Date   

Re: K3s failing to RX on 160m and now 15m

barry NF1O
 

did the rx antenna accidentally get selected? that has happened to me before.

barry

NF1O




From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> on behalf of Chris G8AJM via Groups.Io <g8ajm@...>
Sent: Saturday, March 24, 2018 2:23 AM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] K3s failing to RX on 160m and now 15m
 

I’ve had my K3s for a couple of years and have been very pleased with it. I use a KPA500, a P3 and the ATU.  I have always noticed that the noise level on 15m is much less than on other bands but never investigated as to why that is.  I have also never used it on 160m as I have no antenna for the band and was focussed on HF.

Recently in an idle moment while portable I switched to 160m and realised I could hear nothing at all using an 80m dipole.  I would have expected at least some noise, but silence.  Attaching a dummy load I determined I could transmit but nothing as far as RX concerned. I bypassed the ATU and PA500 and went straight into the K3 (both ANT sockets) and still nothing.  I decided I’d sort it out another day as not that fussed about 160m.

However just recently, 15m seems to have gone the same way. I seem have a very low noise floor way below S0 on the P3 and I receive nothing but it still transmits. Again it seems to be the K3 and not the ATU or PA500 signal routing.

I’d be very grateful for any thoughts as to what this might be as 15m, apart from always seeming to be “a bit down” has worked fine until now. All other bands seem good. I don’t have a sub-RX.

73 Chris G8AJM



K3s failing to RX on 160m and now 15m

Chris G8AJM
 

I’ve had my K3s for a couple of years and have been very pleased with it. I use a KPA500, a P3 and the ATU.  I have always noticed that the noise level on 15m is much less than on other bands but never investigated as to why that is.  I have also never used it on 160m as I have no antenna for the band and was focussed on HF.

Recently in an idle moment while portable I switched to 160m and realised I could hear nothing at all using an 80m dipole.  I would have expected at least some noise, but silence.  Attaching a dummy load I determined I could transmit but nothing as far as RX concerned. I bypassed the ATU and PA500 and went straight into the K3 (both ANT sockets) and still nothing.  I decided I’d sort it out another day as not that fussed about 160m.

However just recently, 15m seems to have gone the same way. I seem have a very low noise floor way below S0 on the P3 and I receive nothing but it still transmits. Again it seems to be the K3 and not the ATU or PA500 signal routing.

I’d be very grateful for any thoughts as to what this might be as 15m, apart from always seeming to be “a bit down” has worked fine until now. All other bands seem good. I don’t have a sub-RX.

73 Chris G8AJM



Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Max NG7M
 

I just posted another 4K video showing RTTY diddle timings.  Maybe a bit off topic, but it's a follow up to the tutorial I did on setting up FSK with MMTTY and the K3/K3S:

https://www.youtube.com/watch?v=FN0SlOHcMQw

Max NG7M


Re: KPA 1500

southdaleus
 

None that I am aware of.

Dale, K9VUJ




  

On 22, Mar 2018, at 8:37, n2tu via Groups.Io <n2tu@...> wrote:

Is there a separate Google Group for the KPA 1500? I did a search and did not find one...

73

Lou N2TU


Ris: [Elecraft-K3] Help Checking out a used K3

IK4EWX
 

Xg3 signal, 50uV to the radio .
If K3 s-meter is S9 the k3 is ok.
Without attenuator or preamplifier, obviously.
On low dx signals use the agc setting THR 15 for discriminating them out of che noise.
On local or strong signals use THR 7.
Ian IK4EWX


-------- Messaggio originale --------
Oggetto: [Elecraft-K3] Help Checking out a used K3
Da: Eric Rosenberg
A: Elecraft-K3@groups.io
CC:


Maybe it’s the lousy propagation, but it seems to me that the new-to-me K3 I have isn’t performing quite up to snuff.

 

I’d like to run a couple of tests to determine whether I need to send the rig to Elecraft.

 

Other than running an A/B test with another radio, the only test gear I have is an Elecraft XG-3 RF Signal source.

 

Are there test or a series of tests I can run?

 

Thanks, & 73,

 

Eric W3DQ

 

 

 


KPA 1500

n2tu
 

Is there a separate Google Group for the KPA 1500? I did a search and did not find one...

73

Lou N2TU


Re: Help Checking out a used K3

Bill Maddock
 

Last Friday i went out to shack and turned on my K3 and thought something was wrong. Signals were way down, like S1 to S2. By that evening they were pretty much back up to normal. Honestly i really thought something was wrong with the radio. Id check it again.

