Re: [Elecraft] KX2 Micro Manual

Not to belittle your effort; what I've done is download the .PDF manuals into my (free) Dropbox account, so that no matter where I am or what device I am using (presuming it's mine), I have access to those files.  There is a flavor of Dropbox for almost any current device. I do the same with m

[Elecraft] KX2 Micro Manual

Greetings KX2 users. I have developed an app for iPhones and iPads that is a comprehensive guide to using the KX2. This app was developed in response to requests from many KX2 users for an app like the ones I’ve created for the KX3 and other Elecraft products. It is available in the Apple App

[Elecraft] KX2: mono headphone with dual-watch enabled ok?

Good morning all, A recent article in CQ Magazine describes a technique of listening to a station on two slightly different frequencies (65-80 Hz apart) in order to possibly increase the ability to copy weak signals. Both frequencies need to be provided to both sides of the headphones to achieve t

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Fine business, Bjorn ^_^ One my fav ways to elmer the Morse code as practiced is, in fact, to set folx around a table and pass the ‘transmitting station’ around the table and have a real roundtable QSO (albeit only acoustically) You can use your KX2 as the code practice oscillator by turning VO

Re: [Elecraft] KX2 CW TX DECODE FOR CODE PRACTICE

Got it. Will test. Tnx! On 2017-12-31 00:54, Jim Ewing wrote: Bjorn, your email asked as follows about Morse Code Agent: -- Query: From: Bjorn Pehrson mailto:bpehr...@kth.se>> To: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net> Subject: Re: [Elec

[Elecraft] KX2 CW TX DECODE FOR CODE PRACTICE

Bjorn, your email asked as follows about Morse Code Agent: -- Query: From: Bjorn Pehrson To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key Message-ID: <8fe7c5ea-bb75-e780-a467-9e98a0469...@kth

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Jim, Joan, Ray, Ron, Wayne, Thanks a lot for broadening my perspectives on cw code practicing, including prompting me to learn some Tamarian language and find out what a Left Hand Milk Stout is. I am currently somewhere between 13-15 wpm receiving but know little about what I sound like when

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Bjorn, theoretically, it would be possible. However, our human ability to recognize patterns is remarkably good; and therefore our ‘wetware’ can hear things (such as straight key) without special effort, whereas the machine may see only gibberish. In principle, machine learning could be appl

Re: [Elecraft] KX2 CW tx decode for practicing

That book is too tiny for me to read anymore. Glad I don’t need one anymore! Sent from my iPhone ...nr4c. bill > On Dec 29, 2017, at 4:16 PM, Ron D'Eau Claire wrote: > > Back when I and my buddies were learning CW we had to pass 5, then 13 wpm > sending tests at the FCC to get our license. Th

[Elecraft] KX2 CW to decode for practicing

Amen, Jim. You’re doing it the right way. Text decode should be used primarily for monitoring sending. Far too many ops who copy well think they can also send well when in fact they are running words together, running characters together, putting spaces in the middle of words (because they c

Re: [Elecraft] KX2 CW tx decode for practicing

Back when I and my buddies were learning CW we had to pass 5, then 13 wpm sending tests at the FCC to get our license. That provided reassurance that our fists were readable. The same was true for my commercial radiotelegraph license using a straight key at 20 wpm. But, IMX, the best decode

[Elecraft] KX2 CW tx decode for practicing

un...@mailman.qth.net] On Behalf Of Raymond Sills Sent: Wednesday, December 27, 2017 10:13 AM To: bpehr...@kth.se Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key Hi Bjorn: Personally, I think the best way to practice morse us

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Tnx for info and tip Wayne. Will try. Bjorn/sa0bxi On 2017-12-27 19:05, Wayne Burdick wrote: Sorry, Bjorn, transmit text decode only works with the internal keyer. There is another way. You could build a simple crystal oscillator that puts out a weak signal somewhere in the KX2’s receive tun

