Re: [Elecraft] Need K3 firmware testers (extended AF bass, live memory recall, flat data-mode EQ, etc.)
Was the root cause for the reported audio blasts found? Bryan, Zl1NI Hi all, We're getting very close to a long-awaited K3 beta firmware release. Since the changes are extensive, we'd like to send the code to a new group of pre-testers in addition to our usual field-test group. Please read the release notes below. If you're interested, and can start testing right away, send me a direct email (n6kr at elecraft dot com) and I'll send you the latest firmware. I'll also include a link to the associated new release of K3 Utility, which is required to complete the RF GAIN Calibration procedure. 73, Wayne N6KR .. * DSP INTERNAL ERROR MONITORING: The DSPs now do additional self-checking so they can automatically detect and prevent any type of rare AF output anomaly. If you hear anything unexpected, please report the associated information to Elecraft. While in the TECH MD menu entry, tap 1 (main) or 2 (sub) to display the most recent data, shown in hexadecimal. If it is , no error has been detected. After writing down the values, tap CLR to reset them, allowing additional errors to be trapped if necessary. .. __ 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] SDR-IQ
It is a known issue with Spectravue. The only down side to the software at the moment. Mike Maarten-2 wrote: I am setting up a K3 with a SDR-IQ and spectravue. When selecting K3 in extRadiosetup menu I cannot keep the IF inverted. Is this a software problem with spectravue? Anyone on this list working with SDR-IQ with Spectravue 3.01? Thanks Maarten __ 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 -- View this message in context: http://n2.nabble.com/SDR-IQ-tp3733686p3734699.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
[Elecraft] Astron 25 amp supply
Can I use an Astron 25 amp supply a K3-100? Thanks Thom __ 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] Astron 25 amp supply
is that a question about 25 amps being enough - if so, then yes, since I use a 22amp supply over here with no problem 73 de M0XDF, K3 #174 -- The nice thing about standards is that there are so many of them to choose from. -Andrew Tannenbaum, computer science professor (1944- ) On 29 Sep 2009, at 10:21, Thom LaCosta wrote: Can I use an Astron 25 amp supply a K3-100? Thanks Thom __ 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] Fwd: Mail delivery failed: returning message to sender - for Thom LaCosta (k3...@zerobeat.net)
Sorry about bandwidth - Thom, my direct mail to you was blocked 73 de M0XDF, K3 #174 -- Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen. --John Steinbeck, novelist, Nobel laureate (1902-1968) Begin forwarded message: From: Mail Delivery System mailer-dae...@kundenserver.de Date: 29 September 2009 10:30:00 BST To: m0...@alphadene.co.uk Subject: Mail delivery failed: returning message to sender This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. The following addresses failed: k3...@zerobeat.net SMTP error from remote server after RCPT command: host mail.zerobeat.net[12.180.200.76]: 550-Email blocked by SPAMCANNIBAL - to unblock see 550 http://tlchost.com/blocked.html --- The header of the original message is following. --- Received: from [192.168.1.2] (cpc2-rdng23-2-0- cust501.15-3.cable.virginmedia.com [86.28.197.246]) by mrelayeu.kundenserver.de (node=mrbap0) with ESMTP (Nemesis) id 0M4Tee-1M9Fw92kDE-00zIOT; Tue, 29 Sep 2009 11:29:58 +0200 Message-Id: 21e87555-d20d-4ef6-81c2-b3a85d1cc...@alphadene.co.uk From: David Ferrington, M0XDF m0...@alphadene.co.uk To: Thom LaCosta k3...@zerobeat.net In-Reply-To: 20090929092144.a184b88...@mailman.qth.net Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v936) Subject: Re: [Elecraft] Astron 25 amp supply Date: Tue, 29 Sep 2009 10:29:57 +0100 References: 20090929092144.a184b88...@mailman.qth.net X-Mailer: Apple Mail (2.936) X-Provags-ID: V01U2FsdGVkX18L0xmiaw5cjJMw/fJX0qJueF2WnIpe3ytURtU j1wcKNO+kOd/nPmieEYWAHE18HYg4GBXKouMbes3QvRscMDb2Y ExngAu7cIeR0HfmvQQHsAWC+F1m3DWk __ 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] Astron 25 amp supply
Thom, A PSU rated for 25 amps should be adequate in terms of current for a 100 watt transmitter. Something else that must be considered, especially if SSB is used, is that the PSU's output voltage should remain constant at all transmitter power levels. Also the DC supply voltage measured at the rig's DC input connector should remain reasonably constant under the same conditions of current draw. With a well regulated PSU supplying +13.8 VDC and low resistance connecting leads and connectors, the voltage droop as seen at the rig end can be held to 0.5 volts or less. 73, Geoff GM4ESD - Original Message - From: Thom LaCosta k3...@zerobeat.net To: elecraft@mailman.qth.net Sent: Tuesday, September 29, 2009 10:21 AM Subject: [Elecraft] Astron 25 amp supply Can I use an Astron 25 amp supply a K3-100? Thanks Thom __ 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] Fwd: Re: Astron 25 amp supply
At 06:41 AM 09/29/09, you wrote: With a well regulated PSU supplying +13.8 VDC and low resistance connecting leads and connectors, the voltage droop as seen at the rig end can be held to 0.5 volts or less. Thankshopefully someone who has/had an Astron 25 amp supply can tell me if it meets those parameters. Some of the information I've found is confusing(that's very easy for me).Astron doesn't list it...some posts say 2o amps continuous and apparently it's a switching power supply. Thanks thom k3hrn __ 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] Astron 25 amp supply
Hi Thom: You didn't state the model number. I use the RS-35M which is a 25 watt continuous duty supply. I use an amp on most bands but operate full 100 watts on 30 and 6 meters and never had a problem with the power supply. It's left on 24/7 and has been in operation for close to a year. 73, Mike K2MK __ 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] speakers
I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Thanks Dan N0DT K3 #3388 __ 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] Astron 25 amp supply
I've been using an Astron SS-30M switcher with my K3 for a while now and previously used it with an Icom 746 for 7 years with no problem. The SS-30M is rated by Astron at 25 Amps continuous and 30A ICS. The ICS rating should not be confused with the widely accepted ICAS (Intermittent Commercial and Amateur Service) rating that has been around for years. ICS is an Astron invention that purports to represent a typical duty cycle for ham use and allows them to claim higher current capability than the supply would have in truly heavy duty service. I would not recommend using any Astron supply rated at less than 25A ICS for a 100W HF radio. That being said, the SS-30 has performed flawlessly for me for a long time, and there are thousands of them out there that seem to be working equally well. 73... Randy, W8FN __ 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] For Sale KXPD1 paddle with K2 Mounting Bracket Pelican Case