73 de Bill N4ZI Munford, TN


On Wed, Mar 21, 2018 at 8:56 PM, Eric Rosenberg
<ericrosenberg.dc@...> wrote:

Maybe it’s the lousy propagation, but it seems to me that the new-to-me K3 I have isn’t performing quite up to snuff.

 

I’d like to run a couple of tests to determine whether I need to send the rig to Elecraft.

 

Other than running an A/B test with another radio, the only test gear I have is an Elecraft XG-3 RF Signal source.

 

Are there test or a series of tests I can run?

 

Thanks, & 73,

 

Eric W3DQ

 

 

 


Help Checking out a used K3

Eric Rosenberg W3DQ
 

Maybe it’s the lousy propagation, but it seems to me that the new-to-me K3 I have isn’t performing quite up to snuff.

 

I’d like to run a couple of tests to determine whether I need to send the rig to Elecraft.

 

Other than running an A/B test with another radio, the only test gear I have is an Elecraft XG-3 RF Signal source.

 

Are there test or a series of tests I can run?

 

Thanks, & 73,

 

Eric W3DQ

 

 

 


thanks

Bruce Beford N1RX
 

...for the transfer from Yahoo. Here's my first message to the new group, to "prime the pump", and get off the auto-moderation.
73,
Bruce N1RX


Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Don Jones
 

Saving this message as a must have. Thank you es vy 73.

Don Jones KO7i 

Sent via my wireless cell phone.


R: Re: [Elecraft-K3] Looking for KXV3A

Tiziano Christen
 

Hi Stephen.  I sent you a mail on your qrz.com adress

73

Tiziano 



Inviato dal mio dispositivo Samsung


-------- Messaggio originale --------
Da: Stephen Zumbrun <w0sz@...>
Data: 20/03/18 14:26 (GMT+01:00)
A: Elecraft-K3@groups.io
Oggetto: Re: [Elecraft-K3] Looking for KXV3A

I have one. W0SZ


Re: K-pod & P3

ke9uw
 

I and K9JRI wonder what the 6P6C jack under the right front of the P3 is for.

Chuck Jack
KE9UW

Sent from my iPhone, cjack


Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Max NG7M
 

Thanks for the comments everyone.  Ed, I hope the detail isn't too over the top, but it will be a good reference when someone might struggle with the setup. Tony, thanks for posting the video on your site, much appreciated.  I do hope the video will help a lot of guys out over time.

Also, Joe and David, thanks for the comments on the USB/Serial port generated timings.  My goal wasn't to start a thread on measured timings generated by a USB serial port line as compared to the timings using a sound card with AFSK.  However,  you guys did get me motivated to get my scope out and do some testing.  Another video is in the works that will show a live demo of the timing and jitter.  The demo will be based on a setup with Intel's latest and greatest consumer grade CPU, the Coffee Lake 8700K (Windows 10 64bit) using a VSCOM 8 port external USB FTDI chipset box.  I will have a lot of load on 6 of the serial ports while showing the 45 baud 22ms timing on a scope generated by the 7th COM port where everything is all handled via one USB connection.

Give me a few days and I'll get that video posted.  I think it will be pretty interesting and create some good discussion. Let's keep it all objective and useful.   Max NG7M


Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Anthony Luscre
 

Thanks for very thorough video Max.

I have a link to it on 3 pages on my website


On Tue, Mar 20, 2018 at 12:42 PM, Max NG7M <ng7m@...> wrote:
Hi Everyone, I finally got around to creating a Tutorial Video that goes through the details of setting up N1MM+ with MMTTY for FSK.  Over the years I have spent a lot of time helping other local guys setup FSK with their Elecraft K3/S setups.  It becomes a rhetorical conversation it seems from one RTTY operating event / contest.  Inevitably guys will call and want help to set things up after they have made local changes etc...  there seems to be a disconnect on how you use serial lines for PTT and FSK keying from MMTTY or other RTTY software apps.

The following video I created is very verbose and may not be for everyone.  I focus on setting up FSK with MMTTY along with the PTT/FSK keying interface with the K3/S.  I then go into the basic configuration in N1MM+.  And yes, it goes into painful detail at times, and I even expose and correct my own mistakes along the way (SO2V for example).  The video is 1 hour and 55 minutes in length... No longer will I need to send hours helping guys re-setup their MMTTY config and N1MM+ (well hopefully!).  I can send them the video for reference.

