Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Jim Brown]

On 9/3/2013 9:16 PM, Don Wilhelm wrote:
I use paralleled dipoles here, and I have limited the number of bands 
on a single feedline to 3 bands, so I have one for 20, 15, and 10 
meters, and another for 30, 17, and 12.  The wires are spaced about 1 
foot apart with PVC spreaders. 


I like fan dipoles a lot, and quickly came to all of the same 
conclusions you did. One thing I learned from modeling is that the 
lowest frequency band has the same SWR bandwidth of a single dipole, but 
the dipoles for higher frequencies have roughly half the SWR bandwidth.


73, Jim K9YC
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Don Wilhelm]

I use paralleled dipoles here, and I have limited the number of bands on 
a single feedline to 3 bands, so I have one for 20, 15, and 10 meters, 
and another for 30, 17, and 12.  The wires are spaced about 1 foot apart 
with PVC spreaders.


Tuning them is a bit of a challenge, but if one tunes the lowest band 
first, and then progresses to the next higher band, it can be done.  Do 
not try to mix 3rd harmonic bands such as 40 meters and 15 meters, or 80 
meters and 30 meters.


I do have a 3rd dual band for 80 and 40, but the radiators are arranged 
at right angles to each other so there is little interactions between 
those 2 bands.


73,
Don W3FPR

On 9/3/2013 11:35 PM, Charlie T, K3ICH wrote:
I remember trying to tune a four pair parallel wire dipole for 20, 17 
, 15 and 10 M.  What a bear.  Tweak one band and it would screw up the 
others.  I finally got it tuned, but had to completely replace all the 
wires since I had chopped and re-soldered all of them so many times.   
I used ½" PVC pipe spreaders which kept the four wires about 2" from 
each other. Once up, it would have been impossible to re-deploy due to 
tangles.




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Re: [Elecraft] OT: Beware

[Don Wilhelm]

Dick,

I get those things occasionally, and I put them directly into my junk 
mail folder and forward them to the phishing email for my ISP provider.  
Although they look real, careful inspection shows that they are not from 
the ISP provider.  My ISP would never ask for an account number and 
password to be sent via email.


Be safe and be aware, call the phone number on your billing account for 
your ISP before sending email to any requests like that.


73,
Don W3FPR

On 9/3/2013 11:24 PM, Richard Fjeld wrote:
A couple days ago, someone sent a post saying his email got hacked and 
apologized for any spam we may get.


I don't know if the two events are related, but I am now getting phony 
emails supposedly from my email provider asking me to verify my 
account by giving account name and password.


Beware!



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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[EricJ]

I had a HyTower in the late 60's. It worked well for me for several 
years in two locations. Istill haven't figured out how it worked 
exactly. I would sure like to hear an explanation of what those stubs 
actually did and how they were determined. Somebody must have written an 
analysis, but I have yet to find one.


Eric
KE6US

On 9/3/2013 8:35 PM, Charlie T, K3ICH wrote:
Remember the old Hy-Gain "Hy-Tower" ?  It had tuning stubs brought out 
from various places in order to provide resonance on 10, 15 & 20 M, 
maybe even one for 40M.  I have a manual around here but am too lazy 
to go find it. Anyway, I believe it was 57 feet overall and was rated 
for 80 - 10 M.  You could add a base loading coil and an additional 
length of wire off the top mast for 160M.  With an adequate radial 
system, they were the "cat's meow" of verticals back then.   I always 
wondered how the connection points for those "resonators" was 
determined. Probably to limit interaction with other bands (??)  Maybe 
some sort of similar set-up could be done with parallel wire stubs.


I remember trying to tune a four pair parallel wire dipole for 20, 17 
, 15 and 10 M.  What a bear.  Tweak one band and it would screw up the 
others.  I finally got it tuned, but had to completely replace all the 
wires since I had chopped and re-soldered all of them so many times.   
I used ½" PVC pipe spreaders which kept the four wires about 2" from 
each other.   Once up, it would have been impossible to re-deploy due 
to tangles.


73, Charlie k3ICH


- Original Message - From: "Jim Brown" 


To: 
Sent: Tuesday, September 03, 2013 11:03 PM
Subject: Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners



On 9/3/2013 7:30 PM, Fred Jensen wrote:
With the KPA500 at 500W, on 40m, I get a lot of RF from the GAP 
screwing up things like the WinKey, the laptop, and various other 
digital gadgets.


The first thing I would do is put a serious ferrite choke on the coax 
at the antenna.  If that doesn't fix it, I'd say it's radiation from 
the antenna itself.


73, Jim
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Charlie T, K3ICH]

Remember the old Hy-Gain "Hy-Tower" ?  It had tuning stubs brought out from 
various places in order to provide resonance on 10, 15 & 20 M, maybe even 
one for 40M.  I have a manual around here but am too lazy to go find it. 
Anyway, I believe it was 57 feet overall and was rated for 80 - 10 M.  You 
could add a base loading coil and an additional length of wire off the top 
mast for 160M.  With an adequate radial system, they were the "cat's meow" 
of verticals back then.   I always wondered how the connection points for 
those "resonators" was determined.  Probably to limit interaction with other 
bands (??)  Maybe some sort of similar set-up could be done with parallel 
wire stubs.


I remember trying to tune a four pair parallel wire dipole for 20, 17 , 15 
and 10 M.  What a bear.  Tweak one band and it would screw up the others.  I 
finally got it tuned, but had to completely replace all the wires since I 
had chopped and re-soldered all of them so many times.   I used ½" PVC pipe 
spreaders which kept the four wires about 2" from each other.   Once up, it 
would have been impossible to re-deploy due to tangles.


73, Charlie k3ICH


- Original Message - 
From: "Jim Brown" 

To: 
Sent: Tuesday, September 03, 2013 11:03 PM
Subject: Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners



On 9/3/2013 7:30 PM, Fred Jensen wrote:
With the KPA500 at 500W, on 40m, I get a lot of RF from the GAP screwing 
up things like the WinKey, the laptop, and various other digital gadgets.


The first thing I would do is put a serious ferrite choke on the coax at 
the antenna.  If that doesn't fix it, I'd say it's radiation from the 
antenna itself.


73, Jim
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[Elecraft] OT: Beware

[Richard Fjeld]

A couple days ago, someone sent a post saying his email got hacked and 
apologized for any spam we may get.


I don't know if the two events are related, but I am now getting phony 
emails supposedly from my email provider asking me to verify my account 
by giving account name and password.


Beware!

Dick, n0ce


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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Jim Brown]

On 9/3/2013 7:30 PM, Fred Jensen wrote:
With the KPA500 at 500W, on 40m, I get a lot of RF from the GAP 
screwing up things like the WinKey, the laptop, and various other 
digital gadgets. 


The first thing I would do is put a serious ferrite choke on the coax at 
the antenna.  If that doesn't fix it, I'd say it's radiation from the 
antenna itself.


73, Jim
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Fred Jensen]

On 9/3/2013 5:23 PM, Jim Brown wrote:


The practical problem with sticking a ground plane on your roof is that
it needs at least two radials per band, but there are several multiband
antennas for those bands configured as vertical dipoles that work well
without radials. That's the basis of my earlier statement that a
roof-mounted well-designed multi-band vertical dipole is a far better
antenna above 20M than the 43 ft vertical.


I bought a GAP Titan, mainly for WARC bands, my low-band ladder-line fed 
sloping vee [135' on a side] gets really complicated above 40m.  I've 
observed:


The GAP is about 1-2 S-units noisier.  Not surprising, it's a vertical.

It works on the WARC bands, satisfying my need, I've never used it on 
the "contest" bands.


I think it's a center-fed half-wave vertical dipole.  It does have a 
square wire loop thingy near the bottom that seems to deal with 40m, 
pretty big.


No radials, but with the big square loop, it might as well have them.

I'm fairly convinced the shield of the coax plays a part on at least a 
couple of bands, maybe all.  They warn you to route the coax out a hole 
in the side of the support mast, not out the bottom.


I installed it on a 3" riser pipe that goes straight up inside the wall 
from a 2' square utility box in the wall under my radio desk.  It has a 
standard weatherhead on the top and carries the coax to the tower on a 
steel messenger.  This was a misteak.  With the KPA500 at 500W, on 40m, 
I get a lot of RF from the GAP screwing up things like the WinKey, the 
laptop, and various other digital gadgets.  Fortunately I don't use it 
on 40m.  It's directly over my head, I probably could have considered 
that but of course didn't.  On 160, my sloping Vee also keys several of 
the irrigation control valves ... they're not exactly up to QRQ and the 
pipes bang really bad.


