Re: [Elecraft] Wow, Elecraft charges a lot for shipping!
This thread is probably just about over- I ship using USPS Priority Mail almost exclusively. Small box = $5.25* Medium box = $11.30* Large box = $15.80* *If you pay online - a bit more if you pay at the PO Priority Mail is 2-day delivery which translates to 3-day in Alaska (it gets to the Anchorage Airport Sort Center in 2-days and is delivered by truck 180mi to my PO the next day). But I allow up to 5-days delivery time for Priority Mail out of AK for my customers. Parcel Post takes a min of 18-days and usually 20-days. Overnite Express Letter - takes two days! UPS/Fedex 2-day delivery for the same item in AK is about 2x to 3x as expensive (of course shipping in/out of AK requires using a NASA Launch to the nearest planet). Guess what it still takes 3-days with them, too! I ship world-wide using flat-rate International Priority Mail (even to Canada which costs more than within the 50-states). Medium box to UK or EU is $76.50 vs $19.30 inside the US ($8 added for $500 insurance). So you guys in the lower-48 got nothing to bellyache about cost of shipping. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [KX3] CW +SSB with external transverter problem
Scenario: KX3 with external transverter and amplifier on 144MHz. (Transverter RX/TCswitched from KX3 keyline out). Wish to use CW+SSB feature where hitting the key in SSB mode transmits CW. This is an option in the CW WGHT menu, selected by tapping 1. CW in SSB is something that is used on VHF DX where fading sometimes means having to quickly switch to CW from SSB during a QSO. Result: Tapping the key in SSB mode now keys the PTT line to transverter at the keying rate, irrespective of DLY setting or whether VOX or PTT is selected. So it cannot be be used as the relay switching in the transverter and amplifier is not capable of switching at the CW keying rate. Questions: Is this how this feature was meant to work? Could it be altered so that the CW VOX delay is honoured when using CW in SSB mode? This would then allow the feature to be useful with external PTT (Keyline) driven transverters. Many thanks, 73 David Anderson GM4JJJ 73 David Anderson GM4JJJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] CW +SSB with external transverter problem
One further note, I am using an external keyer, not the KX3 internal keyer. I just tried the internal keyer and it does work as I would expect. 73 David Anderson GM4JJJ > On 1 Sep 2015, at 11:25, David Anderson wrote: > > Scenario: > > KX3 with external transverter and amplifier on 144MHz. (Transverter > RX/TCswitched from KX3 keyline out). > Wish to use CW+SSB feature where hitting the key in SSB mode transmits CW. > This is an option in the CW WGHT menu, selected by tapping 1. > CW in SSB is something that is used on VHF DX where fading sometimes means > having to quickly switch to CW from SSB during a QSO. > > Result: > > Tapping the key in SSB mode now keys the PTT line to transverter at the > keying rate, irrespective of DLY setting or whether VOX or PTT is selected. > > So it cannot be be used as the relay switching in the transverter and > amplifier is not capable of switching at the CW keying rate. > > Questions: > > Is this how this feature was meant to work? > > Could it be altered so that the CW VOX delay is honoured when using CW in SSB > mode? This would then allow the feature to be useful with external PTT > (Keyline) driven transverters. > > Many thanks, > > 73 > > David Anderson GM4JJJ > > > > > > > > > > > > > 73 > > David Anderson GM4JJJ > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gm4...@yahoo.co.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Thank you Jim, I'd expect if my signal was being overdriven that someone would tell me so I could fix it *shrug*. Anyway... I think this has been covered pretty well. Thanks for all the responses. Jer -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Monday, August 31, 2015 11:14 PM Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S IMD Questions On Mon,8/31/2015 10:04 AM, Yngvi (TF3Y) wrote: > Even though I'm personally most interested in CW I wonder if there is > any recent two tone SSB tests that's been published? I've published some SSB bandwidth measurements using pink noise as excitation. Because pink noise contains all frequencies, the spectra resembles music and speech, and is dynamic, it excites IMD in a manner comparable to speech. http://k9yc.com/P3_Spectrum_Measurements.pdf http://k9yc.com/FTDX5000_Report.pdf So far, I've measured only a few rigs using pink noise, but of those I've measured, I've seen very little difference between them. On the air is a very different story -- it's VERY common to see distortion on SSB signals in the form of both upper and lower sidebands on audio peaks. Because it is present in both sidebands, I strongly suspect it's caused by power amps that are over-driven, or poorly tuned, or improperly biased. We hear it as splatter (sometimes as wide as 10-20 kHz), and see it on the P3 and horizontal lines corresponding to audio peaks. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to je...@carolinaheli.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Check your HRD configuration in the sound card settings: HRD/DM780/Options/Soundcard - verify the output transmit device shows the K3S sound card. Also in your windows mixer ensure that the volume slider is up. Jerry Moore AE4PB -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Steve Muenich Sent: Monday, August 31, 2015 11:45 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3S trouble doing PSK31 w DM780 Hi all, It's my first time posting to this group as I recently got my K3S #10121 on the air. I have been really enjoying playing with it on SSB and CW. I use HRD as my logging and rig control. But over the last couple of nights I have been trying to get on the digital modes, mostly PSK31 at first. Im using the USB interface to PC, I have good rx and I am decoding PSK fine. Problem is when I go to TX. I have PTT with rf power out and monitor audio as I hear data but No ALC indication at all. K3S is in Data mode. I hear good and when I try to answer CQ no one ever responds. Any suggestions as to what I am doing wrong? Thanks in advance. 73 Steve, NA5C Sent from my mobile device __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to je...@carolinaheli.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Thanks Jim. This is COOL. 73, Yngvi TF3Y On Tue, Sep 1, 2015 at 3:13 AM, Jim Brown wrote: > On Mon,8/31/2015 10:04 AM, Yngvi (TF3Y) wrote: > >> Even though I'm personally most interested in CW I wonder if there is any >> recent two tone SSB tests that's been published? >> > > I've published some SSB bandwidth measurements using pink noise as > excitation. Because pink noise contains all frequencies, the spectra > resembles music and speech, and is dynamic, it excites IMD in a manner > comparable to speech. > > http://k9yc.com/P3_Spectrum_Measurements.pdf > > http://k9yc.com/FTDX5000_Report.pdf > > So far, I've measured only a few rigs using pink noise, but of those I've > measured, I've seen very little difference between them. > > On the air is a very different story -- it's VERY common to see distortion > on SSB signals in the form of both upper and lower sidebands on audio > peaks. Because it is present in both sidebands, I strongly suspect it's > caused by power amps that are over-driven, or poorly tuned, or improperly > biased. We hear it as splatter (sometimes as wide as 10-20 kHz), and see it > on the P3 and horizontal lines corresponding to audio peaks. > > > 73, Jim K9YC > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to t...@tf3y.net > -- http://www.tf3y.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Could someone who fully understands Transmitter specs/imd..etc help me out a bit off reflector (don't to bore folks). The thread on eham is http://www.eham.net/ehamforum/smf/index.php/topic,104725.60.html I have no idea what the guy is talking about. As far as I can tell there's no issue but I honestly don't know enough about the subject. All help and education is appreciated. Jerry Moore AE4PB, Future K3S, 4 days and a wakeup. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] CW +SSB with external transverter problem
