Re: [Elecraft] Grounding Mat Chatter
Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. kf4by wrote: For a grounding mat I simply used the anti-static bag the RF board + was packaged in. I clipped my wrist strap to it until the radio grew to be a + chassis. At that time I clipped the wrist strap to the chassis but kept + the mat in place. All sub-assembly components were unwrapped on the + mat. Hence everything was the same potential. -- David Woolley we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
How are you testing for offset? Sounds like I should check the offset on my 5 and 8 pole filters. 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Saturday, March 27, 2010 7:23 PM To: Elecraft List Subject: Re: [Elecraft] scopeing filters for eventual diversity receive. On Sat, 27 Mar 2010 15:09:02 -0700, Ed Muns wrote: However, my 400Hz 8-poles are offset by as much at 80Hz. I've observed that too. 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] Grounding Mat Chatter
A proper grounding mat costs a fraction of the price of a transceiver, so why not use a proper mat and avoid the risk? Perhaps Elecraft should sell anti-static mats and wrist bands. There have also been complaints that the DSP board upgrade included the risk of static damaged boards being re-used and shipped to unsuspecting K3 owners. As has been said on here countless times, static damage doesn't necessarily show up straight away. 73 Dave, G4AON - For a grounding mat I simply used the anti-static bag the RF board was packaged in. I clipped my wrist strap to it until the radio grew to be a chassis. At that time I clipped the wrist strap to the chassis but kept the mat in place. All sub-assembly components were unwrapped on the mat. Hence everything was the same potential. The result: I didn't spend money on a mat I would only occasionally use and #3995 is performing flawlessly. I guess you might call it the mid-west farm boy approach, make due with what you have. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KXV144 Question
OK, what frequency is it transmitting on? What frequency did you want? What is the actual offset? How have you determined that the problem is the frequency? Does it work correctly when you do use the transmit offset feature? Here is an 'odd' question: Are you trying to use a CTSS tone? Mark AD5SS On Sat, Mar 27, 2010 at 11:03 PM, jmalloy jmal...@hamilton.edu wrote: Hi, folks, I just installed the KXV144 in my K3 and all went smoothly -- it even works, after a fashion. I have this one teensy problem... ...it's not transmitting on the frequency (simplex) it says it's on. I know about setting ALT for -/+ or simplex, I've got the ADR set to internal transverter, power and all other settings are nominal and the frequency offsets for 144 and 146 Mhz are entered... ...but it still not transmitting right. What could I be overlooking? (By the way, in receives very nicely! After I get this problem solved I'll start looking down around 144 Mhz.) Many thanks! 73, __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Grounding Mat Chatter
This thread got me off onto a tangent, trying to measure resistances on some of these anti-static materials, such as the black foam pad and the silvery plastic envelope. I had a capacitor discharge through the unknown and used a MOSFET to monitor the capacitor, since a 10 M-ohm DMM would have discharged it. I got 33 G-ohms between two electrodes about an inch apart in one of the black pads and 4.2 G-ohms between two electrodes 1/4 inch apart in one of those envelopes. Discussion on my blog - http://wa5bdu.blogspot.com/ 73-Nick, WA5BDU David Woolley (E.L) wrote: Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Despite this fact, my K3 survived my totally inadequate use of the pink packing material and the silvery anti-static bags also. I think this whole issue is being blown way out of proportion. If these things were indeed that static sensitive, they'd be dropping like flies all over the world on a daily basis. Can we go back to talking about how to use these radios better and stop the arguing about minutiae? 73, Bob W5OV P.S. I installed my DVR board 2 weeks ago (without an approved static mat!) and it works perfectly alone and in conjunction with N1MM. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Woolley (E.L) Sent: Sunday, March 28, 2010 2:35 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. kf4by wrote: For a grounding mat I simply used the anti-static bag the RF board + was packaged in. I clipped my wrist strap to it until the radio grew to be a + chassis. At that time I clipped the wrist strap to the chassis but kept + the mat in place. All sub-assembly components were unwrapped on the + mat. Hence everything was the same potential. -- David Woolley we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Reminds me of some of the aviation newsgroups I follow - some topics go on and on, die down for a few days/weeks and then start back up all over again (props and oil for example). It's generally things that you can't confirm go one way or the other until after a looong time and a lot of money spent, neither of which pilots have in great quantities hi hi. I will say tho that I have personally made things like computer parts - DIMMS and a few other things - go kapow with ESD especially in carpetted rooms with no precautions taken. So with that in mind I went ahead and invested in a good Desco mat and strap before I did my K2 build. I'll use it with my K3 when it gets here next week too. Fortunately, an anti-stat mat is one of those tools you can buy once and use forever and for a variety of different things, i.e. mine serves as the op. table top when I'm not trying to build something. etc. So ultimately in the end I think it's a worthwhile tool to invest in even with the initial high cost for a good one. But buying good tools is always a good investment, even if you pinch pennies on the thing you build them with, but that's just my personal philosophy. 73, LS W5QD -- View this message in context: http://n2.nabble.com/Grounding-Mat-Chatter-tp4811425p4812942.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] (no subject)
