Re: [Elecraft] Dissable AM
One thing that seems to work fairly well is that if you have the 2nd RX, you can have both on AM, but shift the 2nd RX by around 2.7kHz or 2.8kHz with respect to the 1st RX. In effect, it gives you AM bandwidth of about 5.6kHz. Of course that means you don't get diversity RX. 73 de David M0DHO At 04:00 04/05/2011, Lu Romero wrote: George: How do you monitor a mode that you dont have a filter for? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Rose's Covers Cases Gift Certificate
Hi All, I have found Rose's web page but get lost in the amount of detail. I can not find the prices and am put off because of plethora of information which to my old mind lacks organization. How does one get to the prices? 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Champine Sent: 03 May 2011 23:29 To: Frank Westphal Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Rose's Covers Cases Gift Certificate Hey Frank. Can you or someone please point me in the direction of Rose's web page? I didn't know there was someone who made them and it may be something I would want to look in to. I have a K1 and I am building a K2 and would like to see what they have to offer. Thanks so much. 73 de W2EEC Eric __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Rose's Covers Cases Gift Certificate
There is another maker of dust covers for Elecraft rigs, Doug. They are at http://www.radiodustcovers.com/ELECRAFT.html I have these covers on my K1, K2 and K3 and am very pleased with them. 73 de David G4DMP In a recent message, Doug Turnbull turnb...@net1.ie writes I have found Rose's web page but get lost in the amount of detail. I can not find the prices and am put off because of plethora of information which to my old mind lacks organization. How does one get to the prices? -- + - - - - - - - - - - - - - - - - + | 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] P3 - Appearent P3 Anomoly
Alan Bloom wrote: The paint must also be removed from the sheet metal around each of the points where it attaches to the 2D fasteners. My recent P3 metalwork had much more paint underneath the spray masking tape than the 3-y-o K3 had. It needed a vicious stainless steel scratch pen to clean the P3 panels down to bare bright metal around the fixing points. Also make sure all the chassis screws are tight. This is very important in Elecraft's 'flat pack' style of construction. With no internal chassis and no continuous edge-to-edge bonding between panels, RF shielding and grounding is *critically* dependent on that relatively small number of panel-to-panel fixings. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Pleased...P3 No. 1327...
From the mobile On May 4, 2011, at 1:17 AM, Joe Subich, W4TV li...@subich.com wrote: I'm surprised that RIGrunner or MFJ or somebody doesn't make a 12V distribution system with a remote on/off control that could be connected to the K3 switched 12V output. It's actually a piece of cake. If power for the control relay came from Actually mfi has avstrip that has a __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [KPA500]KPA500 power cord question
I have been using an ALS-600, the 600-watt Ameritron solid state amp, for two years. My shack is wired for 120 volts, 20 amps, 2 circuits. The voltage from the power supply drops only slightly when transmitting, almost surely from internal factors, not house wiring. The AC mains voltage does not drop. I have never tripped a breaker. The Elecraft Amp is probably more power efficient than the ALS-600 with its sophisticated power supply. I'd worry about something else. FWIW. Monty K2DLJ The important point is whether the voltage to the finals at full output is as different when the KPA500 is supplied by 240 or 120V mains. I believe the answer is no. AFAIK, the KPA500, and it's power supply, was designed and tested to meet all of its performance specifications with either a 120V or 240V mains supply. - Ron D'Eau Claire No. The KPA500 peak demand is less from your 120 volt outlet than most household vacuum cleaners or window air conditioners. And, unless you are running a full-carrier mode, the average demand by your KPA500 is far below the peak. - Joe Subich __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Pleased...P3 No. 1327...
From the mobile On May 4, 2011, at 1:17 AM, Joe Subich, W4TV li...@subich.com wrote: I'm surprised that RIGrunner or MFJ or somebody doesn't make a 12V distribution system with a remote on/off control that could be connected to the K3 switched 12V output. It's actually a piece of cake. If power for the control relay came Actually rig runner does have a strip with one of the outputs monitored for currentI ha ve one in the car, and turn on one radio which triggers the rest of the outlets...one could just switch a small relay with a small load on the k3 dc out...that would fire off the rig runner. Bill/3 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Rose's Covers Cases Gift Certificate
The web site is: http://www.smugmug.com/gallery/7058736_hZbo4 Look at the top of the page where it clearly says: Rose Kopp N7HKW, makes beautiful covers and carrying cases for Elecraft radios and related equipment. Email Rose at elecraftcov...@gmail.com for details and pricing. Tel: 406-560-3738 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Turnbull Sent: Wednesday, May 04, 2011 3:33 AM To: 'Eric Champine'; 'Frank Westphal' Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Rose's Covers Cases Gift Certificate Hi All, I have found Rose's web page but get lost in the amount of detail. I can not find the prices and am put off because of plethora of information which to my old mind lacks organization. How does one get to the prices? 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Champine Sent: 03 May 2011 23:29 To: Frank Westphal Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Rose's Covers Cases Gift Certificate Hey Frank. Can you or someone please point me in the direction of Rose's web page? I didn't know there was someone who made them and it may be something I would want to look in to. I have a K1 and I am building a K2 and would like to see what they have to offer. Thanks so much. 73 de W2EEC Eric __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
Re: [Elecraft] Pleased...P3 No. 1327...
An external relay (or FET) switch box controlled by the K3 is certainly the way to go, and is the simplest project imaginable. The builder can configure it for their choice of DC connectors. I built one here several months ago when I first got my P3. In addition to providing as much current for accessories as you desire, a single switch on the box also allows for manual ON or OFF of the accessories in addition to automatic control via the K3. In my case, the switched DC power goes to a strip of PowerPole outlets. 73 Craig AC0DS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [KPA500]KPA500 power cord question
If you have a dedicated 120V circuit for your ham shack and only run one transceiver and one medium power amp you will probably be OK. The trouble comes from using a house circuit that already has other users and was designed for those users. Many house circuits use #14 wire and are good for 15 amps max. You may already have the lights in the room and a few clocks and other things. Add on a TV set and your wife's hair dryer and you are in trouble, so you need to do a load analysis. If you are going to run another circuit, it might as well be 220, or run two more circuits, a 110 and a 220. But, you are never safe to just plug in several medium to high current loads without doing at least an informal load analysis. If you have too many loads on a circuit you will soon lose your claim to Never popping a breaker. Willis 'Cookie' Cooke K5EWJ From: Monty Shultes mon...@mindspring.com To: Ron D'Eau Claire r...@cobi.biz Cc: elecraft@mailman.qth.net Elecraft@mailman.qth.net Sent: Wed, May 4, 2011 5:49:25 AM Subject: Re: [Elecraft] [KPA500]KPA500 power cord question I have been using an ALS-600, the 600-watt Ameritron solid state amp, for two years. My shack is wired for 120 volts, 20 amps, 2 circuits. The voltage from the power supply drops only slightly when transmitting, almost surely from internal factors, not house wiring. The AC mains voltage does not drop. I have never tripped a breaker. The Elecraft Amp is probably more power efficient than the ALS-600 with its sophisticated power supply. I'd worry about something else. FWIW. Monty K2DLJ The important point is whether the voltage to the finals at full output is as different when the KPA500 is supplied by 240 or 120V mains. I believe the answer is no. AFAIK, the KPA500, and it's power supply, was designed and tested to meet all of its performance specifications with either a 120V or 240V mains supply. - Ron D'Eau Claire No. The KPA500 peak demand is less from your 120 volt outlet than most household vacuum cleaners or window air conditioners. And, unless you are running a full-carrier mode, the average demand by your KPA500 is far below the peak. - Joe Subich __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA-500
