[Alexandria Radio Club Reflector] FW: DIY for Near Vertical Incident Skywaves (NVIS) Antennas Presentation
R C
clancy.bob at gmail.com
Sat Sep 9 10:46:28 EDT 2023
I will stop by. I have been busy with work but I have a linked dipole built
for NVIS if we have time to test it. I will arrive at the park around 11:30
AM today.
Bob KQ4ILQ
On Fri, Sep 8, 2023 at 11:48 PM <don.ki4d at gmail.com> wrote:
> The NVIS antenna testing will take place on Saturday, September 9th at
> Jefferson Manor Park, see link below for location. On-air WSPR work will
> start at 9:00 a.m., but antenna installations will start as early as 7:30
> a.m. Mainly because of work and family obligations of key participants,
> scheduling this event has been very challenging.
>
> On-air WSPR transmissions will take place on 40 meters at 7.0386 MHz using
> 5 NVIS antennas, sequentially. We will be looking to map transmitted WSPR
> signals across the state of Virginia to compile the results for analysis of
> antenna performances. See attachment for methodology.
>
> Everyone is welcome.
>
> Jefferson Manor Park is located here:
> https://www.google.com/maps/place/Jefferson+Manor+Park/@38.792307,-77.0852828,17z/data=!3m1!4b1!4m6!3m5!1s0x89b7b19430050a15:0xe191f9094e00c427!8m2!3d38.792307!4d-77.0827079!16s%2Fg%2F1tdpsk3g?entry=ttu
>
> 73
>
> Don, KI4D
>
>
>
>
>
> *From:* Todd Taylor <todd.taylor83 at gmail.com>
> *Sent:* Sunday, August 6, 2023 10:41 AM
> *To:* R C <clancy.bob at gmail.com>
> *Cc:* Alex Lammers <alexlammers161 at gmail.com>; Andrew Davnie-Easton <
> ki4thf at gmail.com>; Bjorn Jernudd <jernudd at gmail.com>; Don (KI4D) <
> don.ki4d at gmail.com>; Ed Ferguson <ed at edsfx.com>; Gary Sessums <
> gary at sessums.org>; James Stone <jbstonecfi at yahoo.com>; James Wilson <
> telegraphjim at gmail.com>; Joe Porcelli <porcej at gmail.com>; Matthew Johnson
> <Mjohnson at paradigmcos.com>; Ryan Stinebiser <ryan.stinebiser at gmail.com>;
> scott mcclung <scott.mcclung.308 at gmail.com>; walkerl <
> walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> W4EDF -7dB into KO4IJH at FM18kt.
>
>
>
>
>
>
>
> On Sun, Aug 6, 2023 at 08:24 R C <clancy.bob at gmail.com> wrote:
>
> I wasn’t able to make progress yesterday with the EFHW. I hope you
> otherwise have a productive morning at the park.
>
>
>
> Bob
>
>
>
> On Sun, Aug 6, 2023 at 8:10 AM Ryan Stinebiser <ryan.stinebiser at gmail.com>
> wrote:
>
> I'm at the park. I see Don's truck, but no Don.
>
>
>
> On Sun, Aug 6, 2023, 6:57 AM Todd Taylor <todd.taylor83 at gmail.com> wrote:
>
> I won’t be able to join, but if you all are planning to use WSPR I can set
> up my station to act as spotter.
>
>
>
> On Sat, Aug 5, 2023 at 13:19 <don.ki4d at gmail.com> wrote:
>
> OK, 8:00 a.m. it is.
>
>
>
> 73
>
> Don
>
>
>
> *From:* Ed Ferguson <ed at edsfx.com>
> *Sent:* Saturday, August 5, 2023 12:54 PM
> *To:* don.ki4d at gmail.com; 'R C' <clancy.bob at gmail.com>
> *Cc:* 'Alex Lammers' <alexlammers161 at gmail.com>; 'Andrew Davnie-Easton' <
> ki4thf at gmail.com>; 'Bjorn Jernudd' <jernudd at gmail.com>; 'Gary Sessums' <
> gary at sessums.org>; 'James Stone' <jbstonecfi at yahoo.com>; 'James Wilson' <
> telegraphjim at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>; 'Matthew
> Johnson' <Mjohnson at paradigmcos.com>; 'Ryan Stinebiser' <
> ryan.stinebiser at gmail.com>; 'Todd Taylor' <todd.taylor83 at gmail.com>;
> 'scott mcclung' <scott.mcclung.308 at gmail.com>; 'walkerl' <
> walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> I will be able to be there at 8am tomorrow. I have an inverted V on 40 I
> want to see how effective it is as NVIS. I might also take advantage of
> the open space to check my new vertical build.
>
> Ed, W4EDF
>
> On 8/4/23 23:17, don.ki4d at gmail.com wrote:
>
> Jefferson Manor Park is located here:
> https://www.google.com/maps/place/Jefferson+Manor+Park/@38.792307,-77.0852828,17z/data=!3m1!4b1!4m6!3m5!1s0x89b7b19430050a15:0xe191f9094e00c427!8m2!3d38.792307!4d-77.0827079!16s%2Fg%2F1tdpsk3g?entry=ttu
>
> 73
>
> Don, KI4D
>
>
>
> *From:* R C <clancy.bob at gmail.com> <clancy.bob at gmail.com>
> *Sent:* Friday, August 4, 2023 4:03 PM
> *To:* don.ki4d at gmail.com
> *Cc:* Alex Lammers <alexlammers161 at gmail.com> <alexlammers161 at gmail.com>;
> Andrew Davnie-Easton <ki4thf at gmail.com> <ki4thf at gmail.com>; Bjorn Jernudd
> <jernudd at gmail.com> <jernudd at gmail.com>; Ed Ferguson <ed at edsfx.com>
> <ed at edsfx.com>; Gary Sessums <gary at sessums.org> <gary at sessums.org>; James
> Stone <jbstonecfi at yahoo.com> <jbstonecfi at yahoo.com>; James Wilson
> <telegraphjim at gmail.com> <telegraphjim at gmail.com>; Joe Porcelli
> <porcej at gmail.com> <porcej at gmail.com>; Matthew Johnson
> <Mjohnson at paradigmcos.com> <Mjohnson at paradigmcos.com>; Ryan Stinebiser
> <ryan.stinebiser at gmail.com> <ryan.stinebiser at gmail.com>; Todd Taylor
> <todd.taylor83 at gmail.com> <todd.taylor83 at gmail.com>; scott mcclung
> <scott.mcclung.308 at gmail.com> <scott.mcclung.308 at gmail.com>; walkerl
> <walkerl at mindspring.com> <walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> I’m not good at searching through past emails on my phone. Where is the
> park?
