Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

2018-02-11 Thread Bob McGraw K4TAX
I concur with Jim's comments on loss.   I view one should always look at 
the component which contributes the greatest loss in the system,  that 
is most often the feedline.  One should strive to improve the condition 
by using a line type of less loss.  {i.e. better quality feed line} and 
eliminate excessive feed line lengths.    Factors influencing line  
losses are; type of line, age of the line, length of line, frequency and 
reflected power. Manufactures produce charts and tables showing loss of 
a specific type of line taking into consideration of length and 
frequency. These numbers are for new or known good line and not likely 
"hamfest" bargain line.


A second component which often contributes significant loss is the all 
famous "antenna tuner".    Recent tests show some tuners, under some 
load conditions can contribute up to 25% of added loss or more.   And 
while at the same time, the loss in the feedline remains the same.


This brings me to the point where I view many hams obsess over SWR 
values.  Unless the transmitter is folding back power, as many 
un-necessarily do, then the use of the ATU may benefit making the 
transmitter happy, but at the sacrifice of added loss to the system.  To 
that end, there are several brands and models of radios, past and 
present, that do not fold back power with reasonable SWR values.  I find 
it not at all uncommon to operate with a 3:1 SWR without issues.  In 
this configuration, adding the ATU makes the SWR to the radio look 
better, but adds loss induced by the tuner and does not change the loss 
in the feed line.


There is an interesting compilation of data on various match boxes i.e. 
ATU's  and their performance found on the following link.   The compiled 
information and data is from various sources and presented in XLS format.


http://www.dj0ip.de/antenna-matchboxes/matchbox-shoot-out/

73

Bob, K4TAX




On 2/11/2018 10:25 PM, Jim Brown wrote:
Thanks for this excellent post, Alan! IMO, "mismatch loss" is a 
figment of the imagination of those who never get outside the lab. 
Transmission lines was one of my favorite EE courses, and I never 
heard of it until I heard it referenced in online discussions a few 
years ago. And the purported losses in connectors are an urban legend 
with almost basis in fact. Several years ago, W8JI poetically observed 
that if the 1 dB loss falsely attributed to UHF connectors was true, 
each would be burning 35 W carrying a legal limit signal, and be 
starting fires!


Keeping track of losses in systems is, of course, a great thing. Our 
FD group runs (and has won several times) FD 1A QRP Battery. Every 
piece of coax in our station is low loss RG8 or RG11.


73, Jim K9YC

On 2/11/2018 8:03 PM, Alan wrote:

Hi Al,

Yes, but don't forget that the connector "loss" is a mismatch loss, 
not absorptive power loss.  In other words, it affects the SWR 
slightly but does not actually absorb any power.


If you are using any kind of antenna tuner and tuning for 1:1 SWR, 
mismatch "losses" have no effect.  Even if you aren't doing that, the 
antenna is probably not a perfect 50-ohm resistive load anyway, so 
the connectors' mismatches are about as likely to make the SWR better 
as worse, depending on the phase and magnitude.


But the general point is sound.  Power loss is even more important 
for QRP than for QRO even though the  number of watts of loss is 
less.  When the other station can barely hear you, every dB counts!

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rmcg...@blomand.net



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

2018-02-11 Thread Jim Brown
Thanks for this excellent post, Alan! IMO, "mismatch loss" is a figment 
of the imagination of those who never get outside the lab. Transmission 
lines was one of my favorite EE courses, and I never heard of it until I 
heard it referenced in online discussions a few years ago. And the 
purported losses in connectors are an urban legend with almost basis in 
fact. Several years ago, W8JI poetically observed that if the 1 dB loss 
falsely attributed to UHF connectors was true, each would be burning 35 
W carrying a legal limit signal, and be starting fires!


Keeping track of losses in systems is, of course, a great thing. Our FD 
group runs (and has won several times) FD 1A QRP Battery. Every piece of 
coax in our station is low loss RG8 or RG11.


73, Jim K9YC

On 2/11/2018 8:03 PM, Alan wrote:

Hi Al,

Yes, but don't forget that the connector "loss" is a mismatch loss, 
not absorptive power loss.  In other words, it affects the SWR 
slightly but does not actually absorb any power.