Any news of KPA-500 assy.manual. 73,Nandu K3 # 282 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
When I was a teenage novice in the early 1970's, armed only with a Heathkit HW-16, 15 meters became my favorite band. It was a reliable source of DX contacts even when my entire antenna system was a multiband inverted-V a few feet off the roof. 15 m, as well as the other high HF bands (12 m, 10 m), can be sparsely populated at times, even when they're open. In the old days that meant tuning the VFO up and down, searching endlessly. But the K2 and K3 have a SCAN feature that lets the radio do the work, while you answer email, work on homebrew projects, clean up the shack, etc. I was reminded of this about half an hour ago. A quick check of 15 m revealed no signals, so I set up a background (muted) scan from 21.000-21.060 on the K3. A few minutes later the scan stopped at 21.026, where PJ2/KE1B was calling CQ. Since he had just started calling, there was no pileup, and I made the QSO on one call. For scanning instructions, see page 40 of the K3 owner's manual or page 103 of the K2 manual. Let me know what pops up. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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_K3] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
That's great and I like the idea, but with a variable S7 to S9 noise floor here, I find the K3 stops all the time - would you expect that or am I doing something wrong? 73 de M0XDF, K3 #174, P3 #108 -- For all our conceits about being the center of the universe, we live in a routine planet of a humdrum star stuck away in an obscure corner ... on an unexceptional galaxy which is one of about 100 billion galaxies. ... That is the fundamental fact of the universe we inhabit, and it is very good for us to understand that. -Carl Sagan, astronomer and writer (1934-1996) On 4 May 2011, at 16:00, Wayne Burdick wrote: When I was a teenage novice in the early 1970's, armed only with a Heathkit HW-16, 15 meters became my favorite band. It was a reliable source of DX contacts even when my entire antenna system was a multiband inverted-V a few feet off the roof. 15 m, as well as the other high HF bands (12 m, 10 m), can be sparsely populated at times, even when they're open. In the old days that meant tuning the VFO up and down, searching endlessly. But the K2 and K3 have a SCAN feature that lets the radio do the work, while you answer email, work on homebrew projects, clean up the shack, etc. I was reminded of this about half an hour ago. A quick check of 15 m revealed no signals, so I set up a background (muted) scan from 21.000-21.060 on the K3. A few minutes later the scan stopped at 21.026, where PJ2/KE1B was calling CQ. Since he had just started calling, there was no pileup, and I made the QSO on one call. For scanning instructions, see page 40 of the K3 owner's manual or page 103 of the K2 manual. Let me know what pops up. 73, Wayne N6KR __._,_.___ Reply to sender | Reply to group | Reply via web post | Start a New Topic Messages in this topic (1) RECENT ACTIVITY: New Members 3 New Files 2 Visit Your Group Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use . __,_._,___ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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_K3] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
If there's a high noise floor, try the following, in this order: - Turn off the preamp, and possibly even turn on the attenuator (SCAN is pretty sensitive, so it will stop on real signals above the noise floor even with the attenuator on) - Narrow the filter bandwidth and slow down the scan rate accordingly (example: If you set WIDTH to 100 Hz, set RATE to 10 Hz rather than 50 Hz so you won't miss as many real signals) - Try backing down RF GAIN a bit - Use a lower-noise antenna 73, Wayne N6KR On May 4, 2011, at 8:36 AM, David Ferrington, M0XDF wrote: That's great and I like the idea, but with a variable S7 to S9 noise floor here, I find the K3 stops all the time - would you expect that or am I doing something wrong? 73 de M0XDF, K3 #174, P3 #108 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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_K3] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
Move to the countryside with no urban noise - go live in the middle of texas :-) Thanks Wayne, very good things to try there. 73 de M0XDF, K3 #174, P3 #108 -- Two things are infinite, the universe and human stupidity. But I'm not so sure about the universe. -- Albert Einstein. On 4 May 2011, at 16:42, Wayne Burdick wrote: If there's a high noise floor, try the following, in this order: - Turn off the preamp, and possibly even turn on the attenuator (SCAN is pretty sensitive, so it will stop on real signals above the noise floor even with the attenuator on) - Narrow the filter bandwidth and slow down the scan rate accordingly (example: If you set WIDTH to 100 Hz, set RATE to 10 Hz rather than 50 Hz so you won't miss as many real signals) - Try backing down RF GAIN a bit - Use a lower-noise antenna 73, Wayne N6KR On May 4, 2011, at 8:36 AM, David Ferrington, M0XDF wrote: That's great and I like the idea, but with a variable S7 to S9 noise floor here, I find the K3 stops all the time - would you expect that or am I doing something wrong? 73 de M0XDF, K3 #174, P3 #108 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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_K3] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
You could use the SQL control to set the threshold up to the noise floor. I use scan all the time with an S4 noise level, and the SQL helps a lot. matt W6NIA On Wed, 04 May 2011 16:36:02 +0100, you wrote: That's great and I like the idea, but with a variable S7 to S9 noise floor here, I find the K3 stops all the time - would you expect that or am I doing something wrong? 73 de M0XDF, K3 #174, P3 #108 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] ...in the middle of Texas...
Ho, David... Living in the middle of Texas -- LOFL or IASMBG (I almost swallowed my bubble-gum -- what you might call a gob-stopper). Actually, I am not sure that the middle of Texas is quiet...lots of dry wind to generate static charge/discharge...I suggest Ruby, Alaska, or 40-Mile, Yukon Territory for real sub-urban quiet. Here in the wilds of western Massachusetts we also have very low noise floors on most bands. The problem is, I am in a receiving hole inside the crater left by the ancient (now dry) Lake Hitchcock, and the quiet is achieved thusly. One might as well terminate the antenna terminals of the XCVR with a dummy load, or bury the antenna in the soil. The latter two would obviate any BCI problems as well. I love this reflector! It is as good as SNL or The Goon Show. Propagation always seems 100%. 73, John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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_K3] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
Had forgotten that K3 had SQL - good point 73 de M0XDF, K3 #174, P3 #108 -- Do not pray for tasks equal to your powers; pray for powers equal to your tasks. -Phillips Brooks, bishop and orator (1835-1893) On 4 May 2011, at 17:00, Matt Zilmer wrote: You could use the SQL control to set the threshold up to the noise floor. I use scan all the time with an S4 noise level, and the SQL helps a lot. matt W6NIA On Wed, 04 May 2011 16:36:02 +0100, you wrote: That's great and I like the idea, but with a variable S7 to S9 noise floor here, I find the K3 stops all the time - would you expect that or am I doing something wrong? 73 de M0XDF, K3 #174, P3 #108 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - Which signal's level does the K2's controller watch when scanning?
Wayne, Which signal's level does the K2's controller watch when scanning? 73, Wayne (still studying for the test) On 05/04/11 08:00, Wayne Burdick wrote: ...But the K2 and K3 have a SCAN feature that lets the radio do the work, while you answer email, work on homebrew projects, clean up the shack, etc. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - Which signal's level does the K2's controller watch when scanning?
The V_SMTR line on the control board, which is still live even when the receiver is muted. Good luck with the test! 73, Wayne N6KR Wayne Conrad wrote: Which signal's level does the K2's controller watch when scanning? 73, Wayne (still studying for the test) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Pleased...P3 No. 1327...
