Re: [Elecraft] RSGB HF Convention
Bring one for a demo station - I'll supply the computer and software. Simon Brown, HB9DRV --- www.hb9drv.ch, www.laax.ch - Original Message - From: Stewart Baker [EMAIL PROTECTED] Have just returned from the RSGB HF Convention. My first visit last year was good, but this year it was even better. Lots of good mentions of the K2 in presentations. It was a pleasure meeting those with K2's and those either building or contemplating building one Great time. Maybe next year we can all get together on some more specific K2 programme. Best 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re: RSGB HF Convention
On 10 Oct 2005 at 4:01, G3RXQ wrote: Have just returned from the RSGB HF Convention. My first visit last year was good, but this year it was even better. Lots of good mentions of the K2 in presentations. It was a pleasure meeting those with K2's and those either building or contemplating building one Great time. Maybe next year we can all get together on some more specific K2 programme. Best 73 Stewart G3RXQ Yes I also had a most enjoyable weekend. I gave a presentation there on general QRP operating, as a means to encourage the big DXers that there is a lot to be done with 5W and a K2. This was not a talk about the K2 per se, but it was there - no real opportunities for a real antenna and the few feet of wire I attached received nothing, but that wasn't the point - the KAT2 could still match it! Not sure if you were among the many who complemented me on my talk, I lost count. Maybe next year we can have a more K2 orientated presentation, but a 45 minute slot is rather short and you have to miss a few things out (just like the things I forgot..). And yes, reading another message, don't let on you are QRP before you start the QSO. Signing /QRP is out, all those who do get 449 reports, those who don't get 599 like everybody else. Just as I said at the convention on Saturday. You will find a few pictures of the convention and other things on my QRP page - http://www.davesergeant.com/qrp/qrp.htm 73 Dave G3YMC http://www.davesergeant.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RSGB HF Convention
Sounds good to me... 73 Stewart G3RXQ On Mon, 10 Oct 2005 09:30:41 +0100, Simon Brown wrote: Bring one for a demo station - I'll supply the computer and software. Simon Brown, HB9DRV --- www.hb9drv.ch, www.laax.ch - Original Message - From: Stewart Baker [EMAIL PROTECTED] Have just returned from the RSGB HF Convention. My first visit last year was good, but this year it was even better. Lots of good mentions of the K2 in presentations. It was a pleasure meeting those with K2's and those either building or contemplating building one Great time. Maybe next year we can all get together on some more specific K2 programme. Best 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: very small antenna
Might I suggest something less commercial... haul a collapsible crappy fishing pole and some wire. You can make a vertical, you can make a loop, you can make an inverted vee. You have flexibility and it's a lot cheaper than commercial minature antennas (probably will work a lot better as well). JMO. 73, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: Question about circuit boards for CW tuning indicator
Hi Bill: Hello! I am curious about where I could buy the blank circuit board for the thru-hole version of the visible CW tuning indicator. Does Far Circuits carry them? I have a thru-hole board design for this circuit. It's somewhat larger than the SMD version, but works just as well. I don't think I have any board currently in stock, but I can knock out a few for you... $6 each ppd to your mailbox. I don't think I'd try to fit a thru-hole PC board into the KX1... even the SMD version is a bit tight, and the thru-hole version would be quite a challenge, I think. I have several radios around that could benefit from this (a KX1, Kenwood TS-830S, even an old Drake TR-4C) and I wanted to experiment with adding an op-amp and tiny microphone upstream of the tuning indicator so that I could build it into it's own box, with power supply (probably battery) and it's own LED. That way, I could simply set it out on the table and watch the LED to see it flash with the incoming CW when I am spot on. These rigs have different offsets (Kenwood is 800 Hz, I run my KX1 at 600, Drake is way up there at about 1K and not adjustable) so I would add a fairly well calibrated spot frequency adjustment. You'll probably want to include a THRESHOLD control in an external version... the PLL IC is very(!) sensitive and it doesn't take much drive at all to start it working, and not all that much to overdrive it as well... that's why we've been trying to install them in the input to the AF amp, rather at the output (as in the KX1), which does require some 'padding' of the input level to 'tame' things a bit. I would rather not build one for each rig and have to build them in. This way of doing it sounds feasible to me. I would appreciate any comments you might have. To see the PC board layout and K2 installation info, go to my web site at www.n0ss.net and drop down just a bit from the very top, to the Quik Links. Click on the Quik Link titled K6XX LED CW Tuning Indicator (Thru-Hole version Installation), and that will take you to the actual PDF which you can then download and view. 73, Tom N0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft: Z Match tuner
