[Elecraft] K2/100 7211 TX Power output meter stopped working

2014-01-03 Thread Mike Sanders
Good Morning, Yeah, not sure what happened but appears when in
high power mode over 10 watts power control does not work either.
It gives full output. I just replaced diodes D1 and D2 1N5711s but
the problem continues the same. Before I get any deeper into this does
anyone have any experience with this failure and any ideas? I sure
thought the diodes would fix this. I triple checked my work and the
orientation of the diodes on the board.  73, Mike K0AZ

 K0AZ
   Mike Sanders
EM37cd SW Missouri
 www.k0az.com







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Re: [Elecraft] PSK-D Feature request

2014-01-03 Thread Peter Eijlander (PA0PJE)

The problem is the terminology, John.
In this case FSK and PSK should have been read as ASCII and 
Morse code. The translation from ASCII to Varicode to PSK and 
vice versa as well as ASCII etc first to 5 bit Baudot and then to 
FSK is done by software in the radio itself, as opposed to software 
running on a computer and processing audio going to and from a radio.


The second missing link is that FSK means simply a shifting carrier on a 
given frequency with a given offset in the frequency domain.
FSK can be amplified with whatever class used, PSK however is a single 
frequency which' phase is reversed in time hence amplitude driven and 
must be amplified linearly, something not understood by some operators 
who produce broad sigs with PSK, because the output meter is driven far 
too high or the input of their TX is already clipping.


Just my two cents...
HNY to you all,
Peter


Op 2014-01-02 3:54 schreef John Bastin:

I'm interested in learning how you explain to your software that it should 
listen for PSK and decode it while it's transmitting FSK.

73,

John K8AJS
jbast...@me.com

On 01 Jan 2014, at 6:33 PM, Jim Miller j...@jtmiller.com wrote:


While reading the manual to setup PSK using Data-A I now read that PSK-D is
actually capable of being driven by FSK keying line already! Missed that
one.

Jim AB3CV (now RTFMing...)


On Wed, Jan 1, 2014 at 11:30 AM, Jim Miller j...@jtmiller.com wrote:


I'd like to see PSK-D be supported by the FSK keying line ala RTTY via
FSK-D.


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Re: [Elecraft] K2/100 7211 TX Power output meter stopped working

2014-01-03 Thread Mike Sanders
Sorry that should have been D16 and 17. I'm going to look at the
circuit again and again. 73

 K0AZ
   Mike Sanders
EM37cd SW Missouri
 www.k0az.com






-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Sanders
Sent: Friday, January 03, 2014 7:13 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K2/100 7211 TX Power output meter stopped working

Good Morning, Yeah, not sure what happened but appears when in
high power mode over 10 watts power control does not work either.
It gives full output. I just replaced diodes D1 and D2 1N5711s but
the problem continues the same. Before I get any deeper into this does
anyone have any experience with this failure and any ideas? I sure
thought the diodes would fix this. I triple checked my work and the
orientation of the diodes on the board.  73, Mike K0AZ

 K0AZ
   Mike Sanders
EM37cd SW Missouri
 www.k0az.com







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Re: [Elecraft] K2/100 7211 TX Power output meter stopped working

2014-01-03 Thread Bill Coleman
I had a failure of the EL5146C op amp. You might check it. In my case, mine 
shorted internally, which brought the +5 volt supply to zero, which made the K2 
think the KPA100 was not installed. But, yours might have opened or something.

I think D16  D17, as well as the EL5146C might be pretty good targets for 
static discharges from the antenna.

On Jan 3, 2014, at 8:21 AM, Mike Sanders k...@centurytel.net wrote:

 Sorry that should have been D16 and 17. I'm going to look at the
 circuit again and again. 73
 
 K0AZ
   Mike Sanders
 EM37cd SW Missouri
 www.k0az.com
 
 
 
 
 
 
 -Original Message-
 From: elecraft-boun...@mailman.qth.net
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Sanders
 Sent: Friday, January 03, 2014 7:13 AM
 To: Elecraft@mailman.qth.net
 Subject: [Elecraft] K2/100 7211 TX Power output meter stopped working
 
 Good Morning, Yeah, not sure what happened but appears when in
 high power mode over 10 watts power control does not work either.
 It gives full output. I just replaced diodes D1 and D2 1N5711s but
 the problem continues the same. Before I get any deeper into this does
 anyone have any experience with this failure and any ideas? I sure
 thought the diodes would fix this. I triple checked my work and the
 orientation of the diodes on the board.  73, Mike K0AZ
 
 K0AZ
   Mike Sanders
 EM37cd SW Missouri
 www.k0az.com
 
 
 
 
 
 
 
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Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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[Elecraft] KRX3 input protection

2014-01-03 Thread AD0ES
Hi all,

My KRX3 is on the truck and due tuesday.  Quick question:  I will be running 
the main receiver on a receive only antenna
fed via the KXV3A and the subrx via its bnc aux.  These antennas are quite 
close to the xmit antennas.  Should I use
any sort of attenuation and/or external TR switch on either of these receiver 
inputs?  I eventually will be running a KPA500
full power...

tia,
Steve AD0ES

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Re: [Elecraft] K2/100 7211 TX Power output meter stopped working

2014-01-03 Thread Don Wilhelm

Mike,

Check the power control 5 watts requested.  If you actually get more 
than 10 watts output then either the diodes (I understand you replaced 
them) or KPA100 U6 may be the cause - there are a few other 
possibilities too.


