Re: [Elecraft] March/April NCJ

[Bill Coleman]

> On Mar 13, 2021, at 3:48 PM, Dr. William J. Schmidt  
> wrote:
> 
> I had a similar thing happen after purchasing an antenna switch of well-known 
> brand. I didn't try the switch before it went to the top of the tower but I 
> quickly found that one position had a bad relay.  I was able to use another 
> position to get the thing working.  I posted on eHam and rated it below 
> average in quality because I expected a switch... something so simple... to 
> work out of the box.  I quickly received an email from the manufacturer 
> berating me, suggesting it was my fault for the switch failing for being just 
> another dumb ham (yes, for a simple 12V switch), and that my review would 
> "ruin his business".  This went on for some time, but I did not bend to such 
> rude tactics in favor of the truth

With this kind of attitude, this person will never have any customers.

A real serious businessman would have redoubled their efforts to find out how a 
faulty switch made it out of QA, contacted the customer and apologized for the 
difficulty, and offered to replace the faulty switch with a working model.

I don’t see how threatening customers is a good business model. 


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] March/April NCJ

[Bill Coleman]

> On Mar 13, 2021, at 1:52 PM, Wes  wrote:
> 
> Based on the QC issue I rated it a four stars. I almost immediately got an 
> email from the company in which I was accused of improperly storing the 
> antenna and all sorts of other things.  It was also claimed that anything 
> less that five stars would ruin their business, etc.  I sent photos of the 
> tubing and heard back that this was impossible, it's never happened before 
> and so on and so forth. 

Based this type of response, I would have revised my rating to three stars and 
stood firm.

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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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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[Elecraft] K3/0 Mini

[Ed G]

Hello,
 Will the K3/0 Mini remote control work with the K4?  I suspect not but 
thought I would ask.
--Ed, N3CW—




-- 
This email has been checked for viruses by Avast antivirus software.
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Re: [Elecraft] K3S KTCXO3-1 possible problem

[Hank via Elecraft]

Anyone tried one of these?
https://www.ebay.com/itm/KTCXO-3-Compatible-Elecraft-K3-TCXO-1-PPM-High-Stability-Ref-Osc-Compatible/182814802678?hash=item2a909c82f6:g:7qsAAOSwWr5Z2Y7t

73,
Hank
K4HYJ


- Original Message -
From: Mike Cizek W0VTT (mgci...@gmail.com)
Date: 03/09/21 15:02
To: Gary Peterson (kzer...@gmail.com), elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S KTCXO3-1 possible problem

Hello Gary,

Elecraft reported having problems with the TCXOs a while back.  Mine isn't very 
well behaved, either, but it stays within a few Hertz compared to WWV on 10 MHz.


73,
Mike Cizek W0VTT

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Gary Peterson
Sent: Tuesday, 9 March, 2021 13:40
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3S KTCXO3-1 possible problem

I have a K3S, purchased factory built, February 2019.  This included the 1 ppm 
TCXO3-1-F option.  

A few months later, I noticed that SSB signals heard on 50.125.000 MHz all 
sounded a bit off frequency.  Hence, I performed a reference oscillator 
calibration, using method 2.  Because of my relatively short distance to WWV, 
the variability in the signal strength made its use difficult.  Instead, I used 
a GPS disciplined TCXO as my 10 MHz standard.  The GPSDO had been on for 
several hours before any calibration and the transceiver had been on for, at 
least, three hours.  The frequency display on the K3S was set to 10.000.000 
MHz.  Beats were displayed on a Weston VU meter, driven by an opamp, connected 
across the external speaker output.  This allows beats to be easily seen, that 
are less than one per second.

The REF CAL as received from the factory was 49.379.766 On 7/10/2019, I changed 
the REF CAL setting to 49.379.448  (I chalked this change up to possible 
crystal aging.) On 11/30/2019, the REF CAL setting was changed to 49.379.110 On 
3/1/2020 the REF CAL setting was changed to 49.378.926 On 1/16/2021 REF CAL was 
changed to 49.378.495 On 1/30/2021 REF CAL was changed to 49.378.484 On 
2/22/2021 REF CAL was changed to  49.378.508 (the first time the setting has 
been increased)

I have also noticed a change of several Hz in the beat note between the 
transceiver having been on for half an hour and having been on for three or 
four hours.  This seems odd behavior to me for a high stability, 1 ppm TCXO.  
The transceiver is in a room, with a temperature of 70, plus or minus, 3 
degrees Fahrenheit.  There is nothing on top of the transceiver and there is 
plenty of space below, behind and on either side of the radio.  There are no 
other heat sources near the transceiver.  

