Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread TheMG .
Wow, you'll never believe what I just found out!

There is absolutely nothing wrong at all with L33. It turns out it's
the rubber bumper that is at fault!

I found this out by pressing down on the stem of the bumper with the
plastic tuning tool, instead of pressing on the inductor. Guess what?
Frequency started to drift!!!

On a hunch, I decided to get my multimeter and measure on the bottom
of the rubber bumper. It's slightly conductive! Starts at about 3
megohms and if I hold the multimeter probes in place the resistance
slowly starts to drop down to 1 megohm and below. After a couple
minutes holding the probes in place about 1/4 inch apart on the bottom
of the bumper, the resistance got down to 500k!

Since the solder pads for X3 BFO crystal are underneath the rubber
bumper, it is effectively like putting a resistor in parallel with the
crystal, which obviously has undesirable effects on the operation of
the BFO oscillator.

The slowly decreasing resistance as the meter probes are held in
contact with the rubber is consistent with the fact that the BFO
drifts over time.

I suspected contaminants on the surface of the rubber, but after
cleaning it with iso alcohol, there is no change. Something in the
rubber is causing it to be conductive.

I wonder if somewhere out there, there are hams with K2s experiencing
BFO drift related to the same cause? If I got a conductive rubber
bumper in my kit, it's highly likely someone else has also.

Anyways, it's getting a little late right now. I'll communicate my
findings to Elecraft tomorrow (in case they aren't already reading
this).

73,
Mikael
VE8MT

On Sun, Apr 13, 2014 at 9:50 PM, Don Wilhelm w3...@embarqmail.com wrote:
 Get a replacement L33 and see if that takes care of it.  You might wan to
 request a replacement mounting resistor as well.

 73,
 Don W3FPR


 On 4/13/2014 9:23 PM, TheMG . wrote:

 Leads under L33 are flush cut as flat as possible and it is mounted on
 the rubber bumper with half the stem cut off exactly as per the
 instructions. The resistor was pushed down into the center to keep L33
 secure and to prevent the resistor body from being pressed on by the
 bottom cover.

 No luck on resoldering L33 or the crystals underneath it. However I
 did notice that when I pull up on the resistor so it isn't pressing
 down on L33 (the inductor is at this point completely loose and free
 to move around. I have the K2 upside down with the bottom cover
 removed and it has been running this way for several hours with
 absolutely no drift. BFO range is 4912.31 to 4917.85 and stays within
 0.01 of that as it warms up.



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[Elecraft] K2 BFO drift problem

2014-04-15 Thread Johnny Siu
Very good to let the mail listing know.  I would think Elecraft support will 
send you a new rubber bumper.  73 Johnny VR2XMC
 


 寄件人︰ TheMG . th...@mg3000.net
收件人︰ d...@w3fpr.com 
副本(CC)︰ elecraft@mailman.qth.net 
傳送日期︰ 2014年04月15日 (週二) 2:15 PM
主題︰ Re: [Elecraft] K2 BFO drift problem
  

Wow, you'll never believe what I just found out!

There is absolutely nothing wrong at all with L33. It turns out it's
the rubber bumper that is at fault!

I found this out by pressing down on the stem of the bumper with the
plastic tuning tool, instead of pressing on the inductor. Guess what?
Frequency started to drift!!!

On a hunch, I decided to get my multimeter and measure on the bottom
of the rubber bumper. It's slightly conductive! Starts at about 3
megohms and if I hold the multimeter probes in place the resistance
slowly starts to drop down to 1 megohm and below. After a couple
minutes holding the probes in place about 1/4 inch apart on the bottom
of the bumper, the resistance got down to 500k!

Since the solder pads for X3 BFO crystal are underneath the rubber
bumper, it is effectively like putting a resistor in parallel with the
crystal, which obviously has undesirable effects on the operation of
the BFO oscillator.

The slowly decreasing resistance as the meter probes are held in
contact with the rubber is consistent with the fact that the BFO
drifts over time.

I suspected contaminants on the surface of the rubber, but after
cleaning it with iso alcohol, there is no change. Something in the
rubber is causing it to be conductive.

I wonder if somewhere out there, there are hams with K2s experiencing
BFO drift related to the same cause? If I got a conductive rubber
bumper in my kit, it's highly likely someone else has also.

Anyways, it's getting a little late right now. I'll communicate my
findings to Elecraft tomorrow (in case they aren't already reading
this).

73,
Mikael
VE8MT

On Sun, Apr 13, 2014 at 9:50 PM, Don Wilhelm w3...@embarqmail.com wrote:
 Get a replacement L33 and see if that takes care of it.  You might wan to
 request a replacement mounting resistor as well.

 73,
 Don W3FPR


 On 4/13/2014 9:23 PM, TheMG . wrote:

 Leads under L33 are flush cut as flat as possible and it is mounted on
 the rubber bumper with half the stem cut off exactly as per the
 instructions. The resistor was pushed down into the center to keep L33
 secure and to prevent the resistor body from being pressed on by the
 bottom cover.

 No luck on resoldering L33 or the crystals underneath it. However I
 did notice that when I pull up on the resistor so it isn't pressing
 down on L33 (the inductor is at this point completely loose and free
 to move around. I have the K2 upside down with the bottom cover
 removed and it has been running this way for several hours with
 absolutely no drift. BFO range is 4912.31 to 4917.85 and stays within
 0.01 of that as it warms up.



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Re: [Elecraft] Mic and headphone

2014-04-15 Thread Jim Brown

On 4/14/2014 4:46 PM, Harry_Yingst wrote:

Phone lines are Typically 600 ohms


Actually, the Zo of phone lines at radio frequencies is about 80 ohms, 
and varies widely with frequency in the audio spectrum. That 
characteristic is determined by the diameter, spacing, and insulation of 
the twisted pairs used to carry the signal. They have not been 600 ohms 
for at least 75 years. More than 40 years ago, it was standard practice 
to equalize broadcast lines for extended frequency response over 
relatively short paths, and transformers were used to step that 
impedance up to the 600 ohms used by older broadcast equipment. But the 
broadcast and pro audio world abandoned 600 ohms as a standard about 50 
years ago.


Modern audio circuits (since we converted from hollow state to solid 
state) use low impedance sources to drive high impedance imputs, there 
is no impedance matching except to the extent that the load impedance 
must be high enough that it does not draw any more current than the 
output stage is designed to provide.


73, Jim K9YC
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Re: [Elecraft] PR6 power/control plug

2014-04-15 Thread John Lemay
Colin

The PR6 comes supplied with the necessary plugs ready wired - a phono for
power and a 15 way D connector for control.

John G4ZTR

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Colin
Sent: 15 April 2014 03:52
To: elecraft@mailman.qth.net
Subject: [Elecraft] PR6 power/control plug

Could anyone please tell me the identity of the power/control plug required
for the PR6 pre-amp.
I don't have my PR6 to hand at the moment and need to get a plug wired up
for the Camb-Hams dxpedition to the Ise of Lewis. Details here for those who
may be interested   
http://dx.camb-hams.com/
Thanks in advance for any help.


73  de Colin G4ERO
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Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread Matt VK2RQ
That's very interesting. I'm in the middle of building a K2 myself, although I 
haven't yet reached the stage where I mount L33. Out of interest, I took out my 
rubber bumper, and tested it with my DMM set to the 20M range -- the meter 
would only read infinite, showing no trace of any conductivity at all. So, if 
your is somehow conductive, then replacing the bumper may well resolve the 
drift problem.

73, Matt VK2RQ.

 
On 15 Apr 2014, at 4:15 pm, TheMG . th...@mg3000.net wrote:

 Wow, you'll never believe what I just found out!
 
 There is absolutely nothing wrong at all with L33. It turns out it's
 the rubber bumper that is at fault!
 
 I found this out by pressing down on the stem of the bumper with the
 plastic tuning tool, instead of pressing on the inductor. Guess what?
 Frequency started to drift!!!
 
 On a hunch, I decided to get my multimeter and measure on the bottom
 of the rubber bumper. It's slightly conductive! Starts at about 3
 megohms and if I hold the multimeter probes in place the resistance
 slowly starts to drop down to 1 megohm and below. After a couple
 minutes holding the probes in place about 1/4 inch apart on the bottom
 of the bumper, the resistance got down to 500k!
 
 Since the solder pads for X3 BFO crystal are underneath the rubber
 bumper, it is effectively like putting a resistor in parallel with the
 crystal, which obviously has undesirable effects on the operation of
 the BFO oscillator.
 
 The slowly decreasing resistance as the meter probes are held in
 contact with the rubber is consistent with the fact that the BFO
 drifts over time.
 
 I suspected contaminants on the surface of the rubber, but after
 cleaning it with iso alcohol, there is no change. Something in the
 rubber is causing it to be conductive.
 
 I wonder if somewhere out there, there are hams with K2s experiencing
 BFO drift related to the same cause? If I got a conductive rubber
 bumper in my kit, it's highly likely someone else has also.
 
 Anyways, it's getting a little late right now. I'll communicate my
 findings to Elecraft tomorrow (in case they aren't already reading
 this).
 
 73,
 Mikael
 VE8MT
 
 On Sun, Apr 13, 2014 at 9:50 PM, Don Wilhelm w3...@embarqmail.com wrote:
 Get a replacement L33 and see if that takes care of it.  You might wan to
 request a replacement mounting resistor as well.
 
 73,
 Don W3FPR
 
 
 On 4/13/2014 9:23 PM, TheMG . wrote:
 
 Leads under L33 are flush cut as flat as possible and it is mounted on
 the rubber bumper with half the stem cut off exactly as per the
 instructions. The resistor was pushed down into the center to keep L33
 secure and to prevent the resistor body from being pressed on by the
 bottom cover.
 