During a TUNE, you should have voltage into U6 pin 3, and approximately 
twice that voltage at U6 pin 7.
If no output at U6 pin 7, check U6 pin 8.  If it is not 5 volts, then 
you have a firmware problem.


73,
Don W3FPR

On 1/3/2014 8:21 AM, Mike Sanders wrote:

Sorry that should have been D16 and 17. I'm going to look at the
circuit again and again. 73

  K0AZ
Mike Sanders
EM37cd SW Missouri
  www.k0az.com






-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Sanders
Sent: Friday, January 03, 2014 7:13 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K2/100 7211 TX Power output meter stopped working

Good Morning, Yeah, not sure what happened but appears when in
high power mode over 10 watts power control does not work either.
It gives full output. I just replaced diodes D1 and D2 1N5711s but
the problem continues the same. Before I get any deeper into this does
anyone have any experience with this failure and any ideas? I sure
thought the diodes would fix this. I triple checked my work and the
orientation of the diodes on the board.  73, Mike K0AZ




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[Elecraft] K2 and other items for sale

2014-01-03 Thread Franklin Skinner
For Sale – Elecraft K2 (KDSP2, KNB2, K6XX CW Indicator, KAF2, KBT2 w/o battery, 
KF02, KSB2, K160RX, K2 dimple tuning knob), and KAT2. SN 04242. $750.00

For Sale – Elecraft KAT2 Tuner New in  bag $100.00

For Sale -  Elecraft KAT2 Tuner built $150.00
For Sale – Elecraft EC2 Blank Project Enclosure $25.00

Please contact off list. 

Frank Skinner
K0JQZ
f_skin...@yahoo.com

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Re: [Elecraft] K3 audio line out level with blue tooth hearing aid amp

2014-01-03 Thread Robert G Strickland

Thanks for the comments.

Using the LINE OUT at a fixed level - whatever that might be - does not 
allow volume control from the front panel AF/RF knobs. With this setup 
the only volume control is on the blue tooth transmitter which does not 
allow fine and immediate control as the operating environment changes.


With LINE OUT set to PHONES, the output level is controlled from the 
front panel which is desirable. However, as stated in my original post, 
there is no AF/RF setting that delivers enough signal volume, 
regardless of the volume setting on the blue tooth transmitter. However, 
while the signal level is way down, the radio control beeps are at their 
normal volume suggesting that some adjustment/switch is incorrect. What 
might this adjustment/switch be?


The other issue is that sound out of the front panel audio jack, while 
loud and controllable, is very distorted as heard via the blue tooth 
transmitter. This may be because of an impedance mismatch; I don't know 
right off what the input impedance of the blue tooth unit is. Another 
reason may be a very limited dynamic range in the blue tooth unit.


The blue tooth transmitter does work as advertised when used as 
intended: enhancing speech levels in a natural environment. This agan 
suggests that impedance matching and/or dynamic range may be the 
issue(s), at least when using the K3's front panel audio jack.


...robert

On 1/1/2014 20:45, Robert G Strickland wrote:

Happy New Year to all.

I just got new ReSound hearing aids w/ a blue tooth amp pickup. I
connected the blue tooth transmitter to the front panel PHONES and got
plenty of sound but very distorted at levels necessary for operating. I
then connected it to the LINE OUT in the back of the K3 and switched
that output level from fixed to PHONES. The audio level for signals is
almost too low to hear at any level of AF/RF gain, but the beep level
for radio control is very loud.

How do I get the signal output from the LINE OUT jack up to a useable
level? Any thoughts as to why the audio from the front panel PHONES is
so distorted? Is this a radio issue or something to do with the blue
tooth transmitter and the hearing aids? Thanks for any and all comments.

...robert


--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.net.usa
Syracuse, New York, USA
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Re: [Elecraft] KRX3 input protection

2014-01-03 Thread Arie Kleingeld PA3A

Steve,

the subRX of the K3 has its protection (an rf triggered relay if the 
power coming into the rx is too high).


I've used the K3-KPA500 on a beam and I had a diversity vertical 
connected to the subrx quite next to it. No problem at all.
It all depends on the coupling of the antennas. Try and see how you go 
at your QTH; the subRX is protected.


73
Arie PA3A

AD0ES schreef op 3-1-2014 15:23:

Hi all,

My KRX3 is on the truck and due tuesday.  Quick question:  I will be running 
the main receiver on a receive only antenna
fed via the KXV3A and the subrx via its bnc aux.  These antennas are quite 
close to the xmit antennas.  Should I use
any sort of attenuation and/or external TR switch on either of these receiver 
inputs?  I eventually will be running a KPA500
full power...

tia,
Steve AD0ES


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Re: [Elecraft] KRX3 input protection

2014-01-03 Thread Jim Bennett
Steve - 

I have a similar setup as Arie - an 80 meter Inverted L at 40 feet for my 
transmitting antenna and a Hustler 5BTV vertical ground mounted about 10 feet 
from being directly under the vertical. Works fine. If I crank up my KPA500, 
the relays in the K3 quickly isolate the subrx from too much RF.

