[Elecraft] KX3 BC Breakthrough
After being QRT for a number of years I'm returning to the air with a new call and location. I am seriously considering buying a KX3 (I have a K2 and a K1), but I'm a little concerned by reports of AM breakthrough (or whatever the right word is). I know this is because of the direct conversion architecture of the rig. I also understand that the IK can be shifted to 8KHz, which should solve the problem, but in doing so makes the narrower roofing filters and dual watch inoperable. How many owners are having problems with AM BC breakthrough. I guess it's mainly an EU problem. I'm located in Dublin, EI. 73, Paul EI5KI (and M0CDP) __ 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
[Elecraft] Vedr: KX3 BC Breakthrough
I have breakthrough on my KX3. It is most notably on 40 m. I wouldn't Call it a problem, but it is annoying. Martin Storli LA8OKA Oslo, Norway ARCTICPEAK's Radio pages! http://www.arcticpeak.com/radio.htm Fra: Paul Barlow paul.bar...@upcmail.ie Til: elecraft@mailman.qth.net Sendt: Torsdag, 15. august 2013 12.52 Emne: [Elecraft] KX3 BC Breakthrough After being QRT for a number of years I'm returning to the air with a new call and location. I am seriously considering buying a KX3 (I have a K2 and a K1), but I'm a little concerned by reports of AM breakthrough (or whatever the right word is). I know this is because of the direct conversion architecture of the rig. I also understand that the IK can be shifted to 8KHz, which should solve the problem, but in doing so makes the narrower roofing filters and dual watch inoperable. How many owners are having problems with AM BC breakthrough. I guess it's mainly an EU problem. I'm located in Dublin, EI. 73, Paul EI5KI (and M0CDP) __ 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 __ 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
Re: [Elecraft] Vedr: KX3 BC Breakthrough
...I have AM-Breakthrough mostly in the afternoon on 20 and 15m... 73 de Uwe, DL4AC 2013/8/15 Martin Storli - LA8OKA arcticp...@yahoo.no I have breakthrough on my KX3. It is most notably on 40 m. I wouldn't Call it a problem, but it is annoying. Martin Storli LA8OKA Oslo, Norway ARCTICPEAK's Radio pages! http://www.arcticpeak.com/radio.htm Fra: Paul Barlow paul.bar...@upcmail.ie Til: elecraft@mailman.qth.net Sendt: Torsdag, 15. august 2013 12.52 Emne: [Elecraft] KX3 BC Breakthrough After being QRT for a number of years I'm returning to the air with a new call and location. I am seriously considering buying a KX3 (I have a K2 and a K1), but I'm a little concerned by reports of AM breakthrough (or whatever the right word is). I know this is because of the direct conversion architecture of the rig. I also understand that the IK can be shifted to 8KHz, which should solve the problem, but in doing so makes the narrower roofing filters and dual watch inoperable. How many owners are having problems with AM BC breakthrough. I guess it's mainly an EU problem. I'm located in Dublin, EI. 73, Paul EI5KI (and M0CDP) __ 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 __ 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 __ 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
[Elecraft] [K3] Belated Thanks (was: Hearing Aids, Meet K3)
I want to thank all of you who responded to my post. I got the answers I needed plus much more interesting info. I'm really looking forward to playing with the programming and pairing the hearing aids with all my bluetooth devices! 73 Don NA6Z __ 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
Re: [Elecraft] Loop antenna's
Here is a good antennae discussion reflector email address, which is more appropriate than the Elecraft list: anten...@mailman.qth.net. Try it you'll like it. 73, Tom Amateur Radio Operator N5GE Licensed since 1976 ARRL Lifetime Member QCWA Lifetime Member On Wed, 14 Aug 2013 08:44:33 -0400, Stan sjl...@optonline.net wrote: Well said, Bill. I used to sign /QRP but stopped doing that routinely and increased my CQ return rate. Nowadays I do not mention my attic doublet unless the subject comes up. Why shoot myself in the foot... I have nothing against small loops. I built a simple 40 meter STL from about 8 feet of hardline and used inductive coupling and it was very, very impressive. Then I built the mother of all loops from Home Depot 2 inch copper tubing, an Edmunds Scientific 1 rpm motor, and a Jennings vacuum variable. Cost me over $500 ! It was for 20 meters only. It worked amazingly well, including a QRPp contact with UA1CE not once, but twice. The reason I abandoned small loops was a practical one -- frequency agility. Because I had the option, I installed my remotely coupled multiband attic doublet. My advice to those dealing with antenna restrictions is to consider small loops along with other solutions if the opportunity is there but not to view a small loop as something magical and mystical. My QRPp QSO with Gene could have occurred with a wet noodle if the conditions were right. 