Differences between discrete and discretize: Latter is a transitive verb belonging to the engineering/mathematics/physics world (and perhaps beyond). It would be difficult to discrete something. To Discrete does not exist as a transitive verb. For what it's worth, the pattern used for adopting loan words (or synthesizing new ones) in English depends partly on the semantic makeup of the original word. Discretize is a verbal form that will probably become a perfectly acceptable term in the language in general for giving some item the property of being discrete. In fact, this -ize suffixation is a general pattern for creating this type of verb where the idea is to transmit a property to something. Non-working examples would be synthesized verbs like to hoover up, a term common in many British English dialects, to email which has a transitive form, etc. One can't hooverize or emailize without really sitting down and thinking about it pretty hard Oh well, just the morning coffee talking hi hi 73, LS W5QD -- View this message in context: http://n2.nabble.com/no-subject-tp4811489p4813049.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] Elecraft Digest, Vol 71, Issue 40
I ran into an issue trying to program memory with CW scripts using the config. sw. The manual states this is possible not does not go into details. I naturally tried using the terminal tab but every time I tried to program memory only a string of Es were recorded, so when I played M1 (for instance) all I got was a string of dits. I opened the Help section of the sw but could not find anything to help me, there. I guess Elecraft expects most hams will use a key to input messages into memory. So I did what I always do with software, I started looking around and experimenting. Edit memory is found under configurationhmm, I wondered. But there was no command for programing the radio. Finally, I discovered that the process is: 1) Press REC, on the radio 2) Press M# (M1 in my case) on the radio 3) Edit memory one with the script I wanted to send 4) Press SAVE on the edit memory page of the sw 5) Press REC on the radio The script was sent to the K3 memory apparently instantaneously! In any case M1 was now programmed as I wanted. Press/Hold M1 resulted in the CW beacon message that I wanted to send. I might have been able to send the script from the terminal program, but only with the computer connected. On thing I did realize from this was the K3 is ready to go with soundcard sw; merely connect audio patch cords to line-in and line-out and connect a serial cable to the RS-232 port. I haven't actually done this, yet, but expect it will work just fine. I have used a HB radio/computer interface (has keying transistors and audio isolation xfmrs), but this makes for a quick set up with no extra cost (or clumsy external device). I do not know how the USB adapter will work simulating the RS-232 port (I bought the adapter from K3). If it can generate RS-232 levels for DTR and RTS lines than it should work FB. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com 500-KHz/CW, 144-MHz EME, 1296-MHz EME DUBUS Magazine USA Rep dubus...@hotmail.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] kio2 for K2 15w
Hello all , any kio2 for sale (k2 15w) Rolf SM2MZC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
Inject a clean signal to the K3, around S5 - S7 in level, go into the CONFIG menu, adjust the filter offset (FLx FRQ) by rotating the main tuning knob until the signal drops one S point then adjust it to the other side until it again drops one S point. Set the offset to the middle of the two extremes. My 400 Hz 8 pole filter appeared to have more insertion loss than my 250 Hz 8 pole, setting the offset solved the apparent additional insertion loss. My settings are -0.07 for the 400 Hz and -0.05 for the 250 Hz. 73 Dave, G4AON K3/100 #80 --- How are you testing for offset? Sounds like I should check the offset on my 5 and 8 pole filters. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Being in the semiconductor business and having sat by a anti-static crusader in a previous company, I can tell you you're completely wrong about long-term damage. However, if you want to treat your rig like a normal computer and get a new one in a couple of years, you'll be fine. On Sun, 28 Mar 2010, Bob Naumann wrote: Despite this fact, my K3 survived my totally inadequate use of the pink packing material and the silvery anti-static bags also. I think this whole issue is being blown way out of proportion. If these things were indeed that static sensitive, they'd be dropping like flies all over the world on a daily basis. Can we go back to talking about how to use these radios better and stop the arguing about minutiae? 73, Bob W5OV P.S. I installed my DVR board 2 weeks ago (without an approved static mat!) and it works perfectly alone and in conjunction with N1MM. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Woolley (E.L) Sent: Sunday, March 28, 2010 2:35 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. kf4by wrote: For a grounding mat I simply used the anti-static bag the RF board + was packaged in. I clipped my wrist strap to it until the radio grew to be a + chassis. At that time I clipped the wrist strap to the chassis but kept + the mat in place. All sub-assembly components were unwrapped on the + mat. Hence everything was the same potential. -- Hisashi T Fujinaka - ht...@twofifty.com BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
