Re: [Elecraft] Legal Limit With FT8

[Hank Garretson]

On Thu, Nov 11, 2021 at 5:18 AM Richard  wrote:

> There's a major jerk who lives within about 20 miles of me who runs BIG
> power with FT8. When he's on the air, he blots out my K3S so his is the
> only signal on the waterfall, the only signal the decoder sees. When his
> BIG POWER is on the air, I can't be. And he's made it clear that he doesn't
> care what he does to anyone else's enjoyment. Power for power's sake is
> contagious.
>

I suggest that the problem is not his power. Instead he is almost for sure
overdriving his audio input.

Since you are off on the wrong foot with him, maybe you can get some other
local to approach him in a helpful way.

Ham Exuberantly,

Hank, W6SX
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[Elecraft] Mic headset for K3

[Hank Garretson]

I like theYamaha CM500. Unfortunately I'm now on my fourth set. They are
too fragile for me. Either headphones or mic fails.

I plug CM500 mic into K3 rear MIC jack with BIAS selected and it works. I
plug CM500 into my computer sound-card MIC jack and it works.

I'm looking for CM500 alternative. I've seen various Koss models.

But I'm confused about electret versus condenser and which is which and
which does what.

Specs for the Koss models are ambiguous and in various places contradict
themselves.

My question: What Koss model or some other brand can I plug and play into
both my K3 mic jack (with Bias on) and into my computer mic jack?

I'm a mic duffus. Help please.

73,

Hank, W6SX
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Re: [Elecraft] Big Knob Fail

[Hank Garretson]

Kurt did talk with Elecraft support. He has replacement encoder on order.

Thank you all.

73,

Hank, W6SX
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[Elecraft] Big Knob Fail

[Hank Garretson]

My buddy Kurt, W6PH, who is not on the list, has a K3S. Recently the VFO
knob has been intermittent and it is now total fail. Does not change
frequency. When he goes to CONFIG or MENU, VFO knob does not change
anything. All other knobs and buttons work including VFO B.

Kurt called Elecraft support and was directed to voice mail.

Any ideas?

73,

Hank, W6SX
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Re: [Elecraft] Fixed--P3 Utility Help Please

[Hank Garretson]

Ooops! Another goof.

Dick, K6KR fixed me up.

73,

Hank, W6SX

On Mon, Aug 10, 2020 at 12:55 PM Hank Garretson  wrote:

>
>
> On Sun, Aug 9, 2020 at 3:55 PM Hank Garretson  wrote:
>
>
>> When I click on Configuration Tab, both Save and Restore options are
>> grayed out.
>>
>
> Thanks to help from N6KR, all is good.
>
> I didn't have latest P3 firmware. My goof.
>
> Thanks to everyone else for the suggestions.
>
> 73,
>
> Hank, W6SX
>
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[Elecraft] Fixed--P3 Utility Help Please

[Hank Garretson]

On Sun, Aug 9, 2020 at 3:55 PM Hank Garretson  wrote:


> When I click on Configuration Tab, both Save and Restore options are
> grayed out.
>

Thanks to help from N6KR, all is good.

I didn't have latest P3 firmware. My goof.

Thanks to everyone else for the suggestions.

73,

Hank, W6SX
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Re: [Elecraft] P3 Utility Help Please

[Hank Garretson]

Thanks Bill. Always a good suggestion, but didn't help.

Port, Firmware, Command Tester, and Capture Image tabs all work as
expected.

Configuration tab has Save P3 Configuration and Restore P3 Configuration
grayed out.

73,

Hank, W6SX

On Sun, Aug 9, 2020 at 7:16 PM Nr4c  wrote:

> Might try re-booting your computer.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
> > On Aug 9, 2020, at 6:57 PM, Hank Garretson  wrote:
> >
> > Windows 10.
> >
> > P3 Utility Ref 1.16.3.15
> >
> > Connects to my P3 just fine.
> >
> > When I click on Configuration Tab, both Save and Restore options are
> grayed
> > out.
> >
> > Help please. What am I doing wrong.
> >
> > Ham, Cope Exuberantly,
> >
> > Hank, W6SX
> > __
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Re: [Elecraft] P3 Utility Help Please

[Hank Garretson]

Have done that. It tells me I am connected.

No other programs are using the port.

Configuration: K3 >> P3 >> Port 10.

On Sun, Aug 9, 2020 at 4:10 PM Dick Dievendorff  wrote:

> Click "Test communications" on the Port tab to verify the P3 connection.
> The config buttons are disabled if the P3 Utility doesn't think it's
> connected to a P3.
>
> 73 de Dick, K6KR
>
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On
> Behalf Of Hank Garretson
> Sent: Sunday, August 9, 2020 15:55
> To: Elecraft Reflector 
> Subject: [Elecraft] P3 Utility Help Please
>
> Windows 10.
>
> P3 Utility Ref 1.16.3.15
>
> Connects to my P3 just fine.
>
> When I click on Configuration Tab, both Save and Restore options are grayed
> out.
>
> Help please. What am I doing wrong.
>
> Ham, Cope Exuberantly,
>
> Hank, W6SX
> __
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[Elecraft] P3 Utility Help Please

[Hank Garretson]

Windows 10.

P3 Utility Ref 1.16.3.15

Connects to my P3 just fine.

When I click on Configuration Tab, both Save and Restore options are grayed
out.

Help please. What am I doing wrong.

Ham, Cope Exuberantly,

Hank, W6SX
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Re: [Elecraft] Field Day and clean radios

[Hank Garretson]

It is endless. Sanitize the radio, the keyboard, the pencil, the paper, the
desk, the chair, the mouse, the ...

Better bet. Keep your blooming hands away from your face! Don't ever touch
your face!

Contest, Cope Exuberantly,

Hank, W6SX
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Re: [Elecraft] KPA1500 power per frequency bin

[Hank Garretson]

Here's what happens to me.

I train KPA1500 ATU at center of each frequency bin across a ham band. I
transmit in one bin and KPA1500 output is say 1350 watts.. I transmit in
another bin and KPA1500 output is above 1500 watts. I have to keep
adjusting K3 power as I move around band. A bother and nuisance.

Clearly KPA 1500 knows K3 frequency, either via Aux cable or sense. Either
way KPA1500 knows what ATU bin to use.

If KPA1500 is Operate, then it tells K3 to use last power, say 30 watts, I
selected for KPA1500 Operate for whatever band is in use.

If KPA1500 is Standby, then it tells K3 to use last power, say 100 watts, I
selected for KPA1500 Standby for whatever band is in use.

KPA1500 remembers and tells K3 what power to use per band. Since KPA1500
"knows" if I'm in OPR or STBY and what bin I'm in, it would sure be nice if
it could remember and command K3 power appropriately.

Contest, Cope Exuberantly,

Hank, W6SX


On Tue, Jun 2, 2020 at 6:13 PM Carl Clawson  wrote:

> Regardless of how it would have to be implemented, Hank hit the nail
> squarely on  the head here. As I go up and down the band (especially low
> bands where the antennas are skinny and every increment of power is to be
> treasured) I have to either dial back my power when the KPA ATU is working
> harder, or accept lowered power on those frequencies where the ATU is
> loafing.
>
> It may be too late for the K3, but Elecraft software guys, please figure
> out how to make the K4 and KPA1500 talk to each other and make this happen.
>
> Your customers will appreciate it!
>
> 73, Carl WS7L
>
> On Tue, Jun 2, 2020 at 3:54 PM Jack Brindle via Elecraft <
> elecraft@mailman.qth.net> wrote:
>
> > It’s not a KPA1500 function, but rather a K3 function. And the K3 has no
> > concept of KPA ATU bins.
> >
> > 73!
> > Jack, W6FB
> >
> >
> > > On Jun 2, 2020, at 3:39 PM, Hank Garretson  wrote:
> > >
> > > It sure would be nice if KPA1500 remembered K3 power for each frequency
> > bin
> > > instead of for each band.
> > >
> > > Is there a menu item to make this happen? Or is it a feature request.
> > >
> > > Contest, Cope Exuberantly,
> > >
> > > Hank, W6SX
> > > __
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[Elecraft] KPA1500 power per frequency bin

[Hank Garretson]

It sure would be nice if KPA1500 remembered K3 power for each frequency bin
instead of for each band.

Is there a menu item to make this happen? Or is it a feature request.

Contest, Cope Exuberantly,

Hank, W6SX
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Re: [Elecraft] K3 Accessory Y Cable?

[Hank Garretson]

I'm on the road right now so may not have this exactly right, but check

https://www.cablewholesale.com/

Much cheaper.

73,

Hank, W6SX

On Sun, Sep 22, 2019, 7:22 PM Gary Johnson  wrote:

> Winford Engineering  https://www.winford.com/products/cdy15hd.php <
> https://www.winford.com/products/cdy15hd.php>
>
> Array Solutions https://www.arraysolutions.com/k3-y <
> https://www.arraysolutions.com/k3-y>
>
> -Gary NA6O
>
>
> > I believe that Elecraft used to sell a Y cable for connecting from the
> > accessory socket on the K3 to both the KPA1500 and a RemoteRig radio side
> > box.
> >
> > I no longer see this on the Elecraft site.
> >
> > Anybody have a source for these?
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Re: [Elecraft] K3+P3+ACOM2000A+PC

[Hank Garretson]

On Thu, Mar 28, 2019 at 7:24 PM Harris Leck via Elecraft <
elecraft@mailman.qth.net> wrote:

I would like to have K3 CAT controlling my ACOM2000A but I also need to
> connect my PC. Is this possible?
>

It is easy if you have the new RCU. Hook things up per Figure 7-2 in 2000A
manual.

