[Elecraft] Fwd: Re: Curious -- why is KXFL3 roofing filter an option on KX3 ?
...I have a great problem with AM-Breaktrough and I have to switch to 8kHz ZF-Shift. So most of my operation time my KXFL3 is not in use :-( 73 de Uwe, DL4AC -- Weitergeleitete Nachricht -- Von: "Rick Tavan N6XI" Datum: 12.04.2014 01:04 Betreff: Re: [Elecraft] Curious -- why is KXFL3 roofing filter an option on KX3 ? An: "Phil Hystad" Cc: "Elecraft List" If all of your operating is casual chatting, on uncrowded bands, with poor antennas, then the KXFL3 won't do much at all for you. Its primary function is to prevent DSP overload from very strong, adjacent signals and you won't experience that much if at all. If much of your operating is serious DXing or contesting on crowded bands with good antennas and active nearby neighbor stations, you will often encounter those strong, close-in signals and the KXFL3 will help a lot. Somewhere between those extremes of strength and crowding is the threshold. I got the filter even though it is often unnecessary. /Rick N6XI On Thu, Apr 10, 2014 at 7:56 AM, Phil Hystad wrote: > I have a curiosity question. Why is the KXFL3 roofing filter an option on > the KX3? I mean, why is it not a built-in feature of the KX3? First, I > already own a KX3 with the KXFL3 filter so I am not asking this in order to > choose to buy or not. Caveat: I am also a neophyte (philistine, ignorant, > or troglodyte) in this sort of radio technology and still in learner mode. > > But, it seems to me that the KXFL3 roofing filter is almost required with > a radio as nice as the KX3. Without it, as I understand the function, any > crowded band interval like a pileup or close-in CW signals and such would > render a KX3 (without the roofing filter) with less than the usual Elecraft > stellar RX performance. > > My guess, and this is only a wild guess, is that maybe the option leads > this space open to future improved roofing filters? Or, maybe even leave > it open to a 3rd party market supplied filter (although, I think this > filter is particularly different from other typical 3rd party filters). > > 73, phil, K7PEH > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rta...@gmail.com > -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to uwe.dl...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [OT] [OT] [OT] K2a
Having noticed the recent semiannual K4 speculation I wanted to offer speculation in a different direction. The K2 was originally offered as a true kit that, upon completion, provided a radio capable of both home use and trail use. The trail/remote and home use capabilities have been supplanted by the other radios in the Elecraft stable. The only really unique feature of the K2 is that it is a true kit; that said, it is a bit behind the curve in tech plus it is a major PITB to "align". I would like to see Elecraft revisit the K2 (well, not exactly): 01) Keep it a kit as much as possible. So maybe RF and AF sections could be kits (at least partially). 02) Fully assembled as an option. 03) Make the "middle" a high performance SDR; factory assembled and aligned. 04) 6 KHz band pass filter in the first IF with the DSP doing the remaining filtering functions. 05) Include a 12 volt to (say) 60 volt conversion to power a "high voltage" RF section. 06) 100 watts output. 07) No FM but add 6 meters. 08) Include Digital Voice as a mode. Pick one of the Open Source implementations. Make it an "App"; Elecraft would maintain the latest source code and latest "compiled" App; anyone who wished could modify and install their own version; might be an area where Amateurs could contribute something meaningful. 09) Competent single receiver (with RIT) but not necessarily (in Japanese radio jargon) "Competition Grade". 10) Very competent transmit (with XIT): no splatter, no clicks, no noise. 11) Put it all inside a "big" box in the style of the best looking piece of Ham Radio gear ever designed: the Collins 75A4. 12) Real "Collins" style knobs , real "bat handle" toggle switches. 13) Only a few radio functions need constant, easy access, tie those to the big knobs and toggle switches. 14) Note the switches and controls would only tell a DSP or MCU to take some action. I'm not talking multi-pole, multi-gang rotary switches. 15) Preassembled wire bundles to attach the front panel controls and switches to the main unit (with quick disconnect to allow easy removal). 16) Add a 5-inch color touch screen display (like my Garmin GPS) in the middle of the front panel with a nice size, high inertia tuning knob for freq control. 17) Put the ancillary functions on the (multi-page) touch screen. 18) The touch screen pages should be tab accessible; with user definable pages. 19) Embed this all inside the "75A4 Cabinet": nice size box, mostly air inside but with room to add additional features (maybe even a decent speaker). 