[Elecraft] K3 AM Low Power
Today I needed to use my K3/100 on AM. I found that the maximum power it would deliver was about 5W. When the PA stage switches in it seems to make no difference to the output. All other modes give the correct output. I have run the TX gain cals OK. I have the 13kHz FM filter in FL1 on TX which I understand was allowed to be used for AM TX starting in F/W V4.54. Anything I have forgotten to switch on or adjust ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 AM Low Power
The first thing I would do is load up the K3 Configuration Utility and connect to the K3. Click on the 'Configuration' tab and select 'Configure Crystal Filters.' Make sure AM enable as well as TX enable are both selected for FL1. On 6/1/2013 3:02 AM, Stewart wrote: Today I needed to use my K3/100 on AM. I found that the maximum power it would deliver was about 5W. When the PA stage switches in it seems to make no difference to the output. All other modes give the correct output. I have run the TX gain cals OK. I have the 13kHz FM filter in FL1 on TX which I understand was allowed to be used for AM TX starting in F/W V4.54. Anything I have forgotten to switch on or adjust ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Greg, all, I see his web site has now been updated and there are options for international shipment - I was sure he'd told me he had sold to USA and Canada in the recent past. Chris G5VZ / WG5VZ On 01/06/2013 03:07, Greg wrote: His website says UK sales ONLY. On Fri, May 31, 2013 at 3:04 PM, Chris, G5VZ ch...@g5vz.co.uk mailto:ch...@g5vz.co.uk wrote: I don't know exactly what G3TPW is doing these days but M0ZIM is selling a commercial cobwebb: see http://www.mcr666.com/sales1/ham-radio/4-meter-70-meg-base-vertical-antenna/cobwebb-antenna/ Usual disclaimers - I do have one of these antennas but otherwise no interest in the operation. I think Mark will ship worldwide. Chris G5VZ / WG5VZ On 31/05/2013 22:44, Bill Blomgren wrote: Exactly - Not sure what is going on with the commercial version's guy... I suspect that is a side venture, and 'real work' probably has him tied up. It's either that, or he doesn't want to fight with exchange rates, shipping out of olde blighty, and all that stuff. That said.. I'm wondering if there are other baluns that might have better performance up as far as say 6 meters... heh - allowing a 6th band... - Original Message - From: rck...@comcast.net mailto:rck...@comcast.net To: Bill Blomgren Cc: Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net Sent: Friday, May 31, 2013 6:54 AM Subject: Re: [Elecraft] cobweb antenna Hello Bill, I have no intent to denigrate the design and functionality of the Cobweb style antenna but. Several years ago I was inclined to acquire the G3TPW commercial version of the CobWebb antenna, I found the website ( www.g3tpw.co.u ) and sent an email asking how to order, method of payment shipping charges, etc. Got no response..I thought maybe there was some problem with the 1st email attempt so I sent another.still no response. So I sent an inquiry via regular mail, including a self addressed (with postage) return envelope..no reply whatsoever... So I can't comment on how well the G3TPW version functions..but in consideration of my above described experience, maybe you should limit your effort to a homebrew version. Also, later I had good results with the homebrew version of the Buddipole, built from free instructions on W3FF's homepage ( https://sites.google.com/site/w3ffhomepage/ ). But back then I was doing more portable ops and since the commercial version is more sturdy I decided to get one..saw one being offered on ebay so I bid and won the auction. Eventually I lost one small bit and needed a replacement part so I contacted W3FF and got very fast responseeven though I hadn't purchased direct from them. So I've decided customer service is just as important as functionality when deciding which products to acquire. Just my opinion... Rich K2CPE K2 #1102 -- From: Bill Blomgren billb...@nc.rr.com mailto:billb...@nc.rr.com To: Elecraft@mailman.qth.net mailto:Elecraft@mailman.qth.net Sent: Thursday, May 30, 2013 10:27:22 PM Subject: [Elecraft] cobweb antenna I'm still in the pre-purchase stage.. but I'm sort of thinking that the K3 is where I'm going to end up.. Possibly with the preamp...and then there is the big problem: what to make it to the air with. The idea of starting off with the buddipole system is out there - and very possible... I've also been reading up on the plusses and minuses of many of the alternatives that may be possible in an apartment life... One is the magnetic loop - which is a tad pricey with the vac. variable -- lots of copper, and the need to tune the thing every time you change frequency - and not just antenna tuner stuff - as in changing the cap on the antenna itself. It is a very high q (and thus voltage and current) critter...Rube Golberg figured out how to do that.. motors with long screw drives into a sealed box with the cap inside..with very high voltages there... and thus requiring altitude for safety.. I came across a nifty square thing called a cobweb, which is more or less semi-flat over 4-5 bands... is very light..and can be made of pvc pipe or possibly fiber glass because
Re: [Elecraft] K3 AM Low Power
Oh and don't forget to apply the changes before exiting the K3 utility. Mike KI0HA On 6/1/2013 4:45 AM, Michael Eberle wrote: The first thing I would do is load up the K3 Configuration Utility and connect to the K3. Click on the 'Configuration' tab and select 'Configure Crystal Filters.' Make sure AM enable as well as TX enable are both selected for FL1. On 6/1/2013 3:02 AM, Stewart wrote: Today I needed to use my K3/100 on AM. I found that the maximum power it would deliver was about 5W. When the PA stage switches in it seems to make no difference to the output. All other modes give the correct output. I have run the TX gain cals OK. I have the 13kHz FM filter in FL1 on TX which I understand was allowed to be used for AM TX starting in F/W V4.54. Anything I have forgotten to switch on or adjust ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3 AM Low Power