Or you can do it by scrounging. :) At work, we had 4 Furman MP-15 remote switched power relay outlets. We obsoleted them when we did a redesign of our attraction, so, as usual, I had an application for them in mind, and rescued them from the dumpster in fine Ham fashion. These are 15 amp remote switched dual outlet power boxes used to sequence high power audio amplifiers to protect the mains from inrush trips. Its a simple matter to take the output of my 12v power supply and route it to the power sensor on the MP-15. When the main power supply is switched on, the 12v activates the power to both the outlets via a relay. for accessory power, like my MicroKeyers, speakers and the like, I found a very small 15 amp switching 12v supply (at CompUSA - Labeled ULTRA PS-15 - $19.95) in a rather sexy back plastic case with foot stands. It has 8 12v outlets using barrel sockets. It comes with 8 variable length barrel to barrel cables, too. It is amazingly quiet from switching noise, I cant find any RF from it. This little item is plugged into the MP-15 and replaces all the wall warts in my station. When I power my main 12v Astron PS, it triggers the MP-15, which turns everything in the shack on except the linear and the K3 at once. The only negative are the incredibly bright purple LED's on each of the Ultra's active 12v outlets... A short length of elecrtrical tape fixes that... The MP-15 is quite expensive new, but they can be found on Ebay. But now I have three spares, just waiting for future applications :) I can add another one on the second outlet to automatically turn on my amplifier... Maybe someday when I get a round to-it... :) -lu- -- Message: 8 Date: Tue, 03 May 2011 21:54:26 -0700 From: Alan Bloom n...@sonic.net Subject: Re: [Elecraft] Pleased...P3 No. 1327... To: d...@w3fpr.com Cc: elecraft@mailman.qth.net Message-ID: 1304484866.1445.26.camel@ulinux-desktop Content-Type: text/plain; charset=UTF-8 I'm surprised that RIGrunner or MFJ or somebody doesn't make a 12V distribution system with a remote on/off control that could be connected to the K3 switched 12V output. Sounds like an opportunity: Someone on the list should market one. Or at least design one and write a QST article. Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KPA500]KPA500 power cord question
I ran a Swan Mark-III (2x3-400z) PS on 120vac in a bedroom (My ham shack) running 2500vdc @ 400mA (1000VA) to run my 2m-8877 to 600w output. That PS drew at least as much as the KPA500 will. I only saw a slight momentary flicker in the room lights when I switched to transmit (I am transmitting key-down for one minute using digital modes). I only ran 240vac when I upgraded to a 4kV@1amp HVPS. I ran 35-foot of #8-4 wiring to a small breaker box with one 20A 240v breaker and two 20A 120v breakers. That provided some separate circuits for my low-voltage PS so that the rest of the ham shack could run on the house circuits. Now I am adding a 3500VA 50vdc PS for 6m-QRO, so will have to add another 240v outlet. I will not add any breakers since I will not run both 6m-QRO and 2m-QRO at the same time. The HP switching PS (50v@50A) only cost me $18 on e-bay! It will supply a Harris Platinum 1100w SSPA (16 LDMOS transistors) that is a pull from a chan-2 TV station. They were used as drivers for 50kW transmitters! -- Message: 1 Date: Tue, 03 May 2011 19:32:33 -0700 From: Jim Brown j...@audiosystemsgroup.com Subject: Re: [Elecraft] [KPA500]KPA500 power cord question To: elecraft@mailman.qth.net Message-ID: 4dc0bac1.60...@audiosystemsgroup.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 5/3/2011 11:20 AM, iain macdonnell - N6ML wrote: I'd be interested to hear about benefits (if any) of running the KPA-500 on 220V vs 110V (in the US) The only good reason I can think of is if the 120V circuit that runs your ham shack would be overloaded by adding the amp. That's a rather unlikely scenario. A single 15A circuit is good for 1,800 watts. The KPA500 specs say it needs 1,000 VA, which is 8.3A. That leaves 6.7A (800W) to run the rest of your ham gear. Because most power amps, including the KPA500, get to full power with less than 50 watts, you'll only need about 2A at 120V for the transceiver. Even with SO2R, you're only transmitting with one radio at a time, and transceivers don't burn my power in RX mode (especially Elecraft radios). The one good reason for having 240V in your shack if if you think you might want to run an amp rated at 1kW or higher, or if you might need a space heater. If I were pulling new wiring into a ham shack, I would install one 20A 120V circuit and one 20A 240V circuit for ham gear (and computer gear) only. I would put LOTS of outlets on the 120V circuit, and I would put them in steel backboxes that are all bonded together, and to the backbox for the 240V outlet. If I thought the station might someday want to do multi-two contesting, I would double up both circuits, but I would still keep them all bonded together. 73, Jim K9YC 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kW?, 144-1.4kw, 432-100w, 1296-testing*, 3400-? 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
Re: [Elecraft] Rose's Covers Cases Gift Certificate
Bob and all, Thank you, Rose saw my e-mail and wrote me so I am now in e-mail contact with her and will probably order both a case and cover. Thank all of you who steered me in the right direction. 73 Doug EI2CN -Original Message- From: Bob Naumann [mailto:w...@w5ov.com] Sent: 04 May 2011 13:20 To: 'Doug Turnbull'; 'Eric Champine'; 'Frank Westphal' Cc: Elecraft@mailman.qth.net Subject: RE: [Elecraft] Rose's Covers Cases Gift Certificate The web site is: http://www.smugmug.com/gallery/7058736_hZbo4 Look at the top of the page where it clearly says: Rose Kopp N7HKW, makes beautiful covers and carrying cases for Elecraft radios and related equipment. Email Rose at elecraftcov...@gmail.com for details and pricing. Tel: 406-560-3738 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Turnbull Sent: Wednesday, May 04, 2011 3:33 AM To: 'Eric Champine'; 'Frank Westphal' Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Rose's Covers Cases Gift Certificate Hi All, I have found Rose's web page but get lost in the amount of detail. I can not find the prices and am put off because of plethora of information which to my old mind lacks organization. How does one get to the prices? 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Champine Sent: 03 May 2011 23:29 To: Frank Westphal Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Rose's Covers Cases Gift Certificate Hey Frank. Can you or someone please point me in the direction of Rose's web page? I didn't know there was someone who made them and it may be something I would want to look in to. I have a K1 and I am building a K2 and would like to see what they have to offer. Thanks so much. 73 de W2EEC Eric __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Running Duplex with the sub-Rx
The K3 is a great radio, we all agree, and it is finding lots of enthusiasts for use on VHF/UHF. But for one very popular use, it is not able to fulfill is as a satellite radio. For successful use on the ham sats one needs to have full duplex operation. This usually is in the form of cross-band duplex (e.g. transmit on 2m and receive on 70cm). One can set up a dual-receiver K3 to be connected to a 2m transverter for transmitting and a 70cm converter or transverter for receiving using the aux antenna and sub-Rx, but the K3 cannot support duplex at the SDR level of the radio, as I understand it. Well, I have an idea that might work if one can keep the sub-Rx 1st IF operational during transmit mode. If one took the first IF of the sub-Rx to an external SDR for demod it seems duplex operation could be done. The VFO's would be run un-linked. This question/suggestion is submitted to Wayne and crew for comment. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kW?, 144-1.4kw, 432-100w, 1296-testing*, 3400-? 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
Re: [Elecraft] K2/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
Page 40 is the assignment tonight. :-) I did not know this existed. Don KD8NNU On Wed, May 4, 2011 at 11:00 AM, Wayne Burdick wrote: When I was a teenage novice in the early 1970's, armed only with a Heathkit HW-16, 15 meters became my favorite band. It was a reliable source of DX contacts even when my entire antenna system was a multiband inverted-V a few feet off the roof. 15 m, as well as the other high HF bands (12 m, 10 m), can be sparsely populated at times, even when they're open. In the old days that meant tuning the VFO up and down, searching endlessly. But the K2 and K3 have a SCAN feature that lets the radio do the work, while you answer email, work on homebrew projects, clean up the shack, etc. I was reminded of this about half an hour ago. A quick check of 15 m revealed no signals, so I set up a background (muted) scan from 21.000-21.060 on the K3. A few minutes later the scan stopped at 21.026, where PJ2/KE1B was calling CQ. Since he had just started calling, there was no pileup, and I made the QSO on one call. For scanning instructions, see page 40 of the K3 owner's manual or page 103 of the K2 manual. Let me know what pops up. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K144RFLK Offsets?
I just installed the K144RFLK in my K3. I have the .5 ppm oven controlled crystal in my radio. When I calculate the new offsets, I ended up with a 0.104 Hz offset for the 144-146 range and a 1.4 Hz offset for the 146-148 range. Following the instructions and converting these amounts to KHz, I ended up with no offsets to enter into the radio, as the resulting amounts were smaller than the allowable significant digits for the XVn OFFSET settings. I set the OFS to 0 for both of them. Is this correct? It would seem to me that if you have the more accurate reference oscillator crystal in the radio, that you could just change the manual to enter a zero for both offsets. Mark Goecke KC5VF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - Which signal's level does the K2's controller watch when scanning?