You need to set the VOX Delay while in the CW mode, to a long enough time to keep the transverter from dropping out. You'll likely want to reset that if you go back to CW operation without the transverter. Also, it was a relatively recent firmware version that fixed the problem. Be sure you have the latest version. 73 - Jim K8MR -Original Message- From: David Anderson To: Elecraft Reflector Sent: Tue, Sep 1, 2015 6:38 am Subject: Re: [Elecraft] [KX3] CW +SSB with external transverter problem One further note, I am using an external keyer, not the KX3 internal keyer. I just tried the internal keyer and it does work as I would expect. 73 David Anderson GM4JJJ > On 1 Sep 2015, at 11:25, David Anderson wrote: > > Scenario: > > KX3 with external transverter and amplifier on 144MHz. (Transverter RX/TCswitched from KX3 keyline out). > Wish to use CW+SSB feature where hitting the key in SSB mode transmits CW. This is an option in the CW WGHT menu, selected by tapping 1. > CW in SSB is something that is used on VHF DX where fading sometimes means having to quickly switch to CW from SSB during a QSO. > > Result: > > Tapping the key in SSB mode now keys the PTT line to transverter at the keying rate, irrespective of DLY setting or whether VOX or PTT is selected. > > So it cannot be be used as the relay switching in the transverter and amplifier is not capable of switching at the CW keying rate. > > Questions: > > Is this how this feature was meant to work? > > Could it be altered so that the CW VOX delay is honoured when using CW in SSB mode? This would then allow the feature to be useful with external PTT (Keyline) driven transverters. > > Many thanks, > > 73 > > David Anderson GM4JJJ > > > > > > > > > > > > > 73 > > David Anderson GM4JJJ > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gm4...@yahoo.co.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jimk...@aol.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Are you getting any power output at all? Switch the meter from ALC to power output and see if you have anything. I had a similar problem and ended up using USB mode, but then I had to change the CONFIG to select the rear panel line in (I use the signal link USB through line-in and line-out.) I don't know about your K3S and USB. But I'm sure it's misconfigured somewhere. Good luck. -Chris K1AY On Mon, Aug 31, 2015 at 11:44 PM, Steve Muenich wrote: > Hi all, > > It's my first time posting to this group as I recently got my K3S #10121 > on the air. I have been really enjoying playing with it on SSB and CW. > I use HRD as my logging and rig control. But over the last couple of > nights I have been trying to get on the digital modes, mostly PSK31 at > first. > Im using the USB interface to PC, I have good rx and I am decoding PSK > fine. Problem is when I go to TX. I have PTT with rf power out and monitor > audio as I hear data but No ALC indication at all. K3S is in Data mode. > I hear good and when I try to answer CQ no one ever responds. > > Any suggestions as to what I am doing wrong? > > Thanks in advance. > > 73 > Steve, NA5C > > __ > Elecraft mailing list > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Just checked my system with HRD/DM780. Radio MODE set for TX Data. MENU for MIC SEL set for Line In and value about 10 to 20. Set computer SPEAKERS value for about 20 to 30. Be sure correct CODEC is selected in DM-780. Adjust slider on HRD/DM780 Soundcard for about 4 bars of ALC on radio. Slider value about 75. Set PWR output on radio for 50 watts. Be sure nothing is connected to Line IN on rear of radio. I only use the single USB cable between computer and radio. All works for me. 73 Bob, K4TAX K3S s/n 10,163 On 9/1/2015 8:17 AM, Chris Hallinan wrote: Are you getting any power output at all? Switch the meter from ALC to power output and see if you have anything. I had a similar problem and ended up using USB mode, but then I had to change the CONFIG to select the rear panel line in (I use the signal link USB through line-in and line-out.) I don't know about your K3S and USB. But I'm sure it's misconfigured somewhere. Good luck. -Chris K1AY On Mon, Aug 31, 2015 at 11:44 PM, Steve Muenich wrote: Hi all, It's my first time posting to this group as I recently got my K3S #10121 on the air. I have been really enjoying playing with it on SSB and CW. I use HRD as my logging and rig control. But over the last couple of nights I have been trying to get on the digital modes, mostly PSK31 at first. Im using the USB interface to PC, I have good rx and I am decoding PSK fine. Problem is when I go to TX. I have PTT with rf power out and monitor audio as I hear data but No ALC indication at all. K3S is in Data mode. I hear good and when I try to answer CQ no one ever responds. Any suggestions as to what I am doing wrong? Thanks in advance. 73 Steve, NA5C __ Elecraft mailing list __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Steve, Make sure the data sub-mode is DATA A. Do you have anything connected to the Line In jack? The USB audio in is disabled if there is a plug in the Line In jack. Adjust the slider on the computer soundcard control to about 2/3 of full and then adjust the K3S Line In (Mic gain used in DATA mode) to produce 4 bars solid with the 5th bar flickering on the ALC meter - you can do that in TX TEST mode so no RF is transmitted. 73, Don W3FPR On 8/31/2015 11:44 PM, Steve Muenich wrote: Hi all, It's my first time posting to this group as I recently got my K3S #10121 on the air. I have been really enjoying playing with it on SSB and CW. I use HRD as my logging and rig control. But over the last couple of nights I have been trying to get on the digital modes, mostly PSK31 at first. Im using the USB interface to PC, I have good rx and I am decoding PSK fine. Problem is when I go to TX. I have PTT with rf power out and monitor audio as I hear data but No ALC indication at all. K3S is in Data mode. I hear good and when I try to answer CQ no one ever responds. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 - SVGA Monitor Compatibility Suggestions
I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately I get the two black bars on each side of the screen when I set the resolution to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all four sides). I had read somewhere that the black bars indicated that there was a compatibility issue with the monitor frequency and the P3 SVGA. If I change the resolution to 1440 x 900 it fills the screen, but clips the data on the bottom and the text is too big (I adjusted the text size as small as available). Can anyone suggest a compatible monitor or brand of monitors? I like the Samsung, but I would prefer a monitor that can utilize the entire screen. Thanks. 73, Marty - K1MTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Steve, Make sure there is nothing plugged into Line In on the rear panel. If a cable is plugged in there, the USB codec is bypassed in favor of Line In for your TX audio source. 73, matt W6NIA On Mon, 31 Aug 2015 22:44:32 -0500, you wrote: >Hi all, > >It's my first time posting to this group as I recently got my K3S #10121 on >the air. I have been really enjoying playing with it on SSB and CW. >I use HRD as my logging and rig control. But over the last couple of nights I >have been trying to get on the digital modes, mostly PSK31 at first. >Im using the USB interface to PC, I have good rx and I am decoding PSK fine. >Problem is when I go to TX. I have PTT with rf power out and monitor audio as >I hear data but No ALC indication at all. K3S is in Data mode. >I hear good and when I try to answer CQ no one ever responds. > >Any suggestions as to what I am doing wrong? > >Thanks in advance. > >73 >Steve, NA5C > > > >Sent from my mobile device >__ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to mzil...@roadrunner.com Matt Zilmer, W6NIA -- "Always store beer in a dark place." -R. Heinlein __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] CW +SSB with external transverter problem
