Re: [Elecraft] N-GEN replacement

[Brian Hunt]

I built a QRPGuys noise bridge a while back. Fun kit. 

https://qrpguys.com/test-equipment
 73,
Brian, K0DTJ

> On Mar 30, 2024, at 13:43, Bruce Rosen  wrote:
> 
> I see that Elecraft no longer sells the N-GEN wide band noise generator.
> My N-GEN, which I built in 2010, seems to function no longer, so I'm
> looking for a suitable replacement.  Kit form is fine.
> 
> Any suggestions would be appreciated.
> 
> - Bruce K1FFX
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Re: [Elecraft] P3

[Brian Hunt]

Hi Jim,
I’ve discovered that it’s easier to see a very weak signal on the waterfall 
than in the amplitude plot. Setting the SVGA screen for 25% spectrum and 75% 
waterfall gives lots of space to see dim traces. You may have to adjust the 
threshold a bit. 

73,
Brian, K0DTJ

> On Dec 17, 2023, at 12:13, Fred Jensen  wrote:
> 
> Can't speak to the K3s, but the K3 required a modification to the 1st IF [8 
> MHz] gain for my P3 to show weaker signals.  It was just a resistor change.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
> Jim Murray via Elecraft wrote on 12/17/2023 12:05 PM:
>> Hello all,  Having acquired a fully loaded K3s fairly recently I am behind 
>> the curve of those fortunate enough to have a K4.  Its taken several weeks 
>> to get a decent handle on the K3s and now on to the P3.  I have all the 
>> manuals including Fred Cadys K3s and P3.  I find the K3s to be excellent and 
>> pretty remarkable compared to the many other transceivers I've owned over 
>> nearly 50 years.  The P3 has the vga board and is connected up.  All is well 
>> Except;  weak signals do not show up on the P3.  I can hear a rather weak 
>> signal but nothing at that point on the P3.  My thought is at this point the 
>> P3 is not doing me much good looking for a weak dx signal.  I have to think 
>> I have something not set up right etc..  Any help on what I'm missing would 
>> be appreciated.Thanks,Jimk2hn
>> 
> 
> 
> 
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Re: [Elecraft] K3 - Erratic receive

[Brian Hunt]

According to the schematics, those two double pots on the front panel are 
merely voltage dividers. They provide 0 to 5v signals to the front panel MCU 
which controls the function, eg: AF_GAIN. It’s possible the pot has developed a 
dropout right at the point where you usually set the AF level. Maybe turning 
the pot stop to stop a half dozen times will improve it??  Worth a try. 

73,
Brian, K0DTJ

> On Nov 29, 2023, at 12:12, Pete Smith N4ZR  wrote:
> 
> My 2400-serial number K3 has begun to have a sporadic receive problem, which 
> has gotten much worse recently.  It's really weird.
> 
> What happens is this - the receiver sporadically loses most of its audio 
> output level, until I move the AF pot a couple of degrees either way, at 
> which point it immediately restores the audio.  Often, but not always, this 
> occurs right after a transmission (on CW), so I was initially suspecting a 
> failing relay, but the way it responds to a minute change in the AF level 
> setting makes me think something subtler.  Any ideas?
> 
> --
> 73, Pete N4ZR
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Re: [Elecraft] K3 Filters

[Brian Hunt]

There was a time when one could email Elecraft support with the K3 serial 
number and they would send the factory Config file. Probably not 100% of the 
solution but it would be a start. 

73,
Brian, K0DTJ 

> On Oct 17, 2023, at 09:05, W3FPR  wrote:
> 
> Jim,
> 
> It is doubtful that will work if the K3 has been set to factory defaults by 
> EEINIT.
> 
> 73,
> Don W3FPR
> 
>> On 10/17/2023 11:59 AM, Jim McCook wrote:
>> Dave,
>> 
>> Open the K3 Utility and click on Calibration.  Scroll down to Configure 
>> Crystal Filters.  The top line shows the various bandwidths of the installed 
>> filters.  You can see the big picture there with the checked boxes.
>>  Jim W6YA
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Re: [Elecraft] Manual For KX2 S/N 01888?

[Brian Hunt]

I bought my KX2 #11xx in November 2016, to give you a data point on age. In 
addition to Mike’s info, I’d suggest downloading the firmware release notes 
from the website. Lots of upgrade info not included in the printed manual. 

Hope you enjoy your KX2; it’s a gem. 

73,
Brian, K0DTJ

> On Jul 5, 2023, at 04:56, KJ  wrote:
> 
> 
> Hello all,
> Does anyone know just what manual (year and revision) would apply to KX2 S/N 
> 01888?
> I bought this used and the actual age isn't know.
> Thanks! Ken, W2GIW
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Re: [Elecraft] Elecraft CW Net Report

[Brian Hunt]

Kevin,
You were good on 20 meters with some deep QSB but OK copy. Then we got whacked 
by the sun pretty hard between nets and the story changed on 40 meters. I could 
hear you at first but your signal was below the noise peaks so your CW was 
getting chopped up and nearly uncopyable. 

Hoping for better next week! 

73,
Brian, K0DTJ

> On Jul 2, 2023, at 17:26, kevin  wrote:
> 
> Good Evening,
> 
>Twenty meters was fairly quiet but minimally productive. There was little 
> thunder storm noise on either band.  That should give me a hint.  On forty 
> meters Dwight, WM5F mentioned a solar storm.  When I signed off I came in 
> here to check.  Sure enough that roaring sound drove his normally S9 signal 
> close to the noise.  We are also experiencing D layer absorption.  Good test 
> of propagation :)  https://solarham.net/ gave me a map.
> 
>Birding difficulties between nets: first a male Golden Crowned Kinglet, 
> then an immature female Wilson's Warbler, followed by an immature Yellow 
> Warbler.  Next an immature Golden Crowned Kinglet.  Argh!!  I am being tested.
> 
> 
>   On 14050.5 kHz at 2200z:
> 
> K0DTJ - Brian - CA
> 
> K6XK - Roy - IA
> 
> 
>   On 7047.5 kHz at z:
> 
> WM5F - Dwight - ID
> 
> 
> Until next week 73,
> 
>Kevin.  KD5ONS
> 
> 
> 
> 
> 
> -
> 
> 
> 
> 
> How to raise e to a matrix power: https://www.youtube.com/watch?v=O85OWBJ2ayo
> 
> https://www.3blue1brown.com/
> 
> https://www.quantamagazine.org/flow-proof-helps-mathematicians-find-stability-in-chaos-20230615/
> 
> Write an Eulerian fluid simulator: https://www.youtube.com/watch?v=iKAVRgIrUOU
> 
> 
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Re: [Elecraft] Power spike early K3

[Brian Hunt]

I had a similar problem and traced it to voltage sag under load at the K3. The 
power supply was good under load but there was too much loss in the stock cable 
which was wired directly to the PS. I replaced it with a heavier, shorter 
cable. I found that I had to run the TX gain calibration twice in a row to get 
it right. It’s been fine since. 

GL&73,
Brian, K0DTJ

> On May 20, 2023, at 00:50, Mikael Larsmark  wrote:
> 
> Hi,
> 
> We have an early serial K3 which has got an issue with power spikes. I have
> done a TX gain calibration without it making a difference. The spike
> happens mainly when you have changed to a new band and during the first
> transmission. After that the spike is a lot smaller and not much of an
> issue.
> 
> Anybody have any ideas of what this could be because of? It kind of makes
> it impossible to run a solid state amplifier on the radio and probably not
> good for the tube amplifiers either.
> 
> /Mike, SJ2W
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Re: [Elecraft] Keying the K3s

[Brian Hunt]

I’d like clarification on this also. I don’t run an amp but I’ve run my K3 for 
years at 5 watts for QRP events without issue. My TUN PWR is set to 7 watts to 
keep my remote tuner and LPA happy. 

The manual states that to manually initiate a TX GAIN calibration to set TUN 
PWR to exactly 5 (or 50) watts and hold the TUNE button. I can imagine that 
accidentally doing so into an antenna rather than a 50 Ohm dummy load could 
really mess up the TX GAIN calibration. 

Thoughts?

73, Brian, K0DTJ

> On Jan 24, 2023, at 09:20, Lee Hiers  wrote:
> 
> How would one search the archives for this info?
> 
> Is this only the K3S, or does it also include K3?  How about a K3/10?
> 
> And you're saying one should never transmit with the transmitter set to 5W
> (or 50W)?
> 
> I do drive an Alpha 8410 with my K3/10 -  and I've probably done so at 5W
> out of the K3/10, although normally I'm using 12W.
> 
> I would appreciate a link to something that indicates this is a bad thing
> to do.
> 
> 73 de Lee, AA4GA
> 
> 
>> On Tue, Jan 24, 2023 at 10:57 AM Jim McCook  wrote:
>> 
>> Dave,
>> 
>> You should _never_ key the K3s at 5w (or 50w)!  It can disrupt the TX
>> GAIN settings and create huge power spikes, which can be a real problem
>> if you use an amplifier.  Just use 6w or 4w or 5.5w, etc.  You can
>> confirm this with Elecraft, who will tell you the same thing.   Check
>> previous threads; it has been discussed before.  73, Jim W6YA
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Re: [Elecraft] K3S Noise Reduction

[Brian Hunt]

There was a very good description of the K3 NR written by Lyle, the DSP 
designer for Elecraft. It may be on their website. 

Basically, as I understand it, the NR is designed to work against random noise. 
Noise that has a correlated component, like line noise, it doesn’t address as 
well. 

I’ve found that, properly adjusted, it works very well on CW but using it on 
SSB created unacceptable “mush” on the audio. 

Hopefully the spectral subtraction NR when available on the K4 will be much 
better. 

73,
Brian, K0DTJ

> On Nov 6, 2022, at 17:34, Richard  wrote:
> 
> Is there ANY way to make the NR feature work worth a damn? In general, when 
> I turn it on, the audio level drops to almost nothing, and none of the 
> Adjustment setting do much of anything.
> 
> My other two radios, an old Icom and a new Icom, both have very effective NR 
> features.
> 
> Is this a design heartbreak, or is my radio looking at ANOTHER trip to the 
> factory?
> 
> Firmware # UC 05.67
> 
> Cheers.
> 
> Richard Kunc
> W4KBX
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Re: [Elecraft] Recommendation for Microphone for K3s?

[Brian Hunt]

Like you I’m 99% CW OP but for years I’ve used inexpensive (~$20) computer 
headsets with my K3.  Light weight and don’t clamp your head. Comfortable to 
wear for hours. They’re a bit hard to find these days because most are 
Bluetooth. The K3 TXEQ can make it sound good. 

