[Elecraft] DIGTAL INTERFACE EA3BLQ

[Behiels Jean-Pierre]

Doug;


Did you not receive my previous E-mails ?
I try to contact you many times on many ways but no reply anymore ?

Regards Jean ON4AEF. 


-Original Message-
From: Doug Shields [mailto:w4...@comcast.net] 
Sent: vrijdag 17 februari 2017 03:49
To: 'Behiels Jean-Pierre' <jeanpierre.behi...@telenet.be>
Subject: RE: [Elecraft] DIGTAL INTERFACE EA3BLQ

Jean,
  I have two of the EA3BLQ board sets.  One set has the boards assembled
and the second set is unassembled.  I also have the specific connectors and
everything needed for a full installation of the boards.  Since I obtained
the boards I have acquired a K3 and do not want to do any mods to my K2.
Please let me know if either set interests you.  73.

Doug  W4DAS

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Behiels Jean-Pierre
Sent: Wednesday, February 15, 2017 1:48 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] DIGTAL INTERFACE EA3BLQ

Hi K2 users;

We all now that the digital interface realised especially for the K2 by
EA3BLQ in past,is SK despite !

A lot of time is gone,but are there some alternated suggestions,about the
building concept of EA3BLQ.

I can imagine that someone has continues his PCB art work for further K2
digital interface users .
I personally not need for my own purpose.

I do have build a ON4AEF external digital interface for my own into a second
K2 box (Don W3PFR now about my concept hi) .  

But a friend of mine who also have a K2 and he like to build a digital
interface circuit for his K2 like EA3BLQ has build.

He prefer the design of EA3BLQ but he needs some PCB's of Pedro.

>From there my request if someone has some dupes EA3BLQ boards or are there
some copies released around his project hi ..

Kindly regards es thanks anyway

73's Jean ON4AEF.


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[Elecraft] DIGTAL INTERFACE EA3BLQ

[Behiels Jean-Pierre]

 

Hi K2 users;

 

We all now that the digital interface realised especially for the K2 by
EA3BLQ in past,is SK despite !

A lot of time is gone,but are there some alternated suggestions,about the
building concept of EA3BLQ.

I can imagine that someone has continues his PCB art work for further K2
digital interface users .
I personally not need for my own purpose.

I do have build a ON4AEF external digital interface for my own into a second
K2 box (Don W3PFR now about my concept hi) .  

But a friend of mine who also have a K2 and he like to build a digital
interface circuit for his K2 like EA3BLQ has build.

He prefer the design of EA3BLQ but he needs some PCB's of Pedro.

>From there my request if someone has some dupes EA3BLQ boards or are there
some copies released around his project hi ..



Kindly regards es thanks anyway

 

73's Jean ON4AEF.

 



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[Elecraft] Antennas :http://www.hfwireantennas.com/home.html

[Behiels jean-Pierre]

 

Hi members;

 

Perhaps someone now about this company or any experience with ?

I do have made a order at 5 november 2016

Till now,not any order received ?

I now,it has nothing to see with K-radios .

 

hfwireantennas.com

 

4673 Henry St

Norton Shores, MI 

49441-5432

vm 231-335-3775

 

  sa...@hfwireantennas.com

 

Sorry forget my name !

 

Regards Jean ON4AEF.

 

 

E-mail : on4...@telenet.be

 

 

 

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[Elecraft] Antennas

[Behiels jean-Pierre]

Hi members;

 

Perhaps someone now about this company or any experience with ?

I do have made a order at 5 november 2016

Till now,not any order received ?

I now,it has nothing to see with K-radios .

 

hfwireantennas.com

 

4673 Henry St

Norton Shores, MI 

49441-5432

vm 231-335-3775

 

  sa...@hfwireantennas.com

 

E-mail : on4...@telenet.be

 

 

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[Elecraft] : KAT100 failure

[Behiels jean-Pierre]

Hi K2 members and Don W3FPR.

 

Last night I do have next failure.

I was transmitting with 50 W in CW with my K2/100 with in conjunction with
my  KAT100 into a perfect aligned 7 Mhz dipole (SWR1/1)

Before starting I always do a tune with my K2 we never no the SWR is bad hi.

The SWR indication on the KAT100 was outstanding 1/1,what I suspect because
I now the SWR of my antenne already was 1/1 !

After transmitting a while (5 minutes or so) the KAT100 SWR indication was
in the red zone,I stop transmitting immediately.

My RX level was dropping down to a zero level,propably a interruption in the
ANT1 connection of my KAT100.

I do change by means of the K2 command on the frontpanel to ANT2 connection
and back to ANT1 connection.

Nothing happens to help the failure yet,same failure no RX on ANT1
connection ?

I do disconnect the KAT 100 unit and remove the power supply of the K2 and
his KAT 100.