Hi Jim, thanks for replying. I am running the latest firmware and I do have VOX delay set in CW mode. However the 'bug' appears to only affect keying with external keyer, and works fine with the internal KX3 keyer. Slightly annoying as I prefer to use my old CMOS superkeyer to anything else because I am familiar with it and like its timing. 73 David Anderson GM4JJJ > On 1 Sep 2015, at 13:53, jimk...@aol.com wrote: > > You need to set the VOX Delay while in the CW mode, to a long enough time to > keep the transverter from dropping out. You'll likely want to reset that if > you go back to CW operation without the transverter. > > Also, it was a relatively recent firmware version that fixed the problem. Be > sure you have the latest version. > > > 73 - Jim K8MR > > > -Original Message- > From: David Anderson > To: Elecraft Reflector > Sent: Tue, Sep 1, 2015 6:38 am > Subject: Re: [Elecraft] [KX3] CW +SSB with external transverter problem > > One further note, I am using an external keyer, not the KX3 internal keyer. I > just tried the internal keyer and it does work as I would expect. > > 73 > > David > Anderson GM4JJJ > > > On 1 Sep 2015, at 11:25, David Anderson > wrote: > > > > Scenario: > > > > KX3 with external > transverter and amplifier on 144MHz. (Transverter RX/TCswitched from KX3 > keyline > out). > > Wish to use CW+SSB feature where hitting the key in SSB mode transmits > CW. This is an option in the CW WGHT menu, selected by tapping 1. > > CW in SSB > is something that is used on VHF DX where fading sometimes means having to > quickly switch to CW from SSB during a QSO. > > > > Result: > > > > Tapping the > key in SSB mode now keys the PTT line to transverter at the keying rate, > irrespective of DLY setting or whether VOX or PTT is selected. > > > > So it > cannot be be used as the relay switching in the transverter and amplifier is > not > capable of switching at the CW keying rate. > > > > Questions: > > > > Is this how > this feature was meant to work? > > > > Could it be altered so that the CW VOX > delay is honoured when using CW in SSB mode? This would then allow the feature > to be useful with external PTT (Keyline) driven transverters. > > > > Many > thanks, > > > > 73 > > > > David Anderson GM4JJJ > > > > > > > > > > > > > > > > > > > > > > > > > > > 73 > > > > David Anderson GM4JJJ > > > __ > > Elecraft > mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: > http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html > > Message delivered to > gm4...@yahoo.co.uk > __ > Elecraft > mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: > http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This > list hosted by: http://www.qsl.net > Please help support this email list: > http://www.qsl.net/donate.html > Message delivered to jimk...@aol.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions
You should be able to adjust the monitor settings to fully fill the screen. It's common and typical to tweak the monitor settings for full screen viewing. If the video card were incompatible the image would be unusable and appear scrambled or not appear at all. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Marty Sent: Tuesday, September 01, 2015 10:49 AM To: elecraft@mailman.qth.net Subject: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately I get the two black bars on each side of the screen when I set the resolution to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all four sides). I had read somewhere that the black bars indicated that there was a compatibility issue with the monitor frequency and the P3 SVGA. If I change the resolution to 1440 x 900 it fills the screen, but clips the data on the bottom and the text is too big (I adjusted the text size as small as available). Can anyone suggest a compatible monitor or brand of monitors? I like the Samsung, but I would prefer a monitor that can utilize the entire screen. Thanks. 73, Marty - K1MTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to je...@carolinaheli.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
I have been playing with a Flex 6300 here in my shack recently. I consider it a great piece of test equipment for analyzing signals in the shack as well as on the air. It does everything and more, as a spectrum analyzer, that my old HP141 analog setup did, except it doesn't have a tracking generator. My measurements are not completed and I am still experimenting, but here is what I've done so far. Phase noise, cw transmitted bandwidth, and 2 tone IMD tests. My two rigs are a K3/100 and an FT100D (how good, and how bad can you get!) Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal into it, keeping the level just under 0 dbm, and assuming it is not generating imd of its own, but I haven't quantified that yet. Phase noise tests - I was interested in seeing if it could display the RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. Here are PRELIMINARY RELATIVE results, without numbers, in order of phase noise level at 2 khz separation:An 8640B signal generator (known to have low phase noise)The K3 with original synthesizerThe FT100 After I install the new synthesizer I hope to be able to compare it to the original one. I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of transmitted bandwith of the cw signal sending fast dots. MUCH easier and better than the old analog HP spectrum analyzer which had to sweep extremely slowly across the band with a narrow filter. With this setup you hold the key closed, and hit the control-print screen buttons on the keyboard and you have a beautiful picture ! Ain't technology great? 2-tone IMD measurements -The two tone test of the K3 showed something interesting, since it has both 10 watt and a 100 watt PAs installed. Starting with low power and cranking up the power control, you notice, of course, that the ten watt PA has worse IMD just before the big PA kicks in, in the 11-12 watt range. Then it is very clean (approximately -40 db for third order) at its best, and ok in the 30 watt range (where it would be set to run my 8877 amp) but then gets quite ugly above 65 watts. And I mean in the -20 db range at 100 watts. IF it was overloading the spectrum analyzer these tests would be invalid, so I need to verify that. As I said these tests are preliminary. I need a few more hours. In my humble opinion, running at full power, 100 watts barefoot, my K3 would be transmitting an unacceptably sloppy signal. Keeping it in the 65 watt range or under, or driving an amp would be better, provided your amp is clean. My 8877 amp is VERY clean. I don't know about a solid state amp. Some of the ugliest signals I have seen on the bands with the Flex panadapter in very limited observations have come from Expert 1500 watt amps (2 examples). The very best was an Anan 100 with a Ten Tec 1500 watt tube amp. The waterfall was a brick wall - NOTHING whatsoever outside the 3 khz bandwidth. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Rick, Check your compression and ALC settings. There's a specific setup/configuration for proper use AND test. Based on my reading you can cause a bad signal on ANY transmitter with the comp/alc settings miss-adjusted. I'm sure someone here can better address the setup/configuration. jer -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Stealey Sent: Tuesday, September 01, 2015 11:18 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S IMD Questions I have been playing with a Flex 6300 here in my shack recently. I consider it a great piece of test equipment for analyzing signals in the shack as well as on the air. It does everything and more, as a spectrum analyzer, that my old HP141 analog setup did, except it doesn't have a tracking generator. My measurements are not completed and I am still experimenting, but here is what I've done so far. Phase noise, cw transmitted bandwidth, and 2 tone IMD tests. My two rigs are a K3/100 and an FT100D (how good, and how bad can you get!) Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal into it, keeping the level just under 0 dbm, and assuming it is not generating imd of its own, but I haven't quantified that yet. Phase noise tests - I was interested in seeing if it could display the RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. Here are PRELIMINARY RELATIVE results, without numbers, in order of phase noise level at 2 khz separation:An 8640B signal generator (known to have low phase noise)The K3 with original synthesizerThe FT100 After I install the new synthesizer I hope to be able to compare it to the original one. I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of transmitted bandwith of the cw signal sending fast dots. MUCH easier and better than the old analog HP spectrum analyzer which had to sweep extremely slowly across the band with a narrow filter. With this setup you hold the key closed, and hit the control-print screen buttons on the keyboard and you have a beautiful picture ! Ain't technology great? 2-tone IMD measurements -The two tone test of the K3 showed something interesting, since it has both 10 watt and a 100 watt PAs installed. Starting with low power and cranking up the power control, you notice, of course, that the ten watt PA has worse IMD just before the big PA kicks in, in the 11-12 watt range. Then it is very clean (approximately -40 db for third order) at its best, and ok in the 30 watt range (where it would be set to run my 8877 amp) but then gets quite ugly above 65 watts. And I mean in the -20 db range at 100 watts. IF it was overloading the spectrum analyzer these tests would be invalid, so I need to verify that. As I said these tests are preliminary. I need a few more hours. In my humble opinion, running at full power, 100 watts barefoot, my K3 would be transmitting an unacceptably sloppy signal. Keeping it in the 65 watt range or under, or driving an amp would be better, provided your amp is clean. My 8877 amp is VERY clean. I don't know about a solid state amp. Some of the ugliest signals I have seen on the bands with the Flex panadapter in very limited observations have come from Expert 1500 watt amps (2 examples). The very best was an Anan 100 with a Ten Tec 1500 watt tube amp. The waterfall was a brick wall - NOTHING whatsoever outside the 3 khz bandwidth. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to je...@carolinaheli.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Travel with KX3
