More RF testing at the P3D laboratory


I was back in Orlando for more RF testing in June 1999


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Some photos of events during this stay:

- Rick checking out the thermal blanket ( 138k ) ( photo: Wilfried Gladisch )

- Wilfried Gladisch preparing ( 133 k ) for some technical photographs ( photo: W. Gladisch )

- Werner Haas pondering ( 119k ) on the RF hardware ( photo: W. Gladisch )

- Peter Guelzow checking out antenna alignment ( 92k ) ( photo: W. Gladisch )

- the modified and motorized bicycle wheel ( 78k ) for simulating rotation in the sun !

- the bicycle wheel, 12 V auto lamp, Campbells soup can etc. that form the solar simulator ( 92k )

- the bicycle wheel assembly in use ( 92k ) during calibration of sun sensor

- Professor Karl Meinzer, Danny Orban and myself studying the amazing calibration tool ( 66k )

- foam sheets are used to thermally isolate ( 75k ) the AMSAT-OH 10 GHz antenna horns

- closeup of the S-band RHCP helix ( 60k ) antenna

- zoom view of the S-band prime focus RHCP dish feed( 64k )

- Stan Wood assembling the omni ( 85k ) antenna used for commanding

- closeup view of the C-band antenna RHCP feed( 42k )

- the feed for one of the V-band radiators ( 63k )

- overall view of the L-band ( 57 k ) short backfire antenna

- view of the P3D satellite "top side" as in flight configuration ( 89k )

- the spacecraft being moved ( 92k ) from the clean room to the tent outside for tests

- a different view of the spacecraft being rolled out ( 78k ) to the tent

- some of the RF tests were made with the spacecraft upside down ( 71k ) with absorpion material used as the load

- testing the onboard microphone, (196 k) with a hammer against the support structure...

- a somewhat compressed version (72 k) of above sound file

- spectrogram (90 k) of the above sound file as analysed with R.S. Horne's fabulous software !

- keeping beverages ( 90k ) cool in the evening was difficult with 30 - 40 degrees C temperatures...

- this trip was sponsored by AMSAT-DL


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Updated 11:17 21:9:1999