73,
Brian, K0DTJ

> On Nov 1, 2022, at 14:13, Bernie and Cheryl  wrote:
> 
> Dear Folks:
> 
> Although I'm primarily a CW op, and dabble in FT8 (sadly, sometimes there's 
> no one on anywhere else except for FT8), I'm thinking about expanding my SSB 
> presence on the bands.  I have a K3s and would be interested if anyone has a 
> specific recommendation for a good microphone?  I'm thinking about one of the 
> Heil microphones (either the Heil Gold or the Heil HM-10XD) but am willing to 
> look at anything else someone may recommend.
> 
> Thanks and 73 de Bernie, KF0QS
> 
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Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

[Brian Hunt]

(edited message follows)

> On Oct 25, 2022, at 13:05, Brian Hunt  wrote:
> 
> I believe the schematics, which are downloadable, will show the component 
> values. They are typically a binary progression. I’ve never tabulated them 
> though. 
> 
> Brian, K0DTJ 
> 
>> On Oct 25, 2022, at 10:16, Walter Underwood  wrote:
>> 
>> The KX3 has extra range so that it covers 160 m and 6 m compared to the 
>> KX2, which is 80 to 10 m. The T1 is spec’ed to cover 160 to 6 m, so I’m not 
>> sure about the details of that.
>> 
>> The KX3 might have a wider matching range on just the HF bands. I’ve only 
>> had it fail to match once.
>> 
>> A few years ago, there was a discussion on this list that gave all the 
>> component values for all the ATUs. I’m not having any luck finding those 
>> posts right now.
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/ <http://observer.wunderwood.org/> (my blog)
>> 
>>>> On Oct 25, 2022, at 9:51 AM, Julia Tuttle >>> <mailto:ju...@juliatuttle.net>> wrote:
>>> 
>>> Hi folks,
>>> 
>>> I was looking at Elecraft's antenna tuners, and I'm a little confused at
>>> their specs.
>>> 
>>> The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
>>> listed as having an 8L8C network, but all three are listed as being able to
>>> match up to a 10:1 SWR.
>>> 
>>> Why doesn't the KXAT3 have a wider matching range from the extra inductor
>>> and capacitor?
>>> 
>>> Is the 10:1 spec conservative and in reality all three can exceed it but
>>> the KXAT3 will outperform the other two? Do the eighth inductor and
>>> capacitor on the KXAT3 provide *closer* matches instead of a *wider*
>>> matching range?
>>> 
>>> Thanks and 73,
>>> 
>>> Julie
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>> 
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Re: [Elecraft] KXAT2 vs. KXAT3 vs. T1

[Brian Hunt]

I believe the schematics, which are downloadable, will show the component 
values. I’ve never tabulated them though. 

Brian, K0DTJ 

> On Oct 25, 2022, at 10:16, Walter Underwood  wrote:
> 
> The KX3 has extra range so that it covers 160 m and 6 m compared to the KX2, 
> which is 80 to 10 m. The T1 is spec’ed to cover 160 to 6 m, so I’m not sure 
> about the details of that.
> 
> The KX3 might have a wider matching range on just the HF bands. I’ve only had 
> it fail to match once.
> 
> A few years ago, there was a discussion on this list that gave all the 
> component values for all the ATUs. I’m not having any luck finding those 
> posts right now.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/  (my blog)
> 
>> On Oct 25, 2022, at 9:51 AM, Julia Tuttle > > wrote:
>> 
>> Hi folks,
>> 
>> I was looking at Elecraft's antenna tuners, and I'm a little confused at
>> their specs.
>> 
>> The T1 and KXAT2 are listed as having 7L7C networks, while the KX3 is
>> listed as having an 8L8C network, but all three are listed as being able to
>> match up to a 10:1 SWR.
>> 
>> Why doesn't the KXAT3 have a wider matching range from the extra inductor
>> and capacitor?
>> 
>> Is the 10:1 spec conservative and in reality all three can exceed it but
>> the KXAT3 will outperform the other two? Do the eighth inductor and
>> capacitor on the KXAT3 provide *closer* matches instead of a *wider*
>> matching range?
>> 
>> Thanks and 73,
>> 
>> Julie
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> 
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Re: [Elecraft] K3 / N1MM Keying and rig control

[Brian Hunt]

I might add that the computer is an old Win7 desktop running Win10. Definitely 
not a powerhouse. :-)

73,
Brian, K0DTJ

> On Oct 14, 2022, at 14:40, Brian Hunt  wrote:
> 
> I have been using a USB-to-serial converter cable for connection between the 
> K3 and computer running N1MM+. I use DTR keying on the K3 with VOX and QSK 
> on. This leaves the K3 internal keyer and paddle free to use at a different 
> speed for fills, etc. 
> 
> I have noticed the CW timing from the computer to falter a bit once in a 
> while depending on what else the computer is doing at the time. I try to 
> minimize the number of apps running. Typical CW speed is 22-32 wpm so I don’t 
> know how it would do faster than that. 
> 
> 73,
> Brian, K0DTJ
> 
>> On Oct 14, 2022, at 07:23, dave arruzza via Elecraft 
>>  wrote:
>> 
>> To all:
>> What is the preferred method of keying and rig control when using a K3 with 
>> N1MM. 
>> 73Dave W1CTN 
>> 
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Re: [Elecraft] K3 / N1MM Keying and rig control

[Brian Hunt]

I have been using a USB-to-serial converter cable for connection between the K3 
and computer running N1MM+. I use DTR keying on the K3 with VOX and QSK on. 
This leaves the K3 internal keyer and paddle free to use at a different speed 
for fills, etc. 

I have noticed the CW timing from the computer to falter a bit once in a while 
depending on what else the computer is doing at the time. I try to minimize the 
number of apps running. Typical CW speed is 22-32 wpm so I don’t know how it 
would do faster than that. 

73,
Brian, K0DTJ

> On Oct 14, 2022, at 07:23, dave arruzza via Elecraft 
>  wrote:
> 
> To all:
> What is the preferred method of keying and rig control when using a K3 with 
> N1MM. 
> 73Dave W1CTN 
> 
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Re: [Elecraft] KX3 Question on S-Meter Calibration

[Brian Hunt]

I thought I understood this but appears that I had it wrong.

 According to the SMTR calibration procedure, it is set with the PRE on and 
ATTN off. Calibration sets a 50uV signal to S9 and a 1uV to S2-S3.  See this in 
the Calibration Procedures section of the manual (p51 in my 2009 version). 

I’ve been using the SMTR ABS mode ever since I discovered it. YMMV

73,
Brian, K0DTJ

> On Oct 10, 2022, at 14:05, D Remy  wrote:
> 
> Does that also apply to the K3?
> 
> David R Hourdequin, PE 
> 828-421-6216
> 
>> On Oct 10, 2022, at 14:20, Don Wilhelm  wrote:
>> 
>> Greg,
>> 
>> The KX3 is designed around having the preamp on most of the time.
>> 
>> 73,
>> Don W3FPR
>> 
 On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote:
>>> I have noticed with my KX3 that the S-Meter is not calibrated that is 50 
>>> microvolts (-73 dBm) at the antenna connector equals a S9 signal only when 
>>> the preamp is turned on. Is this normal and the way the KX3 is designed?
>>> I thought it might be with the preamp off.
>>> 
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Re: [Elecraft] [K3] Strange Selective Hearing in My K3

[Brian Hunt]

Sounds like a thermal problem, possibly with the 8v regulator. I have a problem 
with my K3 (S# 4K range). If the rig is cold ~60 F the 8v apparently goes out 
of regulation evidenced by the display illumination dimming on key down. The 
rig works normally otherwise. The problem goes away once the FP Temp warms a 
little - I wrote the number down somewhere but can’t find it now. 

Good luck & 73,
Brian, K0DTJ

> On Oct 10, 2022, at 09:49, Michael Carter  wrote:
> 
> Hi Eric,
> 
> I'm voting with my friend Dave, K1WHS,
> for looking first at the voltage regulators.
> 
> The 8 volt regulator supplies the TC4427
> gate driver IC, which in turn provides 7R/7T voltages
> separately to the Transmit and Receive switching circuits.
> The loss of the 7R/7T voltages would disable the
> PIN diode T/R switches and render the radio deaf
> and unable to transmit.
> 
> If the 8 volt regulator doesn't collapse after some
> time observing its output voltage, I would check
> the TC4427 (U11 on the RF Board) to be sure its
> outputs are correct (the 7R/7T voltages).  The
> regulator is likely the first culprit - its '8A' output
> pin provides power to a large number of circuits
> in the radio.
> 
> 73,
> Mike, K8CN
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Re: [Elecraft] Product availability communications (was: KPA1500 Amplifiers are now shipping from Stock)

[Brian Hunt]

Check the “Shipping Status” link on the Elecraft home page. It shows the 
shipping status on virtually all their products. It’s updated when there are 
changes.  KPA-1500 is shown as in stock, no doubt updated in the last few days. 

73,
Brian, K0DTJ
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Re: [Elecraft] AX-1 -- with and without counterpoise

[Brian Hunt]

Ha!  I did the same thing last night only with slightly parameters:

0.2 inch diameter 4 ft. rod (average diameter of AX1?) with the base 5 
ft above average ground.  Counterpoise (#18 wire) drops 4 ft from the 
feed point then trails out 9 ft to about 2 inches above ground. The base 
loading coil was 11.3 uH with a 6.7 ohm series resistor for a Q of 150.


Not surprisingly, the gain plot showed best gain in the direction of the 
counterpoise: -0.37 dBi at 30 degrees elevation.  Gain in the opposite 
direction was -4 dBi.  So if you are in a QSO with someone, you should 
be walking away from them. :-)   SWR at 14.050 MHz resonance was 
calculated at 3:1.


Interesting exercise!

72,
Brian, K0DTJ

On 9/26/2022 12:15, David Gilbert wrote:


I modeled something similar to an AX1 with EZNEC last night.  I used a 
base loaded 4' length of 1/2 inch diameter tubing for the whip, a 
roughly 10 uH coil with a Q of 200 (25 turns, 1.5" diameter, 3" 
length), and a 13 foot #14 counterpoise wire.  It was oriented 
vertically with the bottom end of the counterpoise wire being 2 feet 
above "typical" ground.  The frequency was about 14.1 MHz.


It looked surprisingly decent for both SWR and field pattern ... only 
about -2 dBi ...  although of course we should be suspect of the 
accuracy for a model that severe.


The calculated field strength without the counterpoise wire was about 
-10 dBi, but that's clearly unrealistic because the SWR was 700 (no 
exaggeration).   In practice I'm sure that other things (human body, 
coax shield if used, proximity of the rigs case to ground, etc) have a 
moderating effect, and they all likely introduce additional loss.  I 
don't think there is any way that EZNEC can accurately model something 
like that, and we also have the issue of how much loss there might be 
in the tuner trying to match such a difficult load.


Thus the urge to do a real world test, although I'm coming to believe 
that no matter how hard I try, it probably isn't possible to control 
proximity effects well enough for the case without the counterpoise 
wire to get a truly definitive comparison.  That SWR of 700 in the 
model was because the feedpoint had a capacitive reactance of 35,000 
ohms (!!).  It is certainly debatable whether that figure is accurate, 
but there can be no doubt that it is very high.   A ballpark 
comparison is therefore about the best I expect whenever I find myself 
able to do the test.


73,
Dave   AB7E


On 9/26/2022 4:05 AM, Gerry leary wrote:
I have used my AX2 both ways, and I have never found it to be 
advantageous to use that antenna without a counterpoise.