>
>
>
> Thanks
>
>
>
> On Fri, Aug 4, 2023 at 3:34 PM <don.ki4d at gmail.com> wrote:
>
> At the park, earlier is better to get ahead of any reservations. 8:30
> a.m. would be the latest recommended time.
>
>
>
> 73
>
> Don
>
>
>
> *From:* R C <clancy.bob at gmail.com>
> *Sent:* Friday, August 4, 2023 3:31 PM
> *To:* don.ki4d at gmail.com
> *Cc:* Alex Lammers <alexlammers161 at gmail.com>; Andrew Davnie-Easton <
> ki4thf at gmail.com>; Bjorn Jernudd <jernudd at gmail.com>; Ed Ferguson <
> ed at edsfx.com>; Gary Sessums <gary at sessums.org>; James Stone <
> jbstonecfi at yahoo.com>; James Wilson <telegraphjim at gmail.com>; Joe
> Porcelli <porcej at gmail.com>; Matthew Johnson <Mjohnson at paradigmcos.com>;
> Ryan Stinebiser <ryan.stinebiser at gmail.com>; Todd Taylor <
> todd.taylor83 at gmail.com>; scott mcclung <scott.mcclung.308 at gmail.com>;
> walkerl <walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> I will finish building my EFHW tomorrow. Sunday is my church’s feast day
> (Holy Transfiguration) so I probably won’t be available on Sunday morning
> (unless early). The linked NVIS dipole that is being built for me is
> probably 3/4 weeks out still.
>
>
>
> KQ4ILQ Bob
>
>
>
> On Fri, Aug 4, 2023 at 3:23 PM <don.ki4d at gmail.com> wrote:
>
> Todd – well … perhaps we can break-up the taskings. Since your antenna
> is tied to your vehicle in the parking lot, if we can get the other
> builders/owners to meet on this Sunday to do placement, sizing and
> installation planning for their antennas, we could talk about the WSPR
> emitters, methodologies and procedures at the next meeting Ham workshop.
>
>
>
> What are your thoughts?
>
>
>
> 73
>
> Don
>
>
>
>
>
> *From:* Todd Taylor <todd.taylor83 at gmail.com>
> *Sent:* Friday, August 4, 2023 2:12 PM
> *To:* Ryan Stinebiser <ryan.stinebiser at gmail.com>
> *Cc:* Don (KI4D) <don.ki4d at gmail.com>; Alex Lammers <
> alexlammers161 at gmail.com>; R C <clancy.bob at gmail.com>; Andrew
> Davnie-Easton <ki4thf at gmail.com>; Bjorn Jernudd <jernudd at gmail.com>; Ed
> Ferguson <ed at edsfx.com>; Gary Sessums <gary at sessums.org>; James Stone <
> jbstonecfi at yahoo.com>; James Wilson <telegraphjim at gmail.com>; Joe
> Porcelli <porcej at gmail.com>; Matthew Johnson <Mjohnson at paradigmcos.com>;
> scott mcclung <scott.mcclung.308 at gmail.com>; walkerl <
> walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Don,
>
> I'm not sure about this Sunday, as I have some competing priorities this
> weekend. I definitely cannot do August 23rd, which is a Wednesday. Did you
> mean Sunday the 20th?
>
>
>
> I am attaching my rough draft protocol for testing. Everyone please have a
> look and offer any suggestions you may have.
>
>
>
> thanks and 73m
>
> Todd
>
> KO4IJH
>
>
>
>
>
>
>
>
>
>
>
> On Fri, Aug 4, 2023 at 12:44 PM Ryan Stinebiser <ryan.stinebiser at gmail.com>
> wrote:
>
> Don,
>
>
>
> I should be available on 6 August. I still have not tuned the antenna I
> built so I'll bring that with me and set it up and trim it on site.
>
>
>
> 73, Ryan, KO4EBY
>
>
>
> On Fri, Aug 4, 2023, 12:27 PM <don.ki4d at gmail.com> wrote:
>
> Looks like we don’t have problems with the 23 August date, perhaps we can
> do the actual testing and evaluations on that date. Given the possibility
> that the antenna builders/owners may not be going to Berryville, can we get
> together on Sunday morning, 6 August, for the site survey and planning?
>
>
>
> The following is what we would need to accomplish this Sunday:
>
> 1. Identify with certainty which antennas are to be tested
> 2. Ascertain how and where antennas will be installed on site ( in
> full detail)
> 3. Clarify the emitters/frequencies/power that will be used
> 4. Clarify the methodology and procedures for proceeding from one
> antenna use to another.
> 5. Clarify methodology and procedures for collection and correlation
> of data
> 6. Identify any potential gaps or problem areas.