 No luck on resoldering L33 or the crystals underneath it. However I
 did notice that when I pull up on the resistor so it isn't pressing
 down on L33 (the inductor is at this point completely loose and free
 to move around. I have the K2 upside down with the bottom cover
 removed and it has been running this way for several hours with
 absolutely no drift. BFO range is 4912.31 to 4917.85 and stays within
 0.01 of that as it warms up.
 
 
 
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[Elecraft] Heil Proset - 2.6 k Ohm on 3.5 mm plug and bad mic?

2014-04-15 Thread Chris Wagner
This was a new Heil Proset bought from Elecraft. Now it's not working. Any
ideas and suggestions what to test, what to replace? The mic's capsule?

73,
Chris KF6VCI
601 345 2310
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[Elecraft] From WRTC 2010 Blog

2014-04-15 Thread ray.fallen
Not sure where Keith was going with his comments on the K3...

My FT-2000D and my FT-1000MP both needed some tweaking to get them
where I wanted them.  Any modern radio does...it's called a learning curve.

I took my K3 to VP9I for the 2013 CQ-WW RTTY contest and prior to the
contest
probably didn't have ten hours experience on the rig.  Have to say that
compared to
my Yaesu rigs and some ICOMs I've used...the K3 was like a comfortable old
shoe
by the time the contest started.

All that being said, back in 2010, according to G3SXW, over 50% of the rigs
used
at WRTC were the K3.  Here's a piece cut from that post.  (I did a Google
search
on WRTC 2010 Equipment):
-
Some Interesting WRTC Statistics
These were put together by Roger Western G3SXW:

There were 48 Teams each with two transceivers: (for a total of 96 rigs)
# Elecraft K3 - 49
# IC756PROIII - 17
# FT1000MP - 16
# Two each: TS850S, IC756, IC7800, FT2000
# One each: FTDX9000D, Ten-Tec Orion, IC775DSP, Orion 565AT, Elecraft K2

The winning five teams all used FT1000MP or Elecraft K3.
--
Can't wait to see the equipment list from the WRTC 2014 competition

73, Ray - ND8L

K3# 6150
KPA500# 1917
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Re: [Elecraft] K3 M/M Contest stations

2014-04-15 Thread Mike Reublin
If I can get a list of parameters to be saved/restored (I'm not a contester) 
-*AND*- someone to agree to test (it can be tedious and time consuming), I'll 
take a swing at writing something. Windows first, then maybe Mac later. For 
Windows, a XP, Win7 and Win8 user will be necessary.

Contact me off list, please.

73, Mike NF4L

On Apr 15, 2014, at 1:08 AM, W0MU Mike Fatchett w...@w0mu.com wrote:

 Sounds like something for the list...
 
 This would be a handy feature!
 
 Mike W0MU
 
 On 4/14/2014 10:59 PM, Ed Muns wrote:
 K3 configurations are not transferable to other K3s.  Some of the
 configuration parameters are specific to the K3, like the gain calibration
 and VCO parameters.
 
 Accordingly, the K3 Utility only allows configurations to be restored to the
 same serial number K3 that they were saved from.  This is a good thing.
 
 It would be nice if the radio non-specific configuration parameters were
 transferrable but that feature currently is not available.
 
 Ed W0YK
 
 Phil, W7OX wrote:
 I'm not sure. My recollection is that someone
 posted a few weeks ago that he has two K3s and
 could not load the config file save from one into
 his other one. I don't plan to be in a position to
 try that myself
 
 On 4/14/14, 8:48 PM, Chester Alderman wrote:
 I think you can use the K3 Utility to save the K3 configuration, rename it
 with your own call sign then save it, copy it to a flash card, and restore
 that configuration on a different K3 from its K3 Utility. I don't know if
 anyone has tried this, but saving and restoring the K3 configuration is
 contained in the K3 Utility.
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[Elecraft] Subject: Re: Solving the heat problem in the KX3

2014-04-15 Thread Dave Barr


On 4/13/2014 11:50 PM,

Message: 4
Date: Sun, 13 Apr 2014 12:49:28 -0700
From: Jim Bennettw6...@mac.com
To: Elecraft Reflector Reflectorelecraft@mailman.qth.net
Subject: Re: [Elecraft] Solving the heat problem in the KX3
. Almost everyone running PSK31 is doing so with 15 - 35 watts, so a 3-4 
watt signal isn't going to make a lot of QSO's. I did, but they were few and 
far between. Even worse on the JT modes...
 Don't disparage running 3 or 4 watts, or even less.  Over the last 
decade, my K2 at 5 watts has worked 261 DX entities and at 1 watt 113, 
all digital, mostly rtty.   Yes a tribander helped, but many of these 
qsos were on 40, 30, 17 and 12 meters with wire antennas.  At one watt 
in CW DX contests it is possible to come within a few entities of true 
DXCC in 30 hours, and at 5 watts to go well over 100.  Working in 
contests will help the KX3 to run cooler because of the very short 
transmissions.  On JT65 or 9 try working split. Bottom line: be patient 
and expect to be at the end of the line.


73, Dave, K2YG
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Re: [Elecraft] Fake FTDI chips

2014-04-15 Thread ke9uw

The only way I know to use a genuine RS-232 port is to use a desk top
computer with a plug in board.  I would also like to use a lap-top computer
and as far as I know RS-232 ports are not available.  If anyone knows
differently, please let us in on the info.
 
Willis 'Cookie' Cooke, TDXS DX Chairman
K5EWJ  Trustee N5BPS, USS Cavalla, USS Stewart

There may be some companies with the old Lenovos (Think Pad) about 1.5 thick
that are being replaced. I don't know where buy maybe you can find some.
Maybe eBay if the resellers have them.



-
Chuck, KE9UW
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/Fake-FTDI-chips-tp7587050p7587277.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread Don Wilhelm

Mikael,

If you can, please do a test.  See if you can loosen L33 from the rubber 
bumper just a little by raising the bumper.  then slide a strip cut from 
paper stock (like a business card) between the board and the bumper.

See if the BFO still drifts.

If it stops, then your assumption is correct and you should get a new 
rubber bumper.


Good troubleshooting!

73,
Don W3FPR

On 4/15/2014 2:15 AM, TheMG . wrote:

Wow, you'll never believe what I just found out!

There is absolutely nothing wrong at all with L33. It turns out it's
the rubber bumper that is at fault!

I found this out by pressing down on the stem of the bumper with the
plastic tuning tool, instead of pressing on the inductor. Guess what?
Frequency started to drift!!!

On a hunch, I decided to get my multimeter and measure on the bottom
of the rubber bumper. It's slightly conductive! Starts at about 3
megohms and if I hold the multimeter probes in place the resistance
slowly starts to drop down to 1 megohm and below. After a couple
minutes holding the probes in place about 1/4 inch apart on the bottom
of the bumper, the resistance got down to 500k!

Since the solder pads for X3 BFO crystal are underneath the rubber
bumper, it is effectively like putting a resistor in parallel with the
crystal, which obviously has undesirable effects on the operation of
the BFO oscillator.

The slowly decreasing resistance as the meter probes are held in
contact with the rubber is consistent with the fact that the BFO
drifts over time.

I suspected contaminants on the surface of the rubber, but after
cleaning it with iso alcohol, there is no change. Something in the
rubber is causing it to be conductive.

I wonder if somewhere out there, there are hams with K2s experiencing
BFO drift related to the same cause? If I got a conductive rubber
bumper in my kit, it's highly likely someone else has also.

Anyways, it's getting a little late right now. I'll communicate my
findings to Elecraft tomorrow (in case they aren't already reading
this).

73,
Mikael
VE8MT

On Sun, Apr 13, 2014 at 9:50 PM, Don Wilhelm w3...@embarqmail.com wrote:

Get a replacement L33 and see if that takes care of it.  You might wan to
request a replacement mounting resistor as well.

73,
Don W3FPR


On 4/13/2014 9:23 PM, TheMG . wrote:

Leads under L33 are flush cut as flat as possible and it is mounted on
the rubber bumper with half the stem cut off exactly as per the
instructions. The resistor was pushed down into the center to keep L33
secure and to prevent the resistor body from being pressed on by the
bottom cover.

No luck on resoldering L33 or the crystals underneath it. However I
did notice that when I pull up on the resistor so it isn't pressing
down on L33 (the inductor is at this point completely loose and free
to move around. I have the K2 upside down with the bottom cover
removed and it has been running this way for several hours with
absolutely no drift. BFO range is 4912.31 to 4917.85 and stays within
0.01 of that as it warms up.



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Re: [Elecraft] Fake FTDI chips

2014-04-15 Thread Jim Rhodes
The closest thing I have found to real RS232 ports for laptops are the
Edgeport USB converters. I just treat them like a serial port and they seem
to work in every way like a real serial port. I use an 8 port in the shack
and a 4 when portable. Prices have gone up I hear,I paid about $70 for the
pair off of Ebay.


On Tue, Apr 15, 2014 at 8:11 AM, ke9uw c-haw...@illinois.edu wrote:


 The only way I know to use a genuine RS-232 port is to use a desk top
 computer with a plug in board.  I would also like to use a lap-top computer
 and as far as I know RS-232 ports are not available.  If anyone knows
 differently, please let us in on the info.

 Willis 'Cookie' Cooke, TDXS DX Chairman
 K5EWJ  Trustee N5BPS, USS Cavalla, USS Stewart

 There may be some companies with the old Lenovos (Think Pad) about 1.5
 thick
 that are being replaced. I don't know where buy maybe you can find some.
 Maybe eBay if the resellers have them.



 -
 Chuck, KE9UW
 --
 View this message in context:
 http://elecraft.365791.n2.nabble.com/Fake-FTDI-chips-tp7587050p7587277.html
 Sent from the Elecraft mailing list archive at Nabble.com.
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-- 
Jim K0XU
j...@rhodesend.net
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[Elecraft] ant err pr flt error message?? also antenna adjacency problem??

