Date   

Re: [Elecraft_K3] KAT-500 Tuning

Tom <nineback@...>
 

Thanks Jim.  I never thought to try it that way.  That works but I thought the KAT500 (no dash) would put the K3s into transmit mode automatically when I pushed the tune button on the tuner since I am using the Elecraft cable set.

It seems like when I first got the KAT500 hooked up to the K3s and was going through the different frequencies letting the KAT500 populate its memories I was able to put the tuner in Auto mode and hit the tune button on the KAT500  and it initiated a tune.  Maybe I am confusing it with when I had my Icom 7300 hooked to the tuner.

Rick also replied.

Thanks to both of you.




73,
Tom - KQ5S

On Sun, Mar 26, 2017 at 11:27 AM, Jim Blanca ke8g.jim@... [Elecraft_K3] <Elecraft_K3@...> wrote:
 

Hi Tom,
You say you "tap" the Tune button on the KAT-500... try putting it into manual, then HOLD the button until the MAN light flashes, then hit the tune button on the radio.

73 de Jim - KE8G

On Sun, Mar 26, 2017 at 10:58 AM, Tom nineback@... [Elecraft_K3] <Elecraft_K3@...> wrote:
 

I have my KAT-500 hooked to my K3S and to my KPA-500.  I have the ATU on the K3s set to bypass.  When I tap the tune button on the  KAT-500 or press the tune key on the K3s the mode light on the KAT-500 just flashes when in Auto or Man mode.  In Byp mode it switches to Man and then the man flashes which I believe is correct.

I use the KAT-500 utility program and get the same results.

Why isn't a tune initiated?

73,
Tom - KQ5S




Re: [Elecraft_K3] KAT-500 Tuning

Rick NK7I
 

What is your tuning level (RF out)?  Have you selected the correct antenna output on the K3?

Ten watts is safe and adequate for tuning.  Then a LONG tap on the K3 TUN button will initiate transmitting for tuning.  When you hear the machine gun ratchet, you're tuning.  When it stops, check the match and if ok, press the TUN button to end the transmission.  If it's not ok, within 5 seconds press the TUNE button on the KAT500 (no dash) and it will start the longer tuning cycle, running through ALL possible matches.

The flashing auto/man means it's ready for signal for tuning.  It's waiting for input.

Rick nhc


On 3/26/2017 7:58 AM, Tom nineback@... [Elecraft_K3] wrote:
 
I have my KAT-500 hooked to my K3S and to my KPA-500.  I have the ATU on the K3s set to bypass.  When I tap the tune button on the  KAT-500 or press the tune key on the K3s the mode light on the KAT-500 just flashes when in Auto or Man mode.  In Byp mode it switches to Man and then the man flashes which I believe is correct.

I use the KAT-500 utility program and get the same results.

Why isn't a tune initiated?

73,
Tom - KQ5S


Re: [Elecraft_K3] KAT-500 Tuning

KE8G
 

Hi Tom,
You say you "tap" the Tune button on the KAT-500... try putting it into manual, then HOLD the button until the MAN light flashes, then hit the tune button on the radio.

73 de Jim - KE8G

On Sun, Mar 26, 2017 at 10:58 AM, Tom nineback@... [Elecraft_K3] <Elecraft_K3@...> wrote:
 

I have my KAT-500 hooked to my K3S and to my KPA-500.  I have the ATU on the K3s set to bypass.  When I tap the tune button on the  KAT-500 or press the tune key on the K3s the mode light on the KAT-500 just flashes when in Auto or Man mode.  In Byp mode it switches to Man and then the man flashes which I believe is correct.

I use the KAT-500 utility program and get the same results.

Why isn't a tune initiated?

73,
Tom - KQ5S



KAT-500 Tuning

Tom <nineback@...>
 

I have my KAT-500 hooked to my K3S and to my KPA-500.  I have the ATU on the K3s set to bypass.  When I tap the tune button on the  KAT-500 or press the tune key on the K3s the mode light on the KAT-500 just flashes when in Auto or Man mode.  In Byp mode it switches to Man and then the man flashes which I believe is correct.

I use the KAT-500 utility program and get the same results.

Why isn't a tune initiated?

73,
Tom - KQ5S


Re: 440 - 70cm Transverter

kl7rs@...
 

looking at some of the assembly instructions and photos, it looks like there are some surface mounted components already mounted on the board when received from Elecraft.  Is this the case, or does the kit builder also install all of the tiny surface mounted items?


Re: [Elecraft_K3] 440 - 70cm Transverter

Bob
 

Hi Norm,

              The KAT and KPA are totally different animals than the XV series of transverters.   That KAT & KPA are purely mechanical assembly kits. The XV's are kits that require mounting and soldering of components to the PCB and some assembly.  

