Re: [Elecraft] K3: KRX3 Shipping?
Should be delivered at this QTH today :-) Ordered with rest of K3 on 2-May-07 73 de M0XDF, K3 #174 -- Hofstadter's Law: The time and effort required to complete a project are always more than you expect, even when you take into account Hofstadter's Law. On 29 Jul 2008, at 14:01, Jerry T. Dowell wrote: Is anyone receiving their KRX3s? My order has been in for over 13 months, but no sign of it yet! The S/N of my K3 is 467. ___ 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] OT: fan control in MFJ-4225MV switching P/S
Alan Bloom wrote: The cool (pun intended) way to do it is to use a thermostat wired in parallel with a resistor in series with the fan. The fan only runs at full voltage when the heat sink gets hot. The Astron SS-30 has a very noisy fan that is controlled by a thermal switch on the heatsink. But there isn't sufficient cooling when the fan is off, so every few minutes brings another blast of fan noise. A 100-ohm 3W resistor in parallel with the thermal switch will keep the fan running slowly and quietly, all the time. With a typical load from a "100W" transceiver, I've never heard it switch to full speed again. The main concern is to be sure that the fan still turns on reliably with the resistor in series. I would test to find the largest resistance that allows the fan to start and use no more than half that value, to allow for changes in fan characteristics as it ages. Agreed. 100 ohms gives brisk and reliable starting for that particular 12V fan, but other fans will vary. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ 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: KRX3 Shipping?
Well David, You knew that it would take some time. The Hofstetter 's Law is directly under your message hi! I will try to remember the Law, I ordered my KRX3 yesterday :-) 73 's Steef PA2A Subject: Re: [Elecraft] K3: KRX3 Shipping? > Should be delivered at this QTH today :-) > Ordered with rest of K3 on 2-May-07 > 73 de M0XDF, K3 #174 > -- > Hofstadter's Law: The time and effort required to complete a project are > always more than you expect, even when you take into account > Hofstadter's > Law. ___ 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] K3/10 Kit, #1230
For whom is still tracking deliveries K3/10 Kit, Serial # 1230 KFL3A - 2.8K Filter KAT3 KPCA-F KUSB MH2-R After a long waiting time, invoiced at 23/05/2008. Sent to my friend in Holmdel, NJ. I have picked up from there last week and carried as hand baggage. Passed through Dullas-Washington DC and JFK-New York,NY airports security on August 02security without any trouble. Assembly completed in Istanbul-Turkey on August 04. It is working now as expected. 73, Ruchan Ozatay, TA2AH ___ 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: KRX3 Shipping?
Yes 73 de M0XDF, K3 #174 -- Hofstadter's Law: The time and effort required to complete a project are always more than you expect, even when you take into account Hofstadter's Law. On 30 Jul 2008, at 00:51, n4lq wrote: Does Elecraft notify you before shipping to be sure you still want it? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Downloaded Firmware
H have had both success and failres downloading firmware using IE6 and IE7 but I have never had anyproblems at all using Firefox as long as you have the settings correct. I have kept a record of all Beta firmware since 1.94 and general releases since 1.96. If anyone wants a copy of these please feel free to ask me off line and I will gladly comply. 73 Dave KD1NA PS ESSB really works great. Gotton good reports with good fidility and no distortion as long as you kept the compression down to around 25. (Using a cheap dynimic microphone). ___ 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] OT: fan control in MFJ-4225MV switching P/S
I used a 5 volt regulator on my MFJ 4225 to slow down the fan. This allows the fan to start reliably at any voltage. I have run mine and my K2-100 this way for at least 5 years with no problem on SSB, CW and DIGITAL. 73 Ken W0CZ Bill NZ0T Wrote http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] [K3] power switch problem
My K3 appears to have developed a power switch problem - it won't turn off. While away on Scout camp last week, I allowed another 2 hams to work the K3 while I was not present (one is quite young and the other an adult) - later on, one of them noticed that the K3 had turned itself on (after they had turned it off and walked away). The K3 was working correctly for the first few days and as far as I know, was not 'bounced' around while sitting on the table during the week. All functions appear correct except for this. After investigation, I found I can not turn it off. Pressing the power button results in one of the following behaviours: Most common: LCD just shows background colour (light is on), LEDs are off, effectively the rig is off (no AF etc), but the LCD is not and I can't turn it back on with a press of the power button. Occasionally: K3 turns off correctly, but then turns back within a matter of seconds. Less occasionally: as above, but turns back on after a few minutes. Rarely: Appears to turn off as per first scenario, but LCD flickers. To resolve this, I have to pull out the power cord and plug it back in, in which case the K3 turns on - so it's like the power switch is permanently on. This is not the ALARM function. In fact, I tried the alarm to see if it would turn on correctly - it won't, but it did bleep at me when I pulled the power out the back and plugged it back in. I have tried a 'master reset' holding the power switch in, it make no different, doesn't reset and doesn't turn off etc. In preparation for the reset, I went through and noted all the config settings, changing a couple on the way. After that, the K3 turned off ok, but came back on after a few minutes. Holding the power switch while applying power results in the LEDs coming on, but nothing else. I thought this might have been a problem with dampness, but the rig has been in my indoor shake for 3 days now. I also considered supply voltage, since at camp I was using a L/A battery, but its back on the 13.615v supply now (I have a Medusa Research Power Analyzer). I'm about to install the KRX3, so will be taking it apart, but would prefer to resolve this first. Any suggestions? This has been working perfectly since December. 73 de M0XDF, K3 #174 -- Study without desire spoils the memory, and it retains nothing that it takes in. -- Leonardo da Vinci ___ 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 - Strange problem on 10 Meter SSB with power
Hello Lyle, I personally am not experiencing the low SSB output on any band, but I am considering going from the 2.7K filters in the K3 and KRX3 (matching filters) to the 2.8K filters. I may be asking for trouble by doing this. Is there any indication as far as you know that the filters may be a part of the "10 meter SSB output power problem"? Thanks. Roy Morris W4WFB ___ 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] power switch problem
My K3 appears to have developed a power switch problem - it won't turn off. While away on Scout camp last week, I allowed another 2 hams to work the K3 while I was not present (one is quite young and the other an adult) - later on, one of them noticed that the K3 had turned itself on (after they had turned it off and walked away). The K3 was working correctly for the first few days and as far as I know, was not 'bounced' around while sitting on the table during the week. All functions appear correct except for this. After investigation, I found I can not turn it off. Pressing the power button results in one of the following behaviours: Most common: LCD just shows background colour (light is on), LEDs are off, effectively the rig is off (no AF etc), but the LCD is not and I can't turn it back on with a press of the power button. Occasionally: K3 turns off correctly, but then turns back within a matter of seconds. Less occasionally: as above, but turns back on after a few minutes. Rarely: Appears to turn off as per first scenario, but LCD flickers. To resolve this, I have to pull out the power cord and plug it back in, in which case the K3 turns on - so it's like the power switch is permanently on. This is not the ALARM function. In fact, I tried the alarm to see if it would turn on correctly - it won't, but it did bleep at me when I pulled the power out the back and plugged it back in. I have tried a 'master reset' holding the power switch in, it make no different, doesn't reset and doesn't turn off etc. In preparation for the reset, I went through and noted all the config settings, changing a couple on the way. After that, the K3 turned off ok, but came back on after a few minutes. Holding the power switch while applying power results in the LEDs coming on, but nothing else. I thought this might have been a problem with dampness, but the rig has been in my indoor shake for 3 days now. I also considered supply voltage, since at camp I was using a L/A battery, but its back on the 13.615v supply now (I have a Medusa Research Power Analyzer). I'm about to install the KRX3, so will be taking it apart, but would prefer to resolve this first. Any suggestions? This has been working perfectly since December. 73 de M0XDF, K3 #174 -- Study without desire spoils the memory, and it retains nothing that it takes in. -- Leonardo da Vinci ___ 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] power switch problem
Done that twice now and no difference. I have not experienced any problems with the 'electronics' before. -- There is no pillow so soft as a clear conscience. -French proverb On 5 Aug 2008, at 14:57, Dave Martin wrote: I'd try reloading the firmware, including the "DSP data tables". My #605 did some crazy things when it was new until I did this. Apparently the K3 is subject to memory corruption. 73, Dave W5DHM ___ 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: K2 LCD/Backlight query
Hi Guys, built my K1 about 4 years ago and still performing like new, but now on with my K2 serial No. 6563. I have a few queries on the LCD/backlight installation. I think I understand the manual/errata but just want to make sure since I have seen a few postings on this issue. My backlight assembly has a very loose fitting label on the underside which covers the whole surface and has text on it (part Nos etc) The top side has a thin plastic film which again covers the whole surface. Question: The manual says do not remove the backing from either side of the diffuser. Does this mean just during installation or not at all. My LCD display component has a film on the front glass which according to the manual is peeled off later in construction, is this correct. On the rear side there is a plastic film (silvery grey) stuck to the glass. There are no lines on it (mentioned in the errata). Do I remove this film? Apologies if this has already been covered in previous posts. Really enjoying the build and has coincided with an injury to my Achilles tendon (heel) which has put me off work for 10 weeks in a plaster cast so plenty of time for K2 build! Thanks guys 73s Martin M0KWV K1 1534 K2 6563 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: Beam info, please
Hello all: I have a three element Telrex 20 meter monoband (Yagi) beam at 75 feet. I successfully added two 15 meter elements in between the three 20 meter elements in the same plane and on the same boom as the 20 meter elements. As best I can measure, the addition of the 15 meter elements had no effect on the 20 meter beam. ( no detectable swr change) Both beams work very well. So here's my question: I would like to remove the 15 meter elements and replace them with two elements for 30 meters, using a gamma match system. Will the 30 meter elements have a detrimental effect on the 20 meter beam?? If so, I can move them up the mast and use a boom just for this new beam. If I do that, what is the minimum seperation I should use? Thanks George, n4ym K2 # 4758 K3 # 340 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 question--TCXO or another filter?