2014-04-15 Thread Julie Royster
Hello all, we just got back our KX3 after under-warranty repair.
The technician included a message that the parts he replaced were usually
damaged if
1)  Connected to an antenna during a thunderstorm (nope, not here)
2)  Power over 100 watts on an adjacent antenna

QUESTION 1:  The KX3 has been using an inverted V wire antenna.  At its
closest point to a vertical antenna for our K3 they are about 30 feet apart.
Is this too close?  How far away would be far enough if K3 operator were
using 450 watts?I do recall one morning when I used K3 while Larry had
KX3 on.  I guess I will never do that again, but I would like to know what
distance is safe.  We have a neighbor a block away who runs high power.

QUESTION 2:  I just set the KX3 back up with KXPA100.  When Larry
transmitted at 5 watts all was OK but when he transmitted at 40 watts it
said ANT ERR  at the top of the screen and PR FLT at the bottom.
I checked the connections.  I checked the SWR of the antenna with a SWR
meter.  What do these messages mean (as they are not described in the
manual)?
Could these messages have to do with the KXPA100?

THANKS to anyone who can opine.
73,
Julie KT4JR



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Re: [Elecraft] ant err pr flt error message?? also antenna adjacencyproblem??

2014-04-15 Thread ejkkjh

Julie,
Question 1 is good question, and I am interested in the answers.
I sometimes run the KX3 and the K3 with KPA500 at the same time, on 
different bands and antennas but the antennas are fairly close together.
I don’t do this often, and so far no problems, but it had not occurred to me 
this would be a problem?

Emory  WM3M

-Original Message- 
From: Julie Royster

Sent: Tuesday, April 15, 2014 9:33 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] ant err pr flt error message?? also antenna 
adjacencyproblem??


Hello all, we just got back our KX3 after under-warranty repair.
The technician included a message that the parts he replaced were usually
damaged if
1) Connected to an antenna during a thunderstorm (nope, not here)
2) Power over 100 watts on an adjacent antenna

QUESTION 1:  The KX3 has been using an inverted V wire antenna.  At its
closest point to a vertical antenna for our K3 they are about 30 feet apart.
Is this too close?  How far away would be far enough if K3 operator were
using 450 watts?I do recall one morning when I used K3 while Larry had
KX3 on.  I guess I will never do that again, but I would like to know what
distance is safe.  We have a neighbor a block away who runs high power.

QUESTION 2:  I just set the KX3 back up with KXPA100.  When Larry
transmitted at 5 watts all was OK but when he transmitted at 40 watts it
said ANT ERR  at the top of the screen and PR FLT at the bottom.
I checked the connections.  I checked the SWR of the antenna with a SWR
meter.  What do these messages mean (as they are not described in the
manual)?
Could these messages have to do with the KXPA100?

THANKS to anyone who can opine.
73,
Julie KT4JR



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[Elecraft] k3, heil pr781 mic, behringer 1204usb mixer

2014-04-15 Thread buddy s
i want to improve my transmit audio using the above components.  has
anybody done this, and like to share any internal menu settings that need
to coincide with the hardware implementation.  thanks.

73 de,
w3bs, buddy spiegel
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[Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread David Cole
Hi,
Has anyone ordered this book from Lulu before?  Any idea what the
delivery time is like?  I ordered it before I ordered the radio to
insure it was here when I got the rig, and it is still not here...

Elecraft built the radio faster than Lulu can print the The K3 book...  

-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
 I've read, perhaps at the Yahoo KX3 group, that 
 Rose has been ill. I don't know if that affects 
 product availability or not.
 
 Phil w7ox
 
 On 4/14/14, 6:46 AM, Richard Range wrote:
  Does anyone know if Rose is still making the cases for Elecraft radios? I
  ordered mine back in Feb. for the KX3 and haven't heard from her since. Rich
  WB9SFG
 
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Re: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer

2014-04-15 Thread XE3/K5ENS
Are you going to be using ESSB?  If not I don't see much need for the
Behringer.  You only have a small amount of transmit bandwidth with the
stock filters.

Keith, XE3/K5ENS 



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[Elecraft] ANT ERR

2014-04-15 Thread jsdroyster
OK, I seem to have fixed the trouble but I don't understand it.

The KX3 screen had shown ANT ERR and PR FLT  but after I did manual tunes 
for the KXPA100 this no longer happened.  But why was this needed since the 
KXPA100 was already on auto tune?  Trying to learn...
Julie KT4JR 
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Re: [Elecraft] Fake FTDI chips

2014-04-15 Thread barry whittemore
I use  a 2 port PCI serial board in my desktop with a single (prolific) USB to 
Serial to handle 2 radios and the FSK for RTTY.

When i go portable with my laptop i use a Moxa Uport 1410 4 port USB to serial. 
It has worked fine for me at JOTA and Field day events. I keep it all in a 
travel case so when i go somewhere i just disconnect my K3 and leave all cables 
etc. all are replicated in my travel box. It is a seamless (almost) operation. 
The Moxa works great for me.

Barry

NF1O
 

 Date: Tue, 15 Apr 2014 06:11:31 -0700
 From: c-haw...@illinois.edu
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] Fake FTDI chips
 
 
 The only way I know to use a genuine RS-232 port is to use a desk top
 computer with a plug in board.  I would also like to use a lap-top computer
 and as far as I know RS-232 ports are not available.  If anyone knows
 differently, please let us in on the info.
  
 Willis 'Cookie' Cooke, TDXS DX Chairman
 K5EWJ  Trustee N5BPS, USS Cavalla, USS Stewart
 
 There may be some companies with the old Lenovos (Think Pad) about 1.5 thick
 that are being replaced. I don't know where buy maybe you can find some.
 Maybe eBay if the resellers have them.
 
 
 
 -
 Chuck, KE9UW
 --
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Re: [Elecraft] ANT ERR

2014-04-15 Thread Don Wilhelm

Julie,

You may hear from Dick Dievendorff on that condition  He is the firmware 
engineer for the KXPA100 and KXAT100.  Dick is quite responsive to 
customer's problems similar to yours.  He may even ask for some trace 
data to help him in attacking this problem.


There are situations when doing a TUNE where the KXPA100 can fault as 
the SWR varies while the tuner is in a tuning cycle.  I know Dick has 
been working on some timing and SWR tolerance algorithms to handle 
this condition smoothly.  However, I don't know the status of the latest 
changes.


I would suggest that you download and install the latest KXPA100 beta 
firmware to see if that helps.


73,
Don W3FPR

On 4/15/2014 10:19 AM, jsdroys...@nc.rr.com wrote:

OK, I seem to have fixed the trouble but I don't understand it.

The KX3 screen had shown ANT ERR and PR FLT  but after I did manual tunes 
for the KXPA100 this no longer happened.  But why was this needed since the KXPA100 was already on 
auto tune?  Trying to learn...



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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread Phil Hystad
Complain to LuLu and then ask for a downloadable PDF copy while you wait.  I 
ordered my copy from LuLu but can't remember how long it took.

PEH's iPad

 On Apr 15, 2014, at 7:04 AM, David Cole d...@nk7z.net wrote:
 
 Hi,
 Has anyone ordered this book from Lulu before?  Any idea what the
 delivery time is like?  I ordered it before I ordered the radio to
 insure it was here when I got the rig, and it is still not here...
 
 Elecraft built the radio faster than Lulu can print the The K3 book...  
 
 -- 
 Thanks and 73's,
 For equipment, and software setups and reviews see:
 www.nk7z.net
 for MixW support see;
 http://groups.yahoo.com/neo/groups/mixw/info
 for Dopplergram information see:
 http://groups.yahoo.com/neo/groups/dopplergram/info
 for MM-SSTV see:
 http://groups.yahoo.com/neo/groups/MM-SSTV/info
 
 
 On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
 I've read, perhaps at the Yahoo KX3 group, that 
 Rose has been ill. I don't know if that affects 
 product availability or not.
 
 Phil w7ox
 
 On 4/14/14, 6:46 AM, Richard Range wrote:
 Does anyone know if Rose is still making the cases for Elecraft radios? I
 ordered mine back in Feb. for the KX3 and haven't heard from her since. Rich
 WB9SFG
 
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Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread Phil Wheeler
Good job of troubleshooting, Mikael. It's really 
good you found this rather obscure problem. Who 
would have guessed?


Perhaps there was a bad lot of rubber with 
contaminants that you particular bumper was made from.


Mainly you now have the problem identified and can 
correct it with a new part.


Phil w7ox

On 4/14/14, 11:15 PM, TheMG . wrote:

Wow, you'll never believe what I just found out!

There is absolutely nothing wrong at all with L33. It turns out it's
the rubber bumper that is at fault!

I found this out by pressing down on the stem of the bumper with the
plastic tuning tool, instead of pressing on the inductor. Guess what?
Frequency started to drift!!!

On a hunch, I decided to get my multimeter and measure on the bottom
of the rubber bumper. It's slightly conductive! Starts at about 3
megohms and if I hold the multimeter probes in place the resistance
slowly starts to drop down to 1 megohm and below. After a couple
minutes holding the probes in place about 1/4 inch apart on the bottom
of the bumper, the resistance got down to 500k!

Since the solder pads for X3 BFO crystal are underneath the rubber
bumper, it is effectively like putting a resistor in parallel with the
crystal, which obviously has undesirable effects on the operation of
the BFO oscillator.

The slowly decreasing resistance as the meter probes are held in
contact with the rubber is consistent with the fact that the BFO
drifts over time.

I suspected contaminants on the surface of the rubber, but after
cleaning it with iso alcohol, there is no change. Something in the
rubber is causing it to be conductive.

I wonder if somewhere out there, there are hams with K2s experiencing
BFO drift related to the same cause? If I got a conductive rubber
bumper in my kit, it's highly likely someone else has also.