Hi Michael, Thanks for your post. Nothing to do with my K3 setup. I have now got to the bottom of it. Nothing wrong, just the way I was seeing things. I expected that when I turned the power control up the carrier power would a) follow immediately b) be the same value as the control setting. What Elecraft have done (and it makes sense) is to somehow sample the signal so that the modulation peaks equal the power set. It takes time for things to happen. I have confirmed this by looking at the output power on a scope. I was getting confused by expecting the power setting to change much quicker as in all the other modes... 73 Stewart G3RXQ On Sat, 01 Jun 2013 04:45:08 -0500, Michael Eberle wrote: The first thing I would do is load up the K3 Configuration Utility and connect to the K3. Click on the 'Configuration' tab and select 'Configure Crystal Filters.' Make sure AM enable as well as TX enable are both selected for FL1. On 6/1/2013 3:02 AM, Stewart wrote: Today I needed to use my K3/100 on AM. I found that the maximum power it would deliver was about 5W. When the PA stage switches in it seems to make no difference to the output. All other modes give the correct output. I have run the TX gain cals OK. I have the 13kHz FM filter in FL1 on TX which I understand was allowed to be used for AM TX starting in F/W V4.54. Anything I have forgotten to switch on or adjust ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Twisted Pair RS232 leads, particularly [K2] (was: EARC End Fed 6-40 question)
I could understand your suggestion wrt to twisted pair on the K2 serial cable if it were using RS-423 and therefore balanced receivers with no parallelling of the signal returns. However, how does twisted pair really help if the return in the twisted pair is in parallel with that for the other signal lines and any functional earth bonding strap between the two pieces of equipment? Of course, PCs don't use RS-423, so one could only implement that for data to the K2. Jim Brown wrote: Another issue, if you're using a K2, is that the serial cable that was built from instructions (and the parts provided) used parallel conductors rather than twisted pair. That was a VERY poor design choice -- parallel conductors are very susceptible to RF and other noise, and twisted pair inherently rejects RFI and noise. That's why CAT5/6/7 cable is twisted pair. -- David Woolley Registered owner K2 06123 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Joe Subich, W4TV wrote: The near field (basically within the range where it follows an inverse cube law) can be predominantly magnetic or predominantly electric in nature. Whilst the ratio of electric and magnetic fields in the far field is constrained to 377 ohms per square, that is not true in the near field. No. If the field is not able to couple to nearby objects, it is not able to radiate (couple to) distant receivers. The statement flies completely in the face of physics. -- David Woolley Registered owner of K2 06123 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb
Hello to Elecraft group, In response to my previous post re: the G3TPW version of the Cobwebb antenna, I have received a direct email from M0ZIM regarding his version of the Cobweb, as follows : HI Richard Thanks for your interest and comments on my cobwebb antenna i do send over seas now but its the cost of sending i posted one a few weeks ago to the usa and is cost £98 just for the postage. This is why i don't push them in the USA. On the other hand £250 delivered to the usa is still cheaper than buying from Mr webb. I will be updating the website for USA buyer in the next week or so but i can only build so many i must say its hard to keep up with the demand noW. Please feel free to email me or pass this info on kind regards MARK M0ZIM 73 mcrapper1...@aol.com I hope his email to me will clear up questions about the current availability of the Cobweb in the US, and maybe now is a good time to end this thread? Mark, thanks for the updated info. Rich K2CPE K2 #1102 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3, VOX, and PSK
If your intent is to run PSK from the usual kind of PSK software that works with non-Elecraft radios, i.e. software that generates a PSK signal at audio frequencies to be fed into a radio's microphone or line in input in SSB mode, then you should be putting your KX3 into DATA A mode. DATA A is basically a specialized version of USB, with audio equalization and compression disabled and different default filter settings. VOX works in DATA A mode. To use PSK D mode, you would need software that sends the ASCII text you want to send to the radio via the radio control port, and that controls TX/RX switching via the same pathway. Standard audio-based PSK software that works with non-Elecraft radios will not work with PSK D. 73, Rich VE3KI Randy Buckspan wrote: I want to run PSK via my iPhone and KX3 using an interface that requires VOX to trigger transmit. With the KX3 in DATA Mode and PSK D, VOX is N/A. My only choice is to run USB and enable VOX. Is there a way that VOX can be enabled in DATA Mode, or am I missing something? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Jim, Thanks for the links interesting... This is the Elecraft list so yes my KX3 with internal ATU and another without and T1 ATU finds a match easily, same for K1 or K2 with this antenna. You do not have to buy the antenna at all ... you can build your own from a few parts as I did. A stanchion floor plate (so it fits on top of the mast), an Aluminium centre plate, some U bolts, lengths of hose pipe to fit over 4 poles so you do not crush them in the u blots, a couple dozen tie-wraps (for the wires) and some speaker wire (or zip cord) and a 8 turn RG213 choke at the feed point was all that was needed. I am sure the website links have all the homebrew info. You can buy a commercial version obviously as well. If you do not have a lot of horizontal space (or an attic for all those stealth antennas) which is why is was designed, it works fine and it can be put up and brought down pretty quickly especially if you have a restriction on permanent antennas. If you are so inclined you could create pivots on the poles so the antenna would close up on itself a bit like a rotary washing line? I used fishing poles so mine basically came apart easily after use. No mystery about the design either it is basically a set of nested 1/2 wave dipoles in a halo's in a square all fed from a common feedpoint. One side is approximately 1/4 of the size of the lowest frequency you