This would be like buying a new Apple computer every 2 years. Chris W7CTH From: Hisashi T Fujinaka ht...@twofifty.com To: Bob Naumann w...@w5ov.com Cc: Elecraft@mailman.qth.net Sent: Sun, March 28, 2010 10:11:36 AM Subject: Re: [Elecraft] Grounding Mat Chatter Being in the semiconductor business and having sat by a anti-static crusader in a previous company, I can tell you you're completely wrong about long-term damage. However, if you want to treat your rig like a normal computer and get a new one in a couple of years, you'll be fine. On Sun, 28 Mar 2010, Bob Naumann wrote: Despite this fact, my K3 survived my totally inadequate use of the pink packing material and the silvery anti-static bags also. I think this whole issue is being blown way out of proportion. If these things were indeed that static sensitive, they'd be dropping like flies all over the world on a daily basis. Can we go back to talking about how to use these radios better and stop the arguing about minutiae? 73, Bob W5OV P.S. I installed my DVR board 2 weeks ago (without an approved static mat!) and it works perfectly alone and in conjunction with N1MM. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Woolley (E.L) Sent: Sunday, March 28, 2010 2:35 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. kf4by wrote: For a grounding mat I simply used the anti-static bag the RF board + was packaged in. I clipped my wrist strap to it until the radio grew to be a + chassis. At that time I clipped the wrist strap to the chassis but kept + the mat in place. All sub-assembly components were unwrapped on the + mat. Hence everything was the same potential. -- Hisashi T Fujinaka - ht...@twofifty.com BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 unstable ssb power
Help! I have K3 #2100. On CW power is very stable, but not on SSB. There is some change on output power, it is not constant. If I tune my linear (Titan) on CW with 50 W, output is stable 1500 W. but on SSB with the same driving power I get only about 1200 W? If I whistle to mic it takes about 2-3 seconds and power rising to 1500W. Titan has peak power meter and I have also Bird 43. I have tested also to 50 ohm dummy load and without linear, with and without tuner. Really, power is first about 80 W and then it go to 100 W very slowly on SSB. TXG VCE has no effect. Why? Is that normal behavior of K3? I have latest firmware, today loaded. I think it is like ALC react too much and too quickly. 73 de Juha - oh6os __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 unstable ssb power
Juha this problem is an old one. Some time back the K3 had poor ALC which allowed for overshoot on peaks, the firmware was altered to soften the ALC control with the results you (and the rest of us) experience. The power can slowly increase over the first few seconds on SSB, the effect is less if you TUNE first via the front panel button. Also, have you checked that you are driving the ALC meter reasonably well, as per the manual? For comparison, my TS-480SAT is also quite soft on ALC control with the peak power seeming to vary from one moment to the next. With some previous radios I recall seeing the peaks on an oscilloscope looking like a trimmed hedge, which is liable to create excessive IMD. I use an LP-100 peak reading power meter and the K3 is similar in it's peaks compared to my TS-480 with the same linear (Acom 1000). I don't think it's anything to worry about. 73 Dave, G4AON K3/100 #80 f/w 3.79 - I have K3 #2100. On CW power is very stable, but not on SSB. There is some change on output power, it is not constant. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Who thought that a Grounding Mat could generate over 100 emails. People, it's a grounding mat. Seriously... Date: Sun, 28 Mar 2010 12:49:10 +0100 From: elecr...@astromag.co.uk To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter A proper grounding mat costs a fraction of the price of a transceiver, so why not use a proper mat and avoid the risk? Perhaps Elecraft should sell anti-static mats and wrist bands. There have also been complaints that the DSP board upgrade included the risk of static damaged boards being re-used and shipped to unsuspecting K3 owners. As has been said on here countless times, static damage doesn't necessarily show up straight away. 73 Dave, G4AON - For a grounding mat I simply used the anti-static bag the RF board was packaged in. I clipped my wrist strap to it until the radio grew to be a chassis. At that time I clipped the wrist strap to the chassis but kept the mat in place. All sub-assembly components were unwrapped on the mat. Hence everything was the same potential. The result: I didn't spend money on a mat I would only occasionally use and #3995 is performing flawlessly. I guess you might call it the mid-west farm boy approach, make due with what you have. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html _ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/210850553/direct/01/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Filter offsets
Fellow Crafters, The subject matter on this list often gets very technical - too technical - for those of us who have their primary expertise in areas other than digital electronics and computer programming, etc. Out here in the country, I don't have access to spectral analyzers and other test equipment. I determine my K3 filter offsets by plumb bobbing. 20 lb. monofiliment with the ceiling fan off. Proceed at your own discretetion. 73, Mike K5NU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using Low Pwr on K3