Gerry Leary Wb6ivf


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Re: [Elecraft] switchbox KX3 to signalink/mike+headphones

[Brian Hunt]

Pretty simple home brew project, I would think. Four stereo jacks, a DPDT 
switch, a small box and a capacitor should do it. The capacitor is to block the 
mic bias from going to the Signalink. You would still likely have to adjust 
levels whenever switching. Would take some study to get all the connections 
right. 

73,
Brian, K0DTJ

> On Jul 23, 2022, at 17:29, Andrew (A.J.) Stockton via Elecraft 
>  wrote:
> 
> You can check out a few on Amazon - common one headset between computer for 
> web calls and second for gaming systems 
> 
> Nobsound Little Bear MC1023 2-Way Audio Microphone Headset Speaker MIC 
> Switcher Headphone Switch Hub Volume Control Controller Selector 3.5mm RCA 
> https://a.co/d/7lg6yyp
> 
> A.J. Stockton
> 
>> On Jul 23, 2022, at 7:33 PM, James Bennett via Elecraft 
>>  wrote:
>> 
>> For sure - I’d like to switch my Yamaha CM-500 headset between my K4D and 
>> an Icom IC-705. I currently have to use two separate headsets - a PITA to 
>> say the least.
>> 
>> Jim / K7TXA
>> 
 On Jul 23, 2022, at 5:26 PM, Julia Tuttle  wrote:
>>> 
>>> I would be interested in such a gadget too! And it's not (just) lazy, it
>>> also saves wear on the jacks. :)
>>> 
 On Sat, Jul 23, 2022 at 1:49 PM  wrote:
 
 Is there a product, some kind of a little box,  that allows me to quickly
 switch the KX3 mic/phones between SignaLink and  my mic and speakers ?
 
 I know it sounds lazy !
 
 
 
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Re: [Elecraft] Options for contest logging software under Linux

[Brian Hunt]

Kevin,
For option 3 you might take a look at the groups.io linuxhams. A quick search 
there unearthed xlog. Don’t know anything about it but the write up says 
general and contest logging. 

Dual booting the computer you want to use for contesting could be option 4. 

73,
Brian, K0DTJ


> On Jun 12, 2022, at 13:32, kevin  wrote:
> 
> I run versions of Linux on five of my computers.  I would like to implement 
> N1MM's logging software on one of them.  It appears I have three options:
> 
> 1) Install N1MM directly and use wine to run it.
> 
> 2) Install N1MM in a Windows 7 virtual machine under Virtual Box.
> 
> 3) Use another logging application specific to Linux.
> 
> 
> For option 1 I found this link describing the installation and support 
> methods -
> 
> https://www.nf8m.com/nf8m/n1mm-on-linux/
> 
> Does anyone have any other links for this option?
> 
> 
> Option 2.  Has anyone tried using N1MM's app using Virtual Box? I am more 
> comfortable with it than I am with using winetricks.  I have modified com 
> port status under Virtual Box for some of the applications I write.  It is 
> involved but I have already done the homework.
> 
> 
> Option 3 - does anyone know of good logging applications for Linux?
> 
> 
> Or the option I have not listed: logging on paper which is my normal method.
> 
> Any information, opinions, or options I have not covered?
> 
>73,   Kevin.  KD5ONS
> 
> 
> -
> 
> 
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Re: [Elecraft] Sherwood Receiver Tests

[Brian Hunt]

The table is sorted on “Narrow Spaced Dynamic Range” which is only one measure 
of “best”. To get a better understanding of the overall picture, read 
through/view some of Rob’s presentations on his website. Very enlightening. 
73,
Brian, K0DTJ

> On Apr 28, 2022, at 18:44, Gary Gregory  wrote:
> 
> Reading the Sherwood tests today I noticed the K4D tested ranked below the
> K and K3s and I started to look at the data published and I am still a
> little unsure of why it scores lower having assumed it would be
> significantly better in performance over the K3 and K3s.
> 
> Perhaps somebody could point out to me if I am not seeing what is
> important.
> 
> I believe in if I can hear them, I can work them but like most folk I like
> a quiet noise floor and a comfy buffer of audio over noise.
> 
> My current thinking is hold onto my K3 until the K4 is improved as my
> upgraded #679 has served me so well and is the only transceiver I have ever
> loved and kept. It's not going anywhere soon hi hi.
> 
> Gary
> VK1ZZ/K3NHL
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Re: [Elecraft] Interference on 17M

[Brian Hunt]

Potentially a solar panel. Any new installations nearby?  Does it go away after 
sunset?

I have an S9 noise signal on about 14036 with spurs on either side coming from 
a new solar installation about 200 yards away. Broad but very stable. Makes 
that section of the band tough to use. I think it’s Solar Edge but haven’t 
confirmed it.  QTH is Northern California. 

73,
Brian, K0DTJ

> On Apr 18, 2022, at 07:30, Ron Bell via Elecraft  
> wrote:
> 
> Does anyone know the source of interference in 17M, starts at 18.138, peaks
> 18.147 and second peak at 18.158, sounds like very rapid buzz or popping
> sound?  Makes upper 30 Khz of 17M useless.  Over the Horizon radar?
> 
> 
> 
> Happy international amateur radio day.
> 
> 
> 
> 
> 
> Ron
> 
> AF1Q / DA1YS
> 
> 
> 
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Re: [Elecraft] KX2 WTB(uild) external amplified speaker

[Brian Hunt]

I found a pair of amplified speakers at a thrift shop that meet the need pretty 
well. Can’t beat the $6. :-)
73,
Brian, K0DTJ



> On Apr 14, 2022, at 16:52, Andrew Moore  wrote:
> 
> KX2 arrived yesterday after a ~15 week wait, which was pretty much spot on
> with Elecraft's original estimate.
> 
> One of the best features is, especially for a compact rig with limited
> dedicated controls, the ability to assign a programmable function button to
> an otherwise buried menu feature. For menu features that are binary choices
> (such as enable/disable CW transmit), not only does the PFn button activate
> the menu item, but it also toggles the parameter and dumps you right back
> into operating mode. For example, you can toggle between "CW transmit" and
> "CW practice (no transmit)" by pressing only two buttons. No need to go
> through deep menus. Kudos to KX2 designers for thinking ahead.
> 
> One of the not so great features is the internal speaker. It's even raspier
> and more distorted than the forward-facing one supplied with the KX3. This
> is to be expected; there are design trade-offs and this rig wasn't designed
> to be a desktop model with high wattage audio output.
> 
> My typical use case for the KX2 is to listen to it in the background on the
> desktop with good quality speaker audio, and then to switch to
> headphones/earphones when in QSO.
> 
> So I'd like to build an audio amplifier to convert the KX2 headphone output
> levels to say 5 watt speaker output (one of the two channels will suffice)
> for listening to relatively undistorted audio in the shack. A good starting
> point is knowing what the output level and impedance is for the headphones
> jack. I measured approx 20 mV P-P (impedance unknown) at an audio output
> level around "AF 10" according to the KX2 display. Does this sound about
> right?
> 
> Bonus points: First QSO with the KX2 was from Maine to Bermuda at 1 watt.
> 
> Thanks,
> -Andrew NV1B
> ..
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Re: [Elecraft] Reset KX2 to factory settings.

[Brian Hunt]

Hopefully you saved the configuration using the KX2 Utility. If so, just reload 
it. 

In the manual, there is a table containing the menu descriptions and their 
default options. Easy to go through and a good place to learn what they do. 

EEINIT is described on page 56 of the manual. Basically the top line says DON’T 
DO IT. If you do, you must have a configuration file to reload all the 
calibration data and defaults.  

Good luck!

Brian, K0DTJ 

> On Mar 2, 2022, at 17:28, jimith...@gmail.com wrote:
> 
> I messed up settings trying to learn  the menus . How do I get back, or to 
> factory settings ?
> 72,
> 
> Jim W1FMR
> 
> Sent from Yahoo Mail on Android
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Re: [Elecraft] USB PTT causes strong Speaker Feedback in K3

[Brian Hunt]

Did you inadvertently turn up the MON level?  
73, Brian, K0DTJ

> On Feb 27, 2022, at 03:31, Bob KD7YZ  wrote:
> 
> Hello K3 List
> 
> K3 upgraded to K3s. MON = 0 .
> 
> When  I  push  the  PTT  on  the Icom SM-50 base mic, there is noticeable
> feedback coming from the station stereo speakers.
> 
> In  the  past  week  I  have  not  reconfigured  the  CONFIG or MAIN nor
> added/removed back-end cables.
> 
> So  ..since  there  IS  feedback, I MUST have done something. But search
> thru config and manual I can't figure it out.
> 
> Help please?
> 
> 
> --
> 73,
> KD7YZ Bob EM88LL
> 
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Re: [Elecraft] HELP WITH FT-8 ON MY K3S SETUP

[Brian Hunt]

A starting place is Don, W3FPR’s webpage: W3FPR.com. At the bottom of the 
sidebar is a write up on how to set up Elecraft radios for digital modes. 
Expert guidance.

73,
Brian, K0DTJ

> On Nov 27, 2021, at 08:43, Nolte Dennis  wrote:
> 
> I would help in setting up my K3S for FT-8...I have downloaded
> WSJT-2.5.1...and my logging program is HRDbut don't need to log
> contacts on that program...
> Thanks for any suggestions on the required setting
> 73
> Denny
> W3HVY
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Re: [Elecraft] Elecraft K1 VFO reading

[Brian Hunt]

I think what you are seeing is probably typical. I have a K1-4 that tunes down 
to 6988 and 13982 on 40 and 20 respectively. My tuning range is a little wider 
at 93 kHz. 

The Owner’s Manual has a detailed section on VFO alignment. If you didn’t get a 
manual with the radio you can probably download one from Elecraft. 

Good luck and have fun with this little beauty. 

73,
Brian, K0DTJ

> On Nov 26, 2021, at 12:18, Mike Smith VE9AA  wrote:
> 
> Just bought a K1..an oldie but a goodie, I guess.
> 
> NB board and 2 bands board (20/40) No tuner.
> 
> 
> 
> So, just playing around, getting familiarized with this new-to-me little rig
> before transmitting or hooking it up to a real antenna and I notice:
> 
> 
> 
> on 20m:  it tunes from 13.974MHz - 14.063MHz
> 
> 
> 
> and on it tunes from 40m from 6.980MHz-7.068MHz
> 
> 
> 
> When I transmit on a nearby rig or compare frequencies to DX cluster spots,
> just using a chunk of wire for an antenna, and listen for the various
> stations it looks like the VFO is reading pretty much bang on. 
> 
> 
> 
> So, is this a matter of incorrect components installed or a poor alignment
> or the (re)seller messing with the "CAL" in the menu or ??
> 
> 
> 
> I don't really want to mess with it too much, but I am missing 20-25kHz of
> usable bandwidth on each band. (seems like I have about 88kHz of tuning
> range, but 20-26kHz of it is below the bands---oof !)
> 
> 
> 
> Ideas?
> 
> 
> 
> TIA !
> 
> 
> 
> 73 Mike VE9AA  
> 
> 
> 
> Mike, Coreen & Corey
> 
> Keswick Ridge, NB
> 
> 
> 
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Re: [Elecraft] No bars at all on KX3 digital mode transmit

[Brian Hunt]

It’s a self protection feature to keep you from blowing up the audio input. The 
KX2 has it as well. Causes me to scratch my head until I remember. 

