[Elecraft] K3: FM filter
Hi all, Can someone tell me what the bandwidth of the FM filter is? I have fitted it but I cannot see any information regarding bandwidth. Thanks Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ 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] ESD-Matte
Wo bekommt man im deutschsprachigen Raum eine günstige und gute ESD-Matte plus Armgelenksband-oder lohnt sich der Selbstbau? 73,Chris-OE5CSP -- View this message in context: http://www.nabble.com/ESD-Matte-tp16467379p16467379.html Sent from the Elecraft mailing list archive at Nabble.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] ESD-Matte
Computer Werkzeuge, z.b. http://www.brack.ch/aspx/Shop/lager.aspx?ArtID=61180 Simon Brown, HB9DRV -- From: OE5CSP-Chris [EMAIL PROTECTED] Wo bekommt man im deutschsprachigen Raum eine günstige und gute ESD-Matte plus Armgelenksband-oder lohnt sich der Selbstbau? ___ 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: Would not it be nice...
To answer your last question, PA3AKE has published 3rd Order Dynamic Range data with both signals in the passband of the roofing filter of a homebrewed receiver's front end. You might like to look at his website. In my experience when working 40m SSB DX zero beat with a BC station's carrier, maintaining a large in- passband receiver dynamic range helps a lot. 73, Geoff GM4ESD Arie Kleingeld PA3A wrote on Wednesday, April 02, 2008 11:44 PM Would not it be nice... if someone measured the IMD dynamic range of the K3 with the interfering signals placed within the bandwidth of the first IF (roofing) filter? Or has that one already been published somewhere? Or is that impossible to measure? Arie PA3A ___ 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] Assembly mat
Tony Morgan wrote: If you use a bright lamp over the table as I do, the glare from the foil would not be good. As has been said before, if you are going to spent the money on a nice Elecraft kit, spend a few extra bucks and get a anti static mat. Just my opinion. Not to mention that the conductivity of the aluminum foil is so high as to actually damage the ESD sensitive parts you are trying to protect. You want a conductive mat, just not so conductive so as to discharge the charges too rapidly. Conductive ESD mats are designed with just enough conductivity to slowly discharge the static buildup without causing such high discharge currents as to damage the solid state device. The mat is then connected via a several megohm resistor to the electrical ground of the room. Wrist straps of similar conductive properties are used to ensure a common potential between your body and the bench mat. A floor mat of a similar material, and grounded as the bench mat would be (or a conductive floor surface), and either conductive shoes and socks, or special inserts with heel and body skin contact are often used where movement is necessary in a lab and a wrist strap is too restrictive. Special air ionizers, often generating the ionized stream via a radioactive polonium pellet are often used for extra protection at workstations. I think the original reference to aluminum foil was a joke, wasn't it? It was highlighted. Not everyone may have understood. Additionally, the conductive surface of the foil would be a shock hazard, also something undesirable on a workbench. Rick Kunath, k9ao ___ 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] Crimped vs soldering
Regardless of our personal experiences, the fact remains that soldering a crimped connection is unacceptable in Mil-Spec work...There are good reasons, not the least of which is premature failure away from the connector, back inside the wire's insulation where the rigid solder wick condition ends and morphs to a flexible condition...Military black boxes get a lot of maintenance and cables are being disconnected and re-connected often resulting in a lot of flexing...Exposed areas of stranded wire between the wire's insulation and the connector are also unacceptable...It can lead to a condition called bird-caging...I don't think bird-caging needs explanation...As far as strain relief is concerned, I haven't seen any strain relief on APP connectors, which is where this discussion started... Jerry, wa2dkg___ 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] Ahhhh! Wrong list! (QSK - Why don't you like it?)
Sorry guys, I've posted this to the wrong list (sheepish expression goes here). - Keith N1AS - - K2 5411.ssb.100 - - K3 Wave 3 - ___ 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: FM filter
Can someone tell me what the bandwidth of the FM filter is? 13 kHz 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
Re: [Elecraft] K3: FM filter
Lyle Johnson wrote: Can someone tell me what the bandwidth of the FM filter is? 13 kHz 73, Lyle KK7P Thanks Lyle 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ 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: Would not it be nice...
