Re: [Elecraft] Re: SSB Audio Problems
Paul, It might be worth doing the new VCO transformer mod. This adds a ferrite ring around the VCO toroid. Unfortunately this is an option and not standard on K2's. The power jumping may be reduced with this mod. Although you say the CW output is stable. http://www.elecraft.com/Apps/Power_Control_Mod.html 73 Stewart G3RXQ On Sun, 13 Nov 2005 21:06:53 +, Paul Wilton wrote: > Confession time - the raspy noise did turn out to be a AC magnetic field > > problem. I have a 2 foot long fluorescent tube above my desk, about 4 > foot away from my K2. That is what was causing the raspy audio. > > That leaves just one question- when a constant signal is injected into > the audio input in SSB mode, surely the output should also be a constant > level RF carrier. What I when looking at the RF with a scope, the peak > level jumps around by about 10-20% of the average peak level with a > random jump a few times a second. On CW the level is rock solid. Is > this expected or am I worrying about nothing in particular? It was > this behaviour that made me look at pin 6 of U2 on the SSB board since > this also seems to jump around once it has slowly reached its final value. > > 73 > > Paul > M1CNK > > Paul Wilton wrote: > >> Thanks for all the advice received so far from everyone on the list. >> >> A couple of clarifications >> a) I do not believe I have an A-C field problem. I will double >> check everything but I didn't have anything within close range. >> >> b) I don't also believe I have an RF induced problem since I am using >> a well shielded dummy load >> >> c) Re the power control, the behaviour I am seeing is occurring AFTER >> I hit the PTT. The output of pin 6, U2 (PWR CTRL) on the SSB board >> seems to drift upwards from 1 to 5 volts pretty slowly. However, if I >> turn the power control down, it drops very quickly. Perhaps this is >> the intended behaviour. >> >> d) Annoyingly the raspy CW seems to be intermittent - it has now has >> stop misbehaving now that I have time to look at it. I intend to >> listen to the BFO/VFO on another receiver next time it happens. >> >> Thanks again for all the advice. >> >> Paul >> M1CNK >> >> Message: 19 >> Date: Sat, 12 Nov 2005 12:59:58 -0800 >> From: "Ron D'Eau Claire" <[EMAIL PROTECTED]> >> Subject: RE: [Elecraft] Problems with SSB Audio >> To: "'Elecraft Discussion List'" >> Message-ID: <[EMAIL PROTECTED]> >> Content-Type: text/plain;charset="us-ascii" >> >> "Raspy" is often the description given a signal from a K2 that is sitting >> too close to a transformer so the a-c magnetic field modulates the >> VCO. If >> you have a power supply, desk lamp with a transformer built in, or any >> other >> transformer operated device nearby, try turning it off and see if your >> signal clears up. >> If so, there's a mod for the K2 that will dramatically improve its >> resistance to magnetic field effects. See www.elecraft.com for details. >> >> About the power control, are you expecting it to go to work before your >> transmit? It won't! The power control sets the "requested" output. The >> actual output doesn't change until you transmit again, and transmit long >> enough for the power monitor to note the actual output and adjust the >> circuit to match the "requested" level you set with the POWER control. >> It's >> not uncommon for ops to turn on a rig and notice that even though it's >> been >> in receive for half an hour, when the hit the key the power stays at zero >> for the first dash or several dits, depending upon the keying speed. >> That's >> because the power control circuits are only then getting some RF to work >> with to set the actual power output correctly. >> Ron AC7AC >> > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ Elecraft 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] Antenna Analyzer
Hi Kurt, You might be interested in this antenna analyser. http://www.qsl.net/iw3hev/ 73 Stewart G3RXQ On Sun, 13 Nov 2005 16:02:21 -0800 (PST), Kurt Loken wrote: > Hello All, > > I've decided that before I get too carried away with > antenna experiments (mag loops, etc.), it would > probably be a good idea to get an antenna analyzer. > > Anyone have a favorite they would like to recommend? > I'm leaning toward the Micro908 from the American QRP > Club. Anyone want to talk me into an MFJ or another > brand? > > Too bad Elecraft doesn't offer one. I would love to > see them do for antenna analyzers what they did for > antenna tuners with the T1. > > Regard, > > Kurt - ae6uj > > > __ > Yahoo! Mail - PC Magazine Editors' Choice 2005 > 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] Re: Competition for Elecraft???