If you are using any kind of antenna tuner and tuning for 1:1 SWR, 
mismatch "losses" have no effect.  Even if you aren't doing that, the 
antenna is probably not a perfect 50-ohm resistive load anyway, so the 
connectors' mismatches are about as likely to make the SWR better as 
worse, depending on the phase and magnitude.


But the general point is sound.  Power loss is even more important for 
QRP than for QRO even though the  number of watts of loss is less.  
When the other station can barely hear you, every dB counts!

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

2018-02-11 Thread Alan

Hi Al,

Yes, but don't forget that the connector "loss" is a mismatch loss, not 
absorptive power loss.  In other words, it affects the SWR slightly but 
does not actually absorb any power.


If you are using any kind of antenna tuner and tuning for 1:1 SWR, 
mismatch "losses" have no effect.  Even if you aren't doing that, the 
antenna is probably not a perfect 50-ohm resistive load anyway, so the 
connectors' mismatches are about as likely to make the SWR better as 
worse, depending on the phase and magnitude.


But the general point is sound.  Power loss is even more important for 
QRP than for QRO even though the  number of watts of loss is less.  When 
the other station can barely hear you, every dB counts!


Alan


On 02/11/2018 11:49 AM, Al Lorona wrote:

Excellent. Thank you, Alan. Data for this particular measurement are very 
difficult to find on the web -- of course it took an ex-HP guy to do it!

Times Microwave (a manufacturer of coaxial cable) says 0.01 dB per UHF 
connector pair (PL-259-to-SO-239) at HF; I have seen other private measurements 
that estimate 0.02 dB; and now this data from N1AL. I usually take the greater 
of these, 0.02 dB, as a worst-case number. But Alan's measurements pretty much 
show that the loss at HF is almost too small to measure-- even if he had 
performed a full two-port cal.

Even so, you might be surprised to see how quickly it can add up. Beginning at 
the transmitter output (or receiver input) it is not uncommon to find 20 or 
more UHF connections in the path to the antenna. Using the 0.02 dB worst-case 
figure, that's at least 0.4 dB, or 9% of your power. I wouldn't worry about 
that but I know there are folks on here that would be bothered by that.

This, of course, is not counting loss in cables, filters, lightning arrestors, 
power meters, bulkheads, switches, antenna tuners, baluns, amplifier 
through-paths, transmission lines, etc. These can add another dB or more to the 
total and far outweigh any loss in UHF connectors. If you want to minimize 
losses, UHF connectors are the last thing you should worry about.

I encourage you to do an analysis to determine your system efficiency. I 
recently did so and discovered that I have a worst-case loss (to the feedpoint 
up at the antenna) of 1 dB, which is 21% of my power. Gone. Forever. Whoosh!


Al  W6LX


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Data modes changing in K3

2018-02-11 Thread Nr4c
Check n1mm digital mode settings. 


Sent from my iPhone
...nr4c. bill


> On Feb 11, 2018, at 8:33 PM, Tony Osman  wrote:
> 
> Not sure if this is an elecraft issue or a N1MM+ issue, so I will pose the 
> question in both groups.  I noticed this weekend in the CQWPX RTTY contest, 
> that everytime I changed frequency by some action on the pc (N1MM+) the 
> frequency would change correctly, but each time the data mode would switch 
> from the AFSK A mode that I had selected to FSK mode.  I would then have to 
> change it manually each time.
> 
> Any ideas?
> 
> -- 
> Tony
> VE3RZ
> 
> www.tonysturnings.com 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n...@widomaker.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Elecraft CW Net Report

2018-02-11 Thread kevinr

Good Evening,

   On 14049.5 kHz at 2300z:

NO8V - John - MI

W0CZ - Ken - ND

K4JPN - Steve - GA

K6XK - Roy - IA

KL7CW - Rick - AK


   On 7045 kHz at 0100z:

K6PJV - Dale - CA

KG7V - Marv - WA  -- Thanks for the relay Dale

K0DTJ - Brian - CA

K1SM - Bill - MA   -- this one was ESP so K&1 are pretty sure as is the 
S after that I have little confidence.