After all (toggling with the relays ???) I can receive again on both ANT1
and 2 but I do have the correct impression that the receive level 

on the ANT1 connection has been attenuated since I do hat this failure last
night !

There is still a failure now,I could not tune anymore the 7 Mhz antenne
connected on both ANT1 or on the ANT2 connection 

The software system the K2 is tuning well but could not find anymore a
correct value of  1/1,I suppose.

During the automatic tuning procedure the SWR leds are swiping around 1.7
and 2.5 (yellow leds on frontpanel of KAT100).

And the systems stays tuning yet with no final result !!

This last was not happens before the tuning procedure was very quick and
short and the indication on the KAT100 was 1/1.

I do have check the antenne himself and the antenne coax cables again
nothing wrong with them ,they are  all still 1/1.

I think I do have damaged some components inside the KAT100 due possible RF
injection or something like that during the TX operation I made ?
Any suggestions are welcome,where I have to take a look on it.

I do have made some measurements already

Aligned to ANT 1 next relays are supplied K1-K3-K4-K6-K12 (12VDC).

Aligned to ANT2 next relays are supplied K7-K13-K17-K18 (12VDC).

I do have measured between the switching contacts of those activated relays
1-3-4 everything seems to be have the correct values during changeover ?

To be honest because I do have not mutch experience  with the KAT100
schematic,I could not direct follow witch way the RX signal is exactly
following during

the 2 positions of ANT1 and ANT2 !!  

 

I hope someone could me point into the correct direction .

 

Regards Jean ON4AEF.

 

 

E-mail : 
jeanpierre.behi...@telenet.be

 

 

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[Elecraft] K2 LED bar graph meter

[Behiels jean-Pierre]

Hi Dale good afternoon;

Could you give me the details about this modification(published article or
so )? 
Are there some available part numbers for the new bar graph LED block ??
Seems to be a interesting modification to do hi ?

Regards Jean ON4AEF.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale
Putnam
Sent: dinsdag 19 januari 2016 15:11
To: Gee; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K2 LED bar graph meter

that is one of the mods that have been done to a number of the K2s. It
enhances the visual of the front panel. It can be undone, IF and ONLY ifvery
carefully, so as not to damage the front panel pcb.

Have a great day, 
 
 
--...   ...--
Dale - WC7S in Wy
 
 


> From: k...@charter.net
> Date: Tue, 19 Jan 2016 09:00:19 -0500
> To: Elecraft@mailman.qth.net
> Subject: [Elecraft] K2 LED bar graph meter
> 
> I have recently acquired a K2, serial number 6845. The LED bargraph meter
has multicolored segments. The far left two are red, the next two are
yellow, the next two are green, the next two are yellow again. Is this
normal? 
> 
> Sent from my iPad
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[Elecraft] KXBC3 Clock accuracy

[Pierre]

Hi to all

The accuracy of the KXBC3 clock is at best marginal ...

But ... Looking at the schematic of the KXBC3, the real time clock seems  
to be a part of chip PIC24F16KA10. And a reference to that chip says this:


29.3.9 Calibration
The real-time crystal input can be calibrated using the periodic  
auto-adjust feature. When
properly calibrated, the RTCC can provide an error of less than 3 seconds  
per month. This is
accomplished by finding the number of error clock pulses and storing the  
value into the lower half
of the RCFGCAL register. The 8-bit signed value loaded into the lower half  
of RCFGCAL is
multiplied by four and will be either added or subtracted from the RTCC  
timer, once every minute.

Refer to the steps below for RTCC calibration

(Reference: http://ww1.microchip.com/downloads/en/DeviceDoc/39696b.pdf )

So I wonder if some calibration could be done via a software mod. My KXBC3  
clock gain about 15 seconds per week ... far away from 3 seconds per month  
... ??


73 de Pierre VE2PID


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[Elecraft] KX3 - DC Plug +

[Pierre]

... Solutions found. One of the pad of the KX3s DC connector was disconnected. 
I simply removed the side panel, and with a thin point soldering tool, the 
place was sufficient to get to the pad (while protecting the plastic) and 
re-solder it  Hope that it will hold ... simple solution.

And about the pixel problem, it was related to the RF control (RF not 0) so I 
did the correction ... and no more annoying "pixel" ...

Many thanks for your help.

73 de Pierre VE2PID
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[Elecraft] KX3 - DC Plug +

[Pierre]

Hi Folks

Well after 3600+ QSOs with my KX3/SN190, I now have a couple of problems:

1- The DC plug is working intermittently.Think that I have to resolder it. 
Since I got the factory-built version, I would like to know what is the 
shortest way to (de)-assemble the rig to do the repair...? I Have the battery 
charger, tuner and roofing filters options in the radio.

