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] KAF2?
Does anyone have a KAF2 audio filter module that's surplus to their needs? Tnx, es 73 Eric -- W. Eric McFadden Athens, Ohio http://home.frognet.net/~mcfadden/wd8rif/radio.htm http://McFaddenPhoto.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] For Sale KXPD1 paddle with K2 Mounting Bracket Pelican Case
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 -- View this message in context: http://n2.nabble.com/For-Sale-KXPD1-paddle-with-K2-Mounting-Bracket-Pelican-Case-tp3729625p3729625.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 FSK power transients
I'm surprised I can see a difference between the two tones through the flatter filter 8-pole filter. It's just enough to see on the 200W scale of an old (pretty much uncalibrated) Daiwa CN-520. With the 8 pole filter I see 2 watts difference on the N8LP LP-100 wattmeter. However, in AFSK A or DATA A modes for PSK I see as much as 15 watts (0.7 dB) difference (maximum to minimum) as the tone frequency varies from 200 Hz to 2800 Hz in DATA A (FC=1500 Hz) or 1000 Hz to 3500 Hz in AFSK (FC=2210 Hz). 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Randy Farmer Sent: Sunday, September 27, 2009 7:57 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] K3 FSK power transients The roofing filter IS offset to put the RTTY tones (Data | Pitch) in the center of the filter. Good to know. That's how I would have done it I were the designer. I'm surprised I can see a difference between the two tones through the flatter filter 8-pole filter. It's just enough to see on the 200W scale of an old (pretty much uncalibrated) Daiwa CN-520. 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] ESSB and the rules
N2DTS: I don't understand why some people like to limit other peoplesactivity, or choices. Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ -- The real proof that there is intelligent life in outer space is that they haven't come here. No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.113/2400 - Release Date: 09/28/09 05:51:00 __ 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] For Sale KXPD1 paddle with K2 Mounting Bracket Pelican Case
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-tp3729625p3729858.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] ESSB and the rules
And the FCC regulations are vague, i.e. ...than necessary..., ...good amateur practice..., ...adjacent frequencies... None of these are quantifiable. What constitutes compliance is a matter of personal opinion. Compare these requirements to those controlling emissions outside of the amateur frequencies. There you will see specific numbers that can be measured. AFAIK that vagueness is intentional. For many Hams, the hobby is all about experimenting, restoring and using various types of gear from antiques to trying out new ideas on the latest rigs. The vague regulations provide room for that. We'll always have those who abuse the system either carelessly or intentionally. After all, Hams are humans too. Ron AC7AC -Original Message- N2DTS: I don't understand why some people like to limit other peoplesactivity, or choices. Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ __ 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 FSK power transients
Dave - I experience the same issue and Elecraft indicated that the FSK mark/space power fluctuations are caused by the transmit filter's passband ripple and where the transmit signal falls within the filter's passband. I'm using the standard 5 pole 2.7khz filter. They indicated the 8 pole filter should be flatter. 73 Phil NA4M Dave Hachadorian wrote: I'm getting my K3's set up for the CQWW DX RTTY, and notice that there is a significant variation in power output whenever the FSK goes from mark to space or space to mark. One of these K3's is driving a high gain tetrode amp, and the amp's screen current is jumping all over the place. The power transient is only at the time of transition. The steady-state power of the mark and space are equal. I've complained about this before, but it seems to be even worse now. I'm using FW rev 3.30. This amplitude modulation has got to be producing some illegal sidebands. Dave Hachadorian, K6LL Yuma, AZ . __ 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-FSK-power-transients-tp3712691p3716185.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
[Elecraft] [K3] K3 KY command and RTTY
Hi, 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. Any suggestions? 73 de Tom, DL2RUM -- View this message in context: http://n2.nabble.com/K3-KY-command-and-RTTY-tp3730340p3730340.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 2-tone IMD test.
Chuck, the most significant modification - the IF-amplifier buffer and AF-amplifier circuit. The first mod helps to provide much smaller own noise level for K3 (10dB down !!!), and second mod takes more realistic sound. We talks about it earlier in the thread: http://mailman.qth.net/pipermail/elecraft/2009-June/111985.html The mods for 1-st and 2-nd mixer can be helpful only for multi-TX high-power contest station. In any event, all pictures of these mods here: http://ur5lam.jimdo.com/elecraft-k3-mod-s-page/ if you want to see the big photos, you find and download it here: http://forum.cqham.ru/viewtopic.php?t=17137postdays=0postorder=ascstart=870 http://forum.cqham.ru/viewtopic.php?t=17137postdays=0postorder=ascstart=900 All of these mods are not difficult. But results is very nice. My K3 has much poor sound in A/B comparison with my small K2. But now, I have the new Radio, really excellent receiver and beautiful sound after mods. I can hear the difference by my ear, I can see the difference by my eyes on the comparison plots. FW last beta 3.30 73! GL! Alex UR5LAM 2009/9/27 Chuck - AE4CW ae...