Re: [Elecraft] K3 RFI in transmitted audio
On Mon, 13 Sep 2010 01:26:43 -0400, Joe Subich, W4TV wrote: Let's say that you bond all equipment to your MAGIC SINGLE POINT, and it takes 3 ft of wire to get there. If two pieces of equipment are only three inches apart and you bond directly between them, CHASSIS to CHASSIS, the wire might be only 6 inches long. That's fine with two pieces of equipment that are physically close to each other. However, if one has several pieces stretched along a long bench with a power supply at one end, bonding box to box could conceivably cause common mode currents to flow through all of the boxes causing who knows what kind of abnormal operation - and pin 1 problems! By definition, a common mode current is one that flows on all conductors of a SIGNAL cable, usually as a result of a potential difference between the equipment at either end, or as a result of antenna action. The bonding I've described tends to strongly reduce common mode current to very small values, both by diverting it away from signal cables, and by reducing the potential between one chassis and another to a very small value. Further, I cannot conceive of ANY current THROUGH equipment if what is being bonded is the CHASSIS of one piece of equipment to the CHASSIS of another! Providing a low resistance bond between interconnected equipment also puts a band-aid on low frequency pin 1 problems, because most current that flows between equipment takes the lower resistance chassis-to-chassis bonding path rather than the higher resistance path via cable shields and onto the signal return bus. But that's only a band aid. Address the issues by properly connecting the cable shields to the chassis and bonding the the signal returns to the circuit common properly (e.g. removing things like RF chokes between signal returns and the chassis). Often what you suggest is not possible, Joe, because of the way equipment is built. As a manufacturer, I'm sure you've run into this with your own products. Remember how pin 1 problems are typically created -- connectors are mounted to a PC board, the board is stuffed into a box, and the connector never touches the chassis. Instead, shield current must wander around the PC board to get to the chassis, which is required by NEC to be bonded to ground. Sometimes it's possible to bond those connectors (I managed to do that with some Ten Tec gear and a Time Wave DSP unit), but most equipment is built so that you cannot fix pin 1 problems without doing major surgery to the gear. There is another fundamental principle at work here -- the engineers who design a given piece of equipment and do the manufacturing engineering to put it in production must verify that the equipment is stable in all possible configurations. One of the things that can strongly affect that is internal bonding of signal commons (what some folks mistakenly call grounding). When you CHANGE that by fixing a pin 1 problem, you had best be prepared to go through that stability checkout. Again, a can of worms best left un-opened. Pin 1 problems should be fixed at the DESIGN and MFG stage. When encountered in the field, the best approach is a well thought-out band-aid. Either choke the current, break the path of the current, or divert the current. Ferrite chokes kill the current by inserting a high common mode impedance in series, bonding diverts the current away from the pin 1 problem, and opening the shield of BALANCED wiring at one end breaks the path. None of those measures have are likely to affect stability of the equipment, they're all simple, and inexpensive. BTW -- these are not only my own judgements, but also those of the VERY sharp engineering minds who have written AES EMC Standards. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] two 2m-Transverters for diversity reception on 2m
How can I tell the K3 which of two 2m-transverters (XV1: K144XV-internal and XV2: external transverter connected through KXV3A RX-ant IN) to address? When I enable both transverters in CONFIG (XV1 ON = YES and XV2 ON = YES) the K3 will always adress XV2 and does not leave me a chance to choose which transverter to use with either RX input. This would be useful for diversity reception with XV1 connected to the MAIN rx and XV2 conntected to the SUB rx. Has anybody succeeded to use two separate 2m Transverters with both RX paths for diversity reception - and how? Any suggestions welcome! 73 Joe DF1AL -- View this message in context: http://elecraft.365791.n2.nabble.com/two-2m-Transverters-for-diversity-reception-on-2m-tp5525124p5525124.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] two 2m-Transverters for diversity reception on 2m
Joe - It might be useful to upgrade to the latest K3 v4.10 beta software. It provides some changes to the way the transverters are addressed. * K144XV BAND-DATA OUTPUT ADDRESS RANGE INCREASED: Originally, CONFIG:XVn ADR was always set to INT TRN1 to enable the K144XV. This set all band data outputs on the ACC jack to 0. Now, XVn ADR has of INT TRN0 to INT TRN9 for the K144XV. Band-data outputs are set accordingly. This may be useful when the K144XV is used as an IF for higher-band external transverters. (If you have a K144XV, the original INT TRN1 will now be INT TRN0 in the menu. This is the new recommended setting if you're not using external transverters in conjunction with the K144XV.) 73 de David G4DMP In a recent message, DF1AL go...@web.de wrote ... How can I tell the K3 which of two 2m-transverters (XV1: K144XV-internal and XV2: external transverter connected through KXV3A RX-ant IN) to address? When I enable both transverters in CONFIG (XV1 ON = YES and XV2 ON = YES) the K3 will always adress XV2 and does not leave me a chance to choose which transverter to use with either RX input. This would be useful for diversity reception with XV1 connected to the MAIN rx and XV2 conntected to the SUB rx. Has anybody succeeded to use two separate 2m Transverters with both RX paths for diversity reception - and how? -- David G4DMP Leeds, England, UK -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] two 2m-Transverters for diversity reception on 2m
Joe I'm not sure if you will get true diversity reception unless the transverters are identical and have frequency locked oscillators. I stand corrected if there are experts on this forum ! Regards John G4ZTR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of DF1AL Sent: 13 September 2010 07:28 To: elecraft@mailman.qth.net Subject: [Elecraft] two 2m-Transverters for diversity reception on 2m How can I tell the K3 which of two 2m-transverters (XV1: K144XV-internal and XV2: external transverter connected through KXV3A RX-ant IN) to address? When I enable both transverters in CONFIG (XV1 ON = YES and XV2 ON = YES) the K3 will always adress XV2 and does not leave me a chance to choose which transverter to use with either RX input. This would be useful for diversity reception with XV1 connected to the MAIN rx and XV2 conntected to the SUB rx. Has anybody succeeded to use two separate 2m Transverters with both RX paths for diversity reception - and how? Any suggestions welcome! 73 Joe DF1AL -- View this message in context: http://elecraft.365791.n2.nabble.com/two-2m-Transverters-for-diversity-recep tion-on-2m-tp5525124p5525124.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Information from ESET NOD32 Antivirus, version of virus signature database 5445 (20100912) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5445 (20100912) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KRX3 band pass filters needed?
