date:20171201

Re: [Elecraft] K3S New Builder (Tom NB5Q)

2017-12-01 Thread Don Wilhelm


Tom,

The best advice I can offer is to:
- follow the instructions as written, they are correct.
- Make certain you use the correct screw lengths (measure them if 
necessary).
- Do not jump around in the instructions, the order presented is for a 
purpose.  Start at the beginning and work to completion.
- Work on one kit at a time.  Start with the K3S and all its options, 
then when working, start on the P3.  Connect them together as shown in 
the Owner's manual(s).


73,
Don W3FPR

On 12/1/2017 11:11 PM, Tom Norris wrote:

My first post, new builder, old man (74 years young!). I've been inactive
for some time but looking forward to getting back on CW with the new K3S,
P3 kits. I'm sure I will be back here for your valued and experienced
assistance during the build and setup. I have searched for and read a lot
of the posts on the list pertaining to assembling Elecraft kits. Thank you
and I hope to use a lot of the information in those posts. If you have any
up front advice in the assembly or setup of the following parts, I hope you
will share it with me.

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Re: [Elecraft] KX3/KXPA100 Power Output Difference

2017-12-01 Thread Don Wilhelm


Jim,

Amateur wattmeters are notoriously "famous" for their inaccuracies. 
Errors of up to 20% are not unusual, and in many cases it depends on the 
band because the voltage produced by the measurement diodes are 
frequency dependent.


So bottom line, don't worry about the 10 watt differential.  You are 
like the man with two watches who does not really know what time it is!


On the KX3 Yahoo Group question, I receive individual emails (not the 
digest), but something has happened, and I cannot post to any of the 
Yahoo groups that I am subscribed to for the past 2 weeks.  I think 
Yahoo has "gone to the dogs".


73,
Don W3FPR

On 12/1/2017 9:33 PM, Jim Ruff via Elecraft wrote:

I using a KX3/KXPA100 and I'm noticing that when I'm in TX the RF meter on the 
rig matches the set power of the rig, but on the KXP100 meter, it shows 10 or 
more watts less output.  Some examples:Rig   Amp50w  40w60w  50w70w  60w80w  70w
Here is what i've checked so far.  The Powerwerx PS is showing 13.8v when 
receiving and dips to 12.9v when in TX, so I don't believe I have a voltage 
problem.  I've moved the rig's power connection  back and forth from the front 
of the Powerwerx  PS to the top power pole connection on the back of the 
KXPA100 with no change.I've also re-tuned all bands from 10-40 meters with my 
LDG100 remote tuner and the highest SWR I receive is 1.4:1 on 30 and 40 meters. 
 All of the other bands are 1:1 to 1.2:1, so I don't think I'm getting any 
power foldback because of high SWR..  Does anyone have any thoughts on what's 
causing this differential, and if two power output meters are never going to be 
in sync, which meter is the most accurate?
Also, as an aside. Is there something wrong with the KX3 group from Yahoo? I 
haven't recieved a digest in days and when I try to get into the group I get an 
error message
Thanks,Jim W7JHR
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[Elecraft] K3S New Builder (Tom NB5Q)

2017-12-01 Thread Tom Norris

My first post, new builder, old man (74 years young!). I've been inactive
for some time but looking forward to getting back on CW with the new K3S,
P3 kits. I'm sure I will be back here for your valued and experienced
assistance during the build and setup. I have searched for and read a lot
of the posts on the list pertaining to assembling Elecraft kits. Thank you
and I hope to use a lot of the information in those posts. If you have any
up front advice in the assembly or setup of the following parts, I hope you
will share it with me.

K3S 100W Xcvr. Kit ; P3-K Panadapter Kit; External Speaker; The Elecraft
K3S and P3 by Fred Cady; K3S ATU; K3S Gen. Cov. RX Module; KFL3C-400; 2.8
for 2.7 kHz swap; KFL3B-FM; P3 Video/FFT Adapt.; P3 TX Monitor Adapt; 1.8-54
MHz 200W; incl. P3TXMON

Thanks a lot,
Tom Norris NB5Q New Mexico
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Re: [Elecraft] EARS

2017-12-01 Thread Wes Stewart


Kinda already taken:  http://eaars.com/

On 12/1/2017 5:27 PM, Gary Steinhour wrote:

This group should be known as the Elecraft Amateur Radio Society.
Then we would all be EARS.

73 de Gary, KF6U
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Re: [Elecraft] Fan noise on FT8?

2017-12-01 Thread Joe Lynch

Dear Peter,
Maybe your mic is picking up the fan noise and transmitting it over the air. 
Try disconnecting your mic and see what happens.
Sincerely,
Joe Lynch, N6CL 

On Friday, December 1, 2017 3:44 PM, Peter Drexel via Elecraft 
 wrote:
 

 It seems that, when the fan starts on my K3, a series of vertical lines 
appears on the WSJT Wide Graph.  Every 60Hz would be kind of obvious.  What's 
causing that?  What can I do about it?  (other than keeping the power low 
enough - 8 watts or less - to keep the fan from kicking in)

73  de Peter, AE1TK3 # 3701
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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread Bill Frantz

I live on a long, thin lot is suburbia. My house, and my 
neighbor's houses are at the street end of our lots leaving lots 
of area behind. I have found that the RF noise in the back part 
of our lot is much lower than in the front part. That's where I 
try to put my antennas.


73 Bill AE6JV

On 12/1/17 at 10:51 AM, n...@elecraft.com (Wayne Burdick) wrote:

This is why about half of our product line is intended for use 
outdoors, hopefully far from most noise sources. I’m always 
amazed to see noise drop from S6 to S0 on 20 meters, for 
example, when I hike up the hill at a park that’s a quarter 
mile from civilization.


-
Bill Frantz| When it comes to the world | Periwinkle
(408)356-8506  | around us, is there any choice | 16345 
Englewood Ave
www.pwpconsult.com | but to explore? - Lisa Randall | Los Gatos, 
CA 95032


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[Elecraft] KX3/KXPA100 Power Output Difference

2017-12-01 Thread Jim Ruff via Elecraft

I using a KX3/KXPA100 and I'm noticing that when I'm in TX the RF meter on the 
rig matches the set power of the rig, but on the KXP100 meter, it shows 10 or 
more watts less output.  Some examples:Rig   Amp50w  40w60w  50w70w  60w80w  70w
Here is what i've checked so far.  The Powerwerx PS is showing 13.8v when 
receiving and dips to 12.9v when in TX, so I don't believe I have a voltage 
problem.  I've moved the rig's power connection  back and forth from the front 
of the Powerwerx  PS to the top power pole connection on the back of the 
KXPA100 with no change.I've also re-tuned all bands from 10-40 meters with my 
LDG100 remote tuner and the highest SWR I receive is 1.4:1 on 30 and 40 meters. 
 All of the other bands are 1:1 to 1.2:1, so I don't think I'm getting any 
power foldback because of high SWR..  Does anyone have any thoughts on what's 
causing this differential, and if two power output meters are never going to be 
in sync, which meter is the most accurate?
Also, as an aside. Is there something wrong with the KX3 group from Yahoo? I 
haven't recieved a digest in days and when I try to get into the group I get an 
error message
Thanks,Jim W7JHR
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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread Edward R Cole


Wayne and all:

A graphic example is my experience when I first arrived in Alaska to 
live in a small town of 75 people at end of 16-mile dead-end gravel 
road surrounded by the Chugach NF.  I rented a one-room cabin 14x16 
foot with a wood stove- that's all.  No electricity, no telephone, no 
running water, no toilet - just an outhouse.  Nearest electric power 
was 3-miles away.  Hooking up my battery operted TS-180S to a 80m 
dipole the s-meter did not budge off zero.  I could hear out to 
800-1000 mile everynight on 80m.  All HF bands were quiet.