want to use. You got a small apartment, back garden or 'yard' in US and it can mean getting on air. It is a 'balanced antenna' so that means no radials etc.. Oddly enough mine worked fine (20ft TV pole) on 160m and 472KHz/500KHz with a few modifications... first I slid a section of PVC between the pole and the HK wall brackets so the pole was better insulated, then I jumpered both the upper feed points to the pole from the connector box (just a series of chocolate blocks for the wires) at the top then fed the pole from the bottom against ground. The antenna then acted as a short vertical with a big capacitance hat. 72 Dom M1KTA On 31/05/13 17:55, Jim Brown wrote: On 5/30/2013 7:27 PM, Bill Blomgren wrote: Has anyone tried one of these critters, and if so, is the Elecraft happy with it? Why BUY an antenna when you can very easily build one for a lot less money that will likely work better? Here are some articles by hams who have done a lot with only a little bit of space. The first is by AC0C, who built a complete antenna system in the attic of his apartment! http://www.kcdxclub.com/Stealth%20Antennas-r1%20-%20AC0C%20-%202-2009.pdf 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Signal Image on NaP3 with KX3
Thanks for all the hints guys - Alan nailed it Ariel NY4G Sent from Windows Mail From: Ariel Jacala Sent: June 1, 2013 2:29 AM To: n...@sonic.net CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] Dual Signal Image on NaP3 with KX3 Turns out the signal was finding its way through the laptop microphone Ariel NY4G Sent from my iPad On Jun 1, 2013, at 12:24 AM, Alan Bloom n...@sonic.net wrote: I once had a similar problem. It turned out that the sound was actually coming in via the microphone built into my laptop computer rather than via the audio input jack. The mic was picking up speaker audio. Drove me crazy until I figured out what was going on. Alan N1AL On 5/31/2013 7:46 PM, Ariel Jacala wrote: I get a dual image on my NaP3 display even though my microphone is set up as a 2 channel. I tried the iMic route and that did not seem to work. The signals are equal in magnitude and in phase in time. Any ideas? The image is 1.4kHz away. Is there a way to squelch that image? Ariel NY4G Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Filters
I have (2) 400 Hz Elecraft roofing filters for sale or trade for 250 Hz filters. email w...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 meter alignment issue
Good morning Don, I check the voltages on my K2 last night and here are the results. I set my AGC back to 3.746 from the 3.80 this way I could compare your results to mine. With RF gain set to clockwise or full. My voltage readings are to the right of yours. U2 pin 5 -- 3.74 volts 3.05 volts U2 pin 6 -- 3.74 3.06 U2 pin 7 -- 3.73 3.05 U2 pin 8 -- 8.34 8.05 (note I measured 8 volt regular and it was 8.05v) U2 pin 1 -- 3.742.59 U2 pin 2 -- 3.442.59 U2 pin 3 -- 3.422.58 U2 pin 4 -- 0.000.00 Q12 base -- 3.68 2.85 Emitter - 3.42 2.58 Collector -- 8.22 8.03 Then with the RF Gain set to full Counterclockwise: U2 pin 5 -- 4.77 volts 3.74 volts U2 pin 6 -- 4.77 3.74 U2 pin 7 -- 4.76 3.74 U2 pin 8 -- 8.34 8.04 U2 pin 1 -- 4.30 3.26 U2 pin 2 -- 4.30 3.26 U2 pin 3 -- 4.30 3.25 U2 pin 4 -- 0.00 0.00 Q12 base -- 4.58 3.53 Emitter - 4.29 3.53 Collector -- 8.22 8.03 These are the voltage results and I did remove the control board from the front panel board and examined P1 and J6. I have to give the connector on the front panel a look at but the knobs have to come off so I can get a good look at the board. I hope these readings my help you out with further narrowing it down. Thanks very much Don for spending all this time on the issue. Mike -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-meter-alignment-issue-tp7574472p7574614.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] K3 vs KX3 AFX
The KX3 DSP has a special effects (AFX) mode by which higher tones go to one ear while lower tones go to the other. The K3 does not. Is there a reason why the K3 can not have this choice? If it can be done, will it? 73, Fred - KT5X K2 # 0700 K3 # 0144 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 vs KX3 AFX
In the button stack above the VFO B knob, the lower right button is labeled 'AFX'. 73, Mike NF4L On Jun 1, 2013, at 9:47 AM, cloud runner just.one.h...@gmail.com wrote: The KX3 DSP has a special effects (AFX) mode by which higher tones go to one ear while lower tones go to the other. The K3 does not. Is there a reason why the K3 can not have this choice? If it can be done, will it? 73, Fred - KT5X K2 # 0700 K3 # 0144 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Feature request - CW KEY1 KEY2
Wayne, et al., It would be great if, in addition to the HAND option for CW keys, there was a BUG option where repeated dits are generated if the dit paddle is held but the dahs are manual, just like a bug. This would allow users who primarily use a bug to more easily go portable with the KXPD3. Thanks, Mark Glenn K7MJG -- View this message in context: http://elecraft.365791.n2.nabble.com/Feature-request-CW-KEY1-KEY2-tp7574617.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] Feature request - CW KEY1 KEY2
That's been a wish this long-term bug user has expressed on this list for over a decade. The arguments from other list members (not Wayne) has always been But it would not FEEL like a bug! They miss the point. What's wanted is bug paddle operation, not bug feel. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of K7MJG Sent: Saturday, June 01, 2013 7:58 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Feature request - CW KEY1 KEY2 Wayne, et al., It would be great if, in addition to the HAND option for CW keys, there was a BUG option where repeated dits are generated if the dit paddle is held but the dahs are manual, just like a bug. This would allow users who primarily use a bug to more easily go portable with the KXPD3. Thanks, Mark Glenn K7MJG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Data A mode question for KX3
In data mode A for the KX3, does it turn mic bias off? Menu says its on but wanted to check for sure. Thanks 73 Emory WM3M __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Quick sanity check on filter test