Just to see that I'm reading the schematic correctly: V_SMTR is in the IF stage, after AGC, so the crystal filters are in effect when scanning, but the audio filter (KAF2/KDSP2) is not part of the loud enough to stop scanning circuit. It looks like the audio filter, mute, and audio amplifier are pretty much the only thing that's out of the loop for scanning. That means, for example, that twisting the audio gain knob will not affect scanning. Have I got it right? 73, Wayne Conrad (studying like mad) On 05/04/11 09:55, Wayne Burdick wrote: The V_SMTR line on the control board, which is still live even when the receiver is muted. Wayne Conrad wrote: Which signal's level does the K2's controller watch when scanning? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - QST Article
I have been looking on the web for an article out of QST. This article was published in the last two years or so... The article was about an indicator for tuning. The author used a wheatstone bridge. He dumped a lot of power into a dumby load from the xmiter so tehre was just a few microwatts going into the wheatstone bridge. He then could tune the antenna tuner without transmitting on the air. I think it was the primary article in the QST Lee Buller K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [KPA500]KPA500 power cord question
I will add a few comments to Cookie's good advice. If you are wondering if your ham shack is wired with 15 or 20 amp service here is an easy way to tell. There are two common types of grounded duplex receptacles available in the USA. The NEMA 5-15R type has two parallel blades with the U ground pin on top and the right hand neutral blade is somewhat larger. This receptacle is rated for 15 amps and is normally wired with 14 gage wire. The NEMA 5-20R receptacle looks much the same except the right hand blade is T shaped (the T is laying down) and should be wired with 12 gage wire. NEMA 5-20R plugs are usually listed as 'Industrial' and therefore not necessarily found in the same electrical section of Home Depot. If you are installing a new circuit 240 VAC is preferable. The current is less and therefore the copper losses lower and everything, including your power supply, runs cooler. de Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of WILLIS COOKE Sent: Wednesday, May 04, 2011 5:29 AM To: Monty Shultes; Ron D'Eau Claire Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] [KPA500]KPA500 power cord question If you have a dedicated 120V circuit for your ham shack and only run one transceiver and one medium power amp you will probably be OK. The trouble comes from using a house circuit that already has other users and was designed for those users. Many house circuits use #14 wire and are good for 15 amps max. You may already have the lights in the room and a few clocks and other things. Add on a TV set and your wife's hair dryer and you are in trouble, so you need to do a load analysis. If you are going to run another circuit, it might as well be 220, or run two more circuits, a 110 and a 220. But, you are never safe to just plug in several medium to high current loads without doing at least an informal load analysis. If you have too many loads on a circuit you will soon lose your claim to Never popping a breaker. Willis 'Cookie' Cooke K5EWJ From: Monty Shultes mon...@mindspring.com To: Ron D'Eau Claire r...@cobi.biz Cc: elecraft@mailman.qth.net Elecraft@mailman.qth.net Sent: Wed, May 4, 2011 5:49:25 AM Subject: Re: [Elecraft] [KPA500]KPA500 power cord question I have been using an ALS-600, the 600-watt Ameritron solid state amp, for two years. My shack is wired for 120 volts, 20 amps, 2 circuits. The voltage from the power supply drops only slightly when transmitting, almost surely from internal factors, not house wiring. The AC mains voltage does not drop. I have never tripped a breaker. The Elecraft Amp is probably more power efficient than the ALS-600 with its sophisticated power supply. I'd worry about something else. FWIW. Monty K2DLJ The important point is whether the voltage to the finals at full output is as different when the KPA500 is supplied by 240 or 120V mains. I believe the answer is no. AFAIK, the KPA500, and it's power supply, was designed and tested to meet all of its performance specifications with either a 120V or 240V mains supply. - Ron D'Eau Claire No. The KPA500 peak demand is less from your 120 volt outlet than most household vacuum cleaners or window air conditioners. And, unless you are running a full-carrier mode, the average demand by your KPA500 is far below the peak. - Joe Subich __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
Re: [Elecraft] [KPA500]KPA500 power cord question
Gentlemen: I appreciate all the input, but the question has been answered. To clarify, this is a modification, reconfiguration of an existing shack. There's power there, 115V and 220V. There's an opportunity for a 2nd 220V line. I'm going to do that, I needed to know what type of power cord was needed. Now I got that and it's ordered. Thank you all for your input. de K2GN - Larry - http://k2gn.com K3 S/N - 3278P3 S/N - 51 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/K3 Operating Tip: Using SCAN to keep an eye on your favorite (too-quiet) band
Wayne, I often use the K3 scanner to listen for band activity (I wrote the SCANNOW key macro that scans immediately the range of freqs from VFO-A thru VFO-B). The scanner is great for keeping an eye (ear?) on the band while doing other things around the shack or, in my case, while busy with something at the other end of the house and listening via intercom. One thing that I often thought might be useful for this remote scanner monitoring would be the ability to set a specific dwell time. For example: once the scanner pauses on a signal it would automatically resume scanning after a user-settable amount of time. As it is now, the scan will sometimes pause too briefly or get hung up for too long on a particular signal; would be nice if I could set it for, say, exactly 10 seconds (or whatever amount) per hit. 73, Drew AF2Z On Wed, 04 May 2011 08:00:51 -0700, you wrote: When I was a teenage novice in the early 1970's, armed only with a Heathkit HW-16, 15 meters became my favorite band. It was a reliable source of DX contacts even when my entire antenna system was a multiband inverted-V a few feet off the roof. 15 m, as well as the other high HF bands (12 m, 10 m), can be sparsely populated at times, even when they're open. In the old days that meant tuning the VFO up and down, searching endlessly. But the K2 and K3 have a SCAN feature that lets the radio do the work, while you answer email, work on homebrew projects, clean up the shack, etc. I was reminded of this about half an hour ago. A quick check of 15 m revealed no signals, so I set up a background (muted) scan from 21.000-21.060 on the K3. A few minutes later the scan stopped at 21.026, where PJ2/KE1B was calling CQ. Since he had just started calling, there was no pileup, and I made the QSO on one call. For scanning instructions, see page 40 of the K3 owner's manual or page 103 of the K2 manual. Let me know what pops up. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - QST Article
An ARRL website search for wheatstone bridge tuner finds: Oct 2004 - QST (Pg. 60) The Wheatstone Bridge (sidebar to An SWR Indicator for the MFJ-902 Antenna Tuner) (Workbench) Author: Ceccherelli, John, N2XE http://p1k.arrl.org/pubs_archive/104134 Unfortunately the PDF (you have to be an ARRL member to download it) only includes the last page of the article. You could report that at: http://www.arrl.org/pubindex/errors/index/104134 ... if it's the right article... 73, ~iain / N6ML On Wed, May 4, 2011 at 5:50 PM, Lee Buller k...@swbell.net wrote: I have been looking on the web for an article out of QST. This article was published in the last two years or so... The article was about an indicator for tuning. The author used a wheatstone bridge. He dumped a lot of power into a dumby load from the xmiter so tehre was just a few microwatts going into the wheatstone bridge. He then could tune the antenna tuner without transmitting on the air. I think it was the primary article in the QST Lee Buller K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - Which signal's level does the K2's controller watch when scanning?