>
>
>
> I would like to hear primarily from the antenna builders/owners for
> confirmation, if that is possible.
>
>
>
> 73
>
> Don
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Thursday, July 27, 2023 10:31 AM
> *To:* 'Alex Lammers' <alexlammers161 at gmail.com>; 'R C' <
> clancy.bob at gmail.com>; 'Andrew Davnie-Easton' <ki4thf at gmail.com>; 'Bjorn
> Jernudd' <jernudd at gmail.com>; 'Ed Ferguson' <ed at edsfx.com>; 'Gary
> Sessums' <gary at sessums.org>; 'James Stone' <jbstonecfi at yahoo.com>; 'James
> Wilson' <telegraphjim at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'Ryan Stinebiser' <
> ryan.stinebiser at gmail.com>; 'Todd Taylor' <todd.taylor83 at gmail.com>;
> 'scott mcclung' <scott.mcclung.308 at gmail.com>; 'walkerl' <
> walkerl at mindspring.com>
> *Subject:* RE: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Anyone have a problem with 23 August?
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* Alex Lammers <alexlammers161 at gmail.com>
> *Sent:* Thursday, July 27, 2023 10:19 AM
> *To:* R C <clancy.bob at gmail.com>
> *Cc:* Don (KI4D) <don.ki4d at gmail.com>; Andrew Davnie-Easton <
> ki4thf at gmail.com>; Bjorn Jernudd <jernudd at gmail.com>; Ed Ferguson <
> ed at edsfx.com>; Gary Sessums <gary at sessums.org>; James Stone <
> jbstonecfi at yahoo.com>; James Wilson <telegraphjim at gmail.com>; Joe
> Porcelli <porcej at gmail.com>; Matthew Johnson <Mjohnson at paradigmcos.com>;
> Ryan Stinebiser <ryan.stinebiser at gmail.com>; Todd Taylor <
> todd.taylor83 at gmail.com>; scott mcclung <scott.mcclung.308 at gmail.com>;
> walkerl <walkerl at mindspring.com>
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Unable, I have a conference that weekend.
>
>
>
> KO4ZMC
>
>
>
> On Thu, Jul 27, 2023, 8:46 AM R C <clancy.bob at gmail.com> wrote:
>
> I should be able to attend. I have a better soldering iron I still need
> to finish building the EFHW. I ordered a linked-dipole to be built
> according to The Tech Prepper’s specs for use as an NVIS antenna. The 80m
> segment of the linked-dipole will need to be trimmed. It may or may not be
> built and delivered to me by August 13th. The EFHW also still needs to be
> tuned.
>
>
>
> KQ4ILQ Bob Clancy
>
>
>
> On Thu, Jul 27, 2023 at 8:32 AM <don.ki4d at gmail.com> wrote:
>
> The Berryville Hamfest scheduled on August 6th. In a chat with Todd, I
> learned that he is able to attend a NVIS antenna site survey and planning
> session on August 13th. For those who have antennas to be tested, please
> confirm that the 13th will work for you. This session is to help us
> figure out the best way to setup so we won’t have hiccups or have that
> concern the day we are focused on getting the testing done in a timely
> fashion.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Wednesday, July 12, 2023 6:11 AM
> *To:* 'Todd Taylor' <todd.taylor83 at gmail.com>
> *Cc:* 'Andrew Davnie-Easton' <ki4thf at gmail.com>; 'Alex Lammers' <
> alexlammers161 at gmail.com>; 'Ryan Stinebiser' <ryan.stinebiser at gmail.com>;
> 'walkerl' <walkerl at mindspring.com>; 'James Wilson' <telegraphjim at gmail.com>;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'scott mcclung' <
> scott.mcclung.308 at gmail.com>; 'James Stone' <jbstonecfi at yahoo.com>;
> 'Bjorn Jernudd' <jernudd at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Ed Ferguson' <ed at edsfx.com>; 'R C' <clancy.bob at gmail.com>; 'Gary
> Sessums' <gary at sessums.org>
> *Subject:* RE: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Todd – many thanks for volunteering to craft a WSPR testing plan. We will
> need that very much for our testing.
>
>
>
> Looks like we have August 6, 13, and 23 available for our planned
> activities. How does the August 6 date work for the initial site survey,
> etc.? Please note that we need confirmation for attendance, particular
> from those with antennas to be tested. Thanks for your cooperation.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* Todd Taylor <todd.taylor83 at gmail.com>
> *Sent:* Tuesday, July 11, 2023 10:01 AM
> *To:* don.ki4d at gmail.com
> *Cc:* Andrew Davnie-Easton <ki4thf at gmail.com>; Alex Lammers <
> alexlammers161 at gmail.com>; Ryan Stinebiser <ryan.stinebiser at gmail.com>;
> walkerl <walkerl at mindspring.com>; James Wilson <telegraphjim at gmail.com>;
> Matthew Johnson <Mjohnson at paradigmcos.com>; scott mcclung <
> scott.mcclung.308 at gmail.com>; James Stone <jbstonecfi at yahoo.com>; Bjorn
> Jernudd <jernudd at gmail.com>; Joe Porcelli <porcej at gmail.com>; Ed Ferguson
> <ed at edsfx.com>; R C <clancy.bob at gmail.com>; Gary Sessums <gary at sessums.org
> >
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Any weekend but the 26th-27th of August should be ok for me.
>
>
>
> I will try to put together a WSPR testing plan to share ASAP. That way we
> can all measure our antennas the same way and compare results. Of course,
> if anyone has feedback on my proposal or suggestions beforehand, we can
> work those in as well. Just let me know.
>
>
>
> Additionally, there was a question at the last meeting about NVIS being
> covered in the ARRL Antenna Book. If you have a copy, section 14.2.2 (pages
> 14.9-16) discusses NVIS in some detail.
