W6HA Field Day 2019 Results N6VZF, KM6NRL, N6MDV July 18, 2019

Note of Appreciation from Redondo Beach City Hi Mike,   We hope you had a nice weekend! I am so happy to hear that ARRL Field Day was a success at Wilderness Park! We appreciate you choosing Wilderness Park year after year as your venue to showcase your big event. My husband, daughter and I came by on Saturday afternoon to see what Radio Field Day was all about and had a great time! Since stopping by and learning about radio communication I have heard and actually understood 3 separate ham radio references! I am glad that Wilderness Park Rangers Riku and Scotty helped direct visitors to your exhibit at Pine camp. I would not be surprised if they went to the licensing class in October because they both said they really enjoyed learning what you had to teach. Looking forward to more ARRL Field Days at Wilderness Park in the future! Kind regards, Erica Brown Alta Vista & Wilderness Park Programs Coordinator erica.brown@redondo.org

5 Stations – Emergency Power

Many Yagi, Wire, & Vertical Antennas Triplexer to share main yagi

46 Visitors and Many Club Members

Many Activities – Great Involvement by All

Field Day 2019 – How Many Points? QSO Points 21 CW +122 Digital + 726 Phone = 869 QSOs 2018: 10 CW +22 Digital + 1386 Phone = 1418 QSOs Power Multiplier and Point multiplier: 2024 QSO Points Bonus Points: 1670 We got points in nearly every bonus category! Total Field Day Points = 3694 2018: Total Field Day Points = 4606

Field Day 2019 – People We Had Lots of People Helping Out Friday Setup: 17+ Field Day: 24+ Visitors – We Improved dramatically – nice ambience We had 46 visitors sign the log 2018: We had 14 visitors sign the log

Plenty of QSO’s First Contacts for Many

Gathered Nearly All Bonus Point Options

Many Operators

Antenna and Digital Summary KM6NRL 40M @ Field Day 2019 Antenna and Digital Summary KM6NRL

Antenna Details: 40M Dipole - Strung “Flat Top” at around 35-45 Feet - 64 Feet of #14 AWG Stranded Wire (Twisted down from 68 Feet) - Unadilla HF Current Balun (W2DU-HF) - 75 Feet of ABR 218XATC (LMR240) - 50 Feet of RG213

Antenna Performance - EZNEC Projections

Antenna Performance - Analyzer Measurements

Antenna Performance - Analyzer Measurements

Antenna Smith Chart

Antenna Smith Chart Details

Dipole Math

FT8 - Lessons Learned Waterfall from https://www.physics.princeton.edu/pulsar/K1JT/FT8_Operating_Tips.pdf Note the different zones of activity in the waterfall When calling CQ (always work “split”): Red: Don’t transmit or receive here Yellow: Avoid if possible Blue: Transmit here Black: Listen here

FT8 + 40M Dipole: How Well Did It Work Saturday? Mostly negative, double-digit signal reports from the East Coast Eastern United States was reachable nearly the entire time FT8 was running Saturday Night No East Coast 40M FT8 contacts made the next morning Out of all logged FT8 contacts, 1 out of 4 were made to the Eastern United States

FT8: Midwest Coverage (Half of All Contacts Made)

FT8 + 40M Dipole: Local Contacts? 1 out 4 logged contacts was from California Contacts made with others in California every hour FT8 was running Good mix of single-digit negative signal reports and low positives ( with the occasional outlier