Just a quick follow up. Spoke to Howard at Elecraft support and a replacement is in the mail! Outstanding products backed by outstanding service! 73 jim ab3cv (happy clam!) On Thu, May 30, 2013 at 9:24 PM, Jim Miller j...@jtmiller.com wrote: I've long suspected the 250hz8p filter in my sub was not working correctly. I finally took it out of the sub and placed in in the main next to another 250hz8p and set the suspect filter to kick in at 700hz and the good one to kick in at 600hz. I then input a test signal using a XG2 and dialed down the bandwidth from 2.8khz down through the 700 and 600 filter set points. AGC set to off. The good one still requires an 8db boost to stay close to the 2.8Khz filter in amplitude. The suspect one is *way* past that. Even if I lower the boost on the good one to 0db boost and boost the suspect one by 8db they still aren't close. Probably another 8-10db difference. This is consistent with what I was seeing in the subrx vs main but by placing the filter in a main socket I could eliminate the subrx as the source of the problem. Anyone else had a bad 8 pole? I'd like some feedback on this test method to make sure I've got my ducks in a row before getting another filter to replace this one. Thanks Jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Twisted Pair RS232 leads, particularly [K2]
On 6/1/2013 3:05 AM, David Woolley (E.L) wrote: However, how does twisted pair really help if the return in the twisted pair is in parallel with that for the other signal lines and any functional earth bonding strap between the two pieces of equipment? Twisting strongly rejects magnetic coupling from an interfering source to the differential circuit. In the near field of a current source, the magnetic field is strongly dominant. Twisting also provides some rejection (at RF) of an electromagnetic field in the differential circuit. Most end-fed antennas have a strong current peak at the feedpoint; if it's end fed wire that ends in the shack, there will be a very strong magnetic field. I encountered this with a K2 feeding an end fed wire on 80 and 160 that shut down my computer at about 10 watts! Changing that cable to unshielded twisted pairs, and terminating the return of each pair to the shell of the DB9 at both ends, allowed me to run my Titan 425 power amp at 1kW. The antenna and the serial cable were within about 1.5 m of each other. As part of my tests of that solution, I ran legal limit into that antenna on all bands up through 10M. No cable shield was required through 17M, but shielding was needed at 15M and above. BTW -- as part of an EMC workshop I led for Audio and Video professionals, I demonstrated that unshielded twisted pair and shielded twisted pair were equivalent in their ability to reject RFI in balanced microphone circuits all the way up to the 900 MHz and 1.6 GHz bands used for cell phones in the US. Neither cable was perfect, both had slight vulnerability, but neither was clearly superior. For the demonstration, I keyed a ham talkie on 2M, 220 MHz, and 440 MHz, a Nextel phone (TMDA 900 MHz) and a borrowed 1.6 GHz phone that also ran TMDA, moving the interference source near the vulnerable equipment and moving it along the cable for several wavelengths. Does bonding help? Absolutely! Sadly, proper bonding of equipment is rare -- hams are fearful of creating ground loops, an entirely fictional boogie-man. I have long advocated (written and lectured) for short fat copper bonding from chassis to chassis of every piece of gear in the shack, and from chassis to chassis of every piece of gear that has any interconnection between them, and from some common point of all of that to all other grounds in a premises. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Data A mode question for KX3
Good morning, I believe it leaves it the mic bias on but turns off the compression. If your using a signalink USB, you need to have the mic bias off UNLESS you are using their prefab jumper board. If you're using their board, you can leave mic bias on. If you're using wire jumpers, it needs to be off. Hope that helps. 73, Steve KS6PD On Saturday, June 1, 2013, WM3M wrote: In data mode A for the KX3, does it turn mic bias off? Menu says its on but wanted to check for sure. Thanks 73 Emory WM3M __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net javascript:; 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] Feature request - CW KEY1 KEY2
Probably heresy, but there are non-Elecraft solutions to a few ham situations. Lots of very tiny memory keyers are available that have a bug mode. Jackson Harbor's tiny PK-4 memory keyer (1x1.5) is one. It is also packaged by Palm as the Code Cube to plug into the back of a Palm paddle. Also available freestanding. It draws around 3 ma in use and microamps when not. Eric KE6US -Original Message- It would be great if, in addition to the HAND option for CW keys, there was a BUG option where repeated dits are generated if the dit paddle is held but the dahs are manual, just like a bug. This would allow users who primarily use a bug to more easily go portable with the KXPD3. Thanks, Mark Glenn K7MJG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Whether the field is predominately magnetic or electric, it must still couple to the environment around it or the antenna *will not* radiate. whilst the same folding that is responsible for the low feed impedance and low efficiency will result in more cancellation close to the antenna than at greater distances, the antenna will still have *significant coupling* to any conductive element in its immediate environment (near field). If that were not true, yagi antennas would be impossible and phased arrays would be easy to design because one could ignore mutual impedance. 73, ... Joe, W4TV On 6/1/2013 6:23 AM, David Woolley (E.L) wrote: Joe Subich, W4TV wrote: The near field (basically within the range where it follows an inverse cube law) can be predominantly magnetic or predominantly electric in nature. Whilst the ratio of electric and magnetic fields in the far field is constrained to 377 ohms per square, that is not true in the near field. No. If the field is not able to couple to nearby objects, it is not able to radiate (couple to) distant receivers. The statement flies completely in the face of physics. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Feature request - CW KEY1 KEY2