VE3WDM wrote: Good evening all, just ordered the KRX3 for the K3. One thing I was going to use the KRX3 for was to hook my attic dipole to the KRX3 as it is a very quite receiving antenna. The main receiver was going out to my vertical. Do I need band pass filters not sure about this? The KRX3 has a full set of ham band band pass filters, so you don't need the KBPF option unless you plan to use diversity outside the ham bands. You'll also need to duplicate (including any offsets for 5-pole filters) the exact filter setup you have in your Main receiver. CAUTION: Once you use true diversity, you'll never be happy with any rig without it! 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/KRX3-band-pass-filters-needed-tp5524523p5525903.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] ...clarification required... PWR Setting on K3
Referring to my K3/100 Ser. No. 4103: What, exactly, is the number (in watts) that is displayed when the front panel PWR knob is set to a particular number? Is it actually a measured power out (and with what accuracy)? Is it something set and calibrated in the firmware? Is there any way to get at settings between about 8.5 Watts and about 13, which is where there is a discontinuity as one advances the knob (short of putting in a pad and adjusting the attenuation on the output manually)? The numbers on the display around 10 watts do not agree very well with my Bird 43 and a 25 watt slug. Which of these should I believe, and again with what accuracy? [I know the Bird is only accurate to within ca 5% of fs.] Please note that I am differentiating between accuracy and precision here. John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] ...clarification required... PWR Setting on K3
G'morning John: The number displayed when one adjusts the PWR knob is a COMMANDED power level. If the K3 has been calibrated using the procedures in the manual, then the power out will be what is commanded, assuming a 50 ohm resistive load. My K3 commands powers between 8.5 and about 13 with no problem. Six meters used to not be able to do that, but a recent firmware upgrade solved that problem on 6 meters. 73, Ken K3IU K3 #202 ~ On 9/13/2010 8:51 AM, John Ragle wrote: Referring to my K3/100 Ser. No. 4103: What, exactly, is the number (in watts) that is displayed when the front panel PWR knob is set to a particular number? Is it actually a measured power out (and with what accuracy)? Is it something set and calibrated in the firmware? Is there any way to get at settings between about 8.5 Watts and about 13, which is where there is a discontinuity as one advances the knob (short of putting in a pad and adjusting the attenuation on the output manually)? The numbers on the display around 10 watts do not agree very well with my Bird 43 and a 25 watt slug. Which of these should I believe, and again with what accuracy? [I know the Bird is only accurate to within ca 5% of fs.] Please note that I am differentiating between accuracy and precision here. John Ragle -- W1ZI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RFI in transmitted audio
Joe, For elimination of DC and AF problems, no ground is required. The real requirement is that all equipment be at the same potential. Connecting the chassis of all equipment together with heavy gauge wire or strapping material will provide that low resistance path. Potential differences of a few millivolts matter here. As Jim has pointed out, divorcing the power supply V- from the power supply chassis (and AC supply neutral) is often needed to solve hum and modulation of the V- line. If we were discussing RF, then your single point ground connected to a low impedance ground for RF would be correct - keep the path to RF Ground the same distance for each piece of equipment. will achieve what is needed for lightning protection. In difficult situations, both may be necessary. DC and audio grounding requirements are different from RF grounding requirements. 73, Don W3FPR On 9/13/2010 1:26 AM, Joe Subich, W4TV wrote: This is a common misconception that results from muddy thinking. It is the big lie, repeated over and over again until somehow everyone believes it. DC and low frequency currents follow Ohm's Law -- that is, the path with the lowest DC resistance. And the proper low impedance ground fits that requirement but the common point must be proper - not just a couple of ground rods. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] ...clarification required... PWR Setting on K3
Presumably you are referring to 50MHz. Yes, upgrade to the latest version 4.10 beta software. This enables the KPA3 to be switched in at 9W on 50MHz. 73 de David G4DMP In message 4c8e1e3d.4080...@crocker.com, John Ragle tpcj1...@crocker.com writes Is there any way to get at settings between about 8.5 Watts and about 13, which is where there is a discontinuity as one advances the knob (short of putting in a pad and adjusting the attenuation on the output manually)? -- David Pratt __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] two 2m-Transverters for diversity reception on 2m
Where is the 4.1 beta? I have looked for it and onbly founbd the 4.05 which i already hve on my K3. ...bc Quoting David Pratt da...@g4dmp.fsnet.co.uk: Joe - It might be useful to upgrade to the latest K3 v4.10 beta software. It provides some changes to the way the transverters are addressed. * K144XV BAND-DATA OUTPUT ADDRESS RANGE INCREASED: Originally, CONFIG:XVn ADR was always set to INT TRN1 to enable the K144XV. This set all band data outputs on the ACC jack to 0. Now, XVn ADR has of INT TRN0 to INT TRN9 for the K144XV. Band-data outputs are set accordingly. This may be useful when the K144XV is used as an IF for higher-band external transverters. (If you have a K144XV, the original INT TRN1 will now be INT TRN0 in the menu. This is the new recommended setting if you're not using external transverters in conjunction with the K144XV.) 73 de David G4DMP In a recent message, DF1AL go...@web.de wrote ... How can I tell the K3 which of two 2m-transverters (XV1: K144XV-internal and XV2: external transverter connected through KXV3A RX-ant IN) to address? When I enable both transverters in CONFIG (XV1 ON = YES and XV2 ON = YES) the K3 will always adress XV2 and does not leave me a chance to choose which transverter to use with either RX input. This would be useful for diversity reception with XV1 connected to the MAIN rx and XV2 conntected to the SUB rx. Has anybody succeeded to use two separate 2m Transverters with both RX paths for diversity reception - and how? -- David G4DMP Leeds, England, UK -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] two 2m-Transverters for diversity reception on 2m
ftp://elecraft.co.uk/K3/firmware/beta/k3fw4r10.zip In message 20100913095834.583764ui77x61...@webmail.widomaker.com, n...@widomaker.com writes Where is the 4.1 beta? I have looked for it and onbly founbd the 4.05 which i already hve on my K3. -- David Pratt __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2: current documentation on remoting KPA100/KAT100?
I know of this one link. http://www.kk7p.com/k2kpa100.html Is this the most current/best guide for remoting the KPA100/KAT100? Are there other guides which offer different/better information? Thanks. -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] two 2m-Transverters for diversity reception on 2m
Sorry, I should have said ftp://elecraft.com/K3/firmware/beta/k3fw4r10.zip In message 3mvuubbj7ijmf...@g4dmp.fsnet.co.uk, David Pratt da...@g4dmp.fsnet.co.uk writes ftp://elecraft.co.uk/K3/firmware/beta/k3fw4r10.zip In message 20100913095834.583764ui77x61...@webmail.widomaker.com, n...@widomaker.com writes Where is the 4.1 beta? I have looked for it and onbly founbd the 4.05 which i already hve on my K3. -- David Pratt __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2: current documentation on remoting KPA100/KAT100?