Pelican Case is SOLD pkhjr wrote: For sale KXPD1 paddle with the K2 mounting bracket, if bought from Elecraft the two items run over $140. Sell for $80 plus shipping. Also have Pelican Case setup for K1, $25 plus shipping from 75163. Feel free to call if you have any questions 903-778-2592 or email k...@yahoo.com 73 Paul Forgot to mention the Pelican case is orange and model 1200 Paul -- View this message in context: http://n2.nabble.com/For-Sale-KXPD1-paddle-with-K2-Mounting-Bracket-Pelican-Case-tp3729625p3736585.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] [K3] K3 KY command and RTTY
I could send only one command for the text to send, but then there is no way to interrupt the the transmission. It seems the ˆD don't clear the buffer and stops sending immediately. In this way the KY command is useless for me in RTTY. My idea was to add direct FSK output in my Dx-ped logger. 73 de Tom, DL2RUM Julian, G4ILO wrote: Tom, DL2RUM wrote: I'm not quite sure if the following a bug under 3.30: Mode is set to Data FSK D When sending text to the TRX using the KY command, the text will be sent out and after that the signal is idling (didles) a while before the K3 switchs to RX. That's okay. But when sending the next KY command during this idling time, the transmission changes to an unmodulated carrier, without didles. It takes few seconds before the next text will be send out. Interesting. I can reproduce this using KComm by selecting the K3 DSP modems option, clicking Start sending and typing slowly. PSK D appears to have the same problem. The transmission doesn't change to a single tone, but there is a delay of a couple of seconds before the next character is sent. This is with the last beta version sent to registered beta testers. -- View this message in context: http://n2.nabble.com/K3-KY-command-and-RTTY-tp3730340p3736696.html Sent from the [K3] 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] speakers
Dan, Computer speakers are intended to play music and sound effects, not communications audio. Get a communications speaker. Mono, no amplifier, no sub-woofer. Even better, use headphones. 73, Bob W5OV I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Thanks Dan N0DT K3 #3388 __ 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] speakers
Dan, I see no need for a sub-woofer for use with the K3. If you are running an amplifier, you may want to look at shielded speakers (usually non-amplified) because those with amplifiers are usually prone to RF problems. The K3 has adequate audio to drive non-amplified speakers. If you use AFX or you have the subRX you will want 2 speakers, but there is no need for any more than that, the K3 does not do Dolby Surround sound or anything of that nature. If you want great low-frequency bass response in shielded speakers you may have to look to what is available in the pro-audio field, but for only communications quality, the Motorola speakers available on Ebay or at hamfests will do the job for you. 73, Don W3FPR Dan Copeland wrote: I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Thanks Dan N0DT K3 #3388 __ 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] Astron 25 amp supply
Astron is very specific about what ICS (Intermittent Communications Service) means: 50% duty cycle, 5 min on and 5 min off. The limit is almost all about keeping the regulators working within their design temperature. Astron's typical ICS rating is about 25% higher than the continuous duty rating. For example a 20 amp Astron is rated at 20 amps ICS and 16 amps continuous. That continuous is really continuous. That is, you can demand 16 amps from it 24/7 for year after year and expect reliable operation. I've worked with many hundreds of them in commercial service and can count the number of failures on the fingers of one hand. Note that a very large number of Astron supplies are used with equipment, such as FM communications radios and repeaters, that are keyed for a while demanding a full 20 A current and then switch to receive mode for a while. Our HF Ham rigs typically have a much smaller duty cycle than specified by the ICS rating. While someone might yack on SSB or carry on sending CW for longer than five minutes, our rigs are not pulling full current except on the occasional voice peaks or when the CW key is actually closed. The average current is much, much lower than the peak. Although Elecraft recommends a 30 amp supply, I have an Astron 20A (linear) supply that has run my K3 at full power for over three years now. Under most conditions the peak current demand is under 20 Amps at 100 watts output key down CW, but even when it peaks at over 20 amps the supply handles it easily. Ron AC7AC __ 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 Speakers
For over 6 years I have used book case speakers mounted on the wall, pointed at me. They go through an amplifier and to the K3. No RFI and wonderful quality that is non tiring for many hours of phone use. I also have the West Mountain Radio COMSpkr's that are cheap and very nice but no comparison to the above. Everyone who comes over comments on the quality of the speaker system. For CW, I use head phones. Phil Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 CRA 1701 W9DVM __ 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] K3 hum problem - not the usual? [Try CONFIG:AFSK TX = FIL ON]