20) This is not meant to be a DXpedition, mountaintop, contest box; just a desktop system that you could turn on with a (toggle) switch, select your band with a rotary switch, select your mode with a rotary switch, touch the tab on the touch screen to verify your audio/keyer/data settings then kick back and operate. Toggle switches for AGC On/Off, AGC Fast/Slow, Noise Blanker On/Off, Noise Reduction On/Off, rotary controls for receive bandpass width and shift, so on. Touch screen pages to set/adjust the characteristics of the Noise Reduction, Noise Blanker, AGC, etc. Switched LCD meter to provide S-meter, power, audio level, whatever. OK, OK, OK.I know it can never happen: 1) No one would want one. 2) It would be too big. 3) It wouldn't be big enough. 4) Elecraft doesn't have the financial resources to develop such a device. 5) Purchase price would be too high. 6) Besides it would take engineering talent away from the development of the K4, the 1500 watt solid state amp, the VHF to near-infrared transceiver, the Elecraft EPad, etc. But, it would be a really neat rig: very "Retro" look with a high tech heart. Mike W5FTD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 and panadapter(s)
On Sat, 12 Apr 2014 01:12:29 + Robert G Strickland wrote: > I'd like to hear from anyone who has worked out a panadapter function > with the K2. Please respond off list. Thanks much And copy to list for the rest of us! Thanks, Tom KG7CFC -- The foolish man seeks happiness in the distance. The wise man grows it under his feet. - James Oppenheim ^^ --... ...-- / -.- --. --... -.-. ..-. -.-. Tom Taylor KG7CFC openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default, KDE 4.11.2, AMD Phenom X4 955, GeForce GTX 550 Ti (Nvidia 325.15) 16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD FF 27.0, claws-mail 3.9.2 registered linux user 263467 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] First contact today was A35V on KX3 picnic table portable
Got the KX3 about a week ago. First contact was today, portable, I was sitting next to the bay on a picnic table (salt water, here on the Navy base in Yokosuka Japan) with a 17ft replacement tent pole I ordered on Amazon for $38 as my 20 to 10 mtr vertical. The new "vertical" is tie wrapped to a 3 ft high chain link fence. Two 17 ft radials are laid out. 50 ohm coax as the feed, about six feet long straight to the KX3. Built in auto tuner tunes it easily to a 1:1 match on 20 to 10 meters. It will load on 40 but the final swr is high and did not try 80 or 160 or even 6 mtrs yet. We will leave the area and return back to the states in JUL so not going crazy with antennas here.and all of my operations here will be picnic portable until we leave. Worked A35V on 12 meters ssb, I was xmitting 4 watts into the tent pole vertical. Took a few calls but got him with my JA call of JH1JCM/QRP. My Eneloop batteries were straight out of the packaginghad not even did a charge yet but the KX3 indicated the voltage was 8.7 so I figured I would give it a try. They worked. There are a lot of menu driven options with this rig and overall I prefer a simpler rig such as the Argo VI which I almost bought but hopefully over the next few weeks of very casual operating I will get to know the knob functions better. Impressed with the build quality and the display is awesome. The CMP seems to have a major positive impact on SSB. The SSB monitor sounds weird thoughwhen I engage the SSB monitor circuit it sounds like it is being processed digitally and has that "in the cave" dsp sound to itdo not like the way the monitor sounds so I must be doing something wrong. Still slowly figuring this rig out. Eneloops are charging now off of my Astron SS30. Expect to have full charge in 10 hours. Will see how long they last before needing charging again. Bought the optional paddle but have not hooked it up yet. More to follow. LCDR Lane Zeitler Forward Deployed US Naval Hospital Yokosuka Japan JH1JCM Ku7i __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rotten Signals
On 4/11/2014 3:43 PM, F5vjc wrote: > Well I believe it is better to 'close talk' most microphones in a > typical Ham shack environment, 2 inches typically. Not if you are shouting into it. For PSK which I use my K2 for, there is a nice monitoring program called PSKmeter that gives a scope-like presentation of the waveform. It operates in real time - in a window on the computer screen - and makes it very easy to see if there's too much ALC or audio input. -- -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Just got shipment alert!
On 4/11/2014 6:36 PM, David Cole wrote: My K3 arrives on the 15th. Can't wait! Go slow David, do the inventory. Likelihood of missing things is very low but the big advantage it gives you is knowledge of all the parts. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
None yet. Back on February 24th Wayne mentioned here on the forum that it was being worked on. That posting pasted below: Hang in there a little longer. 73, Bob K2TK ex KN2TKR (1956) & K2TKR Yes, we're definitely working on a way to move the crystal frequency. (This applies to both the KAT500 and the KXPA100.) I'll post again once we have modification kits ready. 73, Wayne N6KR On 4/11/2014 11:26 AM, Stan Gibbs, KR7C wrote: Is there a hardware mod that could be made that would shift the oscillator out of the 10m band? That would eliminate the problem altogether, allow the firmware to be simplified and greatly improve the communications reliability. - 73, Stan - KR7C -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Just got shipment alert!
