looking for the peak RF voltage at U12 pin 4. You will not be able to see the IF amplifier saturation with diodes D40 and D41 in place - that information is prior to the introduction of those diodes. T7 should be with the green winding closest to the crystal filter, the red winding adjacent to pins 4 and 5 of U12. Turn off the AGC (press PRE and REV buttons together) and see if the audio level comes up. You should have more RF voltage at U12 pin 8 than you do at U12 pin 4. 73, Don W3FPR On 1/29/2013 8:21 PM, Clifford Hynds wrote: Still having issues with my K2, I did align the filters using the Spectrogram software so I believe they are ok Well I decided to start from scratch and started RX troubleshooting/signal tracing before I go back to TX side want to make sure the RX is 100% and while the stages up to the input of the crystal filter look ok the output compared to the manual is extremely low. I ended up using the RF probe supplied in the kit so all is known. Also removed the SSB board and fitted the corresponding jumpers at W2 and W3 and C167 Here is what i am seeing with a 0.14Vrms input to the antenna I used 10.1Mhz but I tried other bands with similar results. All voltages up to the input of the variable crystal filter look normal. Case or collector of Q22 = 2.3Vrms At W2 = ~ 2Vrms cathode D30 =0.89Vrms cathode D31 =0.95Vrms cathode D32 =0.757Vrms cathode D33 =0.767Vrms cathode D34 =0.735Vrms W3 = 0.080Vrms the K2 book on Page 11 says it should be about 0.34Vrms , I am way low compared to that. I suspect either D34 or T7 ? Also I don't appear to be able to saturate IF amp it says I should read approx 0.15Vrms at Pin 8 of U12 Am I on the right track. Thanks again, Cliff VK2CCJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Its not over yet, I've gone back to basic K2 troubleshooting and find i have what seems a massive loss through the variable Crystal filter ?
Ok Don, T7 is right way round, continuity seems good Audio does increase when AGC turned off Unfortunately U12 output at pin 8 is much lower than pin4 with 0.14Vrms Ant input and RFgain at minimum 0.365Vrms at Pin4 0.025vRMS at Pin 8 changing to 0.151 when RF gain turned fully up. U12 DC Voltages seem ok. 17.74 27.74 3 0 4 0 5 4 6 2.467 7 0 8 7.73 73 Cliff VK2CCJ On Wed, Jan 30, 2013 at 1:27 PM, Don Wilhelm w3...@embarqmail.com wrote: Cliff, When looking at the RF voltage after the IF filter, tune the K2 slowly while looking for the peak RF voltage at U12 pin 4. You will not be able to see the IF amplifier saturation with diodes D40 and D41 in place - that information is prior to the introduction of those diodes. T7 should be with the green winding closest to the crystal filter, the red winding adjacent to pins 4 and 5 of U12. Turn off the AGC (press PRE and REV buttons together) and see if the audio level comes up. You should have more RF voltage at U12 pin 8 than you do at U12 pin 4. 73, Don W3FPR On 1/29/2013 8:21 PM, Clifford Hynds wrote: Still having issues with my K2, I did align the filters using the Spectrogram software so I believe they are ok Well I decided to start from scratch and started RX troubleshooting/signal tracing before I go back to TX side want to make sure the RX is 100% and while the stages up to the input of the crystal filter look ok the output compared to the manual is extremely low. I ended up using the RF probe supplied in the kit so all is known. Also removed the SSB board and fitted the corresponding jumpers at W2 and W3 and C167 Here is what i am seeing with a 0.14Vrms input to the antenna I used 10.1Mhz but I tried other bands with similar results. All voltages up to the input of the variable crystal filter look normal. Case or collector of Q22 = 2.3Vrms At W2 = ~ 2Vrms cathode D30 =0.89Vrms cathode D31 =0.95Vrms cathode D32 =0.757Vrms cathode D33 =0.767Vrms cathode D34 =0.735Vrms W3 = 0.080Vrms the K2 book on Page 11 says it should be about 0.34Vrms , I am way low compared to that. I suspect either D34 or T7 ? Also I don't appear to be able to saturate IF amp it says I should read approx 0.15Vrms at Pin 8 of U12 Am I on the right track. Thanks again, Cliff VK2CCJ __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@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
[Elecraft] OT: Am for aircraft communications
Another -very- significant factor in the continuing use of AM for aircraft communications is it's universal use world wide. It's considered too expensive and impractical to abandon on a worldwide basis. Actually, I feel this is of more importance than the blending asset. 73! Ken - K0PP On Wed, Jan 30, 2013 at 2:10 AM, Sandy ebj...@charter.net wrote: Nate, that is exactly the reason AM is still used for aviation. 73 Bill NZ0T (old pilot). -- View this message in context: http://elecraft.365791.n2.nabble.com/Don-s-comments-on-ESSB-and-AM-tp7569294p7569345.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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2639/6064 - Release Date: 01/28/13 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] For Sale: KDSP2, KAT100, KPA100, other parts
