[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

  Both bands had 4 S-unit QSB.  On twenty meters there was more noise 
on the inverted-V compared to the 1/4 wave vertical.  On forty meters 
the vertical had more noise.  The new antenna performed well bringing 
more signals out of the noise.


   The time change for forty meters helped too.  The signals were 
stronger but the QSB was deep.  But it was still too early; thirty 
minutes later would let the band improve.  I got email after the net 
from a few of you with ESP signal reports.  Previously, copy was 
impossible.  I'll keep testing to figure out when 40 meters is better.  
Too late and the traffic nets begin.  Too early and the band is not 
awake.  Luckily the days are growing shorter.



  On 14050.5 kHz at 2200z:

NO8V - John - MI

W0CZ - Ken - ND

K4TO - Dave - KY

K4JPN - Steve - GA

K6XK - Roy - IA

K0DTJ - Brian - CA


  On 7047.5 kHz at 0030z:

K0DTJ - Brian - CA

K4TO - Dave - KY

K6PJV - Dale - CA

W0CZ - Ken - ND

AC0E - Jim - KS


Weather was cooler, except for inland California and Georgia.  I can't 
imagine either place without air conditioning.  Here I had a space 
heater on low until noon.  I went out to water the plants soon after 
sunrise only to hear an elk bugling.  I don't think it's mating season 
but it was a nice morning.  Tomorrow I'm going to hike to my north to 
see if the coyotes have left any blackberries.  Active logging nearby 
may have kept them at bay.


  Until next week 73,

 Kevin.  KD5ONS

-






No one remembers Firesign Theater?  Sigh ...

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Re: [Elecraft] KX2 Power supply

[Don Wilhelm]

Bill,

Take a look at the Pro Audio Engineering power supply.  Although it was 
designed initially for the KX3, it works very well with the KX2.  No RFI 
on the ham bands, so you can regard it as a noise-free switching supply.


73,
Don W3FPR

On 8/2/2020 8:51 PM, Bill Lederer wrote:

Friends:

I like to use my KX2 in my office with a wire out the window to a tree,
largely for listening, e.g. to ARRL code practice. I normally use the
internal battery and charge it up ever couple of weeks.

I am wondering if KX2 owners have used a DC supply to power this--short of
getting an Astron or equivalent--one that is just the right size that can
power a 12-watt radio.

Thanks.


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Re: [Elecraft] KX2 Power supply

[SAMUEL L ROWE via Elecraft]

That's what I use.
Sam KG9NG


From: elecraft-boun...@mailman.qth.net  on 
behalf of w8lv...@gmail.com 
Sent: Sunday, August 2, 2020 8:13 PM
To: Grant Youngman 
Cc: Elecraft Refl 
Subject: Re: [Elecraft] KX2 Power supply

What a great list!  Three answers before I got downstairs!

Thanks all.

On Sun, Aug 2, 2020 at 20:05 Grant Youngman  wrote:

> This is what you want …
>
> https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/
>
> Grant NQ5T
>
> > On Aug 2, 2020, at 8:51 PM, Bill Lederer  wrote:
> >
> > Friends:
> >
> > I like to use my KX2 in my office with a wire out the window to a tree,
> > largely for listening, e.g. to ARRL code practice. I normally use the
> > internal battery and charge it up ever couple of weeks.
> >
> > I am wondering if KX2 owners have used a DC supply to power this--short
> of
> > getting an Astron or equivalent--one that is just the right size that can
> > power a 12-watt radio.
> >
>
> --
--w8lvn--
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Re: [Elecraft] KX2 Power supply

[Bill Lederer]

What a great list!  Three answers before I got downstairs!

Thanks all.

On Sun, Aug 2, 2020 at 20:05 Grant Youngman  wrote:

> This is what you want …
>
> https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/
>
> Grant NQ5T
>
> > On Aug 2, 2020, at 8:51 PM, Bill Lederer  wrote:
> >
> > Friends:
> >
> > I like to use my KX2 in my office with a wire out the window to a tree,
> > largely for listening, e.g. to ARRL code practice. I normally use the
> > internal battery and charge it up ever couple of weeks.
> >
> > I am wondering if KX2 owners have used a DC supply to power this--short
> of
> > getting an Astron or equivalent--one that is just the right size that can
> > power a 12-watt radio.
> >
>
> --
--w8lvn--
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Re: [Elecraft] KX2 Power supply

[Ian Kahn]

Bill,

I don't know if this helps or not, but for Field Day, I used a deep cycle
marine battery to power my KX2. Worked like a charm.