My K3 arrives on the 15th. Can't wait! -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 and panadapter(s)
I'd like to hear from anyone who has worked out a panadapter function with the K2. Please respond off list. Thanks much -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rotten Signals
Folks - This thread was closed yesterday in the interest of reducing list overload. Eric elecraft.com On 4/11/2014 2:10 PM, Phil Kane wrote: On 4/9/2014 11:26 PM, F5vjc wrote: This amazingly seems to be of no consequence to the majority as I very rarely hear bad audio or CW clicks being brought to the attention of the offending op. Just this week I had to admonish one of our net participants who fancies himself as an electronic expert to back off about a foot from his microphone so that his speech would be intelligible. His remedy was to turn his compression down to zero. It was a good start. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
The XG3 is perfect for this calibration. Freq is not critical as ling as its close to 50. Our XG50 is actually a little below 50 Mhz. (I think it used the ref oscillator module from the K3.) Eric elecraft.com On 4/11/2014 1:39 PM, Edward R Cole wrote: It was suggested I do the Temp Compensation Procedure. Unfortunately I do not have a stable 50-MHz signal source. However I did run the Reference Frequency Calibration using my XG3. Call this "Part Two": I sampled the RF output of the XG3 with my counter and also input that to the KX3 for the Calib. This required running at 0 dBm to inject strong enough signal for the counter (approx -3 dBm). I turned on the ATT for the KX3 to keep input from overdriving. Got about S9 signal level. I got it adjusted to within about 2-Hz. The XG3 drifts approx +/- 2 Hz so difficult to set the Ref*Frequency using it. But that eliminated most of the 38 Hz offset I saw last night. Running the Tx at 5w afterward drift was in the range of 0 to +7 Hz for a 50-second key down run. The drift is not steady in one direction so average error is probably in the neighborhood of +5 Hz with 5-Hz uncertainty in the measurement. Crude but gives a ballpark idea what to expect. Today's measurements were all with new heat sink installed. Temp Comp. probably would lower these numbers a bit. I might try running my K3 as signal source for Temp Comp. if it holds more stable then the XG3 at 50-MHz. I am using the EXREF so it may be better? 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to elist_c...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Using K3 remote with Steppir antenna
I would appreciate it if someone who is using their K3 remote with the Remote Rig boxes and their Steppir 3el would contact me offline.I have a couple of problems I need help with.Qrz Email is good. Thanks, George wb5xx __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PR6 Hookup
HI Dwight, You hook it to Bypass In. In order to use the receive antenna, the PR6 needs to be turned off. If you are using DIGOUT1 to control the PR6, it may not be turning off when DIGOUT1 is off is you have the KAT500 and KPA500 and are using the KPAK3AUX cables. Cheers and 73, Fred KE7X "The Elecraft K3: Design, Configuration and Operation 2nd ed" "The Elecraft KX3 - Going for the summit" www.ke7x.com or www.lulu.com KPA500 and KAT500 Quick Set Up Guide http://www.ke7x.com/home/k-line-introduction-and-set-up-guide (Coming soon: "The Elecraft KPA500 and KAT500 - the K-Line Dream Station") > -Original Message- > From: elecraft-boun...@mailman.qth.net [mailto:elecraft- > boun...@mailman.qth.net] On Behalf Of DGB > Sent: Friday, April 11, 2014 3:21 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] PR6 Hookup > > when hooking up the PR6, which do I connect my 160m rcv antenna to, the > bypass out or in? > > tnx 73 Dwight NS9I > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to fc...@ece.montana.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Curious -- why is KXFL3 roofing filter an option on KX3 ?
If all of your operating is casual chatting, on uncrowded bands, with poor antennas, then the KXFL3 won't do much at all for you. Its primary function is to prevent DSP overload from very strong, adjacent signals and you won't experience that much if at all. If much of your operating is serious DXing or contesting on crowded bands with good antennas and active nearby neighbor stations, you will often encounter those strong, close-in signals and the KXFL3 will help a lot. Somewhere between those extremes of strength and crowding is the threshold. I got the filter even though it is often unnecessary. /Rick N6XI On Thu, Apr 10, 2014 at 7:56 AM, Phil Hystad wrote: > I have a curiosity question. Why is the KXFL3 roofing filter an option on > the KX3? I mean, why is it not a built-in feature of the KX3? First, I > already own a KX3 with the KXFL3 filter so I am not asking this in order to > choose to buy or not. Caveat: I am also a neophyte (philistine, ignorant, > or troglodyte) in this sort of radio technology and still in learner mode. > > But, it seems to me that the KXFL3 roofing filter is almost required with > a radio as nice as the KX3. Without it, as I understand the function, any > crowded band interval like a pileup or close-in CW signals and such would > render a KX3 (without the roofing filter) with less than the usual Elecraft > stellar RX performance. > > My guess, and this is only a wild guess, is that maybe the option leads > this space open to future improved roofing filters? Or, maybe even leave > it open to a 3rd party market supplied filter (although, I think this > filter is particularly different from other typical 3rd party filters). > > 73, phil, K7PEH > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rta...@gmail.com > -- Rick Tavan N6XI Truckee, CA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rotten Signals
Well I believe it is better to 'close talk' most microphones in a typical Ham shack environment, 2 inches typically. Reduces background noise and reverberation. Most of us are not operating in a broadcast studio acoustically dead environment. Of course, adjust Mic gain and Compression to suit, and please, please no HEAVY Bass Eq it's totally wasted communications power and sounds rather NAFF IMHO. And, 3kHz audio BW is Plenty wide for our purposes. Compression is good, used properly. Expert opinions please? 73, F5VJC On 11 April 2014 23:10, Phil Kane wrote: > On 4/9/2014 11:26 PM, F5vjc wrote: > > > This amazingly seems to be of no consequence to the majority as I very > > rarely hear bad audio or CW clicks being brought to the attention of the > > offending op. > > Just this week I had to admonish one of our net participants who fancies > himself as an electronic expert to back off about a foot from his > microphone so that his speech would be intelligible. His remedy was to > turn his compression down to zero. It was a good start. > -- > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to foxfive@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