Just sailed through security at Reagan National, JFK and El AL on my way to Israel. Had the KX3, a wire antenna and coax in the carry on. Those are some of the toughest security check points in the world. No one asked a question or wanted to open the bag. Listen for 4x/k4ia on the qrp frequencies. Holiday style. K4iaBuck __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Super Support
Craig and the techs were super. I emailed Elecraft support yesterday at 11:45. At 12:15 Craig called me with what they thought my problem to be. They were spot on with the diagnosis. I now have what is to me a new radio in that it plays beautifully. By the way, the problem was self induced but had frustrated me for over a year. Tip if you rearrange your filters you need to renter the offsets. Also my firmware had become corrupted. Old timers had struck. hi hi Recal of the filter offsets and load of current firmware, recal S-meter. I now have my K3 working as it should. Thanks to the quick response and proper diagnosis of the A-Team or E-Team. hi hi Bill J K7BRR -- View this message in context: http://elecraft.365791.n2.nabble.com/Super-Support-tp7606902.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] CW +SSB with external transverter problem
Aha, think I have found the problem, it was related to the setting in CW WGHT - VOX AUTO OFF - if this is set ( that is not VOX NOR) then when powers up the set behaves as I described, and needs to switched to CW and VOX put on again. I think I have it working reliably now with my external keyer in SSB +CW now. It is still a bit funky even with the internal keyer chosen after a start up with VOX AUTO OFF enabled, you have to switch to CW put VOX ON then back to SSB mode to get CW in SSB to work with VOX. It might have been better if the VOX was off for the paddles not to key the PTT at all in SSB + CW as it is rather disconcerting and not good for relays in the transverter for it to have the keyline keyed at the CW speed. 73 David Anderson GM4JJJ > On 1 Sep 2015, at 16:16, David Anderson wrote: > > Hi Jim, thanks for replying. > > I am running the latest firmware and I do have VOX delay set in CW mode. > However the 'bug' appears to only affect keying with external keyer, and > works fine with the internal KX3 keyer. > > Slightly annoying as I prefer to use my old CMOS superkeyer to anything else > because I am familiar with it and like its timing. > > 73 > > David Anderson GM4JJJ > >> On 1 Sep 2015, at 13:53, jimk...@aol.com wrote: >> >> You need to set the VOX Delay while in the CW mode, to a long enough time to >> keep the transverter from dropping out. You'll likely want to reset that if >> you go back to CW operation without the transverter. >> >> Also, it was a relatively recent firmware version that fixed the problem. Be >> sure you have the latest version. >> >> >> 73 - Jim K8MR >> >> >> -Original Message- >> From: David Anderson >> To: Elecraft Reflector >> Sent: Tue, Sep 1, 2015 6:38 am >> Subject: Re: [Elecraft] [KX3] CW +SSB with external transverter problem >> >> One further note, I am using an external keyer, not the KX3 internal keyer. I >> just tried the internal keyer and it does work as I would expect. >> >> 73 >> >> David >> Anderson GM4JJJ >> On 1 Sep 2015, at 11:25, David Anderson >>> wrote: >>> >>> Scenario: >>> >>> KX3 with external >> transverter and amplifier on 144MHz. (Transverter RX/TCswitched from KX3 >> keyline >> out). >>> Wish to use CW+SSB feature where hitting the key in SSB mode transmits >> CW. This is an option in the CW WGHT menu, selected by tapping 1. >>> CW in SSB >> is something that is used on VHF DX where fading sometimes means having to >> quickly switch to CW from SSB during a QSO. >>> >>> Result: >>> >>> Tapping the >> key in SSB mode now keys the PTT line to transverter at the keying rate, >> irrespective of DLY setting or whether VOX or PTT is selected. >>> >>> So it >> cannot be be used as the relay switching in the transverter and amplifier is >> not >> capable of switching at the CW keying rate. >>> >>> Questions: >>> >>> Is this how >> this feature was meant to work? >>> >>> Could it be altered so that the CW VOX >> delay is honoured when using CW in SSB mode? This would then allow the >> feature >> to be useful with external PTT (Keyline) driven transverters. >>> >>> Many >> thanks, >>> >>> 73 >>> >>> David Anderson GM4JJJ >> >>> >>> >>> >>> >>> 73 >>> >>> David Anderson GM4JJJ >> __ >>> Elecraft >> mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: >> http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >> This list hosted by: http://www.qsl.net >>> Please help support this email list: >> http://www.qsl.net/donate.html >>> Message delivered to >> gm4...@yahoo.co.uk >> __ >> Elecraft >> mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: >> http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This >> list hosted by: http://www.qsl.net >> Please help support this email list: >> http://www.qsl.net/donate.html >> Message delivered to jimk...@aol.com > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gm4...@yahoo.co.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions
I use a AVerMedia C126 Capture card so I can put it in a windows and display it on my existing monitors. From: Marty To: elecraft@mailman.qth.net Sent: Tuesday, September 1, 2015 10:49 AM Subject: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately I get the two black bars on each side of the screen when I set the resolution to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all four sides). I had read somewhere that the black bars indicated that there was a compatibility issue with the monitor frequency and the P3 SVGA. If I change the resolution to 1440 x 900 it fills the screen, but clips the data on the bottom and the text is too big (I adjusted the text size as small as available). Can anyone suggest a compatible monitor or brand of monitors? I like the Samsung, but I would prefer a monitor that can utilize the entire screen. Thanks. 73, Marty - K1MTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
For a decent Spectrum Analyzer, 9kHz to 1.5 GHz with tracking generator, check out the Rigol DSA 815-TG. It is available for under $1500 and free shipping for Amazon Prime members. Not only is it an aide to the station equipment but it is an excellent piece of test equipment. As one reviewer stated, "it won't do what the Agilent Spectrum Analyzer costing some 10X as much will do but for the price, it is an excellent value". 73 Bob, K4TAX K3S s/n 10,163 On 9/1/2015 10:18 AM, Rick Stealey wrote: I have been playing with a Flex 6300 here in my shack recently. I consider it a great piece of test equipment for analyzing signals in the shack as well as on the air. It does everything and more, as a spectrum analyzer, that my old HP141 analog setup did, except it doesn't have a tracking generator. My measurements are not completed and I am still experimenting, but here is what I've done so far. Phase noise, cw transmitted bandwidth, and 2 tone IMD tests. My two rigs are a K3/100 and an FT100D (how good, and how bad can you get!) Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal into it, keeping the level just under 0 dbm, and assuming it is not generating imd of its own, but I haven't quantified that yet. Phase noise tests - I was interested in seeing if it could display the RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. Here are PRELIMINARY RELATIVE results, without numbers, in order of phase noise level at 2 khz separation:An 8640B signal generator (known to have low phase noise)The K3 with original synthesizerThe FT100 After I install the new synthesizer I hope to be able to compare it to the original one. I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of transmitted bandwith of the cw signal sending fast dots. MUCH easier and better than the old analog HP spectrum analyzer which had to sweep extremely slowly across the band with a narrow filter. With this setup you hold the key closed, and hit the control-print screen buttons on the keyboard and you have a beautiful picture ! Ain't technology great? 