Did anybody sa: Chack what antenna in use
> elecraft-requ...@mailman.qth.net kirjoitti 28.1.2025 kello 19.00: > > Send Elecraft mailing list submissions to > elecraft@mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to > elecraft-requ...@mailman.qth.net > > You can reach the person managing the list at > elecraft-ow...@mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. K3 doesn't receive (n0...@juno.com) > 2. Re: K3 doesn't receive (Rick nk7i) > 3. Re: K3 doesn't receive (David Hachadorian) > 4. Re: K3 doesn't receive (Bill Hammond) > 5. KAT3 vs KAT3A in K3S (Samir Popaja) > 6. Re: K3 doesn't receive (CG) > 7. Re: Elecraft CW Net Report (eckhart.neum...@icloud.com) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 27 Jan 2025 15:31:18 -0600 > From: <n0...@juno.com> > To: Elecraft@mailman.qth.net > Subject: [Elecraft] K3 doesn't receive > Message-ID: <aabv3r9a3apvt...@smtpout02.vgs.untd.com> > Content-Type: text/plain; charset=us-ascii > > Hi Gents, > > My K3 has a problem and it's intermittent. Maybe someone > has had the same issue and knows of a possible remedy. > Here are the symptoms: > 1. Switch on radio. Nothing being received except I can > hear the neighbor's electric fencer and I can hear *some* "normal" > powerline noise. NO signals heard on the AM Broadcast Band > which is very unusual. It's like the signals that need to be > processed/demodulated aren't. > 2. Radio doesn't transmit when the no receive problem occurs. > 3. Turn off radio... > 4. Turn radio on and everything is normal, sometimes. > 5. It doesn't seem to matter if the radio is warmed up or not. > 6. Voltage to the radio is okay at all times. > 7. Audio out is okay at all times., i.e it isn't totally dead. > 8. Gently "banging" on the radio doesn't help...connections all > okay in back of the radio. > 9. I can hear some noise increase/decrease when the RX pre-amp > is switched in/out. > 10. The attached P3 sometimes won't update either when the freq > is changed...recycle the K3's power switch and then all okay > with the P3....might be a separate issue. > 11. Other bands have the same "no receive" problem. > > So...any ideas to help me zero-in on something to check first after > I open the covers? > > Thanks, > Charlie, N0TT > > > > ------------------------------ > > Message: 2 > Date: Mon, 27 Jan 2025 14:08:42 -0800 > From: Rick nk7i <rick.n...@gmail.com> > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 doesn't receive > Message-ID: <9cdfcf85-d55f-4839-b47b-70d4b5b4f...@gmail.com> > Content-Type: text/plain; charset=UTF-8; format=flowed > > I suggest the synthesizer/s.? Power off; pop the top; pull and reseat > it/them.? It/they is/are a small card towards the face of the rig as I > recall. > > Then EACH of the TMP connectors (a slight twist of the CONNECTOR, not > the wire cable). > > There may be some cruft build up after time (small corrosions; flexes > from heat/cool cycles)... > > Then it gets interesting if the problem remains. > > 73, > Rick nk7i > > > On 1/27/2025 1:31 PM, n0...@juno.com wrote: >> Hi Gents, >> >> My K3 has a problem and it's intermittent. Maybe someone >> has had the same issue and knows of a possible remedy. >> Here are the symptoms: >> 1. Switch on radio. Nothing being received except I can >> hear the neighbor's electric fencer and I can hear *some* "normal" >> powerline noise. NO signals heard on the AM Broadcast Band >> which is very unusual. It's like the signals that need to be >> processed/demodulated aren't. >> 2. Radio doesn't transmit when the no receive problem occurs. >> 3. Turn off radio... >> 4. Turn radio on and everything is normal, sometimes. >> 5. It doesn't seem to matter if the radio is warmed up or not. >> 6. Voltage to the radio is okay at all times. >> 7. Audio out is okay at all times., i.e it isn't totally dead. >> 8. Gently "banging" on the radio doesn't help...connections all >> okay in back of the radio. >> 9. I can hear some noise increase/decrease when the RX pre-amp >> is switched in/out. >> 10. The attached P3 sometimes won't update either when the freq >> is changed...recycle the K3's power switch and then all okay >> with the P3....might be a separate issue. >> 11. Other bands have the same "no receive" problem. >> >> So...any ideas to help me zero-in on something to check first after >> I open the covers? >> >> Thanks, >> Charlie, N0TT >> >> ______________________________________________________________ >> 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 torick.n...@gmail.com > > ------------------------------ > > Message: 3 > Date: Mon, 27 Jan 2025 17:02:18 -0700 > From: David Hachadorian <k6ll.d...@gmail.com> > To: n0...@juno.com, Reflector Elecraft <elecraft@mailman.qth.net> > Subject: Re: [Elecraft] K3 doesn't receive > Message-ID: <ffce4ba7-62b8-445a-82c5-48daf7f92...