W0CZ - Ken - ND

AE6JV - Bill - CA


73,

   Kevin.  KD5ONS


-

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] Data modes changing in K3

2018-02-11 Thread Tony Osman
Not sure if this is an elecraft issue or a N1MM+ issue, so I will pose 
the question in both groups.  I noticed this weekend in the CQWPX RTTY 
contest, that everytime I changed frequency by some action on the pc 
(N1MM+) the frequency would change correctly, but each time the data 
mode would switch from the AFSK A mode that I had selected to FSK mode.  
I would then have to change it manually each time.


Any ideas?

--
Tony
VE3RZ

www.tonysturnings.com 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] Sub RX Deaf??

2018-02-11 Thread GWK

Chris,
When I built my K3 years ago, the Sub-Rx didn't work.  I found I had 
plugged the synthesizer module (KSYN3 at that time) into its socket just 
one pin off - very hard to see.  Corrected it and never looked back. 
Fortunately, no damage to the synthesizer in doing this.

So maybe?
George, W3HBM

On 2/11/2018 3:43 PM, Chris Soames wrote:
Hi Just fitted SubRx into my K3 nothing heard only background noise, no 
matter what ant configuration or other setting,

SubRx appears to be deaf?

Oh dear where to next?

Chris G0TZZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to gkid...@ilstu.edu

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Sub RX Deaf??

2018-02-11 Thread Michael Eberle

You didn't forget to enable it in the CONFIG menu did you?

Mike - KI0HA


On 2/11/2018 14:43, Chris Soames wrote:
Hi Just fitted SubRx into my K3 nothing heard only background noise, 
no matter what ant configuration or other setting,

SubRx appears to be deaf?

Oh dear where to next?

Chris G0TZZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to mtebe...@mchsi.com



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Sub RX Deaf??

2018-02-11 Thread RIchard Williams via Elecraft
 Chris,
First make sure you have your filter configuration set correctly (including 
offsets, etc).   I highly recommend you use the K3 Utility to Configure the 
Crystal filters.  You didn't mention how you set up your K3 as far as antenna 
input to the sub receiver.  I use the BNC connector on the back of the K3.  A 
couple times when I found the sub receiver deaf, it was a matter of "operator 
error" with one of my big paws "holding" rather than tapping toe RX Antenna 
button.  The net affect of that is switching the input from Main to Aux.  A 
quick push and hold of the RX Antenna button to go back to Main does wonders to 
fix that issue!!!   Also, make sure you have the KRX3 option in the 
Configuration Menu set correctly (mine is set to Ant-bnc).
Good luck finding the probem
Dick, K8ZTT
On Sunday, February 11, 2018, 1:43:45 PM MST, Chris Soames 
 wrote:  
 
 Hi Just fitted SubRx into my K3 nothing heard only background noise, no 
matter what ant configuration or other setting,
SubRx appears to be deaf?

Oh dear where to next?

Chris G0TZZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to richarddw1...@yahoo.com
  
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] P3 SVGA interference -

2018-02-11 Thread Don Wilhelm

Mike,

I don't think I have seen this as a suggestion so far in the thread.

It is important that you dress the cables for the SVGA option exactly as 
shown in the installation manual.

If they do not want to stay in place, use a ty-wrap around the cables.

73,
Don W3FPR

On 2/11/2018 12:50 PM, mjpilgrim wrote:

I am almost overwhelmed by all the very thoughtful suggestions.  Here's what
I know so far.

I had previously performed the idea of turning off all items in the room
except for the radio and P3, but the reported symptom remains.  I then
switched my antenna switch to the grounded position, and the problem goes
away. Now my suspicion is that my rfi is created from outside my
house.  My antenna system consists of two end fed long wires, 90% opposed to
each other, and a minimal vertical out behind the house.


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] KFL3A-400

2018-02-11 Thread doug dietz
Guys
I have a new never out of the package KFL3A-400 excess to my needs.  I would 
like to trade for either KFL3C-200 or a 
KFL3A-250 the other option would be to sell it.  I would like 150.00 and I will 
ship

Doug WD8Z doug49...@gmail.com

Sent from Mail for Windows 10

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

2018-02-11 Thread Bill Frantz
The losses pile up for those running QRP or QRPP. I have 
frequently thought that a QRP system which has the final 
amplifier at the feed point of the antenna would be very attractive.