2-tone IMD measurements -The two tone test of the K3 showed something interesting, since it has both 10 watt and a 100 watt PAs installed. Starting with low power and cranking up the power control, you notice, of course, that the ten watt PA has worse IMD just before the big PA kicks in, in the 11-12 watt range. Then it is very clean (approximately -40 db for third order) at its best, and ok in the 30 watt range (where it would be set to run my 8877 amp) but then gets quite ugly above 65 watts. And I mean in the -20 db range at 100 watts. IF it was overloading the spectrum analyzer these tests would be invalid, so I need to verify that. As I said these tests are preliminary. I need a few more hours. In my humble opinion, running at full power, 100 watts barefoot, my K3 would be transmitting an unacceptably sloppy signal. Keeping it in the 65 watt range or under, or driving an amp would be better, provided your amp is clean. My 8877 amp is VERY clean. I don't know about a solid state amp. Some of the ugliest signals I have seen on the bands with the Flex panadapter in very limited observations have come from Expert 1500 watt amps (2 examples). The very best was an Anan 100 with a Ten Tec 1500 watt tube amp. The waterfall was a brick wall - NOTHING whatsoever outside the 3 khz bandwidth. Rick K2XT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
On Tue,9/1/2015 10:00 AM, Bob McGraw - K4TAX wrote: For a decent Spectrum Analyzer, 9kHz to 1.5 GHz with tracking generator, check out the Rigol DSA 815-TG. Hi Bob, I've got one of these, in addition to a vintage HP 8590D. Specs are similar, the HP is a bit better, but not a lot. Both are blown away by some of the best of SDRs, including the K3 with P3/SVGA. While the P3/SVGA can display only 80 dB, the front end is good for about 100 dB, the display can be scaled up to view down to that level. Not as good as the Rigol or HP, but P3/SVGA frequency resolution can go down to 1 Hz (2048 point FFT for a 2 kHz span), two orders of magnitude better than the Rigol or HP. Rigol phase noise is specified as -80dBc/Hz at 10 kHz; the original K3 (with original synth board) was measured by ARRL as -140dBc/Hz. Bottom line -- the Rigol and HP are fine for looking at harmonics and spurs, but useless for looking at occupied bandwidth. Take a look at the plots in this link, especially slide #8, K3 steady carrier at 25W. I can't do this with my Rigol or my HP! http://k9yc.com/P3_Spectrum_Measurements.pdf 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
I found very much the same as Rick did, with a completely different test setup (SDR-IQ). The details vary somewhat with frequency and supply voltage but the three main features reported by Rick remain the same: >the ten watt PA has worse IMD just before the big PA kicks in, in the >11-12 watt range. >Then it is very clean (approximately -40 db for third >order) at its best, and ok in the 30 watt range (where it would be set to run >my 8877 amp) > but then gets quite ugly above 65 watts. And I mean in the -20 db range at 100 watts. My figures confirm those three main features (assuming we're both reporting 3rd order IMD, "dB below either tone"). The other important feature is that the levels of higher-order IMD do not fall quickly when tuning away from the main signal. If we had reported "total occupied bandwidth at -60dBc", those results would not look pretty at all! Those measurements were first made about 7 years ago on my original low-serial K3, and today I made similar measurements on the new K3S. The 10/12W PA is different from the one in the K3 (two TO220 RF power transistors in the K3S, where the K3 had three). However, the 100W PA is the original module from my 7-year-old K3, so the IMD performance of that module may not be representative of current production. Today, anyone can make 2-tone IMD measurements using a modern SDR and a little care in setting up the input levels. The K3 itself provides the 2-tone test signal (CONFIG:2TONE On). If anyone can report comparable results for an all-new K3S/100, that would be very interesting to see... but don't expect any radical changes in those three main features reported by Rick. 73 from Ian GM3SEK >-Original Message- >From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of >Rick Stealey >Sent: 01 September 2015 16:18 >To: elecraft@mailman.qth.net >Subject: Re: [Elecraft] K3S IMD Questions > >I have been playing with a Flex 6300 here in my shack recently. I consider it >a great piece of test equipment for analyzing signals in the shack as well as >on the air. It does everything and more, as a spectrum analyzer, that my >old HP141 analog setup did, except it doesn't have a tracking generator. >My measurements are not completed and I am still experimenting, but >here is what I've done so far. Phase noise, cw transmitted bandwidth, and >2 tone IMD tests. My two rigs are a K3/100 and an FT100D (how good, and >how bad can you get!) >Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal >into it, keeping the level just under 0 dbm, and assuming it is not >generating imd of its own, but I haven't quantified that yet. >Phase noise tests - I was interested in seeing if it could display the >RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. >Here are PRELIMINARY RELATIVE results, without numbers, in order of >phase noise level at 2 khz separation:An 8640B signal generator (known to >have low phase noise)The K3 with original synthesizerThe FT100 After I >install the new synthesizer I hope to be able to compare it to the original >one. >I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of >transmitted bandwith of the cw signal sending fast dots. MUCH easier and >better than the old analog HP spectrum analyzer which had to sweep >extremely slowly across the band with a narrow filter. With this setup you >hold the key closed, and hit the control-print screen buttons on the >keyboard and you have a beautiful picture ! Ain't technology great? >2-tone IMD measurements -The two tone test of the K3 showed something >interesting, since it has both 10 watt and a 100 watt PAs installed. Starting >with low power and cranking up the power control, you notice, of course, >that the ten watt PA has worse IMD just before the big PA kicks in, in the >11-12 watt range. Then it is very clean (approximately -40 db for third >order) at its best, and ok in the 30 watt range (where it would be set to run >my 8877 amp) but then gets quite ugly above 65 watts. And I mean in the - >20 db range at 100 watts. IF it was overloading the spectrum analyzer >these tests would be invalid, so I need to verify that. As I said these tests >are preliminary. I need a few more hours. > >In my humble opinion, running at full power, 100 watts barefoot, my K3 >would be transmitting an unacceptably sloppy signal. Keeping it in the 65 >watt range or under, or driving an amp would be better, provided your amp >is clean. My 8877 amp is VERY clean. I don't know about a solid state >amp. Some of the ugliest signals I have seen on the bands with the Flex >panadapter in very limited observations have come from Expert 1500 watt >amps (2 examples). The very best was an Anan 100 with a Ten Tec 1500 >watt tube amp. The waterfall was a brick wall - NOTHING whatsoever >outside the 3 khz bandwidth. >Rick K2XT > > > > > >__ >Elecraft ma
Re: [Elecraft] K3S IMD Questions