73 de,

Ian, NV4C

On Sun, Aug 2, 2020, 8:52 PM Bill Lederer  wrote:

> Friends:
>
> I like to use my KX2 in my office with a wire out the window to a tree,
> largely for listening, e.g. to ARRL code practice. I normally use the
> internal battery and charge it up ever couple of weeks.
>
> I am wondering if KX2 owners have used a DC supply to power this--short of
> getting an Astron or equivalent--one that is just the right size that can
> power a 12-watt radio.
>
> Thanks.
>
> --
> --w8lvn--
> __
> Elecraft mailing list
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> Message delivered to nv4c@gmail.com
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Re: [Elecraft] KX2 Power supply

[Grant Youngman]

This is what you want …

https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/

Grant NQ5T

> On Aug 2, 2020, at 8:51 PM, Bill Lederer  wrote:
> 
> Friends:
> 
> I like to use my KX2 in my office with a wire out the window to a tree,
> largely for listening, e.g. to ARRL code practice. I normally use the
> internal battery and charge it up ever couple of weeks.
> 
> I am wondering if KX2 owners have used a DC supply to power this--short of
> getting an Astron or equivalent--one that is just the right size that can
> power a 12-watt radio.
> 

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Re: [Elecraft] KX2 Power supply

[rich hurd WC3T]

For an AC supply IMHO there is only one choice.

https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/


On Sun, Aug 2, 2020 at 20:51 Bill Lederer  wrote:

> Friends:
>
> I like to use my KX2 in my office with a wire out the window to a tree,
> largely for listening, e.g. to ARRL code practice. I normally use the
> internal battery and charge it up ever couple of weeks.
>
> I am wondering if KX2 owners have used a DC supply to power this--short of
> getting an Astron or equivalent--one that is just the right size that can
> power a 12-watt radio.
>
> Thanks.
>
> --
> --w8lvn--
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to r...@wc3t.us
>
-- 
72,
Rich Hurd / WC3T / DMR: 3142737
Northampton County RACES, EPA-ARRL Public Information Officer for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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[Elecraft] KX2 Power supply

[Bill Lederer]

Friends:

I like to use my KX2 in my office with a wire out the window to a tree,
largely for listening, e.g. to ARRL code practice. I normally use the
internal battery and charge it up ever couple of weeks.

I am wondering if KX2 owners have used a DC supply to power this--short of
getting an Astron or equivalent--one that is just the right size that can
power a 12-watt radio.

Thanks.

-- 
--w8lvn--
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[Elecraft] Change to the 80 Meter Net at 01:00 UTC

[Paul Van Dyke]

We thought this might happen.
Please Look for us at 3.942Not 3.940

We needed to move slightly to not catch another high power station that has
been beating up a few on receive..Sorry..
See you at 01:00

Paul - KB9AVO
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[Elecraft] NJQRP Skeeter Hunt - two weeks away!

[Larry Makoski]

We're just two weeks away!

Sunday, August 16th is the running of the 9th Annual NJQRP Skeeter Hunt. If
you haven't gotten your Skeeter Number, now is the perfect time. While a
number is not needed to participate, it certainly adds to the fun! Just
send an e-mail to w2lj...@gmail.com with your call sign, name and the state
or province that you will be operating from. You will receive an e-mail
back with your number for 2020. New numbers are issued each year, so don't
assume the number you may have had previously is the same going forward.

All the rules for this Summer Sprint can be found at
https://www.qsl.net/w2lj/

Don't forget that this year, bonus points will be given to those using home
brewed antennas during the Hunt.

During this time of the pandemic, please take all necessary precautions to
keep you and your loved ones safe. As has always been the case for the
Skeeter Hunt, operating from your backyard with a temporary antenna and an
alternative power source STILL counts as a portable operation for the
multiplier. If you feel uncomfortable with going to a public park or
setting - there's no need to! However, if you have a place in mind that you
know will be safe with minimal or no interaction with the public, then
that's fine too. In all cases, we trust you to use common sense.

