Re: [Elecraft] Is there a reason the receive is so Skinny
While I do not endorse ESSB, it seems to me the dogs were let loose almost immediately. Doesn't this go against list guidelines? I don't understand why Eric let this go on. 73 Mike R Check out the QRZ app __ 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] Is there a reason the receive is so Skinny
STOP IT !! On Apr 27, 2014, at 11:11 PM, mikerodgerske5gbc--- via Elecraft elecraft@mailman.qth.net wrote: While I do not endorse ESSB, it seems to me the dogs were let loose almost immediately. Doesn't this go against list guidelines? I don't understand why Eric let this go on. 73 Mike R Check out the QRZ app __ 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 dmil...@att.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
[Elecraft] My last words on Skinny Receive audio
I was the one who asked what I thought was a simple and logical question about the receive audio bandpass of the K3. Now after having page after page of lecturing me and others about the evils of ESSB, I am sorry for asking and disappointed in many of your responses to my question. Elecraft offers an ESSB filter. In the manual it tells you how to set the rig up for ESSB. Both the receive and transmit EQs have frequencies all along the 4K range. So I was kind of shocked to hear that in many of your minds, ESSB is a dirty word and that you would go out of your way to attack someone who asks a question about the ESSB capabilities like me. There were 4 gentlemen who looked up my email address and sent me advice and helpful hints but commented that what I am looking for is not currently possible on the K3. They also advised me to disregard the blowhards who like to hang out on the reflector and apologized for them. I am disappointed that the K3 apparently can not match the transmit band pass in the receiver without attenuation. The newer Yaesu rigs can. All of the Flex rigs can. The Anon can. The new (kit like) SDR rigs can, and even the new Kenwood 990 can faithfully match the receive and transmit band pass. It is embarrassing to me to have them receive my signal, record it and play it back accurately while I can not do the same for them on my K3. When I ordered the K3 I spoke to one of the technicians there at Elecraft and was assured after describing what I wanted to do with the K3 that it could meet and in fact exceed my audio needs. Apparently he miss understood or miss quoted the capabilities of the K3 unintentionally. I will be posting my evaluation of the K3 audio in the appropriate places and advise those who are interested in quality audio to look someplace else. The apparent advertised ESSB features are really not there and to not waste your money and time with the rig if that is your interest. Go ahead bash me and ESSB some more. 73 OZ From: Larry Martus Wassmann Non omnis moriar (Not all of me will die) - - - The good I do will live forever. www.w3oz.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] Mail list
Fellow Elecraft owners, It seems that about every 6 months or so I make my post to the list. My mail rules would work very well if everyone would use the suggested format for the subject line. I quote: 4b. When emailing about a specific rig or option, please add the rig/option name(s) to the first part of your email subject line. (K1, K2, K3, KX1 etc.) This will be a huge help for those experiencing email overload and will allow automatic filtering based on subject line. Examples: Subject: [K3] Filter Options Subject: [KX1] How to use ped portable? Subject: [XG2] Wow! Its a big help. My apologies for the interruption and bandwidth. Back to the DELETE key. Regards, Jay AJ4AY Mobile, AL __ 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 -- Spot band switching in HRD
Hello everyone! I have a K3/HRD question: When using the DX cluster and the BandMap (the one with the vertical band display and all the call signs on the right of it) i'm able to switch bands by double-clicking on the spot in the cluster window. No matter what band the K3 is presently on. But if i try to do the same by clicking on the BandMap call signs - i can only do that if the K3 is on the same band as being displayed on the BandMap screen. If the K3 is on 20 meters and i'm looking at the BandMap screen for, say, 15 meters and i try clicking on a call sign - K3 clicks, trying to switch to that band and then clicks right back to where it was before. Is that by design? Anyone else notice that? Again, i can do this from the DX Cluster view by double-clicking on a spot. And K3 will switch to whatever band the spot was on. But from the BandMap view I can only change frequency if the band matches that of a K3. Thanks a bunch in advance! Slava B W2RMS __ 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] How to measure bandwidth of RX signal
Hi, All the ESSB talk got me wondering about how accurate the P3 might be for measuring bandwidth. Could someone review my method for this outlined below and comment please: 1. Use ATT if needed to avoid very strong signals 2. Set bandwidth to 4 KHz. See note below. 3. Adjust Span on P3 5 KHz per side 4. Shaded area above waterfall indicates K3 bandwidth Watch P3. Can one trust the waterfall display to show actual bandwidth? If so, how accurate would it be? Note: I believe that the P3 is tapped prior to any BW restrictions, (of merit to this exercise), so I understand that step 2 is just for my ears only, and does not affect BW display on the P3. Is that a correct assumption? -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info __ 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] My last words on Skinny Receive audio