Ten years later the electric utility extended lines to my property 
and I had both power and phone service.  Noise went up to 
S3.  Population of the town grew to 150 and the main road was paved.


Now I live about 100 miles west of there in a community of 4,000+ 12 
miles from a small city of 7,500.  80m runs S5 on a quiet day; 6m is 
also S5 noise floor.


So good luck finding that quiet place (beyond civilization)!  I live 
on the Kenai Peninsula of Alaska with area about the same as Ireland 
and pop of 55,000.  Everyone has wireless junk so "there goes the 
neighborhood".


I still can hear the occasional ATV, dirt bike or  snowmachine pass 
by the house.


Next move is the backside of the Moon!  LOL
73, Ed - KL7UW

Date: Fri, 1 Dec 2017 10:51:41 -0800
From: Wayne Burdick 
To: Randy Farmer 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] K3 PRE function question
Message-ID: <1a077cc6-4253-40a4-86bc-cd8ad1fb7...@elecraft.com>
Content-Type: text/plain; charset=utf-8

This is why about half of our product line is intended for use 
outdoors, hopefully far from most noise sources. I?m always amazed to 
see noise drop from S6 to S0 on 20 meters, for example, when I hike 
up the hill at a park that?s a quarter mile from civilization.


If you do it often enough, you can cancel your gym membership :)

Wayne
N6KR


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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[Elecraft] EARS

2017-12-01 Thread Gary Steinhour

This group should be known as the Elecraft Amateur Radio Society.
Then we would all be EARS.

73 de Gary, KF6U
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread John Perlick

I have the SARK and have used it around the world.  It works great, is 
accurate, tiny, self contained and easy to use.  Only downside is price but 
mine has easily paid for itself (by reducing the number of times I had to climb 
my tower!). 

John Perlick
Aria Corporation
www.ariacorp.com

> On Dec 1, 2017, at 11:37 AM, "elecraft-requ...@mailman.qth.net" 
>  wrote:
> 
> Send Elecraft mailing list submissions to
>elecraft@mailman.qth.net
> 
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> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
> 
> 
> Today's Topics:
> 
>   1.  Antenna Analyzer (John Harper)
>   2. Re: Antenna Analyzer (Dave Cole (NK7Z))
>   3. FR - KX2 max output now 12 watts (experimental) (John Oppenheimer)
>   4. Re: Antenna Analyzer (John Oppenheimer)
>   5. Re: Antenna Analyzer (Michael Walker)
>   6. Re: Antenna Analyzer (Jim Sheldon)
>   7. Re: Antenna Analyzer (Bob N3MNT)
>   8. Eleraft list (Paul (Tex) Herson)
>   9. For sale (Sid Leben)
>  10. Re: Antenna Analyzer (Dave Cole (NK7Z))
>  11. Re: Antenna Analyzer (Mike Cox)
>  12. Re: Antenna Analyzer (FA-VA4) (Peter Eijlander (PA0PJE))
>  13. Re: Antenna Analyzers (Mike Lichtman)
>  14. OT - Want to buy SideKar (Paul (Tex) Herson)
>  15. Antenna Analyzer (Dick Dickinson)
>  16. Re: Eleraft list (Charlie T)
>  17. Happiness is a new Elecraft Purchase (Mark Tosiello)
>  18. Re: Antenna Analyzer (Igor Sokolov)
>  19. Re: K3 PRE function question (Edward R Cole)
>  20. Re: K3 PRE function question (GRANT YOUNGMAN)
>  21. Re: Antenna Analyzer (FA-VA4) (Ignacy)
>  22. Re: Antenna Analyzer (FA-VA4) (Mark Goldberg)
>  23. Re: Antenna Analyzer (Doug Person)
>  24. Re: Antenna Analyzer (George Thornton)
>  25. K1 price? (Ken Alexander)
>  26. Re: Antenna Analyzer (Ronnie Hull)
>  27. Re: Antenna Analyzer (Michael Walker)
> 
> 
> --
> 
> Message: 1
> Date: Fri, 1 Dec 2017 06:57:08 -0600
> From: John Harper 
> To: Elecraft list 
> Subject: [Elecraft]  Antenna Analyzer
> Message-ID:
>
> Content-Type: text/plain; charset="UTF-8"
> 
> I highly recommend this one - cost effective, easy to build and compares
> favorable to more expensive models:
> https://ae5x.blogspot.com/2017/10/new-antenna-analyzer.html
> 
> More here:
> https://ae5x.blogspot.com/2017/11/a-brief-comparison-of-two-antenna.html
> 
> 
> 73,
> John AE5X
> 
> 
> --
> 
> Message: 2
> Date: Fri, 1 Dec 2017 04:58:22 -0800
> From: "Dave Cole (NK7Z)" 
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Antenna Analyzer
> Message-ID: <26b46a20-5b9c-3f46-10c1-1085b6bb3...@nk7z.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> The AA series from Rigexpert is also very lightweight...
> 
> 73s and thanks,
> Dave
> NK7Z
> http://www.nk7z.net
> 
>> On 12/01/2017 04:53 AM, John Stengrevics wrote:
>> The RigExpert line is small.
>> 
>> 73,
>> 
>> John
>> WA1EAZ
>> 
>>> On Dec 1, 2017, at 7:49 AM,   wrote:
>>> 
>>> just a quick question for the collective group here. I have built up my 
>>> KX-2 travel kit. The first week of november I took it with me to a  cabin I 
>>> leased outside of Gatlinburg, TN for some portable operating when I wasn?t 
>>> up in the mountains hiking. I took m y Super Antenna MP-1 plus the parts to 
>>> throw up a full wave loop for 40M. I did throw the loop up, and it out 
>>> performed the MP-1 by kudo?s.  But it struck me that it might be nice to 
>>> add a small antenna analyzer to my kit.
>>> I don?t need a big full size MFJ, which I do have. But something small.  
>>> Any experience here y?all?
>>> 
>>> thanks in advance for your answers
>>> 
>>> Ronnie W5SUM
>>> __
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>>> Message delivered to jstengrev...@comcast.net
>> 
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> 
> 
> --
> 
> Message: 3
> Date: Fri, 1 Dec 2017 07:19:15 -0600
> From: John Oppenheimer 
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] FR - KX2 max outpu

Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Don Wilhelm


Bob and all,

The "classic" formula for a wire half wave dipole (known to most hams) 
is 468/F (length in feet and frequency in MHz), and your "492 x K" 
factor is correct.  Sorry for those who use metric, you will have to 
convert)


However, that may not lead to a resonant antenna due to a number of 
factors - height above ground, proximity to other objects, diameter to 
length ratio of the wire among the most obvious factors.


In his years on this planet, L.B. Cebik long preached that "cutting 
formulas" such as 468/F were only an approximation.


Armed with an antenna analyzer and a calculator plus measuring tape, you 
can cut an antenna to be 'resonate' at the shack end of the antenna 
feedline in two tries.  The following technique appeared in QST 
Technical Correspondence for May 2017 (yes, it was my contribution).


The steps are as follows:
- Cut the antenna according to the 468/F formula and add 10%.  Write 
down the length.
- Put it into its final position and with the antenna analyzer, measure 
its resonance point (take your pick of whether that is point of lowest 
SWR or the point where the reactance goes to zero).
- Multiply the length of the antenna by the frequency you picked to call 
the resonant point.  That will yield a number to replace the "468" in 
the cutting formula.
- Use the resulting number and divide by the frequency where you want 
resonance to be.  That is the new length of the antenna.

- Cut the antenna to the new length and put it up and operate.

