Re: [Elecraft] 8 pole vs 5 pole..I knew this would happen
On Thursday 03 May 2007 21:29:00 Lyle Johnson wrote: In the olden days, analog radios would use two IF filters and slide them back and forth against each other to form variable bandwidth filters. Yes indeed. My Eddystone EA12 receiver that I bought from Tom Roberts, G3YTO (SK 1985) is a dual conversion with a tunable first IF from 1.1 Mc/s to 1.7 Mc/s and crystal controlled converters changing the bands to the tunable IF. The second IF is 100 kc/s with a slot filter and continuously variable selectivity: this is accomplished by varying, mechanically the coupling between the coils - it's like flying by the seat .. rather than by wire. At the narrow end of the filter, a 100 kc/s crystal kicks in and I can feel the switch that does it. With up to volts input to the linear ECC189 to the ECH81 first mixer, I think modern radios are building ever more complex sandcastles rather than pyramids. ( Mc/s and kc/s as in the EA12 manual) Ian, G4ICV, PP-ASEL, 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
Re: [Elecraft] K2 Improvement Ideas--Adding on
Bill I'd like to add to your list the ability to have the KAT2 autotuner be active on one antenna port and be bypassed on the other. I have some antennas that require the autotuner for a match, and others that are already a good match as they are. I'd also like to see an improvement in the cw crystal filter to improve the signal suppression outside the filter passband. 73, Bob N6WG - Original Message - From: Bill Coleman [EMAIL PROTECTED] To: wayne burdick [EMAIL PROTECTED] Cc: Elecraft elecraft@mailman.qth.net Sent: Thursday, May 03, 2007 8:32 PM Subject: [Elecraft] K2 Improvement Ideas On Apr 28, 2007, at 12:45 PM, wayne burdick wrote: Please send me directly any suggestions for K2 improvements. I maintain this list, prioritizing task items based on the needs of current and future K2 owners. OK, you asked for it I'm certainly going to buy a K3, when I can afford it, which may be a while. I do have several suggestions for the K2, which is going to remain a very fine and capable radio: Firmware Only Enhancements: 1) RTTY Mark Frequency Display. Like the CW mode displays the frequency of the received CW signal, the RTTY mode ought to display the frequency of the Mark signal. A menu option would be needed to set the frequency of the Mark signal. (This would essentially subtract or add the Mark frequency from the LSB/USB carrier frequency, respectively) 2) Option for VOX to toggle VOX on / off only. Delay is set in a menu option. (Beats having to cycle through all delay times to turn on / off, which I do frequently) 3) Menu settings for default tuning rate for each mode (CW, USB/LSB, RTTY). I currently find myself constantly switching between 10 Hz and 50 Hz whenever I change modes. 4) Unified Filters - Have three or four filter presets for each mode that are combinations of an XFIL and DSP setting values. Allow one button (such as XFIL) to cycle through the presets. This would allow easier manipulation of the two sets of filters, rather than having to tap and hold the same button to get things in sync. (Made even harder because you can't see which filter is currently selected) 5) IF Shift - replace XIT mode with IF Shift. RIT takes priority over the control if on. Either that, or control IF Shift with the Keyer speed control (at least in USB/LSB, RTTY). Or perhaps hold down XIT and rotate tuning dial. 6) Option to flip CW sidebands on 15m and up so tuning direction stays the same. 7) Computer command to set the contents of the CW memories -- so you can program them from a PC program and then run them from the front panel. 8) New INP mode that would allow PTT on the dot line and CW keying on the dash line for contesting work. (No auto-detect of hand keying in this mode) 9) Have a mode for variable rate tuning -- normal tuning is one step at a time, but as you turn the knob faster, the tuning rate increases so long as you tune quickly. (A similar technology is used to accelerate mouse movement and has been on the Mac for over two decades) 10) Option for one-touch selection of Tuner AUTO/CAL (eg out) selection. This would allow one to easily switch the tuner on and off. Hardware Improvements: 1) Improved KSB2 module -- filter with sharper skirts (better than 1.5 shape factor), more (6-10 dB) mic gain available, more positive VOX (using separate VOX amplifier), anti-VOX circuitry. 2) Improved KNB2 -- allow selection of longer blanking times, more thresholds, better blanking action. 3) PFx Module -- teeny little module that has four (or so) buttons. Hooks into AUX line and offers access to eight functions of the K2 (four for tap, four for hold) Obviates the need for FPLY, opens the K2 up for easier access to things like switching filter presets, noise reduction modes, RIT clear. Lots simpler and cheaper than the KRC2 because it is just the buttons. (Might also be useful for the K3) 4) Remote Tuning Knob -- borrow the idea from Ten-Tec. Perhaps part of PFx module. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] 8 pole vs 5 pole..I knew this would happen
With respect Larry I must disagree about the term roofing filter being misleading. I completely agree that a narrow filter at the first IF is desireable if not essential, and it could be identified as a roofing filter in some instances - see below. This approach has been the norm in the design of certain classes of high performance receiver for some time, and obviously this filter's bandwidth must be compatible with the receiver's operating mode. I think that the confusion in understanding the meaning of the term roofing filter started in the amateur community sometime after commercial double conversion receivers began to appear on the amateur market, and appears to be increasing. Because these receivers used very wide roofing filters, and many still do, the myth arose that roofing filters were always wide and were only used in double conversion receivers. In turn this gave birth to other myths about the poor performance of double conversion receivers vs single conversion receivers, which often can be traced back to poor design and poor electro-mechanical construction. The term roofing filter was intended, and has since when correctly used, to identify the first narrow bandwidth IF filter appearing in a receiver's signal path after the first signal mixer, but *only* in those cases where additional IF filtering was introduced further down the IF chain for the purpose of establishing the overall RF / IF selectivity - as found in many amateur double conversion receivers and early single conversion ISB receivers for example. In the ISB receivers with which I was involved in the 1950s, the typical bandwidth of the roofing filter was slightly greater than twice the required traffic bandwidth of each of the following USB and LSB filters i.e.roughly speaking 7 kHz for a basic two channel at baseband receiver, not tens of kHz. In later years a variety of roofing filters, some wide some very narrow have crossed my path. The term does *not* and was *not* intended to imply that that the receiver's architecture is double conversion nor that the bandwidth of the roofing filter is by default wide, and is not used to identify any filter outside of the IF cascade. Although it is tempting to identify the roofing filter as the 1st IF filter, this could imply that there were other IFs used elsewhere in the receiver in question e,g dual conversion or triple conversion, and is usually avoided. In the case of a straightforward single conversion receiver using a single set of filters (or variable bandwidth in the case of the K2) the IF filter should not be identified as a roofing filter.The small filter prior to a product detector to attenuate unwanted sideband IF generated noise does not count as a second filter, because according to the rules the same result can be achieved by using an image reject mixer as a product detector On the other hand if for some strange reason a single conversion comms receiver did employ a widish bandwidth IF filter close after the mixer and narrow bandwidth IF filters further down the IF chain, at the risk of questionable IMD performance if the cascade between the filters is weak, it would be correct to identify the first filter as a roofing filter. In my opinion if a filter is performing the role of a roofing filter its identity should not be changed from roofing filter, which is a well established term both inside and outside of the amateur community. 73, Geoff GM4ESD On Friday, May 04, 2007, at 2:11 AM, Larry Phipps wrote: I think the term roofing filter is misleading. A narrow filter at the first IF protects a receiver even better than a roofing filter, so there is nothing inherently distortion reducing in using a wider filter at the first IF and then a narrower one later. The ideal situation for IMD would be a pair of matched narrow filters at both IFs. The real reason for a roofing filter it seems to me, is to allow passband or slope tuning. This compromises IMD and AGC performance for the sake of a feature... which may or may not be valuable to the user. Therefore, the roofing filter should be termed the passband tuning enabling filter, or PBTE filter ;-) Thankfully, I think Elecraft has done a brilliant job of giving us the options we want without compromises. By tying the DSP bandwidths and PBT functions to the roofing filters, we have the ability to have the combination of 1st and 2nd IF BW we want,,, and with the variable roofing filters, I think we will be able to almost set the relative BWs between the two... allowing a window for PBT or not as we choose. This is an exciting development, and will be copied by many companies over the next year. Kudos to the design team on this. 73, Larry N8LP ___ 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.):
Re: [Elecraft] Alinco DM-330MV...
NZ0R wrote: I'm using an Alinco DM-330MV switching power supply for my K2 with no problems. It has a control that allows me to move the frequency of any RFI I encounter from the supply, but I've never heard any. I have this supply also and use it daily. I can hear some noise in the 160 m band, but the frequency control allows me to move it in frequency, so that it does not bother me. I guess my setup is sensitive to this as I am using ladder line for my antenna, so that the shielding is poorer than if I had used coax. 73 Sverre LA3ZA Unofficial Guide to K2 Modifications http://www.qslnet.de/member/la3za/K2/mod.html -- I am using the free version of SPAMfighter for private users. It has removed 14373 spam emails to date. Paying users do not have this message in their emails. Get the free SPAMfighter here: http://www.spamfighter.com/len ___ 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] So, How Many K3 Orders?
Hi Paul, Absolutely! Much earlier than that. We have increased our first runs to accommodate the order rate. 73, Eric --- Paul Clay wrote: Hi! I'm wondering; if order my K3 today (paying half down) will I receive it by Christmas '07? ;=) I seem to recall seeing the question posed, but missed seeing the answer; how many K3s does Elecraft expect to be producing/delivering each month? - Paul ___ 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] MD2 and K3 MH2 and K3
Absolutely! 73, Eric WA6HHQ [EMAIL PROTECTED] wrote: Will the Elecraft/Heil MD2 work with the K3? ___ 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: Elecraft Digest, Vol 37, Issue 8
Please consider a USB interface for it, PFU systems make really nice, small KBs with either PS/2 and USB interfaces http://pfuca-store.stores.yahoo.net/ (I have a HHKB Lite 2 - USB one) -- M0XDF On 4/5/07 07:41, [EMAIL PROTECTED] [EMAIL PROTECTED] sent: If you wanted the full character set, you could always connect a small keyboard. We're working on that 73, Wayne N6KR -- Too many parents make life hard for their children by trying, too zealously, to make it easy for them. -Johann Wolfgang von Goethe, poet, dramatist, novelist, and philosopher (1749-1832) ___ 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: Elecraft Digest, Vol 37, Issue 8 - LED
Assuming that was to me, I meant on the K3 and got the answer - its Delta freq - RIT/XIT/Split indicator. Would you mind explaining the term 'Aristotle' I guess its used when someone doesn't see the callsign? Mine's in my email address, but could be easy to miss. -- M0XDF On 4/5/07 07:41, [EMAIL PROTECTED] [EMAIL PROTECTED] sent: Message: 5 Date: Thu, 03 May 2007 21:59:46 +0100 From: G3SJJ [EMAIL PROTECTED] Subject: Re: [Elecraft] What is LED To: elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1; format=flowed Aristotle, no callsign. Do you man on the K2 or the K3? C h r i sG 3 S J J -- Facts do not cease to exist because they are ignored. -Aldous Huxley, novelist (1894-1963) ___ 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 - Roger beep
What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF -- In theory, there is no difference between theory and practice, but in practice there is. ___ 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 - Roger beep
You have got to be kidding! john-n4dsp What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF -- In theory, there is no difference between theory and practice, but in practice there is. ___ 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: 7.5.467 / Virus Database: 269.6.2/787 - Release Date: 5/3/2007 2:11 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] K3 - Roger beep
- Original Message - From: David Ferrington [EMAIL PROTECTED] What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? David, let's go one step further - a free Space Cadet uniform with each K3? Simon K3 - I screwed it up myself HB9DRV ___ 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 - Roger beep
David Ferrington wrote: What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? It's a troll right? Ian -- Ian J Maude G0VGS SysOp GB7MBC DX Cluster Member of RSGB, ARRL, GQRP K2 #4044 ___ 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 - Roger beep
Let's leave that until Elecraft bring out a 27MHz option for the K3! I take it you have come to amateur radio from CB? 73 In a recent message, David Ferrington [EMAIL PROTECTED] wrote ... What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF -- 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] K3 - Roger beep
A truly excellent idea but you should have asked more. Since the audio is being processed by dsp it should be a no brainer to add echo !!! ...and maybe a pull out drawer underneath for a ten code lookup sheet !!! Martin David Ferrington wrote: What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF ___ 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 - Roger beep
Sorry, I'm relatively new ham, so if that's frowned upon, forgive me. Only a lot of people in my club work VHF contests (I've ordered an XV144) and use a beep a lot. On 4/5/07 09:06, n4dsp [EMAIL PROTECTED] sent: You have got to be kidding! john-n4dsp What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF -- The nice thing about standards is that there are so many of them to choose from. -Andrew Tannenbaum, computer science professor (1944- ) ___ 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 - Roger beep
Ah, perhaps we were being a tad cruel, but it's a history thing I think, oh and a bit of a long standing joke with some as well. 73 Martin David Ferrington wrote: Sorry, I'm relatively new ham, so if that's frowned upon, forgive me. Only a lot of people in my club work VHF contests (I've ordered an XV144) and use a beep a lot. On 4/5/07 09:06, n4dsp [EMAIL PROTECTED] sent: You have got to be kidding! john-n4dsp What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF ___ 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] I'm solidly in the queue ....