In the creeping features department, a similar high-pass filter (60Hz, 120Hz, 300Hz?) might be nice for PSK31 and other digimode hams who use panoramic display software since they don't transmit at a fixed offset. Leigh/WA5ZNU wayne burdick wrote: The K3 has a CONFIG menu entry called AFSK TX. If you set it to FIL ON, a 400-Hz transmit-mode audio filter is inserted, centered around the mark/space tones. This is only available when the rig is set for AFSK A mode. It should be effective against low-frequency hum coming in through the mic or LINE IN connectors. 73, Wayne N6KR On Sep 28, 2009, at 2:45 PM, Leigh L. Klotz, Jr. WA5ZNU wrote: Jim K9YC wrote: Magnetic field coupling from the power supply to the K3's input circuitry, probably due to the use of unshielded audio transformers in the K3. This is a well known problem. One good band-aid is to go to the TXEQ1 settings and fully cut the three lowest octave bands. ... One of my neighbors had so much magnetically coupled hum into the Line In transformer that it regenerated to full output power when he tried to run RTTY in AFSK mode. Note that the upcoming firmware upgrade will reportedly eliminate TXEQ in AFSK (and other audio-based digital modes), and it apparently may be some time before another update provides true per-mode TX/RX EQ. So people with hum will need another solution, except for the voice modes. I tried wrapping the component side of the transformers in a sheet of Mu-metal (actually, a competitor, not Mu-brand) and noted no difference. It was probably a futile effort anyway as it didn't wholly enclose the transformer; probably I need to complain to Maxwell about this. Leigh/WA5ZNU __ 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 -- View this message in context: http://n2.nabble.com/K3-hum-problem-not-the-usual-tp3730769p3737184.html Sent from the [K3] 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] K3 hum problem - not the usual? [Try CONFIG:AFSK TX = FIL ON]
Wayne, Thanks for that suggestion - it worked!! One starts to wonder if there is any thing that this radio can't do! 73 -- Brian -- K1LI On Mon, Sep 28, 2009 at 5:58 PM, Wayne Burdick n...@elecraft.com wrote: The K3 has a CONFIG menu entry called AFSK TX. If you set it to FIL ON, a 400-Hz transmit-mode audio filter is inserted, centered around the mark/space tones. This is only available when the rig is set for AFSK A mode. It should be effective against low-frequency hum coming in through the mic or LINE IN connectors. 73, Wayne N6KR __ 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] K3 KY command and RTTY
Tom, DL2RUM wrote: I could send only one command for the text to send, but then there is no way to interrupt the transmission. It seems the ˆD don't clear the buffer and stops sending immediately. In this way the KY command is useless for me in RTTY. My idea was to add direct FSK output in my Dx-ped logger. 73 de Tom, DL2RUM You are right about this, too. I am sure it did used to work when I originally wrote the code for KComm to work with it. But I haven't used it much since I always have soundcard software anyway, so I don't know when it stopped working. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-KY-command-and-RTTY-tp3730340p3737345.html Sent from the [K3] 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] [K3] K3 KY command and RTTY
I'll look into this on the K3 end. 73, Wayne N6KR On Sep 29, 2009, at 9:30 AM, Julian, G4ILO wrote: Tom, DL2RUM wrote: I could send only one command for the text to send, but then there is no way to interrupt the transmission. It seems the ˆD don't clear the buffer and stops sending immediately. In this way the KY command is useless for me in RTTY. My idea was to add direct FSK output in my Dx-ped logger. 73 de Tom, DL2RUM You are right about this, too. I am sure it did used to work when I originally wrote the code for KComm to work with it. But I haven't used it much since I always have soundcard software anyway, so I don't know when it stopped working. __ 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 Speakers
Phil, I agree with you - whatever speakers are used they should have reasonable fidelity. Yes, communications quality is all that is needed IMHO for the audio, but also IMHO, the speakers are *not* the place to achieve that - good full range speakers should faithfully reproduce whatever comes out of the K3 (or any other radio). I find many of the communications speakers sound 'tinny and rattly' to my ears. 73, Don W3FPR Phil LaMarche wrote: For over 6 years I have used book case speakers mounted on the wall, pointed at me. They go through an amplifier and to the K3. No RFI and wonderful quality that is non tiring for many hours of phone use. I also have the West Mountain Radio COMSpkr's that are cheap and very nice but no comparison to the above. Everyone who comes over comments on the quality of the speaker system. For CW, I use head phones. Phil Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 CRA 1701 W9DVM __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.114/2402 - Release Date: 09/29/09 05:54:00 __ 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] speakers
Hi Dan, I recommend a pair of Best Buy Insignia, 4-inch, 3-way surround speakers (same as the KLH Model 970A or other similar models). These are unpowered bookcase speakers, but provide plenty of volume when used with the K3. They're very inexpensive and sound great. Size: about 4W x 8H x 4D. Having two speakers allows you to get L/R separation of the main and subreceivers, as well as take advantage of the K3's AFX simulated stereo mode. 73, Wayne N6KR On Sep 29, 2009, at 7:00 AM, Dan Copeland wrote: I am looking at speakers for my K3 __ 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] speakers
Hi all, Just a comment on speakers. I use cans or a small computer speaker, non-amplified, for most SSB and CW work. However, I do a reasonable amount of SW and BC listening with the K3 with the 6KHz filter and find an old HiFi combo speaker with a 8 woofer to be most pleasant to listen to. Mel, K6KBE --- On Tue, 9/29/09, Don Wilhelm w3...@embarqmail.com wrote: From: Don Wilhelm w3...@embarqmail.com Subject: Re: [Elecraft] speakers To: Dan Copeland n...@mchsi.com Cc: elecraft@mailman.qth.net Date: Tuesday, September 29, 2009, 8:47 AM Dan, I see no need for a sub-woofer for use with the K3. If you are running an amplifier, you may want to look at shielded speakers (usually non-amplified) because those with amplifiers are usually prone to RF problems. The K3 has adequate audio to drive non-amplified speakers. If you use AFX or you have the subRX you will want 2 speakers, but there is no need for any more than that, the K3 does not do Dolby Surround sound or anything of that nature. If you want great low-frequency bass response in shielded speakers you may have to look to what is available in the pro-audio field, but for only communications quality, the Motorola speakers available on Ebay or at hamfests will do the job for you. 73, Don W3FPR Dan Copeland wrote: I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Thanks Dan N0DT K3 #3388 __ 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: proposed SSB coarse tuning rate change
We've had many requests to provide an 0.5-kHz VFO tuning step size in SSB modes. I'd like to substitute this for the current 2.5 kHz selection. The new set of steps sizes for SSB would then be: 0.1, 0.5, 1.0, 5.0 Most operators probably don't find 2.5 kHz steps to be particularly useful. 0.5 kHz, on the other hand, seems to be a useful lowest-common- denominator for tuning the SSB band segments. Each mode can have up to 4 step sizes with the K3's present per-mode data structure. I could add more step sizes, but that would require a much more extensive change. Please let me know if you have a compelling requirement for 2.5 kHz steps. 73, Wayne N6KR __ 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 SSB coarse tuning rate proposal -- revised