@att.net Alex, Can you please be specific about which HW mods you installed? Are they all published by Elecraft? I don't recall any 1st and 2nd Mixer mods being published. If not, can you please share them? Are the software mods in the current beta FW, i.e. 3.30? Thanks. Chuck, AE4CW Alexander Ponomarenko-5 wrote: Today we finished our K3 IMD-test in our home-laboratory. :) We has the nice results I think. Same improvements we have after modifications in hardware (mods for 1st and 2nd Mixer, IF-buffer and AF-amplifier). Same improvements we have after excellent software AGC-mods from Lyle Johnson. And here is the nice result in total. 2-tone-IMD-Plot for K3/100F BEFORE mods: http://forum.cqham.ru/download.php?id=48688 here we can see very dirty and nonlinear signal Plot for K3/100F AFTER hardware mods: http://forum.cqham.ru/download.php?id=48689 more clean and linear signal Plot for K3/100F AFTER hardware mods AND new AGC: http://forum.cqham.ru/download.php?id=48677 and nice result in total. GL! 73! Alex UR5LAM __ 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] ESSB and the rules
Hell if you wanna go that far I can hear and understand SSB as long as things are lined up properly at 1.5Khz. Its fairly common during field day that I'll use 1.5 to 1.7 Khz. Why are so many people wasting bandwidth transmitting any wider than that? One could also argue that ESSB is an emission type that requires that additional bandwidth in order to move all the data. AM uses a lot of bandwidth to get the data across and that is a perfectly legal and allowed emission type. Personally I don't do ESSB and don't even have the filters to do so. But using this set of rules to state that you shouldn't do ESSB is the same as saying that no one should use SSB because they could carry out the communications via CW in less bandwidth. ~BTH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Payne Sent: Monday, September 28, 2009 7:15 AM To: elecraft@mailman.qth.net Subject: [Elecraft] ESSB and the rules N2DTS: I don't understand why some people like to limit other peoplesactivity, or choices. Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ -- The real proof that there is intelligent life in outer space is that they haven't come 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
[Elecraft] K2 scratchy volume control
I have a K2, serial 2592 that has recently developed a noisy volume control and turning the RF gain causes the AGC to jump. Guessing the RF control is noisy also. I disassembled the K2 thinking I could spray a cleaner in the controls - but there are no openings in the pots. So these pots need to be replaced - what do you recommend? Note: I did the volume control mod several years so that doesn't need to be done. Thanks, Paul AD5IW __ 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 hum problem - not the usual?
After enjoying my K3 for about nine months, I was recently alerted to audible 60-Hz hum on my transmitted audio signal. After reading the many hum related posts on the reflector, I began investigating. Step 1 was to remove all connections to the rig except the DC power and the coax to the external PA (I placed a direct short on the keying line input at the PA). Without a mic connected, the indication of the problem is that the PA registers output power with no audio input. The problem only occurs in an SSB mode when the nearby PA is both on and enabled (i.e., not on standby) and when the K3 is both within about 8-in of the PA and parallel or at right angles to it; rotating the rig about 15 degrees around the z-axis eliminated the hum. All in the usual vein, so far. There are several aspects of this problem that I find hard to understand: - With all conditions apparently constant, the problem is at least somewhat intermittent and will build up to full output over about a 3 second period when it does occur - When hum is being produced, the K3 output power meter reads zero while the external PA is putting out something near full power! (Ordinarily, it takes 20 watts of output power from the K3 to drive the external to this power level) - Lowering the output power setting on the K3 reduces the amount of hum power registering on the PA output power meter; there is a marked reduction in hum power when I pass the K3's internal PA power threshold and the hum power goes to zero when the K3 power output is set to zero - There is hysteresis in the output power registered by the external PA vs. the output power setting on the K3; i.e., starting with K3 output power set to zero, the K3 output power setting which produces the onset of hum power as shown by the external PA is a larger value than the K3 output power setting at which the external PA hum power decreases / disappears. I am space challenged inasmuch as I have an SO2R setup, so moving the K3 will be difficult. Any thoughts on what's going on? -- 73 -- Brian -- K1LI __ 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] ESSB and the rules
Brett, reread part (a) of the FCC rules below. The maximum bandwidth requirement is applied to each individual emission type (mode). The FCC acknowledges the right to use voice modes like SSB and even AM ... it just says you shouldn't abuse the bandwidth when you do so. Dave AB7E Brett Howard wrote: But using this set of rules to state that you shouldn't do ESSB is the same as saying that no one should use SSB because they could carry out the communications via CW in less bandwidth. ~BTH Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ __ 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] Need K3 firmware testers (extended AF bass, live memory recall, flat data-mode EQ, etc.)
