Re: [Elecraft] [K3] K3 2-tone IMD test.

Alex, Can you please be specific about which HW mods you installed? Are they all published by Elecraft? I don't recall any 1st and 2nd Mixer mods being published. If not, can you please share them? Are the software mods in the current beta FW, i.e. 3.30? Thanks. Chuck, AE4CW Alexander

[Elecraft] [K3] RE: K3 2-tone IMD test.

Alex, Thank you! I am studying your mods and will report back if I decide to do them. Chuck, AE4CW _ From: Alexander Ponomarenko-5 (via Nabble) [mailto:ml-user+44544-1724029...@n2.nabble.com] Sent: Monday, September 28, 2009 12:50 PM To: Chuck - AE4CW Subject: Re: K3 2-tone

[Elecraft] ATU TUNE does not work in DATA A Split mode

the same way. FW is 03.41. Thanks. P.S. ATU TUNE Split mode works FB in AFSK A and FSK D. Split is N/A in PSK D. Chuck, AE4CW -- View this message in context: http://n2.nabble.com/ATU-TUNE-does-not-work-in-DATA-A-Split-mode-tp3785489p3785489.html Sent from the Elecraft mailing list archive

Re: [Elecraft] K3 TX light on

, I'd like to reopen the issue Elecraft. Chuck, AE4CW Gene-7 wrote: On 11/25/09 I downloaded latest firmware, MCU 03.63 and DSP1 02.46. While using HRD/DM780 for PSK31 I now notice the TX light stays on at the end of a transmission. The light will not go out and the K3 will not go

[Elecraft] K3 and Ameritron QSK-5 Connections and Settings

connection configurations you are using or have tried? 4) Any connection configurations to avoid? 5) What CONFIG: TX DLY setting are you using (8 ms default)? For reference my amplifier is an AL-80B. Thanks for any feedback! Chuck, AE4CW -- View this message in context: http://n2.nabble.com/K3

[Elecraft] [K3] RE: K3 and Ameritron QSK-5 Connections and Settings

Paul, Thanks for the lead to N6MW's PowerPoint. That has been invaluable! -- Chuck, AE4CW _ From: P.B. Christensen [via Elecraft] [mailto:ml-node+4077199-1430942...@n2.nabble.com] Sent: Friday, November 27, 2009 2:35 PM To: Chuck - AE4CW Subject: Re: [Elecraft] K3 and Ameritron

[Elecraft] K3: Erratic Power on 160 and 80

but with no improvement on 160M. Finally I ran the normal Synth cal again which seems to have resolved the problem on both 160 and 80. Can anyone explain what is happening here, and why the Synth calibration seems to be so sensitive in this regard? Appreciate any insight anyone has. Thanks! Chuck, AE4CW

Re: [Elecraft] Condx

. The antenna was a Cushcraft R5 vertical, not the strongest, and 100 watts in an S6-7 noise environment. Chuck, AE4CW -- View this message in context: http://n2.nabble.com/Condx-tp2151636p2160655.html Sent from the Elecraft mailing list archive at Nabble.com

Re: [Elecraft] K3/100 and the PSU (and Power Pole Repair)

connector blades inside, 2) mating a new pair of connector, 3) scraping off a small protusion on the positive connector to allow the assembly to fit in the rear panel opening, and 4) sliding the assembly over the connector blades. Perhaps this will help if someone else encounters this problem. Chuck

Re: [Elecraft] [HAM] Cecil Moore's no-tuner ANT

Frank, I would be interested in the details on your switching arrangement, including the relays and power level you are using. Thanks, Chuck, AE4CW If there's serious interest in it, I can draw up some info on what I did and make it available publicly. 73, Frank PA4N -- View

Re: [Elecraft] OT: J and -31 mix toroids

-reference to the correct part on Mouser. Chuck, AE4CW Hi Svend, They don't list them, and I suspect the ones they purchased are for their Balun/Unun products. I'm going to contact Fair Rite directly... Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO

Re: [Elecraft] [K3] K3 beta firmware revision 3.11 now available - Manual Update?