Larry, I have been totally polite to you, and everyone else in this interchange. I have politely asked you questions, (without adding prejudice to the question), and I have not gotten a single answer from you. I did get an answer from W0MU, and for that I am grateful, he and I disagree on the reasons, but that is fine, each of us gets our own thoughts. To have you basically start calling people that don't support your position names, by classing those that support you as gentlemen, (and ignoring those who disagree with you, which is called guilt by association), is uncalled for and is in essence-- cheating, in an intelligent discussion. I believe you really should review your discussion skills here. -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2014-04-28 at 11:09 +, Larry Wassmann wrote: There were 4 gentlemen who looked up my email address and sent me advice and helpful hints but commented that what I am looking for is not currently possible on the K3. They also advised me to disregard the blowhards who like to hang out on the reflector and apologized for them. __ 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] My last words on Skinny Receive audio
As an aside, I will only be answering this and other ESSB questions via direct email from now on... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2014-04-28 at 07:25 -0700, David Cole wrote: Larry, I have been totally polite to you, and everyone else in this interchange. I have politely asked you questions, (without adding prejudice to the question), and I have not gotten a single answer from you. I did get an answer from W0MU, and for that I am grateful, he and I disagree on the reasons, but that is fine, each of us gets our own thoughts. To have you basically start calling people that don't support your position names, by classing those that support you as gentlemen, (and ignoring those who disagree with you, which is called guilt by association), is uncalled for and is in essence-- cheating, in an intelligent discussion. I believe you really should review your discussion skills here. __ 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] How to measure bandwidth of RX signal
I believe that the P3 is tapped prior to any BW restrictions, Correct. I think the best way to measure an SSB signal's bandwidth on the P3 is to turn on peak hold. After a few seconds the spectrum display will show a pretty accurate picture of the spectral shape of the signal Alan N1AL On 04/28/2014 07:08 AM, David Cole wrote: Hi, All the ESSB talk got me wondering about how accurate the P3 might be for measuring bandwidth. Could someone review my method for this outlined below and comment please: 1. Use ATT if needed to avoid very strong signals 2. Set bandwidth to 4 KHz. See note below. 3. Adjust Span on P3 5 KHz per side 4. Shaded area above waterfall indicates K3 bandwidth Watch P3. Can one trust the waterfall display to show actual bandwidth? If so, how accurate would it be? Note: I believe that the P3 is tapped prior to any BW restrictions, (of merit to this exercise), so I understand that step 2 is just for my ears only, and does not affect BW display on the P3. Is that a correct assumption? __ 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] How to measure bandwidth of RX signal
'Bandwidth' is measured by specifying some number of dB that a signal is down at a particular offset from the center frequency. A measurement in Hz alone is therefore meaningless. I suspect that the number of dB needed to make the waterfall display of a signal disappear depends on various things, like the gain setting. So this is not an accurate way to measure it. What should work is to use the spectrum display of the P3. If you want to know, for example, the bandwidth of a signal at 30 dB down, you just find the points where the 'skirts' of the signal are 30 dB below the peak. This is easy to do on the P3 which can display the signal strength in dBm. On 4/28/2014 7:08 AM, David Cole wrote: Hi, All the ESSB talk got me wondering about how accurate the P3 might be for measuring bandwidth. Could someone review my method for this outlined below and comment please: 1. Use ATT if needed to avoid very strong signals 2. Set bandwidth to 4 KHz. See note below. 3. Adjust Span on P3 5 KHz per side 4. Shaded area above waterfall indicates K3 bandwidth Watch P3. Can one trust the waterfall display to show actual bandwidth? If so, how accurate would it be? Note: I believe that the P3 is tapped prior to any BW restrictions, (of merit to this exercise), so I understand that step 2 is just for my ears only, and does not affect BW display on the P3. Is that a correct assumption? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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] How to measure bandwidth of RX signal
Hello, Between Vic's, and Alan's answer I have what I need, thank you all!!! I can now measure bandwidth, and tell how many db down a signal is vs. it's width. Thank you gents! Peak hold, then measure! :) -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2014-04-28 at 08:37 -0700, Vic Rosenthal K2VCO wrote: 'Bandwidth' is measured by specifying some number of dB that a signal is down at a particular offset from the center frequency. A measurement in Hz alone is therefore meaningless. I suspect that the number of dB needed to make the waterfall display of a signal disappear depends on various things, like the gain setting. So this is not an accurate way to measure it. What should work is to use the spectrum display of the P3. If you want to know, for example, the bandwidth of a signal at 30 dB down, you just find the points where the 'skirts' of the signal are 30 dB below the peak. This is easy to do on the P3 which can display the signal strength in dBm. __ 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] How to measure bandwidth of RX signal