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

-boun...@mailman.qth.net] On Behalf Of Raymond Sills Sent: Wednesday, December 27, 2017 10:13 AM To: bpehr...@kth.se Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key Hi Bjorn: Personally, I think the best way to practice morse using a hand key,

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Hi Bjorn: Personally, I think the best way to practice morse using a hand key, is to simply get on the air and make QSOs. 73 de Ray K2ULR KX3 #211 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft H

Re: [Elecraft] KX2 CW tx decode for code practicing using external straight key

Sorry, Bjorn, transmit text decode only works with the internal keyer. There is another way. You could build a simple crystal oscillator that puts out a weak signal somewhere in the KX2’s receive tuning range. Once you tune into that signal, the decoder could track your CW regardless of how you

[Elecraft] KX2 CW tx decode for code practicing using external straight key

Dear all, I am trying to understand if it is possible to get a kx2 decode cw tx for code practising purposes if using a straight key. I get everything working nicely using the internal paddle but I cannot get it working with an external straight key connected to the 3.5mm key contact. I do m

Re: [Elecraft] |KX2 Deaf on 7.0

Hi David, Have been contacted by Elecraft support and as you suggest they also recommend it goes to Italy for repair. Now all I have to do is wait for the RMA from Carlo. Support did also id the part and location for me  even with a photo of the location. Great service as you would expect.73

Re: [Elecraft] |KX2 Deaf on 7.0

Tony, Elecraft have a service agent - Carlo Bianconi - in Italy who does great work. Shipping was very reasonable. Several of the 6Gs DXpedition team sent KPA500s over to him for a hardware upgrade and full checkout before our first trip (TX6G). I'd chat with Elecraft support first, but if they s

Re: [Elecraft] |KX2 Deaf on 7.0

Yes, by all means Tony should contact Elecraft service. They are staffed with very competent people, and have developed methods of supporting customers around the world. Several years ago, I experienced excellent support from SDR Kits, a small UK company that builds the excellent VNWA Vector N

Re: [Elecraft] |KX2 Deaf on 7.0

Hi Tony, Sounds like a smoking gun to me.  Certainly there must be someone on that side of the Atlantic that could replace an SMT part!  I'm sure Elecraft would provide guidance. 73, Scott K9MA On 12/26/2017 06:58, Tony G6GLP wrote: Hi Scott I had a look inside and under the atu but nothing

Re: [Elecraft] |KX2 Deaf on 7.0

Hi Scott I had a look inside and under the atu but nothing looks out of place until a little smt device dropped out. It looks like a coil of some sort but I am not sure where it fell off and even if I did I now dont have the facilities to put is back with any dignity. So when the elves get bac

Re: [Elecraft] |KX2 Deaf on 7.0

It might be worth taking a look at the bandpass filters, just to see if there's a broken inductor wire, or something else simple.  I've always been suspicious of those toroids supported only by their leads.  You could also just do some continuity tests, to make sure the relays are OK. Unfortun

Re: [Elecraft] |KX2 Deaf on 7.0

Hi Howard, Thanks for the info on the closed days I hadnt tried the RX on 60m but just have and it seems to be similarly affected. The TX on 60 also shows continuous 25.4 swr. Sounds even more likely the band pass filter now is faulty. 73 de Tony G6GLP On 25/12/2017 19:55, Howard Stephenson

Re: [Elecraft] |KX2 Deaf on 7.0

Hi Tony, It's my understanding that Elecraft will be closed Monday and Tuesday for the holiday For your KX2 issue, did you also test into a dummy load on 60M? The KX2 shares the LPF on 40M and 60M (page 14 in the schematics package)

Re: [Elecraft] |KX2 Deaf on 7.0

Hi Don, Seasons greeting to you. The problem is only on 40m (7.0mhz) and I suspect band pass filters as nothing wrong with ANT and the same result into a dummy load. When I press the tune the display shows 0.0 jumps to 10.0 and straight back to 0. I am suspecting a trip to the hospital is going