It is important to note that the ACOM will not follow the K3 unless the K3
is handshaking with the computer. In my station, no problem because I
always have N1MM+ running.

73,

Hank, W6SX
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Re: [Elecraft] KPA1500 PA Current

[Hank Garretson]

Send your email to Elecraft support. Can't hurt.


On Fri, Mar 15, 2019 at 12:26 PM Gary J Ferdinand  wrote:

> I’m in the process of checking out my amp.  I have two dipoles (40 and
> 80).  At resonance both show a 1.2:1 SWR with ATU totally bypassed.  With
> ATU on, it remains bypassed on 80, but shows only the ATU ON LED on 40.  In
> both cases the resultant SWR is 1.2:1.   SWR measurements are from the
> KPA1500 display.
>
> When I use the amp with my K3 and drive it up to 1500W, I am occasionally
> getting an excessive PA current fault at 63A.  From a cold start it’s 60A,
> but as it warms up in contest usage I find the power drops off, so I have
> to adjust the K3 to bring it back up to 1500W.  At that point the PA
> current goes over 60A.
>
> Interestingly, into a dummy load the 1500W point shows a PA current of
> only 55A.  So the 1.2:1 SWR, be it via a bypassed ATU or using the ATU, is
> sufficient to raise the PA current eventually to excessive levels.
>
> Suggestions?   I don’t want this to be flipping out during a contest.  I
> also don’t want to reduce power into what should be a totally acceptable
> load.
>
> 73
>
> Gary W2CS
>
>
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[Elecraft] Second Try--Re: K3: CM500 vs. SB40

[Hank Garretson]

On Wed, Mar 21, 2018 at 9:31 AM, Jim Brown 
wrote:

> Another hint for those with moderate hearing loss.  Turn off your aids and
> set RXEQ for maximum boost on the top bands, maximum cut on the lower
> bands.  Several years ago, I recommended this to a friend with a lot of
> loss, and he uses it successfully to work CW.
>

Here is what I do with good success.

For CW, I maximize RX EQ for my sidetone frequency. In my case, Sidetone is
800 Hz. RX EQ is 0 db for all bands except Band 5 (800 Hz) which I set at
+16 dB.

I just had my hearing aids adjusted. I asked for one program to bandpass at
800 Hz. Still evaluating if that is going to help.


> On 3/21/2018 8:15 AM, Don Wilhelm wrote:
>
>> I have hearing aids, and find I cannot use the CM500 without removing the
>> aids - they cause howls.
>> My hearing aids are over the ear type as yours are.
>>
>
I have no howl or feedback issues with over-the-ear hearing aids and cans.
Different people have different results.

73,

Hank, W6SX
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Re: [Elecraft] K3: CM500 vs. SB40

[Hank Garretson]

On Wed, Mar 21, 2018 at 9:31 AM, Jim Brown 
wrote:

> Another hint for those with moderate hearing loss.  Turn off your aids and
> set RXEQ for maximum boost on the top bands, maximum cut on the lower
> bands.  Several years ago, I recommended this to a friend with a lot of
> loss, and he uses it successfully to work CW.
>
> 73, Jim K9YC
>
> On 3/21/2018 8:15 AM, Don Wilhelm wrote:
>
>> I have hearing aids, and find I cannot use the CM500 without removing the
>> aids - they cause howls.
>> My hearing aids are over the ear type as yours are.
>> Fortunately, my low frequency hearing is about normal, so I can work
>> without the hearing aids - at least for ham radio purposes.
>>
>
>
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Re: [Elecraft] paddles directly to K3 - not working

[Hank Garretson]

> ... and the only way to affect the speed of the K3 internal keyer
> is the speed control on the front panel of the K3.
>

I think keyer speed can be set using CAT command.

KS (Keyer Speed; GET/SET)
> SET/RSP format: KSnnn; where nnn is 008-050 (8-50 WPM).
>

CW Exuberantly,

Hank, W6SX
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Re: [Elecraft] Random wire lengths for antennas

[Hank Garretson]

On Sun, Jan 29, 2017 at 1:01 PM, Lynn W. Taylor, WB6UUT <
k...@coldrockshotbrooms.com> wrote:


> If the wire is near 1/2 wavelength on a band, the impedance at the end
> will be very high, and the tuner may not be able to match it.
>

Why is that? A quick heuristic to help understand.

The current at the far end of a random wire is zero. One-quarter wavelength
from the far end, the current is maximum. Another one-quarter wavelength
along (total of one-half wavelength from far end) the current is zero.

I = E / Z>>   Z = E / I

So, one-half wavelength from the far end, Z is going to be whatever E is
divided by a very small number >>  VERY HIGH and hard to match.

This also explains why the impedance at the center of a half-wave dipole is
reasonable. Current at either end of the dipole is zero and high at the
center. Voltage at either end of the dipole is high and low at the center.

Z = E / I

At half-wave dipole center, low voltage at center divided by high current
at center gives a low impedance, easy to match.

It's all basic physics. There is no magic magic number or formula. Despite
what some antenna manufactures will tell you.

Ham Exuberantly,

Hank, W6SX
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Re: [Elecraft] Power Supplies

[Hank Garretson]

Counterpoises are good.

Also very helpful is to adjust total length of flattop and feedline to be
an odd multiple of Lambda/4 for the bands of interest. This keeps max RF
voltage peaks out of the shack. Not always convenient to do if you want
multiple bands.

73,

Hank, W6SX


On Sat, Jul 16, 2016 at 9:04 AM, Jim Brown 
wrote:

>
> Forget your field strength meter and 1) concentrate on providing a decent
> counterpoise for your antenna so that return current flows on that
> counterpoise rather than ground wiring inside your shack; and 2) on killing
> Pin One Problems in the equipment in your shack. You have high field
> strength in your shack because the antenna ends at your shack, and because
> it is working!
>
> Study k9yc.com/RFI-Ham.pdf
>
> 73, Jim K9YC
>
> On Sat,7/16/2016 8:26 AM, Drew AF2Z wrote:
>
>> I have an endfed wire antenna for the low bands so there is RF in the
>> shack which needs to be managed. In such a case a field strength meter is
>> handy in figuring out how to arrange equipment, cables, keyboards, etc and
>> placing ferrite toroids and snap-ons for best results. I use an old Simpson
>> 37
>>
>
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Re: [Elecraft] Feedline Loss With Mismatched Loads

[Hank Garretson]

On Wed, Apr 27, 2016 at 3:26 PM, Jim Brown 
wrote:

Could you rebuild that rotary dipole as a fan?  A 40/20 fan would also give
> you 15. It's worth spending some time with EZNEC. Did you see the great
> work that W6SX did to multi-band his wires?  He showed it at an NCCC
> meeting. Dunno if it's online, but it's worth chasing down.
>

http://tinyurl.com/grbzufx

73,

Hank, W6SX
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[Elecraft] K3 RTTY Decode

[Hank Garretson]

Good friend K1GQ wondered out loud about real data comparing K3 RTTY decode
to software decoders. Here is fifteen minutes of real data.

Attachment 1. K3 decode captured by K3 Utility program. K3 width 400 Hz.
Didn't fiddle with K3 decode parameters--used factory defaults.

Attachment 2. MMTTY decode. AA6YQ FIR512 profile for first five minutes,
them Fluttered Signals (FIR) profile for last ten minutes.

If attachments didn't make it to list, email me and I will send them to
you.

Data captured during first fifteen minutes of 18 March zulu NCCC RTTY
Sprint.

Used MMTTY cross bars to tune.

The sometimes frantic NS is a good test with lots of frequency changes,
great signal-strength variability, and QRM.

My take is that MMTTY is superior to K3 decode, but I was pleasantly
surprised by how well K3 decode performed.

My work is done. I'll leave it to others to draw more rigorous conclusions.

Regardless of relatively decode performance of K3 versus MMTTY, I believe
the most important plus of MMTTY and similar programs is call and exchange
parsing, highlighting, and clicking into log window.

When contesting, I have one MMTTY window and two 2Tone windows open and I
constantly scan all three. My experience is that sometimes MMTTY is better,
sometimes 2Tone Flutter is better, and sometimes 2Tone Selective is better.
I often end up integrating bits and pieces from all three windows to
complete a contact. That's part of what makes RTTY contesting fun. Your
print may vary.

