[Elecraft] Possible K3 Line Input Damage
Recently I've made some configuration changes at my remote station that should in the end improve things. In the short term, however, it has caused problems when working voice. Specifically I was getting feedback if I raised the line out level on the PC too far past a certain threshold which seem to depend on the K3 compressor settings (in case you are wondering, yes, the K3 monitor level was set to 0). Despite these problems, I was able to make some 40 meter SSB contacts Sunday morning during the ARRL DX Phone contest. On Sunday afternoon, I connected to the remote with about ten minutes to go in the contest and heard PY0F calling CQ on 20 meters with a very loud signal. Not having touched the settings from the night before, I figured I would tweak the tuning on the KAT-500 and then just call him. Things did not go well. The rig broke into audio feedback and I lost transmit/receive control for what seemed like a forever, but was probably in reality only about 15 seconds. After I regained control of the rig, I power cycled the rig and then power cycled the computer (I can do that remotely). The K3 still works fine on CW, but I can no longer operate SSB. TeamViewer indicates I am getting audio to the remote site, but the radio no longer responds. I've tried both VOX and manually switching to transmit. Either way, I get nothing. I even tried playing a local audio source on the computer at the remote site which should have gone straight into the K3. I still got nothing. IS IT POSSIBLE TO DAMAGE THE LINE INPUT OF THE K3 IF IT IS OVERDRIVEN BY A SOUNDCARD LINE OUTPUT OR DOES THE K3 SOMEHOW SELF-PROTECT? IF THE FORMER, WHAT PART IN THE K3 SERVES AS THE "FUSE"? I know it is premature to assume the K3 is damaged as I haven't physically been to the remote site test the rig since the incident, but I wanted to understand what the worst-case scenarios might look like. Thanks & 73, Mike W4EF. __ 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] Extra Protection For KPA500?
Being a proponent of the KISS principle, I prefer to let the K3 software run unfettered by macros. Being clever with the use of macros gets overruled by dumb in this case. 73 de Ed __ 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] FOR SALE: K3, P3, PR6-10, K-POD
Fully loaded K3, P3 with P3SVGA option, PR6-10, and K-POD with second receiver and full set of matching filters for each receiver. Both receivers have the upgraded KSYN3A synthesizers. I’m the original owner and the equipment lived in a non-smoking environment. Originally purchased in August 2010 as a kit. All power, interconnecting cables, and original manuals included. Package price $4500 plus shipping and insurance to CONUS. PayPal and certified checks accepted, US sales only. Please contact off list to n...@cox.net Richard, N7NT Mesa, AZ K3/100 100W Transceiver s/n 4639 KAT3Internal ATU with 2nd Antenna Jack KXV3A RX Ant., IF Out and Xverter Interface KDVR3 Digital Voice Recorder KSYN3A Synthesizer KBPF3 General Coverage RX Bandpass Module K3L3A-200 200Hz narrow 5-pole filter K3L3A-400 400Hz narrow 8-pole filter K3L3A-1.8K 1.8kHz 8-pole filter K3L3A-2.1K 2.1kHz 8-pole filter K3L3A-2.8_2.7SW 2.8kHz 8-pole filter KRX3High Performance Second Sub Receiver KSYN3A Synthesizer KBPF3 General Coverage RX Bandpass Module K3L3A-200 200Hz narrow 5-pole filter K3L3A-400 400Hz narrow 8-pole filter K3L3A-1.8K 1.8kHz 8-pole filter K3L3A-2.1K 2.1kHz 8-pole filter K3L3A-2.8_2.7SW 2.8kHz 8-pole filter KFLMATCHMatching of 5-pole filters PR6-10 6 and 10 Meter Receive Preamplifier K-POD Remote Control Panel P3 Panadapter s/n 547 P3SVGA Panadapter SVGA Adapter __ 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] KAT500 antenna selection
Kent - In addition, special rules are in place for operation on 630 meters and 2200 meters: Section 97.313(g)(2) of the rules requires that, prior to starting operation in either band, radio amateurs must notify UTC that they intend operate by submitting their call signs, intended band(s) of operation, and the coordinates of their antenna’s fixed location. The new rules do not permit any mobile operation. http://www.arrl.org/news/fcc-opens-630-and-2200-meter-bands-stations-must-notify-utc-before-operating I received approval to do so in November, 2017. Here’s the website for those who may be interested: https://utc.org/plc-database-amateur-notification-process/ 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KENT TRIMBLE Sent: Monday, March 09, 2020 9:35 AM To: Elecraft Subject: Re: [Elecraft] KAT500 antenna selection Deja Vu. Virtually none of the U.S. manufacturers after WW-II (with some exceptions) included 