2- The second pixel on the SWR display is lighted even without signal. Not a 
major problem .. just want to know what is going on ...

Thanks de Pierre VE2PID

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[Elecraft] K3: Sherwood Receiver Test Data question

[Pierre]

Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer) 
...which compares very well to the 'original' K3.

73 de Pierre VE2PID
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[Elecraft] :K2 Homebrew external digital interface with build-in soundcard device

[Behiels jean-Pierre]

Hi Elecraft members;

I already have build a K2/10.
My next project is to homebrew a digital interface for general purpose with
external soundcard into a separated Elecraft EC2 project enclosure.
Is there anyone who could give my some addresses and advise witch kind of
soundcard is usuable for this purpose ?
I presume a standard PC soundcard is not really useful for build-in in a
EC2-box without any PC support(connectors and so on)
You must now that I must solder my DC transceiver PC isolation circuit to
this soundcard as well.
I presume I could not solder on a standard PCI slot of sutch soundcard,not
talking about supplying this unit and so on
I will work with some small audio transformer,and some opto couplers for the
DC isolation between both.
(transceiver and PC USB port).
I look forward to receive some idees and any good designs and some usefull
information (addresses where to buy)around.
I hope someone could help my with my request.

Kindly regards Jean ON4AEF.

E-mail : on4...@telenet.be


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[Elecraft] About BL2 Balun

[Pierre]

Hi folks

A question about BL2  Wideband 1:1  4:1 (Switchable) Balun. Does it also
have some kind of'choking' effect (to reduce or eliminate currents on the
outside of the coax)... or is it just a balun (TLT) to transform impedances
?

Thanks
de Pierre VE2PID
Kx1#442, K2 #5170 KX3 # 190



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Re: [Elecraft] About BL2 Balun

[Pierre]

FB John, but can it 'choke' outside coax currents, like a coiled choke 
can do? I cannot see how.. ??




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Re: [Elecraft] Palm Pico paddle for the KX3

[Pierre]

.. A question: Can the Pico+mounting bracket still be used in any position
with the KX3 legs fully extended?

I don't think so ?



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Re: [Elecraft] Palm Pico paddle for the KX3

[Pierre]

Thanks Bill..

As I understand it, the mounting bracket is made of 2 parts at a angle less
than 90 deg..??
If, so, if I operate with the KX3 without extending the legs, the Pico would
become non parallel to the surface of operation, but it will rise toward the
operator?

73 de Pierre VE2PID KX3 s/n 190.




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Re: [Elecraft] Modification I made to KXPD3

[Pierre]

Hi Ken,

Just made the same mod. Works fine. I will see after some time if the rare
missing dots are still coming. I often suspected that the paddle hinge are
not always a perfect ground.. so that could solve the problem.

Tnx! 72/73  de Pierre VE2PID KX3 s/n 190




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[Elecraft] KX3 won't start

[Pierre]

Hi to all,

A friend of mine reports that sometimes his KX3 (received las week) don't
start and he have to wait a few minutes before it gets on. The same problem
is reported in Yahoo,s KX3 group. Search for KX3 starts up with no rx this
morning on Yahoo.

My KX3 #190 never had this problem. I use the last FW official release.

Any idea?

Thanks de Pierre 



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Re: [Elecraft] KX3 won't start

[Pierre]

Sorry folks, my title is misleading. The exact problem is better described
like this one from Yahoo:

Fired up the KX3 this morning..., no receive for several minutes. Antenna
tuned OK and each time the tune sequence ended I had a receive signal
briefly, 1/2 second or less. 

Thanks again for any help...



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[Elecraft] KXPD3 again...

[Pierre]

Hi folks,

 Well, after more than 2 months of operations with the KXPD3 and more than
350 QSOs, I still have trouble with that paddle. It occasionally misses
either a dit or a dah. On these occasions, when I push the paddle, the
contact don't produces anything.

 So far, the fixes that have read:

 - clean the black anodizing around the hole where the head of the thumb
screw sits. I was told that it was done at the factory starting at a S/N
earlier than mine, so I did not tried it. Maybe I should do it.
 - To 'file' the contacts screws.. Done this, but not much change...
 - Changing the spring: I did not do it, and wonder of it could be THE fix..

 It is a bit strange that after all the complaints about the KXPD3, Elecraft
has not fixed that once and for all...?

 About the spring, I would suggest that Elecraft provides us with a set of 3
to 4 new springs of different tensions so that we can test/choose the one
that works best for each user.