For a graphic representation of Joe's point, check out the BDR section of my LP-PAN web page at http://www.telepostinc.com/LP-PAN.html I ran some tests of the K3/LP-PAN combo for very close in interference. The phase noise issue pointed out by Joe can be seen quite easily in the panoramic display. As you slide the interfering signal toward the wanted one, the noise sidebands of the interfering signal become higher than the noise floor, and eventually louder than the desired signal. In my test, I slid a very clean S9+63dB signal from an analog HP generator toward a 3uV desired signal, and the noise sidebands were just audible at a bit over 3 kHz spacing. With the interfering signal at S9+18dB, the sidebands could be heard at about 800 Hz spacing. With this strength of interference, the interfering signal had to be within about 200 Hz to wipe out the desired signal. This would be worse with a synthesized rig as the interference, of course, or a signal with modulation (even CW). At this signal level (just below the HAGC threshold), the K3's DSP dynamic range is high enough that AGC could be disabled, avoiding pumping. It's a moot point, however, since you're not likely to find interference this clean in practice, unless your neighbor has a xtal controlled QRP rig ;-) 73, Larry N8LP -- Message: 49 Date: Wed, 2 Apr 2008 22:29:33 -0400 From: Joe Subich, W4TV [EMAIL PROTECTED] Subject: RE: [Elecraft] K3: Would not it be nice... To: 'Arie Kleingeld PA3A' [EMAIL PROTECTED], elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=US-ASCII Nobody makes 500 Hz IMD dynamic range measurements - they are meaningless but that is what it would take to get both interfering signals inside the passband of the 2.7 KHz roofing filter. Sherwood has made some very close in blocking dynamic range measurements but I do not know if he has released that data. The essence of the private e-mail is that even at 1 KHz the limiting factor in the K3 is not blocking but phase noise performance of the K3 and/or the interfering signal. The final analysis is that key clicks and phase noise from signals less than 1 KHz way would be more of a problem than either IMD or blocking. 73, ... Joe, W4TV ___ 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] Crimped vs soldering
Jerry, What you say is true, but the conditions expected for Mil-Spec equipment are not typical for the average hamshack - the wires are not subject to excessive vibration and flexing and are not handled on a daily basis. As a result, I regard soldering APP connectors for ham station use a suitable and durable solution. For use in a mobile environment, vibration is a concern, so frequent (maybe monthly) examination of soldered wires may be in order, or bite the bullet and buy, beg or borrow a GOOD crimping tool and crimp the connections for mobile use. For those concerned about strain relief, slip a 2 inch length of heat shrink over the wires before installing the APP housings and shrink it up close to the housing after assembly. Even a single layer of heat shrink will afford a lot of protection for the wires. 73, Don W3FPR Jeremiah McCarthy wrote: Regardless of our personal experiences, the fact remains that soldering a crimped connection is unacceptable in Mil-Spec work...There are good reasons, not the least of which is premature failure away from the connector, back inside the wire's insulation where the rigid solder wick condition ends and morphs to a flexible condition...Military black boxes get a lot of maintenance and cables are being disconnected and re-connected often resulting in a lot of flexing...Exposed areas of stranded wire between the wire's insulation and the connector are also unacceptable...It can lead to a condition called bird-caging...I don't think bird-caging needs explanation...As far as strain relief is concerned, I haven't seen any strain relief on APP connectors, which is where this discussion started... ___ 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] Another K3 in France
For those worrying that no K3s have shipped recently, my K3 #627 arrived on March 31st, ordered on Sept 8th (notification of 3/18 for shippment in 2-3 weeks!) The 1.8kHz filter is backordered, yet the website says nothing about it. It is expected to ship in a month's time according to elecraft. 73's Nick ___ 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: Re: [Elecraft] Crimped vs soldering
Here's my bottom line: If a crimped cable was offerred as an accessory with my K3 for a couple of extra $ I would have added it to the long list of other accessories. I have made or supervised being made or contracted to be made millions of crimped and soldered wires and I know what I prefer. I would put my $ where my mouth is. Your mileage may vary. David G3UNA - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam ___ 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 to serial
I am wondering which way to plan for K3 updates -- USB port or serial port on your computer. I am concerned about XP or Vista software being up to date for supporting the USB port. Maybe someone with more experience can interpret the cryptic notes on the K3 software page related ot prolific. See the big red IMPORTANT and the related URL for prolific. Ken K5WK ___ 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] KUSB to serial
Ken, Use the real serial port if you can. They are always more reliable than the adapters. If you must use the adapter, make certain you have the latest drivers. 73, Don W3FPR Ken wrote: I am wondering which way to plan for K3 updates -- USB port or serial port on your computer. I am concerned about XP or Vista software being up to date for supporting the USB port. Maybe someone with more experience can interpret the cryptic notes on the K3 software page related ot prolific. See the big red IMPORTANT and the related URL for prolific. Ken K5WK ___ 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 to Serial
Bill, I realized all of that, but my real concern is the note that said Prolific is not going to supply Vista drivers - contact your cable manufacturer. It makes me nervour about using KUSB cables. Sometimes progress makes things too complex, and the oldfashioned way is best. Ken ___ 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]KUSB to serial
It says in the prolific website that Prolific will not be providing Vista drivers for end users. Please contact the vendor ... etc. I want to use KUSB with a Vista pc. What do I do Elecraft ! 73 Bryan GM3AKF ___ 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: Would not it be nice...