I am wanting to know if there are any other adjustments that I need to do to be able to run low pwr on my k3? For example like 1-5 watts? I am wanting to use it in the upcoming QRP contest. I have a K3 with the 100 watts option. When I tune my rig with an external tuner, say starting with 30 watts and go down to 2.2 watts on pwr setting on radio, it shows abt 6 watts on tuner. The swr meter on radio does not show anything past the 2.2 watts setting, it looks like this -- instead of 1:1-1. I have done the 5 watt calibration in the k3 utility. Thanks John KM5PS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 unstable ssb power
Thanks, Ok, so it is feature! Yes I have adjust MIC and CMP just like manual, not effect. So there is no solution to problem. juha 2010/3/28 Dave, G4AON elecr...@astromag.co.uk Juha this problem is an old one. Some time back the K3 had poor ALC which allowed for overshoot on peaks, the firmware was altered to soften the ALC control with the results you (and the rest of us) experience. The power can slowly increase over the first few seconds on SSB, the effect is less if you TUNE first via the front panel button. Also, have you checked that you are driving the ALC meter reasonably well, as per the manual? For comparison, my TS-480SAT is also quite soft on ALC control with the peak power seeming to vary from one moment to the next. With some previous radios I recall seeing the peaks on an oscilloscope looking like a trimmed hedge, which is liable to create excessive IMD. I use an LP-100 peak reading power meter and the K3 is similar in it's peaks compared to my TS-480 with the same linear (Acom 1000). I don't think it's anything to worry about. 73 Dave, G4AON K3/100 #80 f/w 3.79 - I have K3 #2100. On CW power is very stable, but not on SSB. There is some change on output power, it is not constant. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] T32 IOTA Dxpedition K3 problems
Found on the T32 website: K3 problem. Any ideas ? 2010-03-28 08:30 This morning local time (Saturday 21:00 gmt) we started our journey to Caroline island. Estimate 5 days sailing. Almost 9,000 Qs in our logs from the 3 days on Malvern. Derek's beloved Elecraft K3 has a problem! On 40m only, the instant the rig is keyed, even at min power, it switches off as if the supply plug is disconnected. After an indeterminate delay power is restored and the rig can be used on other bands. Any ideas, please contact Maury, IZ1CRR (iz1crr @ tin.it). 73 Derek Maybe someone is able to help them. 73 de Roland, DC1RS - K3/100 #1243, KFL3A-2.8K, KFL3A-2.1K, KFL3A-400, KRX3, KFL3A-2.8K, KFL3A-400, KAT3, KXV3A -- View this message in context: http://n2.nabble.com/K3-T32-IOTA-Dxpedition-K3-problems-tp4813803p4813803.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] Grounding Mat Chatter
There is a lot of difference between exposing the radio, i.e. the finished product (all buttoned up), and the components INSIDE the unit, to static. The external interface signals are driven by different types of circuits where the internal logic is least resistant. Static damage can be long term, as anyone who had tracked product quality via failure returns can tell you. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Hisashi T Fujinaka Sent: Sunday, March 28, 2010 9:12 AM To: Bob Naumann Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter Being in the semiconductor business and having sat by a anti-static crusader in a previous company, I can tell you you're completely wrong about long-term damage. However, if you want to treat your rig like a normal computer and get a new one in a couple of years, you'll be fine. On Sun, 28 Mar 2010, Bob Naumann wrote: Despite this fact, my K3 survived my totally inadequate use of the pink packing material and the silvery anti-static bags also. I think this whole issue is being blown way out of proportion. If these things were indeed that static sensitive, they'd be dropping like flies all over the world on a daily basis. Can we go back to talking about how to use these radios better and stop the arguing about minutiae? 73, Bob W5OV P.S. I installed my DVR board 2 weeks ago (without an approved static mat!) and it works perfectly alone and in conjunction with N1MM. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Woolley (E.L) Sent: Sunday, March 28, 2010 2:35 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Grounding Mat Chatter Some of the anti-static bags that Elecraft use are the pink ones. Those are non-conducting and get their anti-static properties by not generating static, rather than dissipating it. They would be useless as an anti-static mat. kf4by wrote: For a grounding mat I simply used the anti-static bag the RF board + was packaged in. I clipped my wrist strap to it until the radio grew to be a + chassis. At that time I clipped the wrist strap to the chassis but kept + the mat in place. All sub-assembly components were unwrapped on the + mat. Hence everything was the same potential. -- Hisashi T Fujinaka - ht...@twofifty.com BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] T32 IOTA Dxpedition K3 problems
Hi Maury, Some things spring to mind: - Does this problem also occur in TEST mode (press and hold the MODE^ button)? - If not, it may be RF coming back to the rig. Is the rig grounded? - I've had this problem once with a multiband antenna, on a band for which the built-in ATU had problems matching the antenna. What is the SWR on 40 meters? Does this problem occur when transmitting into a dummy load? - If the problem is related to the built-in ATU, please notice that you can bypass it by pressing and holding the ATU TUNE button. Hope this can be of any help. Good luck on Caroline Island! 73, Frank PA4N At 18:59 28/03/2010, you wrote: Found on the T32 website: K3 problem. Any ideas ? 2010-03-28 08:30 This morning local time (Saturday 21:00 gmt) we started our journey to Caroline island. Estimate 5 days sailing. Almost 9,000 Qs in our logs from the 3 days on Malvern. Derek's beloved Elecraft K3 has a problem! On 40m only, the instant the rig is keyed, even at min power, it switches off as if the supply plug is disconnected. After an indeterminate delay power is restored and the rig can be used on other bands. Any ideas, please contact Maury, IZ1CRR (iz1crr @ tin.it). 73 Derek Maybe someone is able to help them. 73 de Roland, DC1RS - K3/100 #1243, KFL3A-2.8K, KFL3A-2.1K, KFL3A-400, KRX3, KFL3A-2.8K, KFL3A-400, KAT3, KXV3A -- View this message in context: http://n2.nabble.com/K3-T32-IOTA-Dxpedition-K3-problems-tp4813803p4813803.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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 unstable ssb power