Am I being overly critical, or do you think this is unusual behavior for a 
KTCXO3-1?

I posed this question to Elecraft tech support.  The reply did not address my 
question as to whether this KTCXO3-1 is misbehaving.  The reply only said that 
“We have no KTCXO3-1 and have no orders to restock at this time.”  The tech, 
who replied, also gave me sourcing information for, apparently, the oscillator 
part on the board.

Thanks in advance for any time taken to reply to my post.

Gary, KØCX







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Re: [Elecraft] FW: Elecraft K3/P3 last-time order

[Paul GACEK via Elecraft]

It’s on Elecraft’s web site to make it even easier for us.

https://elecraft.com/products/k3s-transceiver

Paul

> On Apr 20, 2021, at 9:20 AM, w4sc  wrote:
> 
> Several months ago there was a request for “Who is interested” in K3/K3S  
> modules and accessories.  I suspect if you did not express an interest, you 
> may NOT have received the latest email of Monday 19 April with the link to an 
> order page for making a half or full deposit on the items planned for “last 
> build” activity.  I don’t see this link on the Elecraft site, though it may 
> appear later.
> 
> Ben W4SC
> 
> Sent from Mail for Windows 10
> 
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[Elecraft] Elecraft K3/P3 last-time order

[Jim H via Elecraft]

Hi,Full Duplex is TX and Rx at the same time, but on different freqs, A 
repeater is full duplex. Half Duplex is Tx OR Rx each different freqs and not 
at the same time. Your HH or mobile is Half duplex..One you missed is Simplex 
which is Tx OR Rx on the same freq. You HH or mobile can be simplex.73Jim 
HK7sss    In a message dated 4/20/2021 10:59:30 AM Pacific Standard Time, 
jasimm...@pinewooddata.com writes: 
What is the difference between 'half dupl' and full dupl'?

-de John NI0K
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Re: [Elecraft] Elecraft K3/P3 last-time order

[Don Wilhelm]

John,

Deposit 1/2 the price now, or deposit the full price.

73,
Don W3FPR

On 4/20/2021 1:57 PM, John Simmons wrote:

What is the difference between 'half dupl' and full dupl'?



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Re: [Elecraft] Elecraft K3/P3 last-time order

[John Simmons]

What is the difference between 'half dupl' and full dupl'?

-de John NI0K

Geert Jan de Groot wrote on 4/20/2021 5:13 AM:

I received a mail from Elecraft sales pointing to
https://elecraft.com/pages/k3-k3s-options

This is the next step for the last-time K3/P3 order - order what you 
want now or forget it!


Judging by the questions on list many people will still want to order 
something - this is the last chance..


73,

Geert Jan PE1HZG
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Re: [Elecraft] Miniature version of AX1 whip

[Wayne Burdick]

Correct. 2” loading coil, 45” whip. 

Wayne
N6KR


elecraft.com

> On Apr 20, 2021, at 9:52 AM, Lyn Norstad  wrote:
> 
> Gary -
> 
> I think he's talking about the length of the loading coil, not the whole
> whip.  So 2.0 inches would be appropriate.
> 
> 73
> Lyn, W0LEN
> 
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of n6...@outlook.com
> Sent: Tuesday, April 20, 2021 11:07 AM
> To: Wayne Burdick; Elecraft Reflector
> Subject: Re: [Elecraft] Miniature version of AX1 whip
> 
> Wayne,
> did you mean to write 2.0 inches for the length? Did you mean 2.0 feet
> (2.0')?
> 
> Gary
> 
> 
> From: elecraft-boun...@mailman.qth.net  on
> behalf of Wayne Burdick 
> Sent: Monday, April 19, 2021 6:13 PM
> To: Elecraft Reflector 
> Subject: [Elecraft] Miniature version of AX1 whip
> 
> I'm always trying to further shrink my KX2 station, especially for hand-held
> operation.
> 
> Recently I've been playing with a miniature base loading coil for the the
> AX1 whip. It's very rugged, but also really small:
> 
>   Length = 2.0" (1/3rd of the AX1)
>   Weight = 0.7 oz   (1/3rd of the AX1)
> 
> It takes up almost no room in a go-bag, making it a great backup for other
> antennas. Wind load is also greatly reduced -- that will help when using the
> AXB1 bipod.
> 
> Compared to the AX1 it will have a somewhat reduced max power rating
> (probably 10 W), and it only covers one band. On the other hand, it could be
> built for any band from 20 to 6 meters, and disassembles into two pieces
> like the AX1.
> 
> I consider it experimental at this point, and I'd love to get some feedback
> on the concept. We'll have some prototypes to send out sometime in the near
> future to a few volunteer testers.
> 
> Please contact me directly if you're interested.
> 
> 73,
> Wayne
> N6KR
> 
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Re: [Elecraft] Miniature version of AX1 whip

