Re: [Elecraft] Info - PR781 cable

[Tighe Kuykendall]

CC1-XLR-K.  The 8-pin version.  I'm using one right now with my PR781.

Tighe
NK4I

On 3/15/2013 2:08 PM, Fred Smith wrote:

I can't recall the number but it's the one with the red color coded ring on
it if that helps.

73,
Fred/N0AZZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ricardo - PY2PT
Sent: Friday, March 15, 2013 12:14 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Info - PR781 cable

Dear guys,


Please, do you know what is the correct cable to use this mic with K3?
I think that is the CC1 - XLR - K. Is it correct?


Best Regards

--
Ricardo Rodrigues - PY2PT / 3D2PT
py2pt.bra...@gmail.com
http://www.py2pt.com
@ricrodrigues
TO2FH (Mayotte Island - 2011) team member 8R1PY team member (2012)
T30PY/T30SIX team member (2012) http://www.mdxc.org/t30py
http://www.facebook.com/t30py @t30py
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Checked by AVG - www.avg.com
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Re: [Elecraft] computer - P3 - K3 communications blues

[Tom H Childers]

Eric,

You should be able to run one and only one additional application to
the P3.  Once you have one application connected to the P3 serial
port, that application blocks any other applications from using the
serial port the K3 the P3 are using.  So if you are trying to use the
same serial port for more than one software application it will not
use the P3 port.  It will give you a port in use error message.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

On Fri, 15 Mar 2013 17:58:27 -0700, eric manning
 wrote:

>I have a Windows XP box connected to my K3 using a USB port on the box 
>and a Prolific
>USB-to-Serial adapter. It all works FB,  N1MM Logger and SKimmer talk to 
>the K3
>via LP Bridge and the USB/serial link perfectly, including N1MM keying 
>the rig.
>
>THEN I hooked up my nice new P3 today.
>It talks to the K3 FB - it gets freq data from the K3 and sends VFO 
>changes to the K3.
>Everything else I've tested on the P3 also seems to work FB.
>
>HOWEVER, the PC cannot talk to the K3 THROUGH the P3 - via either the 
>Prolific USB/serial link  - or via a purely RS-232 link using the serial 
>port on the windows box, which I also tried.
>[Just in case it was a USB incompatibility issue]
>
>K3 Utility running in the Windows box polls the K3 via the link and the 
>P3 and gets no response.
>Everything is set to 38,400 baud, 8 data bits, 1 stop bit, no parity.
>The P3 is running the firmware which was installed at Elecraft, it was 
>shipped to me a week ago.
>
>Any suggestions - please?
>
>Eric VA7DZ
>
>
>
>
>
>  

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[Elecraft] K3 power output instability

[Arliss]

Here's follow-up on the power instability problem I have been 
experiencing with one of my K3s:


Although I already had the latest firmware loaded in the K3, I 
reloaded the firmware.  I also ran the VCO MD calibration and 
checked the 3 mounting screws on the bottom of the K3, as someone 
had suggested.  I also ran the parameter initialization.


After all of the above, I again ran the TX gain calibration and 
once again it failed (for both low/high power).  I have contacted 
Elecraft support and am waiting to hear from them.


73,  Arliss
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Re: [Elecraft] Wait For The K4 Direct RF Sampled SDR?

[David Gilbert]

The transmit IMD specs are pretty poor as well ... and the interesting 
thing is that neither deficiency was even discussed in the narrative 
portion of the review.


73,
Dave  AB7E



On 3/15/2013 5:30 PM, Rick Stealey wrote:

Speaking of competitive rigs, I see QST just reviewed the FT3000.  The number 
that caught
my eye (well actually the chart) was composit noise.  A whopping -120 dbc at 10 
KHz
and beyond !  Yikes.  The K3 was -140 dbc at 10 KHz abd -155 at 100 KHz.
You sure don't want one of those noise generators at your next Field Day.
If someone shows up with one, put him on 10 meters at the far end of
the field.



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Re: [Elecraft] Wait For The K4 Direct RF Sampled SDR?

[Vic K2VCO]

CW looked a little clicky, too.

On 3/15/2013 6:01 PM, Wayne Burdick wrote:

Rick Stealey wrote:


Speaking of competitive rigs, I see QST just reviewed the FT3000.  The number 
that caught
my eye (well actually the chart) was composit noise.  A whopping -120 dbc at 10 
KHz
and beyond !  Yikes.  The K3 was -140 dbc at 10 KHz and -155 at 100 KHz.


Just to clarify for those who aren't used to hearing these numbers, -140 dBc phase noise 
is significantly better than -120 dBc. It could mean the difference between having two 
transceivers coexist or not when in close proximity -- hence Rick's example of Field Day.