Well, thats what Lisa told me. No formal acknowledgement yet, but I'm in the K3 queue and I still have to get past the big one - telling my xyl. But as she is coming to Dayton with me I guess there is more than a chance she will find out, especially when I tell her we have stand by the Elecraft booth and hand out flyers ... It says a lot for Elecraft that so may are willing to pay up front for a rig that few have seen, let alone tested on air. My first K2 was #609; will I now get K3 #609 ? Sounds as if its heading that way. But #161 would be nice ! John G3JAG ___ 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] KPA100 - Fitting PC to Heat sink
I am trying to fit the PC to the heat sink but there is not a neat match of set screws to holes in the PC. No problems in screwing the set screws into the heat sinks (i.e. certainly not cross-threaded) but there is a tiny mismatch. I am very very reluctant to use any force (and I have to get it back off anyway). Anyone else have this problem and any suggestions? Maybe a comment will make a change from K3 frenzy (and yes it does look great!) 73 Nick G3RWF ___ 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 - Roger beep
On Fri, 4 May 2007, David Ferrington wrote: What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? Good Buddy, ya gotta keep the pedal to the metal for that. Thom www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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] KPA100 - Fitting PC to Heat sink
Nick, The KPA100 board is a bit tight on the screws, but will fit (albeit just barely) if it is held always parallel with the heat sink - but it usually is not - there may also be a tiny bit of a curve to the board which makes it more difficult. Just push it on, pushing at each screw location a bit at a time and when it is time to remove it, pry it up with a wide flat blade screwdriver or similar tool (look under the board to be certain the blade does not contact any of the capacitors mounted on the bottom). It gets easier every time it goes on and off, but I have never found one that slips off easily. 73, Don W3FPR Nick Henwood wrote: I am trying to fit the PC to the heat sink but there is not a neat match of set screws to holes in the PC. No problems in screwing the set screws into the heat sinks (i.e. certainly not cross-threaded) but there is a tiny mismatch. I am very very reluctant to use any force (and I have to get it back off anyway). Anyone else have this problem and any suggestions? Maybe a comment will make a change from K3 frenzy (and yes it does look great!) 73 Nick G3RWF ___ 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 - Roger beep
In a message dated 5/4/07 4:01:20 AM Eastern Daylight Time, [EMAIL PROTECTED] writes: What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? I think it's one feature I so not want. http://theducks.org/pictures/do-not-want-dog.jpg In theory, there is no difference between theory and practice, but in practice there is. If it were easy, everybody would be doing it. If it happens, it must be possible. If you push something hard enough, it will fall over. 73 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
Re: [Elecraft] KPA100 - Fitting PC to Heat sink
As usual, Don's comments are right on. Mine was also very tight. Just check to make sure you can see the top of the screw at each hole. You might try using a nut driver and going to each hole and pressing right on the pad. That puts all the pressure where the fastener is, and reduces chance of damage on the PC board. 73, Tom KG3V Quoting Don Wilhelm [EMAIL PROTECTED]: Nick, The KPA100 board is a bit tight on the screws, but will fit (albeit just barely) if it is held always parallel with the heat sink - but it usually is not - there may also be a tiny bit of a curve to the board which makes it more difficult. Just push it on, pushing at each screw location a bit at a time and when it is time to remove it, pry it up with a wide flat blade screwdriver or similar tool (look under the board to be certain the blade does not contact any of the capacitors mounted on the bottom). It gets easier every time it goes on and off, but I have never found one that slips off easily. 73, Don W3FPR Nick Henwood wrote: I am trying to fit the PC to the heat sink but there is not a neat match of set screws to holes in the PC. No problems in screwing the set screws into the heat sinks (i.e. certainly not cross-threaded) but there is a tiny mismatch. I am very very reluctant to use any force (and I have to get it back off anyway). Anyone else have this problem and any suggestions? Maybe a comment will make a change from K3 frenzy (and yes it does look great!) 73 Nick G3RWF ___ 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 Improvement Ideas
Bill, That was an outstanding post. I have only been using the K2 for a few months, and the KAT100 for a couple weeks, and I already want many of the things on your list. I especially agree that some enhancements to the tuning raes would be nice. I am constantly switching between rates, and wishing for variable speed tuning, or some additional rates in between the existing ones. I would also like a CW contester's keypad. Something I could sit next to my key, and get access to all the CW memories, filter selection, RIT, tuning, and a few other functions. In fact, I may build one, but I'm sure something from the factory would be better matched to the rig. If others are interested in something like this, please let me know. 73, Tom KG3V Quoting Bill Coleman [EMAIL PROTECTED]: On Apr 28, 2007, at 12:45 PM, wayne burdick wrote: Please send me directly any suggestions for K2 improvements. I maintain this list, prioritizing task items based on the needs of current and future K2 owners. OK, you asked for it I'm certainly going to buy a K3, when I can afford it, which may be a while. I do have several suggestions for the K2, which is going to remain a very fine and capable radio: Firmware Only Enhancements: 1) RTTY Mark Frequency Display. Like the CW mode displays the frequency of the received CW signal, the RTTY mode ought to display the frequency of the Mark signal. A menu option would be needed to set the frequency of the Mark signal. (This would essentially subtract or add the Mark frequency from the LSB/USB carrier frequency, respectively) 2) Option for VOX to toggle VOX on / off only. Delay is set in a menu option. (Beats having to cycle through all delay times to turn on / off, which I do frequently) 3) Menu settings for default tuning rate for each mode (CW, USB/LSB, RTTY). I currently find myself constantly switching between 10 Hz and 50 Hz whenever I change modes. 4) Unified Filters - Have three or four filter presets for each mode that are combinations of an XFIL and DSP setting values. Allow one button (such as XFIL) to cycle through the presets. This would allow easier manipulation of the two sets of filters, rather than having to tap and hold the same button to get things in sync. (Made even harder because you can't see which filter is currently selected) 5) IF Shift - replace XIT mode with IF Shift. RIT takes priority over the control if on. Either that, or control IF Shift with the Keyer speed control (at least in USB/LSB, RTTY). Or perhaps hold down XIT and rotate tuning dial. 6) Option to flip CW sidebands on 15m and up so tuning direction stays the same. 7) Computer command to set the contents of the CW memories -- so you can program them from a PC program and then run them from the front panel. 8) New INP mode that would allow PTT on the dot line and CW keying on the dash line for contesting work. (No auto-detect of hand keying in this mode) 9) Have a mode for variable rate tuning -- normal tuning is one step at a time, but as you turn the knob faster, the tuning rate increases so long as you tune quickly. (A similar technology is used to accelerate mouse movement and has been on the Mac for over two decades) 10) Option for one-touch selection of Tuner AUTO/CAL (eg out) selection. This would allow one to easily switch the tuner on and off. Hardware Improvements: 1) Improved KSB2 module -- filter with sharper skirts (better than 1.5 shape factor), more (6-10 dB) mic gain available, more positive VOX (using separate VOX amplifier), anti-VOX circuitry. 2) Improved KNB2 -- allow selection of longer blanking times, more thresholds, better blanking action. 3) PFx Module -- teeny little module that has four (or so) buttons. Hooks into AUX line and offers access to eight functions of the K2 (four for tap, four for hold) Obviates the need for FPLY, opens the K2 up for easier access to things like switching filter presets, noise reduction modes, RIT clear. Lots simpler and cheaper than the KRC2 because it is just the buttons. (Might also be useful for the K3) 4) Remote Tuning Knob -- borrow the idea from Ten-Tec. Perhaps part of PFx module. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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
Re: [Elecraft] K2 Improvement Ideas--Adding on
Bob, I see no real need for a bypass on just one of the tuner antenna jacks. In my mind it is already there, but better - just do a TUNE once on each band where your antenna is resonant and the K2 will remember - I regard that as better than a bypass function. 73, Don W3FPR Robert Tellefsen wrote: Bill I'd like to add to your list the ability to have the KAT2 autotuner be active on one antenna port and be bypassed on the other. I have some antennas that require the autotuner for a match, and others that are already a good match as they are. I'd also like to see an improvement in the cw crystal filter to improve the signal suppression outside the filter passband. 73, Bob N6WG ___ 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] I'm solidly in the queue ....