I re-ran the IMD tests with another PS and put 30 db more attenuation in front of the spectrum analyzer and the K3 now looks good above 65 watts. -30 db IP3 at 100 watts, in fact. Sorry. But it's still cleanest down in the 30 watt range. Rick K2XT > From: rstea...@hotmail.com > To: elecraft@mailman.qth.net > Date: Tue, 1 Sep 2015 15:18:05 + > Subject: Re: [Elecraft] K3S IMD Questions > > I have been playing with a Flex 6300 here in my shack recently. I consider > it a great piece of test equipment for analyzing signals in the shack as well > as on the air. It does everything and more, as a spectrum analyzer, that my > old HP141 analog setup did, except it doesn't have a tracking generator. > My measurements are not completed and I am still experimenting, but here is > what I've done so far. Phase noise, cw transmitted bandwidth, and 2 tone IMD > tests. My two rigs are a K3/100 and an FT100D (how good, and how bad can you > get!) > Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal > into it, keeping the level just under 0 dbm, and assuming it is not > generating imd of its own, but I haven't quantified that yet. > Phase noise tests - I was interested in seeing if it could display the > RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. > Here are PRELIMINARY RELATIVE results, without numbers, in order of phase > noise level at 2 khz separation:An 8640B signal generator (known to have low > phase noise)The K3 with original synthesizerThe FT100 After I install the new > synthesizer I hope to be able to compare it to the original one. > I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of > transmitted bandwith of the cw signal sending fast dots. MUCH easier and > better than the old analog HP spectrum analyzer which had to sweep extremely > slowly across the band with a narrow filter. With this setup you hold the > key closed, and hit the control-print screen buttons on the keyboard and you > have a beautiful picture ! Ain't technology great? > 2-tone IMD measurements -The two tone test of the K3 showed something > interesting, since it has both 10 watt and a 100 watt PAs installed. > Starting with low power and cranking up the power control, you notice, of > course, that the ten watt PA has worse IMD just before the big PA kicks in, > in the 11-12 watt range. Then it is very clean (approximately -40 db for > third order) at its best, and ok in the 30 watt range (where it would be set > to run my 8877 amp) but then gets quite ugly above 65 watts. And I mean in > the -20 db range at 100 watts. IF it was overloading the spectrum analyzer > these tests would be invalid, so I need to verify that. As I said these > tests are preliminary. I need a few more hours. > > In my humble opinion, running at full power, 100 watts barefoot, my K3 would > be transmitting an unacceptably sloppy signal. Keeping it in the 65 watt > range or under, or driving an amp would be better, provided your amp is > clean. My 8877 amp is VERY clean. I don't know about a solid state amp. > Some of the ugliest signals I have seen on the bands with the Flex panadapter > in very limited observations have come from Expert 1500 watt amps (2 > examples). The very best was an Anan 100 with a Ten Tec 1500 watt tube amp. > The waterfall was a brick wall - NOTHING whatsoever outside the 3 khz > bandwidth. > Rick K2XT > > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rstea...@hotmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Anyone who does such testing should also include in the report(s) the power supply voltage as seen by the K3S alternate VFO B display. Lower power supply voltages will have worse IMD than voltages that are higher. Running the K3 or K3S with a power supply voltage above 14.3 volts will improve the IMD substantially. 73, Don W3FPR On 9/1/2015 1:44 PM, Ian White wrote: I found very much the same as Rick did, with a completely different test setup (SDR-IQ). The details vary somewhat with frequency and supply voltage but the three main features reported by Rick remain the same: __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
On Tue,9/1/2015 10:44 AM, Ian White wrote: Today, anyone can make 2-tone IMD measurements using a modern SDR and a little care in setting up the input levels. The K3 itself provides the 2-tone test signal (CONFIG:2TONE On). Yes and no. Let's not forget that the response of any measurement is the combined response of both the measurement system and the device under test (DUT). An important test of any spectrum measurement system is its frequency resolution, which can be tested by its response to a steady unmodulated, unkeyed carrier. Like slide #8 in http://k9yc.com/P3_Spectrum_Measurements.pdf Likewise, we must qualify the dynamic range of the measurement system -- when does it begin to contribute distortion due to its own non-linearity. This is what K2XT ran into in his tests. On Tue,9/1/2015 10:54 AM, Don Wilhelm wrote: Anyone who does such testing should also include in the report(s) the power supply voltage as seen by the K3S alternate VFO B display. Lower power supply voltages will have worse IMD than voltages that are higher. Running the K3 or K3S with a power supply voltage above 14.3 volts will improve the IMD substantially. Yes, the K3 and K3S are a bit cleaner with higher power supply voltage. K6XX showed this in a presentation to NCCC a few years ago. It's on my website. All of my testing has been done with power supply in the range of 12.3 - 12.6V. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions
Thank you for your responses. I ended up returning the Samsung and got an ASUS. Issue resolved. The ASUS handles the P3 output in all resolutions with no issues. I could not adjust the screen size with the Samsung, only the centering of the image. Extra benefit - the ASUS ended up being $50 cheaper and I like the control menus a bit better as well. 73, Marty - K1MTK On Sep 1, 2015, at 10:49 AM, Marty wrote: I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately I get the two black bars on each side of the screen when I set the resolution to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all four sides). I had read somewhere that the black bars indicated that there was a compatibility issue with the monitor frequency and the P3 SVGA. If I change the resolution to 1440 x 900 it fills the screen, but clips the data on the bottom and the text is too big (I adjusted the text size as small as available). Can anyone suggest a compatible monitor or brand of monitors? I like the Samsung, but I would prefer a monitor that can utilize the entire screen. Thanks. 73, Marty - K1MTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
As you no doubt know, to check linearity with a SA you drop in 10 dB of front end attenuation and look to see that everything on the screen drops 10 dB. You probably also know that the phase noise of the analyzer should be, as a rule of thumb, 10 dB better than the device you're measuring. The 6300 claims -140dBc at 10 KHz offset for its reference oscillator. I believe that's more or less the same number Elecraft claims for the K3 synthesizer. On 9/1/2015 8:18 AM, Rick Stealey wrote: I have been playing with a Flex 6300 here in my shack recently. I consider it a great piece of test equipment for analyzing signals in the shack as well as on the air. It does everything and more, as a spectrum analyzer, that my old HP141 analog setup did, except it doesn't have a tracking generator. My measurements are not completed and I am still experimenting, but here is what I've done so far. Phase noise, cw transmitted bandwidth, and 2 tone IMD tests. My two rigs are a K3/100 and an FT100D (how good, and how bad can you get!) Using a Flex 6300 as a spectrum analyzer, I fed a greatly attenuated signal into it, keeping the level just under 0 dbm, and assuming it is not generating imd of its own, but I haven't quantified that yet. Phase noise tests - I was interested in seeing if it could display the RELATIVE benefit of the new synthesizer on my K3, looking at phase noise. Here are PRELIMINARY RELATIVE results, without numbers, in order of phase noise level at 2 khz separation:An 8640B signal generator (known to have low phase noise)The K3 with original synthesizerThe FT100 After I install the new synthesizer I hope to be able to compare it to the original one. I verified the FFT spectrum analyzer (Flex 6300) can give an instant view of transmitted bandwith of the cw signal sending fast dots. MUCH easier and better than the old analog HP spectrum analyzer which had to sweep extremely slowly across the band with a narrow filter. With this setup you hold the key closed, and hit the control-print screen buttons on the keyboard and you have a beautiful picture ! Ain't technology great? 2-tone IMD measurements -The two tone test of the K3 showed something interesting, since it has both 10 watt and a 100 watt PAs installed. Starting with low power and cranking up the power control, you notice, of course, that the ten watt PA has worse IMD just before the big PA kicks in, in the 11-12 watt range. Then it is very clean (approximately -40 db for third order) at its best, and ok in the 30 watt range (where it would be set to run my 8877 amp) but then gets quite ugly above 65 watts. And I mean in the -20 db range at 100 watts. IF it was overloading the spectrum analyzer these tests would be invalid, so I need to verify that. As I said these tests are preliminary. I need a few more hours. In my humble opinion, running at full power, 100 watts barefoot, my K3 would be transmitting an unacceptably sloppy signal. Keeping it in the 65 watt range or under, or driving an amp would be better, provided your amp is clean. My 8877 amp is VERY clean. I don't know about a solid state amp. Some of the ugliest signals I have seen on the bands with the Flex panadapter in very limited observations have come from Expert 1500 watt amps (2 examples). The very best was an Anan 100 with a Ten Tec 1500 watt tube amp. The waterfall was a brick wall - NOTHING whatsoever outside the 3 khz bandwidth. Rick K2XT __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered to...@triconet.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S trouble doing PSK31 w DM780