Diddle Exuberantly,

Hank, W6SX

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Re: [Elecraft] Recording CQ WW CW and SS

[Hank Garretson]

QSO Recorder does not meet the letter of CQWW rules:

*C. Audio Recordings:* Any single operator entrant (see V.A.1) competing
> for a top three finish at the (a) World, (b) Continent, or (c) USA levels,
> must record the transmitted and received audio as heard by the operator for
> the duration of the contest operation.
>

Contest Exuberantly,

Hank, W6SX


On Wed, Oct 21, 2015 at 2:59 AM, Mike va3mw  wrote:

> Use N1MM+ which is free to do your logging and QSORDER which is also
> free.  Both these run on your PC.
>
> Many have done it for years like this. Each qso is logged as a separate
> audio file and it works wonderfully.
>
> I've done it from my remote base logging the audio locally for the past 4
> or 5 years.
>
> Mike va3mw
>
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Re: [Elecraft] Recording CQ WW CW and SS

[Hank Garretson]

N4ZR reminds me that QSO Recorder has been recently updated to allow
continuous recording which would satisfy CQWW rules.

The each-QSO mode suggested below would not satisfy CQWW rules.

Contest Exuberantly,

Hank, W6SX


On Wed, Oct 21, 2015 at 7:34 AM, Hank Garretson <w...@arrl.net> wrote:

> QSO Recorder does not meet the letter of CQWW rules:
>
> *C. Audio Recordings:* Any single operator entrant (see V.A.1) competing
>> for a top three finish at the (a) World, (b) Continent, or (c) USA levels,
>> must record the transmitted and received audio as heard by the operator for
>> the duration of the contest operation.
>>
>
> On Wed, Oct 21, 2015 at 2:59 AM, Mike va3mw <va...@portcredit.net> wrote:
>
>> Use N1MM+ which is free to do your logging and QSORDER which is also
>> free.  Both these run on your PC.
>>
>> Many have done it for years like this. Each qso is logged as a separate
>> audio file and it works wonderfully.
>>
>> I've done it from my remote base logging the audio locally for the past 4
>> or 5 years.
>>
>> Mike va3mw
>>
>
>
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Re: [Elecraft] QST Review of KSYN3A synth has erroneous TX phase noise plot

[Hank Garretson]

> One line for the FCC requirement, then a broad line showing the curves of
> the three best rigs tested so far.
>

Please give a reference for "FCC requirement." Best I have been able to
find are wishy-washy words addressing something like best or current
engineering standards.

73,

Hank, W6SX
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Re: [Elecraft] P3TXMON Question?

[Hank Garretson]

On Fri, Aug 21, 2015 at 11:19 PM, Edward R Cole kl...@acsalaska.net wrote:

When I need to know accurate power readings my best instrument is either
 scope and good 50-ohm termination, or using my HP432A mw power meter.  Its
 about 1/2 dB accurate.


Isn't 1/2 dB accurate the same as 12 percent accuracy?

73,

Hank, W6SX
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Re: [Elecraft] Rig Insurance

[Hank Garretson]

My insurance agent said almost the same thing...


Of course an insurance agent would say that. It is to his advantage to have
clients who don't make claims.

73,

Hank, W6SX
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Re: [Elecraft] Need local help

[Hank Garretson]

On Tue, Jun 9, 2015 at 6:52 AM, Bob N3MNT b...@hogbytes.com wrote:

If you want to use a program on the computer you need to add an interface.
 I
 use and recommend this a signalink   http://www.tigertronics.com/  The
 have
 an interface cable for the KX3 that makes the operation seamless.


You do not need an interface. All you need is audio cables between your
computer soundcard and rig.

http://audiosystemsgroup.com/HamInterfacing.pdf

Interfaces are sometimes plug and play and an easy solution. Other times
they are an exasperating pain to get working.

In any case I suggest trying the no-cost approach first. Audio cables are
all I've ever used.  Good for over 50,000 digital contacts since 2006.

73,

Hank, W6SX
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[Elecraft] K3 Switched 12 Volts

[Hank Garretson]

For the last month or so, the switched 12VDC OUT phono jack on the back of
my K3 isn't switched. My P3 is plugged into this jack. As soon as I turn
the 12-volt power supply on, the P3 powers up even though the K3 is not on.
When I hit POWER on the K3 to power down the K3, the P3 stays on. To power
down the P3, I have to turn the 12-volt power supply off.

It used to work as advertized--switched. Ideas?

73,

Hank, W6SX
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Re: [Elecraft] K3 Receive De-sense Problem

[Hank Garretson]

Thanks to everyone who responded, both to the group and privately.

Still unresolved is whether it is the K3 or my cabling.

Before tackling the daunting task or checking the cables or tearing into
the K3, I'm going to borrow another transceiver and see if the problem is
still there.

If no, then it's the K3. If not, then it's cables.

Stay tuned.

Thanks again for all the suggestions. Very much appreciated.

73,

Hank, W6SX
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[Elecraft] K3 Receive De-sense Problem

[Hank Garretson]

For the past few months, I have had intermittent receive de-sense with my
K3/100-F, Serial 1523. Firmware 5.14, 2.13, 1.19 installed this week, but
de-sense was there with previous firmware.

Intermittently receive sensitivity will drop about ten dB. Usually happens
after transmitting, but sometimes happens spontaneously with no
transmitting. A dit usually restores sensitivity. If I don't dit,
sensitivity randomly restores itself.

CW, SSB, RTTY. All contest bands. (Don't do WARC.)

I have one-by-one eliminated my BCD antenna-switches, my ACOM amplifier,
and my antenna/dummy load switch. With these items in or out of line, I
still get intermittent de-sense.

Which leads me to believe the problem is with the K3 itself. (It could be
one of my coax patch cables, but I suspect not.)

KXV3 installed, but use ANT1.

SUB installed. Intermittent de-sense with and without SUB engaged.

Suggestions?

73,

Hank, W6SX
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Re: [Elecraft] OT: K3 and Johnson Matchbox

[Hank Garretson]

Sorry. My five Matchboxes are KW units.

73,

Hank, W6SX


On Sunday, February 1, 2015, Fred Jensen k6...@foothill.net wrote:

 Talk to Hank, W6SX.  He uses several Matchboxes, one for each band with
 an automatic switching arrangement.  He's good on QRZ.

 73,

 Fred K6DGW
 - Northern California Contest Club
 - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
 - www.cqp.org

 On 2/1/2015 2:18 PM, Richard Fjeld wrote:

 I use open wire feed line with a Johnson Matchbox.  I'd like to
 verify that the taps on the coils are original. (I saw solder on
 one.) When these are purchased used, one never knows if it is in
 original state.

 I've been trying to find a source where I may find detailed pictures
 of the coil to use for comparison.  So far, I haven't found what I
 need.  Any help?  (This is a 275 watt model)

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Re: [Elecraft] P3 feature request

[Hank Garretson]

Even better would be if someone could develop software to display logger
bandmap on the P3SVGA monitor.

73,

Hank, W6SX


On Wed, Dec 10, 2014 at 9:28 PM, Vic Rosenthal k2vco@gmail.com wrote:

Ever miss a letter in a call or aren't sure if a DX station came back to
 you? The information is still there, sitting in the memory of the P3,
 scrolling down the waterfall. On a large monitor it is there for a long
 time. What if you could click on a spot on the screen with a mouse and play
 it back? Instant replay!

 Vic K2VCO/4X6GP

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Re: [Elecraft] K3 audio artifacts

[Hank Garretson]

I agree with Vic. QSK is sometimes painful.

CW Exuberantly,

Hank, W6SX


On Tue, Nov 18, 2014 at 4:27 AM, Vic Rosenthal 4X6GP/K2VCO 
k2vco@gmail.com wrote:

 I know I might be beating a dead horse, but my recent experience in big,
 noisy pileups has made this problem stand out.

 The t/r transitions in QSK and semi-QSK CW when there are nearby strong
 signals make a horrible racket -- enough to make me turn down the volume
 when sending, which negates the utility of QSK, of course.

 Although the QSK is smooth and quiet on a quiet band, this is not the case
 when there are strong signals around. Here in 4X the EU signals can be
 super-strong, and in recent FT4TA pileups, the banging and crashing around
 my sidetone made operating sheer torture.

 Yes, I am using QRQ mode (I listen to the DX on the subrx and the pileup
 on the main so as to make this possible) and New QSK. It doesn't matter.

 The problem is as bad or worse in 'simplex' operation when numerous
 stations are calling a DX station on the same frequency.

 I understand that this is caused by the limitations of the synthesizers.
 But I have discussed with Wayne and Lyle the possibility of changing the RX
 muting function, which would slow down the QSK but at least make it quiet.
 Fast QSK is worthless if I have to turn down the audio to protect my
 eardrums!

 This would do a huge amount to increase the operating pleasure of serious
 CW operators. The feature could be optional so those who like to ragchew at
 high speed in QRM-free spots could turn it off.
 --
 73,
 Vic, 4X6GP/K2VCO
 Rehovot, Israel
 http://www.qsl.net/k2vco/
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Re: [Elecraft] Incidental AM using FSK-D

[Hank Garretson]

Easy. Put a decent scope on the RF envelope.

73,

Hank, W6SX



On Monday, November 10, 2014, Joe Subich, W4TV li...@subich.com wrote:


  My K3 increases power by 10% when in Space as opposed to Mark.

 Two things here ...  10% is abut 0.4 dB.  How did you measure the power
 difference and did you do so with an instrument with enough resolution
 to accurately measure that difference at the power level you were using?
 For example a Bird Wattmeter can't possibly measure with that level of
 accuracy nor is one likely to be able to read an analog meter that
 closely.

