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Author Topic: 13 and 23cm downlinks  (Read 3249 times)

KD7RDZI2

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13 and 23cm downlinks
« on: July 14, 2017, 10:25:58 AM »

Hi, is there any SSB or FM working sat with 13 or 23cm downlinks?
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KJ4HVL

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RE: 13 and 23cm downlinks
« Reply #1 on: July 14, 2017, 11:04:23 AM »

IT looks like UKube-1 has an S-band downlink, not sure if it is operational.

http://www.amsat.org/status/ has details on a a list of birds.
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VE6MB

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RE: 13 and 23cm downlinks
« Reply #2 on: July 14, 2017, 11:41:13 AM »

I'm far from being an authority on the latest satellites, etc. But I tried to research this not that long ago and found nothing that was operational or active on those bands (13cm, 23cm) which was workable from the Western Hemisphere (or at least the North American continent).

Valentino, VE6MB
Calgary, AB
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N8HM

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RE: 13 and 23cm downlinks
« Reply #3 on: July 14, 2017, 12:05:29 PM »

The amateur satellite service is earth to space only at 23 cm, so you'll never have a 23 cm downlink.

Three satellites are currently scheduled to carry 23 cm uplinks in the future: Fox-1Cliff, Fox-1D, and FUNcube on ESEO.

A few satellites carry S band transmitters, but they are frequently only activated for high speed telemetry over their main ground stations. I don't know of any satellite with a general purpose 13 cm downlink nor do I know of any that are planned.
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KJ4HVL

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RE: 13 and 23cm downlinks
« Reply #4 on: July 19, 2017, 08:57:30 AM »

The amateur satellite service is earth to space only at 23 cm, so you'll never have a 23 cm downlink.

Three satellites are currently scheduled to carry 23 cm uplinks in the future: Fox-1Cliff, Fox-1D, and FUNcube on ESEO.

A few satellites carry S band transmitters, but they are frequently only activated for high speed telemetry over their main ground stations. I don't know of any satellite with a general purpose 13 cm downlink nor do I know of any that are planned.

Spot on, we had a few S-band 23cm downlinks, but they were specially licensed experimental radios and the power draw was enormous (for a cubesat) so they were only scheduled to be on for about 15 minutes a week.
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