Jackson Harbor's tiny PK-4 memory keyer (1x1.5) is one. As are any WinKey based device. 73, ... Joe, W4TV On 6/1/2013 1:23 PM, EricJ wrote: Probably heresy, but there are non-Elecraft solutions to a few ham situations. Lots of very tiny memory keyers are available that have a bug mode. Jackson Harbor's tiny PK-4 memory keyer (1x1.5) is one. It is also packaged by Palm as the Code Cube to plug into the back of a Palm paddle. Also available freestanding. It draws around 3 ma in use and microamps when not. Eric KE6US -Original Message- It would be great if, in addition to the HAND option for CW keys, there was a BUG option where repeated dits are generated if the dit paddle is held but the dahs are manual, just like a bug. This would allow users who primarily use a bug to more easily go portable with the KXPD3. Thanks, Mark Glenn K7MJG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 not completing all events when changing frequency by direct keyboard entry
I do a good amount of direct frequency entry from the keypad. About 50% of the time when I hit the FREQ ENT button, punch in the frequency, and finally hit the AFX/[return] button some actions take place but not all. Most obviously, sometimes the relays don't reset to the new settings, the signal bar graph gets either stuck w/no signal or is pegged, no audio heard, etc. It seems to be random when it happens and how it hangs. I try to make sure that I hit the AFX/[return] button centrally and with enough contact time to be sure it takes. However, I'm still getting the hangs. Any ideas how to fix this? Jim, N8OQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Feature request - CW KEY1 KEY2
On 06/01/2013 01:23 PM, EricJ wrote: Probably heresy, but there are non-Elecraft solutions to a few ham situations. Lots of very tiny memory keyers are available that have a bug mode. Jackson Harbor's tiny PK-4 memory keyer (1x1.5) is one. It is also packaged by Palm as the Code Cube to plug into the back of a Palm paddle. Also available freestanding. It draws around 3 ma in use and microamps when not. Eric KE6US I'd second this. My outboard keyer is a K12 from K1EL (these days it's the K14, I think). I'm a late-comer to bugs but really enjoy using them. (The collection, unfortunately, is growing.) And while a single-lever paddle may not provide the full feel of a bug (although spacing on the finger pieces aside, one can in fact adjust the gaps on a single-lever to come close), it's the habit of sending individual dahs and automatic dits that gets preserved. So when I and my KX1 hit the field, I'm also out with the K12 in an Altoids tin and a American Morse Equipment mini-B. But then, to each their own! ;-) 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] KXPA100 AMP and KXAT100 ATU pics and info
Hi Dave, Here are the links, below, to 100 W Elecraft amplifier http://t.co/uP2G3nOaxb http://t.co/LycW6pQ0BO http://t.co/VQEwu8EZSh Have a good day. Zoran, VE3ESP -- View this message in context: http://elecraft.365791.n2.nabble.com/KXPA100-AMP-and-KXAT100-ATU-pics-and-info-tp7573015p7574627.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] New ham but seasoned CW r/o, between classic K2 and progressive KX3
Dear all, What can I say! I am overwhelmed by the friendliness and generosity of you all with offering your good advice, help, even offering to let me use your TXCVR for a while. And then, of course, overwhelmed by the almost-unanimous recommendation of one transceiver for my situation: the KX3. Well, my (pre-assembled) KX3 will be shipped on Monday, with ATU, roofing filter and charger. Serious learning will ensue to get my General ticket, and to get familiar with the KX3's features, of course. Both should be fun. Next major obstacle will be the antenna(e). Which, I hope, will also be fun. I will see (and hear). Again, thank you all. I have a hunch that I will be back with more questions ;) 73, Arno Kg7bjm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 VFO Calibration
I have completed the K2 and am in the process of VFO calibration I have a XG2 signal generator that I calibrated with a lab frequency counter. Here are my results Radio XG2 Difference (K2-source) 1460.00 14060.395 -0.395 7041.16 7040.55 0.715 3579.30 3579.223 0.077 WWV 1.29 1.00 0.29 To me this points out some non-linearity in the VFO. The question is whether I should correct the VFO and by how much. Tom KI6NRD K2 #7432 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB Net Announcement
The weekly SSB net will meet tomorrow (6/2) at 1800z on 14.3035 MHz. I will be net control from western Oregon. See you then. 73, Phil NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 VFO Calibration
Tom, Rather than relying on the XG3 to set your K2 VFO, turn to my website www.w3fpr.com article on K2 Dial Calibration for the procedure I use. I highly recommend using Spectrogram (or other audio spectrum analyzer) not only for aligning the filter passbands but also to determine when you have tuned accurately to the WWV frequency (use 15 MHz if you are able, the error is smaller than using 10 MHz. Note that there is a receive offset equal to your sidetone pitch used for CW mode which makes it very difficult to use a CW signal source when setting C22 - much better to use an AM station of known frequency such as WWV. If you need Spectrogram, look for the link at the bottom of my home page - the files are known to be clean - I have heard of some on the web that contain nasty stuff. The VFO will be quite linear if you follow the instructions in the article -- First set C22 correctly, then run CAL PLL, then run CAL FIL and 'change' each BFO to make the K2 read the BFO frequency into EEPROM based on the current setting of C22. Once both those processes have been run, there is no longer a dependency on the 4 MHz oscillator accuracy, the frequency display is based solely on the data in the EEPROM. 73, Don W3FPR On 6/1/2013 2:13 PM, Tom Field wrote: I have completed the K2 and am in the process of VFO calibration I have a XG2 signal generator that I calibrated with a lab frequency counter. Here are my results Radio XG2 Difference (K2-source) 1460.00 14060.395 -0.395 7041.16 7040.55 0.715 3579.30 3579.223 0.077 WWV 1.29 1.00 0.29 To me this points out some non-linearity in the VFO. The question is whether I should correct the VFO and by how much. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 + Panadapter + Navigator Interface???