Boy, you really fell behind, didn't you, Jerry? Three weeks go by and they slipped half a dozen transceivers out on you. Anyway, the Sienna appears to be a high end kit ($3,000 for the stripped model, double that for the whole deal) where you get a bunch of pre-assembled boards and cable them together. It also has a built in PC. I assume you get to cable that together, too. I know...be still my heart! http://www.getboost.com/dz/default.htm I might have been interested, but Dave Benson just released the HiMite so I ordered that instead. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of nr5a Sent: Sunday, November 13, 2005 5:38 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Re: Competition for Elecraft??? What is a Sienna??? I did a Google search and all I could find is its a Toyota??? Puzzled!! Jerry - NR5A - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Cc: Sent: Sunday, November 13, 2005 2:13 PM Subject: Re: [Elecraft] Re: Competition for Elecraft??? > In a message dated 11/13/05 11:30:41 AM Eastern Standard Time, > [EMAIL PROTECTED] > writes: > > >> It just seems, in the performance for dollar arena, if I have $3000 >> to spend, why would I buy the Sienna over the Ten-Tec Orion? > > Because: > > - you can work on a Sienna > - Sienna has some features Orion doesn't > - some folks with enough $$ will have *both* rigs... > > Or even >> >> two K2/100s w/ KAT100s, if I want the whole build-it experience? >> > > Because they're not the same. And it may not be about > performance-per-dollar > as much as about performance-no-matter-what-the-cost > > >> It's hard to perceive what niche the Sienna is targeting. > > Agreed. It's definitely not the same niche as the K2, seeing as how a > fully-loaded K2-100 is about half the price of a barebones Sienna. > > Another thought: If a ham homebrews a rig, the entire cost is on him/her. > But > if a ham homebrews a rig and offers copies of it as a kit, which is the > product of a small business, a lot of the cost can be transferred to the > business > as an expense. Someone who is enterprising enough to design a rig like the > Sienna (or the K2) could have the enterprise to make it a business. > > And we all win. > > 73 de Jim, N2EY > > ___ > 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 mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
Geoffrey Mackenzie-Kennedsy wrote: Not quite Vic. The BFO knob would control the frequency of a BFO thus establishing the frequency difference between the BFO and a desired signal in the receiver passband, as done in receivers for decades.Its output is fed only to the product detector when in use. So the knob allows you to vary the beat note or pitch. Tweaking the BFO knob would and should not affect the sidetone at all, since sidetone is usually only a transmit aid. What I should have said is that the sidetone frequency setting -- a digital value in the eeprom -- (not the sidetone itself, which as you point out is not important) is used to compute the dial reading and the transmit offset. So I suggest that you need to change this setting AND the BFO frequency. If you change the sidetone pitch in the menu (i.e., change the 'sidetone frequency setting') in the K2, you adjust the transmit offset as well as the monitor pitch. The trouble with this is that the BFO frequency doesn't change, so the passband is still centered on a signal whose pitch is what you used when you did CAL FIL, and if you have a narrow filter, you lose gain at the new pitch. If you change the BFO frequency by itself, then you don't lose gain, since the relationship between the signal frequency (in the IF) and the crystal filter hasn't changed. But the dial reading and transmit offset are off. Your solution of adding a second BFO just for receiving would theoretically work, except that you would need to use the 'real' sidetone pitch for zero-beating. -- 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] Elecraft CW Net Report for November 13th and 14th, 2005
Good Evening, The first net went pretty well with check ins from a couple KX1s and a few K2s. It appears Ray is on a scuba vacation but took along his KX1 so he could rest up from diving ;) He checked in as VP5/K2HYD if I got the call correct. At first I thought Virgin Islands but when I looked it up I found he is diving around the Turks and Caicos. His KX1 did very well but not nearly as well as the booming signal from Palmer, Alaska. Rick used a power supply to boost his output this evening. Did not quite hit S9 but he was close during his first call. Tom called for me from his abode in Central Missouri landing Doug down in California. Russ, N9IV, came and went. I heard his call but never was able to raise him again. This should have told me something because I just closed down the forty meter net with no check ins. Much like during the fox hunts last Thursday the band was very quiet. Sorry if you tried to check in but I could not hear anyone respond to my CQ ECN. I think that is the first shut out I have had during the Elecraft CW Net. May simply be an indication of how weak 40 has become at this time of night. The lists: At 2400z on 14050.50 kHz: N0SS - Tom - MO - K2 - 008 KL7CW - Rick - AK - KX1 - 798 VP5/K2HYD - Ray - Turks and Caicos - KX1 - 608 N9IV - Russ - IN - K2 - 4650 W6JD - Doug - CA - K2 - 1626 AB9V - Mike - IN - K2 - 3993 WL7BUN - Ron - AK - ? At 0300z on 7045 kHz: There were a lot of CQs but no responses. But, nothing ventured nothing gained. I will be back next week unless unforeseen circumstances prevent it. However, that has not happened yet so it mostly likely will not occur this week either ;) 73, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.8/166 - Release Date: 11/10/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna Analyzer
This caught my eye. Don't know if it is shipping yet or not http://www.timewave.com/TZ-900.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
[Elecraft] K1: 12m, 10m, or 6m
Has anyone had any luck (or even tried) making band modules for the K1 on 12/10/6? Or are there facts about the design that preclude this? David, k3tue . ___ 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] Antenna Analyzer
I've heard that the MFJ doesn't give the sign of the reactive component - in otherwords, can't tell whether it's a capacitor or an inductor. I have an Autek Research VA1 - can hardly believe that it has an old 68HC705P6 as its engine, but it works as advertised and I like it. Ian, G4ICV, AB2GR, K2 #4962 -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: Elecraft K1
Group, Need to sell my Elecraft K1 Manuals and various spair part kits. K1-4 Four-Band 5W CW Transceiver 40-30-20-15 meters KAT1 K1 Internal Automatic Antenna Tuner KBT1 K1 Internal Battery Adapter KFL1-2 Additional Two-Band Module 40-20 meters (parts kit for 80 meter conversion) KNB1 Noise Blanker $360.00 plus actual shipping from 20109 -- From the desk of Dwight ai4ii ___ 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
Fwd: [Elecraft] Antenna Analyzer
I'm selling my MFJ-259B I want to buy a Palstar ZM-30... look at www.palstar.com. 73 Le 05-11-13 à 19:02, Kurt Loken a écrit : Hello All, I've decided that before I get too carried away with antenna experiments (mag loops, etc.), it would probably be a good idea to get an antenna analyzer. Anyone have a favorite they would like to recommend? I'm leaning toward the Micro908 from the American QRP Club. Anyone want to talk me into an MFJ or another brand? Too bad Elecraft doesn't offer one. I would love to see them do for antenna analyzers what they did for antenna tuners with the T1. Regard, Kurt - ae6uj __ Yahoo! Mail - PC Magazine Editors' Choice 2005 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 = /¯\/¯\/¯\/¯\/¯\/¯\ JEAN-FRANCOIS MENARD V A 2 V Y Z [EMAIL PROTECTED] \_/\_/\_/\_/\_/\_/ FISTS #11896 Elecraft K2 #4130 Elecraft KX1 #999 http://homepage.mac.com/jfmenard = = /¯\/¯\/¯\/¯\/¯\/¯\ JEAN-FRANCOIS MENARD V A 2 V Y Z [EMAIL PROTECTED] \_/\_/\_/\_/\_/\_/ FISTS #11896 Elecraft K2 #4130 Elecraft KX1 #999 http://homepage.mac.com/jfmenard = ___ 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: Competition for Elecraft???