On Tue, Aug 5, 2008 at 1:44 AM, Dave G4AON <[EMAIL PROTECTED]> wrote: > The difference between TCXOs is 4ppm not 4 Hz. The standard TCXO can be +/- > 250 Hz at 50 MHz, the optional one can be +/- 50 Hz at 50 MHz or perhaps +/- > 25 Hz once the firmware is changed to allow the supplied calibration table > to be used. Using the optional 1ppm TCXO in my K3 results in a typical Thank you Dave (and others who corrected me in private), you are correct I did make a mistake, the 5ppm / 1ppm ( 5E-6 / 1E-6) is relative to the oscillator's frequency, 49.380 MHz, so the actual expected frequency error (tolerance / stability) is as Dave gave above. -Michael, VE3TIX ___ 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 - Strange problem on 10 Meter SSB with power
...Is there any indication as far as you know that the filters may be a part of the "10 meter SSB output power problem"? The problem I have been aware of is the LSB/USB power output difference. That seemed to be confined to 2.7 kHz filters, was related to the center frequency offset, and should be fixed in the latest beta firmware. 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 - Strange problem on 10 Meter SSB with power
I have the 2.8 filter installed so the problem is not limited to the 2.7. Mike/aj9c Lyle Johnson <[EMAIL PROTECTED]> wrote: > > ...Is there any > > indication as far as you know that the filters may be a part > > of the "10 meter SSB output power problem"? > > The problem I have been aware of is the LSB/USB power output difference. > That seemed to be confined to 2.7 kHz filters, was related to the > center frequency offset, and should be fixed in the latest beta firmware. > > 73, > > Lyle KK7P > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Audio
G'day, Had the chance to listen to the Rob Sherwood presentation at Dayton Drake Forum 2008. Very interesting but he had a couple of rather unflattering issues with the K3. Looks like the output at both ends of the chain, RF and AF could be better, particularly the AF. Looks like my subjective concerns about the hard audio were not misplaced. I'm not golden eared but they still work OK. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1: Advice on Options
Hello, all, I'm about to order a K1, and thought I'd ask your opinions about various options and configuration choices. 1. I understand the tuning range can be set to either 75kHz or 150kHz. My inclination is to go with the 75kHz range, for the slower tuning rate. 2. Somewhat related to 1), will I be better off with a range of 7000-7075kHz or 7025-7100kHz, or possibly some other coverage. 3. What are your thoughts on the following options? In particular, are they effective, and are any of them much easier to install during initial assembly (as opposed to being retrofit)? A. KAT1 Antenna Tuner B. KNB1 Noise Blanker C. KBT1 Battery Holder Thanks and 73, Dave KQ3T ___ 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] K1: Advice on Options
Dave: I have a K1 built it in 2003. Tuning range, I tried 150 KHz, too fast tuning. I played with it a bit and come up with about 80 KHz, seems very nice. Noise Blanker, I have it. Helpful only sometimes. Battery Holder, I did not get it. ATU, works very well. Fed the antenna with ladder line and the BL2. With a 88' dipole at 40'. I worked 48 states, 47 QSL. Got into ECN on both 40 and 20 almost every time I tried. Very pleased with the K1. Then moved and have to start all over again. I have the 4 band board. Built it for 40, 30, 20, 17M. Since then I have changed the 17M to 15M, heard VP6DX on 15. I am located in north GA. 73, Ty, K1 #1423, K3 #696 --- On Tue, 8/5/08, Dave KQ3T <[EMAIL PROTECTED]> wrote: > From: Dave KQ3T <[EMAIL PROTECTED]> > Subject: [Elecraft] K1: Advice on Options > To: "Elecraft Reflector" > Date: Tuesday, August 5, 2008, 12:06 PM > Hello, all, > > I'm about to order a K1, and thought I'd ask your > opinions about various > options and configuration choices. > > 1. I understand the tuning range can be set to either 75kHz > or 150kHz. > My inclination is to go with the 75kHz range, for the > slower tuning rate. > > 2. Somewhat related to 1), will I be better off with a > range of > 7000-7075kHz or 7025-7100kHz, or possibly some other > coverage. > > 3. What are your thoughts on the following options? In > particular, are > they effective, and are any of them much easier to install > during > initial assembly (as opposed to being retrofit)? >A. KAT1 Antenna Tuner >B. KNB1 Noise Blanker >C. KBT1 Battery Holder > > Thanks and 73, > > Dave KQ3T ___ 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: K1: Advice on Options
Dave 1. I find my K1 a bit coarse on tuning even when set to the 75 KHz tuning range. 2. Can't help, here in Europe CW only runs from 7.00 to 7.035 or so on 40m. 3. A: KAT1 only has limited range but it is effective when tuning antennas provided you prune your antenna to suit. It works fine on most antennas and is not a problem with most reasonable antennas. I slightly modified my KAT1 to give better tuning on my home doublet on 80m/40m, details at: http://www.astromag.co.uk/pdfs/g4aon_kat1_mods.pdf 3. B: Not got one or any pulse noise in need of blanking. 3. C: I personally don't think the battery holder option is worthwhile, using 8 NiMh cells (internal battery holder limit) would restrict the power output to about 3 Watts, although 1.5 Volt cells would be OK as they give 12 Volts. I've heard of issues with freshly charged warm/hot batteries causing the K1 to drift when first fitted, it may or may not be an issue. I use an external pack of 10 x NiMh cells in a small plastic project box, this is another box to carry but does allow for full output from the K1. You didn't mention band/board choice... I have the four band board set at 40/30/20/15 and a two band board with 80/40. If you do plan to change boards and have the internal ATU, one tip is to thread a rubber band through each of the spacers to hold them on their bolts while swapping boards. If you go that route you will see what I mean. I have the wide range tilt stand and that is quite neat for using the rig on a bench with the shorter arms. 73 Dave, G4AON K1, K2 and K3/100 (no KX1...) __ I'm about to order a K1, and thought I'd ask your opinions about various options and configuration choices. 1. I understand the tuning range can be set to either 75kHz or 150kHz. My inclination is to go with the 75kHz range, for the slower tuning rate. 2. Somewhat related to 1), will I be better off with a range of 7000-7075kHz or 7025-7100kHz, or possibly some other coverage. 3. What are your thoughts on the following options? In particular, are they effective, and are any of them much easier to install during initial assembly (as opposed to being retrofit)? A. KAT1 Antenna Tuner B. KNB1 Noise Blanker C. KBT1 Battery Holder Thanks and 73, Dave KQ3T ___ 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] Come join the NAQCC!!
