Re: [Elecraft] K3 - programmable mode and band choices?
In a recent message, Dave G4AON [EMAIL PROTECTED] wrote ... Will it be possible to configure a K3 to give CW/SSB and a choice of bands to avoid needing to step through all the modes and bands? That would be a neat improvement... But surely this is possible with the K2, Dave, by using the ten memory keys. My understanding is that anything the K2 will do, the K3 will do better. -- David G4DMP Leeds, England, UK -- ___ 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] CW speed clabration
Tom Hammond wrote: Fellas: There is NO(!) means of significantly re-calibrating the keyer speed... I did say the adjustment range would be rather limited! and it should not be off by nearly THAT much. Sorry, I couldn't resist giving a literal reply. Yes, the keyer speed is crystal controlled by the 4MHz clock crystal (which cannot be significantly in error without an obvious failure of the VFO calibration). If the speed is wrong, it is one of: - a hardware fault in the microcontroller; - a bug in coding the timer handling; - a difference in the definition of speed between the firmware coder and the user. The Keyer speed control IS a POT... the ONLY encoder is the VFO knob. Physically its a pot, but its function in the K2 is as a shaft encoder. The microcontroller reads the position of the pot as, as a number, and uses that number to decide how fast to send the morse. It is not being used to control the R part of an RC time constant as might be the case in a non-software implementation of a keyer. I'd therefore say it was a poor man's encoder, rather than a pot, in reality. C22 is the master oscillator calibration capacitor which sets the calibration for the entire K2. If you adjust C22, you will HAVE to re-run CAL PLL, and then you will probably want to re-run CAL FIL for each of your XTAL filter settings. If you were to to modify C22 to change the morse speed calibration, which would be pretty pointless, as the adjustment range is probably only about 100 parts per million, you *MUST NOT* re-run CAL PLL or CAL FLTR. Both of these assume that C22 has been set to make the frequency exactly 4MHz. (You also should not re-run these at a different temperature from the one at which C22 was last correctly adjusted, if you want maximum accuracy and you have the thermistor board.) In normal operation, the 4MHz oscillator is not used as a frequency reference, for anything except the morse speed. It is used as the primary frequency reference during CAL PLL and CAL FLTR. As the normal reason for adjusting C22 is to make the 4MHz more accurate, the natural consequence of changing is that one would want to recalibrate the PLL master reference oscillator, which is what sets the frequency reference in normal operation, but is trimmed with an electrically, rather than mechanically, variable capacitor. If one compromises its 4MHz accuracy to achieve some other aim, it is no longer a good primary reference for calibration. PS I think the reply about individual calibration charts was also tongue in cheek. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ 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] ATU in for ANT A, out for ANT B
A few days ago I learned of a feature of the K2 I was unaware of. Perhaps there's another one. Is it possible to configure the KAT2 so that it is operational on ANT A, but switches straight through when you select ANT B? I'm aware that I can tune up ANT B into a 50 ohm load. The problem is that ANT B is a remotely tuned antenna, so it won't always be 50 ohms, but the KAT2 needs to stay at it is while RF is sent and the remote tuner does the tuning. If the K2 can't do this, will the K3 be able to? -- Julian, G4ILO G4ILO's Shack: www.g4ilo.com K2 s/n: 392 K3 s/n: ??? www.Ham-Directory.com: the best ham resources on the net ___ 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] Intermodulation in Crystal Filters
I've re-run the crystal filter intermodulaton tests this morning, with 2 KHz generator spacing. This allows the IMD products to fall within the filter passband, and gives a more useful picture of the total filter performance. Details and plots are at http://www.cliftonlaboratories.com/Updates.htm. Look for the 04 July 2007 entry. The revised data shows IP3 of +23 dBm over an input signal range of +8 dBm to -12 dBm. The manufacturer's recommended maximum input level is -10 dBm. Jack K8ZOA www.cliftonlaboratories.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] CW speed clabration
At 05:08 PM 7/2/2007, Scott McDowell wrote... Does the K2 have an adjustment to correctly set the cw speed? If it does I can't seem to find it. When I set the CW speed on mine on 20 wpm it actually sends about 25 to 27 wpm. I realize that you can slow this down by more spacing between the letters, but it would be nice if it could be calibrated. I really think it is bad cw when you are creating the letters at 25 wpm and slow it down by excessive spacing. How are you measuring the speed? When set to 20 WPM, I used a scope and captured two iambic dot-dash sequences to eliminate errors due to weighting or waveshapes. Those 12 dot times took 697.2 ms. That's a dot time of 58.1 ms, or 1033 dot times per minute. Using the common convention, with PARIS as the standard word (50 dot times), that works out to 20.7 WPM. Close enough for me. I doubt yours is any different, since the timing is ultimately crystal controlled. Here's some info on calculating Morse speed: http://www.kent-engineers.com/codespeed.htm ___ 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] Intermodulation in Crystal Filters