>
>
>
> On Tue, Jul 11, 2023 at 9:08 AM <don.ki4d at gmail.com> wrote:
>
> OK, understand; thanks for letting us know. I am thinking that we should
> wait until Ryan returns to the Area to reschedule in August. My sense is
> that your experience and guidance is critical for the WSPR gear/software
> configurations setups we need for the antenna tests. Looking at the
> calendar, can you see a Sunday in August for your availability?
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* Todd Taylor <todd.taylor83 at gmail.com>
> *Sent:* Tuesday, July 11, 2023 8:32 AM
> *To:* don.ki4d at gmail.com
> *Cc:* Andrew Davnie-Easton <ki4thf at gmail.com>; Alex Lammers <
> alexlammers161 at gmail.com>; Ryan Stinebiser <ryan.stinebiser at gmail.com>;
> walkerl <walkerl at mindspring.com>; James Wilson <telegraphjim at gmail.com>;
> Matthew Johnson <Mjohnson at paradigmcos.com>; scott mcclung <
> scott.mcclung.308 at gmail.com>; James Stone <jbstonecfi at yahoo.com>; Bjorn
> Jernudd <jernudd at gmail.com>; Joe Porcelli <porcej at gmail.com>; Ed Ferguson
> <ed at edsfx.com>; R C <clancy.bob at gmail.com>; Gary Sessums <gary at sessums.org
> >
> *Subject:* Re: DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Don,
>
>
>
> I will not be able to attend the walkthrough on Sunday, but please proceed
> without me. For my antenna at least, I will only need somewhere to park the
> Jeep and approximately 35 ft of space behind it to run the wire. I will
> look on Google maps to determine what should work for me.
>
>
>
> 73,
>
> Todd KO4IJH
>
>
>
> On Sat, Jul 8, 2023 at 2:10 PM <don.ki4d at gmail.com> wrote:
>
> All - as a next step for the NVIS Antenna project testing/evaluation, I am
> proposing that we meet at Jefferson Manor Park on Sunday, July 16th at
> 8:30 a.m., for a site survey. Purpose would be to map out and plan antenna
> installation sites, feedlines, radio equipment needs, etc. Once we have
> all of this figured out, we can take time to fill-in the gaps and set a
> date for execution, maybe Aug 6, weather permitting. Please let me know if
> the July 16th is a problem.
>
>
>
> After email discussions with Todd and Ryan, I am proposing that we take
> their recommendation to use WSPR as the mode of propagation for antenna
> testing to get a measure of best regional coverage on the bands of
> interest. During Todd’s presentation at the DIY Ham Workshop, he displayed
> WSPR propagation patterns for his NVIS antenna.
>
>
>
> Please provide any thoughts you may have.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Saturday, June 10, 2023 7:15 PM
> *To:* 'Todd Taylor' <todd.taylor83 at gmail.com>; 'Andrew Davnie-Easton' <
> ki4thf at gmail.com>; 'Alex Lammers' <alexlammers161 at gmail.com>; 'Ryan
> Stinebiser' <ryan.stinebiser at gmail.com>; 'walkerl' <walkerl at mindspring.com>;
> 'James Wilson' <telegraphjim at gmail.com>; 'Matthew Johnson' <
> Mjohnson at paradigmcos.com>; 'scott mcclung' <scott.mcclung.308 at gmail.com>;
> 'James Stone' <jbstonecfi at yahoo.com>; 'Bjorn Jernudd' <jernudd at gmail.com>;
> 'Joe Porcelli' <porcej at gmail.com>; 'Ed Ferguson' <ed at edsfx.com>; 'R C' <
> clancy.bob at gmail.com>
> *Cc:* 'Gary Sessums' <gary at sessums.org>
> *Subject:* DIY for Near Vertical Incident Skywaves (NVIS) Antennas
> Presentation
>
>
>
> Some references and small edits were made to the presentation last night.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Friday, June 9, 2023 4:48 PM
> *To:* 'Todd Taylor' <todd.taylor83 at gmail.com>; 'Andrew Davnie-Easton' <
> ki4thf at gmail.com>; 'Alex Lammers' <alexlammers161 at gmail.com>; 'Ryan
> Stinebiser' <ryan.stinebiser at gmail.com>; 'walkerl' <walkerl at mindspring.com>;
> 'James Wilson' <telegraphjim at gmail.com>; 'Matthew Johnson' <
> Mjohnson at paradigmcos.com>; 'scott mcclung' <scott.mcclung.308 at gmail.com>;
> 'James Stone' <jbstonecfi at yahoo.com>; 'Bjorn Jernudd' <jernudd at gmail.com>;
> 'Joe Porcelli' <porcej at gmail.com>; 'Ed Ferguson' <ed at edsfx.com>; 'R C' <
> clancy.bob at gmail.com>
> *Subject:* RE: DIY for NVIS Antennas (DRAFT ppt)
>
>
>
> Attached is the final version. Many thanks to all who contributed;
> looking forward to a great presentation tonight.
>
>
>
> 73
>
> Don, KI4D
>
>
>
>
>
>
>
> *From:* Todd Taylor <todd.taylor83 at gmail.com>
> *Sent:* Friday, June 9, 2023 10:32 AM
> *To:* don.ki4d at gmail.com
> *Cc:* Andrew Davnie-Easton <ki4thf at gmail.com>; Alex Lammers <
> alexlammers161 at gmail.com>; Ryan Stinebiser <ryan.stinebiser at gmail.com>;
> walkerl <walkerl at mindspring.com>; James Wilson <telegraphjim at gmail.com>;
> Matthew Johnson <Mjohnson at paradigmcos.com>; scott mcclung <
> scott.mcclung.308 at gmail.com>; James Stone <jbstonecfi at yahoo.com>; Bjorn
> Jernudd <jernudd at gmail.com>; Joe Porcelli <porcej at gmail.com>; Ed Ferguson
> <ed at edsfx.com>; R C <clancy.bob at gmail.com>
> *Subject:* Re: DIY for NVIS Antennas (DRAFT ppt)
>
>
>
> Looks great, Don. I'm including some rough testing data on my antenna
> utilizing WSPR. I'll bring a printout but feel free to add the chart to the
> slides if you like.