This works well for HF.  VHF may have other factors involved, so you may 
have to check the results again after the initial adjustment, but the 
principle remains the same.
This method takes into account the antenna surroundings and shortens the 
"cut and try" process considerably.


73
Don W3FPR


On 12/1/2017 3:22 PM, Bob McGraw K4TAX wrote:
Agreed.   I've always said hams cut an antenna a bit long and then trim 
it to get the lowest SWR at the desired frequency. This does not 
necessarily make for a resonant antenna.    My 75M antenna is resonant 
at 3.8 MHz as determined using a Grid Dip Oscillator,  but the impedance 
is about 35 ohms giving a SWR of about 1.4:1 .  At 3.9 MHz the SWR is 
1:1.  The length is actually 123 ft.  But the SWR 1:1 point indicates 
the antenna is 119.8 ft in length.


The resonant electrical length of a 1/2 wave dipole antenna is defined 
as Length being = (492 x K) / Frequency [MHz.]    This does not assure 
it will have a 1:1 SWR at the design frequency, but only that it will be 
resonant at that frequency.   {K = ratio of 1/2 wavelength to conductor 
diameter.  Typically for wire HF antennas a value of 0.95 is used.}



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[Elecraft] SARK

2017-12-01 Thread Sid Leben

The Sark 110 has been sold.
Thank you
Sid
KC2EE
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[Elecraft] Fan noise on FT8?

2017-12-01 Thread Peter Drexel via Elecraft

It seems that, when the fan starts on my K3, a series of vertical lines appears 
on the WSJT Wide Graph.  Every 60Hz would be kind of obvious.  What's causing 
that?  What can I do about it?  (other than keeping the power low enough - 8 
watts or less - to keep the fan from kicking in)

73  de Peter, AE1TK3 # 3701
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Bob McGraw K4TAX

Agreed.   I've always said hams cut an antenna a bit long and then trim 
it to get the lowest SWR at the desired frequency. This does not 
necessarily make for a resonant antenna.    My 75M antenna is resonant 
at 3.8 MHz as determined using a Grid Dip Oscillator,  but the impedance 
is about 35 ohms giving a SWR of about 1.4:1 .  At 3.9 MHz the SWR is 
1:1.  The length is actually 123 ft.  But the SWR 1:1 point indicates 
the antenna is 119.8 ft in length.


The resonant electrical length of a 1/2 wave dipole antenna is defined 
as Length being = (492 x K) / Frequency [MHz.]    This does not assure 
it will have a 1:1 SWR at the design frequency, but only that it will be 
resonant at that frequency.   {K = ratio of 1/2 wavelength to conductor 
diameter.  Typically for wire HF antennas a value of 0.95 is used.}


Just remember, the radiation resistance of the antenna will vary 
according to height above ground.  Thus a 1/2 wave dipole at resonance 
will have its center feed impedance vary from some 20 ohms at 1/8 
wavelength above ground to over 90 ohms at 3/8 wavelength above ground.  
And at 1/2 wavelength above ground the impedance is near 70 ohms.  Of 
course ground conductivity will affect the actual results.


73

Bob, K4TAX


On 12/1/2017 1:54 PM, John Harper wrote:

Elecraft rigs, including the KX2, have an indicator for SWR that the rig
sees. Resonance can be clearly seen by moving up and down the band to
find it.

Not necessarily. Resonance and point of lowest SWR do not always coincide.

John AE5X
https://ae5x.blogspot.com
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Bob McGraw K4TAX

I find that Jim's thoughts and findings are similar to mine. SWR is 
really not a good indication of how well an antenna works. One of my 
coax lines has a 1:1 SWR from 160M through 6M.  It doesn't receive well 
nor transmit well.  It' has a dummy load on the distant end.


Along the same line, I have a home brew variable L network consisting of 
a tapped inductor, about 24 taps, and a 500 pf variable capacitor.  I 
find it will match about anything that is hung on one end.  If it 
doesn't match, simply turn it around and most likely a suitable match 
will be found.  In all cases, my random wire is not a resonant antenna 
but a length of wire tossed over a tree limb.   With this, the SWR 
indication on the radio is all that's needed.


73

Bob, K4TAX



On 12/1/2017 1:09 PM, Jim Brown wrote:

On 12/1/2017 4:49 AM, w5...@comcast.net wrote:
But it struck me that it might be nice to add a small antenna 
analyzer to my kit.


Why must every perceived problem be resolved by buying something? All 
Elecraft rigs, including the KX2, have an indicator for SWR that the 
rig sees. Resonance can be clearly seen by moving up and down the band 
to find it.


SWR is NOT an indicator of how well an antenna works, and antennas 
don't necessarily have to be resonant to work well! That depends on 
how we use the fundamentals of how antennas work. Especially when 
using improvised wire antennas with little or no feedline, the only 
thing that matters beyond the fundamental properties of the antenna is 
whether the rig can match it.


I'd be far more likely to drag along more "stuff" with which to rig 
improvised antennas in whatever surroundings I find myself, and to 
study the ARRL Handbook and Antenna Book to understand those 
fundamentals.


73, Jim K9YC



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[Elecraft] Antenna Analyzer

2017-12-01 Thread John Harper

>Elecraft rigs, including the KX2, have an indicator for SWR that the rig
>sees. Resonance can be clearly seen by moving up and down the band to
>find it.

Not necessarily. Resonance and point of lowest SWR do not always coincide.

John AE5X
https://ae5x.blogspot.com
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Re: [Elecraft] Antenna Analyzer (FA-VA4)

2017-12-01 Thread Jim Brown


On 12/1/2017 10:30 AM, Wes Stewart wrote:

What calibrations are you doing that take an hour?

You can do a master cal with lots of points in 5 minutes.


Yes.  AND, more important, calibrations can be saved for standard 
measurement setups, so when you're always using a previous setup, 
there's no need to recalibrate -- you simply load the previous calibration.


I use mine in the field all the time using a Win 10 touch screen 
tablet.  The software is phenomenal.  I've been doing network analysis 
since the days when the calibration curve was a grease pencil line on 
a CRT.  I (my employer) bought one of the first HP8510s sold to a 
non-governmental agency.  It cost IIRC north of $200K, was in a 4-foot 
rack cabinet and probably weighed 500 pounds.  With an admittedly 
reduced frequency range, the VNWA3 is for all practical purposes the 
equal of the '8510 and I can hold it in the palm of my hand!


Like Wes, I've been doing swept complex (magnitude and phase) 
measurements since 1982, first in the audio range, later at RF.  I 
bought the VNWA3e about 4 years ago, and have found it to be the 
excellent that Wes describes.  It has an excellent TDR function. Another 
important advantage of this unit over others is that it is self-powered 
from the USB port, so no external power is required.


TDR can be VERY useful when troubleshooting an antenna or feedline 
problem, and the higher the analyzer can sweep, the more fine detail it 
can show. The VNWA can sweep to 1.3 GHz.  Few analyzers the do TDR can 
sweep nearly this high. A wideband TDR sweep can find all the splices 
and many defects in a feedline.


Another use of TDR is that it allows us to measure an antenna at the 
shack end of a feedline, find the electrical length of the feedline with 
the TDR feature, and then using Smith Chart software (free), subtract 
out the feedline to see the Z and SWR at the feedpoint.


Note also that this is a vector NETWORK analyzer. A NETWORK analyzer has 
input and output ports, so that in addition to impedance and TDR, it can 
also measure the response of any system. You can, for example, measure 
the effectiveness of filters, and the coupling between adjacent 
antennas. These plots of bandpass filter response were done with the 
VNWA 3e. Note that you can display several views of the same 
measurement. These display SWR, attenuation, and reflection loss, and 
the markers show values within the passband and on other ham bands.


http://audiosystemsgroup.com/BandpassFilterData.htm

These data were used to generate this report that ran in National 
Contest Journal in 2014.


http://k9yc.com/BandpassFilterSurvey.pdf

With a good external frequency standard (I use a Bodnar GPSDO) it 
makes an excellent frequency counter and works as a limited function 
spectrum analyzer.