Anyways, it's getting a little late right now. I'll communicate my
findings to Elecraft tomorrow (in case they aren't already reading
this).

73,
Mikael
VE8MT


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Re: [Elecraft] Fake FTDI chips

2014-04-15 Thread Don Wilhelm

Cookie,

There *are* good USB to serial adapters.  Buy reputable brands from 
reputable suppliers and you should not have a problem.
If you buy one that does not work, it should be returnable as defective 
if the dealer is reputable.
The Elecraft KUSB uses a genuine FTDI chip, so that one should not be a 
problem.
I suspect the 'bargain counter' no-name brands may be the major ones 
with the fake chips.


73,
Don W3FPR

On 4/15/2014 9:11 AM, ke9uw wrote:

The only way I know to use a genuine RS-232 port is to use a desk top
computer with a plug in board.  I would also like to use a lap-top computer
and as far as I know RS-232 ports are not available.  If anyone knows
differently, please let us in on the info.
  



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Re: [Elecraft] Rising current on Tx (K3)

2014-04-15 Thread Iain G4SGX

Apologies if this is covered before.

I've just noticed some new behaviour on my K3.

While on 10 RTTY chasing DX, I noticed the current indication on the PSU 
rising during a long TX.


I switched to the current meter on the K3.

At the start is was about 15Amps (100W RTTY TX) but soon rose.

On a 20 second TX it rose to about 26 Amps (!) and the Hi Curr error 
message came up on screen.


The rig USED to be OK for extended periods of RTTY.

I have not tried on any other bands.


Can anyone explain this behaviour?

Iain G4SGX

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Re: [Elecraft] Rising current on Tx (K3)

2014-04-15 Thread barry whittemore
I had a similar problem and it was found to be some RFI getting into the power 
cable. I wound several turns of the power cable around a 2.5 inch ferite toroid 
and problem solved.

Barry

NF1O
 

 Date: Tue, 15 Apr 2014 16:00:35 +0100
 From: g4...@justfans.co.uk
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] Rising current on Tx (K3)
 
 Apologies if this is covered before.
 
 I've just noticed some new behaviour on my K3.
 
 While on 10 RTTY chasing DX, I noticed the current indication on the PSU 
 rising during a long TX.
 
 I switched to the current meter on the K3.
 
 At the start is was about 15Amps (100W RTTY TX) but soon rose.
 
 On a 20 second TX it rose to about 26 Amps (!) and the Hi Curr error 
 message came up on screen.
 
 The rig USED to be OK for extended periods of RTTY.
 
 I have not tried on any other bands.
 
 
 Can anyone explain this behaviour?
 
 Iain G4SGX
 
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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread David Cole
Thanks!!!
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Tue, 2014-04-15 at 07:55 -0700, Phil Hystad wrote:
 Complain to LuLu and then ask for a downloadable PDF copy while you wait.  I 
 ordered my copy from LuLu but can't remember how long it took.
 
 PEH's iPad
 
  On Apr 15, 2014, at 7:04 AM, David Cole d...@nk7z.net wrote:
  
  Hi,
  Has anyone ordered this book from Lulu before?  Any idea what the
  delivery time is like?  I ordered it before I ordered the radio to
  insure it was here when I got the rig, and it is still not here...
  
  Elecraft built the radio faster than Lulu can print the The K3 book...  
  
  -- 
  Thanks and 73's,
  For equipment, and software setups and reviews see:
  www.nk7z.net
  for MixW support see;
  http://groups.yahoo.com/neo/groups/mixw/info
  for Dopplergram information see:
  http://groups.yahoo.com/neo/groups/dopplergram/info
  for MM-SSTV see:
  http://groups.yahoo.com/neo/groups/MM-SSTV/info
  
  
  On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
  I've read, perhaps at the Yahoo KX3 group, that 
  Rose has been ill. I don't know if that affects 
  product availability or not.
  
  Phil w7ox
  
  On 4/14/14, 6:46 AM, Richard Range wrote:
  Does anyone know if Rose is still making the cases for Elecraft radios? I
  ordered mine back in Feb. for the KX3 and haven't heard from her since. 
  Rich
  WB9SFG
  
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Re: [Elecraft] Rising current on Tx (K3)

2014-04-15 Thread Don Wilhelm

Iain,

One of the first things to check is the connections to your power 
supply.  Be certain they are all tight.
Why?  The K3 attempts to control and maintain the power output using a 
closed loop system.
If the power supply voltage drops at the K3 terminals, the current must 
increase to maintain the same power level.  Normally, that is good, but 
if the power cable or its connections are not capable of maintaining a 
good voltage level to the K3, the results will be as you indicated.


This is not the only possible cause of increased current draw, but it is 
the first thing to check.


73,
Don W3FPR

On 4/15/2014 11:00 AM, Iain G4SGX wrote:

Apologies if this is covered before.

I've just noticed some new behaviour on my K3.

While on 10 RTTY chasing DX, I noticed the current indication on the 
PSU rising during a long TX.


I switched to the current meter on the K3.

At the start is was about 15Amps (100W RTTY TX) but soon rose.

On a 20 second TX it rose to about 26 Amps (!) and the Hi Curr error 
message came up on screen.


The rig USED to be OK for extended periods of RTTY.

I have not tried on any other bands.



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Re: [Elecraft] Rising current on Tx (K3)

2014-04-15 Thread XE3/K5ENS
Also anytime you have a power issue it doesn't hurt to do the transmit
calibration.


Keith, XE3/K5ENS



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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread David Cole
Hi,

I did just that...  We will see how they respond.  I now have a case
number.  All automated so far.  No human involved.  Thank you for the
idea.

-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Tue, 2014-04-15 at 07:55 -0700, Phil Hystad wrote:
 Complain to LuLu and then ask for a downloadable PDF copy while you wait.  I 
 ordered my copy from LuLu but can't remember how long it took.
 
 PEH's iPad
 
  On Apr 15, 2014, at 7:04 AM, David Cole d...@nk7z.net wrote:
  
  Hi,
  Has anyone ordered this book from Lulu before?  Any idea what the
  delivery time is like?  I ordered it before I ordered the radio to
  insure it was here when I got the rig, and it is still not here...
  
  Elecraft built the radio faster than Lulu can print the The K3 book...  
  
  -- 
  Thanks and 73's,
  For equipment, and software setups and reviews see:
  www.nk7z.net
  for MixW support see;
  http://groups.yahoo.com/neo/groups/mixw/info
  for Dopplergram information see:
  http://groups.yahoo.com/neo/groups/dopplergram/info
  for MM-SSTV see:
  http://groups.yahoo.com/neo/groups/MM-SSTV/info
  
  
  On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
  I've read, perhaps at the Yahoo KX3 group, that 
  Rose has been ill. I don't know if that affects 
  product availability or not.
  
  Phil w7ox
  
  On 4/14/14, 6:46 AM, Richard Range wrote:
  Does anyone know if Rose is still making the cases for Elecraft radios? I
  ordered mine back in Feb. for the KX3 and haven't heard from her since. 
  Rich
  WB9SFG
  
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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread Richard Solomon

IIRC, I got my copy in a few days.

73, Dick, W1KSZ


On 4/15/2014 7:55 AM, Phil Hystad wrote:

Complain to LuLu and then ask for a downloadable PDF copy while you wait.  I 
ordered my copy from LuLu but can't remember how long it took.

PEH's iPad


On Apr 15, 2014, at 7:04 AM, David Cole d...@nk7z.net wrote:

Hi,
Has anyone ordered this book from Lulu before?  Any idea what the
delivery time is like?  I ordered it before I ordered the radio to
insure it was here when I got the rig, and it is still not here...

Elecraft built the radio faster than Lulu can print the The K3 book...

--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info



On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
I've read, perhaps at the Yahoo KX3 group, that
Rose has been ill. I don't know if that affects
product availability or not.

Phil w7ox


On 4/14/14, 6:46 AM, Richard Range wrote:
Does anyone know if Rose is still making the cases for Elecraft radios? I
ordered mine back in Feb. for the KX3 and haven't heard from her since. Rich
WB9SFG

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[Elecraft] K3 and Kantronics TNC

2014-04-15 Thread Graham Pemberton G7NEH
Hi all,

Sorry if this is off topic, I have just put together my K3 s/n 08095 with the 
following options,
KPA3, KAT3 and KXV3A I plan to add more options later when I’ve saved up some 
more cash.

The K3 is working fine and is such a joy to use, one thing I am planning on 
doing is wiring up a Kantronics KAM XL tnc to the K3 to try some pactor, I’m a 
bit confused on this, do I have to go from the KAM XL to the RS232 port and the 
audio in/out connectors on the K3 or can I just use the RS232 port on the K3.

any guidance on this would be gratefully received

Regards
Graham G7NEH

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Re: [Elecraft] PR6 power plug

2014-04-15 Thread Jeff Cathrow
Collin and the group; 
 
Here's a neat and simple solution that I discovered when I got my PR6:  If you 
need to also power another Elecraft accessory such as a P3 you will need a way 
to plug the two phono (RCA) plugs into the single phono jack in the back of the 
K3 (accessory power outlet).
 
Rooting around my big bag of audio connectors I happened across a Radio Shack 
gold-plated two-into-one RCA adapter plug and---voila!---I realized it would 
allow me to power both accessories simultaneously.  Before I ran across the 
adapter I realized I had no way to power my new preamp with the P3 already 
plugged in but now my dilemma was solved.
 
I would check with an pro audio shop for this adapter if there is no Radio 
Shack outlet in your area as these 2-into1 RCA types are probably not so common 
elsewhere.  
 
Now my K3's stock 12v accessory power jack easily provides enough juice to both 
P3 and PR6 simultaneously and it saved me from having to use another separate 
12v source to run the PR6 in the process.