John, That guide is still good if you read the update notes. However, if you are mounting both the KAT100 and the KPA100 both in the same EC2 enclosure it is much easier. Order the KAT100-2, and you will find it has the 10 pin connector for the KPA100 control cable as well as the DC and antenna connectors - so all you need to do is plug the KPA100 to those connectors. When you make up the control cable indicated in the KAT100 manual, that one cable is then sufficient to bring the K2 control signals to the KPA100 and KAT100 combo, plug it either into the KAT100 or the KPA100. You will need a BNC to BNC cable between the K2 and the KAT100 AUX RF jack, and you will need a short PL259 to PL259 coax to connect from the KPA100 to KAT100 input. The KIO2 or a suitable substitute is needed in the K2. 73, Don W3FPR On 9/13/2010 10:08 AM, John Shadle wrote: I know of this one link. http://www.kk7p.com/k2kpa100.html Is this the most current/best guide for remoting the KPA100/KAT100? Are there other guides which offer different/better information? Thanks. -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2: current documentation on remoting KPA100/KAT100?
Yes, Don, that's what I'm planning on doing. I have a KPA100 already built, and have the EC2 with the larger front panel for the KAT100, which I'm planning to build the KAT100 into. So, basically I just need to install a BNC cable in the rear of the KAT100-2 and drop in the KPA100 into the KAT100-2? Are there other resistors, diodes, etc. that need to be changed in the KAT100 or the KPA100 (or the K2 RF board) to make this work? Or is it really that simple--adding a BNC connector and plugging the KAT100 into the KPA100? -john W4PAH On Mon, Sep 13, 2010 at 10:33 AM, Don Wilhelm w3...@embarqmail.com wrote: John, That guide is still good if you read the update notes. However, if you are mounting both the KAT100 and the KPA100 both in the same EC2 enclosure it is much easier. Order the KAT100-2, and you will find it has the 10 pin connector for the KPA100 control cable as well as the DC and antenna connectors - so all you need to do is plug the KPA100 to those connectors. When you make up the control cable indicated in the KAT100 manual, that one cable is then sufficient to bring the K2 control signals to the KPA100 and KAT100 combo, plug it either into the KAT100 or the KPA100. You will need a BNC to BNC cable between the K2 and the KAT100 AUX RF jack, and you will need a short PL259 to PL259 coax to connect from the KPA100 to KAT100 input. The KIO2 or a suitable substitute is needed in the K2. 73, Don W3FPR On 9/13/2010 10:08 AM, John Shadle wrote: I know of this one link. http://www.kk7p.com/k2kpa100.html Is this the most current/best guide for remoting the KPA100/KAT100? Are there other guides which offer different/better information? Thanks. -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2: current documentation on remoting KPA100/KAT100?
Also, I just found this conversation from a while back. You reply with a very similar note, Don. ;-) http://elecraft.365791.n2.nabble.com/K2-REMOTE-KPA100-KAT100-td469168.html And, there are some folks who chime in with their own experiences doing this. It does sound like a very easy job! I was working on my KSB2 last night and hope to finish it this week, then to stuff all of the modules in the K2 and prepare for filter alignment and final check-out. This multi-year project is about to be complete! -john W4PAH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RFI in transmitted audio
On Mon, 13 Sep 2010 09:40:00 -0400, Don Wilhelm wrote: If we were discussing RF, then your single point ground connected to a low impedance ground for RF would be correct - keep the path to RF Ground the same distance for each piece of equipment. will achieve what is needed for lightning protection. I disagree with that concept as well. The notion that a separate wire is required for each piece of gear to a point that is often at a fair distance from a closely arranged collection of gear in a typical ham shack when that gear is already well bonded together does not make sense. How, for example, do we insure that each wire is the same length, follows the same or a similar path, and thus has the same inductance? There is NO CONFLICT between bonding all equipment chassis together by the shortest practical path, as I've outlined, and making one or more bonds between that equipment and the earth electrode system (ground rods). Indeed, both IEEE Standards on Grounding and most building codes either recommend or require multiple paths to ground for lightning protection. A large part of the thinking behind that is that the inductance is reduced by having multiple wires in parallel. As hams, we tend to think of our antennas as the only source of lightning ingress to our homes, but that is FAR from reality. It's like looking at the circus elephant through a tiny hole in the tent. EVERY CONDUCTOR that enters the house, and every conductor INSIDE the house, is a receiver for energy from lightning. That's why IEEE Standards and nearly all building codes call for ALL non-powered metal to be bonded together, and to one or more earth connections, and for all earth connections to be bonded togther. One other thought on this. In thinking about how all this fuzzy thinking about so-called single point grounding came about, one source of it might be equipment with a pin 1 problem. If, for example, the bonds to the equipment are improperly made to some point OTHER THAN THE CHASSIS, then yes, lightning current WOULD go through equipment if it was daisy-chained. But that's not a GROUNDING problem, it's an EQUIPMENT problem, and it's IMPROPER bonding. The good news is that I don't recall ever seeing ANTENNA connections in ham gear with pin 1 problems (except, perhaps, for an occasional RX antenna). It's only the audio and control wiring, and an occasional IF output. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3
Hello Folks, Just recieved my P3(531) this morning. It was ordered the 2nd of August. Its factory built. Took about ten minutes to set it up and give it a test. Boy! neat.. I was using a lp-pan with the external soundcard. Which was nice. But this is outstanding! Can't say enough about it. Thanks for a great additon to the K3 Elecraft.. Don...w2xb -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-tp5527137p5527137.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] two 2m-Transverters for diversity reception on 2m
John is correct. Diversity receivers require a common LO. This is provided in the K3 with the aux receiver, but adding VHF transverters to both receivers will not add properly if they are running separate LO's. I am in the process of setting up a 2m dual-polarity receiver using two transverters but run with one LO driving both units. I discovered that DEMI is developing a dual-Rx transverter (two Rx antenna ports and IF outputs) that implements this in a single unit - I'm on the short-list to get one when available). Just connecting two separate 2m transverters will not ensure proper phase relationship between the two IF outputs so one could end up with a situation where the two signals null each other. This is analogous to combining two transmit amplifiers. If the outputs are out of phase energy from one will to into the other with disastrous effect. 73, Ed - KL7UW -- Message: 31 Date: Mon, 13 Sep 2010 08:38:06 +0100 From: John Lemay j...@carltonhouse.eclipse.co.uk Subject: Re: [Elecraft] two 2m-Transverters for diversity reception on 2m To: 'DF1AL' go...@web.de, elecraft@mailman.qth.net Message-ID: 197109066c874af98c6fe5c70d844...@g4ztr Content-Type: text/plain; charset=us-ascii Joe I'm not sure if you will get true diversity reception unless the transverters are identical and have frequency locked oscillators. I stand corrected if there are experts on this forum ! Regards John G4ZTR 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-QRT*, 432-100w, 1296-QRT*, 3400-fall 2010 DUBUS Magazine USA Rep dubus...@hotmail.com == *temp __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Price Increase Alert