On 4/28/2014 8:37 AM, Vic Rosenthal K2VCO wrote: What should work is to use the spectrum display of the P3. If you want to know, for example, the bandwidth of a signal at 30 dB down, you just find the points where the 'skirts' of the signal are 30 dB below the peak. This is easy to do on the P3 which can display the signal strength in dBm. Yes. And as N1AL recommends, use peak hold. I've done spectrum plots of various signals and conditions with the P3. I usually set the SCALE for a pretty wide range (like 72 or the full dB), and set the SPAN to about 10 kHz. I use both the Peak Hold Mode and the Average Mode. In both modes, but especially with Peak Hold, we must take care to differentiate sidebands from other stations. I try to set the reference level so that the peak of the signal is at one of the level lines and the noise level is near the bottom of the display. With almost any rig, you'll see small signals down the sides of the slope that are intermod products, and they are usually symmetrical on a CW or RTTY signal. A clean SSB signal should be well confined by the bandpass filter limits of the audio and TX filter skirts. Anything that extends beyond that is IMD. When a rig is badly overdriven, it's common to see splatter as horizontal streaks extending above and below the signal frequency. Last week, I was on 20M SSB trying to work a weak DX station, but what I heard was massive splatter from a QSO about 5 kHz up the band. One guy was relatively clean, but the other was not. I broke the QSO to tell him he was clobbering a weak DX station. Turns out he was an aeronautical mobile using whatever radio was onboard. He didn't know whether he was transmitting AM or SSB, but thought it was AM. I assured him that it was, indeed, USB, and that the problem was that he was likely overdriving it badly. He went QRT to figure it out. As a percentage of transmitted signals, I don't find contesters any better or worse than non-contesters -- we contesters stand out because during a contest, there are a LOT more of us. :) I'm retired, so I have access to the ham bands during the day (when I'm not working on something else). It's not at all uncommon to tune around 30, 40, and 80 during a weekday and hear fewer than a half dozen signals on these bands (if you hear any at all), and no more than a few dozen on most of the higher bands. Compare that to a major contest, when there are several hundred workable signals on every band from any given location for the duration of the contest, and for stations with better antennas, perhaps 2-4X that number. The winners of contests like the ARRL SSB Sweepstakes make more than 2,000 QSOs, and you can work a station only once. 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] KX3 supplemental heat sink offering
Thank-you for your support. The last of the supplemental heat sinks of the current production is on its way to Sweden. I am now accepting pre-production orders for the next generation of Cooler KX heat sinks. Cheers, Fred. -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-supplemental-heat-sink-offering-tp7586146p7588068.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] [P3] How to measure bandwidth of RX signal
David, Your assumption is correct. The P3 should show you the true width of the signal. 73, Don W3FPR On 4/28/2014 10:08 AM, David Cole wrote: Hi, All the ESSB talk got me wondering about how accurate the P3 might be for measuring bandwidth. Could someone review my method for this outlined below and comment please: 1. Use ATT if needed to avoid very strong signals 2. Set bandwidth to 4 KHz. See note below. 3. Adjust Span on P3 5 KHz per side 4. Shaded area above waterfall indicates K3 bandwidth Watch P3. Can one trust the waterfall display to show actual bandwidth? If so, how accurate would it be? Note: I believe that the P3 is tapped prior to any BW restrictions, (of merit to this exercise), so I understand that step 2 is just for my ears only, and does not affect BW display on the P3. Is that a correct assumption? __ 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] How to measure bandwidth of RX signal
Jim, Thank you for the extended explanation, it helps! I want to be sure I understand the rig, the Panadaptor, and how they interrelate. THank you again! -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2014-04-28 at 09:27 -0700, Jim Brown wrote: On 4/28/2014 8:37 AM, Vic Rosenthal K2VCO wrote: What should work is to use the spectrum display of the P3. If you want to know, for example, the bandwidth of a signal at 30 dB down, you just find the points where the 'skirts' of the signal are 30 dB below the peak. This is easy to do on the P3 which can display the signal strength in dBm. Yes. And as N1AL recommends, use peak hold. I've done spectrum plots of various signals and conditions with the P3. I usually set the SCALE for a pretty wide range (like 72 or the full dB), and set the SPAN to about 10 kHz. I use both the Peak Hold Mode and the Average Mode. In both modes, but especially with Peak Hold, we must take care to differentiate sidebands from other stations. I try to set the reference level so that the peak of the signal is at one of the level lines and the noise level is near the bottom of the display. With almost any rig, you'll see small signals down the sides of the slope that are intermod products, and they are usually symmetrical on a CW or RTTY signal. A clean SSB signal should be well confined by the bandpass filter limits of the audio and TX filter skirts. Anything that extends beyond that is IMD. When a rig is badly overdriven, it's common to see splatter as horizontal streaks extending above and below the signal frequency. Last week, I was on 20M SSB trying to work a weak DX station, but what I heard was massive splatter from a QSO about 5 kHz up the band. One guy was relatively clean, but the other was not. I broke the QSO to tell him he was clobbering a weak DX station. Turns out he was an aeronautical mobile using whatever radio was onboard. He didn't know whether he was transmitting AM or SSB, but thought it was AM. I assured him that it