I've modeled the 43' vertical, both on the ground and in the air.  I've 
tried one, on the ground with a not-too-shabby radial system.  It 
appears to me that it is:


A vertical

43' seems to garner some friendlier feed impedances on some bands than 
some other lengths, and it's physically manageable in restricted spaces, 
HOA or otherwise


It's a vertical

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

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[Elecraft] FS: Factory Assembled KPA500

[Robert Vargas - KP4Y]

I'm selling my 8 months old, factory assembled, KPA500, S/N 1203. The amp is in 
like new condition. I'm asking $2,050 with the KPAK3AUX cable kit and shipping 
within CONUS included in the deal. Photos are available upon request.

73,
Robert-KP4Y

Sent from my mobile phone.

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[Elecraft] Fw: 43' Vertical

[riese-k3djc]

last year I used some telescoping mast
( ended up needing to guy it )
made a 40 meter vert and ran out 20 or so 
short to long above the ground radials,,, longer ones through a tree
up perhaps 18 ft above the ground,,, the radiator is off the side of a
porch
added PVC outriggers and added 30 meter 20/and 10 meter sections
could add more bands,,, the 40 meter section worked on ?? 15 meters
tied them all together at the base of the tubing
works like a champ
a real dx antenna on 40 after dark
no need for a tuner as each section is on frequency
not sure what all the fuss is about a 43 ft radiator
I have considered replacing the mast with aluminium tubing
but it is still up and cost  ?? less than a 100 bux for the plastic mast
40 meter wire runs inside the mast
the whole thing is mounted on a back enclosed porch and the radials fan
out
across the roof of the porch and tree
I see no problem doing the same thing off an open deck and just run the
radials
stapled under the deck 

Bob K3DJC
r

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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Lewis Phelps]

This has been an excellent discussion on the 43 foot vertical. I have one 
installed in my back yard (DX Engineering). Very happy with it overall. It's 
been an excellent performer on 20 meters, and good on other bands; I'm a casual 
DX-er, but have worked 5 continents SSB with the 12 watt output of my barefoot 
K3.

Phil Salas had an excellent article in QST a year or so ago describing how to 
install switchable loading coils at the foot of the antenna, to mitigate 
low-band problems. 

I match my 43 footer with a home-brew tuner -- a fully switch-configurable 
L-tuner that has a 27 µH variable inductor, 600 pFd of air variable 
capacitance, and two additional 600 pFd fixed caps that can be switched in 
parallel with the variables to provide up to 1800 pFd capacitance.  With this 
tuner, I can get a match across the full spectrum of all bands except 160 
meters, where I can get below 2:1 only in the top 200 khz (without Phil's 
loading coils).  I recognize, of course, that the line losses are severe on the 
low bands, even with a run of only 60 feet of 9913 Belden coax. (A more 
detailed description of this tuner project is available at http://n6lew.us, if 
anyone's interested.)

For the high bands, I already have both a home brew 6 meter j-pole and a 
three-element quad. I'm currently working on construction of a 17-15-12-10 
meter hexbeam, to overcome the high radiation angle of the vertical on the 
higher bands.  (Although most published hexbeam designs also in include 20 
meters, I'm omitting that band from my project to reduce antenna size for 
visibility reasons, and because the vertical performs quite well on 20, as 
noted.

Overall, I'd say that the 43 foot vertical pairs up well with the K3, although 
I can't speak to the ability of the Elecraft auto-tuner to match the load on 
all bands. The simple L-tuner does so quite nicely.

Lew Phelps N6LEW
Pasadena, CA DM04wd
Elecraft K3-10 
Yaesu FT-7800 
l...@n6lew.us
www.n6lew.us



On Sep 3, 2013, at 5:23 PM, Jim Brown  wrote:

> YES!  You've hit the nail beautifully on the head, Ron. I just finished 
> preparing slides comparing a 43 ft ground-mounted vertical with a good radial 
> system on 20M, 15M, and 10M with a classic ground plane at 30 ft and vertical 
> dipole with a base at 30 ft for those bands.Looking at performance below 
> about 15 degrees elevation, the three antennas are roughly equal at the low 
> angles on 20M, but both the ground planes and the vertical dipole blow the 43 
> ft vertical away on 15M and 10M (the difference ranges between 6-8 dB, 
> depending on ground conductivity).
> 
> The practical problem with sticking a ground plane on your roof is that it 
> needs at least two radials per band, but there are several multiband antennas 
> for those bands configured as vertical dipoles that work well without 
> radials. That's the basis of my earlier statement that a roof-mounted 
> well-designed multi-band vertical dipole is a far better antenna above 20M 
> than the 43 ft vertical.
> 
> 73, Jim K9YC
> 
> On 9/3/2013 2:28 PM, Ron D'Eau Claire wrote:
>> An interesting point I noticed modeling a 43 foot vertical was that, while
>> on 10 meters the main lobe is up around 50 degrees, the "gain" at low angles
>> is similar to a 1/4 wave "ground plane" antenna cut for 10 meters. That's
>> because the longer antenna has significant gain over a 1/4 wave antenna so
>> the amount of radiation down at the lower angles is about the same as a 1/4
>> wave.
>> 
>> That's for a ground mounted 1/4 wave on 10 meters. Ideally you want to raise
>> the 10 meter vertical at least 1/2 wavelength - roughly 16 feet - then you
>> get much better low angle radiation from the 1/4 wave because the ground
>> absorbs much less of the lowest angle radiation. Installed that way, the 1/4
>> wave shines over the 43 footer. Also, of course, there is less interference
>> with the signal by foliage, buildings, etc.
> 
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Re: [Elecraft] K3 and HRD 6.0.3.135

[Gary K9GS]

Not singling you out Bill, but isn't a more appropriate place for HRD's 
shortcomings and lack of support on the HRD mailing list?


I'm to the point of creating a HRD filter in my e-mail client.



On 9/3/2013 7:09 PM, Bill wrote:
I don't think these issues are a priority to the HRD folks. They have 
been well known and documented for a very long time and were among the 
bugs coming from the 5.xx versions.


For that reason alone, I have stayed with a 5.xx version.

Bill W2BLC
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--


73,

Gary K9GS

Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
CW Ops #1032   http://www.cwops.org



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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Jim Brown]

YES!  You've hit the nail beautifully on the head, Ron. I just finished 
preparing slides comparing a 43 ft ground-mounted vertical with a good 
radial system on 20M, 15M, and 10M with a classic ground plane at 30 ft 
and vertical dipole with a base at 30 ft for those bands.Looking at 
performance below about 15 degrees elevation, the three antennas are 
roughly equal at the low angles on 20M, but both the ground planes and 
the vertical dipole blow the 43 ft vertical away on 15M and 10M (the 
difference ranges between 6-8 dB, depending on ground conductivity).


The practical problem with sticking a ground plane on your roof is that 
it needs at least two radials per band, but there are several multiband 
antennas for those bands configured as vertical dipoles that work well 
without radials. That's the basis of my earlier statement that a 
roof-mounted well-designed multi-band vertical dipole is a far better 
antenna above 20M than the 43 ft vertical.


73, Jim K9YC

On 9/3/2013 2:28 PM, Ron D'Eau Claire wrote:

An interesting point I noticed modeling a 43 foot vertical was that, while
on 10 meters the main lobe is up around 50 degrees, the "gain" at low angles
is similar to a 1/4 wave "ground plane" antenna cut for 10 meters. That's
because the longer antenna has significant gain over a 1/4 wave antenna so
the amount of radiation down at the lower angles is about the same as a 1/4
wave.

That's for a ground mounted 1/4 wave on 10 meters. Ideally you want to raise
the 10 meter vertical at least 1/2 wavelength - roughly 16 feet - then you
get much better low angle radiation from the 1/4 wave because the ground
absorbs much less of the lowest angle radiation. Installed that way, the 1/4
wave shines over the 43 footer. Also, of course, there is less interference
with the signal by foliage, buildings, etc.


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[Elecraft] 43' Vertical - mine is 31ft

[Wim Dewilder]

I have a 31 foot vertical myself (S9 V31) and since I have the KPA500 I
use the 600 WATT  MFJ remote auto tuner.
With about 8 radials of 30 ft it works well on 40m - 10m. 
The MFJ can't tune it on 80m but the internal K3 tuner does.
Feedline is 100ft of RG213

some more pics here
http://qsl.net/k6te/antenna.htm
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Re: [Elecraft] K3 and HRD 6.0.3.135

[Bill]

I don't think these issues are a priority to the HRD folks. They have 
been well known and documented for a very long time and were among the 
bugs coming from the 5.xx versions.


For that reason alone, I have stayed with a 5.xx version.