 I have measured my K3 on RTTY with a wattmeter traceable to NIST and
 specified for 3% accuracy and have done so at four specific power
 levels (25, 55, 80 and 105 Watts) to eliminate any ALC non-linearity
 or PA compression from consideration.  The specific Mark/Space power
 levels were measured by placing the rig into transmit in FSK_D mode
 with the FSK input closed (Mark), measuring the power output for a
 given power setting, then opening the FSK input and noting the PO
 (and change).

 In all cases, the difference between MARK and SPACE was less than 2%
 (less than the meter's specified accuracy) and at two power levels (55
 and 80 W) the measured difference was less than 0.2W (0.2 dB at 55W).

 These measurements were made with standard High tones (2125/2295 Hz)
 and the K3 was equipped with the optional 2.8 KHz, 8 pole IF filter.

 73,

... Joe, W4TV


 On 2014-11-10 8:42 PM, Bill Lewis wrote:

 I am looking for information on how to eliminate incidental AM when using
 FSK-D.

 My K3 increases power by 10% when in Space as opposed to Mark.

 Thanks much, Bill, W8NN




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Re: [Elecraft] Incidental AM using FSK-D

[Hank Garretson]

Keep in mind that this is one case where instrument precisipn is more
important than instrument accuracy.

73,

Hank, W6SX



On Monday, November 10, 2014, Don Wilhelm w3...@embarqmail.com wrote:

 Not so easy even with a decent scope.
 50 watts will produce 141.42 volts p-p, and 55 watts will produce 148.32
 vp-p.
 That is a difference on 7.1 vp-p for a 10% difference in power.
 That small difference is difficult to discern on a scope at that vertical
 amplitude.
 Yes, a small difference in amplitude can be discerned, but to quantify it
 to less than a 5% difference is difficult to measure with a 'scope.

 73,
 Don W3FPR

 On 11/10/2014 9:23 PM, Hank Garretson wrote:

 Easy. Put a decent scope on the RF envelope.

 73,

 Hank, W6SX



 On Monday, November 10, 2014, Joe Subich, W4TV li...@subich.com wrote:

  My K3 increases power by 10% when in Space as opposed to Mark.

 Two things here ...  10% is abut 0.4 dB.  How did you measure the power
 difference and did you do so with an instrument with enough resolution
 to accurately measure that difference at the power level you were using?
 For example a Bird Wattmeter can't possibly measure with that level of
 accuracy nor is one likely to be able to read an analog meter that
 closely.

 I have measured my K3 on RTTY with a wattmeter traceable to NIST and
 specified for 3% accuracy and have done so at four specific power
 levels (25, 55, 80 and 105 Watts) to eliminate any ALC non-linearity
 or PA compression from consideration.  The specific Mark/Space power
 levels were measured by placing the rig into transmit in FSK_D mode
 with the FSK input closed (Mark), measuring the power output for a
 given power setting, then opening the FSK input and noting the PO
 (and change).

 In all cases, the difference between MARK and SPACE was less than 2%
 (less than the meter's specified accuracy) and at two power levels (55
 and 80 W) the measured difference was less than 0.2W (0.2 dB at 55W).

 These measurements were made with standard High tones (2125/2295 Hz)
 and the K3 was equipped with the optional 2.8 KHz, 8 pole IF filter.



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Re: [Elecraft] Using bug keyer with KX3 paddles

[Hank Garretson]

On Fri, Aug 29, 2014 at 9:46 AM, Fred Jensen k6...@foothill.net wrote:

True ... but, spacing has always been the issue.  It was solved way back in
 1949 -- check out October 1949 QST -- but for some reason, it never caught
 on.


Thanks Fred. Took me a few minutes to find it. My first search turned up
Silent Keys.

73,

Hank, W6SX
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Re: [Elecraft] 20M sub receive

[Hank Garretson]

Also make sure your (contest-logging?) software is not causing the problem.
I had a spell, when for reasons I don't completely understand, SUB wasn't
working on forty meters. By chance I disconnected N1MM, which was in SO2V
configuration, and the problem went away. The problem had something to do
with conflict between N1MM and a homebrew external switching scheme.

73,

Hank, W6SX


On Mon, Jul 7, 2014 at 6:59 AM, Mike K2MK k...@comcast.net wrote:

 Hi Jay,

 The most common explanation for this problem is incorrect antenna
 assignment
 on that band. The K3 remembers your selection per band so it is possible
 that one band might have the wrong assignment.

 In a like manner other parameters are remembered per band such as filters,
 NR, NB, ATT or PRE, etc..

 73,
 Mike K2MK



 JAY-3 wrote
  On 20M the Sub receive dose not work.On all other bands when I turn on
 the
  Sub I can hear signals on VFO B. When I try on 20M it is dead.I have
  turned
  the VFO A down so I hear nothing there and the B full volume and there is
  nothing.
  Where would I look  to correct this problem.
 
  --
  73
  KI4TXP  JAY

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Re: [Elecraft] A Good Antenna Length?

[Hank Garretson]

102 feet.

There is nothing magic about 102 feet if you feed it with open-wire line.
Having a decent match at the feed point doesn't mean squat because
feed-point impedance is transformed by the feed line and what you get at
the transmitter end won't be the same as at the feed point unless feed-line
length is an even multiple of a half wavelength.

What IS important is the total length of one half of your dipole plus your
open-wire feed.

For whatever frequency/frequencies you want an easy match on, make half of
your dipole plus feed length as close to an odd multiple of a quarter
wavelength as you can.

This can be problematic if you want to operate on multiple bands. Don't
despair--it's not that hard. You can adjust flat-top length or feed-line
length or both to get something you can match on all your bands of
interest.

Bottom line. Your ability to match is affected by both dipole length and
(open-wire) feed-line length.

73,

Hank, W6SX
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Re: [Elecraft] extended double Zepp

[Hank Garretson]

On Wed, Jun 25, 2014 at 12:14 PM, Fred Townsend fptowns...@earthlink.net
wrote:

... 45' is too low for 80M unless you are running NVIS in which case you
 are too high at 45'. ...


Please don't take this comment too literally.

Yes, for eighty, put your horizontal antenna as high as you can manage. But
if 45 feet is the best you can manage, go with it.

My antenna is 46 feet high, and I work the world on eighty.

Put your eighty-meter antenna as high as you can and then get on the air
and have fun. You'll work plenty of guys all over the world.

73,

Hank, W6SX
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Re: [Elecraft] Slightly OT: Logging programs for the Mac

[Hank Garretson]

I recommend Skookum Logger.

http://k1gq.com/SkookumLogger/index.html

73,

Hank, W6SX


On Thursday, June 19, 2014, Joshua Gould jg.k8...@gmail.com wrote:
 For those of you that run Macs, what software do you use for logging.  So
 far, I've only found two programs, Aether and MacLoggerDX.  Aether seems
 like it would work pretty well, but not having a KX3 yet, I don't know how
 well the software is able to pull data from the radio.

 I've also been playing with N1MM's logging app in a windows VM.

 Anyone have any suggestions?

 Thanks
 Joshua Gould
 K8WXA
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Re: [Elecraft] Balanced tuner for sale

[Hank Garretson]

On Thu, May 15, 2014 at 8:58 AM, Vic Rosenthal K2VCO k2vco@gmail.comwrote:

 Not to overdo my posting privilege, but I have something that might be of
 interest for sale: An old Johnson 275-watt Matchbox, which is a
 link-coupled balanced tuner for 80-10 meters (although WARC bands do not
 appear on the bandswitch, it usually works on 30-17-12 when set to an
 adjacent band).

 The 275-watt rating is for plate-modulated AM, and I've used it at 1200W
 CW without issues. Naturally it depends on the impedance it sees.


This is my experience also. The 275-watt Matchbox can handle a lot of
power as long as tuning is done at low power.

73,

Hank, W6SX


 I'm asking $85. A picture and more details are at
 http://www.qsl.net/k2vco/StuffForSale/Stuff%20for%20Sale.html

 --
 73,
 Vic, K2VCO
 Fresno CA
 http://www.qsl.net/k2vco/

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[Elecraft] Fwd: Take Two: 2000A RCU and K3 CAT

[Hank Garretson]

-- Forwarded message --
From: Hank Garretson w...@arrl.net
Date: Sat, Feb 22, 2014 at 9:36 AM
Subject: Take Two: 2000A RCU and K3 CAT
To: acom-l...@yahoogroups.com


I moved the Y-cable to between the P3 and computer. Everything is now
working perfectly. There is stuff going on between the K3 and P3. The
computer cable out of the P3 looks like a K3 to both the computer and to
the 2000A RCU.

73,

Hank, W6SX


On Sun, Feb 16, 2014 at 1:42 PM, I wrote:

Just got the new ACOM 2000A RCU. Hooked it up to my K3 and N1MM Logger
 using Figure 7-2 CAT Connection by RS-232 Y cable.

 Also have the P3. Y cable is between K3 and P3. A RS-232 cable goes from
 P3 to computer.

 K3 baud is set at 38,400.

 RCU is set for CAT-K3.