K8ZOA: Monolithic crystal filters are known for IMD, and the test was run with a rather high drive level, around +9 dBm. However, the data is quite instructive and should convince anyone who doubted that crystal filters could themselves be a source of IMD. (These measurements are quick and dirty and I will refine them as I move towards a final filter design. ) Interesting data Jack. For general info of all, ARRL uses -14 dBm signals in their IMD test procedure. -14 dBm corresponds to two S9+59 dB interfering signals using the standard 50 uV = S9 definition (-73 dBm). Bringing the discussion back to the K3, it shows the importance of getting the roofing filter correct, as intermodulation generated in it will come in down the pipe in the DSP stage. Amen! Exactly why I want to see actual IMD results of the various proposed K3 filters before making any decisions as to which I order. I suspect Elecraft may see some surprising differences, even as I type this, while preparing the IMD data we are waiting for. And, it's not just crystals that are non-linear passive devices. Capacitors and inductors also have the same problem. In the case of a capacitor, some dielectrics have a dielectric constant that is a function of applied voltage. Ferrite and powdered iron (but to lesser degree than ferrites) are also non-linear. Hence any component in the RF path must be suspect and carefully evaluated for IMD performance. This concerns me about the proposed variable bandwidth filters. More components in the filter means more possibilities for unwanted IMD product generation within the filter. Happy 4th to all! Bill W4ZV ___ 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] CW speed clabration
On Wednesday 04 July 2007 10:27:58 Mike S wrote: Here's some info on calculating Morse speed: http://www.kent-engineers.com/codespeed.htm That page gives the definition as wpm * (dot length in milliseconds) = 1200 although not explicitly. This is the definition in many RSGB publications. Ian, G4ICV, AB2GR, K2 #4962 -- ___ 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] Ship Dates for K3 Options
Wayne/Eric: (when you get time) I was looking at the shipping status page on the web site and noticed that the KRX3 (second receiver option) will not be shipping until end of September. Since I am in the first batch and ordered this option I guess I'll have to wait and install it later. Is there a problem with the implementation of the second receiver?; or is it just a production issue to meet the demand? No hurry just being greedy. Ciao Hank / KR7X -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.9.14/880 - Release Date: 6/29/2007 2:15 PM ___ 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] Ship Dates for K3 Options
I'm not Wayne/Eric, but the KRX3 shipment schedule is simply a function of parts and production bottleneck. The second RX is identical to the main RX, so the design/implementation is well in hand. Its just that other modules are taking priority and attention in the production pipeline right now, so things are spaced out in a feasible way. You'll have plenty of K3 features to play with long before your KRX3 arrives, hi! 73, Ed - W0YK -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hank Lonberg Sent: Wednesday, 04 July, 2007 09:09 To: elecraft@mailman.qth.net Subject: [Elecraft] Ship Dates for K3 Options Wayne/Eric: (when you get time) I was looking at the shipping status page on the web site and noticed that the KRX3 (second receiver option) will not be shipping until end of September. Since I am in the first batch and ordered this option I guess I'll have to wait and install it later. Is there a problem with the implementation of the second receiver?; or is it just a production issue to meet the demand? No hurry just being greedy. Ciao Hank / KR7X -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.9.14/880 - Release Date: 6/29/2007 2:15 PM ___ 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
Re: [Elecraft] K2 - another contest winner
In a message dated 7/3/07 6:32:16 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: ARRL DX CW 2007 results are out and my 'lil K2 WON the QRP category for USA/VE. After log checking: 696 Qso's 244 DXCC 509,472 points WOO HOO! But with what antennas? Why am I so thrilled? Because according to the CLAIMED scores, I came in 2nd. Yup, gotta love log checking! What a TOTAL surprise! It ain't over till it's over 73 es congrats de Jim, N2EY ** See what's free at http://www.aol.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] 10m is open
Hello and Happy 4th of July!!! Just worked W0EWD in IA on 28.027 MHz. He was a strong 599 into Eastern PA with the beam. I plan on calling CQ for a little while on 28.060 on the beam pointing west. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ 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] K3 - programmable mode and band choices?
