Re: [Elecraft] KX1, Removing Underside of Board
Cliff You may have discovered this by now, but in my experience you need to remove the spacers too, not just unscrew them from the front panel. A Happy New Year to you too! 73 Stephen G4SJP On 01/01/2009 04:09, MASH mash4...@mailsent.net wrote: New Year Greeting Everyone: It has been a longtime since I buit the KX1. I turned on the radio to find it would not turn on. The lamp goes on. I am trying to find the fuses. They must be on the underside of the board. I am having trouble removing the board. I removed the 3 screws from the front panel. This still does not remove the board. The keyer connector seems to be sticking. Any advise is welcome on this problem. Happy New Year, Cliff, AC6C ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Katiegram received
Happy new year to the board! I recieved my katiegram for my KRX3 yesterday, 31.12.08. Order date was 17.11.08. So this is truly a very happy new years start :) 73 de Roland, DC1RS -- View this message in context: http://n2.nabble.com/KRX3-Katiegram-received-tp2098638p2098638.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
[Elecraft] Test message
Test - please disregard ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Test Message
This is a test to see if it gets through Happy New Year all 73 Dave KD1NA___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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, Removing Underside of Board
Cliff, The KX1 has no fuses inside, one should always fuse the power cord. The board removes quite easily, but yes, the paddle jack does catch a bit on one side of the enclosure top. Just grasp the paddle jack and pull that side of the board out of the enclosure first, the rest will follow. You can exert a bit of pressure on the enclosure sides to spread it apart a bit, it will spring right back after the pressure is released. No need to remove the standoffs as another poster suggested. 73, Don W3FPR MASH wrote: New Year Greeting Everyone: It has been a longtime since I buit the KX1. I turned on the radio to find it would not turn on. The lamp goes on. I am trying to find the fuses. They must be on the underside of the board. I am having trouble removing the board. I removed the 3 screws from the front panel. This still does not remove the board. The keyer connector seems to be sticking. Any advise is welcome on this problem. Happy New Year, Cliff, AC6C ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k2-100
Ron, I would look for a problem in the KPA100 T/R switch area. Especially be suspect of Q6 and Q7, D11, D12, D13 and D14. While this sounds like a condition when a relay contact is damaged, resist that thought because the K2 and KPA100 transmit/receive switching does not operate any relays, it is entirely electronic. When you say you bypass the antenna around the KPA100 do you mean that you attach the antenna to the base K2 *in place of* the KPA100? please explain better just how you are accomplishing that. Is this a KPA100 mounted externally to the base K2? 73, Don W3FPR ron wrote: more info on problem. bypass antenna around kpa100 problem still there. unhook kio2 from kpa and problem goes away ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 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] KX1, Removing Underside of Board
As Don said, you just need to bend the case out a little to clear the keyer connector. You didn't mention it, but I assume you removed the tuning knob. I had a similar failure to turn on a while ago and found that the switch wasn't working. I just sprayed it with contact cleaner and worked it a few times and it has been ok since. Bernie W1AZ On Wednesday 31 December 2008, MASH wrote: New Year Greeting Everyone: It has been a longtime since I buit the KX1. I turned on the radio to find it would not turn on. The lamp goes on. I am trying to find the fuses. They must be on the underside of the board. I am having trouble removing the board. I removed the 3 screws from the front panel. This still does not remove the board. The keyer connector seems to be sticking. Any advise is welcome on this problem. Happy New Year, Cliff, AC6C -- MASH mash4...@mailsent.net ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - INRAD Filter Sale
Internatinoal Radio puts their filters on sale one a year on new years day. $20.09 off this year. http://www.inrad.net/home.php?cat=140 73 de Joseph Durnal NE3R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: Obscure RTTY bug?