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 MCU 3.37 / DSP 2.36, 9-25-2009 * NO RX EQ OR TX EQ IN DATA MODES. (That is, the response is flat.) * LIVE MEMORY RECALL (MV): If you tap MV, then start rotating VFO A to select a memory channel, the K3 will now switch to the band/mode specified in each memory. Exit memory recall by tapping MV a second time. * VFO COARSE STEP ROUNDING: Tap '1' in the VFO CRS menu entry to select RND=NO or YES. (Default for new K3s will be YES.) If YES, the VFO frequency will be rounded up/down when COARSE tuning is in effect. Coarse step size is selected using this same menu entry. Note: The RIT/XIT control can be used to move the VFO in coarse steps whenever RIT and XIT are both turned off. To disable this feature, set CONFIG:VFO OFS to OFF. * RF GAIN CALIBRATION PROCEDURE UPDATED: Changes to both K3 Utility and the DSP code are now in place to make RF GAIN calibration work smoothly. Main/Sub S-meter discrepancy also eliminated. All K3 owners are encouraged to run the RF GAIN cal procedure on both main and sub receivers. (Requires 50 uV signal source, such as an Elecraft XG1 or XG2.) Please use the latest rev of K3 Utility. * IMPROVED RX LOW-FREQUENCY RESPONSE in AM, SSB and CW modes. (For best results, use headphones or external speakers with extended bass.) NORMalizing the DSP passband still sets the low-frequency bound to about 100 Hz in SSB modes. But by using SHIFT, WIDTH or LO CUT, you can extend the audio response to around 50 Hz. User-configurable NORM1 and NORM2 settings, or presets I/II, can then be used to store desired values (per-mode). The two lowest MAIN:RX EQ ranges (50 and 100 Hz) can be used to further enhance bass. * SUB RX NOISE BLANKER NOW FULLY INDEPENDENT OF MAIN: This includes the on/off state and NB LEVEL settings. Note: Set CONFIG:NB SAVE to YES if you wish to keep the noise blanker ON even when changing bands. The NB on/off state is stored on a per-band basis for both main and sub receivers. * 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. * PL TONE DEVIATION ADJUSTABLE: Tapping '1' in CONFIG:FM DEV changes menu entry name to PL DEV and allows setting PL tone deviation from 300-600 Hz in 30-Hz steps (default is 360 Hz). * EU REPEATER 1750 HZ PL TONE BURST: In FM mode, if PL TONE is selected and the tone pitch is set to 1750 Hz (using the PITCH switch), a 500 ms tone burst at 1750 Hz will be transmitted on each activation of PTT. As a reminder, the -T icon will flash briefly at the start of each of each transmission, then turn off until you’ve finished transmitting. * EXTENDED 6-METER TUNING RANGE: The VFO can now be tuned down to 44 MHz to monitor signals that may be correlated with 6-meter band openings. Since the K3 has narrow band-pass filters, loss rapidly increases as the VFO is tuned below 49 MHz (-34 dB typ. at 45 MHz). If a preamp is in use ahead of the band pass filter (such as an Elecraft PR6), the noise figure may still be adequate for monitoring strong 44-49 MHz signals. * KEYPAD (1-9) SWITCH TONES WORKING FOR MV AND VM, M1-x: Some keypad switches weren't producing a dual tone during memory store/recall operations and message play. __ 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] RE: KAT100 error Fixed Part One
Recap:KAT100 Tuner was going through the motions of tuning showing an SWR of 1.0-1 but K2 showing a high SWR. Reduced power on TX on all bands. SWR scale lights on the KAT100 not lighting during tune or TX. I replaced D1 and D2 diodes on the KAT100, per Skip, WB4DAD's suggestion. This has the KAT100 tuning and showing lights operating as they should. I suspect a near lightning strike or power surge caused these to go bad? PART 2: The only issue I see now is that the tuner always reverts to ANT 1 on power up. If I shut down while set to ANT2, when I power up it will show 2 for a second then go to 1. Anyone had this problem? Thanks again to WB4DAD and his friend that passed this info to him. Also, I would like to thank Don, W3FPR for his help. He has helped me on several problems and gets my vote into the Elecraft Hall of Fame. I suspect he would have solved this as well if not for my post being rejected from the site. Now to put it all back together! Note: I ordered 10 of these diodes from an internet source, but being impatient I found them at FRY's. Same thing with the 40 pin firmware socket. So if anyone needs diodes or 20 pin sockets, feel free to contact me off list. 73 Damon W4HDM http://www.w4hdm.camstreams.com/ Live Shack Feed SKCC 3729T Centurion # 164 Tribune # 73 (x3) WAS # 23 YoungBuckAward NAQCC #3633 K2#00473 _ View message @ http://n2.nabble.com/KAT100-error-tp3696887p3699372.html To unsubscribe from KAT100 error, click (link removed) oLm5ldHwzNjk2ODg3fDM4MzkwNzk1 here. - W4HDM-DAMON-K2#473 -- View this message in context: http://n2.nabble.com/KAT100-error-tp3696887p3731272.html Sent from the [K2] 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?
On Mon, 28 Sep 2009 13:29:54 -0400, Brian Machesney wrote: The problem only occurs in an SSB mode when the nearby PA is both on and enabled (i.e., not on standby) and when the K3 is both within about 8-in of the PA and parallel or at right angles to it; rotating the rig about 15 degrees around the z-axis eliminated the hum. All in the usual vein, so far. 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. There's little communications value to the speech below 300 Hz anyway, and it burns TX power, so it's a win-win. Also, the acoustic stuff in that lower frequency range includes breath pops and room noise. It's also possible to have magnetic coupling on input wiring if you've managed to form it into a big loop, but the transformers are the more likely cause. I ran into the loop problem once when I jury-rigged a headphone amp for SO2R. No problem in TX audio, but it was in my phones. 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. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] ESSB and the rules
Read my message again. ESSB is a mode! I'm saying that people who claim ESSB is wasteful then why can't CW ops say that SSB is wasteful? ~BTH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert Sent: Monday, September 28, 2009 10:38 AM To: elecraft Subject: Re: [Elecraft] ESSB and the rules Brett, reread part (a) of the FCC rules below. The maximum bandwidth requirement is applied to each individual emission type (mode). The FCC acknowledges the right to use voice modes like SSB and even AM ... it just says you shouldn't abuse the bandwidth when you do so. Dave AB7E Brett Howard wrote: But using this set of rules to state that you shouldn't do ESSB is the same as saying that no one should use SSB because they could carry out the communications via CW in less bandwidth. ~BTH Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ __ 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] Need K3 firmware testers (extended AF bass, live memory recall, flat data-mode EQ, etc.)