 73 de VE2PID KX3 S/N 190



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Re: [Elecraft] KX3 battery question again

[Pierre]

Hi Robert,

There is a chain of stores here in Quebec who has a good choice of
batteries. Maybe it can help you:

http://www.batteriesexpert.com/

73 de VE2PID KX3 S/N 190



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Re: [Elecraft] LiFePO4 Battery Pack Performance

[Pierre]

A question: I have an automatic sealed battery charger for my 12V Pb-Ac
battery.
From:
http://www.ctcbattery.com/LiFePO4-Rechargeable-Battery/CTC-12-8V-4-5Ah-57-6Wh-Lithium-Iron-Phosphate-LiFePO4-Rechargeable-Battery

I read Require no change to a lead acid battery charging system

Does it means that my old charger will also work with those batteries?

73 de Pierre KX3 S/N 190



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[Elecraft] [KX3] NR setting

[Pierre]

.. On page 13 of the KX3 manual, we can read this:

Holding NR turns on noise reduction and displays its setting, which can be
adjusted using the knob above the switch. Tap any switch to exit the setting
display.

I have installed the NR but cannot adjust its setting using the control knob
above the switch. Am I missing something?

Thanks de VE2PID KX3 # 190



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[Elecraft] KX3 KXAT3 SWR re-tune request threshold

[Pierre]

Hi folks,

For years, I have worked portable with an inverted-vee as a multiband antenna 
and a ladder line feeder. With the KX1 internal tuner, the T1 or a LDG Z-817, 
once tuned in a band, I did not have to re-tune as long as I stayed in that 
band.

However, with the KXAT3 and with the same antenna, the ATU symbol often begins 
to 'flash' if I change frequency within a band requiring a new tuning even if I 
tuned on that band. 

So... I wonder if a new menu item could be added in the KX3 offering the 
possibility  to set the SWR threshold over which there would be no re-tune 
request by the KXAT3? That threshold could be adjustable offering 3 choices 
like 1.5:1 and 2:2 or also even to 3:1 for example. I can cope easily with a 
3:1 SWR, the loss is not so great...

Meanwhile, thanks again for that wonderful rig.

Pierre VE2PID KX3 S/N 190
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Re: [Elecraft] KX3 KXAT3 SWR re-tune request threshold

[Pierre]

Hi Stan,

What I often do is to make very frequent band change so I would have to
repeat each time the bypass/debypass process... I would prefer to have a
higher threshold for all bands.

Or another possibility: At the start of a session, I could do a tuning
somewhere in each band I plan to use. Then I would by-pass the ATU. Don't
know if the L/C setting would be retained and recalled on band changes even
if the ATU is by-passed..??




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[Elecraft] KX3 - Roofing filters

[Pierre]

Thanks for your suggestions. Will try all this on a future SOTA group 
activation.

73 de Pierre VE2PID KX3 S/N 190
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[Elecraft] KX3 - Roofing filters

[Pierre]

Hello to all.

Maybe that I don't understand the real utility of the roofing filter but I 
observed this. Last saturday, we were on a SOTA summit using two KX3s about 40 
feet appart transmitting CW at 5 W. And even with  the roofing filters on, we 
heard each other's sending as a diffuse noise. I know that changion RX shift to 
8 disable the roofing filters, but we were not using that shift.

So, am I missing something about the use of these filters? Are they designed 
for operations with operators near each other like SOTA activation on a crowded 
summit ?

73, de VE2PID KX3 S/N 190
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[Elecraft] [KX3] PCB Layers

[Pierre]

Hi Elecrafters

Other posts refer to the KX3's PCBs as of the mutilayer type. Does it means 
double sided or are there also other layers inside the PCB? And if so, how 
many?

73 
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[Elecraft] KX1 Cheat sheets (by VE3HLS)

[Pierre]

Here is a link:

KX1 Info Cards (6 Pages) Ken Alexander, VE3HLS  e-mail request to:  
k.alexan...@sympatico.ca

HTH
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[Elecraft] K2/SSB with installed K6XX CW Indicator

[Pierre]

Hello Elecrafters,

A friend told me that if I install the K6XX CW Indicator in my K2, the display 
will also blink in SSB mode. My question: Is there a way or a modification 
which would de-activate the indicator when working in SSB mode?

73 de Pierre VE2PID
K2 # 5170
KX1 # 441
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Re: [Elecraft] KX1 RX problem

[Pierre]

Hi Don,

Well, I am really not gifted when it comes to repair. I tried your 
solution, but more problems appeared. Last one,
I touched something with a metal screwdriver and now the last digit of the 
led is not working!!

So, I would like to ask yousomething: do some repairs at your QTH??

 If so, and if you agree, I could send you my KX1.. and I would of course 
pay you any charge for repairing and shipping via Paypal or international 
money order).