Yes. 73, Wayne N6KR On May 4, 2011, at 10:36 AM, Wayne Conrad wrote: Just to see that I'm reading the schematic correctly: V_SMTR is in the IF stage, after AGC, so the crystal filters are in effect when scanning, but the audio filter (KAF2/KDSP2) is not part of the loud enough to stop scanning circuit. It looks like the audio filter, mute, and audio amplifier are pretty much the only thing that's out of the loop for scanning. That means, for example, that twisting the audio gain knob will not affect scanning. Have I got it right? 73, Wayne Conrad (studying like mad) On 05/04/11 09:55, Wayne Burdick wrote: The V_SMTR line on the control board, which is still live even when the receiver is muted. Wayne Conrad wrote: Which signal's level does the K2's controller watch when scanning? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] C9 on KIO3
Hi, I knocked out C9, a big capacitor (compared to the other SMDs) while reistalling the subRX. It got hooked by the coax from the Aux antenna. My question is, what does C9 do, and what would happen without it ? Also any suggestions ? I never did SMD soldering, and also this one seems tricky. It still hangs in its [upper] side connection, but it seems as the second connection is underneath it ? Thank you. Adi, 2E0TTX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Weller Repair and Rebate Promotion
Weller North America Mail-In Rebate Promotion. Choose from Weller's five best selling products, and receive a mail-in rebate directly from Weller! WES51, WESD51, and WLC100 soldering stations; WSA350 Smoke Absorber; and 170M lead cutter. Rebate offer valid through July 31, 2011 Download the Weller North America Rebate Form, here: http://www.cooperhandtools.com/weller/documents/WellerNationalRebate2011.pdf Do you have a broken Weller iron or station that you have held on on repairing? Just mention promotion code WXR with your next repair order and you will receive a 10% to 25% discount. This offer does not apply to repair orders already in house. Weller Repair Offer Expires: June 30, 2011 Weller Soldering Channel on YouTube http://www.youtube.com/user/wellersoldering Weller Soldering on Twitter http://twitter.com/#!/WellerBrand Weller Soldering on Facebook http://www.facebook.com/WellerSoldering __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 on PSK IMD?
Getting ready to use my K2 SN6473 on PSK and possibly other data modes. Wondering if there's any issues w/IMD on the K2? I seem to remember seeing somewhere on the web a mod made to the SSB board? or was that just early SN K2s? Or if I just watch my gain/power levels to avoid any ALC should I be OK? Tks, Steve wGOAT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 on PSK IMD?
Steve, That is old information that you were seeing. Those changes have been incorporated on your KSB2 - of course, if you purchased an older KSB2 board from another owner, you should check it physically against the values changed by that IMD mod. The mod instructions are on the Elecraft website. Increase the audio level into the K2 until you see 1 ALC bar, and then back the audio off a bit until it disappears or just barely flickers. 73, Don W3FPR On 5/4/2011 3:52 PM, Steve_wG0AT wrote: Getting ready to use my K2 SN6473 on PSK and possibly other data modes. Wondering if there's any issues w/IMD on the K2? I seem to remember seeing somewhere on the web a mod made to the SSB board? or was that just early SN K2s? Or if I just watch my gain/power levels to avoid any ALC should I be OK? Tks, Steve wGOAT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K144RFLK Offsets?
Hi Mark, If your value of REFCAL is very close to 49,380,000 then the XVn offsets will be very small, and may even be zero. BTW, what is the value of REFCAL on your radio? 73, Paul -- Paul Saffren - n6hz Firmware Engineer Elecraft Inc. 831.763.4211 www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K133RF:K Offsets
My REF frequency is 49.380.000 Right on the money, Since my radio reads out directly on the REF frequency, that is why I was suggesting putting a statement in the manual to just go ahead and set the Offsets to 0 for that case. Mark Goecke KC5VF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K133RF:K Offsets
Mark, I agree with you. If your REFCAL is on the button, or fairly close (which I'll have to calculate) , the XVn values should then be set to zero. I'll talk to our technical writer and address the changes to the manual. Thanks, paul -- View this message in context: http://elecraft.365791.n2.nabble.com/Re-K133RF-K-Offsets-tp6332306p6332366.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] K2 Transmit Test
I ran a transmit test today on my recently built (serial 7059) K2/100, with SSB adaptor, KAT 100 antenna tuner and elecraft balun. For the station antenna, I have an 80 meter dipole with each leg currently cut to 66 feet. The center of the dipole is not quite 40 feet high. The two ends are inverted downward and are each 10 feet off the ground. All three points of the antenna are anchored in trees. The antenna is fed to the shack with 165 feet of The Wireman 'window' ladder line I used my microphone to call a CQ on 40 meters, and the KAT 100 lit up like a Holiday Tree. SWR all the way to the red zone. I tried this at various power settings up to 100 watts, and only transmitted long enough to see how many lights I got. Always to the end of the scale. I used a separate SWR meter and was getting readings of 7:1. I switched to a 300 watt dummy load from the 80 meter dipole, and the SWR reading on the KAT 100 was perfect. Just one light lit up. I also did a continuity check between the two lines on the ladder line to verify I did not have a short. OK there. Any suggestions? Is it possible that all I need to do at this point is trim the antenna? Or do I have something internal going on? 73 de WN2K Paul Agoglia __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Weird K2 tuning thing (hand capacitance)
Something seems weird with my K2 - when I put my hand near the front left of the face the frequency of signals on the band swing around wildly (sometimes I can get the signal to go outside of a 500 hz passband). Sometimes it settles back down to where it was before but sometimes not. It also happens if I push on the top of the cover on the top left too. I'm not sure if its a shielding issue or what but I took the cover off and stuck my hand in that corner and could not get it to act up until I put the cover back on. I couldn't find anything in the manual about this type of behavior so hopefully somebody on the list knows of a way to fix this as it is getting a bit annoying. Thanks! 73 de W0EA TJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Transmit Test
Paul, Did you set the menu ATU parameter to AUTO and then do a TUNE before trying to transmit? If you did, you should have heard relays clack while the KAT100 found a match, then the SWR indicators should have settled to less than 1.5. If you followed that procedure, then yes, you can conclude that the feedpoint impedance of the antenna is beyond the matching range of the KAT100. Remember that the KAT100 is not an automatic tuner that will initiate a TUNE when it detects a high SWR - the operator must do a TUNE into the antenna for each band, and then afterwards, those settings will be remembered by the KAT100, and restored when you return to that band. As long as you do not change the antenna, those settings should be good, but first, you must do a TUNE on each band to allow the KAT100 to find a match for that band/antenna. 73, Don W3FPR On 5/4/2011 7:49 PM, Paul Agoglia wrote: I ran a transmit test today on my recently built (serial 7059) K2/100, with SSB adaptor, KAT 100 antenna tuner and elecraft balun. For the station antenna, I have an 80 meter dipole with each leg currently cut to 66 feet. The center of the dipole is not quite 40 feet high. The two ends are inverted downward and are each 10 feet off the ground. All three points of the antenna are anchored in trees. The antenna is fed to the shack with 165 feet of The Wireman 'window' ladder line I used my microphone to call a CQ on 40 meters, and the KAT 100 lit up like a Holiday Tree. SWR all the way to the red zone. I tried this at various power settings up to 100 watts, and only transmitted long enough to see how many lights I got. Always to the end of the scale. I used a separate SWR meter and was getting readings of 7:1. I switched to a 300 watt dummy load from the 80 meter dipole, and the SWR reading on the KAT 100 was perfect. Just one light lit up. I also did a continuity check between the two lines on the ladder line to verify I did not have a short. OK there. Any suggestions? Is it possible that all I need to do at this point is trim the antenna? Or do I have something internal going on? 73 de WN2K Paul Agoglia __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Transmit Test
Paul, you can use an 80 meter dipole on 40 as you describe. Many have done it with success. However, you may have to fool with it to get it to work, since the antenna is being fed at a very high impedance point. I assume the balun you're talking about is 4:1. To start, I'd suggest grounding the cold side of the balun to a counterpoise consisting of at least 3 wires 33 feet long strung out in various directions, out the window and lying on the ground if possible. Another helpful measure is to insert an RF isolator (like those available from Radioworks.com). It goes between the balun and the tuner. This is just a 1:1 choke balun which kills off any RF current flowing on the outside of your coax. I'd bet that these two modifications will bring things under control. If not, you may have to try different lengths of feedline, but save that for a last resort. good luck, Tony KT0NY On Wed, May 4, 2011 at 6:49 PM, Paul Agoglia pagog...@stny.rr.com wrote: I ran a transmit test today __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Weird K2 tuning thing (hand capacitance)