What is a Sienna??? I did a Google search and all I could find is its a Toyota??? Puzzled!! Jerry - NR5A - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Cc: Sent: Sunday, November 13, 2005 2:13 PM Subject: Re: [Elecraft] Re: Competition for Elecraft??? In a message dated 11/13/05 11:30:41 AM Eastern Standard Time, [EMAIL PROTECTED] writes: It just seems, in the performance for dollar arena, if I have $3000 to spend, why would I buy the Sienna over the Ten-Tec Orion? Because: - you can work on a Sienna - Sienna has some features Orion doesn't - some folks with enough $$ will have *both* rigs... Or even two K2/100s w/ KAT100s, if I want the whole build-it experience? Because they're not the same. And it may not be about performance-per-dollar as much as about performance-no-matter-what-the-cost It's hard to perceive what niche the Sienna is targeting. Agreed. It's definitely not the same niche as the K2, seeing as how a fully-loaded K2-100 is about half the price of a barebones Sienna. Another thought: If a ham homebrews a rig, the entire cost is on him/her. But if a ham homebrews a rig and offers copies of it as a kit, which is the product of a small business, a lot of the cost can be transferred to the business as an expense. Someone who is enterprising enough to design a rig like the Sienna (or the K2) could have the enterprise to make it a business. And we all win. 73 de Jim, N2EY ___ 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] Antenna Analyzer
Hi, If you consider yourself as "lucky" you can try the MFJ - it's a good idea as product but very slopy execution and on the top of everything seems there is no QC at the factory whatsoever - you might get a good unit but you might get pure junk as well! A good choice (and just a bit more expensive) would be Palstar ZM30 - http://www.palstar.com/zm30.php - i think its a much better product then the mfj - well built, upgradeable firmware, VFO, PC interface, etc. Hope this helps! 73s Hello All, I've decided that before I get too carried away with antenna experiments (mag loops, etc.), it would probably be a good idea to get an antenna analyzer. Anyone have a favorite they would like to recommend? I'm leaning toward the Micro908 from the American QRP Club. Anyone want to talk me into an MFJ or another brand? Too bad Elecraft doesn't offer one. I would love to see them do for antenna analyzers what they did for antenna tuners with the T1. Regard, Kurt - ae6uj ___ 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] Antenna Analyzer
Kurt: Depends on what you're trying to do. If all you want is to read SWR without sending out a transmitted signal, the MFJ-207 will do nicely. You can often find them in the $60-70 range on eBay. MFJ makes a very fancy R+JX analyzer. However, it has a reputation for uneven quality and reliability. (In fairness, many Elecraft list members report themselves being quite happy with the fancy MFJs.) My opinion is that in R+JX analyzers, if you're strictly interested in HF, the best value for the money is the Palstar ZM-30 available for $349 from the manufacturer. I own one and I am very happy with it. (Disclaimer: I have no financial interest in Palstar. I'm merely a very happy customer.) 73, Steve AA4AK At 04:02 PM 11/13/2005 -0800, Kurt Loken wrote: Hello All, I've decided that before I get too carried away with antenna experiments (mag loops, etc.), it would probably be a good idea to get an antenna analyzer. Anyone have a favorite they would like to recommend? I'm leaning toward the Micro908 from the American QRP Club. Anyone want to talk me into an MFJ or another brand? Too bad Elecraft doesn't offer one. I would love to see them do for antenna analyzers what they did for antenna tuners with the T1. Regard, Kurt - ae6uj __ Yahoo! Mail - PC Magazine Editors' Choice 2005 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] CW-Pitch 600 Hz or 700 Hz or what?
Good Evening Don, The thoughts that I have had about a variable frequency BFO controlled from the front panel come from the requirement to be able to change the beat note of an incoming signal very quickly, such as one might want to do more than once during a pile up. Under such circumstances there is not the time to run CAL FIL unfortunately. 73, Geoff GM4ESD Don Wilhelm wrote on Sunday November 13, 2005 at 1147 PM I would also like to point out that the process of changing the BFO frequency in CAL FIL is exactly the same as using a variable BFO control (but it only varies while one is setting it). ___ 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] Antenna Analyzer
Hello All, I've decided that before I get too carried away with antenna experiments (mag loops, etc.), it would probably be a good idea to get an antenna analyzer. Anyone have a favorite they would like to recommend? I'm leaning toward the Micro908 from the American QRP Club. Anyone want to talk me into an MFJ or another brand? Too bad Elecraft doesn't offer one. I would love to see them do for antenna analyzers what they did for antenna tuners with the T1. Regard, Kurt - ae6uj __ Yahoo! Mail - PC Magazine Editors' Choice 2005 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] CW-Pitch 600 Hz or 700 Hz or what?