73,
Wayne
N6KR



You sure don't want one of those noise generators at your next Field Day.
If someone shows up with one, put him on 10 meters at the far end of
the field.




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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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Re: [Elecraft] computer - P3 - K3 communications blues

[Alan Bloom]

It may be a baud rate issue.  You can change the baud rate of the 
PC-to-PC link in a MENU entry in the P3 called "RS232".


Note that changing the baud rate of the K3 doesn't do anything when the 
P3 is connected.  The P3 will change it right back to 38400.  The baud 
rate that the computer sees is the one that is set in the P3 menu.


Alan N1AL


On 3/15/2013 5:58 PM, eric manning wrote:

I have a Windows XP box connected to my K3 using a USB port on the box
and a Prolific
USB-to-Serial adapter. It all works FB,  N1MM Logger and SKimmer talk to
the K3
via LP Bridge and the USB/serial link perfectly, including N1MM keying
the rig.

THEN I hooked up my nice new P3 today.
It talks to the K3 FB - it gets freq data from the K3 and sends VFO
changes to the K3.
Everything else I've tested on the P3 also seems to work FB.

HOWEVER, the PC cannot talk to the K3 THROUGH the P3 - via either the
Prolific USB/serial link  - or via a purely RS-232 link using the serial
port on the windows box, which I also tried.
[Just in case it was a USB incompatibility issue]

K3 Utility running in the Windows box polls the K3 via the link and the
P3 and gets no response.
Everything is set to 38,400 baud, 8 data bits, 1 stop bit, no parity.
The P3 is running the firmware which was installed at Elecraft, it was
shipped to me a week ago.

Any suggestions - please?

Eric VA7DZ









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Re: [Elecraft] Wait For The K4 Direct RF Sampled SDR?

[Wayne Burdick]

Rick Stealey wrote:

Speaking of competitive rigs, I see QST just reviewed the FT3000.   
The number that caught
my eye (well actually the chart) was composit noise.  A whopping  
-120 dbc at 10 KHz
and beyond !  Yikes.  The K3 was -140 dbc at 10 KHz and -155 at 100  
KHz.


Just to clarify for those who aren't used to hearing these numbers,  
-140 dBc phase noise is significantly better than -120 dBc. It could  
mean the difference between having two transceivers coexist or not  
when in close proximity -- hence Rick's example of Field Day.


73,
Wayne
N6KR


You sure don't want one of those noise generators at your next Field  
Day.

If someone shows up with one, put him on 10 meters at the far end of
the field.




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[Elecraft] computer - P3 - K3 communications blues

[eric manning]

I have a Windows XP box connected to my K3 using a USB port on the box 
and a Prolific
USB-to-Serial adapter. It all works FB,  N1MM Logger and SKimmer talk to 
the K3
via LP Bridge and the USB/serial link perfectly, including N1MM keying 
the rig.


THEN I hooked up my nice new P3 today.
It talks to the K3 FB - it gets freq data from the K3 and sends VFO 
changes to the K3.

Everything else I've tested on the P3 also seems to work FB.

HOWEVER, the PC cannot talk to the K3 THROUGH the P3 - via either the 
Prolific USB/serial link  - or via a purely RS-232 link using the serial 
port on the windows box, which I also tried.

[Just in case it was a USB incompatibility issue]

K3 Utility running in the Windows box polls the K3 via the link and the 
P3 and gets no response.

Everything is set to 38,400 baud, 8 data bits, 1 stop bit, no parity.
The P3 is running the firmware which was installed at Elecraft, it was 
shipped to me a week ago.


Any suggestions - please?

Eric VA7DZ





 



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Re: [Elecraft] Wait For The K4 Direct RF Sampled SDR?

[Rick Stealey]

Speaking of competitive rigs, I see QST just reviewed the FT3000.  The number 
that caught 
my eye (well actually the chart) was composit noise.  A whopping -120 dbc at 10 
KHz
and beyond !  Yikes.  The K3 was -140 dbc at 10 KHz abd -155 at 100 KHz.
You sure don't want one of those noise generators at your next Field Day.
If someone shows up with one, put him on 10 meters at the far end of
the field.



  
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Re: [Elecraft] OT- RS232 CARD input clamped to 2.5V

[Don Wilhelm]

Brian,

Many PC related "RS-232" ports and devices do not conform to the 
switching levels of RS-232 standard.
Yes, that means they will work, but only over short distance cables 
(which is the norm in the PC world).
If the recieving end is clamping the voltage, it should not reduce the 
noise immunity unless it is taking significant current from the driver.  
There are factors involved other than the voltage - like the slope of 
the positive going pulses.