Very quick response from some K3 owners suggests that 2.5 kHz steps in SSB mode *are* useful, after all -- for quickly scanning the band (including when using the RIT/XIT control to move the VFO in coarse steps). It may be that 5.0 kHz steps in could be sacrificed, instead, in order to add 0.5 kHz. 5.0 kHz steps completely jump over some SSB stations so have limited utility. Note that this would have no impact on AM or FM tuning rates. Both of these modes would continue to provide 5.0 kHz steps as a coarse-tuning option. 73, Wayne N6KR __ 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] speakers
I use my PC speaker system and control mixer with good results. These are the creative 3 tweeters per channel and a subwoofer adjusted for natural sound. The K3 sounds excellent even into this amplified system. 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods ATS-3B -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Hi Dan, I recommend a pair of Best Buy Insignia, 4-inch, 3-way surround speakers (same as the KLH Model 970A or other similar models). These are unpowered bookcase speakers, but provide plenty of volume when used with the K3. They're very inexpensive and sound great. Size: about 4W x 8H x 4D. Having two speakers allows you to get L/R separation of the main and subreceivers, as well as take advantage of the K3's AFX simulated stereo mode. 73, Wayne N6KR __ 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] speakers
Wayne: or anyone. Ever try the Motorola Mobile speakers. I have 2 in the metal case and some in the plastic case. I like then but I've used them for years on all my radios. Great sound de K2GN/Larry K3 - S/N 3278 - Original Message - From: Wayne Burdick n...@elecraft.com To: Dan Copeland n...@mchsi.com Cc: elecraft@mailman.qth.net Sent: Tuesday, September 29, 2009 12:58 PM Subject: Re: [Elecraft] speakers Hi Dan, I recommend a pair of Best Buy Insignia, 4-inch, 3-way surround speakers (same as the KLH Model 970A or other similar models). These are unpowered bookcase speakers, but provide plenty of volume when used with the K3. They're very inexpensive and sound great. Size: about 4W x 8H x 4D. Having two speakers allows you to get L/R separation of the main and subreceivers, as well as take advantage of the K3's AFX simulated stereo mode. 73, Wayne N6KR On Sep 29, 2009, at 7:00 AM, Dan Copeland wrote: I am looking at speakers for my K3 __ 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] speakers
Hi Dan: I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Some (possibly many) PC speakers include internal amplifiers which can be susceptible to RFI which results in thumps 'n 'bumps in the night. I have settled on a pair of (UNamplified) 8-Ohm Motorola mobile speakers I bought off EBay for $5 each, plus shipping. They are a very dark brown case, which is almost dark enough to be taken for black, and match the K3 nicely. Trying top plug two (2) separate (UNamplified) speakers into the single 1/8 stereo jack in the back of the K3 was getting to be a PITA... I had two wires going different directions (L and R) RIGHT OUT OF THE BACK OF THE K3, which made things a bit 'busier' than I wanted. So I fabricated a 'splitter' for the speakers... a single 2-wire/shielded cable (about 8 long) to a 1/8 stereo plug goes into the back of the K3. The cable terminates in a small PC board containing two (2) 1/8 STEREO jacks of which only the TIP and SLEEVE are used (RING = N/C). This allows me to plug in speakers which are terminated in mono OR stereo jacks and to not have to worry about possibly plugging a mono plug into the stereo jack on the K3. Yeah, I know, there have been mods for the K3 to prevent damage if I mono plug was plugged into the stereo jack, but this helps to ensure that I never do it regardless of the preventative mods! It also helps to get the two wires (to the two speakers) out and a bit away from the immediate read of the K3, making wire 'congestion' a bit easier to handle. Thought I've not done so (yet), if there's any interest in the 2-speaker 'splitter', I'll put the info out on my web site for general access. 73, Tom Hammond N0SS __ 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] speakers
All this talk about speakers prompted me to resurrect a pair of Apple amplified speakers that have very good frequency response. All was well until I tried 10 and 6 meters - then got the thumps and bumps in the form of a loud hum. Tried FOE (ferrite on everything) first with no success. Opened up the speaker and found not one bypass capacitor. I put one (.01ufd) across the power plug, and after zapping the amplifier module, one across each of the stereo amp's power inputs. Perfectly quiet now. Monty K2DLJ Some (possibly many) PC speakers include internal amplifiers which can be susceptible to RFI which results in thumps 'n 'bumps in the night. __ 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] Astron 25 amp supply
My two cents,this might be a good choice for you,for about 4 years I have been using an Alinco DM-340MV 35A analog power supply to feed all the radios I have owned before,IC-756ProIII,FT-950,FT-2000 and now the K3,its very stable,even taking out 25A continuos the drop of voltage from 13.8 at the output is just 0.2V and the ripple is no more than 100 mV on the scope,it has two meters,one for voltage and one for amperes,good looking,black color to match the radio,I payed around $175,I think its a good choice for the K3 and its no switching,so it will not generate any birdies on any band,good luck with your search,73 AD4C For a refined ham it is compulsory to own a k3 --- On Tue, 9/29/09, Randy Farmer w...@tx.rr.com wrote: From: Randy Farmer w...@tx.rr.com Subject: Re: [Elecraft] Astron 25 amp supply To: elecraft@mailman.qth.net Date: Tuesday, September 29, 2009, 2:09 PM I've been using an Astron SS-30M switcher with my K3 for a while now and previously used it with an Icom 746 for 7 years with no problem. The SS-30M is rated by Astron at 25 Amps continuous and 30A ICS. The ICS rating should not be confused with the widely accepted ICAS (Intermittent Commercial and Amateur Service) rating that has been around for years. ICS is an Astron invention that purports to represent a typical duty cycle for ham use and allows them to claim higher current capability than the supply would have in truly heavy duty service. I would not recommend using any Astron supply rated at less than 25A ICS for a 100W HF radio. That being said, the SS-30 has performed flawlessly for me for a long time, and there are thousands of them out there that seem to be working equally well. 73... Randy, W8FN __ 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] K3: proposed SSB coarse tuning rate change