Jim / W6JHB


On Jan 3, 2014, at 8:12 AM, Arie Kleingeld PA3A wrote:

 Steve,
 
 the subRX of the K3 has its protection (an rf triggered relay if the power 
 coming into the rx is too high).
 
 I've used the K3-KPA500 on a beam and I had a diversity vertical connected to 
 the subrx quite next to it. No problem at all.
 It all depends on the coupling of the antennas. Try and see how you go at 
 your QTH; the subRX is protected.
 
 73
 Arie PA3A
 
 AD0ES schreef op 3-1-2014 15:23:
 Hi all,
 
 My KRX3 is on the truck and due tuesday.  Quick question:  I will be running 
 the main receiver on a receive only antenna
 fed via the KXV3A and the subrx via its bnc aux.  These antennas are quite 
 close to the xmit antennas.  Should I use
 any sort of attenuation and/or external TR switch on either of these 
 receiver inputs?  I eventually will be running a KPA500
 full power...
 
 tia,
 Steve AD0ES
 
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Re: [Elecraft] KRX3 input protection

2014-01-03 Thread Don Wilhelm

Jim and Steve,

While the COR will do its job, I recommend that you not abuse it. If you 
hear the COR operating during transmit, it would be wise to provide some 
external switching (relay) to remove the RX antenna while transmitting 
or insert an attenuator.


Of course, the best solution is to locate the RX antenna away from the 
TX antenna, but that is not always a practical solution.


73,
Don W3FPR

On 1/3/2014 11:38 AM, Jim Bennett wrote:

Steve -

I have a similar setup as Arie - an 80 meter Inverted L at 40 feet for my 
transmitting antenna and a Hustler 5BTV vertical ground mounted about 10 feet 
from being directly under the vertical. Works fine. If I crank up my KPA500, 
the relays in the K3 quickly isolate the subrx from too much RF.

Jim / W6JHB


On Jan 3, 2014, at 8:12 AM, Arie Kleingeld PA3A wrote:


Steve,

the subRX of the K3 has its protection (an rf triggered relay if the power 
coming into the rx is too high).

I've used the K3-KPA500 on a beam and I had a diversity vertical connected to 
the subrx quite next to it. No problem at all.
It all depends on the coupling of the antennas. Try and see how you go at your 
QTH; the subRX is protected.




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Re: [Elecraft] K3 audio line out level with blue tooth hearing aid amp

2014-01-03 Thread Don Wilhelm

Robert,

What happens if you plug the Bluetooth transmitter into the speaker jack 
on the rear panel?  It is worth a try.


73,
Don W3FPR

On 1/3/2014 10:42 AM, Robert G Strickland wrote:

Thanks for the comments.

Using the LINE OUT at a fixed level - whatever that might be - does 
not allow volume control from the front panel AF/RF knobs. With this 
setup the only volume control is on the blue tooth transmitter which 
does not allow fine and immediate control as the operating environment 
changes.


With LINE OUT set to PHONES, the output level is controlled from the 
front panel which is desirable. However, as stated in my original 
post, there is no AF/RF setting that delivers enough signal volume, 
regardless of the volume setting on the blue tooth transmitter. 
However, while the signal level is way down, the radio control beeps 
are at their normal volume suggesting that some adjustment/switch is 
incorrect. What might this adjustment/switch be?


The other issue is that sound out of the front panel audio jack, while 
loud and controllable, is very distorted as heard via the blue tooth 
transmitter. This may be because of an impedance mismatch; I don't 
know right off what the input impedance of the blue tooth unit is. 
Another reason may be a very limited dynamic range in the blue tooth 
unit.


The blue tooth transmitter does work as advertised when used as 
intended: enhancing speech levels in a natural environment. This agan 
suggests that impedance matching and/or dynamic range may be the 
issue(s), at least when using the K3's front panel audio jack.


...robert



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Re: [Elecraft] P3 svga hangs

2014-01-03 Thread George Thornton
I have the following setup:

K3 (with two receivers)

P3 with SVGA

Steppir 3 element Yagi 

External monitor attached to P3

I am having problems with the P3 SVGA being sluggish and periodically locking 
up.  Sometimes the external monitor locks up, sometimes both.  I can usually 
get it running by turning the P3 off and on.  This happens fairly frequently 
and can be quite annoying.  The impression is the P3 SVGA is overloaded and 
can't keep up.

The software is all up to date.  

Everything else seems to be working just fine.  

Any help would be appreciated.


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Re: [Elecraft] P3 svga hangs

2014-01-03 Thread Mike Flowers
I have this happen occasionally, but only when I am transmitting with the
KPA500.   In RX and barefoot, it's solid.   I'm going to try some additional
snap-on ferrite chokes on the lines, etc. 