You can see what is involved here:

http://www.elecraft.com/manual/E740094%20XV432%20Assembly%20Manual%20Rev%20D.pdf

              Degree of difficulty I'd say pretty much equal if you have the soldering skills.   Even if not it is pretty easy to master with the part sizes and thru the hole construction.  Certainly be a bigger and longer project but I think the reward is greater than just the mechanical kit.

              I have and use both the XV144 and XV432.  Both have the XTAL ovens and High accuracy crystal. If your considering these I'd do them with the initial build rather than a later mod. 

73,

Bob

K2TK ex KN2TKR (1956) & K2TKR


On 3/25/2017 8:42 PM, kl7rs@... [Elecraft_K3] wrote:

 

I have put together both the Elecraft KAT500 and the KPA500 without any issues.   Now I'm considering the XV-432 Transverter and would like some feedback as to how hard the kit is to put together and align.

I'm primarily interested in using the XV-432 for satellite work.

Although I use a Flex 6700 for a transceiver, I truly love the Elecraft product line and all of their products have worked well with my Flex.

Norm



Posted by: kl7rs@...











440 - 70cm Transverter

kl7rs@...
 

I have put together both the Elecraft KAT500 and the KPA500 without any issues.   Now I'm considering the XV-432 Transverter and would like some feedback as to how hard the kit is to put together and align.

I'm primarily interested in using the XV-432 for satellite work.

Although I use a Flex 6700 for a transceiver, I truly love the Elecraft product line and all of their products have worked well with my Flex.

Norm



K3 K3S CW FILTER - sold

kenw817821@...
 

Elecraft KFL3A-200 shipped to your US address $60.

Ken K5WK

This has been sold.  Thanks.  Ken K5WK


Re: [Elecraft_K3] Re: Very basic questions...

John Saxon
 

Thank you Drew & Mel:

Powered up just fine...thanks

--
John
K5ENQ



From: "drew@... [Elecraft_K3]"
To: Elecraft_K3@...
Sent: Friday, March 24, 2017 12:36 PM
Subject: [Elecraft_K3] Re: Very basic questions...

 

Those kind of unpowered resistance measurements on semiconductors vary widely.  Your figures sound fine.

73,
Drew K3PA

---In Elecraft_K3@..., wrote :

I have K3 #3524 and am running resistance checks before powering up.

These are very simple questions..so be gentle with me  :-)

1. Measuring resistance at the12 VDC IN terminals.  The manual states the resistance must be greater than 3K ohms, and that readings may vary depending upon DMM lead placement.  With one placement of DMM (Fluke 179) leads, the readings take about a minute to stabilize, then do so at 3.5K.  Swapping the DMM leads results in another 1 minute (or so) stabilizing time with final value 4K.  I assume this passes the 3K test.  Correct?  The manual did not say about waiting for stabilization and I am just being careful.

2. Reading resistance from U13 to ground:  the manual says resistance must be greater than 150 ohms.  My DMM reads 145.6.  I have never been comfortable with "...that's close enough..."  Is the 145.6 ok?

Part of my caution is from a career in software development where substituting ',' for ';' can make a world of difference - I pay attention to the minutia.

Thanks,
John
K5ENQ




Re: [Elecraft_K3] Re: Very basic questions...

Mel Farrer, K6KBE
 

I agree, and the settling time is the caps charging from the DVM.

Mel, K6KBE



From: "drew@... [Elecraft_K3]"
To: Elecraft_K3@...
Sent: Friday, March 24, 2017 10:36 AM
Subject: [Elecraft_K3] Re: Very basic questions...

 

Those kind of unpowered resistance measurements on semiconductors vary widely.  Your figures sound fine.

73,
Drew K3PA

---In Elecraft_K3@..., wrote :

I have K3 #3524 and am running resistance checks before powering up.

These are very simple questions..so be gentle with me  :-)

1. Measuring resistance at the12 VDC IN terminals.  The manual states the resistance must be greater than 3K ohms, and that readings may vary depending upon DMM lead placement.  With one placement of DMM (Fluke 179) leads, the readings take about a minute to stabilize, then do so at 3.5K.  Swapping the DMM leads results in another 1 minute (or so) stabilizing time with final value 4K.  I assume this passes the 3K test.  Correct?  The manual did not say about waiting for stabilization and I am just being careful.

2. Reading resistance from U13 to ground:  the manual says resistance must be greater than 150 ohms.  My DMM reads 145.6.  I have never been comfortable with "...that's close enough..."  Is the 145.6 ok?

Part of my caution is from a career in software development where substituting ',' for ';' can make a world of difference - I pay attention to the minutia.

Thanks,
John
K5ENQ




Re: [Elecraft_K3] K3 K3s CW Filter for Sale

Paul Booth
 

I would like to buy if still available. Thanks.