A crude way of accomplishing a feed point amp would be to take a 
radio like the Rockmite and place it at the feed point. If you 
run the Rockmite with a 9V battery, all you just need wires for 
the paddle and the headphones.


The big problem as I see it is weight at the feed point. In 
theory, you could handle the whole operation with a RG-174 feed 
line. Run DC power on the feed line, and have the feedpoint 
electronics switch between transmit and receive depending on the 
signal level on the coax.


But this is just another of the projects lined up to fill the 
time when I'm not operating.


73 Bill AE6JV

On 2/11/18 at 11:49 AM, alor...@sbcglobal.net (Al Lorona) wrote:

I encourage you to do an analysis to determine your system 
efficiency. I recently did so and discovered that I have a 
worst-case loss (to the feedpoint up at the antenna) of 1 dB, 
which is 21% of my power. Gone. Forever. Whoosh!


---
Bill Frantz| Re: Computer reliability, performance, and security:
408-356-8506   | The guy who *is* wearing a parachute is 
*not* the

www.pwpconsult.com | first to reach the ground.  - Terence Kelly

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Sub RX Deaf??

2018-02-11 Thread Chris Soames
Hi Just fitted SubRx into my K3 nothing heard only background noise, no 
matter what ant configuration or other setting,

SubRx appears to be deaf?

Oh dear where to next?

Chris G0TZZ
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] AF-1

2018-02-11 Thread Stewart

Thanks Eric

73

Stew ke4yh


On 2/11/2018 2:43 PM, eric norris via Elecraft wrote:



I don't know what the impedance is, but the AF-1 works great with an HW-8.  
Also an HR-1661.  In my experience, it's mandatory!
73 Eric WD6DBMSent from Yahoo Mail on Android
__




---
This email has been checked for viruses by AVG.
http://www.avg.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

2018-02-11 Thread Al Lorona
Excellent. Thank you, Alan. Data for this particular measurement are very 
difficult to find on the web -- of course it took an ex-HP guy to do it!

Times Microwave (a manufacturer of coaxial cable) says 0.01 dB per UHF 
connector pair (PL-259-to-SO-239) at HF; I have seen other private measurements 
that estimate 0.02 dB; and now this data from N1AL. I usually take the greater 
of these, 0.02 dB, as a worst-case number. But Alan's measurements pretty much 
show that the loss at HF is almost too small to measure-- even if he had 
performed a full two-port cal.

Even so, you might be surprised to see how quickly it can add up. Beginning at 
the transmitter output (or receiver input) it is not uncommon to find 20 or 
more UHF connections in the path to the antenna. Using the 0.02 dB worst-case 
figure, that's at least 0.4 dB, or 9% of your power. I wouldn't worry about 
that but I know there are folks on here that would be bothered by that.

This, of course, is not counting loss in cables, filters, lightning arrestors, 
power meters, bulkheads, switches, antenna tuners, baluns, amplifier 
through-paths, transmission lines, etc. These can add another dB or more to the 
total and far outweigh any loss in UHF connectors. If you want to minimize 
losses, UHF connectors are the last thing you should worry about.

I encourage you to do an analysis to determine your system efficiency. I 
recently did so and discovered that I have a worst-case loss (to the feedpoint 
up at the antenna) of 1 dB, which is 21% of my power. Gone. Forever. Whoosh!


Al  W6LX





___

 - Type N    -- UHF --

FREQ (MHz)  TOTAL  LOSS PER CONNECTOR   TOTAL  LOSS PER CONNECTOR

1.8 0 dB   0 dB 0 dB   0 dB

30  0  00  0
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] AF-1

2018-02-11 Thread eric norris via Elecraft

Can someone tell me what the input impedance of the AF-1 is? I am 
looking for something to use with a Heathkit HW-8 which has about a 1K 
output impedance.