Just a reminder that some prices may go up tomorrow. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/Price-Increase-Alert-tp5527166p5527166.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RFI in transmitted audio [End of thread]
Jim, Don and Joe, To keep list traffic reasonable, let's take this recurring discussion off list to direct email for now. Once you have all agreed please feel free post the results to the list. Also, there is a lot of past info on this topic that is searchable in the list archives. Also, please keep all discussions civil on, or off, list. 73, Eric WA6HHQ Elecraft List Moderator - On 9/13/2010 9:08 AM, Jim Brown wrote: On Mon, 13 Sep 2010 09:40:00 -0400, Don Wilhelm wrote: If we were discussing RF, then your single point ground connected to a low impedance ground for RF would be correct - keep the path to RF Ground the same distance for each piece of equipment. will achieve what is needed for lightning protection. I disagree with that concept as well. The notion that a separate wire is required for each piece of gear to a point that is often at a fair distance from a closely arranged collection of gear in a typical ham shack when that gear is already well bonded together does not make sense. How, for example, do we insure that each wire is the same length, follows the same or a similar path, and thus has the same inductance? There is NO CONFLICT between bonding all equipment chassis together by the shortest practical path, as I've outlined, and making one or more bonds between that equipment and the earth electrode system (ground rods). Indeed, both IEEE Standards on Grounding and most building codes either recommend or require multiple paths to ground for lightning protection. A large part of the thinking behind that is that the inductance is reduced by having multiple wires in parallel. As hams, we tend to think of our antennas as the only source of lightning ingress to our homes, but that is FAR from reality. It's like looking at the circus elephant through a tiny hole in the tent. EVERY CONDUCTOR that enters the house, and every conductor INSIDE the house, is a receiver for energy from lightning. That's why IEEE Standards and nearly all building codes call for ALL non-powered metal to be bonded together, and to one or more earth connections, and for all earth connections to be bonded togther. One other thought on this. In thinking about how all this fuzzy thinking about so-called single point grounding came about, one source of it might be equipment with a pin 1 problem. If, for example, the bonds to the equipment are improperly made to some point OTHER THAN THE CHASSIS, then yes, lightning current WOULD go through equipment if it was daisy-chained. But that's not a GROUNDING problem, it's an EQUIPMENT problem, and it's IMPROPER bonding. The good news is that I don't recall ever seeing ANTENNA connections in ham gear with pin 1 problems (except, perhaps, for an occasional RX antenna). It's only the audio and control wiring, and an occasional IF output. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] test message
ignore __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] ARRL SW Help
Elecraft will be at the ARRL SW Convention in San Diego, Sept. 17, 18 and 19th. If you would like to volunteer to help out at the booth any of those days or possibly help out with our K3 demonstrations at the Demo Station please let me know. Just email l...@elecraft.com directly, do not reply to the reflector. Wayne and Eric are looking forward to another great show in San Diego- in addition to all the regulars, they will also have the P3 and the KPA500 to demo at our booth. The Demo Station is being set up by Special Events at the convention. Different manufacturers will have the opportunity to demo their radios throughout the weekend. Hope to have another great turnout this year in San Diego. Lisa -- Lisa Jones Elecraft, Inc. (831) 763-4211 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] anyone bored? finish my kit
please reply off list. Would anyone be interested in trying to revive a Ten Tec 1220 2M Kit transceiver for me. Circuit board in bad shape its halfway built but some alignment issues ie voltage doesnt change adjusting L14 coil which I broke again. Dont have the patience to mess with it anymore. w...@gt.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Dual Soundcards
If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them (the same sound card each time) and a different Windows application would always use the other one? And yes, this is relevant to a K3 application I have in mind. Thanks es 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Firmware Beta 4.10
Hi All, I see references on the reflector to a 4.10 Beta but do not see it listed on the Elecraft Firmware page. Is there a K3 4.10 Beta now available? 73 de N1LQ-Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Firmware Beta 4.10
4.10 was a field-test release. I have a few more changes to make, and hope to have a beta release later this week. 73, Wayne N6KR On Sep 13, 2010, at 3:08 PM, David and Dianne on Comcast wrote: Hi All, I see references on the reflector to a 4.10 Beta but do not see it listed on the Elecraft Firmware page. Is there a K3 4.10 Beta now available? 73 de N1LQ-Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Soundcards
On my machine running WinXP Pro, Windoze identifies the two different sound cards separately, and most sound software also has an option somewhere to select the sound device. Only one of my programs doesn't let me choose the device and I can't remember which one that is - I guess it just picks the Windoze default sound device. Two identical cards will probably be listed with the same name twice in sequence in device manager, sound manager etc. One may perhaps have a (2). Otherwise, you will just have to remember which is which. It's good to be able to leave Windoze on the default sound card speakers, and MMTTY/MMVARI etc. using the extra sound card plugged into the K3. This way, I don't transmit You've got mail, or the critical noise when something crashes. And these config settings are saved. 73, Gary ZL2iFB -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert Sent: Tuesday, 14 September 2010 10:01 AM To: Elecraft Reflector Subject: [Elecraft] Dual Soundcards If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them (the same sound card each time) and a different Windows application would always use the other one? And yes, this is relevant to a K3 application I have in mind. Thanks es 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Soundcards
Yes, Windows XP will work with several sound cards. I can't answer for Vista or Win7. ...bc -Original Message- From: David Gilbert [mailto:xda...@cis-broadband.com] Sent: Monday, September 13, 2010 6:01 PM To: Elecraft Reflector Subject: [Elecraft] Dual Soundcards If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them (the same sound card each time) and a different Windows application would always use the other one? And yes, this is relevant to a K3 application I have in mind. Thanks es 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] NAQCC Sprint Wednesday night!