Bill W2BLC
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Re: [Elecraft] 43' Vertical

[Jim Brown]

On 9/3/2013 4:22 PM, k...@comcast.net wrote:


With the SGC tuner I could operate anywhere from 160 - 6 meters. 
Unfortunately a nearby lightning strike took out a few diodes in the 
SGC and I replaced it with a 4:1 balun and used the internal tuner in 
my K3.


Thanks Pete.  What is the feedline?  How long is it?

73, Jim K9YC
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[Elecraft] 43' Vertical

[ku2c]

Jim, In June a put a ZeroFive 43'er up and initially fed it with an SGC tuner 
at the base ( I live on the water on the Jersey coast and only had about 10 
random length radials and one ground rod.) 


With the SGC tuner I could operate anywhere from 160 - 6 meters. Unfortunately 
a nearby lightning strike took out a few diodes in the SGC and I replaced it 
with a 4:1 balun and used the internal tuner in my K3. Worked fine 80 thru 10, 
on 160 it was difficult to find a match near 2:1. Similarly on 6 meters - a 
match was only possible on a narrow band just above 50.1mhz. 


>From June to early August (WAE weekend) I logged about 120 countries. 


Pete // KU2C 

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[Elecraft] K3 NR needs improvement

[RLVZ]

I agree with the posts that would like the K3 NR to be  improved.  I've 
used 3 different K3's at several different  QTH's, using all of the available 
settings, and the NR seldom  helped.  That said, I've found the NR on some 
other radios to work  very well, so it can be done.
 
73,
Dick- K9OM
 
 
 
 
In a message dated 9/3/2013 5:23:53 P.M. Central Daylight Time,  
elecraft-requ...@mailman.qth.net writes:

>I  have to say that I agree with you Allen. If there's one thing I'm very  
disappointed with, it's the noise reduction system in general. In my  
experience the noise reduction, notch and AFP functions are not of any use to  
me 
as a CW op. On the other hand, the narrow filter is  amazing.

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[Elecraft] Portable"ARES/RACES" KX3 100W ATU Recommendations

[Shotblocker]

I am New to the Elecraft family just purchased a loaded KX3 to replace my
TenTec Scout. I have also purchased two(2) amps a HL45B & HLA150, 40 &
125watt respectively. That said, I am looking for a lightweight, good to
about 100 + watts portable maybe battery powered ATU. All ideas welcome!!! I
was thinking about the LDG Z100? Thank you in advance!  "KB1YAI" 73s



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Re: [Elecraft] What items come standard with the KX3 factory assembled?

[Don Wilhelm]

The options and cables for the factory assembled KX3 is the same as that 
for the kit.  If you oprder an option, it will be installed, there is no 
"standard" set of options, each one is separately configured to the 
customer's order.  If you want the microphone, paddles, cable set, etc., 
just add them to your order.


Yes, it comes with the KX3 owner's manual.  If you want a preview of the 
manual, you can download it from the Elecraft website.


73,
Don W3FPR

On 9/3/2013 2:35 PM, dw wrote:

What items come as part of the KX3 factory assembled unit?
I’m guessing it comes with an operator’s manual?
Are there any cables that come with it?

Thanks in advance!  :-]
N1BBR

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[Elecraft] KX3 field-test firmware rev. 1.61 -- looking for testers

[Wayne Burdick]

Hi all,

The rev 1.61 KX3 firmware release has some important bug fixes and general 
improvements (see release notes below, which cover everything added since rev 
1.57). If you have time to test this over the next day or two, please email me 
(not the list) and I'll send you a copy. As soon as we get confirmation that 
everything is working well, we'll update this to beta status.

73,
Wayne
N6KR


* * *

MCU 1.61 / DSP 1.23, 8-31-2013

* AM TRANSMIT IMPROVED: Depth of modulation increased.

* SSB SPEECH COMPRESSION IMPROVED: Significant cleanup of opposite-sideband 
intermodulation (IMD) products with speech compression turned on.

* CURRENT DRAIN LIMITS ADJUSTED: Receive and transmit current drain limits were 
set a bit too low, occasionally causing an unexpected roll-back of power output 
or turn-off of the KX3. Note: If rollback of power output still occurs, it is 
probably because the supply voltage is dipping below 11 V on keydown, or 
because of excessive transmit current drain, possibly due to a low-impedance 
load.

* ESSB MODE IMPROVED: Speech compression is now automatically disabled when 
ESSB mode is turned on. This completes the ESSB implementation. To turn on 
ESSB, use the TX ESSB menu entry. Tap ‘1’ to turn ESSB on/off; use VFO A to 
adjust the transmit bandwidth from 3.0 to 4.0 kHz. (These menu changes cannot 
be made while in transmit mode.)

* ROOFING FILTER USE CONFIGURABLE IN SSB MODE: Roofing filter FL2 (3 kHz) can 
now be inserted when the upper edge of the receive passband is either 2.4 kHz 
(original value) or 2.9 kHz. When the passband edge is higher than this point, 
FL1 is used (wide filter). If the KXFL3 filter option is not installed, FL1 is 
always used.

If you frequently encounter QRM in SSB modes, use the 2.9 kHz selection; this 
will insert FL2 when normal passband settings are used. If QRM is less of an 
issue or you frequently use ESSB, use the 2.4 kHz selection (original value); 
this will insert FL1 for normal passband settings. The PBT knob can override 
either selection (see below).

To select the desired FL2 insertion point: Locate the PBT SSB menu entry. Tap 
‘1’ to select either 2.4 or 2.9 kHz using the criteria above.

Impact of FL2 configuration on the NORM function: 

If 2.4 kHz is selected, NORMalizing the passband (by holding the PBT knob) will 
select FL1 (wide filter). If 2.9 kHz is selected, NORM selects FL2 (narrow). 
Impact of FL2 configuration on the PBT I/II functions: When LO-HI CUT is in 
effect for SSB, the FL2 setting determines when FL2 is inserted as HI CUT (PBT 
II) is adjusted (2.4 or 2.9 kHz). When WIDTH / SHIFT (NOR) is in effect, the 
FL2 setting affects both adjustments. For example, with the passband 
NORMalized, reducing WIDTH (PBT I) inserts FL2 at either 1.7 kHz or 2.8 kHz, 
for the 2.4 and 2.9 kHz FL2-insert selections, respectively. However, the 
insertion point for FL2 is also affected by the SHIFT setting (PBT II).

Note on SSB demodulation methods used for FL1 vs. FL2: 

When FL1 is in selected (wide filter), the KX3 uses conventional SSB 
demodulation, providing the best overall audio fidelity. When FL2 is selected 
(3 kHz filter), the KX3 uses “Weaver” SSB demodulation, which introduces a 
narrow 1.5 kHz notch into the receive passband as part of the DSP algorithm. 
This notch typically has no impact on speech intelligibility, but it can sound 
slightly different to an operator who is most concerned about fidelity.




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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Ron D'Eau Claire]

An interesting point I noticed modeling a 43 foot vertical was that, while
on 10 meters the main lobe is up around 50 degrees, the "gain" at low angles
is similar to a 1/4 wave "ground plane" antenna cut for 10 meters. That's
because the longer antenna has significant gain over a 1/4 wave antenna so
the amount of radiation down at the lower angles is about the same as a 1/4
wave. 

That's for a ground mounted 1/4 wave on 10 meters. Ideally you want to raise
the 10 meter vertical at least 1/2 wavelength - roughly 16 feet - then you
get much better low angle radiation from the 1/4 wave because the ground
absorbs much less of the lowest angle radiation. Installed that way, the 1/4
wave shines over the 43 footer. Also, of course, there is less interference
with the signal by foliage, buildings, etc. 

That's why so-called "vertical ground plane" antennas are so popular on the
higher HF bands. 

73, Ron AC7AC 

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Re: [Elecraft] K3 and HRD 6.0.3.135

[Mike Flowers]

I have reported these as bugs through their Mantis system.   What priority
they get for a fix remains to be seen.

- 73 de Mike, K6MKF, W6NAG, 3D2C, NCDXC, IDXG, K3-P3-KPA500-KAT500 Addict,
Maui


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Basberg
Sent: Tuesday, September 03, 2013 2:03 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 and HRD 6.0.3.135

I tried noise reduction/auto notch/manual notch buttons and they do not
change color to show engagement.  I used the schemes available and they all
had the same problem.

I can see whether they are engaged on the K3 screen, so not such a big
problem.  But problem is there.

 

73 Doug N8VY

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Re: [Elecraft] KX3 WSJT-X OS X

[Matt VK2RQ]

You're probably overdriving the mic level input on the radio -- you probably 
don't need any more than mic gain 4 or 5 on the KX3.