I don't know what the impedance is, but the AF-1 works great with an HW-8.  
Also an HR-1661.  In my experience, it's mandatory!
73 Eric WD6DBMSent from Yahoo Mail on Android
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] P3 SVGA interference -

2018-02-11 Thread mjpilgrim
Somehow I managed to lose my last post describing the attached photo. 
suffice to say my Span is set for 14.000-14.104MHZ and my cursor is tuned to
14.029, but notice that the baseline noise level while near S-2 across most
of the band, shows a hump back at the center of the screen and the waterfall
depicts the width of the distortion.  Anyone with any suggestion beyond what
I have offered, I'm all ears.  Note that this phenom. occurs only on 20
Meters.

Thanks,
Mike K5MP  



--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] WTB KIO3 Audi IO Module

2018-02-11 Thread dgb

KIO3 Digital board (Rev B or C or anything newer than XD)

Please state wanted price and method of payment desired shipped to 28734

TIA 73 Dwight NS9I

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] AF-1 audio filter

2018-02-11 Thread Stewart
Can someone tell me what the input impedance of the AF-1 is? I am 
looking for something to use with a Heathkit HW-8 which has about a 1K 
output impedance.


Thanks,

Stew ke4yh



---
This email has been checked for viruses by AVG.
http://www.avg.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] KFL3A-400

2018-02-11 Thread doug dietz
Guys
I have a new in the package KFL3A-400hz filter.  I would like to sell or
trade for a 200 or 250hz filter. Sale price is 150.00 and I ship.
Doug WD8Z  doug49...@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] P3 SVGA interference -

2018-02-11 Thread mjpilgrim
I am almost overwhelmed by all the very thoughtful suggestions.  Here's what
I know so far.

I had previously performed the idea of turning off all items in the room
except for the radio and P3, but the reported symptom remains.  I then
switched my antenna switch to the grounded position, and the problem goes
away. Now my suspicion is that my rfi is created from outside my
house.  My antenna system consists of two end fed long wires, 90% opposed to
each other, and a minimal vertical out behind the house.

The RFI from all antennas is approximately equal in amplitude as I select
them one at a time (with the vertical slightly less but I attribute that to
the relative poor receive sensitivity on that antenna.  Nonetheless, the RFI
on that antenna is quite noticeable.

I hesitate to bother for additional thoughts at this point, at least until I
can asses what possible causes external to my house might be at play, and
now to pay close attention to whether or not it changes depending on the
hour of the day.  For example, at first notice of this problem I sensed that
everything was normal until for example, the beginning of the work day.  I
soon discounted that thought however, when I realized it was happening late
at night (as was the case up until I shut down last night around 11pm).  And
it affects only 20 Meters.  All other bands are viewed normally.

Perhaps once I can capture and submit a picture for review here, someone
might be able to make a little more sense out of what I'm trying to
describe.If I can say it this way, it reminds me of a TV commercial
where folks are in a Gymnasium doing a strength regimen involving holding a
rope in each hand and making it serpentine by moving the arms up and down. 
Only that sine wave of baseline noise moves from S-2 to as high as S-7 when
using my best antenna..  I'll try to get a picture attached later
this afternoon.

Thanks for the help so far.
Mike, K5MP





--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Elecraft SSB Net

2018-02-11 Thread John W Webster
Please feel free to join the weekly Elecraft SSB Net on Sundays at 18:00z (UTC) 
on
20m at 14.303.5 or thereabouts.

Eric, WB9JNZ, sends the log of checkins from last week:

Elecraft SSB Net 2-4-2018

WB9JNZ Eric IL K3 4017 Net Control

N9VTB George IL IC7610

VA6VW Jun AB IC 7600 KPA 500

KS6F Guy CA K3S 10650

W7QHD Kurt AZ KX3 8697

N6JW John CA K3 936

NC0JW Jim CO KX3 1356

W4RKS Jim TX K3 3618

KG5PBJ Keith MS K3 7261

N4NRW Roger SC K3 1318

WM6P Steve GA K3S 11453

NS7P Phil OR K3 1826

W7REK Glenn AZ K3 2843

W1NGA Al CO KX3 2829

K6SBA David CA L3 565

W7JJL John WA KX3 993

K7JG John WA KX3 2519

 

73

John, N6JW

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Right paddle on my KXPD2 issue

2018-02-11 Thread Brian Hunt
I have experienced this too. Cleaning the contact with a small strip of paper 
helps for a while. I'm wondering if the contact closure current may be too low 
to overcome the slight surface corrosion that develops over time. 