Paul and all, Not that I am advocating it --- but the center of the CW filters is not directly coupled to the sidetone pitch by the K2 firmware, so the CW filters can be centered most anywhere. It is quite possible to peak the CW filters at 1000 Hz (as long as you do not run out of BFO range. HOWEVER, there are 2 problems with that - 1) the sidetone pitch is limited to 800 Hz, and 2) the transmit offset is controlled by the setting of the sidetone pitch, so that has a limit of 800 Hz as well. So if one should center the CW filters on 1000 Hz, you could listen at that frequency, but the sidetone would not be at that pitch (hard to zero beat), and the transmit signal would be at least 200 Hz away from the received signal. I would also like to point out that the process of changing the BFO frequency in CAL FIL is exactly the same as using a variable BFO control (but it only varies while one is setting it). The way I solve the 'wide CW filter lapping over onto the unwanted sideband' problem is to center the next widest filter (FL2, usually 700 or 600 Hz wide) first, and observe the placement of the low frequency slope in Spectrogram (I position the cross-hair cursor there and click it), then I go back and set FL1 to have the same low frequency slope as FL2. It works for me (If you don't understand, I will add more detail). 73, Don W3FPR > -Original Message- > > >> Perhaps the enhancement could be a BFO that is adjusted by a front > >> panel control? > > > > This would be nice, and I presume that you mean that the knob would > > maintain the location of the BFO in relation to the passband along > > with the sidetone pitch. Currently it's possible to adjust the pitch > > from the menu (although this is not a one-knob operation!), but in > > order to keep the selected pitch inside a narrow passband, you need to > > do the CAL FIL procedure. > > > > So the knob that you refer to would have to cause the microprocessor > > to recalculate the VCO offset that is used to place the selected pitch > > at a given location in the filter passband. This is what happens when > > you run CAL FIL. > This is the one feature that I really wish the K2 had. My TS-940 and > 756-ProIII both have this, and I find it very helpful. It's not only > nice to be able to customize the sidetone pitch, but I like to tweak it > easily via a front-panel knob every so often during long operating > periods, like contests - adjusting the sidetone (and zero-beat point) up > or down a little from time to time seems to help minimize ear (or is it > brain?) fatigue. > > /Paul > W3PH > > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
Hi Vic, Paul, Not quite Vic. The BFO knob would control the frequency of a BFO thus establishing the frequency difference between the BFO and a desired signal in the receiver passband, as done in receivers for decades.Its output is fed only to the product detector when in use. So the knob allows you to vary the beat note or pitch. Tweaking the BFO knob would and should not affect the sidetone at all, since sidetone is usually only a transmit aid. Because in the K2's system the sidetone is also used when measuring the frequency of an incoming signal and/or zero beating the K2's Tx with an incoming signal, my early thought is that the BFO knob would control the frequency of a second BFO #2 that is used only during receive, and also provides the means to switch back to the existing BFO #1 if SPOT is to be used. I suggest this second BFO because I don't think that it would be wise to have one BFO hopping frequency when going from Rx to Tx and back. This separate BFO #2 should be capable of being set say +- 1500 Hz from the passband centre frequency, which gives you "Reverse CW" as well. The added BFO #2 is completely divorced from the microprocessor. The existing BFO #1 carries on as usual but is disconnected from the product detector when BFO #2 is in use. BFO #2 would have to be properly shielded, ground fenced, and interface leads filtered. Big question is where to put it? Paul, I think that to be able to tweak the sidetone (monitoring) frequency a separate keyed AF oscillator directly feeding the audio is required because of the existing sidetone's connection with SPOT etc, but I am not at all sure about this. 73, Geoff GM4ESD Vic Rosenthal wrote: This would be nice, and I presume that you mean that the knob would maintain the location of the BFO in relation to the passband along with the sidetone pitch. Currently it's possible to adjust the pitch from the menu (although this is not a one-knob operation!), but in order to keep the selected pitch inside a narrow passband, you need to do the CAL FIL procedure. So the knob that you refer to would have to cause the microprocessor to recalculate the VCO offset that is used to place the selected pitch at a given location in the filter passband. This is what happens when you run CAL FIL. Paul Heller wrote: This is the one feature that I really wish the K2 had. My TS-940 and 756-ProIII both have this, and I find it very helpful. It's not only nice to be able to customize the sidetone pitch, but I like to tweak it easily via a front-panel knob every so often during long operating periods, like contests - adjusting the sidetone (and zero-beat point) up or down a little from time to time seems to help minimize ear (or is it brain?) fatigue. /Paul W3PH ___ 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: Competition for Elecraft???
