Articles with tag “Satellite Operations”

APRS SATCOM base antennas

Years ago, Bob Bruninga, WB4APR, talked about a "good" antenna for APRS SATCOM applications.  It was a 19-inch vertical antenna that would function on both the 2m and 70cm bands, and had lobes that were up around the 30-degree mark.  Looking for information on that antenna last night I found …

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Breaking the Arrow Antenna's diplexer

The Arrow Antenna for satellites has an optional diplexer that allows easy operation of 2m and 70cm from a single feedline.  I've used this configuration for over ten years with no problems.  I'm not sure, exactly, what happened but the diplexer failed.  After ordering a new one I started digging …

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FO-29 Success

Yesterday I had a broken QSO with K9?H?.  We were running CW and between the fading, the Doppler shift, and my poor CW skills I couldn't quite get the full callsign and exchange. And then, of course, I was also chasing myself all over the transponder.  This morning was …

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First attempts at FO-29

I had a good pass of FO-29 this morning so I figured I'd give it a try with my 2m/70cm loop antenna.  I wasn't expecting great things as this is not a gain antenna and I'm not sure how much of the signal is actually radiated up but I …

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QSL from YV4DYJ

Opened the mailbox this afternoon and found my QSL from Victor Cuesta YV4DYJ of whom I worked on AO-51 back in September.  Very cool.  Glad I was able to make this contact using 5 watts and my hand-held station in my front yard.

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Satellite Operations: Action items

Things I need to purchase:

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Worked AO-16 from inside using???

I just worked a pass on AO-16. Heck yeah it was early. But having the bird all to myself at 5:45 in the morning means I get to test my antennas without stepping on anyone else. I did work N8OQ but it wasn't easy. And I'm not really sure …

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Satellite Operations: Antenna Support

Now comes the interesting part. How do I hold up my antennas so they can twist and turn as required? I don't plan to be in the same location in two years so I don't want to do anything permanent. I currently have a 30-foot pole up next to the …

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Satellite Operations: 2m and 70cm Antennas

The most important part to a radio station is the antennas. You could probably lump in the feedline as well but I think I have that figured out for the moment.

So what antennas do I already have and what do I need.

Have:

  • 11-element 2m beam (single polarization, currently …

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Satellite Operations

I'm ready to take the next step. I have a set of azimuth and elevation rotators and I even have a 2M beam. I think it is time I get serious about my satellite operations. Not that I don't have fun working the FM birds via my HT and an …

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