[Lyn Norstad]

Gary -

I think he's talking about the length of the loading coil, not the whole
whip.  So 2.0 inches would be appropriate.

73
Lyn, W0LEN


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of n6...@outlook.com
Sent: Tuesday, April 20, 2021 11:07 AM
To: Wayne Burdick; Elecraft Reflector
Subject: Re: [Elecraft] Miniature version of AX1 whip

Wayne,
did you mean to write 2.0 inches for the length? Did you mean 2.0 feet
(2.0')?

Gary


From: elecraft-boun...@mailman.qth.net  on
behalf of Wayne Burdick 
Sent: Monday, April 19, 2021 6:13 PM
To: Elecraft Reflector 
Subject: [Elecraft] Miniature version of AX1 whip

I'm always trying to further shrink my KX2 station, especially for hand-held
operation.

Recently I've been playing with a miniature base loading coil for the the
AX1 whip. It's very rugged, but also really small:

   Length = 2.0" (1/3rd of the AX1)
   Weight = 0.7 oz   (1/3rd of the AX1)

It takes up almost no room in a go-bag, making it a great backup for other
antennas. Wind load is also greatly reduced -- that will help when using the
AXB1 bipod.

Compared to the AX1 it will have a somewhat reduced max power rating
(probably 10 W), and it only covers one band. On the other hand, it could be
built for any band from 20 to 6 meters, and disassembles into two pieces
like the AX1.

I consider it experimental at this point, and I'd love to get some feedback
on the concept. We'll have some prototypes to send out sometime in the near
future to a few volunteer testers.

Please contact me directly if you're interested.

73,
Wayne
N6KR

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Re: [Elecraft] KBPF3A switching frequencies and performance

[w4sc]

Russ,

Unfortunately, it appears you may have a defective KBPF3A. (Modified KBPF3).  I 
actually see a slight increase in band noise below 1.7MHz with my K3S-100, 
which has KBPF3A installed.

Ben W4SC

Sent from Mail for Windows 10

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Re: [Elecraft] FW: Elecraft K3/P3 last-time order

[w4sc]

Several months ago there was a request for “Who is interested” in K3/K3S  
modules and accessories.  I suspect if you did not express an interest, you may 
NOT have received the latest email of Monday 19 April with the link to an order 
page for making a half or full deposit on the items planned for “last build” 
activity.  I don’t see this link on the Elecraft site, though it may appear 
later.

Ben W4SC

Sent from Mail for Windows 10

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Re: [Elecraft] Miniature version of AX1 whip

[n6...@outlook.com]

Wayne,
did you mean to write 2.0 inches for the length? Did you mean 2.0 feet (2.0')?

Gary


From: elecraft-boun...@mailman.qth.net  on 
behalf of Wayne Burdick 
Sent: Monday, April 19, 2021 6:13 PM
To: Elecraft Reflector 
Subject: [Elecraft] Miniature version of AX1 whip

I'm always trying to further shrink my KX2 station, especially for hand-held 
operation.

Recently I've been playing with a miniature base loading coil for the the AX1 
whip. It's very rugged, but also really small:

   Length = 2.0" (1/3rd of the AX1)
   Weight = 0.7 oz   (1/3rd of the AX1)

It takes up almost no room in a go-bag, making it a great backup for other 
antennas. Wind load is also greatly reduced -- that will help when using the 
AXB1 bipod.

Compared to the AX1 it will have a somewhat reduced max power rating (probably 
10 W), and it only covers one band. On the other hand, it could be built for 
any band from 20 to 6 meters, and disassembles into two pieces like the AX1.