160-meters in their transmitters or ham-band only receivers for at least three reasons: 1) LORAN precluded use in some parts of the United States; (2) small urban lots precluded dipoles in the air, and long radials precluded verticals on the ground; and (3) the market wasn't there. It wasn't until LORAN disappeared and hams got interested in 160 that the band started showing up on imported Japanese transceivers. Until a substantial commercial market develops, 630 meters will be home-brewed only. 73, Kent K9ZTV On 3/7/2020 3:07 PM, Lyn Norstad wrote: > Bob - > > If you are addressing me, I am afraid that you are misinterpreting my remarks. > > I bought the unit knowing full well what the tradeoffs were. The > capabilities it has more than offset that deficiency. > > I just wish it also covered 630, but apparently "shame on me" for even > suggesting there might be a feature or two that could be beneficially added. > > 73 > Lyn, WØLEN > > > > -Original Message- > From: Bob McGraw K4TAX > Sent: Saturday, March 07, 2020 1:27 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] KAT500 antenna selection > > If it doesn't do what you need and your needs are outside of the > specifications, then one needs to ask "why did I purchase this item?". > The fact it does not cover 630 meters is understandable and is not a > fault of Elecraft or the KAT500. The frequency range covered, per the > specs, is 1.8 to 54 MHz, continuous. > > I have no sympathy, patience or understanding as to why someone wants to > use an item outside of the design specifications. It just makes no > sense at all. I often say if one wants to know where the issue lies, go > look in the mirror. > > 73 > > Bob, K4TAX > > -- This email has been checked for viruses by AVG. https://www.avg.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 l...@lnainc.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] Where is Elecraft Support ?
Hi Lee, We definitely do! :-) If you emailed later on Friday afternoon or over the weekend, their response can be delayed on Mondays as they work their way through the weekend backlog. Also our CS team was hit hard by the seasonal flu (-not- the Corona virus..) the last two weeks and was down to 50% staffing on a number of days. Eric elecraft.com --- Sent from my iPhone 6S > On Mar 7, 2020, at 10:30 AM, Leroy Buller wrote: > > Does Elecraft still have a support department or have they all move to K4 > side? I emailed the several days ago and no response . They have always > been very prompt before or is the frenzied activity to get the K4 out > stopped up the plumbing? > > Lee. K0WA > __ > 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] Extra Protection For KPA500?
Well there is one exception to the idiot-proofing and that occurrs if you use macros that have the PCxxx command in them for setting power. Under certain conditions if a PCxxx command is used in a macro it can overide the CONFIG:PWR SET Per bAnd setting. I have removed all PCxxx commands from my macros until I understand this completely and have tested each macro. I got the following from Elecraft Support and have been testing each macro to determine if the PCxxx command creates a problem. Nothing replaces the Mark1 eyeball to verify, de Dave K5MWR Power Set/Per Band is activated at the time of a band change. If your macro runs after the band change, the macro dominates--and vice versa. (The last one rules, in other words). Similarly, if the amplifier changes from STBY to OPER after the macro runs, the power will change to the stored OPER power level. Note that it is likely that if your macro sets a power level, that level will become the new default power for either the K3's STBY or OPER transmit level, depending upon which mode the K3/amplifier is at the time the macro runs. To use even more words (hi), if the amp is in OPER on 20m and you run a macro setting TX power to 75W, that will be the stored power level--whether you transmit or not. The next time the K3 is on 20m and the amplifier is switched to OPER mode, the K3 will return to that last-used AMP = OPER mode power level of 75 W. (And the amp will throw an overdrive fault when you transmit). On 3/8/2020 16:06, k...@juno.com wrote: Having followed this thread, I can heartily endorse Elecraft's method of idiot-proofing K3 power control when used with the KPA500. I have tuned each band for maximum output (except 200W on 30 meters per regulations). When the amp is in standby and I key the K3, I see the output level on the amp's display. When switching to operate, I get the prescribed amplifier output. A momentary touch of the K3 PWR knob shows the drive level (17 - 25 watts, band-dependent). Technology has finally found a way to minimize blown amps during the wee hours of a contest! 73 de Ed Urologist Tells Men To "Fix" Their ED With This New Trick! Med Journal http://thirdpartyoffers.juno.com/TGL3141/5e655eae6fb2f5eae5e62st02vuc __ 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 do...@suddenlink.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] 40 meter Elecraft net