Come join the NAQCC and help us in our mission to preserve and encourage CW activity on our amateur bands. The NAQCC (North American QRP CW Club) is for ALL CW enthusiasts around the world. Our members include "Big Gun" contesters, hard-core QRPers, experimenters, ragchewers and SWLers; young and old alike. As different as we may be, we all share one thing in common, and that is our love for CW. We welcome all who want to help support CW and have at least some interest in using QRP from time-to-time. Our club runs monthly sprints and challenges. Plus we sponsor some additional special on-air activities during the year. Membership is free and once you join you're automatically a lifetime member! So sign up today and help us keep CW alive and well. Visit our web site at http://www.arm-tek.net/~yoel/. You'll find info on our various activities plus an online membership application. We look forward to your support and hope to soon see your call added to our membership roster. 73, Paul/KD2MX NAQCC Membership Recruiter On behalf of: Tom, WY3H - NAQCC President John, K3WWP - NAQCC Vice President Larry, W2LJ - NAQCC Asst. Publicity Director Dave, VA3RJ/VE3JDR - NAQCC Publicity Officer Norm, VE3SIC, Canadian & DX Publicity Officer ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 Audio
I'm not exactly sure what it is but with the K1 connected to the RX_OUT jack then switching to RX_ANT and getting the antenna connected to the K1 I often find that I prefer the sound of the sigs on the K1 to that of the K3. But the K3 is a LOT easier to get on freq (I selected the 150Khz bandwidth on my K1 so the knob is FAST :)) and I also have a lot more options available to me on the K3 to play with the signal. But I do admit that there are often times that after playing with the signal on the K3 for a bit I prefer the way the K1 sounds out of the box. The cool thing about any sort of shortcoming you find in the K3 is that you never know how long it will be there. With any other radio you know it'll be there forever. With the K3 it's kinda like an adventure... HIHI. I'm having fun... :) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Harris Sent: Tuesday, August 05, 2008 8:45 AM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 Audio G'day, Had the chance to listen to the Rob Sherwood presentation at Dayton Drake Forum 2008. Very interesting but he had a couple of rather unflattering issues with the K3. Looks like the output at both ends of the chain, RF and AF could be better, particularly the AF. Looks like my subjective concerns about the hard audio were not misplaced. I'm not golden eared but they still work OK. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K1: Advice on Options
I have the 150Khz range selected and I'm not sure which I prefer. You lose the ability to get to 10.0Mhz and I sometimes use that to check frequency or just to generally check the rig and stuff. The 150Khz does make the knob awfully touchy but I'm into fiddly knobs. I find that many of the older guys using the rig during this last field day were turned off by it and were upset that they couldn't adjust the tuning rate. They kept telling me there had to be a way to change the rate. I told them they were holding a POT and they finally got it... :) I personally find the tuner invaluable! But it's also quite the retrofit. Not a big deal at all. The noise blanker is just about the same. I think I had to remove a component to do the NB and the ATU was just pulling a wire out of a connector. I can't speak on the internal battery adapter but personally after looking at it and the fact that it puts in a smaller speaker and changes a bunch of stuff I think I'd prefer an external battery with a connector thrown on it to allow it to be plugged into the rear jack. Having to open the top just to get to the batteries would be a bit annoying. Although I end up having to take the thing apart anyway every time someone new operates it cause they wanna see it. This last field day was great. I went to setup the K1 on the bench for him to play with. The guy told me life was too short for QRP so I set the K3 to 5 watts when he wasn't looking. After he broke a few pileups I told him he's been running 5 watts for the last 4 or 5 hours. :) Have fun with the K1... Its been one of my favs! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave KQ3T Sent: Tuesday, August 05, 2008 9:06 AM To: Elecraft Reflector Subject: [Elecraft] K1: Advice on Options Hello, all, I'm about to order a K1, and thought I'd ask your opinions about various options and configuration choices. 1. I understand the tuning range can be set to either 75kHz or 150kHz. My inclination is to go with the 75kHz range, for the slower tuning rate. 2. Somewhat related to 1), will I be better off with a range of 7000-7075kHz or 7025-7100kHz, or possibly some other coverage. 3. What are your thoughts on the following options? In particular, are they effective, and are any of them much easier to install during initial assembly (as opposed to being retrofit)? A. KAT1 Antenna Tuner B. KNB1 Noise Blanker C. KBT1 Battery Holder Thanks and 73, Dave KQ3T ___ 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] power switch problem
David, Your problem sounds EXACTLY like the one I had with my K3 (#96). I went through the same sequence of events as you seem to be experiencing. Initially, the K3 started turning back on by itself; then later it wouldn't turn off at all, and had to be unplugged from power to turn it off completely. When it wouldn't turn off, the LCD remained dimly lit, but no audio, etc. Removing power and then plugging power back in again effectively recycled the radio, but the "power button" was not used at all. For a time the K3 would suddenly return to normal operation with the power switch functioning correctly, but this happened only a few times, and didn't last for very many cycles. Other than the problem of powering the radio on and off, the radio worked just fine. All of this sounds like what you are also experiencing. Gary Surrency at Elecraft had me check various voltages, etc., but nothing turned up the problem. They even sent me a new front panel to install, but that wasn't the problem either. Ultimately I had to return the K3 to Elecraft, as they felt it was probably something on the main board that would have to be serviced. The repair itself was performed by Rene in Aptos. He determined that there was a problem with a "leaky" component, on the I/O board I believe. In any event, Elecraft is aware of this issue, and can readily solve it. Hopefully they can do it now without you having to return the radio, which would be more of a problem for you since you are in the U.K. I suggest you contact either Gary or Rene at Elecraft support. You might mention to them that we have corresponded, and that your problem seems identical to the one I experienced. In your case they may just send you a new I/O board, assuming I am correct that it was where my problem existed. There apparently have been a couple of other similar cases that may not have involved the I/O board, but still had the same symptoms. Changing the front panel apparently solved at least one problem that I am aware of. If it is the I/O board or front panel, you probably wouldn't need to send the radio back to Elecraft. The upside of returning the entire radio is that, besides fixing your problem, they will go over it thoroughly, and probably make any mods that have come out since your radio was shipped. They did that for me. My K3 is performing perfectly now. Hope this helps, or at least gives you some comfort. In any event, I doubt seriously that your friends who borrowed your K3 did anything wrong. It was just coincidence that the problem occurred while in their possession. I bet they are feeling awful, thinking they might have caused the problem. Let me know if you have any other questions. Dave W7AQK - Original Message - From: "David Ferrington, M0XDF" <[EMAIL PROTECTED]> To: ""Crafters"" Cc: "K3Support" <[EMAIL PROTECTED]> Sent: Tuesday, August 05, 2008 6:20 AM Subject: [Elecraft] [K3] power switch problem My K3 appears to have developed a power switch problem - it won't turn off. While away on Scout camp last week, I allowed another 2 hams to work the K3 while I was not present (one is quite young and the other an adult) - later on, one of them noticed that the K3 had turned itself on (after they had turned it off and walked away). The K3 was working correctly for the first few days and as far as I know, was not 'bounced' around while sitting on the table during the week. All functions appear correct except for this. After investigation, I found I can not turn it off. Pressing the power button results in one of the following behaviours: Most common: LCD just shows background colour (light is on), LEDs are off, effectively the rig is off (no AF etc), but the LCD is not and I can't turn it back on with a press of the power button. Occasionally: K3 turns off correctly, but then turns back within a matter of seconds. Less occasionally: as above, but turns back on after a few minutes. Rarely: Appears to turn off as per first scenario, but LCD flickers. To resolve this, I have to pull out the power cord and plug it back in, in which case the K3 turns on - so it's like the power switch is permanently on. This is not the ALARM function. In fact, I tried the alarm to see if it would turn on correctly - it won't, but it did bleep at me when I pulled the power out the back and plugged it back in. I have tried a 'master reset' holding the power switch in, it make no different, doesn't reset and doesn't turn off etc. In preparation for the reset, I went through and noted all the config settings, changing a couple on the way. After that, the K3 turned off ok, but came back on after a few minutes. Holding the power switch while applying power results in the LEDs coming on, but nothing else. I thought this might have been a problem with dampness, but the rig has been in my indoor shake for 3 days now. I also considered supply voltage