Hi Iain: I was curious to see where this thread was going. I too noticed crackling monitor audio on AFSK A mode. But in my case it was present when the dual passband filter was engaged and disappeared when I was listening with the normal filter. I'm not bothered by the crackling I just hope it is not going out in the transmitted signal. 73, Mike K2MK [Elecraft] Obscure RTTY bug? Iain MacDonnell - N6ML Wed, 31 Dec 2008 14:40:25 -0800 Preparing for the ARRL RTTY Round-Up this weekend, I ran into a strange problem. Using AFSK A mode, feeding transmit audio into the K3's line in from the computer running MMTTY (also tried with DM780, with the same result), I would get a crackling noise along with the RTTY tones in the K3's monitor audio. I don't know if the crackling is transmitted, or just in the monitor. Levels are set for 5 bars on the ALC meter, and the problem occurs in TX TEXT mode. After lots of tearing my hair out (well, at least tearing my cables out and trying other ones), I observed two things that make it go away: 1) Changing to USB (REV DATA) 2) Turning *off* TEXT DEC I recorded the probleml, from line-out, with text decode on and off: http://www.dseven.org/k3/ Why the text decode would cause crackle in the monitor audio, and why not in REV mode, I'm not sure... but I would like to be able to have the decoder turned on... ~Iain / N6ML ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 drift
After 9 months of ageing my K3 # 604, I ran a cold to hot Reference Oscillator Test. My Reference Oscillator is the Optional 1ppm Temp Compensated Crystal Oscillator (KTCXO3-1). This TCXO came with a Factory calibration data sheet which shows frequency verses temperature over a wide range. My Ambient Room Temperature was 72 deg F up to 74 deg F. At turn on (cold) the Reference was adjusted to WWV (15Mhz) and it measured: 49,379,924 Mhz. After 5 min it measured: 49,379,925 Mhz. After 10 min it measured: 49,379,925 Mhz. After 15 min it measured: 49,379,926 Mhz. After 20 min it measured 49,379,928 Mhz. That is an 4Hz shift up in Reference frequency. For the next 14 hours it measured: 49,379,928 Mhz. It looks like it will stay there as long as the Ambient Room Temperature remains near 74 deg F. This is Very impressive and will (can you believe it) get even better when Elecraft enables the 1ppm TCXO Option in Firm Ware. This will (for all practical purposes) eliminate the errors due to temperature changes. The more I use my K3 and the more I learn about it the more I like it. This is a very exciting and satisfying radio. Thanks Elecraft. 73's Ron Durie wb4...@arrl.net ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3/100 and RTTY max power
What is the maximum power I should use on a K3/100 for a RTTY contest such as ARRL RU? Thanks, Michael - N6MEF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Q6 Equivalent part question
I received in my kit a 2SC5739 instead of a 2SC2166 for Q6. Are the parts equivalent? Do I need to get the 2SC2166 from Elecraft for Q6? Thanks! Tom KB3PNU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: Re: [Elecraft] K3 as a SW receiver
How does it sound in PowerSDR SAM mode, with filter adjusted to just inside the adjacent stations? This is how I usually listen to AM broadcasts. Larry N8LP ab2tc wrote: Hello again again, On the issue of using the SSB mode for AM reception, having a look at this spectrum snip from LP-PAN: http://ab2tc.getmyip.com:82/pictures/amreception.jpg Look at that monstrously wide local station at 1490kHz. Using USB mode the distant station at 1500kHz is perfectly copyable, in fact the disco music from 1490 is barely noticeable. No other mode will bring the 1500kHz station through. The K3 has such great suppression of the opposite sideband that there is absolutely no flutter (which is usually a problem with analog radios) when zero beating an AM station. You bet, SSB mode reception of AM stations is a very good option in difficult situations with this radio. ab2tc wrote: Do I get a prize for the first 2009 message (according to the time stamping in the MARC database)? :-). -- View this message in context: http://n2.nabble.com/RE%3AK3-as-a-SW-receiver-tp2095329p2099084.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
[Elecraft] KDVR3 installed now no RF power
I installed the KDVR3 to #191 last night and it appears to work fine (enabled in Config) but I now have very little RF output when connected to a dummy load. The 100w PA doesn't appear to kick in when the power is increased above 12 watts and there is no power output showing on the meter at all. The ATU relays click when activated but no SWR value appears. I'm using the latest firmware and have double checked that all the pins lined up when I reassembled the front panel. At the same time as fitting the KDVR3 I incorporated the speaker amp mod, front panel mic mod (ground pin 7) and the keying rise time mod. After each of these were done I checked resistance as per instructions and all appears fine there and I feel confident that I didn't damage anything else while do these mods (famous last words!). Any advice would be gratefully appreciated about where to check next, later this evening I'll remove the KDVR3 and see what happens. TIA 73 Roger MW0IDX K3 #191 K2 #2724 KX1 #416 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KDVR3 installed now no RF power
You're sure that CONFIG:KPA3 is PA nor? Perhaps you changed CONFIG:KPA3 when you enabled the KDVR3? Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Roger Dallimore Sent: Thursday, January 01, 2009 8:49 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KDVR3 installed now no RF power I installed the KDVR3 to #191 last night and it appears to work fine (enabled in Config) but I now have very little RF output when connected to a dummy load. The 100w PA doesn't appear to kick in when the power is increased above 12 watts and there is no power output showing on the meter at all. The ATU relays click when activated but no SWR value appears. I'm using the latest firmware and have double checked that all the pins lined up when I reassembled the front panel. At the same time as fitting the KDVR3 I incorporated the speaker amp mod, front panel mic mod (ground pin 7) and the keying rise time mod. After each of these were done I checked resistance as per instructions and all appears fine there and I feel confident that I didn't damage anything else while do these mods (famous last words!). Any advice would be gratefully appreciated about where to check next, later this evening I'll remove the KDVR3 and see what happens. TIA 73 Roger MW0IDX K3 #191 K2 #2724 KX1 #416 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 Q6 Equivalent part question