Above all, have fun, stay safe and may the propagation be with us!

73 de Larry W2LJ - NJQRP Contest Manager - Skeeter # 13
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Re: [Elecraft] New Antenna Works

[Eric Norris]

I agree with Joseph.  I have been able to bust pileups on recent
dxpeditions such as VP8PJ, VP6R, and VP6D on 30m and 60m, even though I
don't have antennas on those bands.  The SWR was 10:1 on my 80/40 vertical,
and even though I was blissfully aware of the high voltages in the tuner,
and the losses in the coax, it didn't matter.  They're in the log, and my
faith in the near-magical tuning ability of the KAT50O remains
undiminished.  Dance with the girl you brung.

73 Eric WD6DBM

On Sun, Aug 2, 2020, 9:26 AM Joseph Shuman via Elecraft <
elecraft@mailman.qth.net> wrote:

> Even in my professional life I operate using a philosophy of three simple
> rules.  As for  antennas:
>
> 1.  I get a match.
> 2.  I can hear the other Ham.
> 3.  They can hear me.
>
> Simple enough, and I have made contacts on my KX2 using an umbrella frame
> on a stick.
>
> Keeping Watch-
> 
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[Elecraft] KPA-1500 Antenna Tuner "Hunting"

[Eric Norris]

I had a similar issue, and received this reply from Dick Dievendorff.   I
hope it helps you, as it did me.  Forwarded with Dick's permission.

73 Eric WD6DBM

On Wed, Nov 13, 2019 at 6:14 AM, Dick Dievendorff
 wrote:
Hi, Eric!

There is an ATU MODE SWITCH menu setting that might influence this.  With
"ALL BANDS", the ATU Mode doesn't change from band to band. If you change
the ATU Mode to BYP on one band, it should stay bypassed as you switch from
band to band.

If you have ATU MODE SWITCH set to "PER BAND" and turn the ATU to Bypass on
20 meters, then band switch to 30 meters, the ATU should return to the
last-used ATU MODE on the new (30-meter) band. That might enable the ATU on
band switch.

I did exactly what you said you did with 2.38; I set the amp to STBY, ATU
mode to BYP, turned the K3 ATU on and pressed ATU TUNE on the K3.  The
amp's SWR bar shows SWR, but the amp's ATU didn't change from its bypassed
setting and it didn't start tuning.

If the KPA1500 ATU Mode is "Bypass",  (ATU IN LED dark) it shouldn't start
tuning on its own.  If both ATU IN and BYP are lit, that means the ATU Mode
is "IN" (meaning "ATU function enabled"), but the current ATU setting is
bypassed.  Then it should change ATU settings when needed.

It's a fine point on ATU MODE bypass versus ATU MODE IN with ATU setting
currently bypassed. The ATU, when in, can set relays for a number of
inductors and capacitors. During ATU tuning it might find that "all relays
bypassed" is the best setting to choose. The ATU then uses its "bypassed"
relay settings, but the ATU MODE is still "in", meaning "ATU function
enabled".

I didn't initially show both LEDs when the ATU is both "enabled" and the
current ATU setting is "bypassed", but in Field Test it was suggested that
we indicate when the ATU is currently set to its bypassed setting. I didn't
do that in KAT500.  So if the "IN" LED is lit, the ATU is not in ATU MODE
BYP, even if the ATU BYP LED is also lit.

If the amp is in Mode STBY, and the ATU is *not* bypassed, the ATU should
retune if its "ATU HiSWR" setting is on for 30 meters. The intent is that
the KPA1500's ATU should be available at 100W, with the KPA1500 in STBY,
perhaps some don't have an ATU in their exciter and can use the amp's ATU
without using the amp's PA.

If you want the amp's ATU available on 30 meters, but don't want it
retuning on its own, turn off ATU HiSWR RETUNE for 30 meters.

Hope I haven't made this more confusing...  We're trying to satisfy a lot
of differing situations.