I hope others may find this useful and can share it with others that struggle with setting up their K3/S for FSK / MMTTY and N1MM+.  Just skip around to sections you are interested etc... (speed up or slow down the video in YouTube) I made the video during the BARTG RTTY contest so I would be able to easily do some life contacts.  I think it is good / verbose overview of an FSK setup starting point.  If you understand all of the concepts in the video, then you can take things to another level.

Here is the direct link on YouTube: https://www.youtube.com/watch?v=EToCJ5GeZSE

Max NG7M




--
Anthony Luscre

K8ZT
Assistant Ohio Section Manager for Education Outreach
ARRL - The National Association For Amateur Radio™
 
a@... (best for Education & Technology)
k8zt@... (best for Amateur Radio)

The Web Resource Hoarder- www.ZTLearn.com
Web Resource Hoarder Blog

K8ZT Radio Website- www.k8zt.com
My Radio Blog- k8zt.blogspot.com


Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Ed Muns, W0YK
 

Thanks, Max!  This is certainly a detailed video.  If someone can't get FSK working on their K3/K3S, they weren't paying attention.

Ed W0YK


Re: K-pod & P3

Mike Flowers
 

When I put my K-Pod into operation, I tried a few P3 macros with the K-Pod function keys, but they did not work.    I was told by Elecraft  that the P3 and/or K3 firmware would need to be updated to implement this function.

I also have a PigKnob which is between my PC and the P3, and I use it for my P3 macros ...


73 de Mike, K6MKF - Director & Past President, NCDXC

On Tue, Mar 20, 2018 at 10:01 AM, Jim Douglass <ham@...> wrote:
Can the K-pod be programmed to operate the P3 functions also?

73,
Jim AC0E
DM97nx



Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

Joe Subich, W4TV
 

On 3/20/2018 5:09 PM, David G3YYD via Groups.Io wrote:
Please note that using radio based FSK by using a COM port results in
timing jitter.
This is *only true* if the COM port is being used for "bit flipped" FSK
using either the false FSK mode in 2Tone, EXTFSK/EXTFSK64 in MMTTY or
"Software Generated FSK" in WriteLog. If the software is configured to
use the *hardware timing* in a true serial port UART or an external
hardware FSK generator like that in microHAM "Keyer" interfaced or
"TinyFSK" there will be no "jitter".

"Jitter" is generated by two actions ... 1) the inherent delay in servicing interrupts by a non-realtime operating system (e.g. Windows,
LINUX, etc.) or 2) delays caused by the "slot time" mechanism in the
Universal Serial Bus systems (when the COM port is a USB to serial
converter).

Any software that properly uses the hardware generated bit clock and
paces data to the FSK device at one character every 7.5 bit periods
will generate jitter free FSK.

Windows has one issue ... it can set the hardware bit clock in only
integer rates. That means the old style serial port will actually
generate 45 baud (22.22 ms bits) RTTY instead of 45.45 baud. Both the
microHAM "Keyer" interfaces and the Tiny2 FSK generators (as well as
the obsolete KAM, PK-232, etc.) avoid the "integer" limitation by
aliasing 45 baud to 45.45 (22.00 ms bits) baud internally.

I find it rather disingenuous that a software developer who writes FSK
code that uses software generated timing even with a hardware serial
port would then complain about the resulting jitter rather than write
FSK drivers that would use the available hardware properly!