I went home day before yesterday and told the wife I bought a new radio. 'yea, how much?' $1400.00 (I always leave some off). [EMAIL PROTECTED]@##!!!@@ That went on for 10 minutes Then I tell her I am selling he icom, and the new radio wont ship till July. Then she says it wont sell, etc. Yesterday I went home and told her its sold Brett N2DTS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of JACrux Sent: Friday, May 04, 2007 6:02 AM To: elecraft@mailman.qth.net Subject: [Elecraft] I'm solidly in the queue Well, thats what Lisa told me. No formal acknowledgement yet, but I'm in the K3 queue and I still have to get past the big one - telling my xyl. But as she is coming to Dayton with me I guess there is more than a chance she will find out, especially when I tell her we have stand by the Elecraft booth and hand out flyers ... It says a lot for Elecraft that so may are willing to pay up front for a rig that few have seen, let alone tested on air. My first K2 was #609; will I now get K3 #609 ? Sounds as if its heading that way. But #161 would be nice ! John G3JAG ___ 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 Audio Output
Wondering if the new K3 will have more AF audio output than the K2? Regards, Don / WA9TGT ___ 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 improvements
In no particular order (all are needed). 1. MUCH BETTER QSK 2. Stable output power 3. Opto-coupler for RIT/XIT (don't take away XIT and substitute IF shift) with CLEAR function 4. As turn RIT/XIT, have offset (in KHz) momentarily replace freq display so we can see the amount of offset (essential for XIT). Ala K3. 5. MUCH BETTER QSK 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] K2 improvements
I've loved the QSK performance of my K2 and feel it is superior to the several TenTec rigs I've owned. Could you be more specific as to what needs to be improved? Thanks! - Keith N1AS - - K2 5411.ssb.100 - -Original Message- From: DOUGLAS ZWIEBEL 1. MUCH BETTER QSK 5. MUCH BETTER QSK ___ 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] 8 pole vs 5 pole..I knew this would happen
Hi Geoff. My post was somewhat tongue-in-cheek, and it's mostly semantics, but I would say that the K3 filter would be a roofing filter or not depending on your settings. I guess my opinion is that if it's set for the same BW as the 2nd IF, then its not a roofing filter, and if it's set wider then it is. At any rate, it's a roofing filter since that what they decided to call it, and would usually be used that way. The beauty of the design is that it doesn't have to be. One other bit of semantics... if the DSP filter is set wider than the roofing filter (if the firmware even allows this), then the term roofing filter would definitely not be correct, and the DSP filter would then be an image reject filter or something similar ;-) I think I will coin another term for Elecraft... FDR, for Firmware Defined Radio ;-) 73, Larry N8LP Geoffrey Mackenzie-Kennedy wrote: With respect Larry I must disagree about the term roofing filter being misleading. I completely agree that a narrow filter at the first IF is desireable if not essential, and it could be identified as a roofing filter in some instances - see below. This approach has been the norm in the design of certain classes of high performance receiver for some time, and obviously this filter's bandwidth must be compatible with the receiver's operating mode. I think that the confusion in understanding the meaning of the term roofing filter started in the amateur community sometime after commercial double conversion receivers began to appear on the amateur market, and appears to be increasing. Because these receivers used very wide roofing filters, and many still do, the myth arose that roofing filters were always wide and were only used in double conversion receivers. In turn this gave birth to other myths about the poor performance of double conversion receivers vs single conversion receivers, which often can be traced back to poor design and poor electro-mechanical construction. The term roofing filter was intended, and has since when correctly used, to identify the first narrow bandwidth IF filter appearing in a receiver's signal path after the first signal mixer, but *only* in those cases where additional IF filtering was introduced further down the IF chain for the purpose of establishing the overall RF / IF selectivity - as found in many amateur double conversion receivers and early single conversion ISB receivers for example. In the ISB receivers with which I was involved in the 1950s, the typical bandwidth of the roofing filter was slightly greater than twice the required traffic bandwidth of each of the following USB and LSB filters i.e.roughly speaking 7 kHz for a basic two channel at baseband receiver, not tens of kHz. In later years a variety of roofing filters, some wide some very narrow have crossed my path. The term does *not* and was *not* intended to imply that that the receiver's architecture is double conversion nor that the bandwidth of the roofing filter is by default wide, and is not used to identify any filter outside of the IF cascade. Although it is tempting to identify the roofing filter as the 1st IF filter, this could imply that there were other IFs used elsewhere in the receiver in question e,g dual conversion or triple conversion, and is usually avoided. In the case of a straightforward single conversion receiver using a single set of filters (or variable bandwidth in the case of the K2) the IF filter should not be identified as a roofing filter.The small filter prior to a product detector to attenuate unwanted sideband IF generated noise does not count as a second filter, because according to the rules the same result can be achieved by using an image reject mixer as a product detector On the other hand if for some strange reason a single conversion comms receiver did employ a widish bandwidth IF filter close after the mixer and narrow bandwidth IF filters further down the IF chain, at the risk of questionable IMD performance if the cascade between the filters is weak, it would be correct to identify the first filter as a roofing filter. In my opinion if a filter is performing the role of a roofing filter its identity should not be changed from roofing filter, which is a well established term both inside and outside of the amateur community. 73, Geoff GM4ESD On Friday, May 04, 2007, at 2:11 AM, Larry Phipps wrote: I think the term roofing filter is misleading. A narrow filter at the first IF protects a receiver even better than a roofing filter, so there is nothing inherently distortion reducing in using a wider filter at the first IF and then a narrower one later. The ideal situation for IMD would be a pair of matched narrow filters at both IFs. The real reason for a roofing filter it seems to me, is to allow passband or slope tuning. This compromises IMD and AGC performance for the sake of a feature... which may or may not be valuable to the
Re: [Elecraft] So, How Many K3 Orders?
I hope you guys aren't planning any time off this year! (Actually I hope you are or you will lose your sanity). After Dayton and an ARRL product review, you will probably have a 12 month backlog ;-) 73, Larry N8LP Eric Swartz - WA6HHQ, Elecraft wrote: Hi Paul, Absolutely! Much earlier than that. We have increased our first runs to accommodate the order rate. 73, Eric --- Paul Clay wrote: Hi! I'm wondering; if order my K3 today (paying half down) will I receive it by Christmas '07? ;=) I seem to recall seeing the question posed, but missed seeing the answer; how many K3s does Elecraft expect to be producing/delivering each month? - Paul ___ 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] Re: Brain vs Hardware filters
Gd pt. Mch lk curnt crp of txt msgrs tnk th is std Eglsh. (Good point! Much like the current crop of cell phone text messagers think this is standard English.) Ron AC7AC -Original Message- Mike Markowski wrote: I was thinking what it would be like to use the psk-cw decoder that Wayne has added to the k3 to do list. Imagine trying to copy this cut pasted snippet of a psk qso just now: Funny Al! :-) Well, I use a store bought dipole. It cost me about $40 on sale and seems to work well - I have it about 25' or 30' up. All those non alphanumerics... Maybe k3 operators will be spotted on psk by their use of mostly alphanumerics and small, cw friendly words! ___ 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 Improvement Ideas--Adding on
Hi Don Yes, if there were only two antennas, that would work., and I've done that. However, I have more than that, some connected to a rotary switch outboard to the K2. When I switch them, I don't want to retune the ATU with each new antenna I connect, as I'm often switching to find the best signal for a station I'm trying to work. Some antennas present a nice 50 ohm match as they are, and some don't. I'd like to put the 50 ohm matches all together on one port and those that need matching on the other port. I'm still trying to get to the point where all the antennas are 50 ohms at the switch, and then it wouldn't matter. But it ain't easy :-) 73, Bob N6WG - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Robert Tellefsen [EMAIL PROTECTED] Cc: Bill Coleman [EMAIL PROTECTED]; wayne burdick [EMAIL PROTECTED]; Elecraft elecraft@mailman.qth.net Sent: Friday, May 04, 2007 5:14 AM Subject: Re: [Elecraft] K2 Improvement Ideas--Adding on Bob, I see no real need for a bypass on just one of the tuner antenna jacks. In my mind it is already there, but better - just do a TUNE once on each band where your antenna is resonant and the K2 will remember - I regard that as better than a bypass function. 73, Don W3FPR Robert Tellefsen wrote: Bill I'd like to add to your list the ability to have the KAT2 autotuner be active on one antenna port and be bypassed on the other. I have some antennas that require the autotuner for a match, and others that are already a good match as they are. I'd also like to see an improvement in the cw crystal filter to improve the signal suppression outside the filter passband. 73, Bob N6WG ___ 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] Price Comparison and Comment
Bill, You are right. After thinking on this for more than 10 minutesI came to the same conclusion. A K3 can be had for 1800 dollars in modular kit form...with just 100 watts and no bells and whistles. The 2.7 roofing filter comes with the unit, so you would have a workable unit after building it. So, the price comparison I put out last weekend was...well...wrong! Wrong on so many levels. I did not understand roofing filters at time and considered them IF Filters. I was informed by very nice people that not all five filters would be needed. So, that was a bogus assumption on my part. Also, I looked at the price from a full blown perspective. What I like about Elecraft is that you can put in the pieces when you can afford them. Not like other companies who do not offer that kind of flexibility. So...sorry about the poor email Lee Buller Making a mistake is not a problem...not learning from mistakes is a big problem. This is assuming the problem is not life or death In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense devine? ___ 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] Price Comparison and Comment
Good chart, Bill. I especially agree with some of your footnote statements. Being a casual DXer and contest dabbler, I ordered a K3/100 with just the KXV3. I ordered the modular kit because I wanted to experience the new kit methodology, and become familiar with the boards and architecture in case I need to do future maintenance. I think a couple evenings of time spent with the manual will be well worth it. I purposely did not make a deposit, so that my unit would fall in the second run. I did this in case there are any hardware revisions after the first run. I should be early in run 2, and I thought that if I waited for feedback from the 1st run guys before ordering, I wouldn't get it until 2008 ;-) I also purposely didn't order any extra filters, as I suspect that the variable roofing filters will be out before my order is ready, and I may want to consider them for added flexibility (at least for CW). I totally agree about internal ATUs... don't like them for a number of reasons. I have one I home-brewed that I like anyway. I also don't need a second receiver at the moment. K3 allows me to have world class performance at a bargain basement price (relatively speaking), with only the features I need, but gives me expandability in case I need more options down the road. Oh, and since I already own a Z90 panadapter, I'm covered on that front. 73, Larry N8LP Bill Tippett wrote: K0WA wrote: I am sure many of you have done this alreadybut it is interesting to meand I thought I would share 1. FTDX9000 Contest $5699 (no extras) 2. Orion II $4395 3. K3 $3436 (Includes 5 filters) 4. FT2000D$3399 5 Omni VII $3050 (with two filters) 6 IC756PROIII$2999 No coupons were added or any reduction of price for this small study of price. As I see if, you just save $330 from putting it together. HM. That kind of makes he happy and sad. I had the fun of building the K2...but that doesn't seem worth it to build a K3. Of course, I could be (and usually am) wrong in my thinking here. Be careful with comparisons like this! It depends very much on your K3 configuration, and it also depends on how you value issues like the quality of the Sub Receiver, etc. The beauty of the K3 is that it can be configured very economically depending on what your needs are. Elecraft has cleverly configured the K3 to allow it to appeal to many different users: 1. Budget minded DXers who need an exceptional RX. Include the basic K3, no ATU, KXV3 (for RX antenna input) plus 500 Hz filter equals $2149. CW filter depends on IMD/BDR measurements but most likely the 500 Hz 5-pole will be entirely sufficient based on my experience with Orion. Build one yourself for $1907. 2. Budget minded contesters who need 2 for SO2R. Twice the above for $4298 assembled or $3814 kitted. 3. Those who need truly high performance Sub RX for diversity or for use in very crowded conditions. K3 + Sub RX + KXV3 + two 500 Hz filters for $2825 assembled or $2525 kitted. IMHO this combination cannot be duplicated by any of the above rigs due to the quality of both K3 receivers (pending actual IMD/BDR measurements of course). 4. Those who want a truly high performance panadapter/bandscope using the K3's IF output to an outboard SDR (e.g. Softrock 40, Clifton Laboratories Z90/91 Panadapter, etc.) This gets tricky to price but it's nowhere near the $10k range of a full blown IC-7800 or FTDX9000. I'm not a fan of ATUs but you can add it to the above if necessary. Thank you Elecraft and Ten-Tec for not forcing me to pay for an ATU if I don't feel I need it (ditto for the 20 and 6 kHz filters I never use in my Orion). I simply wanted to offer a counterpoint view to the pricing listed above. I'm sure many others would do things differently but I believe Elecraft has been very clever in allowing us to configure exactly what we need...and nothing more. 73, 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 ___ 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] Lets Hear from a K3 User
As I understand it...there are about 15 K3's out there in use? What about hearing from those folks as to what their experience is with the unit? Would that be possible? Testimonials? Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense devine? ___ 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 Improvement Ideas--Adding on