Hi Guys, I have moved my shack to an upstairs bedroom and consequentially I will need to feed my 130 feet wire at the end rather than at the centre (it was a dipole fed with coax). I want to work 80/40/20m. I have made some open wire feeder (about 15 feet) to get me from the chimney to the bedroom and have left one end of the open wire feeder open circuit. I think I am making a Zepp antenna. Now to match this arrangement to my K1 on the above bands, I want to build a tuner. I have just been looking at the design on this web site (http://www4.tpgi.com.au/users/ldbutler/SingleCoilZMatch.htm) and it looks just the ticket. It is suitable for balanced lines and would allow QRO up to 100W in the future. Before I commence construction I just want to check that it will match the very high Z of an end fed half wave wire. Any thoughts. Martin M0KWV K1 #1534 Why not take a look at our Web site? http://www.simoncarves.com * The information in this email and any attachments may contain privileged and/or confidential information intended solely for the use of the individual or entity to whom it is addressed. If the reader of this email is not the intended addressee, or the employee or agent responsible to deliver it to the addressee, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me by telephone or email and delete all copies immediately. * ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] k2 offset frequency, and FISTS
Q #1: why is 500-600 hz offset reccommended by the manual.? What's wrong with, say, 750 hz? Q #2: What is, or who are the FISTS ops, and what freqs? Is this a joke? Tks, George, N4YM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] k2 offset frequency, and FISTS
George, A#1: There is nothing wrong with 750 Hz if that suits your ears better. Most of us feel that is too high for comfort. In fact, that pitch was 'forced' on us by earlier transceivers that tried to use the same BFO crystal for both SSB and CW. Thankfully, the K2 and K1 give us a choice. Just be certain to do all your filter alignment around the higher pitch or you may find your more narrow filters unusable. On #2, you will have to ask someine associated with FISTS, I am not. 73, Don W3FPR -Original Message- Q #1: why is 500-600 hz offset reccommended by the manual.? What's wrong with, say, 750 hz? Q #2: What is, or who are the FISTS ops, and what freqs? Is this a joke? Tks, George, N4YM -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Elecraft: Z Match tuner
Martin, To be a Zepp antenna, the parallel feedline would have to be an odd multiple of a quarter wavelength, and that quarter wave a;so serves in place of a 'counterpoise wire', so your 15 feet is a futile effort in that regard. Just as well to use a single wire for the 15 feet to the end (and thaat makes your end fed antenna 15 feet longer too). You will also need something for a ground reference from your 2nd floor shack location. A ground (earthing)wire will have length to it and that causes it to NOT be a good RF Ground. You may have to resort to using a counterpoise wire cut for each band. Cut one insulated wire to 66 feet (80 meters), another to 33 ft (40 meters) and another to 16 ft (20 meters). Connect one end all of these wires to the ground point on your tuner, and fan out the other ends as best you can. Keep the far end of the wires insulated and away from reach of people and pets because they will have high RF voltage on those ends. You may have to trim the wire length a bit to make them resonant on each band, but doing so will eliminate RF in the Shack. 73, Don W3FPR -Original Message- Hi Guys, I have moved my shack to an upstairs bedroom and consequentially I will need to feed my 130 feet wire at the end rather than at the centre (it was a dipole fed with coax). I want to work 80/40/20m. I have made some open wire feeder (about 15 feet) to get me from the chimney to the bedroom and have left one end of the open wire feeder open circuit. I think I am making a Zepp antenna. Now to match this arrangement to my K1 on the above bands, I want to build a tuner. I have just been looking at the design on this web site (http://www4.tpgi.com.au/users/ldbutler/SingleCoilZMatch.htm) and it looks just the ticket. It is suitable for balanced lines and would allow QRO up to 100W in the future. Before I commence construction I just want to check that it will match the very high Z of an end fed half wave wire. Any thoughts. Martin M0KWV K1 #1534 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: Poor Man's Spectrum Analyzer
Hi Matt, you can find a DOS program called 'atten_22.zip' by OH0NC at http://www.rmham.org/files/misc/index.html. This enables you to calculate a Pi or T pad for a given input and output impedance. Note that if the input to output transforming does not correspond to your specified attenuation, you get negative resistor values. In this case increase the attenuation. vy 73, Alex DF2UZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS K-2
For Sale my K-2 (s/n 00778 with Rev B updates to PLL, IOC firmware, etc) ATU and noise blanker for $525. Unit is in excellent condition and works like a charm! John W9FHA [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] F.S. 100 Mhz dual channel O'scope...