- 73 de Mike, K6MKF, W6NAG, Secretary - NCDXC, IDXG, RRC #933,
K3-P3-KPA500-KAT500 Addict, Maui


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of George Thornton
Sent: Friday, January 03, 2014 8:57 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 svga hangs

I have the following setup:

K3 (with two receivers)

P3 with SVGA

Steppir 3 element Yagi 

External monitor attached to P3

I am having problems with the P3 SVGA being sluggish and periodically
locking up.  Sometimes the external monitor locks up, sometimes both.  I can
usually get it running by turning the P3 off and on.  This happens fairly
frequently and can be quite annoying.  The impression is the P3 SVGA is
overloaded and can't keep up.

The software is all up to date.  

Everything else seems to be working just fine.  

Any help would be appreciated.


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Re: [Elecraft] KRX3 input protection

2014-01-03 Thread Charlie T, K3ICH
I saw a suggestion somewhere for using a small grain-of-wheat bulb across 
the 2nd antenna's lead as you gradually increase transmit power.  If I 
remember correctly, the bulb I used was a 5 V @ 50 mA lamp, typical of those 
used as LCD screen illuminators.


I tried that with a 600 ' Beverage that is at least 75 feet from any 
transmit antenna and was very surprised to see the bulb glowing brightly on 
a couple bands with only 50 watts into the LPDA up at 55'.   The Beverage is 
fed with a 9:1 transformer and is about 8 feet off the ground, running away 
from any active antennas.


Try it, it's quite an eye opener.

73, Charlie k3ICH


- Original Message - 
From: Arie Kleingeld PA3A p...@xs4all.nl

To: elecraft@mailman.qth.net
Sent: Friday, January 03, 2014 11:12 AM
Subject: Re: [Elecraft] KRX3 input protection



Steve,

the subRX of the K3 has its protection (an rf triggered relay if the power 
coming into the rx is too high).


I've used the K3-KPA500 on a beam and I had a diversity vertical connected 
to the subrx quite next to it. No problem at all.
It all depends on the coupling of the antennas. Try and see how you go at 
your QTH; the subRX is protected.


73
Arie PA3A

AD0ES schreef op 3-1-2014 15:23:

Hi all,

My KRX3 is on the truck and due tuesday.  Quick question:  I will be 
running the main receiver on a receive only antenna
fed via the KXV3A and the subrx via its bnc aux.  These antennas are 
quite close to the xmit antennas.  Should I use
any sort of attenuation and/or external TR switch on either of these 
receiver inputs?  I eventually will be running a KPA500

full power...

tia,
Steve AD0ES


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[Elecraft] P3 SVGA USB Hub usage?

2014-01-03 Thread Sam Morgan
I seem to remember it is not recommended to attempt to use a usb hub in 
the P3's SVGA USB port, can't find it now that I am looking for it. :-/


my question:
would this hub with on/off power switches for each usb port work?
http://www.newegg.com/Product/Product.aspx?Item=0J2-000N-9

it says:
Built-in Power On/Off switches and LED power On/Off indicators for each 
port for better performance and power management.


sure would save wear and tare on the P3's usb port when plugging in and 
out a memory stick and then back to the keyboard.


tia
--
GB  73
K5OAI
Sam Morgan
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Re: [Elecraft] P3 SVGA USB Hub usage?

2014-01-03 Thread Paul Saffren N6HZ
Hi Sam, 

The USB port on the P3/SVGA does not support hubs.  

73, 

Paul




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[Elecraft] Audio feedback

2014-01-03 Thread Edward R Cole

Dick,

You did not indicate if the feedback is in the internal K3 speaker or 
an external speaker.  I have no problem with my K3 using an ext. spkr 
(but that is because it is unamplified 1950's era National 8-inch speaker).


I do get audio feedback with my KX3 because I am using cheap computer 
speakers that are prone to RF rectification in the amplifier.  I have 
to run the speaker volume down if I operate 300w on HF or 6m.  That 
requires running the KX3 volume too high for my tastes (tends to 
become distorted at the high end).  I like running a combination 
volume settings where the volume in the KX3 is set about 8-12.


So back to my point that cheap amplified speakers can be subject to 
stray RF in the shack.  My 300w amp is still open-air and not 
enclosed in a cabinet (which would also help reduce feedback in my 
wife's FM radio in her hobby room next to the shack).  I bought her 
the West Mountain speaker for her computer and it is totally free of 
RF pickup; I'll be getting a pair for my KX3 sometime this 
winter.  Also buying an enclosure for the 300w amp including 
bypassing of the dc and control lines.


But first checking monitor setting is a good idea.  I've had that 
happen a time or two going between CW and SSB.


73, Ed - KL7UW


From: Dick Brown richardjoa...@comcast.net
To: elecraft@mailman.qth.net elecraft@mailman.qth.net
Subject: [Elecraft] Audio feedback
Message-ID: dc821876-fdd9-461c-9171-03a488492...@comcast.net
Content-Type: text/plain;   charset=us-ascii

I am getting audio feedback via the speaker when I transmit on 
K3.  What's a way to solve this.