In a message dated 11/13/05 11:30:41 AM Eastern Standard Time, [EMAIL PROTECTED] writes: > It just seems, in the performance for dollar arena, if I have $3000 > to spend, why would I buy the Sienna over the Ten-Tec Orion? Because: - you can work on a Sienna - Sienna has some features Orion doesn't - some folks with enough $$ will have *both* rigs... Or even > > two K2/100s w/ KAT100s, if I want the whole build-it experience? > Because they're not the same. And it may not be about performance-per-dollar as much as about performance-no-matter-what-the-cost > It's hard to perceive what niche the Sienna is targeting. Agreed. It's definitely not the same niche as the K2, seeing as how a fully-loaded K2-100 is about half the price of a barebones Sienna. Another thought: If a ham homebrews a rig, the entire cost is on him/her. But if a ham homebrews a rig and offers copies of it as a kit, which is the product of a small business, a lot of the cost can be transferred to the business as an expense. Someone who is enterprising enough to design a rig like the Sienna (or the K2) could have the enterprise to make it a business. And we all win. 73 de Jim, N2EY ___ 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: SSB Audio Problems
Confession time - the raspy noise did turn out to be a AC magnetic field problem. I have a 2 foot long fluorescent tube above my desk, about 4 foot away from my K2. That is what was causing the raspy audio. That leaves just one question- when a constant signal is injected into the audio input in SSB mode, surely the output should also be a constant level RF carrier. What I when looking at the RF with a scope, the peak level jumps around by about 10-20% of the average peak level with a random jump a few times a second. On CW the level is rock solid. Is this expected or am I worrying about nothing in particular? It was this behaviour that made me look at pin 6 of U2 on the SSB board since this also seems to jump around once it has slowly reached its final value. 73 Paul M1CNK Paul Wilton wrote: Thanks for all the advice received so far from everyone on the list. A couple of clarifications a) I do not believe I have an A-C field problem. I will double check everything but I didn't have anything within close range. b) I don't also believe I have an RF induced problem since I am using a well shielded dummy load c) Re the power control, the behaviour I am seeing is occurring AFTER I hit the PTT. The output of pin 6, U2 (PWR CTRL) on the SSB board seems to drift upwards from 1 to 5 volts pretty slowly. However, if I turn the power control down, it drops very quickly. Perhaps this is the intended behaviour. d) Annoyingly the raspy CW seems to be intermittent - it has now has stop misbehaving now that I have time to look at it. I intend to listen to the BFO/VFO on another receiver next time it happens. Thanks again for all the advice. Paul M1CNK Message: 19 Date: Sat, 12 Nov 2005 12:59:58 -0800 From: "Ron D'Eau Claire" <[EMAIL PROTECTED]> Subject: RE: [Elecraft] Problems with SSB Audio To: "'Elecraft Discussion List'" Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain;charset="us-ascii" "Raspy" is often the description given a signal from a K2 that is sitting too close to a transformer so the a-c magnetic field modulates the VCO. If you have a power supply, desk lamp with a transformer built in, or any other transformer operated device nearby, try turning it off and see if your signal clears up. If so, there's a mod for the K2 that will dramatically improve its resistance to magnetic field effects. See www.elecraft.com for details. About the power control, are you expecting it to go to work before your transmit? It won't! The power control sets the "requested" output. The actual output doesn't change until you transmit again, and transmit long enough for the power monitor to note the actual output and adjust the circuit to match the "requested" level you set with the POWER control. It's not uncommon for ops to turn on a rig and notice that even though it's been in receive for half an hour, when the hit the key the power stays at zero for the first dash or several dits, depending upon the keying speed. That's because the power control circuits are only then getting some RF to work with to set the actual power output correctly. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
Perhaps the enhancement could be a BFO that is adjusted by a front panel control? This would be nice, and I presume that you mean that the knob would maintain the location of the BFO in relation to the passband along with the sidetone pitch. Currently it's possible to adjust the pitch from the menu (although this is not a one-knob operation!), but in order to keep the selected pitch inside a narrow passband, you need to do the CAL FIL procedure. So the knob that you refer to would have to cause the microprocessor to recalculate the VCO offset that is used to place the selected pitch at a given location in the filter passband. This is what happens when you run CAL FIL. This is the one feature that I really wish the K2 had. My TS-940 and 756-ProIII both have this, and I find it very helpful. It's not only nice to be able to customize the sidetone pitch, but I like to tweak it easily via a front-panel knob every so often during long operating periods, like contests - adjusting the sidetone (and zero-beat point) up or down a little from time to time seems to help minimize ear (or is it brain?) fatigue. If the filters are not set too narrow I find that the RIT does this for me. Larry Ingram AG4NN K2 SN 2529 ___ 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] C78 isnt on Rev "D" boards but now fitted
Hi I have just searched the archives (should have done this first) C78 is not shown on the Rev D RF board, but still needs fitting if you use a 80m Module. It fits next to Q6 on the bottom of the RF board. Anyway its fitted and the radio works very well on that band with about 7 watts max into a matched load. Now I have 80m for the winter. 73 Paul M0BMN ___ 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: [Fwd: Re: [Elecraft] Problems with SSB Audio]
On Nov 12, 2005, at 4:22 PM, Paul Wilton wrote: Thanks for the advice but I don't have RFC15 installed. Mine is an A series K2 and when I did the A to B mods a few years ago, the "do you need RFC15" test proved negative so I didn't install it. I went through this, too, but then when I added the PLL temperature compensation mod, I found it was a necessary change. Otherwise, my rig hand much LESS temperature stability. 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] SSB Audio Problems