Re: [Elecraft] |KX2 Deaf on 7.0

Tony, The SWR of 25 tells me there is a problem with either your antenna or the ATU. Try it into a dummy load (do an ATU TUNE into the dummy load first). If you still get a high SWR with the dummy load, I would contact Elecraft support for assistance. 73, Don W3FPR On 12/25/2017 6:08 AM,

[Elecraft] |KX2 Deaf on 7.0

Hi All, My KX2 seems to be both deaf and mute on 40m. 80m is alive and well as are other bands. The KX2 is pre loved (I hope) and is fitted with the atu and clock. Any suggestions on where to start. I tried moving the antenna plug but no difference. When I press the atu button it displays 25-1 

Re: [Elecraft] KX2 Offset I.F.

For me a software-defined receiver is one where the demodulators and filters are implemented (defined) in software. Adding a synchronous AM detector is 100% software. We already have precise terms for receiver architectures: superhet, direct conversion, and TRF (no conversion). Direct sampling

Re: [Elecraft] KX2 Offset I.F.

Don, I'm not sure there IS an accepted definition of a "Full SDR" radio, but it's just a matter of semantics, anyway.  I just wanted to point out that the KX2 and KX3 use local oscillators and mixers to convert the RF to the IF, like any superhet.  From there, it's pure SDR.  (Perhaps aside f

Re: [Elecraft] KX2 as a remote front panel for another KX2, KX3, or K3S?

Jim, The critical timing is handled between the Pi and the radio. If network delays slow the display, that's generally not critical. You raised digital modes. I've spent a bunch of time ragchewing back in the day on AX.25. PSK-31 is good. My impression of FT-8 is that it isn't good for ra

Re: [Elecraft] KX2 as a remote front panel for another KX2, KX3, or K3S?

I’d really like to be able to use my KX2 to control my KX3. Is that an option or is only the K series the lucky one? No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced ! > On Dec 21, 2017, at 20:42, Wayne Burdick wrote: > >

Re: [Elecraft] KX2 as a remote front panel for another KX2, KX3, or K3S?

For data modes (PSK-32, FT-8, etc.) you don't need to move the radio. Raspbian supports VNC natively. There are VNC clients for just about every operating system including Android and Windows. Sit in the living room with your laptop or tablet, jump across your network using VNC to get to the

Re: [Elecraft] KX2 Offset I.F.

Scott, By your definition of an SDR, that may be true. Some SDRs today are direct sampling at the antenna, but think back to SDRs in the recent past when high frequency direct sampling was only achieved at great cost - the simplest example is the SoftRock 40 which used a quadrature mixer to ba

Re: [Elecraft] KX2 Offset I.F.

On 12/22/2017 11:37, Don Wilhelm wrote: Of course, the KX2 is *not* a superhet, it is a full SDR.  If the "IF" were at a higher frequency, the VFO would be further away from the signal frequency - by the frequency of the IF. I must disagree.  All the digital processing takes place after the

Re: [Elecraft] KX2 Offset I.F.

This sounds like a fun area to study, Thanks for putting me on the path. I will look up KK7B's work. KV4TT - Mike On Fri, Dec 22, 2017 at 12:37 PM, Don Wilhelm wrote: > Mike, > > Think of the 8kHz shift similar to a low frequency (8kHz) IF if your > thinking is along the lines of a superhet rec

Re: [Elecraft] KX2 Offset I.F.

Mike, Think of the 8kHz shift similar to a low frequency (8kHz) IF if your thinking is along the lines of a superhet receiver. Of course, the KX2 is *not* a superhet, it is a full SDR. If the "IF" were at a higher frequency, the VFO would be further away from the signal frequency - by the f

Re: [Elecraft] KX2 as a remote front panel for another KX2, KX3, or K3S?

Wayne, This sounds interesting. My station is located in a fourth bedroom, downstairs, at one end of the house. I use a K3/P3 mostly for CW operating and a KX3/PX3 connected to a Raspberry Pi for primarily for data modes. They share my meager array of wire antennae via two coax switches. With a

Re: [Elecraft] KX2 Offset I.F.