I consider it experimental at this point, and I'd love to get some feedback on 
the concept. We'll have some prototypes to send out sometime in the near future 
to a few volunteer testers.

Please contact me directly if you're interested.

73,
Wayne
N6KR

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Re: [Elecraft] KBPF3A switching frequencies and performance

[w4sc]

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.  

I could hear relays’ switching at the 14.99 to 15.00 MHz boundary.  
This lead to making a list of (“suspected”) switching points by tuning from low 
1MHz through 30MHz listening  Looking at schematics of the KBPF3/A I  heard 
switching at some points that did not make sense, with the 14.99 to 
15.00 MHz boundary being one.

It is not easy to probe the KBPF3A in my K3S-100 to check which relays are bein 
set/reset because of the installed KRX3A.  I have a K3S-10, but will need to 
install a KBPF3/A to check the 14.99 to 15.00 MHz boundary and   gather 
the information. (PENDING)

de Ben W4SC

Sent from Mail for Windows 10

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Re: [Elecraft] FW: Elecraft K3/P3 last-time order

[Dr. William J. Schmidt]

Yes.  And the salient part of this is that I missed the email about taking 
deposits…  When did it go out?

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ 

 

Moderator – North American QRO Group at Groups.IO.

 

email:    b...@wjschmidt.com

 

 

From: Robie Elms  
Sent: Tuesday, April 20, 2021 10:37 AM
To: b...@wjschmidt.com
Cc: Elecraft Mail List 
Subject: Re: [Elecraft] FW: Elecraft K3/P3 last-time order

 

Bill,

 

They are taking deposits now.

 

Robie - AJ4F

 

On Tue, Apr 20, 2021 at 10:34 AM Dr. William J. Schmidt mailto:b...@wjschmidt.com> > wrote:

I must have missed that email...??  and I wondered when they would start
taking orders for the upgrades.  Anyway take note if you still want K3/K3s
parts before they are gone!


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ 

Moderator – North American QRO Group at Groups.IO.

email:  b...@wjschmidt.com  


-Original Message-
From: elecraft-boun...@mailman.qth.net 
  mailto:elecraft-boun...@mailman.qth.net> > On
Behalf Of Geert Jan de Groot
Sent: Tuesday, April 20, 2021 5:13 AM
To: elecraft@mailman.qth.net  
Subject: [Elecraft] Elecraft K3/P3 last-time order

I received a mail from Elecraft sales pointing to
https://elecraft.com/pages/k3-k3s-options

This is the next step for the last-time K3/P3 order - order what you want
now or forget it!

Judging by the questions on list many people will still want to order
something - this is the last chance..

73,

Geert Jan PE1HZG
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Re: [Elecraft] FW: Elecraft K3/P3 last-time order

[Robie Elms]

Bill,

They are taking deposits now.

Robie - AJ4F

On Tue, Apr 20, 2021 at 10:34 AM Dr. William J. Schmidt 
wrote:

> I must have missed that email...??  and I wondered when they would start
> taking orders for the upgrades.  Anyway take note if you still want K3/K3s
> parts before they are gone!
>
>
> Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
>
> Moderator – North American QRO Group at Groups.IO.
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On
> Behalf Of Geert Jan de Groot
> Sent: Tuesday, April 20, 2021 5:13 AM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] Elecraft K3/P3 last-time order
>
> I received a mail from Elecraft sales pointing to
> https://elecraft.com/pages/k3-k3s-options
>
> This is the next step for the last-time K3/P3 order - order what you want
> now or forget it!
>
> Judging by the questions on list many people will still want to order
> something - this is the last chance..
>
> 73,
>
> Geert Jan PE1HZG
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Message
> delivered to b...@wjschmidt.com
>
>
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[Elecraft] FW: Elecraft K3/P3 last-time order

[Dr. William J. Schmidt]

I must have missed that email...??  and I wondered when they would start
taking orders for the upgrades.  Anyway take note if you still want K3/K3s
parts before they are gone!


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ 

Moderator – North American QRO Group at Groups.IO.

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Geert Jan de Groot
Sent: Tuesday, April 20, 2021 5:13 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Elecraft K3/P3 last-time order

I received a mail from Elecraft sales pointing to
https://elecraft.com/pages/k3-k3s-options

This is the next step for the last-time K3/P3 order - order what you want
now or forget it!