Tom, you missed incorporating the errata to your Owner's manual. The 2SC5739 replaced the 2SC2166. You should have received Errata G-6 dated August 30 with your kit. It has many important changes to the manual. If don't find it, you can download it from the Elecraft web site: http://www.elecraft.com/manual/K2_Errata_Rev_G-6.pdf Ron AC7AC -Original Message- I received in my kit a 2SC5739 instead of a 2SC2166 for Q6. Are the parts equivalent? Do I need to get the 2SC2166 from Elecraft for Q6? Thanks! Tom KB3PNU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - INRAD Filter Sale
Always nice discount on New Years day just wish they would allow you to order out of stock items but then I guess it's an inventory reduction sale! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joseph M. Durnal Sent: Thursday, January 01, 2009 9:36 AM To: Elecraft Reflector Subject: [Elecraft] K3 - INRAD Filter Sale Internatinoal Radio puts their filters on sale one a year on new years day. $20.09 off this year. http://www.inrad.net/home.php?cat=140 73 de Joseph Durnal NE3R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] K1 is looking to go home
Hi Doc, Please contact me soonest. Thank you, and Happy New Year--... ...-- Dale - WC7S in Wy _ Send e-mail anywhere. No map, no compass. http://windowslive.com/oneline/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_anywhere_122008___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - INRAD Filter Sale
Is it better to buy filters from Elecraft, or is INRAD just as good? I think I remember seeing hints in the past that Elecraft was hand-picking some of the filters for low IMD specs, especially the 1.8, which received some negative comments in the most recent QST review. Dave Hachadorian, K6LL Yuma, AZ - Original Message - From: Joseph M. Durnal joseph.dur...@gmail.com To: Elecraft Reflector Elecraft@mailman.qth.net Sent: Thursday, January 01, 2009 2:35 PM Subject: [Elecraft] K3 - INRAD Filter Sale Internatinoal Radio puts their filters on sale one a year on new years day. $20.09 off this year. http://www.inrad.net/home.php?cat=140 73 de Joseph Durnal NE3R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 - INRAD Filter Sale
This was the exact statement in the QST review, Elecraft reported that they are working on developing an improved selection process. I wouldn't read in that they are hand picking. If they are I would like a confirmation. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Hachadorian Sent: Thursday, January 01, 2009 12:21 PM To: Elecraft Reflector Subject: Re: [Elecraft] K3 - INRAD Filter Sale Is it better to buy filters from Elecraft, or is INRAD just as good? I think I remember seeing hints in the past that Elecraft was hand-picking some of the filters for low IMD specs, especially the 1.8, which received some negative comments in the most recent QST review. Dave Hachadorian, K6LL Yuma, AZ - Original Message - From: Joseph M. Durnal joseph.dur...@gmail.com To: Elecraft Reflector Elecraft@mailman.qth.net Sent: Thursday, January 01, 2009 2:35 PM Subject: [Elecraft] K3 - INRAD Filter Sale Internatinoal Radio puts their filters on sale one a year on new years day. $20.09 off this year. http://www.inrad.net/home.php?cat=140 73 de Joseph Durnal NE3R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Re: Finally !
I finally got enough free time to complete my K3 yesterday, run all the final tests, down-load the latest firmware, get it connected in the shack to all the goz-ins and goz-outs. It was well after dark so elected to see what I could hear on 80 meters...First signal I ran across was a QSO between Ron, AE6RH and Eric, KI6IBS where Ron was explaining to Eric what a K3 was. I just had to call him. My first QSO with my K3 was with another K3 - What are the odds? Check off another one #1864 is finally on the air - Clay, K7CR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Obscure RTTY bug?
This sounds exactly like the problem I report to the reflector on 11/23 titled K3 AFSK RTTY overdrive - no ALC. Everyone on the reflector poo-poo'd it as it being a problem on my end. I'm glad to see others come out of the woodwork with the same problem. I haven't tried RTTY since upgrading to the latest firmware to see if it's gotten worse, but the ticking sound would go away when I only used about 2 bars of ALC, but then it was difficult to get the full 100W output. Mine, too, was present in TX TEST mode, so I knew it wasn't a RF issue. In listening to the signal on another receiver the ticking/crackling seems to make the TX signal wider, but that's only by earI don't have a scope. Chad WE9V On Wed, Dec 31, 2008 at 4:39 PM, Iain MacDonnell - N6ML a...@dseven.orgwrote: Preparing for the ARRL RTTY Round-Up this weekend, I ran into a strange problem. Using AFSK A mode, feeding transmit audio into the K3's line in from the computer running MMTTY (also tried with DM780, with the same result), I would get a crackling noise along with the RTTY tones in the K3's monitor audio. I don't know if the crackling is transmitted, or just in the monitor. Levels are set for 5 bars on the ALC meter, and the problem occurs in TX TEXT mode. After lots of tearing my hair out (well, at least tearing my cables out and trying other ones), I observed two things that make it go away: 1) Changing to USB (REV DATA) 2) Turning *off* TEXT DEC I recorded the probleml, from line-out, with text decode on and off: http://www.dseven.org/k3/ Why the text decode would cause crackle in the monitor audio, and why not in REV mode, I'm not sure... but I would like to be able to have the decoder turned on... ~Iain / N6ML ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: Re: [Elecraft] K3 as a SW receiver