Doesn´t seem to be a fix. My K3 is just about the same. Jim SM2EKM -- Juha Kasari wrote: Thanks, Ok, so it is feature! Yes I have adjust MIC and CMP just like manual, not effect. So there is no solution to problem. juha 2010/3/28 Dave, G4AON elecr...@astromag.co.uk Juha this problem is an old one. Some time back the K3 had poor ALC which allowed for overshoot on peaks, the firmware was altered to soften the ALC control with the results you (and the rest of us) experience. The power can slowly increase over the first few seconds on SSB, the effect is less if you TUNE first via the front panel button. Also, have you checked that you are driving the ALC meter reasonably well, as per the manual? For comparison, my TS-480SAT is also quite soft on ALC control with the peak power seeming to vary from one moment to the next. With some previous radios I recall seeing the peaks on an oscilloscope looking like a trimmed hedge, which is liable to create excessive IMD. I use an LP-100 peak reading power meter and the K3 is similar in it's peaks compared to my TS-480 with the same linear (Acom 1000). I don't think it's anything to worry about. 73 Dave, G4AON K3/100 #80 f/w 3.79 - I have K3 #2100. On CW power is very stable, but not on SSB. There is some change on output power, it is not constant. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using Low Pwr on K3
On Sun, 28 Mar 2010 11:00:08 -0500, john jmc...@km5ps.com wrote: I believe the K3 auto tuner uses the power you have set in the tune power setting when you activate it. Can anyone confirm that? TOM, N5GE BT 73 ES GUD LUK AR DE N5GE SK I am wanting to know if there are any other adjustments that I need to do to be able to run low pwr on my k3? For example like 1-5 watts? I am wanting to use it in the upcoming QRP contest. I have a K3 with the 100 watts option. When I tune my rig with an external tuner, say starting with 30 watts and go down to 2.2 watts on pwr setting on radio, it shows abt 6 watts on tuner. The swr meter on radio does not show anything past the 2.2 watts setting, it looks like this -- instead of 1:1-1. I have done the 5 watt calibration in the k3 utility. [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 unstable ssb power
Same here. I have to overload a little ALC and CMP and it solves almost all the problem, but it continues. Before the k3 i owned an Icom 7700 and with the correct ALC and CMP it had a very stable SSB Power. I am sure it can be solved with a firmware update. El 28/03/2010 20:30, Jan Erik Holm escribió: Doesn´t seem to be a fix. My K3 is just about the same. Jim SM2EKM -- Juha Kasari wrote: Thanks, Ok, so it is feature! Yes I have adjust MIC and CMP just like manual, not effect. So there is no solution to problem. juha 2010/3/28 Dave, G4AONelecr...@astromag.co.uk Juha this problem is an old one. Some time back the K3 had poor ALC which allowed for overshoot on peaks, the firmware was altered to soften the ALC control with the results you (and the rest of us) experience. The power can slowly increase over the first few seconds on SSB, the effect is less if you TUNE first via the front panel button. Also, have you checked that you are driving the ALC meter reasonably well, as per the manual? For comparison, my TS-480SAT is also quite soft on ALC control with the peak power seeming to vary from one moment to the next. With some previous radios I recall seeing the peaks on an oscilloscope looking like a trimmed hedge, which is liable to create excessive IMD. I use an LP-100 peak reading power meter and the K3 is similar in it's peaks compared to my TS-480 with the same linear (Acom 1000). I don't think it's anything to worry about. 73 Dave, G4AON K3/100 #80 f/w 3.79 - I have K3 #2100. On CW power is very stable, but not on SSB. There is some change on output power, it is not constant. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Rubén Navarro Huedo - EA5BZ http://www.palotes.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Using Low Pwr on K3
It only does that if you have it set to a TUN PWR if you have it set to NOR then it uses what you are currently set to... ~Brett On Sun, 2010-03-28 at 13:40 -0500, Radio Amateur N5GE wrote: On Sun, 28 Mar 2010 11:00:08 -0500, john jmc...@km5ps.com wrote: I believe the K3 auto tuner uses the power you have set in the tune power setting when you activate it. Can anyone confirm that? TOM, N5GE BT 73 ES GUD LUK AR DE N5GE SK I am wanting to know if there are any other adjustments that I need to do to be able to run low pwr on my k3? For example like 1-5 watts? I am wanting to use it in the upcoming QRP contest. I have a K3 with the 100 watts option. When I tune my rig with an external tuner, say starting with 30 watts and go down to 2.2 watts on pwr setting on radio, it shows abt 6 watts on tuner. The swr meter on radio does not show anything past the 2.2 watts setting, it looks like this -- instead of 1:1-1. I have done the 5 watt calibration in the k3 utility. [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Grounding Mat Chatter