I am trying to install my new K3/P3 into my station, where I rely on a Navigator USB interface. The Navigator has a cable for RS-232 and one for ACC. That leaves no place to plug in the Panadapter. Anybody have an answer? Thanks de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 + Panadapter + Navigator Interface???
Brian, The Navigator RS-232 cable plugs into the P3 RS232 connector marked PC and the P3 (XCVR RS-232 connector) is connected to the K3 via another RS-232 cable. The later cable is a male to female straight through type (RS232 Extender Cable). See page 13 of the P3 manual. 73, Don W3FPR On 6/1/2013 3:37 PM, Brian F. Wruble wrote: I am trying to install my new K3/P3 into my station, where I rely on a Navigator USB interface. The Navigator has a cable for RS-232 and one for ACC. That leaves no place to plug in the Panadapter. Anybody have an answer? Thanks de Brian W3BW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Modern K2 internal battery options
I'm also interested in this question. Hope something pops up. On 5/31/2013 19:01, PHILIP GRAITCER wrote: I have a K2 with the Elecraft internal battery. I think I'd like to replace the battery that's in there with one with more modern chemistry - has anyone found and installed a LiPO or similar cell that can fit in the space of the existing gel cell battery? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3 cable
Conclusion to lost (?) XG3 cable. With the pinout supplied by Dave, G3GJP, and some junk that I had in the shack I was able to make up the XG3 cable. The probable cause of my dilemma and solution was TOO MUCH JUNK in the shack. Think I'll spend the $30 bucks on dinner tonight. Anyone needing the pinout can contact me and I will pass it along. 73 Howard..K2HK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] xv222 shuts down
I have an xv 222 transverter that will shut down after transmitting for about a minute. Using FM for testing. The front panel just goes dark and I need to power cycle the k3 to get it back. I am using a K3 to drive both 222 and 432 transverters. Also, when going through the alignment process, R22 should be between .1 and 10 volts. When I adjust this the voltage will jump from about 7 to 18 volts. I discovered it had been running at this higher setting and getting about 18 watts output. When I roll the voltage at TP5 down to the correct range I get almost no output from the xvter. Any idea's. All other voltages look ok. Dave N6TEB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Low Output Power solved
Turned on my K2 after about 4 months of not being used. No evident output power! The rig has worked well without issues for several years since I built it. Checked with dummy load and was actually putting out about 200mW. Searching archives, found similar problem mentioned with Don suggesting to follow manual procedures to get some data. Nil RF at Q5 sollector, DC voltage fine, D1 anode RF high. Pushed on D1 with plastic tuning tool and output came back, intermittent. Reflowed solder on D1 connections, all good now. Bottom line, Don's advice spot on, manual procedures work, most problems caused by poor soldering by the builder (me). I have identifies (soldering) problems on many rigs (that I didn't build) by pushing and prodding components with a plastic tuning tool. 73, Curt KB5JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Joe is right... Maxwell's equations relate time dependant electrical and magnetic fields. If B is changing with time, E cannot equal zero everywhere in space and if E is changing with time, B cannot be zero everywhere in space (otherwise you can not fulfill the two equations for the curl of the fields). So, no B without E and reverse (if there is some time dependance which is the case for hf). If you calculate the field strength for a given current distribution, you can make some simplifications that lead to field components changing with the inverse of the cube of the distance (1/r^3), field components changing with one over the square of the distance (1/r^2) and components changing with 1/r (the far field radiated by the structure). For short distances to the antenna, the 1/r^3 and the 1/r^2 terms are the dominating ones and form the near fields. The difference between an elementary electrical and a magnetic dipole is that, for very short distances to the antenna (reactive near field, less than about 1/6 wavelength), the leading term (the 1/r^3 term of the field expansion) is a purely electrical field for the electrical antenna and a purely magnetic field for the magnetic antenna. So, the most efficient coupling for the magnetic antenna would be a conducting loop (if properly oriented), but a straight conductor for the electrical antenna. There is some limited control for this coupling to nearby conductors by switching from electrical to magnetic, but the next important term for rather short distances is the 1/r^2 term of the field expansion, and both the magnetic and the electrical elemetary dipoles show both an electrical and a magnetic field component with this 1/r^2 behaviour. So both antennas can couple to straight conductors or loops via this part of the field in the same manner, only the absolute amount of coupling (coupling constant) might be different. Conclusion: you have some (limited) control on the 1/r^3 part, which is purely magnetic for a magnetic antenna and purely electrical for an electrical antenna, but you will have this 1/r^2 coupling for both a magnetic and an electrical antenna, meaning you can not generally eliminate the coupling to nearby conductors just by using a dominantly magnetic antenna or a dominantly electrical antenna. Vy 73 Ralf, DL6OAP Am 01.06.2013 um 19:46 schrieb Joe Subich, W4TV li...@subich.com: Whether the field is predominately magnetic or electric, it must still couple to the environment around it or the antenna *will not* radiate. whilst the same folding that is responsible for the low feed impedance and low efficiency will result in more cancellation close to the antenna than at greater distances, the antenna will still have *significant coupling* to any conductive element in its immediate environment (near field). If that were not true, yagi antennas would be impossible and phased arrays would be easy to design because one could ignore mutual impedance. 73, ... Joe, W4TV On 6/1/2013 6:23 AM, David Woolley (E.L) wrote: Joe Subich, W4TV wrote: The near field (basically within the range where it follows an inverse cube law) can be predominantly magnetic or predominantly electric in nature. Whilst the ratio of electric and magnetic fields in the far field is constrained to 377 ohms per square, that is not true in the near field. No. If the field is not able to couple to nearby objects, it is not able to radiate (couple to) distant receivers. The statement flies completely in the face of physics. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 meter alignment issue