73,
Don W3FPR

On 3/15/2013 3:40 PM, Brian Alsop wrote:

Guys,

Looking for some insight.

I was doing some checkout of a device.  The device output a +10/-10V 
RS232 signal swing from a MAX232 device.


When it was attached to a PCI serial port card, the output dropped to 
+2.5/-10 V.  In other words, the PCI card was clamping the input 
positive value.  It does work OK even clamped like this.


I'm guessing the internal chips are low voltage devices.

I though one of the redeeming values (for hams at least) of the 
+15/-15 volt RS232 spec was noise immunity.  Clamping it to 2.5 Volts 
means considerably less noise (RFI) immunity?


True we do get along with lots of 5V TTL stuff.

73 de Brian/K3KO



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5677 - Release Date: 03/15/13

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Re: [Elecraft] OT- RS232 CARD input clamped to 2.5V

[Pete Smith N4ZR]

Sure.  I've been dealing for years with 3.3 volt parallel port cards.  I 
think that the noise immunity is much more a function of good design 
than the voltage level.


73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.

On 3/15/2013 3:40 PM, Brian Alsop wrote:

Guys,

Looking for some insight.

I was doing some checkout of a device.  The device output a +10/-10V 
RS232 signal swing from a MAX232 device.


When it was attached to a PCI serial port card, the output dropped to 
+2.5/-10 V.  In other words, the PCI card was clamping the input 
positive value.  It does work OK even clamped like this.


I'm guessing the internal chips are low voltage devices.

I though one of the redeeming values (for hams at least) of the 
+15/-15 volt RS232 spec was noise immunity.  Clamping it to 2.5 Volts 
means considerably less noise (RFI) immunity?


True we do get along with lots of 5V TTL stuff.

73 de Brian/K3KO



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5677 - Release Date: 03/15/13

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[Elecraft] OT- RS232 CARD input clamped to 2.5V

[Brian Alsop]

Guys,

Looking for some insight.

I was doing some checkout of a device.  The device output a +10/-10V 
RS232 signal swing from a MAX232 device.


When it was attached to a PCI serial port card, the output dropped to 
+2.5/-10 V.  In other words, the PCI card was clamping the input 
positive value.  It does work OK even clamped like this.


I'm guessing the internal chips are low voltage devices.

I though one of the redeeming values (for hams at least) of the +15/-15 
volt RS232 spec was noise immunity.  Clamping it to 2.5 Volts means 
considerably less noise (RFI) immunity?


True we do get along with lots of 5V TTL stuff.

73 de Brian/K3KO



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5677 - Release Date: 03/15/13

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[Elecraft] KX3 Noise Reduction Performance

[Ed Ketterer]

All,

The effect of the NR (DSP) feature on my KX3 appears to vary with the band I
am on. On 80m and 40m, NR significantly reduces noise when the preamp is
off, but has little effect when the preamp is on. On 30m and 20m, there
might be a bit more noise reduction provided when the preamp is on, but
again, the effect is much more dramatic when it's off. On 17m and above, I
get very effective noise reduction regardless of whether the preamp is on or
off. It would be nice if the NR feature provided significant noise reduction
on 40 and 20 with the preamp on. Is anyone else experiencing this? Any
ideas? I'm running the current firmware.

Ed, K8SZN




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[Elecraft] FW: K3: Use VFO-B to select dBV

[Cady, Fred]

I forgot to hit reply all.  

-Original Message-
From: Cady, Fred 
Sent: Friday, March 15, 2013 7:24 AM
To: 'KD7YZ Bob'
Subject: RE: [Elecraft] K3: Use VFO-B to select dBV

Hi Bob,
I'm not at my  book on that topic but from memory here goes:
The dBv measurement is really great once you catch on to how it works.
Note that dBV is NOT dB relative to a volt. It is relative to the last
time you made the AFV voltage measurement.
I think Tech Mode needs to be on. It used to, but maybe a firmware
update made it available.
Plug in the GO to get a solid signal at, say -73 dBm.
So, get the VFO B display in the right state and then turn VFO B to show
the AFV display.
Wait until the AFV display settles on a value. Now rotate VFO B to dBV.
It should settle to 0.0 dBV. Now, WITHOUT changing the VFO B, make a
change in the input conditions. E.G, change the XG3 to -107 dBm. You
should see the dbV display change to show the decrease in signal
strength. If you have AGC on, you probably won't see -34 dBV.
The trick to all this is once you set up for 0 dBV, DON'T change the VFO
B back to the AFV display.