73,
Brian, K0DTJ

> On Nov 23, 2021, at 17:36, Julia Tuttle  wrote:
> 
> Does anyone know *why* it does that? It's confusing when no bars means
> either "way too high" or "way too low".
> 
>> On Tue, Nov 23, 2021, 20:22 AL7CR  wrote:
>> 
>> 
>> A classic problem.  You have TOO MUCH input gain.  Counterintuitively the
>> KX 3 ALC will display nothing if over driven.  Turn the input way down and
>> then increase in small steps.  You will find the right setting to show ALC
>> that way.
>>> On Tue, Nov 23, 2021, at 2:57 PM, Frank O'Donnell wrote:
>>> After not having used my KX3 in a while, today I set it up with a laptop
>>> on the front porch to send FT8 in WSJT-X with a new AX1 antenna.
>>> 
>>> I went through the procedure in Don W3FPR's document "Setting Elecraft
>>> Transceivers for soundcard digital," setting in and out audio levels on
>>> my MacBook Pro for the thumbnail-sized Sabrent USB soundcard; Mic Gain
>>> on the KX3; and the power slider in WSJT-X. CAT control is working fine,
>>> and the KX3 is in DATA A mode. The waterfall of incoming signals appears
>>> normal.
>>> 
>>> I seem to be getting a good signal out, with -1 dB reported from Alaska,
>>> and -7 to -10 dB from the U.S. east coast with the above settings around
>>> midrange, and with the KX3 set for 15w out. However, I don't see any
>>> bars at all on the ALC meter at any time, even when the USB soundcard
>>> out, KX3 Mic Gain and WSJT-X power slider are set as high as their
>> maximums.
>>> 
>>> Am I forgetting a setting? Anything I can look at to troubleshoot the
>>> ALC meter function?
>>> 
>>> Thanks much,
>>> 
>>> Frank K6FOD
>>> Southern California
>>> 
>>> 
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Re: [Elecraft] Choke for QRP with unbalanced antennas?

[Brian Hunt]

I use a large ferrite clamp-on to isolate my short whip/counterpoise from my 
KX2. Needed tor running digital modes. The large variety will hold 3 turns of 
RG-58 which seems to be enough for what I need. IIRC I got them from ProAudio 
Engineering. GL

73,
Brian, K0DTJ

> On Nov 20, 2021, at 10:10, Julia Tuttle  wrote:
> 
> Hi folks,
> 
> I was tinkering with a whip + counterpoise antenna connected to my KX3 by a
> short stretch of coax with BNC connectors a couple nights ago, and
> discovered (painfully) that there was quite a bit of RF coming back along
> the ground when I bumped the outside of the antenna connector. I know from
> experience that the KXPD3 can end up tingly in turn, and I'd like to avoid
> that.
> 
> If this were a fixed antenna, I'd just slap one of the LDG RU-1:1 ununs on
> it as a choke, but they're pretty chunky -- they're rated for 100 W CW, and
> have SO-239 connectors, which would require adapters on both sides in this
> setup.
> 
> Does anyone know of a choke more appropriate for this kind of setup? I'd
> prefer something smaller (rated for maybe ~40-50 W continuous?) and
> natively BNC, so I don't need to juggle adapters.
> 
> More broadly, is this the appropriate way to fix this problem? This was
> with the counterpoise extended as best I could, and with the radio powered
> from mains (which may have actually made the problem *worse* by providing a
> more attractive path than the counterpoise?).
> 
> (As an aside, when components like baluns/ununs or tuners are rated as "100
> W CW, 200 W SSB", do they mean literally a continuous wave, or do they mean
> CW at a standard Morse duty cycle of roughly 50%?)
> 
> Thanks and 73,
> 
> Julie
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Re: [Elecraft] Wire antenna ends and spools?

[Brian Hunt]

I just wind a figure-8 between my thumb and little finger and tie the bundle 
with a twist tie. Spade lug on one end and small weight on the other. 25 ft is 
about the longest this works for. 

72,
Brian, K0DTJ
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Re: [Elecraft] Problem with my KXPD2

[Brian Hunt]

The KXPD2 comes with two small hex-keys. The larger is fits the screws that 
adjust the spacing. The smaller one is for the pivot screws to adjust the 
setting of the pivot bearings. It sounds like your pivots are possibly too 
tight or have dust in them. I would try loosening the pivot screws slightly to 
see if that frees them up. The pivots should be set so the paddles move freely 
but with no up/down looseness. Then set the spacing to taste. GL!

72,
Brian, K0DTJ

> On Sep 14, 2021, at 15:34, Chris  wrote:
> 
> Hello,
> 
> My KXPD2 paddle has some issues. It moves very sluggishly and causes
> errors. The manual doesn't have any service instructions. Is anyone else
> having the same problem?  Any suggestions?
> 
> Thanks,
> 
> Chris KM1B
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Re: [Elecraft] KX2 temperature

[Brian Hunt]

I believe the trip temp. is 60c. The rate you get there, of course, depends a 
lot on power setting, mode and ambient temperature. I’ve found at normal shack 
ambient I can cycle FT8 pretty quickly at 7 watts. But I always monitor PA TEMP 
and back it down if necessary. At the beach with a 55f breeze - no problem  

It’s a great little rig. Have fun!

73,
Brian, K0DTJ

> On Aug 21, 2021, at 09:12, Bill Lederer  wrote:
> 
> Team:
> 
> I discovered that the KX2 will trip out if its temperature gets too high.
> Clearly, this is a good thing. I am considering getting the heat sinks for
> the side. I now run with the temperature displayed.
> 
> My question in relation to this is: is there a fixed temperature that it
> will trip out at? Alternatively, what is a  good threshold to observe to
> avoid over-temperature  operation? The manual does not seem to be very
> specific.
> 
> Thanks for a great radio (I have it in my office  upstairs with a wire to a
> tree, and get on the air between meetings.) and for a great forum.
> 
> -- 
> --w8lvn--
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Re: [Elecraft] K3 General Coverage

[Brian Hunt]

The easiest way is to use the K3 Frequency Memory Editor to enter favorite 
stations into memory. The program is available for download from Elecraft.com. 
It works for KX3 and KX2 also. 

73, Brian, K0DTJ

> On May 23, 2021, at 16:40, Larry Boekeloo  wrote:
> 
> Curious as to how others access the short wave bands.

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Re: [Elecraft] KBPF3A switching frequencies and performance

[Brian Hunt]

This thread also got my curiosity up.  Several years ago I upgraded my 
K3 #41xx with the KBPF3 including the 'A' mod of the capacitor on the RF 
board.  I never really checked it out except for the 630 meter coverage 
and transmit capability - both were as advertised.


Using a wideband noise generator (QRP Guys K7QO Noise Bridge) I tuned 
from about 500 kHz up to 30 Mhz and was able to identify the filter 
switch-over points (most of them anyway).  I measured the received noise 
level using the P3 dBm scale.  At none of the switch points was the 
noise level more than about 5 dB different from one side to the other.  
By continuously tuning and watching the display, it was apparent that 
the differences were mainly due to roll off of one filter segment or the 
other.  The gain was uniformly consistent across each of the ham bands 
but sometimes rolled off at the KBPF3 switch points.  The area between 
7.41 MHz and 8.4 MHz is kind of no-man's land due to the first IF being 
there.  At the IF frequency the gain was down >50 dB.


73,
Brian, K0DTJ

On 4/20/2021 08:57, w4sc wrote:

A little back ground,,

The effort started as a result of my using WWV at 15.00 MHz for calibrating 
the reference oscillator.  Tuning from 14.99 to 15.00 MHz I noticed a 9 
to 12 Db drop in signal strength of WWV.

...

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Re: [Elecraft] Inventorying a K3/P3

[Brian Hunt]

Dave, 
There have also been numerous component adds/mods over the years. Three that I 
did a couple years ago are 1. Increase the 12vdc accessory power from 500 ma to 
1 A. Evidence is a 1A sticker on the rear of the K3. 2. Add a capacitor to the 
KPA3 to eliminate fan noise pickup evident after the new synthesizers are 
installed. 3. Addition of a capacitor to the KBPF3 general coverage BPFs to 
extend coverage down to the 630 meter band. I’m sure there are others. See the 
mod instructions available on the Elecraft site if you go sleuthing inside the 
box. These are a bit inconsequential but add value to the K3. 

Have you thought about asking Elecraft for the work orders for the K3’s S/N?

Good luck and thank you for helping out the family. Sorry you lost a friend. 

73,
Brian, K0DTJ



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Re: [Elecraft] Late Elecraft CW Net Announcement

[Brian Hunt]

Cornell Labs puts out a really nice iPhone app called Merlin which includes 
regional databases, a search ladder to narrow down what you are trying to 
identify, photos and audio recordings and a brief description. We use it on 
hikes all the time to ID and try to call the birds we see. Great fun. 

73,
Brian, K0DTJ

> On Mar 7, 2021, at 14:51, kevinr  wrote:
> 
> It is time to prepare for migration season.  I scan a few bird books to 
> memorize identifying marks.  Birds normally appear in low contrast locations, 
> looking little like they do in photos. Habitat and behavior let you narrow 
> your choices, but I find the best method is to learn their calls.  Even if 
> you don't see them you can mark them off your life list.
> 
> A good source of bird songs is the Cornell Lab of Ornithology. They have 
> quite a list of Eastern songbirds as well as other species.  This is the same 
> lab which developed Spectrogram; the program many  of us used to adjust our 
> K2 filters.  I need to find a similar site for the Western part of the 
> continent.  Many species pass through on their way to Alaska and Canada.  I 
> only see them one or two days a year.  It is my best time for spotting a new 
> one.
> 
> Now to gather a goodly number of their recordings, and start listening.  Much 
> like CW, it takes practice to learn more species' songs and calls.  Some 
> birds make ten to twenty different sounds. There are a few which can only be 
> differentiated by their calls; the species look exactly the same.

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Re: [Elecraft] KX2 Starts Off with Low Output on 10M

[Brian Hunt]

Nate,
A couple more questions:

Does the KX2 do the same thing on CW?

Did Elecraft say anything about doing a TX gain calibration?  This can be done 
with the KX2 utility although I haven’t done it on mine, just on my K3. It sets 
the per-band gain coefficients  Be sure to save the current CONFIG file so you 
can restore it if needed. You will need a good dummy load an a stable power 
source. The procedure is on p. 38 of the Rev A5 Manual. 

Good luck,
73,
Brian, K0DTJ
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Re: [Elecraft] KX2 Starts Off with Low Output on 10M

[Brian Hunt]

The KX2 uses a control loop to set power. Make sure you have sufficient audio 
drive to energize the loop. Using the ALC display set the MIC GAIN so you have 
5-7 bars on voice peaks, per the manual. 

What MIC are you using? Have you tried the internal MIC?