You are right, you can't use WWV for the temperature compensation data collection procedure itself. However, we are talking about the reference calibration that you must perform after the temperature compensation data collection -- for that, you need a precisely known frequency reference. Ed below said he was using his XG3 for that, but it was drifting around 2Hz or so. I was saying that you can do better than that by zero-beating with WWV, even with Doppler shift error. Note that when I say "zero beat", I don't mean tuning the carrier down to "0Hz" (that topic has been beaten to death, so I won't repeat it here :-) ). 73, Matt VK2RQ > On 12 Apr 2014, at 8:03 am, Oliver Dröse wrote: > > > As you need to do the extend temp procedure at +/- 50 MHz that's no option, > Matt. > > @Ed: > The K3 will work fine as source for the ext. temp. procedure. Just turn it > down to lowest power or use the transverter out port. > > 73, Olli - DH8BQA > > Contest, DX & radio projects: http://www.dh8bqa.de > > > > Am 11.04.2014 23:58, schrieb Matt VK2RQ: >> You are probably better off zero-beating to WWV. You should easily be able >> to get within 500mHz or less. >> >> 73, >> Matt VK2RQ >> >>> On 12 Apr 2014, at 6:39 am, Edward R Cole wrote: >>> >>> It was suggested I do the Temp Compensation Procedure. Unfortunately I do >>> not have a stable 50-MHz signal source. However I did run the Reference >>> Frequency Calibration using my XG3. Call this "Part Two": >>> >>> I sampled the RF output of the XG3 with my counter and also input that to >>> the KX3 for the Calib. This required running at 0 dBm to inject strong >>> enough signal for the counter (approx -3 dBm). I turned on the ATT for the >>> KX3 to keep input from overdriving. Got about S9 signal level. >>> >>> I got it adjusted to within about 2-Hz. The XG3 drifts approx +/- 2 Hz so >>> difficult to set the Ref*Frequency using it. But that eliminated most of >>> the 38 Hz offset I saw last night. Running the Tx at 5w afterward drift >>> was in the range of 0 to +7 Hz for a 50-second key down run. The drift is >>> not steady in one direction so average error is probably in the >>> neighborhood of +5 Hz with 5-Hz uncertainty in the measurement. Crude but >>> gives a ballpark idea what to expect. >>> >>> Today's measurements were all with new heat sink installed. Temp Comp. >>> probably would lower these numbers a bit. >>> >>> I might try running my K3 as signal source for Temp Comp. if it holds more >>> stable then the XG3 at 50-MHz. I am using the EXREF so it may be better? >>> >>> 73, Ed - KL7UW >>> http://www.kl7uw.com >>>"Kits made by KL7UW" >>> Dubus Mag business: >>>dubus...@gmail.com >>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to matt.vk...@gmail.com >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dro...@necg.de >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
As you need to do the extend temp procedure at +/- 50 MHz that's no option, Matt. @Ed: The K3 will work fine as source for the ext. temp. procedure. Just turn it down to lowest power or use the transverter out port. 73, Olli - DH8BQA Contest, DX & radio projects: http://www.dh8bqa.de Am 11.04.2014 23:58, schrieb Matt VK2RQ: You are probably better off zero-beating to WWV. You should easily be able to get within 500mHz or less. 73, Matt VK2RQ On 12 Apr 2014, at 6:39 am, Edward R Cole wrote: It was suggested I do the Temp Compensation Procedure. Unfortunately I do not have a stable 50-MHz signal source. However I did run the Reference Frequency Calibration using my XG3. Call this "Part Two": I sampled the RF output of the XG3 with my counter and also input that to the KX3 for the Calib. This required running at 0 dBm to inject strong enough signal for the counter (approx -3 dBm). I turned on the ATT for the KX3 to keep input from overdriving. Got about S9 signal level. I got it adjusted to within about 2-Hz. The XG3 drifts approx +/- 2 Hz so difficult to set the Ref*Frequency using it. But that eliminated most of the 38 Hz offset I saw last night. Running the Tx at 5w afterward drift was in the range of 0 to +7 Hz for a 50-second key down run. The drift is not steady in one direction so average error is probably in the neighborhood of +5 Hz with 5-Hz uncertainty in the measurement. Crude but gives a ballpark idea what to expect. Today's measurements were all with new heat sink installed. Temp Comp. probably would lower these numbers a bit. I might try running my K3 as signal source for Temp Comp. if it holds more stable then the XG3 at 50-MHz. I am using the EXREF so it may be better? 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to dro...@necg.de __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
You are probably better off zero-beating to WWV. You should easily be able to get within 500mHz or less. 73, Matt VK2RQ > On 12 Apr 2014, at 6:39 am, Edward R Cole wrote: > > It was suggested I do the Temp Compensation Procedure. Unfortunately I do > not have a stable 50-MHz signal source. However I did run the Reference > Frequency Calibration using my XG3. Call this "Part Two": > > I sampled the RF output of the XG3 with my counter and also input that to the > KX3 for the Calib. This required running at 0 dBm to inject strong enough > signal for the counter (approx -3 dBm). I turned on the ATT for the KX3 to > keep input from overdriving. Got about S9 signal level. > > I got it adjusted to within about 2-Hz. The XG3 drifts approx +/- 2 Hz so > difficult to set the Ref*Frequency using it. But that eliminated most of the > 38 Hz offset I saw last night. Running the Tx at 5w afterward drift was in > the range of 0 to +7 Hz for a 50-second key down run. The drift is not > steady in one direction so average error is probably in the neighborhood of > +5 Hz with 5-Hz uncertainty in the measurement. Crude but gives a ballpark > idea what to expect. > > Today's measurements were all with new heat sink installed. Temp Comp. > probably would lower these numbers a bit. > > I might try running my K3 as signal source for Temp Comp. if it holds more > stable then the XG3 at 50-MHz. I am using the EXREF so it may be better? > > 73, Ed - KL7UW > http://www.kl7uw.com >"Kits made by KL7UW" > Dubus Mag business: >dubus...@gmail.com > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to matt.vk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
