October 2 The Repeater System, K4PE
For more information about repeaters see
http://www.repeater-builder.com/rbtip/
Also check out the following Yahoo Groups:
http://groups.yahoo.com/group/GE-MastrII/
http://groups.yahoo.com/group/LMR/
http://groups.yahoo.com/group/Repeater/
http://groups.yahoo.com/group/Repeater-Builder/
http://groups.yahoo.com/group/Repeaters
September 4: Emergency Communcations, David Ziskind KE4QLH
March 6: Larry Wade, with the USDA Forrest Service. Larry is the Southern Region Deputy Director of Information Technology - which includes radio. He is looking forward to speaking at our club meeting on March 6, and is planning on bringing two of their field guys with him. He is planning on discussing Forrest service communications in general, and then specifically addressing amateur involvement.
February 6 QRP Night, presented by the North Georgia QRP Club
January 9, 2003 Radio Astronomy
November 7 IRLP
October 3rd: Yagi design and construction by Tom Cailloux, W4EGT
September 5th: Ron Langston, WE5O, talks about building wire antennas and other ham radio adventures that can had in your own back yard.
August 1st: Elections and a QSL card show-and-tell MC'd by Wayne, K4WK.
July 11, 2002: SMT or Surface Mount Technology by Keith Hamrick of Pace Worldwide.
May 2, 2002: SATERN and the Ham Radio response to September 11th in NYC by Jim, WA2EIU.
April 4, 2002: Southeast Antique Radio Society, Marty Reynolds, AA4RM, QRP in the Roaring 20's
March 7, 2002: Ham Radio Applications for Linux, Matt Caldwell, KD4BKU
February 7, 2002: Installing Linux, Robin Cutshaw, N4OUT
November 1, 2001: U.S. Coast Guard, Eric Glascott, W4EMG
October 4, 2001: QRP, Ken Evans, W4DU
September 6, 2001: Station Grounding by Dennis, KF4MHW
August 2, 2001: Penn McClatchey, K4PE, Internet Radio Linking Project
July 5, 2001: David Schornak, KG4LSK, APRS.
May 31, 2001: Brennan Price, ARRL Staffer spoke about HF interference.
April 5, 2001: Working the world with your VHF/UHF HT.
Charles, N4TZM, presented IPhone.
Dennis, KF4MHW, talked about Remote base linking and audio considerations
a) Remote basing: SE VHF link net as a great example of how this technology works. Wednesday nights, 9PM, recommend operating practices.
b) hardware required
c) How it works: RF and audio considerations
i) line of site links
ii) pre-emphasized vs de-emphasized audio...some systems sound like a bunch of hash: its usually because they're xmitting audio that'sbeen emphasized twice.
d) IRLP - overview of how it works
i) works better for repeater-to-repeater linking and is free to the user. Doesn't depend onpropagation.
e) hardware and software required – computer, special boardand remote base radio
f) See http://www.irlp.net
Penn, K4PE, HF remote basing
a) What it is and how it works - FCC rules weigh heavily on this technology.
b) hardware required – see http://www.link-comm.com/rlc3manuals.html
March, 2001: ARES KM4Z, Lowry, told us about the Georgia Section of ARES. To learn more about check out http://www.qsl.net/gaares/
February, 2001: AMSAT W4EPI, Steve, told us about the latest with AMSAT. To learn more about check out http://www.amsat.org This was a slick and informative presentation. Steve is worth seeing if he comes to give this presentation at a local hamfest or club meeting nearby.
January 4, 2001: PSK-31 AD4S, Picket, introduced us to this exciting new HF mode. To learn more about PSK-31 check out http://www.psk31.com If you're operating HF now and have a computer, you can probably get started for less than $30.
November 11th, 2000 10:15 AM Kennesaw Mountain National Battlefield
David, KF4MDV, hosted a fox hunt on Saturday morning, November 11. The fox was a IC2000 running 5 watts about 30% of the time. We met at the Visitor's Center at 10:15AM and the hunt started promptly at 10:30AM. Here are the rules that we used:
1) The hunt will begin at 10:30 am at the Visitor's Center at Kennesaw National Park/Battleground. Hunters who are not there by 10:30 will not be allowed to participate.
2) The hunt will take place on the 2 meter band, with 144.275 as the primary frequency, and 144.555 as our back up frequency. If both of those frequencies are occupied at the time of the hunt, a new one will be announced just prior to the start.