Hi All, I have an 100 Mhz BK Precision Oscilloscope, model 2190A, for sale, that I no longer use. It is a dual channel analog scope (with a third channel for external triggering if needed), and in excellent physical and 100% electronic condition. The specifications are almost identical to the BK Model 2190B - front panel layout is different; URL for the 2190B is http://www.bkprecision.com/www/np_specs.asp?m=2190B I also have two brand new 1x-10x probes with their accessories that go with it. No manual but I there is an oscilloscope How To guide on the BK site and a copy of the 2190B users guide is also there... I can email .jpg pictures to those who may be interested. The current market used price is about $650. I'm asking $525 + 1/2 the shipping cost CONUS OBO, it weighs about 25 lbs so it would go UPS ground. E-mail me direct and please put 'scope' in the subject line to get through my spam filter. Thanks de Dave KK7SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Poor Man's Spectrum Analyzer
Matt You could consider making a 5 dB pad that also matchs from 50 to 75 ohms. 5 dB would not sacrifice too much sensitivity, and it would be very broadband, being nothing but three resisters. Good luck and 73 Bob N6WG -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Matt Osborn Sent: Sunday, October 09, 2005 7:43 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Poor Man's Spectrum Analyzer The Poor Man's Spectrum Analyzer I'm building uses a varacter driven cable tuner as its front end. The cable tuner has an input impedance of 75 ohms. Most instruments have 50 ohm input impedance and my usage will be primarily with 50 ohm devices. Maybe it isn't worth worrying about, but I'm looking for a convenient way to convert from 75 ohm to 50 ohm input impedance. I've seen some writeups on building a 50 ohm to 75 ohm broadband unun, but the articles were incomplete (or my knowledge level is too low to recognize a complete article). The analyzer covers 5MHzto 500MHz. Does anybody have any advice? Leave it alone, build an unun, buy an unun, any other options? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Setting RTTY Filters
The key to setting these filters is to understand what is being used to generate the RTTY or AFSK tones. In my case, a KAM, as I indicated initially, was used for RTTY. This means that the KAM must be fed 2125Hz tones from the K2, then shift down if RTTY normal and up if RTTY reverse by 170 Hz. Don, W3FPR, gave me a clue when he indicated I should set the markers in Spectrogram at 400 and 2400 and place the RTTY filter using CAL FIL and Band- to get to the BFO setting. Doing this allowed me to receive RTTY tones with OPT1 filter in the RTTY position. I then proceeded to set the width of FL2 and adjust the BFO, again centering the display in Spectrogram around 2125 or, put another way, placing the filter display so that it covered all frequencies of the RTTY tones for proper input to a KAM. I then set filter 3 and filter 4 in the same way. I selected OPT1 for FL1, 1500Hz for FL2, 800Hz for FL3 and 450Hz for FL4. I found in each case I needed to readjust the BFO setting for filters FL2 through FL4. I also found that 450Hz is mighty tight for tuning with a KAM but I sat here listening to a RX3 call CQ. Thank goodness his signal was on as it eased my problem of setting the filters. The key is a KAM TNC and the tones it must see. Other programs, like MMTY or others, allow much more flexibility in where to set the center of the RTTY filter passband. If I go to MMTY one of these days, I will have to do this exercise again but at least I know am confident in setting the filters. Hope this helps someone struggling with setting RTTY filters for use with an external TNC. 73, Charlie, W0YG.. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] 3 element beam
No, I had expressed two different opinions. First, I was responding to the question of whether a 3 ele beam was better for QRP than a vertical. And in an aside, I had remembered that mc was looking for a SMALL antenna for use at sea. Obviously, a yagi isn't a small antenna at HF. I was remarking that some of the antennas, like the PAC-12, work very well portable, but at sea would probably fall apart. QSB would be the least of problems in 50 foot waves. Hi. Eric KE6US www.ke6us.com -Original Message- From: J F [mailto:[EMAIL PROTECTED] Sent: Monday, October 10, 2005 4:54 AM To: [EMAIL PROTECTED]; Elecraft Discussion List Subject: [Elecraft] 3 element beam An 80M vertical at sea... be still my throbbing heart! I'm curious Eric, are you aware of many (any) 3 element yagis on oceangoing vessels? Seems like that antenna would take some severe punishment, depending on where one sailed? I can visualize serious QSB in 50 foot waves... Cheers, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] very small antenna