Yes, and quite versatile in that mode. Inexpensive SDRs also provide 
limited spectrum analyzer functions, and some of them are quite good IF 
the user is careful to prevent overload and knows how to avoid false 
responses from aliasing.


One other thing.  On my 160-meter inverted-L antenna I receive a 
couple of AM broadcast stations at -3dBm.  If I limit the lower sweep 
frequency to 1.7 MHz the VNWA3 is unaffected.  I suspect some of these 
other boxes are not so resilient. 


This can be very important -- many analyzers get blown away by AM 
broadcast stations.


Here are links to the mfr, SDRKits. The VNWA is NOT a kit, it is built 
and fully tested. You want the model 3E or 3EC with calibration kit and 
cables.


https://www.sdr-kits.net/index.php?route=web/pages&page_id=29_29

https://www.sdr-kits.net/index.php?route=web/pages&page_id=68_68

73, Jim K9YC

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[Elecraft] OT - Want to buy SideKar

2017-12-01 Thread Shel KF0UR

Hi Tex,

 

We know where you can get one!

 

We wanted to make sure you knew that there's free shipping on SideKars and
SideKar Plus's right now.

 

And the SideKars are an additional $10 off.  Great time to buy, if we do say
so ourselves.

 

73,

 

Shel KF0UR

www.QRPworks.com

 

=

Date: Fri, 1 Dec 2017 15:25:17 + (UTC)

From: "Paul (Tex) Herson" mailto:k...@yahoo.com> >

To: elecraft@mailman.qth.net  

Subject: [Elecraft] OT - Want to buy SideKar

Message-ID: <1148653154.7156293.1512141917...@mail.yahoo.com>

Content-Type: text/plain; charset=UTF-8

 

Looking for a clean working SideKar or SideKar Plus.? Picture and price to
79852.? Please contact offline ka5y at yahoo

73 Tex ka5y

 

 

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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread GRANT YOUNGMAN

Hi, Ronnie …

There are a bezillion to choose from — big, small, graphical, TDR, need a 
computer or pad,  etc, as others have pointed out.

Another one you might consider is the iP30z (or iP60z) retailed through 
Buddipole.  They’re a bit pricey compared to some options, but they have the 
advantage of being small enough to squeeze into virtually any bag or a shirt 
pocket, lightweight (7 oz) and do everything you need in the field — SWR, |Z|.  
All the advanced features that have been mentioned are good to have now and 
then, but if you’re looking for small and imminently packable for a hike into a 
noise free park or a walk to the beach, as I was, it’s a good choice.  Quick, 
easy, simple — and you don’t have to pack the manual to figure it out :-)

Grant NQ5T
K3 #2091, KX3 #8342

> On Dec 1, 2017, at 7:49 AM, w5...@comcast.net wrote:
> 
> just a quick question for the collective group here. I have built up my KX-2 
> travel kit. The first week of november I took it with me to a  cabin I leased 
> outside of Gatlinburg, TN for some portable operating when I wasn’t up in the 
> mountains hiking. I took m y Super Antenna MP-1 plus the parts to throw up a 
> full wave loop for 40M. I did throw the loop up, and it out performed the 
> MP-1 by kudo’s.  But it struck me that it might be nice to add a small 
> antenna analyzer to my kit.
> I don’t need a big full size MFJ, which I do have. But something small.  Any 
> experience here y’all?  
> 
> thanks in advance for your answers
> 
> Ronnie W5SUM
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Lynn W. Taylor, WB6UUT


Because new toys are always exciting?

On 12/1/2017 11:09 AM, Jim Brown wrote:

Why must every perceived problem be resolved by buying something?

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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Jim Brown


On 12/1/2017 4:49 AM, w5...@comcast.net wrote:

But it struck me that it might be nice to add a small antenna analyzer to my 
kit.


Why must every perceived problem be resolved by buying something? All 
Elecraft rigs, including the KX2, have an indicator for SWR that the rig 
sees. Resonance can be clearly seen by moving up and down the band to 
find it.


SWR is NOT an indicator of how well an antenna works, and antennas don't 
necessarily have to be resonant to work well! That depends on how we use 
the fundamentals of how antennas work. Especially when using improvised 
wire antennas with little or no feedline, the only thing that matters 
beyond the fundamental properties of the antenna is whether the rig can 
match it.


I'd be far more likely to drag along more "stuff" with which to rig 
improvised antennas in whatever surroundings I find myself, and to study 
the ARRL Handbook and Antenna Book to understand those fundamentals.


73, Jim K9YC



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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Mike Furrey

I have had the Comet analyzer for a year. Although a bit pricey for the number 
of functions, what it does, it does very well and is a very solid, well built, 
and easy to use device. With that said, I will add a VNA unit to my arsenal of 
analyzers soon. 

It sure would not hurt my feeling to see what what Elecraft could do in the 
analyzer department!
73, Mike WA5POK
 

On Friday, December 1, 2017 12:35 PM, Michael Walker  
wrote:
 

 The RigExpert AA-1400 fits perfectly in a $40 Pelican 1200 case.

I have mine, charger, batteries, etc in a nice Red 1200.

I would post a pic, but you can't on this reflector.

Mike va3mw


On Fri, Dec 1, 2017 at 12:19 PM, George Thornton <
gthorn...@thorntonmostullaw.com> wrote:

> The Time Domain Reflectometer (TDR) is a hugely important feature, and is
> now available with other brands, including some of the RigExpert models.
>
> I do a lot of field work with both HF and VHF/UHF.  In my experience most
> of the problems I have encountered have been traced to cable defects of one
> kind or another.  The TDR function allows you to quickly and reliably test
> the integrity of cabling, allowing you to identify the exact location of
> the defect.
>
> I am partial to the RigExpert models, which have been reliable and
> accurate, and very easy and intuitive to use.
>
> My only quarrel with RigExpert is that they do not offer water resistant
> sealed cases.  These can get damaged in a wet environment.
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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread Wayne Burdick

This is why about half of our product line is intended for use outdoors, 
hopefully far from most noise sources. I’m always amazed to see noise drop from 
S6 to S0 on 20 meters, for example, when I hike up the hill at a park that’s a 
quarter mile from civilization.

If you do it often enough, you can cancel your gym membership :)

Wayne
N6KR

> On Dec 1, 2017, at 10:25 AM, Randy Farmer  wrote:
> 
> I sure envy those of you who live in a quiet enough environment to take 
> advantage of that much gain. 

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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Michael Walker

Hi Ronnie

The TDR is a must have.  Once you start sweeping all your feedlines you
will know they are not as good as you might have thought.  :)

Twice I tossed an entire roll of heliax and twice 2 unique runs of RG213.


If anyone has feedlines older than 10 years, you might want to consider the
investment.