Thanks a million, Eric! 73, Martin, OK1RR Dne 11.4.2014 21:26, Eric Swartz - WA6HHQ, Elecraft napsal(a): IT takes us a little longer to get the Mac and Linux versions out after the Windows utility is fully tested. Eric elecraft.com On 4/11/2014 11:18 AM, Martin Kratoska wrote: Windows only, grrr. 73, Martin, OK1RR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to elist_c...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] PR6 Hookup
when hooking up the PR6, which do I connect my 160m rcv antenna to, the bypass out or in? tnx 73 Dwight NS9I __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rotten Signals
On 4/9/2014 11:26 PM, F5vjc wrote: > This amazingly seems to be of no consequence to the majority as I very > rarely hear bad audio or CW clicks being brought to the attention of the > offending op. Just this week I had to admonish one of our net participants who fancies himself as an electronic expert to back off about a foot from his microphone so that his speech would be intelligible. His remedy was to turn his compression down to zero. It was a good start. -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
On Fri, Apr 11, 2014 at 4:55 PM, Bruce Beford wrote: > > It was suggested I do the Temp Compensation Procedure. Unfortunately > > I do not have a stable 50-MHz signal source. > > Ed, > I did mine using the 5th harmonic from my Trimble Thunderbolt GPSDO. I > think > I used about 60dB of attentuation between the oscillator and the rig, I > don't recall exactly. If you have a precision 10 MHz reference (and I > believe you do), you could use that similarly. > > 73, > Bruce N1RX > > I did the same without any attenuation, and both kx3s survived :). -- Phil kj6pon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
> It was suggested I do the Temp Compensation Procedure. Unfortunately > I do not have a stable 50-MHz signal source. Ed, I did mine using the 5th harmonic from my Trimble Thunderbolt GPSDO. I think I used about 60dB of attentuation between the oscillator and the rig, I don't recall exactly. If you have a precision 10 MHz reference (and I believe you do), you could use that similarly. 73, Bruce N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3: thermal frequency drift
It was suggested I do the Temp Compensation Procedure. Unfortunately I do not have a stable 50-MHz signal source. However I did run the Reference Frequency Calibration using my XG3. Call this "Part Two": I sampled the RF output of the XG3 with my counter and also input that to the KX3 for the Calib. This required running at 0 dBm to inject strong enough signal for the counter (approx -3 dBm). I turned on the ATT for the KX3 to keep input from overdriving. Got about S9 signal level. I got it adjusted to within about 2-Hz. The XG3 drifts approx +/- 2 Hz so difficult to set the Ref*Frequency using it. But that eliminated most of the 38 Hz offset I saw last night. Running the Tx at 5w afterward drift was in the range of 0 to +7 Hz for a 50-second key down run. The drift is not steady in one direction so average error is probably in the neighborhood of +5 Hz with 5-Hz uncertainty in the measurement. Crude but gives a ballpark idea what to expect. Today's measurements were all with new heat sink installed. Temp Comp. probably would lower these numbers a bit. I might try running my K3 as signal source for Temp Comp. if it holds more stable then the XG3 at 50-MHz. I am using the EXREF so it may be better? 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Curious -- why is KXFL3 roofing filter an option on KX3 ?
Hi George, This is a precision matched phase I-Q filter. Its a key component of the KX3s excellent performance. No different than if you were ordering a precision crystal as we use in the K3. These parts are matched and selected here. We can supply matched sets if they ever are needed. We have yet to see one fail. (The chance of failure of these caps is miniscule.) 73, Eric elecraft.com On 4/11/2014 9:26 AM, george fritkin wrote: Matching 0.1% capacitors? What kind of a design is this that requires such tolerances ? This make maintenance almost impossible. George, W6GF On Thursday, April 10, 2014 9:31 PM, Wayne Burdick wrote: Hi Phil, The roofing filter module (KXFL3) is expensive for us to manufacture because of the extremely tight tolerances on the capacitors (0.1% in some cases). They have to be matched by hand. We didn't want to pass this cost on to all KX3 users, since many of them don't require the roofing filters. Even without them, the KX3's receiver performance would fall into the top 6 or so radios as measured by Sherwood Engineering (http://www.sherweng.com/table.html). 73, Wayne N6KR On Apr 10, 2014, at 7:56 AM, Phil Hystad wrote: I have a curiosity question. Why is the KXFL3 roofing filter an option on the KX3? I mean, why is it not a built-in feature of the KX3? First, I already own a KX3 with the KXFL3 filter so I am not asking this in order to choose to buy or not. Caveat: I am also a neophyte (philistine, ignorant, or troglodyte) in this sort of radio technology and still in learner mode. But, it seems to me that the KXFL3 roofing filter is almost required with a radio as nice as the KX3. Without it, as I understand the function, any crowded band interval like a pileup or close-in CW signals and such would render a KX3 (without the roofing filter) with less than the usual Elecraft stellar RX performance. My guess, and this is only a wild guess, is that maybe the option leads this space open to future improved roofing filters? Or, maybe even leave it open to a 3rd party market supplied filter (although, I think this filter is particularly different from other typical 3rd party filters). 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html Message delivered to georgefrit...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to elist_c...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
IT takes us a little longer to get the Mac and Linux versions out after the Windows utility is fully tested. Eric elecraft.com On 4/11/2014 11:18 AM, Martin Kratoska wrote: Windows only, grrr. 73, Martin, OK1RR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to elist_c...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] test message only
email trouble, testing settings. Bruce N1RX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
Windows only, grrr. 73, Martin, OK1RR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Anti Static Mats
http://en.wikipedia.org/wiki/Antistatic_agent - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/Anti-Static-Mats-tp7586727p7587021.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Curious -- why is KXFL3 roofing filter an option on KX3 ?