NAQCC Sprint Wednesday night! This coming Wednesday evening will be the monthly NAQCC Sprint for September, 2010. I will refer you to the proper URL: http://home.windstream.net/yoel/sprint201009.html There you will find all the details as to time, frequencies and also a special prize. This month's Special Prize goes to the winner, to be decided by drawing among all who submit a valid log, gets a choice of paddle handles, straight key knobs, and/or K2 knob inserts donated by Gregg WB8LZG. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate (this includes QRO); but you must use QRP power levels to compete for awards. Come join us and have a real good time! 72/73 de Dave VA3RJ NAQCC #0004 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Soundcards
Yes, I agree that Windows will work with multiple sound cards, including virtual ones like Total Recorder. However, let's assume that I have two identical sound cards installed ... same manufacturer, same model number, same drivers, etc. Windows shows both of them with the exact same title in Device Manager, and any particular application will simply show both identical descriptions in their respective drop down setup menus. Is there any way I can separately identify them so that I can connect them to different external hardware and know which is being used for what? Thanks again, Dave AB7E On 9/13/2010 3:18 PM, Bill Conkling wrote: Yes, Windows XP will work with several sound cards. I can't answer for Vista or Win7. ...bc -Original Message- From: David Gilbert [mailto:xda...@cis-broadband.com] Sent: Monday, September 13, 2010 6:01 PM To: Elecraft Reflector Subject: [Elecraft] Dual Soundcards If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them (the same sound card each time) and a different Windows application would always use the other one? And yes, this is relevant to a K3 application I have in mind. Thanks es 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - Can't seem to make LINE-OUT work properly
Dan, It doesn't look like anybody else has responded to your last query on this thread, so I will. The reason MIC+LIN says N/A is because you are have selected LINE IN as your MIC SEL input for DATA mode. The mic input is therefore not used, and combining the two inputs is not applicable. But this wouldn't have anything to do with your LIN OUT problem anyway. I would call Elecraft tech support and see if they can think of any other reason for not being able to get the NOR output to work correctly. As you describe it, I can think of no explanation for this other than a defective board. Bill W5WVO -- From: Dan n...@mail.com Sent: Monday, September 13, 2010 00:39 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - Can't seem to make LINE-OUT work properly Thank you Don for your quick reply. However, I HAVE it set to 'nor' and it still is dependent on AF levels. I have tried to switch it to Phones just to see what difference it makes and I see no difference. I am hooked up to jack on KIO3 which is closest to the side panel with a stereo cable connected to my LINE IN of my computer (Win XP Pro). Still gives widely varying inputs to the computer when AF is rotated. Believe me, I have checked the manual in many places, including the pictures on page 4 and page 57 and page 20 before I emailed. Checking MIC + LIN it says 'not appl'- not sure what this is or why it says this. Is this relevant to the question? Dan NM3A -Original Message- From: Don Wilhelm w3...@embarqmail.com To: Dan n...@mail.com Cc: elecraft@mailman.qth.net Sent: Mon, Sep 13, 2010 12:01 am Subject: Re: [Elecraft] K3 - Can't seem to make LINE-OUT work properly Dan, See the manual page 57. If you have LIN OUT = Phones, the output level will be controlled by the AF Gain Control. Set it to nor which will be a fixed level dependent only on the menu parameter value. 73, Don W3FPR On 9/12/2010 7:43 PM, Dan wrote: I am having the same problem. Hooked up to Line Out, set LIN OUT = nor 010, but line output still dependent on AF gain setting. Only have main RX, not SUB installed. Works well with fl Digi, but must set AF gain for it to work. Anyone else have any ideas? Dan, NM3A -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Can-t-seem-to-make-LINE-OUT-work-properly-tp3888248p5524659.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Soundcards
Really good question. I installed a second sound card of the same type in my computer recently, and expected to have this problem -- but for some reason, it came up with a slight variation on the name, so I could distinguish them. Nevertheless, I'd be very interested in any knowledgeable responses to this query. Bill W5WVO -- From: David Gilbert xda...@cis-broadband.com Sent: Monday, September 13, 2010 22:32 To: Bill Conkling n...@widomaker.com Cc: 'Elecraft Reflector' elecraft@mailman.qth.net Subject: Re: [Elecraft] Dual Soundcards Yes, I agree that Windows will work with multiple sound cards, including virtual ones like Total Recorder. However, let's assume that I have two identical sound cards installed ... same manufacturer, same model number, same drivers, etc. Windows shows both of them with the exact same title in Device Manager, and any particular application will simply show both identical descriptions in their respective drop down setup menus. Is there any way I can separately identify them so that I can connect them to different external hardware and know which is being used for what? Thanks again, Dave AB7E On 9/13/2010 3:18 PM, Bill Conkling wrote: Yes, Windows XP will work with several sound cards. I can't answer for Vista or Win7. ...bc -Original Message- From: David Gilbert [mailto:xda...@cis-broadband.com] Sent: Monday, September 13, 2010 6:01 PM To: Elecraft Reflector Subject: [Elecraft] Dual Soundcards If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them (the same sound card each time) and a different Windows application would always use the other one? And yes, this is relevant to a K3 application I have in mind. Thanks es 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Dual Soundcards
On Sep 13, 2010, at 3:00 PM, David Gilbert wrote: If I install two identical sound cards in my computer, is there any way to separately identify them so that one Windows application would always use one of them... On the current version of Mac OS X, every sound device has a unique device UID that identifies the specific location of the device in the USB tree, Firewire port, or the built-in audio location of the sound card. This unique ID is therefore persistent not just across sleep/wakeup cycles, but also through reboots. You identify a sound card once (e.g., plugging and unplugging it) and it is good forever. An example of a device UID on Mac OS X is AppleUSBAudioEngine:microHAM:microHAM CODEC:fa00:2,1 Windows must have the same thing. In both OS, you are however at the mercy of the software author whether he has implemented this level of detail :-). 73 Chen, W7AY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RFI in transmitted audio [End of thread]
Yes please do post back here the final outcome. While not strictly an Elecraft issue, it is one of interest. Specifically, I'd like to know how one would properly bond equipment (I guess for DC and audio purposes) AND RF ground the same equipment at the same time. Thanks and 73, Dave AH6TD Sent from my iPhone On Sep 13, 2010, at 7:13 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: Jim, Don and Joe, To keep list traffic reasonable, let's take this recurring discussion off list to direct email for now. Once you have all agreed please feel free post the results to the list. Also, there is a lot of past info on this topic that is searchable in the list archives. Also, please keep all discussions civil on, or off, list. 73, Eric WA6HHQ Elecraft List Moderator - On 9/13/2010 9:08 AM, Jim Brown wrote: On Mon, 13 Sep 2010 09:40:00 -0400, Don Wilhelm wrote: If we were discussing RF, then your single point ground connected to a low impedance ground for RF would be correct - keep the path to RF Ground the same distance for each piece of equipment. will achieve what is needed for lightning protection. I disagree with that concept as well. The notion that a separate wire is required for each piece of gear to a point that is often at a fair distance from a closely arranged collection of gear in a typical ham shack when that gear is already well bonded together does not make sense. How, for example, do we insure that each wire is the same length, follows the same or a similar