GL & 73,
Brian, K0DTJ
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Re: [Elecraft] Mic headset for K3

[Brian Hunt]

I have two of the $16-20 Logitech computer headsets, one permanently plugged 
into the back of my K3 and the other I swap between my KX2 and computer for 
zoom calls. They each weigh about 4 ounces and I don’t feel like my head’s been 
in a vice after wearing them for a couple hours. The good thing for us mic 
neophytes is the mic is always in the right spot for consistent modulation 
levels, etc. YMMV

73, Brian, K0DTJ
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Re: [Elecraft] KAT500 Anomalies

[Brian Hunt]

If you have listened to the VARA signal, you know it consists of a series of 
tone frequencies sent in sequence. That could very well be driving the KAT500 
nuts in AUTO mode. Training and then MANUAL is the solution. GL!

73, Brian, K0DTJ

> On Nov 23, 2020, at 12:53, Lyn Norstad  wrote:
> 
> Today, running 50 watts in Winlink VARA HF mode, it had problems staying
> matched on 80 meters.  It would try to rematch on each transmit cycle.
> 
> 
> 
> As a result, the cycles were incomplete and data transfer was erratic.
> 
> 
> 
> My question is, how many memory settings can it hold in memory, per band?
> My antenna is fed with ladder line (yes, I have a balun, etc and it's been
> fine for well over a year).  It's possible that the system will tune
> slightly different now and then due to the ladderline blowing around (in
> contact with tree leaves, let's say).  Am I using up so many memory slots
> after this time that it is running out of space?
> 
> 
> 
> Thinking that might be a possibility, I reloaded a config from about 6
> months back which would not have seen as many frequencies used.  I have also
> experimented with the MTA commands.  At this point, it seems stable.
> 
> 
> 
> I've always been a bit confused by the "Teach it in Auto Mode, but Operate
> in Manual Mode" suggestion I've heard from time to time.  As received, the
> "Memory Recall Tune on QSY" defaults to ON for both modes.
> 
> 
> 
> I'd appreciate any insight from KAT users.
> 
> 
> 
> 73
> 
> Lyn, W0LEN
> 
> 
> 
> 
> 
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Re: [Elecraft] k2 cw filter alignment friture app

[Brian Hunt]

In Windows 10 settings make sure “Allow apps to use the microphone” is turned 
ON. I think it’s in the security section. 

73,
Brian, K0DTJ

> On Nov 15, 2020, at 00:41, carlos popelier  wrote:
> 
> hi,
> is it possible to use friture instead of spectrogram ,
> spectrogram seems not to work on windows10
> i have signals on friture spectrogram, so soundcard is working
> carlos on6cn
> 
> -- 
> mvg carlos popelier
> regards carlos popelier
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Re: [Elecraft] Why predistortion ?

[Brian Hunt]

Usually called adaptive optics these days. The laser is a "guide star".  

73,
Brian, K0DTJ

> On Sep 15, 2020, at 16:39, Fred Jensen  wrote:
> 
> Didn't the term "pre-distortion" originate in the astronomy world where one 
> creates an artificial star with a powerful laser, and then distorts the 
> telescope mirror in real time to minimize atmospheric effects [twinkling]?  

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Re: [Elecraft] K3 External speakers

[Brian Hunt]

Set CONFIG:SPKRS=2. Same audio comes out of both external speakers. AFX makes 
some effects that can be less tiring. 

73,
Brian, K0DTJ



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Re: [Elecraft] KX3 power out

[Brian Hunt]

What is the key-down voltage seen on the KX3 display?  Measure the regulated 
voltage at the PS under the same conditions. Is it OK?  I had power control 
problems on my K3 until I solved the sagging voltage problem. GL & 73, K0DTJ

> On Jul 11, 2020, at 12:42, Frank O'Donnell  wrote:
> 
> Always something else I remember just after hitting send.
> 
> The KX3 is running off the Pro Audio Engineering PAE-Kx33 power supply, 
> plugged into the 9-15 vdc connector.
> 
>> On 7/11/20 12:40 PM, Frank O'Donnell wrote:
>> After a fair time of non-use, today I got out my KX3 and started working 
>> through configuration checklists. Among other things I thought I'd check the 
>> power out.
>> 
>> For this test I used a Bird 43 and MFJ-260C dummy load. For HF I used a Bird 
>> 2-30 MHz 25w element, and for 2m a 100-250 MHz 10w element. I put the KX3 in 
>> CW mode and keyed with the KXPD3 paddle. When changing to each HF band I hit 
>> the ATU Tune button.
>> 
>> On 40m and 20m I found that with the Pwr knob set to 15w, the Bird showed 
>> about 8w out. With the Pwr knob set to 5w, the power out is about 3w.
>> 
>> After changing the antenna port and Bird element, on 2m with the radio set 
>> to 3w the Bird shows about 2.5w out.
>> 
>> Any thoughts on these results, or suggestions on other things to check?
>> 
>> Thanks and 73,
>> 
>> Frank K6FOD
> 
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Re: [Elecraft] Firmware

[Brian Hunt]

The suggestion to read through the release notes is a good one. As I recall 
there was an update a while back that needed the TX GAIN CAL to be redone. It 
will be identified in the release notes. Good luck!
73,
Brian, K0DTJ
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Re: [Elecraft] K4 NR & NB

[Brian Hunt]

Will the NR "mixed mode" (NRmF5-x and above) where some of the 
unprocessed signal is mixed with the processed signal be available on 
the K4 as it is on the K3?  I've discovered that feature coupled with 
the APF is an excellent way of copying near-the-noise CW signals.


Thanks & 73,
Brian, K0DTJ

On 5/22/2020 20:08, Wayne Burdick wrote:

Hi Drew,

The K4 has one linear control range of 0-15 for both NR and NB, making
adjustment far simpler. There's virtually no delay in setting up NR.

73,
Wayne
N6KR






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Re: [Elecraft] Recommended Power for K3/100 for 100% Data Modes

[Brian Hunt]

One thing you might check is whether or not your K3 has thermal pads between 
the LPA transistors and where they bolt to the bottom cover. I ran across this 
when doing some mods and the instructions said to reinstall them but my early 
4xxx K3/100F didn't have them. When I asked the Elecraft tech he said they were 
added because of the higher duty cycle digital modes. As a minimum make sure 
those screws are tight. 

73, 
Brian, K0DTJ

> On May 22, 2020, at 16:03, Eric KG6MZS  wrote:
> 
> Hello All,
> 
> I’ve searched the reflector's archives and haven’t found anything on this, so 
> here goes.
> 
> I have an aging K3/1000 (sn 3045) and I wish to preserve its operating life.  
> Up until now I’ve mostly operated in SSB and BPSK.  Recently I’ve been 
> exploring some 100% duty cycle modes and I am wondering what would be a 
> prudent power level for these modes.  Or perhaps there is a temperature limit 
> that should be observed on the KPA3’s heat sink?
> 
> Suggestions?
> 
> TIA,
> Eric Fitzgerald
> KG6MZS 
> 
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Re: [Elecraft] KX3/KX2 remote for FD

[Brian Hunt]

We usually set up FD at one of the state beaches here in NorCal but not this 
year. Parking is all closed off and no special event permits are being 
processed. We will have an individual effort also. I'll be running my KX2 or K1 
off the aux battery I pull from the Land Rover just like I would if the big one 
hits. CW only so no computer needed except for logging (which can run from 
mains power per the rules). Gonna be different!!

GL all. 

73,
Brian, K0DTJ
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Re: [Elecraft] Quick Followup to my recent query

[Brian Hunt]

I programmed one of my KX2 PF keys for VOX MD ON/OFF. Now it's 2. Button 
presses. 

72, 
Brian, K0DTJ

> On Apr 23, 2020, at 11:07, Carter Craigie  wrote:
> 
> I DO see the VOX button on my KX3, so the question is only about my KX2
> rig, which has no VOX button.
> 
> Sorry for the confusion.
> 
> 73,
> 
> Carter, N3AO
> Blacksburg, VA
> 
> -- 
> Carter, N3AO
> Blacksburg, VA
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Re: [Elecraft] No ALC Indication in DATA A mode with fldigi

[Brian Hunt]

Both the KX3 and KX2 have over voltage protection on the mic input. If the 
input is too high mic input will be clamped to zero. When adjusting the audio 
level, start with the mic/line gain all the way down and increase it slowly. 
You should see the ALC increase. Stop when it reaches 4 bars with the 5th 
flickering. 

Since I don't do much data mode with my KX2 this feature bites me once in a 
while. :-) 
HTH & 73,
Brian, K0DTJ

> On Apr 5, 2020, at 19:11, KE0KAC  wrote:
> 
> I'm stuck trying to understand why I can't get any ALC bars when I'm using
> fldigi.  I can connect headphones to the line that normally goes into the
> MIC connector and can vary the volume from complete silence to very loud so
> I know a signal is making it to the MIC jack.  If I plug my MH3 microphone
> into the MIC jack and speak, I see the bars vary depending on how loud I
> talk.  
> 
> A question - when fldigi puts the KX3 into transmit and send data, should
> the RF scale disappear and be replaced by the ALC scale?  Sometimes (like
> right now) I don't see the ALC scale BUT I see bars above the RF scale that
> I can vary using the MIC knob.  What causes the ALC scale to show up?
> 
> By the way, my KX3 is connected to a KXPA100 which the manual indicates has
> an ALC adjustment screw.  Is the KXPA100 controlling some of this?
> 
> Mike, KE0KAC
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] K3 Audio

[Brian Hunt]

Are you using external speakers? If so make sure they aren't plugged into the 
headphone rear jack instead. Those pesky jacks are right next to each other. 
Been there

73,
Brian, K0DTJ
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Re: [Elecraft] Interesting P3 Anomaly

[Brian Hunt]

As I recall, if you disconnect the RS232 thru the P3 to the K3 it the P3 will 
display your spectrum since it doesn't know to mute during TX. Someone from 
Elecraft said it was due to "leakage" and is at IF so doesn't represent your 
transmitted signal. Seems like you found a software way to do this. :-)

73,
Brian, K0DTJ
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Re: [Elecraft] KX-2 For Sale $1200 AS NEW

[Brian Hunt]

That's about what I paid for mine, without the hat. Got my hat with a P3 and a 
tour. A $900 hat instead of a $1200 hat.  Bargain. 

73,
Brian, K0DTJ

> On Feb 21, 2020, at 17:09, John Harper  wrote:
> 
> I thought your price was excessive until I read that you're including the
> hat.
> 
> John AE5X
> https://ae5x.blogspot.com
> 
>> Unused - Internal tuner, internal Battery with Charger, all cables, carrying 
>> bag, hat.  Will pay shipping to lower 48.
>> 73, PAUL WA6YCA
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Re: [Elecraft] Your opinion on K3s settings for best weak signal cw reception

[Brian Hunt]

I use an audio spectrum display - Spectrogram - to fine tune a barely there 
weak signal. Set tuning rate to 1 Hz - the APF peak is less than 10 Hz. Set the 
frequency cursor in Spectrogram to your pitch frequency. Set the DSP bandwidth 
wide so the NR works effectively ~ 700 Hz. Use NR mode ~m5-3 so the APF has 
some unprocessed signal to work on. It takes practice but works. 

73,
Brian, K0DTJ

> On Feb 11, 2020, at 18:05, bw...@fastmail.fm wrote:
> 
> Would anyone be willing to offer suggestions/recommendations?
> Your setup of the K3s to maximize weak signal cw reception?
> I especially would like to figure out how to maximize the APF without ringing.
> 
> Sincere thanks
> Duane
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Re: [Elecraft] problem downloading new (current) firmware from kx3 FTP site.