Cheers,
Fred KE7X

"The Elecraft K3: Design, Configuration and Operation Second Edition"
www.ke7x.com

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD7YZ Bob
Sent: Friday, March 15, 2013 6:46 AM
To: K3 List
Subject: Re: [Elecraft] K3: Use VFO-B to select dBV


On Friday Gregory used a Straight-Key to send:
-Original Comment---
> Have you got Menu Tech Mode ON?

Well, gee. Yes, I did have it on.  Really. But now it is "OFF". So I
will guess that the selection is not Persistent. Or that setting has
another way of reverting to OFF.

Not I am seeing 99.9dBV for an RMS reading of "1.09 A".
This isn't too helpful though.  Perhaps David can elaborate on how I get
to a meaningful reading.

thanks for the help.

--
Best regards,
Bob  KD7YZWin7-64bit + K3

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Re: [Elecraft] Info - PR781 cable

[Fred Smith]

I can't recall the number but it's the one with the red color coded ring on
it if that helps.

73,
Fred/N0AZZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ricardo - PY2PT
Sent: Friday, March 15, 2013 12:14 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Info - PR781 cable

Dear guys,


Please, do you know what is the correct cable to use this mic with K3?
I think that is the CC1 - XLR - K. Is it correct?


Best Regards

--
Ricardo Rodrigues - PY2PT / 3D2PT
py2pt.bra...@gmail.com
http://www.py2pt.com
@ricrodrigues
TO2FH (Mayotte Island - 2011) team member 8R1PY team member (2012)
T30PY/T30SIX team member (2012) http://www.mdxc.org/t30py
http://www.facebook.com/t30py @t30py
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No virus found in this message.
Checked by AVG - www.avg.com
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[Elecraft] Elecraft] Kx3 lithium batteries life

[Mike Mardis]

Just curious! What is your min battery voltage set to?
Mike Mardis
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Re: [Elecraft] Kenwood Mc-60 mic with K2

[Bob AC2FA]

I don't believe it was this thread the mod asked closed. The thread the mod 
asked closed was the Heil mic thread. This thread started a bit later. 

Steve W1SFR- thanks for asking the question. I was offered the same mic for my 
K2.   

73,
Bob
AC2FA

Sent from my iPhone

On Mar 15, 2013, at 10:23, riese-k3...@juno.com wrote:

> I thought the list admin requested ending this string  ??
> 
> Bob K3DJC
> On Fri, 15 Mar 2013 08:25:57 -0400 Stephen Roberts
>  writes:
>> There is no "A" anywhere indicated on the microphone or base. Preamp 
>> is off and switch is on low impedence. When I plug it in I get a 
>> continuous series if dits and no response from any of the controls 
>> on the unit.
>> 
>> Steve
>> W1SFR
>> 
>> 
>> Sent from my iPad
>> 
>> On Mar 14, 2013, at 9:44 PM, "Joe Subich, W4TV"  
>> wrote:
>> 
>>> 
>>> With a preamp switch on the base, that is an MC-60A.
>>> 
>>> What position is the slide switch *on the microphone*?  That is
>> the
>>> switch that determines high vs. low impedance.  You  want it in
>> the
>>> "Low" (500 Ohm) position for the K2 (and K3).   There are two
>> switches
>>> - the one toward the rear is impedance, the one toward the front
>> is
>>> ON/OFF (the microphone element is disconnected in the OFF
>> position).
>>> 
>>> If your microphone did not come with a manual, you may want to
>> download
>>> a copy from:   or
>>> 
>>> 
>>> 73,
>>> 
>>>  ... Joe, W4TV
>>> 
>>> 
>>> On 3/14/2013 7:15 PM, Mike Flowers wrote:
 My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   
>> There
 isn't an 'A' on the Kenwood trim on the front - just MC-60.   
>> Although it
 may be an MC-60A, there is no visible designation as such.
 
 - 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3
>> Addict, Maui
 
 -Original Message-
 From: elecraft-boun...@mailman.qth.net
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don
>> Wilhelm
 Sent: Thursday, March 14, 2013 4:12 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2
 
 The MC-60 (not A) schematic that I see on the G4WPW website
>> indicates that
 the switch changes from low impedance to high impedance.  For use
>> with the
 K3 and other modern transceivers the switch should be in the low
>> impedance
 position.
 From the schematic, I cannot understand an "out" label on the
>> switch.
 If you have an MC-60A, then "out" would be reasonable referring
>> to the
 preamp either in or out.
 
 73,
 Don W3FPR
 
 On 3/14/2013 6:53 PM, Stephen Roberts wrote:
> It's a MC-60 and the switch is "Out".
 