 It works with hiccups. 2000A follows K3 frequency. When I change band or
 band segment, I hear the 2000A stepped motors--just as expected and wanted.

 BUT, with K3 sitting on a steady frequency, the ACOM hiccups. At random
 intervals (for example: 8 seconds, 8 s, 61 s, 10 s, 20 s, 15 s, 23 s, ...)
 I hear the 2000A stepped motors as if 2000A is changing frequency. RCU
 frequency segment indication momentarily changes to a different, random
 frequency segment and then goes back to the right segment.

 Seems like a polling issue, but I don't have the foggiest.

 Perhaps K3/P3 should be treated as a single unit, and I should put the Y
 cable between P3 and computer?

 Help please. Suggestions?

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Re: [Elecraft] Astatic D-104 Microphone

[Hank Garretson]

On Mon, Jan 27, 2014 at 5:29 PM, Don Wilhelm w3...@embarqmail.com wrote:

The D-104 is still a great microphone when adapted to modern low impedance
 rigs.


Each time this subject comes up, I say the same thing, and it is true.

Old D-104s, crystal or cermanic, do not need any adaptation to the K3. I
have used my classic crystal D-104 as-is with the K3. On-the-air checks
with audio maestro K9YC confirm that it gives outstanding audio. As Don,
suggests just be careful with gain settings. Try it for yourself without
the FET amplifier.

73,

Hank, W6SX
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[Elecraft] Second Try-- 45/75 Baud

[Hank Garretson]

-- Forwarded message --
From: Hank Garretson w...@arrl.net
Date: Sat, Dec 21, 2013 at 9:58 AM
Subject: 45/75 Baud
To: Elecraft Reflector elecraft@mailman.qth.net


FSK D. Using MMTTY to decode and FSK to transmit.

Question.

Does 45 versus 75 baud make any difference to the K3. Or does it just
affect K3 decode? Or ... ?

73,

Hank, W6SX
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Re: [Elecraft] Second Try-- 45/75 Baud

[Hank Garretson]

Thanks Lyle. That's what I suspected.

Season's Greeting Everyone.

Celebrate Exuberantly,

Hank, W6SX


On Tue, Dec 24, 2013 at 1:03 PM, Lyle Johnson kk7p4...@gmail.com wrote:

 It only affects the internal encoder and decoder functions.

 73,

 Lyle Kk7P


  FSK D. Using MMTTY to decode and FSK to transmit.

 Question.

 Does 45 versus 75 baud make any difference to the K3. Or does it just
 affect K3 decode?



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[Elecraft] 45/75 Baud

[Hank Garretson]

FSK D. Using MMTTY to decode and FSK to transmit.

Question.

Does 45 versus 75 baud make any difference to the K3. Or does it just
affect K3 decode? Or ... ?

73,

Hank, W6SX
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Re: [Elecraft] OT: Installing PL-259's

[Hank Garretson]

On Tue, Nov 12, 2013 at 12:45 PM, Vic K2VCO k2vco@gmail.com wrote:

Not if it's removed carefully and tinned. I've done it hundreds of times.


Care helps. But for me usually isn't good enough. After tinning, I use a
small flat file to smooth the tinned braid. Then I apply a thin layer of
flux on the tinned braid.

Works like a champ every time.
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Re: [Elecraft] Keyer weighting

[Hank Garretson]

It is very important to distinguish between Key Weighting and Key
Compensation.

See pages 15 and 16 here: http://k1el.tripod.com/files/WKUSB_QuickStart.pdf

The K3 has Key Weighting. What it (additionally) really needs is Key
Compensation.

CW Exuberantly,

Hank, W6SX
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Re: [Elecraft] Keyer weighting

[Hank Garretson]

On Fri, Aug 23, 2013 at 9:26 PM, Fred Jensen k6...@foothill.net wrote:

Listening to my K3 off the air, I can't discern any shortening of the
 elements that I did with the -830. Why would I need Key Compensation in my
 K3?  I tried to measure it with the scope ... sort of inconclusive results
 mainly because I don't know how to work it but if the K3 keying is clipping
 anything off the beginning of the elements, I sure can't hear it.  Am I
 missing something?


Scope tests are indeed inconclusive because of rise and fall times.

What is important is not how things may sound to me when I listen, but how
things sound to the people who have to copy me.

I have run on-the-air tests with accomplished CW operators who are at the
top of the game and whom I respect very much. After quite a few iterations,
I ended up with CW WGHT 1.10, CW QRQ OFF, WinKey Key Compensation 07. That
worked best for them and for me.

Please note that Key Compensation is not very important at slower speeds.
It's above 30 WPM that Key Compensation is really important.

73,

Hank, W6SX
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[Elecraft] K3 PL1 Error Take Two

[Hank Garretson]

Ken, K3IU hit the nail on the head in his Sunday email.

I talked with Howard at Elecraft service first thing Monday morning. He had
already seen my email. He suggested removing the front panel, deoxITing the
many pins, and reseating the connectors a few times. Worked like a champ.
Problem solved. I expect everything to be fine, but sometime after contest
season, I may send the unit in to have silver-plated connectors replaced
with gold-plated connectors.

Thank you Ken. Thank you Howard. Thank you Elecraft.

73,

Hank, W6SX
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[Elecraft] K3 PL1 Error

[Hank Garretson]

I'm getting K3 PL1 Error and no transmitter output.

After cooling a bit, PL1 voltage measures 5.9 volts. I get intermittent
output when I send a string of dits with PL1 voltage showing 5.9 volts when
a dit gets transmitted and 0.0 volts when a dit doesn't get transmitted.

Help please. Any suggestions?

73,

Hank, W6SX
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Re: [Elecraft] Optimum Monitor for the P3 SVGA?

[Hank Garretson]

On Tue, Jul 23, 2013 at 2:28 PM, Dave Hachadorian k6ll.d...@gmail.comwrote:

The higher they are, the more time history you can see.


Is that the case? I thought I asked question about more history with SVGA
awhile back, and I though the answer was that history duration was
established by P3.

Did I misinterpret? In particular, right now the way my P3 is setup I get
about ten seconds of waterfall history. If I keep those P3 settings, can I
see more than ten seconds of waterfall on the SVGA? If yes, how much more?

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] 20 meter CW

[Hank Garretson]

On Wed, Jul 3, 2013 at 7:21 AM, N3XX n...@charter.net wrote:

It is very simple to check the callsign on qrz.com and see the qth.


Not necessarily. Unless the guy has edited his QTH on QRZ.com, what you get
is the mailing address registered for the license. This may or may not be
the actual QTH.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Hank Garretson]

Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK keying.
(Now available to all as Beta DSP rev. 2.8.)

http://www.frontiernet.net/~aflowers/k3beta/

It is also interesting to look at before and after FSK signals in the time
domain.

https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

K3 FSK has always had a small amplitude difference between mark and space.
The transition has always been abrupt, Photo 1. With the new beta software,
the transition is much more gentle, Photo 2. Bravo!

Diddle Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Hank Garretson]

On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop als...@nc.rr.com wrote:

I notice that in the narrower signal spectrun the two tone peaks have the
 same amplitude.

 Many of us have wondered why our watt meters diddled like the RTTY tones.

 Hopefully that is fixed too.


Not fixed. See the before and after photos.
https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK

Which brings up one of my crotchets.

One of the most useful and important station accessories is an
oscilloscope. Much more useful than one of those multi-hundred dollar watt
meters--who cares if it is 150 or 153 watts?

An oscilloscope centered before your eyes can instantly tell you a whole
bunch about your signal.

Is your keying too hard? Are you overmodulating? Are you overcompressing?
Are your RTTY mark and space different in amplitude? Is your amplifier
adjusted correctly? Do you have the right antenna for the right band
selected? Has something gone wrong with your antenna? Do you have hum on
your signal? Etcetera.

If more hams had a monitor scope, we wouldn't have so many rotten signals
on the air.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] A Different View--K3 Reduced-bandwidth RTTY Analysis - Question

[Hank Garretson]

On Mon, Mar 25, 2013 at 2:28 PM, Lee Buller k...@swbell.net wrote:

How do you (the people who use FSK) key the radio through the RTTY program?
  I
 am using AFSK and have good experiences, but I wonder how keying is done
 through
 the software.


Using a simple transistor keying circuit attached to K3 Accessory jack pin
1. Check your K3 manual and pages 5 and 7 at http://www.aa5au.com/rtty.html.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] VOX on the K3

[Hank Garretson]

It's ease to decide for yourself. Push and hold the TEST button. Listen to
yourself using MON. Play with the various VOX settings like GAIN and DELAY.

73,

Hank, W6SX



On Wed, Feb 20, 2013 at 8:29 AM, K5HM k5hm@gmail.com wrote:

 My new K3 has VOX capability of course.

 I haven't used VOX since the fifties when SSB first came out.  Back then it
 was fairly annoying since it usually clipped the first syllable short when
 you started to speak.

 Just wondering if anyone is using it regularly.  Is it better than PTT or a
 foot switch in contests or casual operation?

 73,
 Ron, K5HM
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Re: [Elecraft] Antenna static charge precautions - any tips?