Bob, I think you may be a candidate for the KRC2 and an array of relays for your antenna switching tasks. It can work great. When I have all the work on my system completed I will switching a total of 13 antennas with mine - the tuner just trims up the match a bit when needed. If you have 2 banks of antennas (1 bank tuned and the other presenting 50 ohms), the KRC2 can select the proper antennas for each band and the ANT1/2 button selects between the 2 antennas for each band - If you have more than 2 antennas on any band the KRC2 F4 button can be used to turn on the AC1 thru AC3 lines which can be used in conjuction with the normal band select outputs to select additional antennas - I find it much more sensible and automatic than antenna switches. 73, Don W3FPR Robert Tellefsen wrote: Hi Don Yes, if there were only two antennas, that would work., and I've done that. However, I have more than that, some connected to a rotary switch outboard to the K2. When I switch them, I don't want to retune the ATU with each new antenna I connect, as I'm often switching to find the best signal for a station I'm trying to work. Some antennas present a nice 50 ohm match as they are, and some don't. I'd like to put the 50 ohm matches all together on one port and those that need matching on the other port. I'm still trying to get to the point where all the antennas are 50 ohms at the switch, and then it wouldn't matter. But it ain't easy :-) 73, Bob N6WG - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Robert Tellefsen [EMAIL PROTECTED] Cc: Bill Coleman [EMAIL PROTECTED]; wayne burdick [EMAIL PROTECTED]; Elecraft elecraft@mailman.qth.net Sent: Friday, May 04, 2007 5:14 AM Subject: Re: [Elecraft] K2 Improvement Ideas--Adding on Bob, I see no real need for a bypass on just one of the tuner antenna jacks. In my mind it is already there, but better - just do a TUNE once on each band where your antenna is resonant and the K2 will remember - I regard that as better than a bypass function. 73, Don W3FPR Robert Tellefsen wrote: Bill I'd like to add to your list the ability to have the KAT2 autotuner be active on one antenna port and be bypassed on the other. I have some antennas that require the autotuner for a match, and others that are already a good match as they are. I'd also like to see an improvement in the cw crystal filter to improve the signal suppression outside the filter passband. 73, Bob N6WG ___ 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] Price Comparison and Comment
I ordered just the 10 watt kit and a 6Khz filter, which will allow me to play a lot before I get the 100 watt amp and the atu. I don't contest or DX, so its nice to not have to get a lot of filters, and a 2nd receiver. I do want the band scope though! The soft entry makes it a bit better than having to plunk down a truck load of cash Brett N2DTS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lee Buller Sent: Friday, May 04, 2007 11:07 AM To: Bill Tippett; Elecraft Reflector Subject: Re: [Elecraft] Price Comparison and Comment Bill, You are right. After thinking on this for more than 10 minutesI came to the same conclusion. A K3 can be had for 1800 dollars in modular kit form...with just 100 watts and no bells and whistles. The 2.7 roofing filter comes with the unit, so you would have a workable unit after building it. So, the price comparison I put out last weekend was...well...wrong! Wrong on so many levels. I did not understand roofing filters at time and considered them IF Filters. I was informed by very nice people that not all five filters would be needed. So, that was a bogus assumption on my part. Also, I looked at the price from a full blown perspective. What I like about Elecraft is that you can put in the pieces when you can afford them. Not like other companies who do not offer that kind of flexibility. So...sorry about the poor email Lee Buller Making a mistake is not a problem...not learning from mistakes is a big problem. This is assuming the problem is not life or death ___ 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 - Roger beep
David, please understand the reaction from some over here on this side of the pond. Roger beeps, along with echo boxes are standard fare for the wanna-be hams on our CB channels. Actually, perhaps a roger beep makes a bit of sense in the marginal, sometimes imaginary world of VHF/UHF contesting QSO's ... 73! Ken Kopp - K0PP [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
Re: [Elecraft] K3 - Roger beep
Yes, understood - no offence taken and I hope none given. I understand from some of the serious VHF contesters over here that it is very helpful. I know there are various units available and I'm sure it would be possible to construct something simply, but thought I see if it is something that could be simply incorporated into the firmware. On 4/5/07 16:34, Ken Kopp [EMAIL PROTECTED] sent: David, please understand the reaction from some over here on this side of the pond. Roger beeps, along with echo boxes are standard fare for the wanna-be hams on our CB channels. Actually, perhaps a roger beep makes a bit of sense in the marginal, sometimes imaginary world of VHF/UHF contesting QSO's ... 73! Ken Kopp - K0PP [EMAIL PROTECTED] -- Black holes are where God divided by zero. -Steven Wright, comedian (1955-) ___ 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 Improvement Ideas--Adding on
Don Wilhelm wrote: If you have 2 banks of antennas (1 bank tuned and the other presenting 50 ohms), the KRC2 can select the proper antennas for each band and the ANT1/2 button selects between the 2 antennas for each band - If you have more than 2 antennas on any band the KRC2 F4 button can be used to turn on the AC1 thru AC3 lines which can be used in conjuction with the normal band select outputs to select additional antennas - I find it much more sensible and automatic than antenna switches. I must be missing something. Let's say the KRC2 is operating a relay box connected to port 1. Then it will select an antenna for each band (we'll assume that these are the tuned antennas). You can connect ONE other antenna to port 2. Unless you have two relay boxes, which I guess is possible. Were you thinking of something else? I have a KRC2 and a KAT100 and have been thinking about the most effective way to use them. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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 - Roger beep
Nasa uses it, so it must have some purpose... I have a 10 meter rig that has it built in, along with echo and robot voice! The beep is ok but to loud, with no way to adjust it. Brett N2DTS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Ferrington Sent: Friday, May 04, 2007 11:43 AM To: Ken Kopp Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - Roger beep Yes, understood - no offence taken and I hope none given. I understand from some of the serious VHF contesters over here that it is very helpful. I know there are various units available and I'm sure it would be possible to construct something simply, but thought I see if it is something that could be simply incorporated into the firmware. ___ 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 Improvement Ideas--Adding on
You can tune the AT into a dummy load (on ANT2, let's say), and then not tune it to the antenna ever. Then, if you are on ANT1, the tuner will use it's remembered settings for that band and antenna. If you switch to ANT2, the tuner will use it's remembered settings for the band and dummy load (which is the same as bypass for all intents and purposes). Actually, it may BE the same. I'd have to check the relay settings for POUT vs tuned to a 50 ohm load, but they might be the same. Anyone know? Dan / WG4S / K2 #2456 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Vic K2VCO Sent: Friday, May 04, 2007 11:45 AM To: [EMAIL PROTECTED] Cc: Elecraft Subject: Re: [Elecraft] K2 Improvement Ideas--Adding on Don Wilhelm wrote: If you have 2 banks of antennas (1 bank tuned and the other presenting 50 ohms), the KRC2 can select the proper antennas for each band and the ANT1/2 button selects between the 2 antennas for each band - If you have more than 2 antennas on any band the KRC2 F4 button can be used to turn on the AC1 thru AC3 lines which can be used in conjuction with the normal band select outputs to select additional antennas - I find it much more sensible and automatic than antenna switches. I must be missing something. Let's say the KRC2 is operating a relay box connected to port 1. Then it will select an antenna for each band (we'll assume that these are the tuned antennas). You can connect ONE other antenna to port 2. Unless you have two relay boxes, which I guess is possible. Were you thinking of something else? I have a KRC2 and a KAT100 and have been thinking about the most effective way to use them. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] Now that we've covered roofing filters, a Q on sub-receivers
Imagine my dismay as a submarine veteran at learning that the K3's sub-receiver has nothing to do with an AN/WSC-5 ;-) As I understand it, the main purpose of a sub-rx is to allow diversity reception based on the fact that this 2nd receiver would be using a different antenna than the main rx, correct? I'm not sure if there are other advantages and am curious if that is the case as I ponder which config of a K3 to eventually order. If that is the only advantage, I doubt it would be necessary or useful for me...if I need that much finessing to copy a station, I'll never work him with 100 watts and any antenna I can put up. I'll probably get a 2nd round of whatever version of K3 I decide on as I am (finally! after 23 years) getting transferred back to 5-Land soon. In the meantime, it sure is educational reading the posts of some of you who can translate and analogize some of the options I've never had reason to consider before. Thanks and 73, John Harper AE5X http://www.ae5x.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] K3 Audio Output
Yes. :-) 73, Eric WA6HHQ --- Donnie Garrett wrote: Wondering if the new K3 will have more AF audio output than the K2? Regards, Don / WA9TGT ___ 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] Now that we've covered roofing filters, a Q on sub-receivers
AE5X: As I understand it, the main purpose of a sub-rx is to allow diversity reception based on the fact that this 2nd receiver would be using a different antenna than the main rx, correct? Diversity is probably not what most people use the Sub-RX for. The main use is more likely to be listening on two different frequencies simultaneously. For example listening for DX while also participating in a net. Or in a widely split DX pileup like BS7H, finding the station he's working while also listening on his TX frequency. It's very easy to find where DX is listening using this technique. Diversity is probably 1% of what most people use a Sub-RX for, but is very important to some like myself who have multiple RX antennas on the low bands. DX station fading is often minimized by listening both on my directional vertical TX array as well as a Beverage. Or in a contest I might want to listen on two different Beverages (different directions) simultaneously. 73, 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] Lets Hear from a K3 User
While we're in Field Test we've asked the FT's to keep correspondence private so we can focus on making sure that we address everything they find or ask for as an enhancement. They will be un-muted after that :-) . Probably sometime after Dayton. 73, Eric WA6HHQ Lee Buller wrote: As I understand it...there are about 15 K3's out there in use? What about hearing from those folks as to what their experience is with the unit? Would that be possible? Testimonials? Lee - K0WA ___ 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] Now that we've covered roofing filters, a Q on sub-receivers
Or in a widely split DX pileup like BS7H, finding the station he's working while also listening on his TX frequency. It's very easy to find where DX is listening using this technique. Thanks Bill. I've always just used my 2nd VFO for that. 73, John Harper AE5X http://www.ae5x.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 Improvement Ideas--Adding on
Vic, Yes, two relay boxes (actually I am using 4 in total - it may expand to 5 sometime). The KRC2 can switch multiple relay boxes - switch both boxes for any one band and then select between the relay boxes with the ANT1/2 selection. In fact, with the KRC2 there are both positive active (external power supply) and negative acting (grounded when active), so these outputs can be combined logically by simply wiring them together - logical OR as well as logical AND functions can be created. The KRC2 is truly a versatile relay controller. 73, Don W3FPR Vic K2VCO wrote: Don Wilhelm wrote: If you have 2 banks of antennas (1 bank tuned and the other presenting 50 ohms), the KRC2 can select the proper antennas for each band and the ANT1/2 button selects between the 2 antennas for each band - If you have more than 2 antennas on any band the KRC2 F4 button can be used to turn on the AC1 thru AC3 lines which can be used in conjuction with the normal band select outputs to select additional antennas - I find it much more sensible and automatic than antenna switches. I must be missing something. Let's say the KRC2 is operating a relay box connected to port 1. Then it will select an antenna for each band (we'll assume that these are the tuned antennas). You can connect ONE other antenna to port 2. Unless you have two relay boxes, which I guess is possible. Were you thinking of something else? I have a KRC2 and a KAT100 and have been thinking about the most effective way to use them. ___ 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 - Roger beep
Over here on this side of the big pond, it's considered rather crass. Rather like noisily breaking wind at church in the middle of the prayer. This caused by the shenanigans by CB operators on the 27 Mhz. band. Sadly duplicated by newbie amateur operators on 2 meter FM band frequently. Generally considered rude operating practices. No ill will meant to you guys in UK. 73, Sandy W5TVW - Original Message - From: Ken Kopp [EMAIL PROTECTED] To: David Ferrington [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Friday, May 04, 2007 10:34 AM Subject: Re: [Elecraft] K3 - Roger beep David, please understand the reaction from some over here on this side of the pond. Roger beeps, along with echo boxes are standard fare for the wanna-be hams on our CB channels. Actually, perhaps a roger beep makes a bit of sense in the marginal, sometimes imaginary world of VHF/UHF contesting QSO's ... 73! Ken Kopp - K0PP [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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.6.2/787 - Release Date: 5/3/2007 2:11 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] Now that we've covered roofing filters, a Q on sub-receivers
-Original Message- From: [EMAIL PROTECTED] As I understand it, the main purpose of a sub-rx is to allow diversity reception based on the fact that this 2nd receiver would be using a different antenna than the main rx, correct? No. That's just one use of a sub receiver. Here are some more: 1) When operating split, it lets you listen to your tx freq while the main rx listens to the other guy. 2) When contesting, you can park the sub rx on a rare one's pileup that you are trying to crack while the main rx is used to run a freq or to hunt pounce new ones. 3) You can be operating on one band/mode with the main rx and use the sub rx to check out other band/modes' activity at the same time. Yes, 1) and 2) can be done witrh judicious use of memories, A=B, SPLIT, RIT, XIT and other features. But a second receiver lets you do them *simultaneously*. There are probably others I haven't thought of. Which one is most important depends on what kind of operating you do. The sub/second receiver idea isn't new; the Ancient Ones were doing it a half century ago, but with truly separate receivers. In the '60s, Hallicrafters made some transceivers with dual receive but you needed the external VFO accessory, and what you got was the ability to listen to two freqs on the same band simultaneously, through the same rx chain. 73 de Jim, N2EY AOL now offers free email to everyone. Find out more about what's free from AOL at 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] K3 roger beep? Not!