Mike va3mw


On Fri, Dec 1, 2017 at 12:31 PM, Ronnie Hull  wrote:

> Yes SMALL and PORTABLE is what I am interested in. I never wanted a TDR.
> Rig experts are fine analyzes but out of the league of what I want which is
> something to toss in my "go" bag
>
> Ronnie W5SUM
>
> Sent from my iPhone
>
> > On Dec 1, 2017, at 11:19 AM, George Thornton <
> gthorn...@thorntonmostullaw.com> wrote:
> >
> > The Time Domain Reflectometer (TDR) is a hugely important feature, and
> is now available with other brands, including some of the RigExpert models.
> >
> > I do a lot of field work with both HF and VHF/UHF.  In my experience
> most of the problems I have encountered have been traced to cable defects
> of one kind or another.  The TDR function allows you to quickly and
> reliably test the integrity of cabling, allowing you to identify the exact
> location of the defect.
> >
> > I am partial to the RigExpert models, which have been reliable and
> accurate, and very easy and intuitive to use.
> >
> > My only quarrel with RigExpert is that they do not offer water resistant
> sealed cases.   These can get damaged in a wet environment.
> >
> >
> >
> > T-Original Message-
> > From: elecraft-boun...@mailman.qth.net [mailto:elecraft-bounces@
> mailman.qth.net] On Behalf Of Jim Sheldon
> > Sent: Friday, December 1, 2017 5:39 AM
> > To: elecraft@mailman.qth.net
> > Subject: Re: [Elecraft] Antenna Analyzer
> >
> > I was introduced to the SARK-110 several years ago and besides being an
> excellent antenna analyzer, it had one feature that nobody else had (when I
> bought the SARK) and that is called a "Time Domain Reflectometer".  This
> allows you to find breaks, impedance bumps and other anomalies in cable
> runs.
> >
> > During my 20 years in the Army, I was introduced to a hugely expensive
> HP-140A oscilloscope with a TDR plug in.  We used it to find cuts in our
> buried coax where the local people were digging it up for the copper (back
> in 1967).  From that point on, I always wanted a TDR but they were way too
> expensive (even used) for a poor ham to even consider until I was
> introduced to the SARK by a good friend at the "OzarkCon" QRP convention.
> It paid for itself quickly by finding where a gopher (or
> > mole) had chewed mostly through some buried coax I had going to a
> vertical in the back yard.  The SARK's TDR pinpointed the break within a
> foot and it was probably more accurate than that as my measurements when
> following the cable were somewhat sloppy.
> >
> > It also makes a pretty decent signal generator as well, can be
> calibrated against WWV with not too much effort, but the minimum signal you
> can output is 50 microvolts (S9) so a good external step attenuator is
> needed along with double shielded cables to minimize feedthrough of
> > the SARK's output signal.   Oh yes, I did mention, it's an excellent
> > antanna analyzer as well and it will do Smith Chart plots and other
> stuff too.  You can control it with a computer via USB too.
> >
> > No financial interest in the company, just a very happy user.
> >
> > Jim - W0EB
> >
> > -- Original Message --
> > From: "John Oppenheimer" 
> > To: elecraft@mailman.qth.net
> > Sent: 12/1/2017 7:23:20 AM
> > Subject: Re: [Elecraft] Antenna Analyzer
> >
> >> The SARK 110 is very small with many features:
> >>
> >> http://www.sark110.com/
> >>
> >> John KN5L
> >> __
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Re: [Elecraft] Antenna Analyzer (FA-VA4)

2017-12-01 Thread Wes Stewart


What calibrations are you doing that take an hour?

You can do a master cal with lots of points in 5 minutes.

I use mine in the field all the time using a Win 10 touch screen tablet.  The 
software is phenomenal.  I've been doing network analysis since the days when 
the calibration curve was a grease pencil line on a CRT.  I (my employer) bought 
one of the first HP8510s sold to a non-governmental agency.  It cost IIRC north 
of $200K, was in a 4-foot rack cabinet and probably weighed 500 pounds.  With an 
admittedly reduced frequency range, the VNWA3 is for all practical purposes the 
equal of the '8510 and I can hold it in the palm of my hand!


With a good external frequency standard (I use a Bodnar GPSDO) it makes an 
excellent frequency counter and works as a limited function spectrum analyzer.


One other thing.  On my 160-meter inverted-L antenna I receive a couple of AM 
broadcast stations at -3dBm.  If I limit the lower sweep frequency to 1.7 MHz 
the VNWA3 is unaffected.  I suspect some of these other boxes are not so resilient.


Wes N7WS
Not associated with any of the players who designed or built this thing.  Simply 
a very satisfied customer.



On 12/1/2017 9:16 AM, Ignacy wrote:


VNWA3 covers > 1300 MHz and costs about $600 but needs a computer. Often
requires multiple calibrations requiring an hr. Has two port for filters and
beam testing. I use it only when nothing else works.


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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread Randy Farmer

I sure envy those of you who live in a quiet enough environment to take 
advantage of that much gain. Here in the city the noise level is so high 
even on 6 meters that even the additional gain provided by the built-in 
preamp on the KXV3B module usually only brings the noise level up; weak 
signals are still buried in all the ambient crap. I previously used a 
PR6 on my K3 and don't really see much difference between it and the 
preamp in the Transverter module. I'm looking forward more and more to 
retirement and a move out of the city.


73...
Randy, W8FN

On 12/1/2017 9:53 AM, Edward R Cole wrote:
Just my observations on 6m with only the internal PRE on my K3 
(purchased circa 2010):


I noticed a lack of sensitivity on 6m.  I had a ARR P50VDG preamp with 
22-25 dB of gain which worked better than the internal PRE. That gave 
me about 12 dB more gain compared with running the PRE. Also lower NF 
(typ. 0.5 dB).


I then purchased a PR6-10 and that helps considerably over using the 
PRE.  I have used my K3+PR6-10 for copying 6m-eme signals with a 
single yagi (6-element) so that speaks well of the PR6-10.  I use the 
ARR preamp mounted at tower top for eme and it is a little bit better 
(has more gain) on very weak eme signals using JT65.  I use DIGOUT-1 
to control my PR6-10 and use the pass-thru connections for the ARR.  
That adds nice convenience for using the two preamps.


I have a second smaller 6m yagi which I use the PR6-10, only.  BTW 
this is equal to my KX3 with preamp ON (which says a lot for the KX3).


My opinion is the PR6-10 makes the K3 better on higher bands than the 
internal PRE (which I leave off).  If you are considering getting one 
its a good (if not essential) upgrade for the original K3 on 6m and 
10m.  Yes, you will see a small rise in the noise reading on the 
s-meter (due to more gain), but sensitivity is improved more than that 
(due to lower NF).  I see about S3-4 noise floor on 6m with the PR6-10 
and S5 with the ARR.  PRE runs maybe S1 (a guess as I haven't used it 
for some time).


73, Ed - KL7UW


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[Elecraft] Antenna Analyzer

2017-12-01 Thread P.J.Hicks

On the simple side I recently built Jack Purdum's Arduino controlled unit for 
about $60 and it works well and does all the normal functions required for a 
field operation on 10m to 80m. 
73, PJH, N7PXY 
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Mel Farrer via Elecraft

The FG-01 is  good IF the unit has the improved 2nd harmonic suppression.  Some 
of the earlier ones only had -6 dB down 2nd.  I have two and the first one went 
back twice to fix it.
Mel, K6KBE

  From: Doug Person 
 To: elecraft@mailman.qth.net 
 Sent: Friday, December 1, 2017 9:24 AM
 Subject: Re: [Elecraft] Antenna Analyzer
   
I have several antenna analyzers. The best value I think is the YouKits 
FG-01  .  It's price 
is on the lower end of the scale. It's color display and feature set are 
outstanding. I also have the MFJ 223 which is very compact and highly 
functional. These two are particularly good for travel due to their very 
small size.

73, Doug -- K0DXV


On 12/1/17 8:34 AM, Dick Dickinson wrote:
> Thanks folks for the rundown on current small Antenna Analyzers.
>
>  
>
>  
>
> Dick - KA5KKT
>
>  
>
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Michael Walker

The RigExpert AA-1400 fits perfectly in a $40 Pelican 1200 case.

I have mine, charger, batteries, etc in a nice Red 1200.