[Brian Hunt]

Are you using Windows 10?  It has a fit when you try to download files 
into its protected directories like  C:\Program Files (x86)\Elecraft\KX3 
Utility.  I don't have the KX3 Utility but the K3 utility has an option 
to place downloaded files somewhere in the User directory.  Windows 
should accommodate this by setting up a directory in 
C:\Users\USERNAME\AppData.  Check that out and see if it helps.


73,
Brian, K0DTJ

On 1/28/2020 12:03, Bill Steffey wrote:
I am doing something wrong , I cannot seem to download current FW with 
kx3 utility...


What am I doing wrong ..


tnx


bill

14:58:39 Opening connection to ftp.elecraft.com
14:58:39 Copying files to C:\Program Files (x86)\Elecraft\KX3 Utility
14:58:39 FtpGetFile completed with error 0x0005: Access is denied.
14:58:39 Click "Close" to close this window
14:58:41 Ready
14:58:41 Firmware folder does not contain required KX3 firmware files
Click "Copy new files from Elecraft"
or navigate to a folder containing KX3 firmware files
14:58:41 Serial Port is closed
14:58:41 Attempting to contact KX3 on port COM4 at 38400 bit/s
14:58:42 KX3 MCU revision 02.90. RS-232 speed 38400 bit/s

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Re: [Elecraft] Possible K3 over shoot on transmit

[Brian Hunt]

I saw this problem with my K3 #4xxx and discovered a large voltage drop between 
the PS and K3 using the provided power cable. Cured the problem by:  1) shorter 
& fatter power cable, 2) increased the PS (Astron 30A linear) to 14.5v, and 3) 
running the K3 utility power calibration _twice_ back-to-back. Why it took 2x I 
don't know but it's been 100% fine ever since. 

73,
Brian, K0DTJ
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Re: [Elecraft] Feature density of portable transceivers: K1 vs. KX2

[Brian Hunt]

I got 25 or so removal/installs out of the KX2 battery before one of the power 
leads broke off where it entered the battery pack. I figured it was a 
manufacturing defect where the wire fatigued without support of the insulation. 

I replaced it with a 12v/5v 6 Ah lithium pack for about half of the cost of the 
internal pack. It gives me 4-6 hours of use at 10 watts. Not as convenient as 
the internal pack but it works for how I use my KX2. 

73,
Brian, K0DTJ

"Unless handled with a heavy hand, the bottom of the KX2 will withstand many, 
many removals and installs."
> 

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Re: [Elecraft] Looking for volunteer to design a tiny CW transceiver for socially isolated kids/teens

[Brian Hunt]

Back when Halted Specialties Company (HSC) was in business in the SF Bay 
Area I bought a PIXIE2e kit from them for $14.95.  It is a crystal 
controlled direct conversion transceiver using only a 2N oscillator 
and LM386 audio amp on a 1" x 2" PCB.  It came with crystals for 80m and 
40m.  RF output 200-300 mW with a 9v battery. I never built it and dug 
the kit out of my "archives."  I'd be glad to offer it up as a design or 
evaluation candidate.


73,
Brian, K0DTJ

On 10/17/2019 11:05, Wayne Burdick wrote:

Hi all,

Someone recently told me that he'd benefitted throughout his life from learning 
Morse code as a teen. Ham radio helped him cope. He's gone on to promote Morse 
because it can help kids with certain cognitive or social issues. Such problems 
are exacerbated by social media, these days. We all know of teens who've ended 
up ostracized or worse.

He was wondering what the ham community may be able to do for them.

I proposed a simple ($5-$10), unlicensed CW transceiver (kit or assembled or both) that 
would put out maybe 1 milliwatt. It would serve as a code-practice oscillator for solo 
use. But with a short wire hanging from the PCB, kids could work "DX" -- like 
across a room, or better yet, outdoors.

This got his attention. I went on to describe a scenario that he found very plausible, 
based on his experience with Morse advocacy: You hand kids the little modules (just a PCB 
with a built-in 4x AAA battery pack, code key, antenna wire, and cheap earbuds), and ask 
them to try sending/receiving a few letters. The complete code would be silkscreened onto 
the PCB. After they try this, you say, "Now see how far apart you can get and still 
copy you friend's signal." This is where the magic happens, at least for those of us 
who have been leveraging action-at-a-distance ourselves for many years :)  It takes 
things a step beyond ordinary code practice. Connects kids to other kids. At best it 
could serve as a bridge to a world outside themselves.

I'm picturing the little rig as SA602 based, with one crystal for TX and one 
for RX, running so little power than licensing is a non-issue. Frequency? TBD. 
Something available in cheap fundamental crystals from Digikey. Each one would 
have its crystals offset slightly from the others, so the effect of having a 
number of them in one room might be a bit like being on a crowded CW band. 
Picking out the pitch of a signal of interest and copying it is a skill many of 
us have learned. I'm sure kids who are motivated would be able to do it as well.

It should not have debilitating clicks or thumps when keyed. The only control 
should be for volume. It should be full break-in, which at this power level is 
easily obtained.

This is a project I would gladly take on myself if not for my 
greater-than-full-time commitments to Elecraft products. I'm hoping there's a 
tinkerer out there with more free time who could start from a minimal 
description and design the little rig.  The gentleman I spoke to has been 
frustrated over the years in trying to get his message out, and in trying to 
find ways to take Morse code to a wider range of kids. He felt that this idea 
had a lot of merit.

If you're interested in this project, or know of something that matches this 
description that's already available, please contact me directly.

73,
Wayne
N6KR

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Re: [Elecraft] KX2 Gen coverage rcvr

[Brian Hunt]

I've found the memories to be a good way of band hopping. I have all the ham 
bands /modes programmed plus WWVs and the centers of SWBC bands. This is easy 
to do with the K3 memory editor download from the Elecraft website. Works for 
K3, K3s, KX3 and KX2. 

73,
Brian, K0DTJ

> On Sep 29, 2019, at 08:51, Bob Conder via Elecraft  
> wrote:
> 
> Really basic question: what's the best way to set up the KX2 as a general 
> coverage receiver?TNX de K4RLC Bob
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Re: [Elecraft] Rhombic antenna "gain"

[Brian Hunt]

Not true. The KFS receive site building and some antennas are still there and 
being used for "something".  In fact there is a web SDR hooked to the big log 
periodic. 

73,
Brian, K0DTJ
HMB, CA

> 
> KFS -- all gone now, not even buildings are left.


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Re: [Elecraft] AX1 Loaded Whip Antenna - Elevation and

[Brian Hunt]

I think you'll find that for a short vertical radiator and a single 
counterpoise wire the maximum radiation is in the direction of the wire. EZNEC 
confirms this and I've tested it with a friend the length of California on 40 m 
where with the counterpoise pointed away from him I could barely copy him, 
flipping the wire 180° brought his signal up significantly. He saw the same 
thing on his end. 

73,
Brian, K0DTJ

> On Aug 26, 2019, at 18:26, David Gilbert  wrote:
> 
> 
> I think users of the AX1 would be better off thinking of IT as the 
> counterpoise, and making the most out of what they normally consider to be 
> the counterpoise wire.
> 

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Re: [Elecraft] KXPA100 Question

[Brian Hunt]

Just out of curiosity, is the serial speed set to 38400?  Running slower would 
make a difference. 

73,
Brian, K0DTJ

> On Aug 18, 2019, at 15:41, Grant Youngman  wrote:
> 
> I fiddled with it a bit, and really didn’t notice any major changes in how 
> the PX3 controls function.  Not that there aren’t any.
> 
> The simple solution is to simply set PA Mode: Off when generally tuning 
> around.
> 
> Grant NQ5T
> KX3 (8342)/KXPA100
> 
> 
>> On Aug 18, 2019, at 5:30 PM, Donald Wines  wrote:
>> 
>> Grant,
>> 
>> Something else I've noticed since getting the KXPA100 is the Select knob on 
>> the PX3 gets flaky if it's turned too fast. It seems to work fine if you 
>> turn it slowly. For instance when setting the Ref Level if the Select 
>> control is turned very fast the display just jitters and doesn't change the 
>> level. But when turned at a very slow rate the level changes appropriately. 
>> I didn't notice this behavior before I put the KXPA in line.
>> 
>> You might try that and let me know what happens.
>> 
>> Thanks,
>> Don, K5DW
> 
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Re: [Elecraft] K3 - MixW interfacing

[Brian Hunt]

Do you have any software on the laptop that communicates with the K3?  Download 
and install the K3 Utility from the Elecraft website to test the connection. 
You'll want it anyway for firmware updates and calibrations. 

GL & 73,
Brian, K0DTJ
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Re: [Elecraft] KX3 ATU Not Tuning

[Brian Hunt]

In my experience 25.4:1 denotes an open or possibly shorted antenna connection 
or a failed SWR measurement circuit. What happens if you bypass the ATU and 
transmit (or tune) into a known load?  Do you get an expected SWR?

73,
Brian, K0DTJ

> On Aug 11, 2019, at 12:11, Aaron  wrote:
> 
> Any other ideas on the tuner?
> It is still not tuning, and it just says 25.4:1.
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Re: [Elecraft] Dedicated FTx Rig

[Brian Hunt]

Sorry, try again.  

There was a fellow on the Facebook KX2 group who described an WSJT setup 
consisting of a KX2, RPi3 and an iPad. Pretty slick and light weight and with a 
little repackaging could be an all-in-one. 

73,
Brian, K0DTJ

> On Aug 10, 2019, at 13:40, David Gilbert  wrote:
> 
> 
> I'm certain this is not an original idea, but I wonder if somebody will ever 
> come out with a dedicated all-in-one notebook-sized portable rig for the 
> FT-type digital modes.  I'm pretty new to FT8/4 but I find it interesting 
> that when I'm operating it all I ever do with my K3 is turn it on and make 
> band changes since everything else is done on my computer.  I wouldn't even 
> need to do that much on the K3 if WSJT-X had a button to make band changes.
> 
> 

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Re: [Elecraft] Dedicated FTx Rig

[Brian Hunt]

> On Aug 10, 2019, at 13:40, David Gilbert  wrote:
> 
> 
> I'm certain this is not an original idea, but I wonder if somebody will ever 
> come out with a dedicated all-in-one notebook-sized portable rig for the 
> FT-type digital modes.  I'm pretty new to FT8/4 but I find it interesting 
> that when I'm operating it all I ever do with my K3 is turn it on and make 
> band changes since everything else is done on my computer.  I wouldn't even 
> need to do that much on the K3 if WSJT-X had a button to make band changes.
> 
> Possibly such a unit might look like:
> 
> 1.  12 volt operation (10 watts output) for portable use
> 
> 2.  large enough screen to be practical
> 
> 3.  running modified (mouseless) version of WSJT-X  to allow up/down arrow 
> keys for:
> 
> a.  band selection
> b.  frequency change in 2 KHz increments
> c.  mode selection
> d.  contact selection from activity window
> e.  TX1-TX6 sequence override
> f.   transmit enable/disable
> 
> 4.  a button to momentarily press for log, press/hold to autolog
> 
> 5.  USB port to run modified WSJT-X from flash drive for easy upgrade and log 
> transfer
> 
> 6.  internal antenna tuner (could be manual)
> 
> 7.  etc.
> 
> Rigs dedicated to specific modes have never been very popular, but I suspect 
> that FTx might change that and I suspect an integrated low power SDR version 
> could end up being fairly inexpensive.  A side advantage is that audio levels 
> would be preset in hardware and we'd see less overdrive situations.  ;)
> 
> Anybody know if there is already something like this out there?  I can find 
> small inexpensive transceivers designed for FT8, but they still require a 
> separate computer.
> 
> Just some ramblings on a rainy day ...
> 
> 73,
> Dave   AB7E
> 
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Re: [Elecraft] The Night of Nights

[Brian Hunt]

They are also QRV each Saturday starting about 1830z. K6KPH is workable too. 
See www.radiomarine.org for times and frequencies. 