PowerSDR in SAM mode sounds great. In all modes the audio from PowerSDR is consistently better than from the K3 using the same headphones. Of course with SAM there is no direct comparison since the K3 still lacks that option. I didn't try, but I bet SAM would loose lock in the situation above. I might try that tonight. N8LP wrote: How does it sound in PowerSDR SAM mode, with filter adjusted to just inside the adjacent stations? This is how I usually listen to AM broadcasts. Larry N8LP snip - AB2TC - Knut -- View this message in context: http://n2.nabble.com/RE%3AK3-as-a-SW-receiver-tp2095329p2099353.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] K2 Q6 Equivalent part question
Tom, Read the Errata sheet please - the explaination is in items 13, 16, 17 and 18. ALWAYS read the errata sheets *first* and make the changes indicated in your manual. 73, Don W3FPR twims...@wimsatt.truepath.com wrote: I received in my kit a 2SC5739 instead of a 2SC2166 for Q6. Are the parts equivalent? Do I need to get the 2SC2166 from Elecraft for Q6? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Ham Radio Deluxe TOR vs RTTY
Question for HRD experts. When operating RTTY with the K3 (FSK D) and using HRD for the logging program, HRD puts TOR in the mode slot in the Add logbook entry window. Have to go into the log and modify the mode to change it to RTTY. Is there a way to fix that in HRD? Thanks, Happy New Year all, Fred KE7X Fred Cady fcady at ieee dot org This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Ham Radio Deluxe TOR vs RTTY
Hi, Yes - you can change the mode, also you can stop HRD from automatically filling in the mode. To edit the log either double-click on an entry *or* use the Bulk Edit option. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Cady, Fred fc...@ece.montana.edu Question for HRD experts. When operating RTTY with the K3 (FSK D) and using HRD for the logging program, HRD puts TOR in the mode slot in the Add logbook entry window. Have to go into the log and modify the mode to change it to RTTY. Is there a way to fix that in HRD? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Two K3s as Carry-on Luggage
I had two K3s and three laptops, plus all the cables, trackballs, etc. in my carry-on luggage. Rose Kopp put some mods on the two K3 cases she made for me so they could be attached to one another and carried with one strap so the airline folks count it as one piece. My other carry-on luggage piece is a roll-about computer bag. I tried running the dual K3 bag through the security X-ray machine and it overloaded the operator. So, we had to run each K3 through by itself. But when done individually, I've never had them ask about it. Most of the X-ray ops ID a K3 as a slide projector, which is fine with me. Ed - P49X (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] KDVR3 installed now no RF power
You're sure that CONFIG:KPA3 is PA nor? Perhaps you changed CONFIG:KPA3 when you enabled the KDVR3? Dick, K6KR Yes, KPA3 is set to PA nor still can't figure out whats going on. Thanks for your reply though. 73 Roger MW0IDX K3 #191 K2 #2724 KX1 #416 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] FM filter - AM transmit with it?
For my K3, I am thinking of getting the general coverage addition KBPF3 and want to get a filter that works well with it so the FM filter seems like it would be best as regards the European broadcast setup. I also would like to be able to transmit on AM but have no filter for that (I presently have the 2.8, 1.0 and 250 filters installed in it). Does having the Inrad 725 installed allow transmit on AMor essb? I don't think it does as on the Elecraft order page it mentions an AM filter for transmit. I'm just double checking here to make sure before ordering an extra filter I might not need. Thanks, Gary KA1J ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: IC718 for sale (K3 is on the way)
A new K3 is on the way and I told the XYL that something will go. The 718 has both the DSP module and the W4RT (QFB-718-CW) 500 Hz Collins Filter installed. Very low hours and was used until I got my K2. The K2 will be my backup rig now. 718 is a 9 out of 10. Original carton shipping USPS in the US is included. $500.00. Paypal preferred. Photos available. Please contact me off list. 73,72 Mike, W9QS EX: KN6TBP (1956), K1DGQ, DL4KM, K5LJN, W9FRR, W9KVF K2, OHR500, Norcal 20, SP1 Fists #12327, FP #268, OOTC #4423, QRPARCI #9521 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] glow on KAt3?
Last night I was at my girlfriend's house and I'd assembled a dipole I made from a pair of short multi band radials from a Butternut made of 300 ohm ribbon line. I placed this around the corners of the living room and was looking for the source of RFI in her house (turned out to be her APEX TV set even when turned off). Though the dipole is resonant on 40M I used the K3 tuner to adjust for 80M. It settled on a 1.6-1 adjustment. I had just moved the new Astron VS-35M PS and must have bumped the crowbar control in that the power to the K3 went out when I started transmitting with a few dits. The voltage on the PS showed zero but the lights were on. I restarted the PS and the voltage went back to normal. I discovered the overcurrent was set very low (it was set for about 5 amps max) and restoring the current setting to the proper location got everything working again. But... before the crowbar tripped I could swear I noticed a glow on the KAT3 through the ventilation slots on the top panel the color was about the same yellow as the LED on the RF board. As there is the shielding around the RF deck from the KPA3, this could not have been light reflected from that diode. The glow looked to be from right about where the sockets for the coax wires attach but on the inside of the ATU. I didn't notice that earlier or after but it did catch my attention just before the power supply cut off. It was New Year's Eve but I hadn't hit the EggNog yet so I'm wondering if there's an issue, something expected or if this was caused by an undigested bit of gruel? The PA seems to be fine as does the KAT3. Are there any checks I might do to see if an error ode of any kind is present? Nothing shows on the display. All seems normal but that localized yellow glow has me wondering. Thanks, Gary KA1J P.S. Happy New Year to everyone! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Obscure RTTY bug?