There will be no roger beeps. End of thread :) 73, Wayne N6KR --- 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] K3 - Roger beep
On Fri, 4 May 2007, Sandy W5TVW wrote: Over here on this side of the big pond, it's considered rather crass. Rather like noisily breaking wind at church in the middle of the prayer. The K3WC(K3 Whoppie Cushion)...next thing ya know, the Aptos crew will offer a Joy Buzzer attachment for the keyer. As soon as I get back to the office, I will order my K3 and sign the form with invisible ink. Thom www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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 - Roger beep
From: David Ferrington [EMAIL PROTECTED] Sorry, I'm relatively new ham, so if that's frowned upon, forgive me. Only a lot of people in my club work VHF contests (I've ordered an XV144) and use a beep a lot. Dave, don't let them grind you down. A roger beep is very common is radio service, just not in the ham bands. It is a common sense feature that most folks (including astronauts) find helpful. Just not most hams. Hams say that on FM and AM phone you know the other fellow is done because the carrier is gone. On a repeater, there is a tone. On sideband, he says over. I would bet they sell 1,000 times more FRS radios with roger beep that all the ham radios combined. If you like roger beep, buy a mic that has it and be happy. I would draw the line, however, at echo and barnyard sounds. Ken KC2JDY ___ 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: Elecraft Digest, Vol 37, Issue 10
I could say, I take it you haven't tried VFH contesting? No, I'm a relatively new ham (never had a CB in my life) and VHF contesters in my club use a beep a lot. It was an honest question/suggestion from perhaps a naïve op. I've order a XV144 with my K3, because I want to run 2M too. However, I still haven't figured out why so many of you long term hams throw scorn etc on CB'ers (yes I;ve had some of the issues explained to me). I took my foundation with a couple ex CB'ers who wanted to do more DX. If we just turn them all away because they are/were CB'ers, we will be reducing the Ham fraternity even more. I think we need all the members we can get. However, I don't wish to be controversial or cause a=offence, so I'll leave it at that. On 4/5/07 18:30, [EMAIL PROTECTED] [EMAIL PROTECTED] sent: Message: 6 Date: Fri, 4 May 2007 09:30:56 +0100 From: David Pratt [EMAIL PROTECTED] Subject: Re: [Elecraft] K3 - Roger beep To: elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain;charset=us-ascii;format=flowed Let's leave that until Elecraft bring out a 27MHz option for the K3! I take it you have come to amateur radio from CB? 73 In a recent message, David Ferrington [EMAIL PROTECTED] wrote ... What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF -- David G4DMP Leeds, England, UK -- They are ill discoverers that think there is no land, when they can see nothing but sea. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) ___ 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] Now that we've covered roofing filters, a Q on subreceivers
Another effective use of subreceivers is for SO2V assisted contest operation. With software such as N1MM Logger, you can selectively pull packet spots into each headphone/VFO and time your calls - it's not only fast, but fun. I've got a short stereo recording from the '05 CQWW: http://n1eu.com/orion/so2v.htm 73, Barry N1EU ___ 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] Price Comparison and Comment
Well then, I have finally got to know the skinny on this ceiling filter (er roofing) issue and I am totally confused (still). I thought I had a handle on it (order them all), but now someone says that we DON'T need them all. How do you know which ones you do need? And I have seen someone say that one (or all) of them will be tuneable. Can some (again please) lay this out in laymens terms for the ignorant, non savy (ME) of us. Stan Rife W5EWA Houston, TX K2 S/N 4216 Lee Buller [EMAIL PROTECTED] wrote: Bill, You are right. After thinking on this for more than 10 minutesI came to the same conclusion. A K3 can be had for 1800 dollars in modular kit form...with just 100 watts and no bells and whistles. The 2.7 roofing filter comes with the unit, so you would have a workable unit after building it. So, the price comparison I put out last weekend was...well...wrong! Wrong on so many levels. I did not understand roofing filters at time and considered them IF Filters. I was informed by very nice people that not all five filters would be needed. So, that was a bogus assumption on my part. Also, I looked at the price from a full blown perspective. What I like about Elecraft is that you can put in the pieces when you can afford them. Not like other companies who do not offer that kind of flexibility. So...sorry about the poor email Lee Buller Making a mistake is not a problem...not learning from mistakes is a big problem. This is assuming the problem is not life or death In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense devine? ___ 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] Re: Elecraft Digest, Vol 37, Issue 10
Maybe people don't know/remember, but CB used to be civilized way back. I got into radio with a 100mw radio shack CB 'base station' one xtal tx (ch 14) and tunable receive. I was excited to work some older guys in the area, they were about 45 years old and ancient! No foul language, and everyone had a license and call sign, as I did when I got a 5 watt Lafayette rig. There was the older kid down the street with a beam, and likely a crappy amp as he got into peoples TV sets...but no foul language. Even today, there are places where its polite and nice on CB, in the country, in say Tennessee, when I went through on 40 to go to New Orleans after the big storm, nothing but nice stuff on CB. Soon as you hit the east coast, it was like a sewer... Brett N2DTS ___ 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] FOR SALE: K2 QRP COVER WITH KAT2 TUNER
FOR SALE: K2 QRP top cover complete with KAT2 20 watt antenna tuner, speaker, all connectors and wiring as originally built. Tuner works perfectly. Cover is spotless, scratchless, just like new. $140 shipped to your doorstep. Please contact off-list if interested. Thank you. Paul Webb, K5HKX Paul Webb [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] K3/100 antenna connector(s)
It would be nice to see N connectors in a radio of this class. If BNC is fine for the basic K2, why go to SO239 instead of an N socket for the 100w version ? OK everyone has them, but PL259s are a pain to install. ___ 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] Price Comparison and Comment
Bill, All of what you say is true *EXCEPT* for one item - and that is the AGC. The hardware AGC is developed before any DSP processing, so when there are strong signals inside the roofing filter passband, they will activate the AGC and reduce the receiver sensitivity. If you have the DSP cranked down to a narrow bandwidth, you may not even hear the offending strong signal because it is outside the DSP bandwidth but still inside the roofing filter bandwidth. BTW, this can happen on the K2 (and many other receivers) if a wide bandwidth is selected and the DSP is used to reduce the signal to only the desired one. That is not really tough to deal with if you are already listening to an S-9 signal even though an S-9 +30 signal comes on - the S-9 signal will be reduced to the equivalent of an S-4 or S-5 signal and that can easily be solid copy (because other signals in the DSP passband are similarly reduced). Now, if the signal you are trying to copy is an S-1 or S-2 level and an S-9 signal comes into the roofing filter passband (again it may be out of the DSP passband and will not be heard), the receiver gain will be reduced and you will no longer hear the S-1/S-2 signal - just like QSB, but it is QSB induced in the receiver, not due to propagation effects. I will have at least one narrow filter available in my K3. Bill, you were correct that a filter is needed for each major mode, but the filters that any one person needs will be determined by their operating habits, and not based on the 'average'. For ragchewing and casual contacts, even the wide 2.7 kHz filter may be all that is needed, but for serious CW, QRP, contesting or DX chasing, an array of filters will be needed - just how many will depend on the operator's desires to reduce QRM and the amount available in the ham radio budget. 73, Don W3FPR Bill Tippett wrote: W5EWA: but now someone says that we DON'T need them all. Definitely not...unless we have more money than sense. You need only ONE per major mode, which will cover the widest bandwidth you ever expect to use in that mode. For example: CW - 500 or 400. 250 and 200 are definite overkill IMHO and not necessary in addition to narrow DSP BWs. The reason is that IMD/BDR spurious issues at 500 Hz will be far overridden by other issues such as phase noise, key clicks, etc that come from the transmitted signals. There is no point in making a receiver many dB better than the environment in which it must live! No matter how good a receiver is it cannot eliminate transmitter defects (maybe Flex's SDR-X can but that remains to be proven). SSB - 2.7 kHz unless you want ESSB (not sure how high that goes these days but IMHO we should be trying to minimize communications bandwidths rather than playing broadcast disc jockey (my personal opinion!). Those folks should go to 29 MHz FM if they want to do that. AM - 6 kHz FM - 15 kHz In fact you may not need ANY filters beyond the 2.7 kHz stock filter unless you expect to have lots of very close spaced S9+30 dB signals on CW (e.g. huge low-band pileups or in contests). The 2.7k should be perfectly adequate for nearly any situation on SSB, although it wouldn't surprise me to see someone offer 1.8 kHz, mainly for contesters. A roofing filter's purpose is simply to minimize spurious artifacts from being created *inside* the RX by external signals. It does NOT create the ultimate selectivity (which is determined by the DSP filter at the 2nd IF). Please read the last sentence again! Here's a simple summary: Antenna roofing filter DSP filter ear. ...roofing filter prevents very strong signals from creating spurious (i.e. *NOT REAL*) signals which will then appear inside the DSP. ...DSP filters provide the ultimate selectivity (i.e. separating the *REAL* signals from each other). The number of poles (i.e. shape factor of the filter) can affect IMD/BDR issues inside the RX. For this reason hopefully Elecraft will provide actual IMD/BDR measurements with each option to help answer the following questions: 1. Is the optional 8-pole 2.8 kHz better than the stock 5-pole 2.7 kHz (by better I mean resulting in better IMD/BDR performance which is the primary purpose of a roofing filter). 2. Is the 5-pole 500 Hz better than the 8-pole 400 Hz? 3. Is the 8-pole 250 Hz better than the 5-pole 200 Hz? (academic to me since I don't feel either is necessary ...see comment above re TX key clicks, phase noise, etc). The variable BW filters are interesting but I would not consider them until we have some actual results for IMD/BDR. They are NOT providing ultimate selectivity as they do in the case of the K2, which seems to be confusing many folks. 73, 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,
Re: [Elecraft] Price Comparison and Comment