KT6X


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

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Re: [Elecraft] P3 svga hangs

2014-01-03 Thread Dave Hachadorian
Mine used to hang occasionally when I was running 1920 x 1080 
resolution.  It hasn't happened since I switched to 1440 x 900.


Dave Hachadorian, K6LL
Yuma, AZ




-Original Message- 
From: George Thornton

Sent: Friday, January 3, 2014 9:57 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 svga hangs

I have the following setup:

K3 (with two receivers)

P3 with SVGA

Steppir 3 element Yagi

External monitor attached to P3

I am having problems with the P3 SVGA being sluggish and 
periodically locking up.  Sometimes the external monitor locks 
up, sometimes both.  I can usually get it running by turning the 
P3 off and on.  This happens fairly frequently and can be quite 
annoying.  The impression is the P3 SVGA is overloaded and can't 
keep up.


The software is all up to date.

Everything else seems to be working just fine.

Any help would be appreciated.


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Re: [Elecraft] K3 audio line out level with blue tooth hearing aid amp

2014-01-03 Thread Robert G Strickland

Happy New Year, Don...

Using audio out from the rear speaker jack is the same as the front 
headphone jack: low audio which becomes distorted as the gain from 
either the radio or the BT transmitter is increased. I'm thinking that 
this might be a limitation in the hearing aids. I haven't checked with 
the hearing aid people about increasing the gain of the hearing aids in 
the BT mode. That's worth a try. I'll report back.


...robert

On 1/3/2014 16:55, Don Wilhelm wrote:

Robert,

What happens if you plug the Bluetooth transmitter into the speaker jack
on the rear panel?  It is worth a try.

73,
Don W3FPR

On 1/3/2014 10:42 AM, Robert G Strickland wrote:

Thanks for the comments.

Using the LINE OUT at a fixed level - whatever that might be - does
not allow volume control from the front panel AF/RF knobs. With this
setup the only volume control is on the blue tooth transmitter which
does not allow fine and immediate control as the operating environment
changes.

With LINE OUT set to PHONES, the output level is controlled from the
front panel which is desirable. However, as stated in my original
post, there is no AF/RF setting that delivers enough signal volume,
regardless of the volume setting on the blue tooth transmitter.
However, while the signal level is way down, the radio control beeps
are at their normal volume suggesting that some adjustment/switch is
incorrect. What might this adjustment/switch be?

The other issue is that sound out of the front panel audio jack, while
loud and controllable, is very distorted as heard via the blue tooth
transmitter. This may be because of an impedance mismatch; I don't
know right off what the input impedance of the blue tooth unit is.
Another reason may be a very limited dynamic range in the blue tooth
unit.

The blue tooth transmitter does work as advertised when used as
intended: enhancing speech levels in a natural environment. This agan
suggests that impedance matching and/or dynamic range may be the
issue(s), at least when using the K3's front panel audio jack.

...robert



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--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.net.usa
Syracuse, New York, USA
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[Elecraft] Shipping. K3

2014-01-03 Thread Edward R Cole
I've not had to ship anything worth $4,000 so have not encountered 
any packing issues with USPS, UPS, or Fedex.


But I would like to say a word about those Pelican Cases.  I first 
encountered them in the workplace 15 years ago when we had a portable 
VHF repeater built-into one of the smaller size cases.  The foam 
padding makes for a very secure shipping package.


I liked the idea so much I built my 10-GHz portable station into 
one.  I had room for a few tools, horn antenna, and some spare parts 
and even a small sealed acid battery.  Originally, I could carry it 
on airplanes for trips.  Post 911, TSA screening made that dubious, 
so one year I shipped the pelican case by Fedex using no extra 
external packing.  I did add a hardened brass combo lock (which was 
fine for Fedex; I did open the case so the Fedex clerk could see what 
is inside).

Note that airlines do not guarantee electronic items in checked luggage.

Everything survived fine.  My KX3 will be riding in this case in 
place of the FT-817 I used to own.


I got it back because this was not shipping for mfr repairs.

I informed the hotel and they were happy to hold it in their baggage 
room a few days until my arrival.  Fedex just delivered to the 
hotel.  This did cost shipping but that is the reality of flying these days.


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

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Re: [Elecraft] K3 audio line out level with blue tooth hearing aid amp

2014-01-03 Thread K7JLTextra
I got a boost of 15dB on my hearing aids and it works great with the rear K3 
connector 

John Hendricks K7JLT

On Jan 3, 2014, at 10:52, Robert G Strickland rc...@verizon.net wrote:

 Happy New Year, Don...
 
 Using audio out from the rear speaker jack is the same as the front headphone 
 jack: low audio which becomes distorted as the gain from either the radio or 
 the BT transmitter is increased. I'm thinking that this might be a limitation 
 in the hearing aids. I haven't checked with the hearing aid people about 
 increasing the gain of the hearing aids in the BT mode. That's worth a try. 
 I'll report back.
 
 ...robert
 
 On 1/3/2014 16:55, Don Wilhelm wrote:
 Robert,
 
 What happens if you plug the Bluetooth transmitter into the speaker jack
 on the rear panel?  It is worth a try.
 