path, and thus has the same inductance? There is NO CONFLICT between bonding all equipment chassis together by the shortest practical path, as I've outlined, and making one or more bonds between that equipment and the earth electrode system (ground rods). Indeed, both IEEE Standards on Grounding and most building codes either recommend or require multiple paths to ground for lightning protection. A large part of the thinking behind that is that the inductance is reduced by having multiple wires in parallel. As hams, we tend to think of our antennas as the only source of lightning ingress to our homes, but that is FAR from reality. It's like looking at the circus elephant through a tiny hole in the tent. EVERY CONDUCTOR that enters the house, and every conductor INSIDE the house, is a receiver for energy from lightning. That's why IEEE Standards and nearly all building codes call for ALL non-powered metal to be bonded together, and to one or more earth connections, and for all earth connections to be bonded togther. One other thought on this. In thinking about how all this fuzzy thinking about so-called single point grounding came about, one source of it might be equipment with a pin 1 problem. If, for example, the bonds to the equipment are improperly made to some point OTHER THAN THE CHASSIS, then yes, lightning current WOULD go through equipment if it was daisy-chained. But that's not a GROUNDING problem, it's an EQUIPMENT problem, and it's IMPROPER bonding. The good news is that I don't recall ever seeing ANTENNA connections in ham gear with pin 1 problems (except, perhaps, for an occasional RX antenna). It's only the audio and control wiring, and an occasional IF output. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] LP Pan versus P3 Panadapters
To All, Can you please provide comments on the LP Pan versus the P3 Panadapter on the K3. The LP Pan seems to have a lot more features compared to the P3 and the cost is so much less. I understand that the LP Pan requires a PC but you get a bigger screen when using a PC. What makes the P3 better then the LP Pan for the K3, if it is ? Thank you __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BND end message
Hi Dave, The K3's IF is at 8.3 MHz. There is a lockout in the spectrum around this frequency. I think it's from 7.5 to 9 MHz, but not positive. You can RX anywhere, but TX is disabled for the range near 8.3 MHz. If you contact k3supp...@elecraft.com, I think Brian can get you a copy of the latest software. You will have to show a copy of your MARS credentials. The Membership Card is probably good enough for this. 73, matt W6NIA / NNN0UET == On Mon, 13 Sep 2010 14:27:51 -0500, you wrote: Folks, I recently received the BND end message while trying to operate (MARS) around 7.5 MHz. +/- a bit. I have used the elecraft software to open up the allowed transmission range; I do seem to remember there were still some areas to avoid; is this one of them, and if so, could I get reminded of what all they are? Is there a more recent update to that software? I lost mine in a recent computer crash... Thanks and 73 de Dave, W5SV / NNN0SLA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RFI in transmitted audio [End of thread]
Hi all, Just for the record, here is what I am doing for grounding and bonding. Outside the shack I have all coaxes coming to an entry point near a basement window where they go through. The coax shields there are all connected to a 8' grond rod near the entry point. This ground rod is also bonded to the AC utility entry box which is nearby. So far I think I am legal. Inside there is nothing bonding equipment together except the 3rd wire on the power cords to the various equipments. The K3 has isolated audio connections so that's not a problem. My most recent change is to get rid of my USB to serial adapter and instead use a serial to Ethernet adapter computer connection. I do not have a serious problem with birdies from my computer system. I do have some birdies from my network but they are definitely picked up by my antenna(s) and not by improper shielding and grounding. Am I doing anything wrong here? BTW my MFJ 4125 power supply definitely has the V- connected to the chassis and the AC plug ground, but it doesn't seem to be a big problem. I have looked inside and it doesn't look like it's easy to fix. AB2TC - Knut for my David Herring-3 wrote: Yes please do post back here the final outcome. While not strictly an Elecraft issue, it is one of interest. Specifically, I'd like to know how one would properly bond equipment (I guess for DC and audio purposes) AND RF ground the same equipment at the same time. Thanks and 73, Dave AH6TD Sent from my iPhone snip -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-RFI-in-transmitted-audio-tp5520493p5528522.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Settings for CM500 on K3?
I don't use SSB much, but I just bought the much-recommended Yamaha CM500 for those occasions when I venture up to that end of the bands. Trouble is, after following the instructions on p. 28 of the K3 operating manual, along with K7YC's suggestions in e-mail 20100908054102.5a05a58...@gw1.nlenet.net, my PEP meter says I'm running about 30W PEP output. So I've obviously done something wrong. Could some kind soul who has the CM500 on a 100W K3 post the exact settings they are using to get ~100W output (as measured by an external PEP meter)? 73 -- Doc N7DR -- Web: http://www.sff.net/people/N7DR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Settings for CM500 on K3?
Doc, I would strongly suggest you do the microphone setup to match your K3 rather than someone else's settings. The settings will depend on how you talk into the mic, so this is an individual setting. First turn the compression to zero, then increase the mic gain until you see 6 to 7 bars on the ALC meter. Than add compression as you like. You can do all that in TEST mode. When adding compression, you can listen to yourself on the monitor. Try it and see what happens - I suspect you are not hitting the ALC hard enough. 73, Don W3FPR On 9/13/2010 9:38 PM, D. R. Evans wrote: I don't use SSB much, but I just bought the much-recommended Yamaha CM500 for those occasions when I venture up to that end of the bands. Trouble is, after following the instructions on p. 28 of the K3 operating manual, along with K7YC's suggestions in e-mail 20100908054102.5a05a58...@gw1.nlenet.net, my PEP meter says I'm running about 30W PEP output. So I've obviously done something wrong. Could some kind soul who has the CM500 on a 100W K3 post the exact settings they are using to get ~100W output (as measured by an external PEP meter)? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] LP Pan versus P3 Panadapters
I don't yet have a P3, but I do use an SDR-IQ as a panadapter. I used an LP-Pan for a little bit before this. If I had to state one advantage for either of these compared to the LP-Pan it would be this: Neither of them uses PowerSDR. Wes N7WS --- On Mon, 9/13/10, Paul Maruna pmar...@yahoo.com wrote: To All, Can you please provide comments on the LP Pan versus the P3 Panadapter on the K3. The LP Pan seems to have a lot more features compared to the P3 and the cost is so much less. I understand that the LP Pan requires a PC but you get a bigger screen when using a PC. What makes the P3 better then the LP Pan for the K3, if it is ? Thank you __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] LP Pan versus P3 Panadapters
Paul, I don't see you getting a lot of comments, so I'll throw in a few cents worth, hi. I bought the P3 for several reasons, but the main one is NOT for what it is right now, but what I think it will be over time. It will have VGA output at some time and allow the big screen, and I feel we, as operators will have some input into what is on the display. It will add features as we go that I can't even think of right now. I didn't go the LP Pan or other SDR route as I didn't want to have to buy a high dollar computer to do my hamming. Same reason, among others, that I won't consider the Flex radios. I want a radio, with knobs, not a computer program!! The cost of the computer needed to do SDR right was about the same as the P3 was initially. YMMV, but that's my take. Elecraft remains responsive to our wants/needs, as long as they are reasonable. I have full confidence I won't regret the initial price and price of add-ons as they come. 73, Don, WB5HAK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2/HF Packer amp incompatibility?