73,
 
Jeff, NH7RO
K3 5528 P3 1397 KPA500 0250Another Elecraft Happy Camper
 
 
 
 
 

cathrowinternatio...@hotmail.com
 
 

  
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Re: [Elecraft] K2 BFO drift problem, acetone?

2014-04-15 Thread Fred Townsend

Congratulations Mikael. That sounds like a tough one to track down. I have seen 
the symptoms before. While it is possible the rubber was not fully cured, my 
bet is chemical contamination. The symptoms are classic for acetone 
contamination. There is a mistaken belief acetone is a great flux remover. It’s 
not! While it does remove flux, it can cause latent defects that take years to 
show up. Let me make it clear I am not accusing you of using acetone. I am 
letting, others who profess the use of acetone for cleaning, know what they can 
look forward to. By the way, there are other compounds, such as nail polish 
remover, that contain acetone. Stick to alcohol and you’ll be alright.
73, Fred, AE6QL


-Original Message-
From: TheMG . th...@mg3000.net
Sent: Apr 14, 2014 11:15 PM
To: d...@w3fpr.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K2 BFO drift problem

Wow, you'll never believe what I just found out!

There is absolutely nothing wrong at all with L33. It turns out it's
the rubber bumper that is at fault!

I found this out by pressing down on the stem of the bumper with the
plastic tuning tool, instead of pressing on the inductor. Guess what?
Frequency started to drift!!!

On a hunch, I decided to get my multimeter and measure on the bottom
of the rubber bumper. It's slightly conductive! Starts at about 3
megohms and if I hold the multimeter probes in place the resistance
slowly starts to drop down to 1 megohm and below. After a couple
minutes holding the probes in place about 1/4 inch apart on the bottom
of the bumper, the resistance got down to 500k!

Since the solder pads for X3 BFO crystal are underneath the rubber
bumper, it is effectively like putting a resistor in parallel with the
crystal, which obviously has undesirable effects on the operation of
the BFO oscillator.

The slowly decreasing resistance as the meter probes are held in
contact with the rubber is consistent with the fact that the BFO
drifts over time.

I suspected contaminants on the surface of the rubber, but after
cleaning it with iso alcohol, there is no change. Something in the
rubber is causing it to be conductive.

I wonder if somewhere out there, there are hams with K2s experiencing
BFO drift related to the same cause? If I got a conductive rubber
bumper in my kit, it's highly likely someone else has also.

Anyways, it's getting a little late right now. I'll communicate my
findings to Elecraft tomorrow (in case they aren't already reading
this).

73,
Mikael
VE8MT

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Re: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer

2014-04-15 Thread Jim Brown

On 4/15/2014 7:04 AM, buddy s wrote:

i want to improve my transmit audio using the above components.  has
anybody done this, and like to share any internal menu settings that need
to coincide with the hardware implementation.


The K3 by itself, used with any decent mic, provides excellent audio. 
Heil mics are over-rated, over-advertised, and over-priced. The Yamaha 
CM-500 headset mic produces very clean audio plugged directly into the 
K3, and the K3 has a built in equalizer for both TX and RX. The 
headphones also sound great and are quite comfortable, even for long 
periods. The CM500 sells for about $60. Many of us are using it.


Behringer has earned a reputation in the audio world (where I worked for 
45 years until i retired) as a lousy company with poor quality products 
that were often designs stolen from other companies.


73, Jim K9YC
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[Elecraft] problems with what I am receiving!

2014-04-15 Thread Steve Saslow
2 problems:   1)  why did I suddenly get a message that I have been 
unsubscribed? I never requested that...tho' I may be about to (see below)  
2)   for some reason, I suddenly started receiving each entry on the elecraft 
mailman as individual emails, in my inbox.   I own and use a 
KX-3, a K-1, and a KX-1.  Almost all those other messages and discussions are 
not of much interest  for me, all that stuff about the K-3, the amplifiers, the 
panadapter, the K-2, QRQ.   But I am getting every one of them, one by one, as 
separate emails in my inbox!  That is wasting my time, to have to 
delete so many every day. It is a serious nuisance. My computer is 
an iMac, up to date OS-X system. And I am using Safari as the browser for this. 
- I am OK using a computer, but I am not a computer guru, geek or nerd: ie, I 
need some careful help, to fix what is going on, so I can bet back to receiving 
only one or two elecraft emails a day, which have a 
 table of contents I can search through WITHIN that one email...   Can you 
PLEASE help me?Thank you and 73, Steve Saslow  k7ew 
   
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Re: [Elecraft] K3 and Kantronics TNC

2014-04-15 Thread Jim Brown

On 4/15/2014 8:51 AM, Graham Pemberton G7NEH wrote:

I’m a bit confused on this, do I have to go from the KAM XL to the RS232 port 
and the audio in/out connectors on the K3 or can I just use the RS232 port on 
the K3.


The Kantronics generates data as audio to modulate the K3, and decodes 
the received audio to put characters on your screen. You will need audio 
in and out to/from the K3. The RS232 port in the K3 allows a computer to 
control the K3, and to get information from the K3 about frequency and 
operating mode. It does NOT include audio.


That's all I know about this box, so you'll have to study the manual to 
understand what to do with the serial port -- that is, does it go to the 
computer or to the radio, and how the Kantronics uses it.


73,

Jim K9YC
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Re: [Elecraft] K3 and Kantronics TNC

2014-04-15 Thread Lynn W. Taylor, WB6UUT
The radio port on the KAM (and most other TNCs) is a DE-9 connector.  
It's the same D-Shell connector that would be a 9 pin serial port.


The 9 pin connector on the KAM is not a serial port.  The 25 pin 
connector goes to your computer, and is a serial port.


Typically the cable from the KAM to the radio has either a MIC connector 
(audio in and PTT) and a speaker connector, or it could go to separate 
audio and PTT jacks on the back of the K3.


I don't have a K3, I have at least one KAM.

http://wa8lmf.net/miscinfo/Kantronics_TNC_Radio_Conn.pdf

73 -- Lynn

On 4/15/2014 9:38 AM, Jim Brown wrote:

On 4/15/2014 8:51 AM, Graham Pemberton G7NEH wrote:
I’m a bit confused on this, do I have to go from the KAM XL to the 
RS232 port and the audio in/out connectors on the K3 or can I just 
use the RS232 port on the K3.


The Kantronics generates data as audio to modulate the K3, and decodes 
the received audio to put characters on your screen. You will need 
audio in and out to/from the K3. The RS232 port in the K3 allows a 
computer to control the K3, and to get information from the K3 about 
frequency and operating mode. It does NOT include audio.


That's all I know about this box, so you'll have to study the manual 
to understand what to do with the serial port -- that is, does it go 
to the computer or to the radio, and how the Kantronics uses it.


73,

Jim K9YC
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Re: [Elecraft] ant err pr flt error message?? also antenna adjacency problem??

2014-04-15 Thread Toby Pennington
Nr 2Be very careful using 500 watts out on a vertical only 30 
feet away to the v antenna of your KX3 as you will blow out the front 
end on the radio,  usually diodes etc.  The best thing to do is to 
disconnect the antenna of the rig not being used.  Voltage can come in 
on your antennas and sometimes it take only a few volts to cause problems.


I believe Elecraft use some protection at the front end,  but not a 
lot.  Someone else may know more about this.  I have been there and do 
that so know first hand the trouble you can get into.


Toby  K4NH


On 4/15/2014 9:33 AM, Julie Royster wrote:

Hello all, we just got back our KX3 after under-warranty repair.
The technician included a message that the parts he replaced were usually
damaged if
1)  Connected to an antenna during a thunderstorm (nope, not here)
2)  Power over 100 watts on an adjacent antenna

QUESTION 1:  The KX3 has been using an inverted V wire antenna.  At its
closest point to a vertical antenna for our K3 they are about 30 feet apart.
Is this too close?  How far away would be far enough if K3 operator were
using 450 watts?I do recall one morning when I used K3 while Larry had
KX3 on.  I guess I will never do that again, but I would like to know what
distance is safe.  We have a neighbor a block away who runs high power.

QUESTION 2:  I just set the KX3 back up with KXPA100.  When Larry
transmitted at 5 watts all was OK but when he transmitted at 40 watts it
said ANT ERR  at the top of the screen and PR FLT at the bottom.
I checked the connections.  I checked the SWR of the antenna with a SWR
meter.  What do these messages mean (as they are not described in the
manual)?
Could these messages have to do with the KXPA100?

THANKS to anyone who can opine.
73,
Julie KT4JR



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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread Cady, Fred
Hi David,
Please let me know how this turns out.  Lulu has usually been pretty responsive 
when I have opened a case with them.  
73,
Fred KE7X

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Cole
Sent: Tuesday, April 15, 2014 9:19 AM
To: Phil Hystad
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] The Elecraft K3, design configuration, etc...

Hi,

I did just that...  We will see how they respond.  I now have a case number.  
All automated so far.  No human involved.  Thank you for the idea.

--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Tue, 2014-04-15 at 07:55 -0700, Phil Hystad wrote:
 Complain to LuLu and then ask for a downloadable PDF copy while you wait.  I 
 ordered my copy from LuLu but can't remember how long it took.
 
 PEH's iPad
 
  On Apr 15, 2014, at 7:04 AM, David Cole d...@nk7z.net wrote:
  
  Hi,
  Has anyone ordered this book from Lulu before?  Any idea what the
  delivery time is like?  I ordered it before I ordered the radio to
  insure it was here when I got the rig, and it is still not here...
  
  Elecraft built the radio faster than Lulu can print the The K3 book...  
  