 73,
 Don W3FPR
 
 On 1/3/2014 10:42 AM, Robert G Strickland wrote:
 Thanks for the comments.
 
 Using the LINE OUT at a fixed level - whatever that might be - does
 not allow volume control from the front panel AF/RF knobs. With this
 setup the only volume control is on the blue tooth transmitter which
 does not allow fine and immediate control as the operating environment
 changes.
 
 With LINE OUT set to PHONES, the output level is controlled from the
 front panel which is desirable. However, as stated in my original
 post, there is no AF/RF setting that delivers enough signal volume,
 regardless of the volume setting on the blue tooth transmitter.
 However, while the signal level is way down, the radio control beeps
 are at their normal volume suggesting that some adjustment/switch is
 incorrect. What might this adjustment/switch be?
 
 The other issue is that sound out of the front panel audio jack, while
 loud and controllable, is very distorted as heard via the blue tooth
 transmitter. This may be because of an impedance mismatch; I don't
 know right off what the input impedance of the blue tooth unit is.
 Another reason may be a very limited dynamic range in the blue tooth
 unit.
 
 The blue tooth transmitter does work as advertised when used as
 intended: enhancing speech levels in a natural environment. This agan
 suggests that impedance matching and/or dynamic range may be the
 issue(s), at least when using the K3's front panel audio jack.
 
 ...robert
 
 
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 -- 
 Robert G Strickland, PhD ABPH - KE2WY
 rc...@verizon.net.usa
 Syracuse, New York, USA
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[Elecraft] K2 and other items for sale

2014-01-03 Thread Franklin Skinner
For Sale - Elecraft K2 (KDSP2, KNB2, K6XX CW Indicator, KAF2, KBT2 w/o battery, 
KF02, KSB2, K160RX, K2 dimple tuning knob), and KAT2. SN 04242. $750.00

For Sale -  Elecraft KAT2 Tuner built $150.00



SOLD - Elecraft KAT2 Tuner New in  bag $100.00

SOLD - Elecraft EC2 Blank Project Enclosure $25

72
Frank Skinner
K0JQZ 
f_skin...@yahoo.com
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[Elecraft] (no subject)

2014-01-03 Thread Ross Johnson
Hi everyone

I am thinking of buying a KPA500 and maybe a  tuner.Main reason is that it 
covers 50 MHz.

As it is not cheap to import ( dollar exchange rate, freight, sales tax here 
etc) I 
am interested in what others have found with the amps performance on 50 Mhz.


73  Ross  ZL3ADT


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[Elecraft] Build, Rescue, or Service your Elecraft?

2014-01-03 Thread Alan D. Wilcox

Hello,

Have you always wanted an Elecraft? A KX1, K1, K2, K3, whatever?
I build and service them all!

See what my clients have said about my construction and
service work at  http://www.eham.net/reviews/detail/6768

In addition to tuning up your rig, I can also rescue a building
project you might have started some time ago.

Cheers,
Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-478-0736
Williamsport, PA 17701

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Re: [Elecraft] Shipping K3 in containers you want back?

2014-01-03 Thread Don Wilhelm

Jim,

I do not know the practices used at Watsonville, but I can tell you mine.

I do much of the repair work on legacy Elecraft gear (K2, K1, KX1, XV 
series and other thru-hole kits).  I always attempt to return the gear 
in the same carton it was shipped in.  Exceptions will be when the 
original packing is no longer serviceable or it arrived in a UPS 
Priority Mail box and I am asked to return it via UPS (the Priority Mail 
boxes are only for Priority Mail).  Common sense prevails at my work 
station.  The original carton and the paperwork stay together with the 
rig while it is being serviced - including pelican cases or other 
special protective cases.


The decision of which box to pack it in comes only at the time of 
packing, and again, everything is together during that process.


So if you ship me something for repair in some special packaging, you 
will get it back in that same packaging if at all possible.


I assume similar practices are in place at other Elecraft repair depots, 
but I cannot say for certain because the subject has not come up before, 
and I have not asked the others for their procedures.


73,
Don W3FPR

On 1/2/2014 3:39 PM, Jim Miller wrote:

I have sent items back in the manufacturers case only to have them returned
to me after repair or whatever in a different carton altogether (NOT
necessarily as sturdy or well padded as the original I had used).  What done
you do to get them to return the Pelican case instead of a cardboard box?  I
have purchased a surplus military case that was used for night vision
optical equipment (heavy metal with twist locks, handle) and is really nice
size for the K3 and foam (nothing extra) for transport but would be
skeptical of sending it in because of previous experiences.

What do you think?

73, Jim KG0KP




Subject: Re: [Elecraft] Shipping. K3

On 12/31/2013 10:20 AM, John's email wrote:


I sent my K3 back to the factory a couple of weeks ago. When I took it
to the UPS shipper here, he had to call UPS  for special instructions
since the declared valued was so high. I had it packed in the box
Elecraft sent it back to me the last time I sent it in.
UPS made me take it home and double box it.