Thanks for all the advice received so far from everyone on the list. A couple of clarifications a) I do not believe I have an A-C field problem. I will double check everything but I didn't have anything within close range. b) I don't also believe I have an RF induced problem since I am using a well shielded dummy load c) Re the power control, the behaviour I am seeing is occurring AFTER I hit the PTT. The output of pin 6, U2 (PWR CTRL) on the SSB board seems to drift upwards from 1 to 5 volts pretty slowly. However, if I turn the power control down, it drops very quickly. Perhaps this is the intended behaviour. d) Annoyingly the raspy CW seems to be intermittent - it has now has stop misbehaving now that I have time to look at it. I intend to listen to the BFO/VFO on another receiver next time it happens. Thanks again for all the advice. Paul M1CNK Message: 19 Date: Sat, 12 Nov 2005 12:59:58 -0800 From: "Ron D'Eau Claire" <[EMAIL PROTECTED]> Subject: RE: [Elecraft] Problems with SSB Audio To: "'Elecraft Discussion List'" Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" "Raspy" is often the description given a signal from a K2 that is sitting too close to a transformer so the a-c magnetic field modulates the VCO. If you have a power supply, desk lamp with a transformer built in, or any other transformer operated device nearby, try turning it off and see if your signal clears up. If so, there's a mod for the K2 that will dramatically improve its resistance to magnetic field effects. See www.elecraft.com for details. About the power control, are you expecting it to go to work before your transmit? It won't! The power control sets the "requested" output. The actual output doesn't change until you transmit again, and transmit long enough for the power monitor to note the actual output and adjust the circuit to match the "requested" level you set with the POWER control. It's not uncommon for ops to turn on a rig and notice that even though it's been in receive for half an hour, when the hit the key the power stays at zero for the first dash or several dits, depending upon the keying speed. That's because the power control circuits are only then getting some RF to work with to set the actual power output correctly. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
Perhaps the enhancement could be a BFO that is adjusted by a front panel control? This would be nice, and I presume that you mean that the knob would maintain the location of the BFO in relation to the passband along with the sidetone pitch. Currently it's possible to adjust the pitch from the menu (although this is not a one-knob operation!), but in order to keep the selected pitch inside a narrow passband, you need to do the CAL FIL procedure. So the knob that you refer to would have to cause the microprocessor to recalculate the VCO offset that is used to place the selected pitch at a given location in the filter passband. This is what happens when you run CAL FIL. This is the one feature that I really wish the K2 had. My TS-940 and 756-ProIII both have this, and I find it very helpful. It's not only nice to be able to customize the sidetone pitch, but I like to tweak it easily via a front-panel knob every so often during long operating periods, like contests - adjusting the sidetone (and zero-beat point) up or down a little from time to time seems to help minimize ear (or is it brain?) fatigue. /Paul W3PH -- Paul Heller [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] K1 change of bands to 2 band card Where is C78
Hi Just converting a 2 band card to have 80/40m and all going well, just cant find where c78 is on the RF board, The instructions say Fit the 10uf C78 on the RF Board. Install c78 on the bottom of the RF board as shown by it component outline. I have a rev D board and can not see c78 anywhere Anyone else done this 80m board and know where to locate the space for c78 Regards Paul M0BMN -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.0/167 - Release Date: 11/11/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 parts count
I couldn't find this anywhere that I looked. Does anybody know off the top of your head the parts count of the KX1 and the various options? I'm considering adding this to my Christmas list. Michael N4NMR -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.0/167 - Release Date: 11/11/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
Geoffrey Mackenzie-Kennedsy wrote: Perhaps the enhancement could be a BFO that is adjusted by a front panel control? Hi Geoff! This would be nice, and I presume that you mean that the knob would maintain the location of the BFO in relation to the passband along with the sidetone pitch. Currently it's possible to adjust the pitch from the menu (although this is not a one-knob operation!), but in order to keep the selected pitch inside a narrow passband, you need to do the CAL FIL procedure. So the knob that you refer to would have to cause the microprocessor to recalculate the VCO offset that is used to place the selected pitch at a given location in the filter passband. This is what happens when you run CAL FIL. I don't think the knob (which I too would like to have) is practical given the K2's architecture. -- 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] KX-1 20m Deaf ?
Others will have more extensive suggestions, but one easy thing to check is whether you have set it to LSB RX, which produces a marked quietness on 20M. As for TX, 3W and 2W sounds about right for 12v. Some folks get a little more, but not much. You will also get more at 13.8v, of course. The lower output on 20M is as designed (which you probably read in the manual about the output filter toroid adjustment). You search the list for KX1 R30 changes for discussion about some KX1s with low drive (e.g. http://www.ac6rm.net/mailarchive/html/elecraft-list/2003-11/msg00944.html) Leigh / WA5ZNU On Sun, 13 Nov 2005 7:57 am, Simon Brown (HB9DRV) wrote: On 30m and 40m all is well - noisy on RX and 3 watts output. On 20m something's not 100% - not so much general noise and only 2 watts output. I have eliminated the ATU from the equation. I'll now read the fine book again but I think I've a small problem somewhere - any suggestions? ___ 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: Competition for Elecraft???
On Nov 2, 2005, at 12:01 PM, Dave G. wrote: I would think the Sienna is aimed at a different market than the traditional Elecraft'er.. possibly the digitally inclined Ham ?? It just seems, in the performance for dollar arena, if I have $3000 to spend, why would I buy the Sienna over the Ten-Tec Orion? Or even two K2/100s w/ KAT100s, if I want the whole build-it experience? It's hard to perceive what niche the Sienna is targeting. We'll have to wait and see how well they do. 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] Update Polar Bear November 2005 Run
Hello, I will be leaving shortly for the Appalachian Trail with Ed, WA3WSJ. We could be on the air as early as 19:00 UTC from Pulpit Rock near Hamburg, PA. Hope to work you on the air. 72 and Thanks, Ron Polityka WB3AAL Polar Bear #2 www.wb3aal.com www.n3epa.org/ ___ 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] KX-1 20m Deaf ?
