Minutes of the OVH Club Meeting
November 20, 2006
John / KG4NXT called meeting to order at 1933 Eastern Time.
Following the Pledge of Allegiance, all present stated their names and call signs. There were 15 OVH members and two guests present.
JOTA – Theresa / KG4TVM – We had a tremendous turnout of 21 scouts and four scout leaders at
JOTA, and everyone had a great time.
Theresa thanked Al / KB4
REPEATERS - Art / W1
MINUTES – The minutes of the October 2006 OVH meeting were approved.
MEMBERSHIP – Joe / KI4OHR – Phineas “Finny” Hensaw / K0KMA was read in and will be voted on at the December 2006 meeting.
SUNSHINE – Steve / N4OGR – Longtime OVH member Bill Killmer / WB4KFU became a silent key on
Joe / KI4OHR noted that he received an e-mail
from ARRL stating that the application for the event (May 2007) regarding
TREASURER’S REPORT – Bill / N3OH – Bill read the Treasurer’s Report.
OVH’s very own Mark Bronstein / WA4KFZ gave a very interesting presentation on satellite communications. Mark displayed an HT connected to a handheld 2M/440 antenna, and noted that satellite communications can be accomplished with a minimal amount of equipment. A satellite is basically just a repeater in space, and several types of communications can be done. Most of the satellites are “low earth orbit” (LEO) satellites. They’re about 800 KM up. Most of the pass times, during which a station on earth can communicate with / through a satellite, are about ten minutes. The repeaters on the satellites normally run a 2M receiver and a 440 transmitter. The duel-band setup helps reduce interference between the two radios without the use of filters. Most satellite receivers run PL tones because they pick up so much background noise. Transmit power is usually less than a watt, so you need to turn your squelch off. Mark explained about the Doppler Effect, or frequency shift, that occurs as the satellite passes overhead. In addition to the 2M/440 satellites, there are also single sideband satellites that that receive a broad receiver signal and then shift it to a broad transmit signal. This allows for multiple users. To use a handheld antenna, you just need to know the current time and have a general good sense of direction. Since the handheld antennas have a fairly broad beam width, you don’t have to be perfect. Mark recommends using off times as there are so many hams trying to communicate through satellites during peak times. On a clear night, you can actually see LEO satellites passing overhead, despite the fact that they are quite small. Many of the Amateur Radio Satellites were launched from old Soviet ICBMs. There are several websites that provide information on the timing and location of amateur radio satellites. The “Heavens Above” website is quite popular. Thank you Mark for your very interesting presentation on Amateur Radio Satellites.
EDUCATION – Brian / WC4J – We have four people in the Technician class, and they will be taking the technician exam following the conclusion of the exam. Trisha / KI4PCM has been very helpful in putting on the class. Thank you Brian and Trisha.
Al / KB4
Art / W1
Brian / WC4J noted that there will be a Skywarn event the first weekend in December.
50/50 – $17 was collected, and Craig / WA3UFY won and donated his winning share back to the Club. Thank you Craig.
The meeting adjourned at 2041 Eastern time.