Date   

Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/24/2020 20:00-21:00 #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 24 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Random Wire Tuning - Take 2

Dave W0DCX
 

After reviewing the previous thread on this topic, I felt somewhat uneasy about my contribution to the discussion.  I felt as if my reporting became somewhat desultory.  So, I have done some more analysis and would like to share it along with some additional context.  Keep in mind, I am trying to optimize a wire antenna for DIRECT use with my KX2 while NOT using my 9:1 unun.  When I used the unun I can get just about any length wire to tune okay.  So I am trying to create a minimal operating system here.

The original study under discussion used a 72-foot wire.  Why did I select this length?  For one thing, according to the random wire antenna links, one of which was shared by another contributor, 71-72 feet is suggested as one of the preferred lengths in order to avoid 1/2 wavelength multiples on any common HF band.  1/2 wave multiples present high impedances to the transceiver.  The second reason I selected 72 feet was that it is exactly the distance from my transceiver to the high branch of a tree in my backyard where I have a nylon haul line installed.  This length of antenna wire allows me to get the distal end of the antenna as high as possible (33 feet), all the way up to the branch.

Well, 72 feet worked really well on 30 meters, and if I was going to work just 30 meters this is the antenna I would haul up the tree.  Great SWR, great tuning, and as high as possible.  BUT there were tuning issues for me on other important bands like 20 meters and 40 meters.  So today I tried something a little different.  I decided to trade-off the maximum antenna height for a more useful antenna length, one that might tune better on more bands.  I selected a 50-foot wire which was able to get the distal end of the wire up to a height of about 28 feet.  I used my 29-foot counterpoise wire in conjunction with this antenna.

Below is a Table showing my results from NanoVNA measurements and actual KX2 ATU tuning results.  The bottom line is that the 50-foot wire was quite workable on all the bands I tested - EXCEPT FOR 30 METERS where my 72-foot wire excelled.  I can live with that.  Also, except for 10 meters where reactance was slightly inductive, reactances all on other bands were capacitive.  The big caveat is that I do not fully understand or trust what the NanoVNA is telling me.  But I am presenting the numbers as raw data and also some resulting impedance calculations I performed.  I just want to put the numbers out there and see if they make sense to anyone else.  Perhaps the VNA is not functioning accurately on all frequencies.  Perhaps I still not yet know how to use it properly.  Also, I understand that using different lengths of counterpoise or changing the counterpoise positioning relative to ground and the antenna wire may have impacts on the results.

Well, here is my 50-foot wire antenna Table from this morning.  (Excel document as an attachment, too).  While futzing with things I made two QSOs on 40 meters - Florida and Georgia.  Your mileage may vary.



73,
Dave W0DCX


Re: FW: W4OP

John Nicholas
 

Link goes to a ISP in SW Colorado.

73

de KEoZUW  -  John

On Jun 24, 2020, at 6:09 AM, Dean LaClair <dean.k2ww@...> wrote:

Parinc1 {@} frontier.net

I'm sure Dale can put you on the right track

73
Dean
K2WW


Re: Field Day Operation remotely as a group

Tony Scandurra K4QE
 

No.  Only contesting clubs participating in contests like the ARRL DX Contest need to be on the ARRL Contest Club List.  Despite the fact that clubs are listed in the Field Day listings, there is no official “club competition” in Field Day.  Why?  Because Field Day is not a contest!

On Jun 24, 2020, at 9:42 AM, Bill Lamm <kd9mdl@...> wrote:

Dosen't the club need to register for field day and state the club name for field day thus defining the exact name to be used by us from our home locations?


Re: Field Day Operation remotely as a group

J.K. Wright
 

Only if you are able to operate as a club with a club call. The variant for this year only is that members can operate independently and ARRL will tabulate results by club name. In non virus years they don't do this.


On Wed, Jun 24, 2020, 9:42 AM Bill Lamm <kd9mdl@...> wrote:
Dosen't the club need to register for field day and state the club name for field day thus defining the exact name to be used by us from our home locations?


