DSES Science Meeting October 26, 2020

Welcome to the DSES Science meeting 10-26-2020

2020-10-26 DSES Science Meeting Notes:   by Bill Miller

We had 14 participants in the virtual science meeting today:  Thanks everyone for joining.

Participants: Dr. Rich Russel,  Ray Uberecken, Chad Carter N0ZMG, Don Lewis, Matt Mathews, Bob Haggart, Michael Nameika, Gary Agranat,  Jonathan Ayers,Floyd Glick, Don Latham, Myron Babcock, Ted Cline on Phone, Bill Miller

Also see the Zoom Video Recording for more detail:


Agenda and notes:

  1. Myron’s Treasure’s Report Checking $1756 Savings $5742.05  September electric Bill $90
  2. Rich:  See all notes in the DSES Science Meeting Power Point. DSES-Science-Meeting-10-26-20.pdf
  3. Ray
    • Problem with the 1296 MHz feed last weekend.  Took down the Feed amplifier and found the unit was stuck in the transmit configuration due to a failed FET in the Relay driver.  Fixed this and added a gate protection resistor to solve the problem. 
    • A second issue was discovered with one of the coaxial swivel joints that failed on the feed lines.  Will find a new swivel joint or alternate method of coupling the coax while allowing for the cable wrap.
    • See slide 4 of Rich’s slide presentation above.
  4. Gary EME report.
    • Ray has JT65 digital setup ready
      • Use WSJT 10.0 Program for EME.
    • On November 28 and 29th there will be another EME contest under nearly a full moon.
    • Nov 27 – 28 Moon Rise 3:19 PM  set at 5:03 AM
    • Nov 28  – Nov 29th Moon rise 3:47 PM to about 6:03 AM
    • We will benefit by organizing the operation trip, to utilize our time while the moon is overhead with multiple operators.
    • Morse code is simple and effective.  Can be done with the computer keyboard or with a keyer.
    • Simple protocol of multiple repeats on Call sign, signal report and acknowledgement should be followed.
    • Signals experience polarization rotation, we therefore circularly polarize our signal.
    • Operation on JT65C will be added.
    • Operating EME is an experience you won’t forget
  5. Astronomy at Hydrogen Line 1420.406 MHz:  See Rich’s PPT presentation page 6 to end.
  6. SARA “Radio Astronomy in a Box” costs about $250 and is a great platform for a science fair project. Rich has one for evaluation and will lend to a worthy student.
    • 2.4 G dish
    • Stellarium planetarium software
    • Can be used for science fair
    • Don’t download the SW, as it has a virus.
    • Rich has another source of virus free SW.
  7. We have a new student member, Michael Nameika who is a student at UCCS interested in Astrophysics and Radio Astronomy.  He has been working with Professor Floyd Glick at the PPCC observatory and with Steve Plock.  Welcome, Michael.
  8. Myron Babcock, DSES Treasurer, has received a very generous donation of a Yaesu FT-736R from  N6KN, Rocco Lardiere in California.   He also triple boxed the unit and paid the FedEx postage to ensure that it arrived in great shape.  This will make an excellent addition to our radio resources and backup to our high band EME and Tropo communication.  Thank you, Rocco.