Hi George, Tight matching is required in the roofing filters because of their impact on the I and Q receive channels. This is not unique to Elecraft's application. By matching the gain and phase within the channels, we suppress image responses in hardware, simplifying the task of the DSP after the A-to-D converter. Fortunately the capacitors come on SMD reels and have fairly tight tolerance within batches. So we sort them the same way we do crystals. But yes, it would be difficult for a customer to repair their own KXFL3 board, should it involve the tight-tolerance parts. On the other hand, the board is extremely unlikely to fail, and it's a small removable module that can easily be replaced if necessary. I don't know of any cases of this yet. 73, Wayne N6KR On Apr 11, 2014, at 9:26 AM, george fritkin wrote: > Matching 0.1% capacitors? What kind of a design is this that requires such > tolerances ? This make maintenance almost impossible. > > George, W6GF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Curious -- why is KXFL3 roofing filter an option on KX3 ?
Matching 0.1% capacitors? What kind of a design is this that requires such tolerances ? This make maintenance almost impossible. George, W6GF On Thursday, April 10, 2014 9:31 PM, Wayne Burdick wrote: Hi Phil, The roofing filter module (KXFL3) is expensive for us to manufacture because of the extremely tight tolerances on the capacitors (0.1% in some cases). They have to be matched by hand. We didn't want to pass this cost on to all KX3 users, since many of them don't require the roofing filters. Even without them, the KX3's receiver performance would fall into the top 6 or so radios as measured by Sherwood Engineering (http://www.sherweng.com/table.html). 73, Wayne N6KR On Apr 10, 2014, at 7:56 AM, Phil Hystad wrote: > I have a curiosity question. Why is the KXFL3 roofing filter an option on > the KX3? I mean, why is it not a built-in feature of the KX3? First, I > already own a KX3 with the KXFL3 filter so I am not asking this in order to > choose to buy or not. Caveat: I am also a neophyte (philistine, ignorant, > or troglodyte) in this sort of radio technology and still in learner mode. > > But, it seems to me that the KXFL3 roofing filter is almost required with a > radio as nice as the KX3. Without it, as I understand the function, any > crowded band interval like a pileup or close-in CW signals and such would > render a KX3 (without the roofing filter) with less than the usual Elecraft > stellar RX performance. > > My guess, and this is only a wild guess, is that maybe the option leads this > space open to future improved roofing filters? Or, maybe even leave it open > to a 3rd party market supplied filter (although, I think this filter is > particularly different from other typical 3rd party filters). > > 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html Message delivered to georgefrit...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
Hi I second the hardware mod. For programs such as Win4k3suite which poll the Kat keeping the sleep mode on introduces unacceptable delays. So instruct people to turn sleep mode off. 73s Tom va2fsq Original message From: "Stan Gibbs, KR7C" Date: 11/04/2014 11:26 (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site Yes, I was typing the commands on the Command Tester tab. I notice from my P3's 28.004 oscillator signal that the oscillator is enabled immediately when the Firmware or Operate tabs are selected. However, the oscillator runs continuously while the Operate tab is selected and turns off after a delay in the case of the Firmware tab. Is there a reason for this difference? Sending firmware to the KAT500 with idle sleep enabled seems to work reliably now, even waiting for the oscillator to time-out first. The Configuration and Command Tester tabs don't enable the oscillator until the user either clicks a configuration button or sends a macro command. In both cases the oscillator stops after a few seconds of idleness, like the Firmware tab. Why not simply enable the oscillator (disable the sleep) after the utility has established communications with the KAT500 on startup, and restore the user's Idle Sleep setting on exit? If users are fiddling with their KAT500 configuration, it doesn't seem like they should be that concerned about the 28.004 signal being present. If they are using the Operate tab to monitor station operation, then the oscillator signal will be present regardless of the Idle Sleep setting. However, this begs the question of other apps accessing the KAT500. IMHO, requiring all of them to send junk commands until they get a reasonable response does not seem like a very reliable strategy. Is there a hardware mod that could be made that would shift the oscillator out of the 10m band? That would eliminate the problem altogether, allow the firmware to be simplified and greatly improve the communications reliability. - 73, Stan - KR7C -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Utility-1-14-4-10-beta-test-version-available-on-our-FTP-site-tp7586987p7587017.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http:/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KAT500 Utility 1.14.4.10 beta test version available on our FTP site
Yes, I was typing the commands on the Command Tester tab. I notice from my P3's 28.004 oscillator signal that the oscillator is enabled immediately when the Firmware or Operate tabs are selected. However, the oscillator runs continuously while the Operate tab is selected and turns off after a delay in the case of the Firmware tab. Is there a reason for this difference? Sending firmware to the KAT500 with idle sleep enabled seems to work reliably now, even waiting for the oscillator to time-out first. The Configuration and Command Tester tabs don't enable the oscillator until the user either clicks a configuration button or sends a macro command. In both cases the oscillator stops after a few seconds of idleness, like the Firmware tab. Why not simply enable the oscillator (disable the sleep) after the utility has established communications with the KAT500 on startup, and restore the user's Idle Sleep setting on exit? If users are fiddling with their KAT500 configuration, it doesn't seem like they should be that concerned about the 28.004 signal being present. If they are using the Operate tab to monitor station operation, then the oscillator signal will be present regardless of the Idle Sleep setting. However, this begs the question of other apps accessing the KAT500. IMHO, requiring all of them to send junk commands until they get a reasonable response does not seem like a very reliable strategy. Is there a hardware mod that could be made that would shift the oscillator out of the 10m band? That would eliminate the problem altogether, allow the firmware to be simplified and greatly improve the communications reliability. - 73, Stan - KR7C -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-Utility-1-14-4-10-beta-test-version-available-on-our-FTP-site-tp7586987p7587017.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Using the K3 ACC socket
Slava, Thank you for posting the breakout connector. I am always soldering or crimping DB-9 and DE-15 connectors for shop projects. Answering your question, I use a Timewave "Navigator" interface here and built the interconnect cable myself, for PTT IN and FSK keying via the K3 ACC connector. I normally use solder type DB-9 and DB-15 connectors as the pins are a bit more stable. I have had some the crimp style connectors back out on me. The ICOM gear uses a 13 pin DIN connector and the pigtail is really short, about 3 inches, so you still need some type of terminal block or you can just solder splice the connection. The one I received was not marked but the wires are color coded. As an aside, the Navigator has been my favorite interface for years and it provides such trouble free installation and application, that I highly recommend it. Provided via 6 USB/Serial ports are CAT, PTT, WinKey (internal to the Navigator), True FSK with compatible radios of which the K3 is one, an Auxilliary RS232 port always handy around the shack, and lastly a port to configure the built in, low noise, USB Codec, FSK parameters etc. It makes all the CAT,PTT, FSK,CW Key, soundcard in and out rear panel connections to the K3 via a single USB connection that is very RFI safe. 73s Jim, W4ATK On 4/11/2014 8:04 AM, Slava Baytalskiy wrote: Hi everyone! I have a question about the ACC socket on the K3. I saw on HamNation that Icom IC-7000 gives you this ACC pigtail cable with all the leads marked, so that you could plug it in and easily pick out the pins you need to use for whatever it is you're doing. Does Elecraft have something like that available? I coulThdn't really find one... Instead, i saw this thing online: http://www.winfordeng.com/products/brksd15hd.php Its a DB15HD breakout connector that gives you screw terminal for each of the pins (K3 does have the regular Female DB15 High Density, 3-row connector, right?). Is that something that you guys are using? This site seems to have a lot of these sort of connectors... Thanks! Slava B W2RMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jim.w4...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [KX3] Follow-up on SWR Instability
Well, it's reassuring to know that the problem is all most certainly associated with data sampling and not a failure of the KX3 - I thought for a while there the unit was going back to Elecraft. For those that asked questions relating to other modes, this problem does not appear to manifest with FM, AM or when using the TUNE function. That being said, as someone that uses my KX3 almost exclusively for portable SOTA SSB activation, accurate reporting of real-time SWR measurements when operating in SSB mode is important. Often I'm tucked behind rocks or under trees trying to stay protected from the elements on a high peak and my antenna might not be in easy sight. Thus, a high SWR reading is usually the first indication that there's a problem with my portable antenna. Typically wind buffeting related, problems are my 20ft fishing pole colaspes or one of the linked dipole connectors touch. So for me a reliable SWR real-time reading is important. Also, I'd had over 500 QSO before seeing this problem. Thus, I believe either a recent firmware or configuration change has caused the issue. Finally, a fix should be fairly simple. If the problem is as described - a stale data issue where SWR is calculated by Reverse Power at time T divided by Forward Power at time T + some delay (which explains why the spiking occurs as the power falls following the end of a syllable), a fix can be effected in several ways i) reverse the order of the power measurements, that is ensure forward power used in the calculation is always measured before the reverse power or ii) do not undertake the calculation if the forward power has dropped below a certain threshold, say 2W. As a portable operator, I for one would certainly like to see a fix. 73's Gary K6YOA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Using the K3 ACC socket
I'm using the Winford boards along with the DIN rails mounted on an aluminum panel by my desk. Very nice way to break out the AUX connector as well as to break out pins from RS232 lines to perform other functions. The little bit of proto room on each board makes adding translator transistors, etc, easy. 73 jim ab3cv On Fri, Apr 11, 2014 at 9:04 AM, Slava Baytalskiy wrote: > Hi everyone! > I have a question about the ACC socket on the K3. > I saw on HamNation that Icom IC-7000 gives you this ACC pigtail cable with > all the leads marked, so that you could plug it in and easily pick out the > pins you need to use for whatever it is you're doing. > Does Elecraft have something like that available? I couldn't really find > one... > Instead, i saw this thing online: > http://www.winfordeng.com/products/brksd15hd.php > Its a DB15HD breakout connector that gives you screw terminal for each of > the pins (K3 does have the regular Female DB15 High Density, 3-row > connector, right?). > Is that something that you guys are using? > > This site seems to have a lot of these sort of connectors... > > Thanks! > Slava B > W2RMS > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to j...@jtmiller.com > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Using the K3 ACC socket