I would post a pic, but you can't on this reflector.

Mike va3mw


On Fri, Dec 1, 2017 at 12:19 PM, George Thornton <
gthorn...@thorntonmostullaw.com> wrote:

> The Time Domain Reflectometer (TDR) is a hugely important feature, and is
> now available with other brands, including some of the RigExpert models.
>
> I do a lot of field work with both HF and VHF/UHF.  In my experience most
> of the problems I have encountered have been traced to cable defects of one
> kind or another.  The TDR function allows you to quickly and reliably test
> the integrity of cabling, allowing you to identify the exact location of
> the defect.
>
> I am partial to the RigExpert models, which have been reliable and
> accurate, and very easy and intuitive to use.
>
> My only quarrel with RigExpert is that they do not offer water resistant
> sealed cases.   These can get damaged in a wet environment.
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Ronnie Hull

Yes SMALL and PORTABLE is what I am interested in. I never wanted a TDR. Rig 
experts are fine analyzes but out of the league of what I want which is 
something to toss in my "go" bag

Ronnie W5SUM

Sent from my iPhone

> On Dec 1, 2017, at 11:19 AM, George Thornton 
>  wrote:
> 
> The Time Domain Reflectometer (TDR) is a hugely important feature, and is now 
> available with other brands, including some of the RigExpert models.
> 
> I do a lot of field work with both HF and VHF/UHF.  In my experience most of 
> the problems I have encountered have been traced to cable defects of one kind 
> or another.  The TDR function allows you to quickly and reliably test the 
> integrity of cabling, allowing you to identify the exact location of the 
> defect.
> 
> I am partial to the RigExpert models, which have been reliable and accurate, 
> and very easy and intuitive to use.  
> 
> My only quarrel with RigExpert is that they do not offer water resistant 
> sealed cases.   These can get damaged in a wet environment.
> 
> 
> 
> T-Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Sheldon
> Sent: Friday, December 1, 2017 5:39 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Antenna Analyzer
> 
> I was introduced to the SARK-110 several years ago and besides being an 
> excellent antenna analyzer, it had one feature that nobody else had (when I 
> bought the SARK) and that is called a "Time Domain Reflectometer".  This 
> allows you to find breaks, impedance bumps and other anomalies in cable runs.
> 
> During my 20 years in the Army, I was introduced to a hugely expensive 
> HP-140A oscilloscope with a TDR plug in.  We used it to find cuts in our 
> buried coax where the local people were digging it up for the copper (back in 
> 1967).  From that point on, I always wanted a TDR but they were way too 
> expensive (even used) for a poor ham to even consider until I was introduced 
> to the SARK by a good friend at the "OzarkCon" QRP convention.  It paid for 
> itself quickly by finding where a gopher (or
> mole) had chewed mostly through some buried coax I had going to a vertical in 
> the back yard.  The SARK's TDR pinpointed the break within a foot and it was 
> probably more accurate than that as my measurements when following the cable 
> were somewhat sloppy.
> 
> It also makes a pretty decent signal generator as well, can be calibrated 
> against WWV with not too much effort, but the minimum signal you can output 
> is 50 microvolts (S9) so a good external step attenuator is needed along with 
> double shielded cables to minimize feedthrough of 
> the SARK's output signal.   Oh yes, I did mention, it's an excellent 
> antanna analyzer as well and it will do Smith Chart plots and other stuff 
> too.  You can control it with a computer via USB too.
> 
> No financial interest in the company, just a very happy user.
> 
> Jim - W0EB
> 
> -- Original Message --
> From: "John Oppenheimer" 
> To: elecraft@mailman.qth.net
> Sent: 12/1/2017 7:23:20 AM
> Subject: Re: [Elecraft] Antenna Analyzer
> 
>> The SARK 110 is very small with many features:
>> 
>> http://www.sark110.com/
>> 
>> John KN5L
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[Elecraft] K1 price?

2017-12-01 Thread Ken Alexander


Hi Folks,

I have a K1 that I'd like to put up for sale.  I don't remember what 
they sold for originally and I'd like to price it fairly.  It has a 
4-band filter board and I think I can dig out the original 2-band board 
too.  Any help would be appreciated.


Thanks and 73,

Ken Alexander
VE3HLS

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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread George Thornton

The Time Domain Reflectometer (TDR) is a hugely important feature, and is now 
available with other brands, including some of the RigExpert models.

I do a lot of field work with both HF and VHF/UHF.  In my experience most of 
the problems I have encountered have been traced to cable defects of one kind 
or another.  The TDR function allows you to quickly and reliably test the 
integrity of cabling, allowing you to identify the exact location of the defect.

I am partial to the RigExpert models, which have been reliable and accurate, 
and very easy and intuitive to use.  

My only quarrel with RigExpert is that they do not offer water resistant sealed 
cases.   These can get damaged in a wet environment.



T-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Sheldon
Sent: Friday, December 1, 2017 5:39 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Antenna Analyzer

I was introduced to the SARK-110 several years ago and besides being an 
excellent antenna analyzer, it had one feature that nobody else had (when I 
bought the SARK) and that is called a "Time Domain Reflectometer".  This allows 
you to find breaks, impedance bumps and other anomalies in cable runs.

During my 20 years in the Army, I was introduced to a hugely expensive HP-140A 
oscilloscope with a TDR plug in.  We used it to find cuts in our buried coax 
where the local people were digging it up for the copper (back in 1967).  From 
that point on, I always wanted a TDR but they were way too expensive (even 
used) for a poor ham to even consider until I was introduced to the SARK by a 
good friend at the "OzarkCon" QRP convention.  It paid for itself quickly by 
finding where a gopher (or
mole) had chewed mostly through some buried coax I had going to a vertical in 
the back yard.  The SARK's TDR pinpointed the break within a foot and it was 
probably more accurate than that as my measurements when following the cable 
were somewhat sloppy.

It also makes a pretty decent signal generator as well, can be calibrated 
against WWV with not too much effort, but the minimum signal you can output is 
50 microvolts (S9) so a good external step attenuator is needed along with 
double shielded cables to minimize feedthrough of 
the SARK's output signal.   Oh yes, I did mention, it's an excellent 
antanna analyzer as well and it will do Smith Chart plots and other stuff too.  
You can control it with a computer via USB too.

No financial interest in the company, just a very happy user.

Jim - W0EB

-- Original Message --
From: "John Oppenheimer" 
To: elecraft@mailman.qth.net
Sent: 12/1/2017 7:23:20 AM
Subject: Re: [Elecraft] Antenna Analyzer

>The SARK 110 is very small with many features:
>
>http://www.sark110.com/
>
>John KN5L
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Doug Person

I have several antenna analyzers. The best value I think is the YouKits 
FG-01  .  It's price 
is on the lower end of the scale. It's color display and feature set are 
outstanding. I also have the MFJ 223 which is very compact and highly 
functional. These two are particularly good for travel due to their very 
small size.


73, Doug -- K0DXV


On 12/1/17 8:34 AM, Dick Dickinson wrote:

Thanks folks for the rundown on current small Antenna Analyzers.

  

  


Dick - KA5KKT

  


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Re: [Elecraft] Antenna Analyzer (FA-VA4)

2017-12-01 Thread Mark Goldberg

I have one more suggestion. I have a MiniVNA Tiny, expensive at about $600,
but it is a full two port Vector Network Analyzer in a 2.5" X 2.5" X 1" box
connected via USB. It has both a computer app and a phone app to run it. I
have taken it out in the field where I would never consider taking a 75 lb
VNA. I have used it to analyze antennas, filters, transmission lines and to
characterize caps and inductors over frequency.