73, Stan WB2LQF Sent from Samsung tabletBill - K6IH k...@arrl.net wrote:Howdy to all, I don't think anyone will question the fact that a good antenna system is one of the most important factors in a ham station being able to communicate efficiently particularly when using qrp power levels. While I would agree that a full length dipole antenna, or beam antenna would be preferable to a smaller 3' loop antenna, in my case that is not only impractical but impossible at my home qth since I live in a high rise building that has steel supports throughout the building instead of wooden studs. This effectively makes the interior of my high rise apartment inside of a faraday rf shield and prevents most radio signals from radiating or receiving when using an antenna inside of my apartment. This means an antenna has to be mounted outside of the apartment, and the balcony is the only area available to install an antenna. With such a limited area to install an amateur antenna, I find the MFJ 3' loop to be one of the better alternatives to be able to operate my ham station on the hf bands, and still be able to change bands and tune the antenna remotely with the MFJ Remote Control Unit. With the myriad of various CCR's and antenna restrictions around the USA, many hams are forced to utilize compromise antenna systems to operate from their home qth, and finding the best alternative antenna configuration for an individual ham's location can be challenging. Therefore, I am very pleased with the various Loop antennas available from various ham vendor sources, since it allows many hams the capability to get on the air, when they might not be able to do so without the smaller loop antennas. Before deciding that hf ham radio operation is not feasible from an antenna restricted location, I would encourage a person facing such restrictions to seriously consider trying a loop antenna. 73, --Bill - K6IH- __ 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 __ 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 __ 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
Re: [Elecraft] Loop antenna's
Good discussions. No silver bullet. I am trying to decide what to do when travling, often by bike and overseas. My current strategy is close to half wave vertical. But shooting with a slingshot takes time. A small fiberglass pole (2 .5 folded', 22' unfolded) may help when trees are not around. Also, sometimes the performance is not that good because of poor soil conductivity or lack of higher angle of radiation. I am tempted to have a dipole with TV line but it is an extra hassle. Also good performance is not be there until half a wave high. I had best luck with long wire, which can also be described as a form of inv L. But it needs a second support. 73, Ignacy, NO9E On Thu, Aug 15, 2013 at 12:10 PM, N5GE [via Elecraft] ml-node+s365791n757774...@n2.nabble.com wrote: Here is a good antennae discussion reflector email address, which is more appropriate than the Elecraft list: [hidden email]http://user/SendEmail.jtp?type=nodenode=7577741i=0. Try it you'll like it. 73, Tom Amateur Radio Operator N5GE Licensed since 1976 ARRL Lifetime Member QCWA Lifetime Member On Wed, 14 Aug 2013 08:44:33 -0400, Stan [hidden email]http://user/SendEmail.jtp?type=nodenode=7577741i=1 wrote: Well said, Bill. I used to sign /QRP but stopped doing that routinely and increased my CQ return rate. Nowadays I do not mention my attic doublet unless the subject comes up. Why shoot myself in the foot... I have nothing against small loops. I built a simple 40 meter STL from about 8 feet of hardline and used inductive coupling and it was very, very impressive. Then I built the mother of all loops from Home Depot 2 inch copper tubing, an Edmunds Scientific 1 rpm motor, and a Jennings vacuum variable. Cost me over $500 ! It was for 20 meters only. It worked amazingly well, including a QRPp contact with UA1CE not once, but twice. The reason I abandoned small loops was a practical one -- frequency agility. Because I had the option, I installed my remotely coupled multiband attic doublet. My advice to those dealing with antenna restrictions is to consider small loops along with other solutions if the opportunity is there but not to view a small loop as something magical and mystical. My QRPp QSO with Gene could have occurred with a wet noodle if the conditions were right. 