Essentially impossible on my K3S. I could never get my head around HRD (even when it was free) so I can't speak to that. But with MMTTY I have my Windows slider at 20% and the Mic/Line Level control is still so sensitive that a change from 6 to 7 takes the ALC from 3 to 5 bars. These low setting then require an increase in VOX gain that then makes it too sensitive on SSB. Lowering the Windows gain exacerbates the problem. VOX and Mic gains should be totally independent. Sadly, in the K3 (both vintages) they are not. If I had the appropriate serial cable I would go back to serial control and Line In/Line Out. Wes N7WS On 9/1/2015 6:58 AM, Don Wilhelm wrote: Adjust the slider on the computer soundcard control to about 2/3 of full and then adjust the K3S Line In (Mic gain used in DATA mode) to produce 4 bars solid with the 5th bar flickering on the ALC meter - you can do that in TX TEST mode so no RF is transmitted. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
I would buy one in a heartbeat, but the phase noise performance is abysmal. On 9/1/2015 10:00 AM, Bob McGraw - K4TAX wrote: For a decent Spectrum Analyzer, 9kHz to 1.5 GHz with tracking generator, check out the Rigol DSA 815-TG. It is available for under $1500 and free shipping for Amazon Prime members. Not only is it an aide to the station equipment but it is an excellent piece of test equipment. As one reviewer stated, "it won't do what the Agilent Spectrum Analyzer costing some 10X as much will do but for the price, it is an excellent value". 73 Bob, K4TAX K3S s/n 10,163 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions
Hi Gary, I purchased the ASUS 23” LED, ModelVX238H, from MicroCenter. Net price was $139.99 after $20 instant rebate and $20 mail-in rebate. It has both VGA and (2) HDMI ports so I can attach to my iMac as well, if I care to use as an extra, extended screen. 73, Marty - K1MTK On Sep 1, 2015, at 3:39 PM, Gary K9GS wrote: Hi Marty Which model Asus did you get? 73 Gary K9GS Original message From: Marty Date: 09/01/2015 1:27 PM (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions Thank you for your responses. I ended up returning the Samsung and got an ASUS. Issue resolved. The ASUS handles the P3 output in all resolutions with no issues. I could not adjust the screen size with the Samsung, only the centering of the image. Extra benefit - the ASUS ended up being $50 cheaper and I like the control menus a bit better as well. 73, Marty - K1MTK On Sep 1, 2015, at 10:49 AM, Marty wrote: I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately I get the two black bars on each side of the screen when I set the resolution to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all four sides). I had read somewhere that the black bars indicated that there was a compatibility issue with the monitor frequency and the P3 SVGA. If I change the resolution to 1440 x 900 it fills the screen, but clips the data on the bottom and the text is too big (I adjusted the text size as small as available). Can anyone suggest a compatible monitor or brand of monitors? I like the Samsung, but I would prefer a monitor that can utilize the entire screen. Thanks. 73, Marty - K1MTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to garyk...@wi.rr.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions
I’m another happy ASUS user. I’ve got the VN247, 23” model; VGA and two HDMI ports. One HDMI goes to my iMac and the other runs over to a Raspberry Pi micro processor. I like having dual monitors on the Mac, as it allows me the real estate to have WSJT-X, JT Bridge, and MacLoggerDX all up and visible at the same time. I would imagine this unit would work equally well with the P3 connected to it, as it is quite modifiable. I vaguely remember paying about $135 for it at a local Office Depot. 73, Jim / W6JHB > On Tuesday, Sep 1, 2015, at Tuesday, 12:46 PM, Marty > wrote: > > Hi Gary, > I purchased the ASUS 23” LED, ModelVX238H, from MicroCenter. Net price was > $139.99 after $20 instant rebate and $20 mail-in rebate. It has both VGA and > (2) HDMI ports so I can attach to my iMac as well, if I care to use as an > extra, extended screen. > > 73, > Marty - K1MTK > > > > > On Sep 1, 2015, at 3:39 PM, Gary K9GS wrote: > > Hi Marty > > Which model Asus did you get? > > > > 73 > Gary K9GS > > > > Original message > From: Marty > Date: 09/01/2015 1:27 PM (GMT-06:00) > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] P3 - SVGA Monitor Compatibility Suggestions > > Thank you for your responses. > > I ended up returning the Samsung and got an ASUS. Issue resolved. The ASUS > handles the P3 output in all resolutions with no issues. I could not adjust > the screen size with the Samsung, only the centering of the image. > > Extra benefit - the ASUS ended up being $50 cheaper and I like the control > menus a bit better as well. > 73, > Marty - K1MTK > > > > On Sep 1, 2015, at 10:49 AM, Marty wrote: > > I just purchased a new Samsung 23.6” LED HD Monitor for my P3. Unfortunately > I get the two black bars on each side of the screen when I set the resolution > to 1920 X 1080 (1920 x 1080 alt fills the screen but clips the image on all > four sides). I had read somewhere that the black bars indicated that there > was a compatibility issue with the monitor frequency and the P3 SVGA. If I > change the resolution to 1440 x 900 it fills the screen, but clips the data > on the bottom and the text is too big (I adjusted the text size as small as > available). > > Can anyone suggest a compatible monitor or brand of monitors? I like the > Samsung, but I would prefer a monitor that can utilize the entire screen. > Thanks. > > 73, > Marty - K1MTK > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to garyk...@wi.rr.com > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Wow, Elecraft charges a lot for shipping!
It was officially closed yesterday.. Eric elecraft.com _..._ > On Sep 1, 2015, at 1:30 AM, Edward R Cole wrote: > > This thread is probably just about over- > > I ship using USPS Priority Mail almost exclusively. > Small box = $5.25* > Medium box = $11.30* > Large box = $15.80* > *If you pay online - a bit more if you pay at the PO > > Priority Mail is 2-day delivery which translates to 3-day in Alaska (it gets > to the Anchorage Airport Sort Center in 2-days and is delivered by truck > 180mi to my PO the next day). > But I allow up to 5-days delivery time for Priority Mail out of AK for my > customers. Parcel Post takes a min of 18-days and usually 20-days. Overnite > Express Letter - takes two days! > > UPS/Fedex 2-day delivery for the same item in AK is about 2x to 3x as > expensive (of course shipping in/out of AK requires using a NASA Launch to > the nearest planet). Guess what it still takes 3-days with them, too! > > I ship world-wide using flat-rate International Priority Mail (even to Canada > which costs more than within the 50-states). > Medium box to UK or EU is $76.50 vs $19.30 inside the US ($8 added for $500 > insurance). So you guys in the lower-48 got nothing to bellyache about cost > of shipping. > > 73, Ed - KL7UW > http://www.kl7uw.com >"Kits made by KL7UW" > Dubus Mag business: >dubus...@gmail.com > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to eric.swa...@elecraft.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Wow, Elecraft charges a lot for shipping!
I always use USPS Priority Mail going both ways. It's faster, less expensive and I'm glad Elecraft uses them by default. 73 On Sun, 30 Aug 2015 22:41:09 -0400, you wrote: >Probably USPS Priority Mail. At least it has been my experience that >Priority Mail is less expensive and more reliable than either UPS or >FedEX 2-Day or surface. > >73, > > ... Joe, W4TV > Amateur Radio Operator N5GE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S Options - Install in what order to make it all easier?