  -- 
  Thanks and 73's,
  For equipment, and software setups and reviews see:
  www.nk7z.net
  for MixW support see;
  http://groups.yahoo.com/neo/groups/mixw/info
  for Dopplergram information see:
  http://groups.yahoo.com/neo/groups/dopplergram/info
  for MM-SSTV see:
  http://groups.yahoo.com/neo/groups/MM-SSTV/info
  
  
  On Mon, 2014-04-14 at 07:48 -0700, Phil Wheeler wrote:
  I've read, perhaps at the Yahoo KX3 group, that 
  Rose has been ill. I don't know if that affects 
  product availability or not.
  
  Phil w7ox
  
  On 4/14/14, 6:46 AM, Richard Range wrote:
  Does anyone know if Rose is still making the cases for Elecraft radios? I
  ordered mine back in Feb. for the KX3 and haven't heard from her since. 
  Rich
  WB9SFG
  
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Re: [Elecraft] K3 and Kantronics TNC

2014-04-15 Thread Joe Subich, W4TV


Simply put, you need to connect audio out from the Kantronics to Line IN
on the K3, Audio IN on the KAM to LINE OUT on the K3,  PTT Out on the
KAM to PTT IN (RCA or ACC) on the K3 and, if you use it FSK, on the KAM
to the FSK IN pin on the K3 ACC jack.  There is no RS-232 connection
between the two.

Your computer will use one serial port to connect to the K3 to control
frequency and mode if your logging program supports that.  Your computer
will use *a second* serial port to connect the KAM with an appropriate
*terminal emulator* or digital control program.

73,

   ... Joe, W4TV


On 4/15/2014 12:38 PM, Jim Brown wrote:

On 4/15/2014 8:51 AM, Graham Pemberton G7NEH wrote:

I’m a bit confused on this, do I have to go from the KAM XL to the
RS232 port and the audio in/out connectors on the K3 or can I just use
the RS232 port on the K3.


The Kantronics generates data as audio to modulate the K3, and decodes
the received audio to put characters on your screen. You will need audio
in and out to/from the K3. The RS232 port in the K3 allows a computer to
control the K3, and to get information from the K3 about frequency and
operating mode. It does NOT include audio.

That's all I know about this box, so you'll have to study the manual to
understand what to do with the serial port -- that is, does it go to the
computer or to the radio, and how the Kantronics uses it.

73,

Jim K9YC
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Re: [Elecraft] K3- ergonomics

2014-04-15 Thread Jim Lowman

Anyone wanting more knobs and single functions can always buy a TS-990.
It's only about $800 more than my loaded K3.

Look at all the advantages that you'd have, in addition:

--  larger footprint on the desk
--  ~ 140 knobs to play with
--  all sorts of controls that you may never use
--  fantastic after-the-sale support by Kenwood (yeah, right!)

Radios are somewhat like a good-quality paddle for CW.
You have to buy the one that feels right for you.

73 de Jim - AD6CW

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Re: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer

2014-04-15 Thread barry whittemore
We use a Behringer 802 Mic Mixer at our station. No to help tune the audio (the 
radio does that fine) but my wife and i are on together often and we do not 
have to manually switch mics. It took a few mods to do it all, One is the 802 
has the 48 volt phantom voltage and we use PC headsets (CM-500) that need much 
less voltage. I just added a voltage divider to it internally and it works 
fine. The output of the 802 is higher than needed so i made my cable with a 
built in PAD, it was 10s of Db but i do not remember just what.  It also allows 
us to have inputs from the soundcard for voice keying in contests as the line 
is was lower than mic in. 

we also have a behringer headphone amp (4CH) and both work well. The Mic mixer 
does alow slight tuning for the differences between our voices but its not 
wildly adjustable. We do have a unique situation and it worked for us, I assume 
if we each had Heil prosets it would work as well, but i found mine 
uncomfortable and sold them.

as far as the internal settings, i do not have them in front of me but we 
tweaked them after setting the 802 buy getting on the air and getting comments 
from a friend.

settings that were better for me were not as good for my wife so it took some 
compromise.

at least i have a wife that says things like why dont we get a K3? and when 
are we putting up a tower?

Barry

NF1O


 

 Date: Tue, 15 Apr 2014 09:04:06 -0500
 From: buddy...@gmail.com
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer
 
 i want to improve my transmit audio using the above components. has
 anybody done this, and like to share any internal menu settings that need
 to coincide with the hardware implementation. thanks.
 
 73 de,
 w3bs, buddy spiegel
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Re: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer

2014-04-15 Thread David Bunte
Buddy -

I almost never operate phone, but as a retired broadcast announcer, I am
concerned about audio quality.  I set up my K3 with my CM500 with care...
and the few phone contacts I have had have resulted in some VERY positive
comments on my audio quality... including some who assumed that, as a
former broadcaster, I was using thousands of dollars worth of mic,
equalization, and processing hardware.  Other K3 users believe me when I
say it is just the K3 with the equalization carefully set to sound good.

It appears from the response you got from Barry, that he uses the mixer
primarily to facilitate two mics, and for phantom power.

I wonder what deficits you perceive in your transmit audio that make you
want to use a very expensive mic and an external mixer.

73 de Dave - K9FN


On Tue, Apr 15, 2014 at 1:32 PM, barry whittemore wb1...@hotmail.comwrote:

 We use a Behringer 802 Mic Mixer at our station. No to help tune the audio
 (the radio does that fine) but my wife and i are on together often and we
 do not have to manually switch mics. It took a few mods to do it all, One
 is the 802 has the 48 volt phantom voltage and we use PC headsets (CM-500)
 that need much less voltage. I just added a voltage divider to it
 internally and it works fine. The output of the 802 is higher than needed
 so i made my cable with a built in PAD, it was 10s of Db but i do not
 remember just what.  It also allows us to have inputs from the soundcard
 for voice keying in contests as the line is was lower than mic in.

 we also have a behringer headphone amp (4CH) and both work well. The Mic
 mixer does alow slight tuning for the differences between our voices but
 its not wildly adjustable. We do have a unique situation and it worked for
 us, I assume if we each had Heil prosets it would work as well, but i found
 mine uncomfortable and sold them.

 as far as the internal settings, i do not have them in front of me but we
 tweaked them after setting the 802 buy getting on the air and getting
 comments from a friend.

 settings that were better for me were not as good for my wife so it took
 some compromise.

 at least i have a wife that says things like why dont we get a K3? and
 when are we putting up a tower?

 Barry

 NF1O




  Date: Tue, 15 Apr 2014 09:04:06 -0500
  From: buddy...@gmail.com
  To: elecraft@mailman.qth.net
  Subject: [Elecraft] k3, heil pr781 mic, behringer 1204usb mixer
 
  i want to improve my transmit audio using the above components. has
  anybody done this, and like to share any internal menu settings that need
  to coincide with the hardware implementation. thanks.
 
  73 de,
  w3bs, buddy spiegel
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Re: [Elecraft] ant err pr flt error message?? also antenna adjacency problem??

2014-04-15 Thread Fred Jensen

On 4/15/2014 6:33 AM, Julie Royster wrote:


QUESTION 1:  The KX3 has been using an inverted V wire antenna.  At its
closest point to a vertical antenna for our K3 they are about 30 feet apart.
Is this too close?


Probably.  Conductors in the near field of an antenna essentially become 
part of the antenna, like parasitic elements an in a yagi, and can carry 
a major fraction of the power delivered to the antenna.  30 feet is 1/4 
wave at 40 meters.



How far away would be far enough if K3 operator were
using 450 watts?


It depends on frequency and size of the antennae, and to some extent 
orientation of the two, however polarization in the near field isn't a 
huge factor.  Several wavelengths is probably a good place to start.


QUESTION 2:  I just set the KX3 back up with KXPA100.  When Larry
transmitted at 5 watts all was OK but when he transmitted at 40 watts it
said ANT ERR  at the top of the screen and PR FLT at the bottom.
I checked the connections.  I checked the SWR of the antenna with a SWR
meter.  What do these messages mean (as they are not described in the
manual)?
Could these messages have to do with the KXPA100?


Don't know, don't have a KX3 or KXPA100.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

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Re: [Elecraft] problems with what I am receiving!

2014-04-15 Thread Bill W2BLC
I have my setting as: NO EMAIL - I look at things on the Internet only. 
Therefore, I see the entire list of all posts and only click on those I 
wish to read (those that interest me). You could also look at: 
http://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html 
Again, reading only those of interest to you.


The latter is where I generally read from and only use the real list 
when I desire to post something.


Bill K-Line



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Re: [Elecraft] The Elecraft K3, design configuration, etc...

2014-04-15 Thread David Cole
Hi Fred,

I will do that, and thank you for taking an interest in this...  Did not
know you were on this list.
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Tue, 2014-04-15 at 10:55 -0600, Cady, Fred wrote:
 Hi David,
 Please let me know how this turns out.  Lulu has usually been pretty 
 responsive when I have opened a case with them.  
 73,
 Fred KE7X
 
 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Cole
 Sent: Tuesday, April 15, 2014 9:19 AM
 To: Phil Hystad
 Cc: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] The Elecraft K3, design configuration, etc...
 


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Re: [Elecraft] K3- ergonomics

2014-04-15 Thread Bill W2BLC
And the TS-990 is huge on the desk and very heavy to move about. Not my 
cuppa! And, I have always been a Kenwood fan.


Bill K-Line
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[Elecraft] Heat Sinks

2014-04-15 Thread Gary Schultz
Heat Sinks, both with and without call sign are back in stock at
N8WTT.COMthanks for your patience. Gary
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[Elecraft] K3: ESSB filter?

2014-04-15 Thread tomb18
Hi,I was wondering if one can use the FM filter if you set the width to 6kHz 
for ESSB mode or do you need a 6kHz filter?
Thanks
Tom
vba2fsq.com
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Re: [Elecraft] ant err pr flt error message?? also antenna adjacency problem??

2014-04-15 Thread Edward R Cole
This has been discussed recently so there may be something in the 
reflector archive.