For a graphic representation of Joe's point, check out the BDR section of my LP-PAN web page at http://www.telepostinc.com/LP-PAN.html The 5 KHz and 2 KHz examples with LP-Pan and PowerSDR are worst case for the K3 and would be equivalent to using the FM filter for all modes. Even at 2 KHz, the interfering carrier would be nearly 30 dB down the skirt of the 2.8 KHz/8 pole filter and any IMD between it and another signal even farther away would be down significantly (assuming the CW signal is centered). Phase noise, key clicks and transmitted IMD from other stations will be the limiting factor for receiver performance in the K3. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps Sent: Thursday, April 03, 2008 9:15 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3: Would not it be nice... For a graphic representation of Joe's point, check out the BDR section of my LP-PAN web page at http://www.telepostinc.com/LP-PAN.html I ran some tests of the K3/LP-PAN combo for very close in interference. The phase noise issue pointed out by Joe can be seen quite easily in the panoramic display. As you slide the interfering signal toward the wanted one, the noise sidebands of the interfering signal become higher than the noise floor, and eventually louder than the desired signal. In my test, I slid a very clean S9+63dB signal from an analog HP generator toward a 3uV desired signal, and the noise sidebands were just audible at a bit over 3 kHz spacing. With the interfering signal at S9+18dB, the sidebands could be heard at about 800 Hz spacing. With this strength of interference, the interfering signal had to be within about 200 Hz to wipe out the desired signal. This would be worse with a synthesized rig as the interference, of course, or a signal with modulation (even CW). At this signal level (just below the HAGC threshold), the K3's DSP dynamic range is high enough that AGC could be disabled, avoiding pumping. It's a moot point, however, since you're not likely to find interference this clean in practice, unless your neighbor has a xtal controlled QRP rig ;-) 73, Larry N8LP -- Message: 49 Date: Wed, 2 Apr 2008 22:29:33 -0400 From: Joe Subich, W4TV [EMAIL PROTECTED] Subject: RE: [Elecraft] K3: Would not it be nice... To: 'Arie Kleingeld PA3A' [EMAIL PROTECTED], elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=US-ASCII Nobody makes 500 Hz IMD dynamic range measurements - they are meaningless but that is what it would take to get both interfering signals inside the passband of the 2.7 KHz roofing filter. Sherwood has made some very close in blocking dynamic range measurements but I do not know if he has released that data. The essence of the private e-mail is that even at 1 KHz the limiting factor in the K3 is not blocking but phase noise performance of the K3 and/or the interfering signal. The final analysis is that key clicks and phase noise from signals less than 1 KHz way would be more of a problem than either IMD or blocking. 73, ... Joe, W4TV ___ 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]KUSB to serial
I got my Vista drivers from Microsoft Update when I first plugged in the KUSB. Here's what I put into K3 Utility Help on this subject: Microsoft Windows Vista users can obtain an acceptable device driver from Microsoft's Windows Update service when the KUSB is first plugged in. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bryan Sent: Thursday, April 03, 2008 8:13 AM To: Elecraft Subject: Re:[elecraft]KUSB to serial It says in the prolific website that Prolific will not be providing Vista drivers for end users. Please contact the vendor ... etc. I want to use KUSB with a Vista pc. What do I do Elecraft ! 73 Bryan GM3AKF ___ 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] KUSB to Serial
Ken, The way I read the Vista warningyou are on your own. Vista has so many problems that I cannot tell you what kind of headache it is for IT people. I know many IT shops are just not going to Vista although many home computers are beings shipped with Vista. I don't know if that is because the Gorilla says so, or what. I am using the USB adapter from Elecraft with XP and have no trouble communicating with the rig. Always works through the update and through other programs...N1MM Logger...HRD...etc. I would also advise you that going serial to serial is a good bet as Don W. expressed here on the reflector. But with Vistait is a crap shoot from my experience with the product. I will not go to it until there is at least Service Pack 2 or 3. YMMV 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 divine? ___ 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]KUSB to serial
Bryan, If that PC is a desktop, purchase a real serial port card and install it. Much more reliable than any adapter. I know that does not answer the Vista driver situation - someone else will have to answer that question, but if that is the true situation, I would guess that drivers will eventually be available for download from the Elecraft website - it seems like that is the only way the problem could be resolved. 73, Don W3FPR Bryan wrote: It says in the prolific website that Prolific will not be providing Vista drivers for end users. Please contact the vendor ... etc. I want to use KUSB with a Vista pc. What do I do Elecraft ! 73 Bryan GM3AKF ___ 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]KUSB
Don, My Vista pc is a desktop, however the KUSB works fine on my other pc which is using XP. My concern is that the instructions with the KUSB includes Vista as being ok. 73 Bryan GM3AKF ___ 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] ESD-Matte
Wolfgang Warmbier Systeme gegen Elektrostatik Phone: 07731-8688-0 Untere Gießwiesen 21 Fax: 07731-8688-30 78247 Hilzingen, Germany http://www.warmbier.com/deutsch.htm These folks in England probably speak German: Diese Völker sprechen vermutlich Deutsches: http://www.cobaeurope.com/index.asp Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of OE5CSP-Chris Sent: Thursday, April 03, 2008 3:24 AM To: elecraft@mailman.qth.net Subject: [Elecraft] ESD-Matte Wo bekommt man im deutschsprachigen Raum eine günstige und gute ESD-Matte plus Armgelenksband-oder lohnt sich der Selbstbau? 73,Chris-OE5CSP -- ___ 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]KUSB
You might consider a PCI card with a couple of RS-232 ports and a serial cable for your desktop machine. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bryan Sent: Thursday, April 03, 2008 8:36 AM To: Elecraft Subject: Re:[Elecraft]KUSB Don, My Vista pc is a desktop, however the KUSB works fine on my other pc which is using XP. My concern is that the instructions with the KUSB includes Vista as being ok. 73 Bryan GM3AKF ___ 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: Re: [Elecraft] K3 AM operation with FM roofing filter?