73,

Mark
W7MLG

On Fri, Dec 1, 2017 at 9:16 AM, Ignacy  wrote:

> The choice of analyzers is not that simple unless cheap price is the only
> factor.
>
> I have four analyzers: Rigexpert 230Pro, FA-VA4, VNWA3 and Mini60.
>
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Re: [Elecraft] Antenna Analyzer (FA-VA4)

2017-12-01 Thread Ignacy

The choice of analyzers is not that simple unless cheap price is the only
factor.

I have four analyzers: Rigexpert 230Pro, FA-VA4, VNWA3 and Mini60.

Rigexpert covers up to 230 MHz and costs about $500. It is the easiest to
use and has the most functionality. Less accurate because it does not have
OLS calibration and is pretty big, but new models (Zoom) have calibration
and are much lighter. Seems rain resistant. Coax testing for short and
length is a blessing. I use it most of the time. 

VNWA3 covers > 1300 MHz and costs about $600 but needs a computer. Often
requires multiple calibrations requiring an hr. Has two port for filters and
beam testing. I use it only when nothing else works. 

FA-VA4 works up to 100 MHz and is very accurate after good calibration
(included 50 Ohm load is not too good). Light but not the smallest. Getting
things done takes many buttons. Not waterproof. Also. soldering is tricky
and I wonder whether bad soldering will show up one time. I use FA-VA4 for
portable measurements where accuracy is important. For instance impedance of
inv L on 160m. Measure impedance, prepare appropriate coil, and no extra
fine tuning needed. Also very useful to measure properties of toroids across
frequency. 

I also have mini60 that works up to 60 MHz, is very small, can be charged
via USB, and interfaces with Android phone, and costs $100. SWR accuracy is
good but X is not. I leave it for travel. 





--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread GRANT YOUNGMAN

Do you have the KXV3B with the new/improved preamp installed?  I not, you 
should consider it.

Grant NQ5T
K3 #2091, KX3 #8342


> On Dec 1, 2017, at 10:53 AM, Edward R Cole  wrote:
> 
> Just my observations on 6m with only the internal PRE on my K3 (purchased 
> circa 2010):
> 
> I noticed a lack of sensitivity on 6m.  I had a ARR P50VDG preamp with 22-25 
> dB of gain which worked better than the internal PRE.  That gave me about 12 
> dB more gain compared with running the PRE.  Also lower NF (typ. 0.5 dB).
> 

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Re: [Elecraft] K3 PRE function question

2017-12-01 Thread Edward R Cole

Just my observations on 6m with only the internal PRE on my K3 
(purchased circa 2010):


I noticed a lack of sensitivity on 6m.  I had a ARR P50VDG preamp 
with 22-25 dB of gain which worked better than the internal 
PRE.  That gave me about 12 dB more gain compared with running the 
PRE.  Also lower NF (typ. 0.5 dB).


I then purchased a PR6-10 and that helps considerably over using the 
PRE.  I have used my K3+PR6-10 for copying 6m-eme signals with a 
single yagi (6-element) so that speaks well of the PR6-10.  I use the 
ARR preamp mounted at tower top for eme and it is a little bit better 
(has more gain) on very weak eme signals using JT65.  I use DIGOUT-1 
to control my PR6-10 and use the pass-thru connections for the 
ARR.  That adds nice convenience for using the two preamps.


I have a second smaller 6m yagi which I use the PR6-10, only.  BTW 
this is equal to my KX3 with preamp ON (which says a lot for the KX3).


My opinion is the PR6-10 makes the K3 better on higher bands than the 
internal PRE (which I leave off).  If you are considering getting one 
its a good (if not essential) upgrade for the original K3 on 6m and 
10m.  Yes, you will see a small rise in the noise reading on the 
s-meter (due to more gain), but sensitivity is improved more than 
that (due to lower NF).  I see about S3-4 noise floor on 6m with the 
PR6-10 and S5 with the ARR.  PRE runs maybe S1 (a guess as I haven't 
used it for some time).


73, Ed - KL7UW


Date: Thu, 30 Nov 2017 07:25:09 -0500
From: Randy Lake 
To: Elecraft List 
Subject: [Elecraft] K3 PRE function question
Message-ID:

Content-Type: text/plain; charset="UTF-8"

This is a pretty simple question regarding the K3 PREamp (not PR6). If I do
not have the PR6 does the PRE on the front panel help with RX on 6m/2m (int
module) or does it merely increase noise?
Thanks


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Igor Sokolov


+1

73, Igor UA9CDC


01.12.2017 18:23, John Oppenheimer пишет:

The SARK 110 is very small with many features:

http://www.sark110.com/

John KN5L
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.



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[Elecraft] Happiness is a new Elecraft Purchase

2017-12-01 Thread Mark Tosiello

Hi folks!

Just thought I'd post a note and a quick, hopefully easy question. I'm the
proud owner of a KX3/PX3 pair, which I built from kit. This is some
seriously great equipment. I was thinking that I'd LOVE to use the KX3 in
situations where I need a BIT more than 15 watts (various contests or
chasing DX). My 100 watt go-to radio is an IC-746 Pro, but I wanted to take
advantage of the great receiver on the KX3. An amp was surely in  my
future, so I pulled the trigger this morning and purchased the KXPA100 with
internal ATU!! This one's going to be factory-built. I'm REALLY looking
forward to using the full 100w system. Mys radios feed a HexBeam, Gap
Challenger and 80m loop. Can't wait!

Are there any tips, tricks or is there any advice the Elecraft family has
for using and getting the most out of the KXPA 100?

Thanks!

Mark KD8EDC
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Re: [Elecraft] Eleraft list

2017-12-01 Thread Charlie T

OK, but then, why am I seeing this?

Chas


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Paul (Tex) Herson via
Elecraft
Sent: Friday, December 01, 2017 9:15 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Eleraft list

For some reason I am no longer able to post?
73 Texka5y
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[Elecraft] Antenna Analyzer

2017-12-01 Thread Dick Dickinson

Thanks folks for the rundown on current small Antenna Analyzers.

 

 

Dick - KA5KKT

 

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[Elecraft] OT - Want to buy SideKar

2017-12-01 Thread Paul (Tex) Herson via Elecraft

Looking for a clean working SideKar or SideKar Plus.  Picture and price to 
79852.  Please contact offline ka5y at yahoo
73 Texka5y
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Re: [Elecraft] Antenna Analyzers

2017-12-01 Thread Mike Lichtman via Elecraft

It would be nice if Elecraft had their own branded analyzer. It could be a semi 
kit like the 
graphing one being sold from Germany. 73 Mike KF6KXG 
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Re: [Elecraft] Antenna Analyzer (FA-VA4)

2017-12-01 Thread Peter Eijlander (PA0PJE)


John,

I saw that one on FunkAmateur/Box73, they sell the kit.

What appeals me is the price (155 euro), the simplicity the way it can 
be built, the features, apart form being a nice graphical analyzer it's 
much more like a signal generator from 100 kHz to 100 MHz. It's readable 
in direct sunlight due to it's LCD type (like te one on a K3 even the 
same backlight color) And the power supply: it uses two AA cells.


I have it and I can say: Highly recommended.

72/73
Peter - PA0PJE

PS No connection to FA/Box73...