@gmail.com> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Does your K3 have gold front panel pins?? The older tinned pins caused a > lot of intermittent problems.? I think the changeover to gold happened > around serial #5500. > > Before I replaced mine with gold, I got so I could remove the front > panel, spray the tin pins with DeoxIT, and reassemble the radio in under > 20 minutes. It was like a Wood Brothers NASCAR pit stop. > > GL! > > Dave Hachadorian, K6LL > Yuma, AZ > > > On 1/27/2025 2:31 PM, n0...@juno.com wrote: >> Hi Gents, >> >> My K3 has a problem and it's intermittent. Maybe someone >> has had the same issue and knows of a possible remedy. >> Here are the symptoms: >> 1. Switch on radio. Nothing being received except I can >> hear the neighbor's electric fencer and I can hear *some* "normal" >> powerline noise. NO signals heard on the AM Broadcast Band >> which is very unusual. It's like the signals that need to be >> processed/demodulated aren't. >> 2. Radio doesn't transmit when the no receive problem occurs. >> 3. Turn off radio... >> 4. Turn radio on and everything is normal, sometimes. >> 5. It doesn't seem to matter if the radio is warmed up or not. >> 6. Voltage to the radio is okay at all times. >> 7. Audio out is okay at all times., i.e it isn't totally dead. >> 8. Gently "banging" on the radio doesn't help...connections all >> okay in back of the radio. >> 9. I can hear some noise increase/decrease when the RX pre-amp >> is switched in/out. >> 10. The attached P3 sometimes won't update either when the freq >> is changed...recycle the K3's power switch and then all okay >> with the P3....might be a separate issue. >> 11. Other bands have the same "no receive" problem. >> >> So...any ideas to help me zero-in on something to check first after >> I open the covers? >> >> Thanks, >> Charlie, N0TT >> >> ______________________________________________________________ >> 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 tok6ll.d...@gmail.com > > > ------------------------------ > > Message: 4 > Date: Mon, 27 Jan 2025 18:18:37 -0600 > From: Bill Hammond <a...@me.com> > To: David Hachadorian <k6ll.d...@gmail.com> > Cc: n0...@juno.com, Reflector Elecraft <elecraft@mailman.qth.net> > Subject: Re: [Elecraft] K3 doesn't receive > Message-ID: <95f254e0-1142-45e2-ad9d-e7ec72277...@me.com> > Content-Type: text/plain; charset=utf-8 > > Things to check: > Pins if not gold > D25 and other pin diodes in the QSK circuit. > The several push function knob circuits, a stuck knob causes very strange > issues depending on what is stuck. > Yes, the internal push in coax jumpers. Reset them all. > > After that just normal troubleshooting, checking all internal power circuits > first. > > 73, Bill AK5X > Sent from my iPhone > >> On Jan 27, 2025, at 6:02?PM, David Hachadorian <k6ll.d...@gmail.com> wrote: >> >> ?Does your K3 have gold front panel pins? The older tinned pins caused a >> lot of intermittent problems. I think the changeover to gold happened >> around serial #5500. >> >> Before I replaced mine with gold, I got so I could remove the front panel, >> spray the tin pins with DeoxIT, and reassemble the radio in under 20 >> minutes. It was like a Wood Brothers NASCAR pit stop. >> >> GL! >> >> Dave Hachadorian, K6LL >> Yuma, AZ >> >> >>> On 1/27/2025 2:31 PM, n0...@juno.com wrote: >>> Hi Gents, >>> >>> My K3 has a problem and it's intermittent. Maybe someone >>> has had the same issue and knows of a possible remedy. >>> Here are the symptoms: >>> 1. Switch on radio. Nothing being received except I can >>> hear the neighbor's electric fencer and I can hear *some* "normal" >>> powerline noise. NO signals heard on the AM Broadcast Band >>> which is very unusual. It's like the signals that need to be >>> processed/demodulated aren't. >>> 2. Radio doesn't transmit when the no receive problem occurs. >>> 3. Turn off radio... >>> 4. Turn radio on and everything is normal, sometimes. >>> 5. It doesn't seem to matter if the radio is warmed up or not. >>> 6. Voltage to the radio is okay at all times. >>> 7. Audio out is okay at all times., i.e it isn't totally dead. >>> 8. Gently "banging" on the radio doesn't help...connections all >>> okay in back of the radio. >>> 9. I can hear some noise increase/decrease when the RX pre-amp >>> is switched in/out. >>> 10. The attached P3 sometimes won't update either when the freq >>> is changed...recycle the K3's power switch and then all okay >>> with the P3....might be a separate issue. >>> 11. Other bands have the same "no receive" problem. >>> >>> So...any ideas to help me zero-in on something to check first after >>> I open the covers? >>> >>> Thanks, >>> Charlie, N0TT >>> >>> ______________________________________________________________ >>> 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 tok6ll.d...@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 a...@me.com > > > ------------------------------ > > Message: 5 > Date: Tue, 28 Jan 2025 09:57:12 +0100 > From: Samir Popaja <sm7...