Don just by way of update, I have now tried again to do the CAL S LOW and CAL S HI here are the results. The CAL S LOW reading is now at 164 The CAL S HIreading is now at 23 Some odd things that have happened. 1. I adjusted R1 to get a voltage at U2 pin 5 of 3.80 volts. When this was done I was back to the old bad readings again. CAL S LOW of 255 and CAL S HI of nothing at all it just would not work for me I was not able to any LED bars to light when the RF gain was turned fully clockwise. 2. I then adjusted R1 so U2 pin 5 was back to 3.74 and then I tried to adjust again and still no luck 3. I then removed the boards again and looked at them as they were put back together. I did notice J8 was not seated fully. As I looked I found (looking from the back of the rig) the 2D fastener on the right side had a washer on it and it was under the control board and not allowing J8 to seat flush. I loosened the phillips screw and moved the washer forward and out from under the control board.When I put it back together all was working well again and I was able to align the S meter. 4. The last thing was after the alignment was done I came back to the radio and turned the RF gain fully counter clockwise and the S meter would not go to 10 but was flashing between 9 and 10 bars. I then went into CAL S HI and tweak it a bit from a reading of 23 to 22. All seems to be ok now. That's where I stand at the moment Don. Mike -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-meter-alignment-issue-tp7574472p7574639.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] Navigator and K3
OK, I have my K3/P3 and Navigator correctly hooked up, I think. I am able to receive digital signals like PSK31, no problem. I cannot seem to get any RF output using the Navigator to my P3. I probably have some parameter set up wrong. Any ideas? Tnx de Brian W3BW *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] New Paddle for KX3 and other
Hallo Friends, a new nice paddle for the KX3 was born: http://www.palm-radio.de/english/eppaddle.html And here a video with the new paddle: http://m.youtube.com/watch?v=cRrv43aQxaEfeature=plcp I am a happy user of this nice thing. 73 de Karl-Heinz, DK5LP / AK5LP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
Actually, you have confirmed my point by showing that, in the near field, magnetic loops and electric dipoles interact very differently, thus may have rather different EMC behaviour. I was not disputing that the far field component interacts at short distances. I was only saying that the near field component can make the total interaction significantly different. -- David Woolley Registered owner of K2 06123 Ralf Wilhelm wrote: Conclusion: you have some (limited) control on the 1/r^3 part, which is purely magnetic for a magnetic antenna and purely electrical for an electrical antenna, but you will have this 1/r^2 coupling for both a magnetic and an electrical antenna, meaning you can not generally eliminate the coupling to nearby conductors just by using a dominantly magnetic antenna or a dominantly electrical antenna. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] cobweb antenna
I was only saying that the near field component can make the total interaction significantly different. That is not the point here ... whether the antenna is an electric or magnetic radiator, it *will* interact with items in the near field. *Further* the cobweb is an electric radiator just like any other dipole or yagi and will interact with its environment in the same way as any other *reduced size* antenna. Again, the folding may result in some field cancellation in the immediate environment but that is nothing more than a symptom of *reduced efficiency* just like *any other reduced size antenna.* 73, ... Joe, W4TV On 6/1/2013 5:41 PM, David Woolley wrote: Actually, you have confirmed my point by showing that, in the near field, magnetic loops and electric dipoles interact very differently, thus may have rather different EMC behaviour. I was not disputing that the far field component interacts at short distances. I was only saying that the near field component can make the total interaction significantly different. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 meter alignment issue
Mike, That is good news. It sounds like the connector passing the RF Gain lines between the control board and the RF board was the problem - high resistance in the contact - they must be fully seated. 73, Don W3FPR On 6/1/2013 5:06 PM, VE3WDM wrote: Don just by way of update, I have now tried again to do the CAL S LOW and CAL S HI here are the results. The CAL S LOW reading is now at 164 The CAL S HIreading is now at 23 Some odd things that have happened. 1. I adjusted R1 to get a voltage at U2 pin 5 of 3.80 volts. When this was done I was back to the old bad readings again. CAL S LOW of 255 and CAL S HI of nothing at all it just would not work for me I was not able to any LED bars to light when the RF gain was turned fully clockwise. 2. I then adjusted R1 so U2 pin 5 was back to 3.74 and then I tried to adjust again and still no luck 3. I then removed the boards again and looked at them as they were put back together. I did notice J8 was not seated fully. As I looked I found (looking from the back of the rig) the 2D fastener on the right side had a washer on it and it was under the control board and not allowing J8 to seat flush. I loosened the phillips screw and moved the washer forward and out from under the control board.When I put it back together all was working well again and I was able to align the S meter. 4. The last thing was after the alignment was done I came back to the radio and turned the RF gain fully counter clockwise and the S meter would not go to 10 but was flashing between 9 and 10 bars. I then went into CAL S HI and tweak it a bit from a reading of 23 to 22. All seems to be ok now. That's where I stand at the moment Don. Mike -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-meter-alignment-issue-tp7574472p7574639.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] xv222 shuts down