I can load it up and test things out this evening when I get off work (arnd 5pm). I'm always game for testing new things... ~BTH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Monday, September 28, 2009 11:21 AM To: Elecraft Reflector; elecraft...@yahoogroups.com Subject: [Elecraft] Need K3 firmware testers (extended AF bass,live memory recall, flat data-mode EQ, etc.) 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 MCU 3.37 / DSP 2.36, 9-25-2009 * NO RX EQ OR TX EQ IN DATA MODES. (That is, the response is flat.) * LIVE MEMORY RECALL (MV): If you tap MV, then start rotating VFO A to select a memory channel, the K3 will now switch to the band/mode specified in each memory. Exit memory recall by tapping MV a second time. * VFO COARSE STEP ROUNDING: Tap '1' in the VFO CRS menu entry to select RND=NO or YES. (Default for new K3s will be YES.) If YES, the VFO frequency will be rounded up/down when COARSE tuning is in effect. Coarse step size is selected using this same menu entry. Note: The RIT/XIT control can be used to move the VFO in coarse steps whenever RIT and XIT are both turned off. To disable this feature, set CONFIG:VFO OFS to OFF. * RF GAIN CALIBRATION PROCEDURE UPDATED: Changes to both K3 Utility and the DSP code are now in place to make RF GAIN calibration work smoothly. Main/Sub S-meter discrepancy also eliminated. All K3 owners are encouraged to run the RF GAIN cal procedure on both main and sub receivers. (Requires 50 uV signal source, such as an Elecraft XG1 or XG2.) Please use the latest rev of K3 Utility. * IMPROVED RX LOW-FREQUENCY RESPONSE in AM, SSB and CW modes. (For best results, use headphones or external speakers with extended bass.) NORMalizing the DSP passband still sets the low-frequency bound to about 100 Hz in SSB modes. But by using SHIFT, WIDTH or LO CUT, you can extend the audio response to around 50 Hz. User-configurable NORM1 and NORM2 settings, or presets I/II, can then be used to store desired values (per-mode). The two lowest MAIN:RX EQ ranges (50 and 100 Hz) can be used to further enhance bass. * SUB RX NOISE BLANKER NOW FULLY INDEPENDENT OF MAIN: This includes the on/off state and NB LEVEL settings. Note: Set CONFIG:NB SAVE to YES if you wish to keep the noise blanker ON even when changing bands. The NB on/off state is stored on a per-band basis for both main and sub receivers. * 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. * PL TONE DEVIATION ADJUSTABLE: Tapping '1' in CONFIG:FM DEV changes menu entry name to PL DEV and allows setting PL tone deviation from 300-600 Hz in 30-Hz steps (default is 360 Hz). * EU REPEATER 1750 HZ PL TONE BURST: In FM mode, if PL TONE is selected and the tone pitch is set to 1750 Hz (using the PITCH switch), a 500 ms tone burst at 1750 Hz will be transmitted on each activation of PTT. As a reminder, the -T icon will flash briefly at the start of each of each transmission, then turn off until you've finished transmitting. * EXTENDED 6-METER TUNING RANGE: The VFO can now be tuned down to 44 MHz to monitor signals that may be correlated with 6-meter band openings. Since the K3 has narrow band-pass filters, loss rapidly increases as the VFO is tuned below 49 MHz (-34 dB typ. at 45 MHz). If a preamp is in use ahead of the band pass filter (such as an Elecraft PR6), the noise figure may still be adequate for monitoring strong 44-49 MHz signals. * KEYPAD (1-9) SWITCH TONES WORKING FOR MV AND VM, M1-x: Some keypad switches weren't producing a dual tone during memory store/recall operations and message play. __ 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 possible subject for firmware update.
I use a Steppir antenna here. No problem tracking the frequency as shown on VFO A. When I go split and therefore transmit on VFO B the antenna frequency is not updated for operation in a different band segment. It still tracks VFO A. On my previous radio, FT1000D, the freqency information followed the VFO selected for transmission. Not a big deal since the antenna is reasonly flat even when not optimized for a different part of the band. 73 Elliott WA6TLA __ 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] ESSB and the rules
Read my message again. ESSB is a mode! ESSB is NOT a mode ... it is a wide version of SSB analogous to the difference between 20.0A3 (Standard broadcast AM) and 6.0A3A (6 KHz wide communications service AM). When the FCC rules were written, the minimum bandwidth requirement meant exactly that amateurs were not to use 20.0A3 instead of 6.0A3 nor were Amateurs to use other similarly wide modes like 850 Hz shift RTTY instead of 170 Hz shift, etc. The minimum bandwidth requirements also prohibit other emission artifacts - like key clicks and excessively sharp keying waveforms on CW and incidental phase or frequency modulation on phone. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Monday, September 28, 2009 3:12 PM To: 'David Gilbert'; 'elecraft' Subject: Re: [Elecraft] ESSB and the rules Read my message again. ESSB is a mode! I'm saying that people who claim ESSB is wasteful then why can't CW ops say that SSB is wasteful? ~BTH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert Sent: Monday, September 28, 2009 10:38 AM To: elecraft Subject: Re: [Elecraft] ESSB and the rules Brett, reread part (a) of the FCC rules below. The maximum bandwidth requirement is applied to each individual emission type (mode). The FCC acknowledges the right to use voice modes like SSB and even AM ... it just says you shouldn't abuse the bandwidth when you do so. Dave AB7E Brett Howard wrote: But using this set of rules to state that you shouldn't do ESSB is the same as saying that no one should use SSB because they could carry out the communications via CW in less bandwidth. ~BTH Excerpted from FCC rules Part 97: §97.307 Emission standards. (a) No amateur station transmission shall occupy more bandwidth than necessary for the information rate and emission type being transmitted, in accordance with good amateur practice. (b) Emissions resulting from modulation must be confined to the band or segment available to the control operator. Emissions outside the necessary bandwidth must not cause splatter or keyclick interference to operations on adjacent frequencies. It's the law!! Minimum practical bandwidth, no splatter, no spurs. FCC can and will cite stations for violations. 73 de W4CWZ __ 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] RE: K3 2-tone IMD test.