This is the one aspect of the K3 I find frustrating. To QSY a few hundered kHz takes a lot of turning. I really like the way some radios speed up the tuning rate as you turn the dial faster. I use the RIT tuning very often to QSY quickly and for larger steps I end up having to use DFE which is tedious and often results in mistakes. I think this is almost the only thing Icom do better. To answer your question Eric, I don't find the higher corse tuning steps useful so I won't miss 2.5kHz steps. wayne burdick wrote: We've had many requests to provide an 0.5-kHz VFO tuning step size in SSB modes. I'd like to substitute this for the current 2.5 kHz selection. The new set of steps sizes for SSB would then be: 0.1, 0.5, 1.0, 5.0 Most operators probably don't find 2.5 kHz steps to be particularly useful. 0.5 kHz, on the other hand, seems to be a useful lowest-common- denominator for tuning the SSB band segments. Each mode can have up to 4 step sizes with the K3's present per-mode data structure. I could add more step sizes, but that would require a much more extensive change. Please let me know if you have a compelling requirement for 2.5 kHz steps. 73, Wayne N6KR __ 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 -- View this message in context: http://n2.nabble.com/K3-proposed-SSB-coarse-tuning-rate-change-tp3737732p3738936.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] K3: proposed SSB coarse tuning rate change
Mike are you using the RIT/XIT control as a means of rapid tuning? On 80m SSB I can cross the band in less than two full turns of that knob, and on CW it does 300 KHz in 6 turns or so, how quickly do you need to tune? 73 Dave, G4AON K3/100 #80 --- This is the one aspect of the K3 I find frustrating. To QSY a few hundered kHz takes a lot of turning. __ 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: proposed SSB coarse tuning rate change
Dave G4AON wrote: Mike are you using the RIT/XIT control as a means of rapid tuning? On 80m SSB I can cross the band in less than two full turns of that knob, and on CW it does 300 KHz in 6 turns or so, how quickly do you need to tune? I won't miss 2.5kHz, though I don't envisage using 0.5kHz either. I find 1kHz steps to be the most useful, thanks to the fact that so many people nowadays use transceivers with a high degree of frequency accuracy and tend to pick a frequency with all zeros in the last 3 digits. I don't think that means we've all turned into CB good buddies either. ;) - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-proposed-SSB-coarse-tuning-rate-change-tp3737732p3739093.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] K3: proposed SSB coarse tuning rate change
Julian G5ILO wrote: ... so many people nowadays use transceivers with a high degree of frequency accuracy and tend to pick a frequency with all zeros in the last 3 digits. I don't think that means we've all turned into CB good buddies either. ;) - No, but it is a bit of a surprise when I call CQ, a station answers me, then he complains that I'm 'off frequency' because I'm not transmitting on an even kilohertz so he can't tune me in correctly using 1 kHz steps... Okay, it's only happened once (so far) but I almost never work phone either... Ron AC7AC __ 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: FM coarse tuning rates
While we're on the subject of step sizes I suppose it is worth thinking about the requirements of those who will be using the K3 on FM. Currently it appears there are only two choices, 5kHz and 10kHz. On 2m over here 12.5kHz and 25kHz might also be handy. What do others think? I personally won't find it a big deal if those step sizes aren't provided because my preference is to use the memories to tune FM channels on 2m, especially as they are now instantly usable. But just for example the FT-817 provides all these options for FM step size: 5, 6.25, 10, 12.5, 15, 20, 25 and 50kHz. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-proposed-SSB-coarse-tuning-rate-change-tp3737732p3739188.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
[Elecraft] K3: Speakers
Hi All. I use a pair or Optimus/Minimus/Realistic/RCA 7 or 77 bookshelf speakers. There were several names over the years for the same speakers. A mainstay in the Radio Shack catalog for many years they are now long since discontinued but excellent examples of them are regularly appear on e-Bay for low cost. Their fidelity and power are remarkable and make them a perfect match to the K3's audio characteristics especially in AFX mode. check out: http://www.angelfire.com/vt/audio/minimus.html or http://www.parts-express.com/projectshowcase/kuzimus77/kuzimus77.html I have both sizes and the smaller ones are actually better in many regards than the bigger ones. My $.02 YMMV 73 de N1LQ-Dave __ 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: Speakers
Dave, Those are what I have used for over 7 years from RS. Mine are RCA. Love them. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 CRA 1701 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David and Dianne on Comcast Sent: Tuesday, September 29, 2009 6:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: Speakers Hi All. I use a pair or Optimus/Minimus/Realistic/RCA 7 or 77 bookshelf speakers. There were several names over the years for the same speakers. A mainstay in the Radio Shack catalog for many years they are now long since discontinued but excellent examples of them are regularly appear on e-Bay for low cost. Their fidelity and power are remarkable and make them a perfect match to the K3's audio characteristics especially in AFX mode. check out: http://www.angelfire.com/vt/audio/minimus.html or http://www.parts-express.com/projectshowcase/kuzimus77/kuzimus77.html I have both sizes and the smaller ones are actually better in many regards than the bigger ones. My $.02 YMMV 73 de N1LQ-Dave __ 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] astron
I use a RS35a that loafs with the K3. .. Use RS 20m with XYLs Icom 746 . Used an Astron 25 switcher with Icom 718 .. Astrons are very dependable PS __ 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: FM coarse tuning rates