David G4DMP wrote: Will it be possible to configure a K3 to give CW/SSB and a choice of bands to avoid needing to step through all the modes and bands? That would be a neat improvement... But surely this is possible with the K2, Dave, by using the ten memory keys. My understanding is that anything the K2 will do, the K3 will do better. Dave What I mean is (for example), suppose you have a dual band antenna for 80 and 40 metres and a single band antenna for 6m. You only operate CW and SSB, therefore it may be useful to disable the other bands and modes via the menu so the band up/down and mode switches didn't take you to bands and modes you didn't use. It's not a big issue, but could be useful. The rigs that suffer the most tend to be FM mobiles for 2m and 70cms where you have to step through aircraft, public service, weather and other non amateur bands to change from one amateur band to another... Thankfully the K3 isn't in that league. 73 Dave ___ 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] 10m is open
So 10M is open. A few years from now, when the Solar Flux is consistently at 125+ (or even higher) and 10M is open all over the world, how will you describe open? Art - N4PJ - Original Message - From: Ron Polityka [EMAIL PROTECTED] To: .Elecraft elecraft@mailman.qth.net Sent: Wednesday, July 04, 2007 12:52 PM Subject: [Elecraft] 10m is open Hello and Happy 4th of July!!! Just worked W0EWD in IA on 28.027 MHz. He was a strong 599 into Eastern PA with the beam. I plan on calling CQ for a little while on 28.060 on the beam pointing west. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.9.14/885 - Release Date: 7/3/2007 10:02 AM ___ 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: Programmable mode/band Fwd: K3 suggestion for future release (read later)
Dave: Glad I'm not the only one who is thinking this way de Doug KR2Q -- Forwarded message -- From: DOUGLAS ZWIEBEL [EMAIL PROTECTED] Date: Jun 17, 2007 7:10 AM Subject: K3 suggestion for future release (read later) To: Eric Swartz WA6HHQ - Elecraft [EMAIL PROTECTED], wayne burdick [EMAIL PROTECTED], lyle johnson [EMAIL PROTECTED] K3FAQ sez: How do you change bands on the K3? Do you have to toggle through all the bands to get to the desired one? You can change bands in several ways: - With the BAND UP and BAND DOWN buttons - Using direct frequency entry; two methods: 1. Enter a frequency in MHz and then a decimal point, e.g. 7. jumps to 7.000 MHz (40 meters) 2. Enter a frequency in kHz and then a decimal point, e.g. 1825. jumps to 1.825 MHz (160 meters) - Using general-purpose memories (100) for your favorite bands/modes, including 5-character names that you assign to each memory) - Using a computer program to control the radio HOW ABOUT ADDING THIS: When using the band up/down button, enable a feature that allows to SKIP certain bands. I am thinking contesting. For example, to get from 10 to 20, using the Band Up/Down would take 4 pushes. If you know that you won't be on 12 and 17 (cuz it's a contest) and you could disable them (or skip them, whatever you want to call it), then it would only take 2 pushes of the Band Up/Down button. Additionally, and even though it might be faster to go from 160 to 10 by pushing the UP button, during a contest, my brain doesn't usually think that way and I go back DOWN through 80, 40, 30, 20, 17, 15, 12, finally to ten. It requires less thinking (believe it or not), even though it clearly would take way more time. While the 160 to 10 example is easy to figure out, but if I'm on 40 and want to get 10, I don't want to think about or remember what is the fastest path. So just thinking higher band vs lower band is simpler (at least for me). As I really don't know how the memory function will work yet, this might be moot. From your description, it sounds like pushing 7 decimal gets you to 7.000 instead of the last QRG you used. I assume that using the Band Up/Down will get you back to your last QRG. Yes? Also, I am pretty sure that you actually would be required to do at least one more keystroke (FREQ ENT) to get into direct freq entry mode, beyond simply tapping 7 then decimal point. I assume that you have to terminate the sequence with another FREQ ENT, otherwise how one enter a discrete frequency (say, 21066)? So if I counted correctly (to just change bands using the keypad), you need at least 4 key strokes. Might as well use the Band Up/Down. As I sed...for a future release, if you think there might be wider appeal than just for me. de Doug KR2Q ___ 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] RE: Programmable mode/band Fwd: K3 suggestion for future release (read later)