Dave, Can you measure how much current is being drawn by the XV222? It sounds like the resettable fuse is being tripped. That could be either due to a fault or due to excessive heating of the PA module. The max output should be reduced for FM operation. In addition - the XV222 was designed for the low end of the band, not higher up in the FM portion. That means that the output Low Pass Filter may be tuned for a cutoff frequency lower than where you were operating. Should that be the case, excessive current and lower output would be a result. 73, Don W3FPR On 6/1/2013 5:00 PM, Dave Glenn wrote: I have an xv 222 transverter that will shut down after transmitting for about a minute. Using FM for testing. The front panel just goes dark and I need to power cycle the k3 to get it back. I am using a K3 to drive both 222 and 432 transverters. Also, when going through the alignment process, R22 should be between .1 and 10 volts. When I adjust this the voltage will jump from about 7 to 18 volts. I discovered it had been running at this higher setting and getting about 18 watts output. When I roll the voltage at TP5 down to the correct range I get almost no output from the xvter. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 meter alignment issue
Don just wanted to say thanks very much for your time in assisting me getting to the bottom of the problem. Mike -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-meter-alignment-issue-tp7574472p7574645.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] Navigator and K3
Brian, Are you using the K3 Line In and Line Out connectors? If so, the Navigator must be configured for line level output. You can check the audio input in TX Test mode - bring up the audio drive (and the Line In gain) enough to illuminate 4 bars on the ALC meter (that is NO ALC for the K3). The 5th bar might flicker a bit and that indicated the proper level. 73, Don W3FPR On 6/1/2013 5:06 PM, Brian F. Wruble wrote: OK, I have my K3/P3 and Navigator correctly hooked up, I think. I am able to receive digital signals like PSK31, no problem. I cannot seem to get any RF output using the Navigator to my P3. I probably have some parameter set up wrong. Any ideas? Tnx de Brian W3BW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Use K3 receiver with separate Transmitter?
Would it be possible to use the K3 for a receiver only when using a separate transmitter? Would like to use the K3 to receiver with a separate AM transmitter. thanks, K4BX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KPA500 how to keep it on
would like to no if the KPA500 can be programed to turn back on if the power gos off and then back on. Im going to try to use it remote but right now it keeps turning off and I half to keep manually turning it back on. I have it running on Remoterig and using Elecraft utilitys, operate but after its bin off for 10 or 15 minutes it stops and I have to manually turn it back on. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Use K3 receiver with separate Transmitter?
Yes. There is no direct way to mute the K3. The workaround is to place the K3 transmitter in TEST. Use contacts on the T/R relay to close the PTT line, which will mute the K3 receiver. It will actually be in transmit, but won't since it's in TEST. Of course, you also need to provide antenna switching external to the K3, as you would with any other BA receiver. Grant NQ5T Sent from my iPhone On Jun 1, 2013, at 9:42 PM, Bill K4BX k...@live.com wrote: Would it be possible to use the K3 for a receiver only when using a separate transmitter? Would like to use the K3 to receiver with a separate AM transmitter. thanks, K4BX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Weekly Report and Announcement
Good Evening, The sun has returned to northwestern Oregon. After a week of cool, wet weather it feels good to be outside without a jacket. Propagation has been changing. Reports of sporadic E openings have me listening on 6 meters. Thirty meters is more noisy while twenty seems to have gotten quieter. I'll bet the storms across the Midwest will be prevalent on forty meters tomorrow. Between the Memorial Day weekend, the contest, and the storms, last week's net attendance was sparse. With conditions changing I hope to be able to work further east tomorrow. Next week will be the tenth anniversary of the nets. What a lot of dits :) Please join us tomorrow afternoon and evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) Sunday 2200z (Sunday 3 PM PDT) 14050 kHz Monday 0100z (Sunday 6 PM PDT) 7045 kHz Stay well, Kevin. KD5ONS ^^ Elecraft CW Net Report for May 27th, 2013 On 7045 kHz at 0100z: K0DTJ - Brian - CA - K3 - 4113 N0TA - John - CO - K3 - 994 - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Use K3 receiver with separate Transmitter?
Bill, Yes, that should be quite possible, but you will have to arrange for external T/R switching. To mute the K3 during transmit, I would suggest putting the K3 into TX test and applying the external T/R switching mute signal to the K3 PTT input. You should be able to use either the normal K3 antenna input or the RX Ant input for receive. 73, Don W3FPR On 6/1/2013 10:42 PM, Bill K4BX wrote: Would it be possible to use the K3 for a receiver only when using a separate transmitter? Would like to use the K3 to receiver with a separate AM transmitter. thanks, K4BX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] No one was home on Saturday
I was in Watsonville on Saturday morning, but no one was home at Elecraft. I hope you were all out enjoying the nice weather! 73, David AJ4TF K2 7006 -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-No-one-was-home-on-Saturday-tp7574653.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
