[R-390] antennas

Tim Shoppa shoppa_r390a at trailing-edge.com
Wed Oct 17 09:59:34 EDT 2007


Rasputin Novgorod <priapulus at yahoo.com> wrote:
> In the good old days, how would the military connect the 
> Balanced connector to a dipole? Would they have some 
> sort of 125 ohm dual conductor coax?

Twinax, especially in high-RFI environments. Sometimes the RFI
was local stuff like generators etc.

> Surely not ladderline.

Conceptually this is not a problem especially when there isn't
much noise.

The Y2K manual is well known here but I have a Xerox of part
of a paper military "installation" manual too. It shows some
common antenna hookups that are kind-of geared toward the grunt
who doesn't know much about radio antennas, with hints about
keeping away from generators, local transmitters, etc. Does anyone
recognize this manual from my description? I'm missing the first 
couple of pages!

Tim.


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