Alex, Thank you! I am studying your mods and will report back if I decide to do them. Chuck, AE4CW _ From: Alexander Ponomarenko-5 (via Nabble) [mailto:ml-user+44544-1724029...@n2.nabble.com] Sent: Monday, September 28, 2009 12:50 PM To: Chuck - AE4CW Subject: Re: K3 2-tone IMD test. Chuck, the most significant modification - the IF-amplifier buffer and AF-amplifier circuit. The first mod helps to provide much smaller own noise level for K3 (10dB down !!!), and second mod takes more realistic sound. We talks about it earlier in the thread: http://mailman.qth.net/pipermail/elecraft/2009-June/111985.html The mods for 1-st and 2-nd mixer can be helpful only for multi-TX high-power contest station. In any event, all pictures of these mods here: http://ur5lam.jimdo.com/elecraft-k3-mod-s-page/ if you want to see the big photos, you find and download it here: http://forum.cqham.ru/viewtopic.php?t=17137 http://forum.cqham.ru/viewtopic.php?t=17137postdays=0postorder=ascstart =870 postdays=0postorder=ascstart=870 http://forum.cqham.ru/viewtopic.php?t=17137 http://forum.cqham.ru/viewtopic.php?t=17137postdays=0postorder=ascstart =900 postdays=0postorder=ascstart=900 All of these mods are not difficult. But results is very nice. My K3 has much poor sound in A/B comparison with my small K2. But now, I have the new Radio, really excellent receiver and beautiful sound after mods. I can hear the difference by my ear, I can see the difference by my eyes on the comparison plots. FW last beta 3.30 73! GL! Alex UR5LAM 2009/9/27 Chuck - AE4CW [hidden email] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=3730559i=0 Alex, Can you please be specific about which HW mods you installed? Are they all published by Elecraft? I don't recall any 1st and 2nd Mixer mods being published. If not, can you please share them? Are the software mods in the current beta FW, i.e. 3.30? Thanks. Chuck, AE4CW Alexander Ponomarenko-5 wrote: Today we finished our K3 IMD-test in our home-laboratory. :) We has the nice results I think. Same improvements we have after modifications in hardware (mods for 1st and 2nd Mixer, IF-buffer and AF-amplifier). Same improvements we have after excellent software AGC-mods from Lyle Johnson. And here is the nice result in total. 2-tone-IMD-Plot for K3/100F BEFORE mods: http://forum.cqham.ru/download.php?id=48688 here we can see very dirty and nonlinear signal Plot for K3/100F AFTER hardware mods: http://forum.cqham.ru/download.php?id=48689 more clean and linear signal Plot for K3/100F AFTER hardware mods AND new AGC: http://forum.cqham.ru/download.php?id=48677 and nice result in total. GL! 73! Alex UR5LAM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=3730559i=1 This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html _ View message @ http://n2.nabble.com/K3-2-tone-IMD-test-tp3715261p3730559.html To unsubscribe from Re: K3 2-tone IMD test., click (link removed) zNzIyMzMwfDE2NDUzODAzODg= here. -- View this message in context: http://n2.nabble.com/K3-2-tone-IMD-test-tp3715261p3731503.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
[Elecraft] K2 Choppy keying
Hi Just been playing with a K2 which was sent if for repair of the QRP PA. The K2 seems to have a funny keying characteristic. On cw the keying characteristic seems quite poor at high speeds. I notice too that if one rotates the receive irt knob while sending the keying goes horribly choppy. Id be interested in any opinion. Or are they all like this!? 73 Bob G3PJT __ 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?
Would wrapping some of this Ultraperm 80 shielding around the K3's audio transformers be a solution? (http://www.goldmine-elec-products.com/prodinfo.asp?number=G16600A) 73 -- Joe KB8AP On Sep 28, 2009, at 12:06 PM, Jim Brown wrote: On Mon, 28 Sep 2009 13:29:54 -0400, Brian Machesney wrote: The problem only occurs in an SSB mode when the nearby PA is both on and enabled (i.e., not on standby) and when the K3 is both within about 8-in of the PA and parallel or at right angles to it; rotating the rig about 15 degrees around the z-axis eliminated the hum. All in the usual vein, so far. 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. There's little communications value to the speech below 300 Hz anyway, and it burns TX power, so it's a win- win. Also, the acoustic stuff in that lower frequency range includes breath pops and room noise. It's also possible to have magnetic coupling on input wiring if you've managed to form it into a big loop, but the transformers are the more likely cause. I ran into the loop problem once when I jury-rigged a headphone amp for SO2R. No problem in TX audio, but it was in my phones. 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. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ 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] K2 scratchy volume control
Paul, Install the Modified AF Gain Wiring (I believe you will find it on the Elecraft website with the Application Notes for the K2), also if your pot is already scratchy, I suggest you order a new pot, even if you could get it in, the control cleaner is not likely to work for long. 73, Don W3FPR paul wrote: I have a K2, serial 2592 that has recently developed a noisy volume control and turning the RF gain causes the AGC to jump. Guessing the RF control is noisy also. I disassembled the K2 thinking I could spray a cleaner in the controls - but there are no openings in the pots. So these pots need to be replaced - what do you recommend? Note: I did the volume control mod several years so that doesn't need to be done. Thanks, Paul AD5IW __ 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] ESSB and the rules