Hi everyone! I have a question about the ACC socket on the K3. I saw on HamNation that Icom IC-7000 gives you this ACC pigtail cable with all the leads marked, so that you could plug it in and easily pick out the pins you need to use for whatever it is you're doing. Does Elecraft have something like that available? I couldn't really find one... Instead, i saw this thing online: http://www.winfordeng.com/products/brksd15hd.php Its a DB15HD breakout connector that gives you screw terminal for each of the pins (K3 does have the regular Female DB15 High Density, 3-row connector, right?). Is that something that you guys are using? This site seems to have a lot of these sort of connectors... Thanks! Slava B W2RMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Use of Heil HC-4/5 and Behringer T-1 Microphone
Has anyone tried using a Heil Gold with the HC5 and HC5 cartridge microphone or a Behringer T-1 Condenser microphone with a KX3 ? Any recommendation for the settings: Mic gain; CMP; TX Equalization. The H3 microphone works great but I want to use my KX3 with my boom mics. Thanks. Ron AF1Q __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Eneloop 2500 mah batteries
Just received my Sanyo eneloop 2500 mAH rechargeable batteries niMH cells..will start the charge cycle when I get home from work tonight. How long should I charge them for...this will be the first charge and I have not used the radio yet at all with these new batteries. The most important thing to avoid is running down one cell to 0 while in use because of differential charge/capacity. But as long as BATMIN is >= 8.4, that's not too likely (1.05 Vpc under load, or one at 0 and 7 at 1.2Vpc). I just got 16 Sanyo Eneloop 2000 mAh cells. I first discharged them individually to 0.9V at 200 mA with a Maha C9000, and obtained 1398 to 1414 mAh. I then did refresh-analyze with 1000 mA charge, 200 mA discharge, and got 1783 to 1855 mAh. They are rated at 1900 mAh minimum, but I hadn't cycled them multiple times yet, and I'm discharging at 200 mA rather than the specified 100 mA rate. The 1783 mAh cell did 1917 mAh on a second cycle. So I conclude that the eneloop 2000 cells I got are good quality and honestly marked about capacity, and when delivered were at about 77% state of charge. So while the recommendation of others to charge for 8h is sound, I'd recommend that you get a Maha C9000 and test your cells :-) That's not so important with new sanyo cells (because every battery I've ever seen from Sanyo has been ok when new), but I've found that cells wear out over the years. Way more detail than is useful, semi-organized: http://www.lexort.com/blog/12v.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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3: thermal frequency drift
I decided to test the frequency stability of the KX3 on 6m under key-down conditions one would see using JT65. Note : I have not performed the Temperature Compensation Procedure so not expecting frequency to hold as close as after doing the procedure. I checked frequency five times with quick transmissions that would not result in heating: 50.125000 was the dial frequency measured with 5w output measured on a Bird 43 meter. 50.124981 -29 Hz error 50.124950 -50 Hz error 50.124960 -40 Hz error 50.124957 -43 Hz error 50.124957 -43 Hz error Next I ran ten sequences where I keyed down for 50-seconds and Rx for 70-seconds to duplicate JT65 transmitting sequences: I got drift downward of 50, 49, 34, 25, 29, 32, 19, 12, 9, and 12 Hz Cold frequency at the start of each sequence varied from 979 to 960 to 994 Hz. It did appear that the radio warmed up over the 20-minutes test and high/low frequency deviation narrowed to about 10-Hz downward drift. At the end the radio case was quite warm and the HI TEMP warning came on! From this I would not recommend running JT65 for extended time with the stock KX3. Next I installed the nice external heat sink being made by Fred Meier, VE7FMN. I installed it in place of the original heat sink plate which took about 20-minutes to install (remove four screws that hold the heat plate and install the new heat sink using supplied allen screw bolts. I decided to purchase the plain aluminum heat sink vs the black power-coat version. I used no heat-sink compound trusting just the metal surface conduction and two 4-40 screws that secure the transmit transistor tabs. Testing at 5w I observed 50.124962 +/- 1 Hz over three 50-second cycles. The heat sink only felt mildly warm (barely detectable). Note: this is without performing the Temperature Calibration Procedure! To say I am impressed it an understatement. I will be interested to see if the initial 38-Hz cold-temp frequency error is minimized by the Temp Compensation procedure. Note: I tested my frequency counter accuracy against my 10-MHz OCXO reference and saw less than a Hz error. How this will affect temperature related drift using the new 2m module remains to be determined as the Tx device on the 2m board probably does not use the existing heat sink interface. I'll post the raw data on my website later on. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Begali Paddles
Thank you for all the responses. I got lots of them. From the responses, All-in-all, both keys are great. I actually got a couple of offers to buy one or the other from a couple of people. 73, Joel - W4JBB On 4/9/14, 5:18 AM, Joel Black wrote: When I upgraded to Extra, I bought myself the Begali Adventure Mono to go with my KX3. Needless to say, I have not been on *any* "Adventures" with my KX3 - yet. Mostly just taking it with me to work and using it during my lunch break. I like the Begali paddle I have. Currently, I have it in the shack on its magnetic base on a piece of steel I took from an old bent up Bencher key. Eventually I'd like to put it with my KX3 *only* instead of moving it back and forth. I'm not a *great* CW operator and I'm definitely *not* QRQ. I putter around 15 - 17WPM but I like nice CW tools. I'm looking to spend no more than $300 and am wondering about the Begali Simplex (which can be had for much less than $300). I have also looked at the N3ZN keys and they are very nice too. I actually had a ZN6 at one point, but sold it. Any thoughts? Please, in the interest of the list, reply directly to my email address. 73, Joel - W4JBB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w4...@charter.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] SWR Reading Instability Follow-up
This really looks like a data latency of a stale data issue, as I discussed in an earlier posting and Don expanded on in his post. To me, this is a minor curiosity, but I am sure that there will be a few who will say their radio is worthless because of it. MarkKE6BB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