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Re: [Elecraft] Kx3 lithium batteries life

[Rich Heineck]

Ken,

The lithium batteries should be able to keep the clock going for quite a 
few years.  When the KX3 is off, the KXBC3 current should be around 50 
to 75 microamps, depending on battery voltage, which comes out to 
roughly 1.5 mAH per day.


73,
Rich  AC7MA


On 03/15/2013 08:33 AM, kennet4...@aol.com wrote:

I have had lithium batteries in my KX3 since I received it last Nov.   I
use the batteries only to keep the clock alive and have never used them to
transmit or receive.. I use an external power supply to transmit etc,  I now
find that if I try to turn on the rig using just the batteries the rig comes
on then immidiately turns itself off.  I assume the batteries are to the
point where there is not enough voltage to power up the rig but the B T voltage
reads 10.5 to 11 volts which I thought should be enough to turn the rig on
Does the clock in the KX3 take that much  power that even lithium batteries
have a very short life .??  Has anyone else experienced this situation??
Is there something I am missing ??
  
Ken   K1DWZ

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Re: [Elecraft] Kx3 lithium batteries life

[Fred Smith]

It depends on the quality of the batteries, some will hold a charge for a
long time for up to a year shelf life and still have 75-80% charge. I
checked mine the other day (bought in Oct) and was still in good shape. I do
use an outboard charger/conditioner for the first time on the batteries
takes about a full day to complete the condition.

Fred/N0AZZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of kennet4...@aol.com
Sent: Friday, March 15, 2013 10:34 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Kx3 lithium batteries life

I have had lithium batteries in my KX3 since I received it last Nov.   I 
use the batteries only to keep the clock alive and have never used them to
transmit or receive.. I use an external power supply to transmit etc,  I now
find that if I try to turn on the rig using just the batteries the rig comes
on then immidiately turns itself off.  I assume the batteries are to the
point where there is not enough voltage to power up the rig but the B T
voltage 
reads 10.5 to 11 volts which I thought should be enough to turn the rig on

Does the clock in the KX3 take that much  power that even lithium batteries
have a very short life .??  Has anyone else experienced this situation??  
Is there something I am missing ??
 
Ken   K1DWZ
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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2240 / Virus Database: 2641/5677 - Release Date: 03/15/13

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[Elecraft] Kx3 lithium batteries life

[Kennet4723]

I have had lithium batteries in my KX3 since I received it last Nov.   I 
use the batteries only to keep the clock alive and have never used them to 
transmit or receive.. I use an external power supply to transmit etc,  I now 
find that if I try to turn on the rig using just the batteries the rig comes 
on then immidiately turns itself off.  I assume the batteries are to the 
point where there is not enough voltage to power up the rig but the B T voltage 
reads 10.5 to 11 volts which I thought should be enough to turn the rig on   
Does the clock in the KX3 take that much  power that even lithium batteries 
have a very short life .??  Has anyone else experienced this situation??  
Is there something I am missing ??
 
Ken   K1DWZ
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Re: [Elecraft] Kenwood Mc-60 mic with K2

[riese-k3djc]

I thought the list admin requested ending this string  ??

Bob K3DJC
On Fri, 15 Mar 2013 08:25:57 -0400 Stephen Roberts
 writes:
> There is no "A" anywhere indicated on the microphone or base. Preamp 
> is off and switch is on low impedence. When I plug it in I get a 
> continuous series if dits and no response from any of the controls 
> on the unit.
> 
> Steve
> W1SFR
> 
> 
> Sent from my iPad
> 
> On Mar 14, 2013, at 9:44 PM, "Joe Subich, W4TV"  
> wrote:
> 
> > 
> > With a preamp switch on the base, that is an MC-60A.
> > 
> > What position is the slide switch *on the microphone*?  That is 
> the
> > switch that determines high vs. low impedance.  You  want it in 
> the
> > "Low" (500 Ohm) position for the K2 (and K3).   There are two 
> switches
> > - the one toward the rear is impedance, the one toward the front 
> is
> > ON/OFF (the microphone element is disconnected in the OFF 
> position).
> > 
> > If your microphone did not come with a manual, you may want to 
> download
> > a copy from:   or
> > 
> > 
> > 73,
> > 
> >   ... Joe, W4TV
> > 
> > 
> > On 3/14/2013 7:15 PM, Mike Flowers wrote:
> >> My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   
> There
> >> isn't an 'A' on the Kenwood trim on the front - just MC-60.   
> Although it
> >> may be an MC-60A, there is no visible designation as such.
> >> 
> >> - 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3 
> Addict, Maui
> >> 
> >> -Original Message-
> >> From: elecraft-boun...@mailman.qth.net
> >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don 
> Wilhelm
> >> Sent: Thursday, March 14, 2013 4:12 PM
> >> To: elecraft@mailman.qth.net
> >> Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2
> >> 
> >> The MC-60 (not A) schematic that I see on the G4WPW website 
> indicates that
> >> the switch changes from low impedance to high impedance.  For use 
> with the
> >> K3 and other modern transceivers the switch should be in the low 
> impedance
> >> position.
> >>  From the schematic, I cannot understand an "out" label on the 
> switch.
> >> If you have an MC-60A, then "out" would be reasonable referring 
> to the
> >> preamp either in or out.
> >> 
> >> 73,
> >> Don W3FPR
> >> 
> >> On 3/14/2013 6:53 PM, Stephen Roberts wrote:
> >>> It's a MC-60 and the switch is "Out".
> >> 
> >> __
> >> Elecraft mailing list
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> >> 
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Re: [Elecraft] K3: Use VFO-B to select dBV