3) Hunters may not work together, this is an individual event, with the exception of a bystander just wanting to learn about amateur radio.
4) A talk-in will be available on 146.880. This frequency will also be used to announce when the 1st, 2nd, and 3rd place winners are at the fox.
5) The fox will not be outside of the park, or on land not accessable to the general public. It will not be placed in such a way that it presents a hazard to hunters or the general public. It may or may not (probably won't)
be accessible via road, some walking will be needed.
6) When you arrive at the fox, it will have a sheet taped to it with general information: "This Amateur Radio Beacon Transmitter is licensed under Part 97 of the FCC regulations for an emergency preparedness drill. It does not present a hazard to the general public. Please do not touch this transmitter...."
When you arrive at the fox and inform us that you have done so on the talk-in frequency, we will ask you to read the 1st, 2nd, or 3rd one of these words in order to verify that you have indeed found the fox.
7) The hunt will take place as long as weather conditions are not an immediate hazard. Lightning or hail will result in the cancellation or delay of the hunt.
8) The fox will be transmitting at 5W, transmitting 20 secs out of each minute. Get a bearing and then move to your next location for another bearing.
9) Do not transmit on the fox frequency under any circumstances. Doing so will result in your Disqualification, as the additional transmission could cause a false bearing for other hunters.
10) Good luck and have fun!Thanks for Chris, KF4YDF, for finding the addresses to the sites discussed at the Nov. 2nd ARC meeting.
http://home.att.net/~jleggio/projects/rdf/rdf.htm - Maintained by WB2HOL, this page contains information and plans for various Radio Direction Finding projects. Some of the projects include the tape measure beam antennas,
attenuators, and various FOX timers and controllers.
http://members.aol.com/joek0ov/offatten.html - "Build an Offset Attenuator" contains plans for the offset attenuator, as featured in the May 1998 issue of "Homing In".
November 2nd 2000
David Thomaschik, KF4MDV, started the evening by showing us how he built a fox for the club using a BASIC stamp controller with our IC2000.
Next, Andy Glass, WD4MYL, shared his considerable expertise on direction finding. Andy is the most accomplished fox hunter I know. We did a hands-on, how-to session and recommended inexpensive antenna and attenuator projects.
October 5th 2000
Barry Ward, President of Atlanta Hobby Robot Club, will give our program for October. Barry will give us a primer on the BASIC Stamp controller. The BASIC STAMP is not specific to ham radio, but it is certainly of interest to our members because we love electronics and computers. Computers don't come much cheaper than Parallax's BASIC Stamp (http://www.parallax.com) . The device alone costs less than $50 and includes a printed circuit board the size of a large postage stamp containing a microprocessor, 256 bytes of EEPROM, 8 programmable I/O lines and a 5-volt regulator. One end of the board has a pair of sturdy clips for a 9-volt battery, which will run a STAMP for several days. One can get started with a comprehensive kit available at RadioShack.com for less than $100.
Typical Stamp applications include
General electronics
Home automation
Robotics
Prototyping
HAM related applications
Special effects in films
Industrial control
Geological instruments
Computer peripherals
Scale model hobbyists
Model train hobbyists
Hams have used the STAMP for balloon payload controllers, DTMF generators, rig interface, fox or propagation beacon controllers, weather stations, CW keyboards, and just any sort of industrial strength I/O you can imagine. Perhaps if there is interest we will assemble a fox beacon for a Fox Hunt. For one amazing example of how one ham used a Stamp controller to keep an eye on his house while he was at work, see http://www.icircuits.com/dats/qth.htm For a list of Stamp applications, see http://www.hth.com/filelibrary/txtfiles/losa.txt and for a Stamp FAQ see http://www.al-williams.com/wd5gnr/stampfaq.htm You can find out more about the Atlanta Hobby Robot Club at http://www.botlanta.org/
September 7, 2000
The program for the September 7, 2000, meeting was Military Affiliate Radio System or MARS. Our presenter was the Georgia MARS Director, Bill Little, W4WNL. Bill has just attended a nationwide conference on MARS. What is MARS you ask? To quote from their website, http://www.baskets.com/navymars/, "The Military Affiliate Radio System (MARS) is a Department of Defense sponsored program, established as separately managed and operated programs by the Army, Navy-Marine Corps and Air Force. MARS members are volunteer licensed amateur radio operators who are interested in providing auxiliary or emergency communications to local, national and international emergency and safety organizations, as an adjunct to normal communications."