Re: Field Day Operation remotely as a group

Bill Lamm
 

Dosen't the club need to register for field day and state the club name for field day thus defining the exact name to be used by us from our home locations?


Re: Field Day Operation remotely as a group

Tony Scandurra K4QE
 

The intent of the statement in the FAQ is to avoid club names where there is no uniqueness.

For instance, there are two clubs in North Carolina with the common acronym “RARS”.  Obviously, they need to make them unique by using:

Raleigh ARS and Rowan ARS

That is what is meant by “avoiding”.

On Jun 24, 2020, at 8:21 AM, J.K. Wright <wrightjk@...> wrote:

I believe avoiding = no

However, it is a free country..you can do however you like and live with consequences.

On Wed, Jun 24, 2020, 8:13 AM Tony Scandurra K4QE <k4qe@...> wrote:
I am amazed how many people re-interpret this detail...

It does not say “without” or “no” abbreviations or acronyms.

The quote directly from the FAQ says:

"all club participants must enter the club’s official name exactly the same, avoiding abbreviations or acronyms.

Consider this:

Podunk Amateur Radio Club and Timbuktu Amateur Radio Club

 - or -

Podunk ARC and Timbuktu ARC

The only unique part of the names is “Podunk” and “Timbuktu”.  Therefore, it makes no sense not to use an acronym in the common part of the name.  In fact, abbreviating “Amateur Radio Club” using ARC greatly reduces the chance of a spelling error (think of how many times have you seen people misspell “amateur” as “amatuer”?).  It is also easier to see the difference between the two when the abbreviation for the common part is used.

73, Tony K4QE

On Jun 24, 2020, at 6:44 AM, John Kirby <n3aaz_qrp_1@...> wrote:


Field Day 2020 ARRL important log detail

http://www.arrl.org/news/arrl-contest-program-issues-field-day-2020-faq

One of the most important detail added in these FAQ’s is that ...

...your club affiliation needs to be entered 
without abbreviations or acronyms...

 To be included in the club aggregate score each club name submitted must be identical in spelling and case.

72 73
John
N3AAZ





Re: Field Day Operation remotely as a group

J.K. Wright
 

I believe avoiding = no

However, it is a free country..you can do however you like and live with consequences.

On Wed, Jun 24, 2020, 8:13 AM Tony Scandurra K4QE <k4qe@...> wrote:
I am amazed how many people re-interpret this detail...

It does not say “without” or “no” abbreviations or acronyms.

The quote directly from the FAQ says:

"all club participants must enter the club’s official name exactly the same, avoiding abbreviations or acronyms.

Consider this:

Podunk Amateur Radio Club and Timbuktu Amateur Radio Club

 - or -

Podunk ARC and Timbuktu ARC

The only unique part of the names is “Podunk” and “Timbuktu”.  Therefore, it makes no sense not to use an acronym in the common part of the name.  In fact, abbreviating “Amateur Radio Club” using ARC greatly reduces the chance of a spelling error (think of how many times have you seen people misspell “amateur” as “amatuer”?).  It is also easier to see the difference between the two when the abbreviation for the common part is used.

73, Tony K4QE

On Jun 24, 2020, at 6:44 AM, John Kirby <n3aaz_qrp_1@...> wrote:


Field Day 2020 ARRL important log detail

http://www.arrl.org/news/arrl-contest-program-issues-field-day-2020-faq

One of the most important detail added in these FAQ’s is that ...

...your club affiliation needs to be entered
without abbreviations or acronyms...

 To be included in the club aggregate score each club name submitted must be identical in spelling and case.

72 73
John
N3AAZ


Re: Field Day Operation remotely as a group

Tony Scandurra K4QE
 

I am amazed how many people re-interpret this detail...

It does not say “without” or “no” abbreviations or acronyms.

The quote directly from the FAQ says:

"all club participants must enter the club’s official name exactly the same, avoiding abbreviations or acronyms.