was, indeed, USB, and that the problem was that he was likely overdriving it badly. He went QRT to figure it out. As a percentage of transmitted signals, I don't find contesters any better or worse than non-contesters -- we contesters stand out because during a contest, there are a LOT more of us. :) I'm retired, so I have access to the ham bands during the day (when I'm not working on something else). It's not at all uncommon to tune around 30, 40, and 80 during a weekday and hear fewer than a half dozen signals on these bands (if you hear any at all), and no more than a few dozen on most of the higher bands. Compare that to a major contest, when there are several hundred workable signals on every band from any given location for the duration of the contest, and for stations with better antennas, perhaps 2-4X that number. The winners of contests like the ARRL SSB Sweepstakes make more than 2,000 QSOs, and you can work a station only once. 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 d...@nk7z.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] Is there a reason the receive is so Skinny
Of course it is. If you would understand that SSB is simply audio mixed up to R-F, you would not have this mistaken idea. We normally do it in two steps, audio to I-F, I-F to R-F, but that's all it is, a frequency conversion. Certainly, if you take a 2 KHz band of audio frequencies and run the result of the first frequency conversion through a 1 KHz filter, you will band limit the result. However, if you run the same product through a 10 KHz IF filter, you will still get a 2 KHz wide result. The wide filter isn't going to magically widen the transmitted signal. Wes N7WS On 4/27/2014 7:07 PM, XE3/K5ENS via Elecraft wrote: Joe, You of all people should know it's not the same as actually narrowing the IF. You should try both and compare. Keith __ 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] Fry's sale on Logitech keyboard
Fry's has a special discount on the Logitech K360 wireless keyboard that is popular with the P3SVGA. http://www.frys.com/product/7938420?site=frys_promo_ecampaigndate:042814 The in-store price with the secret in-store $6 promo code is only $8. The code is 8313460, which came from their weekly deals email, which you can sign up for at http://www.frys.com/deals 73, Jim N7US __ 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] Is there a reason the receive is so Skinny
Gentlemen, This thread is now closed. I apologize for not stepping in earlier, I was off-line most of the weekend. In general, please do not argue on the Elecraft list pro/con about various emission modes like ESSB, CW vs no-code, QRP vs QRO, Contesting etc and their appropriateness to amateur radio. This list is not a forum for amateur radio policy. Also, impolite discussion is in direct violation of the list guidelines. Also, if you are tempted to use ALL CAPS or Exclamation points (!) in a posting, please do not post. If you feel angry or like you must attack someone, don't. In general waiting overnight and re-reading your proposed posting goes a long way towards self filtering. :-) The delete key works wonders.. Regards, Eric List Moderator elecraft.com On 4/28/2014 12:09 AM, Dennis Mills wrote: STOP IT !! On Apr 27, 2014, at 11:11 PM, mikerodgerske5gbc--- via Elecraft elecraft@mailman.qth.net wrote: While I do not endorse ESSB, it seems to me the dogs were let loose almost immediately. Doesn't this go against list guidelines? I don't understand why Eric let this go on. 73 Mike R __ 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 foldback setting?
Is there a swr foldback setting in in the kx3? I can't find such. my friends kx3 keeps folding power back while swr is 1.1 or 1.2. I suspect it should not until at least 2.1. any help? Reggie k6xr __ 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] W2.exe Question
Is there a way to disable the W2.exe from scanning for W2. I have many virtual com ports on my computer, some of which are over the network, and it takes nearly one minute for it to timeout the scan on program launch. Is there any command line switches to make it not autoscan and try an explicitly defined port only? Chris K6OZY __ 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] Is there a reason the receive is so Skinny
If you understood that if you have 3.0 kHz of IF and clip off some of the lows and some of the highs from the audio. It's not the same as only having 2.3 kHz of IF. Keith -- View this message in context: http://elecraft.365791.n2.nabble.com/Is-there-a-reason-the-receive-is-so-Skinny-tp7587977p7588076.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 foldback setting?
In that case, Rsther than SWR, the fold back is more likely due to low or drooping supply voltage. Could also be due to temperature, if you are running the radio hard. 73, Matt VK2RQ On 29 Apr 2014, at 5:14 am, Reginald J Mackey SR k...@icloud.com wrote: Is there a swr foldback setting in in the kx3? I can't find such. my friends kx3 keeps folding power back while swr is 1.1 or 1.2. I suspect it should not until at least 2.1. any help? Reggie k6xr __ 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 matt.vk...@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
Re: [Elecraft] W2.exe Question
Chris, Go into Setup and select the port that you want to use for the W2. That selection should be sticky. Once that port is selected, it will not scan for eligible ports. 73, Don W3FPR On 4/28/2014 3:15 PM, Chris Johnson wrote: Is there a way to disable the W2.exe from scanning for W2. I have many virtual com ports on my computer, some of which are over the network, and it takes nearly one minute for it to timeout the scan on program launch. Is there any command line switches to make it not autoscan and try an explicitly defined port only? __ 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 foldback setting?