At 07:34 PM 5/4/07, Don Wilhelm wrote: All of what you say is true *EXCEPT* for one item - and that is the AGC. Don you are absolutely correct. The reason I never considered it is that I have never experienced it with my Orion. I seldom operate with strong signals spaced much closer than 500 Hz. The most severe case of this may be in the CQ 160 CW Contest where it's not uncommon for S9+20 to 30 signals to be spaced every 500 Hz. With typical key click bandwidths, very few people will try to get closer than 500 Hz. Given 500 Hz signal spacing and given a 500 Hz BW filter, the filter easily knocks them down to a reasonable level, since the filter BW is +/- 250 Hz and the signals are +/- 500 Hz. Orion uses a two-stage AGC system, one is analog and ahead of the DSP. It has has the main function of preventing over-driving the DSP stage. ADC overload can never be allowed to occur because when that happens, signals are irrevocably corrupted. Signals that are larger than the full-scale range of the ADC must force reduction of gain in the analog section of the receiver. So both analog and digital AGCs are used in the Orion. Resort to analog AGC only need be made when signals inside the roofing bandwidth exceed about S-9 plus 30 dB. At that point, sensitivity is reduced but what we are discovering is that phase-noise performance-- as determined by reciprocal-mixing measurements-- already limits what you can hear. So performance is phase-noise limited and not DSP limited. Even so, the Orion gives you the option of kicking in a crystal filter, preventing movement of the analog AGC and the sensitivity reduction described above. http://www.doug-smith.net/orion.htm As stated, this analog AGC does not activate until signals reach the S9+35 range. The second AGC is digital and internal to the DSP (which works very well). As the resolution and speed of ADC hardware improve, digital radio receivers become less dependent on analog AGC to meet dynamic-range requirements. State-of-the-art 24-bit IF-DSP converters, such as those used in the Ten-Tec Orion, produce about 100 dB of dynamic range. That means a receiver can handle signals from the noise floor to almost 40 dB over S9 without analog AGC. Above that level, analog AGC is still necessary to maintain the linearity of analog circuits and to prevent overload in the ADC hardware. http://www.doug-smith.net/dspdynamics.htm I haven't seen much about the K3 AGC but I hope it uses a similar same technique as Orion. I have NEVER heard any AGC pumping in Orion, even under severe situations like the CQ 160 CW Contest which I consider the ultimate test for any receiver. I guess that's why it did not occur to me to mention it. Maybe one of the Elecraft folk will tell us more abour the K3 AGC. 73, 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
[Elecraft] Why all those filters - K3
Looking at the new K3 order form - one is faced with a potential order selection of some 8 or more filters. And some others coming on the scene, have been mentioned. Many are called roofing filters. I'm hoping Elecraft will explain the use, benefit and potential shortcoming of one's K3 - if they do or do not order any or all of these filters. For example, if I just want to have a slightly better narrow CW and narrow SSB filter selectability - which of all these - would be natural to order? I'm surprised of the need to order all of these filters in a 2007 DSP-based radio. For example, for Icom's IC-7000 - there are no optional filters to buy. Filters have gotten to be big ticket items, for rigs that could need them - ala $135 for a single SSB filter for a IC-703. $80 bucks a wack, for a IC-706MKIIG. And again - none are listed in the options list for a IC-7000. How do they perform the roofing function, and selectability function? Fred, N3CSY .learning, learning 2007 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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] Price Comparison and Comment
Bill, I did ask Wayne about the AGC (with respect to the roofing filter selection) and he indicated that the AGC was developed in hardware before the A/D conversion and there is additional AGC action created in the DSP. As I understand it, it is similar to that which you describe in the Orion. Yes, from a receiver performance standpoint, only the A/D overload problem counts (and it is critical), but from an operating (AGC pumping) standpoint, there can be undesired performance in the presence of strong signals that pass through the roofing filter even though they are filtered out by the DSP because they will reduce the overall gain of the receiver. Quite apart from the receiver specs, it does show up during operation and the AGC pumping can be a real problem for weak signal reception regardless of the total dynamic range of the receiver. We both await the real details on the K3 AGC (and other things too). 73, Don W3FPR Bill Tippett wrote: At 07:34 PM 5/4/07, Don Wilhelm wrote: All of what you say is true *EXCEPT* for one item - and that is the AGC. Don you are absolutely correct. The reason I never considered it is that I have never experienced it with my Orion. I seldom operate with strong signals spaced much closer than 500 Hz. The most severe case of this may be in the CQ 160 CW Contest where it's not uncommon for S9+20 to 30 signals to be spaced every 500 Hz. With typical key click bandwidths, very few people will try to get closer than 500 Hz. Given 500 Hz signal spacing and given a 500 Hz BW filter, the filter easily knocks them down to a reasonable level, since the filter BW is +/- 250 Hz and the signals are +/- 500 Hz. Orion uses a two-stage AGC system, one is analog and ahead of the DSP. It has has the main function of preventing over-driving the DSP stage. ADC overload can never be allowed to occur because when that happens, signals are irrevocably corrupted. Signals that are larger than the full-scale range of the ADC must force reduction of gain in the analog section of the receiver. So both analog and digital AGCs are used in the Orion. Resort to analog AGC only need be made when signals inside the roofing bandwidth exceed about S-9 plus 30 dB. At that point, sensitivity is reduced but what we are discovering is that phase-noise performance-- as determined by reciprocal-mixing measurements-- already limits what you can hear. So performance is phase-noise limited and not DSP limited. Even so, the Orion gives you the option of kicking in a crystal filter, preventing movement of the analog AGC and the sensitivity reduction described above. http://www.doug-smith.net/orion.htm As stated, this analog AGC does not activate until signals reach the S9+35 range. The second AGC is digital and internal to the DSP (which works very well). As the resolution and speed of ADC hardware improve, digital radio receivers become less dependent on analog AGC to meet dynamic-range requirements. State-of-the-art 24-bit IF-DSP converters, such as those used in the Ten-Tec Orion, produce about 100 dB of dynamic range. That means a receiver can handle signals from the noise floor to almost 40 dB over S9 without analog AGC. Above that level, analog AGC is still necessary to maintain the linearity of analog circuits and to prevent overload in the ADC hardware. http://www.doug-smith.net/dspdynamics.htm I haven't seen much about the K3 AGC but I hope it uses a similar same technique as Orion. I have NEVER heard any AGC pumping in Orion, even under severe situations like the CQ 160 CW Contest which I consider the ultimate test for any receiver. I guess that's why it did not occur to me to mention it. Maybe one of the Elecraft folk will tell us more abour the K3 AGC. 73, 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 ___ 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] Price Comparison and Comment
Bill, I've had my eye on the Orion since it came out. I almost got to the point of clearing getting one with my xyl, but about that time the QST review came out and it wasn't all that kind to the Orion. So I've held on to my K2. I've been happy with it, but it's human nature to always look for a bit more. The reason I'm writing you is I'd like to know if you think the (2) QST reviews were unfair and what you think of the Orion... (Your reply, below, is quite complimentary; but are you coping with other deficiencies to get the raw performace the Orion is giving you?) Tnx in advance 73, Lenny W2BVH -- Original message -- From: Bill Tippett [EMAIL PROTECTED] At 07:34 PM 5/4/07, Don Wilhelm wrote: All of what you say is true *EXCEPT* for one item - and that is the AGC. Don you are absolutely correct. The reason I never considered it is that I have never experienced it with my Orion. I seldom operate with strong signals spaced much closer than 500 Hz. The most severe case of this may be in the CQ 160 CW Contest where it's not uncommon for S9+20 to 30 signals to be spaced every 500 Hz. With typical key click bandwidths, very few people will try to get closer than 500 Hz. Given 500 Hz signal spacing and given a 500 Hz BW filter, the filter easily knocks them down to a reasonable level, since the filter BW is +/- 250 Hz and the signals are +/- 500 Hz. Orion uses a two-stage AGC system, one is analog and ahead of the DSP. It has has the main function of preventing over-driving the DSP stage. ADC overload can never be allowed to occur because when that happens, signals are irrevocably corrupted. Signals that are larger than the full-scale range of the ADC must force reduction of gain in the analog section of the receiver. So both analog and digital AGCs are used in the Orion. Resort to analog AGC only need be made when signals inside the roofing bandwidth exceed about S-9 plus 30 dB. At that point, sensitivity is reduced but what we are discovering is that phase-noise performance-- as determined by reciprocal-mixing measurements-- already limits what you can hear. So performance is phase-noise limited and not DSP limited. Even so, the Orion gives you the option of kicking in a crystal filter, preventing movement of the analog AGC and the sensitivity reduction described above. http://www.doug-smith.net/orion.htm As stated, this analog AGC does not activate until signals reach the S9+35 range. The second AGC is digital and internal to the DSP (which works very well). As the resolution and speed of ADC hardware improve, digital radio receivers become less dependent on analog AGC to meet dynamic-range requirements. State-of-the-art 24-bit IF-DSP converters, such as those used in the Ten-Tec Orion, produce about 100 dB of dynamic range. That means a receiver can handle signals from the noise floor to almost 40 dB over S9 without analog AGC. Above that level, analog AGC is still necessary to maintain the linearity of analog circuits and to prevent overload in the ADC hardware. http://www.doug-smith.net/dspdynamics.htm I haven't seen much about the K3 AGC but I hope it uses a similar same technique as Orion. I have NEVER heard any AGC pumping in Orion, even under severe situations like the CQ 160 CW Contest which I consider the ultimate test for any receiver. I guess that's why it did not occur to me to mention it. Maybe one of the Elecraft folk will tell us more abour the K3 AGC. 73, 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 ___ 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: Elecraft Digest, Vol 37, Issue 10
On Friday, 04 May 2007 08:59:36,David Ferrington M0XDF wrote the following: What do people think of an optional 'roger beep' (don't know any other term for it) at the end of each trasmission, i.e. triggered by the PTT coming off? M0XDF ** A roger beep? Only if a lifetime supply of emesis bags are included, along with a list of Ten Codes. Also, the AF Gain should go up to eleven. 73, KAØPMD Reno, NV Don't pick lemons. See all the new 2007 cars at Yahoo! Autos. http://autos.yahoo.com/new_cars.html ___ 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] Why all those filters - K3
I ordered mine with no crystal filters. They can always be installed later and by then I will have learned enough to know what I really want or need. And ... I know I am not wasting my money with a hasty decision. Remember, the DSP will do a good job of filtering without any crystal filters. As I understand it the radio will work well with none of the optional crystal filters installed. By the time I get to that point I am sure some consensus will have formed as to the best way to approach filter choice for various operating preferences. Don K7FJ Looking at the new K3 order form - one is faced with a potential order selection of some 8 or more filters. And some others coming on the scene, have been mentioned. Many are called roofing filters. I'm hoping Elecraft will explain the use, benefit and potential shortcoming of one's K3 - if they do or do not order any or all of these filters. For example, if I just want to have a slightly better narrow CW and narrow SSB filter selectability - which of all these - would be natural to order? I'm surprised of the need to order all of these filters in a 2007 DSP-based radio. For example, for Icom's IC-7000 - there are no optional filters to buy. Filters have gotten to be big ticket items, for rigs that could need them - ala $135 for a single SSB filter for a IC-703. $80 bucks a wack, for a IC-706MKIIG. And again - none are listed in the options list for a IC-7000. How do they perform the roofing function, and selectability function? Fred, N3CSY .learning, learning 2007 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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 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] Why all those filters - K3