My apologies if this is a FAQ. I've been looking all through the archives and can't seem to find an answer, so I'm turning to the good folks of the Elecraft reflector for some guidance. I'm considering my first home HF station radio upgrade since 2000, and I'm looking at the K3S. The number of options are overwhelming at first, so I've been reading and trying to narrow down what I'd need to get started. I chase DX and do some contesting (all modes), so I'm thinking I'll get some tighter filters, I know I'd like to be able to run an RX antenna for low band work, possibly look at the sub-RX option as well for listening to the other side of a split operation, etc. Here's my main question: If I'm building from kit, are there any particular options I'd want to make sure I install first as to not make things more difficult later? For example, if I add filters now, then add the sub-RX later, am I making things more difficult than if I added the sub-RX first? Would I be putting myself in the position of having to tear the roof off the house to just upgrade the kitchen? (Sorry, best analogy I got at the moment.) Thanks for your help and 73, Chuck Milam, N9KY n...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
> > I would buy one in a heartbeat, but the phase noise performance is abysmal. > A general purpose SDR or possibly a 10 watt rig like Anan 10 would do better. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/ 100 for sale
K3 /100 watt transceiver with standard 2.7 filter, KXV3A rx antenna IF out and xverter interface, S/N 5999. Excellent cosmetic and operational condition. Original non smoking owner used as a base station only. Can demonstrate, pick up in Portland Oregon or ship within all fifty states. $2020 shipped. Other options possibly available. Selling to purchase K3S. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IMD Questions
Not without decent, and appropriate to the task, software. On 9/1/2015 2:23 PM, Rick Stealey wrote: I would buy one in a heartbeat, but the phase noise performance is abysmal. A general purpose SDR or possibly a 10 watt rig like Anan 10 would do better. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Travel to Italy with KX3
Thanks to all for their information and suggestions. I'm currently in Italy with the KX3 and after dinner this evening we'll try some I/ CW QRP operation. Probably the best result of my query has been the chance to meet with some local hams and enjoy a meal with them--this is such a great brotherhoodboth the ham radio brotherhood and the Elecraft brotherhood. Thanks, Franco, for the very kind invite and look forward to seeing you Thursday. 73 Tom K4AEN Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Options - Install in what order to make it all easier?
Chuck, There is no one good answer, your ideal K3S configuration depends on your operating goals and aspirations as much as anything else. My advice (remember it is free and may be worth all of what it costs:-) ) is for you to order the basic K3S/100 (perhaps with the KAT3 if you do not have resonant antennas) and use it for a while to determine the more frequent bandwidths that you use. The DSP does provide very narrow bandwidth filters, but they cannot help if a strong station near your operating frequency triggers the hardware AGC (S-9+40 dB). Once you have determined your filter width needs, then purchase filters that come close to those bandwidths and add them. Operate some more, and when you think you are ready, add the KRX3 (with filters the same as you selected for the main RX). I am assuming that you are looking for the lowest K3S entry price that you can find, and the above is it. If price is not the object, order what will be suitable for your goal of working DX - the SubRX is indispensable in the long run, but if you have not been using dual receive in your operations yet, it can wait - you still have 2 VFOs and can work split easily without the SubRX. Extra filters are good for CW operation where your receiver will be bombarded with strong stations on nearby frequencies - they can result in the hardware AGC kicking in and desense your receiver - preventing that is the purpose of the added roofing filters. The K3S comes with the KXV3B as standard, so that will allow you to use an RX antenna (as well as transverters and IF output). The thing I am advocating is that you need to consider your desired filter set first. The situation is that the filters in the main RX are physically covered by the SubRX, so if you already have the subRX installed, it must be removed to add/change the filters in the mainRX. It is not really that difficult if you have built from a kit, but is just an extra step. Adding filters to the SubRX entails removing the cover and the board from the SubRX enclosure metalwork - you need access to both the top and bottom of the board to install and secure the filters. So IMHO, your choices for incrementally building your K3S to what you ultimately want centers around the filters that you want to install. If you want to 'do it all at once', and your operating style is mainly CW oriented, I would suggest installing the 400 Hz filter in both the main and the sub, although you may want to use the 250 Hz filter either in addition or instead. If you are more SSB contest and DX oriented, choose either the 2.1 or 1.8 kHz roofing filters (but not both). You will find the KRX3 useful for contesting/DXing, but whether you add it initially or later is your decision. In other words, the best K3S configuration for you is based on your operating desires, goals and preferences. As confusing as it is, the fact remains that Elecraft has provided a transceiver that can be customized for your individual needs, and that is what makes it complicated. 73, Don W3FPR On 9/1/2015 5:02 PM, Chuck Milam, N9KY wrote: My apologies if this is a FAQ. I've been looking all through the archives and can't seem to find an answer, so I'm turning to the good folks of the Elecraft reflector for some guidance. I'm considering my first home HF station radio upgrade since 2000, and I'm looking at the K3S. The number of options are overwhelming at first, so I've been reading and trying to narrow down what I'd need to get started. I chase DX and do some contesting (all modes), so I'm thinking I'll get some tighter filters, I know I'd like to be able to run an RX antenna for low band work, possibly look at the sub-RX option as well for listening to the other side of a split operation, etc. Here's my main question: If I'm building from kit, are there any particular options I'd want to make sure I install first as to not make things more difficult later? For example, if I add filters now, then add the sub-RX later, am I making things more difficult than if I added the sub-RX first? Would I be putting myself in the position of having to tear the roof off the house to just upgrade the kitchen? (Sorry, best analogy I got at the moment.) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 SWR display when used with KXPA100
A quick question: I use a KX3 + KXPA100 as my QTH setup. I recently did work on my QTH antenna, and the SWR indicator on my KX3 now jumps around a lot when transmitting on digital modes, with peaks up to 2/3. As does the power output. Audio levels are good though, same as usual. And when looking at the KXAP100 SWR LED indicator, it stays at "1" and does not fluctuate at all. The antenna is well tuned for 20m and the ATU is able to take SWR to 1.1 or 1.0 on that band. I am a bit confused: shouldn't the KX3 and KXPA100 SWR indicators show the same values? Does the KX3 SWR indicator only indicate the link between the KX3 and the amplifier? In which case it should remain at a steady "1" all the time, nothing has changed on my KX3-KXPA100 link... Can someone shed some light on this behaviour to understand what's going on? Ed W6ELA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 SWR display when used with KXPA100
And as a quick follow-up: when my KXPA100 is off - and my understanding is that when it is off, it is bypassed with a relay - then I get a very high SWR on my KX3, whereas if I connect my antenna to the KX3 directly, then I have a great tuning... Ed On Tue, Sep 1, 2015 at 4:18 PM, Edouard Lafargue wrote: > > A quick question: > > I use a KX3 + KXPA100 as my QTH setup. > > I recently did work on my QTH antenna, and the SWR indicator on my KX3 > now jumps around a lot when transmitting on digital modes, with peaks up to > 2/3. As does the power output. Audio levels are good though, same as usual. > And when looking at the KXAP100 SWR LED indicator, it stays at "1" and does > not fluctuate at all. The antenna is well tuned for 20m and the ATU is able > to take SWR to 1.1 or 1.0 on that band. > > I am a bit confused: shouldn't the KX3 and KXPA100 SWR indicators show > the same values? Does the KX3 SWR indicator only indicate the link between > the KX3 and the amplifier? In which case it should remain at a steady "1" > all the time, nothing has changed on my KX3-KXPA100 link... Can someone > shed some light on this behaviour to understand what's going on? > >Ed > > W6ELA > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