Re: [Elecraft] [K3] power switch problem
David, thank you for that, from other mails, it looks very much like the KIO3 board - removing it solves the proble, putting it back in and the problem comes back. Lyle has suggested just cleaning it might help, but I'd prefer to get a replacement board since I think the problem would return at some point. Of my friends, I think only the adult would have been aware of the problem and I'll let him know the outcome. I in no way blamed them. I originally considered it might have been some odd combination of use, but after investigations, clearly not. As you say, purely coincidence, perhaps brought on by field conditions and made worse by not being present when the fault first appeared. -- By all means marry. If you get a good wife, you'll be happy. If you get a bad one, you'll become a philosopher. -Socrates On 5 Aug 2008, at 19:01, David Yarnes wrote: David, Your problem sounds EXACTLY like the one I had with my K3 (#96). I went through the same sequence of events as you seem to be experiencing. Initially, the K3 started turning back on by itself; then later it wouldn't turn off at all, and had to be unplugged from power to turn it off completely. When it wouldn't turn off, the LCD remained dimly lit, but no audio, etc. Removing power and then plugging power back in again effectively recycled the radio, but the "power button" was not used at all. For a time the K3 would suddenly return to normal operation with the power switch functioning correctly, but this happened only a few times, and didn't last for very many cycles. Other than the problem of powering the radio on and off, the radio worked just fine. All of this sounds like what you are also experiencing. Gary Surrency at Elecraft had me check various voltages, etc., but nothing turned up the problem. They even sent me a new front panel to install, but that wasn't the problem either. Ultimately I had to return the K3 to Elecraft, as they felt it was probably something on the main board that would have to be serviced. The repair itself was performed by Rene in Aptos. He determined that there was a problem with a "leaky" component, on the I/O board I believe. In any event, Elecraft is aware of this issue, and can readily solve it. Hopefully they can do it now without you having to return the radio, which would be more of a problem for you since you are in the U.K. I suggest you contact either Gary or Rene at Elecraft support. You might mention to them that we have corresponded, and that your problem seems identical to the one I experienced. In your case they may just send you a new I/O board, assuming I am correct that it was where my problem existed. There apparently have been a couple of other similar cases that may not have involved the I/O board, but still had the same symptoms. Changing the front panel apparently solved at least one problem that I am aware of. If it is the I/O board or front panel, you probably wouldn't need to send the radio back to Elecraft. The upside of returning the entire radio is that, besides fixing your problem, they will go over it thoroughly, and probably make any mods that have come out since your radio was shipped. They did that for me. My K3 is performing perfectly now. Hope this helps, or at least gives you some comfort. In any event, I doubt seriously that your friends who borrowed your K3 did anything wrong. It was just coincidence that the problem occurred while in their possession. I bet they are feeling awful, thinking they might have caused the problem. Let me know if you have any other questions. Dave W7AQK - Original Message - From: "David Ferrington, M0XDF" <[EMAIL PROTECTED] > To: ""Crafters"" Cc: "K3Support" <[EMAIL PROTECTED]> Sent: Tuesday, August 05, 2008 6:20 AM Subject: [Elecraft] [K3] power switch problem My K3 appears to have developed a power switch problem - it won't turn off. While away on Scout camp last week, I allowed another 2 hams to work the K3 while I was not present (one is quite young and the other an adult) - later on, one of them noticed that the K3 had turned itself on (after they had turned it off and walked away). The K3 was working correctly for the first few days and as far as I know, was not 'bounced' around while sitting on the table during the week. All functions appear correct except for this. After investigation, I found I can not turn it off. Pressing the power button results in one of the following behaviours: Most common: LCD just shows background colour (light is on), LEDs are off, effectively the rig is off (no AF etc), but the LCD is not and I can't turn it back on with a press of the power button. Occasionally: K3 turns off correctly, but then turns back within a matter of seconds. Less occasionally: as above, but turns back on after a few minutes. Rarely: Appears to turn off as per first
Re: [Elecraft] K3 Audio
Down to the single digit figits - hoping for mine to ship in "days". Wouldn't something like this be affected by equalization? 73, Jim - Original Message - From: "Brett Howard" <[EMAIL PROTECTED]> To: "'Mike Harris'" <[EMAIL PROTECTED]>; Sent: Tuesday, August 05, 2008 12:44 PM Subject: RE: [Elecraft] K3 Audio > I'm not exactly sure what it is but with the K1 connected to the RX_OUT jack > then switching to RX_ANT and getting the antenna connected to the K1 I often > find that I prefer the sound of the sigs on the K1 to that of the K3. But > the K3 is a LOT easier to get on freq (I selected the 150Khz bandwidth on my > K1 so the knob is FAST :)) and I also have a lot more options available to > me on the K3 to play with the signal. But I do admit that there are often > times that after playing with the signal on the K3 for a bit I prefer the > way the K1 sounds out of the box. The cool thing about any sort of > shortcoming you find in the K3 is that you never know how long it will be > there. With any other radio you know it'll be there forever. With the K3 > it's kinda like an adventure... HIHI. > > I'm having fun... :) > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Harris > Sent: Tuesday, August 05, 2008 8:45 AM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] K3 Audio > > G'day, > > Had the chance to listen to the Rob Sherwood presentation at Dayton Drake > Forum 2008. Very interesting but he had a couple of rather unflattering > issues with the K3. Looks like the output at both ends of the chain, RF > and AF could be better, particularly the AF. > > Looks like my subjective concerns about the hard audio were not misplaced. > I'm not golden eared but they still work OK. > > Regards, > > Mike VP8NO > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ 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 - Strange problem on 10 Meter SSB with power
Hi Lyle, I do not know if we all might be talking about various ills with similar symptoms. It might be that more than effect might be behind the various observations, imho. What I have, to the best of my memory, observed in various firmware versions is that there is/was a tendency for the K3 to have lower output in SSB on both(?) sidebands than in CW or tune modes. The output is at times 1dB less and at times 6 or more dB lower. This effect is stronger at lower power levels than at higher and usually occurred after changing the power level request while in SSB. This was at times a major fubar, but in the newer versions of the K3 firmware on my K3 (#67) the situation has greatly improved. Because I had sent more than one mail to Elecraft, in the distant past, about this and the situation, at least for me, has been improving, I did not want to harp about it. For example, during our expedition to OY in early July such weirdness only popped up very rarely. I have not tested the newest beta firmware for this (yet). I have the 2.7kHz filter in my K3. vy 73 de toby, dd5fz Lyle Johnson wrote: The problem I have been aware of is the LSB/USB power output difference. That seemed to be confined to 2.7 kHz filters, was related to the center frequency offset, and should be fixed in the latest beta firmware. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 # 2047 comes alive!