Paul, W6IBU




Sent from EarthLink Mobile mail

On 3/23/17, 9:59 PM, kenw817821@hotmail.com [Elecraft_K3] <Elecraft_K3@yahoogroups.com> wrote:


From: "kenw817821@hotmail.com [Elecraft_K3]" <Elecraft_K3@yahoogroups.com>
To: Elecraft_K3@yahoogroups.com
Subject: [Elecraft_K3] K3 K3s CW Filter for Sale
Date: March 23, 2017 at 9:59:26 PM PDT


Elecraft KFL3A-200 shipped to your US address $60.
Ken K5WK


Re: Very basic questions...

Drew Vonada-Smith K3PA
 


Those kind of unpowered resistance measurements on semiconductors vary widely.  Your figures sound fine.

73,
Drew K3PA

---In Elecraft_K3@..., <johnbsaxon@...> wrote :

I have K3 #3524 and am running resistance checks before powering up.

These are very simple questions..so be gentle with me  :-)

1. Measuring resistance at the12 VDC IN terminals.  The manual states the resistance must be greater than 3K ohms, and that readings may vary depending upon DMM lead placement.  With one placement of DMM (Fluke 179) leads, the readings take about a minute to stabilize, then do so at 3.5K.  Swapping the DMM leads results in another 1 minute (or so) stabilizing time with final value 4K.  I assume this passes the 3K test.  Correct?  The manual did not say about waiting for stabilization and I am just being careful.

2. Reading resistance from U13 to ground:  the manual says resistance must be greater than 150 ohms.  My DMM reads 145.6.  I have never been comfortable with "...that's close enough..."  Is the 145.6 ok?

Part of my caution is from a career in software development where substituting ',' for ';' can make a world of difference - I pay attention to the minutia.

Thanks,
John
K5ENQ


Very basic questions...

John Saxon
 

I have K3 #3524 and am running resistance checks before powering up.

These are very simple questions..so be gentle with me  :-)

1. Measuring resistance at the12 VDC IN terminals.  The manual states the resistance must be greater than 3K ohms, and that readings may vary depending upon DMM lead placement.  With one placement of DMM (Fluke 179) leads, the readings take about a minute to stabilize, then do so at 3.5K.  Swapping the DMM leads results in another 1 minute (or so) stabilizing time with final value 4K.  I assume this passes the 3K test.  Correct?  The manual did not say about waiting for stabilization and I am just being careful.

2. Reading resistance from U13 to ground:  the manual says resistance must be greater than 150 ohms.  My DMM reads 145.6.  I have never been comfortable with "...that's close enough..."  Is the 145.6 ok?

Part of my caution is from a career in software development where substituting ',' for ';' can make a world of difference - I pay attention to the minutia.

Thanks,
John
K5ENQ


Re: [Elecraft_K3] External SDR for Bandscope..

Joe Subich, W4TV
 

On 3/23/2017 10:35 PM, Larry telegrapher@q.com [Elecraft_K3] wrote:
Btw, the 8215.30 mc IS freq is possibly particular to my unit and not
yours.
The IF frequency will vary slightly depending on mode (LSB, USB, CW,
CW-R, DATA, etc.) and the IF Shift as well as the filter offset for
any 5-pole filters.

Some SDR software includes provisions for mode specific offsets when
used as an "IF panadapter". Check your software documentation.

73,

... Joe, W4TV


On 3/23/2017 10:35 PM, Larry telegrapher@q.com [Elecraft_K3] wrote:
I hooked my SDRplay/SDRUNO up to the IF output, tuned it to the 8.215.co
mc freq, raised the IF gain a bit in SDR and watch for signals. You
have to change the mode you want to watch both on the SDR screen and the
K3 but otherwise it's really neat. The freq of the SDR won't change but
that's not an issue with me as i only use that as a tuning indicator
anyway. The K3 will tell you where your at in the spectrum anyway. Btw,
the 8215.30 mc IS freq is possibly particular to my unit and not yours.
What i did was tune in a CW station, then hit the spot button. Mine is
set for 700 cycles. Then i adjusted the IF freq on the SDR display till
the signal was centered on the 700 cycle line in cw mode. Kool stuff
indeed.


Larry
W0OGH






On 3/21/2017 1:35 AM, 'Terry B.' g0tmx@btinternet.com [Elecraft_K3] wrote:

Hi Gang..

I would like to set up an external SDR Rx (SDR Play) to use as a
bandscope on my K3..

I have both an IF Output, and RX Antenna In/Out ports on the Elecraft..

I’m just enquiring if anyone has done this and can comment on which
port on the K3 is best to use, to avoid damage to either radio,
especially when the K3 transmits..

73 de Terry, G0TMX,

Loc: JO02if WAB: TL86,

Bury St Edmunds, Suffolk, UK.

