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RE: portable operating technique with Arrow
- Subject: RE: [amsat-bb] portable operating technique with Arrow
- From: Tony Langdon <tlangdon@xxxxxxxxxxxxxxxxxx>
- Date: Tue, 24 Apr 2001 09:54:06 +1000
> Yeah, that was always an issue for me. I never did set up a
> satisfactory
> recorder rig. And now that I have one in my Linux box, I
> don't need it quite so
> bad.
I had some success using an FM wireless mic to link to a portable recorder.
A second FM receiver was then used to drive the headphones so I could hear
the bird myself. This worked _brilliantly_ for SO-35. On the J birds,
there were a couple of hiccups:
1. The frequency of my FM transmitter (around 87-88 MHz) was close to 1/5th
of the 435 MHz downlinks, so I tended to QRM myself with the 5th harmonic.
2. Some FM receivers get desensed when transmitting on 2m...
With a bit of work, one could overcome these limitations.
>
> > I have a PalmPilot that could run PocketSat, but paper
> Ephemeris printouts are
> > smaller, lighter, easier to use, and don't require batteries.
>
> And if you need to make a stop in the woods, you can find an
> alternative use for
> them, especially the expired ones. Use as soft a paper as
> your printer will
> accept...
Hehehe, I actually just take note of the rise and set positions of the bird
and mentally visualise the path it will take. Rx signal strength is all I
need then to point the beam in the right patch of the sky.
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