Re: [Elecraft] TX CW “splatter” - context -contests

[Jim Brown]

On 6/11/2021 9:22 AM, PHILIP ALLARDICE via Elecraft wrote:

I am using the term CW splatter to cover clicks, phase noise, IMD
  and  other hallmarks of a wide signal.


Clicks and what we have long called splatter ARE exactly the same 
mechanism -- intermod distortion of an amplitude modulated signal. In 
the case of CW, its 100% amplitude modulation of a carrier by a 
rectangular keying waveform. Phase noise is an entirely different 
mechanism.


73, Jim K9YC
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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

   Today was at or near 100% humidity, which drains my reactions and my 
brain.  Low blood sugar added extra dits, or whole words. Occasionally 
my mind would start spelling something else entirely. Soon we will 
switch to the dry season like those farther south so I get a reprieve.


   Medium to deep QSB made life interesting, there were a few summer 
storms out there causing problems too.  Roy described drought 
conditions.  I would not mind at all if these clouds of mine moved their 
way east.  They are wet enough to make the journey.  Steve alternated 
between ESP and S5 with rapid QSB. Dave found me right after the net and 
mentioned I had come up out of the noise.   On the next net Brian told 
me I had been ESP to him on 20, at best.  On forty he was S7 to me with 
mild QSB.  Jim came next with a fine signal from Idaho at 569 and slow 
QSB.  Dale tried to win the high temperature award but that had been 
taken by Roy.  Dwight was truly ESP.  I know he replied to one of my 
calls but I could not work him.  Forty meters was indeed moving as we 
progressed.


   When the rainy season breaks I will get back to antenna work. I want 
four choices by the time the snow falls.



  On 14050 kHz at 2200z:

K6XK - Roy - IA

W5TO - Robert  - TX

K4JPN - Steve - GA

AB9V - Mike - IN

W8OV - Dave - TX


  On 7047.5 kHz at z:

K0DTJ - Brian - CA

K7TXA - Jim - ID

K6PJV - Dale - CA

WM5F - Dwight - IA


   Until next week 73,

  Kevin.  KD5ONS


-


“Arthur Dent: What happens if I press this button?

Ford Prefect: I wouldn't-

Arthur Dent: Oh.

Ford Prefect: What happened?

Arthur Dent: A sign lit up, saying 'Please do not press this button again.”

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Re: [Elecraft] Are there any "bad radios"?

[Nate Bargmann]

Yes!

Heathkit HW-5400--run away

After that they're all fairly decent.

New ops will benefit most from understanding and learning to use the
attenuator, when to use the RF preamp (if controllable) or not, and
understanding and learning to use the RF gain effectively.  These are
the basics of about any receiver on the market today and should be
mastered.  After that other aspects of the receiver can be mastered.

73, Nate, N0NB

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Web: https://www.n0nb.us
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GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819

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Re: [Elecraft] [ELECRAFT] Are there any "bad radios"?

[Brian Maynard]

Great thoughts on radio purchases Geoff. I have owned all the major brands - 
kenwood, icom, yaesu, ten tec - at least 2x each - and got both great contacts 
and valuable learning time on every one. I now own a K3, KPA500, P3 and KAT500, 
which could be my last radio and that would be fine with me. If I can resist 
the pull of a K4!

Brian, K1NW
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[Elecraft] KAT500 Tuner antenna selection stuck in #2 position

[Andy Durbin]

"I cannot change the antenna selector via the front panel of the KAT500 or the 
utility software."

What was the KAT500 mode when you observed this problem?  There is a known 
firmware defect that may prevent enabled antennas being selected when mode is 
BYP.  The same problem does not exist if mode is MAN and state is Bypassed.  
Until this is fixed the solution is to avoid mode BYP (Mode MAN and state 
bypass is electrically identical).

73,
Andy, k3wyc
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Re: [Elecraft] KPA500 with Icom 7300

[Ad4K - Steven]

Thanks Ken.  Your advice is helpful. I have set the transmit delay to 15ms.

I have found lots of info on using the IC7300 with the KAT500/KPA500
combination but none on using the setup that I have, ie., IC7300 exciter, to
KPA500 with LDG AT-1000 Pro II autotuner.  I will make sure that I don't
pump full watts into LDG tuner during tuning (I will use only the IC7300 to
do the tuning) or not to present a high SWR to the amp.  As you know with
the IC7300, I use the "tune" button on the IC7300 and it limits the output
to 10 watts for the LDG tuner to go through its tuning cycles (the internal
tuner in the IC7300 is bypassed when wired to the LDG tuner).  I have tried
to get some responses in other forums but no luck.



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[Elecraft] Are there any "bad radios"?