There seems to be some confusion whether one can use the FM filter to receive AM with the *current* firmware or if this is a future enhancement. I need to clarify this as I am in the process of ordering more filters. Knut - AB2TC Greg - AB7R wrote: I've not put this on the FAQ yet, but yes you can use the FM filter for AM. But be advised it will degrade performance some with reguard to selectivity. In transmit, the DSP will work with the filter and determine the TX BW. The exact specs on this are not yet available. 73 Greg AB7R snip -- View this message in context: http://www.nabble.com/Re%3A-Re%3A-K3-AM-operation-with-%22FM%22-roofing-filter--tp14077480p16467773.html Sent from the Elecraft mailing list archive at Nabble.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]KUSB
Dick, I am sure you are right about the PCI card. But you did say earlier that you used the KUSB ok with Vista. I am not able to get to the situation where a driver is available via Windows Update 73 Bryan GM3AKF ___ 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] Crimped vs soldering
Don wrote: slip a 2 inch length of heat shrink over the wires before installing the APP housings and shrink it up close to the housing after assembly. Even a single layer of heat shrink will afford a lot of protection for the wires. Excellent suggestion. The objective is to make sure the flexing that does occur isn't concentrated on a small area of exposed strands between the insulation and the connector, whatever form of attachment to the connector is used. Shrink tubing that keeps that area at least as stiff as the rest of the wire will avoid that. 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] KUSB to Serial
If your machine has a PCMCIA slot, you might consider skipping the adapter entirely and using a PCMCIA card that provides a standard RS232 serial interface. If course, many desktop machines have expansion slots available where you can add an internal RS232 port card. I guess I got lucky with a $30 USB/RS232 adapter from Radio Shack (RS 26-183). It works on all the machines I've tried with no problems, but I'm running Windows Xp on them. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Sent: Thursday, April 03, 2008 8:12 AM To: Elecraft@mailman.qth.net Subject: [Elecraft] KUSB to Serial Bill, I realized all of that, but my real concern is the note that said Prolific is not going to supply Vista drivers - contact your cable manufacturer. It makes me nervour about using KUSB cables. Sometimes progress makes things too complex, and the oldfashioned way is best. Ken ___ 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]KUSB
Got an extra one here in PCI express with (2) serial ports software. $20 shipped conus. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dick Dievendorff Sent: Thursday, April 03, 2008 11:50 AM To: 'Bryan'; 'Elecraft' Subject: RE: [Elecraft]KUSB You might consider a PCI card with a couple of RS-232 ports and a serial cable for your desktop machine. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bryan Sent: Thursday, April 03, 2008 8:36 AM To: Elecraft Subject: Re:[Elecraft]KUSB Don, My Vista pc is a desktop, however the KUSB works fine on my other pc which is using XP. My concern is that the instructions with the KUSB includes Vista as being ok. 73 Bryan GM3AKF ___ 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] KUSB to Serial
It might be helpful to know what computer folks are using when they indicate problems with a KUSB or other USB to serial device. I have several of these devices, and some work with some computers but not with others. I think it is as much as problem with specific computers as it is with the operating system. I have mentioned this before, but I seem to have more luck with a couple of Belkin USB/serial adapters than with most others. The two I have are models F5U109 and F5U409. I think at least one of these was intended for use with PDA's, but it sure works on my laptops. Furthermore, Belkin does have updated drivers for Vista for these two adapters. A couple of my laptops (mine and my wife's) are newer, and have Vista, much to my chagrine. But I use mine to update my K3, and it has no problem doing so. I had lots of trouble with a couple of older Sony computers when I needed to connect serial devices to them. The Belkins worked, but others didn't. Also, a Toshiba laptop which I replaced last year with a new HP, balked a good bit on setting up the one or more of the other adapters. But the Belkins again seemed to work best. One thing you must make sure of is that your computer is looking at the right comm port. That was an almost constant problem when I tried hooking up an Icom PC1000. If you go to Control Panel, and then to Device Manager, you can view the setup your computer has made for the USB adapter. See what port the adapter is looking at, and what the K3 is wanting. You can probably change your computer's selection to match if it isn't matched already. I may be wrong, but I think ports 3 or 4 are your best bets typically. You can also adjust the transfer speed at this point. Also if, when you go to Device Manager and check your USB adapter settings, you see a little yellow flag over the device listing, you probably have a driver issue, and the device is not properly installed. That's a bigger problem, and you will undoubtedly need to either try reinstalling, or find better drivers. Dave W7AQK - Original Message - From: Lee Buller [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, April 03, 2008 8:28 AM Subject: Re: [Elecraft] KUSB to Serial Ken, The way I read the Vista warningyou are on your own. Vista has so many problems that I cannot tell you what kind of headache it is for IT people. I know many IT shops are just not going to Vista although many home computers are beings shipped with Vista. I don't know if that is because the Gorilla says so, or what. I am using the USB adapter from Elecraft with XP and have no trouble communicating with the rig. Always works through the update and through other programs...N1MM Logger...HRD...etc. I would also advise you that going serial to serial is a good bet as Don W. expressed here on the reflector. But with Vistait is a crap shoot from my experience with the product. I will not go to it until there is at least Service Pack 2 or 3. YMMV 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 divine? ___ 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] Crimped vs soldering
Both Powerwerx (www.powerwerx.com) and Quicksilver Radio (www.qsradio.com) offer 5 or 6 foot power cables with APP on one end and 1/4 ring terminals on the other for those who do not wish to assemble their own. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron D'Eau Claire Sent: Thursday, April 03, 2008 11:52 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] Crimped vs soldering Don wrote: slip a 2 inch length of heat shrink over the wires before installing the APP housings and shrink it up close to the housing after assembly. Even a single layer of heat shrink will afford a lot of protection for the wires. Excellent suggestion. The objective is to make sure the flexing that does occur isn't concentrated on a small area of exposed strands between the insulation and the connector, whatever form of attachment to the connector is used. Shrink tubing that keeps that area at least as stiff as the rest of the wire will avoid that. 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] K3: Would not it be nice...