Judging by the questions on list many people will still want to order
something - this is the last chance..

73,

Geert Jan PE1HZG
__
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delivered to b...@wjschmidt.com 


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Re: [Elecraft] KBPF3A switching frequencies and performance

[Russ Tobolic via Elecraft]

 Hi Knut:
I couldn't tell you if this is a new problem as I didn't notice anything amiss 
until I started checking switchover frequencies to answer W4SC's question.  I 
verified that the KBPF3 is enabled in the config menu.   I bought the used 
KBPF3 about 4-5 years ago from another ham and don't remember who it was.  It 
came with the instructions to modify it to the "A" version.  I can't remember 
if it was already modified or if I did it myself.  I do know that I did install 
the 220uF capacitor on the main board of the K3.  Arrrgh, I guess I'll have to 
tear everything apart to check if the mods were done correctly before 
proceeding.  Thanks for your information.
Russ, N3CO
On Monday, April 19, 2021, 09:04:58 PM EDT, ab2tc  wrote:  
 
 Hi Russ,

Your response made *very* curious so I checked out my own K3S. I can confirm
the two switchover frequencies you mention (1700 and 3300kHz), but observe
at most a couple of dB change when crossing the boundaries. I use an
external panadapter (LP-PAN/NaP3 connected to IF-OUT) so I can easily see
the same stations and noise while tuning across the boundaries. On the
1700kHz boundary the signals are a couple, maybe 3dB stronger when below
1700kHz. So it sounds to me that the filters in your KBPF3A are not being
switched in when it is supposed to be used. The KBPF3 needs to be enabled
(set to "nor") in the configuration menu. Have you checked that?

Hmm, I neglected to carefully read the last part of your post. It sounds
like your KBPF3A might be working above 4210kHz so may be just the 2 lowest
bands are defective. If you look at the schematic you see that those two
bands use the same filter but with some components switched in and out by
another relay (K2). So that could narrow the problem down to one relay (K1)
not operating. Is this a *new* problem or has it been like this since you
got the K3 or installed the KBPF3A?

Knut - AB2TC


Elecraft mailing list wrote
> Hi Ben:
> You had me curious with your request.  I started to check my KBPF3
> (modified to the "A") and noticed something that now bothers me.  I tried
> going down from 160M and it appears that the switch over to the AM
> broadcast band occurs precisely at 1700,000  Kc.  When I tune to  1.69
> the relays click.  But the anomaly(?) I am seeing at the switchover point
> is a big drop in the signal level.  At my QTH during the daytime the
> nominal noise level at 1700.000 Kc is about S7.  When I switch to 1.69
> the noise level drops to S2.  At the high end the switchover occurs at
> 2109.999+ with a drop in the noise level from S9+10 to S3.  I don't use
> the K3 for listening to AMBCB but only in the case of checking my 160M 
> receiving loops with some stations high in the AM Band.  I checked on 80M
> and got similar results.  At the low side the switch occurred at 3299.999
> with a drop in the noise level from S5 to S2.  On the high side the
> switchover occurred at 4209.999+ but here the noise level increased from
> S4 to S6. I don't know if this helps you any on at least these 2 bands. 
> If I get the time I'll try to check the rest.  Now I'm bothered by the
> changes in signal levels at the switchover points (ignorance is bliss). 
>  I wonder if anyone else has ever noticed this or do I have an issue with
> my KBPF3?
> 
> Russ, N3CO
>    On Friday, April 16, 2021, 12:39:28 PM EDT, w4sc 

> w4sc@

>  wrote:  
>  
>  Looking for details of switch over frequencies and expected performance
> of the KBPF3A in its various bands, 
> 
> There is improvement in the BCB and below 500KHz with the KBPF3A enabled,
> however the other SW BCB bands I have tried are lacking.
> 
> Has anyone measured the performance of the KBPF3A?
> 
> Ben W4SC
> 
> Sent from Mail for Windows 10
> 
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[Elecraft] Elecraft K3/P3 last-time order

[Geert Jan de Groot]

I received a mail from Elecraft sales pointing to
https://elecraft.com/pages/k3-k3s-options

This is the next step for the last-time K3/P3 order - order what you 
want now or forget it!


Judging by the questions on list many people will still want to order 
something - this is the last chance..


73,

Geert Jan PE1HZG
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