Monday, August 30, 2010

TechNet

On August 5th, I went to the M.A.A.R.C. Meeting and discussed to those in attendance about the club hosting a TechNet on the 146.940 repeater.

This is a sample of what I am thinking of in response from of those interested in being a part of the TechNet;

M.A.A.R.C. TechNet.

Topics include the latest news in the worlds manned and unmanned space programs, aeronautics, astronomy events and new discoveries. We will also cover Amateur Astronomy, Model, Mid and High Powered Rocketry, as well as Amateur Radio activities related to space such as monitoring meteor activity, contacting the International Space Station, using Amateur Radio Satellites, EME (Moonbounce) and how to use Orbital Plotting software.
Outside of Space topics we will also discuss;
How to use your radio, Radio Orienteering,Building mini transmitters for ROCA, Antenna Construction,Sound Card-to-Rig Interfaces, Cables and Connectors, DSP Manufacturers, Interfaces Manufacturers, Radio Manufacturers, Packet Radio, PSK31, Radio Programming Cables, RTTY, Ham Radio Software, Networking issues, Operating System issues and many other High Tech Radio-Computer related issues. This is just a few suggestions.
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My Stamp Collecting Blog

My Stamp Collecting Blog

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HOW TO READ PROPAGATION NUMBERS

The A index [ LOW is GOOD ]

  • 1 to 6 is BEST
  • 7 to 9 is OK
  • 11 or more is BAD

Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.

A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.

SFI index [ HIGH is GOOD ]

  • 70 NOT GOOD
  • 80 GOOD
  • 90 BETTER
  • 100+ BEST

The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.

Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.

K index [ LOW is GOOD ]

  • 0 or 1 is BEST
  • 2 is OK
  • 3 or more is BAD
  • 5 is VERY VERY BAD

The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.

A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.

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