The example wasn't meant to be K3 specific, but rather to graphically show the concept of why transmitted phase noise is such an important factor with close in interference. The overall BW in these examples is actually 192 kHz! Larry N8LP Joe Subich, W4TV wrote: For a graphic representation of Joe's point, check out the BDR section of my LP-PAN web page at http://www.telepostinc.com/LP-PAN.html The 5 KHz and 2 KHz examples with LP-Pan and PowerSDR are worst case for the K3 and would be equivalent to using the FM filter for all modes. Even at 2 KHz, the interfering carrier would be nearly 30 dB down the skirt of the 2.8 KHz/8 pole filter and any IMD between it and another signal even farther away would be down significantly (assuming the CW signal is centered). Phase noise, key clicks and transmitted IMD from other stations will be the limiting factor for receiver performance in the K3. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Phipps Sent: Thursday, April 03, 2008 9:15 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3: Would not it be nice... For a graphic representation of Joe's point, check out the BDR section of my LP-PAN web page at http://www.telepostinc.com/LP-PAN.html I ran some tests of the K3/LP-PAN combo for very close in interference. The phase noise issue pointed out by Joe can be seen quite easily in the panoramic display. As you slide the interfering signal toward the wanted one, the noise sidebands of the interfering signal become higher than the noise floor, and eventually louder than the desired signal. In my test, I slid a very clean S9+63dB signal from an analog HP generator toward a 3uV desired signal, and the noise sidebands were just audible at a bit over 3 kHz spacing. With the interfering signal at S9+18dB, the sidebands could be heard at about 800 Hz spacing. With this strength of interference, the interfering signal had to be within about 200 Hz to wipe out the desired signal. This would be worse with a synthesized rig as the interference, of course, or a signal with modulation (even CW). At this signal level (just below the HAGC threshold), the K3's DSP dynamic range is high enough that AGC could be disabled, avoiding pumping. It's a moot point, however, since you're not likely to find interference this clean in practice, unless your neighbor has a xtal controlled QRP rig ;-) 73, Larry N8LP -- Message: 49 Date: Wed, 2 Apr 2008 22:29:33 -0400 From: Joe Subich, W4TV [EMAIL PROTECTED] Subject: RE: [Elecraft] K3: Would not it be nice... To: 'Arie Kleingeld PA3A' [EMAIL PROTECTED], elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=US-ASCII Nobody makes 500 Hz IMD dynamic range measurements - they are meaningless but that is what it would take to get both interfering signals inside the passband of the 2.7 KHz roofing filter. Sherwood has made some very close in blocking dynamic range measurements but I do not know if he has released that data. The essence of the private e-mail is that even at 1 KHz the limiting factor in the K3 is not blocking but phase noise performance of the K3 and/or the interfering signal. The final analysis is that key clicks and phase noise from signals less than 1 KHz way would be more of a problem than either IMD or blocking. 73, ... Joe, W4TV ___ 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 CONFIG LIN OUT
Anybody know just what the voltage range can be put out at the line out jack? Since it is pre-AGC it isn't a constant level output but instead varies with signal strength. CONFIG LIN OUT apparently adjusts the level. I want to directly drive a TNC which has an unbalanced 10K ohm input impedance which can be directly connected to a wide variety of receiver audio output terminals including ... line 600ohms. The maximum input should not exceed +1.7 V rms.. I suspect the K3's level may be too low at any setting since it is meant for sound card input. My guess is that the TNC would be happy with 0.5 volts. There doesn't appear to be any constant level AF output which some rigs had to drive TNC's. K3KO -- View this message in context: http://www.nabble.com/K3-CONFIG-LIN-OUT-tp16467958p16467958.html Sent from the Elecraft mailing list archive at Nabble.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 CONFIG LIN OUT
Anybody know just what the voltage range can be put out at the line out jack? Since it is pre-AGC it isn't a constant level output but instead varies with signal strength. CONFIG LIN OUT apparently adjusts the level. It is in fact post-AGC. CONFIG LIN OUT adjusts the gain of the post-AGC amplifier that drives LINE OUT. Most claims of constant level output are actually fixed gain after AGC, same as the K3. Your specific case of 1.7 V RMS is 4.8V p-p. The driver for the LINE OUT output operates from a 3.3V supply, so it probably will not overdrive your external device in any case. 73, Lyle KK7P (You can measure the output with a multimeter in your particular setup for your particular AGC and other settings.) ___ 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] 2.8 Khz vs 2.7 Khz roof
I am looking for something somewhere that will help me decide between the two. Ken ___ 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] 2.8 Khz vs 2.7 Khz roof