On 30m and 40m all is well - noisy on RX and 3 watts output. On 20m something's not 100% - not so much general noise and only 2 watts output. I have eliminated the ATU from the equation. I'll now read the fine book again but I think I've a small problem somewhere - any suggestions? Simon Brown --- www.hb9drv.ch www.laax.ch ___ 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] Optivisors
For those who are interested, Optivisors are on sale for $19.95 at the following link: http://www.penntoolco.com/webshare/disp2.cfm 73 de NNØB, --Steve ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
On Nov 12, 2005, at 10:50 AM, Karsten Eppert(DK4AS) wrote: I am in doubt about the optimum CW-pitch. I think I remember from the old days, that the human ear has the best "built in" filter around 1000 Hz, so I thought, CW-crystal filters should have a pitch around 1000 Hz. Many commercial units seem to have 800 Hz, the standard K2 has a suggested pitch of 600 Hz. While a lot of older rigs had an offset for 1000 Hz, most newer rigs are 700-800 Hz. But long-time CW ops typically go for even lower signals, sometimes in the range of 400 Hz. 1. why is that so? 600 Hz is a good compromise between a lower frequency and single- signal reception. Much lower, and you're going to hear signals on the opposite side of the zero-beat. 2. I have set my K2 to 700 Hz but live with the very personal (not supported by spectrogram) impression that the overall selectivity- response is broader than it could be. The adjustable filter has a narrow response, but it's skirts aren't that steep. Is it possible, that the NF-path is optimised for a 600 Hz- response? If so, I would go through the entire re-alignement procedure and reset everything to 600 Hz. Or is it all stupid personal impression? The response would be equally as broad at 600 Hz as at 700 Hz. I'd leave it. 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] FS: Unbuilt KAF-2 Audio Filter Kit
For Sale: Elecraft KAF-2 audio filter and real time clock kit, with original docs. In the bag, it's all there. $60 shipped. PayPal, check, MO OK. Alan, N3BJ Bent Mountain, VA -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.0/167 - Release Date: 11/11/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ARRL November Sweepstakes CW
On Nov 7, 2005, at 3:52 PM, Craig Rairdin wrote: Actually I was daydreaming about the opposite and was wondering if anyone is working on this: There's no reason a program couldn't be written to automate the entire contesting process. The computer could work the radio, answer calls, send replies, and keep its own log. A control op would have to be present, and we'd need an operating class for "fully automated". It's called TACO (for Totally Automated Contest Operation). While much has been written about it, including some interesting articles in the National Contest Journal (NCJ) about 10 years ago, achieving any sort of competitive level of operation has yet to happen. There's no need for a separate operating class yet, and human operators have little to fear at the moment from hordes of robotic operations. Besides, why let a computer have all the fun? 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] CW-Pitch 600 Hz or 700 Hz or what?
I suggest you all try finding a copy of RadCom from a few months ago. There was some very interesting research into the human ears response at various frequencies relating to intelegibility of CW signals. And the human ear has much more dynamic range in the 400 to 800 Hz area and thus that is why many operators use that range and it's becoming more and more a standard. Gregg R. Lengling, W9DHI, Un-Retired K2/100 SN 3075 http://www.milwaukeehdtv.org - Original Message - From: "Chuck Guenther" <[EMAIL PROTECTED]> To: Sent: Sunday, November 13, 2005 7:12 AM Subject: Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what? This subject has been discussed on the TenTec reflector, too. I tend to agree with K2VCO's ideas concerning the ear's ability to discern slight differences in pitch better at low frequencies. Bill Tippett, W4ZV, really got my attention when he divulged that he uses very low pitches (below 300 Hz) to copy weak signal DX. (Bill is one of the best in the world.) Ever since I learned that, I've set my Omni 6 as low as it would go (400 Hz). What's the range on the K2? 73, Chuck NI0C ___ 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] Solar Controller
Hi I have been supplying a Solar Charge Controller Kit for several years. This controller will keep a SLA or LA 12 volt battery charged from solar panels of 3 to about 150 watts. Batteries of 2 amp hour to 110 amp hour have been used with these controllers. I have a new batch of circuit boards that have just arrived. The kit is $30 check or money order and includes all the parts and documentation required to build the controller, less a box to mount it into. Below is a FAQ about the controller. I also still have a small quantity of the low power controller. This controller will handle up to 1.5 amps or about 20 watts. This version will power a KX1, K1 or QRP K2. The price for this version is $16 order from: Don Brown KD5NDB 19132 Falls Creek Drive Flint, Texas 75762 The price includes US postage Thanks Don Solar Controller FAQ: What is it and what does it do? This is a small 2x3 circuit board that allows you to connect a solar panel to a 12 volt sealed lead acid or lead acid battery to keep it charged. The kit comes with instructions, application notes and all parts required to build the controller. The included circuit board is FR4 fiberglass with silk screen and solder mask. The kit does not include a box as most people build it into their battery box. How much power can it handle? The controller uses a 45 amp power fet to switch the solar panel on and off. The current that the controller can handle is limited by the shottkey blocking diodes. I use two of them in parallel rated at 8 amps each so 12-15 amps is the maximum safe charging current. This equates to about a 150 to 200 watt panel What size battery will work with the controller? You can use almost any size battery with the controller although for best results the battery should be sized to the solar panel you are going to use. A rule of thumb is about 2 watts per amp hour has worked well for me although "your mileage may vary". For the K2's 2.9 amp hour internal battery a 5-10 watt panel would keep you on the air. For a K2/100 running 70-100 watts a 90-110 amp hour battery and 80-150 watts of solar panels would work. I have used 2 35 watt panels and a 80 watt panel in parallel for 150 watts into a 110 amp hour sla battery. Can I charge the K2 internal battery with the solar panel and controller? Yes the internal battery can be charged as long as the charge controller is connected directly to the battery through a properly sized fuse. You cannot connect the controller to the normal K2 power connector. You will need to supply a connector on the K2 to connect the charge controller or build the controller into the