>
> 73,
>
> Todd
>
> KO4IJH
>
>
>
> On Fri, Jun 9, 2023 at 7:28 AM <don.ki4d at gmail.com> wrote:
>
> All – attached is the final version for tonight less some very minor
> touches. Bob – are we still a go for tonight? Thanks.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Thursday, June 8, 2023 10:22 AM
> *To:* 'Andrew Davnie-Easton' <ki4thf at gmail.com>; 'Alex Lammers' <
> alexlammers161 at gmail.com>; 'Ryan Stinebiser' <ryan.stinebiser at gmail.com>;
> 'walkerl' <walkerl at mindspring.com>; 'James Wilson' <telegraphjim at gmail.com>;
> 'Todd Taylor' <todd.taylor83 at gmail.com>; 'Matthew Johnson' <
> Mjohnson at paradigmcos.com>; 'scott mcclung' <scott.mcclung.308 at gmail.com>;
> 'James Stone' <jbstonecfi at yahoo.com>; 'Bjorn Jernudd' <jernudd at gmail.com>;
> 'Joe Porcelli' <porcej at gmail.com>; 'Ed Ferguson' <ed at edsfx.com>; 'R C' <
> clancy.bob at gmail.com>
> *Subject:* DIY for NVIS Antennas (DRAFT ppt)
>
>
>
> Attached is the proposed presentation for tomorrow’s meeting. Please
> confirm the individual presentations and provide any feedback, as
> appropriate. I can provide photos for discussions if you don’t have any.
> Thanks.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* Don Lewis <don.ki4d at gmail.com>
> *Sent:* Thursday, June 1, 2023 10:58 AM
> *To:* Andrew Davnie-Easton <ki4thf at gmail.com>
> *Cc:* Alex Lammers <alexlammers161 at gmail.com>; Ryan Stinebiser <
> ryan.stinebiser at gmail.com>; walkerl <walkerl at mindspring.com>; James
> Wilson <telegraphjim at gmail.com>; Todd Taylor <todd.taylor83 at gmail.com>;
> Matthew Johnson <Mjohnson at paradigmcos.com>; scott mcclung <
> scott.mcclung.308 at gmail.com>; James Stone <jbstonecfi at yahoo.com>; Bjorn
> Jernudd <jernudd at gmail.com>; Joe Porcelli <porcej at gmail.com>; Ed Ferguson
> <ed at edsfx.com>; R C <clancy.bob at gmail.com>
> *Subject:* Re: Welcome to Andy, KI4THF
>
>
>
> The NVIS antenna DIY presentation to the club is just over a week away.
>
>
>
> As we discussed in the NVIS Zoom meeting, the presentation agenda has the
> following main points:
>
> 1. Project Overview
> 2. Overall Group Progress To Date
> 3. Individual Antenna Presentations
> 4. Future Next Steps
> 5. Conclusions
>
> With 5 to 6 individual antenna presentations, we need to be as complete
> as possible concerning each antenna presentation; yet, as brief as possible
> to make sure that everyone has a chance to speak. To help this process I am
> proposing that each antenna presentation address the following points:
>
> 1. Chosen Antenna Name/Type
> 2. HF bands covered
> 3. Portability for carry (shape/size/weight)
> 4. Space required for deployment
> 5. One person installation (Yes/No)
> 6. Installation details for NVIS configuration
> 7. DIY project (Yes/No)
> 8. DIY Issues/difficulty
> 9. Testing result, if any
>
> The idea is to create a spreadsheet containing these points to later
> provide a quick comparison of antennas. Please consider this approach as
> work in progress, we can make improvements as we go forward.
>
>
>
> Thus far, we need to confirm that we will have the following antenna
> presentations:
>
> Todd - Vehicular antenna
>
> Alex - AS-2259
>
> Ryan - Alpha Delta DX-DD hack
>
> Bob - EFHW (DIY?)
>
> Don - End Fed Long Wire (kit)
>
> Andy - Chameleon End Fed antenna ??
>
>
>
> If you will send me photos of your antennas, I will make sure they are
> shown on the meeting slides so that the Zoom audience can view them during
> your antenna discussions.
>
>
>
> The plan is that the in-person meeting audience will be able to "touch and
> feel" and ask questions about antennas in the room.
>
>
>
> Please feel free to comment on this plan with your thoughts and ideas.
>
>
>
> 73
>
> Don, KI4D
>
>
>
>
>
>
>
> On Thu, May 25, 2023 at 11:35 PM <don.ki4d at gmail.com> wrote:
>
> Andy – welcome to the NVIS Antenna Working Group. I was delighted to
> learn about your long-ago experiences with NVIS propagation and your recent
> purchase of a Chameleon NVIS antenna on the Weekly Net tonight. I hope you
> will share your NVIS experiences with us. The working group plans a DIY
> presentation to the club on June 9th. This presentation will include
> commercially built antennas as well. The main point is to find the best
> performing portable NVIS antennas for go-kit recommendations to the club.
> If you would like to present your antenna in a brief discussion on June
> 9th, please let me know. We are planning a field test and evaluation event
> of selected antennas in mid-July. Hope you will want to join us.