73,
Brian, K0DTJ
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Re: [Elecraft] KX2 Display

[Brian Hunt]

Jim -

I'm not sure this will help but here goes

I have KX2 SN 11xx with current firmware loaded:  uC 2.89, DSP 1.52.  
I've reviewed all the update information and there doesn't appear to be 
any changes that would modify the behavior of the DISP function.  Mine 
works as described on page 23 of the KX2 manual Rev. A5 dated May 28, 
2916: Special VFO B Displays -- Tap the DISP button and rotate the OFS/B 
knob to display the various parameters available.  The "Log" function 
was added in uC 2.77 and isn't covered in my manual version but works as 
described in the Firmware Notes for that release.


You could consider reloading the firmware fresh from the Elecraft site 
or call Elecraft support and pose the question to them.


73,
Brian, K0DTJ

On 7/7/2019 08:10, Jim Danehy wrote:

I have owned my KX2 for some time now. I am now just now getting it on the
air. I have a problem that I can not resolve. I have spent a few hours
attempting to do that.

When I try to bring up the DISPLAY function it does not work. The same
button when held does work. Just the DISPLAY does not respond as it is
supposed to do.




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Re: [Elecraft] Possible issue with K3 Line In port?

[Brian Hunt]

Try changing the bar graph on the K3 from power to ALC by doing a hold of the 
DISP button then transmit. Check to see if the level is set properly, i.e. 4 
bars with the fifth flickering. If not try setting the line-in gain to that 
level. GL

73,
Brian, K0DTJ
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Re: [Elecraft] K3S soundcard after Windows 1809 update

[Brian Hunt]

In Win10 settings, go to System/Sound.  Under Advanced Sound Options 
check Microphone privacy settings and turn on "Allow apps to access your 
microphone."  This bit me until someone posted the solution here.  GL

73,
Brian, K0DTJ

On 6/13/2019 12:34, Jim N7US wrote:

After the update to Windows 1809, Windows isn't seeing the line-out CODEC of
my K3S.  It recognizes the line-in one just fine.  Any suggestions would be
appreciated.  Thanks.

  


Jim N7US


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Re: [Elecraft] Setting up FLDIGI on K3s

[Brian Hunt]

Download and install FLRig. Setup is straight forward and they support K3 (and 
maybe KX3 but since they're all the same command language, K3 should work). 
FLRig implements CAT control eliminating the need to use VOX. HTH

73,
Brian, K0DTJ
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Re: [Elecraft] Legacy = Low Latency: FSK-D mode

[Brian Hunt]

Wayne, your write up takes me back to growing up in the late 40s when my dad 
worked for Ma Bell and would take me into the 'office' occasionally. The most 
fascinating I ever saw was the print head on the TTY machine bobbing around 
printing out lines of text. 

Thanks for the FSK D capability. I've quickly worked several DXpeditions with 
it. 

73,
Brian, K0DTJ

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Re: [Elecraft] Why are the batteries internal to the KX3?

[Brian Hunt]

There are many LiPo battery packs available on Amazon for good prices. I bought 
a "12v"  6000mAh which is really 11.1v and has USB charging port. It came with 
charger and KX2 compatible cable. It will run the KX2 for several hours at 10w. 
It's about the size of a paperback book (if you remember those). 

73,
Brian/ K0DTJ
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Re: [Elecraft] KAT 500 and open wire

[Brian Hunt]

Electric fence insulator tubes 4" long. Drill each end for #14 THHN stranded. 
3.5" spacing gives Zo= ~550 ohms. Box of 200 on Amazon for $16. 

73,
K0DTJ
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Re: [Elecraft] KAT3A & KIO3B Upgrade for my K3

[Brian Hunt]

I bet the KEY macro in N1MM+ would work. Purely speculation on my part since I 
haven't tried it but it works fine for CW. 

73,
Brian, K0DTJ
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Re: [Elecraft] KAT 500 and open wire

[Brian Hunt]

I learned a lot about my low band antenna system by building a full model of it 
using EZNEC and SimSmith. It enabled me to learn where the losses were band by 
band and resulted in a few changes. On 80m SimSmith said the loss in the 450 
ohm was high because of the specific type I was using. It needed replacing 
anyway so I home brewed a length of ladder line and picked up over a dB. YMMV. 

73, Brian, K0DTJ



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Re: [Elecraft] K3 Standard internal Noise

[Brian Hunt]

I've seen that. Does putting your hand on top of the P3 change it any? Mine 
did. Anyway it seems to be related to the BNC cable to the K3. I put a new 
cable in and jiggled it some and it went away. If it comes back l'll build my 
own cable with quality connectors and double shielded cable. YMMV

73,
Brian, K0DTJ

> On Jan 3, 2019, at 05:20, Leroy Buller  wrote:
> 
> I am trying to trace down a noise on 40 meters, but it seems to follow the
> VFO.  On the P3, the noise is a gradual jump that is 6 khz wide.  After the
> vfo is not used for a while, the noise disappears.   

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Re: [Elecraft] KX3 running warm even at very low power out

[Brian Hunt]

During transmit your PA current will increase even with no power out due 
to biasing of the final PA devices.  On my KX2 current draw goes from 
135 mA (RX) to 500 mA (TX) just by hitting the XMIT button but with no 
key down.  Over the 2 minute TX cycle of WSPR that will heat up the heat 
sink a bit.  But that's normal.  HTH


72,
Brian, K0DTJ

On 12/6/2018 12:50, Mike Parkes wrote:

I have been experimenting with WSPR mode at 2-10 milliwatts of power out as
measured by the WM-2 wattmeter. I notice that the back of the KX3 heat
sinks are still fairly warm to the touch at such low power. It surprises me
that the finals would still get that warm at this level of power out. Is
that normal? I don't want to damage the radio tryin mg to xmt very low
power! :)... I have nothing to compare to except it feels at least as warm
as it did at 1 or 2 watts out. (I am using the power level output from
WSJT-X to set the power out to levels lower than what the KX3 can show
which is limited to 100 mW.)
Mike AB7RU



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Re: [Elecraft] KAT500 as a remote-controlled tuner

[Brian Hunt]

I've been looking at this very issue as part of a project to QRO on the 
lower bands.  I currently have an MFJ autotuner at the end of a 130 ft 
coax run out to the garden.  My low band doublet is fed with a balun and 
ladder line from there.  It's really impractical to run the AUX cabling 
out and back as indicated in the KAT500 manual.  But it may be practical 
to run a keying line out and back and a serial line as Wayne indicated.  
Would the key line need buffering with that long a run?  A total of 5 
wires required. A CAT-5 cable could provide a twisted pair for each  
signal line to avoid RFI.  Power for the KAT500 could be provided using 
a bias-T arrangement as I do now.  Any other thoughts/considerations?


73,
Brian, K0DTJ

On 11/3/2018 08:00, Don Wilhelm wrote:
With a remote KAT500, it is still necessary to connect the AUX cables 
as indicated in the KAT500 manual for use with the K3/K3S and KPA500. 
Alternately, if used in the basic mode, the Keying cable must go first 
to the KAT500 and from the KAT500 on to the amplifier.  That allows 
the KAT500 to prevent keying the amplifier while tuning.


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Re: [Elecraft] Winlink Express + K3S

[Brian Hunt]

When calling to connect with winmor you will always get the timeout 
message until the called station responds.  Once it connects the error 
message should go away.  It drove me nuts for a while. :-) FWIW, I use 
the CAT command option for PTT so I don't have to remember to set the 
PTT-KEY menu.  Seems to work fine.  Note:  K3 and external USB sound 
card used here with Win10 desktop PC.  HTH


73,
Brian, K0DTJ

On 10/10/2018 22:42, Nicklas Johnson wrote:

Somewhat related to my other post, but sufficiently different that I
figured it should be its own thread: I consistently get the "Timeout in T>R
Latency Measurement" message from Winlink Express using the built-in
software Winmor TNC.

After some poking around and trying different things, I set up the K3S to
do PTT on RTS, made sure the TX delay was as short as possible, configured
Winlink to use RTS for PTT, and as far as I can tell, the switching is very
fast... but Winlink is still not happy about it.  I tried VOX as well, but
it seemed like latency should be less with RTS for PTT.

I used to get the Timeout error on my KX3 on the first transmit, but
subsequent transmissions always worked fine.

Has anyone had more success with Winlink with the K3s and with avoiding
this Timeout message?

Nick



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Re: [Elecraft] Hurricane comms?

[Brian Hunt]

The Hurricane Watch Net was active most of yesterday on 14325 and 7268.  
They were soliciting and passing weather observations from the area.  
Very well organized and directed nets.  I'm not hearing them this 
morning on 20m but it may be propagation conditions.  See here for more: 
http://www.arrl.org/news/arrl-headquarters-on-alert-for-hurricane-michael


73,
Brian, K0DTJ


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Re: [Elecraft] Elecraft CW Net Report

[Brian Hunt]

Hi Kevin,
I listened for you on 20m but heard, maybe an ESP dit or two. Roy had a big 
signal here, S9+ when I moved the beam around to him. Heard a few of the other 
check-ins too. Wayne was about S5 and watery with refraction over the hill. 

A dinner party took me away for the 5 o'clock session. 

That's all the news from HMB. See you next week. 

73,
Brian, K0DTJ

> On Sep 23, 2018, at 18:06, kevinr  wrote:
> 
> Good Evening,
> 
> The onset of fall seems to have helped propagation

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Re: [Elecraft] [KX3] Incredible 6 meter opening right now -- Western U.S.

[Brian Hunt]

Just worked N4SL (DN28) in MT on 50.145 SSB with my K3 @ 100w and a inverted V 
doublet - through 2 tuners, no less. Heard quite a few others but they have 
faded. First time on 6m Es. Great fun!

73,
Brian, K0DTJ
Half Moon Bay, CA
CM87

> 
> I was just hearing someone on 50.145, not solid but some words. Then he 
> signed and seems dead now. 
> 

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Re: [Elecraft] KX3 - Strange Behaviour

[Brian Hunt]

Did you have the NB on?  I've noticed on my KX2 (similar h/w and firmware) that 
using the NB with very strong signals close by will create all sorts of 
artifacts like CW being sent using a highly damped bell. Turn off the NB and 
it's clean as a whistle. HTH

73,
Brian. k0DTJ

>Our setup was in, unfortunately, a fairly high noise area. I was working 
> 20 CW. The noise level was S3, with times reaching S6. I believe, "normal" 
> would be closer to S1. And, of course, lots of signals all over the board 
> signal strength wise. Many of them very strong (10 to 20 over 9!). 

