[Lowfer] Misc...

Sat, 18 Oct 2003 16:07:55 -0700

My HiFER Beacon project will be put on hold to a minor extent.  I really
need the bench space to rebuild my truck's engine this winter...  I hope to
have space to work on the beacon to give me a break in between major engine
component purchases.  I may just jack up the steering wheel and install a
new truck to save time.

The 2' dish was for 12 GHz, part of a video link.  It is 1/8" spun aluminum
and made by Andrews.  I have the mounts and buttonhook feed which is one
size too small for 10 GHz.  Now if I could only find a WR-90 to -75
adapter...  Or a -75 Gunnplexer!

Kurt

---
Ross Technologies Signals Intelligence Division
Rosetta Proving Ground
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Saturday, October 18, 2003 15:59
Subject: Re: [Lowfer] A little lower than lowfer...

> Hi Kurt,
>   That would be a great dish for 18 GHz!  I use a 2' dish for 10 GHz. I
> don't think it would work on 18 KHz, but I know some of my fellow birders
> use similar size dishes for listening to bird songs at a distance so
> maybe?  Can anyone explain why a 2' dish will not even work well at 50
> Mhz, but does provide gain at the audio frequencies?
> Doug W0AH
>
> > Maybe someone can advise...
> >
> > I have a 14 channel ultrsonic transmitter I hve been playing with.  It
> > is fairly low power, at least to me, my wife smacked me when I turned
> > it on in the house, and broadbeamed.  I haven't measured the
> > frequencies yet, but I would guess the highest is around 18 KHz.  I am
> > in need of projecting this acoustic wave about 700' at about 100' max
> > divergence.  I have a 2' aluminum parabola, would this work for this
> > purpose?
> >
> > Is there a list around that deals with this sort of experimentation?
> >
> > Kurt
> >
> > ---
> > Ross Technologies Signals Intelligence Division
> > Rosetta Proving Ground
> >
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