Greetings, y'all; Sold my K2, so I've got some kits and projects that I never got around to doing that I'd like to sell: Both of these are still new, unbuilt, and untouched, and still in the boxes I received them in: KDSP2 Internal DSP Filer and Real-Time clock: $155.00. KAT100-2 150 W External ATU for EC2 Mounting. The manual says Revision C, March 12, 2003, but the circuit board says Revision B, 2002. I was going to build a separate K2 amp with ATU. $150.00. This is built, but I didn't build it: KPA100 - 100 Watt amplifier for K2 - I bought this off of the internet, and never checked it out. I don't know who built it, but his work looks good. The manual says Revision A, but the circuit board is a Revision B, dated 2002. Considering the un-tried circumstances, I'll sell it as-is for $100.00. Miscellaneous parts: ETS2 EC2 Tilt Stand $12.00 EC2 Enclosure - $50.00 All prices include shipping within the United States via flat-rate priority mail. I will consider shipping outside of the U.S., but I must add the actual shipping costs. Please contact me off the list at 2004goldw...@charter.net. 73, Dan - K0ZL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 questioin
I'm planning on running the Minnesota QSO party with one of my K3s in the car. Would appreciate any and all QSO's--see W0AA.org for information on the contest--just Saturday, Feb 2, 8 a.m. CST to 6 p.m. CST. My question is that I can't figure out why, when I tap up band or down band, I can't get 40 meters! It goes from 30 meters to 20 meters both directions without stopping at 40! I usually don't use these buttons but with my old lap top, I need to. Of course I can key in the frequency, and usually can type it in to the logging program, but for some reason that doesn't work with my old dos laptop running NA. Any suggestions? John, N0IJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 question
John, I think you mean it goes from 60M to 30M without stopping at 40. If that's what you meant to type, then I bet the config menu item BND MAP has 40 inadvertently included. 73, Jim N7US -Original Message- I'm planning on running the Minnesota QSO party with one of my K3s in the car. Would appreciate any and all QSO's--see W0AA.org for information on the contest--just Saturday, Feb 2, 8 a.m. CST to 6 p.m. CST. My question is that I can't figure out why, when I tap up band or down band, I can't get 40 meters! It goes from 30 meters to 20 meters both directions without stopping at 40! I usually don't use these buttons but with my old lap top, I need to. Of course I can key in the frequency, and usually can type it in to the logging program, but for some reason that doesn't work with my old dos laptop running NA. Any suggestions? John, N0IJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] OT: Am for aircraft communications
Right on Ken! It's great to live in a country where the newest is right there to buy, but much of the world isn't anywhere near that. Don't rule out the old stuff, it worked then, some of it works now. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 1/29/2013 7:49 PM, Ken G Kopp wrote: Another -very- significant factor in the continuing use of AM for aircraft communications is it's universal use world wide. It's considered too expensive and impractical to abandon on a worldwide basis. Actually, I feel this is of more importance than the blending asset. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 questioin
You disabled this band. Dont have mine here, not sure abt that, I think is in the menu 73, Jorge Enviado desde mi BlackBerry® device de Antel -Original Message- From: jbaumga...@aol.com Sender: elecraft-boun...@mailman.qth.net Date: Tue, 29 Jan 2013 22:56:49 To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 questioin I'm planning on running the Minnesota QSO party with one of my K3s in the car. Would appreciate any and all QSO's--see W0AA.org for information on the contest--just Saturday, Feb 2, 8 a.m. CST to 6 p.m. CST. My question is that I can't figure out why, when I tap up band or down band, I can't get 40 meters! It goes from 30 meters to 20 meters both directions without stopping at 40! I usually don't use these buttons but with my old lap top, I need to. Of course I can key in the frequency, and usually can type it in to the logging program, but for some reason that doesn't work with my old dos laptop running NA. Any suggestions? John, N0IJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] For Sale: KDSP2, KAT100, KPA100, other parts - SALE PENDING
Believe it or not, sales are pending on all items. Thanks for the quick response! Dan, K0ZL Greetings, y'all; Sold my K2, so I've got some kits and projects that I never got around to doing that I'd like to sell: Both of these are still new, unbuilt, and untouched, and still in the boxes I received them in: KDSP2 Internal DSP Filer and Real-Time clock: $155.00. KAT100-2 150 W External ATU for EC2 Mounting. The manual says Revision C, March 12, 2003, but the circuit board says Revision B, 2002. I was going to build a separate K2 amp with ATU. $150.00. This is built, but I didn't build it: KPA100 - 100 Watt amplifier for K2 - I bought this off of the internet, and never checked it out. I don't know who built it, but his work looks good. The manual says Revision A, but the circuit board is a Revision B, dated 2002. Considering the un-tried circumstances, I'll sell it as-is for $100.00. Miscellaneous parts: ETS2 EC2 Tilt Stand $12.00 EC2 Enclosure - $50.00 All prices include shipping within the United States via flat-rate priority mail. I will consider shipping outside of the U.S., but I must add the actual shipping costs. Please contact me off the list at 2004goldw...@charter.net. 73, Dan - K0ZL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