Consider this:

Podunk Amateur Radio Club and Timbuktu Amateur Radio Club

 - or -

Podunk ARC and Timbuktu ARC

The only unique part of the names is “Podunk” and “Timbuktu”.  Therefore, it makes no sense not to use an acronym in the common part of the name.  In fact, abbreviating “Amateur Radio Club” using ARC greatly reduces the chance of a spelling error (think of how many times have you seen people misspell “amateur” as “amatuer”?).  It is also easier to see the difference between the two when the abbreviation for the common part is used.

73, Tony K4QE

On Jun 24, 2020, at 6:44 AM, John Kirby <n3aaz_qrp_1@...> wrote:


Field Day 2020 ARRL important log detail

http://www.arrl.org/news/arrl-contest-program-issues-field-day-2020-faq

One of the most important detail added in these FAQ’s is that ...

...your club affiliation needs to be entered
without abbreviations or acronyms...

 To be included in the club aggregate score each club name submitted must be identical in spelling and case.

72 73
John
N3AAZ


Re: FW: W4OP

Dean LaClair
 

Parinc1 {@} frontier.net

I'm sure Dale can put you on the right track

73
Dean
K2WW

On Wed, Jun 24, 2020, 02:48 AG1P Ron <ag1p@...> wrote:

This came into the Moderator email address.  If anyone can help this person, please contact him at the email address below.

72 - Ron - AG1P

4SQRP Volunteer Webmaster

 

From: RTSA [mailto:memarcecker@...]
Sent: Tuesday, June 23, 2020 11:29 PM
To: main+owner@4SQRP.groups.io
Subject: W4OP

 

I'm KE2BP and I'm looking for a W4OP loop or parts for one. I can't get them from Par electronics, lnr precision, or vibroplex. I'm looking to get this second hand. My email is memarcecker@... is any way you can post this in your classifieds for me I would be grateful.


Re: Field Day Operation remotely as a group

John Kirby
 


Field Day 2020 ARRL important log detail

http://www.arrl.org/news/arrl-contest-program-issues-field-day-2020-faq

One of the most important detail added in these FAQ’s is that ...

...your club affiliation needs to be entered
without abbreviations or acronyms...

 To be included in the club aggregate score each club name submitted must be identical in spelling and case.

72 73
John
N3AAZ


FW: W4OP

AG1P Ron
 

This came into the Moderator email address.  If anyone can help this person, please contact him at the email address below.

72 - Ron - AG1P

4SQRP Volunteer Webmaster

 

From: RTSA [mailto:memarcecker@...]
Sent: Tuesday, June 23, 2020 11:29 PM
To: main+owner@4SQRP.groups.io
Subject: W4OP

 

I'm KE2BP and I'm looking for a W4OP loop or parts for one. I can't get them from Par electronics, lnr precision, or vibroplex. I'm looking to get this second hand. My email is memarcecker@... is any way you can post this in your classifieds for me I would be grateful.


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/24/2020 20:00-21:00 #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 24 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Re: The mysteries of tuning a random wire

Donald Sanders
 

great idea to write an article. I'm in.
Dr. Don W4BWS

God Bless All

Ham Radio does not make the world go round.
Ham Radio is what makes the ride worthwhile.


On Mon, Jun 22, 2020 at 4:36 PM Mike Malone <kd5kxf@...> wrote:
To all of the participants in this thread, first... thank you!  Great information.  Now second, can I print this in the QRP Quarterly?  I would need you all to give me an okay to do so.  I would edit it into an article and credit you all with it and probably present it as the thread it is.  I found it fascinating and informative, after all... we are all stuck at home and have wire and tuners.  This is timely for those with time on their hands.
Mike KD5KXF
QRP Arci Qrp Quarterly Editor


On Fri, Jun 19, 2020 at 10:20 AM Dave W0DCX <cwqrp73@...> wrote:
I want to thank everyone for their helpful and educational input.  I am going to study the resources provided and do some further experimentation with various random wire configurations.  .  If I discover anything of interest I will let you all know.  Best 73s!
Dave W0DCX


Re: The mysteries of tuning a random wire

Mike Malone
 

John, I agree.  I need to hear from Jim and the others in this thread that haven't emailed me first.  Jim N5IB has been a guiding influence on antennas for me, ever since I heard a presentation he gave.  Good stuff gentlemen.