73 de Dick, K6KR

On Sun, Aug 2, 2020, 6:38 AM N4ZR  wrote:

> Last night in NAQP I noticed that on 80 meters my tuner would hunt
> endlessly, calling for tune power, then finishing, then asking again
> with the ATU IN LED blinking.  
>
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Re: [Elecraft] Question on K3S and Winlink Express

[Lyn Norstad]

Brett -

I'm not Bob ... but I might be able to help with your Winlink issues.

I am quite active on the various P2P modes in Winlink express and have
formed a nationwide group to become proficient in handling P2P message
traffic in the case of a "grid down" emergency (no internet, no cells, no
repeaters, no power).

You may be too close to the gateway station, especially with a vertical
antenna (NVIS might even be marginal at 5 miles).

If you'd like some other stations to try, at a greater distant and in P2P
mode, let me know.

73
Lyn, W0LEN
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of MaverickNH
Sent: Sunday, August 02, 2020 8:59 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Question on K3S and Winlink Express

Any luck with that Bob? I've been using Winlink on Packet VHF from a Kenwood
TM-D710G but wanted to try  80m with my K3S. I'm to the point where Ardop is
trying to connect to a local gateway about 5mi away from a 43ft vertical
with remote ATU at base at 50W. No connection yet...

I'm able to RX/TX on WSJT-X so figure my configuration should work, but
perhaps I need to tweak it for Ardop?

BRET/N4SRN



--
Sent from: http://elecraft.365791.n2.nabble.com/
__
 

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Re: [Elecraft] New Antenna Works

[rich hurd WC3T]

K2MIJ is a big fan of - shall we say - unorthodox antennas.  His claim to
fame, as it were, is the “Limbo Stick” cut for various bands.  You can find
him on almost any Internet search.  He’s also set up using folding aluminum
chairs as radiators and tape measures as counterpoises.   Quite ingenious
use of conductive materials.

On Sun, Aug 2, 2020 at 12:26 Joseph Shuman via Elecraft <
elecraft@mailman.qth.net> wrote:

> Even in my professional life I operate using a philosophy of three simple
> rules.  As for  antennas:
>
> 1.  I get a match.
> 2.  I can hear the other Ham.
> 3.  They can hear me.
>
> Simple enough, and I have made contacts on my KX2 using an umbrella frame
> on a stick.
>
> Keeping Watch-
> shu
>
> Joe Shuman, KE8KJZ
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>
-- 
72,
Rich Hurd / WC3T / DMR: 3142737
Northampton County RACES, EPA-ARRL Public Information Officer for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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Re: [Elecraft] New Antenna Works

[Joseph Shuman via Elecraft]

Even in my professional life I operate using a philosophy of three simple 
rules.  As for  antennas:

1.  I get a match.
2.  I can hear the other Ham.
3.  They can hear me.

Simple enough, and I have made contacts on my KX2 using an umbrella frame on a 
stick.

Keeping Watch-
shu

Joe Shuman, KE8KJZ
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Re: [Elecraft] K4 feature suggestion

[Rick Tavan]

How about using the footswitch to interrupt the MIC line before it gets to
the radio, either in-line or through a relay?

/Rick N6XI

On Tue, Jul 28, 2020 at 6:59 PM John Simmons 
wrote:

> Stolen from Facebook:
> Programmable PTT so that when using VOX on SSB, the PTT functions as a
> mute (cough) switch
>
> --
> 73,
> -de John NI0K
> https://www.qrz.com/db/NI0K
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-- 
--

Rick Tavan
Truckee and Saratoga, CA
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Re: [Elecraft] New antenna works!

[Gwen Patton]

One of my favorite portable antennas is a homebrewed link dipole for 40,
30, and 20m. I tuned it very carefully for the middle of the CW portion of
each band, but it's still fairly well tuned in the SSB portions of 40 and
20. I still use a tuner with it for phone, though, just to keep from
stressing the radio. If I'm using my KX3, the internal tuner works just
fine. If the radio doesn't have a builtin tuner, I have an Elecraft T1 that
I use. If it's by some weird quirk of fate a radio that puts out too little
for the T1 to register (a couple of my QRPp radios are like that), I pull
out the ZM-2, and everything is cream cheese. (Cream cheese? Yes.
https://youtu.be/c0m5wJRGHEQ)

