2020 ARRL DX SSB

Call: W5WZ
Operator(s): W5WZ WM5H K5OF K1DW KA5M
Station: W5WZ

Class: M/2 HP
QTH: LA – Louisiana
Operating Time (hrs): 45:42

Summary:

Band QSOs Mults

160: 35 32
80: 163 70
40: 298 84
20: 753 107
15: 214 55

10: 4 4

Total: 1467 352 Total Score = 1,500,576

Club: Louisiana Contest Club

Comments:

Several “firsts” for the W5WZ station and team for this contest.

First time for Ed, K5OF to join the W5WZ team, flying in from North Carolina.
It was good to have him on the team.

K5OF at Run1, and W5WZ at Run2

First time for Dallas, K1DW to guest op at W5WZ; he operated from his home in
Texas, by remote controlling one of the K3’s at W5WZ.

First DX contest since expanding the beverage receive antenna farm.

First contest since moving the 80-meter dipole from 77 to 105 feet.
First contest with the EA4TX interlock installed, allowing easy Run/S&P on a
single band.

Marsh KA5M also drove in from Shreveport (100 miles) on Sunday.

Special thanks to Sharon KW5MOM for the pot of gumbo and the pot of chili; Bobby
for the usual spread of deli meats and breads; Ed for pre-contest dinner on
Thursday night.

WM5H at Run1

As usual, too much food AND lots of fun!

–73, Scott W5WZ

January 2020 NAQP SSB

Band QSOs Mults
160: 104 36
80: 320 50
40: 573 55
20: 658 52
15: 106 25
10: 0 0
Total: 1761 218 Total Score 383,898

Since last weekend\’s NAQP CW, all the shack Window 7 computers were replaced with Window 10 computers. Added a single Logitech wireless keyboard/mouse – discovered that RF causes problems with – putting both computers in a F1 voice keyer loop. During the 15 meter run in the 2nd hour of the contest, something in the RF path failed, sending the SWR very high, prematurely ending our work on 15 meters. No other problems. Me and Bobby both stayed in the seat.

Our best performance to date in an NAQP!

Thanks for the QSOs, and thanks for those that accepted our invite to move to other bands.

Station Maintenance Oct 11 & 12, 2019

Over time, things up in the air change! I’d put together an ambitious to-do list!

Towable 55-foot reach aerial lift. Electric, runs on self-contained batteries. Cost $375 for the weekend.

Bobby WM5H and I rented a 55-foot aerial lift, because the 40-meter feed point is 12 feet away from the tower. With Bobby as ground crew and Scott in the bucket, we were able to complete:

  • Repair 40-meter Yagi at 52-feet above ground. Problem was a fried balun connector.
  • Repair 15-meter Yagi at 52-feet above ground. Problem was loose hardware connecting hairpin to driven element.
  • Use lift to rework 17-meter tower
    -Add back stay.
    -Secure new hard line and control cable to tower, leaving loop for tilt-over.
    -Replace rotator loop feed line.
  • Use lift to cut down storm-damaged ash tree in sections. This was more of a chore than expected.
  • Trim a large pine tree behind shop, strategically leaving limbs for easy wire antenna support. Installed a pulley at 55 feet above ground on a limb.
  • Install new 580-foot beverage wire for SW direction
  • Install new 580-foot beverage wire for SE direction
W5WZ accessing 40-meter feed point. The 15-meter feed point is first element on the left side of the tower along the same boom
Fried female UHF connector for the input of the 40-meter 1:1 balun at the feedpoint. The balun was a CAL-AV LABS high power bead balun.
Post-repair sweep of the antenna from the main run radio. This is how it is supposed to be!

At the end of the second day, some items remain to be completed:

  • Move 80-meter Inverted-Vee from 77-feet to 105-feet. Extend feed line as required. Tie out ends as required. Modeling by KA5M shows 1-dB gain increase at 20 degrees elevation; should be a worthwhile change.
  • Build new 160-meter ground plane vertical with elevated radials in new location. Tie top support rope off near top of tower. Run hard line as feed line to new feed point.
  • Re-arrange several wire antennas supported by trees. Replace string with new antenna rope.
  • For the two new beverage antennas, run feed line on the ground. Drive 2 ground rods, install transformer and feed point termination.

Beverage Termination Resistors

I use Mouser part # 660-SPR2CT521R471J or 660-SPR2CT52R471J or 588-ON4715E-R58
Carbon Film Resistors – Through Hole 2W 470 ohm 5%TR
$0.10 to $0.46 each, vs the big retailer selling them at $2.49 each