Space loss formula are for far-field situations:
Pn = 32.4 + 20Log(F) + 20Log(d), where Pn is in dBm, F in MHz, d in km

Antennas as close as you have are in the antenna near-field which has 
much more complicated math which I am not going to attempt.  So the 
only way to determine what is safe is to measure power coming in on 
the KX3 antenna when you transmit with the K3 (plus amp) on the other 
antenna running whatever power you plan to use.


I know many hams do not own a lot of sophisticated test equipment so 
I offer three ways to make the measurement:


1-  A simple method would be to connect an ordinary power meter (SWR 
meter) to the KX3 antenna and connect the other connector to a load 
(no radio connected).  Connect so you read forward power toward the 
load.  I'm going to assume your meter is capable of measuring 10w 
full scale so a small movement of the indicator would show about 1% 
(0.1w) indication.  That level is 100mw which is about 100 times too 
strong for the KX3 receiver to survive.  In fact maybe the KX3 can 
handle 10mw but better to be safe by using 1mw as the maximum safe 
input power limit.


2-  One can measure weaker signals if you could obtain use of a HP432 
microwave power meter as it measures from -20 to +10 dBm* (but will 
burn out above this range).  Probably you would want the owner of the 
meter to run the test since they are expensive and delicate.  *0.001 
to 10mw; attenuators should be used initially like, below.


3-  If you have access to some coaxial attenuators you could place 
them inline with the antenna and your receiver and see what s-meter 
reading results.  I would start with at least 40-dB for safety for 
your radio (KX3 in your case).  if s-meter readings are too low then 
remove attenuation in 10-dB steps until you see full scale reading of 
the s-meter.  At this point if you still have any attenuation in the 
line then the power coming into your antenna is too strong for the radio.


For reference my KX3 reads S9+50 with a 0 dBm (1mw) signal from my 
XG3 on 20-MHz (with PRE off).


I have a similar situation with 80/40m inverted-V hung on the same 
tower as my triband yagi with apex about 12 feet below the yagi.  I 
have a 6m yagi at 30-feet below and often monitor 6m while using my 
K3 on HF bands (that seems to be OK but not running the K3+125w amp 
to the other 6m yagi 50-feet horizontally distant).


QUESTION 1:  The KX3 has been using an inverted V wire antenna.  At its
closest point to a vertical antenna for our K3 they are about 30 feet apart.
Is this too close?  How far away would be far enough if K3 operator were
using 450 watts?I do recall one morning when I used K3 while Larry had
KX3 on.  I guess I will never do that again, but I would like to know what
distance is safe.  We have a neighbor a block away who runs high power.

THANKS to anyone who can opine.
73,
Julie KT4JR


73, Ed - KL7UW
http://www.kl7uw.com
Kits made by KL7UW
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] K3: ESSB filter?

2014-04-15 Thread Oliver Dröse


Yes, works since one of the latest firmware versions.

73, Olli

Contest, DX  radio projects: http://www.dh8bqa.de


Am 15.04.2014 22:21, schrieb tom...@videotron.ca:

Hi,I was wondering if one can use the FM filter if you set the width to 6kHz 
for ESSB mode or do you need a 6kHz filter?
Thanks
Tom
vba2fsq.com
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Re: [Elecraft] Mic and headphone

2014-04-15 Thread David Woolley
Actually, the network termination impedance for two wire phone lines is 
important, as it is an important parameter in the design of the two to 
four wire hybrid.  http://www1.btwebworld.com/sinet/351v4p5.pdf gives 
specifications for the UK network, which are somewhat higher than 600 ohms.


Note these are the system values at audio frequencies; they are not the 
characteristic impedance of the line.  The line will typically be too 
short for that to be significant.


--
David Woolley
Owner K2 06123

On 15/04/14 07:37, Jim Brown wrote:

On 4/14/2014 4:46 PM, Harry_Yingst wrote:

Phone lines are Typically 600 ohms


Actually, the Zo of phone lines at radio frequencies is about 80 ohms,
and varies widely with frequency in the audio spectrum. That
characteristic is determined by the diameter, spacing, and insulation of
the twisted pairs used to carry the signal. They have not been 600 ohms
for at least 75 years. More than 40 years ago, it was standard practice



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Re: [Elecraft] K3: ESSB filter?

2014-04-15 Thread Tom
Thanks! 




 Original message 
From: Oliver Dröse dro...@necg.de 
Date: 15/04/2014  16:24  (GMT-05:00) 
To: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] K3: ESSB filter? 
 

Yes, works since one of the latest firmware versions.

73, Olli

Contest, DX  radio projects: http://www.dh8bqa.de


Am 15.04.2014 22:21, schrieb tom...@videotron.ca:
 Hi,I was wondering if one can use the FM filter if you set the width to 6kHz 
 for ESSB mode or do you need a 6kHz filter?
 Thanks
 Tom
 vba2fsq.com
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Re: [Elecraft] Mic and headphone

2014-04-15 Thread Jim Brown

On 4/15/2014 1:36 PM, David Woolley wrote:
Note these are the system values at audio frequencies; they are not 
the characteristic impedance of the line.  The line will typically be 
too short for that to be significant. 


Yes and no. We discussed this a week or so ago. Zo is not a constant, 
nor is it resistive at most frequencies. See 
http://k9yc.com/TransLines-LowFreq.pdf


A telephone line may, indeed, too short to exhibit transmission line 
properties at audio frequencies, but it will certainly behave as a 
transmission line when it carries DSL, which has spectrum extending well 
into the MHz range. And a line several miles long WILL exhibit 
transmission line properties at high audio frequencies.


Thanks for the link to the document showing the termination. What that 
network is doing is to approximately match to the varying Zo of the line 
at audio frequencies, and to equalize the propagation delay shown in Fig 
1 and Fig 2 in my link.


73, Jim K9YC


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[Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Pakulski-K9VON Russ
HI, I AM PLANNING ON INSTALLING THE VE7FMN HEAT SINK TO MY KX3. WILL THIS 
INVALIDATE MY KX3  S/N#4049 WARRANTY? 
RUSS K9VON
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Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread TheMG .
I've put a piece of paper under the bumper and re-installed L33 held
tightly down against the board (pushing the resistor down so it holds
it tightly).

No observed drift in frequency after a couple hours other than the
normal temperature-related drift (about 10Hz downward).

This does seem to confirm that the bumper conductivity was in fact the problem.

Looks like I will need a new rubber bumper. I'm not sure what happened
to this one to make it conductive, but it's definitely not something I
did as I did not use any cleaning chemicals when initially building
the K2 (not even alcohol).

I'm also considering just securing L33 in place with a dab of
electronics-grade silicone and leaving it at that. Although Elecraft
does not recommend it I don't see how it would be a problem if the
proper type of silicone is used that is non-corrosive, non-conductive,
designed specifically for electronics use. If it's good enough for use
in aircraft electronics... it ought to be fine for this. Of course, it
would make it slightly more difficult to remove L33 in the future if
for some reason it was ever necessary to remove it, but not
impossible. I'm not too worried about that.

73,
Mikael
VE8MT

On Tue, Apr 15, 2014 at 7:20 AM, Don Wilhelm w3...@embarqmail.com wrote:
 Mikael,

 If you can, please do a test.  See if you can loosen L33 from the rubber
 bumper just a little by raising the bumper.  then slide a strip cut from
 paper stock (like a business card) between the board and the bumper.
 See if the BFO still drifts.

 If it stops, then your assumption is correct and you should get a new rubber
 bumper.

 Good troubleshooting!

 73,
 Don W3FPR


 On 4/15/2014 2:15 AM, TheMG . wrote:

 Wow, you'll never believe what I just found out!

 There is absolutely nothing wrong at all with L33. It turns out it's
 the rubber bumper that is at fault!

 I found this out by pressing down on the stem of the bumper with the
 plastic tuning tool, instead of pressing on the inductor. Guess what?
 Frequency started to drift!!!

 On a hunch, I decided to get my multimeter and measure on the bottom
 of the rubber bumper. It's slightly conductive! Starts at about 3
 megohms and if I hold the multimeter probes in place the resistance
 slowly starts to drop down to 1 megohm and below. After a couple
 minutes holding the probes in place about 1/4 inch apart on the bottom
 of the bumper, the resistance got down to 500k!

 Since the solder pads for X3 BFO crystal are underneath the rubber
 bumper, it is effectively like putting a resistor in parallel with the
 crystal, which obviously has undesirable effects on the operation of
 the BFO oscillator.

 The slowly decreasing resistance as the meter probes are held in
 contact with the rubber is consistent with the fact that the BFO
 drifts over time.

 I suspected contaminants on the surface of the rubber, but after
 cleaning it with iso alcohol, there is no change. Something in the
 rubber is causing it to be conductive.

 I wonder if somewhere out there, there are hams with K2s experiencing
 BFO drift related to the same cause? If I got a conductive rubber
 bumper in my kit, it's highly likely someone else has also.

 Anyways, it's getting a little late right now. I'll communicate my
 findings to Elecraft tomorrow (in case they aren't already reading
 this).

 73,
 Mikael
 VE8MT

 On Sun, Apr 13, 2014 at 9:50 PM, Don Wilhelm w3...@embarqmail.com wrote:

 Get a replacement L33 and see if that takes care of it.  You might wan to
 request a replacement mounting resistor as well.

 73,
 Don W3FPR


 On 4/13/2014 9:23 PM, TheMG . wrote:

 Leads under L33 are flush cut as flat as possible and it is mounted on
 the rubber bumper with half the stem cut off exactly as per the
 instructions. The resistor was pushed down into the center to keep L33
 secure and to prevent the resistor body from being pressed on by the
 bottom cover.