>
>
>
> 73
>
> Don, KI4D
>
>
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Wednesday, May 24, 2023 3:05 PM
> *To:* 'Alex Lammers' <alexlammers161 at gmail.com>; 'Ryan Stinebiser' <
> ryan.stinebiser at gmail.com>; 'walkerl' <walkerl at mindspring.com>; 'James
> Wilson' <telegraphjim at gmail.com>; 'Todd Taylor' <todd.taylor83 at gmail.com>;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'scott mcclung' <
> scott.mcclung.308 at gmail.com>; 'James Stone' <jbstonecfi at yahoo.com>;
> 'Bjorn Jernudd' <jernudd at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Ed Ferguson' <ed at edsfx.com>; 'R C' <clancy.bob at gmail.com>
> *Subject:* REMINDER: Proposed Zoom meeting next Wednesday evening, May
> 24th, at 7:00 p.m.
>
>
>
> The meeting for tonight is a “go,” apologize for the short notice
> confirmation. The link for the Zoom meeting is below.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> Topic: NVIS Antenna Working Group
>
> Time: May 24, 2023 07:00 PM Eastern Time (US and Canada)
>
> Join Zoom Meeting
>
> https://us02web.zoom.us/j/86130199992?pwd=WGpPY2dXR1Z4RURJWFVhRW5rUWlBQT09
>
>
>
> Meeting ID: 861 3019 9992
>
> Passcode: 182482
>
>
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Thursday, May 18, 2023 5:49 PM
> *To:* 'Alex Lammers' <alexlammers161 at gmail.com>; 'Ryan Stinebiser' <
> ryan.stinebiser at gmail.com>; 'walkerl' <walkerl at mindspring.com>; 'James
> Wilson' <telegraphjim at gmail.com>; 'Todd Taylor' <todd.taylor83 at gmail.com>;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'scott mcclung' <
> scott.mcclung.308 at gmail.com>; 'James Stone' <jbstonecfi at yahoo.com>;
> 'Bjorn Jernudd' <jernudd at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Ed Ferguson' <ed at edsfx.com>
> *Subject:* Proposed Zoom meeting next Wednesday evening, May 24th, at
> 7:00 p.m.
>
>
>
> To prepare for the NVIS antenna DIY session meeting on June 9th, I would
> like to schedule a Zoom meeting next Wednesday evening, May 24th, at
> 7:00 p.m. Pleases advise if this is problematic for you. The main goal of
> the meeting is to create an agenda that will provide the order of topics to
> be presented and the speakers leading those topics at the June meeting.
>
>
>
> I have heard from some people about antenna selections, but not everyone.
> For those working on DIY antenna project selections, the goal is to get a
> project status update that includes a list of components needed that
> someone else may have in excess. This discussion could also let us know
> more about who may be helpful in other ways.
>
>
>
> As soon as it is clear this meeting is a “go,” I will send a Zoom link.
>
>
>
> Tonight, I will be posting all references to a Google Drive for your
> convenience. Attached is another reference for a AS-2299 which is not a
> resonant antenna.
>
>
>
> 7d
>
> Don, KI4D
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Friday, May 12, 2023 9:09 AM
> *To:* 'Alex Lammers' <alexlammers161 at gmail.com>; 'Ryan Stinebiser' <
> ryan.stinebiser at gmail.com>
> *Cc:* 'walkerl' <walkerl at mindspring.com>; 'James Wilson' <
> telegraphjim at gmail.com>; 'Todd Taylor' <todd.taylor83 at gmail.com>;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'scott mcclung' <
> scott.mcclung.308 at gmail.com>; 'James Stone' <jbstonecfi at yahoo.com>;
> 'Bjorn Jernudd' <jernudd at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Ed Ferguson' <ed at edsfx.com>
> *Subject:* RE: Welcome to the Workgroup for Construction, and Testing &
> Evaluation of DIY NVIS Antennas
>
>
>
> Thanks for the contribution, Alex - we may really need your help with
> this when it comes to UnUn/Balun boxes or wire winders. Hope to see you at
> the meeting tonight.
>
>
>
> 73
>
> Don, KI4D
>
>
>
> *From:* Alex Lammers <alexlammers161 at gmail.com>
> *Sent:* Friday, May 12, 2023 8:21 AM
> *To:* Ryan Stinebiser <ryan.stinebiser at gmail.com>
> *Cc:* Don (KI4D) <don.ki4d at gmail.com>; walkerl <walkerl at mindspring.com>;
> James Wilson <telegraphjim at gmail.com>; Todd Taylor <
> todd.taylor83 at gmail.com>; Matthew Johnson <Mjohnson at paradigmcos.com>;
> scott mcclung <scott.mcclung.308 at gmail.com>; James Stone <
> jbstonecfi at yahoo.com>; Bjorn Jernudd <jernudd at gmail.com>; Joe Porcelli <
> porcej at gmail.com>; Ed Ferguson <ed at edsfx.com>
> *Subject:* Re: Welcome to the Workgroup for Construction, and Testing &
> Evaluation of DIY NVIS Antennas
>
>
>
> Also have a 3D printer, it can do most 3" x 3" by 3" prints with minimal
> warping
>
>
>
> On Fri, May 12, 2023 at 8:15 AM Ryan Stinebiser <ryan.stinebiser at gmail.com>
> wrote:
>
> Don,
>
>
>
> I can provide a better list if sources and instructions to build 49:1
> UNUNs, 9:1 UNUNs, and loading coils for the short 80m dipole when I get
> back to my home computer.
>
>
>
> - Newark usually has good prices on FT240-43 and FT140-43 torroids. Check
> Mouser as well. A single FT140-43 can handle 100w SSB with no problem. If
> you plan on running high power, use multiple FT240-43s stacked in your
> transformer.
