PROJECTS

MICROWAVES WITH A DIFFERENCE BY YVONNE ZR6TBL
The most dangerous cake recipe in the world! Well, microwaves are used in many different ways, the way of this demonstration is "microwave ovens". So many hams in our club are single or live alone with their spouses now that the children have flown the coup.... so this handy recipe will give many a 'warm fuzzy moment'. Just for something extra I added the info on how to make an egg omelette in a Jiffy zip-loc bag. MicrowaveFun.pdf


ECHOLINK CQ100 BY YVONNE ZR6TBL
What are these two modes of communication? Many hear about these two modes of operation. EchoLink has been around for a long time now and CQ100 is newer. Both are digital modes of communication but only available to licensed amateurs. EchoLink is free and CQ100 has a yearly fee. For a little more about them see the article below. EchoLinkCQ100.pdf


BALUNS BY TON ZS6ANA
For those who want to build a 1:6 balun for the HF frequencies, here is a schematic diagram 1:6 Balun.pdf For those who are looking for a 1.2:1 balun for HF frequencies. 50:72 ohm Balun.pdf. For those who are looking for a 4:1 balun for HF frequencies 50:200 ohm Balun.pdf


20 M DIPOLE - FROM CQ BOLAND
Hierdie antenna kom uit die CQ DL van 7/2001 en geen oorspronklikheid vir die skrywer word hiermee geimpliseer nie. Dit is 'n eenvoudige 20m antenna wat vinnig en maklik vervaardig en opgesit kan word. 20 M Antenna.pdf


MOON BOUNCE AND METEOR SCATTERDICK COATES - ZS6BUN
Dick gave an interesting presentation to the club on Moon Bounce and Meteor Scatter. This is a copy of an email he sent to me with the main links and information. If anyone has any further questions I am sure you could email him and he would be more than happy to assist in promoting this exciting aspect of our hobby. Moon Bounce.pdf


CALCULATING A LINK BY FRANK PA3GMP / ZS6TMV
What is a link budget? Simply put, a link budget is the sum and total of all gains and losses in the radio connection between two parties from end to end, including antenna's, feed lines and the path between the antenna's, but also the relevant portions of the transmitter and the receiver, as well as miscellaneous gains and losses. The full article explains it all. Calculating a link budget


SOME CONSIDERATIONS IN THE USE OF A POPULAR INSTRUMENT
This short article explains how the Monimatch operates and some common circumstances under which it may give misleading information. This article is copied from the QST the QST, August 1964. Use of a Popular Instrument


BROAD-BAND BALUN
The balun transformer is not new and has appeared in a variety of forms, the most popular of which are the bifilar air-wound coils for the low frequencies and the half-wave coaxial-line type. This article was discussed on our bulletin and as promised, here is the entire article, copied from the QST. Broad-Band Balun


ALL YOU NEED TO KNOW ABOUT NON RESONANT ANTENNAS
It is a basic truism that you can't get something for nothing, but I am not using "easy way" in this context. Rather, I am using "easy way" as the opposite of "hard way"...and as I talk to hams, on the air or in person, I get the feeling that many of us are, indeed, doing it the hard way. A real challenge, though, is getting hams to believe what I am going to say.... and I am going set forth some principles that you must accept, without reservation, before we can develop what follows. Of course, I cannot expect you to accept this "gospel" from just one source, so I begin with qualifying words from several authorities who carry blue- ribbon credentials. Non Resonant Antennas


A QFH ANTENNA FOR THE WEATHER SATELLITE BAND.
This artical describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials, PVC plumbing pipe and RG-58U co-axial cable. No bending or soldering of copper pipe required. QFH 2 for 137

 

 

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