I, too, would like to know the estimated plan for an updated manual. I'd like to get a fresh one printed at Kinkos/Fedex, but will wait if an update is expected reasonably soon. Chuck, AE4CW When will a new printed manual that incorporates all of the 3.11/2.15 changes be available? Thank

Re: [Elecraft] Field Day

to both! Chuck, AE4CW Steve Ward wrote: W7OTV will have at least two and possibly more K3s on the air. WS7L and several others will be working CW, while I (AD7OG) will be running digital (at least PSK31 and RTTY) on mine. At present the SSB stations plan to use lesser rigs :-) Steve

Re: [Elecraft] HD15 Y for splitting K3 ACC

Iain, thanks for this info; finding these with all lines independently run is difficult. Is anyone offering a breakout box for the K3 accessory connector? Home-brewing is the obvious answer, but I thought someone might have come up with a nifty packaged solution. Chuck, AE4CW Iain

[Elecraft] K3 Firmware Bug? Power Reduction After ATU TUNE

if others are experiencing the same problem. Chuck, AE4CW -- View this message in context: http://n2.nabble.com/K3-Firmware-Bug--Power-Reduction-After-ATU-TUNE-tp534144p534144.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft

Re: [K3] [Elecraft] BCB sensitivity

detailed understanding. Or, you could also look at a program like TLW (transmission line wizard) that will calculate and show you a picture of the correct values for a low-pass L ATU with any given values of antenna impedances. Hope this helps! 73, Chuck, AE4CW Vic K2VCO wrote: [EMAIL

Re: [Elecraft] K3 - Strange problem on 10 Meter SSB with power out

step forward, so we can hope for continured improvement across all the bands. Chuck, AE4CW Lyle Johnson wrote: If you experience this problem (low output on SSB), please check if the other sideband works OK, and note if you are using the 2.7 kHz 5-pole filter or the 8-pole 2.8 kHz filter

Re: [Elecraft] K3 Headphone Jack

Barry, I used a trim washer (very thin) from a spare headphone jack I had laying around to fill the gap. As I recall it was about 0.018 thick and was perfect. The knurled nut tightened down without deforming the front panel at all. Chuck, AE4CW Barry Simpson wrote: I am progressing quite

Re: [Elecraft] balanced tuner

://www.iceradioproducts.com/impulse1.html#2 http://www.iceradioproducts.com/impulse1.html#2 Chuck, AE4CW quote author=David Wilburn A very interesting read, I have a couple of questions about practical considerations. I have not found a way to safety ground ladder line and run it into the house. After taking

Re: [K3] [Elecraft] Loud audio blast on power up

I had this problem long ago; a reload of the firmware AND the data tables cured it. The trick was the data tables. Thanks to Gary at Elecraft. Chuck, AE4CW Monty Shultes wrote: Mike - I have a similar phenomenon, but it's a soft blast, a burst of low audio as the radio turns

Re: [K3] [Elecraft] Loud audio blast on power up

back in March. Hopefully, it will work for your problem now. Chuck, AE4CW Chuck- I have the same problem. It started with V2.57. How do I reload data tables ? Thanks Shep - W2BSB I had this problem long ago; a reload of the firmware AND the data tables cured it. The trick was the data tables

Re: [Elecraft] Desk Mike for the K3 Question

-quality set-up that outperforms the name ham brand for less than half the price, particularly combined with the K3's TX EQ which can tailor the response as you like for rag-chews or serious DX. Chuck, AE4CW Ladies n Gents I use my Heil Headphones HC-4 most of the time for SSB operation

Re: [Elecraft] Desk Mike for the K3 Question

headset electret mic can also work very well and cost next to nothing! Chuck, AE4CW Jim Brown-10 wrote: On Thu, 27 Nov 2008 15:57:11 -0800 (PST), Chuck - AE4CW wrote: The output is XLR low-impedance balanced, so you will need an in-line transformer to convert to the K3's unbalanced input

[Elecraft] K3: TX EQ and COMP of Line IN Audio in SSB Mode

and compress them. Thanks! Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-TX-EQ-and-COMP-of-Line-IN-Audio-in-SSB-Mode-tp5209752p5209752.html Sent from the Elecraft mailing list archive at Nabble.com

Re: [Elecraft] (K-3) with Yaesu FL-2100B Amplifier

the K3 as the amp keying voltage is not compatible with the K3. I used a simple 12V reed relay powered from the K3 12V RCA jack. Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/Re-K-3-with-Yaesu-FL-2100B-Amplifier-tp5429724p5437690.html Sent from the [K3

Re: [Elecraft] Externmal ATU

/support.php?productid=MFJ-998 Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/Externmal-ATU-tp5454748p5471087.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http

Re: [Elecraft] BL2 choking Impedence measurements?

turns of smaller cables including RG-8X. Have you tried this one? Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/BL2-choking-Impedence-measurements-tp4686857p5480968.html Sent from the [MM] mailing list archive at Nabble.com

Re: [Elecraft] Settings for CM500 on K3?