Julius n2wn wrote Might I suggest something less commercial... haul a collapsible crappy fishing pole and some wire. You can make a vertical, you can make a loop, you can make an inverted vee. You have flexibility and it's a lot cheaper than commercial minature antennas (probably will work a lot better as well). Nothing has to be commercial, unless it's easier and cheaper in time and effort to go that route. Got the poles, the wire, trees, tuner... a wire over a tree ALWAYS works better than a 7 foot loaded vertical over no radials. On the other hand, I can walk around with an MP-1 and keyer paddles fastened on a radio and operate on the move. As you can see from the pictures at HFPack, some folks have really elaborate walking-about antennas, not that mine looks less silly; an antenna sprouting from one's belly _is_ a bit unusual. Cortland KA5S ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] New 2006 ARRL Handbooks are in and include a Free 1926 Handbook Reproduction
We've just received our first shipment of 2006 ARRL Handbooks. (Both Hardbound and softbound versions.) As a special promotion, the ARRL is also including a FREE reproduction of the 1926 first edition ARRL handbook. It looks like it just came off the press! (I'm not sure how long the ARRL will be running this special, so order soon if you are interested in getting the 1926 handbook reproduction. :-) ARRL and other books can be ordered from the Elecraft on-line book order page at: http://www.elecraft.com/order_form_books.htm 73, Eric WA6HHQ http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] More problems with the rtty filters this time PSK31
Hi all I am fairly new to the K2 and have been playing with PSK31 on mine for a week or so, It works great with the K2 just running 5 watts or so but…. When I use the SSB filter OPT1 I net onto the station I want to work and they come right back, if I look at the water fall I can see the trace of their signal But if I then select a narrow filter (I guess im then using the CW filters) I can see a small move in freq of their trace (about 30Hz) And I need to retune, I understand that in TX mode the SSB filter is used all the time so I then have a difference between my TX and rx freq, any one any ideas what I can do to put this right (other than use the RIT) I use the RTTY mode so that the compressor is set to 1:1 on psk tx. Any help would be great 73 Paul M0BMN -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 09/10/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 opinions sought
Hi, I'm in the process of designing an interface for my K2 that would bring functions, currently enabled or changed by tapping keys or holding keys, to independent controls. I am also going to bring some functions, that are enabled by navigating through the menu system, to single button/switch functions. I am doing all of this to bring a big radio feel to my small and capable K2. I would like to find out which functions you would like to see implemented with a single control. As an example, instead of tapping the mode button to select USB, LSB, or CW, I will just turn the rotary switch to the desired mode. Thanks for your input. Mike, WA1SEO K2-4778 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 opinions sought
Mike, Unless you are dead set on doing that in a hardware interface, try Ham Radio Deluxe or the N4PY software - what you want to achieve is already programmed into them (or can be customized for that function). If you wish to create a hardware interface, I might suggest that the easiest path is to have the new hardware buttons buttons interface with a microprocessor that in turn sends the appropriate commands ot the K2 through the KIO2. To do a direct hardware implementation without the processor, one would have to provide a lot of connections and signals to the K2 microprocessor, and that would take more circuits that it is worth in my opinion. 73, Don W3FPR -Original Message- I'm in the process of designing an interface for my K2 that would bring functions, currently enabled or changed by tapping keys or holding keys, to independent controls. I am also going to bring some functions, that are enabled by navigating through the menu system, to single button/switch functions. I am doing all of this to bring a big radio feel to my small and capable K2. I would like to find out which functions you would like to see implemented with a single control. As an example, instead of tapping the mode button to select USB, LSB, or CW, I will just turn the rotary switch to the desired mode. Thanks for your input. Mike, WA1SEO K2-4778 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] More problems with the rtty filters this time PSK31