Hi everybody, I just finished to assemble my KX1 with autotuner and 30/80 option and I have one question for you: "As the the manual has been written for 20-30 and 40 meters bands, the lenghts for a long wire are given for those bands. How long should it be for having a good compromise even on 80 mtrs? I'd like to have just one wire for backpacking" Thanks in advance Sante, IK0HBN ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K3 Audio
I use TX equalisation with my K3 to improve on my deep gravelly voice. It sounds far better than my TS-480 with a similar microphone on both transceivers (Kenwood MC-43S on the K3, stock mic on the '480), the TS-480 has limited equalisation on TX but even with that it's well below the quality of the K3 audio which sounds to my ears close to as good as it's going to get from my voice. Unsolicited reports on the quality of my K3 TX audio are commonplace and I've never received reports such as those at any time in my 37 years of operating... I don't think there is anything wrong with the K3 TX audio. On receive the only "quality" receiver I have for comparison is a Drake R4A and the K3 sounds better than that, and the R4A isn't at all unpleasant to listen to... The Drake meets specification and has new smoothing capacitors... The K3 receiver has an open sound which can sound harsh when combined with a lot of background hash in the form of white noise from a typical domestic situation where you are surrounded by houses with computers, switched mode PSUs, etc. Under clean band conditions that openness sounds great when listening to SSB with the same DSP bandwidth as the roofing filter (2.8 KHz in my case). I use no equalisation on receive. Bottom line to me is the K3's audio is fine. And no, I'm not on commission from Elecraft! 73 Dave, G4AON K3/100 #80 "Wouldn't something like this be affected by equalization?" ___ 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 - Strange problem on 10 Meter SSB with power
Toby Deinhardt wrote: Hi Lyle, I do not know if we all might be talking about various ills with similar symptoms. It might be that more than effect might be behind the various observations, imho. What I have, to the best of my memory, observed in various firmware versions is that there is/was a tendency for the K3 to have lower output in SSB on both(?) sidebands than in CW or tune modes. The output is at times 1dB less and at times 6 or more dB lower. This effect is stronger at lower power levels than at higher and usually occurred after changing the power level request while in SSB. Have you tried setting Config: TXG VCE to 3.0dB? 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 Audio
You know I was thinking that the K1 would have a much narrower AF bandwidth and if I remember right I think I remember seeing some caps in the feedback loop that would cause some stuff like that. But then in the K3 there are all the IF filters and DSP IF filters that should be doing that same thing. I mean I could mess with the RX EQ and narrow it all down around sidetone pitch but I don't find it to make a lot of difference because as I understand it a lot of those frequencies shouldn't be there anyway if you have the filter set pretty narrow. I usually run around 250Hz wide on both rigs when in QSO. And the K3 does have the 250Hz 8-pole filter installed. I also don't really mess with the RX EQ much other than cutting out some of the high stuff that kinda grates on my ears. I find that not to be annoying when ever I listen to voice stuff and that makes for an acceptable all around RX EQ setting. I think that if there are ever per mode RX EQ settings I'll play with that feature more. Congrats on your K3 shipping soon! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Miller Sent: Tuesday, August 05, 2008 12:41 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Audio Down to the single digit figits - hoping for mine to ship in "days". Wouldn't something like this be affected by equalization? 73, Jim - Original Message - From: "Brett Howard" <[EMAIL PROTECTED]> To: "'Mike Harris'" <[EMAIL PROTECTED]>; Sent: Tuesday, August 05, 2008 12:44 PM Subject: RE: [Elecraft] K3 Audio > I'm not exactly sure what it is but with the K1 connected to the RX_OUT jack > then switching to RX_ANT and getting the antenna connected to the K1 I often > find that I prefer the sound of the sigs on the K1 to that of the K3. But > the K3 is a LOT easier to get on freq (I selected the 150Khz bandwidth on my > K1 so the knob is FAST :)) and I also have a lot more options available to > me on the K3 to play with the signal. But I do admit that there are often > times that after playing with the signal on the K3 for a bit I prefer the > way the K1 sounds out of the box. The cool thing about any sort of > shortcoming you find in the K3 is that you never know how long it will be > there. With any other radio you know it'll be there forever. With the K3 > it's kinda like an adventure... HIHI. > > I'm having fun... :) > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Harris > Sent: Tuesday, August 05, 2008 8:45 AM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] K3 Audio > > G'day, > > Had the chance to listen to the Rob Sherwood presentation at Dayton Drake > Forum 2008. Very interesting but he had a couple of rather unflattering > issues with the K3. Looks like the output at both ends of the chain, RF > and AF could be better, particularly the AF. > > Looks like my subjective concerns about the hard audio were not misplaced. > I'm not golden eared but they still work OK. > > Regards, > > Mike VP8NO > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ 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 Audio
I forgot to mention one thing that I found is that running the Dual PB filter actually helps make the K3 sound a lot better in my opinion. The audio on the K3 seems to get kinda harsh at the narrower bandwidths as all the static is all centered into a relatively narrow band of frequencies. But when you turn on the DUAL PB filter things get a bit more toward white noise and a lot less shrill to listen to. I also find that the AFX set to around 3 can help a bit on some sigs too (but only when I'm using my headphones)... I suppose perhaps its time that I look for a good set of passive stereo speakers. -Original Message- From: Brett Howard [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2008 2:48 PM To: 'Jim Miller'; Elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 Audio You know I was thinking that the K1 would have a much narrower AF bandwidth and if I remember right I think I remember seeing some caps in the feedback loop that would cause some stuff like that. But then in the K3 there are all the IF filters and DSP IF filters that should be doing that same thing. I mean I could mess with the RX EQ and narrow it all down around sidetone pitch but I don't find it to make a lot of difference because as I understand it a lot of those frequencies shouldn't be there anyway if you have the filter set pretty narrow. I usually run around 250Hz wide on both rigs when in QSO. And the K3 does have the 250Hz 8-pole filter installed. I also don't really mess with the RX EQ much other than cutting out some of the high stuff that kinda grates on my ears. I find that not to be annoying when ever I listen to voice stuff and that makes for an acceptable all around RX EQ setting. I think that if there are ever per mode RX EQ settings I'll play with that feature more. Congrats on your K3 shipping soon! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Miller Sent: Tuesday, August 05, 2008 12:41 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Audio Down to the single digit figits - hoping for mine to ship in "days". Wouldn't something like this be affected by equalization? 73, Jim - Original Message - From: "Brett Howard" <[EMAIL PROTECTED]> To: "'Mike Harris'" <[EMAIL PROTECTED]>; Sent: Tuesday, August 05, 2008 12:44 PM Subject: RE: [Elecraft] K3 Audio > I'm not exactly sure what it is but with the K1 connected to the RX_OUT jack > then switching to RX_ANT and getting the antenna connected to the K1 I often > find that I prefer the sound of the sigs on the K1 to that of the K3. But > the K3 is a LOT easier to get on freq (I selected the 150Khz bandwidth on my > K1 so the knob is FAST :)) and I also have a lot more options available to > me on the K3 to play with the signal. But I do admit that there are often > times that after playing with the signal on the K3 for a bit I prefer the > way the K1 sounds out of the box. The cool thing about any sort of > shortcoming you find in the K3 is that you never know how long it will be > there. With any other radio you know it'll be there forever. With the K3 > it's kinda like an adventure... HIHI. > > I'm having fun... :) > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Harris > Sent: Tuesday, August 05, 2008 8:45 AM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] K3 Audio > > G'day, > > Had the chance to listen to the Rob Sherwood presentation at Dayton Drake > Forum 2008. Very interesting but he had a couple of rather unflattering > issues with the K3. Looks like the output at both ends of the chain, RF > and AF could be better, particularly the AF. > > Looks like my subjective concerns about the hard audio were not misplaced. > I'm not golden eared but they still work OK. > > Regards, > > Mike VP8NO > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ 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:
Re: [Elecraft] K1: Advice on Options
Dave, A comment on your item #2 - while the VFO in the K1 can be modified to have the bands begin 25 kHz up from the lower band edge, if you do that for one band, then all bands will start up 25 kHz. That is a problem with 30 meters where the normal tuning range begins at 10,100 kHz, and most of the CW operation is between 10,100 and 10,125 kHz. If you move all bands up by 25 kHz, you will not have a usable CW tuning range on 30 meters. Alternately, one could leave the VFO frequency as specified in the manual and order custom crystals to place the start of the band 25 kHz up from normal, but that is an expensive undertaking. Note that the 4 band filter board must include 30 meters as one of its bands. There are only 2 low pass filters on the 4 band board and only 40 and 30 meters plus two bands of the 20m, 17m, 15m set are the only possible choices. The 2 band board can be configured for any 2 bands - 80 thru 15m although there are a few 2 band boards that have been modified to work on 160m and 10 meters. 73, Don W3FPR Dave KQ3T wrote: Hello, all, I'm about to order a K1, and thought I'd ask your opinions about various options and configuration choices. 1. I understand the tuning range can be set to either 75kHz or 150kHz. My inclination is to go with the 75kHz range, for the slower tuning rate. 2. Somewhat related to 1), will I be better off with a range of 7000-7075kHz or 7025-7100kHz, or possibly some other coverage. 3. What are your thoughts on the following options? In particular, are they effective, and are any of them much easier to install during initial assembly (as opposed to being retrofit)? A. KAT1 Antenna Tuner B. KNB1 Noise Blanker C. KBT1 Battery Holder Thanks and 73, Dave KQ3T ___ 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 - http://www.avg.com Version: 8.0.138 / Virus Database: 270.5.12/1592 - Release Date: 8/5/2008 6:03 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
Re: [Elecraft] K3 - Strange problem on 10 Meter SSB with power
Friends, maybe we have to sort problems with SSB power level to permanent problems and temporary problems. Permanent lower level is possible to cure via VCE gain setting (I suppose & hope). Temporary problems are more complicated. I remember my problems with miliwat output levels via KRX3 vith certain version of F/W, when firts (after switching on) SSB TX attempt was 6 - 10dB lower below CW or TUNE level. Just after one dit or dash in CW mode and going back to SSB it was OK, level was like on CW (measured in 2tone test). It was caused by combination of f/w level (maybe corrupted) and using TUN PWR level other then -norm-. Shortly after u/g to 2.10 (if I remember correctly) and switching TUN PWR to -norm- this problem on miliwat output level dissapered. (and now I am using 100mW on ANT port so not checked miliwat KXV3 output intensively during last weeks with newest f/w). Also I am not sure if such kind of temporary problems are also reported with 10W version. (SSB power temporary dropped). Or is it mainly with 100W version? Any other experience with miliwat output? Hope in Elecraft support they are tracking all reports and testing reported behaviour to keep clear picture and plans for possible f/w updates/bug elimination. Maybe will be good to see some more comments from Elecraft support to reduce individual doubts etc... 73! lexa, ok1dst K3/10 #727 Ian Maude napsal(a): Toby Deinhardt wrote: Hi Lyle, I do not know if we all might be talking about various ills with similar symptoms. It might be that more than effect might be behind the various observations, imho. What I have, to the best of my memory, observed in various firmware versions is that there is/was a tendency for the K3 to have lower output in SSB on both(?) sidebands than in CW or tune modes. The output is at times 1dB less and at times 6 or more dB lower. This effect is stronger at lower power levels than at higher and usually occurred after changing the power level request while in SSB. Have you tried setting Config: TXG VCE to 3.0dB? 73 Ian ___ 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] kat100-1/kpa100/kio2 for sale
i have for sale unbuilt kits for use with k2 1 x k2/100 integration kit kpa 100 1 x 150w auto atu kat100-1 1 x host control aux. i/o all these kits are new unopened and untuched cost from the states $737+ shipping & inport vat my price £420 inc postage contact chris [EMAIL PROTECTED] tel. mob 07513496566 ___ 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] Trade my KDSP2 for your KAT2 + $60
I have a built and working KDSP2. If you have an unbuilt or built/working KAT2 and $60 (the kit price difference), I would like to trade. -- 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] Re: K3 Audio
Hi Dave, In the presentation the TX element was not necessarily TX audio quality, rather the less than stellar intermod figure, however, I believe this has been accepted as typical of a low voltage 100W output PA. The RX audio issue, which is probably more important, comes up in the last eight minutes and relates to high levels of distortion in the audio amp, up to and beyond an 11th harmonic at 7kHz. on a CW signal and a 9th order product on two tones only -40dB down. Maybe this explains why, to my ear, even after cropping the high end of passband in DSP at 2400Hz on SSB it still sounds harsh. The junk is apparently being generated post DSP by the af amp. One can only speculate on the consequences of a CW pile-up. The good news is, according to Rob Sherwood, that it is fixable once the cause has been identified. The good news is that the good folks at elecraft are aware of the problem and are presumably on the case. The bad news is it's probably hardware not code. Didn't someone also mention that line output above a certain figure was also distorted. I think the speculation there pointed to the af transformers. Regards, Mike VP8NO - Original Message - From: "Dave G4AON" <[EMAIL PROTECTED]> To: Sent: Tuesday, August 05, 2008 4:55 PM Subject: [Elecraft] Re: K3 Audio |I use TX equalisation with my K3 to improve on my deep gravelly voice. | It sounds far better than my TS-480 with a similar microphone on both | transceivers (Kenwood MC-43S on the K3, stock mic on the '480), the | TS-480 has limited equalisation on TX but even with that it's well below | the quality of the K3 audio which sounds to my ears close to as good as | it's going to get from my voice. Unsolicited reports on the quality of | my K3 TX audio are commonplace and I've never received reports such as | those at any time in my 37 years of operating... I don't think there is | anything wrong with the K3 TX audio. | | On receive the only "quality" receiver I have for comparison is a Drake | R4A and the K3 sounds better than that, and the R4A isn't at all | unpleasant to listen to... The Drake meets specification and has new | smoothing capacitors... The K3 receiver has an open sound which can | sound harsh when combined with a lot of background hash in the form of | white noise from a typical domestic situation where you are surrounded | by houses with computers, switched mode PSUs, etc. Under clean band | conditions that openness sounds great when listening to SSB with the | same DSP bandwidth as the roofing filter (2.8 KHz in my case). I use no | equalisation on receive. | | Bottom line to me is the K3's audio is fine. And no, I'm not on | commission from Elecraft! | | 73 Dave, G4AON | K3/100 #80 | | "Wouldn't something like this be affected by equalization?" ___ 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] KX1 # 2047 comes alive!