Not according to the FCC Dave AB7E Brett Howard wrote: Read my message again. ESSB is a mode! __ 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] N2CQ QRP Contest Calendar: Oct 2009
~ N2CQ QRP CONTEST CALENDAR October 2009 ~ Worked All ARCI Challenge (CW/Dig/Ph) QRP Event! thru Dec 31 Info: http://www.qrparci.org/waac ~ TARA PSK31 Rumble (PSK31 only) ... QRP Category Oct 3, z to 2400z Rules: http://www.n2ty.org/seasons/tara_rumble_rules.html ~ German Telegraphy Contest (CW) ... QRP Category Oct 3, 0700z to 0959z Rules: http://kontest.de/dtc/DTC-Rules_e.pdf ~ EU SPRINT CONTEST - Autumn (SSB) ... 100W category Oct 3, 1600z to 1959z Rules: http://www.eusprint.com/index.php?page=140lang=g ~ California QSO Party (CW/SSB) ... QRP Category Oct 3, 1600z to Oct 4, 2159z Rules: http://www.cqp.org/ ~ RSGB 21/28 MHz Contest (CW/SSB) ... QRP Category Oct 4, 0700z to 1900z Rules: http://www.vhfcc.org/hfcc/rules/2009/r2128.shtml ~ Adventure Radio Spartan Sprint (CW) *** QRP Event! *** Oct 6, 0100z to 0300z (First Monday 9 PM EDT) Info: http://adventure-radio.org/wiki/index.php?title=Spartan_Sprints ~ 10-10 Day Sprint (All) ... QRP Category Oct 10, 0001z to 2359z Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf ~ Worked All Britain HF Contest (Phone) ...QRP Category Oct 10, 1200z to Oct 11, 1200z Rules: http://wab.intermip.net/Contest%20Rules.php ~ Pennsylvania QSO Party (CW/SSB/Digital) ... QRP Category Oct 10, 1600z to Oct 11, 0500z Oct 11, 1300z to Oct 11, 2200z Rules: http://www.nittany-arc.net/paqso.html ~ Arizona QSO Party (CW/PH) ... QRP Category Oct 10, 1600z to Oct 11, 0600z and Oct 11, 1400z to Oct 11, 2350z Rules: http://www.azqsoparty.org/rules.htm ~ EU SPRINT CONTEST - Autumn (CW) ... 100W category Oct 10, 1600z to 1959z Rules: http://www.eusprint.com/index.php?page=140lang=g ~ FISTS Fall Sprint (CW) ... QRP Category Oct 10, 1700z to 2100z Rules: http://www.fists.org/sprints.html ~ North American Sprint (RTTY) ... QRP Category Oct 11, Z to 0400Z Rules: http://www.ncjweb.com/sprintrules.php ~ SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category Oct 11, z to 2359z Rules: http://www.skccgroup.com/sprint/wes/ ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EDT: Oct 13, 8:30 PM to 10:30 PM UTC: Oct 14, 0030Z to 0230Z Rules: http://www.arm-tek.net/~yoel/contests.html ~ LZ Open 80m Sprint (CW) ... QRP Category Oct 17, z to 0400z Rules: http://www.lzopen.com/lzocc80/index.htm ~ QRP ARCI Fall QSO Party (CW) *** QRP Contest *** Oct 17, 1200z to Oct 18, 2400z Rules: http://www.qrparci.org ~ Iowa QSO Party (CW/Ph/Dig) Oct 17, 1400z to 2300z Rules: http://www.wa0dx.org/iaqsoparty.html ~ STEW PERRY TOPBAND DISTANCE CHALLENGE WARMUP - QRP CATEGORY Oct 17, 1500z to Oct 18, 1500z Rules: http://web.jzap.com/k7rat/stew.html ~ Worked All Germany Contest (CW/SSB) ... QRP Category Oct 17, 1500z to Oct 18, 1459z Rules: http://www.darc.de/referate/dx/xedcgr.htm ~ New York QSO Party (Ph/CW/Dig) ... QRP Category Oct 17, 1800z to Oct 18, 0600z Rules: http://www.nyqp.org/rules.php ~ 070 Club 160m Great Pumpkin Sprint (PSK) ... QRP Category Oct 17, 2000 to Oct 18, 0200 (Local Time) Rules: http://www.podxs070.com/contests/160m_sprint_rules09.htm ~ Illinois QSO Party (CW/PH)... QRP Category Oct 18, 1700z to Oct 19, 0100z Rules: http://www.w9awe.org/ILQP2009.html ~ RUN FOR THE BACON (CW) *** QRP CONTEST *** EDT: Oct 18, 9 PM to 11 PM UTC: Oct 19, 0100z 0300z Rules: http://www.fpqrp.com/ ~ Ten-Ten QSO Party (CW/Digital) ... QRP Category Oct 24, 0001z to Oct 25, 2359z Rules:
Re: [Elecraft] ESSB and the rules
Yes, and from the information I have, H3 and J3 (among others) are both considered phone. H3 is full carrier SSB, so there's no lower limit to the audio frequency allowed, only a 3 kHz upper limit. What's not defined in Part 97 is what the 3 kHz means - 3 dB down from peak, 6 dB down? And no slope information for the roll-off beyond that. I'm glad the rules aren't more restrictive. I have been on the air long enough to remember when there were serious arguments for banishing all phone from the HF bands as a huge spectrum-waster. Compared to CW and even most other digital modes, it certainly is! More recently was a movement to stop a huge abuse of the HF bands that effectively eliminates almost all routine communications for long periods of time, even occasionally seriously interfering with real emergency communications. Those Hams were petitioning for banning contesting on the Ham bands - at least the HF bands. And they had a point. Of course what happened was that a compromise was reached in which some HF bands are off limits to all contests. Everyone has been accommodated. Hopefully that's a model we'll continue to use when coming to agreements about other forms of operation. Ron AC7AC -Original Message- Not according to the FCC Dave AB7E Brett Howard wrote: Read my message again. ESSB is a mode! __ 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 possible subject for firmware update.