73, Stan WB2LQF Sent from Samsung tabletBill - K6IH [hidden email]http://user/SendEmail.jtp?type=nodenode=7577741i=2 wrote:Howdy to all, I don't think anyone will question the fact that a good antenna system is one of the most important factors in a ham station being able to communicate efficiently particularly when using qrp power levels. While I would agree that a full length dipole antenna, or beam antenna would be preferable to a smaller 3' loop antenna, in my case that is not only impractical but impossible at my home qth since I live in a high rise building that has steel supports throughout the building instead of wooden studs. This effectively makes the interior of my high rise apartment inside of a faraday rf shield and prevents most radio signals from radiating or receiving when using an antenna inside of my apartment. This means an antenna has to be mounted outside of the apartment, and the balcony is the only area available to install an antenna. With such a limited area to install an amateur antenna, I find the MFJ 3' loop to be one of the better alternatives to be able to operate my ham station on the hf bands, and still be able to change bands and tune the antenna remotely with the MFJ Remote Control Unit. With the myriad of various CCR's and antenna restrictions around the USA, many hams are forced to utilize compromise antenna systems to operate from their home qth, and finding the best alternative antenna configuration for an individual ham's location can be challenging. Therefore, I am very pleased with the various Loop antennas available from various ham vendor sources, since it allows many hams the capability to get on the air, when they might not be able to do so without the smaller loop antennas. Before deciding that hf ham radio operation is not feasible from an antenna restricted location, I would encourage a person facing such restrictions to seriously consider trying a loop antenna. 73, --Bill - K6IH- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=7577741i=3 This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email]http://user/SendEmail.jtp?type=nodenode=7577741i=4 This
[Elecraft] K3/KX3 after market PTO knobs
Does anyone know if the after market metal PTO main and sub tuning knobs for the K3 or KX3 (main PTO) will damage or cause pre-mature wear and tear on the optical encoders? Any feed back on how the weighted metal PTO will improve the feel while tuning would be welcome. They are kind of expensive. Are they really worth the extra expense. Please respond directly to my home e-mail address if possible, thanks. Bob Wilderman K3SRO dlrwi...@verizon.net K3 #4669 K1-4 #2701 __ 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
Re: [Elecraft] Loop antenna's
Loop at a opec multi ban vertical . I have oped for 1 for hf backpack ... and I just add a trailing ground radial. you can set it up on a tripod also ... -- R.Neese KB3VGW __ 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
Re: [Elecraft] KX3 BC Breakthrough
Hi Paul, The vast majority of KX3 users don't have any issues with strong AM broadcast stations. However, for those who do, we provide RX SHFT settings as well as control over preamp gain. These are the same signal-management strategies used by other companies using this receiver architecture. Typically, dropping preamp gain from 20 dB to 10 dB will do the trick, or you can use the 8-kHz shift setting. In either case, you only need to do this on affected bands. Shifting the I.F. does bypass the roofing filter module, if applicable. However, this only changes the close-in dynamic range of the receiver by 8-10 dB, which still leaves the KX3 in the top 10 of all radios tested by Sherwood, etc. I still hope to provide a smaller shift that allows the use of FL2 (1500 Hz roofing filter) in narrowband operating modes. The K3 uses a different architecture (superhet), which is inherently immune to narrowband AM IP2. But the KX3's primary application is as an ultraportable field radio, and we elected to keep it small and lightweight by using a quadrature-DC architecture. 73, Wayne N6KR On Aug 15, 2013, at 3:52 AM, Paul Barlow paul.bar...@upcmail.ie wrote: After being QRT for a number of years I'm returning to the air with a new call and location. I am seriously considering buying a KX3 (I have a K2 and a K1), but I'm a little concerned by reports of AM breakthrough (or whatever the right word is). I know this is because of the direct conversion architecture of the rig. I also understand that the IK can be shifted to 8KHz, which should solve the problem, but in doing so makes the narrower roofing filters and dual watch inoperable…. __ 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
Re: [Elecraft] KX3 BC Breakthrough