@gmail.com> > To: elecraft@mailman.qth.net > Subject: [Elecraft] KAT3 vs KAT3A in K3S > Message-ID: > <CAOvBGYL_NXycLrdxBHkkm4zi=wojomkzu3fb2thcfmdsap_...@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > Hi, > > I'm wondering if KAT3 is OK to put in K3S? > > What's the difference between these two? > > Thanks in advance. > > Samir, sm7vzx > > > ------------------------------ > > Message: 6 > Date: Tue, 28 Jan 2025 10:03:25 +0100 > From: CG <f1...@free.fr> > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 doesn't receive > Message-ID: <abe43e49-1db1-4683-b6de-012a43d27...@free.fr> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Hi Charlie, > > I had a similar issue with my K3s (real one - not upgraded K3): 30 dB > attenuation or so on all received bands. I used a RF generator set to > -10 dBm (100 micro Watt) connected to the RF input (with microphone > disconnected to avoid chance transmitting into the generator). And > traced the signal through the circuits, guided by the available > schematic, with a high impedance (100 kOhms) RF voltmeter. Finally > spotted the cause: a dead PIN diode. Replaced the guy and... had a > cigar! Don't remember the designator, but can retrieve it for you if > needed (however K3 and K3s may be different, and anyway another PIN > diode may also be involved). > > You didn't tell us if you estimate having sufficient electronic skills > and/or experience to dig into the rig. And say if you own the described > equipment; if not you may buy a low cost used generator from the bay or > a small synthesizer from Amaz or Ali , and make a home-built sniffer > probe with a Shottky diode + capacitor connected to a low range > voltmeter, preferably electronic, to track the signal. A min 20-30 MHz > oscilloscope may also be used. > > HTH, > > Christian F1GWR > >> On 1/27/2025 1:31 PM, n0...@juno.com wrote: >>> Hi Gents, >>> >>> My K3 has a problem and it's intermittent.? Maybe someone >>> has had the same issue and knows of a possible remedy. >>> Here are the symptoms: >>> 1.? Switch on radio.? Nothing being received except I can >>> ????? hear the neighbor's electric fencer and I can hear *some* "normal" >>> ????? powerline noise.? NO signals heard on the AM Broadcast Band >>> ????? which is very unusual.? It's like the signals that need to be >>> ????? processed/demodulated aren't. >>> 2.? Radio doesn't transmit when the no receive problem occurs. >>> 3.? Turn off radio... >>> 4.? Turn radio on and everything is normal, sometimes. >>> 5.? It doesn't seem to matter if the radio is warmed up or not. >>> 6.? Voltage to the radio is okay at all times. >>> 7.? Audio out is okay at all times., i.e it isn't totally dead. >>> 8.? Gently "banging" on the radio doesn't help...connections all >>> ????? okay in back of the radio. >>> 9.? I can hear some noise increase/decrease when the RX pre-amp >>> ????? is switched in/out. >>> 10.? The attached P3 sometimes won't update either when the freq >>> ??????? is changed...recycle the K3's power switch and then all okay >>> ??????? with the P3....might be a separate issue. >>> 11.? Other bands have the same "no receive" problem. >>> >>> So...any ideas to help me zero-in on something to check first after >>> I open the covers? >>> >>> Thanks, >>> Charlie, N0TT > > > ------------------------------ > > Message: 7 > Date: Tue, 28 Jan 2025 14:05:48 +0100 > From: eckhart.neum...@icloud.com > To: kevin <kev...@coho.net> > Cc: Elecraft Reflector <elecraft@mailman.qth.net> > Subject: Re: [Elecraft] Elecraft CW Net Report > Message-ID: <826b449d-ad63-4b21-a4f5-42a37d22e...@icloud.com> > Content-Type: text/plain; charset=utf-8 > > Hello > > Looking for . Elecraft PX3 > > Eckhart, DK2LJ. Email on qrz,com > >> Am 27.01.2025 um 04:05 schrieb kevin <kev...@coho.net>: >> >> Good Evening, >> >> Both bands were OK. Moderate QSB on 20 meters, some light QSB on 40 m. >> Noise was higher on 20 meters by quite a bit. Forty had some. Conditions >> did not change as much during the net. The sky was still bright when I got >> done. >> >> >> On 14050.5 kHz at 2300z: >> >> W0CZ - Ken - ND >> >> NO8V - John - MI >> >> K4JPN - Steve - GA >> >> WJ7S - John - UT >> >> K6XK - Roy - IA >> >> K0DTJ - Brian - CA >> >> W8OV - Dave - TX >> >> >> On 7047.5 kHz at 0100z: >> >> W0CZ - Ken - ND >> >> K4TO - Dave - KY >> >> K0DTJ - Brian - CA >> >> K6PJV - Dale - CA >> >> WM5F - Dwight - ID >> >> >> Until next week 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 eckhart.neum...@icloud.com > > > Eckhart Neumann > > Psychoanalytiker DGPT > Sommerfelderstrasse 17a > 53639 K?nigswinter > > > > > ------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > http://mailman.qth.net/mailman/listinfo/elecraft > You must be a subscriber to post. > Elecraft web page: http://www.elecraft.com > > End of Elecraft Digest, Vol 249, Issue 27 > ***************************************** ______________________________________________________________ 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