Paul, With PSK31 (or any of the soundcard digital modes), the normal up to 30 Hz shift of tones when switching from filter to filter can be bothersome. This small shift is inherent in the digital control of the K2 VFO and BFO frequencies, and can be expected. The 'cure' is not in the K2, but in how you use the PSK31 software, and you have 2 choices (or you can use both): 1) Set the program control to Lock the transmit frequency after you tune a signal and before transmitting for the first time. When you switch filters, you can then click again on th edesired (but now shifted) signal and your transmit frequency will not be changed. 2) Set the narrow filter first - and use the K2 VFO knob to do your tuning - i.e. click on 1000 Hz on the waterfall display and lock the software transmit frequency to this 1000 Hz point, then tune across the PSK31 band with the K2 VFO and position the desired signal at that 1000 Hz point. The advantage of this second method is that the narrow filter improves the signal to noise ratio and keeps nearby strong signals from activating the receiver AGC - often, in addition, the RF gain may be reduced too, further reducing the AGC effect from a really strong signal still in the passband and may allow copy of a weak signal next to a strong one. I know it is a little more bother, but it works well for me. 73, Don W3FPR -Original Message- I am fairly new to the K2 and have been playing with PSK31 on mine for a week or so, It works great with the K2 just running 5 watts or so but…. When I use the SSB filter OPT1 I net onto the station I want to work and they come right back, if I look at the water fall I can see the trace of their signal But if I then select a narrow filter (I guess im then using the CW filters) I can see a small move in freq of their trace (about 30Hz) And I need to retune, I understand that in TX mode the SSB filter is used all the time so I then have a difference between my TX and rx freq, any one any ideas what I can do to put this right (other than use the RIT) I use the RTTY mode so that the compressor is set to 1:1 on psk tx. Any help would be great 73 Paul M0BMN -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.13/126 - Release Date: 10/9/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KAT100 KPA100 integration question
I have read the KAT100/KPA100 description by KK7P, as well as various reflector postings. However, the KK7P description covered several configurations, including operating a K2 with only the KPA100 in an EC-2, as well as with a KAT100 KPA100 integrated in the EC-2. Thus, I'm still not clear on a couple things. I want to remove the KPA100 from my K2 and install it in the KAT100-2 enclosure. Since I will NOT be using any type of computer control, is it still necessary to install a KIO2 in the K2 and beef up the handling capacity of the RF choke? Or, Is it sufficient to merely make the internal EC-2 interconnections as described in the KK7P description, and use the same control cable (which does not include the branch cable for connection to a PC) between the barefoot K2 and the EC-2 combo that I formerly used when operating the KAT100 (in the EC-2) and the KPA100 (in the K2). Am I correct that I can connect the control cable to EITHER the KPA100 DB-9 or the KAT100 DB-9, in the EC-2? Thanks. Bob, WO3E ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Poor Man's Spectrum Analyzer
On Sun, 09 Oct 2005 21:42:52 -0500, Matt Osborn [EMAIL PROTECTED] wrote: The Poor Man's Spectrum Analyzer I'm building uses a varacter driven cable tuner as its front end. The cable tuner has an input impedance of 75 ohms. Most instruments have 50 ohm input impedance and my usage will be primarily with 50 ohm devices. Thanks to all for the fine ideas and proposed solutions. Greg's suggestion of the Mini-Circuits ADT1.5-1 seems to be the exactly what I need. This is a _really_ great group! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE:Bandscope program for the K2