Paul, I have this direct AM detection on my KX3 every day mainly on 20-15-10 m bands/ I would not call it a problem because shifting IF 8 kHz solves it 100%. Although this disables dual RX but one seldom (if ever) needs it on this portable QRP transceiver. Yet the radio is the best available choice for traveling and it has got very good receiver. 73, Igor UA9CDC - Original Message - From: Paul Barlow paul.bar...@upcmail.ie To: elecraft@mailman.qth.net Sent: Thursday, August 15, 2013 4:52 PM Subject: [Elecraft] KX3 BC Breakthrough After being QRT for a number of years I'm returning to the air with a new call and location. I am seriously considering buying a KX3 (I have a K2 and a K1), but I'm a little concerned by reports of AM breakthrough (or whatever the right word is). I know this is because of the direct conversion architecture of the rig. I also understand that the IK can be shifted to 8KHz, which should solve the problem, but in doing so makes the narrower roofing filters and dual watch inoperable. How many owners are having problems with AM BC breakthrough. I guess it's mainly an EU problem. I'm located in Dublin, EI. 73, Paul EI5KI (and M0CDP) __ 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 __ 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
Re: [Elecraft] KX3 BC Breakthrough
If turning the Preamp off fixes the problem, that would be my first choice as long as I can hear the noise level drop when I disconnect the antenna. If removing the antenna doesn't cause the noise level to drop, then the preamp is likely useful for hearing weaker signals. In a QSO I'd still turn the preamp off to see if it affects my ability to hear the other station. Putting too much gain at the antenna input compromises the performance of any receiver 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Igor Sokolov Sent: Thursday, August 15, 2013 1:19 PM To: Paul Barlow; elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 BC Breakthrough Paul, I have this direct AM detection on my KX3 every day mainly on 20-15-10 m bands/ I would not call it a problem because shifting IF 8 kHz solves it 100%. Although this disables dual RX but one seldom (if ever) needs it on this portable QRP transceiver. Yet the radio is the best available choice for traveling and it has got very good receiver. 73, Igor UA9CDC __ 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
Re: [Elecraft] KX3 BC Breakthrough
If the interference is from a single station, you can use a wave trap. This is a series-tuned resonant circuit across the transmission line that shorts out that frequency. Here is a good article about building one to get rid of a MW broadcast station. http://www.w4btx.com/wave.html wunder K6WRU On Aug 15, 2013, at 1:36 PM, Ron D'Eau Claire wrote: If turning the Preamp off fixes the problem, that would be my first choice as long as I can hear the noise level drop when I disconnect the antenna. If removing the antenna doesn't cause the noise level to drop, then the preamp is likely useful for hearing weaker signals. In a QSO I'd still turn the preamp off to see if it affects my ability to hear the other station. Putting too much gain at the antenna input compromises the performance of any receiver 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Igor Sokolov Sent: Thursday, August 15, 2013 1:19 PM To: Paul Barlow; elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 BC Breakthrough Paul, I have this direct AM detection on my KX3 every day mainly on 20-15-10 m bands/ I would not call it a problem because shifting IF 8 kHz solves it 100%. Although this disables dual RX but one seldom (if ever) needs it on this portable QRP transceiver. Yet the radio is the best available choice for traveling and it has got very good receiver. 73, Igor UA9CDC __ 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
[Elecraft] Astatic D104 amplified mic
Is anyone using an Astatic D104 amplified mic with a K3? 73, Steve K6SAB K3 / 7497 __ 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
Re: [Elecraft] Astatic D104 amplified mic
Hello Steve. (K6SAB) and all those great, helpful Elecrafter's, both builders and users alike. I certainly operate my Elecraft K3/100 with my rather elderly, but great condition Astatic D104 Silver Eagle. Although a little long in the tooth (both the mic me) I get: 'Perfect audio reports' without even asking. What a perfect combination!! '73 Brian 2E0BWQ. Sent from my iPad On 15 Aug 2013, at 22:03, Steven Bertsch sabert...@gmail.com wrote: Is anyone using an Astatic D104 amplified mic with a K3? 73, Steve K6SAB K3 / 7497 __ 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 __ 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
[Elecraft] P3 Double-humped Noise Monster
I am really happy I added the P3 to my K3. It is my window on the band. I can't imagine operating without it. I have had the P3 for six months now, but just recently it has started to display two big ugly humps of noise that drift across the display. This happens on all bands, but it might not appear for 20 minutes after switch-on. The double-humped noise monster is 30-40Khz wide and about -100 dBm level. When the antenna is disconnected the signals disappear but not the double-humped monster. There is no sound in the K3, so it looks like the noise monster is being generated within the P3. The frequency of the noise monster is incredibly sensitive to almost anything I do in the shack. It even shifts frequency if I put a few sheets of paper on top of the P3. If I put a book on top of the P3, the noise monster shifts completely off the screen (even with a 200KHz width). But it will drift back again later, whereupon I can remove the book and shift it again. This is a bit inconve nient, so can anybody tell me what is going on here? 73 Roger, VK4YB __ 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