I still have a project hanging fire to try a fan dipole using horse farm
electric fence webbing. It's poly webbing about 2" wide with 15
stainless-steel wires run lengthwise through the weave. I know they'll
interact, but maybe with very careful trimming I can get it all to tune.
With 3 bands, or maybe just 2, I'll have multiple wires for each band, and
if I tune THOSE to a spread frequency set, maybe I can get a very wide
bandwidth AND multiple bands on a single dipole strap. Or perhaps a
vertical with counterpoise radials? Not sure which I want to experiment
with. But I've got a lot of that strap (it was fairly cheap) and there's a
nice clamp-on connector that connects all of the wires at once to a single
connection for the power connections in its normal usage, but will also
serve as a good feedpoint. Worth a try. If nothing else, I can rule out a
multi-band fan and just go with a single band and get REALLY good
bandwidth. (A company already sells monoband dipoles made of similar strap,
but they charge through the NOSE.)

But a link dipole is my favorite multi-band antenna, at least for portable
use, where connecting and disconnecting the links isn't a big deal. It'd be
a nightmare for a fixed base antenna...you'd have to use some kind of
high-voltage, high-current relay, then you'd have the control wires
interfering with the tuning...ack. Maybe SteppIR can try it...but then, if
I was going to get a SteppIR, I'd get the new vertical that extends or
retracts a tape up and down a PVC column to tune for each band, sort of
like the "measuring tape" version of a screwdriver antenna.

I still intend to make an automatic clothesline antenna using a stepper
motor and a microcontroller at some point. I'll probably crib some of the
control circuits from Jack's new book when it comes out!

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Sun, Aug 2, 2020 at 9:24 AM CUTTER DAVID via Elecraft <
elecraft@mailman.qth.net> wrote:

> Jim and Dave
>
> Let's start with Kevin KD5ONS and his 40m vertical.  A great monobander
> and I'm sure it performs very well on that band.  He tells us it works
> great on most other HF bands as well, using the wonderful Elecraft matching
> ability.  Had he stayed with that one antenna on that one band there would
> be nothing more to say, but he desires a multi-band antenna and he now
> thinks he's got one, thanks to Elecraft.  However, as Jim points out, the
> matching unit doesn't make his antenna work any better, it hides the losses
> to make us feel better.  Kevin is no doubt blissfully unaware of the loss
> in the feeder and in the matching unit because it just works for him and
> he's a happy customer.  He is also unaware of the high voltages appearing
> in the matching unit.  I'm not sure how much power he's running but those
> conditions could lead to failure and I want to advise him of the risk.
>
> This is where the phrase "it can be undesirable to have" comes in and the
> follow-on advice to make it non-resonant on any band to avoid potentially
> damaging conditions. I'm not saying anything new, I'm sure I read about
> this when solid state RF amplifiers first came on the scene.
>
> I don't want to make assumptions about Kevin, but I guess he might not yet
> be aware and ready to evaluate the vswr on his feeder for the other bands
> and work out the transformation of voltages back at the rig.
>
> Perhaps we should take the time and ask him:
> Kevin, what length and type of coax are you using to feed your 40m
> vertical? What power are you running? If he answers, I'm sure you will be
> able to help him do math.
>
> The great thing about this net is there are so many good folks willing to
> help and I'm glad of the chance to raise this old subject.
>
> I suspect for most of us, we don't have the space for mono-banders and
> multi-band antennas are the only practical solution and I'm very grateful
> for the matching ability of my Elecraft rig, but I'm cautious, I wouldn't
> run a mono-band antenna on another band without checking with my antenna
> analyser first, but that's another amazing story.
>
> David G3UNA
>
>
>
>
> > On 01 August 2020 at 23:09 Jim Brown  wrote:
> >
> >
> > On 8/1/2020 12:12 PM, David Gilbert wrote:
> > > My gripe with the original post from G3UNA was simply his
> generalization
> > > that 

Re: [Elecraft] KPA-1500 Antenna Tuner "Hunting"

[David Bunte]

Pete -

I don't have a KPA1500, but do have a KPA500 with a KAT500... and the first
thing that comes to mind is manual vs auto on the tuner... IF they can be
selected on the '1500. With the KAT500 after the tuner has found a matching
solution for each band segment, I then put the tuner in manual,  and when I
change bands the tuner selects the correct tuning solution and it does not
seek a new one while I am transmitting. I know that was the advice for the
KAT500 from the time I first got mine years ago. I assume that is valid
advice for the tuner in the KPA1500, assuming that is an option.