FISTS #1862 CC1645.

DMR ID – 2352764.





K3 K3s CW Filter for Sale

kenw817821@...
 

Elecraft KFL3A-200 shipped to your US address $60.

Ken K5WK


Re: [Elecraft_K3] using P3 with other rigs

Rob Sherwood
 

I used a P3 on a Drake R-4C, and the 5645 kHz IF was already programmed into the P3.

Rob

NC0B

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Thursday, March 23, 2017 1:06 PM
To: Elecraft_K3@...
Subject: RE: [Elecraft_K3] using P3 with other rigs

 

 

I believe the P3 can accept any IF from the old 455 kHz up to 21 MHz, but you should verify that on the Elecraft site.

 

How wide a portion of the spectrum you can view is determined by what comes out of the radio.

Obviously, you can look at any more than the width of the IF out signal.

 

73, Charlie k3ICH

 

 

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Thursday, March 23, 2017 11:22 AM
To: Elecraft_K3@...
Subject: [Elecraft_K3] using P3 with other rigs

 

 

I am thinking of getting a P3 to use on the IF output of my FTDX-3000

Is anyone using the P3  in this  manner, and if so how is it working out for you ?

thanks   "Rich" W9CIN

 


If this email is spam, report it to www.OnlyMyEmail.com


Re: [Elecraft_K3] External SDR for Bandscope..

Larry
 

I hooked my SDRplay/SDRUNO up to the IF output, tuned it to the 8.215.co mc freq, raised the IF gain a bit in SDR and watch for signals.  You have to change the mode you want to watch both on the SDR screen and the K3 but otherwise it's really neat.  The freq of the SDR won't change but that's not an issue with me as i only use that as a tuning indicator anyway. The K3 will tell you where your at in the spectrum anyway.  Btw, the 8215.30 mc IS freq is possibly particular to my unit and not yours.  What i did was tune in a CW station, then hit the spot button.  Mine is set for 700 cycles.  Then i adjusted the IF freq on the SDR display till the signal was centered on the 700 cycle line in cw mode.  Kool stuff indeed.

Larry
W0OGH



On 3/21/2017 1:35 AM, 'Terry B.' g0tmx@... [Elecraft_K3] wrote:
 

Hi Gang..

 

I would like to set up an external SDR Rx (SDR Play) to use as a bandscope on my K3..

 

I have both an IF Output, and RX Antenna In/Out ports on the Elecraft..

 

I’m just enquiring if anyone has done this and can comment on which port on the K3 is best to use, to avoid damage to either radio, especially when the K3 transmits..

 

73 de Terry, G0TMX,

Loc: JO02if WAB: TL86,

Bury St Edmunds, Suffolk, UK.

FISTS #1862 CC1645.

DMR ID – 2352764.

 

 



Re: [Elecraft_K3] using P3 with other rigs

Charlie T, k3ICH
 

That was supposed to be “You CAN’T look at…..”

 

Sorry, I wasn’t paying attention.

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Thursday, March 23, 2017 3:06 PM
To: Elecraft_K3@...
Subject: RE: [Elecraft_K3] using P3 with other rigs

 

 

I believe the P3 can accept any IF from the old 455 kHz up to 21 MHz, but you should verify that on the Elecraft site.

 

How wide a portion of the spectrum you can view is determined by what comes out of the radio.

Obviously, you can look at any more than the width of the IF out signal.

 

73, Charlie k3ICH

 

 

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Thursday, March 23, 2017 11:22 AM
To: Elecraft_K3@...
Subject: [Elecraft_K3] using P3 with other rigs

 

 

I am thinking of getting a P3 to use on the IF output of my FTDX-3000

Is anyone using the P3  in this  manner, and if so how is it working out for you ?

thanks   "Rich" W9CIN


Re: [Elecraft_K3] using P3 with other rigs

Charlie T, k3ICH
 

I believe the P3 can accept any IF from the old 455 kHz up to 21 MHz, but you should verify that on the Elecraft site.

 

How wide a portion of the spectrum you can view is determined by what comes out of the radio.

Obviously, you can look at any more than the width of the IF out signal.

 

73, Charlie k3ICH

 

 

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Thursday, March 23, 2017 11:22 AM
To: Elecraft_K3@...
Subject: [Elecraft_K3] using P3 with other rigs

 

 

I am thinking of getting a P3 to use on the IF output of my FTDX-3000

Is anyone using the P3  in this  manner, and if so how is it working out for you ?

thanks   "Rich" W9CIN


K3 to SPE 1.3

Paul Booth
 

 
Does anyone know if this cable arrangement will work between a K3 and SPE 1.3 linear?
 
 
Thanks.
 
Paul, W6IBU

7861 - 7880 of 35759