[GreenKeys] rtty 101

Steve Schlink [email protected]
Fri, 14 Feb 2003 17:11:43 -0500


I also thank everyone for their replies.
Being week on the RF side, this was immensely enlightening to me.

I think that this thread has the makings for a  FAQ on RTTY 101.

Thanks,

Steve


At 02:27 PM 2/14/2003 -0700 gil smith  wrote:
>Hi folks:
>
>Thanks to everyone who replied (on-list and many off-list).  Several people
>mentioned that 3 to 24 KHz was not quite right.  Yeah, I'm not that much of
>a novice, but looking at the tables from 3xxx to 24xxx, I did presume THAT
>was KHz.
>
>Well, I dug out an old arrl antenna book last night and did some reading.
>There's more than meets the eye to this antenna business, but as most folks
>pointed out, for receiving it is not as critical.
>
>Anyway, my immediate concern is prepping a soon-to-be-sealed roof for
>antennas -- I think I will plan on some eyehooks on the parapet walls for
>suspending a horizontal wire or dipole, and a mounting plate for some sort
>of vertical (with some eyehooks for guy wires).  I also have a discone in
>place (currently for an aircraft receiver), which is good for about 25-meg
>and up.
>
>After I get antenna mounting locations ready, I was thinking of just
>putting some conduit to the locations, and adding coax and ground wires
>later.  I was also considering some sort of ground under the vertical --
>discussions on radials seem to vary for number/length etc.  What about
>simply stapling some wire mesh to the ceiling joists before sheetrock goes
>up?  The "attic" is only about a foot high, so this "groundplane" would be
>almost directly under the vertical.  Or is it better to plan a proper
>radial setup for something like 20m?  I know this is probably overkill for
>simple rx, but the place is just open wood framing now, so now is the time
>to get it done properly.
>
>thanks again for your feedback,
>
>gil


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