73,

... Joe, W4TV


On 3/20/2018 5:09 PM, David G3YYD via Groups.Io wrote:
Please note that using radio based FSK by using a COM port results in timing jitter. This is a sub-optimum result. The reason is that Windows is not a real time operating system so it causes some bits timing to be long and other to be short. This will cause decode errors at the far end.
The better system is to use AFSK. The timing for this comes from the sound card’s crystal clock. The result is a jitter free system and with the K3/S AFSK filter turned on produces an excellent signal. With MMTTY do not accept the transmit default settings which is a 48 tap transmit filter set it to 512 tap. The 48 tap is too wide a bandwidth.
If you use other data modes and/or PC voice keying then you will already have the sound card wired to the K3 via its line in so there is no extra cost.
73 David G3YYD
From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Max NG7M
Sent: 20 March 2018 16:42
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video
Hi Everyone, I finally got around to creating a Tutorial Video <https://www.youtube.com/watch?v=EToCJ5GeZSE> that goes through the details of setting up N1MM+ with MMTTY for FSK. Over the years I have spent a lot of time helping other local guys setup FSK with their Elecraft K3/S setups. It becomes a rhetorical conversation it seems from one RTTY operating event / contest. Inevitably guys will call and want help to set things up after they have made local changes etc... there seems to be a disconnect on how you use serial lines for PTT and FSK keying from MMTTY or other RTTY software apps.
The following video <https://www.youtube.com/watch?v=EToCJ5GeZSE> I created is very verbose and may not be for everyone. I focus on setting up FSK with MMTTY along with the PTT/FSK keying interface with the K3/S. I then go into the basic configuration in N1MM+. And yes, it goes into painful detail at times, and I even expose and correct my own mistakes along the way (SO2V for example). The video is 1 hour and 55 minutes in length... No longer will I need to send hours helping guys re-setup their MMTTY config and N1MM+ (well hopefully!). I can send them the video for reference.
I hope others may find this useful and can share it with others that struggle with setting up their K3/S for FSK / MMTTY and N1MM+. Just skip around to sections you are interested etc... (speed up or slow down the video in YouTube) I made the video during the BARTG RTTY contest so I would be able to easily do some life contacts. I think it is good / verbose overview of an FSK setup starting point. If you understand all of the concepts in the video, then you can take things to another level.
Here is the direct link <https://www.youtube.com/watch?v=EToCJ5GeZSE> on YouTube: https://www.youtube.com/watch?v=EToCJ5GeZSE
Max NG7M


K-pod & P3

Jim Douglass <ham@...>
 

Can the K-pod be programmed to operate the P3 functions also?

73,
Jim AC0E
DM97nx


Re: NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

David G3YYD
 

Please note that using radio based FSK by using a COM port results in timing jitter. This is a sub-optimum result. The reason is that Windows is not a real time operating system so it causes some bits timing to be long and other to be short. This will cause decode errors at the far end.

 

The better system is to use AFSK. The timing for this comes from the sound card’s crystal clock. The result is a jitter free system and with the K3/S AFSK filter turned on produces an excellent signal. With MMTTY do not accept the transmit default settings which is a 48 tap transmit filter set it to 512 tap. The 48 tap is too wide a bandwidth.

 

If you use other data modes and/or PC voice keying then you will already have the sound card wired to the K3 via its line in so there is no extra cost.

 

73 David G3YYD

 

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Max NG7M
Sent: 20 March 2018 16:42
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] NG7M's FSK RTTY Tutorial & Setup for Elecraft K3/K3S N1MM+ / 4K YouTube Video

 

Hi Everyone, I finally got around to creating a Tutorial Video that goes through the details of setting up N1MM+ with MMTTY for FSK.  Over the years I have spent a lot of time helping other local guys setup FSK with their Elecraft K3/S setups.  It becomes a rhetorical conversation it seems from one RTTY operating event / contest.  Inevitably guys will call and want help to set things up after they have made local changes etc...  there seems to be a disconnect on how you use serial lines for PTT and FSK keying from MMTTY or other RTTY software apps.

The following video I created is very verbose and may not be for everyone.  I focus on setting up FSK with MMTTY along with the PTT/FSK keying interface with the K3/S.  I then go into the basic configuration in N1MM+.  And yes, it goes into painful detail at times, and I even expose and correct my own mistakes along the way (SO2V for example).  The video is 1 hour and 55 minutes in length... No longer will I need to send hours helping guys re-setup their MMTTY config and N1MM+ (well hopefully!).  I can send them the video for reference.

I hope others may find this useful and can share it with others that struggle with setting up their K3/S for FSK / MMTTY and N1MM+.  Just skip around to sections you are interested etc... (speed up or slow down the video in YouTube) I made the video during the BARTG RTTY contest so I would be able to easily do some life contacts.  I think it is good / verbose overview of an FSK setup starting point.  If you understand all of the concepts in the video, then you can take things to another level.

Here is the direct link on YouTube: https://www.youtube.com/watch?v=EToCJ5GeZSE

Max NG7M


Re: For Sale

Bill Maddock
 

Joe,

All right ill do it. I see you have as many lookups on qrz as i do and you have been ham for many years also.

73

Bill N4ZI MUNFORD, TN

On Tue, Mar 20, 2018 at 11:52 AM, Joe Giacobello via Groups.Io
<K2xx@...> wrote:
Bill, a cashier's check is a PITA for me.  I'll send a personal check and you can hold shipment till it clears.  OK?

73, Joe

Monday, March 19, 2018 12:40 PM
Joe,

I dont have a paypal account. I prefer cashiers check. I am also good on QRZ. I can give you local 
Ham references if you would like. 

Thanks and 73,

Bill Maddock Munford TN N4ZI