Kok Chen wrote: The odd thing is that the glitches in Iain's recording appear to occur a cycle or two before a frequency shift. It almost appears to be due to an improperly windowed FIR filter, but it could be caused by anything else... It does seem like something like that, but what I can't get past is the fact that turning off the text decoder makes the problem go away (for me, at least). BTW, occasionally I can start transmitting with the text decoder on, and the problem will not occur, and doesn't seem to start during a transmission, but if I stop and restart, the problem comes back right away. I've also reproduced it at different mark (PITCH) frequencies. I wonder if it could be some sort of resource contention between the decoder and the DSP or something? ~Iain / N6ML ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 Q6 Equivalent part question
Hi Tom, In my K-2 the 2SC5739 turned out to be a bad replacement for the 2SC2166. My modulation was very 'raspy' and no fun to listen to. So I checked everything in the final stage to get rid of this problem. Any time after I started my transmission it sounded good but after a while the modulation became bad again. So the bad modulation could be a heating problem. By checking the 2SC5739 it was so hot, you could not even touch it! The surrounding parts including T2 became hot!!! After changing the 2SC5739 for the intended 2N2166 the problem was gone. Just a warm (not hot) 2N2166 and a good SSB quality. By checking the datasheet from the 2SC5739 it looks like this transistor was developed for video purposes. Just my 2 cents 73 de John pa0wit -Oorspronkelijk bericht- Van: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] Namens twims...@wimsatt.truepath.com Verzonden: donderdag 1 januari 2009 17:17 Aan: elecraft@mailman.qth.net Onderwerp: [Elecraft] K2 Q6 Equivalent part question I received in my kit a 2SC5739 instead of a 2SC2166 for Q6. Are the parts equivalent? Do I need to get the 2SC2166 from Elecraft for Q6? Thanks! Tom KB3PNU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] KRX3 Inventory Question: Foam Pads
I have just inventoried my KRX3 box preparatory to installing it into the K3. All the items on the inventory appear to be as needed, except in the D850334 KRX3 Hardware Bag. I do not have anything labeled E850324, Foam Pads. From the photo, this appears to include two foam strips. What I have instead is an envelope labeled as E980148, which contains one foam strip. Am I headed for a delay, or is only one pad required? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Inventory Question: Foam Pads
Hi Jeff, others ... Only one foam strip in my kit, and it works fine. Just stick it across the center of the rear of the speaker's magnet. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 Inventory Question: Foam Pads
Jeff, I had the same. I cut the strip in two, lengthwise -- et presto - two strips. 73 Arie PA3A --- What I have instead is an envelope labeled as E980148, which contains one foam strip. Am I headed for a delay, or is only one pad required? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] FM filter - AM transmit with it?
Gary, this question has been asked before, 24th May 2007. Eric replied with the following: The short answer is a 'qualified' yes. The wider FM filter can be used for AM transmit and receive, since the DSP limits the AM bandwidth, but there will be two issues. 1. On receive you will be subject to AGC blocking (de-sense) from nearby signals inside the 13 kHz FM filter's bandwidth but outside the DSP's AM bandwidth. (Typically those over S9+20 to 30.) 2. On transmit we will not guarantee that there will not be an increase in close in spurious signals inside the FM filter bandwidth. Normally the AM filter reduces any undesired transmit signals outside of its bandwidth. So for casual AM listening, or AM transmission on a non-crowded band this might be OK. But we recommend the AM filter for any regular AM transmit usage. 73, Eric WA6HHQ Elecraft -- For my K3, I am thinking of getting the general coverage addition KBPF3 and want to get a filter that works well with it so the FM filter seems like it would be best as regards the European broadcast setup. I also would like to be able to transmit on AM but have no filter for that (I presently have the 2.8, 1.0 and 250 filters installed in it). Does having the Inrad 725 installed allow transmit on AMor essb? I don't think it does as on the Elecraft order page it mentions an AM filter for transmit. I'm just double checking here to make sure before ordering an extra filter I might not need. Thanks, Gary KA1J ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: KRX3 Inventory Question: Foam Pads: THANKS!