[David Pratt]

Bob - The K3 manual does not give as much detail as the KX3 manual which
describes the functions as follows

"Audio Signal Level AFV. This display shows the approximate level of the
audio output, prior to the AF gain control (in other words, the AF gain
control has no effect on the reading). The reading will vary with preamp
and attenuator settings as well as the RF gain control. AFV is normally
used in conjunction with the dBV function.

"Relative audio signal (dBV). This display can be used to measure
receiver sensitivity or gain/loss of various stages, or compare two
signals. To use it, first select AFV and allow the voltage reading to
stabilize. (This may not be possible with modulated or rapidly changing
signals.) Once the signal appears stable, select dBV. You should now see
a reading of around 0dBV relative to the last AFV reading. If you change
the setting of the preamp or attenuator, you should see this reading
change. However, it may not change as much as you expect unless you turn
AGC off. (Be sure to turn AF gain down BEFORE turning AGC off, as the
signal may become very loud.) Measurement of receive sensitivity (MDS)
requires a calibrated 1-uV signal source such as an Elecraft XG1/2/3.
These sources include instructions for measuring MDS."

I hope that helps, Bob.

73 de David G4DMP

In a recent message, KD7YZ Bob  writes
>Not I am seeing 99.9dBV for an RMS reading of "1.09 A".
>This isn't too helpful though.  Perhaps David
>can elaborate on how I get to a meaningful reading.
-- 
 + - - - - - - - - - - - - - - - - +
 | David M Pratt, Kippax, Leeds.   |
 | Website: http://www.g4dmp.co.uk |
 + - - - - - - - - - - - - - - - - +

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Re: [Elecraft] K3: Use VFO-B to select dBV

[David G4DMP]

In a recent message, KD7YZ Bob  writes
>
>Not I am seeing 99.9dBV for an RMS reading of "1.09 A".
>This isn't too helpful though.  Perhaps David
>can elaborate on how I get to a meaningful reading.

The 1.09A is the supply current, Bob; not at all related to the dBV.

David

-- 
 + - - - - - - - - - - - - - - - - +
 | David M Pratt, Kippax, Leeds.   |
 | Website: http://www.g4dmp.co.uk |
 + - - - - - - - - - - - - - - - - +

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Re: [Elecraft] K3: Use VFO-B to select dBV

[KD7YZ Bob]

On Friday Gregory used a Straight-Key to send:
-Original Comment---
> Have you got Menu Tech Mode ON?

Well, gee. Yes, I did have it on.  Really. But now it is "OFF". So I
will guess that the selection is not Persistent. Or that setting has
another way of reverting to OFF.

Not I am seeing 99.9dBV for an RMS reading of "1.09 A".
This isn't too helpful though.  Perhaps David
can elaborate on how I get to a meaningful reading.

thanks for the help.

-- 
Best regards,
Bob  KD7YZWin7-64bit + K3

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Re: [Elecraft] Kenwood Mc-60 mic with K2

[Joe Subich, W4TV]

When I plug it in I get a continuous series if dits and no response
from any of the controls on the unit.


I am not a K2 user but I recall the PTT line is also the "dit" line
of the keyer if the keyer is enabled.  Have you checked the "Lock"
switch on the microphone base?


Well looking at the schematic, it is an "A" so I guess it's not
suitable for the K2.


Well, I disagree.  However, if you can't make it work and would like
to unload it, contact me off the lost.

73,

   ... Joe, W4TV


On 3/15/2013 8:25 AM, Stephen Roberts wrote:

There is no "A" anywhere indicated on the microphone or base. Preamp is off and 
switch is on low impedence. When I plug it in I get a continuous series if dits and no 
response from any of the controls on the unit.

Steve
W1SFR


Sent from my iPad

On Mar 14, 2013, at 9:44 PM, "Joe Subich, W4TV"  wrote:



With a preamp switch on the base, that is an MC-60A.