Just checking my records here Bob. I think Obsessimg About Grounding Matts runs on a quarterly cycle around here. It seems to be winding down now, so you can expect it to start all over again around the end of June. Too bad Elecraft doesn't included an approved grounding matt with each of their kits. It would reduce traffic on the reflector by 20%! 73, Ken Alexander VE3HLS P.S. Obsessing Over Soldering Irons should be starting again soon 8-) --- On Sun, 3/28/10, Bob Naumann w...@w5ov.com wrote: If these things were indeed that static sensitive, they'd be dropping like flies all over the world on a daily basis. Can we go back to talking about how to use these radios better and stop the arguing about minutiae? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Radio Shack ESD mat doesn't meet spec
Gary Hvizdak wrote: You can read the full text of Alan's post in the Reflector archives at http://mailman.qth.net/pipermail/elecraft/2008-February/083794.html Fred wrote: Ingenious test set up Alan used to measure 1.0E10 ohms. I must be missing something in the test description. Wouldn't the very low internal resistance of the Simpson voltmeter grossly swamp the effects of the very high resistance of the mat? Even the input resistance of a VTVM would be very low compared to the resistance that is to be measured (even if measurement is only periodically made on the circuit). 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] T32 IOTA Dxpedition K3 problems
In conjunction with the things to check that Frank provided also turn on the current monitor or better yet externally monitor current. Is there a meter on your supply or something that you can use to measure that? ~Brett On Sun, 2010-03-28 at 08:59 -0800, DC1RS wrote: Found on the T32 website: K3 problem. Any ideas ? 2010-03-28 08:30 This morning local time (Saturday 21:00 gmt) we started our journey to Caroline island. Estimate 5 days sailing. Almost 9,000 Qs in our logs from the 3 days on Malvern. Derek's beloved Elecraft K3 has a problem! On 40m only, the instant the rig is keyed, even at min power, it switches off as if the supply plug is disconnected. After an indeterminate delay power is restored and the rig can be used on other bands. Any ideas, please contact Maury, IZ1CRR (iz1crr @ tin.it). 73 Derek Maybe someone is able to help them. 73 de Roland, DC1RS - K3/100 #1243, KFL3A-2.8K, KFL3A-2.1K, KFL3A-400, KRX3, KFL3A-2.8K, KFL3A-400, KAT3, KXV3A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] scopeing filters for eventual diversity receive.
Why use the S-Meter for this? Depending on where you are in that S-Unit that can make you miss the center. What you need is a relative dB measurement. Turns out that the only piece of test equipment that you need is a K3. Center the signal in the passband. Then hit disp and use VFO to get to the AFV menu item. Let it settle on a value and then turn clockwise one more click. You should then see 0dBV. Then as you adjust things you can go up and down until you find the -3.0dBV points of the filter. Or you can test to the two -6dBV points and then calculate the mean of your two points. Just as simple but less error prone. ~Brett (KC7OTG) On Sun, 2010-03-28 at 16:10 +0100, Dave, G4AON wrote: Inject a clean signal to the K3, around S5 - S7 in level, go into the CONFIG menu, adjust the filter offset (FLx FRQ) by rotating the main tuning knob until the signal drops one S point then adjust it to the other side until it again drops one S point. Set the offset to the middle of the two extremes. My 400 Hz 8 pole filter appeared to have more insertion loss than my 250 Hz 8 pole, setting the offset solved the apparent additional insertion loss. My settings are -0.07 for the 400 Hz and -0.05 for the 250 Hz. 73 Dave, G4AON K3/100 #80 --- How are you testing for offset? Sounds like I should check the offset on my 5 and 8 pole filters. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 71, Issue 40
Ed, Thanks for posting this. I, too, had been hunting for some time to figure this one out. 'configurationhmm' indeed! True it is there big as life when I looked, but just didn't see it there before because I didn't expect to see it there, I guess. --Dave, W8OV On 3/28/2010 8:52 AM, Edward Cole wrote: So I did what I always do with software, I started looking around and experimenting. Edit memory is found under configurationhmm, I wondered. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] How to disable DVR in N1MM
I have N1MM programmed to use DVR. It works well but sometimes it is better without. Is there an easy way to temporarily disable voice memories in N1MM but so they can be easily reinstated? Ignacy -- View this message in context: http://n2.nabble.com/How-to-disable-DVR-in-N1MM-tp4814856p4814856.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] How to disable DVR in N1MM
In N1MM, in ESM mode, Alt Enter will temporarily disable the DVR while writing qso data into the database and allowing you to use the microphone. Also, you can import, export, save, and retrieve both SSB and CW message sets that have been customized for specific contests and operators. Use Import/Import Function Keys or Export/Export Function Keys in the menu.. Don, N5LZ - Original Message - From: Ignacy n...@arrl.net To: elecraft@mailman.qth.net Sent: Sunday, March 28, 2010 3:15 PM Subject: [Elecraft] How to disable DVR in N1MM I have N1MM programmed to use DVR. It works well but sometimes it is better without. Is there an easy way to temporarily disable voice memories in N1MM but so they can be easily reinstated? Ignacy -- View this message in context: http://n2.nabble.com/How-to-disable-DVR-in-N1MM-tp4814856p4814856.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] scopeing filters for eventual diversity receive.