Thanks to all who responded with information for using the foam included, either by splitting it into two pieces or using it as a single strip. Further inventory checks found a bigger problem in the parts received. The box labeled as containing a 2.8-KHz filter contained instead a 6-KHz filter! Email has been sent to Elecraft for an exchange ASAP. 73, Jeff K8ND -Original Message- From: Jeff Maass [mailto:jma...@k8nd.com] Sent: Thursday, January 01, 2009 3:54 PM To: 'elecraft@mailman.qth.net' Subject: KRX3 Inventory Question: Foam Pads I have just inventoried my KRX3 box preparatory to installing it into the K3. All the items on the inventory appear to be as needed, except in the D850334 KRX3 Hardware Bag. I do not have anything labeled E850324, Foam Pads. From the photo, this appears to include two foam strips. What I have instead is an envelope labeled as E980148, which contains one foam strip. Am I headed for a delay, or is only one pad required? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: FM filter NOT for AM transmit
Despite the recent posting citing a comment from 2007, just the other week, Wayne indicated that you NEED the 6kc filter to transmit AM. http://mailman.qth.net/pipermail/elecraft/2008-December/102373.html de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re: k2-100
more info. low rceive after keying also occurs with kpa100 shut off in menu. should'nt the signal bypass the t/r switch in this mode. k1 and k2 are ok with no power. problem still there with power unhooked to kpa. have kat100 and kpa100 in seperate box. not using kat100 . signal hooks to aux rf in on kat. ron ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: k2-100
Ron, You are correct that the T/R switch is bypassed when the KPA100 is set off in the menu. If I recall your prior post, it behaved correctly with the cable removed from your KIO2 adapter. Leave the KIO2 plugged in and the base K2 with its top cover off. Then when it misbehaves, check the voltage on the 8R voltage rail - easily accessible at Control Board Q2 collector. The normal voltage during receive is 7.5 to 8 volts, and if it is substantially lower, the K2 will not receive well. That is the one signal that is carried to the KPA100 from the base K2 that could reduce receive signal levels. 73, Don W3FPR ron wrote: more info. low rceive after keying also occurs with kpa100 shut off in menu. should'nt the signal bypass the t/r switch in this mode. k1 and k2 are ok with no power. problem still there with power unhooked to kpa. have kat100 and kpa100 in seperate box. not using kat100 . signal hooks to aux rf in on kat. ron ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] re:k2-100
found xv432 causing the problem. it must affect the 8r rail. itwas hooked to same power supply. now to check it out. big thanks to don for his help. ron ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: k2-100
think u4 on control brd is the problem. pwr sply mst have zapped it when it went bad. thanks again to don. ron ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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: KRX3 Inventory Question: Foam Pads
I have the Speaker Pad #E980148 but it is a circular foam pad. My main RF Board also has a red sticker with a couple X's pasted between the FL1 and FL2 slot. Anyone else have this?? I worry about red stickers with X's. Happy New Year. Bob W6VY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SWR readings seem generous
I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Two K3s as Carry-on Luggage
Ed W0YK wrote: Most of the X-ray ops ID a K3 as a slide projector, which is fine with me. Ed - P49X (W0YK) One thoroughly inspected my KX1 and K2 at SFO, then as he was packing it back up, said, Good DX. 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
Re: [Elecraft] Two K3s as Carry-on Luggage
On Thu, Jan 1, 2009 at 17:58, Leigh L. Klotz, Jr WA5ZNU le...@wa5znu.org wrote: Ed W0YK wrote: Most of the X-ray ops ID a K3 as a slide projector, which is fine with me. Ed - P49X (W0YK) One thoroughly inspected my KX1 and K2 at SFO, then as he was packing it back up, said, Good DX. I've taken my K3 as carry-on through numerous airports, without fail, it always gets looked at, swabbed, and then they let me go...I guess I have the thug look or something. Jeff N6GQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Two K3s as Carry-on Luggage
Heh, heh... Hams are *everywhere* When packing stuff that will be x-rayed, it's good to consider the image the screener will see. Years ago, when I was traveling filming documentaries, I unthinkingly packed a brand new Beaulieu motion picture camera in a carry-on case. The Beaulieu had a long zoom lens and a small body behind it with a nice pistol grip underneath. As it ran through the X-ray, the operator stopped the machine, looked, called someone else over and, the next I knew two armed security guards escorted me to a table where I was instructed to open the case. And this was long before 9/11. On the Xray, it looked exactly like some sort of automatic weapon. After we totally disassembled the camera and they peered inside every part, I was allowed to continue. On subsequent flights I was careful to ask the people to inspect the contents visually. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jeff Kinzli N6GQ Sent: Thursday, January 01, 2009 6:02 PM To: Leigh L. Klotz, Jr WA5ZNU Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Two K3s as Carry-on Luggage On Thu, Jan 1, 2009 at 17:58, Leigh L. Klotz, Jr WA5ZNU le...@wa5znu.org wrote: Ed W0YK wrote: Most of the X-ray ops ID a K3 as a slide projector, which is fine with me. Ed - P49X (W0YK) One thoroughly inspected my KX1 and K2 at SFO, then as he was packing it back up, said, Good DX. I've taken my K3 as carry-on through numerous airports, without fail, it always gets looked at, swabbed, and then they let me go...I guess I have the thug look or something. Jeff N6GQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SWR readings seem generous
Mike, I have to accept your observations, but must ask - have you calibrated the K3 wattmeter? Neglecting to do that can cause the SWR readings to be off by a fair amount. That being said, consider the purpose of the K3 having an SWR indication at all - that is to determine the minimum SWR during a TUNE cycle. The *minimum* SWR is the important parameter to indicate the best tuning point rather than any absolute SWR reading. Long ago when using manual tuners, my elmer told me to simply tune for the lowest reflected power possible, and that was the correct tuning point. The KAT3 tuner algorithm does the same thing - it seeks the minimum reflected power - the absolute SWR is not important, although it may be of interest. Even so, the K3 SWR indication on your K3 does seem to be lower than it should be. Again, if you have not done the Wattmeter Calibration, that would be a step in the right direction. 73, Don W3FPR Mike Scott wrote: I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Differenced Between Filter KFL3A-2.8_2.7sw and KFL3A-2.8K?
I was planning to take a block of hours tomorrow to add the KRX3 to my K3/100. One of the things to do is to replace the 2.7-KHz filter with the 8-pole 2.8-KHz filter in the main receiver. I have one KFL3A-2.8K that I ordered a while ago for this purpose. Now I see from the Elecraft order page that there is the note: Order KFL3A-2.8_2.7sw instead if replacing 2.7 kHz stock filter. Does anyone know what the different is between KFL3A-2.8K and KFL3A-2.8_2.7sw? Should I wait to get a KFL3A-2.8_2.7sw to swap out the old filter in the main receiver? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Differenced Between Filter KFL3A-2.8_2.7sw andKFL3A-2.8K?
