[NLRS] If I wanted to be a beacon...

Mon, 14 Jul 2003 18:08:01 -0500

Hi Mike,

I have a marker on 24 GHz.   I use a Frequency West Brick that was labeled
11.6 to 12 GHz and uses an external reference.   I have a 108 MHz xtal osc
I use for a reference.   I  tuned the 108 so the output on the Frequency is
12.050 GHz.   It has about 14 mw out.  It works well as a marker on 24.100.
I had to retune the output filter on the brick to 12 GHz and it works fine.
Donn and I have used it to  check where we are.

I have an HP 5340A counter that is rated to 19 GHz but does work up to a bit
over 24 GHz.

Thanks for the HEADSUP on the e-bay 24 GHz amps.  I  got one.

John, W0FQA, Gary, W0GHZ, and I just worked on rain scatter.

73 Bob W�AUS
-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Mike A. King - KM0T
Sent: Monday, July 14, 2003 1:29 PM
To: NLRS
Subject: [NLRS] If I wanted to be a beacon...

How would I build myself?

I want to build a 24.192 Ghz beacon / signal source.  Here is what I know
and hope that some of you fine folks have some ideas.  Cause Im going to
central states in a few weeks and perhaps parts may show up?

This would make a good beacon project as well as a weak signal source for
testing, etc.  Perhaps just set up when doing 24 ghz with a 17 db horn, that
way with that wide beamwidth, would make it easy to find at least one side
to get pointing going.

Easy way...

Get a DB6NT MKU 24LO - it has a 24,192,900 output, +/- 100 KHZ.  good power
out, 5mW.  It would drive one of those new 1 Watt amps really nice.
However, it too would seem to far away from 24,192.100 for any good use.  To
much QSying around.

Fun way...

Find a LO and drive one of those 2x multipliers from ebay.  +7dbm output.
(only 39 bucks)

So, the question is where do I find an LO or build, etc.

DB6NT has a 12.024 Ghz LO, but its the same price as the MKU 24LO, so that
makes no sense.

I would like to get an LO that was 12.096 Ghz so it was right at 24,192 Ghz
with a 2x Mult.  Stability would be nice.

Can anyone point me in the right direction as far as options here?  I have
heard that PLL would be good for freq stability.  But tend to be noisey?
Perhaps as a beacon, this is not an issue.

Might be a fun project and I would learn a ton as well.

Keying and all that buiz, will cover later once the LO issues are resolved.

Thanks!

73

Mike - KM0T

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