Very 73 de Dave - K9FN

On Sun, Aug 2, 2020 at 9:39 AM N4ZR  wrote:

> Last night in NAQP I noticed that on 80 meters my tuner would hunt
> endlessly, calling for tune power, then finishing, then asking again
> with the ATU IN LED blinking.  I retrained the memory on each relevant
> band segment, and that stopped the hunting, but I noticed that instead
> of QSYing smoothly from one segment to another when I would pounce on a
> CQer, it would go through a tune cycle before settling down in normal
> operation.  I don't think this is normal, but don't know what to do.
> Should I erase my 80M segment memories and reload them?
>
> Oh BTW, I was not running the amp last night - just using the tuner.
> I'm a good boy.
>
> --
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at , now
> spotting RTTY activity worldwide.
> For spots, please use your favorite
> "retail" DX cluster.
>
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Re: [Elecraft] Question on K3S and Winlink Express

[MaverickNH]

Any luck with that Bob? I've been using Winlink on Packet VHF from a Kenwood
TM-D710G but wanted to try  80m with my K3S. I'm to the point where Ardop is
trying to connect to a local gateway about 5mi away from a 43ft vertical
with remote ATU at base at 50W. No connection yet...

I'm able to RX/TX on WSJT-X so figure my configuration should work, but
perhaps I need to tweak it for Ardop?

BRET/N4SRN



--
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[Elecraft] KPA-1500 Antenna Tuner "Hunting"

[N4ZR]

Last night in NAQP I noticed that on 80 meters my tuner would hunt 
endlessly, calling for tune power, then finishing, then asking again 
with the ATU IN LED blinking.  I retrained the memory on each relevant 
band segment, and that stopped the hunting, but I noticed that instead 
of QSYing smoothly from one segment to another when I would pounce on a 
CQer, it would go through a tune cycle before settling down in normal 
operation.  I don't think this is normal, but don't know what to do.  
Should I erase my 80M segment memories and reload them?


Oh BTW, I was not running the amp last night - just using the tuner.  
I'm a good boy.


--
73, Pete N4ZR
Check out the Reverse Beacon Network
at , now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

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Re: [Elecraft] New antenna works!

[CUTTER DAVID via Elecraft]

Jim and Dave

Let's start with Kevin KD5ONS and his 40m vertical.  A great monobander and I'm 
sure it performs very well on that band.  He tells us it works great on most 
other HF bands as well, using the wonderful Elecraft matching ability.  Had he 
stayed with that one antenna on that one band there would be nothing more to 
say, but he desires a multi-band antenna and he now thinks he's got one, thanks 
to Elecraft.  However, as Jim points out, the matching unit doesn't make his 
antenna work any better, it hides the losses to make us feel better.  Kevin is 
no doubt blissfully unaware of the loss in the feeder and in the matching unit 
because it just works for him and he's a happy customer.  He is also unaware of 
the high voltages appearing in the matching unit.  I'm not sure how much power 
he's running but those conditions could lead to failure and I want to advise 
him of the risk.  

This is where the phrase "it can be undesirable to have" comes in and the 
follow-on advice to make it non-resonant on any band to avoid potentially 
damaging conditions. I'm not saying anything new, I'm sure I read about this 
when solid state RF amplifiers first came on the scene.

I don't want to make assumptions about Kevin, but I guess he might not yet be 
aware and ready to evaluate the vswr on his feeder for the other bands and work 
out the transformation of voltages back at the rig.

Perhaps we should take the time and ask him: 
Kevin, what length and type of coax are you using to feed your 40m vertical? 
What power are you running? If he answers, I'm sure you will be able to help 
him do math.

The great thing about this net is there are so many good folks willing to help 
and I'm glad of the chance to raise this old subject. 