[Hank Garretson]

On Sat, Sep 8, 2012 at 7:07 PM, stan levandowski sjl...@optonline.netwrote:

Guess, I better go out and buy a 22K resistor now and fnish the job ;)


I use a 3 megohm resistor. Since the purpose is to bleed off static
buildup, high resistance is fine. Depending on your antenna, frequency,
feeder impedance, and feeder length, who knows what the impedance is at the
shack. It could be above 2000 ohms in which case ten percent of your power
would be dissipated in the resistor. Go high resistance and you won't have
to worry.

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] P3SVGA Query

[Hank Garretson]

I'm sure I could dig out the answer from manual, but please a quick
question:

Can one have different parameters for P3 and SVGA. For instance, SCAN 10
kHz on P3 and SCAN 100 Hz on SVGA?

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] [K3-KPA500] SWR jumps up with 5 second key down

[Hank Garretson]

On Mon, Jun 4, 2012 at 11:30 AM, Willis wrco...@yahoo.com wrote:

For 500 watts use kw rated antennas.  RG 213 is good but wire and loading
 need to be #14.



Not my experience. For over five decades, I have used #18 wire for many
antennas. Current antenna has segments of #18 with no ill effects at 1.5kW
output.

73,

Hank, W6SX
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Re: [Elecraft] Troubel TX on K3

[Hank Garretson]

Lieber Karl-Heinz,

First thing to check: Make sure TX on right side of display isn't
blinking. If it is, press and hold TEST.

73,

Hank, W6SX



On Wed, Apr 11, 2012 at 10:53 AM, Karl-Heinz - DL2FAG dl2...@arcor.dewrote:

 Hello,

 I   am   running   into some trouble with the K3 after playing around
 with the unit (macro, settigs etc.)
 After  a while I recognized, that the K3 does not transmit - no output in
 CW nor
 in SSB - even PTT does work.
 Tuning  with  the  TUNE-Button  works  and  give the adjusted output
 power.

 Seems  that  maybe I have misconfigured a parameter - but doesn't find
 it.

 Any  idea  from  the  readers of the refelctors - where I have to look
 for?

 Thanks


 --
 73 de
 Karl-Heinz - DL2FAG
 mailto:dl2...@arcor.de

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Re: [Elecraft] P3 for Windows anyone?

[Hank Garretson]

On Sun, Apr 8, 2012 at 9:05 AM, tomb18 tom...@videotron.ca wrote:

1) Real time display of the P3 screen in a Windows 7 window, supporting
 resolutions of the SVGA with up-scaling and down-scaling.
 2) Control of span, scale, averaging, reference level and the ability to
 assign the settings of one or all of these to a function key (8 of them)
 3) Using the mouse to assign the markers and control the K3, and have
 instant recall of several of them at the click of a button
 4) Do your have other ideas and wishes?


Yep, fully integrated P3 band map display of packet, Skimmer, self, and
worked spots. It's nice to see signals on the P3; it would be really nice
to have callsigns assigned to them.

(I'm not sure, but I think LP-Pan does all this.)

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] Contest RST reports

[Hank Garretson]

On Mon, Feb 20, 2012 at 2:17 PM, ERIC MANNING emann...@cs.uvic.ca wrote:

If you want an accurate signal report, the place to go is RBN
 http://www.reversebeacon.net/main.php


Skimmer and RBN are many wonderful things, but I'm not sure they are
signal-level accurate. The signal level Skimmer gives you is SNR.

1. Noise levels will vary among different Skimmers.

2. Noise level will vary over time (both short- and long-term) for an
individual skimmer.

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] time for KPA1500 - but why no tubes?

[Hank Garretson]

On Mon, Feb 20, 2012 at 8:18 PM, Ron D'Eau Claire r...@cobi.biz wrote:

Note that No Tune means, simply, Fixed Tuned, set for a 50 ohm
 non-reactive load on each band. If we don't have an antenna reasonably flat
 across the whole band we add an Antenna Tuner to the output which is
 simply moving the tuning we used to do on the xmtr output to an outboard
 box!


Not exactly. My No Tune ACOM 2000A will automatically handle up to 3:1
SWR on all bands except 160 where the limit is 2:1. Sometimes output power
is reduced, and sometimes an external tuner is helpful. but for the ACOM at
least, No Tune does not mean Fixed Tune.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] open wire feeders

[Hank Garretson]

On Sat, Dec 31, 2011 at 9:35 PM, Don Wilhelm w3...@embarqmail.com wrote:

Keep in mind that the length of an unmatched feedline is critical to the
 success or failure of such a system.  That is a factor that is seldom
 mentioned in posts that say a particular antenna works well and loads
 well - the simple fact is that the feedline type and length are critical
 elements in that antenna system - to say that a 100 foot dipole works
 great is not sufficient, one needs to state the type and length of the
 feedline as well as the length of the antenna.



Lots of good comments. I think part of the original post asked about
keeping RF out of the shack.

Assuming one does a reasonable job of keeping both antenna and open-wire
feedline balanced, there is a fairly easy answer. Operative word here is
reasonable--perfection is the enemy of good enough. Don't let all the
horror stories stop you from trying. People, including me, have been using
balanced feeders and center-fed dipoles with good results for a very long
time.

Here's how to minimize RF in the shack. Make the length of one leg of the
dipole plus the length of the feedline as close as possible (practical) to
an odd multiple of a quarter wavelength at the frequency of interest. With
a dipole, there is an RF voltage maximum at the far end. One quarter
wavelength away there is a voltage minimum, another quarter wavelength
away, a voltage maximum. Etcetera. An odd multiple of quarter wavelengths
puts a voltage minimum in the shack.

In addition to minimizing RF in the shack, this approach puts minimum RF
voltage and maximum RF current in the shack. This means relatively low
impedance in the shack which means relatively easy job for the tuner.

This approach is easy for a single band. For multiple bands, it can be
tricky. Again, perfection is the enemy of good enough--just try it.

There is a useful chart in the 1974 ARRL Antenna Handbook. Chart is posted
at https://picasaweb.google.com/StarrGarretson/Fig353#5692717146409405762 .
L in the chart is total length of one leg of center-fed dipole plus
feedline or total length of antenna plus feedline for an end-fed antenna.
When using the chart, keep in mind, that 1974 was before WARC bands.

After all of the above, now my experience. For fifty-six years at eleven
locations, my antenna has been an eighty-meter dipole (sometimes very
contorted) or inverted-V put up with whatever supports I could muster.
Open-wire feedline was whatever length was convenient. Using a Johnson
Viking KW Matchbox with either 700 or 1,500 watts output, I rarely had RF
in the shack on all contest bands eighty through ten. The few times I did,
it was simple to add a bit of feedline to solve the problem.

Be a ham, try it, and have fun.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] Incredible noise tornado on 16om

[Hank Garretson]

G'Day Gents,

Do you both really mean 24/7?

If so, what does that say about source location and/or power?

I think you are both Beta testers. Perhaps some new software for P3 or K3?

73,

Hank, W6SX


On Thu, Nov 10, 2011 at 12:39 AM, Willard Myers k...@me.com wrote:

 Yes, but I haven’t found the source. Mine is also on 24-7, drifts 100 kHz
 or so, and has multiple humps.

  Bill, K1GQ

 On 2011.11.09, at 19:29, Vic K2VCO wrote:

  Has anyone ever seen anything like this? It seems to be there 24-7.
 
  http://www.qsl.net/k2vco/160noise.jpg
 
  Another view with a wider span:
 
  http://www.qsl.net/k2vco/160noise1.jpg
 
  --
  73,
  Vic, K2VCO
  Fresno CA
  http://www.qsl.net/k2vco
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Re: [Elecraft] Test

[Hank Garretson]

On Sun, Jul 17, 2011 at 3:06 PM, Bob Nielsen n...@clearwire.net wrote:

That's a feature of Google mail and there is no solution.



I can see my reflected posts to a mailing list by clicking on All Mail on
the left side of the Google mail viewer.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] K3 Feature Request

[W6SX Hank Garretson]

It would be wonderful if there were a CONFIG option to have CWT SPOT 
zero beat using RIT instead of VFO A. This would be very useful 
during contests when CQing.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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Re: [Elecraft] P3

[Hank Garretson]

I find the P3 knob smallish and unnatural to tune. I find the P3 knob tap
not to my liking. My hands are busy enough during a contest, that I don't
like to move one to the P3.

Here's what I do.

Tune the B marker using VFO B knob. Select the frequency by tapping K3 A/B.
Fine tune with VFO A knob.

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light



On Mon, Jun 20, 2011 at 12:31 PM, Bob Fuller b...@fullermail.org wrote:

 I’m new on the reflector as of today.  I searched for this and didn’t see
 anything that addresses my thought and I hope I’m not repeating something
 that has already been covered somewhere.  If so, please let me know.

 To me it would be useful if the following capability were available to me:

 When I move a marker with the P3 knob and then tap it to tune the K3
 frequency to my selection, I almost never hit  the exact carrier frequency
 in SSB.  I then have to move my hand over to the K3 VFO for fine tuning.
  It’s not a big deal but over and over in a contest this might become time
 consuming.

 If, after tapping the select knob on the P3 it would be useful to me if,
 for a few seconds, the knob were to become a direct K3 fine frequency tune
 control.  I wouldn’t have to switch back and forth between the P3  K3 all
 the time.  If the knob isn’t turned for a short time, say 5-seconds, it
 would revert to its normal operation of moving the marker only.