73, Matt VK2RQ

On 04/09/2013, at 5:06 AM, Bob  wrote:

> Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 
> watts. 
> 
> The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 
> bars.  It blinks and then drops out.  I am using a dummy load for the antenna 
> and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing 
> nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed. 
>  It seems like the narrow audio of the JT sigs won't modulate the KX3.  
> Anybody else doing this exercise or am I messing with the bleeding edge?  
> 
> I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set 
> from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of 
> interaction with ALC control..
> 
> Thanks, 
> 73 de Bob w7wo
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[Elecraft] K3 and HRD 6.0.3.135

[Doug Basberg]

I tried noise reduction/auto notch/manual notch buttons and they do not
change color to show engagement.  I used the schemes available and they all
had the same problem.

I can see whether they are engaged on the K3 screen, so not such a big
problem.  But problem is there.

 

73 Doug N8VY

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Re: [Elecraft] k3 sdr-ir pan adapter

[Wes (N7WS)]

When you ask to be contacted off-list about a question posted to the list, no 
one knows whether you got an answer or not.


So here's my answer: You need to download and install LP-Bridge. 
http://www.telepostinc.com/LPB.html


Create a virtual port in LP-Bridge and configure SDR-IQ/SpectraVue by selecting 
the K3 In the ExtRadio tab and the virtual port that you created in LP-Bridge.  
Make sure the baud rates match and check, the Keep Same Center Freq box.


You can create other virtual ports that connect to logging programs, etc that 
need freq/band data from the K3.


Wes

On 8/31/2013 4:04 PM, l s wrote:

Just acquired a rf space sdr- iq receiver and I would like to contact someone 
using the same set up.

I managed to make it work as a stand alone receiver with Spectravue and 
sdr-radio.com v 1.5 but
I can't get either of the software programs to control the K3. I have checked 
the rs 232 cable and the pin out is correct.
This cable works fine with lp pan and powersdr-if. Any help would be 
appreciated. Please contact me off the reflector
at- lgs42...@yahoo.com

Tnx & 73

Lou KI6UM


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Re: [Elecraft] KX3 WSJT-X OS X --Update

[Lyle Johnson]

Try setting mic gain to 0, then increasing it slowly to get to the 4 or 
5 bars of ALC.  If for some reason the JT Tx signals are significantly 
higher in amplitude than the PSK31 Tx signals coming from the PC, the 
ALC in the KX3 may be overcompensating.  The workaround at present is to 
have too little gain and increase it, rather than depending on the Mic 
ALC to perform large amounts of compensation.


Hope this helps,

73,

Lyle KK7P


Here might be a hint, but not sure..

http://g0mgx.blogspot.com/2013/07/jt-what-ah-jt9.html?m=1

w7wo ..


Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 
watts.

The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 
bars.  It blinks and then drops out.  I am using a dummy load for the antenna 
and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing 
nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed.  
It seems like the narrow audio of the JT sigs won't modulate the KX3.  Anybody 
else doing this exercise or am I messing with the bleeding edge?

I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set 
from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of 
interaction with ALC control..

Thanks,
73 de Bob w7wo
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[Elecraft] KX3 WSJT-X OS X --Update

[Bob]

Here might be a hint, but not sure..

http://g0mgx.blogspot.com/2013/07/jt-what-ah-jt9.html?m=1

w7wo ..


Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 
watts. 

The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 
bars.  It blinks and then drops out.  I am using a dummy load for the antenna 
and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing 
nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed.  
It seems like the narrow audio of the JT sigs won't modulate the KX3.  Anybody 
else doing this exercise or am I messing with the bleeding edge?  

I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set 
from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of 
interaction with ALC control..

Thanks, 
73 de Bob w7wo
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[Elecraft] What items come standard with the KX3 factory assembled?

[dw]

What items come as part of the KX3 factory assembled unit?
I’m guessing it comes with an operator’s manual?
Are there any cables that come with it?

Thanks in advance!  :-]
N1BBR

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[Elecraft] KX3 WSJT-X OS X

[Bob]

Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 
watts. 

The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 
bars.  It blinks and then drops out.  I am using a dummy load for the antenna 
and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing 
nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed.  
It seems like the narrow audio of the JT sigs won't modulate the KX3.  Anybody 
else doing this exercise or am I messing with the bleeding edge?  

I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set 
from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of 
interaction with ALC control..

Thanks, 
73 de Bob w7wo
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Jim Brown]

Thanks Mike.  Your observations about radiation angle and performance 
are in good agreement with my modeling. Yes, the secret sauce is that 43 
ft is 5/8 on 20M.


73, Jim K9YC

On 9/3/2013 11:17 AM, mikefur...@att.net wrote:

Hi Jim,

I use exactly that here in Tampa. My antenna is a stealth 43' of green 
18 gauge wire up a tree and 43' of the same horizontal hidden in the 
bushes. I am in an apartment. The feed point is about 10' above 
ground. I feed it with open wire line from a 4:1 balun on the back of 
my K3 with the internal tuner. I am guessing the feed line is about 
25'. It matches on 80-6 ... sometimes ... excessive rain causes a 
"HIGH CURRENT" on the radio and I just back down the power until it 
goes off.


I did tinker with different lengths of coax between the balun and the 
radio ... 10 feet of RG58 and the best SWR on 20 was 2:1 and 6 meters 
would have nothing to do with it. I have not experimented with the 
length of the open wire line ... the set up seems to work fine as I 
currently have it.


43' is a popular height because it is 5/8 on 20 and can provide "3db" 
gain. For me the antenna works very well on 40, 30, 20 and 17. It is 
very poor on 80 and the angle of radiation is a bit high on  15-10. I 
have worked locals on 6 (use a 6 m delta loop in attic the rest of the 
time). On 160 the tuner would have nothing to do with it. BUT on 160 
during the Stew Perry I did add a base loading coil and hid 1/4 radial 
in the bushes and worked up and down the East coast plus VEs and 
Carribian.


My current goal is DXCC on RTTY and only confirmed on LOTW. With this 
set-up and I am up to 65 countries with only 100 watts.


Hope this helps.

73, Mike WA5POK/4 Tampa


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Re: [Elecraft] new subscriber and first question

[mikefurrey]

I have a Collins 30L-1 I use with my K3. BUT several years ago (before I got 
the K3) I installed a "Soft-Key" kit from ... I think Harbach. Works fine 
and solved that problems


73, Mike WA5POK

--
From: "Vic K2VCO" 
Sent: Tuesday, September 03, 2013 12:14 PM
To: ; 
Subject: Re: [Elecraft] new subscriber and first question

No, the K3 CANNOT switch a negative voltage for keyout! It is a 
solid-state circuit which is quite robust (+200v at 5A), but only for 
positive DC voltages.


K3 schematics are here:



On 8/31/2013 3:52 AM, Doug Basberg wrote:

Hello;



I just put together my K3/100 with ATU.  What a great transceiver!



Now I need to hook it to my vintage Collins 30L-1 linear amp.  The manual
says the K3 can handle up to 200 volts on 'key out'.  That might mean I 
can

hook up directly to the linear.  One question is whether that also means
minus 200v.  The Collins has -170vdc on its connector.  I was thinking 
the
K3 uses relay contacts for the 'key out', but maybe not.  Second question 
is

whether the K3 schematics are available?



The powerful configurability of the K3 means I have a learning curve to 
go

thru.  I think this reflector will be a big help.  Searching the archives
will probably solve a lot of questions and then there is the 'live'
community.  Very good.  I also subscribed to the yahoo group.



73s Doug N8VY

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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: [Elecraft] KX3 and KPA100/KAT100

[Don Wilhelm]

Larry,

Sorry, but the KPA100 and KAT100 both depend on internal K2 signals for 
control - T-R switching, band selection, etc.
That makes the KPA100 an amplifier dedicated to the K2, and the KAT100 
autotuner is also dedicated to the K2.


73,
Don W3FPR

On 9/3/2013 1:15 PM, Larry Dodson wrote:

I have built the KPA100/KAT100 in a separate enclosure for my K2 and would
like to know if anyone has experience of using these two kits with a KX3?
73, Larry - G0IKE



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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[mikefurrey]

Hi Jim,

I use exactly that here in Tampa. My antenna is a stealth 43' of green 18 
gauge wire up a tree and 43' of the same horizontal hidden in the bushes. I 
am in an apartment. The feed point is about 10' above ground. I feed it with 
open wire line from a 4:1 balun on the back of my K3 with the internal 
tuner. I am guessing the feed line is about 25'. It matches on 80-6 ... 
sometimes ... excessive rain causes a "HIGH CURRENT" on the radio and I just 
back down the power until it goes off.