I suspect for most of us, we don't have the space for mono-banders and 
multi-band antennas are the only practical solution and I'm very grateful for 
the matching ability of my Elecraft rig, but I'm cautious, I wouldn't run a 
mono-band antenna on another band without checking with my antenna analyser 
first, but that's another amazing story.

David G3UNA


 

> On 01 August 2020 at 23:09 Jim Brown  wrote:
> 
> 
> On 8/1/2020 12:12 PM, David Gilbert wrote:
> > My gripe with the original post from G3UNA was simply his generalization 
> > that resonant antennas are bad and that non-resonant antennas are good.
> 
> Same here. Most antennas that we can install are some form of 
> compromise. Higher is better. One size fits all solutions generally 
> don't perform as well as antennas optimized for a band or given 
> application. Antenna tuners do NOT make an antenna work better, they 
> simply allow the transmitter to put power into the feedline, and by 
> optimizing the load that the transmitter sees, they reduce the 
> distortion that the amplifier produces. Remember -- SWR is NOT a measure 
> of antenna performance. Louder at the other guy's radio IS. Less RX 
> noise IS.
> 
> What we all would do if we could is often very different from what we 
> CAN do. What we would rig to operate from a park bench or on a 
> mountaintop is usually very different from what we would do at home.
> 
> 73, Jim K9YC
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Re: [Elecraft] Elecraft CW Net Announcement

[Rich NE1EE]

On 2020-08-01 19:39:-0700, kevinr wrote:
>*MARVIN:*
>I don�t think they�re very clever. There�s only one person as intelligent as 
>me within thirteen parsecs of here and that�s me. 

"I don�t think they�re very clever. There�s only one person as intelligent as I 
within thirteen parsecs of here, and that�s I."

Of course, I don't know what planet and country from which he hails, so perhaps 
it was correct, after all.

I thoroughly enjoyed all Adams' books...at least the ones I recall ;-)

(bands and times noted)


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Re: [Elecraft] New antenna works!

[JP Douglas]

I prefer to use resonant antennas, either single or multi band and not use a 
tuner, however, I have encountered that even resonant antennas are not always 
so due to ground conditions,
Case in point, two weeks ago we hiked to the summit of Sentinel Mountain in 
Baxter State Park. I carried my KX3, foldable 42 watt solar panel, 6amp/hr 
lithium battery, coax and a 40 meter resonant slinky antenna which I had 
previously tested at my QTH in Mid Coast, ME. Antenna would not resonate due to 
the granite terrain. Luckily I brought with me a mAT-10 qrp tuner I had just 
purchased and was able to get on the air just fine. Tried to post pix earlier 
but file was too big for the reflector. I’ll gladly send it to antone that 
wants to see it.
Stay Free everyone!
73 de Jose Douglas KB1TCD

