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G0FTD > CLUBS 16.12.07 16:33l 67 Lines 2421 Bytes #999 (0) @ WW
BID : GCHON0AR_0N4
Read: GUEST DK3EL DK3HG
Subj: Re: What do you do??
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Sent: 071216/1425z @:ON0AR.#AN.BEL.EU [BBS Antwerpen] OBcm1.07b3
From: G0FTD @ ON0AR.#AN.BEL.EU (Luc)
To: CLUBS @ WW
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Date: Mon, 10 Dec 2007 00:19:49 +0000
From: g0ftd@gb7pzt.#24.gbr.eu (Andy)
To: clubs@ww
Subject: Re: What do you do??
VK3API wrote:-
> I wonder what radio clubs all over the world are doing in the line of
> lectures.
Dunno about that as I haven't been to a radio club for about 20 years.
About a year or two ago I overheard a QSO from some amateurs who go to the
local radio club talking about the new club venue.
I decided to see what happens these days so took a trip to it unannounced
and anonymously. As I approached the hall I listened to some of the
conversation that were spilling out into the hallway leading up to the
room.
It went something like this:
Amateur 1: I get a lot of noise on my G5RV.
Amateur 2: Does your G5RV use coax or just twin feeder ?
Amateur 1: Twin feeder...
Amateur 2: Ah well you need to use some coax instead. Because it's your
neighbour's TV bleeding over noise onto your aerial.
At that point I turned around and went home unnoticed ;-)
Anyway here's a few ideas for your club nights.
- Hows about a lecture on how to determine by manual methods how an aerial
will radiate.
- Or why 28Mhz is not really dead, it's just that noone is bothering..
- Propagation modelling software and how to use it.
- How to measure <aerial impedance/power without a commercial meter or
some other parameters through knowing and understanding how to do it.
- Use and abuse of ferrite's and other material. The different grades
of; frequency of operation and power handling; how to choose the
correct ferrite core/toroid for a particular job.
- Same as above, but for other components like capacitors, stuff like
why certain dielectric material is used etc.
- A practical demonstration of CW/SSB,correct filtering and why cw is
still the ultimate mode to "get through".
There's a few ideas for you, assuming you have radio amateurs in the club
old enough to stay out after 8pm and want to learn radio instead
of signing cheques for ready made G5RV's and all that crap.
- Andy -
G0FTD @ GB7PZT
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