Mike KD5KXF


On Tue, Jun 23, 2020 at 11:17 AM John Nicholas <stnick@...> wrote:
As a new Ham,  got my Tech and General Ticket Mar 14,  this has been one of the best things to read and re read that I have seen since I started studying for the exams in January.  I felt it impacted more then just tuning a random wire.

Thanks,  getting in an article form, even cleaned up email exchange would be great.

de KEoZUW John

On Jun 22, 2020, at 3:35 PM, Mike Malone <kd5kxf@...> wrote:

To all of the participants in this thread, first... thank you!  Great information.  Now second, can I print this in the QRP Quarterly?  I would need you all to give me an okay to do so.  I would edit it into an article and credit you all with it and probably present it as the thread it is.  I found it fascinating and informative, after all... we are all stuck at home and have wire and tuners.  This is timely for those with time on their hands.


Re: The mysteries of tuning a random wire

John Nicholas
 

As a new Ham,  got my Tech and General Ticket Mar 14,  this has been one of the best things to read and re read that I have seen since I started studying for the exams in January.  I felt it impacted more then just tuning a random wire.

Thanks,  getting in an article form, even cleaned up email exchange would be great.

de KEoZUW John

On Jun 22, 2020, at 3:35 PM, Mike Malone <kd5kxf@...> wrote:

To all of the participants in this thread, first... thank you!  Great information.  Now second, can I print this in the QRP Quarterly?  I would need you all to give me an okay to do so.  I would edit it into an article and credit you all with it and probably present it as the thread it is.  I found it fascinating and informative, after all... we are all stuck at home and have wire and tuners.  This is timely for those with time on their hands.


Re: The mysteries of tuning a random wire

J.K. Wright
 

A small 49:1 transformer solves a lot of.  Most any mismatched impedance divided by 49 can be easily tuned.


On Tue, Jun 23, 2020, 9:51 AM Dave W0DCX <cwqrp73@...> wrote:
Mike,
Okay from me.  I only wish I could have arrived at a definitive answer to my original question.  Even so, I learned a lot from the discussion and maybe others will also.  I plan to continue trying to understand and optimize my random wires in this fashion - it is fun and challenging.  The final result may be that there are too many variables and influences on measurements and therefore an empirical approach is best - i.e., just try stuff until something seems to work.
Dave W0DCX


Re: The mysteries of tuning a random wire

Dave W0DCX
 

Mike,
Okay from me.  I only wish I could have arrived at a definitive answer to my original question.  Even so, I learned a lot from the discussion and maybe others will also.  I plan to continue trying to understand and optimize my random wires in this fashion - it is fun and challenging.  The final result may be that there are too many variables and influences on measurements and therefore an empirical approach is best - i.e., just try stuff until something seems to work.
Dave W0DCX


Re: Field Day Operation remotely as a group

Johnny AC0BQ
 

Hello Ed
I don’t see a problem with the 4SQRP,
No spaces and all Caps.
Easy to remember and type.
I’m good for it.
72
Johnny ACØBQ 

On Mon, Jun 22, 2020 at 3:09 PM Ed Meyer, WG5F <wg5f@...> wrote:
I did finally find a reference to abbreviations and acronyms in a FAQ: 
Each participant will submit his or her own independent entry under his or her call sign. ARRL will calculate the aggregate score based upon the club name entered on the official Field Day entry form via the web applet (preferred method) or on the paper Field Day entry form. In order for results to be tabulated correctly, all club participants must enter the club’s official name exactly the same, avoiding abbreviations or acronyms. This is important!

I think the chances for getting Four States QRP Group entered correctly by each participant is less likely than 4SQRP.
But - i'll bow to those that will be participating that have a voice for how they'd prefer to specify the club.
(I know my old club, the Midland Amateur Radio Club, will be using "Midland ARC")
73,
-Ed, WG5F-

--
Check out the 4SQRP website at 4sqrp.com


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/24/2020 20:00-21:00 #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 24 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.