Sent from my iPad

> On Aug 1, 2020, at 3:12 PM, David Gilbert  wrote:
> 
> 
> For what it may be worth, I'm a staunch supporter of antenna tuners myself.  
> I previously used one for many years to get 5 band operation out of two 
> vertical pieces of tubing on my roof back when I lived in Scottsdale, and I 
> just built a high power monster to get full coverage of the low bands with my 
> current antennas here in the boonies.  I'm definitely not one of those who 
> think that antennas need to be resonant to be any good.
> 
> Antenna tuners can indeed be lossy, but with the right components they don't 
> have to be, and if they are lossy enough to significantly affect your signal 
> most of them will burn up first.  TLW, the free app that comes with the ARRL 
> Antenna Book, is quite informative on that score.
> 
> My gripe with the original post from G3UNA was simply his generalization that 
> resonant antennas are bad and that non-resonant antennas are good.
> 
> 73,
> Dave   AB7E
> 
> 
> 
>> On 8/1/2020 11:21 AM, Al Lorona wrote:
>> I'm glad Dave added that to the end of his message, because each time the 
>> topic of multiband antennas comes up, we are told, "That's too lofty a goal 
>> for one antenna. Just put up a resonant antenna and all your troubles will 
>> be gone." All except for the problem of operating on all bands without 
>> having to put up 9 resonant HF antennas, that is. I think we do a disservice 
>> to the hundreds of hams reading this by discouraging them from multiband 
>> operation just because we deem it too "noisy" or "lossy" or "inconvenient" 
>> or whatever.
>> 
>> If a man or woman, knowing full well the consequences of his or her actions, 
>> chooses to utilize a single, horizontal antenna of no particular length, 
>> ultra-low-loss feedline long enough to reach the shack, and a low-loss 
>> homebrew or commercial manual antenna tuner to operate on all bands, then 
>> who are we to tell him or her that they shouldn't? To do so has always 
>> struck me as presumptuous.
>> 
>> Incidentally, can we do two things? Can we all get over the gross assumption 
>> that we continue to make, that when someone mentions feeding an antenna with 
>> "balanced line" that must mean Wireman #553? There are better alternatives. 
>> If our beef is with Wireman #553, then let's be on with it without 
>> condemning *all* forms of balanced line.
>> 
>> Secondly, antenna tuners are not necessarily lossier than the aggregate of 
>> cables, connectors, wattmeters, filters, switches, elbows, lightning 
>> arrestors, baluns, autotuners, , , that many folks use. Everything has 
>> loss, but in effect we trade that loss for some other valuable function... 
>> like being able to QSY anwhere, easily. To give you a data point, on 12 
>> meters my station has a max loss (from transmitter to the antenna feedpoint) 
>> of 1.6 dB. I'll put that worst-case number up against anybody's long run of 
>> coax through all the other junk from their transmitter to their antenna.
>> 
>> Folks, you should not feel inferior for having chosen to operate on many 
>> bands with an antenna tuner. I think the case could be made that the 
>> *resonant* antenna is the compromise, giving up all band operation for some 
>> other desired function. And sadly, sometimes that compromise is made just so 
>> they can say that they're not using a tuner!
>> 
>> Al  W6LX
>> 
>> 
> Multi-band antennas are fine as long as you recognize that they are a
> compromise.
> Dave   AB7E
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[Elecraft] looking for a 1.04c MCU for K2

[Hubert ROTH via Elecraft]

Dear allMine in my K2 is faulty, If somebody has an 1.04c MCU (after upgrade) 
for sale would be fine, would avoid having to make upgrade. 
73,s Hubert F6DUK
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Re: [Elecraft] Elecraft CW Net Announcement

[Victor Rosenthal 4X6GP]

Maybe I'll invest 15 minutes of sleep time at 0030z tomorrow morning 
(0330 local). Who knows? I've never been able to hear the net, but maybe 
this time...


73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 02/08/2020 5:39, kevinr wrote:

Good Evening,

     I spent the last few days listening on twenty and forty meters. The 
North American QSO Party is a good way to test my new antenna.  I have 
found the forty meter band picks up around 0030z.  The QSB flattens and 
the signals are easier to dig out. There is a noticeable difference in 
noise level between the inverted-V and the vertical.  After z I was 
able to copy MT, IL, MN, ID, KY, NY, NJ, NM, CT, SD, CO, FL, OR, AZ, OK, 
TX, KS, LA, NV, UT, CA, and wherever VK5MAV is located this week. 
Hopefully I can do as well tomorrow :)


   I will start the second net at 0030z since there was such a 
noticeable difference in propagation after 0015.  I will switch between 
the inverted-V and the vertical often.  As the days shorten I'll move 
the forty meter net back to z.  Until then I will see how we do at 
0030z instead.


    More berries are getting ripe.  I'm looking for a good spot for 
blackberries.  Maybe in the clear cut to the north.  Salmon berries were 
not too good this year.  Neither were the thimbleberries.  The wild 
straw berries were good though.  The fire danger is high right now 
because we have not had rain in over a week.  Looks like we may get some 
fog tomorrow night.  That will help the blackberries.


    There are two sunspots and the SFU is up to 72.  But the auroral 
oval is rather weak.  There was little QSB on anyone I heard on 20 or 40 
meters over the last few days.  Some was present as 40 woke up but then 
it disappeared.  Not much band noise either.  It did not sound like 
there were any thunderstorms.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
   7047 kHz at 0030z Monday (5:30 PM PDT Sunday)

    73,
   Kevin. KD5ONS


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