Re: [Elecraft] KX3 BC Breakthrough
Ron, Switching preamp off does not help here. Shifting IF is the ultimate cure. Besides I need preamp on on 10-15 meters most of the time to pull out weak signals. Sometimes I need it even on 20 m. 73, Igor, UA9CDC - Original Message - From: Ron D'Eau Claire r...@cobi.biz To: elecraft@mailman.qth.net Sent: Friday, August 16, 2013 2:36 AM Subject: Re: [Elecraft] KX3 BC Breakthrough If turning the Preamp off fixes the problem, that would be my first choice as long as I can hear the noise level drop when I disconnect the antenna. If removing the antenna doesn't cause the noise level to drop, then the preamp is likely useful for hearing weaker signals. In a QSO I'd still turn the preamp off to see if it affects my ability to hear the other station. Putting too much gain at the antenna input compromises the performance of any receiver 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Igor Sokolov Sent: Thursday, August 15, 2013 1:19 PM To: Paul Barlow; elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 BC Breakthrough Paul, I have this direct AM detection on my KX3 every day mainly on 20-15-10 m bands/ I would not call it a problem because shifting IF 8 kHz solves it 100%. Although this disables dual RX but one seldom (if ever) needs it on this portable QRP transceiver. Yet the radio is the best available choice for traveling and it has got very good receiver. 73, Igor UA9CDC __ 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 __ 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
[Elecraft] K2 adjusting L34
I know there has been lots of discussion but I just made a change which solved everything. I noticed that the peak was at the top most rotation of L34, so I changed C182 from 180pf to 120 pf (npo). Now, using an external sig gen, not the 7k birdie, there is a pronounced peak about halfway down L34. Just my 2 cents. N2PD -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-adjusting-L34-tp7577751.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
Re: [Elecraft] P3 Double-humped Noise Monster
Hi Roger, summer here, winter there I guess ... When I first got my P3, I had a similar observation. Periodically, but with no specific periodicity, the baseline would drift upward. Putting my hand on the top of the case sent it down. At some point, I had the scan at 200 KHz and realized it was some sort of noise that drifted through and with smaller scan ranges, it looked like the drifting baseline. My neighbor has a plasma TV, and at small scan ranges, it looks like noise. At 200 KHz, I can clearly see the spectrum and see it change as the picture changes. That's coming in through the K3 of course. I finally took my P3 apart, carefully sanded the contact points [some paint overspray there], and along the edges that were painted, put a drop of DeOxit on each contact pad, and reassembled it, making sure ALL the screws were truly tight. Haven't had the problem since. I think the P3 is a very high gain receiver, and is easily susceptible to extraneous signals.Making sure the case was electrically intact made a huge difference. I had some signals I couldn't tune to [they moved as I tuned], Elecraft sent me a new cable with the condition that I cut the old one up into small pieces in the trash. That solved that one. 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 8/15/2013 4:55 PM, Roger Crofts wrote: I am really happy I added the P3 to my K3. It is my window on the band. I can't imagine operating without it. I have had the P3 for six months now, but just recently it has started to display two big ugly humps of noise that drift across the display. This happens on all bands, but it might not appear for 20 minutes after switch-on. The double-humped noise monster is 30-40Khz wide and about -100 dBm level. When the antenna is disconnected the signals disappear but not the double-humped monster. There is no sound in the K3, so it looks like the noise monster is being generated within the P3. The frequency of the noise monster is incredibly sensitive to almost anything I do in the shack. It even shifts frequency if I put a few sheets of paper on top of the P3. If I put a book on top of the P3, the noise monster shifts completely off the screen (even with a 200KHz width). But it will drift back again later, whereupon I can remove the book and shift it again. This is a bit inconve nient, so can anybody tell me what is going on 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