Odds are it's PA temperature issue. I believe the power will roll back when 60 deg-C is reached. That should only happen in high duty cycle modes (digital, FM, etc.), not in CW or SSB. If he's getting roll back in SSB or CW there must be some other issue. 73, Phil w7ox On 4/28/14, 12:14 PM, Reginald J Mackey SR wrote: Is there a swr foldback setting in in the kx3? I can't find such. my friends kx3 keeps folding power back while swr is 1.1 or 1.2. I suspect it should not until at least 2.1. any help? Reggie k6xr __ 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] Elecraft Digest, Vol 120, Issue 68
Thanks, Eric; I had been hoping this would be policed and a reminder issued. I had no part in the discussion; but I must say that it was in some ways and on some contributors' parts a disappointing conversation. The problem is not simply that it takes up space and time, but more importantly that invective and discourtesy, some of which we saw over the last few days, could be a disincentive for someone with a valid question but a thinner skin from posting their query lest they be heaped on as well. (I am not talking about me; as a lawyer I deal with testy dialogue daily - in setting where contentiousness is the name of the game.) Such disincentive would be an unfortunate loss for a reflector which I have found, the other 98% of the time, to be a source of help, understanding, and even camaraderie. Ted, KN1CBR Message: 27 Date: Mon, 28 Apr 2014 11:24:11 -0700 From: Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com To: Dennis Mills dmil...@att.net, mikerodgerske5...@yahoo.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Subject: Re: [Elecraft] Is there a reason the receive is so Skinny Message-ID: 535e9ccb.2060...@elecraft.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Gentlemen, This thread is now closed. I apologize for not stepping in earlier, I was off-line most of the weekend. In general, please do not argue on the Elecraft list pro/con about various emission modes like ESSB, CW vs no-code, QRP vs QRO, Contesting etc and their appropriateness to amateur radio. This list is not a forum for amateur radio policy. Also, impolite discussion is in direct violation of the list guidelines. Also, if you are tempted to use ALL CAPS or Exclamation points (!) in a posting, please do not post. If you feel angry or like you must attack someone, don't. In general waiting overnight and re-reading your proposed posting goes a long way towards self filtering. :-) The delete key works wonders.. Regards, Eric List Moderator 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] Is there a reason the receive is so Skinny
On 4/27/2014 9:26 PM, David Cole wrote: The legal issue will sort itself out. If ESSB does not have it's own emission definition, (one accepted by the FCC), and is classed with SSB, then it is not legal. Both conventional SSB and ESSB have the same emission designator - A3J - when used for voice (phone). The difference is the occupied bandwidth. That's where the argument is. __ 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] How to measure bandwidth of RX signal
For a look at good bandwidth control, tune down into the AM broadcast band with the K3 and P3. Note that AM stations are powerful enough that you can receive them at the upper end of the broadcast band even without the extended receive option for the K3. When I tuned down there in the San Francisco Bay Area, I could see stations right next to each other, each with significant power stretching for nearly the full 10 KHz permitted bandwidth and a very small sliver of clear bandwidth between each station. It is a wonderful demonstration of good spectrum utilisation. Cheers - Bill, AE6JV --- Bill Frantz|We used to quip that password is the most common 408-356-8506 | password. Now it's 'password1.' Who said users haven't www.pwpconsult.com | learned anything about security? -- Bruce Schneier __ 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] W2.exe Question
No, it isn't actually. It scans all com ports when start up. I can see it when it starts up on my remote base. Even when you have selected a port. I actually want a smaller version of the W2 so that it just shows 2 bars. Call it a 'compact' mode view. Mike va3mw On Mon, Apr 28, 2014 at 4:07 PM, Don Wilhelm w3...@embarqmail.com wrote: Chris, Go into Setup and select the port that you want to use for the W2. That selection should be sticky. Once that port is selected, it will not scan for eligible ports. 73, Don W3FPR On 4/28/2014 3:15 PM, Chris Johnson wrote: Is there a way to disable the W2.exe from scanning for W2. I have many virtual com ports on my computer, some of which are over the network, and it takes nearly one minute for it to timeout the scan on program launch. Is there any command line switches to make it not autoscan and try an explicitly defined port only? __ 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 va...@portcredit.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] Is there a reason the receive is so Skinny
Hi Phil - This thread has been closed. Please see my earlier posting. 73, Eric elecraft.com On 4/28/2014 1:41 PM, Phil Kane wrote: On 4/27/2014 9:26 PM, David Cole wrote: The legal issue will sort itself out. If ESSB does not have it's own emission definition, (one accepted by the FCC), and is classed with SSB, then it is not legal. Both conventional SSB and ESSB have the same emission designator - A3J - when used for voice (phone). The difference is the occupied bandwidth. That's where the argument is. __ 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] W2.exe Question