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Re: [Elecraft] JT65HF for the KX3

2014-01-03 Thread David Shoaf
I'd suggest you contact Elecraft support for some pointers.  For a more
complete overview and operating processes, check out Fred Cady's book. 
Google KE7X and you'll find it.  Lastly, Google  KX3 jt65-hf
https://www.google.com/search?q=kx3+jt65-hfie=utf-8oe=utf-8aq=trls=org.mozilla:en-US:officialclient=firefox-achannel=fflb
  
for even more folks asking similar questions.

Cheers,

David



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View this message in context: 
http://elecraft.365791.n2.nabble.com/JT65HF-for-the-KX3-tp7582476p7582503.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] P3 svga hangs

2014-01-03 Thread Larry Burke

Hi, George. I reported a similar problem here on the reflector in early
December:

-
I am using a P3 with the SVGA option. It is connected to a K3. I find that
frequently after transmitting -- particularly calling a DX station in a
split-frequency pileup -- the P3 display comes back sluggish or almost
frozen for up to 20 seconds or so. Then it returns to providing real-time
information. It's almost like the P3 is suffering from data overload,
finally processes it, and gets back to normal. 

This is particularly annoying as one cannot spot where the DX is listening
in said pileup because the screen is essentially frozen and does not display
stations real-time until it unfreezes. This happens regardless of mode
(CW, SSB or RTTY). In RTTY this freeze time also locks up the USB
keyboard. 

The problem does not appear to be RFI related, as I get it regardless of the
power output level.
-

This may or may not be your situation. It only seems to occur in fixed-tune
mode. Elecraft (Howard and Paul) responded that they were able to duplicate
the problem, but I have never heard a resolution other than to use tracking
mode instead. As you say, this is very annoying and makes operating RTTY a
chore. I've since started using a different rig, in part due to this issue. 


Larry K5RK


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of George Thornton
Sent: Friday, January 03, 2014 10:57 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 svga hangs

I have the following setup:

K3 (with two receivers)

P3 with SVGA

Steppir 3 element Yagi 

External monitor attached to P3

I am having problems with the P3 SVGA being sluggish and periodically
locking up.  Sometimes the external monitor locks up, sometimes both.  I can
usually get it running by turning the P3 off and on.  This happens fairly
frequently and can be quite annoying.  The impression is the P3 SVGA is
overloaded and can't keep up.

The software is all up to date.  

Everything else seems to be working just fine.  

Any help would be appreciated.


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[Elecraft] Experimental firmware for those who *do* want to listen to the AM band on the KX3...

2014-01-03 Thread Wayne Burdick
Hi all,

The KX3 is primarily an HF-6 meter radio. But it does have useful sensitivity 
in the 500-1700 kHz AM broadcast band (or BCB for short).

I'm looking for a few testers for a new firmware release (rev 1.84) that can 
improve AM-band sensitivity by as much as 10 to 20 dB for stations below 1300 
kHz. This only applies if you have a KXAT3 ATU installed; the new firmware 
changes the way the ATU handles this range. The actual sensitivity improvement 
varies greatly depending on what kind of antenna is used.

Operating Details:

In the ATU MD menu entry, you can now tap '1' (PRE) to select one of two 
optimizations for the AM broadcast band:  BCB NOR or BCB=160. BCB NOR is the 
default setting: below 1300 kHz, the KXAT3's L-network is configured as a 
filter to reject harmonic images. BCB=160 uses the normal 160-meter L-network 
settings below 1300 kHz (i.e., the settings you obtained when you tuned up the 
ATU on 160 meters).

There's a tradeoff here. BCB NOR will provide much better rejection of BCB 
station harmonic images--as much as 50 dB at the low end of the band--but it 
also attenuates some signals significantly. BCB=160 doesn't reject harmonics as 
well, but it will bring signal strength in many cases.

Theory:

We made two design choices in the KX3 that affect AM broadcast band reception.

1. Like all Elecraft transceivers, the KX3 uses special low-resistance RF 
diodes called PIN diodes for transmit/receive switching. These diodes perform 
very well on 160 meters and up, but fall off in linearity toward low end of the 
AM broadcast band. For this reason, the KX3's T/R switch is designed to have an 
inherent high-pass response. By the time you get to 500 kHz, signals are 
attenuated by nominally 30 dB. This does a very good job of protecting the PIN 
diodes.

2. Being primarily a ham-band transceiver, the KX3 doesn't have low-pass 
(half-octave) filters for frequencies below 160 meters. The KX3 is also a 
baseband SDR (software-defined radio) architecture, so tuning the VFO well 
below the low-pass filter cutoff can result in harmonic image responses if 
strong low-frequency signals are present. (These have no effect when listening 
above about 1.5 kHz.)

The KXAT3 ATU module can help with the latter issue by acting as a low-pass 
filter, assuming you have the BCB NOR option in effect. As you tune the VFO 
down through the AM broadcast band, the L-network in the ATU is automatically 
adjusted to values of L and C that provide this filtering. There are also extra 
capacitors in the L-network that are only used when the radio is tuned below 
1300 kHz. However, this can also attenuate signals as mentioned above.