>
>
>
> - I sourced the 100pF, 10kV rated capacitor for the 49:1 transformer from
> Ebay (the blue ones)
>
>
>
> - AutomationDirect has good prices on spools of hookup wire, especially 20
> awg. Usually free shipping too.
>
>
>
> - Amazon for almost everything else (18 or 14 gauge magnet wire, solid
> core wire, ring terminals, etc.)
>
>
>
> I have a ton of magnet wire. Probably enough for each of us to make a
> transformer.
>
>
>
> I recently fixed my 3d printer and can print cases and wire winders for
> the group with enough advance notice.
>
>
>
> 73, Ryan, KO4EBY
>
>
>
> On Fri, May 12, 2023, 12:06 AM <don.ki4d at gmail.com> wrote:
>
> Thanks to those who have responded with antenna selections. This input
> will help steer the direction of the project. The more input we have, the
> better outcome we will have; so please continue making contributions.
>
>
>
> I want to follow-up with some ideas on how we can proceed and think about
> the project. Some may want to actually build DIY antennas from a list of
> identified components, some want to build an antenna kit that comes with
> components, some may want to demonstrate antennas they have already built,
> and some may just want to follow the process to be informed and/or
> contribute thoughts here and there. Finally, some may just want
> participate in the test and evaluation process. Of course, all of these
> approaches are just fine. Listed here are some NVIS antenna possibilities:
>
>
>
> 1. For those who want to actually build DIY antennas from a list of
> parts, time is becoming critical because DIY-day only a month away. Parts
> and component research, ordering process, and shipping could introduce
> unexpected delays before construction can began. Ryan may have some ideas
> on where to source these items with a quick turn-around.
> 2. Those interested in building kits may not face much of a delay
> before construction can begin. The ARRL has an EFHW 49:1 UnUn HF kit for
> sale
> https://home.arrl.org/action/Store/Product-Details/productId/133267,
> see attachment . This kit is manufactured by “HF Kits” in the
> Netherlands. I recently ordered a Long Wire (Random Length) 9:1 UnUn HF
> kit directly from “HF kits <http://www.hfkits.nl/>.” on May 7th, see
> attachment. It arrived in Alexandria via UPS on May 10th. The kit
> from the Netherlands with shipping was a few dollars cheaper than the
> listed price of the kit on the ARRL website.. There is no wire supplied
> with either of these kits. KM4ACK
> <https://km4ack.square.site/shop/antennas/6?page=1&limit=60&sort_by=popularity_score&sort_order=desc>
> also offers portable 49:1 EFHW antenna kits that can be used for NVIS, when
> they are in stock.
> 3. For the center-fed dipoles and inverted-V antennas “HF kits
> <http://www.hfkits.nl/>” offers Baluns for 150W and 800W versions.
> Wire lengths are sold with these units depending on the operating bands,
> see attachments.
> 4. For those interested in the AS-2259, see the modified AS-2259
> antenna, attached. This antenna design modifies the military version of
> this antenna so that it works in the Ham bands. The antennas require
> loading coils as described in the instructions. I have a meter that will
> measure the inductances of coils, if needed.
> 5. For those interested in using the Buddipole system, there are three
> references.
> 6. The Hamsticks or Hustler Radiator DIY Dipoles require two separate
> antennas designed for specific bands to be used with a special adapter that
> connects the two separate antenna systems, see attachments for the
> antennas.
> 7. A roadside vehicle NVIS antennas design is attached.
> 8. The general problem with portable “small” magnetic loops is that
> they can’t be designed for 80 meters give the size they require; operation
> on the 80-meter band is desirable for nigh-time operations. Please see
> attachments for small magnet loop antenna.
>
> All ideas are invited, please keep them coming.
>
> 73
>
> Don, KI4D
>
>
>
>
>
> *From:* don.ki4d at gmail.com <don.ki4d at gmail.com>
> *Sent:* Thursday, May 4, 2023 11:37 AM
> *To:* 'Ryan Stinebiser' <ryan.stinebiser at gmail.com>; 'walkerl' <
> walkerl at mindspring.com>; 'Alex Lammers' <alexlammers161 at gmail.com>;
> 'James Wilson' <telegraphjim at gmail.com>; todd.taylor83 at gmail.com;
> 'Matthew Johnson' <Mjohnson at paradigmcos.com>; 'scott mcclung' <
> scott.mcclung.308 at gmail.com>; 'James Stone' <jbstonecfi at yahoo.com>;
> 'Bjorn Jernudd' <jernudd at gmail.com>; 'Joe Porcelli' <porcej at gmail.com>;
> 'Ed Ferguson' <ed at edsfx.com>
> *Subject:* Welcome to the Workgroup for Construction, and Testing &
> Evaluation of DIY NVIS Antennas
>
>
>
> This note is to welcome participants of this group and to open discussions
> on portable antennas that may be most suitable for NVIS propagation.
>
>
>
> This includes considerations of space restraints or other limitations.
> Discussions will include planning and scheduling testing and evaluation of
> antennas as a basis for selection of the best NVIS antennas for inclusion
> in EMCOMM go-kits, POTA activities, and participation in Virginia QSO
> Parties.
>
>
>
> Please add your thoughts and comments at any time, they are most important
> to success of the project.