Don maybe should have stated if you have a port selected that is available then it will not scan. Keith -- View this message in context: http://elecraft.365791.n2.nabble.com/W2-exe-Question-tp7588075p7588085.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
[Elecraft] [K2] VCO Not Oscillating
Hi, I've been trying for the last four days to figure out what is wrong with my rig. I'm at Phase 2 Test and Alignment and got to testing the frequency of the VCO. It had a reading of 0. Also the voltage on R30 was 7.87V. This is consistent with the VCO not oscillating. The reference oscillator works fine and was within the expected ranges when I looked at it. What I was able to notice was that U4 on the RF board has two pins with voltage values that are out of spec. Pin 1 has 0.9V and pin 13 has 0V. If I read the table they should be 2.1 and 4V respectively. It also seems that the 0V on pin 13 is causing a 0V reading on pin 6 of U6. Otherwise U6 is in spec. I got out my oscilloscope and got a Vrms of 1.13V on U4 pin 1. There wasn't anything on pins 3 or 6 of U3. The voltages for Q17, Q16, and Q18 are as follows: Q17 E: 0V B: 7.13V C: 0.08V Q16 E: 0V B: 0V C: 7.13V Q18 G: 0.08V S: 6.64V D: 0V I have been measuring and testing voltages and components for the last four days and have run out of things to look at for the moment. If any of you can help me with what my problem is, I would be most grateful. Sincerely, Joseph KI4ITG -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086.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] [P3] How to measure bandwidth of RX signal
On 4/28/2014 8:57 AM, David Cole wrote: Between Vic's, and Alan's answer I have what I need, thank you all!!! I can now measure bandwidth, and tell how many db down a signal is vs. it's width. Thank you gents! As others will probably tell you as well, Occupied Bandwidth is defined as the spectrum occupied between the --26 dB points. This defines 99% of the signal. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Fry's sale on Logitech keyboard
On 4/28/2014 11:10 AM, Jim N7US wrote: Fry's has a special discount on the Logitech K360 wireless keyboard that is popular with the P3SVGA. That's a nice keyboard, but my fingers and brain demand one with the F-keys on the left side, the Ctrl and Alt keys straddling the left-side Shift key, and the keys make very tactile clicks - like God and IBM meant them to be. I have two Northgate keyboards built like that which I have been pounding for over 20 years. Sadly they aren't made any more. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Fry's sale on Logitech keyboard
The only time I remember seeing keyboards with function keys on the left was the summer I interned at Boeing in the 80's, but you can still get buckle spring keyboards (with USB interfaces now) from http://pckeyboard.com/ 73, Byron N6NUL Sent from my iPad On Apr 28, 2014, at 17:44, Phil Kane k2...@kanafi.org wrote: On 4/28/2014 11:10 AM, Jim N7US wrote: Fry's has a special discount on the Logitech K360 wireless keyboard that is popular with the P3SVGA. That's a nice keyboard, but my fingers and brain demand one with the F-keys on the left side, the Ctrl and Alt keys straddling the left-side Shift key, and the keys make very tactile clicks - like God and IBM meant them to be. I have two Northgate keyboards built like that which I have been pounding for over 20 years. Sadly they aren't made any more. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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 by...@n6nul.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] [P3] Fry's sale on Logitech keyboard
I, too, disliked it when the transition to AT-style keyboards, with all of the function keys along the top, was made. Unfortunately, after a while, my old original keyboard, and my wife's, gave out and we had to adjust. My first professional programming jobs involved using the good-old IBM 3278 terminals. However, failing to turn off the tactile click was not a good way to make friends in a programming shop. It also was the mark of a newbie. 73 de Jim - AD6CW On 4/28/2014 5:44 PM, Phil Kane wrote: That's a nice keyboard, but my fingers and brain demand one with the F-keys on the left side, the Ctrl and Alt keys straddling the left-side Shift key, and the keys make very tactile clicks - like God and IBM meant them to be. I have two Northgate keyboards built like that which I have been pounding for over 20 years. Sadly they aren't made any more. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ 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] Fry's sale on Logitech keyboard