How about this: All the K3's sent to VP6DX had the 8 pole filters. I presume that was for a reason. I On Thu, Apr 3, 2008 at 2:39 PM, Ken [EMAIL PROTECTED] wrote: I am looking for something somewhere that will help me decide between the two. Ken ___ 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] 2.8 Khz vs 2.7 Khz roof
Ken, Examine your operating desires for the correct answer for you. If most of your operation is casual, the 5 pole filters will do just fine - remember that the DSP provides the ultimate selectivity. If you are heavy into serious contesting or DX chasing and other situations where you will be operating in a crowded band with nearby strong signals, then you may see a slight benefit with the 8 pole filters. Eric Swartz has a nice writeup on the Elecraft website that may provide some additional information for your decision making. 73, Don W3FPR Ken wrote: I am looking for something somewhere that will help me decide between the two. Ken ___ 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] 2.8 Khz vs 2.7 Khz roof
-Original Message- All the K3's sent to VP6DX had the 8 pole filters. I presume that was for a reason. - Yes, but the reason may have had as much to do with marketing, wanting to make SURE the rig puts it's best foot forward, as it did with actually needing 8 poles. I think this one is a rather easy choice. If you're not sure, go with the stock 5 pole filter. It's free, after all. Use the rig and see how it does. If you're still wanting more, get the 8 pole filter. Or, get the 8 pole filter right off the bat. Put both in the rig and A/B switch between them. Then report back here as to what difference you heard. - Keith N1AS - - K2 5411.ssb.100 - - K3 TBD - ___ 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] 2.8 Khz vs 2.7 Khz roof
S Sacco wrote: How about this: All the K3's sent to VP6DX had the 8 pole filters. I presume that was for a reason. Yes, the 8 pole ones were sourced from INRAD and were available off the shelf. The 2.7's weren't ready yet! -- 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] 2.8 Khz vs 2.7 Khz roof
Actually, I believe the reason was AVAILABILITY! When the VP6DX K3's shipped, I don't believe the 2.7kHz filters were available yet! And I don't believe the 500 Hz 5-pole's were available at that time either... 73, Tom N0SS At 14:46 04/03/2008, Darwin, Keith wrote: -Original Message- All the K3's sent to VP6DX had the 8 pole filters. I presume that was for a reason. - Yes, but the reason may have had as much to do with marketing, wanting to make SURE the rig puts it's best foot forward, as it did with actually needing 8 poles. I think this one is a rather easy choice. If you're not sure, go with the stock 5 pole filter. It's free, after all. Use the rig and see how it does. If you're still wanting more, get the 8 pole filter. Or, get the 8 pole filter right off the bat. Put both in the rig and A/B switch between them. Then report back here as to what difference you heard. - Keith N1AS - - K2 5411.ssb.100 - - K3 TBD - ___ 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] 2.8 Khz vs 2.7 Khz roof
K5WK: I am looking for something somewhere that will help me decide between the two. Since you're a previous Orion II owner I assume you know all of its filters are 4-pole. As W2VJN ofInrad and Rob Sherwood have previously written, shape factor has *very little* impact on performance as roofing filters beyond about -30 dB on the skirts. The following dats is from Elecraft: http://www.zerobeat.net/mediawiki/index.php/K3_Roofing_Filters 1. 6 dB bandwidth and 6/60 dB shape factor: Filter BW(-6dB) Shape Factor 27002910*2.9 28002888 1.6 *The 2.7k may have wider BW than the 2.8k. This is Elecraft's measurement and my 2.7k closely agrees with it. 2. IMD performance: Filter20kHz 10kHz 5kHz 2kHz 2.7 kHz, 5 pole 100+ 98 92n/a 2.8 kHz, 8 pole 100+ 100 93n/a (You'll never notice 1-2 dB of IMD performance) Price: 2.7k included, 2.8k $125. If you order a 2.8k in place of the standard 2.7k in your initial order, the incremental cost is $95. If you are seriously interested in better filtering for SSB, I would spend my $125 for a 1.8k (or possibly even the rumored 1.5k) in addition to the basic 2.7k, rather than using it for a 2.8k. 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] K3, assembly, use of DeoxIT/DeoxIT Gold
There was a LOT of discussion on this list for this very topic last year. Run a search on the archives to uncover everyone's thoughts. 73, Mike KW1ND ___ 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] Crimped connectors