I did tinker with different lengths of coax between the balun and the radio 
... 10 feet of RG58 and the best SWR on 20 was 2:1 and 6 meters would have 
nothing to do with it. I have not experimented with the length of the open 
wire line ... the set up seems to work fine as I currently have it.


43' is a popular height because it is 5/8 on 20 and can provide "3db" gain. 
For me the antenna works very well on 40, 30, 20 and 17. It is very poor on 
80 and the angle of radiation is a bit high on  15-10. I have worked locals 
on 6 (use a 6 m delta loop in attic the rest of the time). On 160 the tuner 
would have nothing to do with it. BUT on 160 during the Stew Perry I did add 
a base loading coil and hid 1/4 radial in the bushes and worked up and down 
the East coast plus VEs and Carribian.


My current goal is DXCC on RTTY and only confirmed on LOTW. With this set-up 
and I am up to 65 countries with only 100 watts.


Hope this helps.

73, Mike WA5POK/4 Tampa
--
From: "Jim Brown" 
Sent: Monday, September 02, 2013 7:10 PM
To: "Reflector Elecraft" 
Subject: [Elecraft] 43 Ft Vertical and Elecraft Tuners

43 ft verticals have become a popular antenna, and while they have some 
strong points, they present a very high SWR on most bands, so they require 
a serious tuner to get them to load.


I'd like to know of any stations using a 43 Ft vertical as a multi-band 
antenna using nothing but an Elecraft antenna tuner for matching -- that 
is, no "baluns", transformers, loading coils, or additional matching 
networks.  I'd like to know the bands on which you are able to match it 
well enough to get full power from the rig (or the power amp). I'd like to 
know if the tuner is located at the base of the antenna, or, if in the 
shack, the length of feedline between antenna and tuner.


Thanks and 73, Jim K9YC


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Re: [Elecraft] KX3 and KPA100/KAT100

[Matt VK2RQ]

I think that would be problematic as the KPA100/KAT100 depends on the 
MCU/firmware in the K2 to control it. 

73, Matt VK2RQ

On 04/09/2013, at 3:15 AM, Larry Dodson  wrote:

> I have built the KPA100/KAT100 in a separate enclosure for my K2 and would
> like to know if anyone has experience of using these two kits with a KX3?
> 73, Larry - G0IKE
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Re: [Elecraft] K3 using Clear Speech Speaker

[Fred Smith]

Once I finally learned how to use it works very well, but it is "NOT" a
1-2-3 press for NR like many. With the K3 you can really customize it for
each and every type you encounter, like all things it could be
better..

I'm still waiting on the "PERFECT RADIO" a K4 maybe 8>)

73,
Fred/N0AZZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Allen Brier N5XZ
Sent: Tuesday, September 03, 2013 12:03 PM
To: elecraft@mailman.qth.net; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 using Clear Speech Speaker

Now that's something that Elecraft needs to work on, thier internal noise
reduction system. I find it almost useless, and I've tried it many times
with many settings.

Allen N5XZ


-Original Message-
>From: elecraft-requ...@mailman.qth.net
>Sent: Sep 3, 2013 11:00 AM
>To: elecraft@mailman.qth.net
>
>Message: 10
>Date: Tue, 3 Sep 2013 07:48:14 -0700
>From: "Ron Midwin" 
>To: 
>Cc: ronmidwin...@gmail.com
>Subject: [Elecraft] K3 using Clear Speech Speaker
>Message-ID: <001601cea8b4$9eae5d50$dc0b17f0$@mo-rep.com>
>Content-Type: text/plain;  charset="us-ascii"
>
>I've been using the Heil version of the Clear Speech Noise Reduction
Speaker
>for ~ 5 years.  It has a 5 position noise control and I usually leave it at
>1, which knocks down the noise without any negative effects on the sound.
>Heil no longer makes it, but I believe it uses similar circuitry.
>
> 
>
>My default setting is at 1 out of 5, and this cleans up the harsh noise
very
>nicely without noticeable audio degradation.  
>
> 
>
>When the noise gets really bad, I have used it all the way up to 5, and
>still don't find the audio objectionable.
>
> 
>
>I also have not had a lot of success with the K3 built in NR, but this is
>probably due to my lack of understanding how to use it; but since the Clear
>Speech works so well, I take the lazy way out.
>
> 
>
>If there's any good updated info on how to use the NR effectively, I'd be
>all ears.  Maybe someone who really has it working well can do a YouTube?
>
> 
>
>My 2 cents.
>
> 
>
>Ron
>
>KB6G
>
>K3 S/N 1997
>
> 
>
>P.S.  I still give the K3 a 5+
>
> 
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2242 / Virus Database: 3222/6134 - Release Date: 09/03/13

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Re: [Elecraft] K3 using Clear Speech Speaker

[Dave Hachadorian]

Allen's comment matches my experience exactly.

Dave Hachadorian, K6LL
Big Bear Lake, CA



-Original Message- 
From: Allen Brier N5XZ

Sent: Tuesday, September 03, 2013 10:02 AM
To: elecraft@mailman.qth.net ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 using Clear Speech Speaker

Now that's something that Elecraft needs to work on, thier 
internal noise reduction system. I find it almost useless, and 
I've tried it many times with many settings.


Allen N5XZ

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Re: [Elecraft] K3 using Clear Speech Speaker

[Allen Brier N5XZ]

1. K3 Noise reduction is next to useless
2. K3 Notch works great on SSB
3. K3 APF is occasionally useful (Elecraft needs to make the peak adjustable)
4. K3 Filtering is GREAT!

Allen N5XZ


-Original Message-
>From: Stephen Roberts 
>Sent: Sep 3, 2013 12:14 PM
>To: Allen Brier N5XZ 
>Subject: Re: [Elecraft] K3 using Clear Speech Speaker
>
>I have to say that I agree with you Allen. If there's one thing I'm very 
>disappointed with, it's the noise reduction system in general. In my 
>experience the noise reduction, notch and AFP functions are not of any use to 
>me as a CW op. On the other hand, the narrow filter is amazing.
>
>Steve, W1SFR
>
>
>
>On Sep 3, 2013, at 1:02 PM, Allen Brier N5XZ wrote:
>
>> Now that's something that Elecraft needs to work on, thier internal noise 
>> reduction system. I find it almost useless, and I've tried it many times 
>> with many settings.
>> 
>> Allen N5XZ
>> 
>> 
>> -Original Message-
>>> From: elecraft-requ...@mailman.qth.net
>>> Sent: Sep 3, 2013 11:00 AM
>>> To: elecraft@mailman.qth.net
>>> 
>>> Message: 10
>>> Date: Tue, 3 Sep 2013 07:48:14 -0700
>>> From: "Ron Midwin" 
>>> To: 
>>> Cc: ronmidwin...@gmail.com
>>> Subject: [Elecraft] K3 using Clear Speech Speaker
>>> Message-ID: <001601cea8b4$9eae5d50$dc0b17f0$@mo-rep.com>
>>> Content-Type: text/plain;   charset="us-ascii"
>>> 
>>> I've been using the Heil version of the Clear Speech Noise Reduction Speaker
>>> for ~ 5 years.  It has a 5 position noise control and I usually leave it at
>>> 1, which knocks down the noise without any negative effects on the sound.
>>> Heil no longer makes it, but I believe it uses similar circuitry.
>>> 
>>> 
>>> 
>>> My default setting is at 1 out of 5, and this cleans up the harsh noise very
>>> nicely without noticeable audio degradation.  
>>> 
>>> 
>>> 
>>> When the noise gets really bad, I have used it all the way up to 5, and
>>> still don't find the audio objectionable.
>>> 
>>> 
>>> 
>>> I also have not had a lot of success with the K3 built in NR, but this is
>>> probably due to my lack of understanding how to use it; but since the Clear
>>> Speech works so well, I take the lazy way out.
>>> 
>>> 
>>> 
>>> If there's any good updated info on how to use the NR effectively, I'd be
>>> all ears.  Maybe someone who really has it working well can do a YouTube?
>>> 
>>> 
>>> 
>>> My 2 cents.
>>> 
>>> 
>>> 
>>> Ron
>>> 
>>> KB6G
>>> 
>>> K3 S/N 1997
>>> 
>>> 
>>> 
>>> P.S.  I still give the K3 a 5+
>>> 
>>> 
>> __
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>

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[Elecraft] KX3 and KPA100/KAT100

[Larry Dodson]

I have built the KPA100/KAT100 in a separate enclosure for my K2 and would
like to know if anyone has experience of using these two kits with a KX3?
73, Larry - G0IKE
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Re: [Elecraft] new subscriber and first question

[Greg]

Suggest you use one of those amp keyer interfaces for this amp.  As an
option, also look at the universal keying adapter from HamGadgets.com.