I'm hoping Elecraft will explain the use, benefit and potential shortcoming of one's K3 - if they do or do not order any or all of these filters. More importantly, that the full specs are released. Factors such as group delay can be very important when judging a filter for a purpose. Why so many filters - in very loose terms, to protect everything after filter and not let more reach the back end than necessary. You do not want the ADC overloading or the AGC reacting to signals which you can not hear. I am glad that Elecraft is offering a large range of filters, which should allow one to tailor the radio to needs and budget. I am holding back on the filters until I know more. Which filters and how many really depends on your use of the radio. For some, 200Hz/250Hz filters will be very important (40m in EU especially during contests) and for others senseless overkill. I will likely end up with a whole collection of filters in my K3, and am very very curious about the variable bandwidth filters. vy 73 de toby -- DD5FZ, 4N6FZ (ex dj7mgq, dg5mgq, dd5fz) K2 #885, K2/100 #3248 K3/100 #??? ( #200) DOK C12, BCC, DL-QRP-AG ___ 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] Price Comparison and Comment
Hi Don, At 08:47 PM 5/4/07, Don Wilhelm wrote: I did ask Wayne about the AGC (with respect to the roofing filter selection) and he indicated that the AGC was developed in hardware before the A/D conversion and there is additional AGC action created in the DSP. As I understand it, it is similar to that which you describe in the Orion. If it is like Orion's I'll be happy! Yes, from a receiver performance standpoint, only the A/D overload problem counts (and it is critical), but from an operating (AGC pumping) standpoint, there can be undesired performance in the presence of strong signals that pass through the roofing filter even though they are filtered out by the DSP because they will reduce the overall gain of the receiver. Quite apart from the receiver specs, it does show up during operation and the AGC pumping can be a real problem for weak signal reception regardless of the total dynamic range of the receiver. I'm not sure I agree. If analog AGC is not activated, there is no analog gain change or pumping. According to the note I posted from Doug Smith, the DSP can internally handle AGC within the ballpark of 100 dB (noise floor to S9+40). It first filters signals digitally and then applies AGC only to signals appearing within the selected DSP bandwidth, so there is no pumping by signals outside the DSP bandwidth...unless I misunderstand ...which is completely possible of course! All I can say is I have never experienced the problem in Orion. I've got to get ready for a symphony concert now so hopefully all will be answered in the fullness of time! 73, Bill ___ 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] W3FPR said
Don said: We both await the real details on the K3 AGC (and other things too). There are a TON more than just both waiting for the full complement of specs. and details. Just cuz some guys can't wait (I see that the 50% deposit now only assures a low serial number), there are quanta more waiting for real numbers. 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] Why all those filters - K3
On Fri, 4 May 2007, Don Ehrlich wrote: I ordered mine with no crystal filters. They can always be installed later and by then I will have learned enough to know what I really want or need. And ... I know I am not wasting my money with a hasty decision. Hmmm, didn't see no filters as an order option. Thom www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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] OT: K3 Vanity S/N's
There was a recent Post asking about the possibility of Vanity S/N's. If that ever happens (and probably unlikely to ;-)) ), I'd like to get 1007...Shaken, not Stirred! ;-~)) 72 de N8PVZ ---bernie Yabba Dabba Doo! ---Fred Flinstone __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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] W3FPR said
I placed my order early, at Visalia, because I could actually see and hear the radio and because I have great faith in the engineering capabilities of both Eric and Wayne. The K2 has been an absolutely standout product from its introduction and as far as I can see the K3 will continue the tradition! Doug W6JD -- Original message -- From: Thom LaCosta [EMAIL PROTECTED] On Fri, 4 May 2007, DOUGLAS ZWIEBEL wrote: Just cuz some guys can't wait (I see that the 50% deposit now only assures a low serial number), there are quanta more waiting for real numbers. Some of the early orders may have had motivations other than getting a low number. The experiences and reports of the early adopters should not only prove interesting, but also helpful for those that are still trying to see more clearly as they ponder the glass whilst paying attention to the winds and the crys of the ether birds. Thom k3hrn www.baltimorehon.com/ Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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] NOT ELECRAFT - PA3AKE H-MODE MIXER MEASUREMENT UPDATE
Hi all, I like to inform you that Martein Bakker, PA3AKE, has updated his web page reporting his measurement on the H-Mode Mixer. The update is relative to measurement done on the I7SWX 2T H-Mode Mixer using the FSA3157 and the original 2T version with Pericom PI5C3125 fast bus switch. A major comment reported by Martein on the 2T HMM version with FSA3157 is: 2 transformer version is an interesting branch in H-Mode mixer development. Most impressive is the spur reduction possible with home made transformers with this configuration in combination with the FSA3157 switches. PA3AKE web page is: http://www.xs4all.nl/~martein/pa3ake/hmode/ Below is reported the Contents list of all measurements done and comments reported by Martein. I am sure all those that have visited and will visit his page will find one of the most complete reports done on the important H-Mode Mixer developed by Colin Horrabine, G3SBI. 73 and enjoy the reading Gian I7SWX H-Mode mixer Overview Contents 1. Introduction 2. IP3 measurement / limitations o Signal Generators and Hybrid Combiner o Post Mixer Roofing Filter o Pre Mixer Band-pass Filters o Mixer Transformers 3. Fairchild switches o FSAV430 o FSAV450 o FSAV330 o FSAV332 o FST3125 o NC7SZ384 o FSA3157 o FSA3157 + 74AC04 4. Mini-Circuits transformers o TT4-1A o T4-1 o ADTT4-1 o T1-1T o ADTT1-1 o ADTT1-6 o ADT1-6T o TT1-6 o T1-6T o ADT1-1WT 5. Homebrew transformers o FT37-43 toriod o BN43-2402 2-Transfomer H-Mode mixer 6. Mixer symmetry 7. Conclusion 8. Acknowledgments 9. Appendix AD9951 DDS spurs on 15M __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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 improvements
Totally agree with you, especially the QSK. N2TK, Tony #3481 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of DOUGLAS ZWIEBEL Sent: Friday, May 04, 2007 9:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K2 improvements In no particular order (all are needed). 1. MUCH BETTER QSK 2. Stable output power 3. Opto-coupler for RIT/XIT (don't take away XIT and substitute IF shift) with CLEAR function 4. As turn RIT/XIT, have offset (in KHz) momentarily replace freq display so we can see the amount of offset (essential for XIT). Ala K3. 5. MUCH BETTER QSK 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
RE: [Elecraft] K2 improvements
I can't get above about 16WPM and hear clearly between the dits like I am doing right now with my TS950SDX as I try to work BS7H. N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Darwin, Keith Sent: Friday, May 04, 2007 9:41 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K2 improvements I've loved the QSK performance of my K2 and feel it is superior to the several TenTec rigs I've owned. Could you be more specific as to what needs to be improved? Thanks! - Keith N1AS - - K2 5411.ssb.100 - -Original Message- From: DOUGLAS ZWIEBEL 1. MUCH BETTER QSK 5. MUCH BETTER QSK ___ 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] Why all those filters - K3
G'day, Not seen any mention of the 1.0kHz roofing filter. Good looking passband and for me it would be good up front for general CW. My K2 CW filters are set for 1.0kHz, 700Hz, 400Hz and 200Hz. I mainly use 700Hz, it gives presence and drop to 400Hz if really necessary. 200Hz just seems too dead, though nothing wrong with the signal level. My DSP audio filters are set just a little tighter to clean up the ultimate rejection. It has been mentioned that the K2 DSP noise reduction works better with a bit wider source spectrum to chew on so 1.0kHz looks like a good starting point with maybe something tighter if AGC pumping is a problem during contests. Regards, Mike VP8NO - Original Message - From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, May 04, 2007 4:37 PM Subject: [Elecraft] Why all those filters - K3 | Looking at the new K3 order form - one is faced | with a potential order selection of some 8 or | more filters. And some others coming on the | scene, have been mentioned. Many are called roofing | filters. | | I'm hoping Elecraft will explain the use, benefit | and potential shortcoming of one's K3 - if they do | or do not order any or all of these filters. ___ 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] I'm solidly in the queue ....
G'day, | Well, thats what Lisa told me. No formal acknowledgement yet, but I'm in the | K3 queue and I still have to get past the big one - telling my xyl. But as | she is coming to Dayton with me I guess there is more than a chance she will | find out, especially when I tell her we have stand by the Elecraft booth and | hand out flyers ... | It says a lot for Elecraft that so may are willing to pay up front for a rig | that few have seen, let alone tested on air. My first K2 was #609; will I now | get K3 #609 ? Sounds as if its heading that way. But #161 would be nice ! | John G3JAG I raised the question with sales of reserving a serial number, my K2 is #1400 and it would be a nice touch to have K3 #1400. No response to date. Regards, Mike VP8NO ___ 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] CAT on K3
I was looking at the specs on the K3, and they look impressive. However, I was wondering which CAT functionality will be included. Will it be possible to control the pot settings (AF/RF/mic gain/NB gain, notch, passband tuning, variable bandwidth IF filtering, etc etc) via the RS232 port? In other words, will most if not all of the rig's functionality be controllable using a software interface such as Simon's Ham Radio Deluxe? 73, Bob NE5RD ___ 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] CAT on K3
The word is that anything that can be done from the front panel can be done from the computer interface. 73, doug From: Robert Dwiggins II [EMAIL PROTECTED] Date: Fri, 4 May 2007 18:12:35 -0500 I was looking at the specs on the K3, and they look impressive. However, I was wondering which CAT functionality will be included. Will it be possible to control the pot settings (AF/RF/mic gain/NB gain, notch, passband tuning, variable bandwidth IF filtering, etc etc) via the RS232 port? In other words, will most if not all of the rig's functionality be controllable using a software interface such as Simon's Ham Radio Deluxe? 73, Bob NE5RD ___ 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] KUSB
The KUSB Universal Serial Bus Adapter is an external? gizmo that will allow us rs232-less folks to control the K3 via a USB cable or and infernal board? Thom www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ 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] I'm solidly in the queue ....
Just got in the 50% deposit queue myself; afraid that if I don't, I won't be able to get one until next year some time... If then... :-) Bill / W5WVO Mike Harris wrote: G'day, Well, thats what Lisa told me. No formal acknowledgement yet, but I'm in the K3 queue and I still have to get past the big one - telling my xyl. But as she is coming to Dayton with me I guess there is more than a chance she will find out, especially when I tell her we have stand by the Elecraft booth and hand out flyers ... It says a lot for Elecraft that so may are willing to pay up front for a rig that few have seen, let alone tested on air. My first K2 was #609; will I now get K3 #609 ? Sounds as if its heading that way. But #161 would be nice ! John G3JAG I raised the question with sales of reserving a serial number, my K2 is #1400 and it would be a nice touch to have K3 #1400. No response to date. Regards, Mike VP8NO ___ 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] CAT on K3
... In other words, will most if not all of the rig's functionality be controllable using a software interface such as Simon's Ham Radio Deluxe? Ultimately, yes. Every control on the K3 is read by the same MCU that interfaces to the serial port. There are no signals that pass through any switches or pots. 73, Lyle KK7P ___ 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] C.A.T. on the K3: not just the usual command set!