Hi Don, Thank you for the great explanation. I must have had the ATT on when I did the original power measurement (rough) on the SDR I tested again and this time I get: -77dBm - Preamp On -55dBm - Preamp Off -74dBm - ATT on Just relative differences with the absolutes unique to my setup of co

Re: [Elecraft] KX2 Offset I.F.

Mike, The KX2 is fully an SDR with the "computer" in the enclosure. Yes, it has a permanent 8kHz shift, so all the DSP operation is conducted at 8kHz (not audio), including the nulling and suppression. You are hearing the actual VFO freuency - it is 8kHz from the operating frequency of the

[Elecraft] KX2 Offset I.F.

Hello group, I received a new KX2 from Elecraft a few days ago and I am really enjoying the little GEM! As many of you already must know, the receiver performs brilliantly. I have been comparing with a couple of SDR receivers in the shack and the KX2 is preferred for weak signal reception in any

Re: [Elecraft] KX2 tunning knob

Hello Tim. Same way as the original one. Its only inserted on encoder axis. In original there is additional tightening piece of metal "ring", I printed my one in way that they tightly fits, its also light so they dont need any grub screw. pt., 22 gru 2017 o 13:30 użytkownik Tim N9PUZ napisał: >

Re: [Elecraft] KX2 tunning knob

Silly question because I am not at the same location as the radio... How is the tuning knob attached to the radio? Friction fit? Grub screw? This looks very nice Tomasz! Tim N9PUZ On Fri, Dec 22, 2017 at 4:14 AM, Tomasz Pabich wrote: > Because original knob for KX2 is quite useless I made new

[Elecraft] KX2 tunning knob

Because original knob for KX2 is quite useless I made new one. Inspiration was photo of FT-817 knob found somewhere on internet. It looks ergonomic so i made them from scratch. Few tests, and couple of versions convince me that this knob "make a job" :-) https://www.thingiverse.com/thing:2724151

[Elecraft] KX2 as a remote front panel for another KX2, KX3, or K3S?

A number of KX2 owners have asked whether they could use the rig as a “terminal” to control a remote radio. This may be possible to a limited degree. This can already be done with a K3, K3S, or K3/0-Mini. All three can do 100% control of a remote K3 or K3S, including 1:1 display mapping. On th

[Elecraft] KX2

My KX2 is Sold. Thank you for your responses. 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: htt

Re: [Elecraft] KX2 max output now 12 watts (experimental)

Wayne Please send file for the KX2 as I would like to try. Thanks 73 George wb5xx Sent from Mail for Windows 10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] KX2 max output now 12 watts (experimental)

; QRP-L; HF Pack Pack Subject: [Elecraft] KX2 max output now 12 watts (experimental) The latest KX2 field-test firmware allows power output to be set as high as 12 watts on 80 through 20 meters. (Max out is still 10 watts on 17-10 meters.) Supply voltage must be 12.8 V or higher on key-down. ~14 V

[Elecraft] KX2 max output now 12 watts (experimental)

The latest KX2 field-test firmware allows power output to be set as high as 12 watts on 80 through 20 meters. (Max out is still 10 watts on 17-10 meters.) Supply voltage must be 12.8 V or higher on key-down. ~14 V supply recommended. Yes, this is only about 1 dB, but it did help me snag XF1IM t

Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU

FWIW, the drift is proportional to frequency, so you should be seeing < 3 Hz on 20 meters. It’s < 2 Hz on my lab test unit on 20. Wayne N6KR http://www.elecraft.com > On Nov 24, 2017, at 4:23 PM, Edward R Cole wrote: > > I ran intensive frequency stability tests on my KX3 in 2014 afte

Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU

I ran intensive frequency stability tests on my KX3 in 2014 after getting it. Adding a VE3FMN heat sink and running the temp-compensation procedure maximum drift running JT65 on 6m showed +13-Hz drift in the first minute; no more than 10-Hz afterward. That is good enough for JT65 (but not sur

Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU)

I wonder how stable is the KX2 in digital modes? My KX3 with the temperature compensation carried out was inadequate when running wspr at 5 watts output. However, this was before Elecraft introduced the improved heat sink. Rob G3RCE On Nov 24, 2017 13:23, "Howard Hoyt" wrote: > Hi Barry, > > Whi

Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU)

Hi Barry, While using the KX2 in just about any digital mode above 5 W or so, we found the PA temp will reach thermal limit fairly quickly, which is why Elecraft rates the KX2 at 5 W in digital modes, and why we came up with an improved cooling solution.  (commercial content) Many owners who w

Re: [Elecraft] KX2 in FT8 mode - heat?

I think the problem only shows up if you're consistently transmitting (i.e., 12 sec every 30 sec). My use case is doing a SOTA activation in FT8 mode and having several callers waiting to work me so I could make 5 - 10 qso's in a row without gaps. That's when the KX2 seems to really heat up. It m

Re: [Elecraft] KX2 in FT8 mode - heat?

 Barry,     I run 10w through my KX2 with the back leg down to allow for airflow and don't find heat to be an issue. I'm not TXing all that much, I'm a hunt & pounce type with occasional CQing. In the summer I ran a small fan over it to help a bit. No issues for me. I normally see it get to t

[Elecraft] KX2 in FT8 mode - heat?

I'd appreciate hearing from others who are using their KX2 in FT8 mode in terms of your experience with power output and acceptable PA heat level. The reason I ask is that I'm running 5W on 40M with the rear foot down (rig tilted up) and I'm seeing the PA temp reach 60deg C in ordinary qso'ing (i.e

Re: [Elecraft] [KX2] Cannot turn off switch cw tones

Stephen, That sounds like a bug that I didn’t catch. I’ll get on it right away. Meanwhile, you might try powering up in SSB mode, then changing the SW setting, then turning power off. Let me know if this works. Thanks, Wayne N6KR > On Nov 20, 2017, at 11:42 AM, Stephen Prior wrote: > > I w

Re: [Elecraft] [KX2] Cannot turn off switch cw tones

Stephen, I do not see anything definitive saying how to turn it off, but on the assumption that it might be a toggle, hold down APF, Rate, and A/B while powering on again. If it turns off, that is good, but if it is still present, you will have to wait until Wayne can tell us how to turn it

[Elecraft] [KX2] Cannot turn off switch cw tones

I was playing with the new features in 2.81 and enabled the tones by holding down APF (plus Rate and A/B) at start-up. All works great, the double tap on PTT gives the freq. etc. However, having established that it works, I'm now stuck in the mode. I can go into Setup and turn SW tones to off bu

Re: [Elecraft] KX2 / KX3 Firmware

You are right, Grant. Only this mail landed in my KX2 folder that normally when read, is emptied for I have no KX2... You typed inadvertently XK3 in the subject line. I have created filters that scan for types of Elecraft products and sorts them in the proper folders. This mail from Wayne, h

[Elecraft] KX2, N1MM+ and WKUSB

I'm having problems setting up my KX2 with N1MM+ for the upcoming ARRL CW Sweepstakes contest.  Can only get the WinKey to key using VFO B.  N1MM+ thinks my KX2 is in Split mode when it is not, and vice versa. All working correctly using my K3, and the K3 will be my default if I can't get the

[Elecraft] KX2/XK3 Firmware

There was discussion back in September about the features (one specifically related to opposite sideband suppression) in KX2 beta 2.79. At least one comment implied these features/improvements were going to provided “soon” for the KX3. Any indication if/when these updates will be provided in a

Re: [Elecraft] KX2 talk at Foothill ARS, Oct. 27th

Hi Wayne. Will your presentation be made available on-line later on? Thanks & 73, Yngvi TF3Y On Thu, Oct 26, 2017 at 2:55 AM, Wayne Burdick wrote: > Hi all, > > I’ll be speaking about the KX2 at the FARS meeting this Friday night. > Among other topics, I’ll cover the KX2’s ancestral lineage (sha