http://www.hamgadgets.com/index.php?main_page=product_info&cPath=21&products_id=128&zenid=r3o0i7qb2ikjcqj299lq3pudb2

73
Greg
AB7R


On 9/3/13, Vic K2VCO  wrote:
> No, the K3 CANNOT switch a negative voltage for keyout! It is a solid-state
> circuit which
> is quite robust (+200v at 5A), but only for positive DC voltages.
>
> K3 schematics are here:
>
> 
>
> On 8/31/2013 3:52 AM, Doug Basberg wrote:
>> Hello;
>>
>>
>>
>> I just put together my K3/100 with ATU.  What a great transceiver!
>>
>>
>>
>> Now I need to hook it to my vintage Collins 30L-1 linear amp.  The manual
>> says the K3 can handle up to 200 volts on 'key out'.  That might mean I
>> can
>> hook up directly to the linear.  One question is whether that also means
>> minus 200v.  The Collins has -170vdc on its connector.  I was thinking
>> the
>> K3 uses relay contacts for the 'key out', but maybe not.  Second question
>> is
>> whether the K3 schematics are available?
>>
>>
>>
>> The powerful configurability of the K3 means I have a learning curve to
>> go
>> thru.  I think this reflector will be a big help.  Searching the archives
>> will probably solve a lot of questions and then there is the 'live'
>> community.  Very good.  I also subscribed to the yahoo group.
>>
>>
>>
>> 73s Doug N8VY
>>
>> __
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>> 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
>>
>
> --
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco/
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Re: [Elecraft] K3 - using Clear Speech Speaker

[Don Wilhelm]

Andy,

The K3 DSP works just fine.  In fact all the filtering, modulation, 
demodulation as well as many other radio functions are implemented in 
DSP firmware, not just the NR that has been recently discussed.


These folks have specifically been talking about the K3 Noise Reduction 
algorithms.  There are many settings for the K3 NR algorithm, and they 
are set on a per mode basis.  It may take a bit of experimenting to find 
the setting that is most effective for your use since the best one 
depends on the characteristics of the noise as well as the mode being 
used.  Some have commented that since they had the external device and 
it worked well with other radios, they also found it useful with the K3, 
and they did not have to experiment with the variety of settings offered 
by the K3.


If you are happy with the noise reduction in the KDSP2, be aware that 
all the K3 DSP firmware has been designed by the same person who 
designed the KDSP2 - Lyle Johnson KK7P.


73,
Don W3FPR

On 9/3/2013 12:04 PM, Andreas Hofmann wrote:

I was planning on getting a K3. Can someone explain to me why so many ops use 
external DSPs. Is the K3 DSP not working well enough.  I would prefer to have 
everything in a box without many peripherals, as I got these anyway for SO2R, 
antenna switching etc

So, again, how good or bad is the K3 DSP.  My main focus is CW and low bands. 
Well I am on the high bands too, but I do not see a need for DSP there.  
Current rig is a K2.



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Re: [Elecraft] K3 using Clear Speech Speaker

[Allen Brier N5XZ]

Now that's something that Elecraft needs to work on, thier internal noise 
reduction system. I find it almost useless, and I've tried it many times with 
many settings.

Allen N5XZ


-Original Message-
>From: elecraft-requ...@mailman.qth.net
>Sent: Sep 3, 2013 11:00 AM
>To: elecraft@mailman.qth.net
>
>Message: 10
>Date: Tue, 3 Sep 2013 07:48:14 -0700
>From: "Ron Midwin" 
>To: 
>Cc: ronmidwin...@gmail.com
>Subject: [Elecraft] K3 using Clear Speech Speaker
>Message-ID: <001601cea8b4$9eae5d50$dc0b17f0$@mo-rep.com>
>Content-Type: text/plain;  charset="us-ascii"
>
>I've been using the Heil version of the Clear Speech Noise Reduction Speaker
>for ~ 5 years.  It has a 5 position noise control and I usually leave it at
>1, which knocks down the noise without any negative effects on the sound.
>Heil no longer makes it, but I believe it uses similar circuitry.
>
> 
>
>My default setting is at 1 out of 5, and this cleans up the harsh noise very
>nicely without noticeable audio degradation.  
>
> 
>
>When the noise gets really bad, I have used it all the way up to 5, and
>still don't find the audio objectionable.
>
> 
>
>I also have not had a lot of success with the K3 built in NR, but this is
>probably due to my lack of understanding how to use it; but since the Clear
>Speech works so well, I take the lazy way out.
>
> 
>
>If there's any good updated info on how to use the NR effectively, I'd be
>all ears.  Maybe someone who really has it working well can do a YouTube?
>
> 
>
>My 2 cents.
>
> 
>
>Ron
>
>KB6G
>
>K3 S/N 1997
>
> 
>
>P.S.  I still give the K3 a 5+
>
> 
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Jim Brown]

On 9/2/2013 11:18 PM, Matt Moller wrote:
I don't have any experience with 43 ft verticals myself but have heard 
a lot about them and have been thinking about building one. I too 
would like to learn more.


The reason for my post asking for experience with this antenna and the 
Elecraft tuner is that I'm putting together a presentation on 43-ft 
verticals for Pacificon next month. So far, I've done a lot of modeling 
to understand how a 43-ft vertical behaves on all ham bands, both when 
ground-mounted and on the roof of a typical home (with two radials for 
each band 40-10M).


A few years ago, AD5X did some excellent work on matching a 43-ft 
vertical, with engineering that can best be described as heroic, and 
shared it in an fine Power Point that he's done for ham clubs, and that 
is on the internet. He's given me permission to include parts of it in 
my Pacificon talk. That talk is scheduled for Saturday morning.


The day before, as part of the Antenna Forum, I'm showing a rather 
extensive study with the title, "If I Could Put My Multi-Band HF 
Vertical On My Roof, Should I?" Except for the 43-ft vertical, nearly 
all commercial multi-band verticals are resonant on the bands they 
cover, and are either monopoles with radials (a classic ground plane), 
or vertical dipoles without radials.  Various designs use anything from 
traps to a combination of traps, stubs, and matching sections to 
resonate the antenna and present a  50 ohm load. .


Both Power Points will be on my website after Pacificon.

As to radials -- some of the best work I've seen is by Rudy Severns, 
N6LF, who has done both extensive modeling and significant experimental 
work to confirm the models. His work is quite thoughtful, and presented 
in a manner that is quite readable (but not light reading). As to 
assigning resistance values to a given number and length of radials -- 
I've seen several published studies, some in the ARRL Handbook and 
Antenna Book, that come up with quite conflicting numbers. I suspect 
that the primary cause of the conflicting results is the nature of the 
soil underneath the radial system.  At Pacificon last year I did a talk 
about getting on 160M from a residential lot, which is mostly about 
antennas, radial systems, and counterpoises. In it, I collected much of 
the better work I've seen about radial systems.  The Power Point is on 
my website. http://k9yc.com/publish.htm


Based on my modeling, and upon an excellent set of measurements by N0AX 
and K7LXC of a dozen commercial verticals, if I had limited space and 
could not rig horizontal dipoles for the bands I wanted to work, I would 
use one of those commercial multi-band antennas configured as a vertical 
dipole, and I would put it on my roof.


73, Jim K9YC
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[Elecraft] KX3 Production Firmware Updates?

[Jimk8mr]

Having been spoiled by the ease of installing production firmware updates,  
I wonder if there might be a new production release for the  KX3, including 
CW in SSB, coming out prior to the September ARRL VHF  contest on September 
14-15? 
 
As far as I can imagine, VHF contests are the prime use for this  feature.
 
Otherwise, time to figure out the beta installation.
 
 
 
73  -  Jim   K8MR
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Re: [Elecraft] new subscriber and first question

[Vic K2VCO]

No, the K3 CANNOT switch a negative voltage for keyout! It is a solid-state circuit which 
is quite robust (+200v at 5A), but only for positive DC voltages.


K3 schematics are here:



On 8/31/2013 3:52 AM, Doug Basberg wrote:

Hello;



I just put together my K3/100 with ATU.  What a great transceiver!



Now I need to hook it to my vintage Collins 30L-1 linear amp.  The manual
says the K3 can handle up to 200 volts on 'key out'.  That might mean I can
hook up directly to the linear.  One question is whether that also means
minus 200v.  The Collins has -170vdc on its connector.  I was thinking the
K3 uses relay contacts for the 'key out', but maybe not.  Second question is
whether the K3 schematics are available?



The powerful configurability of the K3 means I have a learning curve to go
thru.  I think this reflector will be a big help.  Searching the archives
will probably solve a lot of questions and then there is the 'live'
community.  Very good.  I also subscribed to the yahoo group.



