Home » Archive by category 'DXing'
  admin - November - 1 - 2020 - Comments Off on Real-time competition: online scoreboards

For the active contester, seeing your performance moment-by-moment ranked against the performance of other participants can be a real motivator. Welcome to online scoreboards!

  admin - October - 25 - 2020 - Comments Off on FT8/FT4 from a contester’s perspective

Why do I compete in the growing number of WSJT-X-friendly contest offerings? Because they are there, and even more important, a LOT of people who are new to contesting have been drawn to radiosport because they enjoy FT8 and FT4 modes.

  admin - December - 8 - 2017 - Comments Off on ARRL 160M pre- and post-contest

The Zone Zero podcast featured two episodes devoted to the 2017 ARRL 160M contest. See how I thought I would do in the contest, then listen to how I actually did.

  admin - May - 9 - 2016 - Comments Off on Heathkit SB-221 brought back to life

An overview of my SB-221 amplifier repair project — a notebook about what it needed and what I did.

  admin - January - 23 - 2016 - Comments Off on The Large and Powerful Spider Beam

Here’s a homemade, lightweight but full-size triband yagi (with directors and reflectors in V configuration) interlaced on a 32-foot boom. And it works like a dream.

  admin - January - 23 - 2016 - Comments Off on Hybrid wire element SteppIR 40M yagi

Expand a 40M rotatable dipole into a 2-element yagi with a fixed wire element. Add a relay to the wire and get instant 180-degree rotation, too.

  admin - September - 7 - 2015 - Comments Off on LED lighting for CDE/Hygain rotator meter

Tired of burned-out bulbs in your CDE rotator meter? Replace the bulb with an LED strip — it’s inexpensive and LEDs will last a very long time.

  admin - August - 15 - 2015 - Comments Off on Rebuilding the radio room

Big plans for the radio “shack” at VA7ST… will it ever be built?

  admin - July - 10 - 2015 - Comments Off on Astron power supply digital meter (volts/amps)

Want to know what that “blind” power supply is putting out? Add a digital volt/ammeter to your meterless Astron power supply

  admin - June - 30 - 2014 - Add Comments

Here’s my perspective from the West Coast, looking at what we do that may be different from the tactics of contest stations located further East.

Propagation Now

Time of latest WWV report Solar flux index -- from SWPC WWV.txt Day's sunspot count -- from SWPC dayind.txt Current A-index -- from SWPC curind.txt Curren K-index -- from SWPC curind.txt Geomagnetic condition based on current A-index and K-index levels GOES 14 Solar X-ray flux -- A or B is good, C M or X is not good Calculated band conditions based on +/- points awarded for latest: A-index, Aurora level, X-ray flux, Solar Flux Index, and typical utility of each band group during hours of daylight or darkness Latest OVATION-prime aurora forecast images K-index (3-hour readings from Boulder, CO) for the past 24 hours Solar Flux and Sunspots for the past 14 days Developed for the Orca DX and Contest Club by VA7ST
Use Control-F5 for latest image