Right you are! I think this is what Phil (the other Phil, not this one!) likes: http://pckeyboard.com/page/category/PC122 73, Phil w7ox On 4/28/14, 6:10 PM, Byron N6NUL wrote: The only time I remember seeing keyboards with function keys on the left was the summer I interned at Boeing in the 80's, but you can still get buckle spring keyboards (with USB interfaces now) from http://pckeyboard.com/ 73, Byron N6NUL Sent from my iPad On Apr 28, 2014, at 17:44, Phil Kane k2...@kanafi.org wrote: On 4/28/2014 11:10 AM, Jim N7US wrote: Fry's has a special discount on the Logitech K360 wireless keyboard that is popular with the P3SVGA. That's a nice keyboard, but my fingers and brain demand one with the F-keys on the left side, the Ctrl and Alt keys straddling the left-side Shift key, and the keys make very tactile clicks - like God and IBM meant them to be. I have two Northgate keyboards built like that which I have been pounding for over 20 years. Sadly they aren't made any more. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] [K2] VCO Not Oscillating
Joseph, The first thing to check is T5. The direction of the windings is critical, and the leads must be in the proper holes as shown in the diagrams in the manual. In other words, the sense (direction) of the green wire turns on T5 must be the same as the direction of the red wire winding. If that is correct, the VCO will oscillate, and things usually fall 'into line' after that once L30 is adjusted for the proper voltage at the left end of R30. 73, Don W3FPR On 4/28/2014 8:22 PM, Joseph Baxley via Elecraft wrote: Hi, I've been trying for the last four days to figure out what is wrong with my rig. I'm at Phase 2 Test and Alignment and got to testing the frequency of the VCO. It had a reading of 0. Also the voltage on R30 was 7.87V. This is consistent with the VCO not oscillating. The reference oscillator works fine and was within the expected ranges when I looked at it. What I was able to notice was that U4 on the RF board has two pins with voltage values that are out of spec. Pin 1 has 0.9V and pin 13 has 0V. If I read the table they should be 2.1 and 4V respectively. It also seems that the 0V on pin 13 is causing a 0V reading on pin 6 of U6. Otherwise U6 is in spec. I got out my oscilloscope and got a Vrms of 1.13V on U4 pin 1. There wasn't anything on pins 3 or 6 of U3. The voltages for Q17, Q16, and Q18 are as follows: Q17 E: 0V B: 7.13V C: 0.08V Q16 E: 0V B: 0V C: 7.13V Q18 G: 0.08V S: 6.64V D: 0V I have been measuring and testing voltages and components for the last four days and have run out of things to look at for the moment. If any of you can help me with what my problem is, I would be most grateful. Sincerely, Joseph KI4ITG -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086.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 w3...@embarqmail.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] [K2] VCO Not Oscillating
Don, Thanks for the reply. I should have mentioned that I checked the windings on T5. Pins 1 and 3 should be coming out of the top of the core, no? That's what I have. I also used the yellow core for the transformer. Thanks, Joseph On Monday, April 28, 2014 8:43 PM, Don Wilhelm-4 [via Elecraft] ml-node+s365791n7588092...@n2.nabble.com wrote: Joseph, The first thing to check is T5. The direction of the windings is critical, and the leads must be in the proper holes as shown in the diagrams in the manual. In other words, the sense (direction) of the green wire turns on T5 must be the same as the direction of the red wire winding. If that is correct, the VCO will oscillate, and things usually fall 'into line' after that once L30 is adjusted for the proper voltage at the left end of R30. 73, Don W3FPR On 4/28/2014 8:22 PM, Joseph Baxley via Elecraft wrote: Hi, I've been trying for the last four days to figure out what is wrong with my rig. I'm at Phase 2 Test and Alignment and got to testing the frequency of the VCO. It had a reading of 0. Also the voltage on R30 was 7.87V. This is consistent with the VCO not oscillating. The reference oscillator works fine and was within the expected ranges when I looked at it. What I was able to notice was that U4 on the RF board has two pins with voltage values that are out of spec. Pin 1 has 0.9V and pin 13 has 0V. If I read the table they should be 2.1 and 4V respectively. It also seems that the 0V on pin 13 is causing a 0V reading on pin 6 of U6. Otherwise U6 is in spec. I got out my oscilloscope and got a Vrms of 1.13V on U4 pin 1. There wasn't anything on pins 3 or 6 of U3. The voltages for Q17, Q16, and Q18 are as follows: Q17 E: 0V B: 7.13V C: 0.08V Q16 E: 0V B: 0V C: 7.13V Q18 G: 0.08V S: 6.64V D: 0V I have been measuring and testing voltages and components for the last four days and have run out of things to look at for the moment. If any of you can help me with what my problem is, I would be most grateful. Sincerely, Joseph KI4ITG -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086.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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] If you reply to this email, your message will be added to the discussion below:http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086p7588092.html To unsubscribe from [K2] VCO Not Oscillating, click here. NAML -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086p7588093.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
[Elecraft] K3 - Sub RX audio to right Line Out
I am trying to set up the K3 Sub Rx audio to come out on the right Line Out. I hear nothing on that side. The Main Audio is fine on the left side. I can't find anything about a setting that would control this. I thought it would be automatic. Can someone point me in the right direction please? -- Buck k4ia K3# 101 KX3 #715 __ 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] [K2] VCO Not Oscillating