I may be daft but I still find the setting of the tuning step on the K3 very complex and bewildering. Why can't I choose between the 4 coarse settings by simply holding the COARSE button 4 times and the fine settings by tapping it 4 times? To have to go into CONFIG to do this seems unnecessarily complicated. Is it really that important to somebody to have a one click choice between two values? AB2TC - Knut Julian, G4ILO wrote: While we're on the subject of step sizes I suppose it is worth thinking about the requirements of those who will be using the K3 on FM. Currently it appears there are only two choices, 5kHz and 10kHz. On 2m over here 12.5kHz and 25kHz might also be handy. What do others think? I personally won't find it a big deal if those step sizes aren't provided because my preference is to use the memories to tune FM channels on 2m, especially as they are now instantly usable. But just for example the FT-817 provides all these options for FM step size: 5, 6.25, 10, 12.5, 15, 20, 25 and 50kHz. -- View this message in context: http://n2.nabble.com/K3-proposed-SSB-coarse-tuning-rate-change-tp3737732p3739420.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
[Elecraft] Help on Configuration
Hi All I am seriously considering a K3 and would like some advice on configuration. My main interests, apart from the normal SSB HF and DX, are experimenting with the narrow bandwidth digital modes. 6m would also be a new band for me. Occasionally I like to listen to the Short Wave broadcast bands so will probably include the Gen Coverage Rx option. The K3/100 would be the base configuration together with the Internal ATU and I would probably include the Internal 2m module, which I understand also requires the KXV3A module. The real question is what filter configuration I should consider. The FM filter is probably a given. I am not really interested in AM transmissions but do I need the AM filter to listen to the AM broadcast bands? I wish to have a good CW capability (CW Skimmer has made me go back to developing these skills) but the priority would be the narrow band modes. I would appreciate any comments/advice. Deane VK1DW __ 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: Speakers
I use a set of small Pyle speakers that I bought from buy.com for around $29 the pair. They sound great and have very good power handling for their size. Model PCB4BK. I also have the Radio Shack speaker mentioned by others as well as some Minimus 0.5 Radio Shack speakers that sound great and are wonderfully efficient. Doug -- K0DXV Phil LaMarche wrote: Dave, Those are what I have used for over 7 years from RS. Mine are RCA. Love them. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 CRA 1701 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David and Dianne on Comcast Sent: Tuesday, September 29, 2009 6:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: Speakers Hi All. I use a pair or Optimus/Minimus/Realistic/RCA 7 or 77 bookshelf speakers. There were several names over the years for the same speakers. A mainstay in the Radio Shack catalog for many years they are now long since discontinued but excellent examples of them are regularly appear on e-Bay for low cost. Their fidelity and power are remarkable and make them a perfect match to the K3's audio characteristics especially in AFX mode. check out: http://www.angelfire.com/vt/audio/minimus.html or http://www.parts-express.com/projectshowcase/kuzimus77/kuzimus77.html I have both sizes and the smaller ones are actually better in many regards than the bigger ones. My $.02 YMMV 73 de N1LQ-Dave __ 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] Help on Configuration
Deane Walkington wrote: The real question is what filter configuration I should consider. The FM filter is probably a given. I am not really interested in AM transmissions but do I need the AM filter to listen to the AM broadcast bands? No; you can listen to AM with the FM filter, and in fact this works great with wideband material such as music. The AM filter, being nearly half the width of the FM filter, would do a better job of rejecting nearby stations. I wish to have a good CW capability (CW Skimmer has made me go back to developing these skills) but the priority would be the narrow band modes. At minimum I'd suggest adding a 500-Hz 5-pole or 400-Hz 8-pole filter. If you want really outstanding rejection of close-in QRM, I'd also recommend our 200-Hz 5-pole filter. This filter is perfect for CW, PSK31 or RTTY when the going gets tough, such as during contests. Filters are automatically selected as you adjust the WIDTH control. If you want to optimize for weak-signal work, you should consider adding the sub receiver, which is identical in performance to the main receiver. It allows you to do full diversity mode, with two receiving antennas. In this case you'll probably want to match the sub RX crystal filters to those on the RF board. 73, Wayne N6KR __ 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] Help on Configuration
Keep in mind that the xtal roofing filters don't set the final bandwidth. They just protect the later stages of the K3 from really huge signals outside the roofing filter bandwidth. The final bandwidth is set by the DSP system in the second I.F. The DSP bandwidth is adjustable over a very wide range by turning a knob on the front of the K3. You'll get a 2.7 kHz filter with the base K3 (at least the last I looked ;-). It's perfect for SSB and, frankly, I prefer it for SWLing AM on the HF bands to a 6 kHz filter and using the envelope (AM) detector. Receiving double-sideband, full carrier AM as an SSB signal removes all sorts of issues with AM on the short waves. Selective fading, where the carrier drops out causing serious distortion, or in which one sideband shifts in phase with respect to the other over the skip path are no longer a problem when listening in SSB mode. For really critical listening, especially to music, most prefer the 6 kHz filter and using AM mode (envelope detection). Bottom line, for SWLing, SSB and most Data and CW, the 2.7 kHz will do very well since you can crank down the DSP bandwidth as needed. Then you said you wanted an FM filter, so that's a given for the basic configuration. Next I'd suggest a 6 kHz filter for listening to AM stations in full double-sideband-full-carrier mode. And beyond that perhaps a narrower filter - 1 kHz or 500 Hz - to augment your digital/CW operations. They will be of significant benefit if you're using the K3 in a very dense signal environment where there are likely very strong signals inside the bandpass of the 2.7 KHz filter. Of course you can add filters at any time, even if you buy a factory-assembled K3. Full instructions are in your Owner's manual. If you don't have the KRX3 subreceiver, adding filters is 'hammer simple', taking only a few minutes after you pull the top and bottom covers. If you have the KRX3, you'll need to consider what filters you want to equip it with, keeping in mind it's receive-only. Adding filters then takes a little longer since there's more disassembly involved, but it's still a well documented and straightforward procedure to do in the field requiring nothing more than a screwdriver. Ron AC7AC -Original Message- Hi All I am seriously considering a K3 and would like some advice on configuration. My main interests, apart from the normal SSB HF and DX, are experimenting with the narrow bandwidth digital modes. 