[Elecraft] KX2 talk at Foothill ARS, Oct. 27th

Hi all, I’ll be speaking about the KX2 at the FARS meeting this Friday night. Among other topics, I’ll cover the KX2’s ancestral lineage (shamelessly cherry-picked QRP rigs of yore), its technology and design goals, field applications, and lightweight antennas. I’ll be bringing a prototype of t

Re: [Elecraft] KX2 Batt

Yes, I meant separate batteries, NOT the Elecraft battery. I should have made that clear. One possibility I've considered to reduce weight is a three cell battery holder for AA Li-ion batteries, good for about 800 mAh, as I have used with the KX1. With the KX2, they would be good for about 2

Re: [Elecraft] KX2 Batt

[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Sunday, October 15, 2017 2:05 PM To: Tony G6GLP ; elecraft@mailman.qth.net Subject: Re: [Elecraft] KX2 Batt Tony, The battery must be removed for charging. The charger and battery are from the same manufacturer and I figure they

Re: [Elecraft] KX2 Batt

Scott, The stock battery pack is sealed as one unit, not 3 individual cells. Perhaps you are talking about a possible alternative battery supply and not the one sold by Elecraft. 73, Don W3FPR On 10/15/2017 3:59 PM, K9MA wrote: One possibility would be to get a 3-cell battery holder, and char

Re: [Elecraft] KX2 Batt

Tony, Lithium Ion is a different chemistry than li-po. I would choose to be safe rather than sorry and buy both the battery and charger. If you are going to be operating portable over a long weekend, consider a 2nd battery. Yes, it can be powered from an external power source through the 2.1m

Re: [Elecraft] KX2 Batt

One possibility would be to get a 3-cell battery holder, and charge the cells independently.  A charger which charges several cells simultaneously, but independently, would assure balance.  Unless you use smaller cells, however, the will have to be external. 73, Scott K9MA On 10/15/2017 14:17,

Re: [Elecraft] KX2 Batt

Hi Don, I am sure they have done it correctly but I have a number of different charges for li-po and other type batts so was just thinking of either not getting the charger or just providing another batt as it only seems to connect via 2wire connection for powering the rig. 73 de g6glp On 1

Re: [Elecraft] KX2 Batt

Tony, The battery must be removed for charging. The charger and battery are from the same manufacturer and I figure they have "done it right" whether that be a balancing circuit in the battery pack or some device in the charger. 73, Don W3FPR On 10/15/2017 2:36 PM, Tony G6GLP wrote: Hi All,

[Elecraft] KX2 Batt

Hi All, Decision made  now and I am going for the KX2 but now I have a question about the Batt Li-ion. The charger looks like it charges down the power lead and I am wondering how the balancing is done. Does the pack have its own balancing circuit or what. 73 de Tony G6GLP --- This email has

Re: [Elecraft] KX2 <> KX3

day, October 11, 2017 7:35 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KX2 <> KX3 Hi All, I have for mobile / portable a K3 of the old vintage that I am thinking of passing on and getting either a KX2 or KX3. I dont need the 100w so either should be ok but I wonder which any of you

Re: [Elecraft] KX2 <> KX3

The KX2 is smaller and lighter. The KX3 covers more bands. Both are harder to switch between SSB and Data modes than the K3. You make the call. 73 Bill AE6JV On 10/11/17 at 7:35 AM, g6...@strus.co.uk (Tony G6GLP) wrote: I have for mobile / portable a K3 of the old vintage that I am thinking

Re: [Elecraft] KX2 <> KX3

nt: Wednesday, October 11, 2017 3:35 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KX2 <> KX3 Hi All, I have for mobile / portable a K3 of the old vintage that I am thinking of passing on and getting either a KX2 or KX3. I dont need the 100w so either should be ok but I wonder which any of