Dave, Tnx for the tip. In one K3 the 400 stayed at 0, and the 200 went from -.89 to -.84. In the other K3 the 500 went from -.75 to -.88 and the 200 went from -.94 to -.96. 73, N2TK, Tony #311 #1435 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave, G4AON Sent: Sunday, March 28, 2010 11:10 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] scopeing filters for eventual diversity receive. Inject a clean signal to the K3, around S5 - S7 in level, go into the CONFIG menu, adjust the filter offset (FLx FRQ) by rotating the main tuning knob until the signal drops one S point then adjust it to the other side until it again drops one S point. Set the offset to the middle of the two extremes. My 400 Hz 8 pole filter appeared to have more insertion loss than my 250 Hz 8 pole, setting the offset solved the apparent additional insertion loss. My settings are -0.07 for the 400 Hz and -0.05 for the 250 Hz. 73 Dave, G4AON K3/100 #80 --- How are you testing for offset? Sounds like I should check the offset on my 5 and 8 pole filters. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] (no subject)
On Mar 27, 2010, at 5:30 PM, John Ragle wrote: This is not a New Age word at all. It refers to a process which has been taken from one with */continuous/* variables (variable capacitors, roller inductors) to one in which the L,C components are fixed, but relays switch from one discrete value to another, as in most automatic antenna tuners. ATUs are not discrete (can any of them keep a secret?) but rather discretized -- big difference. I think you need a new dictionary. In the compression field, we generally used the word quantize for this process. Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] oscarv...@speedy.com.ar
Hola Don, Thank you very much my friend, is a great help, I connect it directly and operate vy good, Fl2100Z RY 17 DC 300 mA. 73, CUL LU1XS, Oscar LU1XS, Oscar - Original Message - From: Don Wilhelm w3...@embarqmail.com To: oscarv...@speedy.com.ar Cc: Elecraft@mailman.qth.net Sent: Saturday, March 27, 2010 9:40 PM Subject: Re: [Elecraft] oscarv...@speedy.com.ar Oscar, I don't know the specifics of your particular amplifier - BUT - The K3 KEYOUT can handle up to 200 volts DC (positive only) at 5 Amperes. You can easily measure the requirements of any amplifier with a DMM. First set it to read voltage and measure the open circuit voltage (to the amplifier ground) from your amplifier KeyIn (or PTT IN or whatever it is labeled). If that voltage is positive and less than 200 volts, check one passes. Then configure your DMM to read current. Connect the positive probe to the center conductor of the amplifier KeyIn jack and touch the negative probe to ground (that should operate the relay in the amplifier). If the current is less than 5 Amps and the voltage test succeeded, then the K3 can key that amplifier. 73, Don W3FPR oscarv...@speedy.com.ar wrote: I need to connect my amplifier fl2100z with K3, direct connect to key out to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.- LU1XS, Oscar E-mail clasificado por el Idenfificador de Spam Inteligente. Para modificar la categoría clasificada acceda a su webmail Este mensaje ha sido verificado por el E-mail Protegido. Antivirus actualizado en 27/03/2010 / Versión: 0.95.3/10639 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] ERR TXG when running 50 watt TX calibration procedure
Hello everyone again, Thanks for the quick replies on the K3 Utility errors I was having last night. 5W TX manual calibration worked just fine. Now I've got my KPA3 installed, and when trying to run the manual 50 watt TX calibration procedure, after going in to Tune mode (pressing and holding XMIT/TUNE for 1 second), the display shows - - in VFO A and 0W in VFO B. When I press XMIT/TUNE again to exit from Tune mode, VFO B reads ERR TXG. I have my FLTX set to FL1 ,which is the 2.7K filter, for all modes. I have run the Synthesizer calibration procedure already, as well as the Reference Oscillator calibration using Method 2 (zero-beating). Thoughts? 73 de Al, KE1FO - Check out my Amateur Radio Contesting blog at ke1fo.wordpress.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] W2 Watt Meter Interface ?