I worked on the F-106 for 4 years and never saw a connection on a connector that wasn't soldered. John[K7SVV] - Original Message - From: Jeremiah McCarthy [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, April 02, 2008 8:47 AM Subject: [Elecraft] Crimped connectors Only to make a point, not an argument...I worked for 30 years at Grumman and we built most of the Navy's aircraft, which are subject to a highly corrosive environment...All connections, thousands of them, were crimped using Stakons, the trade name for those little red, blue, and yellow terminal lugs...AMP was the manufacturer of both the tools and the terminals...Soldering was grounds for a crab, or rejection of the connection...Solder can wick up the wire under the insulation causing a rigid condition subject to vibration fatigue...Also, the heat from soldering distorts the red, blue, or yellow insulation sleeve on the terminal lug compromising it's integrity...Of course there were a few connectors that had pins that had to be soldered, but not many...The pins in most of the connectors by Cannon, Amphenol, Deutch, etc. were crimped... Rivet and skin corrosion on the outside of the aircraft is much more of a problem than corrosion of crimped wire connections... Jerry, wa2dkg___ 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. Version: 7.5.519 / Virus Database: 269.22.5/1357 - Release Date: 4/3/2008 10:48 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] N2CQ QRP Contest Calendar: Apr 5 - May 4, 2008
~ N2CQ QRP CONTEST CALENDAR April 5 - May 4, 2008 ~ LZOCC 40m CW Sprint ... QRP Category Apr 5, z to 0400z Rules: http://www.linkove.com/lzocc40/ ~ QRP ARCI Spring QSO Party (CW) ..QRP Contest!!! Apr 5, 1200z to Apr 6, 2359z Rules: http://www.qrparci.org ~ SP DX Contest (CW/SSB) ... QRP Category Apr 5, 1500z to Apr 6, 1500z Rules: http://www.spdxcontest.info/reg/spdxc_g.pdf ~ EA RTTY Contest Apr 5, 1600z to Apr 6, 1600z Rules: http://www.sk3bg.se/contest/pdf/eartty.pdf ~ Missouri QSO Party (ALL) Apr 5, 1800z to Apr 6, 0500z Apr 6, 1800z to Apr 6, 2400z Rules: http://www.qsl.net/w0ma/contests.htm ~ Adventure Radio Spartan Sprint (CW) ... QRP Event! EDT: Apr 7, 9 PM to 11 PM (First Monday each month) UTC: Apr 8, 0100z to 0300z Info: http://arsqrp.pbwiki.com:80/Spartan+Sprints ~ UBA Spring Sprint (80m SSB) ... QRP Entries Noted Apr 13, 0600z to 1000z Rules: http://www.uba.be/hf_contests/rules_en.html# ~ SKCC Sprint (Straight Key CW) ... QRP Awards Apr 9, z to 0200z Rules: http://skccgroup.com/sprint/sprint-rules.htm ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EDT: Apr 8, 8:30 PM to 10:30 PM UTC: Apr 9, 0030Z to 0230Z Rules: http://www.arm-tek.net/~yoel/contests.html ~ PSK Flavors Contest ... QRP Category Apr 12, 12:00 to 18:00 YOUR LOCAL TIME Rules: http://www.podxs070.com/ ~ Georgia QSO Party (CW/SSB) ... QRP Category Apr 12, 1800z to Apr 13, 0359z Apr 13, 1400z to Apr 13, 2359z Rules: http://gqp.contesting.com ~ SKCC Weekend Sprint (Straight Key CW) ... QRP Category Apr 13, z to z Rules: http://www.iglou.com/sonic//skcc/wknd-sprint-rules.html ~ The HOLYLAND DX CONTEST (CW/SSB) ... QRP Category Apr 19, z to 2359z Rules: http://www.iarc.org/ ~ TARA Skirmish Digital Prefix Contest ... QRP Category Apr 19, z to 2359z Rules: http://www.n2ty.org/seasons/tara_seasons.html ~ Michigan QSO Party (CW/SSB) ...QRP Category Apr 19, 1600z to Apr 20, 0400z Rules: http://www.miqp.org/ ~ EA-QRP Contest (CW) ... QRP Contest! Apr 19, 1700z to 2000z (10, 15 20 Mtrs) Apr 19, 2000z to 2300z (80 Mtrs) Apr 20, 0700z to 1100z (40 Mtrs) Apr 20, 1100z to 1300z (10, 15 20 Mtrs) Rules: http://www.eaqrp.com/concurso/test_eaqrp_cw-en.htm ~ Ontario QSO Party (CW/SSB) ... QRP Category Apr 19, 1800z to Apr 20, 0500z Apr 20, 1200z to Apr 20, 1800z Rules: http://cco.ve3xd.com/oqp/ ~ RUN FOR THE BACON (CW) *** QRP CONTEST *** EDT: Apr 20, 9 PM to 11 PM UTC: Apr 21, 0100z 0300z Rules: http://fpqrp.net:80/fpqrprun.php ~ MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest *** Apr 26, 1800z to 2200z Rules: http://w2agn.net/mqfdsprint.html ~ SP DX RTTY Contest Apr 26, 1200z to Apr 27, 1200z Rules: http://www.pkrvg.org/zbior.html ~ Florida QSO Party (CW/Phone) ...QRP Category Apr 26, 1600z to Apr 27, 0159z and Apr 27, 1200z to 2159z Rules: http://www.floridaqsoparty.org/ ~ Nebraska QSO Party (CW/SSB/Digital) ... QRP Category Apr 26, 1700z to Apr 27, 1700z Rules: http://www.qsl.net/hdxa/neqso/index.htm ~ FISTS/EUCW CW QRS Contest (CW) ... QRP Category Apr 28, 0001z to May 2, 2359z Rules: http://www.agcw.org/?Contests ~ Helvetia Contest (CW/SSB) (Swiss) ...QRP Category Apr 26, 1300z to Apr 27, 1259z Rules: http://www.uska.ch/e_index.htm ~ QRP To The Field (CW) ...QRP Contest!! Apr 26, 1500z to Apr 27,0300z Rules: http://www.zianet.com/QRP ~ QRP BARBERSHOP QUARTET CONTEST (CW QRP)... QRP Contest! Apr 30, 9PM
RE: [Elecraft] 2.8 Khz vs 2.7 Khz roof
Ken, I am looking for something somewhere that will help me decide between the two. I went back and forth several times before I finally decided to go with the 8-pole filters. 1) The 2.8 Khz filter is actually a bit tighter than the 2.7 Khz filter. As W4ZV writes: 1. 6 dB bandwidth and 6/60 dB shape factor: Filter BW(-6dB) Shape Factor 27002910*2.9 28002888 1.6 *The 2.7k may have wider BW than the 2.8k. This is Elecraft's measurement and my 2.7k closely agrees with it. 2) If you extend the analysis to the skirts, the 2.8 KHz filter shows some significant bandwidth advantage at -30 dB. Using a simple linear skirt approach I first used for comparing the CW filters we see: 2700 2800 - - 6dB 2910 2888 Hz -60dB 8329 4620 Hz slope50.18 16.03 Hz/dB -10dB 3311 3016 Hz -20dB 4315 3337 Hz -30dB 5319 3657 Hz -40dB 6322 3978 Hz -50dB 7326 4299 Hz While the shape/width of the roofing filter is not critical, the added selectivity can't help but be some benefit when the strong station fires up 2.5 KHz away. 3) Eric indicates that the 8-pole filters are tested to a higher standard than the 5-pole filters. They will have less filter IMD than the 5-pole filters. For me, the little things added up. I decided better safe than sorry was the best course of action ... I ordered the 8 pole filter up front rather than possibly regret not doing so every time I used the radio. However, the second receiver will have the 2.7 KHz filter. 73, ... Joe, W4TV ___ 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 SSB Net April 3, noisey but fun tonight