The problems

Last LED not working (newest mistake I made)
Sudden drop on RX on 30 and 20 (. I get a 1.0 SWR on TX on all bands with a 
dummy load, made the checks you suggested, but not fixed)
I made a wire jumper to repair a broken link when I tried to introduce a 
scew for a new paddle. This is ok but unesthetic)..
Maybe not optimised for max RX. In the past, I made the mo suggested to 
raise a little the power output

I really love my KX1 made over 1500 QSO since building it in Feb 2004 and 
want to do more

Thanks for your attention, and have a nice day


- Original Message - 
From: Don Wilhelm w3...@embarqmail.com
To: Pierre ve2...@videotron.ca
Cc: elecraft@mailman.qth.net
Sent: Sunday, August 02, 2009 7:17 AM
Subject: Re: [Elecraft] KX1 RX problem


 Pierre,

 That is a strange combination of bands to produce a problem.
 My guess is that you have either a faulty relay contact or a bad solder
 connection/toroid lead in the KXAT1.   Perhaps a relay contact that
 makes contact until you pass RF through it.
 You could try the last two troubleshooting steps shown on page 11 of the
 KXAT1 manual.

 73,
 Don W3FPR

 Pierre wrote:
 A new problem is affecting my KX1 (#442). If I tune on 40, 30 and 20m, 
 the KXAT1 finds a correct match on all three bands, and after tuning, 
 signals on RX are loud and clear.

 But after, as soon as I touch the paddle on 30 or 20, the RX signals drop 
 considerably on these bands; but that problem don't appear on 40 m.

 Any clue?

 Thanks de Pierre VE2PID








No virus found in this incoming message.
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09:38:00

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[Elecraft] KX1 RX problem

[Pierre]

A new problem is affecting my KX1 (#442). If I tune on 40, 30 and 20m, the 
KXAT1 finds a correct match on all three bands, and after tuning, signals on RX 
are loud and clear.

But after, as soon as I touch the paddle on 30 or 20, the RX signals drop 
considerably on these bands; but that problem don't appear on 40 m.

Any clue?

Thanks de Pierre VE2PID
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[Elecraft] KX1 encoder trouble

[Pierre]

Hi to all... The encoder on my KX1 is beginning to show some trouble. 
Sometimes, if I turn it counterclockwise, the numbers are going up and down 
erratically before they stabilise after stopping turning the knob. After, I can 
still work with the rig . Any idea, or is it time to replace it (seems easy to 
do)...?

Thanks de Pierre VE2PID
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[Elecraft] KX1 case warm

[Pierre]

Thanks Don for the suggestion. I repaired the broken trace and the KX1's case 
in cool again...

The problem was that the path between pin 2 of U3 and pin 17 of U1 was broken. 
Don't know why it made Q6 hot, but anyway it's Ok now

72/73 de Pierre Ve2PID
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[Elecraft] KX1 case warm

[Pierre]

Hi to all,

I inadvertently pushed to far a screw designed for a new paddle in the hole 
near the paddle socket.. and think I damaged the circuit near the edge on the 
PCB (the path near the edge seems broken). 

Now, the case of the KX1 gets warm even in receive mode. That heat seems to 
come from Q6 . Is there a relation between the damage and that warming of Q6 
and the KX1 case?

Thanks for your help
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[Elecraft] Ti stereo jack part number

[Pierre]

Hi to all... The stereo jack on my T1 ATU don't work properly... intermittent 
contact on the ring..  So, I want to change it.

What is the Mouser part # ? Maybe could find one here locally.

Thanks
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[Elecraft] K2/100 Problem on 80 meters - Solved

[Pierre]

Hello Elecrafters,

The problem which appeared recently on my K2/100 #5170 is now gone. I did today 
the upgrade (KPA100UPKT ) and the rig works just fine. I had ordered the 
upgrade package a year ago, but never installed it. New changes have been made 
since then to the upgrade kit; and, thanks to Elecraft, I have received the new 
parts yesterday.

...And for that problem (high reflected power showing on the antenna tuner 
meter and high SWR, so low power output, but only on 80m), I don't know exactly 
what caused it (maybe some kind of oscillation?) since that upgrade required 
many changes. But anyway, glad to use my K2/100 on 80 meters again.

Thanks to Don W3FPR for good suggestions on private emails.
 
73 de Pierre VE2PID
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[Elecraft] K2/100 problem on 80 meters

[Pierre]

From Don W3FPR

But, if you have added the KPA100UPKT, I must ask if your upgrade kit included 
a new C31 capacitor of 0.22 uF value.  Many KPA100UPKT kits did 
not include this capacitor until recently.  If this situation fits your case, 
send an email to pa...@elecraft.com asking for a new capacitor...

Sometime ago (around 2007), I ordered and received the KPA100UPKT upgrade kit 
for my K2/100 #5170, but never installed it. I will do it soon.
After checking the (old) package and the manual page, I see that there are new 
parts in the instruction errata which I did not receive in 2007: 5 capacitors 
and a crystal... so will ask Elecraft for them before I start that upgrade.