Doc, What external PEP power meter are you using? Is it possible you have it set to read average power vs. peak power? Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/Settings-for-CM500-on-K3-tp5528641p5530808.html Sent from the Elecraft mailing list

Re: [Elecraft] K3 on AM with AL811H amplifier

is to tune with drive set to produce the maximum PEP that will be produced by the transmitted envelope and then slightly over-tune (less capacitance) the load control. Chuck, AE4CW Don´t know how much the AL80B can handle but 1600W PEP sounds to be too much. The AL-80B is a single 3-500Z

Re: [Elecraft] CW skimmer setup question

about other tabs at this moment in time. Just wanted to see if I am on the right track with those who have this program up and running with their K3 Thanks for your time Mike VE3WDM - --- Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/CW-skimmer-setup

[Elecraft] KPA500 Z Bracket Top Cover

is flush with the rear panel in the center...no protrusion at all. This is a cosmetic issue but does detract a bit for the fit and finish of the rest of the KPA500 and the K3. Has anyone else seen this issue? Thought I would ask before calling home. --- Chuck, AE4CW -- View this message

Re: [Elecraft] KPA500 Z Bracket Top Cover

is the main culprit. Once again, this is NOT a big deal but just not quite up the the fit and finish standard that Elecraft is well known for. I'll give the folks in CA a call next week to see what advice they have. --- Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com

Re: [Elecraft] KPA-500 AM Performance?

is about 125 watts and peak power hits around 500 watts or a little less. Just being extra cautious about the K3's low power amp I suppose! --- Chuck, AE4CW - --- Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA-500-AM-Performance-tp7570084p7570115

Re: [Elecraft] ACC Y cable

The specification page for this Y cable has a Note 3 that says that there is no pin 9 on the male connector. Can anyone confirm this is true? This is the BAND2 data line. --- Chuck, AE4CW - --- Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/ACC-Y-cable

Re: [Elecraft] Shorter DB15/DB15 cable from KAT to KPA

If I recall correctly (traveling to Orlando), I use the Y cable provided by Elecraft to connect the KAT500 and the KPA500 which are stacked. One connector of the Y remains unconnected. I can provide more detail on Sunday if needed. --- Chuck, AE4CW - --- Chuck, AE4CW -- View this message

[Elecraft] Controlled Envelope Single Sideband CESS)

Elecraft transceivers? http://www.arrl.org/files/file/QEX_Next_Issue/2014/Nov-Dec_2014/Hershberger_QEX_11_14.pdf http://www.arrl.org/files/file/QEX_Next_Issue/2014/Nov-Dec_2014/Hershberger_QEX_11_14.pdf ---Chuck, AE4CW - --- Chuck, AE4CW -- View this message in context: http://elecraft

Re: [Elecraft] K3EXREF question

Elecraft recently posted a modification to the K3REF to correct a problem caused by the K3EXREF. Though specific to frequency changes noticeable on on 2M and 6M, I suspect it may directly relate to this discussion. http://www.elecraft.com/K3/mods/K3EXREF%20freq%20shift%20fix.pdf --- Chuck, AE4CW

Re: [Elecraft] 80 Meter loop question

and only need a tuner on 80M. --- Chuck, AE4CW - --- Chuck, AE4CW -- View this message in context: http://elecraft.365791.n2.nabble.com/80-Meter-loop-question-tp7615830p7615851.html Sent from the Elecraft mailing list archive at Nabble.com

Re: [Elecraft] OT A/C RFI

are usually a burst of very closely spaced carriers (a few hertz apart) spaced about 18KHz apart. --- Chuck, AE4CW -Original Message- From: Clay Autery [mailto:k...@montac.com] Sent: Wednesday, July 19, 2017 10:53:AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] OT A/C RFI H

Re: [Elecraft] K3 -> Very Early Acom 2000A

cally retune the amp for the new band segment (no SW needed). --- Chuck, AE4CW -Original Message- From: William Liporace Sent: Sunday, July 08, 2018 02:13:PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 -> Very Early Acom 2000A Hi Folks, I am looking for instructions of tips on