73s Doug N8VY

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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: [Elecraft] W2 - Possible Addition to Station

[Bill]

Jim,

I have used my W2 just as you suggest.  Also others' comments reflect my
use.  I have the Vhf  module for 2 meters, and the QRO for low bands.  I
bought the kit.  The W2 also gives you some shut down features to protect
your equipment when in the key line that I use as well.

Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Bennett
Sent: Monday, September 02, 2013 5:17 PM
To: Elecraft Reflector Reflector
Subject: [Elecraft] W2 - Possible Addition to Station

Currently my station includes a K3/100, P3, Ameritron AL-811 amplifier, and
the LDG AT-600 ProII auto tuner with the M-600 analog display. I have the
10-watt 2 meter module installed in the K3. Further, I am in the process of
building the 80-watt linear amplifier for 2 meters that was presented by
W6PQL in the May 2013 issue of QST.

The above equipment does not have the ability to display SWR or power output
on 2 meters with the amplifier online. So, I've been looking at something to
fill this gap. One option was the $80 MFJ-873 V/U meter. A second, much more
expensive option is the Elecraft W2. 

I'm not a big fan of a string of LED's for measurement of anything, as it
simply does not give the resolution one would like to have. I dealt with
that when I had the Elecraft KPA500 last year. Nice to look at, but not
overly big on resolution. What I DO like about the W2 is the software that
is available from the web site - the W2 Interface Program. In addition to
bar graphs for SWR and Power Fwd/Ref, there is a numeric display with a LOT
more resolution than one normally would see with any analog "meter". Since I
nearly always have my MacBook Air turned on when I operate, needing to have
a computer for higher resolution than LED's isn't an issue for me.

Out of 15 reviews on eHam.net, only two folks were displeased with the W2 -
one got a factory-assembled unit that was DOA and another fellow didn't care
for the LED operation. Discounting those two, the reviews were very
positive. HOWEVER, I've seen several W2 units up for sale here on the
reflector, and am wondering what's up with this product?  Are there problems
that haven't been noted on eHam.net, or are folks simply unloading unneeded
equipment?

I had thought that if I went for a W2, I'd initially get it with the VHF/UHF
coupler, connecting it between my K3's 2M module and the 80-watt amp. If I
liked the way it worked, I could opt for the second coupler (QRO 1.8-54MHz),
sell the LDG M-600 meter, and put that coupler between the K3 and the LDG
auto tuner. The few pennies I'd get for the M-600 would help offset the
price of the W2. Kinda :-)

Thoughts on the W2, folks?

Jim / W6JHB
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Re: [Elecraft] new subscriber and first question

[Lyle Johnson]

Hello DOug!


I just put together my K3/100 with ATU.  What a great transceiver!

Now I need to hook it to my vintage Collins 30L-1 linear amp.  The manual
says the K3 can handle up to 200 volts on 'key out'.


Positive only, not negative.

... I was thinking the
K3 uses relay contacts for the 'key out', but maybe not.


Key out does not use a relay.


  Second question is
whether the K3 schematics are available?


PDF format download is in the manuals section of the Elecraft website.

73,

Lyle KK7P
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Re: [Elecraft] K3 - using Clear Speech Speaker

[Andreas Hofmann]

I was planning on getting a K3. Can someone explain to me why so many ops use 
external DSPs. Is the K3 DSP not working well enough.  I would prefer to have 
everything in a box without many peripherals, as I got these anyway for SO2R, 
antenna switching etc

So, again, how good or bad is the K3 DSP.  My main focus is CW and low bands. 
Well I am on the high bands too, but I do not see a need for DSP there.  
Current rig is a K2.

Thanks
Andy
KU7T


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W4GRJ
Sent: Saturday, August 31, 2013 2:16 PM
To: 
Subject: Re: [Elecraft] K3 - using Clear Speech Speaker

I have the GAP Hear It on my K3 and in the car. I have the Clear Speech on my 
boat with a Icom M802. I find they reduce substantially the background noise. 
It is particularly helpful in the car and on the boat but I also love it in my 
shack.

Jack
W4GRJ

On Aug 31, 2013, at 13:13,  wrote:

I wasn't the one asking the question.  I was only responding with my insight.

I also listen with the SGC ADSP2 speaker, but I do not find it very useful with 
actual QSO's.

How do you get around the relearn time of the DSP speaker when switching from 
transmit to receive?

Keith
KB9WMJ



- Original Message -
From: "34france" <34fra...@bellsouth.net>
To: 
Cc: 
Sent: Saturday, August 31, 2013 10:39 AM
Subject: Re: [Elecraft] K3 - using Clear Speech Speaker


Keith,
I have been using a Clear Speech AND an SGC ADSP simultaneously with a fixed
K3 at my home base for several years. Basically, I leave it on 'ALL THE
TIME'.  It reduces 'ear fatigue' from extraneous noise and makes the whole
experience inviting to have long casual 'rag chews' even between continents.
Whenever I turn off the extra signal processing to reset the K3 settings to
best performance, I inevitably turn it back on again, because the difference
is so dramatic.  Strong signals sound like local FM and weak signals are
sometimes readable with the outboard DSP, while impossible without it.

Good luck on whatever you decide to do.
Jerry (N4TSC)

-Original Message- 
From: kb9...@wi.rr.com
Sent: Friday, August 30, 2013 23:23
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 - using Clear Speech Speaker

I have used the Gap "Hear It" and SGC ADSP2 speakers, which are very
similar, and they have their advantages.  I prefer the SGC because of it's
ease of switching between 0db, -13db or -26db noise reduction with a single
switch.

I use the SGC on 6M, when I want to monitor 50.125 USB continuously.  I put
it in the -26dB mode and all the static is gone, so I just wait for voices
to show up.  Unfortunately it makes everything sound like water dripping,
which can be a little annoying.  The GAP is either on or off, and you are
constaly messing with the switches on the back of it to change the level.

Generally the DSP speakers have a slight delay, which can be a problem.
Every time you switch from transmit to receive, the DSP speaker has to
relearn its parameters, so the first 1/2 second or so is without DSP.  It is
amazing how often this is the other call you are trying to pick out, which
is obliterated by the initial switch-over noise.

I have a K3, and have not found it's DSP to be particulary useful.  Usually
by the time I need to use the NR on the K3, the signal I am listening to is
too far gone for it to really help much.

Keith
KB9WMJ


- Original Message - 
From: "Bill" 
To: 
Sent: Friday, August 30, 2013 8:05 PM
Subject: [Elecraft] K3 - using Clear Speech Speaker


Is anyone using the West Mountain Clear Speech Noise Reduction Speaker
with their K3? If so, how do you like and what does it do for you that
the K3 does not?

Thanks,

Bill W2BLC



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[Elecraft] k3 sdr-ir pan adapter

[l s]

Just acquired a rf space sdr- iq receiver and I would like to contact someone 
using the same set up. 

I managed to make it work as a stand alone receiver with Spectravue and 
sdr-radio.com v 1.5 but
I can't get either of the software programs to control the K3. I have checked 
the rs 232 cable and the pin out is correct.
This cable works fine with lp pan and powersdr-if. Any help would be 
appreciated. Please contact me off the reflector
at- lgs42...@yahoo.com

Tnx & 73

Lou KI6UM
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[Elecraft] K3 using Clear Speech Speaker

[Ron Midwin]

I've been using the Heil version of the Clear Speech Noise Reduction Speaker
for ~ 5 years.  It has a 5 position noise control and I usually leave it at
1, which knocks down the noise without any negative effects on the sound.
Heil no longer makes it, but I believe it uses similar circuitry.

 

My default setting is at 1 out of 5, and this cleans up the harsh noise very
nicely without noticeable audio degradation.  

 

When the noise gets really bad, I have used it all the way up to 5, and
still don't find the audio objectionable.

 

I also have not had a lot of success with the K3 built in NR, but this is
probably due to my lack of understanding how to use it; but since the Clear
Speech works so well, I take the lazy way out.

 

If there's any good updated info on how to use the NR effectively, I'd be
all ears.  Maybe someone who really has it working well can do a YouTube?

 

My 2 cents.

 

Ron

KB6G

K3 S/N 1997

 

P.S.  I still give the K3 a 5+

 

 

 

- Original Message -

From: "Bill" 

To: 

Sent: Friday, August 30, 2013 8:05 PM

Subject: [Elecraft] K3 - using Clear Speech Speaker

 

 

Is anyone using the West Mountain Clear Speech Noise Reduction Speaker

with their K3? If so, how do you like and what does it do for you that

the K3 does not?

 

Thanks,

 

Bill W2BLC

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[Elecraft] new subscriber and first question

[Doug Basberg]

Hello;

 

I just put together my K3/100 with ATU.  What a great transceiver!  