We had 6 check-ins. KE4WY is a new one in my log -- Jim in Kentucky on K3 #367. But the highlight of my evening was Budd W3FF mobile, riding a RECUMBENT TRICYCLE sporting an FT-857 and a vertical buddipole. Budd is a friend of Eric at Elecraft. He had just visited and tried a K3. He had so much enthusiasm and WOW in giving his impression of the K3 that he was overloading his little FT and proceeded to whack his antenna into a tree. Look him up on QRZ if you don't believe it. So there IS some fun on the Elecraft SSB Net. Y'all join in some time, hear? Windy KM5Q ___ 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 L33
Hi I have a question about L33 in the BFO circuit on the K2 I am building. The wire it is wound with appears to have a coating of some kind on it. Should this coating be removed before soldering it to the resistor that holds it in place? And if so, how can it be removed without destroying it. I tried scraping the coating off but that didn't work. The wire broke. Instead of taking off a couple ot turns and using it anyway, I ordered a new one. I sent an email to support at Elecraft about this, but they don't answer emails anymore. Thanks N5SM ___ 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] Got my Katiegram
My Katiegram came today. Invoice number 50970. I almost deleted it. At first I couldn't figure out exactly what it was. Then there was this thought: naw, couldn't be my K3...not this soon. I just kept starring at the subject line like I couldn't believe what I was seeing. Says it will be shipped in 2 to 3 weeks. I ordered my K3 on October 13th with the 50% deposit , but a month or so later I paid the balance in full. It's been a long wait, but these next couple of weeks are going to seem like an eternity. Stan W5EWA Houston, TX ___ 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] Got my Katiegram
Congrats Stan, stitting here now listening to my K3 and in the blink of an eye, you may be doing the same while reading somebody else's Katiegram!! You are still pretty early in the K3 process, K3 will make you look smart to the bandwagon jumpers. ;-) [Elecraft] Got my Katiegram srife at swbell.net srife at swbell.net Thu Apr 3 22:00:58 EST 2008 My Katiegram came today. Invoice number 50970. I almost deleted it. At first I couldn't figure out exactly what it was. Then there was this hought: naw, couldn't be my K3...not this soon. Stan W5EWA Houston, TX ___ 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: KUSB to serial
Ken, If you are concerned about USB to serial adapter compatibility why not just order a real serial interface card for your computer? I did this for my Windows XP Dell machine. I found that the cost of a serial I/F card was cheaper than a USB adapter and any compatibility worries vanish. Mike Scott AE6WA Tarzana, CA K3/100 SN508 Date: Thu, 3 Apr 2008 08:38:46 -0600 From: Ken [EMAIL PROTECTED] Subject: [Elecraft] KUSB to serial To: Elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=Windows-1252 I am wondering which way to plan for K3 updates -- USB port or serial port on your computer. I am concerned about XP or Vista software being up to date for supporting the USB port. Maybe someone with more experience can interpret the cryptic notes on the K3 software page related ot prolific. See the big red IMPORTANT and the related URL for prolific. Ken K5WK ___ 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 L33
Scott, I just installed L33 in a K2 last night. The wire should not require stripping in any manner. Be careful and don't flex it too much it is very fragile. Follow the procedure in the assembly manual closely. The hardest part is after the coil is in place on the rubber spacer, and the small 5.1 MOhm resistor is formed over the coil and soldered in place. The next operation requires looping each of the two wires around the ends of the resistor wire near the solder pad. It is best to use a tweezer to gently slip the wire ends around the resistor lead on each side and if you can, wrap it once more, then trim excess wire and solder the connection. Examine the solder joint with a magnifier and you should see a smooth well bonded solder joint. BTW Elecraft support is very good about answering e-mails, usually same day unless its a weekend or late at night. The list is a good backup in any case. Good luck es 73 de Al WA6VNN **Planning your summer road trip? Check out AOL Travel Guides. (http://travel.aol.com/travel-guide/united-states?ncid=aoltrv000316) ___ 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