Hi Sante: Congratulations on your new KX1 ! If you are talking about a 'random length' long wire antenna, I'm betting you could get away with 66 feet if you lay a 66 foot counterpoise on the ground. The other idea I have is a 135 foot center-fed doublet fed with window line - the small stuff for backpacking would be 300 ohms. You could use the BNC to mini-binding posts connector by Pomona and you should be off to the races ! Have fun ! 73, Jamie WB4YDL -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sante - IK0HBN Sent: Tuesday, August 05, 2008 3:44 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KX1 # 2047 comes alive! Hi everybody, I just finished to assemble my KX1 with autotuner and 30/80 option and I have one question for you: "As the the manual has been written for 20-30 and 40 meters bands, the lenghts for a long wire are given for those bands. How long should it be for having a good compromise even on 80 mtrs? I'd like to have just one wire for backpacking" Thanks in advance Sante, IK0HBN ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Audio
Would be interesting to know the detail of what Rob Sherwood said, but I agree with you, Dave. The tx and rx audio on my K3 sounds cleaner, brighter and clearer to me than my now obsolescent FT1000MP Field even before applying any equalisation. I use either a headset or a couple of small external computer speakers. 73 to all Geoff G3UCK - Original Message - From: "Dave G4AON" <[EMAIL PROTECTED]> To: Sent: Tuesday, August 05, 2008 9:55 PM Subject: [Elecraft] Re: K3 Audio Bottom line to me is the K3's audio is fine. And no, I'm not on commission from Elecraft! 73 Dave, G4AON K3/100 #80 ___ 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 - Strange problem on 10 Meter SSB with power
Temporary problems are more complicated. I remember my problems with miliwat output levels via KRX3 vith certain version of F/W, correction - should be KXV3 my waiting for KRX3 is so intensive :-) L. -dst- ___ 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: recommendations wanted for NR setting
I just completed K3 1162 and am interested in setting its NR to an optimal value for combating summer QRN. I am currently using "F 1--4" with some success, but would like to hear about the settings others prefer. Any other advice on other ways to reduce QRN and back ground noise with K3 features would be welcome, too. 73, Vic-W9RGB ___ 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 - LCD front panel meters for KPA100/KAT100 in EC2
Hey guys, I posted on my blog ( http://blog.kotarak.net/ ) some text and pictures of KPA100/KAT100 in EC2 modification I did a few years ago. I installed a couple of LCD meters on the front panel of the EC2. This is a fun project and easy to do! Its been working just fine all those years. 73 de Andrey, AE1Z ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Audio
If you listen to Sherwood's presentation, you'd hear him state that the distortion problem he discusses occurs only when driving a low impedance (speaker) load. If driving a high Z load like, say, powered speakers, or using headphones, there is no problem. So that might explain your observations. Bob NW8L On Tue, Aug 5, 2008 at 4:29 PM, Geoffrey Downs <[EMAIL PROTECTED]> wrote: > Would be interesting to know the detail of what Rob Sherwood said, but I > agree with you, Dave. The tx and rx audio on my K3 sounds cleaner, brighter > and clearer to me than my now obsolescent FT1000MP Field even before > applying any equalisation. I use either a headset or a couple of small > external computer speakers. > > 73 to all > > Geoff > G3UCK > > - Original Message - From: "Dave G4AON" <[EMAIL PROTECTED]> > To: > Sent: Tuesday, August 05, 2008 9:55 PM > Subject: [Elecraft] Re: K3 Audio > > > >> Bottom line to me is the K3's audio is fine. And no, I'm not on commission >> from Elecraft! >> >> 73 Dave, G4AON >> K3/100 #80 > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Audio
Sherwood's talk is at http://www.sherweng.com/ click on the one at top left ( Roofing Filters, Transmitted BW & Receiver Performnce, Dayton Drake Forum 2008, Slide Show with Audio). It is a wmv movie of his talk. Jerry W4UK At 06:29 PM 8/5/2008, Geoffrey Downs wrote: Would be interesting to know the detail of what Rob Sherwood said, but I agree with you, Dave. The tx and rx audio on my K3 sounds cleaner, brighter and clearer to me than my now obsolescent FT1000MP Field even before applying any equalisation. I use either a headset or a couple of small external computer speakers. 73 to all Geoff G3UCK ___ 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 - Strange problem on 10 Meter SSB with power out
I have previously documented the SSB power drop problem to elecraft and understand it's on Wayne's list to resolve. I used the 2-tone test and adjusted the 2-tone peak power to equal CW TUNE power (using an LP-100A). I found three things trigger the SSB power drop: 1) a power change even if you return to the original power; 2) pressing ATU TUNE, and; 3) a band change. On MCU 2.20 the drop was as little as 15% on 160M and as much as 39% on 10M. All these tests were run at 100 watts requested from the K3. And I am using the 2.7 KHz 5-pole filter. I just loaded MCU 2.23 and re-ran the tests. The results are considerably improved. On 160, 80, 40 and 30M's there was no drop at all. The worst band was 12M (20%). The others were 60M (9%), 20M (3%), 17M (5%), 15M (14%), 10M (11%) and 6M (13%). I spot checked these results with voice input and saw the same results thought clearly not as precise and repeatable as the 2-Tone test. In addition the peak powers on USB and LSB were virtually identical (within 1 watt in every case). I'm not positive if this is an accurate indication as the 2-Tone test help text says to use LSB (not USB). In any case this looks like a significant step forward, so we can hope for continured improvement across all the bands. Chuck, AE4CW Lyle Johnson wrote: > > If you experience this problem (low output on SSB), please check if the > other > sideband works OK, and note if you are using the 2.7 kHz 5-pole filter or > the > 8-pole 2.8 kHz filter. > > Finally, please try the latest beta firmware. > > 73, > > Lyle KK7P/7 > ___ > 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 > > -- View this message in context: http://n2.nabble.com/K3---Strange-problem-on-10-Meter-SSB-with-power-out-tp668377p674953.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] KX1 # 2047 comes alive!
Sante, Although you may be able to load a small antenna on 80 meters, the efficiency will diminish as the antenna gets physically smaller (one cannot defeat the laws of physics). I would suggest that you carry along extensions.that you can clip on to extend the physical length of your radiator to something in the vicinity of 135 feet total (radiator plus "counterpoise"). Whether the extensions are deployed at height or simply strung out near the ground will not make much difference - keep the antenna center high because that is where the major portion of the radiation takes place. Picture a half wave dipole with the center of that half wave at the highest point you can manage. That dipole can be fed at the end, the center, or any point in between with the feedpoint impedance varying from about 50 to 75 ohms (for center fed) to 4000 ohms (for end fed) - you must choose the 'best' arrangement for you depending on what you anticipate your portable physical constraints might be (horizontal space, vertical space, etc.). Consider a vertical radiator as half a dipole - you need radials to complete the dipole - if the radials are physically opposing, the horizontal radiation will cancel and all the radiation will be only vertically polarized - a single radial will result in both vertical and horizontal radiation - either will work, but the distance covered will vary depending on propagation conditions existing at the time. 73, Don W3FPR Sante - IK0HBN wrote: Hi everybody, I just finished to assemble my KX1 with autotuner and 30/80 option and I have one question for you: "As the the manual has been written for 20-30 and 40 meters bands, the lenghts for a long wire are given for those bands. How long should it be for having a good compromise even on 80 mtrs? I'd like to have just one wire for backpacking" Thanks in advance Sante, IK0HBN ___ 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: recommendations wanted for NR setting
I find for weak CW sigs that most of the settings over 1 are a bit much... I find that 1-1 and 3-1 are my two favs. On Tue, 2008-08-05 at 19:18 -0400, Vic Abell wrote: > I just completed K3 1162 and am interested in setting > its NR to an optimal value for combating summer QRN. > I am currently using "F 1--4" with some success, but > would like to hear about the settings others prefer. > > Any other advice on other ways to reduce QRN and back > ground noise with K3 features would be welcome, too. > > 73, > > Vic-W9RGB > > ___ > 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: recommendations wanted for NR setting
Pre Firmware 2.20 I uses AGC SLP 4 and AGC THR 8 to make the K3 sound like the K2 AGC. At least on CW. And used NR F2-4. That worked great at Field Day. Since Firmware 2.20 I cannot find a setting that accomplishes two things Sounds like a K2 and the audio level for NR on & off is about the same And with NR on (most any setting) now the received CW sounds soft, or very slow attack time. At higher speeds it is possible to miss a leading dit in a character. But at this point AGC SLP and THR both equal to 2 works fine (to my ears) with loud and weak signals, but when I turn on NR the received signal goes very soft. If I set NR = F1-1 through F1-3 it isn't too bad. 73HankK8DD - Original Message - From: "Vic Abell" <[EMAIL PROTECTED]> To: Sent: Tuesday, August 05, 2008 7:18 PM Subject: [Elecraft] K3: recommendations wanted for NR setting I just completed K3 1162 and am interested in setting its NR to an optimal value for combating summer QRN. I am currently using "F 1--4" with some success, but would like to hear about the settings others prefer. Any other advice on other ways to reduce QRN and back ground noise with K3 features would be welcome, too. 73, Vic-W9RGB ___ 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 FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop! Check it out at http://www.inbox.com/marineaquarium ___ 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 firmware issue - VFO tuning