Thanks to all for you suggestions.

73 de Pierre VE2PID
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[Elecraft] K2/100 Problem on 80 meters

[Pierre]

Hi to all

I have a problem on my K2/100 that manifests itself only on 80 meters: 

If I operate QRP at 10 watts, I can match my antenna with a manual tuner, the 
SWR is very good near 1:1, and the rig operates smoothly.
But as soon as I switch (via power control) to QRO, without changing the 
settings on the tuner, the reflected power needle swings wildly as soon as I 
stop keying, even at only 11 watts. 

For all other bands (40 up) the rig works fine QRP or QRO.

I would like to know where to look at.. ?

Thanks for your help!

Pierre VE2PID K2#5170
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[Elecraft] K2/100 problem on 80 meters

[Pierre]

Well I spoke about the SWR meter on my MFJ-949E. If I send CW, when I release 
the key, the reflected power needle goes up wildly.. sign of a high SWR... even 
at 11 watts.

But that same needle stay at 0 W for a 10 Watts transmission...
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[Elecraft] K2/100 Problem on 80 meters

[Pierre]

Oups..l et me correct my earlier posts. The reflected power needle goes high 
while I transmit. A kind of inertia effect with the neddle was confusing me. 
Sorry about that.

I will revise all parts of the 80 m LPF. Maybe there is a bad solder there.

73  de Pierre VE2PID
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[Elecraft] T1 ATU problem

[Pierre]

Hi Elecrafters,

Something strange (?) is happening with my T1 and a Yaesu FT817 using the 
cable. I tune a band, work it, then go to another one. 
If I return to the previous band, the yellow light is flashing instead of the 
green one, as it is supposed to do. Sometime, the green light flashes ok, but 
not always.

Any idea?

73 de Pierre VE2PID
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[Elecraft] BL2 Balun

[Pierre]

Hi Elecrafters,

I am looking at the BL2 250 W balun. Is it a voltage or a current balun? 

I plan to use it with an Inverted Vee for 23-30-40 m

73 de Pierre VE2PID
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[Elecraft] BL2 Balun

[Pierre]

 sorry for the error on my earlier post .. I plan to use it on 20-30-40 m 
;-)

de Pierre VE2PID
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[Elecraft] K2/100 RS-232 Noise

[Pierre Desjardins]

From David W4SMT
However I'mgetting some annoying noise from the RS-232. My software polls 
the K2 every 250ms (4 times per second) and it generates noise on all bands

every time it's polled.


Hello David,
Did you left the frequency counter test cable connected to TP2 (BFO)?

73 de Pierre VE2PID 


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[Elecraft] K2/100 RS-232 Noise

[Pierre Desjardins]

Hi Pierre.. YES, I did leave the freq counter cable. Is that the problem? 
I'm at work right now and can't test it.

Thanks.. David, W4SMT


David,

I just wanted to know if your cable was still in place before opening my K2. 
I have the same noise problem, especially on 20 m, and guessed that the 
cable was the cause of it.


So, I just removed the counter cable.. (and changed the ribbon's position), 
but that noise is still present. So, back to square one.. ??


73 de Pierre VE2PID

K2 S/N 5170 


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[Elecraft] K2/100 Final Berillium transistors

[Pierre Desjardins]

Hi to all,

As mentionned in the KPA100 manual, Q1-Q2 2SC2879 contain Beryllia Ceramic. 
Do not break, cut, or crush them, since the dust or vapor can be dangerous.


However, there is a new design, the 2SC2879A. The difference between the 
2SC2879 and the 2SC2879A is that the A version is RoHS compliant, and uses 
an Aluminum Oxide insulator (color gray) on the header vs. Berillium Oxide 
(color white).


Hope for all that Elecraft will use the new ''A'' design in future 
upgrades...


72/73 de Pierre VE2PID

K2/100 # 5170
KX1 # 442 


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[Elecraft] KPA100 RFC10 choke

[Pierre Desjardins]

Hi,

I built the 100 W PA about 15 months ago. There was a choke across the 
antenna jack at J2, to prevent build-up of any static charge at the antenna 
jack.


However, I see in the latest manual of the PA that this choke is not shown.

Any reason for it?

73 de Pierre

K2/100 # 5170 


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[Elecraft] KPA100 RFC10 choke

[Pierre Desjardins]

Well, I think that the removal of RFC10 is adding a risk to this fine rig. 
To rely on external protection (at the antenna
or at the transmission line is risky at best.. As far as I know, all major 
brands (Icom, Yaesu..) are providing the extra protection

given by an appropriate choke inside the rig.