When not in use I store the KXPD2 in the mesh pocket of the CS-40 case. 

Adjusting the contact spacing narrower allows less travel and seems to make the 
problem worse, widening it makes it better but doesn't eliminate the problem. 

73,
Brian, K0DTJ

> On Feb 11, 2018, at 05:56, Tommy  wrote:
> 
> Hi folks,
> 
>  The right paddle seems to work intermittently on my KX2 paddles. I have 
> to hit it several times to get it to work but even then it's random. I tried 
> moving the adjustment for it in a bit but it makes no difference.
> 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] New Product speculation

2018-02-11 Thread Morgan Bailey
1.) A full SO2R box that seamlessly integrates 2 K3S radios with all the
necessary cabling fully shieldied with minimal problems interfacing with
N1MM+.

2.) A band pass filter solution from 160-10 with auto switching controlled
with full automation by either pressing the band switch buttons on
different K3S or by clicking the Icon on N1MM+.

Yeah I can dream. Right now i have the MK2R+. Nice unit but really a bit of
a pain to routwall the cables necessary for the control of 2 rigs.

Because of the interface problems, I am looking at the Flex 6600 as a one
box solution and using the K3S as a back up rig. I have been underwelmed at
the 6300 as a CW radio, but it has been some years since i sat at one and
maybe the software is fixed better. Time will tell. In the end, The cost of
a second K3S/P3 is the same as the FLEX. $5k either way.

I am getting ready to retire and will be shopping hard for that final radio
for contesting full time. Money is drawing intrest in the bank and i am
just waiting for the reviews. Unfortunately the Icom 7610 is not an option,
even though i do love the ICOM line, it just does not have the performance
necessary for a CW radio in a high RF environment. I would not be much
better off buying 2 7300s and puting them with the MK2R+. Unfortunately the
selectivity and desensing is the issue. They sure do sound good on SSB but
if i wanted broadcast audio i would be running Antique Modulation.

Just my 2 sense.

Vy 73,
Morgan Bailey NJ8M
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Tuneup, Rescue, Build your K2 and others

2018-02-11 Thread Alan D . Wilcox
Hello,

Does your K2 need repair? Tuneup?
Want to sell it, but it needs some attention before offering it for sale? 

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

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

Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure --  are 
at
http://wilcoxengineering.com/kpa100-in-ec2/ 

Cheers,
Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-478-0736 (cell, text)
http://amazon.com/author/alandwilcox
Williamsport, PA 17701

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 VFO A

2018-02-11 Thread Joseph M. Durnal
Ray,

It looks like I'll be calling the parts department for a new encoder.  I
swapped A & B this morning and now A works and B doesn't.  I didn't
remember this when I built the thing but there is a surprise waiting for
you when you try to remove the front panel.  The screws on the left front
of the RF board are in the way.  I did a quick review of  the assembly
manual before attempting to remove it and some how I didn't notice  this.

It would be really cool if there was a software way to swap the controls A
& B.  I'm not sure in how many cases this would ever be useful, but this is
certainly one case.

It has been almost 10 years since the K3 had been apart, when I built it.
It is kind of hard to believe that it has been that long!

Thanks & 73 de Joseph M. Durnal - NE3R
K3 SN 01121

On Sun, Feb 11, 2018 at 9:23 AM, Raymond Sills 
wrote:

> Hi Joe:
>
>
> Well... I'd say a call to Elecraft support is in order.  Try tomorrow
> afternoon.
>
>
> BTW, this list is set for a reply to BE off-list.  Sometimes people forget
> that.  You have to manually type in the list address to have the response
> go to the list.
>
>
> 73 de Ray
> K2ULR
> KX3 #211
>
>
>
>
> -Original Message-
> From: Joseph M. Durnal 
> To: Elecraft Reflector 
> Sent: Sun, Feb 11, 2018 8:30 am
> Subject: Re: [Elecraft] K3 VFO A
>
> Please stop e-mailing me off list asking if it is locked.  No, its not
> locked.
>
> Thanks,
> J
>
> On Sat, Feb 10, 2018 at 5:23 PM, Joseph M. Durnal  >
> wrote:
>
> > My K3 VFO A knob doesn't seem to want to do anything.  It won't change
> the
> > frequency, nor will it change the settings in the menu.  My first guess
> is
> > that the encoder is bad.  VFO B works fine.  Is there any way I can
> verify
> > this before I pull the K3 apart?
> >
> > Thanks & 73 de Joseph M. Durnal - NE3R
> >
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to raysil...@verizon.net
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to joseph.dur...@gmail.com
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] Win4K3Suite mic interface question