Regarding the 40 meter net. I was in error on the time. *We meet at 1845Z.* Carl, thank for pointing out my mistake. WM6P On Mon, Mar 9, 2020 at 8:20 AM Steve Hall <99sun...@gmail.com> wrote: > We did not have a problem on 40 with the contest and all signals > were good. Join us next Sunday at 1800z, 7.280 MHz. > > Check-ins as follows: > > WM6P Steve GA K3s 11453 > K8NUCarl OH FT857 K3s in for repairs > WA3TWA Mel NC K3 > KF5ZHW Lloyd TX Icom > K1LSB MarkTX Anan 7000 > > > > __ 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] ECN time change in effect
Good thinking. The Collins Collectors Assn. net has been on 14.263 @ 2000Z for many years. Sticking with UTC is the only option that makes sense unless a net is strictly local as on 2M FM for example. 73, Charlie k3ICH -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of kevinr Sent: Sunday, March 08, 2020 1:34 AM To: Elecraft Reflector Subject: [Elecraft] ECN time change in effect A little errata: Daylight Savings Time once again caught me unaware. Since the bands have been favorable to us the last few weeks I think we should not really change. The local times will change while UTC will remain the same like last year. If the sun ever awakens we'll reassess the net times. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7047 kHz at z Monday (5 PM PDT Sunday) 73, Kevin. KD5ONS _ __ 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 pin...@erols.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] KXFL3 Adjustments
Mike, I assume you are using the internal oscillator. Do you have a 2 turn loop on that 'piece of small coax'? If not, you will not have a sufficiently strong signal. Set the menu values back to the defaults and try again. 73, Don W3FPR On 3/8/2020 10:49 PM, Mike Short wrote: I am doing the alignment following the install, and I do not hear any difference regardless of phase/gain, or preamp setting. There is also no difference in S meter display either. I am using a piece of small coax as the pickup antenna. Any suggestions? __ 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] KAT500 antenna selection
Deja Vu. Virtually none of the U.S. manufacturers after WW-II (with some exceptions) included 160-meters in their transmitters or ham-band only receivers for at least three reasons: 1) LORAN precluded use in some parts of the United States; (2) small urban lots precluded dipoles in the air, and long radials precluded verticals on the ground; and (3) the market wasn't there. It wasn't until LORAN disappeared and hams got interested in 160 that the band started showing up on imported Japanese transceivers. Until a substantial commercial market develops, 630 meters will be home-brewed only. 73, Kent K9ZTV On 3/7/2020 3:07 PM, Lyn Norstad wrote: Bob - If you are addressing me, I am afraid that you are misinterpreting my remarks. I bought the unit knowing full well what the tradeoffs were. The capabilities it has more than offset that deficiency. I just wish it also covered 630, but apparently "shame on me" for even suggesting there might be a feature or two that could be beneficially added. 73 Lyn, WØLEN -Original Message- From: Bob McGraw K4TAX Sent: Saturday, March 07, 2020 1:27 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KAT500 antenna selection If it doesn't do what you need and your needs are outside of the specifications, then one needs to ask "why did I purchase this item?". The fact it does not cover 630 meters is understandable and is not a fault of Elecraft or the KAT500. The frequency range covered, per the specs, is 1.8 to 54 MHz, continuous. I have no sympathy, patience or understanding as to why someone wants to use an item outside of the design specifications. It just makes no sense at all. I often say if one wants to know where the issue lies, go look in the mirror. 73 Bob, K4TAX -- This email has been checked for viruses by AVG. https://www.avg.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] 40 meter Elecraft net
We did not have a problem on 40 with the contest and all signals were good. Join us next Sunday at 1800z, 7.280 MHz. Check-ins as follows: WM6P Steve GA K3s 11453 K8NUCarl OH FT857 K3s in for repairs WA3TWA Mel NC K3 KF5ZHW Lloyd TX Icom K1LSB MarkTX Anan 7000 __ 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