 Others’ thoughts on this would be welcome.

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Re: [Elecraft] [K2] wire antenna lengths for portable operations

[Hank Garretson]

A good starting point is to make length of radiating wire and length of
counterpoise odd multiples of a quarter wavelength at frequency of interest.
This puts relatively low voltage at feed point with resulting relatively low
impedance and easy matching.

73,

Hank, W6SX



On Fri, Jun 17, 2011 at 7:20 AM, John Shadle sha...@katzenfisch.com wrote:

I'm headed up to KL7-land next week and am going to take the K2 with
 me. I was thinking about using the KAT2 to tune a wire attached to the
 BL2 (at the 1:1 setting).

 Probably going to cut some teflon-coated wire this evening and pack it
 away in the bag.

 I'm seeking input on the best lengths of wire to cut for the active
 part of the antenna as well as the counterpoise.

 If you have any other comments on this setup, I'd love to hear them,
 too. In the past, I've used the K2 attached to my homebrew vertical
 (SGC SG-239 at the base of a elevated ground plane vertical), so this
 is my first adventure with random wire antennas.

 Thanks!
 -john W4PAH

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Re: [Elecraft] Fwd: D 104

[Hank Garretson]

After reading all the comments about doing this and doing that, all I can
say is ...

I've made tens of thousands of SSB contacts using a fifty-year-old D-104
directly into the K3 with no resistors, no amplifiers, no transformers, no
nothing. Audio quality reports were always outstanding.

Don't let the naysayers discourage you. Try it. It will work just fine.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] SSB voice auto-tune

[Hank Garretson]

As a hearing-challenged K3 operator, this is something I would love to see
(hear!).

73,

Hank, W6SX



2011/4/29 Eduardo González edujo...@gmail.com

 It is feasible to implement SSB auto-clarifier (Spot function on SSB)
 on firmware of K3?

 I'm a researcher in Digital Signal Processing and based on the work of
 Robert Dick (Tune SSB Automatically, Robert Dick, QEX, January 1999,
 pp 9-18), i wrote code to do auto-clarification in real time and tried
 other methods (see references below). I'm more theoretical than
 practical, so i don't have suficient expertise running DSP code on
 embeded systems. The code developed by me only run on PC system and
 perspective is great, auto clarification is running !

 Is there patent limits?

 DSP hardware of K3 is capable of do more than two FFT in cascading,
 Cepstrum, Smoothing.
 It would very nice just to press SPOT button, and get voice tuned, as
 do CW and AM-S. It will have limitations, but i think it would be
 nice.

 References:
 Please, check my paper Methods of Carrier Frequency Recovery in
 SSB-SC Modulation to be applied in Portable Communication Equipments
 http://redalyc.uaemex.mx/redalyc/pdf/707/70712302.pdf
 it explain set of methods that i have tested and last page have
 important references.

 Excuse my poor english.

 Eduardo González (YY4GMJ)

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] key dot weight

[Hank Garretson]

I gently suggest that what the K3 needs is a Configuration option for Keying
Compensation. Keying Compensation is different from Key Weighting. See page
10 of this document for a good explanation.
http://k1el.tripod.com/files/Winkey10.pdf

The K3 needs about 6 milliseconds of Keying Compensation to sound and be
right. I use both the K1EL WinKeyer and CMOS Super Keyer II which provide
Keying Compensation adjustment.

If Elecraft implements Keying Compensation, please make it effective for
both the internal keyer and external keying. Right now, using the internal
keyer produces distinctly light keying at any speed above 25 WPM. Note, it
will not sound light to you because the monitor side tone has no shaping.
But the signal going out on the air is light.

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] New Amp

[Hank Garretson]

The K5RC/W7RN amplifiers are made by an Australian company. They are not
Alphas.

73,

Hank, W6SX



On Sat, Apr 23, 2011 at 8:32 PM, Dale Harding K7DNH dh2...@sbcglobal.netwrote:

I don't own a 9500 personally - however Tom K5RC has a wall full of them (
 Six! ) being fed by his four K3's at his station - W7RN.  Here is a link
 where you can see them.. but you need to be ready to hit the pause button
 as
 it is a VERY short video.. You can see a couple of the K3s and the wal Tom
 is facing has the Alphas mounted into it.

 It is an amazing station to visit.
 http://www.youtube.com/watch?v=6RQhhqV3OVQfeature=related

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[Elecraft] Fwd: Biathlon Wow, Wow, WOW!

[Hank Garretson]

-- Forwarded message --
From: john hauter johnny.hau...@gmail.com
Date: Mon, Mar 28, 2011 at 9:19 PM
Subject: Re: Biathlon Wow, Wow, WOW!
To: Hank Garretson w...@arrl.net


Hank...Jack LaLanne is dead...awesome stadium...when i skied down into
the big mosh pit i was blown away by the range and the audienceway
cool...! jh
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Re: [Elecraft] Biathlon Wow, Wow, WOW!

[Hank Garretson]

My apologies to the whole list for earlier mis-post. Self-completing address
book got the better of me. Sorry.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] P3 Center Frequency

[Hank Garretson]

I have K3 M1 and M2 programmed to QSY up and down 5 kHz (for use during
North American Sprints).  K22;DN7 and K22;UP7.

Moves K3 frequency up or down 5 kHz.  But ...

P3 Center Frequency, both Tracking and Fixed Mode, does not change.  With a
slight movement of VFO knob, P3 Center frequency jumps to the correct
frequency.

Any hints on how to fix this?

K3 MCU 4.25, DSP1 2.71, FPF 1.14.  P3 MCU 1.00.


Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] P3 Enhancement Request

[W6SX Hank Garretson]

In Tracking Mode, there is a line extending from VFO A cursor to top of screen.

For Fix Track Mode, it would be very nice to have same line extending 
from VFO A cursor (wherever it is) to top of screen.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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Re: [Elecraft] unequal power output per tone in FSK

[Hank Garretson]

Mark and space switch between two frequencies 170 Hz apart.  There should be
no change in amplitude between mark and space.

With my K3 the difference between mark and space is about 1 dB.  Too much.
Elecraft is aware of the problem, and the sooner it gets fixed the better.

Side note.  There were some pretty wide RTTY signals in the Roundup.  It
would be interesting for someone smarter than me to calculate the bandwidth
of a 0-dB-difference-between-mark-and-space signal and the bandwidth of a
1-dB-difference signal.  I sure hope my signal wasn't one of the wide ones.

73,

Hank, W6SX


On Mon, Jan 10, 2011 at 8:54 AM, n...@widomaker.com wrote:

I may be all wet here, but I seem to think this is understandable.
 FSK uses two tones, one is the MARK and one is SPACE.  There are only
 two states, you will have one or the other tones on the air all the
 time.  One tone is the base, and if the signal is un-modulated, it
 would be transintted 100% of the time.  The other tone is a pulsed
 deviation from the base, so is only ON for short pulses when needed
 to form a character.  Since there is hardly ever an even distribution
 of MARK/SPACE, the power out will not be the same.






Ski Exuberantly,

Hank

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] K3 beginners config setting?

[Hank Garretson]

On Sat, Sep 18, 2010 at 2:18 PM, ussv dharma ussvdha...@yahoo.com wrote:

Perhaps, since the K3 IS so versitle, there should be a setting for
 beginners.  Using this setting sets everything to a reasonable setting for
 us that dont understand all the K3 settings.  I dont mean a reset, but one
 for beginners.


The Elecraft K3 default settings!?!?


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] LP-PAN and E-MU 0202 For Sale

[Hank Garretson]

For sale: Like-new LP-PAN and a like-new E-MU 0202 USB sound 
card.  Full documentation.   Includes Radio Shack patch cables.  $210 
including USPS shipping.


73,

Hank, W6SX

760-934-7665

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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Re: [Elecraft] D-104 preamp ...

[Hank Garretson]

I said it once, and I'll say it again.

My 1956 crystal-element D-104 works great with my K3.  I plugged it in and
did an on-the-air check with K9YC.  Jim reported outstanding audio.  Before
modifying your D-104 or building a preamp, try the bare-bones D-104.

K9YC: If you don’t have a problem, don’t solve it.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] D104 mic

[Hank Garretson]

On Fri, Jul 9, 2010 at 5:00 PM, Don Wilhelm w3...@embarqmail.com wrote:

Unmodified, it will probably sound terrible (very 'bright with lots of
 highs, weak lows), but with a bit of work, it will sound great - just
 like Astatic intended.


My experience is different.

When I first got my K3, I used an unmodified crystal-element D-104 I've had
since 1956.  No amps, no anything.  I didn't do anything special with the K3
except adjust gain and ALC controls per the K3 manual.  On the air checks
with guru K9YC and on the 3830 net after an NCCC Sprint resulted in superb
voice-quality reports.

So, plug it in and give it a try (with on-the-air checks from people you
trust).

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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[Elecraft] K3 Audio Balance

[Hank Garretson]

I think the answer is no, but I'll ask anyway.

For those of us who are asymmetrically hearing impaired, is there an audio
balance control menu option for a single-receiver K3?