[Elecraft] KX2 <> KX3

Hi All, I have for mobile / portable a K3 of the old vintage that I am thinking of passing on and getting either a KX2 or KX3. I dont need the 100w so either should be ok but I wonder which any of you more active outsiders would recommend. Also I notice Elecraft gear sells very quickly in the

[Elecraft] KX2 remote control via the MH3 mic: ready for mobile/portable testing

Hi all, We’re looking for volunteers to test new firmware that allows extended control of the KX2 via an MH3 mic. This feature enables “HF Pack Lite” operation, where the radio is inside a backpack with a whip attached. It’s also useful for mobile operation since it allows eyes-free radio contr

Re: [Elecraft] KX2 ATU per Band Bypass?

For me it's more about which antenna I'm using than which band I'm on. I've assigned one of the PF keys to the ATU MD switch to make it easier. 73, Brian, K0DTJ > On Sep 28, 2017, at 09:12, K9MA wrote: > It would be useful if the ATU auto/bypass status were stored on a per band > basis. Doe

Re: [Elecraft] KX2 wanted

No name, no call ... are you -really- expecting a reply? K0PP On Sep 29, 2017 11:06, wrote: __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mai

[Elecraft] KX2 wanted

__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http

[Elecraft] KX2 for sale

I have a very lightly used KX2 that I would like to sell. I purchased it new from Elecraft. The SN is 1033. It is the basic radio and does not have batteries or the internal ATU (I have an Elecraft T1 tuner that I use for all of my QRP rigs). It works properly and is in almost new condition. I a

[Elecraft] KX2 ATU per Band Bypass?

I use my KX2 with an external tuner on some bands with my EFHW, and with the internal ATU on others.  I really don't want the internal ATU to be enabled with the external tuner, as they could end up "fighting" each other while I'm tuning.  However, it's easy to forget to switch the ATU in or ou

Re: [Elecraft] [KX2] Battery Charger

Thanks Don, just checking. 73, Scott N1SER On Mon, Sep 25, 2017 at 4:57 PM, Don Wilhelm wrote: > Scott, > > The Tenergy battery charger is just for charging the battery, not for > running the radio. > The PAE power supply is not for charging the battery, but will run the > radio just fine. > >

Re: [Elecraft] [KX2] Battery Charger

Scott, The Tenergy battery charger is just for charging the battery, not for running the radio. The PAE power supply is not for charging the battery, but will run the radio just fine. Lithium batteries are to be treated with care. If abused, the can create fires or explosions. You have sur

[Elecraft] [KX2] Battery Charger

Can the Tenergy battery charger (from Elecraft) that is used for the KX2 be used to power the KX2 like the ProAudio Engineering unit? 73 -- Scott Russell, N1SER President, Beaches Amateur Radio Society (BARS) http://www.kb4ars.net/ __ E

Re: [Elecraft] KX2 latest beta FW? (and spkr issue)

Actually, the latest beta is 2.79, it just has not been made public yet. From a post by Wayne on the 9th: KX2 firmware rev. 2.79 has several minor improvements, including: - CW sidetone volume can be set much lower - Auto-power-off timer range is now 5 to 100 minutes (was 3-20 minutes) - Filt

[Elecraft] KX2 latest beta FW? (and spkr issue)

I haven't seen much (if any) discussion about the latest KX2 beta firmware (MCU 2.77 / DSP 1.50, May 26, 2017). I generally don't try beta firmware unless I have a surplus device to try it on (or unless I really don't care if device I'm trying on works). Who else, outside of Elecraft employees, i

Re: [Elecraft] KX2 built in mic

Yes that’s it! I’m so used to pressing and holding the XMIT as I do that to tune my magloop (LNR). You can’t use the autotunes with a loop. Hopefully the next time I decide to go SSB I’ll remember! By the way-a loop and the KX2 make a great portable combination. The new addition of the CW loggi