[Geoffrey Feldman]

Having worked retailing amateur radios, people often ask which is best.
Also often they are absolutely convinced they know the answer because their
Elmer said so.   When I review what someone actually wants to do with the
hobby and get a sense of their budget, I can advise them.  A new Ham often
hasn't a clear idea what they want to do.  Knowing most of what is
available, there are no truly "bad radios" that would be unsuited for anyone
at all.  Not everyone can afford "the best".  Not everyone can use the best.
New operators may not even be able to manage a ton of fancier features. New
Hams may not know there is more to the hobby than whatever their Elmer has
locked on to (20+ years ago).   Life in an HOA or a city with much RFI
directs from most expensive and top of the line towards something portable.
The visibility provided by  a Pan Adapter function is especially important.
Personally I have a KX3, PX3, KXPA100.  I also own an IC 7300.  My
recommendations at work would tend to what I can sell of course.  If someone
knows what they want, they buy it.   I find too that upselling the radio is
not productive either.  Once someone has a radio they will need antennas,
feed lines, maybe a tuner, wire, rope, books, power poles, antenna analyzer
- all that stuff is the really great stuff J  Also, if someone gets a lot of
books, they will learn other aspects of the hobby and  get another radio and
the cycle repeats.

 

Geoff

W1GCF

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Re: [Elecraft] KPA500 Power Entry Module

[Tom Berry]

Thank you Walter, I'll give it a try.

73 Tom AA4VV


On 6/13/2021 1:50 PM, Walter Underwood wrote:

You should be able to order it here.

https://elecraft.com/pages/parts-order-form 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)


On Jun 13, 2021, at 10:41 AM, Tom Berry  wrote:

Does anybody know where I can get a power switch for the KPA500.
It's the power switch on the back of the amp.

Elecraft part number (Main Power Entry Module (Corcom)) E620184.

I have emailed Elecraft with no response.

Thanks
Tom AA4VV
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Re: [Elecraft] KPA500 Power Entry Module

[Walter Underwood]

You should be able to order it here.

https://elecraft.com/pages/parts-order-form 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 13, 2021, at 10:41 AM, Tom Berry  wrote:
> 
> Does anybody know where I can get a power switch for the KPA500.
> It's the power switch on the back of the amp.
> 
> Elecraft part number (Main Power Entry Module (Corcom)) E620184.
> 
> I have emailed Elecraft with no response.
> 
> Thanks
> Tom AA4VV
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[Elecraft] KPA500 Power Entry Module

[Tom Berry]

Does anybody know where I can get a power switch for the KPA500.
It's the power switch on the back of the amp.

Elecraft part number (Main Power Entry Module (Corcom)) E620184.

I have emailed Elecraft with no response.

Thanks
Tom AA4VV
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Re: [Elecraft] KAT500 Tuner antenna selection stuck in #2 position

[Phil Hystad via Elecraft]

I have had a similar problem and in my case I was not looking at the right spot
for adjusting the antennas.

There are two different spots when using the KAT500 utility.  The Operate menu 
selection and then also the Configuration\Antennas selection. 

In my case, the Operate page would not let me change the antenna (nor the 
KAT500) because the configuration of antennas was not set up properly.  I have 
no idea how those got changed since they had been OK before but I reconfigured 
the antenna selection options and saved the configuration and everything worked 
correctly after that.

73, phil, K7PEH


> On Jun 13, 2021, at 8:15 AM, kk4dx  wrote:
> 
> Anyone have this happen to them?
> I cannot change the antenna selector via the front panel of the KAT500 or
> the utility software. The utility software is working as I can remotely
> cycle through the modes, but the antenna selector is stuck. All antenna
> positions are checked (enabled) in the utility software and when I advance
> to another position, the software moves the selection back to #2.
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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[Elecraft] For Sale: Elecraft K1

[Doug Hensley]

The KAT100/KPA100 is sold as is the K2.

The beautiful little K1 is still available.

Cheers,

Doug W5JV




Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds.


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[Elecraft] KAT500 Tuner antenna selection stuck in #2 position

[kk4dx]

Anyone have this happen to them?
I cannot change the antenna selector via the front panel of the KAT500 or
the utility software. The utility software is working as I can remotely
cycle through the modes, but the antenna selector is stuck. All antenna
positions are checked (enabled) in the utility software and when I advance
to another position, the software moves the selection back to #2.



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] KRX3 Mod

[Dennis W1UE]

That answers my question.  The KBPF3 is not being installed into the
sub-receiver,
and the K3S already has the part installed on the main RF board.  So, no
mod is needed.

Thanks!

Dennis W1UE


On Sun, Jun 13, 2021 at 7:26 AM w4sc  wrote:

> The mod information is in the KBPF3A installation instructions.  It only
> required if you have a KBPF3A installed and want to RX VLF (i.e. 630M)
>
>
>
> Microsoft Word - E740265 KBPF3A Option Installation Rev A1.doc
> (elecraft.com)
> 
>
>
>
> de Ben W4SC
>
>
>
> Sent from Mail  for
> Windows 10
>
>
>
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[Elecraft] KRX3 Mod

[w4sc]

The mod information is in the KBPF3A installation instructions.  It only 
required if you have a KBPF3A installed and want to RX VLF (i.e. 630M)

Microsoft Word - E740265 KBPF3A Option Installation Rev A1.doc (elecraft.com)

de Ben W4SC 

Sent from Mail for Windows 10

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