>
>
>
> Some antennas DIY projects for considerations are:
>
> 1). DIY Center-fed Dipole, and a loading coil shortened version
>
> 2). DIY End-fed Dipole, and a loading coil shortened version
>
> 3). DIY Center-fed Inverted V, and a loading coil shortened version
>
> 4). DIY End-fed Inverted V, and a loading coil shortened version
>
> 5). DIY AS-2259, and a loading coil shortened version
>
> 6). DIY Random Length Wire Antennas
>
> 7). DIY Vehicular counterpoise NVIS antennas
>
> 8). Buddipole NVIS DIY Configuration
>
> 9). Hamsticks/Hustler Radiator DIY Dipoles
>
> 10). Small Loop DIY antennas
>
>
>
> Since parts and components may need to be sourced and ordered for the DIY
> antenna construction session, it would be good if each person could select
> two or three antenna types of their choice so that, if desirable, we can
> combine them to get group rates for ordering parts. If additional
> amplification or details are needed about any antenna listed or on any
> aspect of the project, please send me a note or post a note to the group.
> To keep the project on schedule, please make your antenna selections known
> by May 11th. Those selected antennas will be featured during the DIY
> presentation.
>
>
>
> Depending on antenna selections, we will be able to focus best on aspects
> of the project that may require the most DIY components and efforts such as
> toroids and capacitors needed, matching unit construction and mounting
> techniques, loading coil construction techniques, etc.
>
>
>
> Forwarded with this email is Ed’s (W4EDF) email with a link to his YouTube
> video on a center-fed NVIS antenna. Also attached are other references for
> discussions that may take place in the future, and will be included in the
> listing of references used for the project. Information on commercial
> products is included only for gaining DIY know-how.
>
>
>
> As you know, Ryans presentation on his NVIS experiences during the
> Virginia QSO Party is schedule for the next meeting on May 12th.
>
>
>
> 73
>
> Don, KI4D
>
>
>
>
>
>
>
> *From:* Ed Ferguson <ed at edsfx.com>
> *Sent:* Wednesday, April 26, 2023 9:49 AM
> *To:* don.ki4d at gmail.com
> *Subject:* Re: [ARC Members Only] Opportunity for Construction, and
> Testing & Evaluation of DIY NVIS Antennas
>
>
>
> Don, for some reason, I'm not able to reply to this chain but wanted to
> share the video of the dipole center I built that can be used for nvis
>
> https://www.youtube.com/watch?v=Z-cUNs274rU
>
>
>
> 73, W4EDF
>
>
>
>
>
> On 4/24/23 23:52, don.ki4d at gmail.com wrote:
>
> This is to announce an opportunity for those interested in learning about
> antennas from “hands-on” HF antenna construction, and testing and
> evaluation. Antennas are one of the few things in amateur radio that hams
> have control over, depending on where they live. Compared to many years
> ago when hams commonly built their own transmitters and receivers, there
> are few “hands-on” equipment construction opportunities today. Moreover,
> good antennas can be more important to a ham radio station than the type of
> radio equipment to communications.
>
>
>
> At the last club meeting, I gave a presentation on “Beyond Line of Sight
> (LOS) with NVIS (Near Vertical Incident Skywave)” propagation, see attached
> presentation. The presentation was the first of three planned
> presentations covering NVIS to be held during the Ham Workshop segment of
> meetings, see presentation blocks attached. The purpose of these
> presentations is to enhance understanding of HF antennas and to improve
> capabilities of club members to respond to disasters or emergencies using
> their ham radio skills. During national disasters in the past, whether
> natural or man-made, widespread power outages and telecommunications
> outages have become realities. Ham radio has led the way in helping
> communities to restore communications after disasters. Hurricane Katrina
> and other extreme storm events are examples. Somewhat surprisingly, there
> have been recent reports of intentional attacks on power transmission
> facilities that caused widespread power and communications outages.
>
>
>
> The DIY antenna construction session is currently scheduled for June 9th.
> During the DIY antenna construction session, antenna construction
> techniques will be presented on candidate HF antennas for portable NVIS
> operations. Demonstrations will consist of construction of simple dipoles,
> endfed halfwave (EFHW) dipoles; and random length endfed wire, inverted
> “V”, and AS-2259 antennas. Also demonstrated will be Buddipole “NVIS”
> antennas and “ham stick” NVIS antennas, as well as others. Leading up to
> the session, club members will be encouraged to bring in their portable
> NVIS antennas for discussions and questions. On-going discussions will
> include “how-to” source antenna parts and components and “how-to”
> techniques for construction of HF antennas and installation.
>
>
>
> For this project, we would like to form a working group that will develop
> testing plans and schedules for field test events that will permit testing
> and evaluation of different portable NVIS antenna designs and
> configurations under different conditions always seeking optimum results.
> The results could prove helpful in making recommendations for portable NVIS
> antennas for go-kits.
>
>
>
> Ryan Stinebiser, KO4EBY, and I will conduct these sessions. Please send
> me an email to let us know if you would like to participate in this project
> on the working group. We would like to get started as soon as possible.
> See link below on some of the files we have discussed. Soon they will be
> better organized.
>
> 73
>
> Don, KI4D
>
>
>
>
> https://drive.google.com/drive/folders/1Y7d-rlSkIk5WPcRlt_TvsFUsyEx6j2A8?usp=share_link
>
>
>
>
>
>
>
>
>
> --
> You received this message because you are subscribed to the Google Groups
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> To unsubscribe from this group and stop receiving emails from it, send an
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> alexandria-radio-club-current-membership+unsubscribe at googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/alexandria-radio-club-current-membership/03f901d97729%2464a3c840%242deb58c0%24%40gmail.com
> <https://groups.google.com/d/msgid/alexandria-radio-club-current-membership/03f901d97729%2464a3c840%242deb58c0%24%40gmail.com?utm_medium=email&utm_source=footer>
> .
>
> --
>
> Bob Clancy
>
> --
>
> Bob Clancy
>
> --
>
> Bob Clancy
>
> --
>
> Bob Clancy
>
>
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