Bandscope is an application in Microsoft Visual Basic that gives a graphic representation of activity surrounding your operating frequency using the K2's serial interface. A KI02 or KPA100 is required. I think just about everyone has their copy by now so this will be the last time it will be offered on the reflector. It is offered completely free and without charge. No warranty given or implied. Use at your own risk. The zip file contains appropriate instructions. Again you may pass it to your friends, but please no download sites without the permission of the author, namely me. Again, please forward your requests off the reflector, direct to me, [EMAIL PROTECTED] or [EMAIL PROTECTED] and I will email you the zip file. You request is your registration as a user of the program. If your isp does not like zip files, please provide an alternate e-mail address. 73s Jim, W4ATK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k2 offset frequency, and FISTS
Thanks for the info on FISTS. So, this prompts another question. Since 14.060 is the QRP frequency and (before I had my K2) while operating rockbound at 14.060 I heard many folks instead of calling CQ and signing QRP they were looking for other FISTS. Why do they use 14.060 instead of their published 14.058? I generally don't answer them if they are specifically calling for FISTS, but do they answer calls otherwise as well? I'm sure there are many QRP/FISTS members here as well that may be able to clear this up for me. Mark, NK8Q K2 4786 RockMite-40 -20 KJ7BS wrote: The FISTS calling frequencies are as follows: 20m*14.058 MHz ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k2 offset frequency, and FISTS
Mark, I never call CQ FISTS unless it's a FISTS contest; and that may be what you heard. When there's a contest going on, everyone has to spread out a bit. Mosts FISTS will QSO with anyone, whether they're a FISTS member or not, Heck, it's a good recruitment tool! Unfortunately, I have heard of instances where fellow FISTS, hellbent on collecting FISTS numbers, have refused and have only hurriedly QSOd with a non-member. Fortunately, I can count the number of times I have heard this on the fingers of one hand. For the most part, the folks I know from FISTS are 'salt of the earth types of folks and will QRS to a slower speed, if you need. 73 de Larry W2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] milliwatt fun
here is the link I found; http://www.arrl.org/tis/info/qrpwhtwy.html http://www.madisoncounty.net/~kj5tf/howto.html Mike MC -- KB7DPC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: FISTS
Hi Mark, It best to join FISTS and get a membership number. The number is good for life even if you subscribe for only a year. This way you can CQ with anyone nearby on frequency. 14.058 and 14.060 are only guidelines. Activity can be plus or minus due to propagation, RFI, ongoing QSOs, etc. At his QTH he may hear something on 14.058 that you can't hear, so its an unusuable frequency for him. FISTS is really a nice group of people. Remember that during the QRP foxhunts we try to take up from 7.030 all the way up to 7.050, so we don't stick to our one gentleman's agreement frequancy either. ;0) If you want to get Worked All States with your Rockmites, having a FIST number can be really beneficial. Regards, Steve, W2MY -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, October 10, 2005 5:47 PM To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net; [EMAIL PROTECTED] Subject: Re: [Elecraft] k2 offset frequency, and FISTS Thanks for the info on FISTS. So, this prompts another question. Since 14.060 is the QRP frequency and (before I had my K2) while operating rockbound at 14.060 I heard many folks instead of calling CQ and signing QRP they were looking for other FISTS. Why do they use 14.060 instead of their published 14.058? I generally don't answer them if they are specifically calling for FISTS, but do they answer calls otherwise as well? I'm sure there are many QRP/FISTS members here as well that may be able to clear this up for me. Mark, NK8Q K2 4786 RockMite-40 -20 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.14/127 - Release Date: 10/10/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] milliwatt fun
mc wrote: here is the link I found; http://www.arrl.org/tis/info/qrpwhtwy.html Wow! I gave the ARRL article a quick read through. While there was some valuable information in the article, there sure also was a lot of the old wive's tale in it As far as removing calling CQ from your vocabulary? Ptosh! I call CQ just about every night! And so far this year, I've had at least one QSO a day, since January 1. My feeling is that unless there's a total radio blackout, the band is going to be open to somewhere. And the odds are that your signal will be decent to someone, somewhere. Why not call CQ? Seems stupid not to, to me. And signing /QRP ?? mc, you said it best yourself this morning ... Never tell them up front you are QRP. It's an ancient Black Magic incantation that makes people deaf. I never try to advertise that I'm QRP unless it's a QRP Sprint. Finally, The poorest choice for the QRPer is the vertical antenna. Hmmm . using my Butternut vertical is what got me the QSO I used to join the MPW Club; and it works FB for me in the Foxhunts. Okay, a Yagi and a 100 foot tower would make life easier; but I think the poorest choice of antenna for a QRPer is something more akin to a wet string. 73 de Larry W2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Hi current/low power out on 20 meters w KPA100