Re: [Elecraft] Astatic D104 amplified mic
Brian: Is that with the crystal element or did you replace it? Brian KB1VBF Sent from my iPad On Aug 15, 2013, at 5:20 PM, Brian North br...@chirpytom.plus.com wrote: Hello Steve. (K6SAB) and all those great, helpful Elecrafter's, both builders and users alike. I certainly operate my Elecraft K3/100 with my rather elderly, but great condition Astatic D104 Silver Eagle. Although a little long in the tooth (both the mic me) I get: 'Perfect audio reports' without even asking. What a perfect combination!! '73 Brian 2E0BWQ. Sent from my iPad On 15 Aug 2013, at 22:03, Steven Bertsch sabert...@gmail.com wrote: Is anyone using an Astatic D104 amplified mic with a K3? 73, Steve K6SAB K3 / 7497 __ 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 __ 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 __ 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
Re: [Elecraft] Astatic D104 amplified mic
A lot of the later D-104's were manufactured with ceramic elements instead. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Denley Sent: Thursday, August 15, 2013 7:23 PM To: Brian North Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Astatic D104 amplified mic Brian: Is that with the crystal element or did you replace it? Brian KB1VBF Sent from my iPad On Aug 15, 2013, at 5:20 PM, Brian North br...@chirpytom.plus.com wrote: Hello Steve. (K6SAB) and all those great, helpful Elecrafter's, both builders and users alike. I certainly operate my Elecraft K3/100 with my rather elderly, but great condition Astatic D104 Silver Eagle. Although a little long in the tooth (both the mic me) I get: 'Perfect audio reports' without even asking. What a perfect combination!! '73 Brian 2E0BWQ. Sent from my iPad On 15 Aug 2013, at 22:03, Steven Bertsch sabert...@gmail.com wrote: Is anyone using an Astatic D104 amplified mic with a K3? 73, Steve K6SAB K3 / 7497 __ 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 __ 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 __ 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 __ 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
Re: [Elecraft] P3 Double-humped Noise Monster
Hi Roger, I had something similar with my P3. After cleaning the internal metal to metal contact points on the case, my problem disappeared. Good bonding (and tight screws) on all enclosure panels is essential. I also had another problem with wandering spikes on the display. It turns out my BNC lead was faulty. Andy VK4KY -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Double-humped-Noise-Monster-tp7577749p7577754.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
Re: [Elecraft] KAT500 production firmware version updated to 1.41
My KAT utility and the web site still show firmware version 1.32 as production. Has there been a problem with 1.41 that I've missed? Thanks. Gary W2CS __ 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
Re: [Elecraft] KAT500 production firmware version updated to 1.41
Between us, the problem is that we've boxed a number of kits with 1.32 installed and our practice is not to ship kits with back level firmware. That's all that's holding it up. 1.41 is fine. 73 de Dick,K6KR On Aug 15, 2013, at 9:13 PM, Gary Ferdinand alapa...@taconic.net wrote: My KAT utility and the web site still show firmware version 1.32 as production. Has there been a problem with 1.41 that I've missed? Thanks. Gary W2CS __ 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 __ 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
[Elecraft] K2
Looking for a nice working K2. 10 watts preferred, but may accept the 100 watt. Pay via PayPal only. 73! Tomy Ivan KF7GC __ 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
Re: [Elecraft] K3/KX3 after market PTO knobs
I cannot speak for the wear and tear, as I've only had mine a short time - around 6 months. I can, however, clearly state that the feel is fantastic. I have never had a radio with such a solid feeling VFO. From time to time, they appear on the used market which makes them less pricey. Alan K2ACK Sent from my mobile device. On Aug 15, 2013, at 19:50, Linda and Bob dlrwi...@verizon.net wrote: Does anyone know if the after market metal PTO main and sub tuning knobs for the K3 or KX3 (main PTO) will damage or cause pre-mature wear and tear on the optical encoders? Any feed back on how the weighted metal PTO will improve the feel while tuning would be welcome. They are kind of expensive. Are they really worth the extra expense. Please respond directly to my home e-mail address if possible, thanks. Bob Wilderman K3SRO dlrwi...@verizon.net K3 #4669 K1-4 #2701 __ 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 __ 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