A friend recently dropped off his K2 and HF Packer amp for me to troubleshoot a problem -- he was getting poor quality SSB reports on the air when he ran his K2 through his HF Packer amp. I had built both kits and had tested them separately so I was a bit skeptical that there was anything wrong. :-D However, when I ran the K2/HF Packer combo into a dummy load and monitored the transmitted signal with my Icom IC-703 I confirmed that the transmitted signal was significantly distorted. Hmmm . . . What's wrong? Just to narrow down the problem I tried the amp with my IC-703 and the transmitted signal sounded great with no discernible distortion. The only discernable difference with the amp switched in or out was the signal strength. I then monitored the K2 barefoot and it sounded fine as well. As a further check I had a friend bring over his K2 which had been aligned by Elecraft. His radio sounded fine barefoot but when it was used with the amp there was significant distortion in the monitored signal. Just in case of an impedance mismatch between the K2s and the amp I ran the experiments with both K2s using the built-in ATUs and with the ATUs out of the signal path. The results were distorted audio in all cases. I also checked to ensure that the amp wasn't being overdriven. The amp was set up for a transmitter input of 2 Watts so I used an accurate QRP Watt meter -- yes, I've checked its accuracy -- to ensure that the K2s were transmitting just under 2 Watts. I was powering the amp and the radios with a reliable and well-filtered 10 amp power supply. Just for fun, I powered the K2 with a 7 A/h gel cell and the amp with the power supply in case there was some interaction through the power cables when the radios and the amp were run from the same supply. Still no joy. During all of this testing I noticed that occasionally the rf sensing T-R switch in the amp would turn off even though the K2's power output was supposed to be just under 2 Watts which should be enough to reliably keep the T-R switch engaged. I didn't observe this behaviour when I used the IC-703 with the amp. Hmmm . . . Why is this happening? My guess is that there's something going on with the K2's ALC that's affecting the transmitter output. That would account for the T-R switch dropouts but would ALC issues create distortion? Has anyone else experienced this problem? If so, is there a solution? The K2 in question is Serial Number 1120 but it has been brought up to Revision B. We're in the midst of some house renovations so the shack is full of boxes and I'm too busy to get back to testing but after the dust settles I intend to inject an audio signal into the K2's mic input and monitor the output of the amp with an oscilloscope. I've also considered placing a resistive pad between the K2 and the amp to further isolate one device from the other. Unfortunately, I can't see getting around to those things for a few weeks. In the meantime, I'm open to suggestions. TIA and 73, Pat VE3EUR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2/HF Packer amp incompatibility?
Oops! I forgot to mention that one K2 uses a Kenwood mic while the other has an Elecraft (Heil?) mic. The monitored signals of both radios run barefoot sounded close to identical. Consequently, I've ruled out the microphone as the source of distortion. 73, Pat VE3EUR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Settings for CM500 on K3?
Hi Doc, I second Don's advice. But here are some starting points that may help. - Set the mic gain to the high range. That's in the MAIN:MIC SEL menu. - Make sure the bias is turned on; it probably is or you wouldn't hear anything. - Start with MIC gain set to about 20 and see how that works. Adjust CMP and MIC according to the instructions in the manual, watching ALC - etc. FWIW, I found the MIC gain set to about 30 is right for my voice here. YMMV. - If you need to adjust the MIC gain up, be sure and listen to yourself using a MON setting that allows you to hear your TX audio. TX TEST mode works well for this; there's no need to do on-air tests at first. Plus, if it sounds good to you it will probably sound good for everyone else. I just got CM500's working here this afternoon. The little electret power box is handy in my case, because I use the rear panel MIC/SPKR for room audio and the front panel MIC/PHONES sockets for the CM500. I just replaced the 3.5mm cable/plug with a shielded cable with MIC+/BIAS/GND signals and it all works fine. 73, matt W6NIA K3 #24 On Mon, 13 Sep 2010 19:38:20 -0600, you wrote: I don't use SSB much, but I just bought the much-recommended Yamaha CM500 for those occasions when I venture up to that end of the bands. Trouble is, after following the instructions on p. 28 of the K3 operating manual, along with K7YC's suggestions in e-mail 20100908054102.5a05a58...@gw1.nlenet.net, my PEP meter says I'm running about 30W PEP output. So I've obviously done something wrong. Could some kind soul who has the CM500 on a 100W K3 post the exact settings they are using to get ~100W output (as measured by an external PEP meter)? 73 -- Doc N7DR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Saving setting K3
When I switch to 3.805 or so. The Mode is set to USB. The mode will not show LSB. How do I save the LSB mode in this band? I have been using HRD to switch to the LSB mode. Thanks for a great radio! Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] BND end message
Thanks to all who replied it was most helpful and I am up and running as desired, with power limitations as appropriate for the close proximity to the IF. Cheers 73 de Dave, W5SV / NNN0SLA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] anyone bored endofthread
I have found someone thanks for all inquiries, now back to your regular scheduled programming. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Newbe to the list
Hi Gang been reading or lurking in the background for several days,, enjoy the help I see going around. I built my K3 2 years ago and had a ball getting it going,, did the 10 watt version and then spent that up the amp, tuner everything but the second rcv. now I added the P3 and need to do updates never done them before,, the latest is about a year old I have the cable I have the software but not the courage when I plug in the cable to the computer and make it com 4 it tries to access the K3 so I assume that is GOOD so what is the process ? connect the rs232 cable to a powered on K3,,, select rout all files to the K3,, do the update check and just set back and letter happen ?? will I get an indication that the K3 is up dated and happy ? anything happening on the K3 display ? then disconnect the RS232,, power cycle and reconnect things back up,, antenna,, mike,, P3 how long is the average time take to do it I am OK with High speed Inet Bob K3DJC EXPOSED: Make $99/hr Online BREAKING NEWS: People are beating the recession by working at home. http://thirdpartyoffers.juno.com/TGL3141/4c8ee5563cf11b26a6m03vuc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Saving setting K3
Chris, Have you tried operating the REV button (it is a HOLD operation). That is what it does. 73, Don W3FPR On 9/13/2010 10:26 PM, Chris Hembree wrote: When I switch to 3.805 or so. The Mode is set to USB. The mode will not show LSB. How do I save the LSB mode in this band? I have been using HRD to switch to the LSB mode. Thanks for a great radio! Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2/HF Packer amp incompatibility?