Hi Jeff, From the order page: KFL3A-2.8_2.7sw 2.8 kHz 8-pole REPLACEMENT of the standard 2.7 kHz 5 pole filter (For the K3 and /or the KRX3 - Only at time of initial shipment of the K3 or KRX3. Please state if the replacement 2.8 kHz filter applies to the K3, KRX3 or both in the order comments section. Two of this item must be ordered if for K3 and KRX3.) In other words, if you order a K3 or KRX3 (which come with the 2.7 kHz filter by default) and you want them to replace the standard 2.7 kHz filter in your order with the 2.8 kHz filter, the lower price ($95.95) can be had if you indicate this in your original order. If you order the 2.8 kHz filter separately, as you apparently did, the price is $125.95. There is no technical difference between the filters, just the price. So you can safely replace the 2.7 kHz filter with the 2.8 kHz filter that you have. Bill W5WVO Jeff Maass wrote: I was planning to take a block of hours tomorrow to add the KRX3 to my K3/100. One of the things to do is to replace the 2.7-KHz filter with the 8-pole 2.8-KHz filter in the main receiver. I have one KFL3A-2.8K that I ordered a while ago for this purpose. Now I see from the Elecraft order page that there is the note: Order KFL3A-2.8_2.7sw instead if replacing 2.7 kHz stock filter. Does anyone know what the different is between KFL3A-2.8K and KFL3A-2.8_2.7sw? Should I wait to get a KFL3A-2.8_2.7sw to swap out the old filter in the main receiver? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Differenced Between Filter KFL3A-2.8_2.7sw and KFL3A-2.8K?
There is a 2.7 kHz filter and a 2.8 kHz filter. The KFL3A-2.8_2.7sw is an order entry item for people that wish to order a K3 with (just) the 2.8 kHz filter instead of the 2.7 kHz filter that normally comes with a K3. It's a swap order item. If you order a K3, and then order a separate 2.8 kHz filter, you'd pay $125.95 for the 2.8 kHz filter and you'd have an extra 2.7 kHz left over. If instead you order the KFL3A-2.8_2.7sw at the time you order your K3, it'll come with just the 2.8 kHz filter, and the 2.8 kHz filter upgrade costs $95.95. They won't send the stock 2.7 kHz filter. But you have to arrange this swap before your K3 or KRX3 is shipped. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jeff Maass Sent: Thursday, January 01, 2009 7:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Differenced Between Filter KFL3A-2.8_2.7sw and KFL3A-2.8K? I was planning to take a block of hours tomorrow to add the KRX3 to my K3/100. One of the things to do is to replace the 2.7-KHz filter with the 8-pole 2.8-KHz filter in the main receiver. I have one KFL3A-2.8K that I ordered a while ago for this purpose. Now I see from the Elecraft order page that there is the note: Order KFL3A-2.8_2.7sw instead if replacing 2.7 kHz stock filter. Does anyone know what the different is between KFL3A-2.8K and KFL3A-2.8_2.7sw? Should I wait to get a KFL3A-2.8_2.7sw to swap out the old filter in the main receiver? 73, Jeff K8ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] THANKS! RE: Differenced Between Filter KFL3A-2.8_2.7sw and KFL3A-2.8K?
Thanks to all who replied. I understand now that the separate price for initial orders to account for the swapping of the standard 2.7-KHz part with the 2.8-KHz part. When I ordered my K3/100 (s/n 1192), the 2.8-KHz filters were backordered. This predated the separate part numbers. The 2.8-KHz filter for the K3 main receiver was received here a while ago as the backorder cleared, but has not yet been installed. I just wanted to make sure that I can still swap in that part while I'm also installing the KRX3. KRX3 installation tomorrow (Friday)! 73, Jeff K8ND -Original Message- From: Jeff Maass [mailto:jma...@k8nd.com] Sent: Thursday, January 01, 2009 10:37 PM To: 'elecraft@mailman.qth.net' Subject: Differenced Between Filter KFL3A-2.8_2.7sw and KFL3A-2.8K? I was planning to take a block of hours tomorrow to add the KRX3 to my K3/100. One of the things to do is to replace the 2.7-KHz filter with the 8-pole 2.8-KHz filter in the main receiver. I have one KFL3A-2.8K that I ordered a while ago for this purpose. Now I see from the Elecraft order page that there is the note: Order KFL3A-2.8_2.7sw instead if replacing 2.7 kHz stock filter. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SWR readings seem generous
I noticed the same thing. My factory-assembled K3 is reading 1.0 SWR while my LP-100A and tuner both agree on about 1.4-1.5. Michael - N6MEF -- Message: 45 Date: Thu, 1 Jan 2009 17:47:04 -0800 From: Mike Scott m...@paxsen.com Subject: [Elecraft] k3 SWR readings seem generous To: Elecraft@mailman.qth.net Message-ID: 7a956b0039b848bd89a04d31855c4...@dbqj5v71 Content-Type: text/plain; charset=us-ascii I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SWR readings seem generous