TJ, That is indeed weird behavior for the K2. I would suspect a solder connection problem somewhere inside the K2. If not a solder problem -- Did you flush cut the leads below the BFO inductor L33? If not, the toroid may be sitting too high and contacting the bottom cover. And did you put tape on the bottom cover where L33 is located to assure that the toroid cannot make contact with the bottom cover? 73, Don W3FPR On 5/4/2011 7:50 PM, TJ Campie wrote: Something seems weird with my K2 - when I put my hand near the front left of the face the frequency of signals on the band swing around wildly (sometimes I can get the signal to go outside of a 500 hz passband). Sometimes it settles back down to where it was before but sometimes not. It also happens if I push on the top of the cover on the top left too. I'm not sure if its a shielding issue or what but I took the cover off and stuck my hand in that corner and could not get it to act up until I put the cover back on. I couldn't find anything in the manual about this type of behavior so hopefully somebody on the list knows of a way to fix this as it is getting a bit annoying. Thanks! 73 de W0EA TJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Transmit Test
Tony and all, Those counterpoise wires should not just be dangled on the ground. They will carry RF current, and the RF voltage at the ends can be quite high. Treat them just like an antenna radiating element - keep them clear of possible contact for humans and pets, and use insulators on the ends just as you would on an antenna radiator. Be safe for yourself and your family and guests. 73, Don W3FPR On 5/4/2011 8:09 PM, Tony Estep wrote: Paul, you can use an 80 meter dipole on 40 as you describe. Many have done it with success. However, you may have to fool with it to get it to work, since the antenna is being fed at a very high impedance point. I assume the balun you're talking about is 4:1. To start, I'd suggest grounding the cold side of the balun to a counterpoise consisting of at least 3 wires 33 feet long strung out in various directions, out the window and lying on the ground if possible. Another helpful measure is to insert an RF isolator (like those available from Radioworks.com). It goes between the balun and the tuner. This is just a 1:1 choke balun which kills off any RF current flowing on the outside of your coax. I'd bet that these two modifications will bring things under control. If not, you may have to try different lengths of feedline, but save that for a last resort. good luck, Tony KT0NY On Wed, May 4, 2011 at 6:49 PM, Paul Agogliapagog...@stny.rr.com wrote: I ran a transmit test today __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Transmit Test
Paul, In addition to the points in my last post, a check of the feedpoint impedance (with an antenna analyzer) at the end of the parallel line would be informative. If you have an 80 meter radiator and a feedline that is close to a half wavelength on 40 meters (34 feet or some multiple of that length), the feedpoint impedance will be very high. You might do well to try adding a 15 foot length of parallel feedline. I would advocate that a 1:1 balun will usually serve you better than a 4:1. It is not the characteristic impedance of the balanced line that is to be matched, but the actual feedpoint impedance of the feedline at the point where the balun is inserted - it all depends on the electrical feedline length and the electrical length of the radiator. An 80 meter radiator used on 40 meters is two halfwaves in phase which has a high feedpoint impedance at the antenna feedpoint, one must use a balanced feedline that has an electrical length of 1/4 wavelength or an odd multiple thereof to bring the feedpoint impedance down to a reasonable level. 73, Don W3FPR On 5/4/2011 7:49 PM, Paul Agoglia wrote: I ran a transmit test today on my recently built (serial 7059) K2/100, with SSB adaptor, KAT 100 antenna tuner and elecraft balun. For the station antenna, I have an 80 meter dipole with each leg currently cut to 66 feet. The center of the dipole is not quite 40 feet high. The two ends are inverted downward and are each 10 feet off the ground. All three points of the antenna are anchored in trees. The antenna is fed to the shack with 165 feet of The Wireman 'window' ladder line I used my microphone to call a CQ on 40 meters, and the KAT 100 lit up like a Holiday Tree. SWR all the way to the red zone. I tried this at various power settings up to 100 watts, and only transmitted long enough to see how many lights I got. Always to the end of the scale. I used a separate SWR meter and was getting readings of 7:1. I switched to a 300 watt dummy load from the 80 meter dipole, and the SWR reading on the KAT 100 was perfect. Just one light lit up. I also did a continuity check between the two lines on the ladder line to verify I did not have a short. OK there. Any suggestions? Is it possible that all I need to do at this point is trim the antenna? Or do I have something internal going on? 73 de WN2K Paul Agoglia __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Weird K2 tuning thing (hand capacitance)
Thanks Don - I did not build my K2 but I checked L33 and it looks good. It seems the problem is more prominent when I push on the top cover anyway, which makes me think that L33 isn't the problem. Are there any specific components in the front left of the RF board I should look for specifically for bad solder joints? -- TJ Campie, w0ea On Wednesday, May 4, 2011 at 7:16 PM, Don Wilhelm wrote: TJ, That is indeed weird behavior for the K2. I would suspect a solder connection problem somewhere inside the K2. If not a solder problem -- Did you flush cut the leads below the BFO inductor L33? If not, the toroid may be sitting too high and contacting the bottom cover. And did you put tape on the bottom cover where L33 is located to assure that the toroid cannot make contact with the bottom cover? 73, Don W3FPR On 5/4/2011 7:50 PM, TJ Campie wrote: Something seems weird with my K2 - when I put my hand near the front left of the face the frequency of signals on the band swing around wildly (sometimes I can get the signal to go outside of a 500 hz passband). Sometimes it settles back down to where it was before but sometimes not. It also happens if I push on the top of the cover on the top left too. I'm not sure if its a shielding issue or what but I took the cover off and stuck my hand in that corner and could not get it to act up until I put the cover back on. I couldn't find anything in the manual about this type of behavior so hopefully somebody on the list knows of a way to fix this as it is getting a bit annoying. Thanks! 73 de W0EA TJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Tips for new KX1
Hello all, I am combining some gift cash plus the proceeds from the sale of a radio and have enough to finally order my very own KX1 CW QRP transceiver kit. For the moment, the base radio is the only thing I can purchase. I eventually will add the 3080, antenna tuner and the nifty key. I recall some folks with the K2 suggest procuring the desired options ahead of time to avoid reworking portions of the circuitry during a later retrofit. Does the KX1's design lend itself to add the 3080 and tuner options later with little rework? Anyone have any other advice to give before I plunge into building the base KX1 rig? I already know about pre-wound toroids, but enjoy doing those myself. Thanks. John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
This is odd. Just finished a QSO with J5UAP on 30m this evening and then switched over to 40m to pursue some more DX. When I got there, I wasn't able to get any power out. It showed 0.0W when I tried to TUNE (I have a remote tuner at the base of my vertical). I power cycled the radio and then received a multitude of errors upon power-up (including ERR IO1 and ERR PL1 among others). In addition to that, the fans were running (I have the 100w amp as well). I turned the radio off for a minute or so, and now the error has resolved. I've had the issue of the no power out when TUNE-ing in the past, but never this before. Help! -john W4PAH K3 #110 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Add to this the fact that the radio now is only putting out 12W instead of 100W. :-( Thanks for any assistance. -john W4PAH On Wed, May 4, 2011 at 10:28 PM, John Shadle sha...@katzenfisch.com wrote: This is odd. Just finished a QSO with J5UAP on 30m this evening and then switched over to 40m to pursue some more DX. When I got there, I wasn't able to get any power out. It showed 0.0W when I tried to TUNE (I have a remote tuner at the base of my vertical). I power cycled the radio and then received a multitude of errors upon power-up (including ERR IO1 and ERR PL1 among others). In addition to that, the fans were running (I have the 100w amp as well). I turned the radio off for a minute or so, and now the error has resolved. I've had the issue of the no power out when TUNE-ing in the past, but never this before. Help! -john W4PAH K3 #110 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Tips for new KX1