Re: [Elecraft] KX2 built in mic

Dan, You may have been pressing and holding XMIT, which goes into TUNE mode (CW). You just need to *tap* XMIT to go into voice transmit, then tap it again to exit. It doesn’t act like a PTT switch. 73, Wayne N6KR > On Sep 23, 2017, at 10:52 PM, Dan Presley wrote: > > I was doing the SOTA ‘S

Re: [Elecraft] KX2 built in mic

Sounds like you might have had SPLIT activatedwith CW mode on VFO B. On 9/23/2017 11:52 PM, Dan Presley wrote: I was doing the SOTA ‘S2S’ summit to summit party today from Oregon, and had the KX2 going. I almost always do CW, but with little success I switched to SSB as there were a few guys o

[Elecraft] KX2 built in mic

I was doing the SOTA ‘S2S’ summit to summit party today from Oregon, and had the KX2 going. I almost always do CW, but with little success I switched to SSB as there were a few guys on. Don’t believe I’ve ever made a voice Q with this rig.. Of course I forgot the mic, but I figured I could use t

Re: [Elecraft] KX2/KXPA100 Drive Power

Stan, Yes, check the DC Power thru the coax. If you see a significant voltage drop, the first thing to look for is a bad shield connection between the shield and connectors. Right now, you have too many variables in the 'equation' - follow the steps below to find out what is working and wha

Re: [Elecraft] KX2/KXPA100 Drive Power

Aaron, my SWR is being reported by the KX2 as below 1.2:1 at all times; usually 1:1. I'm using a window line fed doublet through an SGC-231 autocoupler.  This situation occurs on all HF bands.   I do not have either the KX2 internal ATU nor do I have the KXPA100 ATU.  Now you've got me wond

Re: [Elecraft] KX2/KXPA100 Drive Power

Hi Stan, This sounds like the amp is folding back it's power. I encountered something similar on my KX3/KXPA100 when I had an issue with my antenna and was experiencing excessive SWR. Check the SWR indicators (both devices). 73, Aaron KK6ZDB On Tue, Sep 19, 2017, 20:12 stan levandowski wrote:

[Elecraft] KX2/KXPA100 Drive Power

Since I'm basically a QRP op and rarely use more than 25 watts, I guess I didn't notice when this "problem" actually began. So here's the issue: My KX2 will show the power I've set with the knob precisely, right up to 110 watts.  However, my KXPA100's green LEDs seem to be about 20 watts lower

Re: [Elecraft] KX2/3 DSP AM Demodulation

Scott, The fact that it produces I and Q outputs from the quadrature mixer puts it in the class of SDR transceivers, which are a different breed than Direct Conversion. You are free to call it what you will, but the rest of the world refers to that as an SDR. The 8kHz shift allows the opposi

Re: [Elecraft] KX2/3 DSP AM Demodulation

Don, OK, I'll turn that around, and ask why the KX2 does NOT convert directly to baseband, rather than to 8 kHz?  You said something about AM signals breaking in.  What's that all about? Call it what you will, but I still maintain that a receiver, like the KX3, which converts directly to bas

Re: [Elecraft] KX2/3 DSP AM Demodulation

Your KX2 isn't really a DC receiver, it has an 8KHz IF which is then digitized and demodulated in a digital computer executing the demod algorithms to produce baseband output. But the original question was simply "what is direct conversion?" and the answer is, you convert the incoming signal t

Re: [Elecraft] KX2/3 DSP AM Demodulation

Scott, The advantage of using the baseband IF is that one can use a baseband filter to provide a roofing filter.  Such filters get more complex if used at 8kHz. It also allows RIT/XIT excursion that is equal on each side of the carrier frequency.  In the KX3, it is +/- 15kHz, while with the 8k

Re: [Elecraft] KX2/3 DSP AM Demodulation

It's so the roofing filter option can be used (using weaver demodulation). 73 de Matt VK2RQ > On 10 Sep 2017, at 1:39 pm, K9MA wrote: > >> On 9/9/2017 22:13, Don Wilhelm wrote: >> The KX2/3 does not convert directly to audio. >> It converts the RF to "baseband" which is a zero frequency IF (in

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