 

Now I need to hook it to my vintage Collins 30L-1 linear amp.  The manual
says the K3 can handle up to 200 volts on 'key out'.  That might mean I can
hook up directly to the linear.  One question is whether that also means
minus 200v.  The Collins has -170vdc on its connector.  I was thinking the
K3 uses relay contacts for the 'key out', but maybe not.  Second question is
whether the K3 schematics are available? 

 

The powerful configurability of the K3 means I have a learning curve to go
thru.  I think this reflector will be a big help.  Searching the archives
will probably solve a lot of questions and then there is the 'live'
community.  Very good.  I also subscribed to the yahoo group.

 

73s Doug N8VY

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[Elecraft] KX3 Reduced output power on 20M and above

[dixonsfamily]

I just tried to tune up my L4-B on 17M using the KX3 as the driver. I
noticed the power output was less than the nominal 200 watts that I have
been getting. I checked the output power of the KX3 and it too was down,
about 7.5 watts. I checked to make sure it was matched with the ATU
and  that checked OK. I checked to see what power level it was set to and
that was 10 watts.
 Next, I tried bypassing the amp and tuning into a dummy load. Below 20M it
will put out 10 watts full power. Above it is less than full and output
power decreases as I go to higher frequency bands, i.e. 15,12,10,and
finally 6 with the lowest power out at 3.2 watts into a dummy load.

I checked the voltage reading on the KX3 and it only dropped 0.3 volts from
13.5 to 13.2 volts.

I am sure I had full power into the L4-B last night on 20M.

Does anybody have any ideas as to what may be the problem?

Denis WA5TYJ KX3# 452
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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[John Oppenheimer]

On 09/03/2013 06:29 AM, Phil & Debbie Salas wrote:
> I also have some info in the “Presentations” section of my website at 
> www.ad5x.com.

Phil's "The 43-Foot Vertical" presentation is very well written and
contains a wealth of good information.

Phil references a 10 Ohm ground. Using the information in:
http://www.kn5l.net/GroundRadialStudy/
which summarizes three published ground radial analysis reports. Using
the combined data from the three reports:

A 160 meter radial system requires 24 80 foot radials for a 9 ohm ground.

A 40 meter, and higher frequency, radial system requires 60 56 foot
radials for an 8 Ohm ground.

Both assuming an average ground.

John KN5L
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Re: [Elecraft] CW skimmer setup question

[Larry Phipps]

Two observations...

Poling rate of 100 is fine for LP-Bridge, since the traffic is 
intercepted and responded to from memory. With a standard bridging 
program, all those requests are passed on to the rig. In the case of the 
K3, eventually the data rate will exceed the allowable amount and cause 
issues.


Timeout of 100 seems way too low. The program has to be able to try at 
least several times to respond to a request, especially since a standard 
bridging program allows packet collisions, and if there is just one 
compromised packet sent that the rig doesn't understand, there is not 
enough time for the next good one to get to the rig.


73,
Larry N8LP




On 9/2/2013 10:03 PM, elecraft-requ...@mailman.qth.net wrote:

Date: Mon, 2 Sep 2013 18:11:20 -0700 (PDT)
From: Chuck - AE4CW
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] CW skimmer setup question
Message-ID:<1378170680681-7578523.p...@n2.nabble.com>
Content-Type: text/plain; charset=us-ascii

Mike,

Please see my embedded responses below:

Just downloaded CW skimmer and am using it with the LP Pan, E MU 0202 and of
coarse the K3. I am in the process of setting things up and has some
questions. As well just wanted to share the setup options I chose just to
make sure they are ok.
Under the settings taband then to the radio tab
1. I have set hardware to softRock-IF (as per LP Pan site) is this correct?
YES
2. Sampling rate I am going to use is 96 and I did set the same on the E MU
0202
OK
3. Pitch is set to 600 as is the K3
OK
4. The Audio IF I am not sure what to set that too as I am not running any
SDR software. The only answer I could find for the setting of the was to set
the Audio IF at -6000 and take away the global offset from your SDR
software. I am not using SDR software so is it left at -6000?
YOU WILL NEED TO ADJUST THE AUDIO IF SO THAT THE CW SIGNAL LINES UP WITH
THE SKIMMER FREQUENCY INDICATOR, I.E. THE GREEN POINTER.  MINE IS -5140.
The Audio tab is set as follows.
1. Sound-card driver is set to MME
OK
2. Signal and Audio devices are set to my E MU 0202 cards
OK
3. Channels was left at Left/Right= I/Q
I HAD TO CHANGE TO Q/I.
4. Shift Right channel data was left at 0 samples
OK
The Rig tab is set as follows..
I HAVE NOT USED VSP MANAGER...RATHER LP-BRIDGE, BUT SEE BELOW FOR MY
SETTINGS IN THE SKIMMER CAT OMNI-RIG PANEL
1. Rig K3
2. Com port to be set when I use VSP manager to set up a virtual port pair.
3. Baud 38400
OK
4. Data 8 bits
OK
5. Parity none
OK
6. Stop 2
THE K3 USES 1 STOP BIT
7. RTS set to Highnot sure about this?
LOW
8. DTR set to high as well and not sure about this?
LOW
9. Poll set to default 500
100
10. Time out set to default 4000.
100
Not to concerned about other tabs at this moment in time. Just wanted to see
if I am on the right track with those who have this program up and running
with their K3
Thanks for your time
Mike
VE3WDM


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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Phil & Debbie Salas]

Dave WX7G wrote an article that may be of interest:

www.eham.net/articles/21272

I also have some info in the “Presentations” section of my website at 
www.ad5x.com.

As Jim says, if you use good quality coax over reasonable distances (I use 1/2” 
heliax over a 60-ft run), SWR-related losses are reasonable on 60-10 meters.  
Above 20 meters the radiation angle increases.  However, since the antenna is 
electrically longer the radiation resistance increases which makes ground 
losses less significant.  Lots of trade-offs to consider.  Matching at the 
antenna base is important on 160- and 80-meters as the SWR is VERY high on 
those bands.  Also, most autotuners cannot match the 43-foot vertical at the 
base on 160-meters so additional external inductance is needed on this band 
(see the Autotuner Extender in the “Articles” section of my website.

I prefer the convenience of the autotuner in the shack, especially if you use 
an amplifier.  A remote tuner can’t easily take your amp off-line during tuning 
or if a high SWR suddenly occurs.  So I use a fixed base match for 160/80 
meters, and the standard 4:1 unun on 60-10 meters (all switchable from the 
shack).  My KAT500 in the shack handles all the bandwidth extensions I need on 
all bands.

Phil – AD5X
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Re: [Elecraft] K3 & Ham Radio Deluxe

[PKA]

I am using HRD 5.24 and remote access (using Teamviewer).
It works well enough for my use (100% CW)

For me, the problem with a few  buttons is just an annoyance.
But there are other shortcomings in old HRD versions. I don't know if they 
apply to the most recent versions.

1. Keying a Winkeyer is possible, but the buffer handling is very slow in 
starting up sending CW. I used it for several  years, but had a real 
"eyeopener" when I changed to using the WK Demo program. It is so much faster 
and works absolutely great.
Actually using HRD with its poor buffer handling for keying a Winkeyer may lead 
to the misunderstanding that the internet latency is an obstacle against using 
CW-over-IP. It generally is not.
2. RIT does not work (I just use split VFO)
3. There is no good reading of the K3 SWR. However the TX level in upper left 
corner does show the SWR well enough to let you know if you have to activate 
the ATU (also when operating on a long latency internet connection)
4. Some  buttons do not change colour when selected. Of the few I use, the 
following do not change colour: Split, Test, NR, ALT. But that's not a real 
problem.
5. The VFO-B frequency reading acts strange. It seems only to read the 
frequency when I change VFO-A value. So if I push A>B and then change VFO-A it 
will change to the old VFO-A value.  As I recall it, I did not have this 
problem  on earlier versions.

73 de OZ4UN
Paul

-Oprindelig meddelelse-
Fra: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] 
På vegne af Doug Basberg
Sendt: 2. september 2013 20:25
Til: Elecraft@mailman.qth.net
Emne: [Elecraft] K3 & Ham Radio Deluxe

Which buttons do not function correctly?  If I knew that, I would try it in my 
HRD 6 version and report back.

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Re: [Elecraft] 43 Ft Vertical and Elecraft Tuners

[Richard Neese]

most people I have heard running a 23 or 32 ot 43 foot vertical all use 
a 4:1 and a 1:1 inline...


I hvae also been reading articals where a 5.1 rf coil is used.

--
R.Neese
KB3VGW

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