What position is the slide switch *on the microphone*?  That is the
switch that determines high vs. low impedance.  You  want it in the
"Low" (500 Ohm) position for the K2 (and K3).   There are two switches
- the one toward the rear is impedance, the one toward the front is
ON/OFF (the microphone element is disconnected in the OFF position).

If your microphone did not come with a manual, you may want to download
a copy from:   or


73,

   ... Joe, W4TV


On 3/14/2013 7:15 PM, Mike Flowers wrote:

My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   There
isn't an 'A' on the Kenwood trim on the front - just MC-60.   Although it
may be an MC-60A, there is no visible designation as such.

- 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3 Addict, Maui

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Thursday, March 14, 2013 4:12 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2

The MC-60 (not A) schematic that I see on the G4WPW website indicates that
the switch changes from low impedance to high impedance.  For use with the
K3 and other modern transceivers the switch should be in the low impedance
position.
  From the schematic, I cannot understand an "out" label on the switch.
If you have an MC-60A, then "out" would be reasonable referring to the
preamp either in or out.

73,
Don W3FPR

On 3/14/2013 6:53 PM, Stephen Roberts wrote:

It's a MC-60 and the switch is "Out".


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Re: [Elecraft] Kenwood Mc-60 mic with K2

[Stephen Roberts]

Well looking at the schematic, it is an "A" so I guess it's not suitable for 
the K2.

Steve

Sent from my iPad

On Mar 14, 2013, at 9:44 PM, "Joe Subich, W4TV"  wrote:

> 
> With a preamp switch on the base, that is an MC-60A.
> 
> What position is the slide switch *on the microphone*?  That is the
> switch that determines high vs. low impedance.  You  want it in the
> "Low" (500 Ohm) position for the K2 (and K3).   There are two switches
> - the one toward the rear is impedance, the one toward the front is
> ON/OFF (the microphone element is disconnected in the OFF position).
> 
> If your microphone did not come with a manual, you may want to download
> a copy from:   or
> 
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> On 3/14/2013 7:15 PM, Mike Flowers wrote:
>> My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   There
>> isn't an 'A' on the Kenwood trim on the front - just MC-60.   Although it
>> may be an MC-60A, there is no visible designation as such.
>> 
>> - 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3 Addict, Maui
>> 
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
>> Sent: Thursday, March 14, 2013 4:12 PM
>> To: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2
>> 
>> The MC-60 (not A) schematic that I see on the G4WPW website indicates that
>> the switch changes from low impedance to high impedance.  For use with the
>> K3 and other modern transceivers the switch should be in the low impedance
>> position.
>>  From the schematic, I cannot understand an "out" label on the switch.
>> If you have an MC-60A, then "out" would be reasonable referring to the
>> preamp either in or out.
>> 
>> 73,
>> Don W3FPR
>> 
>> On 3/14/2013 6:53 PM, Stephen Roberts wrote:
>>> It's a MC-60 and the switch is "Out".
>> 
>> __
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Re: [Elecraft] Kenwood Mc-60 mic with K2

[Stephen Roberts]

There is no "A" anywhere indicated on the microphone or base. Preamp is off and 
switch is on low impedence. When I plug it in I get a continuous series if dits 
and no response from any of the controls on the unit.

Steve
W1SFR


Sent from my iPad

On Mar 14, 2013, at 9:44 PM, "Joe Subich, W4TV"  wrote:

> 
> With a preamp switch on the base, that is an MC-60A.
> 
> What position is the slide switch *on the microphone*?  That is the
> switch that determines high vs. low impedance.  You  want it in the
> "Low" (500 Ohm) position for the K2 (and K3).   There are two switches
> - the one toward the rear is impedance, the one toward the front is
> ON/OFF (the microphone element is disconnected in the OFF position).
> 
> If your microphone did not come with a manual, you may want to download
> a copy from:   or
> 
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> On 3/14/2013 7:15 PM, Mike Flowers wrote:
>> My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   There
>> isn't an 'A' on the Kenwood trim on the front - just MC-60.   Although it
>> may be an MC-60A, there is no visible designation as such.
>> 
>> - 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3 Addict, Maui
>> 
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
>> Sent: Thursday, March 14, 2013 4:12 PM
>> To: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2
>> 
>> The MC-60 (not A) schematic that I see on the G4WPW website indicates that
>> the switch changes from low impedance to high impedance.  For use with the
>> K3 and other modern transceivers the switch should be in the low impedance
>> position.
>>  From the schematic, I cannot understand an "out" label on the switch.
>> If you have an MC-60A, then "out" would be reasonable referring to the
>> preamp either in or out.
>> 
>> 73,
>> Don W3FPR
>> 
>> On 3/14/2013 6:53 PM, Stephen Roberts wrote:
>>> It's a MC-60 and the switch is "Out".
>> 
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Re: [Elecraft] K3: Use VFO-B to select dBV

[Fred Smith]

You must be in Tech Mode to see it.