On Wed, 2011-05-04 at 22:12 -0400, John wrote: Hello all, I am combining some gift cash plus the proceeds from the sale of a radio and have enough to finally order my very own KX1 CW QRP transceiver kit. Hi John, It's a great little radio; you'll love it. I built the 40-20 version and the autotuner and used the radio for a bit before adding the 80-30 module. I think the answer to your question rests in large part on how experienced you are at kit-building and how adept you are at editing construction manuals -- reading through both sets of very detailed instructions, adding any changes from the errata page, then fold one into the other for a straight-through build that works the first time. When I tackled mine, it was the first kit I'd built in roughly 25 years, so I took the conservative 40-20 route and don't regretted it. If I remember correctly, Elecraft recommends adding the 80-30 after you're sure you have a functioning 40-20 radio. The tuner is easy enough to remove when it comes time to add the two extra bands. The approach also introduced me to the joys of a desoldering tool, a kind of reverse, spring-loaded syringe. Looks like something I wouldn't want to see a physician wield around my bod! ;-) I bought the options all at once. But I felt most comfortable following Elecraft's recommended approach. Dunno if this helps at all... With best regards, Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: w1...@arrl.net | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 Amateur radio is a contact sport. Get on the air and make a contact! -- Lyle Amundson, K0LFV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Wow! I've not had those issues turn up on my K3, but suddenly not getting more than 12W out sounds like the KPA100 is off-line. Considering how confused the K3 acted previously, I'd check the CONFIG menu to ensure it still shows the KPA100 as Installed. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Shadle Sent: Wednesday, May 04, 2011 7:30 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] multiple error messages on start-up Add to this the fact that the radio now is only putting out 12W instead of 100W. :-( Thanks for any assistance. -john W4PAH On Wed, May 4, 2011 at 10:28 PM, John Shadle sha...@katzenfisch.com wrote: This is odd. Just finished a QSO with J5UAP on 30m this evening and then switched over to 40m to pursue some more DX. When I got there, I wasn't able to get any power out. It showed 0.0W when I tried to TUNE (I have a remote tuner at the base of my vertical). I power cycled the radio and then received a multitude of errors upon power-up (including ERR IO1 and ERR PL1 among others). In addition to that, the fans were running (I have the 100w amp as well). I turned the radio off for a minute or so, and now the error has resolved. I've had the issue of the no power out when TUNE-ing in the past, but never this before. Help! -john W4PAH K3 #110 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Tips for new KX1
John, the KX1's tuner is a snap to add. Remove a jumper from the connector for the KXAT1 and plug it in. The connector on the main KX1 pcb is installed during the initial build. The 3080 option is a little more involved since it involves mounting a pony board on the main board, but it's nothing to shy away from if you've built the KX1. My K2 was assembled bit by bit as the options were developed and had no issue doing that. But some folks just don't want to pull the cover off again once the rig's assembled and some opt to have someone else build for them so they definitely are not interested in dragging out a soldering iron. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Sent: Wednesday, May 04, 2011 7:13 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Tips for new KX1 Hello all, I am combining some gift cash plus the proceeds from the sale of a radio and have enough to finally order my very own KX1 CW QRP transceiver kit. For the moment, the base radio is the only thing I can purchase. I eventually will add the 3080, antenna tuner and the nifty key. I recall some folks with the K2 suggest procuring the desired options ahead of time to avoid reworking portions of the circuitry during a later retrofit. Does the KX1's design lend itself to add the 3080 and tuner options later with little rework? Anyone have any other advice to give before I plunge into building the base KX1 rig? I already know about pre-wound toroids, but enjoy doing those myself. Thanks. John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Plus do a full congig TX etc Gary On 5 May 2011 12:46, Ron D'Eau Claire r...@cobi.biz wrote: Wow! I've not had those issues turn up on my K3, but suddenly not getting more than 12W out sounds like the KPA100 is off-line. Considering how confused the K3 acted previously, I'd check the CONFIG menu to ensure it still shows the KPA100 as Installed. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Shadle Sent: Wednesday, May 04, 2011 7:30 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] multiple error messages on start-up Add to this the fact that the radio now is only putting out 12W instead of 100W. :-( Thanks for any assistance. -john W4PAH On Wed, May 4, 2011 at 10:28 PM, John Shadle sha...@katzenfisch.com wrote: This is odd. Just finished a QSO with J5UAP on 30m this evening and then switched over to 40m to pursue some more DX. When I got there, I wasn't able to get any power out. It showed 0.0W when I tried to TUNE (I have a remote tuner at the base of my vertical). I power cycled the radio and then received a multitude of errors upon power-up (including ERR IO1 and ERR PL1 among others). In addition to that, the fans were running (I have the 100w amp as well). I turned the radio off for a minute or so, and now the error has resolved. I've had the issue of the no power out when TUNE-ing in the past, but never this before. Help! -john W4PAH K3 #110 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 -- VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Aaaargh...dang fingers...CONFIG TX GN Sheesh Gary On 5 May 2011 12:51, Gary Gregory garyvk...@gmail.com wrote: Plus do a full congig TX etc Gary On 5 May 2011 12:46, Ron D'Eau Claire r...@cobi.biz wrote: Wow! I've not had those issues turn up on my K3, but suddenly not getting more than 12W out sounds like the KPA100 is off-line. Considering how confused the K3 acted previously, I'd check the CONFIG menu to ensure it still shows the KPA100 as Installed. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Shadle Sent: Wednesday, May 04, 2011 7:30 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] multiple error messages on start-up Add to this the fact that the radio now is only putting out 12W instead of 100W. :-( Thanks for any assistance. -john W4PAH On Wed, May 4, 2011 at 10:28 PM, John Shadle sha...@katzenfisch.com wrote: This is odd. Just finished a QSO with J5UAP on 30m this evening and then switched over to 40m to pursue some more DX. When I got there, I wasn't able to get any power out. It showed 0.0W when I tried to TUNE (I have a remote tuner at the base of my vertical). I power cycled the radio and then received a multitude of errors upon power-up (including ERR IO1 and ERR PL1 among others). In addition to that, the fans were running (I have the 100w amp as well). I turned the radio off for a minute or so, and now the error has resolved. I've had the issue of the no power out when TUNE-ing in the past, but never this before. Help! -john W4PAH K3 #110 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 -- VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! -- VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Tips for new KX1
On Wed, 2011-05-04 at 22:12 -0400, John wrote: Hello all, Oh yes, and the instructions for the 40-20 only radio give you variations on a couple of steps that you'd take if you intend to add the 80-30 board later. So the latest instructions anticipate somewhat a later addition of the extra bands. Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: w1...@arrl.net | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 Amateur radio is a contact sport. Get on the air and make a contact! -- Lyle Amundson, K0LFV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
That was my first thought, Ron. I had previously had my TUN PWR set to 25W, but when I looked at that menu item it was set to 12W. I had not changed the setting. The KPA100 was no offline in the config menu at all. I reflashed the firmware and now it's all working, I think. The LP-100A wattmeter is showing about 75W out with a 1.6 SWR into my antenna (the K3 says I'm getting 100W out). That seems a little low to me. Next I'll try a dummy load... The investigation continues. -john On Wed, May 4, 2011 at 10:46 PM, Ron D'Eau Claire r...@cobi.biz wrote: Wow! I've not had those issues turn up on my K3, but suddenly not getting more than 12W out sounds like the KPA100 is off-line. Considering how confused the K3 acted previously, I'd check the CONFIG menu to ensure it still shows the KPA100 as Installed. Ron AC7AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Tips for new KX1