If BCB=160 is selected, the ATU will not be configured as a low-pass filter. It 
simply uses the 160-meter settings. 

73,
Wayne
N6KR

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Re: [Elecraft] Shipping K3 in containers you want back?

2014-01-03 Thread Jim Miller
I am sorry.  

I didn't specify that this was not Elecraft who was involved.  I was asking
a generic question about experiences vs. what I have had in two cases.  One
was not an issue but I consider it just plain lucky that the other arrived
back undamaged.  Thanks for all the comments.  Again, Elecraft was not
involved. 

73, Jim

-Original Message-
From: Don Wilhelm [mailto:w3...@embarqmail.com] 
Sent: Friday, January 03, 2014 5:18 PM
To: Jim Miller; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Shipping K3 in containers you want back?

Jim,

I do not know the practices used at Watsonville, but I can tell you mine.

I do much of the repair work on legacy Elecraft gear (K2, K1, KX1, XV series
and other thru-hole kits).  I always attempt to return the gear in the same
carton it was shipped in.  Exceptions will be when the original packing is
no longer serviceable or it arrived in a UPS Priority Mail box and I am
asked to return it via UPS (the Priority Mail boxes are only for Priority
Mail).  Common sense prevails at my work station.  The original carton and
the paperwork stay together with the rig while it is being serviced -
including pelican cases or other special protective cases.

The decision of which box to pack it in comes only at the time of packing,
and again, everything is together during that process.

So if you ship me something for repair in some special packaging, you will
get it back in that same packaging if at all possible.

I assume similar practices are in place at other Elecraft repair depots, but
I cannot say for certain because the subject has not come up before, and I
have not asked the others for their procedures.

73,
Don W3FPR

On 1/2/2014 3:39 PM, Jim Miller wrote:
 I have sent items back in the manufacturers case only to have them 
 returned to me after repair or whatever in a different carton 
 altogether (NOT necessarily as sturdy or well padded as the original I 
 had used).  What done you do to get them to return the Pelican case 
 instead of a cardboard box?  I have purchased a surplus military case 
 that was used for night vision optical equipment (heavy metal with 
 twist locks, handle) and is really nice size for the K3 and foam 
 (nothing extra) for transport but would be skeptical of sending it in
because of previous experiences.

 What do you think?

 73, Jim KG0KP




 Subject: Re: [Elecraft] Shipping. K3

 On 12/31/2013 10:20 AM, John's email wrote:

 I sent my K3 back to the factory a couple of weeks ago. When I took 
 it to the UPS shipper here, he had to call UPS  for special 
 instructions since the declared valued was so high. I had it packed 
 in the box Elecraft sent it back to me the last time I sent it in.
 UPS made me take it home and double box it.


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 list: http://www.qsl.net/donate.html




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[Elecraft] OT: Shipping experiences

2014-01-03 Thread Ken G Kopp
I do the packing and shipping of Rose's dust covers and
carrying cases.  The total is nearing 2K packages, and
with only a couple of exceptions -all-  have gone via
USPS Priority Mail and usually reach their destinations
in two to three days.  Priority Mail now provides tracking
numbers, BTW.

The only one to go astray was due to me typo-ing a
digit wrong in a ZIP code.  The auto sorting routine had
it shuttling between Los Angeles and Seattle for almost
a month!

Rose has a surprising number non-US customers and
ships all over the world ... even Nepal.  The record was
a carrying case that went from here in Montana to Turkey
in five days.  Amazing!   Non-US packages go via USPS
Air Mail ... customs forms are a snap.

USPS Priority Mail is slightly cheaper than UPS ground
and is certainly faster, and any of the faster versions of
UPS are -really- expensive.

FedEx seems to vary widely, depending on the area.
We've -never- had a satisfactory FedEx delivery, and
won't use them under any circumstances.

Then, there are the five customers that have stiffed her.
Two are in the UK, two from the Visalia DX Convention
and one US attorney. (;-(

73!

Ken - K0PP
elecraftcov...@gmail.com
http://tinyurl.com/7lm3m5
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Re: [Elecraft] (no subject)

2014-01-03 Thread Jim Brown

On 1/3/2014 2:46 PM, Ross Johnson wrote:

I am interested in what others have found with the amps performance on 50 Mhz.


Mine works VERY well -- 500W out with about 28w drive, and it can run 
that way for keydown modes like FSK441, JT65, and RTTY.  Runs nicely on 
120VAC or 240VAC, simple configuration at the mains socket on the back 
of the unit. It's been in service for about 3 years. Lots of contesting, 
always run with all the lights lit. :)


73, Jim K9YC



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Re: [Elecraft] OT: Shipping experiences

2014-01-03 Thread Rick Dettinger
Sounds like Kingston Trio lyrics.

73,
Rick Dettinger  K7MW






 
 The only one to go astray was due to me typo-ing a
 digit wrong in a ZIP code.  The auto sorting routine had
 it shuttling between Los Angeles and Seattle for almost
 a month!
 
 73!
 
 Ken - K0PP

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