I am surprised to see that Elecraft did not find a way to keep the choke 
inside the rig and the protection associated with it, instead of

relying on arbitrary external elements...

73, de Pierre VE2PID

K2/100 S/N 5170
KX1 S/N 442 


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[Elecraft] Coaxial switch and two rigs

[Pierre Desjardins]

Hi Elecrafters.. maybe that question has already been posted, but I ask it 
again. I plan to use an IC-706 MKIIG for SSB/VHF operations and a K2 for CW 
only. I have a Daiwa CS-201 coax switch. The ''output'' of the switch will 
go to an ATU (LDG AT-100Pro), and the inputs to each of the rig.


That switch shorts the unused output connector. If by distraction I use the 
K2 when the switch is at '706' position's, maybe I risk to damage the finals 
of the K2 (and same problem at inverse for the 706).


My question: Is the ''switch'' approach a relatively safe solution, or is is 
better to manually change the setup via coax permutation?


73, de Pierre VE2PID

KX1 # 442
K2/100 # 5170 


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[Elecraft] KXB3080

[Pierre Desjardins]

Hi Elecrafters,

Will the KXB3080 option manual be available soon on the ''Manual  Download 
section?


72, de Pierre VE2PID

KX1 # 442
K2/100 # 5170 


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[Elecraft] KX1- 80m and random wire

[Pierre Desjardins]

Hi Elecrafters,

For field operations with a KX/40.30.20m, I currently use a 28 feet random
wire at the end of a 22 feet pole, and an single 16 feet radial on ground.
The computed impedance is 89 - j 341 ohms  at 7 MHz,  matched by the
KXAT1.

However, at the low end of 80 m, it should be around 54 - j 1316 ohms, 
giving very high SWR. Can the ATU match such values?


   72, de VE2PID
   KX1 s/n 442
   K2/100 s/n 5170


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[Elecraft] DSP Filters

[Pierre Desjardins]

A question about DSP... I did not find any indication about the exact sequence 
of filters display in DSP. 

For instance, lets say that we select CF2 and the tap XFIL; then, the display 
shows an FL filter. But I am not sure that it is one. If I go through until I 
get FL1, it does'nt like the normal FL1 that I have. Especially if the denoiser 
was ''on'' in DSP. As I understand it, the xtals filters are changing the IF 
(RF) bandwidth and the DSP's ones are doing the same thing, but on an audio 
range after digitization. Since I have set the same bandwidths for each group 
(i.e. FL2 like CF2, FL3 like CF3...), the difference is not always apparent. 

So, how to toggle between the cristals and DSP filters with a correct display 
of the set choosen?

73 de Pierre 
K2 # 5170 KX1 # 442
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[Elecraft] Noise Blanker gain

[Pierre Desjardins]

About the noise blanker: Mine is working fine on all bands except for a 
particular noise on 40 m. It is killed completly by the NB on all other bands. 
But it seems that the gain is not always (works some time) sufficient to 
trigger it at 7,050 MHz. That noise is rising to full strength in about 3 
seconds or so, then vanish after about 10 seconds.

I plan to change C16 to a higher value (better coupling to the amp stage). My 
question: is it a good (or the best/only) way to add some gain to the blanker? 

73 de VE2PID
K2 s/n 5170
KX1 s/n 442
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[Elecraft] BFO Test - CAL FCTR

[Pierre Desjardins]

Update: The problem was at L33. Resoldered and replaced the wires correctly 
and got back to a good 5 kHz BFO range. Maybe a loose contact or a short on 
the coil.


BTW, I got a tip from another Elecrafter: Since the sole purpose of R116 is 
to retain L33, adding ''spaghetti sleeving to the leads of the 5.1 megohm 
resistor may prevent accidental shorts of few turns of that coil.


73, de VE2PID 


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[Elecraft] BFO Test - CAL FCTR

[Pierre Desjardins]

Hi to all Elecrafters

I recently built K2/100 # 5170. At the BFO Test (page 62), using CAL FCTR, I 
got correct readings: Center at 4913,55 kHz, BFO High 4917,23 and BFO low at 
4912,41 respectively.

But something new is happening. The readings changed to  4913,85 (C), 4915.97 
(H) and 4913,58 (L).. so that the narrow filters (1 kHz) are almost impossible 
to center correctly. I use the Spectrogam method to adjust the filters.

Where should I look to get it back to the previous range?

Thanks de Pierre VE2PID


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[Elecraft] K2 # 5170

[Pierre Desjardins]

Well, despite very poor conditions, K2 # 5170 came alive tonight for its first 
qso. Got a 599 on 40 meters CW from NJ.

Next step will be the 100 watts option.