73,Fred/N0AZZ

K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT/100
P3/SVGA--KPA500--KAT500--W2



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD7YZ Bob
Sent: Friday, March 15, 2013 6:06 AM
To: K3 List
Subject: [Elecraft] K3: Use VFO-B to select dBV

Howdy K3' people:

According to the Manual, Page 36, I can use VFO-B display to see dBV after
AFV settles down.

I see the RMS voltage reading but I never get to see the equivalent dBV.
So I rotated through the variables available, by turning the VFO-B knob,
everything else is the but no dBV.

And the reason I want to see this is because I just received my new XG3
Signal Source. In it they mention a way to see dBV on the K3 .

--
73
KD7YZ Bob

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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2904 / Virus Database: 2641/6173 - Release Date: 03/14/13

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Re: [Elecraft] K3: Use VFO-B to select dBV

[Gary Gregory]

Have you got Menu Tech Mode ON?

Gary

On 15 March 2013 22:33, David G4DMP  wrote:

> I am getting dBV here, Bob, the VFO-B knob being fully clockwise.
>
> I presume you have up-to-date firmware? Mine is uC=4.61, D1/2=2.80,
> FL=1.15, DR=1.03.
>
> 73 de David G4DMP
>
> In a recent message, KD7YZ Bob  writes
> >According to the Manual, Page 36, I can use VFO-B display to see dBV
> >after AFV settles down.
> >
> >I see the RMS voltage reading but I never get to see the equivalent dBV.
> >So I rotated through the variables available, by turning the VFO-B knob,
> >everything else is the but no dBV.
>
> --
>  + - - - - - - - - - - - - - - - - +
>  | David M Pratt, Kippax, Leeds.   |
>  | Website: http://www.g4dmp.co.uk |
>  + - - - - - - - - - - - - - - - - +
>
> __
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>
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> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
*Gary - VK1ZZ
Skype: Gary.VK1ZZ
Motorhome Portable
The Shack*
*Elecraft K3
P3 Panadapter
KPA500FT
KAT500FT**
KX3-K
*
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Re: [Elecraft] K3: Use VFO-B to select dBV

[David G4DMP]

I am getting dBV here, Bob, the VFO-B knob being fully clockwise.

I presume you have up-to-date firmware? Mine is uC=4.61, D1/2=2.80,
FL=1.15, DR=1.03.

73 de David G4DMP

In a recent message, KD7YZ Bob  writes
>According to the Manual, Page 36, I can use VFO-B display to see dBV
>after AFV settles down.
>
>I see the RMS voltage reading but I never get to see the equivalent dBV.
>So I rotated through the variables available, by turning the VFO-B knob,
>everything else is the but no dBV.

-- 
 + - - - - - - - - - - - - - - - - +
 | David M Pratt, Kippax, Leeds.   |
 | Website: http://www.g4dmp.co.uk |
 + - - - - - - - - - - - - - - - - +

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[Elecraft] K3: Use VFO-B to select dBV

[KD7YZ Bob]

Howdy K3' people:

According to the Manual, Page 36, I can use VFO-B display to see dBV
after AFV settles down.

I see the RMS voltage reading but I never get to see the equivalent dBV.
So I rotated through the variables available, by turning the VFO-B knob,
everything else is the but no dBV.

And the reason I want to see this is because I just received my new XG3
Signal Source. In it they mention a way to see dBV on the K3 .

-- 
73
KD7YZ Bob

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[Elecraft] Please Review My Attached Document

[Steve Hartz]

Hello,

Please view the document i uploaded for you using Google docs.
Follow Here just sign in with your email to view the document its very 
important.

Thank you.



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Re: [Elecraft] John Moyle Field Fay in VK

[Mark Forsyth]

I'll be around for a while on 15, 20 and 40. 

It'd be good to work other Elecrafters around the place and to give my KX3 a
proper workout...:-)

Cheers,
VK3ZMF



> 
> This weekend the JMFD will be running in VK.
> 
> I expect many portable and base stations will be running on HF. (10, 15,
20,
> 40, 80 and 160)
> 
> It would be nice if we could work some kon this list so how about
listening
> out for us...VK1ZZ / VK4XA an all Elecraft operation.
> 
> 73
> 
> Gary
> Vk1ZZ
> K3, KX3, KPA500, KAT500,P3.

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