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Re: [Elecraft] FT8 using internal USB sound on the K3S

[Brian Hunt]

A recent update to Win10 - v1803 - changed the permissions and security 
surrounding "devices" including the microphone. You have to change setting to 
allow the "microphone" to access apps since Windows thinks all sound cards are 
microphones. This little "upgrade" drove me nuts for days before someone posted 
the solution here. 

This may well be your problem. GL!
73,
Brian, K0DTJ
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Re: [Elecraft] KX2 "SWR/RF" display in v2.89

[Brian Hunt]

You have to be in a mode other than CW, then tap the KYR-SP/MIC knob to 
switch between CMP/ALC and SWR/RF.  Enjoy!


73,
Brian, K0DTJ

On 5/28/2018 10:57, Steve Sergeant wrote:

I just upgraded my KX2 to v2.89 firmware, and discovered that I can no
longer get the "SWR/RF" scales to display when I transmit in any mode.
Perhaps I missed a release note that described this change, but I seemed
to remember that these scales were the default, and that the CMP/ALC
displays only appeared when setting transmit gain.

What am I missing, or have I found a bug?



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Re: [Elecraft] K3 Strange Power Output Problem

[Brian Hunt]

I ran into this today too, different frequencies though. I recently installed 
the KBPF3 module and have it enabled full time. I think what happened is the 
VFO-A frequency sets the BPF segment to be used and with the wide split, it's 
not the right one for the VFO-B TX frequency to use. Therefore you don't get 
enough drive through to the amplifier stages. The K3 will not switch BPF 
segments to go between RX and TX states. I got an ERR:TXG indicating something 
was afoul in the BPF setup. 

I tried to set the KBPF3 to 'not installed' but botched it since I didn't 
remember you had to cycle K3 power to reconfigure that option. By then NSS had 
faded into the noise. Oh well, got 'em on one band.  

73, Brian, K0DTJ
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Re: [Elecraft] N1MM & KX2

[Brian Hunt]

Since there is no RTS or DTR line into the KX2 you can't send CW or PTT that 
way. If you use a WinKeyer or similar you should be set. You can also send CW 
using the KEY macro command but you have to edit the NIMM+ .mc files to do so. 
GL&73, 
Brian, K0DTJ

> On Apr 13, 2018, at 08:35, Robert 'RC' Conley  wrote:
> 
> ANY ISSUES using them together
> 
> -- 
> The Morse be with youLive Long and Prosper
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Re: [Elecraft] K3 apparent PA failure

[Brian Hunt]

Have you tried doing a TX GAIN calibration?  It will likely fail given what you 
are seeing but it's another step to try. 

GL & 73,
Brian, K0DTJ

> On Apr 9, 2018, at 18:11, Martin Sole  wrote:
> 
> Hi,
> 
> I can see output at the XVTR OUT jack. Using direct input on the LP-100A 
> meter it shows output varyng in sympathy with the output level control  and a 
> setting of L 1.00 gives pretty much 1dBm on the LP-100A. Lowest I can read is 
> around -12dBm and highest about +3dBm before the K3 switches to H 0.1. Then 
> on the main ant jack I see nothing.
> 
> I'm thinking this has to be somewhere between the input to the LPA and the 
> output.
> 
> Does the SWR bridge need to see some output? Just wondering if something were 
> fried in the the bridge so it's feeding nothing back to the measuring circuit 
> does that cause the PA chain to essentially shut down?
> 
> Martin, HS0ZED
> 

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Re: [Elecraft] K3 Apparent PA failure ?

[Brian Hunt]

Do you have a saved CONFIG file you can reload?  Maybe those data got garbled 
by the nonstandard shutdown?  GL!

Brian, K0DTJ



> On Apr 9, 2018, at 08:31, Martin Sole  wrote:
> 
> Hi,
> 
> My K3 died today, somehow. The radio works fine on receive and appears to 
> transmit just there is no power indication on my external meter or on the 
> front panel when pressing TUNE. There is ALC indication but no power out 
> indication.The only thing I did different was to switch off the supply before 
> the radio, something I normally never do. Having noted others having issues 
> with that I reloaded the firmware. Still no output. Starting to think that 
> somehow the PA is fried or possibly the driver as there is nothing from the 
> 10 watt PA either. Tried turning the power down and putting the KPA3 into 
> bypass. Still no power output. Not sure what else to try before I tear into 
> it. Was going great, worked 3B7A on 3 bands today no problem.
> 

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Re: [Elecraft] K3 powers off when after several minutes of 12W carrier

[Brian Hunt]

My K3 is #4113 factory assembled and delivered in April 2010. I'm pretty sure 
the bottom cover had never been off when I did the update mods a couple months 
ago. That's when I asked Elecraft support about it and I assumed it had been 
added to later #s. I've never had any issues but run mostly CW at either 5 
watts or 100 watts. 
73,
Brian, K0DTJ

> On Mar 28, 2018, at 18:02, Mark E. Musick  wrote:
> 
> When I built K3 serial #3505 in September of 2009, the kit had thermal pads
> for the LPA transistors.
> 
> Mark, WB9CIF
> 

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Re: [Elecraft] K3 powers off when after several minutes of 12W carrier

[Brian Hunt]

For folks who run lots of high duty cycle modes, Elecraft is now recommending 
'thermal pads' between the LPA transistors and the bottom cover. I found this 
out when I was doing some mods to my 10yo K3 and the instructions said to 
install them and I didn't have 'em. You can get them from Elecraft, not 
expensive. 

73,
Brian, K0DTJ
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Re: [Elecraft] K3 internal connectors

[Brian Hunt]

My K3 is also from 2010, April as I recall. I recently did the component mods 
you mentioned except for the KREF3 and KPOD resistors. Also I added the general 
coverage BPF board with 472 kHz in mind. I added the new synthesizer as soon as 
it came out. It all went very well and only took a few hours, stretching it out 
to prolong the fun of getting my fingers into my factory built K3. :-)

Add to your list the suggested thermal pads under the LPA transistors. These 
are recommended if you do a lot of 100% duty cycle transmitting. 

Good luck & 73,
Brian, K0DTJ

> On Mar 23, 2018, at 06:53, ke9uw  wrote:
> 
> My K3 was purchased in 2010 which seems to avoid most of the early required
> mods. 
> 
> 

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Re: [Elecraft] 630m on K3/S

[Brian Hunt]

A properly equipped K3 or K3S is a good receiver on 630m and as Don pointed out 
will produce 0.5 mW from the Xverter interface. I've made the mods and checked 
the output on my 10 year old K3 and it's good to go. 
There are several amplifier designs on the web that will give 50-100 watts 
output and I think a few commercially available amps as well. Probably some 
adaptation needed for the K3 output tho.
The real bugaboo is the antenna. A resonant small multi-turn loop is good for 
receive. The transmit antenna needs a big hi-Q loading coil and as much wire as 
you can get into the air. That's my sticking point at the moment. 
I think it's a real opportunity to get back to basics. 
73,
Brian, K0DTJ
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Re: [Elecraft] K3S and Winkeyer

[Brian Hunt]

You can use DTR keying as described in the thread or you can use the "KEY" 
macro in N1MM+ via the serial port CAT interface. I use DTR with my K3 but 
since DTR keying isn't implemented on the KX2, I use the macro. When using the 
macro the speed is that set on the K3 keyer and can be interrupted with the 
paddle. I have an example .mc file I can send if interested. 

73,
Brian, K0DTJ

> On Feb 21, 2018, at 17:52, Bill DeVore  wrote:
> 
> I’d like to start contesting and plan on using N1MM with my K3S. Is there any 
> advantage on adding a Winkeyer to the mix?
> 

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Re: [Elecraft] Right paddle on my KXPD2 issue

[Brian Hunt]

I have experienced this too. Cleaning the contact with a small strip of paper 
helps for a while. I'm wondering if the contact closure current may be too low 
to overcome the slight surface corrosion that develops over time. 

When not in use I store the KXPD2 in the mesh pocket of the CS-40 case. 

Adjusting the contact spacing narrower allows less travel and seems to make the 
problem worse, widening it makes it better but doesn't eliminate the problem. 

73,
Brian, K0DTJ

> On Feb 11, 2018, at 05:56, Tommy  wrote:
> 
> Hi folks,
> 
>  The right paddle seems to work intermittently on my KX2 paddles. I have 
> to hit it several times to get it to work but even then it's random. I tried 
> moving the adjustment for it in a bit but it makes no difference.
> 

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Re: [Elecraft] Elecraft K3s with SUB RX and P3

[Brian Hunt]

There is a P3 menu item called "Turn VFO B cursor on/off".  I don't have 
the subreceiver to check but I think that will do what you want.  GL

73,
Brian, K0DTJ

On 2/10/2018 14:17, Graziano Roccon wrote:

Hello to all,

i just installed the the KRX3A in my K3s.
Maybe is normal, but i can't see the "red bar" of second VFO on the P3
screen, except when i activate the split.
Sound strange to me, also if in effect a visual indication is useful when
you are transmitting on another frequency.
I think it would be interesting to see always the "red bar" for second rx
when you switch it on with the SUB key, isn't it ?
There is a way to do it ?

Thanks, best regards, 73's de iw2noy.



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Re: [Elecraft] Firing up K3 attached to PC via USB

[Brian Hunt]

Yeah, unfortunately it is.  It's Windoze checking out the serial port 
connection.  You can avoid the problem by setting CONFIG:PTT/KEY to 
OFF/OFF.  I have one of the PF keys programmed to access that menu item 
so I can set it up on the rare occasions I use computer keying (N1MM+).


Sorry I mashed the send button before signing off.

73,
Brian, K0DTJ

On 2/8/2018 14:52, John_N1JM wrote:

When firing up my PC with K3s attached and on, the K3s trips into transmit a
couple of times. Is that normal?

73, John N1JM



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Re: [Elecraft] Firing up K3 attached to PC via USB

[Brian Hunt]

Yeah, unfortunately it is.  It's Windoze checking out the serial port 
connection.  You can avoid the problem by setting CONFIG:PTT/KEY to 
OFF/OFF.  I have one of the PF keys programmed to access that menu item 
so I can set it up on the rare occasions I use computer keying (N1MM+).


On 2/8/2018 14:52, John_N1JM wrote:

When firing up my PC with K3s attached and on, the K3s trips into transmit a
couple of times. Is that normal?

73, John N1JM



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Re: [Elecraft] Mail system outage

[Brian Hunt]

Taking the long path no doubt :-)
73,
Brian,K00DTJ

> On Feb 4, 2018, at 12:03, kevinr  wrote:
> 
> I expect you'll see three Elecraft CW Net announcements this week.  The first 
> one is in limbo as is the second.  The third finally got through intact.  I 
> have no idea what happened to announcements 1 & 2.  They'll probably show up 
> in a day or two.
> 
>73,
> 
>   Kevin.  KD5ONS
> 

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