Yes, leads 1 3 should come out the top of the core. However, you also need to make sure the windings are in the same direction, like in figure 6-16, otherwise you are applying negative instead of positive feedback, and the VCO won't oscillate. Also, make sure leads 1 2 are both red, and go through the core for 16 turns. Leads 3 4 should both be green, and consist of 4 turns. If you get the windings backwards, then the feedback loop won't have sufficient gain, and the VCO won't oscillate. Finally, the other problem that can occur with toroids is that the insulation on the magnet wire wasn't stripped back enough, and there is a poor joint. If this happens, the VCO won't oscillate :-) There are other reasons why the VCO may not oscillate (eg. loading due to solder bridges, components in backwards etc.), but toroids in particular can be quite tricky and confusing, which is why Don suggests to look there first. 73, Matt VK2RQ On 29 Apr 2014, at 11:56 am, Joseph Baxley via Elecraft elecraft@mailman.qth.net wrote: Don, Thanks for the reply. I should have mentioned that I checked the windings on T5. Pins 1 and 3 should be coming out of the top of the core, no? That's what I have. I also used the yellow core for the transformer. Thanks, Joseph On Monday, April 28, 2014 8:43 PM, Don Wilhelm-4 [via Elecraft] ml-node+s365791n7588092...@n2.nabble.com wrote: Joseph, The first thing to check is T5. The direction of the windings is critical, and the leads must be in the proper holes as shown in the diagrams in the manual. In other words, the sense (direction) of the green wire turns on T5 must be the same as the direction of the red wire winding. If that is correct, the VCO will oscillate, and things usually fall 'into line' after that once L30 is adjusted for the proper voltage at the left end of R30. 73, Don W3FPR On 4/28/2014 8:22 PM, Joseph Baxley via Elecraft wrote: Hi, I've been trying for the last four days to figure out what is wrong with my rig. I'm at Phase 2 Test and Alignment and got to testing the frequency of the VCO. It had a reading of 0. Also the voltage on R30 was 7.87V. This is consistent with the VCO not oscillating. The reference oscillator works fine and was within the expected ranges when I looked at it. What I was able to notice was that U4 on the RF board has two pins with voltage values that are out of spec. Pin 1 has 0.9V and pin 13 has 0V. If I read the table they should be 2.1 and 4V respectively. It also seems that the 0V on pin 13 is causing a 0V reading on pin 6 of U6. Otherwise U6 is in spec. I got out my oscilloscope and got a Vrms of 1.13V on U4 pin 1. There wasn't anything on pins 3 or 6 of U3. The voltages for Q17, Q16, and Q18 are as follows: Q17 E: 0V B: 7.13V C: 0.08V Q16 E: 0V B: 0V C: 7.13V Q18 G: 0.08V S: 6.64V D: 0V I have been measuring and testing voltages and components for the last four days and have run out of things to look at for the moment. If any of you can help me with what my problem is, I would be most grateful. Sincerely, Joseph KI4ITG -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086.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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] If you reply to this email, your message will be added to the discussion below:http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086p7588092.html To unsubscribe from [K2] VCO Not Oscillating, click here. NAML -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-VCO-Not-Oscillating-tp7588086p7588093.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
Re: [Elecraft] [K2] VCO Not Oscillating
Joseph, Yes, leads 1 and 3 should be coming out of the top of the core, but the leads must look like the illustration on page 56 of the manual, the green wires must not cross over each other, but be wound between the red wires. You can check with the internal counter probe or the RF Probe to see if the VCO is oscillating. Make certain that the leads of T5 have been well stripped and tinned before inserting and soldering the leads. If you look at the solder connections and see a ring around the toroid lead, it was not well tinned and soldered. In other words, the connection should look like a mountain, but not a volcano. 73, Don W3FPR On 4/28/2014 9:56 PM, Joseph Baxley via Elecraft wrote: Don, Thanks for the reply. I should have mentioned that I checked the windings on T5. Pins 1 and 3 should be coming out of the top of the core, no? That's what I have. I also used the yellow core for the transformer. Thanks, Joseph On Monday, April 28, 2014 8:43 PM, Don Wilhelm-4 [via Elecraft] ml-node+s365791n7588092...@n2.nabble.com wrote: Joseph, The first thing to check is T5. The direction of the windings is critical, and the leads must be in the proper holes as shown in the diagrams in the manual. In other words, the sense (direction) of the green wire turns on T5 must be the same as the direction of the red wire winding. If that is correct, the VCO will oscillate, and things usually fall 'into line' after that once L30 is adjusted for the proper voltage at the left end of R30. __ 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] K3 - Sub RX audio to right Line Out
Can you hear the subrx in the headphones or speaker? - 73, Stan - KR7C -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Sub-RX-audio-to-right-Line-Out-tp7588094p7588097.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