 No luck on resoldering L33 or the crystals underneath it. However I
 did notice that when I pull up on the resistor so it isn't pressing
 down on L33 (the inductor is at this point completely loose and free
 to move around. I have the K2 upside down with the bottom cover
 removed and it has been running this way for several hours with
 absolutely no drift. BFO range is 4912.31 to 4917.85 and stays within
 0.01 of that as it warms up.


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Please help 

[Elecraft] Band Stacking Registers

2014-04-15 Thread Toby Pennington
Someone posted earlier about wanting band stacking registers in a new 
K4.  Band stacking registers are very nice,   but with the KPA 500 you 
can automatically switch from band to band right now with no problem.


Then,  with the M1 to M4 per band memory buttons you can select any of 
four different saved frequencies per band.   It takes two button presses 
to get to the saved freq.,  AFTER you have made your band selection 
using the amp.


Just press M-V then M1 , M2,  M3. or M4  on your chosen band and all 
your settings will pop up for that frequency.
This is really not too bad when you consider with band stacking 
registers you may have to press more than once to get where you want to 
go, you may even have to press three times on the band stacker of a 
particular band to get where need to be.


Another advantage using M-V is that with band stacking registers, your 
frequency setting will be left in a different spot more than likely so 
it will never be actually saved as far as the exact frequency is 
concerned. With M1 thru M4 your exact frequency will always be coming up 
when you  push the buttons.


So, hope this may help a few who are hooked on band stacking registers 
as I am.


Toby K4NH
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Re: [Elecraft] K2 BFO drift problem

2014-04-15 Thread Don Wilhelm
Just get a new rubber bumper.  Not only does that glue make a mess of 
things, but it has potential for changing the inductance.


73,
Don W3FPR
On 4/15/2014 5:35 PM, TheMG . wrote:

I've put a piece of paper under the bumper and re-installed L33 held
tightly down against the board (pushing the resistor down so it holds
it tightly).

No observed drift in frequency after a couple hours other than the
normal temperature-related drift (about 10Hz downward).

This does seem to confirm that the bumper conductivity was in fact the problem.

Looks like I will need a new rubber bumper. I'm not sure what happened
to this one to make it conductive, but it's definitely not something I
did as I did not use any cleaning chemicals when initially building
the K2 (not even alcohol).

I'm also considering just securing L33 in place with a dab of
electronics-grade silicone and leaving it at that. Although Elecraft
does not recommend it I don't see how it would be a problem if the
proper type of silicone is used that is non-corrosive, non-conductive,
designed specifically for electronics use. If it's good enough for use
in aircraft electronics... it ought to be fine for this. Of course, it
would make it slightly more difficult to remove L33 in the future if
for some reason it was ever necessary to remove it, but not
impossible. I'm not too worried about that.




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Re: [Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Don Wilhelm

Russ,

I don't have the final word, but I don't think it would void the warranty.
Unless of course, you do something foolish like defeat the 
overtemperature sensing and run it such as to destroy the finals even 
with the heat sink in place.


BTW - upper and lower case please, it is much easier to read.  We do not 
all have RTTY text trained eyes.


73,
Don W3FPR

On 4/15/2014 5:10 PM, Pakulski-K9VON Russ wrote:

HI, I AM PLANNING ON INSTALLING THE VE7FMN HEAT SINK TO MY KX3. WILL THIS 
INVALIDATE MY KX3  S/N#4049 WARRANTY?



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[Elecraft] K3 Archive search - gold plated contacts - K3 #1442 ?

2014-04-15 Thread Jim Miller
Searching archives - using poor search words I guess.  Haven't found it yet
and I know there has been considerable traffic on it.  I guess I don't know
how to search the archives or haven't gone back far enough.  When was the
traffic about the gold plated contacts? What is a good search word?  I think
they were between the front panel and the main board.

 

I will be taking the front panel off and reseating it as soon as I get a
chance.

 

I think I may be having the contact issue without the gold plated contacts.
I am getting random errors on power up mostly and sometimes 7 or 8 of them
at one power on.  They may or may not repeat and new ones appear.  Have
probably 10 different ones listed so far, sometimes just 2 or 3 and
sometimes a lot.  After repeated power cycles (or is it hertz?) it will
still come up clean and operate.  Sometimes hitting just ant or most any
other switch (mode change, sub, pre) will cause the receive to be
drastically reduced.  If I can leave the buttons alone, it mostly operates.
Being a technician in the past, I first suspected power being low.  Meter
shows 13.8 in the K3 etc. but can't see it until it comes up.  Scrubbed all
contacts and watch meters on the power buss and no detectable variations
during power on from normal.  No abnormal readings on the current meter on
the power supply.

 

Thanks, guys.  73, Jim KG0KP

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Re: [Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Eric Swartz - WA6HHQ, Elecraft
As long as you do not damage the radio inside and take responsibility for any 
scratches from the heatsink etc, the Warranty will still be honored.


73,

Eric
elecraft.com

On 4/15/2014 2:10 PM, Pakulski-K9VON Russ wrote:

HI, I AM PLANNING ON INSTALLING THE VE7FMN HEAT SINK TO MY KX3. WILL THIS 
INVALIDATE MY KX3  S/N#4049 WARRANTY?
RUSS K9VON



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Re: [Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Fred Meier
MR Schwartz.
Do you want me to bring one to SeaPac so you can see it in the flesh?
Cheers, Fred
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Re: [Elecraft] K3 Archive search - gold plated contacts - K3 #1442 ?

2014-04-15 Thread David Shoaf
Why not just contact Elecraft support?  They have the details.

Cheers,

David



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Re: [Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Eric Swartz - WA6HHQ, Elecraft

Hi Fred,

Lisa and crew will be at Seapac this year as I'll be at Hamcom in Texas the 
following weekend.


Do you have a picture you can send me?

One minor correction, my last name is spelled in the less common manner as 
Swartz.  No problem on the mis-spelling, there are thousands ahead of you who 
have made the same mistake over the years. :-)


73,

Eric
elecraft.com

On 4/15/2014 5:57 PM, Fred Meier wrote:

MR Schwartz.
Do you want me to bring one to SeaPac so you can see it in the flesh?
Cheers, Fred



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[Elecraft] K2 drift chat

2014-04-15 Thread Eddy
With all this chat about k2 drift, mine turned out to be a cold-solder joint in 
the L33 circuit!!! Now stable as can be for K2!!

By-the-way,
 for setting the 4mhz osc I tune into WWV at 10mhz using CW and with the
 spot switch on I can hear the K2 when it zero beats against WWV. It is 
kinda of a hit and miss process, I adjust C22 a tiny bit, run CAL PLL 
and remeasure, thus walking the osc in so to speak. It takes time but I 
am within 20hz now.

73

ed
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[Elecraft] Suggestions for a 2 meter amp?

2014-04-15 Thread Harry_Yingst
I installed the internal 2 meter module in my K3 so now I'm in the
market for a good Amplifier to bring it up to at least 100 watts.

The K3 puts out 10 watts so the amp needs to be 10 Watts input

Any Suggestions?

Thank you







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Re: [Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY

2014-04-15 Thread Fred Jensen

On 4/15/2014 6:07 PM, Eric Swartz - WA6HHQ, Elecraft wrote:

Hi Fred,

Lisa and crew will be at Seapac this year as I'll be at Hamcom in Texas
the following weekend.

Do you have a picture you can send me?

One minor correction, my last name is spelled in the less common manner
as Swartz.  No problem on the mis-spelling, there are thousands ahead
of you who have made the same mistake over the years. :-)


Not the Fred you replied to, but my name is actually Phrederick.  I 
cheated on my driver's license and used the F :-))  I need to check 
and see if I have you correct on the NCCRA/Cactus roster.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

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Re: [Elecraft] Fake FTDI chips

2014-04-15 Thread Jerome Sodus
Hello Don W3FPR,

I need to comment about reputable brands relative to
USB-to-serial-adapters.

Triplett-Keyspan is not reputable, in my opinion.
The story goes like this.
I have an AIM-4170 analyzer that needs a RS232 connection.
The AIM works when connected to a Dell desktop's RS232 port.
For portability, I wanted to use the AIM with my Dell laptop and bought a
Keyspan adapter.
Regrettably, much time went by before I could get back to the hobby and try
the Keyspan but I never suspected a big problem would be lurking.
Keyspan's USB-adapter, when plugged into the Dell laptop, would not work my
AIM-4170 analyzer.
So I tried plugging it into the desktop; still would not work.
But incredibly, their technical-support put the blame on my AIM.
By this time, it is past the warranty period.
I bought a Radio-Shack adapter for the laptop; AIM works fine.

To finish the story, I bought a HP-desktop.
The Keyspan won't work there.
For that HP, I also bought from HP a real RS232-card with two ports.
The AIM works fine with those ports.

So much for Keyspan's adapter and their tech-support.

BTW, my KX3 kit came today.

73 Jerry KM3K

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Re: [Elecraft] Suggestions for a 2 meter amp?

2014-04-15 Thread Michael Eberle
I use a Mirage B-310-G with my K144XV. It is rated at 3W in 100W out, 
but the power curve on Mirage's website goes up to 8W in with 100W+ 
out.  My K144XV only puts out about 7-8 watts so I have never had any 
problems with over driving it.


Mike
KI0HA


On 4/15/2014 8:26 PM, Harry_Yingst wrote:

I installed the internal 2 meter module in my K3 so now I'm in the
market for a good Amplifier to bring it up to at least 100 watts.

The K3 puts out 10 watts so the amp needs to be 10 Watts input

Any Suggestions?

Thank you







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[Elecraft] For Sale: Used PR-6

2014-04-15 Thread W0MU Mike Fatchett

Used 6m Pre-Amp.  Hardly used.

$125.00 includes Priority Mailing Con US.  Will consider shipping 
internationally.


Please contact me direct not through the list.

W0MU-Mike
w...@w0mu.com

--
Mike W0MU

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