Ski Exuberantly,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] QSK CW: TX DLY vs CW WGHT with internal keyer

[Hank Garretson]

I think what we are really talking about is Keying Compensation, not Code
Weight.  I use a K1EL WinKeyer with Keying Compensation set to 06 ms with my
K3.  See pages 15 and 16 here for good discussion of Keying Compensation,
http://k1el.tripod.com/files/WKUSB_QuickStart.pdf .  My twenty-plus-year old
CMOS Super Keyer II also has Keying Compensation option.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light


On Thu, Mar 25, 2010 at 10:22 PM, Bill VanAlstyne W5WVO w5...@cybermesa.net
 wrote:

Just thinking out loud here, having recently upgraded my 3-500Z amplifier
 with fast vacuum T-R relays...

 The default (and fastest) QSK transmit delay setting (TX DLY) is 8 ms. At
 20 WPM, this shortens the length of a nominal 60 ms dit element to 52 ms
 long. To regain this lost dit time when using QSK, the default setting for
 the CW WGHT element-to-space ratio is 1.15. (52 ms X 1.15 = 60 ms
 approximately.) So the 1.15 default weight factor was seemingly arrived at
 by using 20 WPM as a nominal QSK code speed.

 Assuming this reasoning is correct (Wayne/Eric, please enlighten me if it
 isn't), two things come to mind:

 First, since amplifier T-R speeds below 4 ms are readily achievable using
 vacuum RF relays, and faster than that using PIN diodes, it might make sense
 to make TX DLY settings of less than 8 ms available -- say, down to 2 ms,
 while still leaving the default at 8 ms.

 Second, as QSK code speed is increased, the TX DLY factor (whatever it is,
 currently 8 ms by default) becomes a larger and larger proportion of the
 element time, requiring a larger weight ratio to correct for the TX DLY
 shortening. For example, at 25 WPM (48 ms element) and TX DLY = 8 ms, a CW
 WGHT setting of 1.20 would be correct; at 30 WPM (40 ms element), again with
 TX DLY = 8 ms, a CW WGHT setting of 1.25 would be correct; and so on. Might
 it make sense to optionally have CW WGHT track with the user's code speed
 setting during QSK operation? (You wouldn't want to do this in non-QSK CW
 mode, of course.) The tracking formula would be based on the user's TX DLY
 setting, whether 8 ms or something faster/slower.

 Of course, this would only apply if the internal CW keyer were being used;
 if using an external key or keyer, you'd be stuck with a fixed CW WGHT
 setting...

 Comments?

 Bill W5WVO

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Re: [Elecraft] RTTY via FSK-D

[Hank Garretson]

I've never had occasion to use it and maybe I misunderstand what it is
supposed to do, but it looks as if one can switch MMTTY transmit logic as
follows:

Open MMTTY

Option

Setup MMTTY

TX

Check or uncheck Invert Logic

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] K3 in RTTY is great

[Hank Garretson]

On Sun, Feb 14, 2010 at 5:34 PM, K3RWN rwnewbo...@comcast.net wrote:

I have a modest station with 3 ground mounted verticals, no beams or towers.
 I just completed the CQ WPX RTTY contest.  My score improved by about 35%
 over last year.  The only change at my station during the past year was the
 K3.  It decodes weak RTTY signals like a champ.


Good going.  Don't want to rain on the K3 parade, but conditions were at
least 35% better this year than last.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] OT--A Suggestion About Printers

[Hank Garretson]

On Mon, Dec 7, 2009 at 8:19 AM, Bob Maser, W7AQK, bmas...@q.com wrote:

 When you print, when the print screen comes up and before you hit the OK to
 Print key, click preferences, set the quality level to Fast Draft and then
 go to the Color tab and click on grayscale.  Your printer will print faster
 and use much less ink.  Try it.

Even better.  Under Control Panel, go to Printers and select your
printer.  Under preferences, select Fast Draft and Grayscale.
This will now be the default for your printer and you won't have to
select it every time you print.  If you want high quality and/or color
for something, you can select it as W7AQK suggests for the individual
job, but your default will stay the same.

73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light
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Re: [Elecraft] [K3] Non Amplified D104

[W6SX Hank Garretson]

At 04:05 PM 28 04 2009, -.-.  --.-N3TU -.-.  --.- wrote:

Anyone ever use the non amplified D104 mic?

At 04:14 PM 28 04 2009, Jim Brown, K9YC wrote:

But it should work fine with the K3.
Plug it in and get some signal reports from a trained listener, then
tweak the TX equalizer if it needs it. I suspect that it won't need
much tweaking.

I use a forty-year old non-amplified D-104 with my K3.  Works 
find.  Indeed, I had K9YC check my audio.  After a bit of fiddling, 
Jim recommended no TX equalization for me.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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[Elecraft] EQP Where's the Buzz?

[W6SX Hank Garretson]

The Elecraft QSO Party is coming up this Saturday, 14 March.

http://www.elecraft.com/

Click on EQP 2009 on the left.

Where's the Buzz?  Let's get on for this one.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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Re: [Elecraft] K3: Configuring N1MM to send CW

[W6SX Hank Garretson]

At 08:43 AM 16 02 2009, W0MU Mike Fatchett wrote:

To key cw you will need some type of keying circuitry.

You CAN key the K3 using RS-232 command without a keying 
interface.  See page 18 of the manual.


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 

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Re: [Elecraft] Silly question - what is KEY OUT?

[W6SX Hank Garretson]

At 10:28 AM 22 01 2009, Darwin, Keith, NA1S wrote:

OK, so how closely will it follow the keying if I'm in QSK 
mode?  Pretty close, I assume.



I think you and the other responders are missing a key point.  As I 
understand it, in QSK mode, when you close the K3 Key In, the Key Out 
closes and then something like 8 milliseconds later the K3 starts 
transmitting.  When you open K3 Key In, the K3 keeps transmitting for 
8 milliseconds to make up for the 8 milliseconds lost at key closure, 
and then Key Out stays closed for another 8 milliseconds before 
opening.  The 8 millisecond pad on each end is to make sure that your 
amplifier switches both on and off without RF present.


So to answer your code practice oscillator question.  No.  The code 
practice oscillator will be on something like 16 milliseconds longer 
than your key closure.  You might or might not hear the extra 16 
milliseconds.


I think that the 8 milliseconds, or whatever it is, is menu 
adjustable, but I have just accepted the default.  It keys my AL-1200 
bias and an external vacuum-relay TR switch perfectly for full QSK at 
40 WPM which is as fast as I ever go.



73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light ___
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Re: [Elecraft] [K3} fatiguing auido, high noise environment

[W6SX Hank Garretson]

Try playing with RX-EQ.  In my case, I set PITCH to 800 Hz and RX-EQ 
800 Hz to +16 db.  All other RX-EQ bands are set to -16 dB.  For me 
this makes listening much less fatiguing.  Be aware that if you 
narrow the DSP to something like 100 Hz, then this scheme won't work 
for reasons someone else can explain.  I never go narrower than 200 
Hz and am delighted with the results.  Good luck.



73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 


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Re: [Elecraft] Six-meter Antenna Tuner

[W6SX Hank Garretson]

Thank you to all who responded, both on and off list, to my 
request.  First thing I'll try is my two commercial tuners with 
roller inductors.  As suggested, they just might work.  If not, I 
have found link-coupled designs in Bill Orr's 1967 Radio Handbook and 
the 1949 ARRL Radio Amateur's Handbook (cover price $2.00!) that 
should be easy to scale to six meters.  Thanks everyone.



73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 


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[Elecraft] Six-meter Antenna Tuner

[W6SX Hank Garretson]

Since it is part of the K3 package, I would like to try six 
meters.  My one and only antenna is an eighty-meter dipole 46 feet 
above ground fed with poly ladder-line.  I'm looking for suggestions 
for a 100-watt coupler that will tune a balanced-feedline antenna at 
50 MHz.  I do not have the K3 ATU and am looking for something 
considerably less expensive.


All ideas are welcome, but please don't suggest some other 
antenna.  My antenna is what it is.  Because of town esthetics and 
very harsh winter weather I'm lucky to have the antenna at all.



73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 


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[Elecraft] K3 Key Out

[W6SX Hank Garretson]

The K3's Key Out is rated for +200V at 5 Amps.


Inside the K3, is Key Out a relay or solid state?


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 



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Re: [Elecraft] Re: K3 Beta Firmware, Revision 2.31

[Hank Garretson]

You're welcome, Tom. What else can we design for you today?  :)


The 1.5 kW amplifier?


73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 



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Re: [Elecraft] RTTY filter for K3

[W6SX Hank Garretson]

At 01:14 AM 18 05 2008, Axel Kaiser, DL3ZH wrote:

This I can confirm also with my current OMNI VI+ which does not 
allow me to copy RTTY signals with a 250 Hz filter .


Lieber Axel,

I use the 250 Hz all the time with my Omni VI+.  Great performance: 
good copy and little interference.  Perhaps PBT needs tweaking.  I 
use the waterfall display and adjust PBT to center passband on the 
two RTTY tones.



73,

Hank, W6SX

Mammoth Lakes, California

Elevation 8083 feet in John Muir's Range of Light 



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