K2 lid and install a connector for the solar panel. Will it work with other types of batteries like NiCad's or NiMH? No it is designed to work only with 12 volt Lead Acid or Sealed Lead Acid (gel cell) batteries Is there a 6 volt version? Yes the instructions explain how to change the controller to 6 volts. I will supply the parts on request for 6 volts. How does it compare with the MicroM+? My controller functions exactly the same as the MicroM+ although I use a different IC and different circuit design. My controller is much simpler and includes a circuit to turn off the charge indicator LED when the solar panel is not outputting enough voltage to charge the battery. My controller will handle more current than the MicroM+ and because of the precision voltage reference in the IC it does not have or require any adjustments. Does the controller generate any RF noise? No this a purely analog switch circuit. It does not have any switching power supplies that generate RF noise How much does it cost? $30 check or money order. Sorry no credit cards or paypal Thanks Don Brown KD5NDB 19132 Falls Creek Drive Flint, Texas 75762 ___ 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] ARRL November Sweepstakes CW
On Nov 7, 2005, at 11:19 AM, [EMAIL PROTECTED] wrote: I am a newcomer to all of this, and I am wondering if there is any place left in contesting for those of us who choose not to have a computer send code or receive code--ie just used for logging. I am working on getting my speed up, but I couldn't participate due to my inability to copy the high speed CW used by what I assume are mostly computers sending code. Am i off- base here? I do enjoy the QRP contests I have entered since these seem to use "manually" generated exchanges at slower speeds (20 - 25 WPM). Thanks for any advice... A couple of things here. First, congratulations for joining the contesting community. Contesting is a lot of fun, although it does take practice and experience to become proficient. Second, virtually NO ONE uses a computer to receive code in a contest. Send, yes, receive, no. The extremely good operators have no problem copying 25-40 wpm code in their head. Third, one way to operate a contest like SS when there are lots of QRQ signals on the air is to find a strong station and listen to him over and over, pick out his callsign letter by letter, then the exchange until you have just about everything. Then call him. When he replies, you'll already have most of the content for the exchange. This works in every contest except the Sprint. Forth, contest exchanges at 20-25 wpm are nothing to be ashamed of. I often run with my computer set at 24-26 wpm, since this is where I am comfortable copying responses. My paddles are set to about 20-22, since I can't physically send faster without making lots of errors. If you want to work exchanges at slower speeds, get on and call CQ at the speed you are comfortable, especially higher in the band. If calling CQ doesn't work, you can call the QRQ ops and say PSE QRS. Most will oblige. Personally, I call many ops in contests, but the super QRQ ops going 40+ wpm, I just tune by. I'm not there yet. Keep practicing! 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] CW-Pitch 600 Hz or 700 Hz or what?
This subject has been discussed on the TenTec reflector, too. I tend to agree with K2VCO's ideas concerning the ear's ability to discern slight differences in pitch better at low frequencies. Bill Tippett, W4ZV, really got my attention when he divulged that he uses very low pitches (below 300 Hz) to copy weak signal DX. (Bill is one of the best in the world.) Ever since I learned that, I've set my Omni 6 as low as it would go (400 Hz). What's the range on the K2? 73, Chuck NI0C ___ 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: How many Elecrafts are in Germany?
Hi Karsten, if you collect a list ...you can put my call on it ( very satisfied Elecraft OP :-) ) DL2HRF K1 # 1434 73 de Tom, Elecraft CC # 016 >Is there a way to find out the names/e-mail-adresses of >elecraft-builders in Germany? >I find it hard to work 100 elecraft-stations distributed all over the >world. May be easier to run a german/elecrafters-party in order to >collect points for the diplome. >I would be prepared to start an e-mail list. >73 >Karsten ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: KBT-1
I have for sale a new in box KBT-1 kit. That is the internal battery option for the K1, of course. I have opened the box and inventoried the parts, but otherwise the kit is unbuilt. $35 postpaid (continental US only). Postal money orders work best for me. If interested, please contact me off the net by e-mail. I ordered this kit along with the other options for my recently completed K1. But now I feel that I don't really need it, since I also have a KX1 with an internal battery which I take with me when I go someplace. (The whole station is packed in a small camcorder case, and has already been portable VE3.) If nobdy wants the kit in the next day or so, I will build it and install it in my K1. By the way, I love the K1. Last night I worked CO8LY and F5SSR on 30 with it, running 5 watts. I am new to QRP, so that amazed me. Antenna is a Par End-Fedz at 30 ft. 73, John, W2GW K2/100 #4970 - KAT100 KX1 #1258 K1 #2105 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CW-Pitch 600 Hz or 700 Hz or what?
On November 13, 2005 at 02:54 am, Darrell VA7TO - VE7CLA wrote: I too prefer a higher pitched tone. I guess that is because I learned the code with a 1000 Hz tone or perhaps too many years of 1004 Hz test tones at the telco. Too bad the K2 will only go up to 800 Hz. Perhaps Eric and Wayne, you might consider adding this to the wish list of feature enhancements? Perhaps the enhancement could be a BFO that is adjusted by a front panel control? An old fashioned method of control perhaps, but it provides the opportunity to change the pitch instantly to suit the occasion without fiddling with menus etc., or retuning the receiver. When attempting to copy a signal that is at antenna noise level (no QRN) I prefer a pitch of 300-400 Hz. If there is storm static QRN, whatever pitch results in best copy - could be up to 1500Hz or thereabouts. During "normal" operation, 550 - 600Hz which can be changed at any time to avoid fatigue. "Reverse CW" can be thrown in for free! 73, Geoff GM4ESD ___ 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] Not Again! (was KX1 Ideas)
So the K1 / T1 / Buddipole will be shipped on Monday. Next week we are getting a cold front, should be -15C up in the mountains. From a radio aspect will be very interesting to see how the Buddipole + K1 work out on 20m as I should have a good groundplane (1 metre of snow). Sure beats writing software :-) Simon "don't need the K2 this month" Brown --- www.hb9drv.ch www.laax.ch - Original Message - From: "Simon Brown (HB9DRV)" <[EMAIL PROTECTED]> Seems this time I purchased the K1-4, KNB1, K1BKLTKIT-X, T1-K and Buddipole. ___ 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