73, de Pierre VE2PID

KX1 # 442
K2 # 5170
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Re: [Elecraft] Morse on the Tonight Show, Tonight, Friday the 13th

[Pierre Desjardins]

Its available there: http://www.tarc.org/leno/leno.wmv 

73, de VE2PID 
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Re: [elecraft]Order your KX1 now

[Pierre Desjardins]

BTW There is an asteroid called KX1 (1986).  It is currently in Aquila at 
about 615 millions km from other KX1s...


73 de Pierre 


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[Elecraft] Miles per Watt

[Pierre Desjardins]

- Original Message - 
From: Pierre Desjardins [EMAIL PROTECTED]

To: S55M [EMAIL PROTECTED]
Sent: Friday, January 07, 2005 17:39
Subject: [Elecraft] Miles per Watt



Miles per Watt is nonsense data to impress
people.because nothing happens in linear mode!!!


Not a linear behavior for sure...

Lets say that a 500 mW signal at 7,4 mHz is received 4000 km away and that
both antennas are half-waves dipoles. We could be tempted to say that an 1
watt signal would reach 8000 km in the same conditions.

But according to the Friis transmission formula, the first 500 mW signal is
reduced to 0,0096 microwatts at the received end, and the second one (1
watt) is a whooping 0,0048 microwatts! Still readable? Not sure...

The inverse of the square of the distances is working there, hyperbolic, not
linear. Twice the power, but the distance doubled,  squared makes 4 and the
fraction becomes 1/2.

72/73, de VE2PID
KX1 # 442

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Re: [Elecraft] Excellent exchange rate (or article?) helping Elecraftsales to Europe?

[Pierre Desjardins]

Hi Eric.. I am just coming back from France and operated my KX1 for a whole
month there..with pretty good results.

Maybe part of the explanation (HI)...:-)

72 de Pierre VE2PID KX1 # 442

- Original Message - 
From: Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED]

To: Elecraft List elecraft@mailman.qth.net
Sent: Monday, November 22, 2004 1:19 PM
Subject: [Elecraft] Excellent exchange rate (or article?) helping 
Elecraftsales to Europe?




I've noticed a pleasant increase in orders for K1, K2, KX1 radios and


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[Elecraft] KIO2 connection with computer

[Pierre Vallee]

I installed the KIO2 about one year ago.  It worked fine.  I now have a problem 
with it.  I can't get a connection between the K2 and the computer using the K2 
Remote V1.0 Beta program.  The computer com1 setting is fine and the K2 port is 
ON.  In testing the cable between the K2 and the computer with a line tester, I 
get a no reading on pin 2 .

In doing the voltage checks for U1, I find readings of 12.77v on pin 5 (should 
be -8) and 0v on pin 12 (should be 5).  I believe the circuit diagram shows 
these pins being part of the transmit circuitry (pin 2).  Could U1 be my 
problem?  Any suggestions.  Thanks

Pierre
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[Elecraft] Re: KX1 Random Wire Antenna recommendations

[Pierre Desjardins]

I actually use that same setup (28' wire and 16' ground, BNC adapter). I get 
pretty good DX  results, and the SWR is about 1:1 on all 3 bands. The  end of 
that antenna is attached to a 22' fiberglass telescopic pole.

I would be fine to know about your ''mixed results''?

72/73 de Pierre VE2PID
KX1 # 442

I have had some mixed results using Model 1296 BNC adapter using a 28'
Random wire with a 16' ground wire.  I would like to hear from some other
KX1 operators and what works for them.

73, KI4DGH

Chuck Gehring
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[Elecraft] Like MFJ's 931 Artificial Ground

[Pierre Desjardins]

Hi Bill

Got one last year to use on a vertical in conjunction with a standard tuner and 
now as a conterpoise to a LW antenna. It resolved effectively a high SWR 
problem I had.

It consists of a LC network which creates a low impedance path to a standard 
ground. An L and C network don't create a ground; it rather makes a poor ground 
more effective.

Will send you a schematic of the MFJ 931 via email.
If anyone else is interrested, let me know.

72/73 de Pierre
KX1 #442
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[Elecraft] Re: KX1 and airport security

[Pierre Desjardins]

I will travel soon with the KX1, the antenna coils, etc 

AND.. a telescopic pole for antenna setup. The key will be the policy of the 
airlines, and then the decision of the specific aircrafts personnel.  X-ray 
scans will show that it is only fiberglass, and there is no sharp point.  But 
because it is 46 inches long, it has the potential as a club, and may be 
treated the same as golf clubs, baseball bats, hockey sticks, etc.

Hoping that it won't be ''confiscated'' in some european airport I will pass 
trough. 

Advices are welcome

VE2PID, Pierre KX1 # 442

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[Elecraft] The Big Four: YETI

[Pierre Desjardins]

How about KEYIT for Kenwood fans?

VE2PID Pierre 
KX1 #442


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