Elliott Lawrence-3 wrote: I use a Steppir antenna here. No problem tracking the frequency as shown on VFO A. When I go split and therefore transmit on VFO B the antenna frequency is not updated for operation in a different band segment. It still tracks VFO A. On my previous radio, FT1000D, the freqency information followed the VFO selected for transmission. Not a big deal since the antenna is reasonly flat even when not optimized for a different part of the band. Surely that is an issue with the software that is tracking the frequency(ies) you are using? The K3 provides all the information software needs to know if it is working split and what the VFO B frequency is, but the software still needs to ask for that information and use it. - 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/Need-K3-firmware-testers-extended-AF-bass-live-memory-recall-flat-data-mode-EQ-etc-tp3731021p3731996.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
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. - 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-tp3730340p3732084.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?
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
Re: [Elecraft] [K3] K3 FSK power transients
Joe Subich, W4TV-4 wrote: With the 8 pole filter I see 2 watts difference on the N8LP LP-100 wattmeter. However, in AFSK A or DATA A modes for PSK I see as much as 15 watts (0.7 dB) difference (maximum to minimum) as the tone frequency varies from 200 Hz to 2800 Hz in DATA A (FC=1500 Hz) or 1000 Hz to 3500 Hz in AFSK (FC=2210 Hz). If the fall-off is only at the edges I wouldn't be unhappy with this. Last time I checked, a few months ago when the power control in data mode was finally made to work properly, I found that the power output was pretty well flat between about 400 to 2400Hz, once the audio level has been adjusted for 4 bars of ALC as instructed. Personally I wouldn't operate with a sound card program outside of that range, anyway. If you are transmitting some sort of wide FSK mode then I suppose you will see differences because the ALC can only keep the power level average. I guess this is where having the option to set TX EQ in data mode could come in useful, though whether the adjustment currently permitted is fine enough to cancel out filter ripple is another matter. I wouldn't have thought any other radio would do any better, though. With many radios you have to keep the drive below the ALC threshold so you are completely at the mercy of the sound card frequency response and the TX filter ripple. - 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-FSK-power-transients-tp3712691p3732143.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]
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
Re: [Elecraft] ESSB and the rules
Ron D'Eau Claire wrote: I have been on the air long enough to remember when there were serious arguments for banishing all phone from the HF bands as a huge spectrum-waster. Compared to CW and even most other digital modes, it certainly is! Though if you want a fair comparison, I suppose you should multiply the bandwidth used by the time factor needed to convey the same information. There aren't many CW ops who can send as fast as they can speak. :) - 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/ESSB-and-the-rules-tp3729653p3732178.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] ESSB and the rules
I have been on the air long enough to remember when there were serious arguments for banishing all phone from the HF bands as a huge spectrum-waster. Compared to CW and even most other digital modes, it certainly is! Though if you want a fair comparison, I suppose you should multiply the bandwidth used by the time factor needed to convey the same information. There aren't many CW ops who can send as fast as they can speak. :) Spectral power density is a good way to express how to deal with this. It is how CDMA cellphones use very low power, but lots of bandwidth, versus TDMA (GSM) which use high peak power, but less bandwidth per call. For a given cell band, CDMA can handle more calls. SO for a given Amateur band... Of course, it quickly gets very complex :-) 73, Lyle KK7P __ 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] K2 Choppy keying
Just been playing with a K2 which was sent if for repair of the QRP PA. The K2 seems to have a funny keying characteristic. On cw the keying characteristic seems quite poor at high speeds. I notice too that if one Just a random through but maybe check the T-R delay in the menus... I think mine is set to 0.02 (default?) and does well. How high a speed is high speed? __ 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] K2 scratchy volume control
Paul Don, I got the same problem despite I have applied the new AF wiring. Especially the RF pot problem appeared last year all of a sudden. Mechanically, the pot does not sound too bad. Elecraft, pse, what is the explanation for this? Do we really need to replace the AF/RF pots? 73 Gernot DF5RF K2#2329 __ 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] ESSB and the rules [ END of thread]
Folks, Let's end this thread discussing ESSB and the FCC rules. 73, Eric Elecraft List Moderator __ 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] OT gigatronics
anybody know where i could get a oper manual for a gigatronics 6060B rf gen. thanks, ron __ 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] K2 scratchy volume control
Gernot, I repair many K2s, both as an independent and as an Elecraft hourly employee, so I believe I am qualified to speak to your comment. I cannot suggest that this is an official Elecraft response because I do not have Eric or Wayne's permission on this particular situation, and I do not have any data on the life expectancy for these controls. .Most of the AF Gain pots are still good, although a scratchy one is encountered occasionally. Rarely do I see that in an RF Gain control, but then many operators (likely most) just leave the RF Gain at max and depend on the AGC, so it does not get as much use as the AF Gain control. If the gain control has been used a lot, the track can wear out, and replacement is the only certain cure that I know. So from that perspective, the pots are of adequate quality for the average K2. Of the K2s that I repair, those that show obvious signs of greater than average use (buttons worn, knobs show wear, etc) are the most likely ones to have a bad AF Gain control. With the unmodified AF Gain circuit in K2s below SN 3000, there was a bit of current drawn through the AF Gain control which accelerated the chance that the control would become scratchy, so if the AF Gain control is already scratchy, adding the AF Gain alternate wiring mod will not cure that condition. The wiring mod is included on the boards for all K2s above SN 3000 (now greater than 1/2 the K2s out there). If you use the RF Gain control frequently it is possible that it may be worn too. You did not say if you use the RF Gain frequently, or if you operate the K2 more hours than the average ham. 73, Don W3FPR DF5RF wrote: Paul Don, I got the same problem despite I have applied the new AF wiring. Especially the RF pot problem appeared last year all of a sudden. Mechanically, the pot does not sound too bad. Elecraft, pse, what is the explanation for this? Do we really need to replace the AF/RF pots? 73 Gernot DF5RF K2#2329 __ 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] Set of K2 kits for sale
Unassembled kits from 2005. They're out of warranty, of course. K2 #4685 K160RX K60XV KAT100-1 KDSP2 KNB2 KPA100 KSB2 FDIMP $1876 if bought new today. For sale as a single package. $1500 gets them shipped insured UPS to you. Please reply off list. James D. Leslie 9360 Lost Forest Dr. Richmond, VA 23237 les...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Mods and A P3 question.