6m would also be a new band for me. Occasionally I like to listen to the Short Wave broadcast bands so will probably include the Gen Coverage Rx option. The K3/100 would be the base configuration together with the Internal ATU and I would probably include the Internal 2m module, which I understand also requires the KXV3A module. The real question is what filter configuration I should consider. The FM filter is probably a given. I am not really interested in AM transmissions but do I need the AM filter to listen to the AM broadcast bands? I wish to have a good CW capability (CW Skimmer has made me go back to developing these skills) but the priority would be the narrow band modes. I would appreciate any comments/advice. Deane VK1DW __ 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: FM coarse tuning rates
I can add up to two more FM coarse tuning rates easily. Wayne N6KR On Sep 29, 2009, at 2:48 PM, Julian, G4ILO wrote: While we're on the subject of step sizes I suppose it is worth thinking about the requirements of those who will be using the K3 on FM. Currently it appears there are only two choices, 5kHz and 10kHz. On 2m over here 12.5kHz and 25kHz might also be handy. What do others think? I personally won't find it a big deal if those step sizes aren't provided because my preference is to use the memories to tune FM channels on 2m, especially as they are now instantly usable __ 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 size
I've looked for over an hour and I can't find the dimensions of a P3. Got to plan desk top configuration to fit it in. Getting tight here. Thanks in advance de K2GN/Larry __ 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 size
6 wide, and like the K3, 10 deep and 4 high. 73, Wayne N6KR On Sep 29, 2009, at 5:31 PM, Larry - K2GN wrote: I've looked for over an hour and I can't find the dimensions of a P3. Got to plan desk top configuration to fit it in. __ 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 size
Thought there would be one of those in with the radio I got back yesterday Wayne..:( -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Tuesday, September 29, 2009 8:34 PM To: Larry - K2GN Cc: Elecraft - K3 Subject: Re: [Elecraft] P3 size 6 wide, and like the K3, 10 deep and 4 high. 73, Wayne N6KR On Sep 29, 2009, at 5:31 PM, Larry - K2GN wrote: I've looked for over an hour and I can't find the dimensions of a P3. Got to plan desk top configuration to fit it in. __ 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 Front Panel Light Blockers
I have a K3 that completely blocks the front panel display light from showing through the push button holes. I have another K3 that DOES show some light through the push button holes when looking directly straight on or looking straight on at an acute side angle. I know the light is supposed to be totally blocked. I removed the front panel board and installed new light blocker strips on each side of the display with the adhesive side of these strips pressed towards the front panel . The new light blocker strips did not fix this. The light is still showing between the front panel button holes and the push-button bladder on both sides of the front panel display. so it appears that the bladder is not seating snugly against the back of the front panel. The buttons and LEDs seem to protrude through the front panel holes the same as the other K3. I am going to try to correct this again, but because it requires so much disassembly I would like to know if anyone else has had this trouble and what was done to correct it. Maybe I am overlooking something. Thanks for any help. Roy Morris W4WFB __ 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 Front Panel Light Blockers
On Sep 29, 2009, at 6:10 PM, Roy Morris wrote: I am going to try to correct this again, but because it requires so much disassembly I would like to know if anyone else has had this trouble and what was done to correct it. With POWER OFF - I used a straight pin, the kind that comes with dress shirts, to nudge the light blocker material through the space to the left of the A/B, REV and AB buttons. This worked easily in seconds without any disassembly. Work gradually and carefully. This method is my own invention and was NOT suggested nor recommended by Elecraft. YMMV. 73 - Steve WB6RSE __ 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] Elecraft SSB Net results (9-27-09)
The group on 14.316 before our net time is always nice and leaves the frequency by 1800Z. One of the regulars there, KA7GKN, helps keep that happening. A very courteous operator. Since 14316 is the 4th harmonic of the 3579 TV color burst frequency, I think that it makes sense to move from that spot to 14314, which appears to have fewer issues. 73, Phil, NS7P -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of telegrap...@att.net Sent: Monday, September 28, 2009 12:10 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft SSB Net results (9-27-09) I didn't hear any noise on 316 today with my beam pointed NW from here in AZ. Just a group of guys who were operating there and they even mentioned that the Elecraft net would be starting shortly and that they wanted to be off the frequency by net start time. Very nice of them but then again they were Canadians and they are known for their courtesy. At least the ones i know. Larry W0OGH K3 #763 -- Original message from Jim Wiley jwi...