John, If you are an experienced builder, you can build the KX1 with consideration for the addition of the KXB3080 option - if and only if you order the KXB3080 at the same time as the KX1 (you will need some of the components). If you cannot order the KXB3080 until later, just mount L6 on the bottom of the board rather than the top so you do not have to change it later. If you have the KXB3080 kit available while building the KX1, you can avoid de-soldering components by following the instructions below: The procedure is as follows: Build the KX1 as indicated in the manual up through page 30 of the KX1 manual. On page 31, install L6 on the bottom of the board rather than on the top. Do not install L7 on page 31. Do not install C27 (page 32) Do not install C1 on page 33. Do not install C26 (page 33). Continue with the KX1 manual steps. Then from the KXB3080 instructions, install C1, C26 and T2 - be sure to make the PC trace cut indicated on page 5 (figure 2), and connect the end of the 40 meter trimmer capacitor to the cut trace as indicated. You should then have a KX1 that works on 40 and 20 meters - test it on those bands. Then add the KXB3080 board as indicated in the KXB3080 manual, and again test the KX1 on 40 and 20 meters. Lastly (and most carefully), build the Low Pass Filter board for the KXB3080. Follow the manual diagrams explicitly, work carefully, and make it look just like the diagrams - this is the most common failure point for builders. Then activate b30 and b80 in the menu, and you should have operation on all 4 bands. Good luck with the build process. Use care when building the KX1 - because of its density, it is one of the more difficult Elecraft kits. Follow the instructions explicitly, use good soldering techniques and you should have success. If you do not understand any step in the instructions, ask here on the reflector and you should receive clarification. 73, Don W3FPR On 5/4/2011 10:12 PM, John wrote: Hello all, I am combining some gift cash plus the proceeds from the sale of a radio and have enough to finally order my very own KX1 CW QRP transceiver kit. For the moment, the base radio is the only thing I can purchase. I eventually will add the 3080, antenna tuner and the nifty key. I recall some folks with the K2 suggest procuring the desired options ahead of time to avoid reworking portions of the circuitry during a later retrofit. Does the KX1's design lend itself to add the 3080 and tuner options later with little rework? Anyone have any other advice to give before I plunge into building the base KX1 rig? I already know about pre-wound toroids, but enjoy doing those myself. Thanks. John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Doing that now. Thanks, Gary. -john On Wed, May 4, 2011 at 10:52 PM, Gary Gregory garyvk...@gmail.com wrote: Aaaargh...dang fingers...CONFIG TX GN Sheesh Gary On 5 May 2011 12:51, Gary Gregory garyvk...@gmail.com wrote: Plus do a full congig TX etc Gary __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
Just did the TX GAIN CONFIG and I'm getting only ~80W into the dummy load on all bands. Hmmm. Thoughts? Maybe my LP-100A is poorly aligned, but I don't think so... -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
OK. I'm really going to bed now--but before I do I noticed that I can turn the TX ALC 'off' in the CONFIG menu and manually adjust the TXGN HP for each band to achieve the 100W into the dummy load (as measured through the LP-100A). Is this advisable? -john W4PAH On Wed, May 4, 2011 at 11:15 PM, John Shadle sha...@katzenfisch.com wrote: Just did the TX GAIN CONFIG and I'm getting only ~80W into the dummy load on all bands. Hmmm. Thoughts? Maybe my LP-100A is poorly aligned, but I don't think so... -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] multiple error messages on start-up
TX ALC should work in the OFF position just fine. I don't use ALC on the KPA_500 anyway so it should be fine. Gary On 5 May 2011 13:34, John Shadle sha...@katzenfisch.com wrote: OK. I'm really going to bed now--but before I do I noticed that I can turn the TX ALC 'off' in the CONFIG menu and manually adjust the TXGN HP for each band to achieve the 100W into the dummy load (as measured through the LP-100A). Is this advisable? -john W4PAH On Wed, May 4, 2011 at 11:15 PM, John Shadle sha...@katzenfisch.com wrote: Just did the TX GAIN CONFIG and I'm getting only ~80W into the dummy load on all bands. Hmmm. Thoughts? Maybe my LP-100A is poorly aligned, but I don't think so... -john W4PAH -- VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Microphone Cable
I am getting ready to buy a K3 and a MH-2 hand mike. Due to the layout of my station, I need to add a 6-foot-long extension cable from the K3 mike jack to the actual mike connection. I have the necessary connectors on hand. but I'm wondering about the 8-conductor cable. Is a piece of CAT-5 data cable (four twisted pairs of #24 wire) suitable for this purpose? Are there any special precautions I need to observe? TNX 73, Steve AA4AK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - QST Article
There is a similar article on p.36-38 of this month's (May 2011) CQ Magazine. Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-QST-Article-tp6331809p6333113.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] K3 Microphone Cable
Ethernet cable is gonna look oogly - but it's cheap. The twisted pairs should provide a little shielding. The jacket will not be very smooth unless it's made from some material like TPE (rubberized thermoplastic). These are usually called Plenum Cables because of the rated temperature range. They're also round instead of the PVC-jacket-gets-twisted (and otherwise deformed) characteristic. I would advise a fully shielded mic HOT and RETURN cable. The Pro stuff, like Shure used to source in the 1970's. Dunno who sells this class of mic cable now, but there was a distributor in Burbank, CA a long time ago that used to service the west coast NBC studio. I would look along those lines. At this station, there's been no trouble with the cabling for a Heil Goldline that Heil itself provides. It's a little pricey for someone that is mostly DIY, but your TX audio will never suffer from it. So even though you want to use the MH2, an extension in one of these two classes might cut it for you. You might look into Heil Audio; they may source an extension for the MH2 or its equivalent. I believe the idea would be to minimize the impedance from source to load, while keeping any stray RF away from the MIC input to the K3. At this station, I have a lifetime supply of the Shure cable. It's double-shielded with both a woven layer and a thick foil. That, and a few ferrite collars cover the audio here from RFI. Audio reports are good too, better than anyone has a right to expect. 73, matt W6NIA On Wed, 04 May 2011 23:57:48 -0400, you wrote: I am getting ready to buy a K3 and a MH-2 hand mike. Due to the layout of my station, I need to add a 6-foot-long extension cable from the K3 mike jack to the actual mike connection. I have the necessary connectors on hand. but I'm wondering about the 8-conductor cable. Is a piece of CAT-5 data cable (four twisted pairs of #24 wire) suitable for this purpose? Are there any special precautions I need to observe? TNX 73, Steve AA4AK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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/K3 Operating Tip: Using SCAN to keep an eye
I tried it, and thought I had flunked scanning 101. You have to push the M - V button twice before pushing the scan button. Maybe it says that somewhere, but I didn't see it. I was only pushing it once. Anyway, now it plays! Watching my P3, however, it does skip over some signals. Some seemed sufficiently strong to have stopped the scan, but I suppose it is a matter of whether or not a character is being sent at precisely the moment the scan feature rolls across that freq. Dave W7AQK --- Page 40 is the assignment tonight. :-) I did not know this existed. Don KD8NNU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Microphone Cable
Steve, Is a piece of CAT-5 data cable (four twisted pairs of #24 wire) suitable for this purpose? Are there any special precautions I need to observe? It will work fine. Just be sure to use one pair for mic and mic return (pin1 and pin 7) and one pair for PTT and ground (pin 2 and pin 8). The other pins can be any wires but using twisted pairs for mic/mic return and PTT/Ground will provide the best balancing to reduce any hum/RFI issues with the unshielded cable. If you can find shielded CAT5, connect the shield to the connector *SHELL* only on both ends (do not connect it to either mic return (pin 7) or ground (pin 8). 73, ... Joe, W4TV On Wed, 04 May 2011 23:57:48 -0400, you wrote: I am getting ready to buy a K3 and a MH-2 hand mike. Due to the layout of my station, I need to add a 6-foot-long extension cable from the K3 mike jack to the actual mike connection. I have the necessary connectors on hand. but I'm wondering about the 8-conductor cable. Is a piece of CAT-5 data cable (four twisted pairs of #24 wire) suitable for this purpose? Are there any special precautions I need to observe? TNX 73, Steve AA4AK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] [K1] VFO Drift Problem
Hi - I am trying to reduce my K1's VFO drift to an acceptable level. The VFO frequency drifts up at a rate of about 30Hz/minute (after a 5 minute warm up). Even after one hour, the drift is still about 15Hz/minute. This is too much, obviously. I have been trouble shooting this with the help of Gary, AB7MY. So far I have done the following: * Removed C2 to isolate D3 from the rest of the VFO circuit. No change. * Replaced all three VFO poly caps (one at a time). See above. I was wondering if anybody had any ideas on how to further trouble-shoot and resolve this issue... Thanks in advance and 73, -Matt / W6ZBA K1 #2978 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