I don't think it is too much of a problem in the heat of a contest as you can enter the frequency or mode into the the logging window. I particuarly do this a lot in the FOC Marathon where it is commonplace to move someone through all 6 bands in less than two minutes. He says Try 15m, you respond 21045 on the paddle and immediately type and enter that. You're there. Complete the QSO and do the same for another band. Chris G3SJJ DOUGLAS ZWIEBEL wrote: Dave: Glad I'm not the only one who is thinking this way de Doug KR2Q -- Forwarded message -- From: DOUGLAS ZWIEBEL [EMAIL PROTECTED] Date: Jun 17, 2007 7:10 AM Subject: K3 suggestion for future release (read later) To: Eric Swartz WA6HHQ - Elecraft [EMAIL PROTECTED], wayne burdick [EMAIL PROTECTED], lyle johnson [EMAIL PROTECTED] K3FAQ sez: How do you change bands on the K3? Do you have to toggle through all the bands to get to the desired one? You can change bands in several ways: - With the BAND UP and BAND DOWN buttons - Using direct frequency entry; two methods: 1. Enter a frequency in MHz and then a decimal point, e.g. 7. jumps to 7.000 MHz (40 meters) 2. Enter a frequency in kHz and then a decimal point, e.g. 1825. jumps to 1.825 MHz (160 meters) - Using general-purpose memories (100) for your favorite bands/modes, including 5-character names that you assign to each memory) - Using a computer program to control the radio HOW ABOUT ADDING THIS: When using the band up/down button, enable a feature that allows to SKIP certain bands. I am thinking contesting. For example, to get from 10 to 20, using the Band Up/Down would take 4 pushes. If you know that you won't be on 12 and 17 (cuz it's a contest) and you could disable them (or skip them, whatever you want to call it), then it would only take 2 pushes of the Band Up/Down button. Additionally, and even though it might be faster to go from 160 to 10 by pushing the UP button, during a contest, my brain doesn't usually think that way and I go back DOWN through 80, 40, 30, 20, 17, 15, 12, finally to ten. It requires less thinking (believe it or not), even though it clearly would take way more time. While the 160 to 10 example is easy to figure out, but if I'm on 40 and want to get 10, I don't want to think about or remember what is the fastest path. So just thinking higher band vs lower band is simpler (at least for me). As I really don't know how the memory function will work yet, this might be moot. From your description, it sounds like pushing 7 decimal gets you to 7.000 instead of the last QRG you used. I assume that using the Band Up/Down will get you back to your last QRG. Yes? Also, I am pretty sure that you actually would be required to do at least one more keystroke (FREQ ENT) to get into direct freq entry mode, beyond simply tapping 7 then decimal point. I assume that you have to terminate the sequence with another FREQ ENT, otherwise how one enter a discrete frequency (say, 21066)? So if I counted correctly (to just change bands using the keypad), you need at least 4 key strokes. Might as well use the Band Up/Down. As I sed...for a future release, if you think there might be wider appeal than just for me. de Doug KR2Q ___ 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] K3 Freq hopping
Hmmm. Guess my age is showing. I've never used computer control on my radio(s) during a contest. My K2 has no KIO, so I am stuck thinking like a caveman. You're right. I use a computer to log, so I might as well use it to control the radio as well. DUH! LOL de Doug KR2Q ___ 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] K3 Freq hopping
You don't need a computer. Just hold the Freq button (that's both of the two upper-left buttons held as one) and type the freq using the numbers on the right. Cli-cl-cl-click you're there, and your antenna is tuned. Dan / WG4S / K2 #2456 snip My K2 has no KIO, so I am stuck thinking like a caveman. /snip ___ 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] Polar Bear Summer Gathering
Hello all, Take a look at my WA3WSJ Polar Bear Website as I have updated it with info about the Summer Polar Bear QRP Gathering. http://www.wa3wsj.com/files/PolarBear2007.html 72, Ed,WA3WSJ ___ 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