2018-02-11 Thread Dick Dievendorff
I just bought a little USB audio adapter for my little Dell laptop from Fry’s 
in Campbell.  I’ve done no quality analysis but I have made a few FT8 QSOs with 
it.  I haven’t used it for the purpose you’ve described.

Dick, K6KR



https://www.amazon.com/Sabrent-External-Adapter-Windows-AU-MMSA/dp/B00IRVQ0F8/ref=sr_1_3?ie=UTF8&qid=1518359066&sr=8-3&keywords=sabrent+usb+audio+adapter

> On Feb 10, 2018, at 21:56, Terry Brown  wrote:
> 
> I just purchased Win4K3Suite for my KX3.  I would like to setup the spectrum
> scope, but until I can get my main pc out of storage as we wait for our new
> house to be completed, I am stuck with a Lenovo Thinkpad that has a
> combination headphone microphone plug jack.  I understand that I need a
> separate stereo usb sound interface that I can connect my RX/IQ port on the
> KX3 to the laptop computer's mic input.
> 
> 
> 
> I would appreciate any suggestions that would help me get the correct usb
> interface.
> 
> 
> 
> Thanks,
> 
> 
> 
> Terry de N7TB
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to d...@elecraft.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 VFO A

2018-02-11 Thread Raymond Sills
Hi Joe:


Well... I'd say a call to Elecraft support is in order.  Try tomorrow afternoon.


BTW, this list is set for a reply to BE off-list.  Sometimes people forget 
that.  You have to manually type in the list address to have the response go to 
the list.


73 de Ray
K2ULR
KX3 #211




-Original Message-
From: Joseph M. Durnal 
To: Elecraft Reflector 
Sent: Sun, Feb 11, 2018 8:30 am
Subject: Re: [Elecraft] K3 VFO A

Please stop e-mailing me off list asking if it is locked.  No, its not
locked.

Thanks,
J

On Sat, Feb 10, 2018 at 5:23 PM, Joseph M. Durnal 
wrote:

> My K3 VFO A knob doesn't seem to want to do anything.  It won't change the
> frequency, nor will it change the settings in the menu.  My first guess is
> that the encoder is bad.  VFO B works fine.  Is there any way I can verify
> this before I pull the K3 apart?
>
> Thanks & 73 de Joseph M. Durnal - NE3R
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to raysil...@verizon.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


[Elecraft] Right paddle on my KXPD2 issue

2018-02-11 Thread Tommy

    Hi folks,

 The right paddle seems to work intermittently on my KX2 paddles. I 
have to hit it several times to get it to work but even then it's 
random. I tried moving the adjustment for it in a bit but it makes no 
difference.


My settings are: CW IAMB = A

                          CW Key 1 = hand ( I do have a key plugged in 
but in or out it makes no difference)


                      CW key 2 = left = DdASH

                      CW WGHT = 1.25

Anyone see this problem? Anything I should check or try?

Thanks for any tips.

73! Tom - KB2SMS


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 VFO A

2018-02-11 Thread Joseph M. Durnal
Please stop e-mailing me off list asking if it is locked.  No, its not
locked.

Thanks,
J

On Sat, Feb 10, 2018 at 5:23 PM, Joseph M. Durnal 
wrote:

> My K3 VFO A knob doesn't seem to want to do anything.  It won't change the
> frequency, nor will it change the settings in the menu.  My first guess is
> that the encoder is bad.  VFO B works fine.  Is there any way I can verify
> this before I pull the K3 apart?
>
> Thanks & 73 de Joseph M. Durnal - NE3R
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com