Isn't the LP100A giving you the actual SWR, not the tuned SWR since the LP100A is getting current samples from the feedline to the antenna and is independent of the K3 tuner. The K3 tuner is making the K3 see 50 ohms. The LP100 is telling you the actual SWR that exists prior to the K3 tuning it to the 50 ohm. I have the LP100 using it with a SteppIR BiggIR vertical and also a Gap Voyager vertical for 160m and 80m. The LP100 reads around 1.04:1 on the SteppIR on 40m as does the K3 (shows 1 bar), which is close to what my old Diamond meter use to read. However, the Gap SWR is around the 2.3:1 range when the K3 (or PW-1 tuner) reads about 1.5:1 or less. I then realized it was showing me the real SWR, not the tuned SWR. I think I am correct in this assumption. John K8WDN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael E Fox (N6MEF) Sent: Friday, January 02, 2009 1:18 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] k3 SWR readings seem generous I noticed the same thing. My factory-assembled K3 is reading 1.0 SWR while my LP-100A and tuner both agree on about 1.4-1.5. Michael - N6MEF -- Message: 45 Date: Thu, 1 Jan 2009 17:47:04 -0800 From: Mike Scott m...@paxsen.com Subject: [Elecraft] k3 SWR readings seem generous To: Elecraft@mailman.qth.net Message-ID: 7a956b0039b848bd89a04d31855c4...@dbqj5v71 Content-Type: text/plain; charset=us-ascii I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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] Order of assembly K3 Options
I ordered the KXV3 with the K3/100 to assemble at the time of purchase but it was back-ordered at the time of shipment and it arrived this week. I have the KRX3 on order and it will be ready for shipment fairly soon. I am going to order the KBPF3 general coverage module and the 1ppm KTCXO3-1 TCXO module to be sent asap if they are in stock. I found some of the connectors resistant to insertion when putting the K3/100 together. For instance; the ones where you needed to use your thumbs under the RF board to prevent the board from twisting during insertion; I had to use a fair amount of force to get these sockets fully engaged and they usually went in with a snap. Indeed all the pins were full mated and all assemblies installed 100%. Considering the deliberate latching when inserted, these connectors are re-assuringly secured in place but I remember thinking to myself, 'I do not look foreward to removing them when I wish to add another module.' So I don't want to keep removing and replacing parts back there. There is one port in the back marked REF, which now has a plastic plug in place. I don't know if the connector that goes in there is part of the sub receiver as no such connector is with the KXV3 and I seem to have missed mention of it with the assembly of the K3/100 but it looks to be tucked in a freely in-accessible area so perhaps it is part of the RX sub? I'd like to install the KRX3 asap but will hold off if I need to remove the boards above the REF port. So from those of you with experience in installing these modules in an already assembled K3/100, in which order should the following modules should be installed so I do not have to remove reinstall these various strip connectors more often than necessary? Again, the modules to be installed at this point are: KXV3 (now at the QTH ready for installation) KRX3 (on back-order) KBPF3 gen coverage (to be ordered asap) 1ppm KTCXO3-1 TCXO (to be ordered asap) Thanks, Gary KA1J ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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 SWR readings seem generous
I forgot to mention. I do not use the ATU on my K3 on 40m since I have the SteppIR BiggIR vertical, and the K3 SWR reading shows only 1 bar which tells me it is seeing 1:1 SWR which is close to the LPA100 reading of 1.04:1. The LP100 just shows the unvarnished truth sometimes about the actual antenna resonance. It is a great tool. John K8WDN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Gaynard Sent: Friday, January 02, 2009 2:24 AM To: 'Michael E Fox (N6MEF)'; elecraft@mailman.qth.net Subject: RE: [Elecraft] k3 SWR readings seem generous Isn't the LP100A giving you the actual SWR, not the tuned SWR since the LP100A is getting current samples from the feedline to the antenna and is independent of the K3 tuner. The K3 tuner is making the K3 see 50 ohms. The LP100 is telling you the actual SWR that exists prior to the K3 tuning it to the 50 ohm. I have the LP100 using it with a SteppIR BiggIR vertical and also a Gap Voyager vertical for 160m and 80m. The LP100 reads around 1.04:1 on the SteppIR on 40m as does the K3 (shows 1 bar), which is close to what my old Diamond meter use to read. However, the Gap SWR is around the 2.3:1 range when the K3 (or PW-1 tuner) reads about 1.5:1 or less. I then realized it was showing me the real SWR, not the tuned SWR. I think I am correct in this assumption. John K8WDN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael E Fox (N6MEF) Sent: Friday, January 02, 2009 1:18 AM To: elecraft@mailman.qth.net Subject: RE: [Elecraft] k3 SWR readings seem generous I noticed the same thing. My factory-assembled K3 is reading 1.0 SWR while my LP-100A and tuner both agree on about 1.4-1.5. Michael - N6MEF -- Message: 45 Date: Thu, 1 Jan 2009 17:47:04 -0800 From: Mike Scott m...@paxsen.com Subject: [Elecraft] k3 SWR readings seem generous To: Elecraft@mailman.qth.net Message-ID: 7a956b0039b848bd89a04d31855c4...@dbqj5v71 Content-Type: text/plain; charset=us-ascii I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, 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:
