Re: [Elecraft] Wanted: XV-432 transverter
>After many years away from 432MHz, I'm feeling the urge to come back to >the band. > >Does anyone on the list have an XV-432 that is gathering dust? > Thank you, a deal has been done! 73 from Ian GM3SEK __ 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] Future KX3/KX2 accessories?
Actually, even though this discussion is on future KX3/KX2 accessories, I would rather see a separate self-contained all mode, full duplex, 2M/70cm and maybe ever 23 cm radio that puts out more than a few watts. I would say 10 to 50 watts on 2M/70cm and then the maximum which I think is 5 watts on 23 cm (if that too is supported). Also, features for satellite comms too would be nice. And maybe a full 1.5 KW linear amplifier for 2 meters too — OK, just kidding, I am happy with 10 watts. 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 arch...@mail-archive.com
Re: [Elecraft] Future KX3/KX2 accessories?
Paul: Well said! Along with the challenges inherent in having to manage two FT-817s to manage a satellite contact, there is also the relative degree of difficulty in managing the FT-817’s menu settings which can be very confusing to new users. On the other hand, in my opinion Elecraft’s menu management of settings is much easier to understand and implement, enhancing the user experience. In addition, the quality of user support provided by this forum is a significant service as well, enhancing the Elecraft brand. Bottom line is that a KX2 or KX3 style radio capable of 2M/70 cm with full duplex would be an awesome product as the number of amateur satellites in orbit will continue to increase over the next couple of years… Barry WD4ASW > On Mar 30, 2017, at 7:55 AM, Paul Stoetzer wrote: > > A KX2 or KX3 sized full-duplex 2m/70cm radio would be amazing and fill a > big hole in current product availability. > > Lots of satellite ops currently use an "FT-1634" or "FT-1674" (2 FT-817s or > 1 FT-817 & 1 FT-857) for this purpose. > > 73, > > Paul, N8HM > > On Thu, Mar 30, 2017 at 00:00 Ryan Noguchi via Elecraft < > elecraft@mailman.qth.net> wrote: > >>> Here's your chance to get us back into the lab :) What future >> accessories, antennas, etc. would you like to see for the KX-line? >> >> >> >> >> I'd like a 2M and 70CM transverter for working the linear satellites. >> Ideally it would be capable of full-duplex operation with reverse VFO >> tracking, but I'd settle for being able to use it half-duplex. A lot of >> folks use one or two FT-817NDs as the foundation for their portable >> satellite station, and it would be nice to be able to do that with the KX3 >> or KX2. While an internal unit would be more convenient, an external unit >> would offer the possibility of working with both the KX3 and KX2, and a >> larger connector (BNC, N, or SO239) for use with typical beam antennas. >> >> I might buy an iambic or single-lever paddle that connects to the KX3 with >> the paddles pointing to the left. To use the KXPD3 without my wrist >> cramping up, I'd have to turn the KX3 90 degrees to the left. >> >> More programmable function keys for storing macros or menu items would be >> useful on the KX3. Maybe hold PF2 then press any other button to access the >> programmable function stored there. The same approach could be taken with >> the KX2's single PF button. >> >> More DVR memories would be useful, even if they draw from the same memory >> storage, e.g., if the total stored time for all messages was limited to 30 >> seconds or less. Even just one more memory would be incredibly helpful for >> Field Day and other contests: call, CQ, and exchange. >> >> 73, Ryan AI6DO >> __ >> 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 n...@arrl.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 bbai...@mac.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 Midway and Kure Are Now Deleted DXCC Entities
This is off topic, but big news to the DXers on the reflector. There were Dxpeditions being planned to both of these entities. I don't know if Elecraft was providing equipment to either dxpedition. Here is the link to the ARRL website. http://www.arrl.org/news/midway-and-kure-islands-are-now-deleted-dxcc-entiti es 73, Mark Musick, WB9CIF __ 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] FS: Billet Bronze Chrome K3/K3S A/B VFO Knobs / Pictures
No interest at $90 for these chrome plated brass billet knobs? How about $75 shipped to your door in the US? send an email off the list if interested. Max NG7M -- Matthew George 801-560-8754 > On Mar 26, 2017, at 11:47 AM, M. George wrote: > > I have been cleaning up my shack and I have a 'like new' set of Chrome > replacement knobs for a K3 or K3S. They are really nice, and I know a lot of > operators really like thess heaver knobs on their K3/S. > > It appears that the seller in Bulgaria is no longer selling these. I can't > find them anymore via google. > They just didn't fit the way I like to tune the K3, after I used them for a > little while. So they are up for sell if someone is interested. I think I > paid around $140? and it was a special order to get the VFO B knob inset with > the black color to match the VFO A knob. I would let them go for $90 (paypal > preferred) shipped to the 'CONUS' / to your door or make me a reasonable > offer. They are getting lonely inside the original box from Bulgaria. ;) > > Max NG7M > > Direct link to the pictures... these are pictures I took of the actual knobs > you would be buying. > > http://www.nc7j.com/pa/main.php?cmd=album&var1=NG7M%2FElecraft%2FBronze+VFO+Knobs/ > > P.S. please don't start / resurrect a new/old thread on if heavy knobs are > good / okay or otherwise bad for the K3 encoders. That's the last thing we > all want to see 'ad nauseum' blah, blah, blah.. (sigh...). > > > > -- > M. George __ 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] KX2 Weighted Knob
> > Our goal for the KX2 was to make it really lightweight. Light enough to > be used as an HT. Is it really practical as an HT? Some will use it that way for sure, but it is already quite heavy without an antenna. I really like my KX2, but, with respect, I'm unconvinced the HT use case is worth trading heavily against the more practical use cases. -- Christopher 73 de AI6KG On Thu, Mar 30, 2017 at 5:09 PM, Wayne Burdick wrote: > In response to various comments on the KX2 knob (today and earlier): > > Our goal for the KX2 was to make it really lightweight. Light enough to be > used as an HT. Goat-optional on longer hikes. > > Even 1 ounce of additional weight can increase fatigue when holding a > device (try, for example, carrying around an iPhone 7 vs. an iPhone 7+). So > we designed a low-profile plastic VFO A knob that is big enough to get the > job done. > > Another reason not to use a heavier knob is that the KX2’s VFO encoder is > itself a compact unit that has a sleeve bearing. Weighted knobs should in > general be used only with heavier, ball-bearing style encoders. On this > encoder, a heavy knob would shorten the rotational life. > > Regarding adding a dimple: I’ve tried knobs this size with dimples and > found that they were hard to use. A matter of taste and fingertip size, I > guess. Meanwhile, the present knob can be “spun” to a certain degree by > putting light finger pressure on the rim. > > 73, > Wayne > N6KR > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c...@murgatroid.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] KX2 Weighted Knob
Doug, this was an excellent idea. Last night I {Gorilla} glued four
nuts into my stock KX2 knob. I wasn't at all convinced that it was
going to be heavy enough to work BUT IT SURE AS HECK DID!! Thanks for
the simple but effective solution.
73, Stan WB2LQF
On Thu, Mar 30, 2017 at 06:29 PM, Doug Millar via Elecraft wrote:
Hi, Well, I might have done it. I like a little heavier knob on my
radios. Ever since I had an HRO radio. I took the KX2 knob and put
4 nuts in each of the four bins in the back of the knob. I took some
modeling clay and forced it in to hold the nuts and to give more
weight. I think that is just about perfect for weight and inertia.
Comments? Doug jEY
drzarko...@yahoo.com
562 810 3989 cell/text
__
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 sjl...@optonline.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] Future KX3/KX2 accessories?
I want an Android app for KX2. I may write it myself, if Elecraft doesn't.(I know there's a KX3 app, but it is buggy when run against the KX2). 73, -ch AI6KG On Wed, Mar 29, 2017 at 6:35 PM, Wayne Burdick wrote: > Hi all, > > The weather's been great in the Bay Area lately. That always makes us want > to escape the lab for microDXpeditions to local parks, trails, beaches, and > summits. This is what the KX-line is all about. > > Here's your chance to get us back into the lab :) What future > accessories, antennas, etc. would you like to see for the KX-line? > > 73, > Wayne > N6KR > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c...@murgatroid.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] FS: K2 Weighted Knob
Excess to my needs. See it at the site below. $65 shipped. I take Paypal. Bill WA8CDU http://www.73cnc.com/product_p/k2blkmain.htm __ 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] FCC R&O approves 630m ham band
Better get with the program: :-) http://ae5x.blogspot.com/2017/03/new-rig-for-630-meter-allocation.html John AE5X http://ae5x.blogspot.com/ __ Working on a 472 kHz HT as we speak :) Wayne N6KR This Herb Stops Balding Immediately And Restarts Hair Growth Regrow Hair Protocol http://thirdpartyoffers.juno.com/TGL3131/58deff52bc3527f526c9fst01vuc __ 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] Future KX3/KX2 accessories?
If they're going to do that, I'd like to instead or in addition see an adaptor cable for cellphone "earbud" headsets to use both earbuds and the internal microphone on the KX2. PTT would be nice, but optional. On 3/31/17 17:38 PM, Christopher Hoover wrote: > I would like an adapter for the KX2 that breaks out the microphone and PTT > switch on the mic input TRRS into 3.5mm mic and 3.5mm PTT. > > All of TRRS splitters (mostly designed or CITA mic/phone sets) aren't > helpful given the KX2 mic input pinning. > > Idea is simple: microphone across tip and shield, PTT across the rings. > > I made up my own adapter, but I'd pay for a more robust one with proper > strain relief and over-molding. > > -ch > 73 de AI6KG > > > > On Wed, Mar 29, 2017 at 6:35 PM, Wayne Burdick wrote: > >> Hi all, >> >> The weather's been great in the Bay Area lately. That always makes us want >> to escape the lab for microDXpeditions to local parks, trails, beaches, and >> summits. This is what the KX-line is all about. >> >> Here's your chance to get us back into the lab :) What future >> accessories, antennas, etc. would you like to see for the KX-line? >> >> 73, >> Wayne >> N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Future KX3/KX2 accessories?
I would like an adapter for the KX2 that breaks out the microphone and PTT switch on the mic input TRRS into 3.5mm mic and 3.5mm PTT. All of TRRS splitters (mostly designed or CITA mic/phone sets) aren't helpful given the KX2 mic input pinning. Idea is simple: microphone across tip and shield, PTT across the rings. I made up my own adapter, but I'd pay for a more robust one with proper strain relief and over-molding. -ch 73 de AI6KG On Wed, Mar 29, 2017 at 6:35 PM, Wayne Burdick wrote: > Hi all, > > The weather's been great in the Bay Area lately. That always makes us want > to escape the lab for microDXpeditions to local parks, trails, beaches, and > summits. This is what the KX-line is all about. > > Here's your chance to get us back into the lab :) What future > accessories, antennas, etc. would you like to see for the KX-line? > > 73, > Wayne > N6KR > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c...@murgatroid.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: Boy Scouts need first QSO Saturday
On Saturday morning, April 1, a small group of scouts will be attempting to make their first QSOs, fulfilling a requirement for the Radio merit badge. If you happen to be near your radio, please listen for their CQs (operating under my call) on 14.290 MHz +/- QRM at approx. 10:15 am-11:00 am EDT (1415-1500 UTC). 73, Mark Volstad AI4BJ ARRL Section Youth Coordinator, Kentucky __ 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] Antenna Problems with K3 firmware 5.57
I agree, and you'll need pretty high Q components. Lots of good capacitor choices at HSC. Another suggestion though. KLIV is omni during the day, but strongly directional at night. This is quite common on the AM band. I suggest that you make your strength measurements at night. Depending on where you are, a different station may be stronger at night when you're working 160. Here's a link to the FCC website where you can look up technical details of any broadcast station. https://www.fcc.gov/media/radio/am-query And here's the listing for KLIV Notice the links near the bottom of each listing showing pattern and coverage area. The wild distortions in the coverage area are the result of varying ground conductivity -- the big thumb over the Bay is because it's sea water. https://transition.fcc.gov/fcc-bin/amq?list=0&facid=19531 Another thought, Bill. A horizontal 160M antenna at 20 ft is a real worm-warmer, and while 40 ft is better, it's still very low. If you can do some sort of counterpoise, a top loaded vertical, even if it's short, could work a lot better. Here are slides for the talk I've done several times about getting on 160M. It's mostly about antennas and counterpoises. You might have heard it. :) The K2AV folded counterpoise seems to work pretty well, and doesn't take a lot of space. 73, Jim K9YC On Fri,3/31/2017 2:50 PM, Walter Underwood wrote: Use a series-tuned “wave trap” on KLIV’s frequency across your feedline. __ 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] Obtaining the KX2's ATU LC values
Hi Ed, Thanks for adding this to your software. For both rigs, you could also read the “LxxCxxNx” info right off the VFO A display, if you’d like. Just use MN to get to the ATU DATA menu entry (index 112), then use SWT to virtually tap “ATU” (KX2) or “ATU TUNE (KX3), and finally read the data right off the VFO display using DS. Note that it’s a transitory display lasting about 2.5 seconds. Wayne N6KR > On Mar 31, 2017, at 2:19 PM, Edouard Lafargue wrote: > > > OK, just added a "ATU Diagnostics" in Wizkers:Radio for the KX3 during my > lunch break. Very simple so far. I will implement it for the KX2 too (in > "blind mode", since I don't have a KX2) and release an update during the > week-end. http://wizkers.io/wizkersradio if you don't already know about it > ;) > > > > > On Fri, Mar 31, 2017 at 12:10 PM, Wayne Burdick wrote: > The KX2 firmware currently being field tested allows you to determine the > ATU’s LC network settings while in the menu. (This feature will be added to > the KX3 as well.) > > Below is the information needed to extract the actual L, C, and L-net > configuration values from the information that is flashed on VFO A when you > tap “ATU” in the new ATU DATA menu entry. > > Wayne > N6KR > > * * * > > While in the ATU DATA (or ATU MD) menu entry, tap ‘ATU’ to obtain the L/C/Net > values. > > The displayed data format is “LaaCbbNc;”, where: > >aa = inductance bitmap in ASCII hex format >bb = capacitance bitmap in ASCII hex format >c = L network relay setting: > > A = capacitance on antenna side > T = capacitance on transmitter side > > Example: Suppose “L03C12NT” is flashed. The network setting is shown by the > last character (A or T; see above). > > Next, convert the L and C hexadecimal quantities to binary: > >03 => 0011 (L) >12 => 00010010 (C) > > Compare these values to the lists below, which show approximate L and C > values for each bit of the binary word. In the example above, 0011 for L > means that two smallest inductors are switched in (.05 and .11 uH). Add these > together to determine the total L value. Similarly, add up the selected > capacitors based on the binary value 00010010. > > > --- Binary Value -- > 0 0 0 0 0 0 0 > L, uH: 4.0 2.0 1.0 .5.23 .11 .05 > > > --- Binary Value -- > 0 0 0 0 0 0 0 > C, pF: 680 330 164 82391810 > > > Note on L/C values: The ATU uses industry standard 5 % values for C, and > approximately 5% tolerance on toroidal inductors. L and C are not exact but > will be monotonic over the required range of about 3 to 5 elements for a > given match. In addition, all ATUs have stray L and C that will result in > selection of somewhat different values than expected. This effect becomes > more pronounced as the operating frequency increases. > > > > > > > > > > > __ > 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 edou...@lafargue.name > __ 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] Antenna Problems with K3 firmware 5.57
Bill, I would try an L/C series trap at the frequency of your offending BC band station across your antenna feedline. That should not be dependent on the IN/OUT impedance requirement of the DX Engineering BC band filter. 73, Don W3FPR On 3/31/2017 5:36 PM, Bill Frantz wrote: The voltage is most likely from AM broadcast stations. The strongest station, measured with the P3, is KLIV (5000W) about 8 miles from my QTH. __ 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; New technology/Graphene
Oh, to be younger... On 3/31/2017 3:21 PM, Wayne Burdick wrote: > The instant high-power-density graphene ultra capacitors become available at > reasonable cost, we’ll be designing them into our radios. Could be the > biggest breakthrough since the Leyden jar. > > 73, > Wayne > N6KR > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Antenna Problems with K3 firmware 5.57
Use a series-tuned “wave trap” on KLIV’s frequency across your feedline. That will short out the feedline at that frequency. It will add some inductive load above the resonant frequency, but the ATU can deal with that. The components need to be rated for the transmission line voltages, but they probably won’t be handling a lot of current. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 31, 2017, at 2:36 PM, Bill Frantz wrote: > > I have a 160M full length dipole. The center used to be at about 40 feet. > About the time version 5.57 of the firmware came out, the mast supporting the > center feed point broke and I re-rigged with the center at about 22 feet. (I > hate debugging when there were two changes.) > > Measurement of the lowered antenna with a MFJ-259B antenna analyzer show > 1.2:1 SWR match at 1.87 KHz with 2,5:1 and 3.3:1 at the band edges from the > shack. Because of the mismatch at the band ends, I usually use the antenna > using the KAT3A tuner installed in my K3. (I don't have similar figures for > the higher antenna, but the SWR curve matches the computer model.) > > I used the antenna with modest success including 10 DXCCs and 41 US states > confirmed. > > When I installed 5.57, I noticed significant power drops on 160M, stepping > down from 100W to 25W and 50W. With the help of Elecraft support, we have > concluded that the antenna is irritating the new firmware feature: > >K3 MCU 5.57 / DSP 2.88 / FPF 1.26, 2-16-2017 > >* FASTER RESPONSE TO HIGH REFLECTED POWER. The transceiver will now reduce >drive more quickly when transient conditions cause excessive reflected >power. This roll-back response does not change the set power level (PWR >knob); instead, it reduces the drive to get below the reflected power >limit. This means that once a better match is restored (such as when using >an antenna tuner), the set power level will automatically be restored. > > When I backed off to version 5.50, 160M performance seems to have gone back > to what it was. > > Measuring the open-circuit voltage on the antenna feed line with a > oscilloscope shows about 600mV peak to peak. I estimate, based on eyeballing > the trace and measuring other antennas, that about 200mV of that is 60 cycle > hum. Elecraft support thinks this is enough voltage to affect the internal K3 > SWR bridge. > > The voltage is most likely from AM broadcast stations. The strongest station, > measured with the P3, is KLIV (5000W) about 8 miles from my QTH. > > > So now, the question is what to do about the problem. Several things I have > been able to think of are: > > * Use a broadcast band filter. DXEngineering has one that will handle 200W, > but it wants 50 ohms impedance on both ends. Therefore it is recommended to > install it between the power amp (internal to the K3) and the tuner (also > internal to the K3). I might be tempted to insert one in the K3, but the > tuner and power amp are connected through a header, not a simple cable I > could reroute to install the filter. > > * Get a KAT500 and the filter. Expensive, but straight forward. > > * Sometimes the power remains at 100W when the internal tuner is in bypass > mode, but not always. It might remain stable enough for QSO, but flipping > back and fourth seems to be a pain. > > Does anyone have any suggestions? > > Thanks - Bill AE6JV > > --- > Bill Frantz| Concurrency is hard. 12 out | Periwinkle > (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave > www.pwpconsult.com |- Jeff Frantz | Los Gatos, CA 95032 > > __ > 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 wun...@wunderwood.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
[Elecraft] Antenna Problems with K3 firmware 5.57
I have a 160M full length dipole. The center used to be at about 40 feet. About the time version 5.57 of the firmware came out, the mast supporting the center feed point broke and I re-rigged with the center at about 22 feet. (I hate debugging when there were two changes.) Measurement of the lowered antenna with a MFJ-259B antenna analyzer show 1.2:1 SWR match at 1.87 KHz with 2,5:1 and 3.3:1 at the band edges from the shack. Because of the mismatch at the band ends, I usually use the antenna using the KAT3A tuner installed in my K3. (I don't have similar figures for the higher antenna, but the SWR curve matches the computer model.) I used the antenna with modest success including 10 DXCCs and 41 US states confirmed. When I installed 5.57, I noticed significant power drops on 160M, stepping down from 100W to 25W and 50W. With the help of Elecraft support, we have concluded that the antenna is irritating the new firmware feature: K3 MCU 5.57 / DSP 2.88 / FPF 1.26, 2-16-2017 * FASTER RESPONSE TO HIGH REFLECTED POWER. The transceiver will now reduce drive more quickly when transient conditions cause excessive reflected power. This roll-back response does not change the set power level (PWR knob); instead, it reduces the drive to get below the reflected power limit. This means that once a better match is restored (such as when using an antenna tuner), the set power level will automatically be restored. When I backed off to version 5.50, 160M performance seems to have gone back to what it was. Measuring the open-circuit voltage on the antenna feed line with a oscilloscope shows about 600mV peak to peak. I estimate, based on eyeballing the trace and measuring other antennas, that about 200mV of that is 60 cycle hum. Elecraft support thinks this is enough voltage to affect the internal K3 SWR bridge. The voltage is most likely from AM broadcast stations. The strongest station, measured with the P3, is KLIV (5000W) about 8 miles from my QTH. So now, the question is what to do about the problem. Several things I have been able to think of are: * Use a broadcast band filter. DXEngineering has one that will handle 200W, but it wants 50 ohms impedance on both ends. Therefore it is recommended to install it between the power amp (internal to the K3) and the tuner (also internal to the K3). I might be tempted to insert one in the K3, but the tuner and power amp are connected through a header, not a simple cable I could reroute to install the filter. * Get a KAT500 and the filter. Expensive, but straight forward. * Sometimes the power remains at 100W when the internal tuner is in bypass mode, but not always. It might remain stable enough for QSO, but flipping back and fourth seems to be a pain. Does anyone have any suggestions? Thanks - Bill AE6JV --- Bill Frantz| Concurrency is hard. 12 out | Periwinkle (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave www.pwpconsult.com |- Jeff Frantz | Los Gatos, CA 95032 __ 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; New technology/Graphene
The instant high-power-density graphene ultra capacitors become available at reasonable cost, we’ll be designing them into our radios. Could be the biggest breakthrough since the Leyden jar. 73, Wayne N6KR > On Mar 31, 2017, at 1:01 PM, Richard Fjeld wrote: > > Here is another video about Graphene that is much nicer to look at. : ) > > https://www.youtube.com/watch?v=c4oW6PcOUtc > > On a serious note, think about how it could change the hobby. Her closing > statement is good. > > > > On 3/30/2017 4:22 PM, Richard Fjeld wrote: > > (If this has been mentioned before, I apologize.) > > In looking for information on new battery technology, I found some > interesting talks on YouTube about Graphene tied to battery development. > > Graphene is revolutionary. Relative to an Electron, the thickness of > Graphene is said to be two dimensional. > > I don't know which is the most informative link. This is one of > several. https://www.youtube.com/watch?v=eh3dA8xnZ4Y > > I foresee the possibility of this bringing changes to the hobby, not > only in batteries. (Consider invisible antennas as you watch the video.) > > Dick, n0ce __ 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 now also has two ATU data sets (one for home use, the other for field trips)
I just added the KX2’s new ATU feature to the KX3 as well. If you have a KX3 with the ATU option and would like to try this, please email me directly. Of course I’m working on other features and bug fixes for both radios, but this one seemed timely given the many requests and the fine weather we’re having (at least here in N. California). 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX2 Weighted Knob [correction]
One of our customers with considerable mechanical engineering knowledge pointed out that sleeve bearings are not not inherently inferior to ball bearings. So the difference in longevity and load rating the KX2’s contacting VFO encoder vs. the K3’s optical VFO encoder is not necessarily due due to the bearing type. More likely it’s due to the differences between resistive (mechanical) contacts vs. optical sensing, as well as overall construction. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT; New technology/Graphene
Here is another video about Graphene that is much nicer to look at. : ) https://www.youtube.com/watch?v=c4oW6PcOUtc On a serious note, think about how it could change the hobby. Her closing statement is good. On 3/30/2017 4:22 PM, Richard Fjeld wrote: (If this has been mentioned before, I apologize.) In looking for information on new battery technology, I found some interesting talks on YouTube about Graphene tied to battery development. Graphene is revolutionary. Relative to an Electron, the thickness of Graphene is said to be two dimensional. I don't know which is the most informative link. This is one of several. https://www.youtube.com/watch?v=eh3dA8xnZ4Y I foresee the possibility of this bringing changes to the hobby, not only in batteries. (Consider invisible antennas as you watch the video.) Dick, n0ce -- __ 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] Obtaining the KX2's ATU LC values
The KX2 firmware currently being field tested allows you to determine the ATU’s LC network settings while in the menu. (This feature will be added to the KX3 as well.) Below is the information needed to extract the actual L, C, and L-net configuration values from the information that is flashed on VFO A when you tap “ATU” in the new ATU DATA menu entry. Wayne N6KR * * * While in the ATU DATA (or ATU MD) menu entry, tap ‘ATU’ to obtain the L/C/Net values. The displayed data format is “LaaCbbNc;”, where: aa = inductance bitmap in ASCII hex format bb = capacitance bitmap in ASCII hex format c = L network relay setting: A = capacitance on antenna side T = capacitance on transmitter side Example: Suppose “L03C12NT” is flashed. The network setting is shown by the last character (A or T; see above). Next, convert the L and C hexadecimal quantities to binary: 03 => 0011 (L) 12 => 00010010 (C) Compare these values to the lists below, which show approximate L and C values for each bit of the binary word. In the example above, 0011 for L means that two smallest inductors are switched in (.05 and .11 uH). Add these together to determine the total L value. Similarly, add up the selected capacitors based on the binary value 00010010. --- Binary Value -- 0 0 0 0 0 0 0 L, uH: 4.0 2.0 1.0 .5.23 .11 .05 --- Binary Value -- 0 0 0 0 0 0 0 C, pF: 680 330 164 82391810 Note on L/C values: The ATU uses industry standard 5 % values for C, and approximately 5% tolerance on toroidal inductors. L and C are not exact but will be monotonic over the required range of about 3 to 5 elements for a given match. In addition, all ATUs have stray L and C that will result in selection of somewhat different values than expected. This effect becomes more pronounced as the operating frequency increases. __ 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] New KX2 firmware to test; provides two sets of ATU data and LC value display
Wayne wrote: >> Someone armed with the KXAT2 schematic could write a little program that >> converts xx into microhenries and picofarads. I’d do it myself if I had the >> spare time. Such a project is challenging because the KXAT2 schematic and parts values have *not* been made available outside very limited distribution. Holger wrote: > aeons ago you wrote the L/C values into this mailing list (even before the > schematic was released, AFAIK). *) > > I wrote a Python program that convers the bit pattern of the relais setting > that the AK serial command returns into uF and mH. See here: > https://gist.github.com/anonymous/5d53f5bdbc50782a9d5e2c8d7062be69 > > *) > http://elecraft.365791.n2.nabble.com/KX3-Operating-Tip-Determining-the-ATU-s-L-C-values-and-L-net-configuration-td7560189.html > is the post I used for the L/C values. That information applies to the KX3, *not* to the KX2 that is the target of Wayne's post. Necessary technical information in the form of schematics and part values has *not* been made generally available for the KXAT2. Mike / KK5F __ 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] [DETECTED AS SPAM] Use of KX3 on 630m
And almost none of them active, there are a few but in my 2 plus years of operating daily on 630M with the K3, its rare to see a ARRL call sign come through. The bulk of 630 work has been done by part 5 licensees that operate daily on the band, by people like KB5NJD whose web page is read daily and lists the activity on 630. There are 80 to 100 or more operating on 630m on a good night, I am running 1w eirp and daily work VK, ZL, JA, ZF, VE, XE, all of the US mainland etc. 73 Merv K9FD/KH6 WH2XCR 630M There are 45 operators on 600m with the ARRL Experimental Group: http://www.500kc.com/ 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: 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 k...@flex.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] Future KX3/KX2 accessories?
Don, The P3 needs an IF signal and there is none in the KX3. The KX3 has the RX I/Q outputs which you can connect to a computer soundcard, or to the PX3. The display for the PX3 is the same size as the P3 (it uses the same display) and will accept a keyboard input as well. 73, Don W3FPR On 3/31/2017 12:52 PM, Don Nesbitt n...@yahoo.com [KX3] wrote: Any chance of an adapter that would allow the use of the P3 with the KX3 -- Don N4HH __ 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] Future KX3/KX2 accessories?
I'm pretty sure I'm beating a dead horse -- but -- once upon a time in a land
far away ...
Any chance of an adapter that would allow the use of the P3 with the KX3
-- Don N4HH
From: "Wayne Burdick n...@elecraft.com [KX3]"
To: Elecraft Reflector ; "k...@yahoogroups.com"
Sent: Wednesday, March 29, 2017 9:35 PM
Subject: [KX3] Future KX3/KX2 accessories?
Hi all,
The weather's been great in the Bay Area lately. That always makes us want to
escape the lab for microDXpeditions to local parks, trails, beaches, and
summits. This is what the KX-line is all about.
Here's your chance to get us back into the lab :) What future accessories,
antennas, etc. would you like to see for the KX-line?
73,
Wayne
N6KR
__._,_.___ Posted by: Wayne Burdick
| Reply via web post | • | Reply to sender | • | Reply to group | • |
Start a New Topic | • | Messages in this topic (1) |
Have you tried the highest rated email app? With 4.5 stars in iTunes,
the Yahoo Mail app is the highest rated email app on the market. What are you
waiting for? Now you can access all your inboxes (Gmail, Outlook, AOL and more)
in one place. Never delete an email again with 1000GB of free cloud storage.
Visit Your Group
- New Members 14
- New Photos 2
• Privacy • Unsubscribe • Terms of Use
.
__,_._,___#yiv8276103100 #yiv8276103100 -- #yiv8276103100ygrp-mkp {border:1px
solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv8276103100
#yiv8276103100ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv8276103100
#yiv8276103100ygrp-mkp #yiv8276103100hd
{color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}#yiv8276103100 #yiv8276103100ygrp-mkp #yiv8276103100ads
{margin-bottom:10px;}#yiv8276103100 #yiv8276103100ygrp-mkp .yiv8276103100ad
{padding:0 0;}#yiv8276103100 #yiv8276103100ygrp-mkp .yiv8276103100ad p
{margin:0;}#yiv8276103100 #yiv8276103100ygrp-mkp .yiv8276103100ad a
{color:#ff;text-decoration:none;}#yiv8276103100 #yiv8276103100ygrp-sponsor
#yiv8276103100ygrp-lc {font-family:Arial;}#yiv8276103100
#yiv8276103100ygrp-sponsor #yiv8276103100ygrp-lc #yiv8276103100hd {margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}#yiv8276103100
#yiv8276103100ygrp-sponsor #yiv8276103100ygrp-lc .yiv8276103100ad
{margin-bottom:10px;padding:0 0;}#yiv8276103100 #yiv8276103100actions
{font-family:Verdana;font-size:11px;padding:10px 0;}#yiv8276103100
#yiv8276103100activity
{background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}#yiv8276103100
#yiv8276103100activity span {font-weight:700;}#yiv8276103100
#yiv8276103100activity span:first-child
{text-transform:uppercase;}#yiv8276103100 #yiv8276103100activity span a
{color:#5085b6;text-decoration:none;}#yiv8276103100 #yiv8276103100activity span
span {color:#ff7900;}#yiv8276103100 #yiv8276103100activity span
.yiv8276103100underline {text-decoration:underline;}#yiv8276103100
.yiv8276103100attach
{clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}#yiv8276103100 .yiv8276103100attach div a
{text-decoration:none;}#yiv8276103100 .yiv8276103100attach img
{border:none;padding-right:5px;}#yiv8276103100 .yiv8276103100attach label
{display:block;margin-bottom:5px;}#yiv8276103100 .yiv8276103100attach label a
{text-decoration:none;}#yiv8276103100 blockquote {margin:0 0 0
4px;}#yiv8276103100 .yiv8276103100bold
{font-family:Arial;font-size:13px;font-weight:700;}#yiv8276103100
.yiv8276103100bold a {text-decoration:none;}#yiv8276103100 dd.yiv8276103100last
p a {font-family:Verdana;font-weight:700;}#yiv8276103100 dd.yiv8276103100last p
span {margin-right:10px;font-family:Verdana;font-weight:700;}#yiv8276103100
dd.yiv8276103100last p span.yiv8276103100yshortcuts
{margin-right:0;}#yiv8276103100 div.yiv8276103100attach-table div div a
{text-decoration:none;}#yiv8276103100 div.yiv8276103100attach-table
{width:400px;}#yiv8276103100 div.yiv8276103100file-title a, #yiv8276103100
div.yiv8276103100file-title a:active, #yiv8276103100
div.yiv8276103100file-title a:hover, #yiv8276103100 div.yiv8276103100file-title
a:visited {text-decoration:none;}#yiv8276103100 div.yiv8276103100photo-title a,
#yiv8276103100 div.yiv8276103100photo-title a:active, #yiv8276103100
div.yiv8276103100photo-title a:hover, #yiv8276103100
div.yiv8276103100photo-title a:visited {text-decoration:none;}#yiv8276103100
div#yiv8276103100ygrp-mlmsg #yiv8276103100ygrp-msg p a
span.yiv8276103100yshortcuts
{font-family:Verdana;font-size:10px;font-weight:normal;}#yiv8276103100
.yiv8276103100green {color:#628c2a;}#yiv8276103100 .yiv8276103100MsoNormal
{margin:0 0 0 0;}#yiv8276103100 o {font-size:0;}#yiv8276103100
#yiv8276103100photos div {float:left;width:72px;}#yiv8276103100
#yiv8276103100photos div div {border:1px solid
#66;height:62px;overflow:hidden;width:62px;}#yiv8276103100
#yiv8276103100photos div label
{color:#66;font-
Re: [Elecraft] New KX2 firmware to test; provides two sets of ATU data and LC value display
Don, I already use ANT1 and ANT2 for my 2 primary antennas. But if I connect a third antenna, say to ANT1, and use the KAT3 to match it on a few bands, then I've lost the settings for those bands for one of my primary antennas previously connected to ANT1. Or have I misunderstood something? 73, Randy, KS4L On Mar 31, 2017 7:07 AM, "Don Wilhelm" wrote: > Randy, > > You already have a similar capability in the K3 with KAT3. > It is the ANT1/ANT2 selection. > > 73, > Don W3FPR > > On 3/31/2017 7:33 AM, Randy Moore wrote: > >> Wayne, >> >> I would use this on my K3/KAT3. I have more than 2 wire antennas in my >> yard, and experiment with different ones. I could keep my 2 primary >> antennas in SET1, and use SET2 for my trial antennas! Any chance? >> >> __ 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] For Sale
Juma PA100-D, 100 W Linear, Factory Assembled. 5W in, 100W out, in (4) fixed stages. $600.00 including Freight CONUS Great little amp Please email me direct for info. s...@leben.com Sid KC2ee __ 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] Future KX3/KX2 accessories?
Computerised language translation is predicated on good continuous speech recognition. For a long time that is going to rely on relatively clean audio. Even if automated translation in noise becomes possible, with the amount of noise, etc., on an amateur radio circuit, the additional degradation in going from digital to analogue and back is likely to be negligible. There is also a fundamental problem with machine translation in that the solution for the translation will not stabilise until the end of sentence, or later. Whilst a human also needs to reach this point for full understanding, they will have part processed the speech before they get there. In the general case, the machine translator cannot even start passing the translation on to the human until it reaches this point, so there will always be a significant extra processing delay, compared with understanding the language, directly. I would also expect any software or hardware that comes onto the market to have been designed for use with at least the telephone bandwidth of 300-3.4kHz, not the narrower bandwidth used for SSB radio. Even telephone bandwidth is not enough to accurately recognize sibilants (s, sh, h, etc.). The main case where direct digital is useful is for digital mode, where phase errors, which have no impact on speech recognition, may be significant. On 30/03/17 19:20, Steve Sergeant wrote: How abut signal processing operations that are beyond the DSP capability in the radio? How about some not-so-distant future when spoken language translation might be possible? __ 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] New KX2 firmware to test; provides two sets of ATU data and LC value display
Randy, You already have a similar capability in the K3 with KAT3. It is the ANT1/ANT2 selection. 73, Don W3FPR On 3/31/2017 7:33 AM, Randy Moore wrote: Wayne, I would use this on my K3/KAT3. I have more than 2 wire antennas in my yard, and experiment with different ones. I could keep my 2 primary antennas in SET1, and use SET2 for my trial antennas! Any chance? __ 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] New KX2 firmware to test; provides two sets of ATU data and LC value display
Wayne, I would use this on my K3/KAT3. I have more than 2 wire antennas in my yard, and experiment with different ones. I could keep my 2 primary antennas in SET1, and use SET2 for my trial antennas! Any chance? 73, Randy, KS4L > On Mar 30, 2017, at 9:48 PM, Wayne Burdick wrote: > > Hi all, > > I have a lot of firmware in progress on several different radios, but the > idea of having two sets of ATU data was irresistible, so I added it to the > KX2 to try it out. I’ll port it to the KX3, too. > > There’s now a menu entry called ATU DATA, with two selections: SET 1 and SET > 2. Each provides ATU settings for all bands (up to 32 segments per). I’m > using SET 1 for home and SET 2 for field operation. > > I also changed the way the CLR function (OFS knob hold) works. Now, if you’re > in either the ATU DATA or ATU MD menu entries, holding CLR only clears the > network values for the *presently selected* ATU data set (on the present > band). Thus you can arrive at your campsite, etc., select SET 2, then do a > CLR on each band if you’d like, without messing up your SET 1 data. > > (Doing a CLR is a good idea with any new antenna on a given band. With fairly > low-Q antennas, you may then only have to do an ATU tune at the middle of > each band. The ATU always uses data for the closest of the 32 segments on > each band that has non-zero data, even if there’s just one segment pre-tuned.) > > To verify that the ATU DATA feature working, I added another new function. > While you’re in the ATU DATA or ATU MD menu entries, you can tap “ATU” to see > the present LC network values. It’s a little cryptic but still useful. The > format is Lxx.Cxx.Nx, where: > >Lxx or Cxx = L or C relay settings in hexadecimal >Nx = Network C in/out relay setting, either A = antenna side of inductor, > or T = TX side. > > Someone armed with the KXAT2 schematic could write a little program that > converts xx into microhenries and picofarads. I’d do it myself if I had the > spare time. > > If anyone else would like to give the new firmware a whirl, please email me > directly. > > 73, > Wayne > N6KR > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wrmoor...@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] Use of KX3 on 630m