Op 2017-12-01 13:57 schreef John Harper:

I highly recommend this one - cost effective, easy to build and compares
favorable to more expensive models:
https://ae5x.blogspot.com/2017/10/new-antenna-analyzer.html

More here:
https://ae5x.blogspot.com/2017/11/a-brief-comparison-of-two-antenna.html


73,
John AE5X
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Mike Cox

These were very useful devices from "back in the day". I see a couple 
available on ebay by searching for "Palomar noise bridge"


Mike, AB9V


On 12/1/2017 7:49 AM, w5...@comcast.net wrote:

just a quick question for the collective group here. I have built up my KX-2 
travel kit. The first week of november I took it with me to a  cabin I leased 
outside of Gatlinburg, TN for some portable operating when I wasn’t up in the 
mountains hiking. I took m y Super Antenna MP-1 plus the parts to throw up a 
full wave loop for 40M. I did throw the loop up, and it out performed the MP-1 
by kudo’s.  But it struck me that it might be nice to add a small antenna 
analyzer to my kit.
I don’t need a big full size MFJ, which I do have. But something small.  Any 
experience here y’all?

thanks in advance for your answers

Ronnie W5SUM
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Dave Cole (NK7Z)

Having a graph of the entire band is so helpful, The AA series make for 
a single button test...  You adjust, then hit the go button.  You then 
see exactly what happened to your SWR dip.  Did it go too far, not far 
enough, etc.


Others, you have to fuss with knobs to find the dip, then remember the 
last reading...  Seems like a small item, but it is massively helpful 
when tuning up an antenna.  Takes me 20 minutes to tune a 6BTV now.  For 
an example of charts the AA series puts to computers see a short blog 
post I did on tuning up a 6BTV at:


http://nk7z.net/notes-on-tuning-a-6btv/

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 12/01/2017 05:25 AM, Michael Walker wrote:

I would have to agree.  the Rigexpert AA series.

Well made, drop proof and stand alone.

Mike va3mw


On Fri, Dec 1, 2017 at 8:23 AM, John Oppenheimer  wrote:


The SARK 110 is very small with many features:

http://www.sark110.com/

John KN5L
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[Elecraft] For sale

2017-12-01 Thread Sid Leben

I have a Sark 110  Antenna Analyzer for purchase.  Used twice

Cost, incl. fgt.  $ 250.00 CONUS

Sid Leben
KC2EE
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[Elecraft] Eleraft list

2017-12-01 Thread Paul (Tex) Herson via Elecraft

For some reason I am no longer able to post?
73 Texka5y
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Bob N3MNT

I have had good luck with this one.  Very small and works well.
https://youkits.com/products/youkits-fg-01-1-72mhz-antenna-analyser



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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Jim Sheldon

I was introduced to the SARK-110 several years ago and besides being an 
excellent antenna analyzer, it had one feature that nobody else had 
(when I bought the SARK) and that is called a "Time Domain 
Reflectometer".  This allows you to find breaks, impedance bumps and 
other anomalies in cable runs.


During my 20 years in the Army, I was introduced to a hugely expensive 
HP-140A oscilloscope with a TDR plug in.  We used it to find cuts in our 
buried coax where the local people were digging it up for the copper 
(back in 1967).  From that point on, I always wanted a TDR but they were 
way too expensive (even used) for a poor ham to even consider until I 
was introduced to the SARK by a good friend at the "OzarkCon" QRP 
convention.  It paid for itself quickly by finding where a gopher (or 
mole) had chewed mostly through some buried coax I had going to a 
vertical in the back yard.  The SARK's TDR pinpointed the break within a 
foot and it was probably more accurate than that as my measurements when 
following the cable were somewhat sloppy.


It also makes a pretty decent signal generator as well, can be 
calibrated against WWV with not too much effort, but the minimum signal 
you can output is 50 microvolts (S9) so a good external step attenuator 
is needed along with double shielded cables to minimize feedthrough of 
the SARK's output signal.   Oh yes, I did mention, it's an excellent 
antanna analyzer as well and it will do Smith Chart plots and other 
stuff too.  You can control it with a computer via USB too.


No financial interest in the company, just a very happy user.

Jim - W0EB

-- Original Message --
From: "John Oppenheimer" 
To: elecraft@mailman.qth.net
Sent: 12/1/2017 7:23:20 AM
Subject: Re: [Elecraft] Antenna Analyzer


The SARK 110 is very small with many features:

http://www.sark110.com/

John KN5L
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Michael Walker

I would have to agree.  the Rigexpert AA series.

Well made, drop proof and stand alone.

Mike va3mw


On Fri, Dec 1, 2017 at 8:23 AM, John Oppenheimer  wrote:

> The SARK 110 is very small with many features:
>
> http://www.sark110.com/
>
> John KN5L
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread John Oppenheimer

The SARK 110 is very small with many features:

http://www.sark110.com/

John KN5L
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[Elecraft] FR - KX2 max output now 12 watts (experimental)

2017-12-01 Thread John Oppenheimer

Used the new FW during my early morning 40M CW session. Used KX2 #80
with external LiFePO4 battery and inline W1 Power Meter. Antenna SWR =
1.3. The W1 12W LED does turn on. Measured DL1 power is 11.8 watts.
Ambient operating temperature was 22 C.

Sent many CQs before receiving an answer. Had two long QSOs. Maximum PA
temperature during CQs and conversations was 41 C.

John KN5L
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread Dave Cole (NK7Z)


The AA series from Rigexpert is also very lightweight...

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 12/01/2017 04:53 AM, John Stengrevics wrote:

The RigExpert line is small.

73,

John
WA1EAZ


On Dec 1, 2017, at 7:49 AM,   wrote:

just a quick question for the collective group here. I have built up my KX-2 
travel kit. The first week of november I took it with me to a  cabin I leased 
outside of Gatlinburg, TN for some portable operating when I wasn’t up in the 
mountains hiking. I took m y Super Antenna MP-1 plus the parts to throw up a 
full wave loop for 40M. I did throw the loop up, and it out performed the MP-1 
by kudo’s.  But it struck me that it might be nice to add a small antenna 
analyzer to my kit.
I don’t need a big full size MFJ, which I do have. But something small.  Any 
experience here y’all?

thanks in advance for your answers

Ronnie W5SUM
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[Elecraft] Antenna Analyzer

2017-12-01 Thread John Harper

I highly recommend this one - cost effective, easy to build and compares
favorable to more expensive models:
https://ae5x.blogspot.com/2017/10/new-antenna-analyzer.html

More here:
https://ae5x.blogspot.com/2017/11/a-brief-comparison-of-two-antenna.html


73,
John AE5X
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Re: [Elecraft] Antenna Analyzer

2017-12-01 Thread John Stengrevics

The RigExpert line is small.

73,

John
WA1EAZ

> On Dec 1, 2017, at 7:49 AM,   wrote:
> 
> just a quick question for the collective group here. I have built up my KX-2 
> travel kit. The first week of november I took it with me to a  cabin I leased 
> outside of Gatlinburg, TN for some portable operating when I wasn’t up in the 
> mountains hiking. I took m y Super Antenna MP-1 plus the parts to throw up a 
> full wave loop for 40M. I did throw the loop up, and it out performed the 
> MP-1 by kudo’s.  But it struck me that it might be nice to add a small 
> antenna analyzer to my kit.
> I don’t need a big full size MFJ, which I do have. But something small.  Any 
> experience here y’all?  
> 
> thanks in advance for your answers
> 
> Ronnie W5SUM
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[Elecraft] Antenna Analyzer

2017-12-01 Thread w5sum

just a quick question for the collective group here. I have built up my KX-2 
travel kit. The first week of november I took it with me to a  cabin I leased 
outside of Gatlinburg, TN for some portable operating when I wasn’t up in the 
mountains hiking. I took m y Super Antenna MP-1 plus the parts to throw up a 
full wave loop for 40M. I did throw the loop up, and it out performed the MP-1 
by kudo’s.  But it struck me that it might be nice to add a small antenna 
analyzer to my kit.
I don’t need a big full size MFJ, which I do have. But something small.  Any 
experience here y’all?  

thanks in advance for your answers

Ronnie W5SUM
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