@alaska.net: -- The QRM on 14.316 is unlikely to go away, ever. This is the 4th harmonic of 3.579 MHz, the TV color burst frequency, and a popular choice for oscillators in all sorts of consumer and office devices (not necessarily TV receivers). This has been a problem on 20 meters for at least 30 years that I know of, perhaps longer. Also, because many devices that use this frequency derive it from a square-wave oscillator (a couple of gates). the harmonics of these devices are often prodigious. Another considerations is that because some designs need to have this frequency only approximately correct, it is no surprise to find some units running up to a few hundred Hertz plus or minus from 3.579, and thus (after multiplication by harmonics) hams end up with a broad band of QRM that can be 2 or 3 kHz from 14.316, or anywhere in between. Are all these sources illegal, and thus covered by part 15 rules? Yes, they are. This is part of what manufacturers certify on those Part 15 labels you see on so many items of consumer electronics. Technically, the owner of the device is at fault, and could be made to cease and desist using the offending item. However, then we have the real world. Identifying, finding and fixing what could be several dozen such sources in your immediate vicinity can be and for practical purposes is an unsurmountable problem. The FCC literally cannot help you here, as much as they might want to. They have neither the budget or time to solve literally tens or even hundreds of millions (no exaggeration here!) of these cases. Pandora is well and truly out of the box on this one. I would respectfully suggest a permanent change of net frequency to something less likely to have this problem. - Jim, KL7CC Phil and Christina wrote: We kept our frequency on 14.314 MHz again today to try to dodge some QRM that has been persistent on 14.316 for some people. __ 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] K3 Front Panel Light Blockers
On Sep 29, 2009, at 6:10 PM, Roy Morris wrote: I am going to try to correct this again, but because it requires so much disassembly I would like to know if anyone else has had this trouble and what was done to correct it. With POWER OFF - I used a straight pin, the kind that comes with dress shirts, to nudge the light blocker material through the space to the left of the A/B, REV and AB buttons. This worked easily in seconds without any disassembly. Work gradually and carefully. This method is my own invention and was NOT suggested nor recommended by Elecraft. YMMV. 73 - Steve WB6RSE * Make that the A/B, PRE, and NB buttons. __ 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] Help on Configuration
Hi Deane - for what it's worth. I think for most non-critical (non-contest, non-DX) users, the K3 standard 2.7 kHz SSB filter does a good job for CW and SSB modes. The K3 DSP software allows you to narrow the bandwidth for CW to 500 Hz or less. The DSP works much better than the Yaesu and Icom (IC-746 -- nice radio in many ways) radios I have used recently in my shack. HOWEVER -- the additional , narrow filters ( I have the K3 400 Hz filter ), do make a difference on CW when contests rule the band. I don't think you'll go wrong with a K3 with whatever configuration you choose now -- you can easily add filters and options in the future. Barry, K8LEF __ 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] speakers
I've had very good results with a pair of Sony B-1000 bookshelf speakers. They're just slightly larger than the Insignia/KLH and can often be found at Radio Shack, Best Buy and others for $49.95 (per pair) on sale. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Tuesday, September 29, 2009 12:58 PM To: Dan Copeland Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] speakers Hi Dan, I recommend a pair of Best Buy Insignia, 4-inch, 3-way surround speakers (same as the KLH Model 970A or other similar models). These are unpowered bookcase speakers, but provide plenty of volume when used with the K3. They're very inexpensive and sound great. Size: about 4W x 8H x 4D. Having two speakers allows you to get L/R separation of the main and subreceivers, as well as take advantage of the K3's AFX simulated stereo mode. 73, Wayne N6KR On Sep 29, 2009, at 7:00 AM, Dan Copeland wrote: I am looking at speakers for my K3 __ 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] Replacing the Lead acid shell inside K2 with Li-Po cells
Hello Group, 3.7v 3300mAH Li-Po cells are cheaply available locally. Multifunction balance intelligent chargers are cheap as well. I am seriously thinking of replacing the lead acid cell inside the KBT2 with 3 x 3.7v Li-Po cells. However, charging of the Li-Po cells requires multifunction charger. The existing battery circuity inside K2 seems not fit for this purpose. A direct connection to the battery terminals is required. I would be grateful if any of you could advise me the 'do' and 'don't' that I should pay attention to. With the Li-Po cells installed, the weight of K2 QRP will be much reduced with more battery capacity. K2 is even more suitable for ARES purposes. Looking forward to your advice. TNX 73 Johnny VR2XMC Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ 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 For sale
I have a K3 for sale which I bought Feb 2009. The cost when purchased was $4054.00 and I am asking $3500.00. The K3 was factory built and this is how I ordered the radio. This is one great radio that Elecraft has design, just to much radio for me. 73 Richard WH6S My Email address: w...@hawaii.rr.com K3/100-F K3 100W Transceiver-Factory Assembled KAT3-F K3 ATU Factory Installed KBPF3K3 General Coverage RX Module KFL3A-200K3 200Hz, 5 Pole Filter KFL3A-1.8k 1.8 kHz, 8-pole Roofing Filter KFL3A-6K AM K3 6 kHz, 8 Pole Filter KFL3B-FM FM-Bandwidth, 8 Pole Roofing Filter K3FLMATCHK3 5 Pole Filter Matching to 40Hz (2.7) KPCA-F Power Cable Assembly (Spare Cable) KRX3 K3 2nd RX Modular Kit KTCXO3-1 K3 TCXO 1ppm F/W Correction TO 0.5 ppm KFL3A-1.8k 1.8 kHz, 8 Pole Roofing Filter (for Second Receiver) KXV3 K3 Transverter Interface MH2-RHand Held Microphone for the K2/K3 __ 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] Replacing the Lead acid shell inside K2 with Li-Po cells
Johnny, Take a look at my website article to see how I connected a SmartCharger to the K2 internal battery. See www.w3fpr.com. True, the battery and charger are different, but the concept is the same. The battery connection should be fused for safety. 73, Don W3FPR Johnny Siu wrote: Hello Group, 3.7v 3300mAH Li-Po cells are cheaply available locally. Multifunction balance intelligent chargers are cheap as well. I am seriously thinking of replacing the lead acid cell inside the KBT2 with 3 x 3.7v Li-Po cells. However, charging of the Li-Po cells requires multifunction charger. The existing battery circuity inside K2 seems not fit for this purpose. A direct connection to the battery terminals is required. I would be grateful if any of you could advise me the 'do' and 'don't' that I should pay attention to. With the Li-Po cells installed, the weight of K2 QRP will be much reduced with more battery capacity. K2 is even more suitable for ARES purposes. Looking forward to your advice. TNX 73 Johnny VR2XMC __ 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