I recall this topic was discussed a year ago or so. I have tested the Rx and it seems to well (almost equal with the K3). But do not recall if the KX3 can transmit below 160m. Recall that the BC filtering was modified to increase sensitivity below 550-KHz. I'm guessing transmitting with the K3 is too complicated a modification in other than the TEST mode. Actually not hard to make a driver using a good old 2N driven by the K3 at 1 mw. Follow that with transistors that will boost power into watts to be followed by a 100w amp. I think some experimenters should explore modifying 100w stereo amps to pass 472 KHz. remove the audio input and output transformers and use capacitive coupling. Might surprise how easy that might be. Any of you old tube guys ought to still find some tube Hi-Fi amps out there. Easy start antenna for 630m is the T antenna using an 80m or 160m dipole or inverted-V. Short coax feed shield to center conductor which converts it to a vertical with top hat. You will need a base loading coil to transmit but probably Rx with this simple set up. The NDB beacons operated from 200-518 KHz and used a 300-foot top wire with 60-foot vertical wire to the center. Wire was tuned with inductive coupling coils. There are still many NDB still operating in AK. I have copied one as far as 1000 mi out on the Aleutian chain. Use of a SDR is handy for Rx. There are 45 operators on 600m with the ARRL Experimental Group: http://www.500kc.com/ 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: 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] [KX3] New KX2 firmware to test; provides two sets of ATU data and LC value display
> > > Someone armed with the KXAT2 schematic could write a little program that > converts xx into microhenries and picofarads. I’d do it myself if I had the > spare time. > Hi Wayne, aeons ago you wrote the L/C values into this mailing list (even before the schematic was released, AFAIK). *) I wrote a Python program that convers the bit pattern of the relais setting that the AK serial command returns into uF and mH. See here: https://gist.github.com/anonymous/5d53f5bdbc50782a9d5e2c8d7062be69 *) http://elecraft.365791.n2.nabble.com/KX3-Operating-Tip-Determining-the-ATU-s-L-C-values-and-L-net-configuration-td7560189.html is the post I used for the L/C values. __ 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] Future KX3/KX2 accessories?
Opensource KX3Utilities (and KX2Utilities) so that people can compile it by themselves for x86, amd_64, arm (e.g. Raspberry), Android, MacOSX, Windows CE, normal Windows and so on. Qt5 plus some simple C++ is an awesome programming environment. Elecraft could only compile it for, e.g. Windows, but keep the source on Github so people can contribute if needed. But usually you don't have to apply any OS specific things, even the serial port is nicely abstracted from OS to OS. __ 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] Wanted: XV-432 transverter
After many years away from 432MHz, I'm feeling the urge to come back to the band. Does anyone on the list have an XV-432 that is gathering dust? (Payment in US$ and shipping to Atlanta, GA.) 73 from Ian GM3SEK __ 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] Future KX3/KX2 accessories?
Sorry if you have this more than once, but I cannot get the KX Yahoo group to post my messages. Good question Wayne, For me it's the KX2 battery, the space for internal battery is limited in size and original pack is difficult to source in VK. A larger bottom plate that would accommodate a larger range of batteries would be nice. Maybe even a AA cell holder. This would allow some flexibility when travel both by air and when using the rig on a multi-day walking trip. As for software changes, Using the OFS mode for Course tuning and the Main VFO knob for Fine tuning is great but this is at the expense of the DISPlay function. It would be great to leave the VFO B display set as DISPlay but still have the option to Course tune via the VFO B Knob, rather than changing the tuning rate of the Main VFO knob between course and fine when DISPlay is on. This would be similar to how the TEXT DECODE mode works, and would allow the operator to leave the DISPlay on Voltage, Clock or whatever they wanted and still have course tuning. Another advantage of this feature is it allows the Main VFO Knob to be locked thus reducing the Bump and QSY risk. Implementation could be via a new option in the Menu setup, VFO B display [VFO B or DISP] when in OFS Mode. Or maybe When OFS On, Display [VFO B, Voltage, Time, Ah etc..] 73, Warren, vk3byd KX2 # 479 Message: 5 Date: Wed, 29 Mar 2017 18:35:21 -0700 From: Wayne Burdick To: Elecraft Reflector , "k...@yahoogroups.com" Subject: [Elecraft] Future KX3/KX2 accessories? Message-ID: <8e390661-ceee-4c94-bab9-b7d0258ed...@elecraft.com> Content-Type: text/plain; charset=us-ascii Hi all, The weather's been great in the Bay Area lately. That always makes us want to escape the lab for microDXpeditions to local parks, trails, beaches, and summits. This is what the KX-line is all about. Here's your chance to get us back into the lab :) What future accessories, antennas, etc. would you like to see for the KX-line? 73, Wayne N6KR -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