I have noticed something strange happening with both of my K3s that I think is a firmware issue. I can reproduce it on both K3s. Currently I am running v2.16 in both but I have tried v2.20 and the problem is still reproducible. NOTE: It is reproducible, but not 100% of the time. Problem: In CW mode - push COARSE tuning - find a signal - push COARSE again to go back to NORMAL tuning. After doing this the VFO is no longer linear. By that I mean the tone jumps a few HZ as if it is jumping in some predetermined step of HZ. It doesn't jump off the signal but it does jump. FIX: If I then push FINE (don't need to tune the VFO) and immediately go back to NORMAL the VFO tunes normally. Smooth tone changes and the step freq jumps are gone. I can create this on both of my K3s. K3 # 1062 K3 #1193 Config settings: VFO CRS: 10 VFO CTS: 100 VFO FST: 50 Has anyone else seen this? I don't remember it being reported and I would expect it would have. 73, Bruce - N1LN (aka: NC4KW) ___ 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: recommendations wanted for NR setting
Its kinda tough for me to give a good A/B comparison. I had the rig for a while then had to ship it back for a bit of work then when it came back I upgraded... I remember the NR working better before I got it back On Tue, 2008-08-05 at 21:23 -0400, hank k8dd wrote: > Pre Firmware 2.20 I uses AGC SLP 4 and AGC THR 8 to > make the K3 sound like the K2 AGC. At least on CW. > And used NR F2-4. That worked great at Field Day. > > Since Firmware 2.20 I cannot find a setting that accomplishes > two things > Sounds like a K2 and the audio level for NR on & off is about > the same > And with NR on (most any setting) now the received CW sounds > soft, or very slow attack time. At higher speeds it is possible to > miss a leading dit in a character. > > But at this point AGC SLP and THR both equal to 2 works fine > (to my ears) with loud and weak signals, but when I turn on NR > the received signal goes very soft. If I set NR = F1-1 through > F1-3 it isn't too bad. > > 73HankK8DD > > > - Original Message - > From: "Vic Abell" <[EMAIL PROTECTED]> > To: > Sent: Tuesday, August 05, 2008 7:18 PM > Subject: [Elecraft] K3: recommendations wanted for NR setting > > > >I just completed K3 1162 and am interested in setting > > its NR to an optimal value for combating summer QRN. > > I am currently using "F 1--4" with some success, but > > would like to hear about the settings others prefer. > > > > Any other advice on other ways to reduce QRN and back > > ground noise with K3 features would be welcome, too. > > > > 73, > > > > Vic-W9RGB > > > > ___ > > 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 > > > > > FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your > desktop! > Check it out at http://www.inbox.com/marineaquarium > ___ > 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] v D1 of the K3 Owner's Manual - Copyright
Even though I'm about as old-fashioned as one gets about reading a real printed book, I find that downloading a copy of an Elecraft manual PDF and storing it someplace I can click on it works out best. I can do SEARCHES in the PDF, which allows me to find all references to a control or whatever. I only print a few select pages if I need a physical copy. My original printed copy has been rendered suspect. Hooray -- keep the changes coming. Yes, and please as updated full manuals, as opposed to add on pages. Paul N4LCD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 Options
Dave - You wrote: 1. I understand the tuning range can be set to either 75kHz or 150kHz. My inclination is to go with the 75kHz range, for the slower tuning rate. I like the slower tuning rate and even that is a bit fast for my taste. 2. Somewhat related to 1), will I be better off with a range of 7000-7075kHz or 7025-7100kHz, or possibly some other coverage. Go down to 7000. There is usually lots of good stuff to work below 25 kHz. Get your extra if you don't have it so you can work the good stuff. 3. What are your thoughts on the following options? In particular, are they effective, and are any of them much easier to install during initial assembly (as opposed to being retrofit)? A. KAT1 Antenna Tuner Definitely worth it if you do portable work. If you already have a small autotuner, like an LDG Z-11 or T1, you can omit it. B. KNB1 Noise Blanker I don't have one, but if you live in an urban area it is probably worth it. C. KBT1 Battery Holder This is not worth it. You can only put 9V worth of batteries in it, so your power out is limited. That will make a difference. Also, if you use rechargeable batteries in it, you need to take the batteries out of the K1 to charge, which is a bit of a nuisance. Use an outboard battery. - Duffey -- KK6MC James Duffey Cedar Crest NM ___ 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 TCXO software
When is the KTCXO software ready for my TCXO in the K3? Ron VK4KDD ___ 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: PF1 ends transmit in DATA A mode
I was using PSK31 in DATA A mode and wanted to enable the speakers, which I have set to PF1. I pressed PF1 and it ended the transmission, but my PSK program was of course unaware that this happened. So I had to abort TX from it and start over. Might it be possible to have the PF keys abort transmission only if appropriate? Pressing the MON/CMP/PWR button to change the modes for the control doesn't abort TX, for example. Leigh/WA5ZNU ___ 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] KRX3
I just finished putting together a K3, I've looked at the manuals, and I have a question. I have identical filters in the main and second receivers. Stock filters plus FL2 2.1kHz and FL3 400Hz. How do I know the roofing filters in the KRX3 are being selected? Are they automatically selected when the roofing filter in the main receiver is picked? I couldn't find any menu that lets me program the filters in the KRX3, so I assume when the main is on the sub is on?? If it is in the manual, where is it?? Is there a way to change the tuning speed of the clarifier without affecting the main dial? I found everything else, but never did find an answer to these questions. Thanks, Tom ___ 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] KRX3
> I just finished putting together a K3, I've looked at the > manuals, and I have a question. > > I have identical filters in the main and second receivers. > Stock filters plus FL2 2.1kHz and FL3 400Hz. > > How do I know the roofing filters in the KRX3 are being > selected? Are they automatically selected when the roofing > filter in the main receiver is picked? > > I couldn't find any menu that lets me program the filters in > the KRX3, so I assume when the main is on the sub is on?? If > it is in the manual, where is it?? > > Is there a way to change the tuning speed of the clarifier > without affecting the main dial? > > I found everything else, but never did find an answer to > these questions. The KRX3 manual explains how to set parameters on the second receiver, including filter settings. The manual is available on the Elecraft web site. The quick answer is to use the BSET hold function on the front panel to configure settings in the second receiver and SUB to enable the sub-receiver. 73, Ed - W0YK ___ 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] KRX3
Hi Tom, I don't have a KRX3 yet (it's backordered), but I've been using a K3 for a while. If you've gone into setup for each filter, told the software what bandwidth filter is in each filter position, and turned each filter on, as you slowly turn bandwidth control you should hear an audibly greater change in the character of the band noise when the roofer kicks in or out. The roofer switches in at whatever frequency you tell the software. You can tell it, for example, that the 400 Hz filter is a 500 Hz filter, and it will kick in at 500 Hz. BTW -- several of us with the capability to measure the filters have found that the 8-pole filters DO have enough slop in their center frequency that you MAY need to shift their centering at bit. My 400 Hz filter is about 45 Hz off, so it was a tossup between 40 and 50 Hz. 73, Jim K9YC On Wed, 6 Aug 2008 00:14:24 -0400, Tom W8JI wrote: >How do I know the roofing filters in the KRX3 are being >selected? Are they automatically selected when the roofing >filter in the main receiver is picked? ___ 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] OT: fan control in MFJ-4225MV switching P/S
Yes, I expect a voltage regulator would work better than a resistor to drop the voltage. Since the fan motor draws more current at startup than when it is running, a contant-voltage source should give more-reliable startup at a lower voltage. But you probably still want to use a thermostat or some other method to switch the fan to full voltage if things get too hot. Al N1AL On Tue, 2008-08-05 at 05:06, Kenneth A. Christiansen wrote: > I used a 5 volt regulator on my MFJ 4225 to slow down the fan. This allows > the fan to start reliably at any voltage. I have run mine and my K2-100 this > way for at least 5 years with no problem on SSB, CW and DIGITAL. > > 73 > Ken W0CZ > > Bill NZ0T Wrote > < > > ___ > 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 - Strange problem on 10 Meter SSB with power
Have you tried setting Config: TXG VCE to 3.0dB? It did not solve the problem. But as I said, at least the recent frimware has been much better. vy 73 de toby ___ 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] KRX3 Arrived.
My KRX3 arrived today. (6th Aug NZST). Ordered with my K3/100 on 4th May 2007. Thanks Elecraft! 73 de Mike, zl1mh. No virus found in this outgoing message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.5.12/1594 - Release Date: 8/5/2008 9:49 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