Did the 3 mods this weekend. Or should say watched a steady handed friend with good eyes do the mods. All went well. For planning purposes, does any body have the dimensions? Got to make sure I can make room for it!! de K2GN/Larry K3 - S/N 3278 __ 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] Set of K2 kits for sale
Dave, Would you sell the KPA100 separately, and if so, for how much? 73 de dave ab9ca/4 Dave Leslie wrote: Unassembled kits from 2005. They're out of warranty, of course. K2 #4685 K160RX K60XV KAT100-1 KDSP2 KNB2 KPA100 KSB2 FDIMP $1876 if bought new today. For sale as a single package. $1500 gets them shipped insured UPS to you. Please reply off list. James D. Leslie 9360 Lost Forest Dr. Richmond, VA 23237 les...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ 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 for sale, new lower price!
I have for sale K2 #6673 with the kpa100 and kat100 in the separate ec2 case, ksb2, k160rx, knb2, kat2, fdimp and kio2, about $2000.00 total cost. It works like a dream, is like new, with extra parts, manuals, etc. Asking $1000.00 plus shipping. Will sell separate the k2 and the kpa100/kat100 in the ec2 case. Brett N2DTS __ 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 Operation With ACOM 2S1 Commutator
Is anyone successfully using the ACOM 2S1 Commutator with a pair of K3s and single amplifier? I am trying to operate two K3s on a single band/mode as a multi-multi setup. I have taken TX inhibit from the accessory connector but trying to figure out how to fully mute the non transmitting K3 when operating both radios on the same band/mode. Please reply off line if you have a wiring diagram. Oliver, W6NV __ 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] Elecraft CW Net Report for September 27th 28th, 2009
Good Evening, This report is a day late but extenuating circumstances intervened. However, conditions were good yesterday; especially on forty meters where I was able to work many locations. Thank you for the continuing efforts of Steve to make contact from Georgia. It has been a long time since we have heard him. I know he has been monitoring from his many emails but conditions did not allow us contact. Forty meters elicited four new operators to ECN. That is always fun. Only one of the contacts was hampered by weak signals and high QRN. When KW6AR is able to work the net again I hope to get all his information. Where yesterday had some warm temperatures today it was chilly. Even though the sun was shining for the first few hours of my day it was cold enough to force me to build a fire. Luckily there is plenty of wood nearby even though I have not collected very much of the wood I have split this year. It is burning nicely while the rain falls. It is supposed to rain for the next week if the weatherman is correct. I did get a report of chilly, cloudy skies from Rick. He always sends his weather down here with the very rare exception of a bit from Hawaii or California. My road has become quite busy. Even after bedtime the trucks were driving by shining for deer. If they are wise they will aim their hooves toward to reprod and bed down. There is plenty to eat, water nearby, and a good place to sleep peacefully. On to the lists = On 14050.5 kHz at 2300z: WB3AAL - Ron - PA - K2 - 1392 NO8V - John - MI - K3 - 820QNI # 90!!! WB5BKL - Nick - TX - K3 - 231 AB9V - Mike - IN - K3 - 398 K4JPN - Steve - GA - K2 - 1422 N0AR - Scott - MN - K2 - 4866** QNI # 205 ** W8OV - Dave - TX - K3 - 3139 W6ZH - Pete - CA - K2 - 5138 K8DD - Hank - MI - K3 - 579 On 7045.5 kHz at 0100z: W6ZH - Pete - CA - K2 - 5138 NO8V - John - MI - K3 - 820 K8DD - Hank - MI - K3 - 579QNI # 5! W8OV - Dave - TX - K3 - 3139 QNI # 10! K6DGW - Fred - CA - K3 - 642 K8AZT - John - MI - K3 - 1693 K9ZTV - Kent - MO - K3 - 21 AB9V - Mike - IN - K3 - 398 WB5BKL - Nick - TX - K3 - 231 KL2AX - John - AK - future KX1 operator N0AR - Scott - MN - K2 - 4866 NU4I - Ken - VA - K3 - 1292 KW6AR - Percy - CA KL7CW - Rick - AK - KX1 - 798 Hopefully the information listed above is OK. If it is not please email me with the corrections. Now to get back to my regular schedule instead of letting these reports sit for a day. That is never good! My memory loses the feel for what happened and the conditions on each net. I do remember after the second net enjoying the last of the daylight and the quiet of the trees. Forty meters has a lot of QRN and it kept building over the time period. By the end it was tough to work the weaker stations. I may have missed one under the noise but I cannot tell. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ 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] SDR-IQ
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