Pat, Are you using a common power supply on the K2 and the Amp? If so, try using separate supplies and see what happens. If the problem does not present itself, you can conclude that SSB modulation of the V- power supply line is the problem. See the discussion that appeared on this reflector over the last 2 days, subject K3 RFI in transmitted audio. 73, Don W3FPR On 9/13/2010 10:08 PM, Pat Byers wrote: A friend recently dropped off his K2 and HF Packer amp for me to troubleshoot a problem -- he was getting poor quality SSB reports on the air when he ran his K2 through his HF Packer amp. I had built both kits and had tested them separately so I was a bit skeptical that there was anything wrong. :-D However, when I ran the K2/HF Packer combo into a dummy load and monitored the transmitted signal with my Icom IC-703 I confirmed that the transmitted signal was significantly distorted. Hmmm . . . What's wrong? Just to narrow down the problem I tried the amp with my IC-703 and the transmitted signal sounded great with no discernible distortion. The only discernable difference with the amp switched in or out was the signal strength. I then monitored the K2 barefoot and it sounded fine as well. As a further check I had a friend bring over his K2 which had been aligned by Elecraft. His radio sounded fine barefoot but when it was used with the amp there was significant distortion in the monitored signal. Just in case of an impedance mismatch between the K2s and the amp I ran the experiments with both K2s using the built-in ATUs and with the ATUs out of the signal path. The results were distorted audio in all cases. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Newbe to the list
Hi Bob, The K3 Utility program has an excellent help system. If you go into the Getting Started section it should tell you what you need to know. Basically, you connect an RS-232 cable between the computer and the K3, fire up P3 Utility, and follow the directions. It is easiest if you use a computer that is connected to the Internet. That way K3 Utility can find and download the latest firmware automatically. 73, Alan N1AL On Mon, 2010-09-13 at 22:59 -0400, riese-k3...@juno.com wrote: Hi Gang been reading or lurking in the background for several days,, enjoy the help I see going around. I built my K3 2 years ago and had a ball getting it going,, did the 10 watt version and then spent that up the amp, tuner everything but the second rcv. now I added the P3 and need to do updates never done them before,, the latest is about a year old I have the cable I have the software but not the courage when I plug in the cable to the computer and make it com 4 it tries to access the K3 so I assume that is GOOD so what is the process ? connect the rs232 cable to a powered on K3,,, select rout all files to the K3,, do the update check and just set back and letter happen ?? will I get an indication that the K3 is up dated and happy ? anything happening on the K3 display ? then disconnect the RS232,, power cycle and reconnect things back up,, antenna,, mike,, P3 how long is the average time take to do it I am OK with High speed Inet Bob K3DJC EXPOSED: Make $99/hr Online BREAKING NEWS: People are beating the recession by working at home. http://thirdpartyoffers.juno.com/TGL3141/4c8ee5563cf11b26a6m03vuc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] LP Pan versus P3 Panadapters
I too would like to see details of the improvement over LPan etc. I am a long time user of SDR/computer panadapters for use in detecting very weak signals at UHF/VHF/microwave. I use a Softrock on the K3 IF port since I got my K3 a year ago. I have yet to see one report regarding weak sig detection with the P3 after many requests to the initial testers of the P3. ANYONE out there looking for weak weak sigs with a P3?? 73 Bill K0AWU EN37ed --- From: pmar...@yahoo.com To: elecraft@mailman.qth.net Date: Mon, 13 Sep 2010 20:00:52 -0400 Subject: [Elecraft] LP Pan versus P3 Panadapters To All, Can you please provide comments on the LP Pan versus the P3 Panadapter on the K3. The LP Pan seems to have a lot more features compared to the P3 and the cost is so much less. I understand that the LP Pan requires a PC but you get a bigger screen when using a PC. What makes the P3 better then the LP Pan for the K3, if it is ? Thank you __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] LP Pan versus P3 Panadapters
Bill, I cannot say anything about the comparison of weak signals on the waterfall between the two, but one great advantage of the P3 is the ability to adjust the span - you can go from observing a 200 kHz chunk of the band (-100 kHz to +100 kHz) to a width that will allow you to examine a single signal in detail. 73, Don W3FPR On 9/14/2010 12:01 AM, Bill Davis Jr wrote: I too would like to see details of the improvement over LPan etc. I am a long time user of SDR/computer panadapters for use in detecting very weak signals at UHF/VHF/microwave. I use a Softrock on the K3 IF port since I got my K3 a year ago. I have yet to see one report regarding weak sig detection with the P3 after many requests to the initial testers of the P3. ANYONE out there looking for weak weak sigs with a P3?? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Saving setting K3
Thanks to Greg N4CC, I made an error - the proper K3 button is ALT (HOLD of the MODE down button). I was thinking of the K2 CW REV button which will switch sidebands on the K2. 73, Don W3FPR Chris, Have you tried operating the REV button (it is a HOLD operation). That is what it does. 73, Don W3FPR On 9/13/2010 10:26 PM, Chris Hembree wrote: When I switch to 3.805 or so. The Mode is set to USB. The mode will not show LSB. How do I save the LSB mode in this band? I have been using HRD to switch to the LSB mode. Thanks for a great radio! Chris W7CTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] LP Pan versus P3 Panadapters
Bill, All I can tell you is if I can hear it I can see it! Rick K6LE On 9/13/2010, at 9:01 , Bill Davis Jr wrote: I too would like to see details of the improvement over LPan etc. I am a long time user of SDR/computer panadapters for use in detecting very weak signals at UHF/VHF/microwave. I use a Softrock on the K3 IF port since I got my K3 a year ago. I have yet to see one report regarding weak sig detection with the P3 after many requests to the initial testers of the P3. ANYONE out there looking for weak weak sigs with a P3?? 73 Bill K0AWU EN37ed __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