On May 4, 2007, at 4:20 PM, Doug Faunt N6TQS +1-510-655-8604 wrote: The word is that anything that can be done from the front panel can be done from the computer interface. Yes. But our remote control interface also allows the computer to send low-level signal processing and control commands directly to both the main and sub receiver DSPs, bypassing the main microcontroller. There are on the order of 100 specialized DSP commands, including those for setting up arbitrary filter bandwidths and center frequencies. I don't know if any other transceiver gives you this level of control. It'll be a lot of fun for software developers! For example, you could create your own DSP filter profiles for specialized applications. One other tidbit: Once we've caught up with other firmware commitments, we hope to add stored macro capability, with supplemental commands for timing intervals in seconds. This would allow you to, in effect, write little applications that run on the K3 unattended, doing multi-band/-mode frequency hopping, complex beacons, hunting/scanning for CQs from specific prefixes in CW/data modes, etc. You'd be able to run/stop a number of individual macro sequences via the front panel. A guy can dream, right? We'll be seeking input on all this when the time comes. Not yet :) 73, Wayne N6KR --- 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 Improvement Ideas
On May 4, 2007, at 8:12 AM, Tom Zeltwanger wrote: That was an outstanding post. Thanks. I have only been using the K2 for a few months, and the KAT100 for a couple weeks, and I already want many of the things on your list. I've been using the K2 as my main rig since spring of 2002. It really is a great radio. There's only a few shortcomings. I especially agree that some enhancements to the tuning raes would be nice. I am constantly switching between rates, and wishing for variable speed tuning, or some additional rates in between the existing ones. 10 Hz is fine for CW and RTTY. A bit faster tuning is needed for SSB, 50 Hz works OK, since that is 4.8 kHz per revolution of the knob. I would also like a CW contester's keypad. Something I could sit next to my key, and get access to all the CW memories, filter selection, RIT, tuning, and a few other functions. Yup, that's what I had in mind with the PFn module. While for most contesting, I don't use FPLY -- I have the computer do the sending. But DXing and some light contesting I'll use FPLY to access the memories. I'm always forgetting and then I end up sending something instead of doing the function I want. Dedicated keys would be nice. In fact, I may build one, but I'm sure something from the factory would be better matched to the rig. If others are interested in something like this, please let me know. The tricky part would be in not defacing the front panel board. You'd want to come in through the AUXBUS. Since the protocol isn't published, it really has to come from Elecraft. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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 Improvement Ideas--Adding on
On May 4, 2007, at 8:14 AM, Don Wilhelm wrote: In my mind it is already there, but better - just do a TUNE once on each band where your antenna is resonant and the K2 will remember - I regard that as better than a bypass function. The one thing that gets me with this is that if something happens to your antenna, you might not notice, especially if you have more than one antenna on each port and you press the Tune button after switching bands. The rig will be happy even if the antenna is partly busted. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] K3/100 antenna connector(s)
I would prefer the BNC. Quick, good and easy. What else do you want? Evert PA2KW -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of JACrux Sent: Friday, May 04, 2007 22:16 To: elecraft@mailman.qth.net Subject: [Elecraft] K3/100 antenna connector(s) It would be nice to see N connectors in a radio of this class. If BNC is fine for the basic K2, why go to SO239 instead of an N socket for the 100w version ? OK everyone has them, but PL259s are a pain to install. ___ 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 improvements
On May 4, 2007, at 9:18 AM, DOUGLAS ZWIEBEL wrote: 1. MUCH BETTER QSK There is a mod out there for faster QSK. I find the QSK operation to be quite good myself, but then I'm no QRQ operator, either. 2. Stable output power When you are trying to tune your amp, this is annoying. 3. Opto-coupler for RIT/XIT (don't take away XIT and substitute IF shift) with CLEAR function That's going to be a pretty big mod -- are we going to replace the entire front panel board? Where would we put the 4. As turn RIT/XIT, have offset (in KHz) momentarily replace freq display so we can see the amount of offset (essential for XIT). Ala K3. Better yet, when we rotate the offset, have it display, much as with the Power and Keyer Speed controls -- that way, you can dial it back to zero. This is a great idea. I personally don't see much use for XIT. I'd rather use SPLIT and put the Tx frequency in VFO B. I can just hold REV and hear my Tx frequency. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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
Does K3 have a variable delay (0-50ms) to control older amps TX relays (ie; SB-220, L4B, etc)? What is voltage/current limit to control TX amp relays (ie; SB-220, L4B, etc)? If using an external receiver with K3 is the RX ANT OUT the correct connection to get signal to the external RX? I see a PHONES connector on rear panel. If used how does one switch between speaker and headphones? I like the idea to get MIC and HEADPHONES off the front panel. Is the PA circuit breaker readily available if needed? Can ANT1 and ANT2 be set and stored by band? ___ 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 Improvement Ideas--Adding on
True, but I seem to recall he decided the return on the effort involved wasn't worth it. 73, Bob N6WG - Original Message - From: Bill Coleman [EMAIL PROTECTED] To: Robert Tellefsen [EMAIL PROTECTED] Cc: wayne burdick [EMAIL PROTECTED]; Elecraft elecraft@mailman.qth.net Sent: Friday, May 04, 2007 5:05 PM Subject: Re: [Elecraft] K2 Improvement Ideas--Adding on On May 4, 2007, at 12:14 AM, Robert Tellefsen wrote: I'd also like to see an improvement in the cw crystal filter to improve the signal suppression outside the filter passband. I'm pretty happy with the CW filter. It has good suppression outside the passband for me -- although I'm considering making a couple of bypass cap mods to improve this. I think KI6WX published a mod that involved a half-dozen chip capacitors. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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
If using an external receiver with K3 is the RX ANT OUT the correct connection to get signal to the external RX? Yes. I see a PHONES connector on rear panel. If used how does one switch between speaker and headphones? I like the idea to get MIC and HEADPHONES off the front panel. Plug in headphones to either the front or rear phones jack and the speaker is muted. Is the PA circuit breaker readily available if needed? Yes, it is on the rear panel, part of the fan assembly. Can ANT1 and ANT2 be set and stored by band? Yes. 73, Lyle KK7P (I'll let someone else answer the first two questions you asked.) ___ 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: K3
Lyle Johnson wrote: Can ANT1 and ANT2 be set and stored by band? The settings for ANT1 and 2 are stored on a per-band, per-GP-memory basis. Also stored is up to a 5-character text label for each antenna. So, when you change antennas, it'll tell you whether you're on the YAGI or the VERT, etc. The antenna name is also flashed briefly whenever you change bands, as a quick reminder that's more meaningful than just 1 or 2. 73, Wayne N6KR --- 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] K3
I hope (and expect) that the K3 has more robust headphone jacks. 73, Bob N6WG - Original Message - From: Lyle Johnson [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: ELECRAFT Elecraft@mailman.qth.net Sent: Friday, May 04, 2007 5:17 PM Subject: Re: [Elecraft] K3 If using an external receiver with K3 is the RX ANT OUT the correct connection to get signal to the external RX? Yes. I see a PHONES connector on rear panel. If used how does one switch between speaker and headphones? I like the idea to get MIC and HEADPHONES off the front panel. Plug in headphones to either the front or rear phones jack and the speaker is muted. Is the PA circuit breaker readily available if needed? Yes, it is on the rear panel, part of the fan assembly. Can ANT1 and ANT2 be set and stored by band? Yes. 73, Lyle KK7P (I'll let someone else answer the first two questions you asked.) ___ 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] Re: K3
Now that is COOL! 73, Bob N6WG - Original Message - From: wayne burdick [EMAIL PROTECTED] To: Elecraft Reflector Elecraft@mailman.qth.net Cc: [EMAIL PROTECTED] Sent: Friday, May 04, 2007 5:28 PM Subject: [Elecraft] Re: K3 Lyle Johnson wrote: Can ANT1 and ANT2 be set and stored by band? The settings for ANT1 and 2 are stored on a per-band, per-GP-memory basis. Also stored is up to a 5-character text label for each antenna. So, when you change antennas, it'll tell you whether you're on the YAGI or the VERT, etc. The antenna name is also flashed briefly whenever you change bands, as a quick reminder that's more meaningful than just 1 or 2. 73, Wayne N6KR --- 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 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: K3
[EMAIL PROTECTED] wrote: Does K3 have a variable delay (0-50ms) to control older amps TX relays (ie; SB-220, L4B, etc)? Yes. It also has a separate PTT input jack, so you can pre-switch the amp using a footswitch, etc. What is voltage/current limit to control TX amp relays (ie; SB-220, L4B, etc)? The keying device is rated at 200 volts, 6 amps. If using an external receiver with K3 is the RX ANT OUT the correct connection to get signal to the external RX? If you have an external receiver connected to RX ANT OUT, it will get RF from the K3's main antenna jack *if* you turn RX ANT on (K3 front panel switch). This is very useful, because it allows you to A/B test the K3 against a second receiver at the tap of a switch. 73, Wayne N6KR --- 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] Price Comparison and Comment
You seem to think the only time someone is going to use wider bandwidths is on a packed band. I personally only get on 80 or 40 on weekends, in the morning, when the band is wide open. You can say ssb is a waste, since its much wider than CW. Brett N2DTS SSB - 2.7 kHz unless you want ESSB (not sure how high that goes these days but IMHO we should be trying to minimize communications bandwidths rather than playing broadcast disc jockey (my personal opinion!). Those folks should go to 29 MHz FM if they want to do that. AM - 6 kHz FM - 15 kHz ___ 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 enhancements - one more
completely indep. VFOs (split modes, bands). 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] KDSP2 Turns Back On On Power-up?
Hi gang, I must have overlooked something in the KDSP2 manual. When I set the KDSP2 in my K2 to bypass, the next time I turn on the rig the KDSP2 is back on; it is no longer in bypass mode. How do I make the KDSP2 stay turned off through power-down and power-up? Thanks 73, Jeff NE2J (formerly WB5GWB) Long Island, NY ___ 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] KDSP2 Turns Back On On Power-up?
I must have overlooked something in the KDSP2 manual. When I set the KDSP2 in my K2 to bypass, the next time I turn on the rig the KDSP2 is back on; it is no longer in bypass mode. How do I make the KDSP2 stay turned off through power-down and power-up? On power-up, the KDSP2 is always on. The bypass mode is not sticky. 73, Lyle KK7P ___ 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] AF1 and W1 enclosures from W8FGU
I just wanted to put in some positive words for Dave Van Wallaghen's work on these two enclosures. I got them in the mail today and they are beautiful! I can't wait to put my W1 in the box and when I get around to making the AF1 I have a beautiful box for it as well. The past few months I've enjoyed melting a lot of solder. There is definitely something to be said for the slick aluminum (or plastic) enclosures that are used, but this clear Lexan enclosure that Dave has created is not only functional but shows off all your hard work. You could think of them as display cases even. Here are the links again (if you missed them the first time): http://w8fgu.home.comcast.net/af1encl.html (AF1 enclosure) http://w8fgu.home.comcast.net/w1encl.html (W1 enclosure) Thanks again, Dave! -john W4PAH ___ 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] KX1 improvements
To change the subject a bit, after thinking and comparing the K1 and KX1 the past couple months, I am considering purchasing a KX1 in the near future. I'm basically interested in it as a first real CW rig (other than the 40m Rock-Mite I've built and the SW+ 40m that is in the mail to me soon from Small Wonder Labs). The addition of th 30m and 80m board and coverage of the SW broadcasts is attractive as well. Those of you who have the KX1 (or decided against purchasing it), what improvements, add-ons, fixes, etc. would you suggest for this little radio? Thanks. -john W4PAH ___ 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