What was the final resolution to the high current/low power out condition? I swapped C80 and C81, but this did not cure the problem. I recall someone saying that the problem was with two resistors (r20/21?). Is this the case? 73 Gregg ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] milliwatt fun
I worked an op the other day who gave me a 579 during the first go around. I talked about the mountain, my name, the weather. He came back with rig and antenna information. So I replied with rig here KX1 and a bit more about life in general. His next question was how much power was I running. So I told him I had no clue (the truth) but that I was running with a newly charged 12 volt gel cell. He congratulated my on a FB sig with 5 watts. I didn't think the KX1 could put out that kind of power. But I thanked him and closed the contact since Ms. P was standing there tapping her foot. It is best not to put her off too long so I did the right thing ;) I figure my call sign is long enough, why put all that cruft after it? Simply confuses the issue and tests my ability to send long call signs. If they're interested they'll ask. If not I will talk about the weather and how the fir, hemlock, cedar, and alder trees are growing. My personal interest is the alder crop since that is what keeps me warm ;) Kevin. KD5ONS/ no additions here. On Mon, 10 Oct 2005 20:37:01 -0400, Larry Makoski W2LJ [EMAIL PROTECTED] wrote: mc wrote: here is the link I found; http://www.arrl.org/tis/info/qrpwhtwy.html Wow! I gave the ARRL article a quick read through. While there was some valuable information in the article, there sure also was a lot of the old wive's tale in it As far as removing calling CQ from your vocabulary? Ptosh! I call CQ just about every night! And so far this year, I've had at least one QSO a day, since January 1. My feeling is that unless there's a total radio blackout, the band is going to be open to somewhere. And the odds are that your signal will be decent to someone, somewhere. Why not call CQ? Seems stupid not to, to me. And signing /QRP ?? mc, you said it best yourself this morning ... Never tell them up front you are QRP. It's an ancient Black Magic incantation that makes people deaf. I never try to advertise that I'm QRP unless it's a QRP Sprint. Finally, The poorest choice for the QRPer is the vertical antenna. Hmmm . using my Butternut vertical is what got me the QSO I used to join the MPW Club; and it works FB for me in the Foxhunts. Okay, a Yagi and a 100 foot tower would make life easier; but I think the poorest choice of antenna for a QRPer is something more akin to a wet string. 73 de Larry W2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.14/128 - Release Date: 10/10/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Elecraft: Z Match tuner
Don is right, about needing 1/4 wave of feedline (or an odd multiple thereof) so it will act as a transmission line transformer to convert a high impedance at the antenna to a low impedance at the rig. But that also requires a high impedance feed at the antenna. That is, an antenna 1/2 wave length or a multiple of 1/2 wavelength long. The true Zeppp is, in reality, a single-band antenna! His suggestion about just running a single wire is spot on in my book. You'll want to arrange a counterpoise (either tunable for a 1/4 wave long wire for each band). With a good, long wire like you have it won't be hugely important as far as the efficiency of the antenna is concerned, but it will serve to keep the rig at RF ground! Indeed, the nearer your antenna is to a multiple of a 1/2 wave on each band, the more efficient it will be. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE:K2 Bandscope
If you requested the program tonight, 10/10/05 and upon trying the installation got the message insert disk1 or if you have not yet tried the install and your zip file is not 3714KB with a timestamp of 10/10/05 at 9:19PM and you have not received a correcting message and zip file, please contact me immediately. Thank you for your patience and I sincerely apologize for any inconvenience. I apologize for the bandwidth but want to make sure everyone is covered. Jim Rogers W4ATK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