Hello, Got my new W2 watt meter kit a few days ago and got it built OK. I have the latest firmware and W2 interface software. The watt meter itself works well, but having some issues with the interface program. I am using it on a Vista (32) laptop (dual-core with 2 G RAM). It has no RS-232 port so I have to use a USB / serial cable. It was one I already had and not sure the brand. First, it takes a long time to open the program (2 - 3 mins). I am able to finally connect to the W2 after I select the right comm port. The Interface program works and does show my power and SWR, but it also at times shows my 100 watt FT-840 to put out a peak power of 200 to 300 watts. The actual W2 LED's always show the correct power (no 300 watt peaks). Also at times the software just goes crazy and I have to restart it. I have tried all the different settings I could find and it still shows those 300 peaks at times. I have the W2 plugged into a USB port by itself (not on a USB hub). Any suggestions on what I can do to get the interface to work better? Thanks, Bill - KE5YA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Radio Shack ESD mat doesn't meet spec
I must be missing something in the test description. Wouldn't the very low internal resistance of the Simpson voltmeter grossly swamp the effects of the very high resistance of the mat? Yes. What is happening is that the capacitor is discharging through the meter in a millisecond or so. The meter needle jumps up only a small amount because of the damping in the meter movement. The only reason that technique works is that the absolute meter reading is not important, only the ratio of two readings. The meter jumped to about 1/10 scale when the capacitor was charged to 15V. So a few minutes later when the meter jumped to 1/20V, I deduced that the capacitor voltage must have been 7.5V. Alan N1AL On Sun, 2010-03-28 at 13:45 -0500, Mike Morrow wrote: Gary Hvizdak wrote: You can read the full text of Alan's post in the Reflector archives at http://mailman.qth.net/pipermail/elecraft/2008-February/083794.html Fred wrote: Ingenious test set up Alan used to measure 1.0E10 ohms. I must be missing something in the test description. Wouldn't the very low internal resistance of the Simpson voltmeter grossly swamp the effects of the very high resistance of the mat? Even the input resistance of a VTVM would be very low compared to the resistance that is to be measured (even if measurement is only periodically made on the circuit). 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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft CW Net Report for March 28th and 29th, 2010
Good Evening, It took a while after the second net for my hearing to come back! A couple stations were so loud they were extremely difficult to copy. The front end of the rig was getting hammered as was my hearing. They could have turned down to 5 watts or less and been much easier to copy. The QRN was bad enough but the howling I was getting for CW tones was painful indeed. At those times I want to rip off the headphones and put a pillow over them to make copy easier! Moving the forty meter net later allowed a few more check ins but it was still light here when I finished. Much better than last week though so I will keep them at these times for a while. Weather reports were mostly sunny around the stations worked. The snow has dropped off my forecast but I did have to rescue some early daffodils from an early demise. They are sitting behind me in a glass lighting up the room. Most of them are King Alfreds which are very large. When I brought them in I thought I saw a spider in one. On closer inspection I found it was a bee. I took him outside and told him it was better for both of us if we did not get too close. He agreed and sat on my potted lilac. On 14050.5 kHz at 2200z: K1THP - Dave - CT - K3 - 686 NO8V - John - MI - K3 - 820 K9DMV - Joe - TX - K2 - 5628 W0CZ - Ken - ND - K3 - 457 AB9V - Mike - IN - K3 - 398** QNI # 290 ** N0AR - Scott - MN - K2 - 4866 ** QNI # 240 ** W8OV - Dave - TX - K3 - 3139 WC7S - Dale - WY - K2 - 4360 QNI # 45 !!! W0NTA - Dick - CO - K1 - 446 N7KRT - Jeff - TX - K2 - 5471 QNI # 80 !!! W0RSR - Mike - CO - K2 - 5767 WB3AAL - Ron - PA - K2 - 1392 On 7045 Khz at z: NO8V - John - MI - K3 - 820 W0CZ - Ken - ND - K3 - 457 AB9V - Mike - IN - K3 - 398 N0TA - John - CO - K3 - 994 K6PJV - Dale - CA - K3 - 1183 W0RSR - Mike - CO - K2 - 5767 K1THP - Dave - CT - K3 - 686 N0AR - Scott - MN - K2 - 4866 WB3AAL - Ron - PA - K2 - 1392 QNI # 70 !!! W7MBR - David - UT N7KRT - Jeff - TX - K2 - 5471 K0DTJ - Brian - CA Hopefully I got the numbers correct. If there are errors please email me with the corrections. On my way home Friday I noticed a trillium just a few hundred yards outside of Buxton. I thought I was mistaken so kept looking and saw another about a mile further along. They are not blooming up here yet but in two or three weeks they should begin. I am fairly sure they are the last of the neotenous flowers to bloom. It's not like we have much of a changing canopy up here but I don't think they realize that :) In Wisconsin the May apples would blast out of the ground and bloom quickly before the maple/basswood cover would block the light for the entire year. Here the only deciduous tree of any consequence is alder but the hemlock and redcedar push them out by their acidic detritus and dense cover. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Bare Foot
Re: Effectiveness of going Bare Foot? I'm writing in search of technical opinions. Am I in the right place? ; ) I am _not_ writing about running a rig barefoot, without an amplifier. I am writing about building my K2 and add-on kits _with one foot bare_ -- bare foot skin in direct contact with a linoleum-tile floor, and _never while on a carpet_. I do this in addition to having an anti-static mat and a wristband attached thereto. My questions are the following: Does the bare foot on the bare floor provide any protection at all? Does it provide protection without a mat? Does a bare foot on a non-carpeted floor add to the protection provided by an anti-static mat. I first began employing this practice in the 1980's, when I was building and frequently working on my own desktop PC clones. 73 Sam KN7C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html