Michigan Amateurs
Team Up With State

ARRL Michigan Section Manager Dale Williams, WA8EFK, and Michigan SEC John McDonough, WB8RCR, have been working with the Homeland Security Division of the Michigan State Police Emergency Management office to align the capabilities of the Amateur Radio Public Service Corps (ARPSC) more closely with the communications needs of the state's public service agencies.
  ARPSC -- Michigan's integrated ARES/RACES program -- also participates in the Michigan State Department Emergency Management Coordinators Quarterly meetings at the State EOC. It is here, Williams said, that discussion of the Public Safety communications grants are discussed and their investment justifications are detailed. "We have been afforded the opportunity to discuss Amateur Radio's involvement with communications interoperability, as well as our ability to fill gaps in disparate networks and outages. As a result of these conferences, I was asked to include a list of ARPSC's needs for the next three years."
  To further that end, Williams said that they have been successful in incorporating the ARPSC program into the Michigan State Preparedness Priorities. Michigan intends to develop the ARPSC into a fully integrated communications team operating under common standards and procedures, including maintaining and enhancing the statewide Amateur Radio communications system; establishing suggested standards for Amateur Radio capabilities in local Emergency Operations Centers; and developing a public awareness and education program to bolster the ranks of Amateur Radio participants. The hope, Williams said, is to have all of this implemented by 2010.
  Williams said, "Since the early 1980s, Michigan has operated an integrated ARES, RACES and NTS program referred to as the Michigan Amateur Radio Public Service Corps. By combining the forces of these normally separate structures, these valuable resources are pulled together to form an active trained and unified organization. The SEC also holds the positions of Section Traffic Manager and RACES Radio Officer. Membership in ARPSC is open to all amateurs and is structured to allow a beginning ham to progress from an entry-level position to a RACES-qualified operator by meeting specific training milestones."
  "There is no doubt that by presenting a unified organization, the Michigan ARPSC has demonstrated the effective use of resources, training and our unique capabilities so that we have become a well respected public service organization in the state," Williams said.--ARRL Letter


Vito Chiarappa (W6TH) wrote:
Comparing Radiation Patterns of Antennas Above Ground: Many theories of hams differ in many respects, so thought I would bring out a composite group of the radiation angle of the Yagi, Vertical and the Dipole antennas. Now with all grouped together one will be able to determine which is most feasible for each as to labor, cost and time.
Yagi Antenna Vertical Radiation Height Above Ground:
Wavelength      Degrees
1/4                     32                               
1/2                     30                               
3/4                     20                               
1.0                     15 & 45                                 
Vertical Radiation For Vertical Antennas:
Wavelength      Degrees           
1/4                     30                       
3/8                     25                             
1/2                     15                                 
5/8                     10
Radiation Angle For A Dipole Antenna:
Wavelength       Degrees
1/8                       90
1/4                       60
1/2                       30
3/4                       20 & 90
1.0                       15 & 45
You will notice that a horizontal antenna mounted one half wavelength above ground is capable of working DX, but the 1/4 vertical antenna is very competitive.
      Why not try them all and then decide which is best for you. As to me, I would prefer the vertical 5/8 over the yagi at one wavelength above ground. This is because the power split on the main lobe is going in two different paths towards the DX station. One is a high angle and the other a low angle. --  Something to be considered.
By some simple math you can find your own angle of radiation for a horizontal antenna at a certain height above the earth ground.
Gain is meaningful only when considered with only reference to a particular communications path and set of propagation conditions.
      73, and hope this information is of importance to all.

Board of Directors

Bill Booth

Vice President
Norman "Ned" Davis

John Davidson

Elizabeth (Rene) Bush

Past President
Lewis (Lou) Ryason

Advisory Committee

Russ Beutler

Technical Engineer
David Gerber

Marion Davidson

SMARS Web Site
All correspondence
should be addressed to
P. O. box 934
Battle Creek, MI. 49016

The stoplight on the corner buzzes when it's safe to cross the street. I was crossing with a coworker of mine when she asked if I knew what the buzzer was for. I explained that it signals blind people when the light is red.

Appalled, she responded, " What on earth are blind people doing driving?!"

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